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1 | /* this works around a bug in mingw32 providing a non-working setjmp */ |
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2 | #define USE_NO_MINGW_SETJMP_TWO_ARGS |
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3 | |
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4 | #define NDEBUG 1 |
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5 | |
1 | #include "libcoro/coro.c" |
6 | #include "libcoro/coro.c" |
2 | |
7 | |
3 | #define PERL_NO_GET_CONTEXT |
8 | #define PERL_NO_GET_CONTEXT |
4 | #define PERL_EXT |
9 | #define PERL_EXT |
5 | |
10 | |
6 | #include "EXTERN.h" |
11 | #include "EXTERN.h" |
7 | #include "perl.h" |
12 | #include "perl.h" |
8 | #include "XSUB.h" |
13 | #include "XSUB.h" |
9 | #include "perliol.h" |
14 | #include "perliol.h" |
10 | |
15 | |
11 | #include "patchlevel.h" |
16 | #include "schmorp.h" |
12 | |
17 | |
13 | #include <stdio.h> |
18 | #include <stdio.h> |
14 | #include <errno.h> |
19 | #include <errno.h> |
15 | #include <assert.h> |
20 | #include <assert.h> |
16 | |
21 | |
17 | #ifdef WIN32 |
22 | #ifndef SVs_PADSTALE |
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23 | # define SVs_PADSTALE 0 |
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24 | #endif |
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25 | |
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26 | #if defined(_WIN32) |
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27 | # undef HAS_GETTIMEOFDAY |
18 | # undef setjmp |
28 | # undef setjmp |
19 | # undef longjmp |
29 | # undef longjmp |
20 | # undef _exit |
30 | # undef _exit |
21 | # define setjmp _setjmp // deep magic, don't ask |
31 | # define setjmp _setjmp /* deep magic */ |
22 | #else |
32 | #else |
23 | # include <inttypes.h> /* most portable stdint.h */ |
33 | # include <inttypes.h> /* most portable stdint.h */ |
24 | #endif |
34 | #endif |
25 | |
35 | |
26 | #ifdef HAVE_MMAP |
36 | #ifdef HAVE_MMAP |
… | |
… | |
51 | #endif |
61 | #endif |
52 | |
62 | |
53 | /* the maximum number of idle cctx that will be pooled */ |
63 | /* the maximum number of idle cctx that will be pooled */ |
54 | static int cctx_max_idle = 4; |
64 | static int cctx_max_idle = 4; |
55 | |
65 | |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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57 | (PERL_REVISION > (a) \ |
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58 | || (PERL_REVISION == (a) \ |
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59 | && (PERL_VERSION > (b) \ |
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60 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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61 | |
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62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
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63 | # ifndef PL_ppaddr |
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64 | # define PL_ppaddr ppaddr |
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65 | # endif |
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66 | # ifndef call_sv |
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67 | # define call_sv perl_call_sv |
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68 | # endif |
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69 | # ifndef get_sv |
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70 | # define get_sv perl_get_sv |
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71 | # endif |
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72 | # ifndef get_cv |
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73 | # define get_cv perl_get_cv |
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74 | # endif |
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75 | # ifndef IS_PADGV |
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76 | # define IS_PADGV(v) 0 |
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77 | # endif |
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78 | # ifndef IS_PADCONST |
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79 | # define IS_PADCONST(v) 0 |
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80 | # endif |
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81 | #endif |
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82 | |
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83 | /* 5.11 */ |
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84 | #ifndef CxHASARGS |
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85 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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86 | #endif |
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87 | |
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88 | /* 5.10.0 */ |
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89 | #ifndef SvREFCNT_inc_NN |
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90 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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91 | #endif |
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92 | |
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93 | /* 5.8.8 */ |
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94 | #ifndef GV_NOTQUAL |
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95 | # define GV_NOTQUAL 0 |
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96 | #endif |
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97 | #ifndef newSV |
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98 | # define newSV(l) NEWSV(0,l) |
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99 | #endif |
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100 | |
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101 | /* 5.8.7 */ |
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102 | #ifndef SvRV_set |
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103 | # define SvRV_set(s,v) SvRV(s) = (v) |
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104 | #endif |
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105 | |
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106 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
66 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
107 | # undef CORO_STACKGUARD |
67 | # undef CORO_STACKGUARD |
108 | #endif |
68 | #endif |
109 | |
69 | |
110 | #ifndef CORO_STACKGUARD |
70 | #ifndef CORO_STACKGUARD |
… | |
… | |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
76 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
117 | #endif |
77 | #endif |
118 | |
78 | |
119 | /* The next macros try to return the current stack pointer, in an as |
79 | /* The next macros try to return the current stack pointer, in an as |
120 | * portable way as possible. */ |
80 | * portable way as possible. */ |
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81 | #if __GNUC__ >= 4 |
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82 | # define dSTACKLEVEL int stacklevel_dummy |
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83 | # define STACKLEVEL __builtin_frame_address (0) |
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84 | #else |
121 | #define dSTACKLEVEL volatile char stacklevel |
85 | # define dSTACKLEVEL volatile void *stacklevel |
122 | #define STACKLEVEL ((void *)&stacklevel) |
86 | # define STACKLEVEL ((void *)&stacklevel) |
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87 | #endif |
123 | |
88 | |
124 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
89 | #define IN_DESTRUCT PL_dirty |
125 | |
90 | |
126 | #if __GNUC__ >= 3 |
91 | #if __GNUC__ >= 3 |
127 | # define attribute(x) __attribute__(x) |
92 | # define attribute(x) __attribute__(x) |
128 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
93 | # define expect(expr,value) __builtin_expect ((expr), (value)) |
129 | # define INLINE static inline |
94 | # define INLINE static inline |
130 | #else |
95 | #else |
131 | # define attribute(x) |
96 | # define attribute(x) |
132 | # define expect(expr,value) (expr) |
97 | # define expect(expr,value) (expr) |
133 | # define INLINE static |
98 | # define INLINE static |
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137 | #define expect_true(expr) expect ((expr) != 0, 1) |
102 | #define expect_true(expr) expect ((expr) != 0, 1) |
138 | |
103 | |
139 | #define NOINLINE attribute ((noinline)) |
104 | #define NOINLINE attribute ((noinline)) |
140 | |
105 | |
141 | #include "CoroAPI.h" |
106 | #include "CoroAPI.h" |
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107 | #define GCoroAPI (&coroapi) /* very sneaky */ |
142 | |
108 | |
143 | #ifdef USE_ITHREADS |
109 | #ifdef USE_ITHREADS |
144 | |
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145 | static perl_mutex coro_lock; |
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146 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
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147 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
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148 | # if CORO_PTHREAD |
110 | # if CORO_PTHREAD |
149 | static void *coro_thx; |
111 | static void *coro_thx; |
150 | # endif |
112 | # endif |
151 | |
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152 | #else |
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153 | |
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154 | # define LOCK (void)0 |
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155 | # define UNLOCK (void)0 |
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156 | |
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157 | #endif |
113 | #endif |
158 | |
114 | |
159 | # undef LOCK |
115 | #ifdef __linux |
160 | # define LOCK (void)0 |
116 | # include <time.h> /* for timespec */ |
161 | # undef UNLOCK |
117 | # include <syscall.h> /* for SYS_* */ |
162 | # define UNLOCK (void)0 |
118 | # ifdef SYS_clock_gettime |
163 | |
119 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
164 | /* helper storage struct for Coro::AIO */ |
120 | # define CORO_CLOCK_MONOTONIC 1 |
165 | struct io_state |
121 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
166 | { |
122 | # endif |
167 | AV *res; |
123 | #endif |
168 | int errorno; |
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169 | I32 laststype; /* U16 in 5.10.0 */ |
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170 | int laststatval; |
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171 | Stat_t statcache; |
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172 | }; |
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173 | |
124 | |
174 | static double (*nvtime)(); /* so why doesn't it take void? */ |
125 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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126 | static void (*u2time)(pTHX_ UV ret[2]); |
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127 | |
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128 | /* we hijack an hopefully unused CV flag for our purposes */ |
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129 | #define CVf_SLF 0x4000 |
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130 | static OP *pp_slf (pTHX); |
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131 | static void slf_destroy (pTHX_ struct coro *coro); |
175 | |
132 | |
176 | static U32 cctx_gen; |
133 | static U32 cctx_gen; |
177 | static size_t cctx_stacksize = CORO_STACKSIZE; |
134 | static size_t cctx_stacksize = CORO_STACKSIZE; |
178 | static struct CoroAPI coroapi; |
135 | static struct CoroAPI coroapi; |
179 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
136 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
180 | static JMPENV *main_top_env; |
137 | static JMPENV *main_top_env; |
181 | static HV *coro_state_stash, *coro_stash; |
138 | static HV *coro_state_stash, *coro_stash; |
182 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
139 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
183 | static volatile struct coro *transfer_next; |
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184 | |
140 | |
185 | struct transfer_args |
141 | static AV *av_destroy; /* destruction queue */ |
186 | { |
142 | static SV *sv_manager; /* the manager coro */ |
187 | struct coro *prev, *next; |
143 | static SV *sv_idle; /* $Coro::idle */ |
188 | }; |
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189 | |
144 | |
190 | static GV *irsgv; /* $/ */ |
145 | static GV *irsgv; /* $/ */ |
191 | static GV *stdoutgv; /* *STDOUT */ |
146 | static GV *stdoutgv; /* *STDOUT */ |
192 | static SV *rv_diehook; |
147 | static SV *rv_diehook; |
193 | static SV *rv_warnhook; |
148 | static SV *rv_warnhook; |
194 | static HV *hv_sig; /* %SIG */ |
149 | static HV *hv_sig; /* %SIG */ |
195 | |
150 | |
196 | /* async_pool helper stuff */ |
151 | /* async_pool helper stuff */ |
197 | static SV *sv_pool_rss; |
152 | static SV *sv_pool_rss; |
198 | static SV *sv_pool_size; |
153 | static SV *sv_pool_size; |
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154 | static SV *sv_async_pool_idle; /* description string */ |
199 | static AV *av_async_pool; |
155 | static AV *av_async_pool; /* idle pool */ |
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156 | static SV *sv_Coro; /* class string */ |
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157 | static CV *cv_pool_handler; |
200 | |
158 | |
201 | /* Coro::AnyEvent */ |
159 | /* Coro::AnyEvent */ |
202 | static SV *sv_activity; |
160 | static SV *sv_activity; |
203 | |
161 | |
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162 | /* enable processtime/realtime profiling */ |
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163 | static char enable_times; |
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164 | typedef U32 coro_ts[2]; |
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165 | static coro_ts time_real, time_cpu; |
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166 | static char times_valid; |
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167 | |
204 | static struct coro_cctx *cctx_first; |
168 | static struct coro_cctx *cctx_first; |
205 | static int cctx_count, cctx_idle; |
169 | static int cctx_count, cctx_idle; |
206 | |
170 | |
207 | enum { |
171 | enum |
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172 | { |
208 | CC_MAPPED = 0x01, |
173 | CC_MAPPED = 0x01, |
209 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
174 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
210 | CC_TRACE = 0x04, |
175 | CC_TRACE = 0x04, |
211 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
176 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
212 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
177 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
213 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
178 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
214 | }; |
179 | }; |
215 | |
180 | |
216 | /* this is a structure representing a c-level coroutine */ |
181 | /* this is a structure representing a c-level coroutine */ |
217 | typedef struct coro_cctx { |
182 | typedef struct coro_cctx |
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183 | { |
218 | struct coro_cctx *next; |
184 | struct coro_cctx *next; |
219 | |
185 | |
220 | /* the stack */ |
186 | /* the stack */ |
221 | void *sptr; |
187 | void *sptr; |
222 | size_t ssize; |
188 | size_t ssize; |
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232 | int valgrind_id; |
198 | int valgrind_id; |
233 | #endif |
199 | #endif |
234 | unsigned char flags; |
200 | unsigned char flags; |
235 | } coro_cctx; |
201 | } coro_cctx; |
236 | |
202 | |
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203 | static coro_cctx *cctx_current; /* the currently running cctx */ |
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204 | |
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205 | /*****************************************************************************/ |
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206 | |
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207 | static MGVTBL coro_state_vtbl; |
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208 | |
237 | enum { |
209 | enum |
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210 | { |
238 | CF_RUNNING = 0x0001, /* coroutine is running */ |
211 | CF_RUNNING = 0x0001, /* coroutine is running */ |
239 | CF_READY = 0x0002, /* coroutine is ready */ |
212 | CF_READY = 0x0002, /* coroutine is ready */ |
240 | CF_NEW = 0x0004, /* has never been switched to */ |
213 | CF_NEW = 0x0004, /* has never been switched to */ |
241 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
214 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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215 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
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216 | CF_NOCANCEL = 0x0020, /* cannot cancel, set slf_frame.data to 1 (hackish) */ |
242 | }; |
217 | }; |
243 | |
218 | |
244 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
219 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
245 | typedef struct { |
220 | typedef struct |
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221 | { |
246 | SV *defsv; |
222 | SV *defsv; |
247 | AV *defav; |
223 | AV *defav; |
248 | SV *errsv; |
224 | SV *errsv; |
249 | SV *irsgv; |
225 | SV *irsgv; |
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226 | HV *hinthv; |
250 | #define VAR(name,type) type name; |
227 | #define VAR(name,type) type name; |
251 | # include "state.h" |
228 | # include "state.h" |
252 | #undef VAR |
229 | #undef VAR |
253 | } perl_slots; |
230 | } perl_slots; |
254 | |
231 | |
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232 | // how many context stack entries do we need for perl_slots |
255 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
233 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
256 | |
234 | |
257 | /* this is a structure representing a perl-level coroutine */ |
235 | /* this is a structure representing a perl-level coroutine */ |
258 | struct coro { |
236 | struct coro |
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237 | { |
259 | /* the c coroutine allocated to this perl coroutine, if any */ |
238 | /* the C coroutine allocated to this perl coroutine, if any */ |
260 | coro_cctx *cctx; |
239 | coro_cctx *cctx; |
261 | |
240 | |
262 | /* process data */ |
241 | /* ready queue */ |
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242 | struct coro *next_ready; |
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243 | |
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244 | /* state data */ |
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245 | struct CoroSLF slf_frame; /* saved slf frame */ |
263 | AV *mainstack; |
246 | AV *mainstack; |
264 | perl_slots *slot; /* basically the saved sp */ |
247 | perl_slots *slot; /* basically the saved sp */ |
265 | |
248 | |
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249 | CV *startcv; /* the CV to execute */ |
266 | AV *args; /* data associated with this coroutine (initial args) */ |
250 | AV *args; /* data associated with this coroutine (initial args) */ |
267 | int refcnt; /* coroutines are refcounted, yes */ |
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268 | int flags; /* CF_ flags */ |
251 | int flags; /* CF_ flags */ |
269 | HV *hv; /* the perl hash associated with this coro, if any */ |
252 | HV *hv; /* the perl hash associated with this coro, if any */ |
270 | |
253 | |
271 | /* statistics */ |
254 | /* statistics */ |
272 | int usecount; /* number of transfers to this coro */ |
255 | int usecount; /* number of transfers to this coro */ |
273 | |
256 | |
274 | /* coro process data */ |
257 | /* coro process data */ |
275 | int prio; |
258 | int prio; |
276 | SV *throw; /* exception to be thrown */ |
259 | SV *except; /* exception to be thrown */ |
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260 | SV *rouse_cb; /* last rouse callback */ |
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261 | AV *on_destroy; /* callbacks or coros to notify on destroy */ |
