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1 | /* this works around a bug in mingw32 providing a non-working setjmp */ |
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2 | #define USE_NO_MINGW_SETJMP_TWO_ARGS |
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3 | |
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4 | #define NDEBUG 1 |
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5 | |
1 | #include "libcoro/coro.c" |
6 | #include "libcoro/coro.c" |
2 | |
7 | |
3 | #define PERL_NO_GET_CONTEXT |
8 | #define PERL_NO_GET_CONTEXT |
4 | #define PERL_EXT |
9 | #define PERL_EXT |
5 | |
10 | |
6 | #include "EXTERN.h" |
11 | #include "EXTERN.h" |
7 | #include "perl.h" |
12 | #include "perl.h" |
8 | #include "XSUB.h" |
13 | #include "XSUB.h" |
9 | #include "perliol.h" |
14 | #include "perliol.h" |
10 | |
15 | |
11 | #include "patchlevel.h" |
16 | #include "schmorp.h" |
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17 | #include "ecb.h" |
12 | |
18 | |
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19 | #include <stddef.h> |
13 | #include <stdio.h> |
20 | #include <stdio.h> |
14 | #include <errno.h> |
21 | #include <errno.h> |
15 | #include <assert.h> |
22 | #include <assert.h> |
16 | |
23 | |
17 | #ifdef WIN32 |
24 | #ifndef SVs_PADSTALE |
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25 | # define SVs_PADSTALE 0 |
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26 | #endif |
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27 | |
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28 | #if defined(_WIN32) |
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29 | # undef HAS_GETTIMEOFDAY |
18 | # undef setjmp |
30 | # undef setjmp |
19 | # undef longjmp |
31 | # undef longjmp |
20 | # undef _exit |
32 | # undef _exit |
21 | # define setjmp _setjmp // deep magic, don't ask |
33 | # define setjmp _setjmp /* deep magic */ |
22 | #else |
34 | #else |
23 | # include <inttypes.h> /* most portable stdint.h */ |
35 | # include <inttypes.h> /* most portable stdint.h */ |
24 | #endif |
36 | #endif |
25 | |
37 | |
26 | #ifdef HAVE_MMAP |
38 | #if HAVE_MMAP |
27 | # include <unistd.h> |
39 | # include <unistd.h> |
28 | # include <sys/mman.h> |
40 | # include <sys/mman.h> |
29 | # ifndef MAP_ANONYMOUS |
41 | # ifndef MAP_ANONYMOUS |
30 | # ifdef MAP_ANON |
42 | # ifdef MAP_ANON |
31 | # define MAP_ANONYMOUS MAP_ANON |
43 | # define MAP_ANONYMOUS MAP_ANON |
… | |
… | |
46 | # define BOOT_PAGESIZE (void)0 |
58 | # define BOOT_PAGESIZE (void)0 |
47 | #endif |
59 | #endif |
48 | |
60 | |
49 | #if CORO_USE_VALGRIND |
61 | #if CORO_USE_VALGRIND |
50 | # include <valgrind/valgrind.h> |
62 | # include <valgrind/valgrind.h> |
51 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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52 | #else |
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53 | # define REGISTER_STACK(cctx,start,end) |
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54 | #endif |
63 | #endif |
55 | |
64 | |
56 | /* the maximum number of idle cctx that will be pooled */ |
65 | /* the maximum number of idle cctx that will be pooled */ |
57 | static int cctx_max_idle = 4; |
66 | static int cctx_max_idle = 4; |
58 | |
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59 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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60 | (PERL_REVISION > (a) \ |
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61 | || (PERL_REVISION == (a) \ |
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62 | && (PERL_VERSION > (b) \ |
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63 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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64 | |
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65 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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66 | # ifndef PL_ppaddr |
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67 | # define PL_ppaddr ppaddr |
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68 | # endif |
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69 | # ifndef call_sv |
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70 | # define call_sv perl_call_sv |
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71 | # endif |
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72 | # ifndef get_sv |
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73 | # define get_sv perl_get_sv |
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74 | # endif |
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75 | # ifndef get_cv |
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76 | # define get_cv perl_get_cv |
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77 | # endif |
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78 | # ifndef IS_PADGV |
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79 | # define IS_PADGV(v) 0 |
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80 | # endif |
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81 | # ifndef IS_PADCONST |
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82 | # define IS_PADCONST(v) 0 |
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83 | # endif |
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84 | #endif |
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85 | |
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86 | /* 5.11 */ |
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87 | #ifndef CxHASARGS |
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88 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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89 | #endif |
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90 | |
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91 | /* 5.10.0 */ |
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92 | #ifndef SvREFCNT_inc_NN |
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93 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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94 | #endif |
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95 | |
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96 | /* 5.8.8 */ |
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97 | #ifndef GV_NOTQUAL |
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98 | # define GV_NOTQUAL 0 |
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99 | #endif |
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100 | #ifndef newSV |
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101 | # define newSV(l) NEWSV(0,l) |
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102 | #endif |
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103 | |
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104 | /* 5.8.7 */ |
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105 | #ifndef SvRV_set |
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106 | # define SvRV_set(s,v) SvRV(s) = (v) |
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107 | #endif |
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108 | |
67 | |
109 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
68 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
110 | # undef CORO_STACKGUARD |
69 | # undef CORO_STACKGUARD |
111 | #endif |
70 | #endif |
112 | |
71 | |
… | |
… | |
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
78 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
120 | #endif |
79 | #endif |
121 | |
80 | |
122 | /* The next macros try to return the current stack pointer, in an as |
81 | /* The next macros try to return the current stack pointer, in an as |
123 | * portable way as possible. */ |
82 | * portable way as possible. */ |
124 | #define dSTACKLEVEL volatile char stacklevel |
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125 | #define STACKLEVEL ((void *)&stacklevel) |
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126 | |
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127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
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128 | |
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129 | #if __GNUC__ >= 3 |
83 | #if __GNUC__ >= 4 |
130 | # define attribute(x) __attribute__(x) |
84 | # define dSTACKLEVEL int stacklevel_dummy |
131 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
85 | # define STACKLEVEL __builtin_frame_address (0) |
132 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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133 | #else |
86 | #else |
134 | # define attribute(x) |
87 | # define dSTACKLEVEL volatile void *stacklevel |
135 | # define BARRIER |
88 | # define STACKLEVEL ((void *)&stacklevel) |
136 | # define expect(expr,value) (expr) |
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137 | #endif |
89 | #endif |
138 | |
90 | |
139 | #define expect_false(expr) expect ((expr) != 0, 0) |
91 | #define IN_DESTRUCT PL_dirty |
140 | #define expect_true(expr) expect ((expr) != 0, 1) |
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141 | |
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142 | #define NOINLINE attribute ((noinline)) |
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143 | |
92 | |
144 | #include "CoroAPI.h" |
93 | #include "CoroAPI.h" |
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94 | #define GCoroAPI (&coroapi) /* very sneaky */ |
145 | |
95 | |
146 | #ifdef USE_ITHREADS |
96 | #ifdef USE_ITHREADS |
147 | static perl_mutex coro_lock; |
97 | # if CORO_PTHREAD |
148 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
98 | static void *coro_thx; |
149 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
99 | # endif |
150 | #else |
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151 | # define LOCK (void)0 |
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152 | # define UNLOCK (void)0 |
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153 | #endif |
100 | #endif |
154 | |
101 | |
155 | /* helper storage struct for Coro::AIO */ |
102 | /* used in state.h */ |
156 | struct io_state |
103 | #define VAR(name,type) VARx(name, PL_ ## name, type) |
157 | { |
104 | |
158 | AV *res; |
105 | #ifdef __linux |
159 | int errorno; |
106 | # include <time.h> /* for timespec */ |
160 | I32 laststype; /* U16 in 5.10.0 */ |
107 | # include <syscall.h> /* for SYS_* */ |
161 | int laststatval; |
108 | # ifdef SYS_clock_gettime |
162 | Stat_t statcache; |
109 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
163 | }; |
110 | # define CORO_CLOCK_MONOTONIC 1 |
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111 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
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112 | # endif |
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113 | #endif |
164 | |
114 | |
165 | static double (*nvtime)(); /* so why doesn't it take void? */ |
115 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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116 | static void (*u2time)(pTHX_ UV ret[2]); |
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117 | |
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118 | /* we hijack an hopefully unused CV flag for our purposes */ |
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119 | #define CVf_SLF 0x4000 |
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120 | static OP *pp_slf (pTHX); |
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121 | static void slf_destroy (pTHX_ struct coro *coro); |
166 | |
122 | |
167 | static U32 cctx_gen; |
123 | static U32 cctx_gen; |
168 | static size_t cctx_stacksize = CORO_STACKSIZE; |
124 | static size_t cctx_stacksize = CORO_STACKSIZE; |
169 | static struct CoroAPI coroapi; |
125 | static struct CoroAPI coroapi; |
170 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
126 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
171 | static JMPENV *main_top_env; |
127 | static JMPENV *main_top_env; |
172 | static HV *coro_state_stash, *coro_stash; |
128 | static HV *coro_state_stash, *coro_stash; |
173 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
129 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
174 | |
130 | |
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131 | static AV *av_destroy; /* destruction queue */ |
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132 | static SV *sv_manager; /* the manager coro */ |
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133 | static SV *sv_idle; /* $Coro::idle */ |
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134 | |
175 | static GV *irsgv; /* $/ */ |
135 | static GV *irsgv; /* $/ */ |
176 | static GV *stdoutgv; /* *STDOUT */ |
136 | static GV *stdoutgv; /* *STDOUT */ |
177 | static SV *rv_diehook; |
137 | static SV *rv_diehook; |
178 | static SV *rv_warnhook; |
138 | static SV *rv_warnhook; |
179 | static HV *hv_sig; /* %SIG */ |
139 | static HV *hv_sig; /* %SIG */ |
180 | |
140 | |
181 | /* async_pool helper stuff */ |
141 | /* async_pool helper stuff */ |
182 | static SV *sv_pool_rss; |
142 | static SV *sv_pool_rss; |
183 | static SV *sv_pool_size; |
143 | static SV *sv_pool_size; |
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144 | static SV *sv_async_pool_idle; /* description string */ |
184 | static AV *av_async_pool; |
145 | static AV *av_async_pool; /* idle pool */ |
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146 | static SV *sv_Coro; /* class string */ |
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147 | static CV *cv_pool_handler; |
185 | |
148 | |
186 | /* Coro::AnyEvent */ |
149 | /* Coro::AnyEvent */ |
187 | static SV *sv_activity; |
150 | static SV *sv_activity; |
188 | |
151 | |
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152 | /* enable processtime/realtime profiling */ |
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153 | static char enable_times; |
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154 | typedef U32 coro_ts[2]; |
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155 | static coro_ts time_real, time_cpu; |
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156 | static char times_valid; |
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157 | |
189 | static struct coro_cctx *cctx_first; |
158 | static struct coro_cctx *cctx_first; |
190 | static int cctx_count, cctx_idle; |
159 | static int cctx_count, cctx_idle; |
191 | |
160 | |
192 | enum { |
161 | enum |
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162 | { |
193 | CC_MAPPED = 0x01, |
163 | CC_MAPPED = 0x01, |
194 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
164 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
195 | CC_TRACE = 0x04, |
165 | CC_TRACE = 0x04, |
196 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
166 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
197 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
167 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
198 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
168 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
199 | }; |
169 | }; |
200 | |
170 | |
201 | /* this is a structure representing a c-level coroutine */ |
171 | /* this is a structure representing a c-level coroutine */ |
202 | typedef struct coro_cctx { |
172 | typedef struct coro_cctx |
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173 | { |
203 | struct coro_cctx *next; |
174 | struct coro_cctx *next; |
204 | |
175 | |
205 | /* the stack */ |
176 | /* the stack */ |
206 | void *sptr; |
177 | void *sptr; |
207 | size_t ssize; |
178 | size_t ssize; |
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217 | int valgrind_id; |
188 | int valgrind_id; |
218 | #endif |
189 | #endif |
219 | unsigned char flags; |
190 | unsigned char flags; |
220 | } coro_cctx; |
191 | } coro_cctx; |
221 | |
192 | |
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193 | static coro_cctx *cctx_current; /* the currently running cctx */ |
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194 | |
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195 | /*****************************************************************************/ |
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196 | |
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197 | static MGVTBL coro_state_vtbl; |
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198 | |
222 | enum { |
199 | enum |
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200 | { |
223 | CF_RUNNING = 0x0001, /* coroutine is running */ |
201 | CF_RUNNING = 0x0001, /* coroutine is running */ |
224 | CF_READY = 0x0002, /* coroutine is ready */ |
202 | CF_READY = 0x0002, /* coroutine is ready */ |
225 | CF_NEW = 0x0004, /* has never been switched to */ |
203 | CF_NEW = 0x0004, /* has never been switched to */ |
226 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
204 | CF_ZOMBIE = 0x0008, /* coroutine data has been freed */ |
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205 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
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206 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
227 | }; |
207 | }; |
228 | |
208 | |
229 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
209 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
230 | typedef struct { |
210 | typedef struct |
231 | SV *defsv; |
211 | { |
232 | AV *defav; |
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233 | SV *errsv; |
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234 | SV *irsgv; |
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235 | #define VAR(name,type) type name; |
212 | #define VARx(name,expr,type) type name; |
236 | # include "state.h" |
213 | # include "state.h" |
237 | #undef VAR |
214 | #undef VARx |
238 | } perl_slots; |
215 | } perl_slots; |
239 | |
216 | |
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217 | /* how many context stack entries do we need for perl_slots */ |
240 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
218 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
241 | |
219 | |
242 | /* this is a structure representing a perl-level coroutine */ |
220 | /* this is a structure representing a perl-level coroutine */ |
243 | struct coro { |
221 | struct coro |
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222 | { |
244 | /* the c coroutine allocated to this perl coroutine, if any */ |
223 | /* the C coroutine allocated to this perl coroutine, if any */ |
245 | coro_cctx *cctx; |
224 | coro_cctx *cctx; |
246 | |
225 | |
247 | /* process data */ |
226 | /* ready queue */ |
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227 | struct coro *next_ready; |
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228 | |
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229 | /* state data */ |
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230 | struct CoroSLF slf_frame; /* saved slf frame */ |
248 | AV *mainstack; |
231 | AV *mainstack; |
249 | perl_slots *slot; /* basically the saved sp */ |
232 | perl_slots *slot; /* basically the saved sp */ |
250 | |
233 | |
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234 | CV *startcv; /* the CV to execute */ |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
235 | AV *args; /* data associated with this coroutine (initial args) */ |
252 | int refcnt; /* coroutines are refcounted, yes */ |
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253 | int flags; /* CF_ flags */ |
236 | int flags; /* CF_ flags */ |
254 | HV *hv; /* the perl hash associated with this coro, if any */ |
237 | HV *hv; /* the perl hash associated with this coro, if any */ |
255 | |
238 | |
256 | /* statistics */ |
239 | /* statistics */ |
257 | int usecount; /* number of transfers to this coro */ |
240 | int usecount; /* number of transfers to this coro */ |
258 | |
241 | |
259 | /* coro process data */ |
242 | /* coro process data */ |
260 | int prio; |
243 | int prio; |
261 | SV *throw; /* exception to be thrown */ |
244 | SV *except; /* exception to be thrown */ |
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245 | SV *rouse_cb; /* last rouse callback */ |
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246 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
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247 | AV *status; /* the exit status list */ |
262 | |
248 | |
263 | /* async_pool */ |
249 | /* async_pool */ |
264 | SV *saved_deffh; |
250 | SV *saved_deffh; |
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251 | SV *invoke_cb; |
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252 | AV *invoke_av; |
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253 | |
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254 | /* on_enter/on_leave */ |
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255 | AV *on_enter; |
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256 | AV *on_leave; |
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257 | |
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258 | /* swap_sv */ |
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259 | AV *swap_sv; |
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260 | |
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261 | /* times */ |
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262 | coro_ts t_cpu, t_real; |
265 | |
263 | |
266 | /* linked list */ |
264 | /* linked list */ |
267 | struct coro *next, *prev; |
265 | struct coro *next, *prev; |
268 | }; |
266 | }; |
269 | |
267 | |
270 | typedef struct coro *Coro__State; |
268 | typedef struct coro *Coro__State; |
271 | typedef struct coro *Coro__State_or_hashref; |
269 | typedef struct coro *Coro__State_or_hashref; |
272 | |
270 | |
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271 | /* the following variables are effectively part of the perl context */ |
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272 | /* and get copied between struct coro and these variables */ |
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273 | /* the main reason we don't support windows process emulation */ |
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274 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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275 | |
273 | /** Coro ********************************************************************/ |
276 | /** Coro ********************************************************************/ |
274 | |
277 | |
275 | #define PRIO_MAX 3 |
278 | #define CORO_PRIO_MAX 3 |
276 | #define PRIO_HIGH 1 |
279 | #define CORO_PRIO_HIGH 1 |
277 | #define PRIO_NORMAL 0 |
280 | #define CORO_PRIO_NORMAL 0 |
278 | #define PRIO_LOW -1 |
281 | #define CORO_PRIO_LOW -1 |
279 | #define PRIO_IDLE -3 |
282 | #define CORO_PRIO_IDLE -3 |
280 | #define PRIO_MIN -4 |
283 | #define CORO_PRIO_MIN -4 |
281 | |
284 | |
282 | /* for Coro.pm */ |
285 | /* for Coro.pm */ |
283 | static SV *coro_current; |
286 | static SV *coro_current; |
284 | static SV *coro_readyhook; |
287 | static SV *coro_readyhook; |
285 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
288 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
286 | static int coro_nready; |
289 | static CV *cv_coro_run; |
287 | static struct coro *coro_first; |
290 | static struct coro *coro_first; |
