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1 | #define NDEBUG 1 |
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2 | |
1 | #include "libcoro/coro.c" |
3 | #include "libcoro/coro.c" |
2 | |
4 | |
3 | #define PERL_NO_GET_CONTEXT |
5 | #define PERL_NO_GET_CONTEXT |
4 | #define PERL_EXT |
6 | #define PERL_EXT |
5 | |
7 | |
6 | #include "EXTERN.h" |
8 | #include "EXTERN.h" |
7 | #include "perl.h" |
9 | #include "perl.h" |
8 | #include "XSUB.h" |
10 | #include "XSUB.h" |
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11 | #include "perliol.h" |
9 | |
12 | |
10 | #include "patchlevel.h" |
13 | #include "schmorp.h" |
11 | |
14 | |
12 | #include <stdio.h> |
15 | #include <stdio.h> |
13 | #include <errno.h> |
16 | #include <errno.h> |
14 | #include <assert.h> |
17 | #include <assert.h> |
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18 | |
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19 | #ifndef SVs_PADSTALE |
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20 | # define SVs_PADSTALE 0 |
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21 | #endif |
15 | |
22 | |
16 | #ifdef WIN32 |
23 | #ifdef WIN32 |
17 | # undef setjmp |
24 | # undef setjmp |
18 | # undef longjmp |
25 | # undef longjmp |
19 | # undef _exit |
26 | # undef _exit |
20 | # define setjmp _setjmp // deep magic, don't ask |
27 | # define setjmp _setjmp /* deep magic */ |
21 | #else |
28 | #else |
22 | # include <inttypes.h> /* most portable stdint.h */ |
29 | # include <inttypes.h> /* most portable stdint.h */ |
23 | #endif |
30 | #endif |
24 | |
31 | |
25 | #ifdef HAVE_MMAP |
32 | #ifdef HAVE_MMAP |
… | |
… | |
45 | # define BOOT_PAGESIZE (void)0 |
52 | # define BOOT_PAGESIZE (void)0 |
46 | #endif |
53 | #endif |
47 | |
54 | |
48 | #if CORO_USE_VALGRIND |
55 | #if CORO_USE_VALGRIND |
49 | # include <valgrind/valgrind.h> |
56 | # include <valgrind/valgrind.h> |
50 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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51 | #else |
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52 | # define REGISTER_STACK(cctx,start,end) |
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53 | #endif |
57 | #endif |
54 | |
58 | |
55 | /* the maximum number of idle cctx that will be pooled */ |
59 | /* the maximum number of idle cctx that will be pooled */ |
56 | #define MAX_IDLE_CCTX 8 |
60 | static int cctx_max_idle = 4; |
57 | |
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58 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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59 | (PERL_REVISION > (a) \ |
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60 | || (PERL_REVISION == (a) \ |
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61 | && (PERL_VERSION > (b) \ |
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62 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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63 | |
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64 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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65 | # ifndef PL_ppaddr |
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66 | # define PL_ppaddr ppaddr |
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67 | # endif |
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68 | # ifndef call_sv |
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69 | # define call_sv perl_call_sv |
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70 | # endif |
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71 | # ifndef get_sv |
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72 | # define get_sv perl_get_sv |
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73 | # endif |
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74 | # ifndef get_cv |
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75 | # define get_cv perl_get_cv |
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76 | # endif |
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77 | # ifndef IS_PADGV |
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78 | # define IS_PADGV(v) 0 |
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79 | # endif |
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80 | # ifndef IS_PADCONST |
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81 | # define IS_PADCONST(v) 0 |
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82 | # endif |
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83 | #endif |
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84 | |
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85 | /* 5.8.8 */ |
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86 | #ifndef GV_NOTQUAL |
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87 | # define GV_NOTQUAL 0 |
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88 | #endif |
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89 | #ifndef newSV |
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90 | # define newSV(l) NEWSV(0,l) |
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91 | #endif |
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92 | |
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93 | /* 5.11 */ |
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94 | #ifndef CxHASARGS |
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95 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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96 | #endif |
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97 | |
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98 | /* 5.8.7 */ |
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99 | #ifndef SvRV_set |
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100 | # define SvRV_set(s,v) SvRV(s) = (v) |
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101 | #endif |
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102 | |
61 | |
103 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
62 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
104 | # undef CORO_STACKGUARD |
63 | # undef CORO_STACKGUARD |
105 | #endif |
64 | #endif |
106 | |
65 | |
… | |
… | |
113 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
72 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
114 | #endif |
73 | #endif |
115 | |
74 | |
116 | /* The next macros try to return the current stack pointer, in an as |
75 | /* The next macros try to return the current stack pointer, in an as |
117 | * portable way as possible. */ |
76 | * portable way as possible. */ |
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77 | #if __GNUC__ >= 4 |
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78 | # define dSTACKLEVEL int stacklevel_dummy |
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79 | # define STACKLEVEL __builtin_frame_address (0) |
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80 | #else |
118 | #define dSTACKLEVEL volatile char stacklevel |
81 | # define dSTACKLEVEL volatile void *stacklevel |
119 | #define STACKLEVEL ((void *)&stacklevel) |
82 | # define STACKLEVEL ((void *)&stacklevel) |
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83 | #endif |
120 | |
84 | |
121 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
85 | #define IN_DESTRUCT PL_dirty |
122 | |
86 | |
123 | #if __GNUC__ >= 3 |
87 | #if __GNUC__ >= 3 |
124 | # define attribute(x) __attribute__(x) |
88 | # define attribute(x) __attribute__(x) |
125 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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126 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
89 | # define expect(expr,value) __builtin_expect ((expr), (value)) |
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90 | # define INLINE static inline |
127 | #else |
91 | #else |
128 | # define attribute(x) |
92 | # define attribute(x) |
129 | # define BARRIER |
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130 | # define expect(expr,value) (expr) |
93 | # define expect(expr,value) (expr) |
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94 | # define INLINE static |
131 | #endif |
95 | #endif |
132 | |
96 | |
133 | #define expect_false(expr) expect ((expr) != 0, 0) |
97 | #define expect_false(expr) expect ((expr) != 0, 0) |
134 | #define expect_true(expr) expect ((expr) != 0, 1) |
98 | #define expect_true(expr) expect ((expr) != 0, 1) |
135 | |
99 | |
136 | #define NOINLINE attribute ((noinline)) |
100 | #define NOINLINE attribute ((noinline)) |
137 | |
101 | |
138 | #include "CoroAPI.h" |
102 | #include "CoroAPI.h" |
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103 | #define GCoroAPI (&coroapi) /* very sneaky */ |
139 | |
104 | |
140 | #ifdef USE_ITHREADS |
105 | #ifdef USE_ITHREADS |
141 | static perl_mutex coro_mutex; |
106 | # if CORO_PTHREAD |
142 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
107 | static void *coro_thx; |
143 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
108 | # endif |
144 | #else |
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145 | # define LOCK (void)0 |
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146 | # define UNLOCK (void)0 |
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147 | #endif |
109 | #endif |
148 | |
110 | |
149 | /* helper storage struct for Coro::AIO */ |
111 | #ifdef __linux |
150 | struct io_state |
112 | # include <time.h> /* for timespec */ |
151 | { |
113 | # include <syscall.h> /* for SYS_* */ |
152 | int errorno; |
114 | # ifdef SYS_clock_gettime |
153 | I32 laststype; |
115 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
154 | int laststatval; |
116 | # define CORO_CLOCK_MONOTONIC 1 |
155 | Stat_t statcache; |
117 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
156 | }; |
118 | # endif |
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119 | #endif |
157 | |
120 | |
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121 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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122 | static void (*u2time)(pTHX_ UV ret[2]); |
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123 | |
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124 | /* we hijack an hopefully unused CV flag for our purposes */ |
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125 | #define CVf_SLF 0x4000 |
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126 | static OP *pp_slf (pTHX); |
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127 | |
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128 | static U32 cctx_gen; |
158 | static size_t coro_stacksize = CORO_STACKSIZE; |
129 | static size_t cctx_stacksize = CORO_STACKSIZE; |
159 | static struct CoroAPI coroapi; |
130 | static struct CoroAPI coroapi; |
160 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
131 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
161 | static JMPENV *main_top_env; |
132 | static JMPENV *main_top_env; |
162 | static HV *coro_state_stash, *coro_stash; |
133 | static HV *coro_state_stash, *coro_stash; |
163 | static volatile SV *coro_mortal; /* will be freed after next transfer */ |
134 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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135 | |
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136 | static AV *av_destroy; /* destruction queue */ |
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137 | static SV *sv_manager; /* the manager coro */ |
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138 | static SV *sv_idle; /* $Coro::idle */ |
164 | |
139 | |
165 | static GV *irsgv; /* $/ */ |
140 | static GV *irsgv; /* $/ */ |
166 | static GV *stdoutgv; /* *STDOUT */ |
141 | static GV *stdoutgv; /* *STDOUT */ |
167 | static SV *rv_diehook; |
142 | static SV *rv_diehook; |
168 | static SV *rv_warnhook; |
143 | static SV *rv_warnhook; |
169 | static HV *hv_sig; /* %SIG */ |
144 | static HV *hv_sig; /* %SIG */ |
170 | |
145 | |
171 | /* async_pool helper stuff */ |
146 | /* async_pool helper stuff */ |
172 | static SV *sv_pool_rss; |
147 | static SV *sv_pool_rss; |
173 | static SV *sv_pool_size; |
148 | static SV *sv_pool_size; |
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149 | static SV *sv_async_pool_idle; /* description string */ |
174 | static AV *av_async_pool; |
150 | static AV *av_async_pool; /* idle pool */ |
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151 | static SV *sv_Coro; /* class string */ |
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152 | static CV *cv_pool_handler; |
175 | |
153 | |
176 | /* Coro::AnyEvent */ |
154 | /* Coro::AnyEvent */ |
177 | static SV *sv_activity; |
155 | static SV *sv_activity; |
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156 | |
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157 | /* enable processtime/realtime profiling */ |
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158 | static char enable_times; |
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159 | typedef U32 coro_ts[2]; |
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160 | static coro_ts time_real, time_cpu; |
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161 | static char times_valid; |
178 | |
162 | |
179 | static struct coro_cctx *cctx_first; |
163 | static struct coro_cctx *cctx_first; |
180 | static int cctx_count, cctx_idle; |
164 | static int cctx_count, cctx_idle; |
181 | |
165 | |
182 | enum { |
166 | enum { |
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187 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
171 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
188 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
172 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
189 | }; |
173 | }; |
190 | |
174 | |
191 | /* this is a structure representing a c-level coroutine */ |
175 | /* this is a structure representing a c-level coroutine */ |
192 | typedef struct coro_cctx { |
176 | typedef struct coro_cctx |
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177 | { |
193 | struct coro_cctx *next; |
178 | struct coro_cctx *next; |
194 | |
179 | |
195 | /* the stack */ |
180 | /* the stack */ |
196 | void *sptr; |
181 | void *sptr; |
197 | size_t ssize; |
182 | size_t ssize; |
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200 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
185 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
201 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
186 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
202 | JMPENV *top_env; |
187 | JMPENV *top_env; |
203 | coro_context cctx; |
188 | coro_context cctx; |
204 | |
189 | |
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190 | U32 gen; |
205 | #if CORO_USE_VALGRIND |
191 | #if CORO_USE_VALGRIND |
206 | int valgrind_id; |
192 | int valgrind_id; |
207 | #endif |
193 | #endif |
208 | unsigned char flags; |
194 | unsigned char flags; |
209 | } coro_cctx; |
195 | } coro_cctx; |
210 | |
196 | |
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197 | coro_cctx *cctx_current; /* the currently running cctx */ |
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198 | |
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199 | /*****************************************************************************/ |
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200 | |
211 | enum { |
201 | enum { |
212 | CF_RUNNING = 0x0001, /* coroutine is running */ |
202 | CF_RUNNING = 0x0001, /* coroutine is running */ |
213 | CF_READY = 0x0002, /* coroutine is ready */ |
203 | CF_READY = 0x0002, /* coroutine is ready */ |
214 | CF_NEW = 0x0004, /* has never been switched to */ |
204 | CF_NEW = 0x0004, /* has never been switched to */ |
215 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
205 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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206 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
216 | }; |
207 | }; |
217 | |
208 | |
218 | /* 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 */ |
219 | typedef struct { |
210 | typedef struct |
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211 | { |
220 | SV *defsv; |
212 | SV *defsv; |
221 | AV *defav; |
213 | AV *defav; |
222 | SV *errsv; |
214 | SV *errsv; |
223 | SV *irsgv; |
215 | SV *irsgv; |
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216 | HV *hinthv; |
224 | #define VAR(name,type) type name; |
217 | #define VAR(name,type) type name; |
225 | # include "state.h" |
218 | # include "state.h" |
226 | #undef VAR |
219 | #undef VAR |
227 | } perl_slots; |
220 | } perl_slots; |
228 | |
221 | |
229 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
222 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
230 | |
223 | |
231 | /* this is a structure representing a perl-level coroutine */ |
224 | /* this is a structure representing a perl-level coroutine */ |
232 | struct coro { |
225 | struct coro { |
233 | /* the c coroutine allocated to this perl coroutine, if any */ |
226 | /* the C coroutine allocated to this perl coroutine, if any */ |
234 | coro_cctx *cctx; |
227 | coro_cctx *cctx; |
235 | |
228 | |
236 | /* process data */ |
229 | /* ready queue */ |
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230 | struct coro *next_ready; |
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231 | |
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232 | /* state data */ |
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233 | struct CoroSLF slf_frame; /* saved slf frame */ |
237 | AV *mainstack; |
234 | AV *mainstack; |
238 | perl_slots *slot; /* basically the saved sp */ |
235 | perl_slots *slot; /* basically the saved sp */ |
239 | |
236 | |
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237 | CV *startcv; /* the CV to execute */ |
240 | AV *args; /* data associated with this coroutine (initial args) */ |
238 | AV *args; /* data associated with this coroutine (initial args) */ |
241 | int refcnt; /* coroutines are refcounted, yes */ |
239 | int refcnt; /* coroutines are refcounted, yes */ |
242 | int flags; /* CF_ flags */ |
240 | int flags; /* CF_ flags */ |
243 | HV *hv; /* the perl hash associated with this coro, if any */ |
241 | HV *hv; /* the perl hash associated with this coro, if any */ |
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242 | void (*on_destroy)(pTHX_ struct coro *coro); |
244 | |
243 | |
245 | /* statistics */ |
244 | /* statistics */ |
246 | int usecount; /* number of transfers to this coro */ |
245 | int usecount; /* number of transfers to this coro */ |
247 | |
246 | |
248 | /* coro process data */ |
247 | /* coro process data */ |
249 | int prio; |
248 | int prio; |
250 | SV *throw; /* exception to be thrown */ |
249 | SV *except; /* exception to be thrown */ |
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250 | SV *rouse_cb; |
251 | |
251 | |
252 | /* async_pool */ |
252 | /* async_pool */ |
253 | SV *saved_deffh; |
253 | SV *saved_deffh; |
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254 | SV *invoke_cb; |
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255 | AV *invoke_av; |
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256 | |
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257 | /* on_enter/on_leave */ |
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258 | AV *on_enter; |
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259 | AV *on_leave; |
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260 | |
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261 | /* swap_sv */ |
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262 | AV *swap_sv; |
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263 | |
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264 | /* times */ |
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265 | coro_ts t_cpu, t_real; |
254 | |
266 | |
255 | /* linked list */ |
267 | /* linked list */ |
256 | struct coro *next, *prev; |
268 | struct coro *next, *prev; |
257 | }; |
269 | }; |
258 | |
270 | |
259 | typedef struct coro *Coro__State; |
271 | typedef struct coro *Coro__State; |
260 | typedef struct coro *Coro__State_or_hashref; |
272 | typedef struct coro *Coro__State_or_hashref; |
261 | |
273 | |
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274 | /* the following variables are effectively part of the perl context */ |
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275 | /* and get copied between struct coro and these variables */ |