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262 | AV *status; /* the exit status list */ |
277 | |
263 | |
278 | /* async_pool */ |
264 | /* async_pool */ |
279 | SV *saved_deffh; |
265 | SV *saved_deffh; |
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266 | SV *invoke_cb; |
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267 | AV *invoke_av; |
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268 | |
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269 | /* on_enter/on_leave */ |
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270 | AV *on_enter; |
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271 | AV *on_leave; |
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272 | |
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273 | /* swap_sv */ |
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274 | AV *swap_sv; |
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275 | |
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276 | /* times */ |
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277 | coro_ts t_cpu, t_real; |
280 | |
278 | |
281 | /* linked list */ |
279 | /* linked list */ |
282 | struct coro *next, *prev; |
280 | struct coro *next, *prev; |
283 | }; |
281 | }; |
284 | |
282 | |
285 | typedef struct coro *Coro__State; |
283 | typedef struct coro *Coro__State; |
286 | typedef struct coro *Coro__State_or_hashref; |
284 | typedef struct coro *Coro__State_or_hashref; |
287 | |
285 | |
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286 | /* the following variables are effectively part of the perl context */ |
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287 | /* and get copied between struct coro and these variables */ |
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288 | /* the main reason we don't support windows process emulation */ |
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289 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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290 | |
288 | /** Coro ********************************************************************/ |
291 | /** Coro ********************************************************************/ |
289 | |
292 | |
290 | #define PRIO_MAX 3 |
293 | #define CORO_PRIO_MAX 3 |
291 | #define PRIO_HIGH 1 |
294 | #define CORO_PRIO_HIGH 1 |
292 | #define PRIO_NORMAL 0 |
295 | #define CORO_PRIO_NORMAL 0 |
293 | #define PRIO_LOW -1 |
296 | #define CORO_PRIO_LOW -1 |
294 | #define PRIO_IDLE -3 |
297 | #define CORO_PRIO_IDLE -3 |
295 | #define PRIO_MIN -4 |
298 | #define CORO_PRIO_MIN -4 |
296 | |
299 | |
297 | /* for Coro.pm */ |
300 | /* for Coro.pm */ |
298 | static SV *coro_current; |
301 | static SV *coro_current; |
299 | static SV *coro_readyhook; |
302 | static SV *coro_readyhook; |
300 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
303 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
301 | static int coro_nready; |
304 | static CV *cv_coro_run; |
302 | static struct coro *coro_first; |
305 | static struct coro *coro_first; |
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306 | #define coro_nready coroapi.nready |
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307 | |
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308 | /** Coro::Select ************************************************************/ |
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309 | |
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310 | static OP *(*coro_old_pp_sselect) (pTHX); |
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311 | static SV *coro_select_select; |
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312 | |
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313 | /* horrible hack, but if it works... */ |
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314 | static OP * |
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315 | coro_pp_sselect (pTHX) |
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316 | { |
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317 | dSP; |
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318 | PUSHMARK (SP - 4); /* fake argument list */ |
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319 | XPUSHs (coro_select_select); |
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320 | PUTBACK; |
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321 | |
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322 | /* entersub is an UNOP, select a LISTOP... keep your fingers crossed */ |
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323 | PL_op->op_flags |= OPf_STACKED; |
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324 | PL_op->op_private = 0; |
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325 | return PL_ppaddr [OP_ENTERSUB](aTHX); |
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326 | } |
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327 | |
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328 | /** time stuff **************************************************************/ |
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329 | |
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330 | #ifdef HAS_GETTIMEOFDAY |
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331 | |
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332 | static void |
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333 | coro_u2time (pTHX_ UV ret[2]) |
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334 | { |
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335 | struct timeval tv; |
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336 | gettimeofday (&tv, 0); |
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337 | |
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338 | ret [0] = tv.tv_sec; |
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339 | ret [1] = tv.tv_usec; |
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340 | } |
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341 | |
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342 | static double |
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343 | coro_nvtime () |
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344 | { |
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345 | struct timeval tv; |
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346 | gettimeofday (&tv, 0); |
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347 | |
|
|
348 | return tv.tv_sec + tv.tv_usec * 1e-6; |
|
|
349 | } |
|
|
350 | |
|
|
351 | static void |
|
|
352 | time_init (pTHX) |
|
|
353 | { |
|
|
354 | nvtime = coro_nvtime; |
|
|
355 | u2time = coro_u2time; |
|
|
356 | } |
|
|
357 | |
|
|
358 | #else |
|
|
359 | |
|
|
360 | static void |
|
|
361 | time_init (pTHX) |
|
|
362 | { |
|
|
363 | SV **svp; |
|
|
364 | |
|
|
365 | require_pv ("Time/HiRes.pm"); |
|
|
366 | |
|
|
367 | svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
368 | |
|
|
369 | if (!svp) croak ("Time::HiRes is required, but missing. Caught"); |
|
|
370 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer. Caught"); |
|
|
371 | |
|
|
372 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
373 | |
|
|
374 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
|
375 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
376 | } |
|
|
377 | |
|
|
378 | #endif |
303 | |
379 | |
304 | /** lowlevel stuff **********************************************************/ |
380 | /** lowlevel stuff **********************************************************/ |
305 | |
381 | |
306 | static SV * |
382 | static SV * |
307 | coro_get_sv (pTHX_ const char *name, int create) |
383 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
331 | get_hv (name, create); |
407 | get_hv (name, create); |
332 | #endif |
408 | #endif |
333 | return get_hv (name, create); |
409 | return get_hv (name, create); |
334 | } |
410 | } |
335 | |
411 | |
|
|
412 | INLINE void |
|
|
413 | coro_times_update () |
|
|
414 | { |
|
|
415 | #ifdef coro_clock_gettime |
|
|
416 | struct timespec ts; |
|
|
417 | |
|
|
418 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
419 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
|
|
420 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
|
|
421 | |
|
|
422 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
423 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
|
|
424 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
|
|
425 | #else |
|
|
426 | dTHX; |
|
|
427 | UV tv[2]; |
|
|
428 | |
|
|
429 | u2time (aTHX_ tv); |
|
|
430 | time_real [0] = tv [0]; |
|
|
431 | time_real [1] = tv [1] * 1000; |
|
|
432 | #endif |
|
|
433 | } |
|
|
434 | |
|
|
435 | INLINE void |
|
|
436 | coro_times_add (struct coro *c) |
|
|
437 | { |
|
|
438 | c->t_real [1] += time_real [1]; |
|
|
439 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
|
440 | c->t_real [0] += time_real [0]; |
|
|
441 | |
|
|
442 | c->t_cpu [1] += time_cpu [1]; |
|
|
443 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
|
444 | c->t_cpu [0] += time_cpu [0]; |
|
|
445 | } |
|
|
446 | |
|
|
447 | INLINE void |
|
|
448 | coro_times_sub (struct coro *c) |
|
|
449 | { |
|
|
450 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
|
451 | c->t_real [1] -= time_real [1]; |
|
|
452 | c->t_real [0] -= time_real [0]; |
|
|
453 | |
|
|
454 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
|
455 | c->t_cpu [1] -= time_cpu [1]; |
|
|
456 | c->t_cpu [0] -= time_cpu [0]; |
|
|
457 | } |
|
|
458 | |
|
|
459 | /*****************************************************************************/ |
|
|
460 | /* magic glue */ |
|
|
461 | |
|
|
462 | #define CORO_MAGIC_type_cv 26 |
|
|
463 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
464 | |
|
|
465 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
466 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
467 | ? SvMAGIC (sv) \ |
|
|
468 | : mg_find (sv, type)) |
|
|
469 | |
|
|
470 | #define CORO_MAGIC(sv, type) \ |
|
|
471 | (expect_true (SvMAGIC (sv)) \ |
|
|
472 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
473 | : 0) |
|
|
474 | |
|
|
475 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
476 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
477 | |
|
|
478 | INLINE MAGIC * |
|
|
479 | SvSTATEhv_p (pTHX_ SV *coro) |
|
|
480 | { |
|
|
481 | MAGIC *mg; |
|
|
482 | |
|
|
483 | if (expect_true ( |
|
|
484 | SvTYPE (coro) == SVt_PVHV |
|
|
485 | && (mg = CORO_MAGIC_state (coro)) |
|
|
486 | && mg->mg_virtual == &coro_state_vtbl |
|
|
487 | )) |
|
|
488 | return mg; |
|
|
489 | |
|
|
490 | return 0; |
|
|
491 | } |
|
|
492 | |
|
|
493 | INLINE struct coro * |
|
|
494 | SvSTATE_ (pTHX_ SV *coro) |
|
|
495 | { |
|
|
496 | MAGIC *mg; |
|
|
497 | |
|
|
498 | if (SvROK (coro)) |
|
|
499 | coro = SvRV (coro); |
|
|
500 | |
|
|
501 | mg = SvSTATEhv_p (coro); |
|
|
502 | if (!mg) |
|
|
503 | croak ("Coro::State object required"); |
|
|
504 | |
|
|
505 | return (struct coro *)mg->mg_ptr; |
|
|
506 | } |
|
|
507 | |
|
|
508 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
509 | |
|
|
510 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
511 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
512 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
513 | |
|
|
514 | /*****************************************************************************/ |
|
|
515 | /* padlist management and caching */ |
|
|
516 | |
336 | static AV * |
517 | static AV * |
337 | coro_clone_padlist (pTHX_ CV *cv) |
518 | coro_derive_padlist (pTHX_ CV *cv) |
338 | { |
519 | { |
339 | AV *padlist = CvPADLIST (cv); |
520 | AV *padlist = CvPADLIST (cv); |
340 | AV *newpadlist, *newpad; |
521 | AV *newpadlist, *newpad; |
341 | |
522 | |
342 | newpadlist = newAV (); |
523 | newpadlist = newAV (); |
… | |
… | |
347 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
528 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
348 | #endif |
529 | #endif |
349 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
530 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
350 | --AvFILLp (padlist); |
531 | --AvFILLp (padlist); |
351 | |
532 | |
352 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
533 | av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); |
353 | av_store (newpadlist, 1, (SV *)newpad); |
534 | av_store (newpadlist, 1, (SV *)newpad); |
354 | |
535 | |
355 | return newpadlist; |
536 | return newpadlist; |
356 | } |
537 | } |
357 | |
538 | |
358 | static void |
539 | static void |
359 | free_padlist (pTHX_ AV *padlist) |
540 | free_padlist (pTHX_ AV *padlist) |
360 | { |
541 | { |
361 | /* may be during global destruction */ |
542 | /* may be during global destruction */ |
362 | if (SvREFCNT (padlist)) |
543 | if (!IN_DESTRUCT) |
363 | { |
544 | { |
364 | I32 i = AvFILLp (padlist); |
545 | I32 i = AvFILLp (padlist); |
365 | while (i >= 0) |
546 | |
|
|
547 | while (i > 0) /* special-case index 0 */ |
366 | { |
548 | { |
367 | SV **svp = av_fetch (padlist, i--, FALSE); |
549 | /* we try to be extra-careful here */ |
368 | if (svp) |
550 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
369 | { |
551 | I32 j = AvFILLp (av); |
370 | SV *sv; |
552 | |
371 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
553 | while (j >= 0) |
|
|
554 | SvREFCNT_dec (AvARRAY (av)[j--]); |
|
|
555 | |
|
|
556 | AvFILLp (av) = -1; |
372 | SvREFCNT_dec (sv); |
557 | SvREFCNT_dec (av); |
373 | |
|
|
374 | SvREFCNT_dec (*svp); |
|
|
375 | } |
|
|
376 | } |
558 | } |
377 | |
559 | |
|
|
560 | SvREFCNT_dec (AvARRAY (padlist)[0]); |
|
|
561 | |
|
|
562 | AvFILLp (padlist) = -1; |
378 | SvREFCNT_dec ((SV*)padlist); |
563 | SvREFCNT_dec ((SV*)padlist); |
379 | } |
564 | } |
380 | } |
565 | } |
381 | |
566 | |
382 | static int |
567 | static int |
383 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
568 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
384 | { |
569 | { |
385 | AV *padlist; |
570 | AV *padlist; |
386 | AV *av = (AV *)mg->mg_obj; |
571 | AV *av = (AV *)mg->mg_obj; |
|
|
572 | |
|
|
573 | /* perl manages to free our internal AV and _then_ call us */ |
|
|
574 | if (IN_DESTRUCT) |
|
|
575 | return 0; |
387 | |
576 | |
388 | /* casting is fun. */ |
577 | /* casting is fun. */ |
389 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
578 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
390 | free_padlist (aTHX_ padlist); |
579 | free_padlist (aTHX_ padlist); |
391 | |
580 | |
392 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
581 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
393 | |
582 | |
394 | return 0; |
583 | return 0; |
395 | } |
584 | } |
396 | |
|
|
397 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
398 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
399 | |
585 | |
400 | static MGVTBL coro_cv_vtbl = { |
586 | static MGVTBL coro_cv_vtbl = { |
401 | 0, 0, 0, 0, |
587 | 0, 0, 0, 0, |
402 | coro_cv_free |
588 | coro_cv_free |
403 | }; |
589 | }; |
404 | |
|
|
405 | #define CORO_MAGIC(sv, type) \ |
|
|
406 | SvMAGIC (sv) \ |
|
|
407 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
408 | ? SvMAGIC (sv) \ |
|
|
409 | : mg_find (sv, type) \ |
|
|
410 | : 0 |
|
|
411 | |
|
|
412 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
413 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
414 | |
|
|
415 | INLINE struct coro * |
|
|
416 | SvSTATE_ (pTHX_ SV *coro) |
|
|
417 | { |
|
|
418 | HV *stash; |
|
|
419 | MAGIC *mg; |
|
|
420 | |
|
|
421 | if (SvROK (coro)) |
|
|
422 | coro = SvRV (coro); |
|
|
423 | |
|
|
424 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
425 | croak ("Coro::State object required"); |
|
|
426 | |
|
|
427 | stash = SvSTASH (coro); |
|
|
428 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
429 | { |
|
|
430 | /* very slow, but rare, check */ |
|
|
431 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
432 | croak ("Coro::State object required"); |
|
|
433 | } |
|
|
434 | |
|
|
435 | mg = CORO_MAGIC_state (coro); |
|
|
436 | return (struct coro *)mg->mg_ptr; |
|
|
437 | } |
|
|
438 | |
|
|
439 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
440 | |
590 | |
441 | /* the next two functions merely cache the padlists */ |
591 | /* the next two functions merely cache the padlists */ |
442 | static void |
592 | static void |
443 | get_padlist (pTHX_ CV *cv) |
593 | get_padlist (pTHX_ CV *cv) |
444 | { |
594 | { |
… | |
… | |
450 | else |
600 | else |
451 | { |
601 | { |
452 | #if CORO_PREFER_PERL_FUNCTIONS |
602 | #if CORO_PREFER_PERL_FUNCTIONS |
453 | /* this is probably cleaner? but also slower! */ |
603 | /* this is probably cleaner? but also slower! */ |
454 | /* in practise, it seems to be less stable */ |
604 | /* in practise, it seems to be less stable */ |
455 | CV *cp = Perl_cv_clone (cv); |
605 | CV *cp = Perl_cv_clone (aTHX_ cv); |
456 | CvPADLIST (cv) = CvPADLIST (cp); |
606 | CvPADLIST (cv) = CvPADLIST (cp); |
457 | CvPADLIST (cp) = 0; |
607 | CvPADLIST (cp) = 0; |
458 | SvREFCNT_dec (cp); |
608 | SvREFCNT_dec (cp); |
459 | #else |
609 | #else |
460 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
610 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
461 | #endif |
611 | #endif |
462 | } |
612 | } |
463 | } |
613 | } |
464 | |
614 | |
465 | static void |
615 | static void |
… | |
… | |
472 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
622 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
473 | |
623 | |
474 | av = (AV *)mg->mg_obj; |
624 | av = (AV *)mg->mg_obj; |
475 | |
625 | |
476 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
626 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
477 | av_extend (av, AvMAX (av) + 1); |
627 | av_extend (av, AvFILLp (av) + 1); |
478 | |
628 | |
479 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
629 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
480 | } |
630 | } |
481 | |
631 | |
482 | /** load & save, init *******************************************************/ |
632 | /** load & save, init *******************************************************/ |
|
|
633 | |
|
|
634 | /* swap sv heads, at least logically */ |
|
|
635 | static void |
|
|
636 | swap_svs (pTHX_ Coro__State c) |
|
|
637 | { |
|
|
638 | int i; |
|
|
639 | |
|
|
640 | for (i = 0; i <= AvFILLp (c->swap_sv); ) |
|
|
641 | { |
|
|
642 | SV *a = AvARRAY (c->swap_sv)[i++]; |
|
|
643 | SV *b = AvARRAY (c->swap_sv)[i++]; |
|
|
644 | |
|
|
645 | const U32 keep = SVs_PADSTALE | SVs_PADTMP | SVs_PADMY; /* keep these flags */ |
|
|
646 | SV tmp; |
|
|
647 | |
|
|
648 | /* swap sv_any */ |
|
|
649 | SvANY (&tmp) = SvANY (a); SvANY (a) = SvANY (b); SvANY (b) = SvANY (&tmp); |
|
|
650 | |
|
|
651 | /* swap sv_flags */ |
|
|
652 | SvFLAGS (&tmp) = SvFLAGS (a); |
|
|
653 | SvFLAGS (a) = (SvFLAGS (a) & keep) | (SvFLAGS (b ) & ~keep); |
|
|
654 | SvFLAGS (b) = (SvFLAGS (b) & keep) | (SvFLAGS (&tmp) & ~keep); |
|
|
655 | |
|
|
656 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
657 | /* perl 5.10 complicates this _quite_ a bit, but it also is |
|
|
658 | * much faster, so no quarrels here. alternatively, we could |
|
|
659 | * sv_upgrade to avoid this. |
|
|
660 | */ |
|
|
661 | { |
|
|
662 | /* swap sv_u */ |
|
|
663 | tmp.sv_u = a->sv_u; a->sv_u = b->sv_u; b->sv_u = tmp.sv_u; |
|
|
664 | |
|
|
665 | /* if SvANY points to the head, we need to adjust the pointers, |
|
|
666 | * as the pointer for a still points to b, and maybe vice versa. |
|
|
667 | */ |
|
|
668 | #define svany_in_head(type) \ |
|
|
669 | (((1 << SVt_NULL) | (1 << SVt_BIND) | (1 << SVt_IV) | (1 << SVt_RV)) & (1 << (type))) |
|
|
670 | |
|
|
671 | if (svany_in_head (SvTYPE (a))) |
|
|
672 | SvANY (a) = (void *)((PTRV)SvANY (a) - (PTRV)b + (PTRV)a); |
|
|
673 | |
|
|
674 | if (svany_in_head (SvTYPE (b))) |
|
|
675 | SvANY (b) = (void *)((PTRV)SvANY (b) - (PTRV)a + (PTRV)b); |
|
|
676 | } |
|
|
677 | #endif |
|
|
678 | } |
|
|
679 | } |
|
|
680 | |
|
|
681 | #define SWAP_SVS(coro) \ |
|
|
682 | if (expect_false ((coro)->swap_sv)) \ |
|
|
683 | swap_svs (aTHX_ (coro)) |
|
|
684 | |
|
|
685 | static void |
|
|
686 | on_enterleave_call (pTHX_ SV *cb); |
483 | |
687 | |
484 | static void |
688 | static void |
485 | load_perl (pTHX_ Coro__State c) |
689 | load_perl (pTHX_ Coro__State c) |
486 | { |