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291 | #define coro_nready coroapi.nready |
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292 | |
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293 | /** JIT *********************************************************************/ |
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294 | |
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295 | #if CORO_JIT |
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296 | /* APPLE doesn't have HAVE_MMAP though */ |
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297 | #define CORO_JIT_UNIXY (__linux || __FreeBSD__ || __OpenBSD__ || __NetBSD__ || __solaris || __APPLE__) |
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298 | #ifndef CORO_JIT_TYPE |
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299 | #if __x86_64 && CORO_JIT_UNIXY |
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300 | #define CORO_JIT_TYPE "amd64-unix" |
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301 | #elif __i386 && CORO_JIT_UNIXY |
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302 | #define CORO_JIT_TYPE "x86-unix" |
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303 | #endif |
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304 | #endif |
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305 | #endif |
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306 | |
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307 | #if !defined(CORO_JIT_TYPE) || !HAVE_MMAP |
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308 | #undef CORO_JIT |
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309 | #endif |
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310 | |
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311 | #if CORO_JIT |
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312 | typedef void (*load_save_perl_slots_type)(perl_slots *); |
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313 | static load_save_perl_slots_type load_perl_slots, save_perl_slots; |
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314 | #endif |
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315 | |
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316 | /** Coro::Select ************************************************************/ |
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317 | |
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318 | static OP *(*coro_old_pp_sselect) (pTHX); |
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319 | static SV *coro_select_select; |
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320 | |
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321 | /* horrible hack, but if it works... */ |
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322 | static OP * |
|
|
323 | coro_pp_sselect (pTHX) |
|
|
324 | { |
|
|
325 | dSP; |
|
|
326 | PUSHMARK (SP - 4); /* fake argument list */ |
|
|
327 | XPUSHs (coro_select_select); |
|
|
328 | PUTBACK; |
|
|
329 | |
|
|
330 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
|
|
331 | PL_op->op_flags |= OPf_STACKED; |
|
|
332 | PL_op->op_private = 0; |
|
|
333 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
|
|
334 | } |
|
|
335 | |
|
|
336 | /** time stuff **************************************************************/ |
|
|
337 | |
|
|
338 | #ifdef HAS_GETTIMEOFDAY |
|
|
339 | |
|
|
340 | ECB_INLINE void |
|
|
341 | coro_u2time (pTHX_ UV ret[2]) |
|
|
342 | { |
|
|
343 | struct timeval tv; |
|
|
344 | gettimeofday (&tv, 0); |
|
|
345 | |
|
|
346 | ret [0] = tv.tv_sec; |
|
|
347 | ret [1] = tv.tv_usec; |
|
|
348 | } |
|
|
349 | |
|
|
350 | ECB_INLINE double |
|
|
351 | coro_nvtime (void) |
|
|
352 | { |
|
|
353 | struct timeval tv; |
|
|
354 | gettimeofday (&tv, 0); |
|
|
355 | |
|
|
356 | return tv.tv_sec + tv.tv_usec * 1e-6; |
|
|
357 | } |
|
|
358 | |
|
|
359 | ECB_INLINE void |
|
|
360 | time_init (pTHX) |
|
|
361 | { |
|
|
362 | nvtime = coro_nvtime; |
|
|
363 | u2time = coro_u2time; |
|
|
364 | } |
|
|
365 | |
|
|
366 | #else |
|
|
367 | |
|
|
368 | ECB_INLINE void |
|
|
369 | time_init (pTHX) |
|
|
370 | { |
|
|
371 | SV **svp; |
|
|
372 | |
|
|
373 | require_pv ("Time/HiRes.pm"); |
|
|
374 | |
|
|
375 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
376 | |
|
|
377 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
|
|
378 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
|
|
379 | |
|
|
380 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
381 | |
|
|
382 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
|
383 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
384 | } |
|
|
385 | |
|
|
386 | #endif |
288 | |
387 | |
289 | /** lowlevel stuff **********************************************************/ |
388 | /** lowlevel stuff **********************************************************/ |
290 | |
389 | |
291 | static SV * |
390 | static SV * ecb_noinline |
292 | coro_get_sv (pTHX_ const char *name, int create) |
391 | coro_get_sv (pTHX_ const char *name, int create) |
293 | { |
392 | { |
294 | #if PERL_VERSION_ATLEAST (5,10,0) |
393 | #if PERL_VERSION_ATLEAST (5,10,0) |
295 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
394 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
296 | get_sv (name, create); |
395 | get_sv (name, create); |
297 | #endif |
396 | #endif |
298 | return get_sv (name, create); |
397 | return get_sv (name, create); |
299 | } |
398 | } |
300 | |
399 | |
301 | static AV * |
400 | static AV * ecb_noinline |
302 | coro_get_av (pTHX_ const char *name, int create) |
401 | coro_get_av (pTHX_ const char *name, int create) |
303 | { |
402 | { |
304 | #if PERL_VERSION_ATLEAST (5,10,0) |
403 | #if PERL_VERSION_ATLEAST (5,10,0) |
305 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
404 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
306 | get_av (name, create); |
405 | get_av (name, create); |
307 | #endif |
406 | #endif |
308 | return get_av (name, create); |
407 | return get_av (name, create); |
309 | } |
408 | } |
310 | |
409 | |
311 | static HV * |
410 | static HV * ecb_noinline |
312 | coro_get_hv (pTHX_ const char *name, int create) |
411 | coro_get_hv (pTHX_ const char *name, int create) |
313 | { |
412 | { |
314 | #if PERL_VERSION_ATLEAST (5,10,0) |
413 | #if PERL_VERSION_ATLEAST (5,10,0) |
315 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
414 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
316 | get_hv (name, create); |
415 | get_hv (name, create); |
317 | #endif |
416 | #endif |
318 | return get_hv (name, create); |
417 | return get_hv (name, create); |
319 | } |
418 | } |
320 | |
419 | |
321 | static AV * |
420 | ECB_INLINE void |
|
|
421 | coro_times_update (void) |
|
|
422 | { |
|
|
423 | #ifdef coro_clock_gettime |
|
|
424 | struct timespec ts; |
|
|
425 | |
|
|
426 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
427 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
|
|
428 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
|
|
429 | |
|
|
430 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
431 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
|
|
432 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
|
|
433 | #else |
|
|
434 | dTHX; |
|
|
435 | UV tv[2]; |
|
|
436 | |
|
|
437 | u2time (aTHX_ tv); |
|
|
438 | time_real [0] = tv [0]; |
|
|
439 | time_real [1] = tv [1] * 1000; |
|
|
440 | #endif |
|
|
441 | } |
|
|
442 | |
|
|
443 | ECB_INLINE void |
|
|
444 | coro_times_add (struct coro *c) |
|
|
445 | { |
|
|
446 | c->t_real [1] += time_real [1]; |
|
|
447 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
|
448 | c->t_real [0] += time_real [0]; |
|
|
449 | |
|
|
450 | c->t_cpu [1] += time_cpu [1]; |
|
|
451 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
|
452 | c->t_cpu [0] += time_cpu [0]; |
|
|
453 | } |
|
|
454 | |
|
|
455 | ECB_INLINE void |
|
|
456 | coro_times_sub (struct coro *c) |
|
|
457 | { |
|
|
458 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
|
459 | c->t_real [1] -= time_real [1]; |
|
|
460 | c->t_real [0] -= time_real [0]; |
|
|
461 | |
|
|
462 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
|
463 | c->t_cpu [1] -= time_cpu [1]; |
|
|
464 | c->t_cpu [0] -= time_cpu [0]; |
|
|
465 | } |
|
|
466 | |
|
|
467 | /*****************************************************************************/ |
|
|
468 | /* magic glue */ |
|
|
469 | |
|
|
470 | #define CORO_MAGIC_type_cv 26 |
|
|
471 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
472 | |
|
|
473 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
474 | (ecb_expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
475 | ? SvMAGIC (sv) \ |
|
|
476 | : mg_find (sv, type)) |
|
|
477 | |
|
|
478 | #define CORO_MAGIC(sv, type) \ |
|
|
479 | (ecb_expect_true (SvMAGIC (sv)) \ |
|
|
480 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
481 | : 0) |
|
|
482 | |
|
|
483 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
484 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
485 | |
|
|
486 | ECB_INLINE MAGIC * |
|
|
487 | SvSTATEhv_p (pTHX_ SV *coro) |
|
|
488 | { |
|
|
489 | MAGIC *mg; |
|
|
490 | |
|
|
491 | if (ecb_expect_true ( |
|
|
492 | SvTYPE (coro) == SVt_PVHV |
|
|
493 | && (mg = CORO_MAGIC_state (coro)) |
|
|
494 | && mg->mg_virtual == &coro_state_vtbl |
|
|
495 | )) |
|
|
496 | return mg; |
|
|
497 | |
|
|
498 | return 0; |
|
|
499 | } |
|
|
500 | |
|
|
501 | ECB_INLINE struct coro * |
|
|
502 | SvSTATE_ (pTHX_ SV *coro) |
|
|
503 | { |
|
|
504 | MAGIC *mg; |
|
|
505 | |
|
|
506 | if (SvROK (coro)) |
|
|
507 | coro = SvRV (coro); |
|
|
508 | |
|
|
509 | mg = SvSTATEhv_p (aTHX_ coro); |
|
|
510 | if (!mg) |
|
|
511 | croak ("Coro::State object required"); |
|
|
512 | |
|
|
513 | return (struct coro *)mg->mg_ptr; |
|
|
514 | } |
|
|
515 | |
|
|
516 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
517 | |
|
|
518 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
519 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
520 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
521 | |
|
|
522 | /*****************************************************************************/ |
|
|
523 | /* padlist management and caching */ |
|
|
524 | |
|
|
525 | ECB_INLINE AV * |
322 | coro_clone_padlist (pTHX_ CV *cv) |
526 | coro_derive_padlist (pTHX_ CV *cv) |
323 | { |
527 | { |
324 | AV *padlist = CvPADLIST (cv); |
528 | AV *padlist = CvPADLIST (cv); |
325 | AV *newpadlist, *newpad; |
529 | AV *newpadlist, *newpad; |
326 | |
530 | |
327 | newpadlist = newAV (); |
531 | newpadlist = newAV (); |
… | |
… | |
332 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
536 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
333 | #endif |
537 | #endif |
334 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
538 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
335 | --AvFILLp (padlist); |
539 | --AvFILLp (padlist); |
336 | |
540 | |
337 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
541 | av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); |
338 | av_store (newpadlist, 1, (SV *)newpad); |
542 | av_store (newpadlist, 1, (SV *)newpad); |
339 | |
543 | |
340 | return newpadlist; |
544 | return newpadlist; |
341 | } |
545 | } |
342 | |
546 | |
343 | static void |
547 | ECB_INLINE void |
344 | free_padlist (pTHX_ AV *padlist) |
548 | free_padlist (pTHX_ AV *padlist) |
345 | { |
549 | { |
346 | /* may be during global destruction */ |
550 | /* may be during global destruction */ |
347 | if (SvREFCNT (padlist)) |
551 | if (!IN_DESTRUCT) |
348 | { |
552 | { |
349 | I32 i = AvFILLp (padlist); |
553 | I32 i = AvFILLp (padlist); |
350 | while (i >= 0) |
554 | |
|
|
555 | while (i > 0) /* special-case index 0 */ |
351 | { |
556 | { |
352 | SV **svp = av_fetch (padlist, i--, FALSE); |
557 | /* we try to be extra-careful here */ |
353 | if (svp) |
558 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
354 | { |
559 | I32 j = AvFILLp (av); |
355 | SV *sv; |
560 | |
356 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
561 | while (j >= 0) |
|
|
562 | SvREFCNT_dec (AvARRAY (av)[j--]); |
|
|
563 | |
|
|
564 | AvFILLp (av) = -1; |
357 | SvREFCNT_dec (sv); |
565 | SvREFCNT_dec (av); |
358 | |
|
|
359 | SvREFCNT_dec (*svp); |
|
|
360 | } |
|
|
361 | } |
566 | } |
362 | |
567 | |
|
|
568 | SvREFCNT_dec (AvARRAY (padlist)[0]); |
|
|
569 | |
|
|
570 | AvFILLp (padlist) = -1; |
363 | SvREFCNT_dec ((SV*)padlist); |
571 | SvREFCNT_dec ((SV*)padlist); |
364 | } |
572 | } |
365 | } |
573 | } |
366 | |
574 | |
367 | static int |
575 | static int |
368 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
576 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
369 | { |
577 | { |
370 | AV *padlist; |
578 | AV *padlist; |
371 | AV *av = (AV *)mg->mg_obj; |
579 | AV *av = (AV *)mg->mg_obj; |
|
|
580 | |
|
|
581 | /* perl manages to free our internal AV and _then_ call us */ |
|
|
582 | if (IN_DESTRUCT) |
|
|
583 | return 0; |
372 | |
584 | |
373 | /* casting is fun. */ |
585 | /* casting is fun. */ |
374 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
586 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
375 | free_padlist (aTHX_ padlist); |
587 | free_padlist (aTHX_ padlist); |
376 | |
588 | |
377 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
589 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
378 | |
590 | |
379 | return 0; |
591 | return 0; |
380 | } |
592 | } |
381 | |
|
|
382 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
383 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
384 | |
593 | |
385 | static MGVTBL coro_cv_vtbl = { |
594 | static MGVTBL coro_cv_vtbl = { |
386 | 0, 0, 0, 0, |
595 | 0, 0, 0, 0, |
387 | coro_cv_free |
596 | coro_cv_free |
388 | }; |
597 | }; |
389 | |
598 | |
390 | #define CORO_MAGIC(sv, type) \ |
|
|
391 | SvMAGIC (sv) \ |
|
|
392 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
393 | ? SvMAGIC (sv) \ |
|
|
394 | : mg_find (sv, type) \ |
|
|
395 | : 0 |
|
|
396 | |
|
|
397 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
398 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
399 | |
|
|
400 | static struct coro * |
|
|
401 | SvSTATE_ (pTHX_ SV *coro) |
|
|
402 | { |
|
|
403 | HV *stash; |
|
|
404 | MAGIC *mg; |
|
|
405 | |
|
|
406 | if (SvROK (coro)) |
|
|
407 | coro = SvRV (coro); |
|
|
408 | |
|
|
409 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
410 | croak ("Coro::State object required"); |
|
|
411 | |
|
|
412 | stash = SvSTASH (coro); |
|
|
413 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
414 | { |
|
|
415 | /* very slow, but rare, check */ |
|
|
416 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
417 | croak ("Coro::State object required"); |
|
|
418 | } |
|
|
419 | |
|
|
420 | mg = CORO_MAGIC_state (coro); |
|
|
421 | return (struct coro *)mg->mg_ptr; |
|
|
422 | } |
|
|
423 | |
|
|
424 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
425 | |
|
|
426 | /* the next two functions merely cache the padlists */ |
599 | /* the next two functions merely cache the padlists */ |
427 | static void |
600 | ECB_INLINE void |
428 | get_padlist (pTHX_ CV *cv) |
601 | get_padlist (pTHX_ CV *cv) |
429 | { |
602 | { |
430 | MAGIC *mg = CORO_MAGIC_cv (cv); |
603 | MAGIC *mg = CORO_MAGIC_cv (cv); |
431 | AV *av; |
604 | AV *av; |
432 | |
605 | |
433 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
606 | if (ecb_expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
434 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
607 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
435 | else |
608 | else |
436 | { |
609 | { |
437 | #if CORO_PREFER_PERL_FUNCTIONS |
610 | #if CORO_PREFER_PERL_FUNCTIONS |
438 | /* this is probably cleaner? but also slower! */ |
611 | /* this is probably cleaner? but also slower! */ |
439 | /* in practise, it seems to be less stable */ |
612 | /* in practise, it seems to be less stable */ |
440 | CV *cp = Perl_cv_clone (cv); |
613 | CV *cp = Perl_cv_clone (aTHX_ cv); |
441 | CvPADLIST (cv) = CvPADLIST (cp); |
614 | CvPADLIST (cv) = CvPADLIST (cp); |
442 | CvPADLIST (cp) = 0; |
615 | CvPADLIST (cp) = 0; |
443 | SvREFCNT_dec (cp); |
616 | SvREFCNT_dec (cp); |
444 | #else |
617 | #else |
445 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
618 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
446 | #endif |
619 | #endif |
447 | } |
620 | } |
448 | } |
621 | } |
449 | |
622 | |
450 | static void |
623 | ECB_INLINE void |
451 | put_padlist (pTHX_ CV *cv) |
624 | put_padlist (pTHX_ CV *cv) |
452 | { |
625 | { |
453 | MAGIC *mg = CORO_MAGIC_cv (cv); |
626 | MAGIC *mg = CORO_MAGIC_cv (cv); |
454 | AV *av; |
627 | AV *av; |
455 | |
628 | |
456 | if (expect_false (!mg)) |
629 | if (ecb_expect_false (!mg)) |
457 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
630 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
458 | |
631 | |
459 | av = (AV *)mg->mg_obj; |
632 | av = (AV *)mg->mg_obj; |
460 | |
633 | |
461 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
634 | if (ecb_expect_false (AvFILLp (av) >= AvMAX (av))) |
462 | av_extend (av, AvMAX (av) + 1); |
635 | av_extend (av, AvFILLp (av) + 1); |
463 | |
636 | |
464 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
637 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
465 | } |
638 | } |
466 | |
639 | |
467 | /** load & save, init *******************************************************/ |
640 | /** load & save, init *******************************************************/ |
|
|
641 | |
|
|
642 | /* swap sv heads, at least logically */ |
|
|
643 | static void |
|
|
644 | swap_svs (pTHX_ Coro__State c) |
|
|
645 | { |
|
|
646 | int i; |
|
|
647 | |
|
|
648 | for (i = 0; i <= AvFILLp (c->swap_sv); ) |
|
|
649 | { |
|
|
650 | SV *a = AvARRAY (c->swap_sv)[i++]; |
|
|
651 | SV *b = AvARRAY (c->swap_sv)[i++]; |
|
|
652 | |
|
|
653 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
654 | SV tmp; |
|
|
655 | |
|
|
656 | /* swap sv_any */ |
|
|
657 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
658 | |
|
|
659 | /* swap sv_flags */ |
|
|
660 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
661 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
662 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
663 | |
|
|
664 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
665 | /* perl 5.10 complicates this _quite_ a bit, but it also is |
|
|
666 | * much faster, so no quarrels here. alternatively, we could |
|
|
667 | * sv_upgrade to avoid this. |
|
|
668 | */ |
|
|
669 | { |
|
|
670 | /* swap sv_u */ |
|
|
671 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
672 | |
|
|
673 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
674 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
675 | */ |
|
|
676 | #define svany_in_head(type) \ |
|
|
677 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
|
|
678 | |
|
|
679 | if (svany_in_head (SvTYPE (a))) |
|
|
680 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
681 | |
|
|
682 | if (svany_in_head (SvTYPE (b))) |
|
|
683 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
684 | } |
|
|
685 | #endif |
|
|
686 | } |
|
|
687 | } |
|
|
688 | |
|
|
689 | #define SWAP_SVS(coro) \ |
|
|
690 | if (ecb_expect_false ((coro)->swap_sv)) \ |
|
|
691 | swap_svs (aTHX_ (coro)) |
|
|
692 | |
|
|
693 | static void |
|
|
694 | on_enterleave_call (pTHX_ SV *cb); |
468 | |
695 | |
469 | static void |
696 | static void |
470 | load_perl (pTHX_ Coro__State c) |
697 | load_perl (pTHX_ Coro__State c) |
471 | { |
698 | { |
472 | perl_slots *slot = c->slot; |
699 | perl_slots *slot = c->slot; |
473 | c->slot = 0; |
700 | c->slot = 0; |
474 | |
701 | |
475 | PL_mainstack = c->mainstack; |
702 | PL_mainstack = c->mainstack; |
476 | |
703 | |
477 | GvSV (PL_defgv) = slot->defsv; |
704 | #if CORO_JIT |
478 | GvAV (PL_defgv) = slot->defav; |
705 | load_perl_slots (slot); |
479 | GvSV (PL_errgv) = slot->errsv; |
706 | #else |
480 | GvSV (irsgv) = slot->irsgv; |
|
|
481 | |
|
|
482 | #define VAR(name,type) PL_ ## name = slot->name; |
707 | #define VARx(name,expr,type) expr = slot->name; |
483 | # include "state.h" |
708 | # include "state.h" |
484 | #undef VAR |
709 | #undef VARx |
|
|
710 | #endif |
485 | |
711 | |
486 | { |
712 | { |
487 | dSP; |
713 | dSP; |
488 | |
714 | |
489 | CV *cv; |
715 | CV *cv; |
490 | |
716 | |
491 | /* now do the ugly restore mess */ |
717 | /* now do the ugly restore mess */ |
492 | while (expect_true (cv = (CV *)POPs)) |
718 | while (ecb_expect_true (cv = (CV *)POPs)) |
493 | { |
719 | { |
494 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
720 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
495 | CvDEPTH (cv) = PTR2IV (POPs); |
721 | CvDEPTH (cv) = PTR2IV (POPs); |
496 | CvPADLIST (cv) = (AV *)POPs; |
722 | CvPADLIST (cv) = (AV *)POPs; |
497 | } |
723 | } |
498 | |
724 | |
499 | PUTBACK; |
725 | PUTBACK; |
500 | } |
726 | } |
|
|
727 | |
|
|
728 | slf_frame = c->slf_frame; |
|
|
729 | CORO_THROW = c->except; |
|
|
730 | |
|
|
731 | if (ecb_expect_false (enable_times)) |
|
|
732 | { |
|
|
733 | if (ecb_expect_false (!times_valid)) |
|
|
734 | coro_times_update (); |
|
|
735 | |
|
|
736 | coro_times_sub (c); |
|
|
737 | } |
|
|
738 | |
|
|
739 | if (ecb_expect_false (c->on_enter)) |
|
|
740 | { |
|
|
741 | int i; |
|
|
742 | |
|
|
743 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
744 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
745 | } |
|
|
746 | |
|
|
747 | SWAP_SVS (c); |
501 | } |
748 | } |
502 | |
749 | |
503 | static void |
750 | static void |
504 | save_perl (pTHX_ Coro__State c) |
751 | save_perl (pTHX_ Coro__State c) |
505 | { |
752 | { |
|
|
753 | SWAP_SVS (c); |
|
|
754 | |
|
|
755 | if (ecb_expect_false (c->on_leave)) |
|
|
756 | { |
|
|
757 | int i; |
|
|
758 | |
|
|
759 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
760 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
761 | } |
|
|
762 | |
|
|
763 | times_valid = 0; |
|
|
764 | |
|
|
765 | if (ecb_expect_false (enable_times)) |
|
|
766 | { |
|
|
767 | coro_times_update (); times_valid = 1; |
|
|
768 | coro_times_add (c); |
|
|
769 | } |
|
|
770 | |
|
|
771 | c->except = CORO_THROW; |
|
|
772 | c->slf_frame = slf_frame; |
|
|
773 | |
506 | { |
774 | { |
507 | dSP; |
775 | dSP; |
508 | I32 cxix = cxstack_ix; |
776 | I32 cxix = cxstack_ix; |
509 | PERL_CONTEXT *ccstk = cxstack; |
777 | PERL_CONTEXT *ccstk = cxstack; |
510 | PERL_SI *top_si = PL_curstackinfo; |
778 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
516 | |
784 | |
517 | XPUSHs (Nullsv); |
785 | XPUSHs (Nullsv); |
518 | /* this loop was inspired by pp_caller */ |
786 | /* this loop was inspired by pp_caller */ |
519 | for (;;) |
787 | for (;;) |
520 | { |
788 | { |
521 | while (expect_true (cxix >= 0)) |
789 | while (ecb_expect_true (cxix >= 0)) |
522 | { |
790 | { |
523 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
791 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
524 | |
792 | |
525 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
793 | if (ecb_expect_true (CxTYPE (cx) == CXt_SUB) || ecb_expect_false (CxTYPE (cx) == CXt_FORMAT)) |
526 | { |
794 | { |
527 | CV *cv = cx->blk_sub.cv; |
795 | CV *cv = cx->blk_sub.cv; |
528 | |
796 | |
529 | if (expect_true (CvDEPTH (cv))) |
797 | if (ecb_expect_true (CvDEPTH (cv))) |
530 | { |
798 | { |
531 | EXTEND (SP, 3); |
799 | EXTEND (SP, 3); |
532 | PUSHs ((SV *)CvPADLIST (cv)); |