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276 | /* the mainr easonw e don't support windows process emulation */ |
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277 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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278 | |
262 | /** Coro ********************************************************************/ |
279 | /** Coro ********************************************************************/ |
263 | |
280 | |
264 | #define PRIO_MAX 3 |
281 | #define CORO_PRIO_MAX 3 |
265 | #define PRIO_HIGH 1 |
282 | #define CORO_PRIO_HIGH 1 |
266 | #define PRIO_NORMAL 0 |
283 | #define CORO_PRIO_NORMAL 0 |
267 | #define PRIO_LOW -1 |
284 | #define CORO_PRIO_LOW -1 |
268 | #define PRIO_IDLE -3 |
285 | #define CORO_PRIO_IDLE -3 |
269 | #define PRIO_MIN -4 |
286 | #define CORO_PRIO_MIN -4 |
270 | |
287 | |
271 | /* for Coro.pm */ |
288 | /* for Coro.pm */ |
272 | static SV *coro_current; |
289 | static SV *coro_current; |
273 | static SV *coro_readyhook; |
290 | static SV *coro_readyhook; |
274 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
291 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
275 | static int coro_nready; |
292 | static CV *cv_coro_run, *cv_coro_terminate; |
276 | static struct coro *coro_first; |
293 | static struct coro *coro_first; |
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294 | #define coro_nready coroapi.nready |
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295 | |
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296 | /** Coro::Select ************************************************************/ |
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297 | |
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298 | static OP *(*coro_old_pp_sselect) (pTHX); |
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299 | static SV *coro_select_select; |
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300 | |
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301 | /* horrible hack, but if it works... */ |
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302 | static OP * |
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303 | coro_pp_sselect (pTHX) |
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304 | { |
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305 | dSP; |
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306 | PUSHMARK (SP - 4); /* fake argument list */ |
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307 | XPUSHs (coro_select_select); |
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308 | PUTBACK; |
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309 | |
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310 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
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311 | PL_op->op_flags |= OPf_STACKED; |
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312 | PL_op->op_private = 0; |
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313 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
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314 | } |
277 | |
315 | |
278 | /** lowlevel stuff **********************************************************/ |
316 | /** lowlevel stuff **********************************************************/ |
279 | |
317 | |
280 | static SV * |
318 | static SV * |
281 | coro_get_sv (pTHX_ const char *name, int create) |
319 | coro_get_sv (pTHX_ const char *name, int create) |
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305 | get_hv (name, create); |
343 | get_hv (name, create); |
306 | #endif |
344 | #endif |
307 | return get_hv (name, create); |
345 | return get_hv (name, create); |
308 | } |
346 | } |
309 | |
347 | |
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348 | INLINE void |
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349 | coro_times_update () |
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350 | { |
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351 | #ifdef coro_clock_gettime |
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352 | struct timespec ts; |
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353 | |
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354 | ts.tv_sec = ts.tv_nsec = 0; |
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355 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
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356 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
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357 | |
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358 | ts.tv_sec = ts.tv_nsec = 0; |
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359 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
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360 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
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361 | #else |
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362 | dTHX; |
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363 | UV tv[2]; |
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364 | |
|
|
365 | u2time (aTHX_ tv); |
|
|
366 | time_real [0] = tv [0]; |
|
|
367 | time_real [1] = tv [1] * 1000; |
|
|
368 | #endif |
|
|
369 | } |
|
|
370 | |
|
|
371 | INLINE void |
|
|
372 | coro_times_add (struct coro *c) |
|
|
373 | { |
|
|
374 | c->t_real [1] += time_real [1]; |
|
|
375 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
|
376 | c->t_real [0] += time_real [0]; |
|
|
377 | |
|
|
378 | c->t_cpu [1] += time_cpu [1]; |
|
|
379 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
|
380 | c->t_cpu [0] += time_cpu [0]; |
|
|
381 | } |
|
|
382 | |
|
|
383 | INLINE void |
|
|
384 | coro_times_sub (struct coro *c) |
|
|
385 | { |
|
|
386 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
|
387 | c->t_real [1] -= time_real [1]; |
|
|
388 | c->t_real [0] -= time_real [0]; |
|
|
389 | |
|
|
390 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
|
391 | c->t_cpu [1] -= time_cpu [1]; |
|
|
392 | c->t_cpu [0] -= time_cpu [0]; |
|
|
393 | } |
|
|
394 | |
|
|
395 | /*****************************************************************************/ |
|
|
396 | /* magic glue */ |
|
|
397 | |
|
|
398 | #define CORO_MAGIC_type_cv 26 |
|
|
399 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
400 | |
|
|
401 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
402 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
403 | ? SvMAGIC (sv) \ |
|
|
404 | : mg_find (sv, type)) |
|
|
405 | |
|
|
406 | #define CORO_MAGIC(sv, type) \ |
|
|
407 | (expect_true (SvMAGIC (sv)) \ |
|
|
408 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
409 | : 0) |
|
|
410 | |
|
|
411 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
412 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
413 | |
|
|
414 | INLINE struct coro * |
|
|
415 | SvSTATE_ (pTHX_ SV *coro) |
|
|
416 | { |
|
|
417 | HV *stash; |
|
|
418 | MAGIC *mg; |
|
|
419 | |
|
|
420 | if (SvROK (coro)) |
|
|
421 | coro = SvRV (coro); |
|
|
422 | |
|
|
423 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
424 | croak ("Coro::State object required"); |
|
|
425 | |
|
|
426 | stash = SvSTASH (coro); |
|
|
427 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
428 | { |
|
|
429 | /* very slow, but rare, check */ |
|
|
430 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
431 | croak ("Coro::State object required"); |
|
|
432 | } |
|
|
433 | |
|
|
434 | mg = CORO_MAGIC_state (coro); |
|
|
435 | return (struct coro *)mg->mg_ptr; |
|
|
436 | } |
|
|
437 | |
|
|
438 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
439 | |
|
|
440 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
441 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
442 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
443 | |
|
|
444 | /*****************************************************************************/ |
|
|
445 | /* padlist management and caching */ |
|
|
446 | |
310 | static AV * |
447 | static AV * |
311 | coro_clone_padlist (pTHX_ CV *cv) |
448 | coro_derive_padlist (pTHX_ CV *cv) |
312 | { |
449 | { |
313 | AV *padlist = CvPADLIST (cv); |
450 | AV *padlist = CvPADLIST (cv); |
314 | AV *newpadlist, *newpad; |
451 | AV *newpadlist, *newpad; |
315 | |
452 | |
316 | newpadlist = newAV (); |
453 | newpadlist = newAV (); |
… | |
… | |
321 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
458 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
322 | #endif |
459 | #endif |
323 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
460 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
324 | --AvFILLp (padlist); |
461 | --AvFILLp (padlist); |
325 | |
462 | |
326 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
463 | av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); |
327 | av_store (newpadlist, 1, (SV *)newpad); |
464 | av_store (newpadlist, 1, (SV *)newpad); |
328 | |
465 | |
329 | return newpadlist; |
466 | return newpadlist; |
330 | } |
467 | } |
331 | |
468 | |
332 | static void |
469 | static void |
333 | free_padlist (pTHX_ AV *padlist) |
470 | free_padlist (pTHX_ AV *padlist) |
334 | { |
471 | { |
335 | /* may be during global destruction */ |
472 | /* may be during global destruction */ |
336 | if (SvREFCNT (padlist)) |
473 | if (!IN_DESTRUCT) |
337 | { |
474 | { |
338 | I32 i = AvFILLp (padlist); |
475 | I32 i = AvFILLp (padlist); |
339 | while (i >= 0) |
476 | |
|
|
477 | while (i > 0) /* special-case index 0 */ |
340 | { |
478 | { |
341 | SV **svp = av_fetch (padlist, i--, FALSE); |
479 | /* we try to be extra-careful here */ |
342 | if (svp) |
480 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
343 | { |
481 | I32 j = AvFILLp (av); |
344 | SV *sv; |
482 | |
345 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
483 | while (j >= 0) |
|
|
484 | SvREFCNT_dec (AvARRAY (av)[j--]); |
|
|
485 | |
|
|
486 | AvFILLp (av) = -1; |
346 | SvREFCNT_dec (sv); |
487 | SvREFCNT_dec (av); |
347 | |
|
|
348 | SvREFCNT_dec (*svp); |
|
|
349 | } |
|
|
350 | } |
488 | } |
351 | |
489 | |
|
|
490 | SvREFCNT_dec (AvARRAY (padlist)[0]); |
|
|
491 | |
|
|
492 | AvFILLp (padlist) = -1; |
352 | SvREFCNT_dec ((SV*)padlist); |
493 | SvREFCNT_dec ((SV*)padlist); |
353 | } |
494 | } |
354 | } |
495 | } |
355 | |
496 | |
356 | static int |
497 | static int |
357 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
498 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
358 | { |
499 | { |
359 | AV *padlist; |
500 | AV *padlist; |
360 | AV *av = (AV *)mg->mg_obj; |
501 | AV *av = (AV *)mg->mg_obj; |
|
|
502 | |
|
|
503 | /* perl manages to free our internal AV and _then_ call us */ |
|
|
504 | if (IN_DESTRUCT) |
|
|
505 | return 0; |
361 | |
506 | |
362 | /* casting is fun. */ |
507 | /* casting is fun. */ |
363 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
508 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
364 | free_padlist (aTHX_ padlist); |
509 | free_padlist (aTHX_ padlist); |
365 | |
510 | |
|
|
511 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
|
|
512 | |
366 | return 0; |
513 | return 0; |
367 | } |
514 | } |
368 | |
|
|
369 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
370 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
371 | |
515 | |
372 | static MGVTBL coro_cv_vtbl = { |
516 | static MGVTBL coro_cv_vtbl = { |
373 | 0, 0, 0, 0, |
517 | 0, 0, 0, 0, |
374 | coro_cv_free |
518 | coro_cv_free |
375 | }; |
519 | }; |
376 | |
|
|
377 | #define CORO_MAGIC(sv,type) \ |
|
|
378 | SvMAGIC (sv) \ |
|
|
379 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
380 | ? SvMAGIC (sv) \ |
|
|
381 | : mg_find (sv, type) \ |
|
|
382 | : 0 |
|
|
383 | |
|
|
384 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
385 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
386 | |
|
|
387 | static struct coro * |
|
|
388 | SvSTATE_ (pTHX_ SV *coro) |
|
|
389 | { |
|
|
390 | HV *stash; |
|
|
391 | MAGIC *mg; |
|
|
392 | |
|
|
393 | if (SvROK (coro)) |
|
|
394 | coro = SvRV (coro); |
|
|
395 | |
|
|
396 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
397 | croak ("Coro::State object required"); |
|
|
398 | |
|
|
399 | stash = SvSTASH (coro); |
|
|
400 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
401 | { |
|
|
402 | /* very slow, but rare, check */ |
|
|
403 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
404 | croak ("Coro::State object required"); |
|
|
405 | } |
|
|
406 | |
|
|
407 | mg = CORO_MAGIC_state (coro); |
|
|
408 | return (struct coro *)mg->mg_ptr; |
|
|
409 | } |
|
|
410 | |
|
|
411 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
412 | |
520 | |
413 | /* the next two functions merely cache the padlists */ |
521 | /* the next two functions merely cache the padlists */ |
414 | static void |
522 | static void |
415 | get_padlist (pTHX_ CV *cv) |
523 | get_padlist (pTHX_ CV *cv) |
416 | { |
524 | { |
… | |
… | |
420 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
528 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
421 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
529 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
422 | else |
530 | else |
423 | { |
531 | { |
424 | #if CORO_PREFER_PERL_FUNCTIONS |
532 | #if CORO_PREFER_PERL_FUNCTIONS |
425 | /* this is probably cleaner, but also slower? */ |
533 | /* this is probably cleaner? but also slower! */ |
|
|
534 | /* in practise, it seems to be less stable */ |
426 | CV *cp = Perl_cv_clone (cv); |
535 | CV *cp = Perl_cv_clone (aTHX_ cv); |
427 | CvPADLIST (cv) = CvPADLIST (cp); |
536 | CvPADLIST (cv) = CvPADLIST (cp); |
428 | CvPADLIST (cp) = 0; |
537 | CvPADLIST (cp) = 0; |
429 | SvREFCNT_dec (cp); |
538 | SvREFCNT_dec (cp); |
430 | #else |
539 | #else |
431 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
540 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
432 | #endif |
541 | #endif |
433 | } |
542 | } |
434 | } |
543 | } |
435 | |
544 | |
436 | static void |
545 | static void |
… | |
… | |
443 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
552 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
444 | |
553 | |
445 | av = (AV *)mg->mg_obj; |
554 | av = (AV *)mg->mg_obj; |
446 | |
555 | |
447 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
556 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
448 | av_extend (av, AvMAX (av) + 1); |
557 | av_extend (av, AvFILLp (av) + 1); |
449 | |
558 | |
450 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
559 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
451 | } |
560 | } |
452 | |
561 | |
453 | /** load & save, init *******************************************************/ |
562 | /** load & save, init *******************************************************/ |
|
|
563 | |
|
|
564 | /* swap sv heads, at least logically */ |
|
|
565 | static void |
|
|
566 | swap_svs (pTHX_ Coro__State c) |
|
|
567 | { |
|
|
568 | int i; |
|
|
569 | |
|
|
570 | for (i = 0; i <= AvFILLp (c->swap_sv); ) |
|
|
571 | { |
|
|
572 | SV *a = AvARRAY (c->swap_sv)[i++]; |
|
|
573 | SV *b = AvARRAY (c->swap_sv)[i++]; |
|
|
574 | |
|
|
575 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
576 | SV tmp; |
|
|
577 | |
|
|
578 | /* swap sv_any */ |
|
|
579 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
580 | |
|
|
581 | /* swap sv_flags */ |
|
|
582 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
583 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
584 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
585 | |
|
|
586 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
587 | /* perl 5.10 complicates this _quite_ a bit, but it also is |
|
|
588 | * is much faster, so no quarrels here. alternatively, we could |
|
|
589 | * sv_upgrade to avoid this. |
|
|
590 | */ |
|
|
591 | { |
|
|
592 | /* swap sv_u */ |
|
|
593 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
594 | |
|
|
595 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
596 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
597 | */ |
|
|
598 | #define svany_in_head(type) \ |
|
|
599 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
|
|
600 | |
|
|
601 | if (svany_in_head (SvTYPE (a))) |
|
|
602 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
603 | |
|
|
604 | if (svany_in_head (SvTYPE (b))) |
|
|
605 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
606 | } |
|
|
607 | #endif |
|
|
608 | } |
|
|
609 | } |
|
|
610 | |
|
|
611 | #define SWAP_SVS(coro) \ |
|
|
612 | if (expect_false ((coro)->swap_sv)) \ |
|
|
613 | swap_svs (aTHX_ (coro)) |
|
|
614 | |
|
|
615 | static void |
|
|
616 | on_enterleave_call (pTHX_ SV *cb); |
454 | |
617 | |
455 | static void |
618 | static void |
456 | load_perl (pTHX_ Coro__State c) |
619 | load_perl (pTHX_ Coro__State c) |
457 | { |
620 | { |
458 | perl_slots *slot = c->slot; |
621 | perl_slots *slot = c->slot; |
459 | c->slot = 0; |
622 | c->slot = 0; |
460 | |
623 | |
461 | PL_mainstack = c->mainstack; |
624 | PL_mainstack = c->mainstack; |
462 | |
625 | |
463 | GvSV (PL_defgv) = slot->defsv; |
626 | GvSV (PL_defgv) = slot->defsv; |
464 | GvAV (PL_defgv) = slot->defav; |
627 | GvAV (PL_defgv) = slot->defav; |
465 | GvSV (PL_errgv) = slot->errsv; |
628 | GvSV (PL_errgv) = slot->errsv; |
466 | GvSV (irsgv) = slot->irsgv; |
629 | GvSV (irsgv) = slot->irsgv; |
|
|
630 | GvHV (PL_hintgv) = slot->hinthv; |
467 | |
631 | |
468 | #define VAR(name,type) PL_ ## name = slot->name; |
632 | #define VAR(name,type) PL_ ## name = slot->name; |
469 | # include "state.h" |
633 | # include "state.h" |
470 | #undef VAR |
634 | #undef VAR |
471 | |
635 | |
… | |
… | |
482 | CvPADLIST (cv) = (AV *)POPs; |
646 | CvPADLIST (cv) = (AV *)POPs; |
483 | } |
647 | } |
484 | |
648 | |
485 | PUTBACK; |
649 | PUTBACK; |
486 | } |
650 | } |
|
|
651 | |
|
|
652 | slf_frame = c->slf_frame; |
|
|
653 | CORO_THROW = c->except; |
|
|
654 | |
|
|
655 | if (expect_false (enable_times)) |
|
|
656 | { |
|
|
657 | if (expect_false (!times_valid)) |
|
|
658 | coro_times_update (); |
|
|
659 | |
|
|
660 | coro_times_sub (c); |
|
|
661 | } |
|
|
662 | |
|
|
663 | if (expect_false (c->on_enter)) |
|
|
664 | { |
|
|
665 | int i; |
|
|
666 | |
|
|
667 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
668 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
669 | } |
|
|
670 | |
|
|
671 | SWAP_SVS (c); |
487 | } |
672 | } |
488 | |
673 | |
489 | static void |
674 | static void |
490 | save_perl (pTHX_ Coro__State c) |
675 | save_perl (pTHX_ Coro__State c) |
491 | { |
676 | { |
|
|
677 | SWAP_SVS (c); |
|
|
678 | |
|
|
679 | if (expect_false (c->on_leave)) |
|
|
680 | { |
|
|
681 | int i; |
|
|
682 | |
|
|
683 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
684 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
685 | } |
|
|
686 | |
|
|
687 | times_valid = 0; |
|
|
688 | |
|
|
689 | if (expect_false (enable_times)) |
|
|
690 | { |
|
|
691 | coro_times_update (); times_valid = 1; |
|
|
692 | coro_times_add (c); |
|
|
693 | } |
|
|
694 | |
|
|
695 | c->except = CORO_THROW; |
|
|
696 | c->slf_frame = slf_frame; |
|
|
697 | |
492 | { |
698 | { |
493 | dSP; |
699 | dSP; |
494 | I32 cxix = cxstack_ix; |
700 | I32 cxix = cxstack_ix; |
495 | PERL_CONTEXT *ccstk = cxstack; |
701 | PERL_CONTEXT *ccstk = cxstack; |
496 | PERL_SI *top_si = PL_curstackinfo; |
702 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
506 | { |
712 | { |
507 | while (expect_true (cxix >= 0)) |
713 | while (expect_true (cxix >= 0)) |
508 | { |
714 | { |
509 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
715 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
510 | |
716 | |
511 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
717 | if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) |
512 | { |
718 | { |
513 | CV *cv = cx->blk_sub.cv; |
719 | CV *cv = cx->blk_sub.cv; |
514 | |
720 | |
515 | if (expect_true (CvDEPTH (cv))) |
721 | if (expect_true (CvDEPTH (cv))) |
516 | { |
722 | { |
… | |
… | |
540 | /* we manually unroll here, as usually 2 slots is enough */ |
746 | /* we manually unroll here, as usually 2 slots is enough */ |
541 | if (SLOT_COUNT >= 1) CXINC; |
747 | if (SLOT_COUNT >= 1) CXINC; |
542 | if (SLOT_COUNT >= 2) CXINC; |
748 | if (SLOT_COUNT >= 2) CXINC; |
543 | if (SLOT_COUNT >= 3) CXINC; |
749 | if (SLOT_COUNT >= 3) CXINC; |
544 | { |
750 | { |
545 | int i; |
751 | unsigned int i; |
546 | for (i = 3; i < SLOT_COUNT; ++i) |
752 | for (i = 3; i < SLOT_COUNT; ++i) |
547 | CXINC; |
753 | CXINC; |
548 | } |
754 | } |