690 | { |
487 | perl_slots *slot = c->slot; |
691 | perl_slots *slot = c->slot; |
488 | c->slot = 0; |
692 | c->slot = 0; |
489 | |
693 | |
490 | PL_mainstack = c->mainstack; |
694 | PL_mainstack = c->mainstack; |
491 | |
695 | |
492 | GvSV (PL_defgv) = slot->defsv; |
696 | GvSV (PL_defgv) = slot->defsv; |
493 | GvAV (PL_defgv) = slot->defav; |
697 | GvAV (PL_defgv) = slot->defav; |
494 | GvSV (PL_errgv) = slot->errsv; |
698 | GvSV (PL_errgv) = slot->errsv; |
495 | GvSV (irsgv) = slot->irsgv; |
699 | GvSV (irsgv) = slot->irsgv; |
|
|
700 | GvHV (PL_hintgv) = slot->hinthv; |
496 | |
701 | |
497 | #define VAR(name,type) PL_ ## name = slot->name; |
702 | #define VAR(name,type) PL_ ## name = slot->name; |
498 | # include "state.h" |
703 | # include "state.h" |
499 | #undef VAR |
704 | #undef VAR |
500 | |
705 | |
… | |
… | |
511 | CvPADLIST (cv) = (AV *)POPs; |
716 | CvPADLIST (cv) = (AV *)POPs; |
512 | } |
717 | } |
513 | |
718 | |
514 | PUTBACK; |
719 | PUTBACK; |
515 | } |
720 | } |
|
|
721 | |
|
|
722 | slf_frame = c->slf_frame; |
|
|
723 | CORO_THROW = c->except; |
|
|
724 | |
|
|
725 | if (expect_false (enable_times)) |
|
|
726 | { |
|
|
727 | if (expect_false (!times_valid)) |
|
|
728 | coro_times_update (); |
|
|
729 | |
|
|
730 | coro_times_sub (c); |
|
|
731 | } |
|
|
732 | |
|
|
733 | if (expect_false (c->on_enter)) |
|
|
734 | { |
|
|
735 | int i; |
|
|
736 | |
|
|
737 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
738 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
739 | } |
|
|
740 | |
|
|
741 | SWAP_SVS (c); |
516 | } |
742 | } |
517 | |
743 | |
518 | static void |
744 | static void |
519 | save_perl (pTHX_ Coro__State c) |
745 | save_perl (pTHX_ Coro__State c) |
520 | { |
746 | { |
|
|
747 | SWAP_SVS (c); |
|
|
748 | |
|
|
749 | if (expect_false (c->on_leave)) |
|
|
750 | { |
|
|
751 | int i; |
|
|
752 | |
|
|
753 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
754 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
755 | } |
|
|
756 | |
|
|
757 | times_valid = 0; |
|
|
758 | |
|
|
759 | if (expect_false (enable_times)) |
|
|
760 | { |
|
|
761 | coro_times_update (); times_valid = 1; |
|
|
762 | coro_times_add (c); |
|
|
763 | } |
|
|
764 | |
|
|
765 | c->except = CORO_THROW; |
|
|
766 | c->slf_frame = slf_frame; |
|
|
767 | |
521 | { |
768 | { |
522 | dSP; |
769 | dSP; |
523 | I32 cxix = cxstack_ix; |
770 | I32 cxix = cxstack_ix; |
524 | PERL_CONTEXT *ccstk = cxstack; |
771 | PERL_CONTEXT *ccstk = cxstack; |
525 | PERL_SI *top_si = PL_curstackinfo; |
772 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
535 | { |
782 | { |
536 | while (expect_true (cxix >= 0)) |
783 | while (expect_true (cxix >= 0)) |
537 | { |
784 | { |
538 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
785 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
539 | |
786 | |
540 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
787 | if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) |
541 | { |
788 | { |
542 | CV *cv = cx->blk_sub.cv; |
789 | CV *cv = cx->blk_sub.cv; |
543 | |
790 | |
544 | if (expect_true (CvDEPTH (cv))) |
791 | if (expect_true (CvDEPTH (cv))) |
545 | { |
792 | { |
… | |
… | |
564 | |
811 | |
565 | PUTBACK; |
812 | PUTBACK; |
566 | } |
813 | } |
567 | |
814 | |
568 | /* allocate some space on the context stack for our purposes */ |
815 | /* allocate some space on the context stack for our purposes */ |
569 | /* we manually unroll here, as usually 2 slots is enough */ |
816 | if (expect_false (cxstack_ix + SLOT_COUNT >= cxstack_max)) |
570 | if (SLOT_COUNT >= 1) CXINC; |
|
|
571 | if (SLOT_COUNT >= 2) CXINC; |
|
|
572 | if (SLOT_COUNT >= 3) CXINC; |
|
|
573 | { |
817 | { |
574 | int i; |
818 | unsigned int i; |
|
|
819 | |
575 | for (i = 3; i < SLOT_COUNT; ++i) |
820 | for (i = 0; i < SLOT_COUNT; ++i) |
576 | CXINC; |
821 | CXINC; |
577 | } |
822 | |
578 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
823 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
824 | } |
579 | |
825 | |
580 | c->mainstack = PL_mainstack; |
826 | c->mainstack = PL_mainstack; |
581 | |
827 | |
582 | { |
828 | { |
583 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
829 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
584 | |
830 | |
585 | slot->defav = GvAV (PL_defgv); |
831 | slot->defav = GvAV (PL_defgv); |
586 | slot->defsv = DEFSV; |
832 | slot->defsv = DEFSV; |
587 | slot->errsv = ERRSV; |
833 | slot->errsv = ERRSV; |
588 | slot->irsgv = GvSV (irsgv); |
834 | slot->irsgv = GvSV (irsgv); |
|
|
835 | slot->hinthv = GvHV (PL_hintgv); |
589 | |
836 | |
590 | #define VAR(name,type) slot->name = PL_ ## name; |
837 | #define VAR(name,type) slot->name = PL_ ## name; |
591 | # include "state.h" |
838 | # include "state.h" |
592 | #undef VAR |
839 | #undef VAR |
593 | } |
840 | } |
594 | } |
841 | } |
595 | |
842 | |
596 | /* |
843 | /* |
597 | * allocate various perl stacks. This is an exact copy |
844 | * allocate various perl stacks. This is almost an exact copy |
598 | * of perl.c:init_stacks, except that it uses less memory |
845 | * of perl.c:init_stacks, except that it uses less memory |
599 | * on the (sometimes correct) assumption that coroutines do |
846 | * on the (sometimes correct) assumption that coroutines do |
600 | * not usually need a lot of stackspace. |
847 | * not usually need a lot of stackspace. |
601 | */ |
848 | */ |
602 | #if CORO_PREFER_PERL_FUNCTIONS |
849 | #if CORO_PREFER_PERL_FUNCTIONS |
603 | # define coro_init_stacks init_stacks |
850 | # define coro_init_stacks(thx) init_stacks () |
604 | #else |
851 | #else |
605 | static void |
852 | static void |
606 | coro_init_stacks (pTHX) |
853 | coro_init_stacks (pTHX) |
607 | { |
854 | { |
608 | PL_curstackinfo = new_stackinfo(32, 8); |
855 | PL_curstackinfo = new_stackinfo(32, 4 + SLOT_COUNT); /* 3 is minimum due to perl rounding down in scope.c:GROW() */ |
609 | PL_curstackinfo->si_type = PERLSI_MAIN; |
856 | PL_curstackinfo->si_type = PERLSI_MAIN; |
610 | PL_curstack = PL_curstackinfo->si_stack; |
857 | PL_curstack = PL_curstackinfo->si_stack; |
611 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
858 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
612 | |
859 | |
613 | PL_stack_base = AvARRAY(PL_curstack); |
860 | PL_stack_base = AvARRAY(PL_curstack); |
… | |
… | |
671 | #if !PERL_VERSION_ATLEAST (5,10,0) |
918 | #if !PERL_VERSION_ATLEAST (5,10,0) |
672 | Safefree (PL_retstack); |
919 | Safefree (PL_retstack); |
673 | #endif |
920 | #endif |
674 | } |
921 | } |
675 | |
922 | |
|
|
923 | #define CORO_RSS \ |
|
|
924 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
925 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
926 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
927 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
928 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
929 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
930 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
931 | |
676 | static size_t |
932 | static size_t |
677 | coro_rss (pTHX_ struct coro *coro) |
933 | coro_rss (pTHX_ struct coro *coro) |
678 | { |
934 | { |
679 | size_t rss = sizeof (*coro); |
935 | size_t rss = sizeof (*coro); |
680 | |
936 | |
681 | if (coro->mainstack) |
937 | if (coro->mainstack) |
682 | { |
938 | { |
683 | perl_slots tmp_slot; |
|
|
684 | perl_slots *slot; |
|
|
685 | |
|
|
686 | if (coro->flags & CF_RUNNING) |
939 | if (coro->flags & CF_RUNNING) |
687 | { |
940 | { |
688 | slot = &tmp_slot; |
941 | #define SYM(sym) PL_ ## sym |
689 | |
942 | CORO_RSS; |
690 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
691 | # include "state.h" |
|
|
692 | #undef VAR |
943 | #undef SYM |
693 | } |
944 | } |
694 | else |
945 | else |
695 | slot = coro->slot; |
|
|
696 | |
|
|
697 | if (slot) |
|
|
698 | { |
946 | { |
699 | rss += sizeof (slot->curstackinfo); |
947 | #define SYM(sym) coro->slot->sym |
700 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
948 | CORO_RSS; |
701 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
949 | #undef SYM |
702 | rss += slot->tmps_max * sizeof (SV *); |
|
|
703 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
704 | rss += slot->scopestack_max * sizeof (I32); |
|
|
705 | rss += slot->savestack_max * sizeof (ANY); |
|
|
706 | |
|
|
707 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
708 | rss += slot->retstack_max * sizeof (OP *); |
|
|
709 | #endif |
|
|
710 | } |
950 | } |
711 | } |
951 | } |
712 | |
952 | |
713 | return rss; |
953 | return rss; |
714 | } |
|
|
715 | |
|
|
716 | /** set stacklevel support **************************************************/ |
|
|
717 | |
|
|
718 | /* we sometimes need to create the effect of pp_set_stacklevel calling us */ |
|
|
719 | #define SSL_HEAD (void)0 |
|
|
720 | /* we sometimes need to create the effect of leaving via pp_set_stacklevel */ |
|
|
721 | #define SSL_TAIL set_stacklevel_tail (aTHX) |
|
|
722 | |
|
|
723 | INLINE void |
|
|
724 | set_stacklevel_tail (pTHX) |
|
|
725 | { |
|
|
726 | dSP; |
|
|
727 | SV **bot = SP; |
|
|
728 | |
|
|
729 | int gimme = GIMME_V; |
|
|
730 | |
|
|
731 | /* make sure we put something on the stack in scalar context */ |
|
|
732 | if (gimme == G_SCALAR) |
|
|
733 | { |
|
|
734 | if (sp == bot) |
|
|
735 | XPUSHs (&PL_sv_undef); |
|
|
736 | |
|
|
737 | SP = bot + 1; |
|
|
738 | } |
|
|
739 | |
|
|
740 | PUTBACK; |
|
|
741 | } |
954 | } |
742 | |
955 | |
743 | /** coroutine stack handling ************************************************/ |
956 | /** coroutine stack handling ************************************************/ |
744 | |
957 | |
745 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
958 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
… | |
… | |
754 | #endif |
967 | #endif |
755 | |
968 | |
756 | /* |
969 | /* |
757 | * This overrides the default magic get method of %SIG elements. |
970 | * This overrides the default magic get method of %SIG elements. |
758 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
971 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
759 | * and instead of tryign to save and restore the hash elements, we just provide |
972 | * and instead of trying to save and restore the hash elements, we just provide |
760 | * readback here. |
973 | * readback here. |
761 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
762 | * not expecting this to actually change the hook. This is a potential problem |
|
|
763 | * when a schedule happens then, but we ignore this. |
|
|
764 | */ |
974 | */ |
765 | static int |
975 | static int |
766 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
976 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
767 | { |
977 | { |
768 | const char *s = MgPV_nolen_const (mg); |
978 | const char *s = MgPV_nolen_const (mg); |
… | |
… | |
821 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
1031 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
822 | |
1032 | |
823 | if (svp) |
1033 | if (svp) |
824 | { |
1034 | { |
825 | SV *old = *svp; |
1035 | SV *old = *svp; |
826 | *svp = newSVsv (sv); |
1036 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
827 | SvREFCNT_dec (old); |
1037 | SvREFCNT_dec (old); |
828 | return 0; |
1038 | return 0; |
829 | } |
1039 | } |
830 | } |
1040 | } |
831 | |
1041 | |
832 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
1042 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
833 | } |
1043 | } |
834 | |
1044 | |
835 | static void |
1045 | static void |
|
|
1046 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
1047 | { |
|
|
1048 | /* kind of mega-hacky, but works */ |
|
|
1049 | ta->next = ta->prev = (struct coro *)ta; |
|
|
1050 | } |
|
|
1051 | |
|
|
1052 | static int |
|
|
1053 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
1054 | { |
|
|
1055 | return 0; |
|
|
1056 | } |
|
|
1057 | |
|
|
1058 | static int |
|
|
1059 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
1060 | { |
|
|
1061 | return 1; |
|
|
1062 | } |
|
|
1063 | |
|
|
1064 | static UNOP init_perl_op; |
|
|
1065 | |
|
|
1066 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
836 | coro_setup (pTHX_ struct coro *coro) |
1067 | init_perl (pTHX_ struct coro *coro) |
837 | { |
1068 | { |
838 | /* |
1069 | /* |
839 | * emulate part of the perl startup here. |
1070 | * emulate part of the perl startup here. |
840 | */ |
1071 | */ |
841 | coro_init_stacks (aTHX); |
1072 | coro_init_stacks (aTHX); |
842 | |
1073 | |
843 | PL_runops = RUNOPS_DEFAULT; |
1074 | PL_runops = RUNOPS_DEFAULT; |
844 | PL_curcop = &PL_compiling; |
1075 | PL_curcop = &PL_compiling; |
845 | PL_in_eval = EVAL_NULL; |
1076 | PL_in_eval = EVAL_NULL; |
846 | PL_comppad = 0; |
1077 | PL_comppad = 0; |
|
|
1078 | PL_comppad_name = 0; |
|
|
1079 | PL_comppad_name_fill = 0; |
|
|
1080 | PL_comppad_name_floor = 0; |
847 | PL_curpm = 0; |
1081 | PL_curpm = 0; |
848 | PL_curpad = 0; |
1082 | PL_curpad = 0; |
849 | PL_localizing = 0; |
1083 | PL_localizing = 0; |
850 | PL_dirty = 0; |
|
|
851 | PL_restartop = 0; |
1084 | PL_restartop = 0; |
852 | #if PERL_VERSION_ATLEAST (5,10,0) |
1085 | #if PERL_VERSION_ATLEAST (5,10,0) |
853 | PL_parser = 0; |
1086 | PL_parser = 0; |
854 | #endif |
1087 | #endif |
|
|
1088 | PL_hints = 0; |
855 | |
1089 | |
856 | /* recreate the die/warn hooks */ |
1090 | /* recreate the die/warn hooks */ |
857 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
1091 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
858 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
1092 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
859 | |
1093 | |
860 | GvSV (PL_defgv) = newSV (0); |
1094 | GvSV (PL_defgv) = newSV (0); |
861 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1095 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
862 | GvSV (PL_errgv) = newSV (0); |
1096 | GvSV (PL_errgv) = newSV (0); |
863 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1097 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1098 | GvHV (PL_hintgv) = 0; |
864 | PL_rs = newSVsv (GvSV (irsgv)); |
1099 | PL_rs = newSVsv (GvSV (irsgv)); |
865 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
1100 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
866 | |
1101 | |
867 | { |
1102 | { |
868 | dSP; |
1103 | dSP; |
869 | UNOP myop; |
1104 | UNOP myop; |
870 | |
1105 | |
871 | Zero (&myop, 1, UNOP); |
1106 | Zero (&myop, 1, UNOP); |
872 | myop.op_next = Nullop; |
1107 | myop.op_next = Nullop; |
|
|
1108 | myop.op_type = OP_ENTERSUB; |
873 | myop.op_flags = OPf_WANT_VOID; |
1109 | myop.op_flags = OPf_WANT_VOID; |
874 | |
1110 | |
875 | PUSHMARK (SP); |
1111 | PUSHMARK (SP); |
876 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
1112 | PUSHs ((SV *)coro->startcv); |
877 | PUTBACK; |
1113 | PUTBACK; |
878 | PL_op = (OP *)&myop; |
1114 | PL_op = (OP *)&myop; |
879 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1115 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
880 | SPAGAIN; |
|
|
881 | } |
1116 | } |
882 | |
1117 | |
883 | /* this newly created coroutine might be run on an existing cctx which most |
1118 | /* this newly created coroutine might be run on an existing cctx which most |
884 | * likely was suspended in set_stacklevel, called from pp_set_stacklevel, |
1119 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
885 | * so we have to emulate entering pp_set_stacklevel here. |
|
|
886 | */ |
1120 | */ |
887 | SSL_HEAD; |
1121 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
888 | } |
1122 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
1123 | slf_frame.destroy = 0; |
889 | |
1124 | |
|
|
1125 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1126 | init_perl_op.op_next = PL_op; |
|
|
1127 | init_perl_op.op_type = OP_ENTERSUB; |
|
|
1128 | init_perl_op.op_ppaddr = pp_slf; |
|
|
1129 | /* no flags etc. required, as an init function won't be called */ |
|
|
1130 | |
|
|
1131 | PL_op = (OP *)&init_perl_op; |
|
|
1132 | |
|
|
1133 | /* copy throw, in case it was set before init_perl */ |
|
|
1134 | CORO_THROW = coro->except; |
|
|
1135 | |
|
|
1136 | SWAP_SVS (coro); |
|
|
1137 | |
|
|
1138 | if (expect_false (enable_times)) |
|
|
1139 | { |
|
|
1140 | coro_times_update (); |
|
|
1141 | coro_times_sub (coro); |
|
|
1142 | } |
|
|
1143 | } |
|
|
1144 | |
890 | static void |
1145 | static void |
891 | coro_destruct (pTHX_ struct coro *coro) |
1146 | coro_unwind_stacks (pTHX) |
892 | { |
1147 | { |
893 | if (!IN_DESTRUCT) |
1148 | if (!IN_DESTRUCT) |
894 | { |
1149 | { |
895 | /* restore all saved variables and stuff */ |
1150 | /* restore all saved variables and stuff */ |
896 | LEAVE_SCOPE (0); |
1151 | LEAVE_SCOPE (0); |
… | |
… | |
904 | POPSTACK_TO (PL_mainstack); |
1159 | POPSTACK_TO (PL_mainstack); |
905 | |
1160 | |
906 | /* unwind main stack */ |
1161 | /* unwind main stack */ |
907 | dounwind (-1); |
1162 | dounwind (-1); |
908 | } |
1163 | } |
|
|
1164 | } |
909 | |
1165 | |
910 | SvREFCNT_dec (GvSV (PL_defgv)); |
1166 | static void |
911 | SvREFCNT_dec (GvAV (PL_defgv)); |
1167 | destroy_perl (pTHX_ struct coro *coro) |
912 | SvREFCNT_dec (GvSV (PL_errgv)); |
1168 | { |
913 | SvREFCNT_dec (PL_defoutgv); |
1169 | SV *svf [9]; |
914 | SvREFCNT_dec (PL_rs); |
|
|
915 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
916 | |
1170 | |
917 | SvREFCNT_dec (PL_diehook); |
|
|
918 | SvREFCNT_dec (PL_warnhook); |
|
|
919 | |
1171 | { |
|
|
1172 | SV *old_current = SvRV (coro_current); |
|
|
1173 | struct coro *current = SvSTATE (old_current); |
|
|
1174 | |
|
|
1175 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1176 | |
|
|
1177 | save_perl (aTHX_ current); |
|
|
1178 | |
|
|
1179 | /* this will cause transfer_check to croak on block*/ |
|
|
1180 | SvRV_set (coro_current, (SV *)coro->hv); |
|
|
1181 | |
|
|
1182 | load_perl (aTHX_ coro); |
|
|
1183 | |
|
|
1184 | coro_unwind_stacks (aTHX); |
|
|
1185 | |
|
|
1186 | /* restore swapped sv's */ |
|
|
1187 | SWAP_SVS (coro); |
|
|
1188 | |
|
|
1189 | coro_destruct_stacks (aTHX); |
|
|
1190 | |
|
|
1191 | // now save some sv's to be free'd later |
|
|
1192 | svf [0] = GvSV (PL_defgv); |
|
|
1193 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1194 | svf [2] = GvSV (PL_errgv); |
|
|
1195 | svf [3] = (SV *)PL_defoutgv; |
|
|
1196 | svf [4] = PL_rs; |
|
|
1197 | svf [5] = GvSV (irsgv); |
|
|
1198 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1199 | svf [7] = PL_diehook; |
|
|
1200 | svf [8] = PL_warnhook; |
|
|
1201 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1202 | |
|
|
1203 | SvRV_set (coro_current, old_current); |
|
|
1204 | |
|
|
1205 | load_perl (aTHX_ current); |
|
|
1206 | } |
|
|
1207 | |
|
|
1208 | { |
|
|
1209 | unsigned int i; |
|
|
1210 | |
|
|
1211 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1212 | SvREFCNT_dec (svf [i]); |
|
|
1213 | |
920 | SvREFCNT_dec (coro->saved_deffh); |
1214 | SvREFCNT_dec (coro->saved_deffh); |
921 | SvREFCNT_dec (coro->throw); |
1215 | SvREFCNT_dec (coro->rouse_cb); |
922 | |
1216 | SvREFCNT_dec (coro->invoke_cb); |
923 | coro_destruct_stacks (aTHX); |
1217 | SvREFCNT_dec (coro->invoke_av); |
|
|
1218 | } |
924 | } |
1219 | } |
925 | |
1220 | |
926 | INLINE void |
1221 | INLINE void |
927 | free_coro_mortal (pTHX) |
1222 | free_coro_mortal (pTHX) |
928 | { |
1223 | { |
929 | if (expect_true (coro_mortal)) |
1224 | if (expect_true (coro_mortal)) |
930 | { |
1225 | { |
931 | SvREFCNT_dec (coro_mortal); |
1226 | SvREFCNT_dec ((SV *)coro_mortal); |
932 | coro_mortal = 0; |
1227 | coro_mortal = 0; |
933 | } |
1228 | } |
934 | } |
1229 | } |
935 | |
1230 | |
936 | static int |
1231 | static int |
937 | runops_trace (pTHX) |
1232 | runops_trace (pTHX) |
938 | { |
1233 | { |
939 | COP *oldcop = 0; |
1234 | COP *oldcop = 0; |
940 | int oldcxix = -2; |
1235 | int oldcxix = -2; |
941 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
942 | coro_cctx *cctx = coro->cctx; |
|
|
943 | |
1236 | |
944 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1237 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
945 | { |
1238 | { |
946 | PERL_ASYNC_CHECK (); |
1239 | PERL_ASYNC_CHECK (); |
947 | |
1240 | |
948 | if (cctx->flags & CC_TRACE_ALL) |
1241 | if (cctx_current->flags & CC_TRACE_ALL) |
949 | { |
1242 | { |