800 | PUSHs ((SV *)CvPADLIST (cv)); |
533 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
801 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
534 | PUSHs ((SV *)cv); |
802 | PUSHs ((SV *)cv); |
… | |
… | |
537 | get_padlist (aTHX_ cv); |
805 | get_padlist (aTHX_ cv); |
538 | } |
806 | } |
539 | } |
807 | } |
540 | } |
808 | } |
541 | |
809 | |
542 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
810 | if (ecb_expect_true (top_si->si_type == PERLSI_MAIN)) |
543 | break; |
811 | break; |
544 | |
812 | |
545 | top_si = top_si->si_prev; |
813 | top_si = top_si->si_prev; |
546 | ccstk = top_si->si_cxstack; |
814 | ccstk = top_si->si_cxstack; |
547 | cxix = top_si->si_cxix; |
815 | cxix = top_si->si_cxix; |
… | |
… | |
549 | |
817 | |
550 | PUTBACK; |
818 | PUTBACK; |
551 | } |
819 | } |
552 | |
820 | |
553 | /* allocate some space on the context stack for our purposes */ |
821 | /* allocate some space on the context stack for our purposes */ |
554 | /* we manually unroll here, as usually 2 slots is enough */ |
822 | if (ecb_expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max)) |
555 | if (SLOT_COUNT >= 1) CXINC; |
|
|
556 | if (SLOT_COUNT >= 2) CXINC; |
|
|
557 | if (SLOT_COUNT >= 3) CXINC; |
|
|
558 | { |
823 | { |
559 | int i; |
824 | unsigned int i; |
|
|
825 | |
560 | for (i = 3; i < SLOT_COUNT; ++i) |
826 | for (i = 0; i < SLOT_COUNT; ++i) |
561 | CXINC; |
827 | CXINC; |
562 | } |
828 | |
563 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
829 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
830 | } |
564 | |
831 | |
565 | c->mainstack = PL_mainstack; |
832 | c->mainstack = PL_mainstack; |
566 | |
833 | |
567 | { |
834 | { |
568 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
835 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
569 | |
836 | |
570 | slot->defav = GvAV (PL_defgv); |
837 | #if CORO_JIT |
571 | slot->defsv = DEFSV; |
838 | save_perl_slots (slot); |
572 | slot->errsv = ERRSV; |
839 | #else |
573 | slot->irsgv = GvSV (irsgv); |
|
|
574 | |
|
|
575 | #define VAR(name,type) slot->name = PL_ ## name; |
840 | #define VARx(name,expr,type) slot->name = expr; |
576 | # include "state.h" |
841 | # include "state.h" |
577 | #undef VAR |
842 | #undef VARx |
|
|
843 | #endif |
578 | } |
844 | } |
579 | } |
845 | } |
580 | |
846 | |
581 | /* |
847 | /* |
582 | * allocate various perl stacks. This is an exact copy |
848 | * allocate various perl stacks. This is almost an exact copy |
583 | * of perl.c:init_stacks, except that it uses less memory |
849 | * of perl.c:init_stacks, except that it uses less memory |
584 | * on the (sometimes correct) assumption that coroutines do |
850 | * on the (sometimes correct) assumption that coroutines do |
585 | * not usually need a lot of stackspace. |
851 | * not usually need a lot of stackspace. |
586 | */ |
852 | */ |
587 | #if CORO_PREFER_PERL_FUNCTIONS |
853 | #if CORO_PREFER_PERL_FUNCTIONS |
588 | # define coro_init_stacks init_stacks |
854 | # define coro_init_stacks(thx) init_stacks () |
589 | #else |
855 | #else |
590 | static void |
856 | static void |
591 | coro_init_stacks (pTHX) |
857 | coro_init_stacks (pTHX) |
592 | { |
858 | { |
593 | PL_curstackinfo = new_stackinfo(32, 8); |
859 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
594 | PL_curstackinfo->si_type = PERLSI_MAIN; |
860 | PL_curstackinfo->si_type = PERLSI_MAIN; |
595 | PL_curstack = PL_curstackinfo->si_stack; |
861 | PL_curstack = PL_curstackinfo->si_stack; |
596 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
862 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
597 | |
863 | |
598 | PL_stack_base = AvARRAY(PL_curstack); |
864 | PL_stack_base = AvARRAY(PL_curstack); |
… | |
… | |
656 | #if !PERL_VERSION_ATLEAST (5,10,0) |
922 | #if !PERL_VERSION_ATLEAST (5,10,0) |
657 | Safefree (PL_retstack); |
923 | Safefree (PL_retstack); |
658 | #endif |
924 | #endif |
659 | } |
925 | } |
660 | |
926 | |
|
|
927 | #define CORO_RSS \ |
|
|
928 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
929 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
930 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
931 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
932 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
933 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
934 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
935 | |
661 | static size_t |
936 | static size_t |
662 | coro_rss (pTHX_ struct coro *coro) |
937 | coro_rss (pTHX_ struct coro *coro) |
663 | { |
938 | { |
664 | size_t rss = sizeof (*coro); |
939 | size_t rss = sizeof (*coro); |
665 | |
940 | |
666 | if (coro->mainstack) |
941 | if (coro->mainstack) |
667 | { |
942 | { |
668 | perl_slots tmp_slot; |
|
|
669 | perl_slots *slot; |
|
|
670 | |
|
|
671 | if (coro->flags & CF_RUNNING) |
943 | if (coro->flags & CF_RUNNING) |
672 | { |
944 | { |
673 | slot = &tmp_slot; |
945 | #define SYM(sym) PL_ ## sym |
674 | |
946 | CORO_RSS; |
675 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
676 | # include "state.h" |
|
|
677 | #undef VAR |
947 | #undef SYM |
678 | } |
948 | } |
679 | else |
949 | else |
680 | slot = coro->slot; |
|
|
681 | |
|
|
682 | if (slot) |
|
|
683 | { |
950 | { |
684 | rss += sizeof (slot->curstackinfo); |
951 | #define SYM(sym) coro->slot->sym |
685 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
952 | CORO_RSS; |
686 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
953 | #undef SYM |
687 | rss += slot->tmps_max * sizeof (SV *); |
|
|
688 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
689 | rss += slot->scopestack_max * sizeof (I32); |
|
|
690 | rss += slot->savestack_max * sizeof (ANY); |
|
|
691 | |
|
|
692 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
693 | rss += slot->retstack_max * sizeof (OP *); |
|
|
694 | #endif |
|
|
695 | } |
954 | } |
696 | } |
955 | } |
697 | |
956 | |
698 | return rss; |
957 | return rss; |
699 | } |
958 | } |
… | |
… | |
712 | #endif |
971 | #endif |
713 | |
972 | |
714 | /* |
973 | /* |
715 | * This overrides the default magic get method of %SIG elements. |
974 | * This overrides the default magic get method of %SIG elements. |
716 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
975 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
717 | * and instead of tryign to save and restore the hash elements, we just provide |
976 | * and instead of trying to save and restore the hash elements (extremely slow), |
718 | * readback here. |
977 | * we just provide our own readback here. |
719 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
720 | * not expecting this to actually change the hook. This is a potential problem |
|
|
721 | * when a schedule happens then, but we ignore this. |
|
|
722 | */ |
978 | */ |
723 | static int |
979 | static int ecb_cold |
724 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
980 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
725 | { |
981 | { |
726 | const char *s = MgPV_nolen_const (mg); |
982 | const char *s = MgPV_nolen_const (mg); |
727 | |
983 | |
728 | if (*s == '_') |
984 | if (*s == '_') |
… | |
… | |
740 | } |
996 | } |
741 | |
997 | |
742 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
998 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
743 | } |
999 | } |
744 | |
1000 | |
745 | static int |
1001 | static int ecb_cold |
746 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
1002 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
747 | { |
1003 | { |
748 | const char *s = MgPV_nolen_const (mg); |
1004 | const char *s = MgPV_nolen_const (mg); |
749 | |
1005 | |
750 | if (*s == '_') |
1006 | if (*s == '_') |
… | |
… | |
764 | } |
1020 | } |
765 | |
1021 | |
766 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
1022 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
767 | } |
1023 | } |
768 | |
1024 | |
769 | static int |
1025 | static int ecb_cold |
770 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
1026 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
771 | { |
1027 | { |
772 | const char *s = MgPV_nolen_const (mg); |
1028 | const char *s = MgPV_nolen_const (mg); |
773 | |
1029 | |
774 | if (*s == '_') |
1030 | if (*s == '_') |
… | |
… | |
779 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
1035 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
780 | |
1036 | |
781 | if (svp) |
1037 | if (svp) |
782 | { |
1038 | { |
783 | SV *old = *svp; |
1039 | SV *old = *svp; |
784 | *svp = newSVsv (sv); |
1040 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
785 | SvREFCNT_dec (old); |
1041 | SvREFCNT_dec (old); |
786 | return 0; |
1042 | return 0; |
787 | } |
1043 | } |
788 | } |
1044 | } |
789 | |
1045 | |
790 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
1046 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
791 | } |
1047 | } |
792 | |
1048 | |
793 | static void |
1049 | static void |
|
|
1050 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
1051 | { |
|
|
1052 | /* kind of mega-hacky, but works */ |
|
|
1053 | ta->next = ta->prev = (struct coro *)ta; |
|
|
1054 | } |
|
|
1055 | |
|
|
1056 | static int |
|
|
1057 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
1058 | { |
|
|
1059 | return 0; |
|
|
1060 | } |
|
|
1061 | |
|
|
1062 | static int |
|
|
1063 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
1064 | { |
|
|
1065 | return 1; |
|
|
1066 | } |
|
|
1067 | |
|
|
1068 | static UNOP init_perl_op; |
|
|
1069 | |
|
|
1070 | ecb_noinline static void /* noinline to keep it out of the transfer fast path */ |
794 | coro_setup (pTHX_ struct coro *coro) |
1071 | init_perl (pTHX_ struct coro *coro) |
795 | { |
1072 | { |
796 | /* |
1073 | /* |
797 | * emulate part of the perl startup here. |
1074 | * emulate part of the perl startup here. |
798 | */ |
1075 | */ |
799 | coro_init_stacks (aTHX); |
1076 | coro_init_stacks (aTHX); |
800 | |
1077 | |
801 | PL_runops = RUNOPS_DEFAULT; |
1078 | PL_runops = RUNOPS_DEFAULT; |
802 | PL_curcop = &PL_compiling; |
1079 | PL_curcop = &PL_compiling; |
803 | PL_in_eval = EVAL_NULL; |
1080 | PL_in_eval = EVAL_NULL; |
804 | PL_comppad = 0; |
1081 | PL_comppad = 0; |
|
|
1082 | PL_comppad_name = 0; |
|
|
1083 | PL_comppad_name_fill = 0; |
|
|
1084 | PL_comppad_name_floor = 0; |
805 | PL_curpm = 0; |
1085 | PL_curpm = 0; |
806 | PL_curpad = 0; |
1086 | PL_curpad = 0; |
807 | PL_localizing = 0; |
1087 | PL_localizing = 0; |
808 | PL_dirty = 0; |
|
|
809 | PL_restartop = 0; |
1088 | PL_restartop = 0; |
810 | #if PERL_VERSION_ATLEAST (5,10,0) |
1089 | #if PERL_VERSION_ATLEAST (5,10,0) |
811 | PL_parser = 0; |
1090 | PL_parser = 0; |
812 | #endif |
1091 | #endif |
|
|
1092 | PL_hints = 0; |
813 | |
1093 | |
814 | /* recreate the die/warn hooks */ |
1094 | /* recreate the die/warn hooks */ |
815 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
1095 | PL_diehook = SvREFCNT_inc (rv_diehook); |
816 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
1096 | PL_warnhook = SvREFCNT_inc (rv_warnhook); |
817 | |
1097 | |
818 | GvSV (PL_defgv) = newSV (0); |
1098 | GvSV (PL_defgv) = newSV (0); |
819 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1099 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
820 | GvSV (PL_errgv) = newSV (0); |
1100 | GvSV (PL_errgv) = newSV (0); |
821 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1101 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1102 | GvHV (PL_hintgv) = 0; |
822 | PL_rs = newSVsv (GvSV (irsgv)); |
1103 | PL_rs = newSVsv (GvSV (irsgv)); |
823 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
1104 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
824 | |
1105 | |
825 | { |
1106 | { |
826 | dSP; |
1107 | dSP; |
827 | LOGOP myop; |
1108 | UNOP myop; |
828 | |
1109 | |
829 | Zero (&myop, 1, LOGOP); |
1110 | Zero (&myop, 1, UNOP); |
830 | myop.op_next = Nullop; |
1111 | myop.op_next = Nullop; |
|
|
1112 | myop.op_type = OP_ENTERSUB; |
831 | myop.op_flags = OPf_WANT_VOID; |
1113 | myop.op_flags = OPf_WANT_VOID; |
832 | |
1114 | |
833 | PUSHMARK (SP); |
1115 | PUSHMARK (SP); |
834 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
1116 | PUSHs ((SV *)coro->startcv); |
835 | PUTBACK; |
1117 | PUTBACK; |
836 | PL_op = (OP *)&myop; |
1118 | PL_op = (OP *)&myop; |
837 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1119 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
838 | SPAGAIN; |
|
|
839 | } |
1120 | } |
840 | |
1121 | |
841 | /* this newly created coroutine might be run on an existing cctx which most |
1122 | /* this newly created coroutine might be run on an existing cctx which most |
842 | * likely was suspended in set_stacklevel, called from entersub. |
1123 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
843 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
844 | * so we ENTER here for symmetry |
|
|
845 | */ |
1124 | */ |
846 | ENTER; |
1125 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
847 | } |
1126 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1127 | slf_frame.destroy = 0; |
848 | |
1128 | |
|
|
1129 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1130 | init_perl_op.op_next = PL_op; |
|
|
1131 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1132 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1133 | /* no flags etc. required, as an init function won't be called */ |
|
|
1134 | |
|
|
1135 | PL_op = (OP *)&init_perl_op; |
|
|
1136 | |
|
|
1137 | /* copy throw, in case it was set before init_perl */ |
|
|
1138 | CORO_THROW = coro->except; |
|
|
1139 | |
|
|
1140 | SWAP_SVS (coro); |
|
|
1141 | |
|
|
1142 | if (ecb_expect_false (enable_times)) |
|
|
1143 | { |
|
|
1144 | coro_times_update (); |
|
|
1145 | coro_times_sub (coro); |
|
|
1146 | } |
|
|
1147 | } |
|
|
1148 | |
849 | static void |
1149 | static void |
850 | coro_destruct (pTHX_ struct coro *coro) |
1150 | coro_unwind_stacks (pTHX) |
851 | { |
1151 | { |
852 | if (!IN_DESTRUCT) |
1152 | if (!IN_DESTRUCT) |
853 | { |
1153 | { |
854 | /* restore all saved variables and stuff */ |
1154 | /* restore all saved variables and stuff */ |
855 | LEAVE_SCOPE (0); |
1155 | LEAVE_SCOPE (0); |
… | |
… | |
863 | POPSTACK_TO (PL_mainstack); |
1163 | POPSTACK_TO (PL_mainstack); |
864 | |
1164 | |
865 | /* unwind main stack */ |
1165 | /* unwind main stack */ |
866 | dounwind (-1); |
1166 | dounwind (-1); |
867 | } |
1167 | } |
|
|
1168 | } |
868 | |
1169 | |
869 | SvREFCNT_dec (GvSV (PL_defgv)); |
1170 | static void |
870 | SvREFCNT_dec (GvAV (PL_defgv)); |
1171 | destroy_perl (pTHX_ struct coro *coro) |
871 | SvREFCNT_dec (GvSV (PL_errgv)); |
1172 | { |
872 | SvREFCNT_dec (PL_defoutgv); |
1173 | SV *svf [9]; |
873 | SvREFCNT_dec (PL_rs); |
|
|
874 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
875 | |
1174 | |
876 | SvREFCNT_dec (PL_diehook); |
|
|
877 | SvREFCNT_dec (PL_warnhook); |
|
|
878 | |
1175 | { |
|
|
1176 | SV *old_current = SvRV (coro_current); |
|
|
1177 | struct coro *current = SvSTATE (old_current); |
|
|
1178 | |
|
|
1179 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1180 | |
|
|
1181 | save_perl (aTHX_ current); |
|
|
1182 | |
|
|
1183 | /* this will cause transfer_check to croak on block*/ |
|
|
1184 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1185 | |
|
|
1186 | load_perl (aTHX_ coro); |
|
|
1187 | |
|
|
1188 | coro_unwind_stacks (aTHX); |
|
|
1189 | |
|
|
1190 | /* restore swapped sv's */ |
|
|
1191 | SWAP_SVS (coro); |
|
|
1192 | |
|
|
1193 | coro_destruct_stacks (aTHX); |
|
|
1194 | |
|
|
1195 | /* now save some sv's to be free'd later */ |
|
|
1196 | svf [0] = GvSV (PL_defgv); |
|
|
1197 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1198 | svf [2] = GvSV (PL_errgv); |
|
|
1199 | svf [3] = (SV *)PL_defoutgv; |
|
|
1200 | svf [4] = PL_rs; |
|
|
1201 | svf [5] = GvSV (irsgv); |
|
|
1202 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1203 | svf [7] = PL_diehook; |
|
|
1204 | svf [8] = PL_warnhook; |
|
|
1205 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1206 | |
|
|
1207 | SvRV_set (coro_current, old_current); |
|
|
1208 | |
|
|
1209 | load_perl (aTHX_ current); |
|
|
1210 | } |
|
|
1211 | |
|
|
1212 | { |
|
|
1213 | unsigned int i; |
|
|
1214 | |
|
|
1215 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1216 | SvREFCNT_dec (svf [i]); |
|
|
1217 | |
879 | SvREFCNT_dec (coro->saved_deffh); |
1218 | SvREFCNT_dec (coro->saved_deffh); |
880 | SvREFCNT_dec (coro->throw); |
1219 | SvREFCNT_dec (coro->rouse_cb); |
881 | |
1220 | SvREFCNT_dec (coro->invoke_cb); |
882 | coro_destruct_stacks (aTHX); |
1221 | SvREFCNT_dec (coro->invoke_av); |
|
|
1222 | } |
883 | } |
1223 | } |
884 | |
1224 | |
885 | static void |
1225 | ECB_INLINE void |
886 | free_coro_mortal (pTHX) |
1226 | free_coro_mortal (pTHX) |
887 | { |
1227 | { |
888 | if (expect_true (coro_mortal)) |
1228 | if (ecb_expect_true (coro_mortal)) |
889 | { |
1229 | { |
890 | SvREFCNT_dec (coro_mortal); |
1230 | SvREFCNT_dec ((SV *)coro_mortal); |
891 | coro_mortal = 0; |
1231 | coro_mortal = 0; |
892 | } |
1232 | } |
893 | } |
1233 | } |
894 | |
1234 | |
895 | static int |
1235 | static int |
896 | runops_trace (pTHX) |
1236 | runops_trace (pTHX) |
897 | { |
1237 | { |
898 | COP *oldcop = 0; |
1238 | COP *oldcop = 0; |
899 | int oldcxix = -2; |
1239 | int oldcxix = -2; |
900 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
901 | coro_cctx *cctx = coro->cctx; |
|
|
902 | |
1240 | |
903 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1241 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
904 | { |
1242 | { |
905 | PERL_ASYNC_CHECK (); |
1243 | PERL_ASYNC_CHECK (); |
906 | |
1244 | |
907 | if (cctx->flags & CC_TRACE_ALL) |
1245 | if (cctx_current->flags & CC_TRACE_ALL) |
908 | { |
1246 | { |
909 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1247 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
910 | { |
1248 | { |
911 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1249 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
912 | SV **bot, **top; |
1250 | SV **bot, **top; |
913 | AV *av = newAV (); /* return values */ |
1251 | AV *av = newAV (); /* return values */ |
914 | SV **cb; |
1252 | SV **cb; |
… | |
… | |
951 | |
1289 | |
952 | if (PL_curcop != &PL_compiling) |
1290 | if (PL_curcop != &PL_compiling) |
953 | { |
1291 | { |
954 | SV **cb; |
1292 | SV **cb; |
955 | |
1293 | |
956 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1294 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
957 | { |
1295 | { |
958 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1296 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
959 | |
1297 | |
960 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1298 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
961 | { |
1299 | { |
962 | runops_proc_t old_runops = PL_runops; |
|
|
963 | dSP; |
1300 | dSP; |
964 | GV *gv = CvGV (cx->blk_sub.cv); |
1301 | GV *gv = CvGV (cx->blk_sub.cv); |
965 | SV *fullname = sv_2mortal (newSV (0)); |
1302 | SV *fullname = sv_2mortal (newSV (0)); |
966 | |
1303 | |
967 | if (isGV (gv)) |
1304 | if (isGV (gv)) |
… | |
… | |
972 | SAVETMPS; |
1309 | SAVETMPS; |
973 | EXTEND (SP, 3); |
1310 | EXTEND (SP, 3); |
974 | PUSHMARK (SP); |
1311 | PUSHMARK (SP); |
975 | PUSHs (&PL_sv_yes); |
1312 | PUSHs (&PL_sv_yes); |
976 | PUSHs (fullname); |
1313 | PUSHs (fullname); |
977 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1314 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
978 | PUTBACK; |
1315 | PUTBACK; |
979 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1316 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
980 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1317 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
981 | SPAGAIN; |
1318 | SPAGAIN; |
982 | FREETMPS; |
1319 | FREETMPS; |
… | |
… | |
985 | } |
1322 | } |
986 | |
1323 | |
987 | oldcxix = cxstack_ix; |
1324 | oldcxix = cxstack_ix; |
988 | } |
1325 | } |
989 | |
1326 | |
990 | if (cctx->flags & CC_TRACE_LINE) |
1327 | if (cctx_current->flags & CC_TRACE_LINE) |
991 | { |
1328 | { |
992 | dSP; |
1329 | dSP; |
993 | |
1330 | |
994 | PL_runops = RUNOPS_DEFAULT; |
1331 | PL_runops = RUNOPS_DEFAULT; |
995 | ENTER; |
1332 | ENTER; |
… | |
… | |
1014 | |
1351 | |
1015 | TAINT_NOT; |
1352 | TAINT_NOT; |
1016 | return 0; |
1353 | return 0; |
1017 | } |
1354 | } |
1018 | |
1355 | |
1019 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1356 | static struct CoroSLF cctx_ssl_frame; |
1020 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
1021 | /* during execution of a perl program */ |
|
|
1022 | static void NOINLINE |
|
|
1023 | cctx_prepare (pTHX_ coro_cctx *cctx) |
|
|
1024 | { |
|
|
1025 | dSP; |
|
|
1026 | LOGOP myop; |
|
|
1027 | |
1357 | |
|
|
1358 | static void |
|
|
1359 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1360 | { |
|
|
1361 | ta->prev = 0; |
|
|
1362 | } |
|
|
1363 | |
|
|
1364 | static int |
|
|
1365 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1366 | { |
|
|
1367 | *frame = cctx_ssl_frame; |
|
|
1368 | |
|
|
1369 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1370 | } |
|
|
1371 | |
|
|
1372 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
|
|
1373 | static void ecb_noinline |
|
|
1374 | cctx_prepare (pTHX) |
|
|
1375 | { |
1028 | PL_top_env = &PL_start_env; |
1376 | PL_top_env = &PL_start_env; |
1029 | |
1377 | |
1030 | if (cctx->flags & CC_TRACE) |
1378 | if (cctx_current->flags & CC_TRACE) |
1031 | PL_runops = runops_trace; |
1379 | PL_runops = runops_trace; |
1032 | |
1380 | |
1033 | Zero (&myop, 1, LOGOP); |
1381 | /* we already must be executing an SLF op, there is no other valid way |
1034 | myop.op_next = PL_op; |
1382 | * that can lead to creation of a new cctx */ |
1035 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1383 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1384 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1036 | |
1385 | |
1037 | PUSHMARK (SP); |
1386 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1038 | EXTEND (SP, 2); |
1387 | cctx_ssl_frame = slf_frame; |
1039 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1388 | |
1040 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1389 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1041 | PUTBACK; |
1390 | slf_frame.check = slf_check_set_stacklevel; |
1042 | PL_op = (OP *)&myop; |
1391 | } |
1043 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1392 | |
1044 | SPAGAIN; |
1393 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1394 | ECB_INLINE void |
|
|
1395 | transfer_tail (pTHX) |
|
|
1396 | { |
|
|
1397 | free_coro_mortal (aTHX); |
1045 | } |
1398 | } |
1046 | |
1399 | |
1047 | /* |
1400 | /* |
1048 | * this is a _very_ stripped down perl interpreter ;) |
1401 | * this is a _very_ stripped down perl interpreter ;) |
1049 | */ |
1402 | */ |
1050 | static void |
1403 | static void |
1051 | cctx_run (void *arg) |
1404 | cctx_run (void *arg) |
1052 | { |
1405 | { |
|
|
1406 | #ifdef USE_ITHREADS |
|
|
1407 | # if CORO_PTHREAD |
|
|
1408 | PERL_SET_CONTEXT (coro_thx); |
|
|
1409 | # endif |
|
|
1410 | #endif |
|
|
1411 | { |
1053 | dTHX; |
1412 | dTHX; |
1054 | |
1413 | |
1055 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
1414 | /* normally we would need to skip the entersub here */ |
1056 | UNLOCK; |
1415 | /* not doing so will re-execute it, which is exactly what we want */ |
1057 | |
|
|