549 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
755 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
550 | |
756 | |
551 | c->mainstack = PL_mainstack; |
757 | c->mainstack = PL_mainstack; |
552 | |
758 | |
553 | { |
759 | { |
554 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
760 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
555 | |
761 | |
556 | slot->defav = GvAV (PL_defgv); |
762 | slot->defav = GvAV (PL_defgv); |
557 | slot->defsv = DEFSV; |
763 | slot->defsv = DEFSV; |
558 | slot->errsv = ERRSV; |
764 | slot->errsv = ERRSV; |
559 | slot->irsgv = GvSV (irsgv); |
765 | slot->irsgv = GvSV (irsgv); |
|
|
766 | slot->hinthv = GvHV (PL_hintgv); |
560 | |
767 | |
561 | #define VAR(name,type) slot->name = PL_ ## name; |
768 | #define VAR(name,type) slot->name = PL_ ## name; |
562 | # include "state.h" |
769 | # include "state.h" |
563 | #undef VAR |
770 | #undef VAR |
564 | } |
771 | } |
565 | } |
772 | } |
566 | |
773 | |
567 | /* |
774 | /* |
568 | * allocate various perl stacks. This is an exact copy |
775 | * allocate various perl stacks. This is almost an exact copy |
569 | * of perl.c:init_stacks, except that it uses less memory |
776 | * of perl.c:init_stacks, except that it uses less memory |
570 | * on the (sometimes correct) assumption that coroutines do |
777 | * on the (sometimes correct) assumption that coroutines do |
571 | * not usually need a lot of stackspace. |
778 | * not usually need a lot of stackspace. |
572 | */ |
779 | */ |
573 | #if CORO_PREFER_PERL_FUNCTIONS |
780 | #if CORO_PREFER_PERL_FUNCTIONS |
574 | # define coro_init_stacks init_stacks |
781 | # define coro_init_stacks(thx) init_stacks () |
575 | #else |
782 | #else |
576 | static void |
783 | static void |
577 | coro_init_stacks (pTHX) |
784 | coro_init_stacks (pTHX) |
578 | { |
785 | { |
579 | PL_curstackinfo = new_stackinfo(32, 8); |
786 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
616 | |
823 | |
617 | /* |
824 | /* |
618 | * destroy the stacks, the callchain etc... |
825 | * destroy the stacks, the callchain etc... |
619 | */ |
826 | */ |
620 | static void |
827 | static void |
621 | coro_destroy_stacks (pTHX) |
828 | coro_destruct_stacks (pTHX) |
622 | { |
829 | { |
623 | while (PL_curstackinfo->si_next) |
830 | while (PL_curstackinfo->si_next) |
624 | PL_curstackinfo = PL_curstackinfo->si_next; |
831 | PL_curstackinfo = PL_curstackinfo->si_next; |
625 | |
832 | |
626 | while (PL_curstackinfo) |
833 | while (PL_curstackinfo) |
… | |
… | |
642 | #if !PERL_VERSION_ATLEAST (5,10,0) |
849 | #if !PERL_VERSION_ATLEAST (5,10,0) |
643 | Safefree (PL_retstack); |
850 | Safefree (PL_retstack); |
644 | #endif |
851 | #endif |
645 | } |
852 | } |
646 | |
853 | |
|
|
854 | #define CORO_RSS \ |
|
|
855 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
856 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
857 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
858 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
859 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
860 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
861 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
862 | |
647 | static size_t |
863 | static size_t |
648 | coro_rss (pTHX_ struct coro *coro) |
864 | coro_rss (pTHX_ struct coro *coro) |
649 | { |
865 | { |
650 | size_t rss = sizeof (*coro); |
866 | size_t rss = sizeof (*coro); |
651 | |
867 | |
652 | if (coro->mainstack) |
868 | if (coro->mainstack) |
653 | { |
869 | { |
654 | perl_slots tmp_slot; |
|
|
655 | perl_slots *slot; |
|
|
656 | |
|
|
657 | if (coro->flags & CF_RUNNING) |
870 | if (coro->flags & CF_RUNNING) |
658 | { |
871 | { |
659 | slot = &tmp_slot; |
872 | #define SYM(sym) PL_ ## sym |
660 | |
873 | CORO_RSS; |
661 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
662 | # include "state.h" |
|
|
663 | #undef VAR |
874 | #undef SYM |
664 | } |
875 | } |
665 | else |
876 | else |
666 | slot = coro->slot; |
877 | { |
667 | |
878 | #define SYM(sym) coro->slot->sym |
668 | rss += sizeof (slot->curstackinfo); |
879 | CORO_RSS; |
669 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
880 | #undef SYM |
670 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
881 | } |
671 | rss += slot->tmps_max * sizeof (SV *); |
|
|
672 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
673 | rss += slot->scopestack_max * sizeof (I32); |
|
|
674 | rss += slot->savestack_max * sizeof (ANY); |
|
|
675 | |
|
|
676 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
677 | rss += slot->retstack_max * sizeof (OP *); |
|
|
678 | #endif |
|
|
679 | } |
882 | } |
680 | |
883 | |
681 | return rss; |
884 | return rss; |
682 | } |
885 | } |
683 | |
886 | |
… | |
… | |
695 | #endif |
898 | #endif |
696 | |
899 | |
697 | /* |
900 | /* |
698 | * This overrides the default magic get method of %SIG elements. |
901 | * This overrides the default magic get method of %SIG elements. |
699 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
902 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
700 | * and instead of tryign to save and restore the hash elements, we just provide |
903 | * and instead of trying to save and restore the hash elements, we just provide |
701 | * readback here. |
904 | * readback here. |
702 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
703 | * not expecting this to actually change the hook. This is a potential problem |
|
|
704 | * when a schedule happens then, but we ignore this. |
|
|
705 | */ |
905 | */ |
706 | static int |
906 | static int |
707 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
907 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
708 | { |
908 | { |
709 | const char *s = MgPV_nolen_const (mg); |
909 | const char *s = MgPV_nolen_const (mg); |
… | |
… | |
762 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
962 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
763 | |
963 | |
764 | if (svp) |
964 | if (svp) |
765 | { |
965 | { |
766 | SV *old = *svp; |
966 | SV *old = *svp; |
767 | *svp = newSVsv (sv); |
967 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
768 | SvREFCNT_dec (old); |
968 | SvREFCNT_dec (old); |
769 | return 0; |
969 | return 0; |
770 | } |
970 | } |
771 | } |
971 | } |
772 | |
972 | |
773 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
973 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
774 | } |
974 | } |
775 | |
975 | |
776 | static void |
976 | static void |
|
|
977 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
978 | { |
|
|
979 | /* kind of mega-hacky, but works */ |
|
|
980 | ta->next = ta->prev = (struct coro *)ta; |
|
|
981 | } |
|
|
982 | |
|
|
983 | static int |
|
|
984 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
985 | { |
|
|
986 | return 0; |
|
|
987 | } |
|
|
988 | |
|
|
989 | static int |
|
|
990 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
991 | { |
|
|
992 | return 1; |
|
|
993 | } |
|
|
994 | |
|
|
995 | static UNOP init_perl_op; |
|
|
996 | |
|
|
997 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
777 | coro_setup (pTHX_ struct coro *coro) |
998 | init_perl (pTHX_ struct coro *coro) |
778 | { |
999 | { |
779 | /* |
1000 | /* |
780 | * emulate part of the perl startup here. |
1001 | * emulate part of the perl startup here. |
781 | */ |
1002 | */ |
782 | coro_init_stacks (aTHX); |
1003 | coro_init_stacks (aTHX); |
783 | |
1004 | |
784 | PL_runops = RUNOPS_DEFAULT; |
1005 | PL_runops = RUNOPS_DEFAULT; |
785 | PL_curcop = &PL_compiling; |
1006 | PL_curcop = &PL_compiling; |
786 | PL_in_eval = EVAL_NULL; |
1007 | PL_in_eval = EVAL_NULL; |
787 | PL_comppad = 0; |
1008 | PL_comppad = 0; |
|
|
1009 | PL_comppad_name = 0; |
|
|
1010 | PL_comppad_name_fill = 0; |
|
|
1011 | PL_comppad_name_floor = 0; |
788 | PL_curpm = 0; |
1012 | PL_curpm = 0; |
789 | PL_curpad = 0; |
1013 | PL_curpad = 0; |
790 | PL_localizing = 0; |
1014 | PL_localizing = 0; |
791 | PL_dirty = 0; |
1015 | PL_dirty = 0; |
792 | PL_restartop = 0; |
1016 | PL_restartop = 0; |
793 | #if PERL_VERSION_ATLEAST (5,10,0) |
1017 | #if PERL_VERSION_ATLEAST (5,10,0) |
794 | PL_parser = 0; |
1018 | PL_parser = 0; |
795 | #endif |
1019 | #endif |
|
|
1020 | PL_hints = 0; |
796 | |
1021 | |
797 | /* recreate the die/warn hooks */ |
1022 | /* recreate the die/warn hooks */ |
798 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
1023 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
799 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
1024 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
800 | |
1025 | |
801 | GvSV (PL_defgv) = newSV (0); |
1026 | GvSV (PL_defgv) = newSV (0); |
802 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1027 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
803 | GvSV (PL_errgv) = newSV (0); |
1028 | GvSV (PL_errgv) = newSV (0); |
804 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1029 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1030 | GvHV (PL_hintgv) = 0; |
805 | PL_rs = newSVsv (GvSV (irsgv)); |
1031 | PL_rs = newSVsv (GvSV (irsgv)); |
806 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
1032 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
807 | |
1033 | |
808 | { |
1034 | { |
809 | dSP; |
1035 | dSP; |
810 | LOGOP myop; |
1036 | UNOP myop; |
811 | |
1037 | |
812 | Zero (&myop, 1, LOGOP); |
1038 | Zero (&myop, 1, UNOP); |
813 | myop.op_next = Nullop; |
1039 | myop.op_next = Nullop; |
|
|
1040 | myop.op_type = OP_ENTERSUB; |
814 | myop.op_flags = OPf_WANT_VOID; |
1041 | myop.op_flags = OPf_WANT_VOID; |
815 | |
1042 | |
816 | PUSHMARK (SP); |
1043 | PUSHMARK (SP); |
817 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
1044 | PUSHs ((SV *)coro->startcv); |
818 | PUTBACK; |
1045 | PUTBACK; |
819 | PL_op = (OP *)&myop; |
1046 | PL_op = (OP *)&myop; |
820 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1047 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
821 | SPAGAIN; |
|
|
822 | } |
1048 | } |
823 | |
1049 | |
824 | /* this newly created coroutine might be run on an existing cctx which most |
1050 | /* this newly created coroutine might be run on an existing cctx which most |
825 | * likely was suspended in set_stacklevel, called from entersub. |
1051 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
826 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
827 | * so we ENTER here for symmetry |
|
|
828 | */ |
1052 | */ |
829 | ENTER; |
1053 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
830 | } |
1054 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
831 | |
1055 | |
|
|
1056 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1057 | init_perl_op.op_next = PL_op; |
|
|
1058 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1059 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1060 | /* no flags etc. required, as an init function won't be called */ |
|
|
1061 | |
|
|
1062 | PL_op = (OP *)&init_perl_op; |
|
|
1063 | |
|
|
1064 | /* copy throw, in case it was set before init_perl */ |
|
|
1065 | CORO_THROW = coro->except; |
|
|
1066 | |
|
|
1067 | SWAP_SVS (coro); |
|
|
1068 | |
|
|
1069 | if (expect_false (enable_times)) |
|
|
1070 | { |
|
|
1071 | coro_times_update (); |
|
|
1072 | coro_times_sub (coro); |
|
|
1073 | } |
|
|
1074 | } |
|
|
1075 | |
832 | static void |
1076 | static void |
833 | coro_destroy (pTHX_ struct coro *coro) |
1077 | coro_unwind_stacks (pTHX) |
834 | { |
1078 | { |
835 | if (!IN_DESTRUCT) |
1079 | if (!IN_DESTRUCT) |
836 | { |
1080 | { |
837 | /* restore all saved variables and stuff */ |
1081 | /* restore all saved variables and stuff */ |
838 | LEAVE_SCOPE (0); |
1082 | LEAVE_SCOPE (0); |
… | |
… | |
846 | POPSTACK_TO (PL_mainstack); |
1090 | POPSTACK_TO (PL_mainstack); |
847 | |
1091 | |
848 | /* unwind main stack */ |
1092 | /* unwind main stack */ |
849 | dounwind (-1); |
1093 | dounwind (-1); |
850 | } |
1094 | } |
|
|
1095 | } |
851 | |
1096 | |
852 | SvREFCNT_dec (GvSV (PL_defgv)); |
1097 | static void |
853 | SvREFCNT_dec (GvAV (PL_defgv)); |
1098 | destroy_perl (pTHX_ struct coro *coro) |
854 | SvREFCNT_dec (GvSV (PL_errgv)); |
1099 | { |
855 | SvREFCNT_dec (PL_defoutgv); |
1100 | SV *svf [9]; |
856 | SvREFCNT_dec (PL_rs); |
|
|
857 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
858 | |
1101 | |
859 | SvREFCNT_dec (PL_diehook); |
|
|
860 | SvREFCNT_dec (PL_warnhook); |
|
|
861 | |
1102 | { |
|
|
1103 | struct coro *current = SvSTATE_current; |
|
|
1104 | |
|
|
1105 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1106 | |
|
|
1107 | save_perl (aTHX_ current); |
|
|
1108 | load_perl (aTHX_ coro); |
|
|
1109 | |
|
|
1110 | coro_unwind_stacks (aTHX); |
|
|
1111 | coro_destruct_stacks (aTHX); |
|
|
1112 | |
|
|
1113 | /* restore swapped sv's */ |
|
|
1114 | SWAP_SVS (coro); |
|
|
1115 | |
|
|
1116 | // now save some sv's to be free'd later |
|
|
1117 | svf [0] = GvSV (PL_defgv); |
|
|
1118 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1119 | svf [2] = GvSV (PL_errgv); |
|
|
1120 | svf [3] = (SV *)PL_defoutgv; |
|
|
1121 | svf [4] = PL_rs; |
|
|
1122 | svf [5] = GvSV (irsgv); |
|
|
1123 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1124 | svf [7] = PL_diehook; |
|
|
1125 | svf [8] = PL_warnhook; |
|
|
1126 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1127 | |
|
|
1128 | load_perl (aTHX_ current); |
|
|
1129 | } |
|
|
1130 | |
|
|
1131 | { |
|
|
1132 | unsigned int i; |
|
|
1133 | |
|
|
1134 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1135 | SvREFCNT_dec (svf [i]); |
|
|
1136 | |
862 | SvREFCNT_dec (coro->saved_deffh); |
1137 | SvREFCNT_dec (coro->saved_deffh); |
863 | SvREFCNT_dec (coro->throw); |
1138 | SvREFCNT_dec (coro->rouse_cb); |
864 | |
1139 | SvREFCNT_dec (coro->invoke_cb); |
865 | coro_destroy_stacks (aTHX); |
1140 | SvREFCNT_dec (coro->invoke_av); |
|
|
1141 | } |
866 | } |
1142 | } |
867 | |
1143 | |
868 | static void |
1144 | INLINE void |
869 | free_coro_mortal (pTHX) |
1145 | free_coro_mortal (pTHX) |
870 | { |
1146 | { |
871 | if (expect_true (coro_mortal)) |
1147 | if (expect_true (coro_mortal)) |
872 | { |
1148 | { |
873 | SvREFCNT_dec (coro_mortal); |
1149 | SvREFCNT_dec (coro_mortal); |
… | |
… | |
878 | static int |
1154 | static int |
879 | runops_trace (pTHX) |
1155 | runops_trace (pTHX) |
880 | { |
1156 | { |
881 | COP *oldcop = 0; |
1157 | COP *oldcop = 0; |
882 | int oldcxix = -2; |
1158 | int oldcxix = -2; |
883 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
884 | coro_cctx *cctx = coro->cctx; |
|
|
885 | |
1159 | |
886 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1160 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
887 | { |
1161 | { |
888 | PERL_ASYNC_CHECK (); |
1162 | PERL_ASYNC_CHECK (); |
889 | |
1163 | |
890 | if (cctx->flags & CC_TRACE_ALL) |
1164 | if (cctx_current->flags & CC_TRACE_ALL) |
891 | { |
1165 | { |
892 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1166 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
893 | { |
1167 | { |
894 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1168 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
895 | SV **bot, **top; |
1169 | SV **bot, **top; |
896 | AV *av = newAV (); /* return values */ |
1170 | AV *av = newAV (); /* return values */ |
897 | SV **cb; |
1171 | SV **cb; |
… | |
… | |
907 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
1181 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
908 | : bot; |
1182 | : bot; |
909 | |
1183 | |
910 | av_extend (av, top - bot); |
1184 | av_extend (av, top - bot); |
911 | while (bot < top) |
1185 | while (bot < top) |
912 | av_push (av, SvREFCNT_inc (*bot++)); |
1186 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
913 | |
1187 | |
914 | PL_runops = RUNOPS_DEFAULT; |
1188 | PL_runops = RUNOPS_DEFAULT; |
915 | ENTER; |
1189 | ENTER; |
916 | SAVETMPS; |
1190 | SAVETMPS; |
917 | EXTEND (SP, 3); |
1191 | EXTEND (SP, 3); |
… | |
… | |
934 | |
1208 | |
935 | if (PL_curcop != &PL_compiling) |
1209 | if (PL_curcop != &PL_compiling) |
936 | { |
1210 | { |
937 | SV **cb; |
1211 | SV **cb; |
938 | |
1212 | |
939 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1213 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
940 | { |
1214 | { |
941 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1215 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
942 | |
1216 | |
943 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1217 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
944 | { |
1218 | { |
945 | runops_proc_t old_runops = PL_runops; |
|
|
946 | dSP; |
1219 | dSP; |
947 | GV *gv = CvGV (cx->blk_sub.cv); |
1220 | GV *gv = CvGV (cx->blk_sub.cv); |
948 | SV *fullname = sv_2mortal (newSV (0)); |
1221 | SV *fullname = sv_2mortal (newSV (0)); |
949 | |
1222 | |
950 | if (isGV (gv)) |
1223 | if (isGV (gv)) |
… | |
… | |
955 | SAVETMPS; |
1228 | SAVETMPS; |
956 | EXTEND (SP, 3); |
1229 | EXTEND (SP, 3); |
957 | PUSHMARK (SP); |
1230 | PUSHMARK (SP); |
958 | PUSHs (&PL_sv_yes); |
1231 | PUSHs (&PL_sv_yes); |
959 | PUSHs (fullname); |
1232 | PUSHs (fullname); |
960 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1233 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
961 | PUTBACK; |
1234 | PUTBACK; |
962 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1235 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
963 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1236 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
964 | SPAGAIN; |
1237 | SPAGAIN; |
965 | FREETMPS; |
1238 | FREETMPS; |
… | |
… | |
968 | } |
1241 | } |
969 | |
1242 | |
970 | oldcxix = cxstack_ix; |
1243 | oldcxix = cxstack_ix; |
971 | } |
1244 | } |
972 | |
1245 | |
973 | if (cctx->flags & CC_TRACE_LINE) |
1246 | if (cctx_current->flags & CC_TRACE_LINE) |
974 | { |
1247 | { |
975 | dSP; |
1248 | dSP; |
976 | |
1249 | |
977 | PL_runops = RUNOPS_DEFAULT; |
1250 | PL_runops = RUNOPS_DEFAULT; |
978 | ENTER; |
1251 | ENTER; |
… | |
… | |
997 | |
1270 | |
998 | TAINT_NOT; |
1271 | TAINT_NOT; |
999 | return 0; |
1272 | return 0; |
1000 | } |
1273 | } |
1001 | |
1274 | |
1002 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1275 | static struct CoroSLF cctx_ssl_frame; |
1003 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1276 | |
1004 | /* during execution of a perl program */ |
1277 | static void |
|
|
1278 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1279 | { |
|
|
1280 | ta->prev = 0; |
|
|
1281 | } |
|
|
1282 | |
|
|
1283 | static int |
|
|
1284 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1285 | { |
|
|
1286 | *frame = cctx_ssl_frame; |
|
|
1287 | |
|
|
1288 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1289 | } |
|
|
1290 | |
|
|
1291 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1005 | static void NOINLINE |
1292 | static void NOINLINE |
1006 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1293 | cctx_prepare (pTHX) |
1007 | { |
1294 | { |
1008 | dSP; |
|
|
1009 | LOGOP myop; |
|
|
1010 | |
|
|
1011 | PL_top_env = &PL_start_env; |
1295 | PL_top_env = &PL_start_env; |
1012 | |
1296 | |
1013 | if (cctx->flags & CC_TRACE) |
1297 | if (cctx_current->flags & CC_TRACE) |
1014 | PL_runops = runops_trace; |
1298 | PL_runops = runops_trace; |
1015 | |
1299 | |
1016 | Zero (&myop, 1, LOGOP); |
1300 | /* we already must be executing an SLF op, there is no other valid way |
1017 | myop.op_next = PL_op; |
1301 | * that can lead to creation of a new cctx */ |
1018 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1302 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1303 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1019 | |
1304 | |
1020 | PUSHMARK (SP); |
1305 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1021 | EXTEND (SP, 2); |
1306 | cctx_ssl_frame = slf_frame; |
1022 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1307 | |
1023 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1308 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1024 | PUTBACK; |
1309 | slf_frame.check = slf_check_set_stacklevel; |
1025 | PL_op = (OP *)&myop; |
1310 | } |
1026 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1311 | |
1027 | SPAGAIN; |
1312 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1313 | INLINE void |
|
|
1314 | transfer_tail (pTHX) |
|
|
1315 | { |
|
|
1316 | free_coro_mortal (aTHX); |
1028 | } |
1317 | } |
1029 | |
1318 | |
1030 | /* |
1319 | /* |
1031 | * this is a _very_ stripped down perl interpreter ;) |
1320 | * this is a _very_ stripped down perl interpreter ;) |
1032 | */ |
1321 | */ |
1033 | static void |
1322 | static void |
1034 | cctx_run (void *arg) |