950 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1243 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
951 | { |
1244 | { |
952 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1245 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
953 | SV **bot, **top; |
1246 | SV **bot, **top; |
954 | AV *av = newAV (); /* return values */ |
1247 | AV *av = newAV (); /* return values */ |
955 | SV **cb; |
1248 | SV **cb; |
… | |
… | |
992 | |
1285 | |
993 | if (PL_curcop != &PL_compiling) |
1286 | if (PL_curcop != &PL_compiling) |
994 | { |
1287 | { |
995 | SV **cb; |
1288 | SV **cb; |
996 | |
1289 | |
997 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1290 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
998 | { |
1291 | { |
999 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1292 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1000 | |
1293 | |
1001 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1294 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1002 | { |
1295 | { |
1003 | runops_proc_t old_runops = PL_runops; |
|
|
1004 | dSP; |
1296 | dSP; |
1005 | GV *gv = CvGV (cx->blk_sub.cv); |
1297 | GV *gv = CvGV (cx->blk_sub.cv); |
1006 | SV *fullname = sv_2mortal (newSV (0)); |
1298 | SV *fullname = sv_2mortal (newSV (0)); |
1007 | |
1299 | |
1008 | if (isGV (gv)) |
1300 | if (isGV (gv)) |
… | |
… | |
1013 | SAVETMPS; |
1305 | SAVETMPS; |
1014 | EXTEND (SP, 3); |
1306 | EXTEND (SP, 3); |
1015 | PUSHMARK (SP); |
1307 | PUSHMARK (SP); |
1016 | PUSHs (&PL_sv_yes); |
1308 | PUSHs (&PL_sv_yes); |
1017 | PUSHs (fullname); |
1309 | PUSHs (fullname); |
1018 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1310 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1019 | PUTBACK; |
1311 | PUTBACK; |
1020 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1312 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1021 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1313 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1022 | SPAGAIN; |
1314 | SPAGAIN; |
1023 | FREETMPS; |
1315 | FREETMPS; |
… | |
… | |
1026 | } |
1318 | } |
1027 | |
1319 | |
1028 | oldcxix = cxstack_ix; |
1320 | oldcxix = cxstack_ix; |
1029 | } |
1321 | } |
1030 | |
1322 | |
1031 | if (cctx->flags & CC_TRACE_LINE) |
1323 | if (cctx_current->flags & CC_TRACE_LINE) |
1032 | { |
1324 | { |
1033 | dSP; |
1325 | dSP; |
1034 | |
1326 | |
1035 | PL_runops = RUNOPS_DEFAULT; |
1327 | PL_runops = RUNOPS_DEFAULT; |
1036 | ENTER; |
1328 | ENTER; |
… | |
… | |
1055 | |
1347 | |
1056 | TAINT_NOT; |
1348 | TAINT_NOT; |
1057 | return 0; |
1349 | return 0; |
1058 | } |
1350 | } |
1059 | |
1351 | |
|
|
1352 | static struct CoroSLF cctx_ssl_frame; |
|
|
1353 | |
1060 | static void |
1354 | static void |
1061 | prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx) |
1355 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1062 | { |
1356 | { |
1063 | ta->prev = (struct coro *)cctx; |
|
|
1064 | ta->next = 0; |
1357 | ta->prev = 0; |
1065 | } |
1358 | } |
1066 | |
1359 | |
1067 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1360 | static int |
1068 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1361 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
1069 | /* during execution of a perl program */ |
1362 | { |
1070 | /* also initialises PL_top_env */ |
1363 | *frame = cctx_ssl_frame; |
|
|
1364 | |
|
|
1365 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1366 | } |
|
|
1367 | |
|
|
1368 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
1071 | static void NOINLINE |
1369 | static void NOINLINE |
1072 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1370 | cctx_prepare (pTHX) |
1073 | { |
1371 | { |
1074 | dSP; |
|
|
1075 | UNOP myop; |
|
|
1076 | |
|
|
1077 | PL_top_env = &PL_start_env; |
1372 | PL_top_env = &PL_start_env; |
1078 | |
1373 | |
1079 | if (cctx->flags & CC_TRACE) |
1374 | if (cctx_current->flags & CC_TRACE) |
1080 | PL_runops = runops_trace; |
1375 | PL_runops = runops_trace; |
1081 | |
1376 | |
1082 | Zero (&myop, 1, UNOP); |
1377 | /* we already must be executing an SLF op, there is no other valid way |
1083 | myop.op_next = PL_op; |
1378 | * that can lead to creation of a new cctx */ |
1084 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1379 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1380 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
1085 | |
1381 | |
1086 | PUSHMARK (SP); |
1382 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
1087 | EXTEND (SP, 2); |
1383 | cctx_ssl_frame = slf_frame; |
1088 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1384 | |
1089 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1385 | slf_frame.prepare = slf_prepare_set_stacklevel; |
1090 | PUTBACK; |
1386 | slf_frame.check = slf_check_set_stacklevel; |
1091 | PL_op = (OP *)&myop; |
|
|
1092 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1093 | SPAGAIN; |
|
|
1094 | } |
1387 | } |
1095 | |
1388 | |
1096 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1389 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
1097 | INLINE void |
1390 | INLINE void |
1098 | transfer_tail (pTHX) |
1391 | transfer_tail (pTHX) |
1099 | { |
1392 | { |
1100 | struct coro *next = (struct coro *)transfer_next; |
|
|
1101 | assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
|
|
1102 | assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next)); |
|
|
1103 | |
|
|
1104 | free_coro_mortal (aTHX); |
1393 | free_coro_mortal (aTHX); |
1105 | UNLOCK; |
|
|
1106 | |
|
|
1107 | if (expect_false (next->throw)) |
|
|
1108 | { |
|
|
1109 | SV *exception = sv_2mortal (next->throw); |
|
|
1110 | |
|
|
1111 | next->throw = 0; |
|
|
1112 | sv_setsv (ERRSV, exception); |
|
|
1113 | croak (0); |
|
|
1114 | } |
|
|
1115 | } |
1394 | } |
1116 | |
1395 | |
1117 | /* |
1396 | /* |
1118 | * this is a _very_ stripped down perl interpreter ;) |
1397 | * this is a _very_ stripped down perl interpreter ;) |
1119 | */ |
1398 | */ |
… | |
… | |
1126 | # endif |
1405 | # endif |
1127 | #endif |
1406 | #endif |
1128 | { |
1407 | { |
1129 | dTHX; |
1408 | dTHX; |
1130 | |
1409 | |
1131 | /* we are the alternative tail to pp_set_stacklevel */ |
1410 | /* normally we would need to skip the entersub here */ |
1132 | /* so do the same things here */ |
1411 | /* not doing so will re-execute it, which is exactly what we want */ |
1133 | SSL_TAIL; |
|
|
1134 | |
|
|
1135 | /* we now skip the op that did lead to transfer() */ |
|
|
1136 | PL_op = PL_op->op_next; |
1412 | /* PL_nop = PL_nop->op_next */ |
1137 | |
1413 | |
1138 | /* inject a fake subroutine call to cctx_init */ |
1414 | /* inject a fake subroutine call to cctx_init */ |
1139 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1415 | cctx_prepare (aTHX); |
1140 | |
1416 | |
1141 | /* cctx_run is the alternative tail of transfer() */ |
1417 | /* cctx_run is the alternative tail of transfer() */ |
1142 | transfer_tail (aTHX); |
1418 | transfer_tail (aTHX); |
1143 | |
1419 | |
1144 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1420 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1145 | PL_restartop = PL_op; |
1421 | PL_restartop = PL_op; |
1146 | perl_run (PL_curinterp); |
1422 | perl_run (PL_curinterp); |
|
|
1423 | /* |
|
|
1424 | * Unfortunately, there is no way to get at the return values of the |
|
|
1425 | * coro body here, as perl_run destroys these. Likewise, we cannot catch |
|
|
1426 | * runtime errors here, as this is just a random interpreter, not a thread. |
|
|
1427 | */ |
1147 | |
1428 | |
1148 | /* |
1429 | /* |
1149 | * If perl-run returns we assume exit() was being called or the coro |
1430 | * If perl-run returns we assume exit() was being called or the coro |
1150 | * fell off the end, which seems to be the only valid (non-bug) |
1431 | * fell off the end, which seems to be the only valid (non-bug) |
1151 | * reason for perl_run to return. We try to exit by jumping to the |
1432 | * reason for perl_run to return. We try to exit by jumping to the |
1152 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1433 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1153 | * coroutine as Coro has no such concept |
1434 | * coroutine as Coro has no such concept. |
|
|
1435 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1436 | * that backend are too broken to do it in a standards-compliant way. |
1154 | */ |
1437 | */ |
1155 | PL_top_env = main_top_env; |
1438 | PL_top_env = main_top_env; |
1156 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1439 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1157 | } |
1440 | } |
1158 | } |
1441 | } |
… | |
… | |
1235 | cctx_destroy (coro_cctx *cctx) |
1518 | cctx_destroy (coro_cctx *cctx) |
1236 | { |
1519 | { |
1237 | if (!cctx) |
1520 | if (!cctx) |
1238 | return; |
1521 | return; |
1239 | |
1522 | |
|
|
1523 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current)); |
|
|
1524 | |
1240 | --cctx_count; |
1525 | --cctx_count; |
1241 | coro_destroy (&cctx->cctx); |
1526 | coro_destroy (&cctx->cctx); |
1242 | |
1527 | |
1243 | /* coro_transfer creates new, empty cctx's */ |
1528 | /* coro_transfer creates new, empty cctx's */ |
1244 | if (cctx->sptr) |
1529 | if (cctx->sptr) |
… | |
… | |
1302 | /** coroutine switching *****************************************************/ |
1587 | /** coroutine switching *****************************************************/ |
1303 | |
1588 | |
1304 | static void |
1589 | static void |
1305 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1590 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1306 | { |
1591 | { |
|
|
1592 | /* TODO: throwing up here is considered harmful */ |
|
|
1593 | |
1307 | if (expect_true (prev != next)) |
1594 | if (expect_true (prev != next)) |
1308 | { |
1595 | { |
1309 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1596 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1310 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1597 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1311 | |
1598 | |
1312 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1313 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1314 | |
|
|
1315 | if (expect_false (next->flags & CF_DESTROYED)) |
1599 | if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) |
1316 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1600 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1317 | |
1601 | |
1318 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1602 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1319 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1603 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1320 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1604 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1321 | #endif |
1605 | #endif |
1322 | } |
1606 | } |
1323 | } |
1607 | } |
1324 | |
1608 | |
1325 | /* always use the TRANSFER macro */ |
1609 | /* always use the TRANSFER macro */ |
1326 | static void NOINLINE |
1610 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1327 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1611 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1328 | { |
1612 | { |
1329 | dSTACKLEVEL; |
1613 | dSTACKLEVEL; |
1330 | |
1614 | |
1331 | /* sometimes transfer is only called to set idle_sp */ |
1615 | /* sometimes transfer is only called to set idle_sp */ |
1332 | if (expect_false (!next)) |
1616 | if (expect_false (!prev)) |
1333 | { |
1617 | { |
1334 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1618 | cctx_current->idle_sp = STACKLEVEL; |
1335 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1619 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1336 | } |
1620 | } |
1337 | else if (expect_true (prev != next)) |
1621 | else if (expect_true (prev != next)) |
1338 | { |
1622 | { |
1339 | coro_cctx *prev__cctx; |
1623 | coro_cctx *cctx_prev; |
1340 | |
1624 | |
1341 | if (expect_false (prev->flags & CF_NEW)) |
1625 | if (expect_false (prev->flags & CF_NEW)) |
1342 | { |
1626 | { |
1343 | /* create a new empty/source context */ |
1627 | /* create a new empty/source context */ |
1344 | prev->cctx = cctx_new_empty (); |
|
|
1345 | prev->flags &= ~CF_NEW; |
1628 | prev->flags &= ~CF_NEW; |
1346 | prev->flags |= CF_RUNNING; |
1629 | prev->flags |= CF_RUNNING; |
1347 | } |
1630 | } |
1348 | |
1631 | |
1349 | prev->flags &= ~CF_RUNNING; |
1632 | prev->flags &= ~CF_RUNNING; |
1350 | next->flags |= CF_RUNNING; |
1633 | next->flags |= CF_RUNNING; |
1351 | |
|
|
1352 | LOCK; |
|
|
1353 | |
1634 | |
1354 | /* first get rid of the old state */ |
1635 | /* first get rid of the old state */ |
1355 | save_perl (aTHX_ prev); |
1636 | save_perl (aTHX_ prev); |
1356 | |
1637 | |
1357 | if (expect_false (next->flags & CF_NEW)) |
1638 | if (expect_false (next->flags & CF_NEW)) |
1358 | { |
1639 | { |
1359 | /* need to start coroutine */ |
1640 | /* need to start coroutine */ |
1360 | next->flags &= ~CF_NEW; |
1641 | next->flags &= ~CF_NEW; |
1361 | /* setup coroutine call */ |
1642 | /* setup coroutine call */ |
1362 | coro_setup (aTHX_ next); |
1643 | init_perl (aTHX_ next); |
1363 | } |
1644 | } |
1364 | else |
1645 | else |
1365 | load_perl (aTHX_ next); |
1646 | load_perl (aTHX_ next); |
1366 | |
1647 | |
1367 | prev__cctx = prev->cctx; |
|
|
1368 | |
|
|
1369 | /* possibly untie and reuse the cctx */ |
1648 | /* possibly untie and reuse the cctx */ |
1370 | if (expect_true ( |
1649 | if (expect_true ( |
1371 | prev__cctx->idle_sp == STACKLEVEL |
1650 | cctx_current->idle_sp == STACKLEVEL |
1372 | && !(prev__cctx->flags & CC_TRACE) |
1651 | && !(cctx_current->flags & CC_TRACE) |
1373 | && !force_cctx |
1652 | && !force_cctx |
1374 | )) |
1653 | )) |
1375 | { |
1654 | { |
1376 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1655 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1377 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1656 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1378 | |
1657 | |
1379 | prev->cctx = 0; |
|
|
1380 | |
|
|
1381 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1658 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1382 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1659 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1383 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1660 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
1384 | if (!next->cctx) |
1661 | if (expect_true (!next->cctx)) |
1385 | next->cctx = cctx_get (aTHX); |
1662 | next->cctx = cctx_get (aTHX); |
1386 | |
1663 | |
1387 | cctx_put (prev__cctx); |
1664 | cctx_put (cctx_current); |
1388 | } |
1665 | } |
|
|
1666 | else |
|
|
1667 | prev->cctx = cctx_current; |
1389 | |
1668 | |
1390 | ++next->usecount; |
1669 | ++next->usecount; |
1391 | |
1670 | |
1392 | if (expect_true (!next->cctx)) |
1671 | cctx_prev = cctx_current; |
1393 | next->cctx = cctx_get (aTHX); |
1672 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1394 | |
1673 | |
1395 | assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
1674 | next->cctx = 0; |
1396 | transfer_next = next; |
|
|
1397 | |
1675 | |
1398 | if (expect_false (prev__cctx != next->cctx)) |
1676 | if (expect_false (cctx_prev != cctx_current)) |
1399 | { |
1677 | { |
1400 | prev__cctx->top_env = PL_top_env; |
1678 | cctx_prev->top_env = PL_top_env; |
1401 | PL_top_env = next->cctx->top_env; |
1679 | PL_top_env = cctx_current->top_env; |
1402 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1680 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1403 | } |
1681 | } |
1404 | |
1682 | |
1405 | transfer_tail (aTHX); |
1683 | transfer_tail (aTHX); |
1406 | } |
1684 | } |
1407 | } |
1685 | } |
… | |
… | |
1409 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1687 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1410 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1688 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1411 | |
1689 | |
1412 | /** high level stuff ********************************************************/ |
1690 | /** high level stuff ********************************************************/ |
1413 | |
1691 | |
|
|
1692 | /* this function is actually Coro, not Coro::State, but we call it from here */ |
|
|
1693 | /* because it is convenient - but it hasn't been declared yet for that reason */ |
1414 | static int |
1694 | static void |
|
|
1695 | coro_call_on_destroy (pTHX_ struct coro *coro); |
|
|
1696 | |
|
|
1697 | static void |
1415 | coro_state_destroy (pTHX_ struct coro *coro) |
1698 | coro_state_destroy (pTHX_ struct coro *coro) |
1416 | { |
1699 | { |
1417 | if (coro->flags & CF_DESTROYED) |
1700 | if (coro->flags & CF_DESTROYED) |
1418 | return 0; |
1701 | return; |
|
|
1702 | |
|
|
1703 | slf_destroy (aTHX_ coro); |
1419 | |
1704 | |
1420 | coro->flags |= CF_DESTROYED; |
1705 | coro->flags |= CF_DESTROYED; |
1421 | |
1706 | |
1422 | if (coro->flags & CF_READY) |
1707 | if (coro->flags & CF_READY) |
1423 | { |
1708 | { |
1424 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1709 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1425 | /* alternative: look through all ready queues and remove the coro */ |
1710 | /* alternative: look through all ready queues and remove the coro */ |
1426 | LOCK; |
|
|
1427 | --coro_nready; |
1711 | --coro_nready; |
1428 | UNLOCK; |
|
|
1429 | } |
1712 | } |
1430 | else |
1713 | else |
1431 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1714 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1432 | |
|
|
1433 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
1434 | { |
|
|
1435 | struct coro temp; |
|
|
1436 | |
|
|
1437 | if (coro->flags & CF_RUNNING) |
|
|
1438 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1439 | |
|
|
1440 | save_perl (aTHX_ &temp); |
|
|
1441 | load_perl (aTHX_ coro); |
|
|
1442 | |
|
|
1443 | coro_destruct (aTHX_ coro); |
|
|
1444 | |
|
|
1445 | load_perl (aTHX_ &temp); |
|
|
1446 | |
|
|
1447 | coro->slot = 0; |
|
|
1448 | } |
|
|
1449 | |
|
|
1450 | cctx_destroy (coro->cctx); |
|
|
1451 | SvREFCNT_dec (coro->args); |
|
|
1452 | |
1715 | |
1453 | if (coro->next) coro->next->prev = coro->prev; |
1716 | if (coro->next) coro->next->prev = coro->prev; |
1454 | if (coro->prev) coro->prev->next = coro->next; |
1717 | if (coro->prev) coro->prev->next = coro->next; |
1455 | if (coro == coro_first) coro_first = coro->next; |
1718 | if (coro == coro_first) coro_first = coro->next; |
1456 | |
1719 | |
1457 | return 1; |
1720 | if (coro->mainstack |
|
|
1721 | && coro->mainstack != main_mainstack |
|
|
1722 | && coro->slot |
|
|
1723 | && !PL_dirty) |
|
|
1724 | destroy_perl (aTHX_ coro); |
|
|
1725 | |
|
|
1726 | cctx_destroy (coro->cctx); |
|
|
1727 | SvREFCNT_dec (coro->startcv); |
|
|
1728 | SvREFCNT_dec (coro->args); |
|
|
1729 | SvREFCNT_dec (coro->swap_sv); |
|
|
1730 | SvREFCNT_dec (CORO_THROW); |
|
|
1731 | |
|
|
1732 | coro_call_on_destroy (coro); |
|
|
1733 | |
|
|
1734 | /* more destruction mayhem in coro_state_free */ |
1458 | } |
1735 | } |
1459 | |
1736 | |
1460 | static int |
1737 | static int |
1461 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1738 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1462 | { |
1739 | { |
1463 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1740 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1464 | mg->mg_ptr = 0; |
1741 | mg->mg_ptr = 0; |
1465 | |
1742 | |
1466 | coro->hv = 0; |
|
|
1467 | |
|
|
1468 | if (--coro->refcnt < 0) |
|
|
1469 | { |
|
|
1470 | coro_state_destroy (aTHX_ coro); |
1743 | coro_state_destroy (coro); |
|
|
1744 | SvREFCNT_dec (coro->on_destroy); |
|
|
1745 | SvREFCNT_dec (coro->status); |
|
|
1746 | |
1471 | Safefree (coro); |
1747 | Safefree (coro); |
1472 | } |
|
|
1473 | |
1748 | |
1474 | return 0; |
1749 | return 0; |
1475 | } |
1750 | } |
1476 | |
1751 | |
1477 | static int |
1752 | static int |
1478 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1753 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1479 | { |
1754 | { |
1480 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1755 | /* called when perl clones the current process the slow way (windows process emulation) */ |
1481 | |
1756 | /* WE SIMply nuke the pointers in the copy, causing perl to croak */ |
1482 | ++coro->refcnt; |