1058 | /* we now skip the entersub that lead to transfer() */ |
|
|
1059 | PL_op = PL_op->op_next; |
1416 | /* PL_nop = PL_nop->op_next */ |
1060 | |
1417 | |
1061 | /* inject a fake subroutine call to cctx_init */ |
1418 | /* inject a fake subroutine call to cctx_init */ |
1062 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1419 | cctx_prepare (aTHX); |
1063 | |
1420 | |
|
|
1421 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1422 | transfer_tail (aTHX); |
|
|
1423 | |
1064 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1424 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1065 | PL_restartop = PL_op; |
1425 | PL_restartop = PL_op; |
1066 | perl_run (PL_curinterp); |
1426 | perl_run (PL_curinterp); |
1067 | |
|
|
1068 | /* |
1427 | /* |
|
|
1428 | * Unfortunately, there is no way to get at the return values of the |
|
|
1429 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1430 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1431 | */ |
|
|
1432 | |
|
|
1433 | /* |
1069 | * If perl-run returns we assume exit() was being called or the coro |
1434 | * If perl-run returns we assume exit() was being called or the coro |
1070 | * fell off the end, which seems to be the only valid (non-bug) |
1435 | * fell off the end, which seems to be the only valid (non-bug) |
1071 | * reason for perl_run to return. We try to exit by jumping to the |
1436 | * reason for perl_run to return. We try to exit by jumping to the |
1072 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1437 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1073 | * coroutine as Coro has no such concept |
1438 | * coroutine as Coro has no such concept. |
|
|
1439 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1440 | * that backend are too broken to do it in a standards-compliant way. |
1074 | */ |
1441 | */ |
1075 | PL_top_env = main_top_env; |
1442 | PL_top_env = main_top_env; |
1076 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1443 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1444 | } |
1077 | } |
1445 | } |
1078 | |
1446 | |
1079 | static coro_cctx * |
1447 | static coro_cctx * |
1080 | cctx_new () |
1448 | cctx_new (void) |
1081 | { |
1449 | { |
1082 | coro_cctx *cctx; |
1450 | coro_cctx *cctx; |
|
|
1451 | |
|
|
1452 | ++cctx_count; |
|
|
1453 | New (0, cctx, 1, coro_cctx); |
|
|
1454 | |
|
|
1455 | cctx->gen = cctx_gen; |
|
|
1456 | cctx->flags = 0; |
|
|
1457 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1458 | |
|
|
1459 | return cctx; |
|
|
1460 | } |
|
|
1461 | |
|
|
1462 | /* create a new cctx only suitable as source */ |
|
|
1463 | static coro_cctx * |
|
|
1464 | cctx_new_empty (void) |
|
|
1465 | { |
|
|
1466 | coro_cctx *cctx = cctx_new (); |
|
|
1467 | |
|
|
1468 | cctx->sptr = 0; |
|
|
1469 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1470 | |
|
|
1471 | return cctx; |
|
|
1472 | } |
|
|
1473 | |
|
|
1474 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1475 | static coro_cctx * |
|
|
1476 | cctx_new_run (void) |
|
|
1477 | { |
|
|
1478 | coro_cctx *cctx = cctx_new (); |
1083 | void *stack_start; |
1479 | void *stack_start; |
1084 | size_t stack_size; |
1480 | size_t stack_size; |
1085 | |
|
|
1086 | ++cctx_count; |
|
|
1087 | Newz (0, cctx, 1, coro_cctx); |
|
|
1088 | |
|
|
1089 | cctx->gen = cctx_gen; |
|
|
1090 | |
1481 | |
1091 | #if HAVE_MMAP |
1482 | #if HAVE_MMAP |
1092 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1483 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1093 | /* mmap supposedly does allocate-on-write for us */ |
1484 | /* mmap supposedly does allocate-on-write for us */ |
1094 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1485 | cctx->sptr = mmap (0, cctx->ssize, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_ANONYMOUS, 0, 0); |
1095 | |
1486 | |
1096 | if (cctx->sptr != (void *)-1) |
1487 | if (cctx->sptr != (void *)-1) |
1097 | { |
1488 | { |
1098 | # if CORO_STACKGUARD |
1489 | #if CORO_STACKGUARD |
1099 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1490 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1100 | # endif |
1491 | #endif |
1101 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1492 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
1102 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1493 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1103 | cctx->flags |= CC_MAPPED; |
1494 | cctx->flags |= CC_MAPPED; |
1104 | } |
1495 | } |
1105 | else |
1496 | else |
1106 | #endif |
1497 | #endif |
1107 | { |
1498 | { |
1108 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1499 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1109 | New (0, cctx->sptr, cctx_stacksize, long); |
1500 | New (0, cctx->sptr, cctx_stacksize, long); |
1110 | |
1501 | |
1111 | if (!cctx->sptr) |
1502 | if (!cctx->sptr) |
1112 | { |
1503 | { |
1113 | perror ("FATAL: unable to allocate stack for coroutine"); |
1504 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1114 | _exit (EXIT_FAILURE); |
1505 | _exit (EXIT_FAILURE); |
1115 | } |
1506 | } |
1116 | |
1507 | |
1117 | stack_start = cctx->sptr; |
1508 | stack_start = cctx->sptr; |
1118 | stack_size = cctx->ssize; |
1509 | stack_size = cctx->ssize; |
1119 | } |
1510 | } |
1120 | |
1511 | |
1121 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1512 | #if CORO_USE_VALGRIND |
|
|
1513 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1514 | #endif |
|
|
1515 | |
1122 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1516 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1123 | |
1517 | |
1124 | return cctx; |
1518 | return cctx; |
1125 | } |
1519 | } |
1126 | |
1520 | |
… | |
… | |
1128 | cctx_destroy (coro_cctx *cctx) |
1522 | cctx_destroy (coro_cctx *cctx) |
1129 | { |
1523 | { |
1130 | if (!cctx) |
1524 | if (!cctx) |
1131 | return; |
1525 | return; |
1132 | |
1526 | |
|
|
1527 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
|
|
1528 | |
1133 | --cctx_count; |
1529 | --cctx_count; |
1134 | coro_destroy (&cctx->cctx); |
1530 | coro_destroy (&cctx->cctx); |
1135 | |
1531 | |
1136 | /* coro_transfer creates new, empty cctx's */ |
1532 | /* coro_transfer creates new, empty cctx's */ |
1137 | if (cctx->sptr) |
1533 | if (cctx->sptr) |
1138 | { |
1534 | { |
1139 | #if CORO_USE_VALGRIND |
1535 | #if CORO_USE_VALGRIND |
1140 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1536 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1141 | #endif |
1537 | #endif |
1142 | |
1538 | |
1143 | #if HAVE_MMAP |
1539 | #if HAVE_MMAP |
1144 | if (cctx->flags & CC_MAPPED) |
1540 | if (cctx->flags & CC_MAPPED) |
1145 | munmap (cctx->sptr, cctx->ssize); |
1541 | munmap (cctx->sptr, cctx->ssize); |
1146 | else |
1542 | else |
… | |
… | |
1155 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1551 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1156 | |
1552 | |
1157 | static coro_cctx * |
1553 | static coro_cctx * |
1158 | cctx_get (pTHX) |
1554 | cctx_get (pTHX) |
1159 | { |
1555 | { |
1160 | while (expect_true (cctx_first)) |
1556 | while (ecb_expect_true (cctx_first)) |
1161 | { |
1557 | { |
1162 | coro_cctx *cctx = cctx_first; |
1558 | coro_cctx *cctx = cctx_first; |
1163 | cctx_first = cctx->next; |
1559 | cctx_first = cctx->next; |
1164 | --cctx_idle; |
1560 | --cctx_idle; |
1165 | |
1561 | |
1166 | if (expect_true (!CCTX_EXPIRED (cctx))) |
1562 | if (ecb_expect_true (!CCTX_EXPIRED (cctx))) |
1167 | return cctx; |
1563 | return cctx; |
1168 | |
1564 | |
1169 | cctx_destroy (cctx); |
1565 | cctx_destroy (cctx); |
1170 | } |
1566 | } |
1171 | |
1567 | |
1172 | return cctx_new (); |
1568 | return cctx_new_run (); |
1173 | } |
1569 | } |
1174 | |
1570 | |
1175 | static void |
1571 | static void |
1176 | cctx_put (coro_cctx *cctx) |
1572 | cctx_put (coro_cctx *cctx) |
1177 | { |
1573 | { |
1178 | assert (("cctx_put called on non-initialised cctx", cctx->sptr)); |
1574 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1179 | |
1575 | |
1180 | /* free another cctx if overlimit */ |
1576 | /* free another cctx if overlimit */ |
1181 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1577 | if (ecb_expect_false (cctx_idle >= cctx_max_idle)) |
1182 | { |
1578 | { |
1183 | coro_cctx *first = cctx_first; |
1579 | coro_cctx *first = cctx_first; |
1184 | cctx_first = first->next; |
1580 | cctx_first = first->next; |
1185 | --cctx_idle; |
1581 | --cctx_idle; |
1186 | |
1582 | |
… | |
… | |
1195 | /** coroutine switching *****************************************************/ |
1591 | /** coroutine switching *****************************************************/ |
1196 | |
1592 | |
1197 | static void |
1593 | static void |
1198 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1594 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1199 | { |
1595 | { |
|
|
1596 | /* TODO: throwing up here is considered harmful */ |
|
|
1597 | |
1200 | if (expect_true (prev != next)) |
1598 | if (ecb_expect_true (prev != next)) |
1201 | { |
1599 | { |
1202 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1600 | if (ecb_expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1203 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1601 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1204 | |
1602 | |
1205 | if (expect_false (next->flags & CF_RUNNING)) |
1603 | if (ecb_expect_false (next->flags & (CF_RUNNING | CF_ZOMBIE | CF_SUSPENDED))) |
1206 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1207 | |
|
|
1208 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1209 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1604 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1210 | |
1605 | |
1211 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1606 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1212 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1607 | if (ecb_expect_false (PL_lex_state != LEX_NOTPARSING)) |
1213 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1608 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1214 | #endif |
1609 | #endif |
1215 | } |
1610 | } |
1216 | } |
1611 | } |
1217 | |
1612 | |
1218 | /* always use the TRANSFER macro */ |
1613 | /* always use the TRANSFER macro */ |
1219 | static void NOINLINE |
1614 | static void ecb_noinline /* noinline so we have a fixed stackframe */ |
1220 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1615 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1221 | { |
1616 | { |
1222 | dSTACKLEVEL; |
1617 | dSTACKLEVEL; |
1223 | |
1618 | |
1224 | /* sometimes transfer is only called to set idle_sp */ |
1619 | /* sometimes transfer is only called to set idle_sp */ |
1225 | if (expect_false (!next)) |
1620 | if (ecb_expect_false (!prev)) |
1226 | { |
1621 | { |
1227 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1622 | cctx_current->idle_sp = STACKLEVEL; |
1228 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1623 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1229 | } |
1624 | } |
1230 | else if (expect_true (prev != next)) |
1625 | else if (ecb_expect_true (prev != next)) |
1231 | { |
1626 | { |
1232 | static volatile int has_throw; |
|
|
1233 | coro_cctx *prev__cctx; |
1627 | coro_cctx *cctx_prev; |
1234 | |
1628 | |
1235 | if (expect_false (prev->flags & CF_NEW)) |
1629 | if (ecb_expect_false (prev->flags & CF_NEW)) |
1236 | { |
1630 | { |
1237 | /* create a new empty/source context */ |
1631 | /* create a new empty/source context */ |
1238 | ++cctx_count; |
|
|
1239 | New (0, prev->cctx, 1, coro_cctx); |
|
|
1240 | prev->cctx->sptr = 0; |
|
|
1241 | coro_create (&prev->cctx->cctx, 0, 0, 0, 0); |
|
|
1242 | |
|
|
1243 | prev->flags &= ~CF_NEW; |
1632 | prev->flags &= ~CF_NEW; |
1244 | prev->flags |= CF_RUNNING; |
1633 | prev->flags |= CF_RUNNING; |
1245 | } |
1634 | } |
1246 | |
1635 | |
1247 | prev->flags &= ~CF_RUNNING; |
1636 | prev->flags &= ~CF_RUNNING; |
1248 | next->flags |= CF_RUNNING; |
1637 | next->flags |= CF_RUNNING; |
1249 | |
1638 | |
1250 | LOCK; |
|
|
1251 | |
|
|
1252 | /* first get rid of the old state */ |
1639 | /* first get rid of the old state */ |
1253 | save_perl (aTHX_ prev); |
1640 | save_perl (aTHX_ prev); |
1254 | |
1641 | |
1255 | if (expect_false (next->flags & CF_NEW)) |
1642 | if (ecb_expect_false (next->flags & CF_NEW)) |
1256 | { |
1643 | { |
1257 | /* need to start coroutine */ |
1644 | /* need to start coroutine */ |
1258 | next->flags &= ~CF_NEW; |
1645 | next->flags &= ~CF_NEW; |
1259 | /* setup coroutine call */ |
1646 | /* setup coroutine call */ |
1260 | coro_setup (aTHX_ next); |
1647 | init_perl (aTHX_ next); |
1261 | } |
1648 | } |
1262 | else |
1649 | else |
1263 | load_perl (aTHX_ next); |
1650 | load_perl (aTHX_ next); |
1264 | |
1651 | |
1265 | prev__cctx = prev->cctx; |
|
|
1266 | |
|
|
1267 | /* possibly "free" the cctx */ |
1652 | /* possibly untie and reuse the cctx */ |
1268 | if (expect_true ( |
1653 | if (ecb_expect_true ( |
1269 | prev__cctx->idle_sp == STACKLEVEL |
1654 | cctx_current->idle_sp == STACKLEVEL |
1270 | && !(prev__cctx->flags & CC_TRACE) |
1655 | && !(cctx_current->flags & CC_TRACE) |
1271 | && !force_cctx |
1656 | && !force_cctx |
1272 | )) |
1657 | )) |
1273 | { |
1658 | { |
1274 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1659 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1275 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1660 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1276 | |
1661 | |
1277 | prev->cctx = 0; |
|
|
1278 | |
|
|
1279 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1662 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1280 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1663 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1281 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1664 | if (ecb_expect_false (CCTX_EXPIRED (cctx_current))) |
1282 | if (!next->cctx) |
1665 | if (ecb_expect_true (!next->cctx)) |
1283 | next->cctx = cctx_get (aTHX); |
1666 | next->cctx = cctx_get (aTHX); |
1284 | |
1667 | |
1285 | cctx_put (prev__cctx); |
1668 | cctx_put (cctx_current); |
1286 | } |
1669 | } |
|
|
1670 | else |
|
|
1671 | prev->cctx = cctx_current; |
1287 | |
1672 | |
1288 | ++next->usecount; |
1673 | ++next->usecount; |
1289 | |
1674 | |
1290 | if (expect_true (!next->cctx)) |
1675 | cctx_prev = cctx_current; |
1291 | next->cctx = cctx_get (aTHX); |
1676 | cctx_current = ecb_expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1292 | |
1677 | |
1293 | has_throw = !!next->throw; |
1678 | next->cctx = 0; |
1294 | |
1679 | |
1295 | if (expect_false (prev__cctx != next->cctx)) |
1680 | if (ecb_expect_false (cctx_prev != cctx_current)) |
1296 | { |
1681 | { |
1297 | prev__cctx->top_env = PL_top_env; |
1682 | cctx_prev->top_env = PL_top_env; |
1298 | PL_top_env = next->cctx->top_env; |
1683 | PL_top_env = cctx_current->top_env; |
1299 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1684 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1300 | } |
1685 | } |
1301 | |
1686 | |
1302 | free_coro_mortal (aTHX); |
1687 | transfer_tail (aTHX); |
1303 | UNLOCK; |
|
|
1304 | |
|
|
1305 | if (expect_false (has_throw)) |
|
|
1306 | { |
|
|
1307 | struct coro *coro = SvSTATE (coro_current); |
|
|
1308 | |
|
|
1309 | if (coro->throw) |
|
|
1310 | { |
|
|
1311 | SV *exception = coro->throw; |
|
|
1312 | coro->throw = 0; |
|
|
1313 | sv_setsv (ERRSV, exception); |
|
|
1314 | croak (0); |
|
|
1315 | } |
|
|
1316 | } |
|
|
1317 | } |
1688 | } |
1318 | } |
1689 | } |
1319 | |
|
|
1320 | struct transfer_args |
|
|
1321 | { |
|
|
1322 | struct coro *prev, *next; |
|
|
1323 | }; |
|
|
1324 | |
1690 | |
1325 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1691 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1326 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1692 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1327 | |
1693 | |
1328 | /** high level stuff ********************************************************/ |
1694 | /** high level stuff ********************************************************/ |
1329 | |
1695 | |
|
|
1696 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1697 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
1330 | static int |
1698 | static void |
|
|
1699 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1700 | |
|
|
1701 | static void |
1331 | coro_state_destroy (pTHX_ struct coro *coro) |
1702 | coro_state_destroy (pTHX_ struct coro *coro) |
1332 | { |
1703 | { |
1333 | if (coro->flags & CF_DESTROYED) |
1704 | if (coro->flags & CF_ZOMBIE) |
1334 | return 0; |
1705 | return; |
1335 | |
1706 | |
|
|
1707 | slf_destroy (aTHX_ coro); |
|
|
1708 | |
1336 | coro->flags |= CF_DESTROYED; |
1709 | coro->flags |= CF_ZOMBIE; |
1337 | |
1710 | |
1338 | if (coro->flags & CF_READY) |
1711 | if (coro->flags & CF_READY) |
1339 | { |
1712 | { |
1340 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1713 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1341 | /* alternative: look through all ready queues and remove the coro */ |
1714 | /* alternative: look through all ready queues and remove the coro */ |
1342 | LOCK; |
|
|
1343 | --coro_nready; |
1715 | --coro_nready; |
1344 | UNLOCK; |
|
|
1345 | } |
1716 | } |
1346 | else |
1717 | else |
1347 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1718 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1348 | |
|
|
1349 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
1350 | { |
|
|
1351 | struct coro temp; |
|
|
1352 | |
|
|
1353 | if (coro->flags & CF_RUNNING) |
|
|
1354 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1355 | |
|
|
1356 | save_perl (aTHX_ &temp); |
|
|
1357 | load_perl (aTHX_ coro); |
|
|
1358 | |
|
|
1359 | coro_destruct (aTHX_ coro); |
|
|
1360 | |
|
|
1361 | load_perl (aTHX_ &temp); |
|
|
1362 | |
|
|
1363 | coro->slot = 0; |
|
|
1364 | } |
|
|
1365 | |
|
|
1366 | cctx_destroy (coro->cctx); |
|
|
1367 | SvREFCNT_dec (coro->args); |
|
|
1368 | |
1719 | |
1369 | if (coro->next) coro->next->prev = coro->prev; |
1720 | if (coro->next) coro->next->prev = coro->prev; |
1370 | if (coro->prev) coro->prev->next = coro->next; |
1721 | if (coro->prev) coro->prev->next = coro->next; |
1371 | if (coro == coro_first) coro_first = coro->next; |
1722 | if (coro == coro_first) coro_first = coro->next; |
1372 | |
1723 | |
1373 | return 1; |
1724 | if (coro->mainstack |
|
|
1725 | && coro->mainstack != main_mainstack |
|
|
1726 | && coro->slot |
|
|
1727 | && !PL_dirty) |
|
|
1728 | destroy_perl (aTHX_ coro); |
|
|
1729 | |
|
|
1730 | cctx_destroy (coro->cctx); |
|
|
1731 | SvREFCNT_dec (coro->startcv); |
|
|
1732 | SvREFCNT_dec (coro->args); |
|
|
1733 | SvREFCNT_dec (coro->swap_sv); |
|
|
1734 | SvREFCNT_dec (CORO_THROW); |
|
|
1735 | |
|
|
1736 | coro_call_on_destroy (aTHX_ coro); |
|
|
1737 | |
|
|
1738 | /* more destruction mayhem in coro_state_free */ |
1374 | } |
1739 | } |
1375 | |
1740 | |
1376 | static int |
1741 | static int |
1377 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1742 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1378 | { |
1743 | { |
1379 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1744 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1380 | mg->mg_ptr = 0; |
1745 | mg->mg_ptr = 0; |
1381 | |
1746 | |
1382 | coro->hv = 0; |
|
|
1383 | |
|
|
1384 | if (--coro->refcnt < 0) |
|
|
1385 | { |
|
|
1386 | coro_state_destroy (aTHX_ coro); |
1747 | coro_state_destroy (aTHX_ coro); |
|
|
1748 | SvREFCNT_dec (coro->on_destroy); |
|
|
1749 | SvREFCNT_dec (coro->status); |
|
|
1750 | |
1387 | Safefree (coro); |
1751 | Safefree (coro); |
1388 | } |
|
|
1389 | |
1752 | |
1390 | return 0; |
1753 | return 0; |
1391 | } |
1754 | } |
1392 | |
1755 | |
1393 | static int |
1756 | static int ecb_cold |
1394 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1757 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1395 | { |
1758 | { |
1396 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1759 | /* called when perl clones the current process the slow way (windows process emulation) */ |
1397 | |
1760 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
1398 | ++coro->refcnt; |
1761 | mg->mg_ptr = 0; |
|
|
1762 | mg->mg_virtual = 0; |
1399 | |
1763 | |
1400 | return 0; |
1764 | return 0; |
1401 | } |
1765 | } |
1402 | |
1766 | |
1403 | static MGVTBL coro_state_vtbl = { |
1767 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
1410 | # define MGf_DUP 0 |
1774 | # define MGf_DUP 0 |
1411 | #endif |
1775 | #endif |
1412 | }; |
1776 | }; |
1413 | |
1777 | |
1414 | static void |
1778 | static void |
1415 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1779 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1416 | { |
1780 | { |
1417 | ta->prev = SvSTATE (prev_sv); |
1781 | ta->prev = SvSTATE (prev_sv); |
1418 | ta->next = SvSTATE (next_sv); |
1782 | ta->next = SvSTATE (next_sv); |
1419 | TRANSFER_CHECK (*ta); |
1783 | TRANSFER_CHECK (*ta); |
1420 | } |
1784 | } |
1421 | |
1785 | |
1422 | static void |
1786 | static void |
1423 | api_transfer (SV *prev_sv, SV *next_sv) |
1787 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1424 | { |
1788 | { |
1425 | dTHX; |
|
|
1426 | struct transfer_args ta; |
1789 | struct coro_transfer_args ta; |
1427 | |
1790 | |
1428 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1791 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1429 | TRANSFER (ta, 1); |
1792 | TRANSFER (ta, 1); |
1430 | } |
1793 | } |
1431 | |
1794 | |
1432 | /** Coro ********************************************************************/ |
1795 | /** Coro ********************************************************************/ |
1433 | |
1796 | |
1434 | static void |
1797 | ECB_INLINE void |
1435 | coro_enq (pTHX_ SV *coro_sv) |
1798 | coro_enq (pTHX_ struct coro *coro) |
1436 | { |
1799 | { |
1437 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1800 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1438 | } |
|
|
1439 | |
1801 | |
1440 | static SV * |
1802 | SvREFCNT_inc_NN (coro->hv); |
|
|
1803 | |
|
|
1804 | coro->next_ready = 0; |
|
|
1805 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1806 | ready [1] = coro; |
|
|
1807 | } |
|
|
1808 | |
|
|
1809 | ECB_INLINE struct coro * |
1441 | coro_deq (pTHX) |
1810 | coro_deq (pTHX) |
1442 | { |
1811 | { |
1443 | int prio; |
1812 | int prio; |
1444 | |
1813 | |
1445 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1814 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
1446 | if (AvFILLp (coro_ready [prio]) >= 0) |
1815 | { |
1447 | return av_shift (coro_ready [prio]); |
1816 | struct coro **ready = coro_ready [prio]; |
|
|
1817 | |
|
|
1818 | if (ready [0]) |
|
|
1819 | { |
|
|
1820 | struct coro *coro = ready [0]; |
|
|
1821 | ready [0] = coro->next_ready; |
|
|
1822 | return coro; |
|
|
1823 | } |
|
|
1824 | } |
1448 | |
1825 | |
1449 | return 0; |
1826 | return 0; |
1450 | } |
1827 | } |
1451 | |
1828 | |
|
|
1829 | static void |
|
|
1830 | invoke_sv_ready_hook_helper (void) |
|
|
1831 | { |
|
|
1832 | dTHX; |
|
|
1833 | dSP; |
|
|
1834 | |
|
|
1835 | ENTER; |
|
|
1836 | SAVETMPS; |
|
|
1837 | |
|
|
1838 | PUSHMARK (SP); |
|
|
1839 | PUTBACK; |
|
|
1840 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
|
|
1841 | |
|
|
1842 | FREETMPS; |
|
|
1843 | LEAVE; |
|
|
1844 | } |
|
|
1845 | |
1452 | static int |
1846 | static int |
1453 | api_ready (SV *coro_sv) |
1847 | api_ready (pTHX_ SV *coro_sv) |