1323 | cctx_run (void *arg) |
1035 | { |
1324 | { |
|
|
1325 | #ifdef USE_ITHREADS |
|
|
1326 | # if CORO_PTHREAD |
|
|
1327 | PERL_SET_CONTEXT (coro_thx); |
|
|
1328 | # endif |
|
|
1329 | #endif |
|
|
1330 | { |
1036 | dTHX; |
1331 | dTHX; |
1037 | |
1332 | |
1038 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
1333 | /* normally we would need to skip the entersub here */ |
1039 | UNLOCK; |
1334 | /* not doing so will re-execute it, which is exactly what we want */ |
1040 | |
|
|
1041 | /* we now skip the entersub that lead to transfer() */ |
|
|
1042 | PL_op = PL_op->op_next; |
1335 | /* PL_nop = PL_nop->op_next */ |
1043 | |
1336 | |
1044 | /* inject a fake subroutine call to cctx_init */ |
1337 | /* inject a fake subroutine call to cctx_init */ |
1045 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1338 | cctx_prepare (aTHX); |
1046 | |
1339 | |
|
|
1340 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1341 | transfer_tail (aTHX); |
|
|
1342 | |
1047 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1343 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1048 | PL_restartop = PL_op; |
1344 | PL_restartop = PL_op; |
1049 | perl_run (PL_curinterp); |
1345 | perl_run (PL_curinterp); |
1050 | |
|
|
1051 | /* |
1346 | /* |
|
|
1347 | * Unfortunately, there is no way to get at the return values of the |
|
|
1348 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1349 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1350 | */ |
|
|
1351 | |
|
|
1352 | /* |
1052 | * If perl-run returns we assume exit() was being called or the coro |
1353 | * If perl-run returns we assume exit() was being called or the coro |
1053 | * fell off the end, which seems to be the only valid (non-bug) |
1354 | * fell off the end, which seems to be the only valid (non-bug) |
1054 | * reason for perl_run to return. We try to exit by jumping to the |
1355 | * reason for perl_run to return. We try to exit by jumping to the |
1055 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1356 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1056 | * coroutine as Coro has no such concept |
1357 | * coroutine as Coro has no such concept. |
|
|
1358 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1359 | * that backend are too broken to do it in a standards-compliant way. |
1057 | */ |
1360 | */ |
1058 | PL_top_env = main_top_env; |
1361 | PL_top_env = main_top_env; |
1059 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1362 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1363 | } |
1060 | } |
1364 | } |
1061 | |
1365 | |
1062 | static coro_cctx * |
1366 | static coro_cctx * |
1063 | cctx_new () |
1367 | cctx_new () |
1064 | { |
1368 | { |
1065 | coro_cctx *cctx; |
1369 | coro_cctx *cctx; |
|
|
1370 | |
|
|
1371 | ++cctx_count; |
|
|
1372 | New (0, cctx, 1, coro_cctx); |
|
|
1373 | |
|
|
1374 | cctx->gen = cctx_gen; |
|
|
1375 | cctx->flags = 0; |
|
|
1376 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1377 | |
|
|
1378 | return cctx; |
|
|
1379 | } |
|
|
1380 | |
|
|
1381 | /* create a new cctx only suitable as source */ |
|
|
1382 | static coro_cctx * |
|
|
1383 | cctx_new_empty () |
|
|
1384 | { |
|
|
1385 | coro_cctx *cctx = cctx_new (); |
|
|
1386 | |
|
|
1387 | cctx->sptr = 0; |
|
|
1388 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1389 | |
|
|
1390 | return cctx; |
|
|
1391 | } |
|
|
1392 | |
|
|
1393 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1394 | static coro_cctx * |
|
|
1395 | cctx_new_run () |
|
|
1396 | { |
|
|
1397 | coro_cctx *cctx = cctx_new (); |
1066 | void *stack_start; |
1398 | void *stack_start; |
1067 | size_t stack_size; |
1399 | size_t stack_size; |
1068 | |
1400 | |
1069 | ++cctx_count; |
|
|
1070 | |
|
|
1071 | Newz (0, cctx, 1, coro_cctx); |
|
|
1072 | |
|
|
1073 | #if HAVE_MMAP |
1401 | #if HAVE_MMAP |
1074 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1402 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1075 | /* mmap supposedly does allocate-on-write for us */ |
1403 | /* mmap supposedly does allocate-on-write for us */ |
1076 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1404 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1077 | |
1405 | |
1078 | if (cctx->sptr != (void *)-1) |
1406 | if (cctx->sptr != (void *)-1) |
1079 | { |
1407 | { |
1080 | # if CORO_STACKGUARD |
1408 | #if CORO_STACKGUARD |
1081 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1409 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1082 | # endif |
1410 | #endif |
1083 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1411 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
1084 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1412 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1085 | cctx->flags |= CC_MAPPED; |
1413 | cctx->flags |= CC_MAPPED; |
1086 | } |
1414 | } |
1087 | else |
1415 | else |
1088 | #endif |
1416 | #endif |
1089 | { |
1417 | { |
1090 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1418 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1091 | New (0, cctx->sptr, coro_stacksize, long); |
1419 | New (0, cctx->sptr, cctx_stacksize, long); |
1092 | |
1420 | |
1093 | if (!cctx->sptr) |
1421 | if (!cctx->sptr) |
1094 | { |
1422 | { |
1095 | perror ("FATAL: unable to allocate stack for coroutine"); |
1423 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1096 | _exit (EXIT_FAILURE); |
1424 | _exit (EXIT_FAILURE); |
1097 | } |
1425 | } |
1098 | |
1426 | |
1099 | stack_start = cctx->sptr; |
1427 | stack_start = cctx->sptr; |
1100 | stack_size = cctx->ssize; |
1428 | stack_size = cctx->ssize; |
1101 | } |
1429 | } |
1102 | |
1430 | |
1103 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1431 | #if CORO_USE_VALGRIND |
|
|
1432 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1433 | #endif |
|
|
1434 | |
1104 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1435 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1105 | |
1436 | |
1106 | return cctx; |
1437 | return cctx; |
1107 | } |
1438 | } |
1108 | |
1439 | |
… | |
… | |
1110 | cctx_destroy (coro_cctx *cctx) |
1441 | cctx_destroy (coro_cctx *cctx) |
1111 | { |
1442 | { |
1112 | if (!cctx) |
1443 | if (!cctx) |
1113 | return; |
1444 | return; |
1114 | |
1445 | |
|
|
1446 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? |
|
|
1447 | |
1115 | --cctx_count; |
1448 | --cctx_count; |
|
|
1449 | coro_destroy (&cctx->cctx); |
1116 | |
1450 | |
|
|
1451 | /* coro_transfer creates new, empty cctx's */ |
|
|
1452 | if (cctx->sptr) |
|
|
1453 | { |
1117 | #if CORO_USE_VALGRIND |
1454 | #if CORO_USE_VALGRIND |
1118 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1455 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
1456 | #endif |
|
|
1457 | |
|
|
1458 | #if HAVE_MMAP |
|
|
1459 | if (cctx->flags & CC_MAPPED) |
|
|
1460 | munmap (cctx->sptr, cctx->ssize); |
|
|
1461 | else |
1119 | #endif |
1462 | #endif |
1120 | |
|
|
1121 | #if HAVE_MMAP |
|
|
1122 | if (cctx->flags & CC_MAPPED) |
|
|
1123 | munmap (cctx->sptr, cctx->ssize); |
|
|
1124 | else |
|
|
1125 | #endif |
|
|
1126 | Safefree (cctx->sptr); |
1463 | Safefree (cctx->sptr); |
|
|
1464 | } |
1127 | |
1465 | |
1128 | Safefree (cctx); |
1466 | Safefree (cctx); |
1129 | } |
1467 | } |
1130 | |
1468 | |
1131 | /* wether this cctx should be destructed */ |
1469 | /* wether this cctx should be destructed */ |
1132 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
1470 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1133 | |
1471 | |
1134 | static coro_cctx * |
1472 | static coro_cctx * |
1135 | cctx_get (pTHX) |
1473 | cctx_get (pTHX) |
1136 | { |
1474 | { |
1137 | while (expect_true (cctx_first)) |
1475 | while (expect_true (cctx_first)) |
… | |
… | |
1144 | return cctx; |
1482 | return cctx; |
1145 | |
1483 | |
1146 | cctx_destroy (cctx); |
1484 | cctx_destroy (cctx); |
1147 | } |
1485 | } |
1148 | |
1486 | |
1149 | return cctx_new (); |
1487 | return cctx_new_run (); |
1150 | } |
1488 | } |
1151 | |
1489 | |
1152 | static void |
1490 | static void |
1153 | cctx_put (coro_cctx *cctx) |
1491 | cctx_put (coro_cctx *cctx) |
1154 | { |
1492 | { |
|
|
1493 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1494 | |
1155 | /* free another cctx if overlimit */ |
1495 | /* free another cctx if overlimit */ |
1156 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
1496 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1157 | { |
1497 | { |
1158 | coro_cctx *first = cctx_first; |
1498 | coro_cctx *first = cctx_first; |
1159 | cctx_first = first->next; |
1499 | cctx_first = first->next; |
1160 | --cctx_idle; |
1500 | --cctx_idle; |
1161 | |
1501 | |
… | |
… | |
1170 | /** coroutine switching *****************************************************/ |
1510 | /** coroutine switching *****************************************************/ |
1171 | |
1511 | |
1172 | static void |
1512 | static void |
1173 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1513 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1174 | { |
1514 | { |
|
|
1515 | /* TODO: throwing up here is considered harmful */ |
|
|
1516 | |
1175 | if (expect_true (prev != next)) |
1517 | if (expect_true (prev != next)) |
1176 | { |
1518 | { |
1177 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1519 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1178 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1520 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1179 | |
1521 | |
1180 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1181 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1182 | |
|
|
1183 | if (expect_false (next->flags & CF_DESTROYED)) |
1522 | if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) |
1184 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1523 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1185 | |
1524 | |
1186 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1525 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1187 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1526 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1188 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1527 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1189 | #endif |
1528 | #endif |
1190 | } |
1529 | } |
1191 | } |
1530 | } |
1192 | |
1531 | |
1193 | /* always use the TRANSFER macro */ |
1532 | /* always use the TRANSFER macro */ |
1194 | static void NOINLINE |
1533 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1195 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1534 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1196 | { |
1535 | { |
1197 | dSTACKLEVEL; |
1536 | dSTACKLEVEL; |
1198 | static volatile int has_throw; |
|
|
1199 | |
1537 | |
1200 | /* sometimes transfer is only called to set idle_sp */ |
1538 | /* sometimes transfer is only called to set idle_sp */ |
1201 | if (expect_false (!next)) |
1539 | if (expect_false (!prev)) |
1202 | { |
1540 | { |
1203 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1541 | cctx_current->idle_sp = STACKLEVEL; |
1204 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1542 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1205 | } |
1543 | } |
1206 | else if (expect_true (prev != next)) |
1544 | else if (expect_true (prev != next)) |
1207 | { |
1545 | { |
1208 | coro_cctx *prev__cctx; |
1546 | coro_cctx *cctx_prev; |
1209 | |
1547 | |
1210 | if (expect_false (prev->flags & CF_NEW)) |
1548 | if (expect_false (prev->flags & CF_NEW)) |
1211 | { |
1549 | { |
1212 | /* create a new empty context */ |
1550 | /* create a new empty/source context */ |
1213 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
1214 | prev->flags &= ~CF_NEW; |
1551 | prev->flags &= ~CF_NEW; |
1215 | prev->flags |= CF_RUNNING; |
1552 | prev->flags |= CF_RUNNING; |
1216 | } |
1553 | } |
1217 | |
1554 | |
1218 | prev->flags &= ~CF_RUNNING; |
1555 | prev->flags &= ~CF_RUNNING; |
1219 | next->flags |= CF_RUNNING; |
1556 | next->flags |= CF_RUNNING; |
1220 | |
|
|
1221 | LOCK; |
|
|
1222 | |
1557 | |
1223 | /* first get rid of the old state */ |
1558 | /* first get rid of the old state */ |
1224 | save_perl (aTHX_ prev); |
1559 | save_perl (aTHX_ prev); |
1225 | |
1560 | |
1226 | if (expect_false (next->flags & CF_NEW)) |
1561 | if (expect_false (next->flags & CF_NEW)) |
1227 | { |
1562 | { |
1228 | /* need to start coroutine */ |
1563 | /* need to start coroutine */ |
1229 | next->flags &= ~CF_NEW; |
1564 | next->flags &= ~CF_NEW; |
1230 | /* setup coroutine call */ |
1565 | /* setup coroutine call */ |
1231 | coro_setup (aTHX_ next); |
1566 | init_perl (aTHX_ next); |
1232 | } |
1567 | } |
1233 | else |
1568 | else |
1234 | load_perl (aTHX_ next); |
1569 | load_perl (aTHX_ next); |
1235 | |
1570 | |
1236 | prev__cctx = prev->cctx; |
|
|
1237 | |
|
|
1238 | /* possibly "free" the cctx */ |
1571 | /* possibly untie and reuse the cctx */ |
1239 | if (expect_true ( |
1572 | if (expect_true ( |
1240 | prev__cctx->idle_sp == STACKLEVEL |
1573 | cctx_current->idle_sp == STACKLEVEL |
1241 | && !(prev__cctx->flags & CC_TRACE) |
1574 | && !(cctx_current->flags & CC_TRACE) |
1242 | && !force_cctx |
1575 | && !force_cctx |
1243 | )) |
1576 | )) |
1244 | { |
1577 | { |
1245 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1578 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1246 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1579 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1247 | |
1580 | |
1248 | prev->cctx = 0; |
|
|
1249 | |
|
|
1250 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1581 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1251 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1582 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1252 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1583 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
1253 | if (!next->cctx) |
1584 | if (expect_true (!next->cctx)) |
1254 | next->cctx = cctx_get (aTHX); |
1585 | next->cctx = cctx_get (aTHX); |
1255 | |
1586 | |
1256 | cctx_put (prev__cctx); |
1587 | cctx_put (cctx_current); |
1257 | } |
1588 | } |
|
|
1589 | else |
|
|
1590 | prev->cctx = cctx_current; |
1258 | |
1591 | |
1259 | ++next->usecount; |
1592 | ++next->usecount; |
1260 | |
1593 | |
1261 | if (expect_true (!next->cctx)) |
1594 | cctx_prev = cctx_current; |
1262 | next->cctx = cctx_get (aTHX); |
1595 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1263 | |
1596 | |
1264 | has_throw = !!next->throw; |
1597 | next->cctx = 0; |
1265 | |
1598 | |
1266 | if (expect_false (prev__cctx != next->cctx)) |
1599 | if (expect_false (cctx_prev != cctx_current)) |
1267 | { |
1600 | { |
1268 | prev__cctx->top_env = PL_top_env; |
1601 | cctx_prev->top_env = PL_top_env; |
1269 | PL_top_env = next->cctx->top_env; |
1602 | PL_top_env = cctx_current->top_env; |
1270 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1603 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1271 | } |
1604 | } |
1272 | |
1605 | |
1273 | free_coro_mortal (aTHX); |
1606 | transfer_tail (aTHX); |
1274 | UNLOCK; |
|
|
1275 | |
|
|
1276 | if (expect_false (has_throw)) |
|
|
1277 | { |
|
|
1278 | struct coro *coro = SvSTATE (coro_current); |
|
|
1279 | |
|
|
1280 | if (coro->throw) |
|
|
1281 | { |
|
|
1282 | SV *exception = coro->throw; |
|
|
1283 | coro->throw = 0; |
|
|
1284 | sv_setsv (ERRSV, exception); |
|
|
1285 | croak (0); |
|
|
1286 | } |
|
|
1287 | } |
|
|
1288 | } |
1607 | } |
1289 | } |
1608 | } |
1290 | |
|
|
1291 | struct transfer_args |
|
|
1292 | { |
|
|
1293 | struct coro *prev, *next; |
|
|
1294 | }; |
|
|
1295 | |
1609 | |
1296 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1610 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1297 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1611 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1298 | |
1612 | |
1299 | /** high level stuff ********************************************************/ |
1613 | /** high level stuff ********************************************************/ |
… | |
… | |
1301 | static int |
1615 | static int |
1302 | coro_state_destroy (pTHX_ struct coro *coro) |
1616 | coro_state_destroy (pTHX_ struct coro *coro) |
1303 | { |
1617 | { |
1304 | if (coro->flags & CF_DESTROYED) |
1618 | if (coro->flags & CF_DESTROYED) |
1305 | return 0; |
1619 | return 0; |
|
|
1620 | |
|
|
1621 | if (coro->on_destroy && !PL_dirty) |
|
|
1622 | coro->on_destroy (aTHX_ coro); |
1306 | |
1623 | |
1307 | coro->flags |= CF_DESTROYED; |
1624 | coro->flags |= CF_DESTROYED; |
1308 | |
1625 | |
1309 | if (coro->flags & CF_READY) |
1626 | if (coro->flags & CF_READY) |
1310 | { |
1627 | { |
1311 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1628 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1312 | /* alternative: look through all ready queues and remove the coro */ |
1629 | /* alternative: look through all ready queues and remove the coro */ |
1313 | LOCK; |
|
|
1314 | --coro_nready; |
1630 | --coro_nready; |
1315 | UNLOCK; |
|
|
1316 | } |
1631 | } |
1317 | else |
1632 | else |
1318 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1633 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1319 | |
1634 | |
1320 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1635 | if (coro->mainstack |
1321 | { |
1636 | && coro->mainstack != main_mainstack |
1322 | struct coro temp; |
1637 | && coro->slot |
1323 | |
1638 | && !PL_dirty) |
1324 | if (coro->flags & CF_RUNNING) |
|
|
1325 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1326 | |
|
|
1327 | save_perl (aTHX_ &temp); |
|
|
1328 | load_perl (aTHX_ coro); |
1639 | destroy_perl (aTHX_ coro); |
1329 | |
|
|
1330 | coro_destroy (aTHX_ coro); |
|
|
1331 | |
|
|
1332 | load_perl (aTHX_ &temp); |
|
|
1333 | |
|
|
1334 | coro->slot = 0; |
|
|
1335 | } |
|
|
1336 | |
|
|
1337 | cctx_destroy (coro->cctx); |
|
|
1338 | SvREFCNT_dec (coro->args); |
|
|
1339 | |
1640 | |
1340 | if (coro->next) coro->next->prev = coro->prev; |
1641 | if (coro->next) coro->next->prev = coro->prev; |
1341 | if (coro->prev) coro->prev->next = coro->next; |
1642 | if (coro->prev) coro->prev->next = coro->next; |
1342 | if (coro == coro_first) coro_first = coro->next; |
1643 | if (coro == coro_first) coro_first = coro->next; |
|
|
1644 | |
|
|
1645 | cctx_destroy (coro->cctx); |
|
|
1646 | SvREFCNT_dec (coro->startcv); |
|
|
1647 | SvREFCNT_dec (coro->args); |
|
|
1648 | SvREFCNT_dec (coro->swap_sv); |
|
|
1649 | SvREFCNT_dec (CORO_THROW); |
1343 | |
1650 | |
1344 | return 1; |
1651 | return 1; |
1345 | } |
1652 | } |
1346 | |
1653 | |
1347 | static int |
1654 | static int |
… | |
… | |
1381 | # define MGf_DUP 0 |
1688 | # define MGf_DUP 0 |
1382 | #endif |
1689 | #endif |
1383 | }; |
1690 | }; |
1384 | |
1691 | |
1385 | static void |
1692 | static void |
1386 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1693 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1387 | { |
1694 | { |
1388 | ta->prev = SvSTATE (prev_sv); |
1695 | ta->prev = SvSTATE (prev_sv); |
1389 | ta->next = SvSTATE (next_sv); |
1696 | ta->next = SvSTATE (next_sv); |
1390 | TRANSFER_CHECK (*ta); |
1697 | TRANSFER_CHECK (*ta); |
1391 | } |
1698 | } |
1392 | |
1699 | |
1393 | static void |
1700 | static void |
1394 | api_transfer (SV *prev_sv, SV *next_sv) |
1701 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1395 | { |
1702 | { |
1396 | dTHX; |
|
|
1397 | struct transfer_args ta; |
1703 | struct coro_transfer_args ta; |
1398 | |
1704 | |
1399 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1705 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1400 | TRANSFER (ta, 1); |
1706 | TRANSFER (ta, 1); |
1401 | } |
1707 | } |
1402 | |
1708 | |
1403 | /** Coro ********************************************************************/ |
1709 | /** Coro ********************************************************************/ |
1404 | |
1710 | |
1405 | static void |
1711 | INLINE void |
1406 | coro_enq (pTHX_ SV *coro_sv) |
1712 | coro_enq (pTHX_ struct coro *coro) |
1407 | { |
1713 | { |
1408 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1714 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1409 | } |
|
|
1410 | |
1715 | |
1411 | static SV * |
1716 | SvREFCNT_inc_NN (coro->hv); |
|
|
1717 | |
|
|
1718 | coro->next_ready = 0; |
|
|
1719 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1720 | ready [1] = coro; |
|
|
1721 | } |
|
|
1722 | |
|
|
1723 | INLINE struct coro * |
1412 | coro_deq (pTHX) |
1724 | coro_deq (pTHX) |
1413 | { |
1725 | { |
1414 | int prio; |