1757 | mg->mg_ptr = 0; |
|
|
1758 | mg->mg_virtual = 0; |
1483 | |
1759 | |
1484 | return 0; |
1760 | return 0; |
1485 | } |
1761 | } |
1486 | |
1762 | |
1487 | static MGVTBL coro_state_vtbl = { |
1763 | static MGVTBL coro_state_vtbl = { |
… | |
… | |
1494 | # define MGf_DUP 0 |
1770 | # define MGf_DUP 0 |
1495 | #endif |
1771 | #endif |
1496 | }; |
1772 | }; |
1497 | |
1773 | |
1498 | static void |
1774 | static void |
1499 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1775 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1500 | { |
1776 | { |
1501 | ta->prev = SvSTATE (prev_sv); |
1777 | ta->prev = SvSTATE (prev_sv); |
1502 | ta->next = SvSTATE (next_sv); |
1778 | ta->next = SvSTATE (next_sv); |
1503 | TRANSFER_CHECK (*ta); |
1779 | TRANSFER_CHECK (*ta); |
1504 | } |
1780 | } |
1505 | |
1781 | |
1506 | static void |
1782 | static void |
1507 | api_transfer (SV *prev_sv, SV *next_sv) |
1783 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1508 | { |
1784 | { |
1509 | dTHX; |
|
|
1510 | struct transfer_args ta; |
1785 | struct coro_transfer_args ta; |
1511 | |
1786 | |
1512 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1787 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1513 | TRANSFER (ta, 1); |
1788 | TRANSFER (ta, 1); |
1514 | } |
1789 | } |
1515 | |
1790 | |
1516 | /** Coro ********************************************************************/ |
1791 | /** Coro ********************************************************************/ |
1517 | |
1792 | |
1518 | static void |
1793 | INLINE void |
1519 | coro_enq (pTHX_ SV *coro_sv) |
1794 | coro_enq (pTHX_ struct coro *coro) |
1520 | { |
1795 | { |
1521 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1796 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1522 | } |
|
|
1523 | |
1797 | |
1524 | static SV * |
1798 | SvREFCNT_inc_NN (coro->hv); |
|
|
1799 | |
|
|
1800 | coro->next_ready = 0; |
|
|
1801 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1802 | ready [1] = coro; |
|
|
1803 | } |
|
|
1804 | |
|
|
1805 | INLINE struct coro * |
1525 | coro_deq (pTHX) |
1806 | coro_deq (pTHX) |
1526 | { |
1807 | { |
1527 | int prio; |
1808 | int prio; |
1528 | |
1809 | |
1529 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1810 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
1530 | if (AvFILLp (coro_ready [prio]) >= 0) |
1811 | { |
1531 | return av_shift (coro_ready [prio]); |
1812 | struct coro **ready = coro_ready [prio]; |
|
|
1813 | |
|
|
1814 | if (ready [0]) |
|
|
1815 | { |
|
|
1816 | struct coro *coro = ready [0]; |
|
|
1817 | ready [0] = coro->next_ready; |
|
|
1818 | return coro; |
|
|
1819 | } |
|
|
1820 | } |
1532 | |
1821 | |
1533 | return 0; |
1822 | return 0; |
1534 | } |
1823 | } |
1535 | |
1824 | |
|
|
1825 | static void |
|
|
1826 | invoke_sv_ready_hook_helper (void) |
|
|
1827 | { |
|
|
1828 | dTHX; |
|
|
1829 | dSP; |
|
|
1830 | |
|
|
1831 | ENTER; |
|
|
1832 | SAVETMPS; |
|
|
1833 | |
|
|
1834 | PUSHMARK (SP); |
|
|
1835 | PUTBACK; |
|
|
1836 | call_sv (coro_readyhook, G_VOID | G_DISCARD); |
|
|
1837 | |
|
|
1838 | FREETMPS; |
|
|
1839 | LEAVE; |
|
|
1840 | } |
|
|
1841 | |
1536 | static int |
1842 | static int |
1537 | api_ready (SV *coro_sv) |
1843 | api_ready (pTHX_ SV *coro_sv) |
1538 | { |
1844 | { |
1539 | dTHX; |
|
|
1540 | struct coro *coro; |
|
|
1541 | SV *sv_hook; |
|
|
1542 | void (*xs_hook)(void); |
|
|
1543 | |
|
|
1544 | if (SvROK (coro_sv)) |
|
|
1545 | coro_sv = SvRV (coro_sv); |
|
|
1546 | |
|
|
1547 | coro = SvSTATE (coro_sv); |
1845 | struct coro *coro = SvSTATE (coro_sv); |
1548 | |
1846 | |
1549 | if (coro->flags & CF_READY) |
1847 | if (coro->flags & CF_READY) |
1550 | return 0; |
1848 | return 0; |
1551 | |
1849 | |
1552 | coro->flags |= CF_READY; |
1850 | coro->flags |= CF_READY; |
1553 | |
1851 | |
1554 | LOCK; |
1852 | coro_enq (aTHX_ coro); |
1555 | |
1853 | |
1556 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1854 | if (!coro_nready++) |
1557 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1855 | if (coroapi.readyhook) |
1558 | |
1856 | coroapi.readyhook (); |
1559 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
|
|
1560 | ++coro_nready; |
|
|
1561 | |
|
|
1562 | UNLOCK; |
|
|
1563 | |
|
|
1564 | if (sv_hook) |
|
|
1565 | { |
|
|
1566 | dSP; |
|
|
1567 | |
|
|
1568 | ENTER; |
|
|
1569 | SAVETMPS; |
|
|
1570 | |
|
|
1571 | PUSHMARK (SP); |
|
|
1572 | PUTBACK; |
|
|
1573 | call_sv (sv_hook, G_DISCARD); |
|
|
1574 | SPAGAIN; |
|
|
1575 | |
|
|
1576 | FREETMPS; |
|
|
1577 | LEAVE; |
|
|
1578 | } |
|
|
1579 | |
|
|
1580 | if (xs_hook) |
|
|
1581 | xs_hook (); |
|
|
1582 | |
1857 | |
1583 | return 1; |
1858 | return 1; |
1584 | } |
1859 | } |
1585 | |
1860 | |
1586 | static int |
1861 | static int |
1587 | api_is_ready (SV *coro_sv) |
1862 | api_is_ready (pTHX_ SV *coro_sv) |
1588 | { |
1863 | { |
1589 | dTHX; |
|
|
1590 | |
|
|
1591 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1864 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1592 | } |
1865 | } |
1593 | |
1866 | |
|
|
1867 | /* expects to own a reference to next->hv */ |
1594 | INLINE void |
1868 | INLINE void |
1595 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1869 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1596 | { |
1870 | { |
1597 | SV *prev_sv, *next_sv; |
|
|
1598 | |
|
|
1599 | for (;;) |
|
|
1600 | { |
|
|
1601 | LOCK; |
|
|
1602 | next_sv = coro_deq (aTHX); |
|
|
1603 | |
|
|
1604 | /* nothing to schedule: call the idle handler */ |
|
|
1605 | if (expect_false (!next_sv)) |
|
|
1606 | { |
|
|
1607 | dSP; |
|
|
1608 | UNLOCK; |
|
|
1609 | |
|
|
1610 | ENTER; |
|
|
1611 | SAVETMPS; |
|
|
1612 | |
|
|
1613 | PUSHMARK (SP); |
|
|
1614 | PUTBACK; |
|
|
1615 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1616 | SPAGAIN; |
|
|
1617 | |
|
|
1618 | FREETMPS; |
|
|
1619 | LEAVE; |
|
|
1620 | continue; |
|
|
1621 | } |
|
|
1622 | |
|
|
1623 | ta->next = SvSTATE (next_sv); |
|
|
1624 | |
|
|
1625 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1626 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1627 | { |
|
|
1628 | UNLOCK; |
|
|
1629 | SvREFCNT_dec (next_sv); |
|
|
1630 | /* coro_nready has already been taken care of by destroy */ |
|
|
1631 | continue; |
|
|
1632 | } |
|
|
1633 | |
|
|
1634 | --coro_nready; |
|
|
1635 | UNLOCK; |
|
|
1636 | break; |
|
|
1637 | } |
|
|
1638 | |
|
|
1639 | /* free this only after the transfer */ |
|
|
1640 | prev_sv = SvRV (coro_current); |
1871 | SV *prev_sv = SvRV (coro_current); |
|
|
1872 | |
1641 | ta->prev = SvSTATE (prev_sv); |
1873 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1874 | ta->next = next; |
|
|
1875 | |
1642 | TRANSFER_CHECK (*ta); |
1876 | TRANSFER_CHECK (*ta); |
1643 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1877 | |
1644 | ta->next->flags &= ~CF_READY; |
|
|
1645 | SvRV_set (coro_current, next_sv); |
1878 | SvRV_set (coro_current, (SV *)next->hv); |
1646 | |
1879 | |
1647 | LOCK; |
|
|
1648 | free_coro_mortal (aTHX); |
1880 | free_coro_mortal (aTHX); |
1649 | coro_mortal = prev_sv; |
1881 | coro_mortal = prev_sv; |
1650 | UNLOCK; |
1882 | } |
|
|
1883 | |
|
|
1884 | static void |
|
|
1885 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1886 | { |
|
|
1887 | for (;;) |
|
|
1888 | { |
|
|
1889 | struct coro *next = coro_deq (aTHX); |
|
|
1890 | |
|
|
1891 | if (expect_true (next)) |
|
|
1892 | { |
|
|
1893 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1894 | if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) |
|
|
1895 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1896 | else |
|
|
1897 | { |
|
|
1898 | next->flags &= ~CF_READY; |
|
|
1899 | --coro_nready; |
|
|
1900 | |
|
|
1901 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1902 | break; |
|
|
1903 | } |
|
|
1904 | } |
|
|
1905 | else |
|
|
1906 | { |
|
|
1907 | /* nothing to schedule: call the idle handler */ |
|
|
1908 | if (SvROK (sv_idle) |
|
|
1909 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1910 | { |
|
|
1911 | if (SvRV (sv_idle) == SvRV (coro_current)) |
|
|
1912 | croak ("FATAL: $Coro::IDLE blocked itself - did you try to block inside an event loop callback? Caught"); |
|
|
1913 | |
|
|
1914 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1915 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1916 | --coro_nready; |
|
|
1917 | } |
|
|
1918 | else |
|
|
1919 | { |
|
|
1920 | /* TODO: deprecated, remove, cannot work reliably *//*D*/ |
|
|
1921 | dSP; |
|
|
1922 | |
|
|
1923 | ENTER; |
|
|
1924 | SAVETMPS; |
|
|
1925 | |
|
|
1926 | PUSHMARK (SP); |
|
|
1927 | PUTBACK; |
|
|
1928 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1929 | |
|
|
1930 | FREETMPS; |
|
|
1931 | LEAVE; |
|
|
1932 | } |
|
|
1933 | } |
|
|
1934 | } |
1651 | } |
1935 | } |
1652 | |
1936 | |
1653 | INLINE void |
1937 | INLINE void |
1654 | prepare_cede (pTHX_ struct transfer_args *ta) |
1938 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1655 | { |
1939 | { |
1656 | api_ready (coro_current); |
1940 | api_ready (aTHX_ coro_current); |
1657 | prepare_schedule (aTHX_ ta); |
1941 | prepare_schedule (aTHX_ ta); |
1658 | } |
1942 | } |
1659 | |
1943 | |
1660 | static void |
1944 | INLINE void |
1661 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1945 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
1662 | { |
1946 | { |
1663 | SV *prev = SvRV (coro_current); |
1947 | SV *prev = SvRV (coro_current); |
1664 | |
1948 | |
1665 | if (coro_nready) |
1949 | if (coro_nready) |
1666 | { |
1950 | { |
1667 | prepare_schedule (aTHX_ ta); |
1951 | prepare_schedule (aTHX_ ta); |
1668 | api_ready (prev); |
1952 | api_ready (aTHX_ prev); |
1669 | } |
1953 | } |
1670 | else |
1954 | else |
1671 | ta->prev = ta->next = SvSTATE (prev); |
1955 | prepare_nop (aTHX_ ta); |
1672 | } |
1956 | } |
1673 | |
1957 | |
1674 | static void |
1958 | static void |
1675 | api_schedule (void) |
1959 | api_schedule (pTHX) |
1676 | { |
1960 | { |
1677 | dTHX; |
|
|
1678 | struct transfer_args ta; |
1961 | struct coro_transfer_args ta; |
1679 | |
1962 | |
1680 | prepare_schedule (aTHX_ &ta); |
1963 | prepare_schedule (aTHX_ &ta); |
1681 | TRANSFER (ta, 1); |
1964 | TRANSFER (ta, 1); |
1682 | } |
1965 | } |
1683 | |
1966 | |
|
|
1967 | static void |
|
|
1968 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1969 | { |
|
|
1970 | struct coro_transfer_args ta; |
|
|
1971 | struct coro *next = SvSTATE (coro_sv); |
|
|
1972 | |
|
|
1973 | SvREFCNT_inc_NN (coro_sv); |
|
|
1974 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
1975 | } |
|
|
1976 | |
1684 | static int |
1977 | static int |
1685 | api_cede (void) |
1978 | api_cede (pTHX) |
1686 | { |
1979 | { |
1687 | dTHX; |
|
|
1688 | struct transfer_args ta; |
1980 | struct coro_transfer_args ta; |
1689 | |
1981 | |
1690 | prepare_cede (aTHX_ &ta); |
1982 | prepare_cede (aTHX_ &ta); |
1691 | |
1983 | |
1692 | if (expect_true (ta.prev != ta.next)) |
1984 | if (expect_true (ta.prev != ta.next)) |
1693 | { |
1985 | { |
… | |
… | |
1697 | else |
1989 | else |
1698 | return 0; |
1990 | return 0; |
1699 | } |
1991 | } |
1700 | |
1992 | |
1701 | static int |
1993 | static int |
1702 | api_cede_notself (void) |
1994 | api_cede_notself (pTHX) |
1703 | { |
1995 | { |
1704 | if (coro_nready) |
1996 | if (coro_nready) |
1705 | { |
1997 | { |
1706 | dTHX; |
|
|
1707 | struct transfer_args ta; |
1998 | struct coro_transfer_args ta; |
1708 | |
1999 | |
1709 | prepare_cede_notself (aTHX_ &ta); |
2000 | prepare_cede_notself (aTHX_ &ta); |
1710 | TRANSFER (ta, 1); |
2001 | TRANSFER (ta, 1); |
1711 | return 1; |
2002 | return 1; |
1712 | } |
2003 | } |
1713 | else |
2004 | else |
1714 | return 0; |
2005 | return 0; |
1715 | } |
2006 | } |
1716 | |
2007 | |
1717 | static void |
2008 | static void |
1718 | api_trace (SV *coro_sv, int flags) |
2009 | api_trace (pTHX_ SV *coro_sv, int flags) |
1719 | { |
2010 | { |
1720 | dTHX; |
|
|
1721 | struct coro *coro = SvSTATE (coro_sv); |
2011 | struct coro *coro = SvSTATE (coro_sv); |
|
|
2012 | |
|
|
2013 | if (coro->flags & CF_RUNNING) |
|
|
2014 | croak ("cannot enable tracing on a running coroutine, caught"); |
1722 | |
2015 | |
1723 | if (flags & CC_TRACE) |
2016 | if (flags & CC_TRACE) |
1724 | { |
2017 | { |
1725 | if (!coro->cctx) |
2018 | if (!coro->cctx) |
1726 | coro->cctx = cctx_new_run (); |
2019 | coro->cctx = cctx_new_run (); |
1727 | else if (!(coro->cctx->flags & CC_TRACE)) |
2020 | else if (!(coro->cctx->flags & CC_TRACE)) |
1728 | croak ("cannot enable tracing on coroutine with custom stack"); |
2021 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1729 | |
2022 | |
1730 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
2023 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1731 | } |
2024 | } |
1732 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
2025 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1733 | { |
2026 | { |
… | |
… | |
1738 | else |
2031 | else |
1739 | coro->slot->runops = RUNOPS_DEFAULT; |
2032 | coro->slot->runops = RUNOPS_DEFAULT; |
1740 | } |
2033 | } |
1741 | } |
2034 | } |
1742 | |
2035 | |
1743 | #if 0 |
2036 | static void |
|
|
2037 | coro_push_av (pTHX_ AV *av, I32 gimme_v) |
|
|
2038 | { |
|
|
2039 | if (AvFILLp (av) >= 0 && gimme_v != G_VOID) |
|
|
2040 | { |
|
|
2041 | dSP; |
|
|
2042 | |
|
|
2043 | if (gimme_v == G_SCALAR) |
|
|
2044 | XPUSHs (AvARRAY (av)[AvFILLp (av)]); |
|
|
2045 | else |
|
|
2046 | { |
|
|
2047 | int i; |
|
|
2048 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2049 | |
|
|
2050 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2051 | PUSHs (AvARRAY (av)[i]); |
|
|
2052 | } |
|
|
2053 | |
|
|
2054 | PUTBACK; |
|
|
2055 | } |
|
|
2056 | } |
|
|
2057 | |
|
|
2058 | static void |
|
|
2059 | coro_push_on_destroy (aTHX_ struct coro *coro, SV *cb) |
|
|
2060 | { |
|
|
2061 | if (!coro->on_destroy) |
|
|
2062 | coro->on_destroy = newAV (); |
|
|
2063 | |
|
|
2064 | av_push (coro->on_destroy, cb); |
|
|
2065 | } |
|
|
2066 | |
|
|
2067 | static void |
|
|
2068 | slf_destroy_join (pTHX_ struct CoroSLF *frame) |
|
|
2069 | { |
|
|
2070 | SvREFCNT_dec ((SV *)((struct coro *)frame->data)->hv); |
|
|
2071 | } |
|
|
2072 | |
1744 | static int |
2073 | static int |
1745 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
2074 | slf_check_join (pTHX_ struct CoroSLF *frame) |
1746 | { |
2075 | { |
1747 | AV *padlist; |
2076 | struct coro *coro = (struct coro *)frame->data; |
1748 | AV *av = (AV *)mg->mg_obj; |
|
|
1749 | |
2077 | |
1750 | abort (); |
2078 | if (!coro->status) |
|
|
2079 | return 1; |
|
|
2080 | |
|
|
2081 | frame->destroy = 0; |
|
|
2082 | |
|
|
2083 | coro_push_av (coro->status, GIMME_V); |
|
|
2084 | |
|
|
2085 | SvREFCNT_dec ((SV *)coro->hv); |
1751 | |
2086 | |
1752 | return 0; |
2087 | return 0; |
1753 | } |
2088 | } |
1754 | |
2089 | |
1755 | static MGVTBL coro_gensub_vtbl = { |
2090 | static void |
1756 | 0, 0, 0, 0, |
2091 | slf_init_join (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
1757 | coro_gensub_free |
2092 | { |
1758 | }; |
2093 | struct coro *coro = SvSTATE (items > 0 ? arg [0] : &PL_sv_undef); |
1759 | #endif |
2094 | |
|
|
2095 | if (items > 1) |
|
|
2096 | croak ("join called with too many arguments"); |
|
|
2097 | |
|
|
2098 | if (coro->status) |
|
|
2099 | frame->prepare = prepare_nop; |
|
|
2100 | else |
|
|
2101 | { |
|
|
2102 | coro_push_on_destroy (aTHX_ coro, SvREFCNT_inc_NN (SvRV (coro_current))); |
|
|
2103 | frame->prepare = prepare_schedule; |
|
|
2104 | } |
|
|
2105 | |
|
|
2106 | frame->check = slf_check_join; |
|
|
2107 | frame->destroy = slf_destroy_join; |
|
|
2108 | frame->data = (void *)coro; |
|
|
2109 | SvREFCNT_inc (coro->hv); |
|
|
2110 | } |
|
|
2111 | |
|
|
2112 | static void |
|
|
2113 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
2114 | { |
|
|
2115 | AV *od = coro->on_destroy; |
|
|
2116 | |
|
|
2117 | if (!od) |
|
|
2118 | return; |
|
|
2119 | |
|
|
2120 | while (AvFILLp (od) >= 0) |
|
|
2121 | { |
|
|
2122 | SV *cb = sv_2mortal (av_pop (od)); |
|
|
2123 | |
|
|
2124 | /* coro hv's (and only hv's at the moment) are supported as well */ |
|
|
2125 | if (SvSTATEhv_p (aTHX_ cb)) |
|
|
2126 | api_ready (aTHX_ cb); |
|
|
2127 | else |
|
|
2128 | { |
|
|
2129 | dSP; /* don't disturb outer sp */ |
|
|
2130 | PUSHMARK (SP); |
|
|
2131 | |
|
|
2132 | if (coro->status) |
|
|
2133 | { |
|
|
2134 | PUTBACK; |
|
|
2135 | coro_push_av (aTHX_ coro->status, G_ARRAY); |
|
|
2136 | SPAGAIN; |
|
|
2137 | } |
|
|
2138 | |
|
|
2139 | PUTBACK; |
|
|
2140 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
|
|
2141 | } |
|
|
2142 | } |
|
|
2143 | } |
|
|
2144 | |
|
|
2145 | static void |
|
|
2146 | coro_set_status (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2147 | { |
|
|
2148 | AV *av; |
|
|
2149 | |
|
|
2150 | if (coro->status) |
|
|
2151 | { |
|
|
2152 | av = coro->status; |
|
|
2153 | av_clear (av); |
|
|
2154 | } |
|
|
2155 | else |
|
|
2156 | av = coro->status = newAV (); |
|
|
2157 | |
|
|
2158 | /* items are actually not so common, so optimise for this case */ |
|
|
2159 | if (items) |
|
|
2160 | { |
|
|
2161 | int i; |
|
|
2162 | |
|
|
2163 | av_extend (av, items - 1); |
|
|
2164 | |
|
|
2165 | for (i = 0; i < items; ++i) |
|
|
2166 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2167 | } |
|
|
2168 | } |
|
|
2169 | |
|
|
2170 | static void |
|
|
2171 | slf_init_terminate_cancel_common (pTHX_ struct CoroSLF *frame, HV *coro_hv) |
|
|
2172 | { |
|
|
2173 | av_push (av_destroy, (SV *)newRV_inc ((SV *)coro_hv)); /* RVinc for perl */ |
|
|
2174 | api_ready (aTHX_ sv_manager); |
|
|
2175 | |
|
|
2176 | frame->prepare = prepare_schedule; |
|
|
2177 | frame->check = slf_check_repeat; |
|
|
2178 | |
|
|
2179 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2180 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2181 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2182 | } |
|
|
2183 | |
|
|
2184 | static void |
|
|
2185 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2186 | { |
|
|
2187 | HV *coro_hv = (HV *)SvRV (coro_current); |
|
|
2188 | |
|
|
2189 | coro_set_status (aTHX_ SvSTATE ((SV *)coro_hv), arg, items); |
|
|
2190 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2191 | } |
|
|
2192 | |
|
|
2193 | static void |
|
|
2194 | slf_init_cancel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2195 | { |
|
|
2196 | HV *coro_hv; |
|
|
2197 | struct coro *coro; |
|
|
2198 | |
|
|
2199 | if (items <= 0) |
|
|
2200 | croak ("Coro::cancel called without coro object,"); |
|
|
2201 | |
|
|
2202 | coro = SvSTATE (arg [0]); |
|
|
2203 | coro_hv = coro->hv; |
|
|
2204 | |
|
|
2205 | coro_set_status (aTHX_ coro, arg + 1, items - 1); |
|
|
2206 | |
|
|
2207 | if (expect_false (coro->flags & CF_NOCANCEL)) |
|
|
2208 | { |
|
|
2209 | /* coro currently busy cancelling something, so just notify it */ |
|
|
2210 | coro->slf_frame.data = (void *)coro; |
|
|
2211 | |
|
|
2212 | frame->prepare = prepare_nop; |
|
|
2213 | frame->check = slf_check_nop; |
|
|
2214 | } |
|
|
2215 | else if (coro_hv == (HV *)SvRV (coro_current)) |
|
|
2216 | { |
|
|
2217 | /* cancelling the current coro is allowed, and equals terminate */ |
|
|
2218 | slf_init_terminate_cancel_common (aTHX_ frame, coro_hv); |
|
|
2219 | } |
|
|
2220 | else |
|
|
2221 | { |
|
|
2222 | struct coro *self = SvSTATE_current; |
|
|
2223 | |
|
|
2224 | /* otherwise we cancel directly, purely for speed reasons |
|
|
2225 | * unfortunately, this requires some magic trickery, as |
|
|
2226 | * somebody else could cancel us, so we have to fight the cancellation. |
|
|
2227 | * this is ugly, and hopefully fully worth the extra speed. |
|
|
2228 | * besides, I can't get the slow-but-safe version working... |
|
|
2229 | */ |
|
|
2230 | slf_frame.data = 0; |
|
|
2231 | self->flags |= CF_NOCANCEL; |
|
|
2232 | coro_state_destroy (aTHX_ coro); |
|
|
2233 | self->flags &= ~CF_NOCANCEL; |
|
|
2234 | |
|
|
2235 | if (slf_frame.data) |
|
|
2236 | { |
|
|
2237 | /* while we were busy we have been cancelled, so terminate */ |
|
|
2238 | slf_init_terminate_cancel_common (aTHX_ frame, self->hv); |
|
|
2239 | } |
|
|
2240 | else |
|
|
2241 | { |
|
|
2242 | frame->prepare = prepare_nop; |
|
|
2243 | frame->check = slf_check_nop; |
|
|
2244 | } |
|
|
2245 | } |
|
|