1454 | { |
1848 | { |
1455 | dTHX; |
|
|
1456 | struct coro *coro; |
|
|
1457 | SV *sv_hook; |
|
|
1458 | void (*xs_hook)(void); |
|
|
1459 | |
|
|
1460 | if (SvROK (coro_sv)) |
|
|
1461 | coro_sv = SvRV (coro_sv); |
|
|
1462 | |
|
|
1463 | coro = SvSTATE (coro_sv); |
1849 | struct coro *coro = SvSTATE (coro_sv); |
1464 | |
1850 | |
1465 | if (coro->flags & CF_READY) |
1851 | if (coro->flags & CF_READY) |
1466 | return 0; |
1852 | return 0; |
1467 | |
1853 | |
1468 | coro->flags |= CF_READY; |
1854 | coro->flags |= CF_READY; |
1469 | |
1855 | |
1470 | LOCK; |
1856 | coro_enq (aTHX_ coro); |
1471 | |
1857 | |
1472 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1858 | if (!coro_nready++) |
1473 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1859 | if (coroapi.readyhook) |
1474 | |
1860 | coroapi.readyhook (); |
1475 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
|
|
1476 | ++coro_nready; |
|
|
1477 | |
|
|
1478 | UNLOCK; |
|
|
1479 | |
|
|
1480 | if (sv_hook) |
|
|
1481 | { |
|
|
1482 | dSP; |
|
|
1483 | |
|
|
1484 | ENTER; |
|
|
1485 | SAVETMPS; |
|
|
1486 | |
|
|
1487 | PUSHMARK (SP); |
|
|
1488 | PUTBACK; |
|
|
1489 | call_sv (sv_hook, G_DISCARD); |
|
|
1490 | SPAGAIN; |
|
|
1491 | |
|
|
1492 | FREETMPS; |
|
|
1493 | LEAVE; |
|
|
1494 | } |
|
|
1495 | |
|
|
1496 | if (xs_hook) |
|
|
1497 | xs_hook (); |
|
|
1498 | |
1861 | |
1499 | return 1; |
1862 | return 1; |
1500 | } |
1863 | } |
1501 | |
1864 | |
1502 | static int |
1865 | static int |
1503 | api_is_ready (SV *coro_sv) |
1866 | api_is_ready (pTHX_ SV *coro_sv) |
1504 | { |
1867 | { |
1505 | dTHX; |
|
|
1506 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1868 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1507 | } |
1869 | } |
1508 | |
1870 | |
1509 | static void |
1871 | /* expects to own a reference to next->hv */ |
|
|
1872 | ECB_INLINE void |
1510 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1873 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1511 | { |
1874 | { |
1512 | SV *prev_sv, *next_sv; |
|
|
1513 | |
|
|
1514 | for (;;) |
|
|
1515 | { |
|
|
1516 | LOCK; |
|
|
1517 | next_sv = coro_deq (aTHX); |
|
|
1518 | |
|
|
1519 | /* nothing to schedule: call the idle handler */ |
|
|
1520 | if (expect_false (!next_sv)) |
|
|
1521 | { |
|
|
1522 | dSP; |
|
|
1523 | UNLOCK; |
|
|
1524 | |
|
|
1525 | ENTER; |
|
|
1526 | SAVETMPS; |
|
|
1527 | |
|
|
1528 | PUSHMARK (SP); |
|
|
1529 | PUTBACK; |
|
|
1530 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1531 | SPAGAIN; |
|
|
1532 | |
|
|
1533 | FREETMPS; |
|
|
1534 | LEAVE; |
|
|
1535 | continue; |
|
|
1536 | } |
|
|
1537 | |
|
|
1538 | ta->next = SvSTATE (next_sv); |
|
|
1539 | |
|
|
1540 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1541 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1542 | { |
|
|
1543 | UNLOCK; |
|
|
1544 | SvREFCNT_dec (next_sv); |
|
|
1545 | /* coro_nready is already taken care of by destroy */ |
|
|
1546 | continue; |
|
|
1547 | } |
|
|
1548 | |
|
|
1549 | --coro_nready; |
|
|
1550 | UNLOCK; |
|
|
1551 | break; |
|
|
1552 | } |
|
|
1553 | |
|
|
1554 | /* free this only after the transfer */ |
|
|
1555 | prev_sv = SvRV (coro_current); |
1875 | SV *prev_sv = SvRV (coro_current); |
|
|
1876 | |
1556 | ta->prev = SvSTATE (prev_sv); |
1877 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1878 | ta->next = next; |
|
|
1879 | |
1557 | TRANSFER_CHECK (*ta); |
1880 | TRANSFER_CHECK (*ta); |
1558 | assert (ta->next->flags & CF_READY); |
1881 | |
1559 | ta->next->flags &= ~CF_READY; |
|
|
1560 | SvRV_set (coro_current, next_sv); |
1882 | SvRV_set (coro_current, (SV *)next->hv); |
1561 | |
1883 | |
1562 | LOCK; |
|
|
1563 | free_coro_mortal (aTHX); |
1884 | free_coro_mortal (aTHX); |
1564 | coro_mortal = prev_sv; |
1885 | coro_mortal = prev_sv; |
1565 | UNLOCK; |
|
|
1566 | } |
1886 | } |
1567 | |
1887 | |
1568 | static void |
1888 | static void |
|
|
1889 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1890 | { |
|
|
1891 | for (;;) |
|
|
1892 | { |
|
|
1893 | struct coro *next = coro_deq (aTHX); |
|
|
1894 | |
|
|
1895 | if (ecb_expect_true (next)) |
|
|
1896 | { |
|
|
1897 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1898 | if (ecb_expect_false (next->flags & (CF_ZOMBIE | CF_SUSPENDED))) |
|
|
1899 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1900 | else |
|
|
1901 | { |
|
|
1902 | next->flags &= ~CF_READY; |
|
|
1903 | --coro_nready; |
|
|
1904 | |
|
|
1905 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1906 | break; |
|
|
1907 | } |
|
|
1908 | } |
|
|
1909 | else |
|
|
1910 | { |
|
|
1911 | /* nothing to schedule: call the idle handler */ |
|
|
1912 | if (SvROK (sv_idle) |
|
|
1913 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1914 | { |
|
|
1915 | if (SvRV (sv_idle) == SvRV (coro_current)) |
|
|
1916 | croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught"); |
|
|
1917 | |
|
|
1918 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1919 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1920 | --coro_nready; |
|
|
1921 | } |
|
|
1922 | else |
|
|
1923 | { |
|
|
1924 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
1925 | dSP; |
|
|
1926 | |
|
|
1927 | ENTER; |
|
|
1928 | SAVETMPS; |
|
|
1929 | |
|
|
1930 | PUSHMARK (SP); |
|
|
1931 | PUTBACK; |
|
|
1932 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1933 | |
|
|
1934 | FREETMPS; |
|
|
1935 | LEAVE; |
|
|
1936 | } |
|
|
1937 | } |
|
|
1938 | } |
|
|
1939 | } |
|
|
1940 | |
|
|
1941 | ECB_INLINE void |
1569 | prepare_cede (pTHX_ struct transfer_args *ta) |
1942 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1570 | { |
1943 | { |
1571 | api_ready (coro_current); |
1944 | api_ready (aTHX_ coro_current); |
1572 | prepare_schedule (aTHX_ ta); |
1945 | prepare_schedule (aTHX_ ta); |
1573 | } |
1946 | } |
1574 | |
1947 | |
|
|
1948 | ECB_INLINE void |
|
|
1949 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1950 | { |
|
|
1951 | SV *prev = SvRV (coro_current); |
|
|
1952 | |
|
|
1953 | if (coro_nready) |
|
|
1954 | { |
|
|
1955 | prepare_schedule (aTHX_ ta); |
|
|
1956 | api_ready (aTHX_ prev); |
|
|
1957 | } |
|
|
1958 | else |
|
|
1959 | prepare_nop (aTHX_ ta); |
|
|
1960 | } |
|
|
1961 | |
|
|
1962 | static void |
|
|
1963 | api_schedule (pTHX) |
|
|
1964 | { |
|
|
1965 | struct coro_transfer_args ta; |
|
|
1966 | |
|
|
1967 | prepare_schedule (aTHX_ &ta); |
|
|
1968 | TRANSFER (ta, 1); |
|
|
1969 | } |
|
|
1970 | |
|
|
1971 | static void |
|
|
1972 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1973 | { |
|
|
1974 | struct coro_transfer_args ta; |
|
|
1975 | struct coro *next = SvSTATE (coro_sv); |
|
|
1976 | |
|
|
1977 | SvREFCNT_inc_NN (coro_sv); |
|
|
1978 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
1979 | } |
|
|
1980 | |
1575 | static int |
1981 | static int |
1576 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1982 | api_cede (pTHX) |
1577 | { |
1983 | { |
1578 | if (coro_nready) |
1984 | struct coro_transfer_args ta; |
1579 | { |
1985 | |
1580 | SV *prev = SvRV (coro_current); |
|
|
1581 | prepare_schedule (aTHX_ ta); |
1986 | prepare_cede (aTHX_ &ta); |
1582 | api_ready (prev); |
1987 | |
|
|
1988 | if (ecb_expect_true (ta.prev != ta.next)) |
|
|
1989 | { |
|
|
1990 | TRANSFER (ta, 1); |
1583 | return 1; |
1991 | return 1; |
1584 | } |
1992 | } |
1585 | else |
1993 | else |
1586 | return 0; |
1994 | return 0; |
1587 | } |
1995 | } |
1588 | |
1996 | |
1589 | static void |
|
|
1590 | api_schedule (void) |
|
|
1591 | { |
|
|
1592 | dTHX; |
|
|
1593 | struct transfer_args ta; |
|
|
1594 | |
|
|
1595 | prepare_schedule (aTHX_ &ta); |
|
|
1596 | TRANSFER (ta, 1); |
|
|
1597 | } |
|
|
1598 | |
|
|
1599 | static int |
1997 | static int |
1600 | api_cede (void) |
1998 | api_cede_notself (pTHX) |
1601 | { |
1999 | { |
1602 | dTHX; |
2000 | if (coro_nready) |
|
|
2001 | { |
1603 | struct transfer_args ta; |
2002 | struct coro_transfer_args ta; |
1604 | |
2003 | |
1605 | prepare_cede (aTHX_ &ta); |
2004 | prepare_cede_notself (aTHX_ &ta); |
1606 | |
|
|
1607 | if (expect_true (ta.prev != ta.next)) |
|
|
1608 | { |
|
|
1609 | TRANSFER (ta, 1); |
2005 | TRANSFER (ta, 1); |
1610 | return 1; |
2006 | return 1; |
1611 | } |
2007 | } |
1612 | else |
2008 | else |
1613 | return 0; |
2009 | return 0; |
1614 | } |
2010 | } |
1615 | |
2011 | |
1616 | static int |
2012 | static void |
1617 | api_cede_notself (void) |
|
|
1618 | { |
|
|
1619 | dTHX; |
|
|
1620 | struct transfer_args ta; |
|
|
1621 | |
|
|
1622 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1623 | { |
|
|
1624 | TRANSFER (ta, 1); |
|
|
1625 | return 1; |
|
|
1626 | } |
|
|
1627 | else |
|
|
1628 | return 0; |
|
|
1629 | } |
|
|
1630 | |
|
|
1631 | static void |
|
|
1632 | api_trace (SV *coro_sv, int flags) |
2013 | api_trace (pTHX_ SV *coro_sv, int flags) |
1633 | { |
2014 | { |
1634 | dTHX; |
|
|
1635 | struct coro *coro = SvSTATE (coro_sv); |
2015 | struct coro *coro = SvSTATE (coro_sv); |
1636 | |
2016 | |
|
|
2017 | if (coro->flags & CF_RUNNING) |
|
|
2018 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
2019 | |
1637 | if (flags & CC_TRACE) |
2020 | if (flags & CC_TRACE) |
1638 | { |
2021 | { |
1639 | if (!coro->cctx) |
2022 | if (!coro->cctx) |
1640 | coro->cctx = cctx_new (); |
2023 | coro->cctx = cctx_new_run (); |
1641 | else if (!(coro->cctx->flags & CC_TRACE)) |
2024 | else if (!(coro->cctx->flags & CC_TRACE)) |
1642 | croak ("cannot enable tracing on coroutine with custom stack"); |
2025 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1643 | |
2026 | |
1644 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
2027 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1645 | } |
2028 | } |
1646 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
2029 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1647 | { |
2030 | { |
… | |
… | |
1652 | else |
2035 | else |
1653 | coro->slot->runops = RUNOPS_DEFAULT; |
2036 | coro->slot->runops = RUNOPS_DEFAULT; |
1654 | } |
2037 | } |
1655 | } |
2038 | } |
1656 | |
2039 | |
1657 | #if 0 |
2040 | static void |
|
|
2041 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2042 | { |
|
|
2043 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2044 | { |
|
|
2045 | dSP; |
|
|
2046 | |
|
|
2047 | if (gimme_v == G_SCALAR) |
|
|
2048 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2049 | else |
|
|
2050 | { |
|
|
2051 | int i; |
|
|
2052 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2053 | |
|
|
2054 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2055 | PUSHs (AvARRAY (av)[i]); |
|
|
2056 | } |
|
|
2057 | |
|
|
2058 | PUTBACK; |
|
|
2059 | } |
|
|
2060 | } |
|
|
2061 | |
|
|
2062 | static void |
|
|
2063 | coro_push_on_destroy (pTHX_ struct coro *coro, SV *cb) |
|
|
2064 | { |
|
|
2065 | if (!coro->on_destroy) |
|
|
2066 | coro->on_destroy = newAV (); |
|
|
2067 | |
|
|
2068 | av_push (coro->on_destroy, cb); |
|
|
2069 | } |
|
|
2070 | |
|
|
2071 | static void |
|
|
2072 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2073 | { |
|
|
2074 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2075 | } |
|
|
2076 | |
1658 | static int |
2077 | static int |
1659 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
2078 | slf_check_join (pTHX_ struct CoroSLF *frame) |
1660 | { |
2079 | { |
1661 | AV *padlist; |
2080 | struct coro *coro = (struct coro *)frame->data; |
1662 | AV *av = (AV *)mg->mg_obj; |
|
|
1663 | |
2081 | |
1664 | abort (); |
2082 | if (!coro->status) |
|
|
2083 | return 1; |
|
|
2084 | |
|
|
2085 | frame->destroy = 0; |
|
|
2086 | |
|
|
2087 | coro_push_av (aTHX_ coro->status, GIMME_V); |
|
|
2088 | |
|
|
2089 | SvREFCNT_dec ((SV *)coro->hv); |
1665 | |
2090 | |
1666 | return 0; |
2091 | return 0; |
1667 | } |
2092 | } |
1668 | |
2093 | |
1669 | static MGVTBL coro_gensub_vtbl = { |
2094 | static void |
1670 | 0, 0, 0, 0, |
2095 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1671 | coro_gensub_free |
2096 | { |
1672 | }; |
2097 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
1673 | #endif |
2098 | |
|
|
2099 | if (items > 1) |
|
|
2100 | croak ("join called with too many arguments"); |
|
|
2101 | |
|
|
2102 | if (coro->status) |
|
|
2103 | frame->prepare = prepare_nop; |
|
|
2104 | else |
|
|
2105 | { |
|
|
2106 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2107 | frame->prepare = prepare_schedule; |
|
|
2108 | } |
|
|
2109 | |
|
|
2110 | frame->check = slf_check_join; |
|
|
2111 | frame->destroy = slf_destroy_join; |
|
|
2112 | frame->data = (void *)coro; |
|
|
2113 | SvREFCNT_inc (coro->hv); |
|
|
2114 | } |
|
|
2115 | |
|
|
2116 | static void |
|
|
2117 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
2118 | { |
|
|
2119 | AV *od = coro->on_destroy; |
|
|
2120 | |
|
|
2121 | if (!od) |
|
|
2122 | return; |
|
|
2123 | |
|
|
2124 | while (AvFILLp (od) >= 0) |
|
|
2125 | { |
|
|
2126 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2127 | |
|
|
2128 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2129 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2130 | api_ready (aTHX_ cb); |
|
|
2131 | else |
|
|
2132 | { |
|
|
2133 | dSP; /* don't disturb outer sp */ |
|
|
2134 | PUSHMARK (SP); |
|
|
2135 | |
|
|
2136 | if (coro->status) |
|
|
2137 | { |
|
|
2138 | PUTBACK; |
|
|
2139 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
|
|
2140 | SPAGAIN; |
|
|
2141 | } |
|
|
2142 | |
|
|
2143 | PUTBACK; |
|
|
2144 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2145 | } |
|
|
2146 | } |
|
|
2147 | } |
|
|
2148 | |
|
|
2149 | static void |
|
|
2150 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2151 | { |
|
|
2152 | AV *av; |
|
|
2153 | |
|
|
2154 | if (coro->status) |
|
|
2155 | { |
|
|
2156 | av = coro->status; |
|
|
2157 | av_clear (av); |
|
|
2158 | } |
|
|
2159 | else |
|
|
2160 | av = coro->status = newAV (); |
|
|
2161 | |
|
|
2162 | /* items are actually not so common, so optimise for this case */ |
|
|
2163 | if (items) |
|
|
2164 | { |
|
|
2165 | int i; |
|
|
2166 | |
|
|
2167 | av_extend (av, items - 1); |
|
|
2168 | |
|
|
2169 | for (i = 0; i < items; ++i) |
|
|
2170 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2171 | } |
|
|
2172 | } |
|
|
2173 | |
|
|
2174 | static void |
|
|
2175 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2176 | { |
|
|
2177 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
|
|
2178 | api_ready (aTHX_ sv_manager); |
|
|
2179 | |
|
|
2180 | frame->prepare = prepare_schedule; |
|
|
2181 | frame->check = slf_check_repeat; |
|
|
2182 | |
|
|
2183 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2184 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2185 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2186 | } |
|
|
2187 | |
|
|
2188 | static void |
|
|
2189 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2190 | { |
|
|
2191 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2192 | |
|
|
2193 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2194 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2195 | } |
|
|
2196 | |
|
|
2197 | static void |
|
|
2198 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2199 | { |
|
|
2200 | HV *coro_hv; |
|
|
2201 | struct coro *coro; |
|
|
2202 | |
|
|
2203 | if (items <= 0) |
|
|
2204 | croak ("Coro::cancel called without coro object,"); |
|
|
2205 | |
|
|
2206 | coro = SvSTATE (arg [0]); |
|
|
2207 | coro_hv = coro->hv; |
|
|
2208 | |
|
|
2209 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2210 | |
|
|
2211 | if (ecb_expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2212 | { |
|
|
2213 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2214 | coro->slf_frame.data = (void *)coro; |
|
|
2215 | |
|
|
2216 | frame->prepare = prepare_nop; |
|
|
2217 | frame->check = slf_check_nop; |
|
|
2218 | } |
|
|
2219 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2220 | { |
|
|
2221 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2222 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2223 | } |
|
|
2224 | else |
|
|
2225 | { |
|
|
2226 | struct coro *self = SvSTATE_current; |
|
|
2227 | |
|
|
2228 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2229 | * unfortunately, this requires some magic trickery, as |
|
|
2230 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2231 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2232 | * besides, I can't get the slow-but-safe version working... |
|
|
2233 | */ |
|
|
2234 | slf_frame.data = 0; |
|
|
2235 | self->flags |= CF_NOCANCEL; |
|
|
2236 | coro_state_destroy (aTHX_ coro); |
|
|
2237 | self->flags &= ~CF_NOCANCEL; |
|
|
2238 | |
|
|
2239 | if (slf_frame.data) |
|
|
2240 | { |
|
|
2241 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2242 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2243 | } |
|
|
2244 | else |
|
|
2245 | { |
|
|
2246 | frame->prepare = prepare_nop; |
|
|
2247 | frame->check = slf_check_nop; |
|
|
2248 | } |
|
|
2249 | } |
|
|
2250 | } |
|
|
2251 | |
|
|
2252 | static int |
|
|
2253 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2254 | { |
|
|
2255 | frame->prepare = 0; |
|
|
2256 | coro_unwind_stacks (aTHX); |
|
|
2257 | |
|
|
2258 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2259 | |
|
|
2260 | return 1; |
|
|
2261 | } |
|
|
2262 | |
|
|
2263 | static int |
|
|
2264 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2265 | { |
|
|
2266 | if (coro->cctx) |
|
|
2267 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2268 | |
|
|
2269 | if (coro->flags & CF_NEW) |
|
|
2270 | { |
|
|
2271 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2272 | coro_state_destroy (aTHX_ coro); |
|
|
2273 | } |
|
|
2274 | else |
|
|
2275 | { |
|
|
2276 | if (!coro->slf_frame.prepare) |
|
|
2277 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2278 | |
|
|
2279 | slf_destroy (aTHX_ coro); |
|
|
2280 | |
|
|
2281 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2282 | coro->slf_frame.prepare = prepare_nop; |
|
|
2283 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2284 | |
|
|
2285 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2286 | } |
|
|
2287 | |
|
|
2288 | return 1; |
|
|
2289 | } |
|
|
2290 | |
|
|
2291 | /*****************************************************************************/ |
|
|
2292 | /* async pool handler */ |
|
|
2293 | |
|
|
2294 | static int |
|
|
2295 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2296 | { |
|
|
2297 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2298 | struct coro *coro = (struct coro *)frame->data; |
|
|
2299 | |
|
|
2300 | if (!coro->invoke_cb) |
|
|
2301 | return 1; /* loop till we have invoke */ |
|
|
2302 | else |
|
|
2303 | { |
|
|
2304 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2305 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2306 | |
|
|
2307 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2308 | |
|
|
2309 | { |
|
|
2310 | dSP; |
|
|
2311 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2312 | PUTBACK; |
|
|
2313 | } |
|
|
2314 | |
|
|
2315 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2316 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2317 | coro->invoke_av = 0; |
|
|
2318 | |
|
|
2319 | return 0; |
|
|
2320 | } |
|
|
2321 | } |
|
|
2322 | |
|
|
2323 | static void |
|
|
2324 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2325 | { |
|
|
2326 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2327 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2328 | |
|
|
2329 | if (ecb_expect_true (coro->saved_deffh)) |
|
|
2330 | { |
|
|
2331 | /* subsequent iteration */ |
|
|
2332 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2333 | coro->saved_deffh = 0; |
|
|
2334 | |
|
|
2335 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2336 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2337 | { |
|
|
2338 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
|
|
2339 | return; |
|
|
2340 | } |
|
|
2341 | else |
|
|
2342 | { |
|
|
2343 | av_clear (GvAV (PL_defgv)); |
|
|
2344 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2345 | |
|
|
2346 | coro->prio = 0; |
|
|
2347 | |
|
|
2348 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2349 | api_trace (aTHX_ coro_current, 0); |
|
|
2350 | |
|
|
2351 | frame->prepare = prepare_schedule; |
|
|
2352 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2353 | } |
|
|
2354 | } |
|
|
2355 | else |
|
|
2356 | { |
|
|
2357 | /* first iteration, simply fall through */ |
|
|
2358 | frame->prepare = prepare_nop; |
|
|
2359 | } |
|
|
2360 | |
|
|
2361 | frame->check = slf_check_pool_handler; |
|
|
2362 | frame->data = (void *)coro; |
|
|
2363 | } |
|
|
2364 | |
|
|
2365 | /*****************************************************************************/ |
|
|
2366 | /* rouse callback */ |
|
|
2367 | |
|
|
2368 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2369 | |
|
|
2370 | static void |
|
|
2371 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2372 | { |
|
|
2373 | dXSARGS; |
|
|
2374 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2375 | |
|
|
2376 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2377 | { |
|
|
2378 | /* first call, set args */ |
|
|
2379 | SV *coro = SvRV (data); |
|
|
2380 | AV *av = newAV (); |
|
|
2381 | |
|
|
2382 | SvRV_set (data, (SV *)av); |
|
|
2383 | |
|
|
2384 | /* better take a full copy of the arguments */ |
|
|
2385 | while (items--) |
|
|
2386 | av_store (av, items, newSVsv (ST (items))); |
|
|
2387 | |
|
|
2388 | api_ready (aTHX_ coro); |
|
|
2389 | SvREFCNT_dec (coro); |
|
|
2390 | } |
|
|
2391 | |
|
|
2392 | XSRETURN_EMPTY; |
|
|
2393 | } |
|
|
2394 | |
|
|
2395 | static int |
|
|
2396 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2397 | { |
|
|
2398 | SV *data = (SV *)frame->data; |
|
|
2399 | |
|
|
2400 | if (CORO_THROW) |
|
|
2401 | return 0; |
|
|
2402 | |
|
|
2403 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2404 | return 1; |
|
|
2405 | |
|
|
2406 | /* now push all results on the stack */ |
|
|
2407 | { |
|
|
2408 | dSP; |
|
|
2409 | AV *av = (AV *)SvRV (data); |
|
|
2410 | int i; |
|
|
2411 | |
|
|
2412 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2413 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2414 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2415 | |
|
|
2416 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2417 | AvFILLp (av) = -1; |
|
|
2418 | av_undef (av); |
|
|
2419 | |
|
|
2420 | PUTBACK; |
|
|
2421 | } |
|
|
2422 | |
|
|
2423 | return 0; |
|
|
2424 | } |
|
|
2425 | |
|
|
2426 | static void |
|
|
2427 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2428 | { |
|
|
2429 | SV *cb; |
|
|
2430 | |
|
|
2431 | if (items) |
|
|
2432 | cb = arg [0]; |
|
|
2433 | else |
|
|
2434 | { |
|
|
2435 | struct coro *coro = SvSTATE_current; |
|
|
2436 | |
|
|
2437 | if (!coro->rouse_cb) |
|
|
2438 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2439 | |
|
|
2440 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2441 | coro->rouse_cb = 0; |
|
|
2442 | } |
|
|
2443 | |
|
|
2444 | if (!SvROK (cb) |
|
|
2445 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2446 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2447 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2448 | |
|
|
2449 | { |
|
|
2450 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2451 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2452 | |
|
|
2453 | frame->data = (void *)data; |
|
|