1726 | int prio; |
1415 | |
1727 | |
1416 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1728 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
1417 | if (AvFILLp (coro_ready [prio]) >= 0) |
1729 | { |
1418 | return av_shift (coro_ready [prio]); |
1730 | struct coro **ready = coro_ready [prio]; |
|
|
1731 | |
|
|
1732 | if (ready [0]) |
|
|
1733 | { |
|
|
1734 | struct coro *coro = ready [0]; |
|
|
1735 | ready [0] = coro->next_ready; |
|
|
1736 | return coro; |
|
|
1737 | } |
|
|
1738 | } |
1419 | |
1739 | |
1420 | return 0; |
1740 | return 0; |
1421 | } |
1741 | } |
1422 | |
1742 | |
|
|
1743 | static void |
|
|
1744 | invoke_sv_ready_hook_helper (void) |
|
|
1745 | { |
|
|
1746 | dTHX; |
|
|
1747 | dSP; |
|
|
1748 | |
|
|
1749 | ENTER; |
|
|
1750 | SAVETMPS; |
|
|
1751 | |
|
|
1752 | PUSHMARK (SP); |
|
|
1753 | PUTBACK; |
|
|
1754 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
|
|
1755 | |
|
|
1756 | FREETMPS; |
|
|
1757 | LEAVE; |
|
|
1758 | } |
|
|
1759 | |
1423 | static int |
1760 | static int |
1424 | api_ready (SV *coro_sv) |
1761 | api_ready (pTHX_ SV *coro_sv) |
1425 | { |
1762 | { |
1426 | dTHX; |
|
|
1427 | struct coro *coro; |
|
|
1428 | SV *sv_hook; |
|
|
1429 | void (*xs_hook)(void); |
|
|
1430 | |
|
|
1431 | if (SvROK (coro_sv)) |
|
|
1432 | coro_sv = SvRV (coro_sv); |
|
|
1433 | |
|
|
1434 | coro = SvSTATE (coro_sv); |
1763 | struct coro *coro = SvSTATE (coro_sv); |
1435 | |
1764 | |
1436 | if (coro->flags & CF_READY) |
1765 | if (coro->flags & CF_READY) |
1437 | return 0; |
1766 | return 0; |
1438 | |
1767 | |
1439 | coro->flags |= CF_READY; |
1768 | coro->flags |= CF_READY; |
1440 | |
1769 | |
1441 | LOCK; |
1770 | coro_enq (aTHX_ coro); |
1442 | |
1771 | |
1443 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1772 | if (!coro_nready++) |
1444 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1773 | if (coroapi.readyhook) |
1445 | |
1774 | coroapi.readyhook (); |
1446 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1447 | ++coro_nready; |
|
|
1448 | |
|
|
1449 | UNLOCK; |
|
|
1450 | |
|
|
1451 | if (sv_hook) |
|
|
1452 | { |
|
|
1453 | dSP; |
|
|
1454 | |
|
|
1455 | ENTER; |
|
|
1456 | SAVETMPS; |
|
|
1457 | |
|
|
1458 | PUSHMARK (SP); |
|
|
1459 | PUTBACK; |
|
|
1460 | call_sv (sv_hook, G_DISCARD); |
|
|
1461 | SPAGAIN; |
|
|
1462 | |
|
|
1463 | FREETMPS; |
|
|
1464 | LEAVE; |
|
|
1465 | } |
|
|
1466 | |
|
|
1467 | if (xs_hook) |
|
|
1468 | xs_hook (); |
|
|
1469 | |
1775 | |
1470 | return 1; |
1776 | return 1; |
1471 | } |
1777 | } |
1472 | |
1778 | |
1473 | static int |
1779 | static int |
1474 | api_is_ready (SV *coro_sv) |
1780 | api_is_ready (pTHX_ SV *coro_sv) |
1475 | { |
1781 | { |
1476 | dTHX; |
|
|
1477 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1782 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1478 | } |
1783 | } |
1479 | |
1784 | |
1480 | static void |
1785 | /* expects to own a reference to next->hv */ |
|
|
1786 | INLINE void |
1481 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1787 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1482 | { |
1788 | { |
1483 | SV *prev_sv, *next_sv; |
|
|
1484 | |
|
|
1485 | for (;;) |
|
|
1486 | { |
|
|
1487 | LOCK; |
|
|
1488 | next_sv = coro_deq (aTHX); |
|
|
1489 | |
|
|
1490 | /* nothing to schedule: call the idle handler */ |
|
|
1491 | if (expect_false (!next_sv)) |
|
|
1492 | { |
|
|
1493 | dSP; |
|
|
1494 | UNLOCK; |
|
|
1495 | |
|
|
1496 | ENTER; |
|
|
1497 | SAVETMPS; |
|
|
1498 | |
|
|
1499 | PUSHMARK (SP); |
|
|
1500 | PUTBACK; |
|
|
1501 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1502 | SPAGAIN; |
|
|
1503 | |
|
|
1504 | FREETMPS; |
|
|
1505 | LEAVE; |
|
|
1506 | continue; |
|
|
1507 | } |
|
|
1508 | |
|
|
1509 | ta->next = SvSTATE (next_sv); |
|
|
1510 | |
|
|
1511 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1512 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1513 | { |
|
|
1514 | UNLOCK; |
|
|
1515 | SvREFCNT_dec (next_sv); |
|
|
1516 | /* coro_nready is already taken care of by destroy */ |
|
|
1517 | continue; |
|
|
1518 | } |
|
|
1519 | |
|
|
1520 | --coro_nready; |
|
|
1521 | UNLOCK; |
|
|
1522 | break; |
|
|
1523 | } |
|
|
1524 | |
|
|
1525 | /* free this only after the transfer */ |
|
|
1526 | prev_sv = SvRV (coro_current); |
1789 | SV *prev_sv = SvRV (coro_current); |
|
|
1790 | |
1527 | ta->prev = SvSTATE (prev_sv); |
1791 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1792 | ta->next = next; |
|
|
1793 | |
1528 | TRANSFER_CHECK (*ta); |
1794 | TRANSFER_CHECK (*ta); |
1529 | assert (ta->next->flags & CF_READY); |
1795 | |
1530 | ta->next->flags &= ~CF_READY; |
|
|
1531 | SvRV_set (coro_current, next_sv); |
1796 | SvRV_set (coro_current, (SV *)next->hv); |
1532 | |
1797 | |
1533 | LOCK; |
|
|
1534 | free_coro_mortal (aTHX); |
1798 | free_coro_mortal (aTHX); |
1535 | coro_mortal = prev_sv; |
1799 | coro_mortal = prev_sv; |
1536 | UNLOCK; |
|
|
1537 | } |
1800 | } |
1538 | |
1801 | |
1539 | static void |
1802 | static void |
|
|
1803 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1804 | { |
|
|
1805 | for (;;) |
|
|
1806 | { |
|
|
1807 | struct coro *next = coro_deq (aTHX); |
|
|
1808 | |
|
|
1809 | if (expect_true (next)) |
|
|
1810 | { |
|
|
1811 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1812 | if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) |
|
|
1813 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1814 | else |
|
|
1815 | { |
|
|
1816 | next->flags &= ~CF_READY; |
|
|
1817 | --coro_nready; |
|
|
1818 | |
|
|
1819 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1820 | break; |
|
|
1821 | } |
|
|
1822 | } |
|
|
1823 | else |
|
|
1824 | { |
|
|
1825 | /* nothing to schedule: call the idle handler */ |
|
|
1826 | if (SvROK (sv_idle) |
|
|
1827 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1828 | { |
|
|
1829 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1830 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1831 | --coro_nready; |
|
|
1832 | } |
|
|
1833 | else |
|
|
1834 | { |
|
|
1835 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
1836 | dSP; |
|
|
1837 | |
|
|
1838 | ENTER; |
|
|
1839 | SAVETMPS; |
|
|
1840 | |
|
|
1841 | PUSHMARK (SP); |
|
|
1842 | PUTBACK; |
|
|
1843 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1844 | |
|
|
1845 | FREETMPS; |
|
|
1846 | LEAVE; |
|
|
1847 | } |
|
|
1848 | } |
|
|
1849 | } |
|
|
1850 | } |
|
|
1851 | |
|
|
1852 | INLINE void |
1540 | prepare_cede (pTHX_ struct transfer_args *ta) |
1853 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1541 | { |
1854 | { |
1542 | api_ready (coro_current); |
1855 | api_ready (aTHX_ coro_current); |
1543 | prepare_schedule (aTHX_ ta); |
1856 | prepare_schedule (aTHX_ ta); |
1544 | } |
1857 | } |
1545 | |
1858 | |
|
|
1859 | INLINE void |
|
|
1860 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1861 | { |
|
|
1862 | SV *prev = SvRV (coro_current); |
|
|
1863 | |
|
|
1864 | if (coro_nready) |
|
|
1865 | { |
|
|
1866 | prepare_schedule (aTHX_ ta); |
|
|
1867 | api_ready (aTHX_ prev); |
|
|
1868 | } |
|
|
1869 | else |
|
|
1870 | prepare_nop (aTHX_ ta); |
|
|
1871 | } |
|
|
1872 | |
|
|
1873 | static void |
|
|
1874 | api_schedule (pTHX) |
|
|
1875 | { |
|
|
1876 | struct coro_transfer_args ta; |
|
|
1877 | |
|
|
1878 | prepare_schedule (aTHX_ &ta); |
|
|
1879 | TRANSFER (ta, 1); |
|
|
1880 | } |
|
|
1881 | |
|
|
1882 | static void |
|
|
1883 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1884 | { |
|
|
1885 | struct coro_transfer_args ta; |
|
|
1886 | struct coro *next = SvSTATE (coro_sv); |
|
|
1887 | |
|
|
1888 | SvREFCNT_inc_NN (coro_sv); |
|
|
1889 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
1890 | } |
|
|
1891 | |
1546 | static int |
1892 | static int |
1547 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1893 | api_cede (pTHX) |
1548 | { |
1894 | { |
1549 | if (coro_nready) |
1895 | struct coro_transfer_args ta; |
1550 | { |
1896 | |
1551 | SV *prev = SvRV (coro_current); |
|
|
1552 | prepare_schedule (aTHX_ ta); |
1897 | prepare_cede (aTHX_ &ta); |
1553 | api_ready (prev); |
1898 | |
|
|
1899 | if (expect_true (ta.prev != ta.next)) |
|
|
1900 | { |
|
|
1901 | TRANSFER (ta, 1); |
1554 | return 1; |
1902 | return 1; |
1555 | } |
1903 | } |
1556 | else |
1904 | else |
1557 | return 0; |
1905 | return 0; |
1558 | } |
1906 | } |
1559 | |
1907 | |
1560 | static void |
|
|
1561 | api_schedule (void) |
|
|
1562 | { |
|
|
1563 | dTHX; |
|
|
1564 | struct transfer_args ta; |
|
|
1565 | |
|
|
1566 | prepare_schedule (aTHX_ &ta); |
|
|
1567 | TRANSFER (ta, 1); |
|
|
1568 | } |
|
|
1569 | |
|
|
1570 | static int |
1908 | static int |
1571 | api_cede (void) |
1909 | api_cede_notself (pTHX) |
1572 | { |
1910 | { |
1573 | dTHX; |
1911 | if (coro_nready) |
|
|
1912 | { |
1574 | struct transfer_args ta; |
1913 | struct coro_transfer_args ta; |
1575 | |
1914 | |
1576 | prepare_cede (aTHX_ &ta); |
1915 | prepare_cede_notself (aTHX_ &ta); |
1577 | |
|
|
1578 | if (expect_true (ta.prev != ta.next)) |
|
|
1579 | { |
|
|
1580 | TRANSFER (ta, 1); |
1916 | TRANSFER (ta, 1); |
1581 | return 1; |
1917 | return 1; |
1582 | } |
1918 | } |
1583 | else |
1919 | else |
1584 | return 0; |
1920 | return 0; |
1585 | } |
1921 | } |
1586 | |
1922 | |
1587 | static int |
1923 | static void |
1588 | api_cede_notself (void) |
|
|
1589 | { |
|
|
1590 | dTHX; |
|
|
1591 | struct transfer_args ta; |
|
|
1592 | |
|
|
1593 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1594 | { |
|
|
1595 | TRANSFER (ta, 1); |
|
|
1596 | return 1; |
|
|
1597 | } |
|
|
1598 | else |
|
|
1599 | return 0; |
|
|
1600 | } |
|
|
1601 | |
|
|
1602 | static void |
|
|
1603 | api_trace (SV *coro_sv, int flags) |
1924 | api_trace (pTHX_ SV *coro_sv, int flags) |
1604 | { |
1925 | { |
1605 | dTHX; |
|
|
1606 | struct coro *coro = SvSTATE (coro_sv); |
1926 | struct coro *coro = SvSTATE (coro_sv); |
1607 | |
1927 | |
|
|
1928 | if (coro->flags & CF_RUNNING) |
|
|
1929 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
1930 | |
1608 | if (flags & CC_TRACE) |
1931 | if (flags & CC_TRACE) |
1609 | { |
1932 | { |
1610 | if (!coro->cctx) |
1933 | if (!coro->cctx) |
1611 | coro->cctx = cctx_new (); |
1934 | coro->cctx = cctx_new_run (); |
1612 | else if (!(coro->cctx->flags & CC_TRACE)) |
1935 | else if (!(coro->cctx->flags & CC_TRACE)) |
1613 | croak ("cannot enable tracing on coroutine with custom stack"); |
1936 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1614 | |
1937 | |
1615 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1938 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1616 | } |
1939 | } |
1617 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1940 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1618 | { |
1941 | { |
… | |
… | |
1623 | else |
1946 | else |
1624 | coro->slot->runops = RUNOPS_DEFAULT; |
1947 | coro->slot->runops = RUNOPS_DEFAULT; |
1625 | } |
1948 | } |
1626 | } |
1949 | } |
1627 | |
1950 | |
|
|
1951 | static void |
|
|
1952 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
1953 | { |
|
|
1954 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
|
|
1955 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
1956 | |
|
|
1957 | if (on_destroyp) |
|
|
1958 | { |
|
|
1959 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
1960 | |
|
|
1961 | while (AvFILLp (on_destroy) >= 0) |
|
|
1962 | { |
|
|
1963 | dSP; /* don't disturb outer sp */ |
|
|
1964 | SV *cb = av_pop (on_destroy); |
|
|
1965 | |
|
|
1966 | PUSHMARK (SP); |
|
|
1967 | |
|
|
1968 | if (statusp) |
|
|
1969 | { |
|
|
1970 | int i; |
|
|
1971 | AV *status = (AV *)SvRV (*statusp); |
|
|
1972 | EXTEND (SP, AvFILLp (status) + 1); |
|
|
1973 | |
|
|
1974 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
1975 | PUSHs (AvARRAY (status)[i]); |
|
|
1976 | } |
|
|
1977 | |
|
|
1978 | PUTBACK; |
|
|
1979 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
|
|
1980 | } |
|
|
1981 | } |
|
|
1982 | } |
|
|
1983 | |
|
|
1984 | static void |
|
|
1985 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1986 | { |
|
|
1987 | int i; |
|
|
1988 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1989 | AV *av = newAV (); |
|
|
1990 | |
|
|
1991 | /* items are actually not so common, so optimise for this case */ |
|
|
1992 | if (items) |
|
|
1993 | { |
|
|
1994 | av_extend (av, items - 1); |
|
|
1995 | |
|
|
1996 | for (i = 0; i < items; ++i) |
|
|
1997 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
1998 | } |
|
|
1999 | |
|
|
2000 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
|
|
2001 | |
|
|
2002 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
|
|
2003 | api_ready (aTHX_ sv_manager); |
|
|
2004 | |
|
|
2005 | frame->prepare = prepare_schedule; |
|
|
2006 | frame->check = slf_check_repeat; |
|
|
2007 | |
|
|
2008 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2009 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2010 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2011 | } |
|
|
2012 | |
|
|
2013 | /*****************************************************************************/ |
|
|
2014 | /* async pool handler */ |
|
|
2015 | |
|
|
2016 | static int |
|
|
2017 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2018 | { |
|
|
2019 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2020 | struct coro *coro = (struct coro *)frame->data; |
|
|
2021 | |
|
|
2022 | if (!coro->invoke_cb) |
|
|
2023 | return 1; /* loop till we have invoke */ |
|
|
2024 | else |
|
|
2025 | { |
|
|
2026 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2027 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2028 | |
|
|
2029 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2030 | |
|
|
2031 | { |
|
|
2032 | dSP; |
|
|
2033 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2034 | PUTBACK; |
|
|
2035 | } |
|
|
2036 | |
|
|
2037 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2038 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2039 | coro->invoke_av = 0; |
|
|
2040 | |
|
|
2041 | return 0; |
|
|
2042 | } |
|
|
2043 | } |
|
|
2044 | |
|
|
2045 | static void |
|
|
2046 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2047 | { |
|
|
2048 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2049 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2050 | |
|
|
2051 | if (expect_true (coro->saved_deffh)) |
|
|
2052 | { |
|
|
2053 | /* subsequent iteration */ |
|
|
2054 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2055 | coro->saved_deffh = 0; |
|
|
2056 | |
|
|
2057 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2058 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2059 | { |
|
|
2060 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
2061 | coro->invoke_av = newAV (); |
|
|
2062 | |
|
|
2063 | frame->prepare = prepare_nop; |
|
|
2064 | } |
|
|
2065 | else |
|
|
2066 | { |
|
|
2067 | av_clear (GvAV (PL_defgv)); |
|
|
2068 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2069 | |
|
|
2070 | coro->prio = 0; |
|
|
2071 | |
|
|
2072 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2073 | api_trace (aTHX_ coro_current, 0); |
|
|
2074 | |
|
|
2075 | frame->prepare = prepare_schedule; |
|
|
2076 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2077 | } |
|
|
2078 | } |
|
|
2079 | else |
|
|
2080 | { |
|
|
2081 | /* first iteration, simply fall through */ |
|
|
2082 | frame->prepare = prepare_nop; |
|
|
2083 | } |
|
|
2084 | |
|
|
2085 | frame->check = slf_check_pool_handler; |
|
|
2086 | frame->data = (void *)coro; |
|
|
2087 | } |
|
|
2088 | |
|
|
2089 | /*****************************************************************************/ |
|
|
2090 | /* rouse callback */ |
|
|
2091 | |
|
|
2092 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2093 | |
|
|
2094 | static void |
|
|
2095 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2096 | { |
|
|
2097 | dXSARGS; |
|
|
2098 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2099 | |
|
|
2100 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2101 | { |
|
|
2102 | /* first call, set args */ |
|
|
2103 | SV *coro = SvRV (data); |
|
|
2104 | AV *av = newAV (); |
|
|
2105 | |
|
|
2106 | SvRV_set (data, (SV *)av); |
|
|
2107 | |
|
|
2108 | /* better take a full copy of the arguments */ |
|
|
2109 | while (items--) |
|
|
2110 | av_store (av, items, newSVsv (ST (items))); |
|
|
2111 | |
|
|
2112 | api_ready (aTHX_ coro); |
|
|
2113 | SvREFCNT_dec (coro); |
|
|
2114 | } |
|
|
2115 | |
|
|
2116 | XSRETURN_EMPTY; |
|
|
2117 | } |
|
|
2118 | |
|
|
2119 | static int |
|
|
2120 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2121 | { |
|
|
2122 | SV *data = (SV *)frame->data; |
|
|
2123 | |
|
|
2124 | if (CORO_THROW) |
|
|
2125 | return 0; |
|
|
2126 | |
|
|
2127 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2128 | return 1; |
|
|
2129 | |
|
|
2130 | /* now push all results on the stack */ |
|
|
2131 | { |
|
|
2132 | dSP; |
|
|
2133 | AV *av = (AV *)SvRV (data); |
|
|
2134 | int i; |
|
|
2135 | |
|
|
2136 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2137 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2138 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2139 | |
|
|
2140 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2141 | AvFILLp (av) = -1; |
|
|
2142 | av_undef (av); |
|
|
2143 | |
|
|
2144 | PUTBACK; |
|
|
2145 | } |
|
|
2146 | |
|
|
2147 | return 0; |
|
|
2148 | } |
|
|
2149 | |
|
|
2150 | static void |
|
|
2151 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2152 | { |
|
|
2153 | SV *cb; |
|
|
2154 | |
|
|
2155 | if (items) |
|
|
2156 | cb = arg [0]; |
|
|
2157 | else |
|
|
2158 | { |
|
|
2159 | struct coro *coro = SvSTATE_current; |
|
|
2160 | |
|
|
2161 | if (!coro->rouse_cb) |
|
|
2162 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2163 | |
|
|
2164 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2165 | coro->rouse_cb = 0; |
|
|
2166 | } |
|
|
2167 | |
|
|
2168 | if (!SvROK (cb) |
|
|
2169 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2170 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2171 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2172 | |
|
|
2173 | { |
|
|
2174 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2175 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2176 | |
|
|
2177 | frame->data = (void *)data; |
|
|
2178 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2179 | frame->check = slf_check_rouse_wait; |
|
|
2180 | } |
|
|
2181 | } |
|
|
2182 | |
|
|
2183 | static SV * |
|
|
2184 | coro_new_rouse_cb (pTHX) |
|
|
2185 | { |
|
|
2186 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2187 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2188 | SV *data = newRV_inc ((SV *)hv); |
|
|
2189 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2190 | |
|
|
2191 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2192 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2193 | |
|
|
2194 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2195 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2196 | |
|
|
2197 | return cb; |
|
|
2198 | } |
|
|
2199 | |
|
|
2200 | /*****************************************************************************/ |
|
|
2201 | /* schedule-like-function opcode (SLF) */ |
|
|
2202 | |
|
|
2203 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2204 | static const CV *slf_cv; |
|
|
2205 | static SV **slf_argv; |
|
|
2206 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2207 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2208 | |
|
|
2209 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2210 | /* recreate the stack frame as perl will on following calls */ |
|
|
2211 | /* since entersub cleared the stack */ |
|
|
2212 | static OP * |
|
|
2213 | pp_restore (pTHX) |
|
|
2214 | { |
|
|
2215 | int i; |
|
|
2216 | SV **SP = PL_stack_base + slf_ax; |
|
|
2217 | |
|
|
2218 | PUSHMARK (SP); |
|
|
2219 | |
|
|
2220 | EXTEND (SP, slf_argc + 1); |
|
|
2221 | |
|
|
2222 | for (i = 0; i < slf_argc; ++i) |
|
|
2223 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2224 | |
|
|
2225 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2226 | |
|
|
2227 | RETURNOP (slf_restore.op_first); |
|
|
2228 | } |
|
|
2229 | |
|
|
2230 | static void |
|
|
2231 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2232 | { |
|
|
2233 | SV **arg = (SV **)slf_frame.data; |
|
|
2234 | |
|
|
2235 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2236 | } |
|
|
2237 | |
|
|
2238 | static void |
|
|
2239 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2240 | { |
|
|
2241 | if (items != 2) |
|
|