2246 | } |
|
|
2247 | |
|
|
2248 | static int |
|
|
2249 | slf_check_safe_cancel (pTHX_ struct CoroSLF *frame) |
|
|
2250 | { |
|
|
2251 | frame->prepare = 0; |
|
|
2252 | coro_unwind_stacks (aTHX); |
|
|
2253 | |
|
|
2254 | slf_init_terminate_cancel_common (aTHX_ frame, (HV *)SvRV (coro_current)); |
|
|
2255 | |
|
|
2256 | return 1; |
|
|
2257 | } |
|
|
2258 | |
|
|
2259 | static int |
|
|
2260 | safe_cancel (pTHX_ struct coro *coro, SV **arg, int items) |
|
|
2261 | { |
|
|
2262 | if (coro->cctx) |
|
|
2263 | croak ("coro inside C callback, unable to cancel at this time, caught"); |
|
|
2264 | |
|
|
2265 | if (coro->flags & CF_NEW) |
|
|
2266 | { |
|
|
2267 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2268 | coro_state_destroy (aTHX_ coro); |
|
|
2269 | } |
|
|
2270 | else |
|
|
2271 | { |
|
|
2272 | if (!coro->slf_frame.prepare) |
|
|
2273 | croak ("coro outside an SLF function, unable to cancel at this time, caught"); |
|
|
2274 | |
|
|
2275 | slf_destroy (aTHX_ coro); |
|
|
2276 | |
|
|
2277 | coro_set_status (aTHX_ coro, arg, items); |
|
|
2278 | coro->slf_frame.prepare = prepare_nop; |
|
|
2279 | coro->slf_frame.check = slf_check_safe_cancel; |
|
|
2280 | |
|
|
2281 | api_ready (aTHX_ (SV *)coro->hv); |
|
|
2282 | } |
|
|
2283 | |
|
|
2284 | return 1; |
|
|
2285 | } |
|
|
2286 | |
|
|
2287 | /*****************************************************************************/ |
|
|
2288 | /* async pool handler */ |
|
|
2289 | |
|
|
2290 | static int |
|
|
2291 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2292 | { |
|
|
2293 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2294 | struct coro *coro = (struct coro *)frame->data; |
|
|
2295 | |
|
|
2296 | if (!coro->invoke_cb) |
|
|
2297 | return 1; /* loop till we have invoke */ |
|
|
2298 | else |
|
|
2299 | { |
|
|
2300 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2301 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2302 | |
|
|
2303 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2304 | |
|
|
2305 | { |
|
|
2306 | dSP; |
|
|
2307 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2308 | PUTBACK; |
|
|
2309 | } |
|
|
2310 | |
|
|
2311 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2312 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2313 | coro->invoke_av = 0; |
|
|
2314 | |
|
|
2315 | return 0; |
|
|
2316 | } |
|
|
2317 | } |
|
|
2318 | |
|
|
2319 | static void |
|
|
2320 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2321 | { |
|
|
2322 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2323 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2324 | |
|
|
2325 | if (expect_true (coro->saved_deffh)) |
|
|
2326 | { |
|
|
2327 | /* subsequent iteration */ |
|
|
2328 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2329 | coro->saved_deffh = 0; |
|
|
2330 | |
|
|
2331 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2332 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2333 | { |
|
|
2334 | slf_init_terminate_cancel_common (aTHX_ frame, hv); |
|
|
2335 | return; |
|
|
2336 | } |
|
|
2337 | else |
|
|
2338 | { |
|
|
2339 | av_clear (GvAV (PL_defgv)); |
|
|
2340 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2341 | |
|
|
2342 | coro->prio = 0; |
|
|
2343 | |
|
|
2344 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2345 | api_trace (aTHX_ coro_current, 0); |
|
|
2346 | |
|
|
2347 | frame->prepare = prepare_schedule; |
|
|
2348 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2349 | } |
|
|
2350 | } |
|
|
2351 | else |
|
|
2352 | { |
|
|
2353 | /* first iteration, simply fall through */ |
|
|
2354 | frame->prepare = prepare_nop; |
|
|
2355 | } |
|
|
2356 | |
|
|
2357 | frame->check = slf_check_pool_handler; |
|
|
2358 | frame->data = (void *)coro; |
|
|
2359 | } |
|
|
2360 | |
|
|
2361 | /*****************************************************************************/ |
|
|
2362 | /* rouse callback */ |
|
|
2363 | |
|
|
2364 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2365 | |
|
|
2366 | static void |
|
|
2367 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2368 | { |
|
|
2369 | dXSARGS; |
|
|
2370 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2371 | |
|
|
2372 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2373 | { |
|
|
2374 | /* first call, set args */ |
|
|
2375 | SV *coro = SvRV (data); |
|
|
2376 | AV *av = newAV (); |
|
|
2377 | |
|
|
2378 | SvRV_set (data, (SV *)av); |
|
|
2379 | |
|
|
2380 | /* better take a full copy of the arguments */ |
|
|
2381 | while (items--) |
|
|
2382 | av_store (av, items, newSVsv (ST (items))); |
|
|
2383 | |
|
|
2384 | api_ready (aTHX_ coro); |
|
|
2385 | SvREFCNT_dec (coro); |
|
|
2386 | } |
|
|
2387 | |
|
|
2388 | XSRETURN_EMPTY; |
|
|
2389 | } |
|
|
2390 | |
|
|
2391 | static int |
|
|
2392 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2393 | { |
|
|
2394 | SV *data = (SV *)frame->data; |
|
|
2395 | |
|
|
2396 | if (CORO_THROW) |
|
|
2397 | return 0; |
|
|
2398 | |
|
|
2399 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2400 | return 1; |
|
|
2401 | |
|
|
2402 | /* now push all results on the stack */ |
|
|
2403 | { |
|
|
2404 | dSP; |
|
|
2405 | AV *av = (AV *)SvRV (data); |
|
|
2406 | int i; |
|
|
2407 | |
|
|
2408 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2409 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2410 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2411 | |
|
|
2412 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2413 | AvFILLp (av) = -1; |
|
|
2414 | av_undef (av); |
|
|
2415 | |
|
|
2416 | PUTBACK; |
|
|
2417 | } |
|
|
2418 | |
|
|
2419 | return 0; |
|
|
2420 | } |
|
|
2421 | |
|
|
2422 | static void |
|
|
2423 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2424 | { |
|
|
2425 | SV *cb; |
|
|
2426 | |
|
|
2427 | if (items) |
|
|
2428 | cb = arg [0]; |
|
|
2429 | else |
|
|
2430 | { |
|
|
2431 | struct coro *coro = SvSTATE_current; |
|
|
2432 | |
|
|
2433 | if (!coro->rouse_cb) |
|
|
2434 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2435 | |
|
|
2436 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2437 | coro->rouse_cb = 0; |
|
|
2438 | } |
|
|
2439 | |
|
|
2440 | if (!SvROK (cb) |
|
|
2441 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2442 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2443 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2444 | |
|
|
2445 | { |
|
|
2446 | CV *cv = (CV *)SvRV (cb); /* for S_GENSUB_ARG */ |
|
|
2447 | SV *data = (SV *)S_GENSUB_ARG; |
|
|
2448 | |
|
|
2449 | frame->data = (void *)data; |
|
|
2450 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2451 | frame->check = slf_check_rouse_wait; |
|
|
2452 | } |
|
|
2453 | } |
|
|
2454 | |
|
|
2455 | static SV * |
|
|
2456 | coro_new_rouse_cb (pTHX) |
|
|
2457 | { |
|
|
2458 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2459 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2460 | SV *data = newRV_inc ((SV *)hv); |
|
|
2461 | SV *cb = s_gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2462 | |
|
|
2463 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2464 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2465 | |
|
|
2466 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2467 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2468 | |
|
|
2469 | return cb; |
|
|
2470 | } |
|
|
2471 | |
|
|
2472 | /*****************************************************************************/ |
|
|
2473 | /* schedule-like-function opcode (SLF) */ |
|
|
2474 | |
|
|
2475 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2476 | static const CV *slf_cv; |
|
|
2477 | static SV **slf_argv; |
|
|
2478 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2479 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2480 | |
|
|
2481 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2482 | /* recreate the stack frame as perl will on following calls */ |
|
|
2483 | /* since entersub cleared the stack */ |
|
|
2484 | static OP * |
|
|
2485 | pp_restore (pTHX) |
|
|
2486 | { |
|
|
2487 | int i; |
|
|
2488 | SV **SP = PL_stack_base + slf_ax; |
|
|
2489 | |
|
|
2490 | PUSHMARK (SP); |
|
|
2491 | |
|
|
2492 | EXTEND (SP, slf_argc + 1); |
|
|
2493 | |
|
|
2494 | for (i = 0; i < slf_argc; ++i) |
|
|
2495 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2496 | |
|
|
2497 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2498 | |
|
|
2499 | RETURNOP (slf_restore.op_first); |
|
|
2500 | } |
|
|
2501 | |
|
|
2502 | static void |
|
|
2503 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2504 | { |
|
|
2505 | SV **arg = (SV **)slf_frame.data; |
|
|
2506 | |
|
|
2507 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2508 | } |
|
|
2509 | |
|
|
2510 | static void |
|
|
2511 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2512 | { |
|
|
2513 | if (items != 2) |
|
|
2514 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2515 | |
|
|
2516 | frame->prepare = slf_prepare_transfer; |
|
|
2517 | frame->check = slf_check_nop; |
|
|
2518 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2519 | } |
|
|
2520 | |
|
|
2521 | static void |
|
|
2522 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2523 | { |
|
|
2524 | frame->prepare = prepare_schedule; |
|
|
2525 | frame->check = slf_check_nop; |
|
|
2526 | } |
|
|
2527 | |
|
|
2528 | static void |
|
|
2529 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2530 | { |
|
|
2531 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2532 | |
|
|
2533 | SvREFCNT_inc_NN (next->hv); |
|
|
2534 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2535 | } |
|
|
2536 | |
|
|
2537 | static void |
|
|
2538 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2539 | { |
|
|
2540 | if (!items) |
|
|
2541 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2542 | |
|
|
2543 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2544 | frame->prepare = slf_prepare_schedule_to; |
|
|
2545 | frame->check = slf_check_nop; |
|
|
2546 | } |
|
|
2547 | |
|
|
2548 | static void |
|
|
2549 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2550 | { |
|
|
2551 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2552 | |
|
|
2553 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2554 | } |
|
|
2555 | |
|
|
2556 | static void |
|
|
2557 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2558 | { |
|
|
2559 | frame->prepare = prepare_cede; |
|
|
2560 | frame->check = slf_check_nop; |
|
|
2561 | } |
|
|
2562 | |
|
|
2563 | static void |
|
|
2564 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2565 | { |
|
|
2566 | frame->prepare = prepare_cede_notself; |
|
|
2567 | frame->check = slf_check_nop; |
|
|
2568 | } |
|
|
2569 | |
|
|
2570 | /* "undo"/cancel a running slf call - used when cancelling a coro, mainly */ |
|
|
2571 | static void |
|
|
2572 | slf_destroy (pTHX_ struct coro *coro) |
|
|
2573 | { |
|
|
2574 | /* this callback is reserved for slf functions needing to do cleanup */ |
|
|
2575 | if (coro->slf_frame.destroy && coro->slf_frame.prepare && !PL_dirty) |
|
|
2576 | coro->slf_frame.destroy (aTHX_ &coro->slf_frame); |
|
|
2577 | |
|
|
2578 | /* |
|
|
2579 | * The on_destroy above most likely is from an SLF call. |
|
|
2580 | * Since by definition the SLF call will not finish when we destroy |
|
|
2581 | * the coro, we will have to force-finish it here, otherwise |
|
|
2582 | * cleanup functions cannot call SLF functions. |
|
|
2583 | */ |
|
|
2584 | coro->slf_frame.prepare = 0; |
|
|
2585 | } |
|
|
2586 | |
|
|
2587 | /* |
|
|
2588 | * these not obviously related functions are all rolled into one |
|
|
2589 | * function to increase chances that they all will call transfer with the same |
|
|
2590 | * stack offset |
|
|
2591 | * SLF stands for "schedule-like-function". |
|
|
2592 | */ |
|
|
2593 | static OP * |
|
|
2594 | pp_slf (pTHX) |
|
|
2595 | { |
|
|
2596 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2597 | |
|
|
2598 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2599 | /* the latter happens when a new coro has been started */ |
|
|
2600 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2601 | if (expect_true (!slf_frame.prepare)) |
|
|
2602 | { |
|
|
2603 | /* first iteration */ |
|
|
2604 | dSP; |
|
|
2605 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2606 | int items = SP - arg; /* args without function object */ |
|
|
2607 | SV *gv = *sp; |
|
|
2608 | |
|
|
2609 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2610 | /* for us, divert to the real entersub */ |
|
|
2611 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2612 | || !GvCV (gv) |
|
|
2613 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2614 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2615 | |
|
|
2616 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2617 | { |
|
|
2618 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2619 | AV *av = GvAV (PL_defgv); |
|
|
2620 | arg = AvARRAY (av); |
|
|
2621 | items = AvFILLp (av) + 1; |
|
|
2622 | } |
|
|
2623 | |
|
|
2624 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2625 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2626 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2627 | |
|
|
2628 | /* pop args */ |
|
|
2629 | SP = PL_stack_base + POPMARK; |
|
|
2630 | |
|
|
2631 | PUTBACK; |
|
|
2632 | } |
|
|
2633 | |
|
|
2634 | /* now that we have a slf_frame, interpret it! */ |
|
|
2635 | /* we use a callback system not to make the code needlessly */ |
|
|
2636 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2637 | |
|
|
2638 | do |
|
|
2639 | { |
|
|
2640 | struct coro_transfer_args ta; |
|
|
2641 | |
|
|
2642 | slf_frame.prepare (aTHX_ &ta); |
|
|
2643 | TRANSFER (ta, 0); |
|
|
2644 | |
|
|
2645 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2646 | } |
|
|
2647 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2648 | |
|
|
2649 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2650 | |
|
|
2651 | /* exception handling */ |
|
|
2652 | if (expect_false (CORO_THROW)) |
|
|
2653 | { |
|
|
2654 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2655 | |
|
|
2656 | CORO_THROW = 0; |
|
|
2657 | sv_setsv (ERRSV, exception); |
|
|
2658 | croak (0); |
|
|
2659 | } |
|
|
2660 | |
|
|
2661 | /* return value handling - mostly like entersub */ |
|
|
2662 | /* make sure we put something on the stack in scalar context */ |
|
|
2663 | if (GIMME_V == G_SCALAR |
|
|
2664 | && expect_false (PL_stack_sp != PL_stack_base + checkmark + 1)) |
|
|
2665 | { |
|
|
2666 | dSP; |
|
|
2667 | SV **bot = PL_stack_base + checkmark; |
|
|
2668 | |
|
|
2669 | if (sp == bot) /* too few, push undef */ |
|
|
2670 | bot [1] = &PL_sv_undef; |
|
|
2671 | else /* too many, take last one */ |
|
|
2672 | bot [1] = *sp; |
|
|
2673 | |
|
|
2674 | SP = bot + 1; |
|
|
2675 | |
|
|
2676 | PUTBACK; |
|
|
2677 | } |
|
|
2678 | |
|
|
2679 | return NORMAL; |
|
|
2680 | } |
|
|
2681 | |
|
|
2682 | static void |
|
|
2683 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2684 | { |
|
|
2685 | int i; |
|
|
2686 | SV **arg = PL_stack_base + ax; |
|
|
2687 | int items = PL_stack_sp - arg + 1; |
|
|
2688 | |
|
|
2689 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2690 | |
|
|
2691 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2692 | && PL_op->op_ppaddr != pp_slf) |
|
|
2693 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2694 | |
|
|
2695 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2696 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2697 | slf_cv = cv; |
|
|
2698 | |
|
|
2699 | /* we patch the op, and then re-run the whole call */ |
|
|
2700 | /* we have to put the same argument on the stack for this to work */ |
|
|
2701 | /* and this will be done by pp_restore */ |
|
|
2702 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2703 | slf_restore.op_type = OP_CUSTOM; |
|
|
2704 | slf_restore.op_ppaddr = pp_restore; |
|
|
2705 | slf_restore.op_first = PL_op; |
|
|
2706 | |
|
|
2707 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2708 | |
|
|
2709 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2710 | { |
|
|
2711 | if (items > slf_arga) |
|
|
2712 | { |
|
|
2713 | slf_arga = items; |
|
|
2714 | Safefree (slf_argv); |
|
|
2715 | New (0, slf_argv, slf_arga, SV *); |
|
|
2716 | } |
|
|
2717 | |
|
|
2718 | slf_argc = items; |
|
|
2719 | |
|
|
2720 | for (i = 0; i < items; ++i) |
|
|
2721 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2722 | } |
|
|
2723 | else |
|
|
2724 | slf_argc = 0; |
|
|
2725 | |
|
|
2726 | PL_op->op_ppaddr = pp_slf; |
|
|
2727 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2728 | |
|
|
2729 | PL_op = (OP *)&slf_restore; |
|
|
2730 | } |
|
|
2731 | |
|
|
2732 | /*****************************************************************************/ |
|
|
2733 | /* dynamic wind */ |
|
|
2734 | |
|
|
2735 | static void |
|
|
2736 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2737 | { |
|
|
2738 | dSP; |
|
|
2739 | |
|
|
2740 | PUSHSTACK; |
|
|
2741 | |
|
|
2742 | PUSHMARK (SP); |
|
|
2743 | PUTBACK; |
|
|
2744 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2745 | SPAGAIN; |
|
|
2746 | |
|
|
2747 | POPSTACK; |
|
|
2748 | } |
|
|
2749 | |
|
|
2750 | static SV * |
|
|
2751 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2752 | { |
|
|
2753 | AV *av = *avp; |
|
|
2754 | SV *res = av_pop (av); |
|
|
2755 | |
|
|
2756 | if (AvFILLp (av) < 0) |
|
|
2757 | { |
|
|
2758 | *avp = 0; |
|
|
2759 | SvREFCNT_dec (av); |
|
|
2760 | } |
|
|
2761 | |
|
|
2762 | return res; |
|
|
2763 | } |
|
|
2764 | |
|
|
2765 | static void |
|
|
2766 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2767 | { |
|
|
2768 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2769 | SvREFCNT_dec (cb); |
|
|
2770 | } |
|
|
2771 | |
|
|
2772 | static void |
|
|
2773 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2774 | { |
|
|
2775 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2776 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2777 | } |
1760 | |
2778 | |
1761 | /*****************************************************************************/ |
2779 | /*****************************************************************************/ |
1762 | /* PerlIO::cede */ |
2780 | /* PerlIO::cede */ |
1763 | |
2781 | |
1764 | typedef struct |
2782 | typedef struct |
… | |
… | |
1792 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
2810 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1793 | double now = nvtime (); |
2811 | double now = nvtime (); |
1794 | |
2812 | |
1795 | if (now >= self->next) |
2813 | if (now >= self->next) |
1796 | { |
2814 | { |
1797 | api_cede (); |
2815 | api_cede (aTHX); |
1798 | self->next = now + self->every; |
2816 | self->next = now + self->every; |
1799 | } |
2817 | } |
1800 | |
2818 | |
1801 | return PerlIOBuf_flush (aTHX_ f); |
2819 | return PerlIOBuf_flush (aTHX_ f); |
1802 | } |
2820 | } |
… | |
… | |
1832 | PerlIOBuf_get_cnt, |
2850 | PerlIOBuf_get_cnt, |
1833 | PerlIOBuf_set_ptrcnt, |
2851 | PerlIOBuf_set_ptrcnt, |
1834 | }; |
2852 | }; |
1835 | |
2853 | |
1836 | /*****************************************************************************/ |
2854 | /*****************************************************************************/ |
|
|
2855 | /* Coro::Semaphore & Coro::Signal */ |
1837 | |
2856 | |
1838 | static const CV *ssl_cv; /* for quick consistency check */ |
|
|
1839 | |
|
|
1840 | static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1841 | static SV *ssl_arg0; |
|
|
1842 | static SV *ssl_arg1; |
|
|
1843 | |
|
|
1844 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1845 | /* recreate the stack frame as perl will on following calls */ |
|
|
1846 | /* since entersub cleared the stack */ |
|
|
1847 | static OP * |
2857 | static SV * |
1848 | pp_restore (pTHX) |
2858 | coro_waitarray_new (pTHX_ int count) |
1849 | { |
2859 | { |
|
|
2860 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2861 | AV *av = newAV (); |
|
|
2862 | SV **ary; |
|
|
2863 | |
|
|
2864 | /* unfortunately, building manually saves memory */ |
|
|
2865 | Newx (ary, 2, SV *); |
|
|
2866 | AvALLOC (av) = ary; |
|
|
2867 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2868 | AvARRAY (av) = ary; |
|
|
2869 | #else |
|
|