2454 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2455 | frame->check = slf_check_rouse_wait; |
|
|
2456 | } |
|
|
2457 | } |
|
|
2458 | |
|
|
2459 | static SV * |
|
|
2460 | coro_new_rouse_cb (pTHX) |
|
|
2461 | { |
|
|
2462 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2463 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2464 | SV *data = newRV_inc ((SV *)hv); |
|
|
2465 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2466 | |
|
|
2467 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2468 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2469 | |
|
|
2470 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2471 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2472 | |
|
|
2473 | return cb; |
|
|
2474 | } |
|
|
2475 | |
|
|
2476 | /*****************************************************************************/ |
|
|
2477 | /* schedule-like-function opcode (SLF) */ |
|
|
2478 | |
|
|
2479 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2480 | static const CV *slf_cv; |
|
|
2481 | static SV **slf_argv; |
|
|
2482 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2483 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2484 | |
|
|
2485 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2486 | /* recreate the stack frame as perl will on following calls */ |
|
|
2487 | /* since entersub cleared the stack */ |
|
|
2488 | static OP * |
|
|
2489 | pp_restore (pTHX) |
|
|
2490 | { |
|
|
2491 | int i; |
|
|
2492 | SV **SP = PL_stack_base + slf_ax; |
|
|
2493 | |
|
|
2494 | PUSHMARK (SP); |
|
|
2495 | |
|
|
2496 | EXTEND (SP, slf_argc + 1); |
|
|
2497 | |
|
|
2498 | for (i = 0; i < slf_argc; ++i) |
|
|
2499 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2500 | |
|
|
2501 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2502 | |
|
|
2503 | RETURNOP (slf_restore.op_first); |
|
|
2504 | } |
|
|
2505 | |
|
|
2506 | static void |
|
|
2507 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2508 | { |
|
|
2509 | SV **arg = (SV **)slf_frame.data; |
|
|
2510 | |
|
|
2511 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2512 | } |
|
|
2513 | |
|
|
2514 | static void |
|
|
2515 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2516 | { |
|
|
2517 | if (items != 2) |
|
|
2518 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2519 | |
|
|
2520 | frame->prepare = slf_prepare_transfer; |
|
|
2521 | frame->check = slf_check_nop; |
|
|
2522 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2523 | } |
|
|
2524 | |
|
|
2525 | static void |
|
|
2526 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2527 | { |
|
|
2528 | frame->prepare = prepare_schedule; |
|
|
2529 | frame->check = slf_check_nop; |
|
|
2530 | } |
|
|
2531 | |
|
|
2532 | static void |
|
|
2533 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2534 | { |
|
|
2535 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2536 | |
|
|
2537 | SvREFCNT_inc_NN (next->hv); |
|
|
2538 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2539 | } |
|
|
2540 | |
|
|
2541 | static void |
|
|
2542 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2543 | { |
|
|
2544 | if (!items) |
|
|
2545 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2546 | |
|
|
2547 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2548 | frame->prepare = slf_prepare_schedule_to; |
|
|
2549 | frame->check = slf_check_nop; |
|
|
2550 | } |
|
|
2551 | |
|
|
2552 | static void |
|
|
2553 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2554 | { |
|
|
2555 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2556 | |
|
|
2557 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2558 | } |
|
|
2559 | |
|
|
2560 | static void |
|
|
2561 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2562 | { |
|
|
2563 | frame->prepare = prepare_cede; |
|
|
2564 | frame->check = slf_check_nop; |
|
|
2565 | } |
|
|
2566 | |
|
|
2567 | static void |
|
|
2568 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2569 | { |
|
|
2570 | frame->prepare = prepare_cede_notself; |
|
|
2571 | frame->check = slf_check_nop; |
|
|
2572 | } |
|
|
2573 | |
|
|
2574 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2575 | static void |
|
|
2576 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2577 | { |
|
|
2578 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2579 | if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty) |
|
|
2580 | coro->slf_frame.destroy (aTHX_ &coro->slf_frame); |
|
|
2581 | |
|
|
2582 | /* |
|
|
2583 | * The on_destroy above most likely is from an SLF call. |
|
|
2584 | * Since by definition the SLF call will not finish when we destroy |
|
|
2585 | * the coro, we will have to force-finish it here, otherwise |
|
|
2586 | * cleanup functions cannot call SLF functions. |
|
|
2587 | */ |
|
|
2588 | coro->slf_frame.prepare = 0; |
|
|
2589 | } |
|
|
2590 | |
|
|
2591 | /* |
|
|
2592 | * these not obviously related functions are all rolled into one |
|
|
2593 | * function to increase chances that they all will call transfer with the same |
|
|
2594 | * stack offset |
|
|
2595 | * SLF stands for "schedule-like-function". |
|
|
2596 | */ |
|
|
2597 | static OP * |
|
|
2598 | pp_slf (pTHX) |
|
|
2599 | { |
|
|
2600 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2601 | |
|
|
2602 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2603 | /* the latter happens when a new coro has been started */ |
|
|
2604 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2605 | if (ecb_expect_true (!slf_frame.prepare)) |
|
|
2606 | { |
|
|
2607 | /* first iteration */ |
|
|
2608 | dSP; |
|
|
2609 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2610 | int items = SP - arg; /* args without function object */ |
|
|
2611 | SV *gv = *sp; |
|
|
2612 | |
|
|
2613 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2614 | /* for us, divert to the real entersub */ |
|
|
2615 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2616 | || !GvCV (gv) |
|
|
2617 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2618 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2619 | |
|
|
2620 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2621 | { |
|
|
2622 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2623 | AV *av = GvAV (PL_defgv); |
|
|
2624 | arg = AvARRAY (av); |
|
|
2625 | items = AvFILLp (av) + 1; |
|
|
2626 | } |
|
|
2627 | |
|
|
2628 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2629 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2630 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2631 | |
|
|
2632 | /* pop args */ |
|
|
2633 | SP = PL_stack_base + POPMARK; |
|
|
2634 | |
|
|
2635 | PUTBACK; |
|
|
2636 | } |
|
|
2637 | |
|
|
2638 | /* now that we have a slf_frame, interpret it! */ |
|
|
2639 | /* we use a callback system not to make the code needlessly */ |
|
|
2640 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2641 | |
|
|
2642 | do |
|
|
2643 | { |
|
|
2644 | struct coro_transfer_args ta; |
|
|
2645 | |
|
|
2646 | slf_frame.prepare (aTHX_ &ta); |
|
|
2647 | TRANSFER (ta, 0); |
|
|
2648 | |
|
|
2649 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2650 | } |
|
|
2651 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2652 | |
|
|
2653 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2654 | |
|
|
2655 | /* exception handling */ |
|
|
2656 | if (ecb_expect_false (CORO_THROW)) |
|
|
2657 | { |
|
|
2658 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2659 | |
|
|
2660 | CORO_THROW = 0; |
|
|
2661 | sv_setsv (ERRSV, exception); |
|
|
2662 | croak (0); |
|
|
2663 | } |
|
|
2664 | |
|
|
2665 | /* return value handling - mostly like entersub */ |
|
|
2666 | /* make sure we put something on the stack in scalar context */ |
|
|
2667 | if (GIMME_V == G_SCALAR |
|
|
2668 | && ecb_expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
|
|
2669 | { |
|
|
2670 | dSP; |
|
|
2671 | SV **bot = PL_stack_base + checkmark; |
|
|
2672 | |
|
|
2673 | if (sp == bot) /* too few, push undef */ |
|
|
2674 | bot [1] = &PL_sv_undef; |
|
|
2675 | else /* too many, take last one */ |
|
|
2676 | bot [1] = *sp; |
|
|
2677 | |
|
|
2678 | SP = bot + 1; |
|
|
2679 | |
|
|
2680 | PUTBACK; |
|
|
2681 | } |
|
|
2682 | |
|
|
2683 | return NORMAL; |
|
|
2684 | } |
|
|
2685 | |
|
|
2686 | static void |
|
|
2687 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2688 | { |
|
|
2689 | int i; |
|
|
2690 | SV **arg = PL_stack_base + ax; |
|
|
2691 | int items = PL_stack_sp - arg + 1; |
|
|
2692 | |
|
|
2693 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2694 | |
|
|
2695 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2696 | && PL_op->op_ppaddr != pp_slf) |
|
|
2697 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2698 | |
|
|
2699 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2700 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2701 | slf_cv = cv; |
|
|
2702 | |
|
|
2703 | /* we patch the op, and then re-run the whole call */ |
|
|
2704 | /* we have to put the same argument on the stack for this to work */ |
|
|
2705 | /* and this will be done by pp_restore */ |
|
|
2706 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2707 | slf_restore.op_type = OP_CUSTOM; |
|
|
2708 | slf_restore.op_ppaddr = pp_restore; |
|
|
2709 | slf_restore.op_first = PL_op; |
|
|
2710 | |
|
|
2711 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2712 | |
|
|
2713 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2714 | { |
|
|
2715 | if (items > slf_arga) |
|
|
2716 | { |
|
|
2717 | slf_arga = items; |
|
|
2718 | Safefree (slf_argv); |
|
|
2719 | New (0, slf_argv, slf_arga, SV *); |
|
|
2720 | } |
|
|
2721 | |
|
|
2722 | slf_argc = items; |
|
|
2723 | |
|
|
2724 | for (i = 0; i < items; ++i) |
|
|
2725 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2726 | } |
|
|
2727 | else |
|
|
2728 | slf_argc = 0; |
|
|
2729 | |
|
|
2730 | PL_op->op_ppaddr = pp_slf; |
|
|
2731 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2732 | |
|
|
2733 | PL_op = (OP *)&slf_restore; |
|
|
2734 | } |
|
|
2735 | |
|
|
2736 | /*****************************************************************************/ |
|
|
2737 | /* dynamic wind */ |
|
|
2738 | |
|
|
2739 | static void |
|
|
2740 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2741 | { |
|
|
2742 | dSP; |
|
|
2743 | |
|
|
2744 | PUSHSTACK; |
|
|
2745 | |
|
|
2746 | PUSHMARK (SP); |
|
|
2747 | PUTBACK; |
|
|
2748 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2749 | SPAGAIN; |
|
|
2750 | |
|
|
2751 | POPSTACK; |
|
|
2752 | } |
|
|
2753 | |
|
|
2754 | static SV * |
|
|
2755 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2756 | { |
|
|
2757 | AV *av = *avp; |
|
|
2758 | SV *res = av_pop (av); |
|
|
2759 | |
|
|
2760 | if (AvFILLp (av) < 0) |
|
|
2761 | { |
|
|
2762 | *avp = 0; |
|
|
2763 | SvREFCNT_dec (av); |
|
|
2764 | } |
|
|
2765 | |
|
|
2766 | return res; |
|
|
2767 | } |
|
|
2768 | |
|
|
2769 | static void |
|
|
2770 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2771 | { |
|
|
2772 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2773 | SvREFCNT_dec (cb); |
|
|
2774 | } |
|
|
2775 | |
|
|
2776 | static void |
|
|
2777 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2778 | { |
|
|
2779 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2780 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2781 | } |
1674 | |
2782 | |
1675 | /*****************************************************************************/ |
2783 | /*****************************************************************************/ |
1676 | /* PerlIO::cede */ |
2784 | /* PerlIO::cede */ |
1677 | |
2785 | |
1678 | typedef struct |
2786 | typedef struct |
1679 | { |
2787 | { |
1680 | PerlIOBuf base; |
2788 | PerlIOBuf base; |
1681 | NV next, every; |
2789 | NV next, every; |
1682 | } PerlIOCede; |
2790 | } PerlIOCede; |
1683 | |
2791 | |
1684 | static IV |
2792 | static IV ecb_cold |
1685 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
2793 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
1686 | { |
2794 | { |
1687 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2795 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1688 | |
2796 | |
1689 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
2797 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
1690 | self->next = nvtime () + self->every; |
2798 | self->next = nvtime () + self->every; |
1691 | |
2799 | |
1692 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
2800 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
1693 | } |
2801 | } |
1694 | |
2802 | |
1695 | static SV * |
2803 | static SV * ecb_cold |
1696 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
2804 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
1697 | { |
2805 | { |
1698 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2806 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1699 | |
2807 | |
1700 | return newSVnv (self->every); |
2808 | return newSVnv (self->every); |
… | |
… | |
1706 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2814 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1707 | double now = nvtime (); |
2815 | double now = nvtime (); |
1708 | |
2816 | |
1709 | if (now >= self->next) |
2817 | if (now >= self->next) |
1710 | { |
2818 | { |
1711 | api_cede (); |
2819 | api_cede (aTHX); |
1712 | self->next = now + self->every; |
2820 | self->next = now + self->every; |
1713 | } |
2821 | } |
1714 | |
2822 | |
1715 | return PerlIOBuf_flush (aTHX_ f); |
2823 | return PerlIOBuf_flush (aTHX_ f); |
1716 | } |
2824 | } |
… | |
… | |
1745 | PerlIOBuf_get_ptr, |
2853 | PerlIOBuf_get_ptr, |
1746 | PerlIOBuf_get_cnt, |
2854 | PerlIOBuf_get_cnt, |
1747 | PerlIOBuf_set_ptrcnt, |
2855 | PerlIOBuf_set_ptrcnt, |
1748 | }; |
2856 | }; |
1749 | |
2857 | |
|
|
2858 | /*****************************************************************************/ |
|
|
2859 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2860 | |
|
|
2861 | static SV * |
|
|
2862 | coro_waitarray_new (pTHX_ int count) |
|
|
2863 | { |
|
|
2864 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2865 | AV *av = newAV (); |
|
|
2866 | SV **ary; |
|
|
2867 | |
|
|
2868 | /* unfortunately, building manually saves memory */ |
|
|
2869 | Newx (ary, 2, SV *); |
|
|
2870 | AvALLOC (av) = ary; |
|
|
2871 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2872 | AvARRAY (av) = ary; |
|
|
2873 | #else |
|
|
2874 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2875 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2876 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2877 | #endif |
|
|
2878 | AvMAX (av) = 1; |
|
|
2879 | AvFILLp (av) = 0; |
|
|
2880 | ary [0] = newSViv (count); |
|
|
2881 | |
|
|
2882 | return newRV_noinc ((SV *)av); |
|
|
2883 | } |
|
|
2884 | |
|
|
2885 | /* semaphore */ |
|
|
2886 | |
|
|
2887 | static void |
|
|
2888 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2889 | { |
|
|
2890 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2891 | IV count = SvIVX (count_sv); |
|
|
2892 | |
|
|
2893 | count += adjust; |
|
|
2894 | SvIVX (count_sv) = count; |
|
|
2895 | |
|
|
2896 | /* now wake up as many waiters as are expected to lock */ |
|
|
2897 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2898 | { |
|
|
2899 | SV *cb; |
|
|
2900 | |
|
|
2901 | /* swap first two elements so we can shift a waiter */ |
|
|
2902 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2903 | AvARRAY (av)[1] = count_sv; |
|
|
2904 | cb = av_shift (av); |
|
|
2905 | |
|
|
2906 | if (SvOBJECT (cb)) |
|
|
2907 | { |
|
|
2908 | api_ready (aTHX_ cb); |
|
|
2909 | --count; |
|
|
2910 | } |
|
|
2911 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2912 | { |
|
|
2913 | dSP; |
|
|
2914 | PUSHMARK (SP); |
|
|
2915 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2916 | PUTBACK; |
|
|
2917 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2918 | } |
|
|
2919 | |
|
|
2920 | SvREFCNT_dec (cb); |
|
|
2921 | } |
|
|
2922 | } |
|
|
2923 | |
|
|
2924 | static void |
|
|
2925 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
|
|
2926 | { |
|
|
2927 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2928 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
|
|
2929 | } |
|
|
2930 | |
|
|
2931 | static int |
|
|
2932 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2933 | { |
|
|
2934 | AV *av = (AV *)frame->data; |
|
|
2935 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2936 | SV *coro_hv = SvRV (coro_current); |
|
|
2937 | |
|
|
2938 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2939 | if (CORO_THROW) |
|
|
2940 | return 0; |
|
|
2941 | else if (SvIVX (count_sv) > 0) |
|
|
2942 | { |
|
|
2943 | frame->destroy = 0; |
|
|
2944 | |
|
|
2945 | if (acquire) |
|
|
2946 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2947 | else |
|
|
2948 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2949 | |
|
|
2950 | return 0; |
|
|
2951 | } |
|
|
2952 | else |
|
|
2953 | { |
|
|
2954 | int i; |
|
|
2955 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2956 | /* waiters list and only add us if we aren't in there already */ |
|
|
2957 | /* this avoids some degenerate memory usage cases */ |
|
|
2958 | for (i = AvFILLp (av); i > 0; --i) /* i > 0 is not an off-by-one bug */ |
|
|
2959 | if (AvARRAY (av)[i] == coro_hv) |
|
|
2960 | return 1; |
|
|
2961 | |
|
|
2962 | av_push (av, SvREFCNT_inc (coro_hv)); |
|
|
2963 | return 1; |
|
|
2964 | } |
|
|
2965 | } |
|
|
2966 | |
|
|
2967 | static int |
|
|
2968 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2969 | { |
|
|
2970 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2971 | } |
|
|
2972 | |
|
|
2973 | static int |
|
|
2974 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2975 | { |
|
|
2976 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2977 | } |
|
|
2978 | |
|
|
2979 | static void |
|
|
2980 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2981 | { |
|
|
2982 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2983 | |
|
|
2984 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2985 | { |
|
|
2986 | frame->data = (void *)av; |
|
|
2987 | frame->prepare = prepare_nop; |
|
|
2988 | } |
|
|
2989 | else |
|
|
2990 | { |
|
|
2991 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2992 | |
|
|
2993 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2994 | frame->prepare = prepare_schedule; |
|
|
2995 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2996 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2997 | frame->destroy = coro_semaphore_destroy; |
|
|
2998 | } |
|
|
2999 | } |
|
|
3000 | |
|
|
3001 | static void |
|
|
3002 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3003 | { |
|
|
3004 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3005 | frame->check = slf_check_semaphore_down; |
|
|
3006 | } |
|
|
3007 | |
|
|
3008 | static void |
|
|
3009 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3010 | { |
|
|
3011 | if (items >= 2) |
|
|
3012 | { |
|
|
3013 | /* callback form */ |
|
|
3014 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3015 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3016 | |
|
|
3017 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3018 | |
|
|
3019 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3020 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3021 | |
|
|
3022 | frame->prepare = prepare_nop; |
|
|
3023 | frame->check = slf_check_nop; |
|
|
3024 | } |
|
|
3025 | else |
|
|
3026 | { |
|
|
3027 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3028 | frame->check = slf_check_semaphore_wait; |
|
|
3029 | } |
|
|
3030 | } |
|
|
3031 | |
|
|
3032 | /* signal */ |
|
|
3033 | |
|
|
3034 | static void |
|
|
3035 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
3036 | { |
|
|
3037 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3038 | |
|
|
3039 | /* now signal count waiters */ |
|
|
3040 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3041 | { |
|
|
3042 | SV *cb; |
|
|
3043 | |
|
|
3044 | /* swap first two elements so we can shift a waiter */ |
|
|
3045 | cb = AvARRAY (av)[0]; |
|
|
3046 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3047 | AvARRAY (av)[1] = cb; |
|
|
3048 | |
|
|
3049 | cb = av_shift (av); |
|
|
3050 | |
|
|
3051 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
3052 | { |
|
|
3053 | dSP; |
|
|
3054 | PUSHMARK (SP); |
|
|
3055 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
3056 | PUTBACK; |
|
|
3057 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
3058 | } |
|
|
3059 | else |
|
|
3060 | { |
|
|
3061 | api_ready (aTHX_ cb); |
|
|
3062 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
3063 | } |
|
|
3064 | |
|
|
3065 | SvREFCNT_dec (cb); |
|
|
3066 | |
|
|
3067 | --count; |
|
|
3068 | } |
|
|
3069 | } |
|
|
3070 | |
|
|
3071 | static int |
|
|
3072 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
3073 | { |
|
|
3074 | /* if we are about to throw, also stop waiting */ |
|
|
3075 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
3076 | } |
|
|
3077 | |
|
|
3078 | static void |
|
|
3079 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3080 | { |
|
|
3081 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3082 | |
|
|
3083 | if (items >= 2) |
|
|
3084 | { |
|
|
3085 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3086 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3087 | |
|
|
3088 | if (SvIVX (AvARRAY (av)[0])) |
|
|
3089 | coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */ |
|
|
3090 | |
|
|
3091 | frame->prepare = prepare_nop; |
|
|
3092 | frame->check = slf_check_nop; |
|
|
3093 | } |
|
|
3094 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
3095 | { |
|
|
3096 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3097 | frame->prepare = prepare_nop; |
|
|
3098 | frame->check = slf_check_nop; |
|
|
3099 | } |
|
|
3100 | else |
|
|
3101 | { |
|
|
3102 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
3103 | |
|
|
3104 | av_push (av, waiter); |
|
|
3105 | |
|
|
3106 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
3107 | frame->prepare = prepare_schedule; |
|
|
3108 | frame->check = slf_check_signal_wait; |
|
|
3109 | } |
|
|
3110 | } |
|
|
3111 | |
|
|
3112 | /*****************************************************************************/ |
|
|
3113 | /* Coro::AIO */ |
|
|
3114 | |
|
|
3115 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
3116 | |
|
|
3117 | /* helper storage struct */ |
|
|
3118 | struct io_state |
|
|
3119 | { |
|
|
3120 | int errorno; |
|
|
3121 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
3122 | int laststatval; |
|
|
3123 | Stat_t statcache; |
|
|
3124 | }; |
|
|
3125 | |
|
|
3126 | static void |
|
|
3127 | coro_aio_callback (pTHX_ CV *cv) |
|
|
3128 | { |
|
|
3129 | dXSARGS; |
|
|
3130 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
3131 | SV *coro = av_pop (state); |
|
|
3132 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
3133 | |
|
|
3134 | av_extend (state, items - 1); |
|
|
3135 | |
|
|
3136 | sv_upgrade (data_sv, SVt_PV); |
|
|
3137 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
3138 | SvPOK_only (data_sv); |
|
|
3139 | |
|
|
3140 | { |
|
|
3141 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3142 | |
|
|
3143 | data->errorno = errno; |
|
|
3144 | data->laststype = PL_laststype; |
|
|
3145 | data->laststatval = PL_laststatval; |
|
|
3146 | data->statcache = PL_statcache; |
|
|
3147 | } |
|
|
3148 | |
|
|
3149 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