2242 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2243 | |
|
|
2244 | frame->prepare = slf_prepare_transfer; |
|
|
2245 | frame->check = slf_check_nop; |
|
|
2246 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2247 | } |
|
|
2248 | |
|
|
2249 | static void |
|
|
2250 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2251 | { |
|
|
2252 | frame->prepare = prepare_schedule; |
|
|
2253 | frame->check = slf_check_nop; |
|
|
2254 | } |
|
|
2255 | |
|
|
2256 | static void |
|
|
2257 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2258 | { |
|
|
2259 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2260 | |
|
|
2261 | SvREFCNT_inc_NN (next->hv); |
|
|
2262 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2263 | } |
|
|
2264 | |
|
|
2265 | static void |
|
|
2266 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2267 | { |
|
|
2268 | if (!items) |
|
|
2269 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2270 | |
|
|
2271 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2272 | frame->prepare = slf_prepare_schedule_to; |
|
|
2273 | frame->check = slf_check_nop; |
|
|
2274 | } |
|
|
2275 | |
|
|
2276 | static void |
|
|
2277 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2278 | { |
|
|
2279 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2280 | |
|
|
2281 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2282 | } |
|
|
2283 | |
|
|
2284 | static void |
|
|
2285 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2286 | { |
|
|
2287 | frame->prepare = prepare_cede; |
|
|
2288 | frame->check = slf_check_nop; |
|
|
2289 | } |
|
|
2290 | |
|
|
2291 | static void |
|
|
2292 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2293 | { |
|
|
2294 | frame->prepare = prepare_cede_notself; |
|
|
2295 | frame->check = slf_check_nop; |
|
|
2296 | } |
|
|
2297 | |
|
|
2298 | /* |
|
|
2299 | * these not obviously related functions are all rolled into one |
|
|
2300 | * function to increase chances that they all will call transfer with the same |
|
|
2301 | * stack offset |
|
|
2302 | * SLF stands for "schedule-like-function". |
|
|
2303 | */ |
|
|
2304 | static OP * |
|
|
2305 | pp_slf (pTHX) |
|
|
2306 | { |
|
|
2307 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2308 | |
|
|
2309 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2310 | /* the latter happens when a new coro has been started */ |
|
|
2311 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2312 | if (expect_true (!slf_frame.prepare)) |
|
|
2313 | { |
|
|
2314 | /* first iteration */ |
|
|
2315 | dSP; |
|
|
2316 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2317 | int items = SP - arg; /* args without function object */ |
|
|
2318 | SV *gv = *sp; |
|
|
2319 | |
|
|
2320 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2321 | /* for us, divert to the real entersub */ |
|
|
2322 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2323 | || !GvCV (gv) |
|
|
2324 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2325 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2326 | |
|
|
2327 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2328 | { |
|
|
2329 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2330 | AV *av = GvAV (PL_defgv); |
|
|
2331 | arg = AvARRAY (av); |
|
|
2332 | items = AvFILLp (av) + 1; |
|
|
2333 | } |
|
|
2334 | |
|
|
2335 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2336 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2337 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2338 | |
|
|
2339 | /* pop args */ |
|
|
2340 | SP = PL_stack_base + POPMARK; |
|
|
2341 | |
|
|
2342 | PUTBACK; |
|
|
2343 | } |
|
|
2344 | |
|
|
2345 | /* now that we have a slf_frame, interpret it! */ |
|
|
2346 | /* we use a callback system not to make the code needlessly */ |
|
|
2347 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2348 | |
|
|
2349 | do |
|
|
2350 | { |
|
|
2351 | struct coro_transfer_args ta; |
|
|
2352 | |
|
|
2353 | slf_frame.prepare (aTHX_ &ta); |
|
|
2354 | TRANSFER (ta, 0); |
|
|
2355 | |
|
|
2356 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2357 | } |
|
|
2358 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2359 | |
|
|
2360 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2361 | |
|
|
2362 | /* exception handling */ |
|
|
2363 | if (expect_false (CORO_THROW)) |
|
|
2364 | { |
|
|
2365 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2366 | |
|
|
2367 | CORO_THROW = 0; |
|
|
2368 | sv_setsv (ERRSV, exception); |
|
|
2369 | croak (0); |
|
|
2370 | } |
|
|
2371 | |
|
|
2372 | /* return value handling - mostly like entersub */ |
|
|
2373 | /* make sure we put something on the stack in scalar context */ |
|
|
2374 | if (GIMME_V == G_SCALAR) |
|
|
2375 | { |
|
|
2376 | dSP; |
|
|
2377 | SV **bot = PL_stack_base + checkmark; |
|
|
2378 | |
|
|
2379 | if (sp == bot) /* too few, push undef */ |
|
|
2380 | bot [1] = &PL_sv_undef; |
|
|
2381 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2382 | bot [1] = *sp; |
|
|
2383 | |
|
|
2384 | SP = bot + 1; |
|
|
2385 | |
|
|
2386 | PUTBACK; |
|
|
2387 | } |
|
|
2388 | |
|
|
2389 | return NORMAL; |
|
|
2390 | } |
|
|
2391 | |
|
|
2392 | static void |
|
|
2393 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2394 | { |
|
|
2395 | int i; |
|
|
2396 | SV **arg = PL_stack_base + ax; |
|
|
2397 | int items = PL_stack_sp - arg + 1; |
|
|
2398 | |
|
|
2399 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2400 | |
|
|
2401 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2402 | && PL_op->op_ppaddr != pp_slf) |
|
|
2403 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2404 | |
|
|
2405 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2406 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2407 | slf_cv = cv; |
|
|
2408 | |
|
|
2409 | /* we patch the op, and then re-run the whole call */ |
|
|
2410 | /* we have to put the same argument on the stack for this to work */ |
|
|
2411 | /* and this will be done by pp_restore */ |
|
|
2412 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2413 | slf_restore.op_type = OP_CUSTOM; |
|
|
2414 | slf_restore.op_ppaddr = pp_restore; |
|
|
2415 | slf_restore.op_first = PL_op; |
|
|
2416 | |
|
|
2417 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2418 | |
|
|
2419 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2420 | { |
|
|
2421 | if (items > slf_arga) |
|
|
2422 | { |
|
|
2423 | slf_arga = items; |
|
|
2424 | free (slf_argv); |
|
|
2425 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2426 | } |
|
|
2427 | |
|
|
2428 | slf_argc = items; |
|
|
2429 | |
|
|
2430 | for (i = 0; i < items; ++i) |
|
|
2431 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2432 | } |
|
|
2433 | else |
|
|
2434 | slf_argc = 0; |
|
|
2435 | |
|
|
2436 | PL_op->op_ppaddr = pp_slf; |
|
|
2437 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2438 | |
|
|
2439 | PL_op = (OP *)&slf_restore; |
|
|
2440 | } |
|
|
2441 | |
|
|
2442 | /*****************************************************************************/ |
|
|
2443 | /* dynamic wind */ |
|
|
2444 | |
|
|
2445 | static void |
|
|
2446 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2447 | { |
|
|
2448 | dSP; |
|
|
2449 | |
|
|
2450 | PUSHSTACK; |
|
|
2451 | |
|
|
2452 | PUSHMARK (SP); |
|
|
2453 | PUTBACK; |
|
|
2454 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2455 | SPAGAIN; |
|
|
2456 | |
|
|
2457 | POPSTACK; |
|
|
2458 | } |
|
|
2459 | |
|
|
2460 | static SV * |
|
|
2461 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2462 | { |
|
|
2463 | AV *av = *avp; |
|
|
2464 | SV *res = av_pop (av); |
|
|
2465 | |
|
|
2466 | if (AvFILLp (av) < 0) |
|
|
2467 | { |
|
|
2468 | *avp = 0; |
|
|
2469 | SvREFCNT_dec (av); |
|
|
2470 | } |
|
|
2471 | |
|
|
2472 | return res; |
|
|
2473 | } |
|
|
2474 | |
|
|
2475 | static void |
|
|
2476 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2477 | { |
|
|
2478 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2479 | SvREFCNT_dec (cb); |
|
|
2480 | } |
|
|
2481 | |
|
|
2482 | static void |
|
|
2483 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2484 | { |
|
|
2485 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2486 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2487 | } |
|
|
2488 | |
|
|
2489 | /*****************************************************************************/ |
|
|
2490 | /* PerlIO::cede */ |
|
|
2491 | |
|
|
2492 | typedef struct |
|
|
2493 | { |
|
|
2494 | PerlIOBuf base; |
|
|
2495 | NV next, every; |
|
|
2496 | } PerlIOCede; |
|
|
2497 | |
|
|
2498 | static IV |
|
|
2499 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
2500 | { |
|
|
2501 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2502 | |
|
|
2503 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
2504 | self->next = nvtime () + self->every; |
|
|
2505 | |
|
|
2506 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
2507 | } |
|
|
2508 | |
|
|
2509 | static SV * |
|
|
2510 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
2511 | { |
|
|
2512 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2513 | |
|
|
2514 | return newSVnv (self->every); |
|
|
2515 | } |
|
|
2516 | |
|
|
2517 | static IV |
|
|
2518 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
2519 | { |
|
|
2520 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2521 | double now = nvtime (); |
|
|
2522 | |
|
|
2523 | if (now >= self->next) |
|
|
2524 | { |
|
|
2525 | api_cede (aTHX); |
|
|
2526 | self->next = now + self->every; |
|
|
2527 | } |
|
|
2528 | |
|
|
2529 | return PerlIOBuf_flush (aTHX_ f); |
|
|
2530 | } |
|
|
2531 | |
|
|
2532 | static PerlIO_funcs PerlIO_cede = |
|
|
2533 | { |
|
|
2534 | sizeof(PerlIO_funcs), |
|
|
2535 | "cede", |
|
|
2536 | sizeof(PerlIOCede), |
|
|
2537 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
2538 | PerlIOCede_pushed, |
|
|
2539 | PerlIOBuf_popped, |
|
|
2540 | PerlIOBuf_open, |
|
|
2541 | PerlIOBase_binmode, |
|
|
2542 | PerlIOCede_getarg, |
|
|
2543 | PerlIOBase_fileno, |
|
|
2544 | PerlIOBuf_dup, |
|
|
2545 | PerlIOBuf_read, |
|
|
2546 | PerlIOBuf_unread, |
|
|
2547 | PerlIOBuf_write, |
|
|
2548 | PerlIOBuf_seek, |
|
|
2549 | PerlIOBuf_tell, |
|
|
2550 | PerlIOBuf_close, |
|
|
2551 | PerlIOCede_flush, |
|
|
2552 | PerlIOBuf_fill, |
|
|
2553 | PerlIOBase_eof, |
|
|
2554 | PerlIOBase_error, |
|
|
2555 | PerlIOBase_clearerr, |
|
|
2556 | PerlIOBase_setlinebuf, |
|
|
2557 | PerlIOBuf_get_base, |
|
|
2558 | PerlIOBuf_bufsiz, |
|
|
2559 | PerlIOBuf_get_ptr, |
|
|
2560 | PerlIOBuf_get_cnt, |
|
|
2561 | PerlIOBuf_set_ptrcnt, |
|
|
2562 | }; |
|
|
2563 | |
|
|
2564 | /*****************************************************************************/ |
|
|
2565 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2566 | |
|
|
2567 | static SV * |
|
|
2568 | coro_waitarray_new (pTHX_ int count) |
|
|
2569 | { |
|
|
2570 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2571 | AV *av = newAV (); |
|
|
2572 | SV **ary; |
|
|
2573 | |
|
|
2574 | /* unfortunately, building manually saves memory */ |
|
|
2575 | Newx (ary, 2, SV *); |
|
|
2576 | AvALLOC (av) = ary; |
|
|
2577 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2578 | AvARRAY (av) = ary; |
|
|
2579 | #else |
|
|
2580 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2581 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2582 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2583 | #endif |
|
|
2584 | AvMAX (av) = 1; |
|
|
2585 | AvFILLp (av) = 0; |
|
|
2586 | ary [0] = newSViv (count); |
|
|
2587 | |
|
|
2588 | return newRV_noinc ((SV *)av); |
|
|
2589 | } |
|
|
2590 | |
|
|
2591 | /* semaphore */ |
|
|
2592 | |
|
|
2593 | static void |
|
|
2594 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2595 | { |
|
|
2596 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2597 | IV count = SvIVX (count_sv); |
|
|
2598 | |
|
|
2599 | count += adjust; |
|
|
2600 | SvIVX (count_sv) = count; |
|
|
2601 | |
|
|
2602 | /* now wake up as many waiters as are expected to lock */ |
|
|
2603 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2604 | { |
|
|
2605 | SV *cb; |
|
|
2606 | |
|
|
2607 | /* swap first two elements so we can shift a waiter */ |
|
|
2608 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2609 | AvARRAY (av)[1] = count_sv; |
|
|
2610 | cb = av_shift (av); |
|
|
2611 | |
|
|
2612 | if (SvOBJECT (cb)) |
|
|
2613 | { |
|
|
2614 | api_ready (aTHX_ cb); |
|
|
2615 | --count; |
|
|
2616 | } |
|
|
2617 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2618 | { |
|
|
2619 | dSP; |
|
|
2620 | PUSHMARK (SP); |
|
|
2621 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2622 | PUTBACK; |
|
|
2623 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2624 | } |
|
|
2625 | |
|
|
2626 | SvREFCNT_dec (cb); |
|
|
2627 | } |
|
|
2628 | } |
|
|
2629 | |
|
|
2630 | static void |
|
|
2631 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2632 | { |
|
|
2633 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2634 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2635 | } |
|
|
2636 | |
|
|
2637 | static int |
|
|
2638 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2639 | { |
|
|
2640 | AV *av = (AV *)frame->data; |
|
|
2641 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2642 | |
|
|
2643 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2644 | if (CORO_THROW) |
|
|
2645 | return 0; |
|
|
2646 | else if (SvIVX (count_sv) > 0) |
|
|
2647 | { |
|
|
2648 | SvSTATE_current->on_destroy = 0; |
|
|
2649 | |
|
|
2650 | if (acquire) |
|
|
2651 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2652 | else |
|
|
2653 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2654 | |
|
|
2655 | return 0; |
|
|
2656 | } |
|
|
2657 | else |
|
|
2658 | { |
|
|
2659 | int i; |
|
|
2660 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2661 | /* waiters list and only add us if we aren't in there already */ |
|
|
2662 | /* this avoids some degenerate memory usage cases */ |
|
|
2663 | |
|
|
2664 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2665 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2666 | return 1; |
|
|
2667 | |
|
|
2668 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2669 | return 1; |
|
|
2670 | } |
|
|
2671 | } |
|
|
2672 | |
|
|
2673 | static int |
|
|
2674 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2675 | { |
|
|
2676 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2677 | } |
|
|
2678 | |
|
|
2679 | static int |
|
|
2680 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2681 | { |
|
|
2682 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2683 | } |
|
|
2684 | |
|
|
2685 | static void |
|
|
2686 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2687 | { |
|
|
2688 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2689 | |
|
|
2690 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2691 | { |
|
|
2692 | frame->data = (void *)av; |
|
|
2693 | frame->prepare = prepare_nop; |
|
|
2694 | } |
|
|
2695 | else |
|
|
2696 | { |
|
|
2697 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2698 | |
|
|
2699 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2700 | frame->prepare = prepare_schedule; |
|
|
2701 | |
|
|
2702 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2703 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2704 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2705 | } |
|
|
2706 | } |
|
|
2707 | |
|
|
2708 | static void |
|
|
2709 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2710 | { |
|
|
2711 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2712 | frame->check = slf_check_semaphore_down; |
|
|
2713 | } |
|
|
2714 | |
|
|
2715 | static void |
|
|
2716 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2717 | { |
|
|
2718 | if (items >= 2) |
|
|
2719 | { |
|
|
2720 | /* callback form */ |
|
|
2721 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2722 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
2723 | |
|
|
2724 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
2725 | |
|
|
2726 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2727 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2728 | |
|
|
2729 | frame->prepare = prepare_nop; |
|
|
2730 | frame->check = slf_check_nop; |
|
|
2731 | } |
|
|
2732 | else |
|
|
2733 | { |
|
|
2734 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2735 | frame->check = slf_check_semaphore_wait; |
|
|
2736 | } |
|
|
2737 | } |
|
|
2738 | |
|
|
2739 | /* signal */ |
|
|
2740 | |
|
|
2741 | static void |
|
|
2742 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2743 | { |
|
|
2744 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2745 | |
|
|
2746 | /* now signal count waiters */ |
|
|
2747 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2748 | { |
|
|
2749 | SV *cb; |
|
|
2750 | |
|
|
2751 | /* swap first two elements so we can shift a waiter */ |
|
|
2752 | cb = AvARRAY (av)[0]; |
|
|
2753 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2754 | AvARRAY (av)[1] = cb; |
|
|
2755 | |
|
|
2756 | cb = av_shift (av); |
|
|
2757 | |
|
|
2758 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
2759 | { |
|
|
2760 | dSP; |
|
|
2761 | PUSHMARK (SP); |
|
|
2762 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2763 | PUTBACK; |
|
|
2764 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2765 | } |
|
|
2766 | else |
|
|
2767 | { |
|
|
2768 | api_ready (aTHX_ cb); |
|
|
2769 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2770 | } |
|
|
2771 | |
|
|
2772 | SvREFCNT_dec (cb); |
|
|
2773 | |
|
|
2774 | --count; |
|
|
2775 | } |
|
|
2776 | } |
|
|
2777 | |
|
|
2778 | static int |
|
|
2779 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2780 | { |
|
|
2781 | /* if we are about to throw, also stop waiting */ |
|
|
2782 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2783 | } |
|
|
2784 | |
|
|
2785 | static void |
|
|
2786 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2787 | { |
|
|
2788 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2789 | |
|
|
2790 | if (items >= 2) |
|
|
2791 | { |
|
|
2792 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
2793 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
2794 | |
|
|
2795 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2796 | coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ |
|
|
2797 | |
|
|
2798 | frame->prepare = prepare_nop; |
|
|
2799 | frame->check = slf_check_nop; |
|
|
2800 | } |
|
|
2801 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
2802 | { |
|
|
2803 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2804 | frame->prepare = prepare_nop; |
|
|
2805 | frame->check = slf_check_nop; |
|
|
2806 | } |
|
|
2807 | else |
|
|
2808 | { |
|
|
2809 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
2810 | |
|
|
2811 | av_push (av, waiter); |
|
|
2812 | |
|
|
2813 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2814 | frame->prepare = prepare_schedule; |
|
|
2815 | frame->check = slf_check_signal_wait; |
|
|
2816 | } |
|
|
2817 | } |
|
|
2818 | |
|
|
2819 | /*****************************************************************************/ |
|
|
2820 | /* Coro::AIO */ |
|
|
2821 | |
|
|
2822 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2823 | |
|
|
2824 | /* helper storage struct */ |
|
|
2825 | struct io_state |
|
|
2826 | { |
|
|
2827 | int errorno; |
|
|
2828 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2829 | int laststatval; |
|
|
2830 | Stat_t statcache; |
|
|
2831 | }; |
|
|
2832 | |
|
|
2833 | static void |
|
|
2834 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2835 | { |
|
|
2836 | dXSARGS; |
|
|
2837 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
2838 | SV *coro = av_pop (state); |
|
|
2839 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2840 | |
|
|
2841 | av_extend (state, items - 1); |
|
|
2842 | |
|
|
2843 | sv_upgrade (data_sv, SVt_PV); |
|
|
2844 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2845 | SvPOK_only (data_sv); |
|
|
2846 | |
|
|
2847 | { |
|
|
2848 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2849 | |
|
|
2850 | data->errorno = errno; |
|
|
2851 | data->laststype = PL_laststype; |
|
|
2852 | data->laststatval = PL_laststatval; |
|
|
2853 | data->statcache = PL_statcache; |
|
|
2854 | } |
|
|
2855 | |
|
|
2856 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2857 | { |
|
|
2858 | int i; |
|
|
2859 | |
|
|
2860 | for (i = 0; i < items; ++i) |
|
|
2861 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2862 | } |
|
|
2863 | |
|
|
2864 | av_push (state, data_sv); |
|
|
2865 | |
|
|