2870 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2871 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2872 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2873 | #endif |
|
|
2874 | AvMAX (av) = 1; |
|
|
2875 | AvFILLp (av) = 0; |
|
|
2876 | ary [0] = newSViv (count); |
|
|
2877 | |
|
|
2878 | return newRV_noinc ((SV *)av); |
|
|
2879 | } |
|
|
2880 | |
|
|
2881 | /* semaphore */ |
|
|
2882 | |
|
|
2883 | static void |
|
|
2884 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2885 | { |
|
|
2886 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2887 | IV count = SvIVX (count_sv); |
|
|
2888 | |
|
|
2889 | count += adjust; |
|
|
2890 | SvIVX (count_sv) = count; |
|
|
2891 | |
|
|
2892 | /* now wake up as many waiters as are expected to lock */ |
|
|
2893 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2894 | { |
|
|
2895 | SV *cb; |
|
|
2896 | |
|
|
2897 | /* swap first two elements so we can shift a waiter */ |
|
|
2898 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2899 | AvARRAY (av)[1] = count_sv; |
|
|
2900 | cb = av_shift (av); |
|
|
2901 | |
|
|
2902 | if (SvOBJECT (cb)) |
|
|
2903 | { |
|
|
2904 | api_ready (aTHX_ cb); |
|
|
2905 | --count; |
|
|
2906 | } |
|
|
2907 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2908 | { |
|
|
2909 | dSP; |
|
|
2910 | PUSHMARK (SP); |
|
|
2911 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2912 | PUTBACK; |
|
|
2913 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2914 | } |
|
|
2915 | |
|
|
2916 | SvREFCNT_dec (cb); |
|
|
2917 | } |
|
|
2918 | } |
|
|
2919 | |
|
|
2920 | static void |
|
|
2921 | coro_semaphore_destroy (pTHX_ struct CoroSLF *frame) |
|
|
2922 | { |
|
|
2923 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2924 | coro_semaphore_adjust (aTHX_ (AV *)frame->data, 0); |
|
|
2925 | } |
|
|
2926 | |
|
|
2927 | static int |
|
|
2928 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2929 | { |
|
|
2930 | AV *av = (AV *)frame->data; |
|
|
2931 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2932 | SV *coro_hv = SvRV (coro_current); |
|
|
2933 | |
|
|
2934 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2935 | if (CORO_THROW) |
|
|
2936 | return 0; |
|
|
2937 | else if (SvIVX (count_sv) > 0) |
|
|
2938 | { |
|
|
2939 | frame->destroy = 0; |
|
|
2940 | |
|
|
2941 | if (acquire) |
|
|
2942 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2943 | else |
|
|
2944 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2945 | |
|
|
2946 | return 0; |
|
|
2947 | } |
|
|
2948 | else |
|
|
2949 | { |
|
|
2950 | int i; |
|
|
2951 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2952 | /* waiters list and only add us if we aren't in there already */ |
|
|
2953 | /* this avoids some degenerate memory usage cases */ |
|
|
2954 | for (i = AvFILLp (av); i > 0; --i) // i > 0 is not an off-by-one bug |
|
|
2955 | if (AvARRAY (av)[i] == coro_hv) |
|
|
2956 | return 1; |
|
|
2957 | |
|
|
2958 | av_push (av, SvREFCNT_inc (coro_hv)); |
|
|
2959 | return 1; |
|
|
2960 | } |
|
|
2961 | } |
|
|
2962 | |
|
|
2963 | static int |
|
|
2964 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2965 | { |
|
|
2966 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2967 | } |
|
|
2968 | |
|
|
2969 | static int |
|
|
2970 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2971 | { |
|
|
2972 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2973 | } |
|
|
2974 | |
|
|
2975 | static void |
|
|
2976 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2977 | { |
|
|
2978 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2979 | |
|
|
2980 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2981 | { |
|
|
2982 | frame->data = (void *)av; |
|
|
2983 | frame->prepare = prepare_nop; |
|
|
2984 | } |
|
|
2985 | else |
|
|
2986 | { |
|
|
2987 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2988 | |
|
|
2989 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2990 | frame->prepare = prepare_schedule; |
|
|
2991 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2992 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2993 | frame->destroy = coro_semaphore_destroy; |
|
|
2994 | } |
|
|
2995 | } |
|
|
2996 | |
|
|
2997 | static void |
|
|
2998 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2999 | { |
|
|
3000 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3001 | frame->check = slf_check_semaphore_down; |
|
|
3002 | } |
|
|
3003 | |
|
|
3004 | static void |
|
|
3005 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3006 | { |
|
|
3007 | if (items >= 2) |
|
|
3008 | { |
|
|
3009 | /* callback form */ |
|
|
3010 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3011 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3012 | |
|
|
3013 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3014 | |
|
|
3015 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
3016 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
3017 | |
|
|
3018 | frame->prepare = prepare_nop; |
|
|
3019 | frame->check = slf_check_nop; |
|
|
3020 | } |
|
|
3021 | else |
|
|
3022 | { |
|
|
3023 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
3024 | frame->check = slf_check_semaphore_wait; |
|
|
3025 | } |
|
|
3026 | } |
|
|
3027 | |
|
|
3028 | /* signal */ |
|
|
3029 | |
|
|
3030 | static void |
|
|
3031 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
3032 | { |
|
|
3033 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3034 | |
|
|
3035 | /* now signal count waiters */ |
|
|
3036 | while (count > 0 && AvFILLp (av) > 0) |
|
|
3037 | { |
|
|
3038 | SV *cb; |
|
|
3039 | |
|
|
3040 | /* swap first two elements so we can shift a waiter */ |
|
|
3041 | cb = AvARRAY (av)[0]; |
|
|
3042 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
3043 | AvARRAY (av)[1] = cb; |
|
|
3044 | |
|
|
3045 | cb = av_shift (av); |
|
|
3046 | |
|
|
3047 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
3048 | { |
|
|
3049 | dSP; |
|
|
3050 | PUSHMARK (SP); |
|
|
3051 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
3052 | PUTBACK; |
|
|
3053 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
3054 | } |
|
|
3055 | else |
|
|
3056 | { |
|
|
3057 | api_ready (aTHX_ cb); |
|
|
3058 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
3059 | } |
|
|
3060 | |
|
|
3061 | SvREFCNT_dec (cb); |
|
|
3062 | |
|
|
3063 | --count; |
|
|
3064 | } |
|
|
3065 | } |
|
|
3066 | |
|
|
3067 | static int |
|
|
3068 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
3069 | { |
|
|
3070 | /* if we are about to throw, also stop waiting */ |
|
|
3071 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
3072 | } |
|
|
3073 | |
|
|
3074 | static void |
|
|
3075 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3076 | { |
|
|
3077 | AV *av = (AV *)SvRV (arg [0]); |
|
|
3078 | |
|
|
3079 | if (items >= 2) |
|
|
3080 | { |
|
|
3081 | SV *cb_cv = s_get_cv_croak (arg [1]); |
|
|
3082 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
3083 | |
|
|
3084 | if (SvIVX (AvARRAY (av)[0])) |
|
|
3085 | coro_signal_wake (aTHX_ av, 1); /* must be the only waiter */ |
|
|
3086 | |
|
|
3087 | frame->prepare = prepare_nop; |
|
|
3088 | frame->check = slf_check_nop; |
|
|
3089 | } |
|
|
3090 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
3091 | { |
|
|
3092 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
3093 | frame->prepare = prepare_nop; |
|
|
3094 | frame->check = slf_check_nop; |
|
|
3095 | } |
|
|
3096 | else |
|
|
3097 | { |
|
|
3098 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
3099 | |
|
|
3100 | av_push (av, waiter); |
|
|
3101 | |
|
|
3102 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
3103 | frame->prepare = prepare_schedule; |
|
|
3104 | frame->check = slf_check_signal_wait; |
|
|
3105 | } |
|
|
3106 | } |
|
|
3107 | |
|
|
3108 | /*****************************************************************************/ |
|
|
3109 | /* Coro::AIO */ |
|
|
3110 | |
|
|
3111 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
3112 | |
|
|
3113 | /* helper storage struct */ |
|
|
3114 | struct io_state |
|
|
3115 | { |
|
|
3116 | int errorno; |
|
|
3117 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
3118 | int laststatval; |
|
|
3119 | Stat_t statcache; |
|
|
3120 | }; |
|
|
3121 | |
|
|
3122 | static void |
|
|
3123 | coro_aio_callback (pTHX_ CV *cv) |
|
|
3124 | { |
|
|
3125 | dXSARGS; |
|
|
3126 | AV *state = (AV *)S_GENSUB_ARG; |
|
|
3127 | SV *coro = av_pop (state); |
|
|
3128 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
3129 | |
|
|
3130 | av_extend (state, items - 1); |
|
|
3131 | |
|
|
3132 | sv_upgrade (data_sv, SVt_PV); |
|
|
3133 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
3134 | SvPOK_only (data_sv); |
|
|
3135 | |
|
|
3136 | { |
|
|
3137 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3138 | |
|
|
3139 | data->errorno = errno; |
|
|
3140 | data->laststype = PL_laststype; |
|
|
3141 | data->laststatval = PL_laststatval; |
|
|
3142 | data->statcache = PL_statcache; |
|
|
3143 | } |
|
|
3144 | |
|
|
3145 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
3146 | { |
|
|
3147 | int i; |
|
|
3148 | |
|
|
3149 | for (i = 0; i < items; ++i) |
|
|
3150 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
3151 | } |
|
|
3152 | |
|
|
3153 | av_push (state, data_sv); |
|
|
3154 | |
|
|
3155 | api_ready (aTHX_ coro); |
|
|
3156 | SvREFCNT_dec (coro); |
|
|
3157 | SvREFCNT_dec ((AV *)state); |
|
|
3158 | } |
|
|
3159 | |
|
|
3160 | static int |
|
|
3161 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
3162 | { |
|
|
3163 | AV *state = (AV *)frame->data; |
|
|
3164 | |
|
|
3165 | /* if we are about to throw, return early */ |
|
|
3166 | /* this does not cancel the aio request, but at least */ |
|
|
3167 | /* it quickly returns */ |
|
|
3168 | if (CORO_THROW) |
|
|
3169 | return 0; |
|
|
3170 | |
|
|
3171 | /* one element that is an RV? repeat! */ |
|
|
3172 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
3173 | return 1; |
|
|
3174 | |
|
|
3175 | /* restore status */ |
|
|
3176 | { |
|
|
3177 | SV *data_sv = av_pop (state); |
|
|
3178 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
3179 | |
|
|
3180 | errno = data->errorno; |
|
|
3181 | PL_laststype = data->laststype; |
|
|
3182 | PL_laststatval = data->laststatval; |
|
|
3183 | PL_statcache = data->statcache; |
|
|
3184 | |
|
|
3185 | SvREFCNT_dec (data_sv); |
|
|
3186 | } |
|
|
3187 | |
|
|
3188 | /* push result values */ |
|
|
3189 | { |
1850 | dSP; |
3190 | dSP; |
|
|
3191 | int i; |
1851 | |
3192 | |
|
|
3193 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
3194 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
3195 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
3196 | |
|
|
3197 | PUTBACK; |
|
|
3198 | } |
|
|
3199 | |
|
|
3200 | return 0; |
|
|
3201 | } |
|
|
3202 | |
|
|
3203 | static void |
|
|
3204 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
3205 | { |
|
|
3206 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
3207 | SV *coro_hv = SvRV (coro_current); |
|
|
3208 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
3209 | |
|
|
3210 | /* put our coroutine id on the state arg */ |
|
|
3211 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
3212 | |
|
|
3213 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
3214 | if (coro->prio) |
|
|
3215 | { |
|
|
3216 | dSP; |
|
|
3217 | |
|
|
3218 | static SV *prio_cv; |
|
|
3219 | static SV *prio_sv; |
|
|
3220 | |
|
|
3221 | if (expect_false (!prio_cv)) |
|
|
3222 | { |
|
|
3223 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
3224 | prio_sv = newSViv (0); |
|
|
3225 | } |
|
|
3226 | |
|
|
3227 | PUSHMARK (SP); |
|
|
3228 | sv_setiv (prio_sv, coro->prio); |
|
|
3229 | XPUSHs (prio_sv); |
|
|
3230 | |
|
|
3231 | PUTBACK; |
|
|
3232 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
3233 | } |
|
|
3234 | |
|
|
3235 | /* now call the original request */ |
|
|
3236 | { |
|
|
3237 | dSP; |
|
|
3238 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
3239 | int i; |
|
|
3240 | |
1852 | PUSHMARK (SP); |
3241 | PUSHMARK (SP); |
1853 | |
3242 | |
1854 | EXTEND (SP, 3); |
3243 | /* first push all args to the stack */ |
1855 | if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0; |
3244 | EXTEND (SP, items + 1); |
1856 | if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0; |
|
|
1857 | PUSHs ((SV *)CvGV (ssl_cv)); |
|
|
1858 | |
3245 | |
1859 | RETURNOP (ssl_restore.op_first); |
3246 | for (i = 0; i < items; ++i) |
1860 | } |
3247 | PUSHs (arg [i]); |
1861 | |
3248 | |
1862 | #define OPpENTERSUB_SSL 15 /* the part of op_private entersub hopefully doesn't use */ |
3249 | /* now push the callback closure */ |
|
|
3250 | PUSHs (sv_2mortal (s_gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
1863 | |
3251 | |
1864 | /* declare prototype */ |
3252 | /* now call the AIO function - we assume our request is uncancelable */ |
1865 | XS(XS_Coro__State__set_stacklevel); |
|
|
1866 | |
|
|
1867 | /* |
|
|
1868 | * these not obviously related functions are all rolled into one |
|
|
1869 | * function to increase chances that they all will call transfer with the same |
|
|
1870 | * stack offset |
|
|
1871 | */ |
|
|
1872 | static OP * |
|
|
1873 | pp_set_stacklevel (pTHX) |
|
|
1874 | { |
|
|
1875 | dSP; |
|
|
1876 | struct transfer_args ta; |
|
|
1877 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1878 | int items = SP - arg; /* args without function object */ |
|
|
1879 | |
|
|
1880 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1881 | /* for us, divert to the real entersub */ |
|
|
1882 | if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel) |
|
|
1883 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1884 | |
|
|
1885 | /* pop args */ |
|
|
1886 | SP = PL_stack_base + POPMARK; |
|
|
1887 | |
|
|
1888 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1889 | { |
|
|
1890 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1891 | AV *av = GvAV (PL_defgv); |
|
|
1892 | arg = AvARRAY (av); |
|
|
1893 | items = AvFILLp (av) + 1; |
|
|
1894 | } |
|
|
1895 | |
|
|
1896 | PUTBACK; |
3253 | PUTBACK; |
1897 | switch (PL_op->op_private & OPpENTERSUB_SSL) |
3254 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
1898 | { |
3255 | } |
1899 | case 0: |
|
|
1900 | prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0])); |
|
|
1901 | break; |
|
|
1902 | |
3256 | |
1903 | case 1: |
3257 | /* now that the request is going, we loop till we have a result */ |
1904 | if (items != 2) |
3258 | frame->data = (void *)state; |
1905 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items); |
3259 | frame->prepare = prepare_schedule; |
|
|
3260 | frame->check = slf_check_aio_req; |
|
|
3261 | } |
1906 | |
3262 | |
1907 | prepare_transfer (aTHX_ &ta, arg [0], arg [1]); |
3263 | static void |
1908 | break; |
3264 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
3265 | { |
|
|
3266 | dXSARGS; |
1909 | |
3267 | |
1910 | case 2: |
3268 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
1911 | prepare_schedule (aTHX_ &ta); |
|
|
1912 | break; |
|
|
1913 | |
3269 | |
1914 | case 3: |
3270 | XSRETURN_EMPTY; |
1915 | prepare_cede (aTHX_ &ta); |
3271 | } |
1916 | break; |
|
|
1917 | |
3272 | |
1918 | case 4: |
3273 | /*****************************************************************************/ |
1919 | prepare_cede_notself (aTHX_ &ta); |
3274 | |
1920 | break; |
3275 | #if CORO_CLONE |
|
|
3276 | # include "clone.c" |
|
|
3277 | #endif |
|
|
3278 | |
|
|
3279 | /*****************************************************************************/ |
|
|
3280 | |
|
|
3281 | static SV * |
|
|
3282 | coro_new (pTHX_ HV *stash, SV **argv, int argc, int is_coro) |
|
|
3283 | { |
|
|
3284 | SV *coro_sv; |
|
|
3285 | struct coro *coro; |
|
|
3286 | MAGIC *mg; |
|
|
3287 | HV *hv; |
|
|
3288 | SV *cb; |
|
|
3289 | int i; |
|
|
3290 | |
|
|
3291 | if (argc > 0) |
1921 | } |
3292 | { |
|
|
3293 | cb = s_get_cv_croak (argv [0]); |
1922 | |
3294 | |
1923 | TRANSFER (ta, 0); |
3295 | if (!is_coro) |
1924 | SPAGAIN; |
3296 | { |
|
|
3297 | if (CvISXSUB (cb)) |
|
|
3298 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
1925 | |
3299 | |
1926 | skip: |
3300 | if (!CvROOT (cb)) |
1927 | PUTBACK; |
3301 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
1928 | SSL_TAIL; |
3302 | } |
1929 | SPAGAIN; |
3303 | } |
1930 | RETURN; |
|
|
1931 | } |
|
|
1932 | |
3304 | |
1933 | static void |
3305 | Newz (0, coro, 1, struct coro); |
1934 | coro_ssl_patch (pTHX_ CV *cv, int ix, SV **args, int items) |
3306 | coro->args = newAV (); |
1935 | { |
3307 | coro->flags = CF_NEW; |
1936 | assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel)); |
|
|
1937 | |
3308 | |
1938 | assert (("FATAL: ssl call with illegal CV value", CvGV (cv))); |
3309 | if (coro_first) coro_first->prev = coro; |
1939 | ssl_cv = cv; |
3310 | coro->next = coro_first; |
|
|
3311 | coro_first = coro; |
1940 | |
3312 | |
1941 | /* we patch the op, and then re-run the whole call */ |
3313 | coro->hv = hv = newHV (); |
1942 | /* we have to put some dummy argument on the stack for this to work */ |
3314 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
1943 | ssl_restore.op_next = (OP *)&ssl_restore; |
3315 | mg->mg_flags |= MGf_DUP; |
1944 | ssl_restore.op_type = OP_NULL; |
3316 | coro_sv = sv_bless (newRV_noinc ((SV *)hv), stash); |
1945 | ssl_restore.op_ppaddr = pp_restore; |
|
|
1946 | ssl_restore.op_first = PL_op; |
|
|
1947 | |
3317 | |
1948 | ssl_arg0 = items > 0 ? SvREFCNT_inc (args [0]) : 0; |
3318 | if (argc > 0) |
1949 | ssl_arg1 = items > 1 ? SvREFCNT_inc (args [1]) : 0; |
3319 | { |
|
|
3320 | av_extend (coro->args, argc + is_coro - 1); |
1950 | |
3321 | |
1951 | PL_op->op_ppaddr = pp_set_stacklevel; |
3322 | if (is_coro) |
1952 | PL_op->op_private = PL_op->op_private & ~OPpENTERSUB_SSL | ix; /* we potentially share our private flags with entersub */ |
3323 | { |
|
|
3324 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3325 | cb = (SV *)cv_coro_run; |
|
|
3326 | } |
1953 | |
3327 | |
1954 | PL_op = (OP *)&ssl_restore; |
3328 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3329 | |
|
|
3330 | for (i = 1; i < argc; i++) |
|
|
3331 | av_push (coro->args, newSVsv (argv [i])); |
|
|
3332 | } |
|
|
3333 | |
|
|
3334 | return coro_sv; |
1955 | } |
3335 | } |
1956 | |
3336 | |
1957 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
3337 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1958 | |
3338 | |
1959 | PROTOTYPES: DISABLE |
3339 | PROTOTYPES: DISABLE |
1960 | |
3340 | |
1961 | BOOT: |
3341 | BOOT: |
1962 | { |
3342 | { |
1963 | #ifdef USE_ITHREADS |
3343 | #ifdef USE_ITHREADS |
1964 | MUTEX_INIT (&coro_lock); |
|
|
1965 | # if CORO_PTHREAD |
3344 | # if CORO_PTHREAD |
1966 | coro_thx = PERL_GET_CONTEXT; |
3345 | coro_thx = PERL_GET_CONTEXT; |
1967 | # endif |
3346 | # endif |
1968 | #endif |
3347 | #endif |
1969 | BOOT_PAGESIZE; |
3348 | BOOT_PAGESIZE; |
1970 | |
3349 | |
|
|
3350 | cctx_current = cctx_new_empty (); |
|
|
3351 | |
1971 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3352 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1972 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3353 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1973 | |
3354 | |
1974 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
3355 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
1975 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
3356 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
… | |
… | |
1990 | main_top_env = PL_top_env; |
3371 | main_top_env = PL_top_env; |
1991 | |
3372 | |
1992 | while (main_top_env->je_prev) |
3373 | while (main_top_env->je_prev) |
1993 | main_top_env = main_top_env->je_prev; |
3374 | main_top_env = main_top_env->je_prev; |
1994 | |
3375 | |
1995 | coroapi.ver = CORO_API_VERSION; |
|
|
1996 | coroapi.rev = CORO_API_REVISION; |
|
|
1997 | coroapi.transfer = api_transfer; |
|
|
1998 | |
|
|
1999 | { |
3376 | { |
2000 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
3377 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
2001 | |
3378 | |
2002 | if (!svp) croak ("Time::HiRes is required"); |
3379 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
2003 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
3380 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
2004 | |
3381 | |