3150 | { |
|
|
3151 | int i; |
|
|
3152 | |
|
|
3153 | for (i = 0; i < items; ++i) |
|
|
3154 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
3155 | } |
|
|
3156 | |
|
|
3157 | av_push (state, data_sv); |
|
|
3158 | |
|
|
3159 | api_ready (aTHX_ coro); |
|
|
3160 | SvREFCNT_dec (coro); |
|
|
3161 | SvREFCNT_dec ((AV *)state); |
|
|
3162 | } |
|
|
3163 | |
|
|
3164 | static int |
|
|
3165 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
3166 | { |
|
|
3167 | AV *state = (AV *)frame->data; |
|
|
3168 | |
|
|
3169 | /* if we are about to throw, return early */ |
|
|
3170 | /* this does not cancel the aio request, but at least */ |
|
|
3171 | /* it quickly returns */ |
|
|
3172 | if (CORO_THROW) |
|
|
3173 | return 0; |
|
|
3174 | |
|
|
3175 | /* one element that is an RV? repeat! */ |
|
|
3176 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
3177 | return 1; |
|
|
3178 | |
|
|
3179 | /* restore status */ |
|
|
3180 | { |
|
|
3181 | SV *data_sv = av_pop (state); |
|
|
3182 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3183 | |
|
|
3184 | errno = data->errorno; |
|
|
3185 | PL_laststype = data->laststype; |
|
|
3186 | PL_laststatval = data->laststatval; |
|
|
3187 | PL_statcache = data->statcache; |
|
|
3188 | |
|
|
3189 | SvREFCNT_dec (data_sv); |
|
|
3190 | } |
|
|
3191 | |
|
|
3192 | /* push result values */ |
|
|
3193 | { |
|
|
3194 | dSP; |
|
|
3195 | int i; |
|
|
3196 | |
|
|
3197 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
3198 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
3199 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
3200 | |
|
|
3201 | PUTBACK; |
|
|
3202 | } |
|
|
3203 | |
|
|
3204 | return 0; |
|
|
3205 | } |
|
|
3206 | |
|
|
3207 | static void |
|
|
3208 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3209 | { |
|
|
3210 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
3211 | SV *coro_hv = SvRV (coro_current); |
|
|
3212 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
3213 | |
|
|
3214 | /* put our coroutine id on the state arg */ |
|
|
3215 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
3216 | |
|
|
3217 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
3218 | if (coro->prio) |
|
|
3219 | { |
|
|
3220 | dSP; |
|
|
3221 | |
|
|
3222 | static SV *prio_cv; |
|
|
3223 | static SV *prio_sv; |
|
|
3224 | |
|
|
3225 | if (ecb_expect_false (!prio_cv)) |
|
|
3226 | { |
|
|
3227 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
3228 | prio_sv = newSViv (0); |
|
|
3229 | } |
|
|
3230 | |
|
|
3231 | PUSHMARK (SP); |
|
|
3232 | sv_setiv (prio_sv, coro->prio); |
|
|
3233 | XPUSHs (prio_sv); |
|
|
3234 | |
|
|
3235 | PUTBACK; |
|
|
3236 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
3237 | } |
|
|
3238 | |
|
|
3239 | /* now call the original request */ |
|
|
3240 | { |
|
|
3241 | dSP; |
|
|
3242 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
3243 | int i; |
|
|
3244 | |
|
|
3245 | PUSHMARK (SP); |
|
|
3246 | |
|
|
3247 | /* first push all args to the stack */ |
|
|
3248 | EXTEND (SP, items + 1); |
|
|
3249 | |
|
|
3250 | for (i = 0; i < items; ++i) |
|
|
3251 | PUSHs (arg [i]); |
|
|
3252 | |
|
|
3253 | /* now push the callback closure */ |
|
|
3254 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
3255 | |
|
|
3256 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
3257 | PUTBACK; |
|
|
3258 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
3259 | } |
|
|
3260 | |
|
|
3261 | /* now that the request is going, we loop till we have a result */ |
|
|
3262 | frame->data = (void *)state; |
|
|
3263 | frame->prepare = prepare_schedule; |
|
|
3264 | frame->check = slf_check_aio_req; |
|
|
3265 | } |
|
|
3266 | |
|
|
3267 | static void |
|
|
3268 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
3269 | { |
|
|
3270 | dXSARGS; |
|
|
3271 | |
|
|
3272 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
3273 | |
|
|
3274 | XSRETURN_EMPTY; |
|
|
3275 | } |
|
|
3276 | |
|
|
3277 | /*****************************************************************************/ |
|
|
3278 | |
|
|
3279 | #if CORO_CLONE |
|
|
3280 | # include "clone.c" |
|
|
3281 | #endif |
|
|
3282 | |
|
|
3283 | /*****************************************************************************/ |
|
|
3284 | |
|
|
3285 | static SV * |
|
|
3286 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
|
|
3287 | { |
|
|
3288 | SV *coro_sv; |
|
|
3289 | struct coro *coro; |
|
|
3290 | MAGIC *mg; |
|
|
3291 | HV *hv; |
|
|
3292 | SV *cb; |
|
|
3293 | int i; |
|
|
3294 | |
|
|
3295 | if (argc > 0) |
|
|
3296 | { |
|
|
3297 | cb = s_get_cv_croak (argv [0]); |
|
|
3298 | |
|
|
3299 | if (!is_coro) |
|
|
3300 | { |
|
|
3301 | if (CvISXSUB (cb)) |
|
|
3302 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3303 | |
|
|
3304 | if (!CvROOT (cb)) |
|
|
3305 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3306 | } |
|
|
3307 | } |
|
|
3308 | |
|
|
3309 | Newz (0, coro, 1, struct coro); |
|
|
3310 | coro->args = newAV (); |
|
|
3311 | coro->flags = CF_NEW; |
|
|
3312 | |
|
|
3313 | if (coro_first) coro_first->prev = coro; |
|
|
3314 | coro->next = coro_first; |
|
|
3315 | coro_first = coro; |
|
|
3316 | |
|
|
3317 | coro->hv = hv = newHV (); |
|
|
3318 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3319 | mg->mg_flags |= MGf_DUP; |
|
|
3320 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
|
|
3321 | |
|
|
3322 | if (argc > 0) |
|
|
3323 | { |
|
|
3324 | av_extend (coro->args, argc + is_coro - 1); |
|
|
3325 | |
|
|
3326 | if (is_coro) |
|
|
3327 | { |
|
|
3328 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3329 | cb = (SV *)cv_coro_run; |
|
|
3330 | } |
|
|
3331 | |
|
|
3332 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3333 | |
|
|
3334 | for (i = 1; i < argc; i++) |
|
|
3335 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3336 | } |
|
|
3337 | |
|
|
3338 | return coro_sv; |
|
|
3339 | } |
|
|
3340 | |
|
|
3341 | #ifndef __cplusplus |
|
|
3342 | ecb_cold XS(boot_Coro__State); |
|
|
3343 | #endif |
|
|
3344 | |
|
|
3345 | #if CORO_JIT |
|
|
3346 | |
|
|
3347 | static void ecb_noinline ecb_cold |
|
|
3348 | pushav_3uv (pTHX_ UV a, UV b, UV c) |
|
|
3349 | { |
|
|
3350 | dSP; |
|
|
3351 | AV *av = newAV (); |
|
|
3352 | |
|
|
3353 | av_store (av, 2, newSVuv (c)); |
|
|
3354 | av_store (av, 1, newSVuv (b)); |
|
|
3355 | av_store (av, 0, newSVuv (a)); |
|
|
3356 | |
|
|
3357 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
3358 | |
|
|
3359 | PUTBACK; |
|
|
3360 | } |
|
|
3361 | |
|
|
3362 | static void ecb_noinline ecb_cold |
|
|
3363 | jit_init (pTHX) |
|
|
3364 | { |
|
|
3365 | dSP; |
|
|
3366 | SV *load, *save; |
|
|
3367 | char *map_base; |
|
|
3368 | char *load_ptr, *save_ptr; |
|
|
3369 | STRLEN load_len, save_len, map_len; |
|
|
3370 | int count; |
|
|
3371 | |
|
|
3372 | eval_pv ("require 'Coro/jit-" CORO_JIT_TYPE ".pl'", 1); |
|
|
3373 | |
|
|
3374 | PUSHMARK (SP); |
|
|
3375 | #define VARx(name,expr,type) pushav_3uv (aTHX_ (UV)&(expr), offsetof (perl_slots, name), sizeof (type)); |
|
|
3376 | # include "state.h" |
|
|
3377 | #undef VARx |
|
|
3378 | count = call_pv ("Coro::State::_jit", G_ARRAY); |
|
|
3379 | SPAGAIN; |
|
|
3380 | |
|
|
3381 | save = POPs; save_ptr = SvPVbyte (save, save_len); |
|
|
3382 | load = POPs; load_ptr = SvPVbyte (load, load_len); |
|
|
3383 | |
|
|
3384 | map_len = load_len + save_len + 16; |
|
|
3385 | |
|
|
3386 | map_base = mmap (0, map_len, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); |
|
|
3387 | |
|
|
3388 | assert (("Coro: unable to mmap jit code page, cannot continue.", map_base != (char *)MAP_FAILED)); |
|
|
3389 | |
|
|
3390 | load_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3391 | memcpy (map_base, load_ptr, load_len); |
|
|
3392 | |
|
|
3393 | map_base += (load_len + 15) & ~15; |
|
|
3394 | |
|
|
3395 | save_perl_slots = (load_save_perl_slots_type)map_base; |
|
|
3396 | memcpy (map_base, save_ptr, save_len); |
|
|
3397 | |
|
|
3398 | /* we are good citizens and try to make the page read-only, so the evil evil */ |
|
|
3399 | /* hackers might have it a bit more difficult */ |
|
|
3400 | mprotect (map_base, map_len, PROT_READ | PROT_EXEC); |
|
|
3401 | |
|
|
3402 | PUTBACK; |
|
|
3403 | eval_pv ("undef &Coro::State::_jit", 1); |
|
|
3404 | } |
|
|
3405 | |
|
|
3406 | #endif |
1750 | |
3407 | |
1751 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3408 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1752 | |
3409 | |
1753 | PROTOTYPES: DISABLE |
3410 | PROTOTYPES: DISABLE |
1754 | |
3411 | |
1755 | BOOT: |
3412 | BOOT: |
1756 | { |
3413 | { |
1757 | #ifdef USE_ITHREADS |
3414 | #ifdef USE_ITHREADS |
1758 | MUTEX_INIT (&coro_lock); |
3415 | # if CORO_PTHREAD |
|
|
3416 | coro_thx = PERL_GET_CONTEXT; |
|
|
3417 | # endif |
1759 | #endif |
3418 | #endif |
1760 | BOOT_PAGESIZE; |
3419 | BOOT_PAGESIZE; |
|
|
3420 | |
|
|
3421 | /* perl defines these to check for existance first, but why it doesn't */ |
|
|
3422 | /* just create them one at init time is not clear to me, except for */ |
|
|
3423 | /* programs trying to delete them, but... */ |
|
|
3424 | /* anyway, we declare this as invalid and make sure they are initialised here */ |
|
|
3425 | DEFSV; |
|
|
3426 | ERRSV; |
|
|
3427 | |
|
|
3428 | cctx_current = cctx_new_empty (); |
1761 | |
3429 | |
1762 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3430 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1763 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3431 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1764 | |
3432 | |
1765 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
3433 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
… | |
… | |
1781 | main_top_env = PL_top_env; |
3449 | main_top_env = PL_top_env; |
1782 | |
3450 | |
1783 | while (main_top_env->je_prev) |
3451 | while (main_top_env->je_prev) |
1784 | main_top_env = main_top_env->je_prev; |
3452 | main_top_env = main_top_env->je_prev; |
1785 | |
3453 | |
1786 | coroapi.ver = CORO_API_VERSION; |
|
|
1787 | coroapi.rev = CORO_API_REVISION; |
|
|
1788 | coroapi.transfer = api_transfer; |
|
|
1789 | |
|
|
1790 | { |
3454 | { |
1791 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
3455 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
1792 | |
3456 | |
1793 | if (!svp) croak ("Time::HiRes is required"); |
3457 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
1794 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
3458 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
1795 | |
3459 | |
1796 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
3460 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3461 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
1797 | } |
3462 | } |
1798 | |
3463 | |
|
|
3464 | coroapi.ver = CORO_API_VERSION; |
|
|
3465 | coroapi.rev = CORO_API_REVISION; |
|
|
3466 | |
|
|
3467 | coroapi.transfer = api_transfer; |
|
|
3468 | |
|
|
3469 | coroapi.sv_state = SvSTATE_; |
|
|
3470 | coroapi.execute_slf = api_execute_slf; |
|
|
3471 | coroapi.prepare_nop = prepare_nop; |
|
|
3472 | coroapi.prepare_schedule = prepare_schedule; |
|
|
3473 | coroapi.prepare_cede = prepare_cede; |
|
|
3474 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
3475 | |
|
|
3476 | time_init (aTHX); |
|
|
3477 | |
1799 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3478 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
|
|
3479 | #if CORO_JIT |
|
|
3480 | PUTBACK; |
|
|
3481 | jit_init (aTHX); |
|
|
3482 | SPAGAIN; |
|
|
3483 | #endif |
1800 | } |
3484 | } |
1801 | |
3485 | |
1802 | SV * |
3486 | SV * |
1803 | new (char *klass, ...) |
3487 | new (SV *klass, ...) |
|
|
3488 | ALIAS: |
|
|
3489 | Coro::new = 1 |
1804 | CODE: |
3490 | CODE: |
1805 | { |
3491 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
1806 | struct coro *coro; |
|
|
1807 | MAGIC *mg; |
|
|
1808 | HV *hv; |
|
|
1809 | int i; |
|
|
1810 | |
|
|
1811 | Newz (0, coro, 1, struct coro); |
|
|
1812 | coro->args = newAV (); |
|
|
1813 | coro->flags = CF_NEW; |
|
|
1814 | |
|
|
1815 | if (coro_first) coro_first->prev = coro; |
|
|
1816 | coro->next = coro_first; |
|
|
1817 | coro_first = coro; |
|
|
1818 | |
|
|
1819 | coro->hv = hv = newHV (); |
|
|
1820 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
1821 | mg->mg_flags |= MGf_DUP; |
|
|
1822 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1823 | |
|
|
1824 | av_extend (coro->args, items - 1); |
|
|
1825 | for (i = 1; i < items; i++) |
|
|
1826 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1827 | } |
|
|
1828 | OUTPUT: |
|
|
1829 | RETVAL |
|
|
1830 | |
|
|
1831 | # these not obviously related functions are all rolled into the same xs |
|
|
1832 | # function to increase chances that they all will call transfer with the same |
|
|
1833 | # stack offset |
|
|
1834 | void |
|
|
1835 | _set_stacklevel (...) |
|
|
1836 | ALIAS: |
|
|
1837 | Coro::State::transfer = 1 |
|
|
1838 | Coro::schedule = 2 |
|
|
1839 | Coro::cede = 3 |
|
|
1840 | Coro::cede_notself = 4 |
|
|
1841 | CODE: |
|
|
1842 | { |
|
|
1843 | struct transfer_args ta; |
|
|
1844 | |
|
|
1845 | PUTBACK; |
|
|
1846 | switch (ix) |
|
|
1847 | { |
|
|
1848 | case 0: |
|
|
1849 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1850 | ta.next = 0; |
|
|
1851 | break; |
|
|
1852 | |
|
|
1853 | case 1: |
|
|
1854 | if (items != 2) |
|
|
1855 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items); |
|
|
1856 | |
|
|
1857 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1858 | break; |
|
|
1859 | |
|
|
1860 | case 2: |
|
|
1861 | prepare_schedule (aTHX_ &ta); |
|
|
1862 | break; |
|
|
1863 | |
|
|
1864 | case 3: |
|
|
1865 | prepare_cede (aTHX_ &ta); |
|
|
1866 | break; |
|
|
1867 | |
|
|
1868 | case 4: |
|
|
1869 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1870 | XSRETURN_EMPTY; |
|
|
1871 | |
|
|
1872 | break; |
|
|
1873 | } |
|
|
1874 | SPAGAIN; |
|
|
1875 | |
|
|
1876 | BARRIER; |
|
|
1877 | PUTBACK; |
|
|
1878 | TRANSFER (ta, 0); |
|
|
1879 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1880 | /* be extra careful not to ever do anything after TRANSFER */ |
|
|
1881 | } |
|
|
1882 | |
|
|
1883 | bool |
|
|
1884 | _destroy (SV *coro_sv) |
|
|
1885 | CODE: |
|
|
1886 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
1887 | OUTPUT: |
3492 | OUTPUT: |
1888 | RETVAL |
3493 | RETVAL |
|
|
3494 | |
|
|
3495 | void |
|
|
3496 | transfer (...) |
|
|
3497 | PROTOTYPE: $$ |
|
|
3498 | CODE: |
|
|
3499 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1889 | |
3500 | |
1890 | void |
3501 | void |
1891 | _exit (int code) |
3502 | _exit (int code) |
1892 | PROTOTYPE: $ |
3503 | PROTOTYPE: $ |
1893 | CODE: |
3504 | CODE: |
1894 | _exit (code); |
3505 | _exit (code); |
1895 | |
3506 | |
|
|
3507 | SV * |
|
|
3508 | clone (Coro::State coro) |
|
|
3509 | CODE: |
|
|
3510 | { |
|
|
3511 | #if CORO_CLONE |
|
|
3512 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3513 | MAGIC *mg; |
|
|
3514 | /* TODO: too much duplication */ |
|
|
3515 | ncoro->hv = newHV (); |
|
|
3516 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3517 | mg->mg_flags |= MGf_DUP; |
|
|
3518 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3519 | #else |
|
|
3520 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3521 | #endif |
|
|
3522 | } |
|
|
3523 | OUTPUT: |
|
|
3524 | RETVAL |
|
|
3525 | |
1896 | int |
3526 | int |
1897 | cctx_stacksize (int new_stacksize = 0) |
3527 | cctx_stacksize (int new_stacksize = 0) |
|
|
3528 | PROTOTYPE: ;$ |
1898 | CODE: |
3529 | CODE: |
1899 | RETVAL = cctx_stacksize; |
3530 | RETVAL = cctx_stacksize; |
1900 | if (new_stacksize) |
3531 | if (new_stacksize) |
1901 | { |
3532 | { |
1902 | cctx_stacksize = new_stacksize; |
3533 | cctx_stacksize = new_stacksize; |
… | |
… | |
1905 | OUTPUT: |
3536 | OUTPUT: |
1906 | RETVAL |
3537 | RETVAL |
1907 | |
3538 | |
1908 | int |
3539 | int |
1909 | cctx_max_idle (int max_idle = 0) |
3540 | cctx_max_idle (int max_idle = 0) |
|
|
3541 | PROTOTYPE: ;$ |
1910 | CODE: |
3542 | CODE: |
1911 | RETVAL = cctx_max_idle; |
3543 | RETVAL = cctx_max_idle; |
1912 | if (max_idle > 1) |
3544 | if (max_idle > 1) |
1913 | cctx_max_idle = max_idle; |
3545 | cctx_max_idle = max_idle; |
1914 | OUTPUT: |
3546 | OUTPUT: |
1915 | RETVAL |
3547 | RETVAL |
1916 | |
3548 | |
1917 | int |
3549 | int |
1918 | cctx_count () |
3550 | cctx_count () |
|
|
3551 | PROTOTYPE: |
1919 | CODE: |
3552 | CODE: |
1920 | RETVAL = cctx_count; |
3553 | RETVAL = cctx_count; |
1921 | OUTPUT: |
3554 | OUTPUT: |
1922 | RETVAL |
3555 | RETVAL |
1923 | |
3556 | |
1924 | int |
3557 | int |
1925 | cctx_idle () |
3558 | cctx_idle () |
|
|
3559 | PROTOTYPE: |
1926 | CODE: |
3560 | CODE: |
1927 | RETVAL = cctx_idle; |
3561 | RETVAL = cctx_idle; |
1928 | OUTPUT: |
3562 | OUTPUT: |
1929 | RETVAL |
3563 | RETVAL |
1930 | |
3564 | |
1931 | void |
3565 | void |
1932 | list () |
3566 | list () |
|
|
3567 | PROTOTYPE: |
1933 | PPCODE: |
3568 | PPCODE: |
1934 | { |
3569 | { |
1935 | struct coro *coro; |
3570 | struct coro *coro; |
1936 | for (coro = coro_first; coro; coro = coro->next) |
3571 | for (coro = coro_first; coro; coro = coro->next) |
1937 | if (coro->hv) |
3572 | if (coro->hv) |
… | |
… | |
1944 | eval = 1 |
3579 | eval = 1 |
1945 | CODE: |
3580 | CODE: |
1946 | { |
3581 | { |
1947 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
3582 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1948 | { |
3583 | { |
1949 | struct coro temp; |
3584 | struct coro *current = SvSTATE_current; |
|
|
3585 | struct CoroSLF slf_save; |
1950 | |
3586 | |
1951 | if (!(coro->flags & CF_RUNNING)) |
3587 | if (current != coro) |
1952 | { |
3588 | { |
1953 | PUTBACK; |
3589 | PUTBACK; |
1954 | save_perl (aTHX_ &temp); |
3590 | save_perl (aTHX_ current); |
1955 | load_perl (aTHX_ coro); |
3591 | load_perl (aTHX_ coro); |
|
|
3592 | /* the coro is most likely in an active SLF call. |
|
|
3593 | * while not strictly required (the code we execute is |
|
|
3594 | * not allowed to call any SLF functions), it's cleaner |
|
|
3595 | * to reinitialise the slf_frame and restore it later. |
|
|
3596 | * This might one day allow us to actually do SLF calls |
|
|
3597 | * from code executed here. |
|
|
3598 | */ |
|
|
3599 | slf_save = slf_frame; |
|
|
3600 | slf_frame.prepare = 0; |
|
|
3601 | SPAGAIN; |
1956 | } |
3602 | } |
1957 | |
3603 | |
1958 | { |
|
|
1959 | dSP; |
|
|
1960 | ENTER; |
|
|
1961 | SAVETMPS; |
|
|
1962 | PUTBACK; |
|
|
1963 | PUSHSTACK; |
3604 | PUSHSTACK; |
|
|
3605 | |
1964 | PUSHMARK (SP); |
3606 | PUSHMARK (SP); |
|
|
3607 | PUTBACK; |
1965 | |
3608 | |
1966 | if (ix) |
3609 | if (ix) |
1967 | eval_sv (coderef, 0); |
3610 | eval_sv (coderef, 0); |
1968 | else |
3611 | else |
1969 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3612 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1970 | |
3613 | |
1971 | POPSTACK; |
3614 | POPSTACK; |
1972 | SPAGAIN; |
3615 | SPAGAIN; |
1973 | FREETMPS; |
|
|
1974 | LEAVE; |
|
|
1975 | PUTBACK; |
|
|
1976 | } |
|
|
1977 | |
3616 | |
1978 | if (!(coro->flags & CF_RUNNING)) |
3617 | if (current != coro) |
1979 | { |
3618 | { |
|
|
3619 | PUTBACK; |
|
|
3620 | slf_frame = slf_save; |
1980 | save_perl (aTHX_ coro); |
3621 | save_perl (aTHX_ coro); |
1981 | load_perl (aTHX_ &temp); |
3622 | load_perl (aTHX_ current); |
1982 | SPAGAIN; |
3623 | SPAGAIN; |
1983 | } |
3624 | } |
1984 | } |
3625 | } |
1985 | } |
3626 | } |
1986 | |
3627 | |
… | |
… | |
1989 | PROTOTYPE: $ |
3630 | PROTOTYPE: $ |
1990 | ALIAS: |
3631 | ALIAS: |
1991 | is_ready = CF_READY |
3632 | is_ready = CF_READY |
1992 | is_running = CF_RUNNING |
3633 | is_running = CF_RUNNING |
1993 | is_new = CF_NEW |
3634 | is_new = CF_NEW |
1994 | is_destroyed = CF_DESTROYED |
3635 | is_destroyed = CF_ZOMBIE |
|
|
3636 | is_zombie = CF_ZOMBIE |
|
|
3637 | is_suspended = CF_SUSPENDED |
1995 | CODE: |
3638 | CODE: |
1996 | RETVAL = boolSV (coro->flags & ix); |
3639 | RETVAL = boolSV (coro->flags & ix); |
1997 | OUTPUT: |
3640 | OUTPUT: |
1998 | RETVAL |
3641 | RETVAL |
1999 | |
3642 | |
2000 | void |
3643 | void |
|
|
3644 | throw (Coro::State self, SV *exception = &PL_sv_undef) |
|
|
3645 | PROTOTYPE: $;$ |
|
|
3646 | CODE: |
|
|
3647 | { |
|
|
3648 | struct coro *current = SvSTATE_current; |
|
|
3649 | SV **exceptionp = self == current ? &CORO_THROW : &self->except; |
|
|
3650 | SvREFCNT_dec (*exceptionp); |
|
|
3651 | SvGETMAGIC (exception); |
|
|
3652 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3653 | } |
|
|
3654 | |
|
|
3655 | void |
2001 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3656 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3657 | PROTOTYPE: $;$ |
|
|
3658 | C_ARGS: aTHX_ coro, flags |
2002 | |
3659 | |
2003 | SV * |
3660 | SV * |
2004 | has_cctx (Coro::State coro) |
3661 | has_cctx (Coro::State coro) |
2005 | PROTOTYPE: $ |
3662 | PROTOTYPE: $ |
2006 | CODE: |
3663 | CODE: |
2007 | RETVAL = boolSV (!!coro->cctx); |
3664 | /* maybe manage the running flag differently */ |
|
|
3665 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
2008 | OUTPUT: |
3666 | OUTPUT: |
2009 | RETVAL |
3667 | RETVAL |
2010 | |
3668 | |
2011 | int |
3669 | int |
2012 | is_traced (Coro::State coro) |
3670 | is_traced (Coro::State coro) |
… | |
… | |
2030 | OUTPUT: |
3688 | OUTPUT: |
2031 | RETVAL |
3689 | RETVAL |
2032 | |
3690 | |
2033 | void |
3691 | void |
2034 | force_cctx () |
3692 | force_cctx () |
|
|
3693 | PROTOTYPE: |
2035 | CODE: |
3694 | CODE: |
2036 | struct coro *coro = SvSTATE (coro_current); |
|
|
2037 | coro->cctx->idle_sp = 0; |
3695 | cctx_current->idle_sp = 0; |
2038 | |
3696 | |
2039 | void |
3697 | void |
2040 | swap_defsv (Coro::State self) |
3698 | swap_defsv (Coro::State self) |
2041 | PROTOTYPE: $ |
3699 | PROTOTYPE: $ |
2042 | ALIAS: |
3700 | ALIAS: |
2043 | swap_defav = 1 |
3701 | swap_defav = 1 |
2044 | CODE: |
3702 | CODE: |
2045 | if (!self->slot) |
3703 | if (!self->slot) |
2046 | croak ("cannot swap state with coroutine that has no saved state"); |
3704 | croak ("cannot swap state with coroutine that has no saved state,"); |
2047 | else |
3705 | else |
2048 | { |
3706 | { |
2049 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
3707 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2050 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3708 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2051 | |
3709 | |
2052 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3710 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2053 | } |
3711 | } |
2054 | |
3712 | |
|
|
3713 | void |
|
|
3714 | cancel (Coro::State self) |
|
|
3715 | CODE: |
|
|
3716 | coro_state_destroy (aTHX_ self); |
|
|
3717 | |
|
|
3718 | SV * |
|
|
3719 | enable_times (int enabled = enable_times) |
|
|
3720 | CODE: |
|
|
3721 | { |
|
|
3722 | RETVAL = boolSV (enable_times); |
|
|
3723 | |
|
|
3724 | if (enabled != enable_times) |
|
|
3725 | { |
|
|
3726 | enable_times = enabled; |
|
|
3727 | |
|
|
3728 | coro_times_update (); |
|
|
3729 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3730 | } |
|
|
3731 | } |
|
|
3732 | OUTPUT: |
|
|
3733 | RETVAL |
|
|
3734 | |
|
|
3735 | void |
|
|
3736 | times (Coro::State self) |
|
|
3737 | PPCODE: |
|
|
3738 | { |
|
|
3739 | struct coro *current = SvSTATE (coro_current); |
|
|
3740 | |
|
|
3741 | if (ecb_expect_false (current == self)) |
|
|
3742 | { |
|
|
3743 | coro_times_update (); |
|
|