2866 | api_ready (aTHX_ coro); |
|
|
2867 | SvREFCNT_dec (coro); |
|
|
2868 | SvREFCNT_dec ((AV *)state); |
|
|
2869 | } |
|
|
2870 | |
|
|
2871 | static int |
|
|
2872 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2873 | { |
|
|
2874 | AV *state = (AV *)frame->data; |
|
|
2875 | |
|
|
2876 | /* if we are about to throw, return early */ |
|
|
2877 | /* this does not cancel the aio request, but at least */ |
|
|
2878 | /* it quickly returns */ |
|
|
2879 | if (CORO_THROW) |
|
|
2880 | return 0; |
|
|
2881 | |
|
|
2882 | /* one element that is an RV? repeat! */ |
|
|
2883 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2884 | return 1; |
|
|
2885 | |
|
|
2886 | /* restore status */ |
|
|
2887 | { |
|
|
2888 | SV *data_sv = av_pop (state); |
|
|
2889 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2890 | |
|
|
2891 | errno = data->errorno; |
|
|
2892 | PL_laststype = data->laststype; |
|
|
2893 | PL_laststatval = data->laststatval; |
|
|
2894 | PL_statcache = data->statcache; |
|
|
2895 | |
|
|
2896 | SvREFCNT_dec (data_sv); |
|
|
2897 | } |
|
|
2898 | |
|
|
2899 | /* push result values */ |
|
|
2900 | { |
|
|
2901 | dSP; |
|
|
2902 | int i; |
|
|
2903 | |
|
|
2904 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2905 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2906 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2907 | |
|
|
2908 | PUTBACK; |
|
|
2909 | } |
|
|
2910 | |
|
|
2911 | return 0; |
|
|
2912 | } |
|
|
2913 | |
|
|
2914 | static void |
|
|
2915 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2916 | { |
|
|
2917 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2918 | SV *coro_hv = SvRV (coro_current); |
|
|
2919 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2920 | |
|
|
2921 | /* put our coroutine id on the state arg */ |
|
|
2922 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2923 | |
|
|
2924 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2925 | if (coro->prio) |
|
|
2926 | { |
|
|
2927 | dSP; |
|
|
2928 | |
|
|
2929 | static SV *prio_cv; |
|
|
2930 | static SV *prio_sv; |
|
|
2931 | |
|
|
2932 | if (expect_false (!prio_cv)) |
|
|
2933 | { |
|
|
2934 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2935 | prio_sv = newSViv (0); |
|
|
2936 | } |
|
|
2937 | |
|
|
2938 | PUSHMARK (SP); |
|
|
2939 | sv_setiv (prio_sv, coro->prio); |
|
|
2940 | XPUSHs (prio_sv); |
|
|
2941 | |
|
|
2942 | PUTBACK; |
|
|
2943 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2944 | } |
|
|
2945 | |
|
|
2946 | /* now call the original request */ |
|
|
2947 | { |
|
|
2948 | dSP; |
|
|
2949 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2950 | int i; |
|
|
2951 | |
|
|
2952 | PUSHMARK (SP); |
|
|
2953 | |
|
|
2954 | /* first push all args to the stack */ |
|
|
2955 | EXTEND (SP, items + 1); |
|
|
2956 | |
|
|
2957 | for (i = 0; i < items; ++i) |
|
|
2958 | PUSHs (arg [i]); |
|
|
2959 | |
|
|
2960 | /* now push the callback closure */ |
|
|
2961 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2962 | |
|
|
2963 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2964 | PUTBACK; |
|
|
2965 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2966 | } |
|
|
2967 | |
|
|
2968 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2969 | frame->data = (void *)state; |
|
|
2970 | frame->prepare = prepare_schedule; |
|
|
2971 | frame->check = slf_check_aio_req; |
|
|
2972 | } |
|
|
2973 | |
|
|
2974 | static void |
|
|
2975 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2976 | { |
|
|
2977 | dXSARGS; |
|
|
2978 | |
|
|
2979 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2980 | |
|
|
2981 | XSRETURN_EMPTY; |
|
|
2982 | } |
|
|
2983 | |
|
|
2984 | /*****************************************************************************/ |
|
|
2985 | |
|
|
2986 | #if CORO_CLONE |
|
|
2987 | # include "clone.c" |
|
|
2988 | #endif |
|
|
2989 | |
|
|
2990 | /*****************************************************************************/ |
|
|
2991 | |
|
|
2992 | static SV * |
|
|
2993 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
|
|
2994 | { |
|
|
2995 | SV *coro_sv; |
|
|
2996 | struct coro *coro; |
|
|
2997 | MAGIC *mg; |
|
|
2998 | HV *hv; |
|
|
2999 | SV *cb; |
|
|
3000 | int i; |
|
|
3001 | |
|
|
3002 | if (argc > 0) |
|
|
3003 | { |
|
|
3004 | cb = s_get_cv_croak (argv [0]); |
|
|
3005 | |
|
|
3006 | if (!is_coro) |
|
|
3007 | { |
|
|
3008 | if (CvISXSUB (cb)) |
|
|
3009 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3010 | |
|
|
3011 | if (!CvROOT (cb)) |
|
|
3012 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3013 | } |
|
|
3014 | } |
|
|
3015 | |
|
|
3016 | Newz (0, coro, 1, struct coro); |
|
|
3017 | coro->args = newAV (); |
|
|
3018 | coro->flags = CF_NEW; |
|
|
3019 | |
|
|
3020 | if (coro_first) coro_first->prev = coro; |
|
|
3021 | coro->next = coro_first; |
|
|
3022 | coro_first = coro; |
|
|
3023 | |
|
|
3024 | coro->hv = hv = newHV (); |
|
|
3025 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3026 | mg->mg_flags |= MGf_DUP; |
|
|
3027 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
|
|
3028 | |
|
|
3029 | if (argc > 0) |
|
|
3030 | { |
|
|
3031 | av_extend (coro->args, argc + is_coro - 1); |
|
|
3032 | |
|
|
3033 | if (is_coro) |
|
|
3034 | { |
|
|
3035 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3036 | cb = (SV *)cv_coro_run; |
|
|
3037 | } |
|
|
3038 | |
|
|
3039 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3040 | |
|
|
3041 | for (i = 1; i < argc; i++) |
|
|
3042 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3043 | } |
|
|
3044 | |
|
|
3045 | return coro_sv; |
|
|
3046 | } |
|
|
3047 | |
1628 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3048 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1629 | |
3049 | |
1630 | PROTOTYPES: DISABLE |
3050 | PROTOTYPES: DISABLE |
1631 | |
3051 | |
1632 | BOOT: |
3052 | BOOT: |
1633 | { |
3053 | { |
1634 | #ifdef USE_ITHREADS |
3054 | #ifdef USE_ITHREADS |
1635 | MUTEX_INIT (&coro_mutex); |
3055 | # if CORO_PTHREAD |
|
|
3056 | coro_thx = PERL_GET_CONTEXT; |
|
|
3057 | # endif |
1636 | #endif |
3058 | #endif |
1637 | BOOT_PAGESIZE; |
3059 | BOOT_PAGESIZE; |
|
|
3060 | |
|
|
3061 | cctx_current = cctx_new_empty (); |
1638 | |
3062 | |
1639 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3063 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1640 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3064 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1641 | |
3065 | |
1642 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
3066 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
… | |
… | |
1658 | main_top_env = PL_top_env; |
3082 | main_top_env = PL_top_env; |
1659 | |
3083 | |
1660 | while (main_top_env->je_prev) |
3084 | while (main_top_env->je_prev) |
1661 | main_top_env = main_top_env->je_prev; |
3085 | main_top_env = main_top_env->je_prev; |
1662 | |
3086 | |
|
|
3087 | { |
|
|
3088 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
3089 | |
|
|
3090 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
3091 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
3092 | |
|
|
3093 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3094 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
3095 | } |
|
|
3096 | |
1663 | coroapi.ver = CORO_API_VERSION; |
3097 | coroapi.ver = CORO_API_VERSION; |
1664 | coroapi.rev = CORO_API_REVISION; |
3098 | coroapi.rev = CORO_API_REVISION; |
|
|
3099 | |
1665 | coroapi.transfer = api_transfer; |
3100 | coroapi.transfer = api_transfer; |
1666 | |
3101 | |
|
|
3102 | coroapi.sv_state = SvSTATE_; |
|
|
3103 | coroapi.execute_slf = api_execute_slf; |
|
|
3104 | coroapi.prepare_nop = prepare_nop; |
|
|
3105 | coroapi.prepare_schedule = prepare_schedule; |
|
|
3106 | coroapi.prepare_cede = prepare_cede; |
|
|
3107 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
3108 | |
|
|
3109 | { |
|
|
3110 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
3111 | |
|
|
3112 | if (!svp) croak ("Time::HiRes is required"); |
|
|
3113 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
3114 | |
|
|
3115 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
3116 | |
|
|
3117 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
|
3118 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
3119 | } |
|
|
3120 | |
1667 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3121 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
1668 | } |
3122 | } |
1669 | |
3123 | |
1670 | SV * |
3124 | SV * |
1671 | new (char *klass, ...) |
3125 | new (SV *klass, ...) |
|
|
3126 | ALIAS: |
|
|
3127 | Coro::new = 1 |
1672 | CODE: |
3128 | CODE: |
1673 | { |
3129 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
1674 | struct coro *coro; |
3130 | OUTPUT: |
1675 | MAGIC *mg; |
|
|
1676 | HV *hv; |
|
|
1677 | int i; |
|
|
1678 | |
|
|
1679 | Newz (0, coro, 1, struct coro); |
|
|
1680 | coro->args = newAV (); |
|
|
1681 | coro->flags = CF_NEW; |
|
|
1682 | |
|
|
1683 | if (coro_first) coro_first->prev = coro; |
|
|
1684 | coro->next = coro_first; |
|
|
1685 | coro_first = coro; |
|
|
1686 | |
|
|
1687 | coro->hv = hv = newHV (); |
|
|
1688 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
1689 | mg->mg_flags |= MGf_DUP; |
|
|
1690 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1691 | |
|
|
1692 | av_extend (coro->args, items - 1); |
|
|
1693 | for (i = 1; i < items; i++) |
|
|
1694 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1695 | } |
|
|
1696 | OUTPUT: |
|
|
1697 | RETVAL |
3131 | RETVAL |
1698 | |
3132 | |
1699 | # these not obviously related functions are all rolled into the same xs |
|
|
1700 | # function to increase chances that they all will call transfer with the same |
|
|
1701 | # stack offset |
|
|
1702 | void |
3133 | void |
1703 | _set_stacklevel (...) |
3134 | transfer (...) |
1704 | ALIAS: |
3135 | PROTOTYPE: $$ |
1705 | Coro::State::transfer = 1 |
3136 | CODE: |
1706 | Coro::schedule = 2 |
3137 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1707 | Coro::cede = 3 |
|
|
1708 | Coro::cede_notself = 4 |
|
|
1709 | CODE: |
|
|
1710 | { |
|
|
1711 | struct transfer_args ta; |
|
|
1712 | |
|
|
1713 | PUTBACK; |
|
|
1714 | switch (ix) |
|
|
1715 | { |
|
|
1716 | case 0: |
|
|
1717 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1718 | ta.next = 0; |
|
|
1719 | break; |
|
|
1720 | |
|
|
1721 | case 1: |
|
|
1722 | if (items != 2) |
|
|
1723 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1724 | |
|
|
1725 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1726 | break; |
|
|
1727 | |
|
|
1728 | case 2: |
|
|
1729 | prepare_schedule (aTHX_ &ta); |
|
|
1730 | break; |
|
|
1731 | |
|
|
1732 | case 3: |
|
|
1733 | prepare_cede (aTHX_ &ta); |
|
|
1734 | break; |
|
|
1735 | |
|
|
1736 | case 4: |
|
|
1737 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1738 | XSRETURN_EMPTY; |
|
|
1739 | |
|
|
1740 | break; |
|
|
1741 | } |
|
|
1742 | SPAGAIN; |
|
|
1743 | |
|
|
1744 | BARRIER; |
|
|
1745 | PUTBACK; |
|
|
1746 | TRANSFER (ta, 0); |
|
|
1747 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1748 | /* be extra careful not to ever do anything after TRANSFER */ |
|
|
1749 | } |
|
|
1750 | |
3138 | |
1751 | bool |
3139 | bool |
1752 | _destroy (SV *coro_sv) |
3140 | _destroy (SV *coro_sv) |
1753 | CODE: |
3141 | CODE: |
1754 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
3142 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
… | |
… | |
1759 | _exit (int code) |
3147 | _exit (int code) |
1760 | PROTOTYPE: $ |
3148 | PROTOTYPE: $ |
1761 | CODE: |
3149 | CODE: |
1762 | _exit (code); |
3150 | _exit (code); |
1763 | |
3151 | |
|
|
3152 | SV * |
|
|
3153 | clone (Coro::State coro) |
|
|
3154 | CODE: |
|
|
3155 | { |
|
|
3156 | #if CORO_CLONE |
|
|
3157 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3158 | MAGIC *mg; |
|
|
3159 | /* TODO: too much duplication */ |
|
|
3160 | ncoro->hv = newHV (); |
|
|
3161 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3162 | mg->mg_flags |= MGf_DUP; |
|
|
3163 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3164 | #else |
|
|
3165 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3166 | #endif |
|
|
3167 | } |
|
|
3168 | OUTPUT: |
|
|
3169 | RETVAL |
|
|
3170 | |
1764 | int |
3171 | int |
1765 | cctx_stacksize (int new_stacksize = 0) |
3172 | cctx_stacksize (int new_stacksize = 0) |
|
|
3173 | PROTOTYPE: ;$ |
1766 | CODE: |
3174 | CODE: |
1767 | RETVAL = coro_stacksize; |
3175 | RETVAL = cctx_stacksize; |
1768 | if (new_stacksize) |
3176 | if (new_stacksize) |
|
|
3177 | { |
1769 | coro_stacksize = new_stacksize; |
3178 | cctx_stacksize = new_stacksize; |
|
|
3179 | ++cctx_gen; |
|
|
3180 | } |
1770 | OUTPUT: |
3181 | OUTPUT: |
1771 | RETVAL |
3182 | RETVAL |
1772 | |
3183 | |
1773 | int |
3184 | int |
|
|
3185 | cctx_max_idle (int max_idle = 0) |
|
|
3186 | PROTOTYPE: ;$ |
|
|
3187 | CODE: |
|
|
3188 | RETVAL = cctx_max_idle; |
|
|
3189 | if (max_idle > 1) |
|
|
3190 | cctx_max_idle = max_idle; |
|
|
3191 | OUTPUT: |
|
|
3192 | RETVAL |
|
|
3193 | |
|
|
3194 | int |
1774 | cctx_count () |
3195 | cctx_count () |
|
|
3196 | PROTOTYPE: |
1775 | CODE: |
3197 | CODE: |
1776 | RETVAL = cctx_count; |
3198 | RETVAL = cctx_count; |
1777 | OUTPUT: |
3199 | OUTPUT: |
1778 | RETVAL |
3200 | RETVAL |
1779 | |
3201 | |
1780 | int |
3202 | int |
1781 | cctx_idle () |
3203 | cctx_idle () |
|
|
3204 | PROTOTYPE: |
1782 | CODE: |
3205 | CODE: |
1783 | RETVAL = cctx_idle; |
3206 | RETVAL = cctx_idle; |
1784 | OUTPUT: |
3207 | OUTPUT: |
1785 | RETVAL |
3208 | RETVAL |
1786 | |
3209 | |
1787 | void |
3210 | void |
1788 | list () |
3211 | list () |
|
|
3212 | PROTOTYPE: |
1789 | PPCODE: |
3213 | PPCODE: |
1790 | { |
3214 | { |
1791 | struct coro *coro; |
3215 | struct coro *coro; |
1792 | for (coro = coro_first; coro; coro = coro->next) |
3216 | for (coro = coro_first; coro; coro = coro->next) |
1793 | if (coro->hv) |
3217 | if (coro->hv) |
… | |
… | |
1798 | call (Coro::State coro, SV *coderef) |
3222 | call (Coro::State coro, SV *coderef) |
1799 | ALIAS: |
3223 | ALIAS: |
1800 | eval = 1 |
3224 | eval = 1 |
1801 | CODE: |
3225 | CODE: |
1802 | { |
3226 | { |
1803 | if (coro->mainstack) |
3227 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1804 | { |
3228 | { |
1805 | struct coro temp; |
3229 | struct coro *current = SvSTATE_current; |
1806 | |
3230 | |
1807 | if (!(coro->flags & CF_RUNNING)) |
3231 | if (current != coro) |
1808 | { |
3232 | { |
1809 | PUTBACK; |
3233 | PUTBACK; |
1810 | save_perl (aTHX_ &temp); |
3234 | save_perl (aTHX_ current); |
1811 | load_perl (aTHX_ coro); |
3235 | load_perl (aTHX_ coro); |
|
|
3236 | SPAGAIN; |
1812 | } |
3237 | } |
1813 | |
3238 | |
1814 | { |
|
|
1815 | dSP; |
|
|
1816 | ENTER; |
|
|
1817 | SAVETMPS; |
|
|
1818 | PUTBACK; |
|
|
1819 | PUSHSTACK; |
3239 | PUSHSTACK; |
|
|
3240 | |
1820 | PUSHMARK (SP); |
3241 | PUSHMARK (SP); |
|
|
3242 | PUTBACK; |
1821 | |
3243 | |
1822 | if (ix) |
3244 | if (ix) |
1823 | eval_sv (coderef, 0); |
3245 | eval_sv (coderef, 0); |
1824 | else |
3246 | else |
1825 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3247 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1826 | |
3248 | |
1827 | POPSTACK; |
3249 | POPSTACK; |
1828 | SPAGAIN; |
3250 | SPAGAIN; |
1829 | FREETMPS; |
|
|
1830 | LEAVE; |
|
|
1831 | PUTBACK; |
|
|
1832 | } |
|
|
1833 | |
3251 | |
1834 | if (!(coro->flags & CF_RUNNING)) |
3252 | if (current != coro) |
1835 | { |
3253 | { |
|
|
3254 | PUTBACK; |
1836 | save_perl (aTHX_ coro); |
3255 | save_perl (aTHX_ coro); |
1837 | load_perl (aTHX_ &temp); |
3256 | load_perl (aTHX_ current); |
1838 | SPAGAIN; |
3257 | SPAGAIN; |
1839 | } |
3258 | } |
1840 | } |
3259 | } |
1841 | } |
3260 | } |
1842 | |
3261 | |
… | |
… | |
1846 | ALIAS: |
3265 | ALIAS: |
1847 | is_ready = CF_READY |
3266 | is_ready = CF_READY |
1848 | is_running = CF_RUNNING |
3267 | is_running = CF_RUNNING |
1849 | is_new = CF_NEW |
3268 | is_new = CF_NEW |
1850 | is_destroyed = CF_DESTROYED |
3269 | is_destroyed = CF_DESTROYED |
|
|
3270 | is_suspended = CF_SUSPENDED |
1851 | CODE: |
3271 | CODE: |
1852 | RETVAL = boolSV (coro->flags & ix); |
3272 | RETVAL = boolSV (coro->flags & ix); |
1853 | OUTPUT: |
3273 | OUTPUT: |
1854 | RETVAL |
3274 | RETVAL |
1855 | |
3275 | |
1856 | void |
3276 | void |
|
|
3277 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
3278 | PROTOTYPE: $;$ |
|
|
3279 | CODE: |
|
|
3280 | { |
|
|
3281 | struct coro *current = SvSTATE_current; |
|
|
3282 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
|
|
3283 | SvREFCNT_dec (*throwp); |
|
|
3284 | SvGETMAGIC (throw); |
|
|
3285 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
3286 | } |
|
|
3287 | |
|
|
3288 | void |
1857 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3289 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3290 | PROTOTYPE: $;$ |
|
|
3291 | C_ARGS: aTHX_ coro, flags |
1858 | |
3292 | |
1859 | SV * |
3293 | SV * |
1860 | has_cctx (Coro::State coro) |
3294 | has_cctx (Coro::State coro) |
1861 | PROTOTYPE: $ |
3295 | PROTOTYPE: $ |
1862 | CODE: |
3296 | CODE: |
1863 | RETVAL = boolSV (!!coro->cctx); |
3297 | /* maybe manage the running flag differently */ |
|
|
3298 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
1864 | OUTPUT: |
3299 | OUTPUT: |
1865 | RETVAL |
3300 | RETVAL |
1866 | |
3301 | |
1867 | int |
3302 | int |
1868 | is_traced (Coro::State coro) |
3303 | is_traced (Coro::State coro) |
… | |
… | |
1870 | CODE: |
3305 | CODE: |
1871 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
3306 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1872 | OUTPUT: |
3307 | OUTPUT: |
1873 | RETVAL |
3308 | RETVAL |
1874 | |
3309 | |
1875 | IV |
3310 | UV |
1876 | rss (Coro::State coro) |
3311 | rss (Coro::State coro) |
1877 | PROTOTYPE: $ |
3312 | PROTOTYPE: $ |
1878 | ALIAS: |
3313 | ALIAS: |
1879 | usecount = 1 |
3314 | usecount = 1 |
1880 | CODE: |
3315 | CODE: |
… | |
… | |
1886 | OUTPUT: |
3321 | OUTPUT: |
1887 | RETVAL |
3322 | RETVAL |
1888 | |
3323 | |
1889 | void |
3324 | void |
1890 | force_cctx () |
3325 | force_cctx () |
|
|
3326 | PROTOTYPE: |
1891 | CODE: |
3327 | CODE: |
1892 | struct coro *coro = SvSTATE (coro_current); |
|
|
1893 | coro->cctx->idle_sp = 0; |
3328 | cctx_current->idle_sp = 0; |
1894 | |
|
|
1895 | void |
|
|
1896 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
1897 | PROTOTYPE: $;$ |
|
|
1898 | CODE: |
|
|
1899 | SvREFCNT_dec (self->throw); |
|
|
1900 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1901 | |
3329 | |
1902 | void |
3330 | void |
1903 | swap_defsv (Coro::State self) |
3331 | swap_defsv (Coro::State self) |
1904 | PROTOTYPE: $ |
3332 | PROTOTYPE: $ |
1905 | ALIAS: |
3333 | ALIAS: |
1906 | swap_defav = 1 |
3334 | swap_defav = 1 |
1907 | CODE: |
3335 | CODE: |
1908 | if (!self->slot) |
3336 | if (!self->slot) |
1909 | croak ("cannot swap state with coroutine that has no saved state"); |
3337 | croak ("cannot swap state with coroutine that has no saved state,"); |
1910 | else |
3338 | else |
1911 | { |
3339 | { |
1912 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
3340 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
1913 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3341 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
1914 | |
3342 | |
1915 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3343 | SV *tmp = *src; *src = *dst; *dst = tmp; |
1916 | } |
3344 | } |
1917 | |
3345 | |
|
|
3346 | void |
|
|
3347 | cancel (Coro::State self) |
|
|
3348 | CODE: |
|
|
3349 | coro_state_destroy (aTHX_ self); |
|
|
3350 | coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */ |
|
|
3351 | |
|
|
3352 | |
|
|
3353 | SV * |
|
|
3354 | enable_times (int enabled = enable_times) |
|
|
3355 | CODE: |
|
|
3356 | { |
|
|
3357 | RETVAL = boolSV (enable_times); |
|
|
3358 | |
|
|
3359 | if (enabled != enable_times) |
|
|
3360 | { |
|
|
3361 | enable_times = enabled; |
|
|
3362 | |
|
|
3363 | coro_times_update (); |
|
|
3364 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3365 | } |
|
|
3366 | } |
|
|
3367 | OUTPUT: |
|
|
3368 | RETVAL |
|
|
3369 | |
|
|
3370 | void |
|
|
3371 | times (Coro::State self) |
|
|
3372 | PPCODE: |
|
|
3373 | { |
|
|
3374 | struct coro *current = SvSTATE (coro_current); |
|
|
3375 | |
|
|
3376 | if (expect_false (current == self)) |
|
|
3377 | { |
|
|
3378 | coro_times_update (); |
|
|
3379 | coro_times_add (SvSTATE (coro_current)); |
|
|
3380 | } |
|
|
3381 | |
|
|
3382 | EXTEND (SP, 2); |
|
|
3383 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3384 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3385 | |