3744 | coro_times_add (SvSTATE (coro_current)); |
|
|
3745 | } |
|
|
3746 | |
|
|
3747 | EXTEND (SP, 2); |
|
|
3748 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3749 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3750 | |
|
|
3751 | if (ecb_expect_false (current == self)) |
|
|
3752 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3753 | } |
|
|
3754 | |
|
|
3755 | void |
|
|
3756 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
|
|
3757 | CODE: |
|
|
3758 | { |
|
|
3759 | struct coro *current = SvSTATE_current; |
|
|
3760 | |
|
|
3761 | if (current == coro) |
|
|
3762 | SWAP_SVS (current); |
|
|
3763 | |
|
|
3764 | if (!coro->swap_sv) |
|
|
3765 | coro->swap_sv = newAV (); |
|
|
3766 | |
|
|
3767 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv ))); |
|
|
3768 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv))); |
|
|
3769 | |
|
|
3770 | if (current == coro) |
|
|
3771 | SWAP_SVS (current); |
|
|
3772 | } |
|
|
3773 | |
|
|
3774 | |
2055 | MODULE = Coro::State PACKAGE = Coro |
3775 | MODULE = Coro::State PACKAGE = Coro |
2056 | |
3776 | |
2057 | BOOT: |
3777 | BOOT: |
2058 | { |
3778 | { |
2059 | int i; |
|
|
2060 | |
|
|
2061 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2062 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3779 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2063 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3780 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2064 | |
3781 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
2065 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3782 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2066 | SvREADONLY_on (coro_current); |
3783 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3784 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3785 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3786 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
2067 | |
3787 | |
|
|
3788 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3789 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3790 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3791 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
|
|
3792 | |
2068 | coro_stash = gv_stashpv ("Coro", TRUE); |
3793 | coro_stash = gv_stashpv ("Coro", TRUE); |
2069 | |
3794 | |
2070 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3795 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
2071 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3796 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
2072 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3797 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
2073 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3798 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
2074 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3799 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
2075 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3800 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
2076 | |
|
|
2077 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
2078 | coro_ready[i] = newAV (); |
|
|
2079 | |
3801 | |
2080 | { |
3802 | { |
2081 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
3803 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2082 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
2083 | |
3804 | |
2084 | coroapi.schedule = api_schedule; |
3805 | coroapi.schedule = api_schedule; |
|
|
3806 | coroapi.schedule_to = api_schedule_to; |
2085 | coroapi.cede = api_cede; |
3807 | coroapi.cede = api_cede; |
2086 | coroapi.cede_notself = api_cede_notself; |
3808 | coroapi.cede_notself = api_cede_notself; |
2087 | coroapi.ready = api_ready; |
3809 | coroapi.ready = api_ready; |
2088 | coroapi.is_ready = api_is_ready; |
3810 | coroapi.is_ready = api_is_ready; |
2089 | coroapi.nready = &coro_nready; |
3811 | coroapi.nready = coro_nready; |
2090 | coroapi.current = coro_current; |
3812 | coroapi.current = coro_current; |
2091 | |
3813 | |
2092 | GCoroAPI = &coroapi; |
3814 | /*GCoroAPI = &coroapi;*/ |
2093 | sv_setiv (sv, (IV)&coroapi); |
3815 | sv_setiv (sv, (IV)&coroapi); |
2094 | SvREADONLY_on (sv); |
3816 | SvREADONLY_on (sv); |
2095 | } |
3817 | } |
2096 | } |
3818 | } |
|
|
3819 | |
|
|
3820 | SV * |
|
|
3821 | async (...) |
|
|
3822 | PROTOTYPE: &@ |
|
|
3823 | CODE: |
|
|
3824 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
3825 | api_ready (aTHX_ RETVAL); |
|
|
3826 | OUTPUT: |
|
|
3827 | RETVAL |
|
|
3828 | |
|
|
3829 | void |
|
|
3830 | _destroy (Coro::State coro) |
|
|
3831 | CODE: |
|
|
3832 | /* used by the manager thread */ |
|
|
3833 | coro_state_destroy (aTHX_ coro); |
|
|
3834 | |
|
|
3835 | void |
|
|
3836 | on_destroy (Coro::State coro, SV *cb) |
|
|
3837 | CODE: |
|
|
3838 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
3839 | |
|
|
3840 | void |
|
|
3841 | join (...) |
|
|
3842 | CODE: |
|
|
3843 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
3844 | |
|
|
3845 | void |
|
|
3846 | terminate (...) |
|
|
3847 | CODE: |
|
|
3848 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3849 | |
|
|
3850 | void |
|
|
3851 | cancel (...) |
|
|
3852 | CODE: |
|
|
3853 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
3854 | |
|
|
3855 | int |
|
|
3856 | safe_cancel (Coro::State self, ...) |
|
|
3857 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
|
|
3858 | |
|
|
3859 | void |
|
|
3860 | schedule (...) |
|
|
3861 | CODE: |
|
|
3862 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3863 | |
|
|
3864 | void |
|
|
3865 | schedule_to (...) |
|
|
3866 | CODE: |
|
|
3867 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3868 | |
|
|
3869 | void |
|
|
3870 | cede_to (...) |
|
|
3871 | CODE: |
|
|
3872 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3873 | |
|
|
3874 | void |
|
|
3875 | cede (...) |
|
|
3876 | CODE: |
|
|
3877 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3878 | |
|
|
3879 | void |
|
|
3880 | cede_notself (...) |
|
|
3881 | CODE: |
|
|
3882 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2097 | |
3883 | |
2098 | void |
3884 | void |
2099 | _set_current (SV *current) |
3885 | _set_current (SV *current) |
2100 | PROTOTYPE: $ |
3886 | PROTOTYPE: $ |
2101 | CODE: |
3887 | CODE: |
… | |
… | |
2104 | |
3890 | |
2105 | void |
3891 | void |
2106 | _set_readyhook (SV *hook) |
3892 | _set_readyhook (SV *hook) |
2107 | PROTOTYPE: $ |
3893 | PROTOTYPE: $ |
2108 | CODE: |
3894 | CODE: |
2109 | LOCK; |
|
|
2110 | SvREFCNT_dec (coro_readyhook); |
3895 | SvREFCNT_dec (coro_readyhook); |
|
|
3896 | SvGETMAGIC (hook); |
|
|
3897 | if (SvOK (hook)) |
|
|
3898 | { |
2111 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
3899 | coro_readyhook = newSVsv (hook); |
2112 | UNLOCK; |
3900 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
3901 | } |
|
|
3902 | else |
|
|
3903 | { |
|
|
3904 | coro_readyhook = 0; |
|
|
3905 | CORO_READYHOOK = 0; |
|
|
3906 | } |
2113 | |
3907 | |
2114 | int |
3908 | int |
2115 | prio (Coro::State coro, int newprio = 0) |
3909 | prio (Coro::State coro, int newprio = 0) |
|
|
3910 | PROTOTYPE: $;$ |
2116 | ALIAS: |
3911 | ALIAS: |
2117 | nice = 1 |
3912 | nice = 1 |
2118 | CODE: |
3913 | CODE: |
2119 | { |
3914 | { |
2120 | RETVAL = coro->prio; |
3915 | RETVAL = coro->prio; |
… | |
… | |
2122 | if (items > 1) |
3917 | if (items > 1) |
2123 | { |
3918 | { |
2124 | if (ix) |
3919 | if (ix) |
2125 | newprio = coro->prio - newprio; |
3920 | newprio = coro->prio - newprio; |
2126 | |
3921 | |
2127 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
3922 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
2128 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
3923 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
2129 | |
3924 | |
2130 | coro->prio = newprio; |
3925 | coro->prio = newprio; |
2131 | } |
3926 | } |
2132 | } |
3927 | } |
2133 | OUTPUT: |
3928 | OUTPUT: |
… | |
… | |
2135 | |
3930 | |
2136 | SV * |
3931 | SV * |
2137 | ready (SV *self) |
3932 | ready (SV *self) |
2138 | PROTOTYPE: $ |
3933 | PROTOTYPE: $ |
2139 | CODE: |
3934 | CODE: |
2140 | RETVAL = boolSV (api_ready (self)); |
3935 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2141 | OUTPUT: |
3936 | OUTPUT: |
2142 | RETVAL |
3937 | RETVAL |
2143 | |
3938 | |
2144 | int |
3939 | int |
2145 | nready (...) |
3940 | nready (...) |
… | |
… | |
2148 | RETVAL = coro_nready; |
3943 | RETVAL = coro_nready; |
2149 | OUTPUT: |
3944 | OUTPUT: |
2150 | RETVAL |
3945 | RETVAL |
2151 | |
3946 | |
2152 | void |
3947 | void |
2153 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3948 | suspend (Coro::State self) |
2154 | PROTOTYPE: $;$ |
3949 | PROTOTYPE: $ |
2155 | CODE: |
3950 | CODE: |
2156 | SvREFCNT_dec (self->throw); |
3951 | self->flags |= CF_SUSPENDED; |
2157 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2158 | |
3952 | |
2159 | # for async_pool speedup |
|
|
2160 | void |
3953 | void |
2161 | _pool_1 (SV *cb) |
3954 | resume (Coro::State self) |
|
|
3955 | PROTOTYPE: $ |
2162 | CODE: |
3956 | CODE: |
2163 | { |
3957 | self->flags &= ~CF_SUSPENDED; |
2164 | struct coro *coro = SvSTATE (coro_current); |
|
|
2165 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2166 | AV *defav = GvAV (PL_defgv); |
|
|
2167 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2168 | AV *invoke_av; |
|
|
2169 | int i, len; |
|
|
2170 | |
3958 | |
2171 | if (!invoke) |
3959 | void |
|
|
3960 | _pool_handler (...) |
|
|
3961 | CODE: |
|
|
3962 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
3963 | |
|
|
3964 | void |
|
|
3965 | async_pool (SV *cv, ...) |
|
|
3966 | PROTOTYPE: &@ |
|
|
3967 | PPCODE: |
|
|
3968 | { |
|
|
3969 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3970 | AV *av = newAV (); |
|
|
3971 | SV *cb = ST (0); |
|
|
3972 | int i; |
|
|
3973 | |
|
|
3974 | av_extend (av, items - 2); |
|
|
3975 | for (i = 1; i < items; ++i) |
|
|
3976 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
3977 | |
|
|
3978 | if ((SV *)hv == &PL_sv_undef) |
2172 | { |
3979 | { |
2173 | SV *old = PL_diehook; |
3980 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
2174 | PL_diehook = 0; |
3981 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
2175 | SvREFCNT_dec (old); |
3982 | SvREFCNT_dec (sv); |
2176 | croak ("\3async_pool terminate\2\n"); |
|
|
2177 | } |
3983 | } |
2178 | |
3984 | |
2179 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2180 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2181 | |
|
|
2182 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2183 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2184 | |
|
|
2185 | invoke_av = (AV *)SvRV (invoke); |
|
|
2186 | len = av_len (invoke_av); |
|
|
2187 | |
|
|
2188 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2189 | |
|
|
2190 | if (len > 0) |
|
|
2191 | { |
3985 | { |
2192 | av_fill (defav, len - 1); |
3986 | struct coro *coro = SvSTATE_hv (hv); |
2193 | for (i = 0; i < len; ++i) |
3987 | |
2194 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
3988 | assert (!coro->invoke_cb); |
|
|
3989 | assert (!coro->invoke_av); |
|
|
3990 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3991 | coro->invoke_av = av; |
2195 | } |
3992 | } |
2196 | |
3993 | |
|
|
3994 | api_ready (aTHX_ (SV *)hv); |
|
|
3995 | |
|
|
3996 | if (GIMME_V != G_VOID) |
|
|
3997 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3998 | else |
2197 | SvREFCNT_dec (invoke); |
3999 | SvREFCNT_dec (hv); |
2198 | } |
4000 | } |
2199 | |
4001 | |
2200 | void |
4002 | SV * |
2201 | _pool_2 (SV *cb) |
4003 | rouse_cb () |
|
|
4004 | PROTOTYPE: |
2202 | CODE: |
4005 | CODE: |
2203 | { |
4006 | RETVAL = coro_new_rouse_cb (aTHX); |
2204 | struct coro *coro = SvSTATE (coro_current); |
|
|
2205 | |
|
|
2206 | sv_setsv (cb, &PL_sv_undef); |
|
|
2207 | |
|
|
2208 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2209 | coro->saved_deffh = 0; |
|
|
2210 | |
|
|
2211 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2212 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2213 | { |
|
|
2214 | SV *old = PL_diehook; |
|
|
2215 | PL_diehook = 0; |
|
|
2216 | SvREFCNT_dec (old); |
|
|
2217 | croak ("\3async_pool terminate\2\n"); |
|
|
2218 | } |
|
|
2219 | |
|
|
2220 | av_clear (GvAV (PL_defgv)); |
|
|
2221 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2222 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2223 | |
|
|
2224 | coro->prio = 0; |
|
|
2225 | |
|
|
2226 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2227 | api_trace (coro_current, 0); |
|
|
2228 | |
|
|
2229 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2230 | } |
|
|
2231 | |
|
|
2232 | #if 0 |
|
|
2233 | |
|
|
2234 | void |
|
|
2235 | _generator_call (...) |
|
|
2236 | PROTOTYPE: @ |
|
|
2237 | PPCODE: |
|
|
2238 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2239 | xxxx |
|
|
2240 | abort (); |
|
|
2241 | |
|
|
2242 | SV * |
|
|
2243 | gensub (SV *sub, ...) |
|
|
2244 | PROTOTYPE: &;@ |
|
|
2245 | CODE: |
|
|
2246 | { |
|
|
2247 | struct coro *coro; |
|
|
2248 | MAGIC *mg; |
|
|
2249 | CV *xcv; |
|
|
2250 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2251 | int i; |
|
|
2252 | |
|
|
2253 | CvGV (ncv) = CvGV (cv); |
|
|
2254 | CvFILE (ncv) = CvFILE (cv); |
|
|
2255 | |
|
|
2256 | Newz (0, coro, 1, struct coro); |
|
|
2257 | coro->args = newAV (); |
|
|
2258 | coro->flags = CF_NEW; |
|
|
2259 | |
|
|
2260 | av_extend (coro->args, items - 1); |
|
|
2261 | for (i = 1; i < items; i++) |
|
|
2262 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2263 | |
|
|
2264 | CvISXSUB_on (ncv); |
|
|
2265 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2266 | |
|
|
2267 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2268 | |
|
|
2269 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2270 | CvANON_on (ncv); |
|
|
2271 | |
|
|
2272 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2273 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2274 | } |
|
|
2275 | OUTPUT: |
4007 | OUTPUT: |
2276 | RETVAL |
4008 | RETVAL |
2277 | |
4009 | |
2278 | #endif |
|
|
2279 | |
|
|
2280 | |
|
|
2281 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2282 | |
|
|
2283 | void |
4010 | void |
2284 | _get_state (SV *self) |
4011 | rouse_wait (...) |
|
|
4012 | PROTOTYPE: ;$ |
2285 | PPCODE: |
4013 | PPCODE: |
2286 | { |
4014 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
2287 | AV *defav = GvAV (PL_defgv); |
|
|
2288 | AV *av = newAV (); |
|
|
2289 | int i; |
|
|
2290 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2291 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2292 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2293 | SvPOK_only (data_sv); |
|
|
2294 | |
|
|
2295 | data->errorno = errno; |
|
|
2296 | data->laststype = PL_laststype; |
|
|
2297 | data->laststatval = PL_laststatval; |
|
|
2298 | data->statcache = PL_statcache; |
|
|
2299 | |
|
|
2300 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2301 | |
|
|
2302 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2303 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2304 | |
|
|
2305 | av_push (av, data_sv); |
|
|
2306 | |
|
|
2307 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2308 | |
|
|
2309 | api_ready (self); |
|
|
2310 | } |
|
|
2311 | |
4015 | |
2312 | void |
4016 | void |
2313 | _set_state (SV *state) |
4017 | on_enter (SV *block) |
|
|
4018 | ALIAS: |
|
|
4019 | on_leave = 1 |
2314 | PROTOTYPE: $ |
4020 | PROTOTYPE: & |
|
|
4021 | CODE: |
|
|
4022 | { |
|
|
4023 | struct coro *coro = SvSTATE_current; |
|
|
4024 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
|
|
4025 | |
|
|
4026 | block = s_get_cv_croak (block); |
|
|
4027 | |
|
|
4028 | if (!*avp) |
|
|
4029 | *avp = newAV (); |
|
|
4030 | |
|
|
4031 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
4032 | |
|
|
4033 | if (!ix) |
|
|
4034 | on_enterleave_call (aTHX_ block); |
|
|
4035 | |
|
|
4036 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4037 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
4038 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
4039 | } |
|
|
4040 | |
|
|
4041 | |
|
|
4042 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
4043 | |
|
|
4044 | BOOT: |
|
|
4045 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
4046 | |
|
|
4047 | |
|
|
4048 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
4049 | |
|
|
4050 | SV * |
|
|
4051 | new (SV *klass, SV *count = 0) |
|
|
4052 | CODE: |
|
|
4053 | { |
|
|
4054 | int semcnt = 1; |
|
|
4055 | |
|
|
4056 | if (count) |
|
|
4057 | { |
|
|
4058 | SvGETMAGIC (count); |
|
|
4059 | |
|
|
4060 | if (SvOK (count)) |
|
|
4061 | semcnt = SvIV (count); |
|
|
4062 | } |
|
|
4063 | |
|
|
4064 | RETVAL = sv_bless ( |
|
|
4065 | coro_waitarray_new (aTHX_ semcnt), |
|
|
4066 | GvSTASH (CvGV (cv)) |
|
|
4067 | ); |
|
|
4068 | } |
|
|
4069 | OUTPUT: |
|
|
4070 | RETVAL |
|
|
4071 | |
|
|
4072 | # helper for Coro::Channel and others |
|
|
4073 | SV * |
|
|
4074 | _alloc (int count) |
|
|
4075 | CODE: |
|
|
4076 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
4077 | OUTPUT: |
|
|
4078 | RETVAL |
|
|
4079 | |
|
|
4080 | SV * |
|
|
4081 | count (SV *self) |
|
|
4082 | CODE: |
|
|
4083 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
4084 | OUTPUT: |
|
|
4085 | RETVAL |
|
|
4086 | |
|
|
4087 | void |
|
|
4088 | up (SV *self, int adjust = 1) |
|
|
4089 | ALIAS: |
|
|
4090 | adjust = 1 |
|
|
4091 | CODE: |
|
|
4092 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
4093 | |
|
|
4094 | void |
|
|
4095 | down (...) |
|
|
4096 | CODE: |
|
|
4097 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
4098 | |
|
|
4099 | void |
|
|
4100 | wait (...) |
|
|
4101 | CODE: |
|
|
4102 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
4103 | |
|
|
4104 | void |
|
|
4105 | try (SV *self) |
|
|
4106 | PPCODE: |
|
|
4107 | { |
|
|
4108 | AV *av = (AV *)SvRV (self); |
|
|
4109 | SV *count_sv = AvARRAY (av)[0]; |
|
|
4110 | IV count = SvIVX (count_sv); |
|
|
4111 | |
|
|
4112 | if (count > 0) |
|
|
4113 | { |
|
|
4114 | --count; |
|
|
4115 | SvIVX (count_sv) = count; |
|
|
4116 | XSRETURN_YES; |
|
|
4117 | } |
|
|
4118 | else |
|
|
4119 | XSRETURN_NO; |
|
|
4120 | } |
|
|
4121 | |
|
|
4122 | void |
|
|
4123 | waiters (SV *self) |
|
|
4124 | PPCODE: |
|
|
4125 | { |
|
|
4126 | AV *av = (AV *)SvRV (self); |
|
|
4127 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
4128 | |
|
|
4129 | if (GIMME_V == G_SCALAR) |
|
|
4130 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
4131 | else |
|
|
4132 | { |
|
|
4133 | int i; |
|
|
4134 | EXTEND (SP, wcount); |
|
|
4135 | for (i = 1; i <= wcount; ++i) |
|
|
4136 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
4137 | } |
|
|
4138 | } |
|
|
4139 | |
|
|
4140 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
4141 | |
|
|
4142 | void |
|
|
4143 | _may_delete (SV *sem, int count, int extra_refs) |
2315 | PPCODE: |
4144 | PPCODE: |
2316 | { |
4145 | { |
2317 | AV *av = (AV *)SvRV (state); |
4146 | AV *av = (AV *)SvRV (sem); |
2318 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2319 | int i; |
|
|
2320 | |
4147 | |
2321 | errno = data->errorno; |
4148 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
2322 | PL_laststype = data->laststype; |
4149 | && AvFILLp (av) == 0 /* no waiters, just count */ |
2323 | PL_laststatval = data->laststatval; |
4150 | && SvIV (AvARRAY (av)[0]) == count) |
2324 | PL_statcache = data->statcache; |
4151 | XSRETURN_YES; |
2325 | |
4152 | |
|
|
4153 | XSRETURN_NO; |
|
|
4154 | } |
|
|
4155 | |
|
|
4156 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
4157 | |
|
|
4158 | SV * |
|
|
4159 | new (SV *klass) |
|
|
4160 | CODE: |
|
|
4161 | RETVAL = sv_bless ( |
|
|
4162 | coro_waitarray_new (aTHX_ 0), |
|
|
4163 | GvSTASH (CvGV (cv)) |
|
|
4164 | ); |
|
|
4165 | OUTPUT: |
|
|
4166 | RETVAL |
|
|
4167 | |
|
|
4168 | void |
|
|
4169 | wait (...) |
|
|
4170 | CODE: |
|
|
4171 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
4172 | |
|
|
4173 | void |
|
|
4174 | broadcast (SV *self) |
|
|
4175 | CODE: |
|
|
4176 | { |
|
|
4177 | AV *av = (AV *)SvRV (self); |
|
|
4178 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
4179 | } |
|
|
4180 | |
|
|
4181 | void |
|
|
4182 | send (SV *self) |
|
|
4183 | CODE: |
|
|
4184 | { |
|
|
4185 | AV *av = (AV *)SvRV (self); |
|
|
4186 | |
2326 | EXTEND (SP, AvFILLp (av)); |
4187 | if (AvFILLp (av)) |
2327 | for (i = 0; i < AvFILLp (av); ++i) |
4188 | coro_signal_wake (aTHX_ av, 1); |
2328 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
4189 | else |
|
|
4190 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
2329 | } |
4191 | } |
|
|
4192 | |
|
|
4193 | IV |
|
|
4194 | awaited (SV *self) |
|
|
4195 | CODE: |
|
|
4196 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
4197 | OUTPUT: |
|
|
4198 | RETVAL |
2330 | |
4199 | |
2331 | |
4200 | |
2332 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
4201 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2333 | |
4202 | |
2334 | BOOT: |
4203 | BOOT: |
2335 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
4204 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2336 | |
4205 | |
2337 | SV * |
4206 | void |
2338 | _schedule (...) |
4207 | _schedule (...) |
2339 | PROTOTYPE: @ |
|
|
2340 | CODE: |
4208 | CODE: |
2341 | { |
4209 | { |
2342 | static int incede; |
4210 | static int incede; |
2343 | |
4211 | |
2344 | api_cede_notself (); |
4212 | api_cede_notself (aTHX); |
2345 | |
4213 | |
2346 | ++incede; |
4214 | ++incede; |
2347 | while (coro_nready >= incede && api_cede ()) |
4215 | while (coro_nready >= incede && api_cede (aTHX)) |
2348 | ; |
4216 | ; |
2349 | |
4217 | |
2350 | sv_setsv (sv_activity, &PL_sv_undef); |
4218 | sv_setsv (sv_activity, &PL_sv_undef); |
2351 | if (coro_nready >= incede) |
4219 | if (coro_nready >= incede) |
2352 | { |
4220 | { |
2353 | PUSHMARK (SP); |
4221 | PUSHMARK (SP); |
2354 | PUTBACK; |
4222 | PUTBACK; |
2355 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
4223 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2356 | SPAGAIN; |
|
|
2357 | } |
4224 | } |
2358 | |
4225 | |
2359 | --incede; |
4226 | --incede; |
2360 | } |
4227 | } |
2361 | |
4228 | |
2362 | |
4229 | |
2363 | MODULE = Coro::State PACKAGE = PerlIO::cede |
4230 | MODULE = Coro::State PACKAGE = Coro::AIO |
2364 | |
4231 | |
2365 | BOOT: |
4232 | void |
2366 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
4233 | _register (char *target, char *proto, SV *req) |
|
|
4234 | CODE: |
|
|
4235 | { |
|
|
4236 | SV *req_cv = s_get_cv_croak (req); |
|
|
4237 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
4238 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
4239 | sv_setpv ((SV *)slf_cv, proto); |
|
|
4240 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
4241 | } |
|
|
4242 | |
|
|
4243 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
4244 | |
|
|
4245 | void |
|
|
4246 | patch_pp_sselect () |
|
|
4247 | CODE: |
|
|
4248 | if (!coro_old_pp_sselect) |
|
|
4249 | { |
|
|
4250 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
4251 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
4252 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
4253 | } |
|
|
4254 | |
|
|
4255 | void |
|
|
4256 | unpatch_pp_sselect () |
|
|
4257 | CODE: |
|
|
4258 | if (coro_old_pp_sselect) |
|
|
4259 | { |
|
|
4260 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
4261 | coro_old_pp_sselect = 0; |
|
|
4262 | } |
|
|
4263 | |