|
|
3386 | if (expect_false (current == self)) |
|
|
3387 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3388 | } |
|
|
3389 | |
|
|
3390 | void |
|
|
3391 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
|
|
3392 | CODE: |
|
|
3393 | { |
|
|
3394 | struct coro *current = SvSTATE_current; |
|
|
3395 | |
|
|
3396 | if (current == coro) |
|
|
3397 | SWAP_SVS (current); |
|
|
3398 | |
|
|
3399 | if (!coro->swap_sv) |
|
|
3400 | coro->swap_sv = newAV (); |
|
|
3401 | |
|
|
3402 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv ))); |
|
|
3403 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv))); |
|
|
3404 | |
|
|
3405 | if (current == coro) |
|
|
3406 | SWAP_SVS (current); |
|
|
3407 | } |
|
|
3408 | |
|
|
3409 | |
1918 | MODULE = Coro::State PACKAGE = Coro |
3410 | MODULE = Coro::State PACKAGE = Coro |
1919 | |
3411 | |
1920 | BOOT: |
3412 | BOOT: |
1921 | { |
3413 | { |
1922 | int i; |
|
|
1923 | |
|
|
1924 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
1925 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3414 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
1926 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3415 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
1927 | |
3416 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
3417 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
1928 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3418 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
1929 | SvREADONLY_on (coro_current); |
3419 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3420 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3421 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3422 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
1930 | |
3423 | |
|
|
3424 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3425 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3426 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3427 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
|
|
3428 | |
1931 | coro_stash = gv_stashpv ("Coro", TRUE); |
3429 | coro_stash = gv_stashpv ("Coro", TRUE); |
1932 | |
3430 | |
1933 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3431 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
1934 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3432 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
1935 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3433 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
1936 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3434 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
1937 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3435 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
1938 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3436 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
1939 | |
|
|
1940 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
1941 | coro_ready[i] = newAV (); |
|
|
1942 | |
3437 | |
1943 | { |
3438 | { |
1944 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
3439 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1945 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
1946 | |
3440 | |
1947 | coroapi.schedule = api_schedule; |
3441 | coroapi.schedule = api_schedule; |
|
|
3442 | coroapi.schedule_to = api_schedule_to; |
1948 | coroapi.cede = api_cede; |
3443 | coroapi.cede = api_cede; |
1949 | coroapi.cede_notself = api_cede_notself; |
3444 | coroapi.cede_notself = api_cede_notself; |
1950 | coroapi.ready = api_ready; |
3445 | coroapi.ready = api_ready; |
1951 | coroapi.is_ready = api_is_ready; |
3446 | coroapi.is_ready = api_is_ready; |
1952 | coroapi.nready = &coro_nready; |
3447 | coroapi.nready = coro_nready; |
1953 | coroapi.current = coro_current; |
3448 | coroapi.current = coro_current; |
1954 | |
3449 | |
1955 | GCoroAPI = &coroapi; |
3450 | /*GCoroAPI = &coroapi;*/ |
1956 | sv_setiv (sv, (IV)&coroapi); |
3451 | sv_setiv (sv, (IV)&coroapi); |
1957 | SvREADONLY_on (sv); |
3452 | SvREADONLY_on (sv); |
1958 | } |
3453 | } |
1959 | } |
3454 | } |
|
|
3455 | |
|
|
3456 | SV * |
|
|
3457 | async (...) |
|
|
3458 | PROTOTYPE: &@ |
|
|
3459 | CODE: |
|
|
3460 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
3461 | api_ready (aTHX_ RETVAL); |
|
|
3462 | OUTPUT: |
|
|
3463 | RETVAL |
|
|
3464 | |
|
|
3465 | void |
|
|
3466 | terminate (...) |
|
|
3467 | CODE: |
|
|
3468 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3469 | |
|
|
3470 | void |
|
|
3471 | schedule (...) |
|
|
3472 | CODE: |
|
|
3473 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3474 | |
|
|
3475 | void |
|
|
3476 | schedule_to (...) |
|
|
3477 | CODE: |
|
|
3478 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3479 | |
|
|
3480 | void |
|
|
3481 | cede_to (...) |
|
|
3482 | CODE: |
|
|
3483 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3484 | |
|
|
3485 | void |
|
|
3486 | cede (...) |
|
|
3487 | CODE: |
|
|
3488 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3489 | |
|
|
3490 | void |
|
|
3491 | cede_notself (...) |
|
|
3492 | CODE: |
|
|
3493 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1960 | |
3494 | |
1961 | void |
3495 | void |
1962 | _set_current (SV *current) |
3496 | _set_current (SV *current) |
1963 | PROTOTYPE: $ |
3497 | PROTOTYPE: $ |
1964 | CODE: |
3498 | CODE: |
1965 | SvREFCNT_dec (SvRV (coro_current)); |
3499 | SvREFCNT_dec (SvRV (coro_current)); |
1966 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
3500 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
1967 | |
3501 | |
1968 | void |
3502 | void |
1969 | _set_readyhook (SV *hook) |
3503 | _set_readyhook (SV *hook) |
1970 | PROTOTYPE: $ |
3504 | PROTOTYPE: $ |
1971 | CODE: |
3505 | CODE: |
1972 | LOCK; |
|
|
1973 | SvREFCNT_dec (coro_readyhook); |
3506 | SvREFCNT_dec (coro_readyhook); |
|
|
3507 | SvGETMAGIC (hook); |
|
|
3508 | if (SvOK (hook)) |
|
|
3509 | { |
1974 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
3510 | coro_readyhook = newSVsv (hook); |
1975 | UNLOCK; |
3511 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
3512 | } |
|
|
3513 | else |
|
|
3514 | { |
|
|
3515 | coro_readyhook = 0; |
|
|
3516 | CORO_READYHOOK = 0; |
|
|
3517 | } |
1976 | |
3518 | |
1977 | int |
3519 | int |
1978 | prio (Coro::State coro, int newprio = 0) |
3520 | prio (Coro::State coro, int newprio = 0) |
|
|
3521 | PROTOTYPE: $;$ |
1979 | ALIAS: |
3522 | ALIAS: |
1980 | nice = 1 |
3523 | nice = 1 |
1981 | CODE: |
3524 | CODE: |
1982 | { |
3525 | { |
1983 | RETVAL = coro->prio; |
3526 | RETVAL = coro->prio; |
… | |
… | |
1985 | if (items > 1) |
3528 | if (items > 1) |
1986 | { |
3529 | { |
1987 | if (ix) |
3530 | if (ix) |
1988 | newprio = coro->prio - newprio; |
3531 | newprio = coro->prio - newprio; |
1989 | |
3532 | |
1990 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
3533 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
1991 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
3534 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
1992 | |
3535 | |
1993 | coro->prio = newprio; |
3536 | coro->prio = newprio; |
1994 | } |
3537 | } |
1995 | } |
3538 | } |
1996 | OUTPUT: |
3539 | OUTPUT: |
… | |
… | |
1998 | |
3541 | |
1999 | SV * |
3542 | SV * |
2000 | ready (SV *self) |
3543 | ready (SV *self) |
2001 | PROTOTYPE: $ |
3544 | PROTOTYPE: $ |
2002 | CODE: |
3545 | CODE: |
2003 | RETVAL = boolSV (api_ready (self)); |
3546 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2004 | OUTPUT: |
3547 | OUTPUT: |
2005 | RETVAL |
3548 | RETVAL |
2006 | |
3549 | |
2007 | int |
3550 | int |
2008 | nready (...) |
3551 | nready (...) |
… | |
… | |
2010 | CODE: |
3553 | CODE: |
2011 | RETVAL = coro_nready; |
3554 | RETVAL = coro_nready; |
2012 | OUTPUT: |
3555 | OUTPUT: |
2013 | RETVAL |
3556 | RETVAL |
2014 | |
3557 | |
2015 | # for async_pool speedup |
|
|
2016 | void |
3558 | void |
2017 | _pool_1 (SV *cb) |
3559 | suspend (Coro::State self) |
|
|
3560 | PROTOTYPE: $ |
2018 | CODE: |
3561 | CODE: |
2019 | { |
3562 | self->flags |= CF_SUSPENDED; |
2020 | struct coro *coro = SvSTATE (coro_current); |
|
|
2021 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2022 | AV *defav = GvAV (PL_defgv); |
|
|
2023 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2024 | AV *invoke_av; |
|
|
2025 | int i, len; |
|
|
2026 | |
3563 | |
2027 | if (!invoke) |
3564 | void |
|
|
3565 | resume (Coro::State self) |
|
|
3566 | PROTOTYPE: $ |
|
|
3567 | CODE: |
|
|
3568 | self->flags &= ~CF_SUSPENDED; |
|
|
3569 | |
|
|
3570 | void |
|
|
3571 | _pool_handler (...) |
|
|
3572 | CODE: |
|
|
3573 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
3574 | |
|
|
3575 | void |
|
|
3576 | async_pool (SV *cv, ...) |
|
|
3577 | PROTOTYPE: &@ |
|
|
3578 | PPCODE: |
|
|
3579 | { |
|
|
3580 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3581 | AV *av = newAV (); |
|
|
3582 | SV *cb = ST (0); |
|
|
3583 | int i; |
|
|
3584 | |
|
|
3585 | av_extend (av, items - 2); |
|
|
3586 | for (i = 1; i < items; ++i) |
|
|
3587 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
3588 | |
|
|
3589 | if ((SV *)hv == &PL_sv_undef) |
2028 | { |
3590 | { |
2029 | SV *old = PL_diehook; |
3591 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
2030 | PL_diehook = 0; |
3592 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
2031 | SvREFCNT_dec (old); |
3593 | SvREFCNT_dec (sv); |
2032 | croak ("\3async_pool terminate\2\n"); |
|
|
2033 | } |
3594 | } |
2034 | |
3595 | |
2035 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2036 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
|
|
2037 | |
|
|
2038 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2039 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2040 | |
|
|
2041 | invoke_av = (AV *)SvRV (invoke); |
|
|
2042 | len = av_len (invoke_av); |
|
|
2043 | |
|
|
2044 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2045 | |
|
|
2046 | if (len > 0) |
|
|
2047 | { |
3596 | { |
2048 | av_fill (defav, len - 1); |
3597 | struct coro *coro = SvSTATE_hv (hv); |
2049 | for (i = 0; i < len; ++i) |
3598 | |
2050 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
3599 | assert (!coro->invoke_cb); |
|
|
3600 | assert (!coro->invoke_av); |
|
|
3601 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3602 | coro->invoke_av = av; |
2051 | } |
3603 | } |
2052 | |
3604 | |
|
|
3605 | api_ready (aTHX_ (SV *)hv); |
|
|
3606 | |
|
|
3607 | if (GIMME_V != G_VOID) |
|
|
3608 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3609 | else |
2053 | SvREFCNT_dec (invoke); |
3610 | SvREFCNT_dec (hv); |
2054 | } |
3611 | } |
2055 | |
3612 | |
2056 | void |
3613 | SV * |
2057 | _pool_2 (SV *cb) |
3614 | rouse_cb () |
|
|
3615 | PROTOTYPE: |
2058 | CODE: |
3616 | CODE: |
2059 | { |
3617 | RETVAL = coro_new_rouse_cb (aTHX); |
2060 | struct coro *coro = SvSTATE (coro_current); |
|
|
2061 | |
|
|
2062 | sv_setsv (cb, &PL_sv_undef); |
|
|
2063 | |
|
|
2064 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2065 | coro->saved_deffh = 0; |
|
|
2066 | |
|
|
2067 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
2068 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2069 | { |
|
|
2070 | SV *old = PL_diehook; |
|
|
2071 | PL_diehook = 0; |
|
|
2072 | SvREFCNT_dec (old); |
|
|
2073 | croak ("\3async_pool terminate\2\n"); |
|
|
2074 | } |
|
|
2075 | |
|
|
2076 | av_clear (GvAV (PL_defgv)); |
|
|
2077 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2078 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2079 | |
|
|
2080 | coro->prio = 0; |
|
|
2081 | |
|
|
2082 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2083 | api_trace (coro_current, 0); |
|
|
2084 | |
|
|
2085 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2086 | } |
|
|
2087 | |
|
|
2088 | |
|
|
2089 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2090 | |
|
|
2091 | SV * |
|
|
2092 | _get_state () |
|
|
2093 | CODE: |
|
|
2094 | { |
|
|
2095 | struct io_state *data; |
|
|
2096 | |
|
|
2097 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
2098 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
2099 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
2100 | SvPOK_only (RETVAL); |
|
|
2101 | |
|
|
2102 | data->errorno = errno; |
|
|
2103 | data->laststype = PL_laststype; |
|
|
2104 | data->laststatval = PL_laststatval; |
|
|
2105 | data->statcache = PL_statcache; |
|
|
2106 | } |
|
|
2107 | OUTPUT: |
3618 | OUTPUT: |
2108 | RETVAL |
3619 | RETVAL |
2109 | |
3620 | |
2110 | void |
3621 | void |
2111 | _set_state (char *data_) |
3622 | rouse_wait (...) |
|
|
3623 | PROTOTYPE: ;$ |
|
|
3624 | PPCODE: |
|
|
3625 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
3626 | |
|
|
3627 | void |
|
|
3628 | on_enter (SV *block) |
|
|
3629 | ALIAS: |
|
|
3630 | on_leave = 1 |
2112 | PROTOTYPE: $ |
3631 | PROTOTYPE: & |
2113 | CODE: |
3632 | CODE: |
2114 | { |
3633 | { |
2115 | struct io_state *data = (void *)data_; |
3634 | struct coro *coro = SvSTATE_current; |
|
|
3635 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
2116 | |
3636 | |
2117 | errno = data->errorno; |
3637 | block = s_get_cv_croak (block); |
2118 | PL_laststype = data->laststype; |
3638 | |
2119 | PL_laststatval = data->laststatval; |
3639 | if (!*avp) |
2120 | PL_statcache = data->statcache; |
3640 | *avp = newAV (); |
|
|
3641 | |
|
|
3642 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
3643 | |
|
|
3644 | if (!ix) |
|
|
3645 | on_enterleave_call (aTHX_ block); |
|
|
3646 | |
|
|
3647 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3648 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
3649 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
2121 | } |
3650 | } |
|
|
3651 | |
|
|
3652 | |
|
|
3653 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
3654 | |
|
|
3655 | BOOT: |
|
|
3656 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
3657 | |
|
|
3658 | |
|
|
3659 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
3660 | |
|
|
3661 | SV * |
|
|
3662 | new (SV *klass, SV *count = 0) |
|
|
3663 | CODE: |
|
|
3664 | { |
|
|
3665 | int semcnt = 1; |
|
|
3666 | |
|
|
3667 | if (count) |
|
|
3668 | { |
|
|
3669 | SvGETMAGIC (count); |
|
|
3670 | |
|
|
3671 | if (SvOK (count)) |
|
|
3672 | semcnt = SvIV (count); |
|
|
3673 | } |
|
|
3674 | |
|
|
3675 | RETVAL = sv_bless ( |
|
|
3676 | coro_waitarray_new (aTHX_ semcnt), |
|
|
3677 | GvSTASH (CvGV (cv)) |
|
|
3678 | ); |
|
|
3679 | } |
|
|
3680 | OUTPUT: |
|
|
3681 | RETVAL |
|
|
3682 | |
|
|
3683 | # helper for Coro::Channel and others |
|
|
3684 | SV * |
|
|
3685 | _alloc (int count) |
|
|
3686 | CODE: |
|
|
3687 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3688 | OUTPUT: |
|
|
3689 | RETVAL |
|
|
3690 | |
|
|
3691 | SV * |
|
|
3692 | count (SV *self) |
|
|
3693 | CODE: |
|
|
3694 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3695 | OUTPUT: |
|
|
3696 | RETVAL |
|
|
3697 | |
|
|
3698 | void |
|
|
3699 | up (SV *self, int adjust = 1) |
|
|
3700 | ALIAS: |
|
|
3701 | adjust = 1 |
|
|
3702 | CODE: |
|
|
3703 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
3704 | |
|
|
3705 | void |
|
|
3706 | down (...) |
|
|
3707 | CODE: |
|
|
3708 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3709 | |
|
|
3710 | void |
|
|
3711 | wait (...) |
|
|
3712 | CODE: |
|
|
3713 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3714 | |
|
|
3715 | void |
|
|
3716 | try (SV *self) |
|
|
3717 | PPCODE: |
|
|
3718 | { |
|
|
3719 | AV *av = (AV *)SvRV (self); |
|
|
3720 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3721 | IV count = SvIVX (count_sv); |
|
|
3722 | |
|
|
3723 | if (count > 0) |
|
|
3724 | { |
|
|
3725 | --count; |
|
|
3726 | SvIVX (count_sv) = count; |
|
|
3727 | XSRETURN_YES; |
|
|
3728 | } |
|
|
3729 | else |
|
|
3730 | XSRETURN_NO; |
|
|
3731 | } |
|
|
3732 | |
|
|
3733 | void |
|
|
3734 | waiters (SV *self) |
|
|
3735 | PPCODE: |
|
|
3736 | { |
|
|
3737 | AV *av = (AV *)SvRV (self); |
|
|
3738 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3739 | |
|
|
3740 | if (GIMME_V == G_SCALAR) |
|
|
3741 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
3742 | else |
|
|
3743 | { |
|
|
3744 | int i; |
|
|
3745 | EXTEND (SP, wcount); |
|
|
3746 | for (i = 1; i <= wcount; ++i) |
|
|
3747 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
3748 | } |
|
|
3749 | } |
|
|
3750 | |
|
|
3751 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
3752 | |
|
|
3753 | void |
|
|
3754 | _may_delete (SV *sem, int count, int extra_refs) |
|
|
3755 | PPCODE: |
|
|
3756 | { |
|
|
3757 | AV *av = (AV *)SvRV (sem); |
|
|
3758 | |
|
|
3759 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
|
|
3760 | && AvFILLp (av) == 0 /* no waiters, just count */ |
|
|
3761 | && SvIV (AvARRAY (av)[0]) == count) |
|
|
3762 | XSRETURN_YES; |
|
|
3763 | |
|
|
3764 | XSRETURN_NO; |
|
|
3765 | } |
|
|
3766 | |
|
|
3767 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3768 | |
|
|
3769 | SV * |
|
|
3770 | new (SV *klass) |
|
|
3771 | CODE: |
|
|
3772 | RETVAL = sv_bless ( |
|
|
3773 | coro_waitarray_new (aTHX_ 0), |
|
|
3774 | GvSTASH (CvGV (cv)) |
|
|
3775 | ); |
|
|
3776 | OUTPUT: |
|
|
3777 | RETVAL |
|
|
3778 | |
|
|
3779 | void |
|
|
3780 | wait (...) |
|
|
3781 | CODE: |
|
|
3782 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3783 | |
|
|
3784 | void |
|
|
3785 | broadcast (SV *self) |
|
|
3786 | CODE: |
|
|
3787 | { |
|
|
3788 | AV *av = (AV *)SvRV (self); |
|
|
3789 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3790 | } |
|
|
3791 | |
|
|
3792 | void |
|
|
3793 | send (SV *self) |
|
|
3794 | CODE: |
|
|
3795 | { |
|
|
3796 | AV *av = (AV *)SvRV (self); |
|
|
3797 | |
|
|
3798 | if (AvFILLp (av)) |
|
|
3799 | coro_signal_wake (aTHX_ av, 1); |
|
|
3800 | else |
|
|
3801 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
3802 | } |
|
|
3803 | |
|
|
3804 | IV |
|
|
3805 | awaited (SV *self) |
|
|
3806 | CODE: |
|
|
3807 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3808 | OUTPUT: |
|
|
3809 | RETVAL |
2122 | |
3810 | |
2123 | |
3811 | |
2124 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
3812 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2125 | |
3813 | |
2126 | BOOT: |
3814 | BOOT: |
2127 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
3815 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2128 | |
3816 | |
2129 | SV * |
3817 | void |
2130 | _schedule (...) |
3818 | _schedule (...) |
2131 | PROTOTYPE: @ |
|
|
2132 | CODE: |
3819 | CODE: |
2133 | { |
3820 | { |
2134 | static int incede; |
3821 | static int incede; |
2135 | |
3822 | |
2136 | api_cede_notself (); |
3823 | api_cede_notself (aTHX); |
2137 | |
3824 | |
2138 | ++incede; |
3825 | ++incede; |
2139 | while (coro_nready >= incede && api_cede ()) |
3826 | while (coro_nready >= incede && api_cede (aTHX)) |
2140 | ; |
3827 | ; |
2141 | |
3828 | |
2142 | sv_setsv (sv_activity, &PL_sv_undef); |
3829 | sv_setsv (sv_activity, &PL_sv_undef); |
2143 | if (coro_nready >= incede) |
3830 | if (coro_nready >= incede) |
2144 | { |
3831 | { |
2145 | PUSHMARK (SP); |
3832 | PUSHMARK (SP); |
2146 | PUTBACK; |
3833 | PUTBACK; |
2147 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
3834 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2148 | SPAGAIN; |
|
|
2149 | } |
3835 | } |
2150 | |
3836 | |
2151 | --incede; |
3837 | --incede; |
2152 | } |
3838 | } |
2153 | |
3839 | |
|
|
3840 | |
|
|
3841 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
3842 | |
|
|
3843 | void |
|
|
3844 | _register (char *target, char *proto, SV *req) |
|
|
3845 | CODE: |
|
|
3846 | { |
|
|
3847 | SV *req_cv = s_get_cv_croak (req); |
|
|
3848 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3849 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3850 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3851 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3852 | } |
|
|
3853 | |
|
|
3854 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
3855 | |
|
|
3856 | void |
|
|
3857 | patch_pp_sselect () |
|
|
3858 | CODE: |
|
|
3859 | if (!coro_old_pp_sselect) |
|
|
3860 | { |
|
|
3861 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
3862 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
3863 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
3864 | } |
|
|
3865 | |
|
|
3866 | void |
|
|
3867 | unpatch_pp_sselect () |
|
|
3868 | CODE: |
|
|
3869 | if (coro_old_pp_sselect) |
|
|
3870 | { |
|
|
3871 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
3872 | coro_old_pp_sselect = 0; |
|
|
3873 | } |
|
|
3874 | |
|
|
3875 | |