2005 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
3382 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3383 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
2006 | } |
3384 | } |
2007 | |
3385 | |
|
|
3386 | coroapi.ver = CORO_API_VERSION; |
|
|
3387 | coroapi.rev = CORO_API_REVISION; |
|
|
3388 | |
|
|
3389 | coroapi.transfer = api_transfer; |
|
|
3390 | |
|
|
3391 | coroapi.sv_state = SvSTATE_; |
|
|
3392 | coroapi.execute_slf = api_execute_slf; |
|
|
3393 | coroapi.prepare_nop = prepare_nop; |
|
|
3394 | coroapi.prepare_schedule = prepare_schedule; |
|
|
3395 | coroapi.prepare_cede = prepare_cede; |
|
|
3396 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
3397 | |
|
|
3398 | time_init (aTHX); |
|
|
3399 | |
2008 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3400 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
2009 | } |
3401 | } |
2010 | |
3402 | |
2011 | SV * |
3403 | SV * |
2012 | new (char *klass, ...) |
3404 | new (SV *klass, ...) |
|
|
3405 | ALIAS: |
|
|
3406 | Coro::new = 1 |
2013 | CODE: |
3407 | CODE: |
2014 | { |
3408 | RETVAL = coro_new (aTHX_ ix ? coro_stash : coro_state_stash, &ST (1), items - 1, ix); |
2015 | struct coro *coro; |
|
|
2016 | MAGIC *mg; |
|
|
2017 | HV *hv; |
|
|
2018 | int i; |
|
|
2019 | |
|
|
2020 | Newz (0, coro, 1, struct coro); |
|
|
2021 | coro->args = newAV (); |
|
|
2022 | coro->flags = CF_NEW; |
|
|
2023 | |
|
|
2024 | if (coro_first) coro_first->prev = coro; |
|
|
2025 | coro->next = coro_first; |
|
|
2026 | coro_first = coro; |
|
|
2027 | |
|
|
2028 | coro->hv = hv = newHV (); |
|
|
2029 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
2030 | mg->mg_flags |= MGf_DUP; |
|
|
2031 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
2032 | |
|
|
2033 | av_extend (coro->args, items - 1); |
|
|
2034 | for (i = 1; i < items; i++) |
|
|
2035 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2036 | } |
|
|
2037 | OUTPUT: |
|
|
2038 | RETVAL |
|
|
2039 | |
|
|
2040 | void |
|
|
2041 | _set_stacklevel (...) |
|
|
2042 | ALIAS: |
|
|
2043 | Coro::State::transfer = 1 |
|
|
2044 | Coro::schedule = 2 |
|
|
2045 | Coro::cede = 3 |
|
|
2046 | Coro::cede_notself = 4 |
|
|
2047 | CODE: |
|
|
2048 | coro_ssl_patch (aTHX_ cv, ix, &ST (0), items); |
|
|
2049 | |
|
|
2050 | bool |
|
|
2051 | _destroy (SV *coro_sv) |
|
|
2052 | CODE: |
|
|
2053 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
2054 | OUTPUT: |
3409 | OUTPUT: |
2055 | RETVAL |
3410 | RETVAL |
|
|
3411 | |
|
|
3412 | void |
|
|
3413 | transfer (...) |
|
|
3414 | PROTOTYPE: $$ |
|
|
3415 | CODE: |
|
|
3416 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
2056 | |
3417 | |
2057 | void |
3418 | void |
2058 | _exit (int code) |
3419 | _exit (int code) |
2059 | PROTOTYPE: $ |
3420 | PROTOTYPE: $ |
2060 | CODE: |
3421 | CODE: |
2061 | _exit (code); |
3422 | _exit (code); |
2062 | |
3423 | |
|
|
3424 | SV * |
|
|
3425 | clone (Coro::State coro) |
|
|
3426 | CODE: |
|
|
3427 | { |
|
|
3428 | #if CORO_CLONE |
|
|
3429 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3430 | MAGIC *mg; |
|
|
3431 | /* TODO: too much duplication */ |
|
|
3432 | ncoro->hv = newHV (); |
|
|
3433 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3434 | mg->mg_flags |= MGf_DUP; |
|
|
3435 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3436 | #else |
|
|
3437 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3438 | #endif |
|
|
3439 | } |
|
|
3440 | OUTPUT: |
|
|
3441 | RETVAL |
|
|
3442 | |
2063 | int |
3443 | int |
2064 | cctx_stacksize (int new_stacksize = 0) |
3444 | cctx_stacksize (int new_stacksize = 0) |
|
|
3445 | PROTOTYPE: ;$ |
2065 | CODE: |
3446 | CODE: |
2066 | RETVAL = cctx_stacksize; |
3447 | RETVAL = cctx_stacksize; |
2067 | if (new_stacksize) |
3448 | if (new_stacksize) |
2068 | { |
3449 | { |
2069 | cctx_stacksize = new_stacksize; |
3450 | cctx_stacksize = new_stacksize; |
… | |
… | |
2072 | OUTPUT: |
3453 | OUTPUT: |
2073 | RETVAL |
3454 | RETVAL |
2074 | |
3455 | |
2075 | int |
3456 | int |
2076 | cctx_max_idle (int max_idle = 0) |
3457 | cctx_max_idle (int max_idle = 0) |
|
|
3458 | PROTOTYPE: ;$ |
2077 | CODE: |
3459 | CODE: |
2078 | RETVAL = cctx_max_idle; |
3460 | RETVAL = cctx_max_idle; |
2079 | if (max_idle > 1) |
3461 | if (max_idle > 1) |
2080 | cctx_max_idle = max_idle; |
3462 | cctx_max_idle = max_idle; |
2081 | OUTPUT: |
3463 | OUTPUT: |
2082 | RETVAL |
3464 | RETVAL |
2083 | |
3465 | |
2084 | int |
3466 | int |
2085 | cctx_count () |
3467 | cctx_count () |
|
|
3468 | PROTOTYPE: |
2086 | CODE: |
3469 | CODE: |
2087 | RETVAL = cctx_count; |
3470 | RETVAL = cctx_count; |
2088 | OUTPUT: |
3471 | OUTPUT: |
2089 | RETVAL |
3472 | RETVAL |
2090 | |
3473 | |
2091 | int |
3474 | int |
2092 | cctx_idle () |
3475 | cctx_idle () |
|
|
3476 | PROTOTYPE: |
2093 | CODE: |
3477 | CODE: |
2094 | RETVAL = cctx_idle; |
3478 | RETVAL = cctx_idle; |
2095 | OUTPUT: |
3479 | OUTPUT: |
2096 | RETVAL |
3480 | RETVAL |
2097 | |
3481 | |
2098 | void |
3482 | void |
2099 | list () |
3483 | list () |
|
|
3484 | PROTOTYPE: |
2100 | PPCODE: |
3485 | PPCODE: |
2101 | { |
3486 | { |
2102 | struct coro *coro; |
3487 | struct coro *coro; |
2103 | for (coro = coro_first; coro; coro = coro->next) |
3488 | for (coro = coro_first; coro; coro = coro->next) |
2104 | if (coro->hv) |
3489 | if (coro->hv) |
… | |
… | |
2111 | eval = 1 |
3496 | eval = 1 |
2112 | CODE: |
3497 | CODE: |
2113 | { |
3498 | { |
2114 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
3499 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
2115 | { |
3500 | { |
2116 | struct coro temp; |
3501 | struct coro *current = SvSTATE_current; |
|
|
3502 | struct CoroSLF slf_save; |
2117 | |
3503 | |
2118 | if (!(coro->flags & CF_RUNNING)) |
3504 | if (current != coro) |
2119 | { |
3505 | { |
2120 | PUTBACK; |
3506 | PUTBACK; |
2121 | save_perl (aTHX_ &temp); |
3507 | save_perl (aTHX_ current); |
2122 | load_perl (aTHX_ coro); |
3508 | load_perl (aTHX_ coro); |
|
|
3509 | /* the coro is most likely in an active SLF call. |
|
|
3510 | * while not strictly required (the code we execute is |
|
|
3511 | * not allowed to call any SLF functions), it's cleaner |
|
|
3512 | * to reinitialise the slf_frame and restore it later. |
|
|
3513 | * This might one day allow us to actually do SLF calls |
|
|
3514 | * from code executed here. |
|
|
3515 | */ |
|
|
3516 | slf_save = slf_frame; |
|
|
3517 | slf_frame.prepare = 0; |
|
|
3518 | SPAGAIN; |
2123 | } |
3519 | } |
2124 | |
3520 | |
2125 | { |
|
|
2126 | dSP; |
|
|
2127 | ENTER; |
|
|
2128 | SAVETMPS; |
|
|
2129 | PUTBACK; |
|
|
2130 | PUSHSTACK; |
3521 | PUSHSTACK; |
|
|
3522 | |
2131 | PUSHMARK (SP); |
3523 | PUSHMARK (SP); |
|
|
3524 | PUTBACK; |
2132 | |
3525 | |
2133 | if (ix) |
3526 | if (ix) |
2134 | eval_sv (coderef, 0); |
3527 | eval_sv (coderef, 0); |
2135 | else |
3528 | else |
2136 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3529 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2137 | |
3530 | |
2138 | POPSTACK; |
3531 | POPSTACK; |
2139 | SPAGAIN; |
3532 | SPAGAIN; |
2140 | FREETMPS; |
|
|
2141 | LEAVE; |
|
|
2142 | PUTBACK; |
|
|
2143 | } |
|
|
2144 | |
3533 | |
2145 | if (!(coro->flags & CF_RUNNING)) |
3534 | if (current != coro) |
2146 | { |
3535 | { |
|
|
3536 | PUTBACK; |
|
|
3537 | slf_frame = slf_save; |
2147 | save_perl (aTHX_ coro); |
3538 | save_perl (aTHX_ coro); |
2148 | load_perl (aTHX_ &temp); |
3539 | load_perl (aTHX_ current); |
2149 | SPAGAIN; |
3540 | SPAGAIN; |
2150 | } |
3541 | } |
2151 | } |
3542 | } |
2152 | } |
3543 | } |
2153 | |
3544 | |
… | |
… | |
2157 | ALIAS: |
3548 | ALIAS: |
2158 | is_ready = CF_READY |
3549 | is_ready = CF_READY |
2159 | is_running = CF_RUNNING |
3550 | is_running = CF_RUNNING |
2160 | is_new = CF_NEW |
3551 | is_new = CF_NEW |
2161 | is_destroyed = CF_DESTROYED |
3552 | is_destroyed = CF_DESTROYED |
|
|
3553 | is_suspended = CF_SUSPENDED |
2162 | CODE: |
3554 | CODE: |
2163 | RETVAL = boolSV (coro->flags & ix); |
3555 | RETVAL = boolSV (coro->flags & ix); |
2164 | OUTPUT: |
3556 | OUTPUT: |
2165 | RETVAL |
3557 | RETVAL |
2166 | |
3558 | |
2167 | void |
3559 | void |
2168 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3560 | throw (Coro::State self, SV *exception = &PL_sv_undef) |
2169 | PROTOTYPE: $;$ |
3561 | PROTOTYPE: $;$ |
2170 | CODE: |
3562 | CODE: |
|
|
3563 | { |
|
|
3564 | struct coro *current = SvSTATE_current; |
|
|
3565 | SV **exceptionp = self == current ? &CORO_THROW : &self->except; |
2171 | SvREFCNT_dec (self->throw); |
3566 | SvREFCNT_dec (*exceptionp); |
2172 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
3567 | SvGETMAGIC (exception); |
|
|
3568 | *exceptionp = SvOK (exception) ? newSVsv (exception) : 0; |
|
|
3569 | } |
2173 | |
3570 | |
2174 | void |
3571 | void |
2175 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3572 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3573 | PROTOTYPE: $;$ |
|
|
3574 | C_ARGS: aTHX_ coro, flags |
2176 | |
3575 | |
2177 | SV * |
3576 | SV * |
2178 | has_cctx (Coro::State coro) |
3577 | has_cctx (Coro::State coro) |
2179 | PROTOTYPE: $ |
3578 | PROTOTYPE: $ |
2180 | CODE: |
3579 | CODE: |
2181 | RETVAL = boolSV (!!coro->cctx); |
3580 | /* maybe manage the running flag differently */ |
|
|
3581 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
2182 | OUTPUT: |
3582 | OUTPUT: |
2183 | RETVAL |
3583 | RETVAL |
2184 | |
3584 | |
2185 | int |
3585 | int |
2186 | is_traced (Coro::State coro) |
3586 | is_traced (Coro::State coro) |
… | |
… | |
2204 | OUTPUT: |
3604 | OUTPUT: |
2205 | RETVAL |
3605 | RETVAL |
2206 | |
3606 | |
2207 | void |
3607 | void |
2208 | force_cctx () |
3608 | force_cctx () |
|
|
3609 | PROTOTYPE: |
2209 | CODE: |
3610 | CODE: |
2210 | struct coro *coro = SvSTATE (coro_current); |
|
|
2211 | coro->cctx->idle_sp = 0; |
3611 | cctx_current->idle_sp = 0; |
2212 | |
3612 | |
2213 | void |
3613 | void |
2214 | swap_defsv (Coro::State self) |
3614 | swap_defsv (Coro::State self) |
2215 | PROTOTYPE: $ |
3615 | PROTOTYPE: $ |
2216 | ALIAS: |
3616 | ALIAS: |
2217 | swap_defav = 1 |
3617 | swap_defav = 1 |
2218 | CODE: |
3618 | CODE: |
2219 | if (!self->slot) |
3619 | if (!self->slot) |
2220 | croak ("cannot swap state with coroutine that has no saved state"); |
3620 | croak ("cannot swap state with coroutine that has no saved state,"); |
2221 | else |
3621 | else |
2222 | { |
3622 | { |
2223 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
3623 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2224 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3624 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2225 | |
3625 | |
2226 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3626 | SV *tmp = *src; *src = *dst; *dst = tmp; |
2227 | } |
3627 | } |
2228 | |
3628 | |
|
|
3629 | void |
|
|
3630 | cancel (Coro::State self) |
|
|
3631 | CODE: |
|
|
3632 | coro_state_destroy (aTHX_ self); |
|
|
3633 | |
|
|
3634 | SV * |
|
|
3635 | enable_times (int enabled = enable_times) |
|
|
3636 | CODE: |
|
|
3637 | { |
|
|
3638 | RETVAL = boolSV (enable_times); |
|
|
3639 | |
|
|
3640 | if (enabled != enable_times) |
|
|
3641 | { |
|
|
3642 | enable_times = enabled; |
|
|
3643 | |
|
|
3644 | coro_times_update (); |
|
|
3645 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3646 | } |
|
|
3647 | } |
|
|
3648 | OUTPUT: |
|
|
3649 | RETVAL |
|
|
3650 | |
|
|
3651 | void |
|
|
3652 | times (Coro::State self) |
|
|
3653 | PPCODE: |
|
|
3654 | { |
|
|
3655 | struct coro *current = SvSTATE (coro_current); |
|
|
3656 | |
|
|
3657 | if (expect_false (current == self)) |
|
|
3658 | { |
|
|
3659 | coro_times_update (); |
|
|
3660 | coro_times_add (SvSTATE (coro_current)); |
|
|
3661 | } |
|
|
3662 | |
|
|
3663 | EXTEND (SP, 2); |
|
|
3664 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3665 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3666 | |
|
|
3667 | if (expect_false (current == self)) |
|
|
3668 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3669 | } |
|
|
3670 | |
|
|
3671 | void |
|
|
3672 | swap_sv (Coro::State coro, SV *sv, SV *swapsv) |
|
|
3673 | CODE: |
|
|
3674 | { |
|
|
3675 | struct coro *current = SvSTATE_current; |
|
|
3676 | |
|
|
3677 | if (current == coro) |
|
|
3678 | SWAP_SVS (current); |
|
|
3679 | |
|
|
3680 | if (!coro->swap_sv) |
|
|
3681 | coro->swap_sv = newAV (); |
|
|
3682 | |
|
|
3683 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (sv ))); |
|
|
3684 | av_push (coro->swap_sv, SvREFCNT_inc_NN (SvRV (swapsv))); |
|
|
3685 | |
|
|
3686 | if (current == coro) |
|
|
3687 | SWAP_SVS (current); |
|
|
3688 | } |
|
|
3689 | |
|
|
3690 | |
2229 | MODULE = Coro::State PACKAGE = Coro |
3691 | MODULE = Coro::State PACKAGE = Coro |
2230 | |
3692 | |
2231 | BOOT: |
3693 | BOOT: |
2232 | { |
3694 | { |
2233 | int i; |
|
|
2234 | |
|
|
2235 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2236 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3695 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2237 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3696 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2238 | |
3697 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
2239 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3698 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
2240 | SvREADONLY_on (coro_current); |
3699 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3700 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3701 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3702 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
2241 | |
3703 | |
|
|
3704 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
|
|
3705 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3706 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3707 | CvNODEBUG_on (get_cv ("Coro::_pool_handler", 0)); /* work around a debugger bug */ |
|
|
3708 | |
2242 | coro_stash = gv_stashpv ("Coro", TRUE); |
3709 | coro_stash = gv_stashpv ("Coro", TRUE); |
2243 | |
3710 | |
2244 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3711 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
2245 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3712 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
2246 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3713 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
2247 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3714 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
2248 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3715 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
2249 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3716 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
2250 | |
|
|
2251 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
2252 | coro_ready[i] = newAV (); |
|
|
2253 | |
3717 | |
2254 | { |
3718 | { |
2255 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
3719 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2256 | |
3720 | |
2257 | coroapi.schedule = api_schedule; |
3721 | coroapi.schedule = api_schedule; |
|
|
3722 | coroapi.schedule_to = api_schedule_to; |
2258 | coroapi.cede = api_cede; |
3723 | coroapi.cede = api_cede; |
2259 | coroapi.cede_notself = api_cede_notself; |
3724 | coroapi.cede_notself = api_cede_notself; |
2260 | coroapi.ready = api_ready; |
3725 | coroapi.ready = api_ready; |
2261 | coroapi.is_ready = api_is_ready; |
3726 | coroapi.is_ready = api_is_ready; |
2262 | coroapi.nready = &coro_nready; |
3727 | coroapi.nready = coro_nready; |
2263 | coroapi.current = coro_current; |
3728 | coroapi.current = coro_current; |
2264 | |
3729 | |
2265 | GCoroAPI = &coroapi; |
3730 | /*GCoroAPI = &coroapi;*/ |
2266 | sv_setiv (sv, (IV)&coroapi); |
3731 | sv_setiv (sv, (IV)&coroapi); |
2267 | SvREADONLY_on (sv); |
3732 | SvREADONLY_on (sv); |
2268 | } |
3733 | } |
2269 | } |
3734 | } |
|
|
3735 | |
|
|
3736 | SV * |
|
|
3737 | async (...) |
|
|
3738 | PROTOTYPE: &@ |
|
|
3739 | CODE: |
|
|
3740 | RETVAL = coro_new (aTHX_ coro_stash, &ST (0), items, 1); |
|
|
3741 | api_ready (aTHX_ RETVAL); |
|
|
3742 | OUTPUT: |
|
|
3743 | RETVAL |
|
|
3744 | |
|
|
3745 | void |
|
|
3746 | _destroy (Coro::State coro) |
|
|
3747 | CODE: |
|
|
3748 | /* used by the manager thread */ |
|
|
3749 | coro_state_destroy (aTHX_ coro); |
|
|
3750 | |
|
|
3751 | void |
|
|
3752 | on_destroy (Coro::State coro, SV *cb) |
|
|
3753 | CODE: |
|
|
3754 | coro_push_on_destroy (aTHX_ coro, newSVsv (cb)); |
|
|
3755 | |
|
|
3756 | void |
|
|
3757 | join (...) |
|
|
3758 | CODE: |
|
|
3759 | CORO_EXECUTE_SLF_XS (slf_init_join); |
|
|
3760 | |
|
|
3761 | void |
|
|
3762 | terminate (...) |
|
|
3763 | CODE: |
|
|
3764 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3765 | |
|
|
3766 | void |
|
|
3767 | cancel (...) |
|
|
3768 | CODE: |
|
|
3769 | CORO_EXECUTE_SLF_XS (slf_init_cancel); |
|
|
3770 | |
|
|
3771 | int |
|
|
3772 | safe_cancel (Coro::State self, ...) |
|
|
3773 | C_ARGS: aTHX_ self, &ST (1), items - 1 |
|
|
3774 | |
|
|
3775 | void |
|
|
3776 | schedule (...) |
|
|
3777 | CODE: |
|
|
3778 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3779 | |
|
|
3780 | void |
|
|
3781 | schedule_to (...) |
|
|
3782 | CODE: |
|
|
3783 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3784 | |
|
|
3785 | void |
|
|
3786 | cede_to (...) |
|
|
3787 | CODE: |
|
|
3788 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3789 | |
|
|
3790 | void |
|
|
3791 | cede (...) |
|
|
3792 | CODE: |
|
|
3793 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3794 | |
|
|
3795 | void |
|
|
3796 | cede_notself (...) |
|
|
3797 | CODE: |
|
|
3798 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
2270 | |
3799 | |
2271 | void |
3800 | void |
2272 | _set_current (SV *current) |
3801 | _set_current (SV *current) |
2273 | PROTOTYPE: $ |
3802 | PROTOTYPE: $ |
2274 | CODE: |
3803 | CODE: |
… | |
… | |
2277 | |
3806 | |
2278 | void |
3807 | void |
2279 | _set_readyhook (SV *hook) |
3808 | _set_readyhook (SV *hook) |
2280 | PROTOTYPE: $ |
3809 | PROTOTYPE: $ |
2281 | CODE: |
3810 | CODE: |
2282 | LOCK; |
|
|
2283 | SvREFCNT_dec (coro_readyhook); |
3811 | SvREFCNT_dec (coro_readyhook); |
|
|
3812 | SvGETMAGIC (hook); |
|
|
3813 | if (SvOK (hook)) |
|
|
3814 | { |
2284 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
3815 | coro_readyhook = newSVsv (hook); |
2285 | UNLOCK; |
3816 | CORO_READYHOOK = invoke_sv_ready_hook_helper; |
|
|
3817 | } |
|
|
3818 | else |
|
|
3819 | { |
|
|
3820 | coro_readyhook = 0; |
|
|
3821 | CORO_READYHOOK = 0; |
|
|
3822 | } |
2286 | |
3823 | |
2287 | int |
3824 | int |
2288 | prio (Coro::State coro, int newprio = 0) |
3825 | prio (Coro::State coro, int newprio = 0) |
|
|
3826 | PROTOTYPE: $;$ |
2289 | ALIAS: |
3827 | ALIAS: |
2290 | nice = 1 |
3828 | nice = 1 |
2291 | CODE: |
3829 | CODE: |
2292 | { |
3830 | { |
2293 | RETVAL = coro->prio; |
3831 | RETVAL = coro->prio; |
… | |
… | |
2295 | if (items > 1) |
3833 | if (items > 1) |
2296 | { |
3834 | { |
2297 | if (ix) |
3835 | if (ix) |
2298 | newprio = coro->prio - newprio; |
3836 | newprio = coro->prio - newprio; |
2299 | |
3837 | |
2300 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
3838 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
2301 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
3839 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
2302 | |
3840 | |
2303 | coro->prio = newprio; |
3841 | coro->prio = newprio; |
2304 | } |
3842 | } |
2305 | } |
3843 | } |
2306 | OUTPUT: |
3844 | OUTPUT: |
… | |
… | |
2308 | |
3846 | |
2309 | SV * |
3847 | SV * |
2310 | ready (SV *self) |
3848 | ready (SV *self) |
2311 | PROTOTYPE: $ |
3849 | PROTOTYPE: $ |
2312 | CODE: |
3850 | CODE: |
2313 | RETVAL = boolSV (api_ready (self)); |
3851 | RETVAL = boolSV (api_ready (aTHX_ self)); |
2314 | OUTPUT: |
3852 | OUTPUT: |
2315 | RETVAL |
3853 | RETVAL |
2316 | |
3854 | |
2317 | int |
3855 | int |
2318 | nready (...) |
3856 | nready (...) |
… | |
… | |
2320 | CODE: |
3858 | CODE: |
2321 | RETVAL = coro_nready; |
3859 | RETVAL = coro_nready; |
2322 | OUTPUT: |
3860 | OUTPUT: |
2323 | RETVAL |
3861 | RETVAL |
2324 | |
3862 | |
2325 | # for async_pool speedup |
|
|
2326 | void |
3863 | void |
2327 | _pool_1 (SV *cb) |
3864 | suspend (Coro::State self) |
|
|
3865 | PROTOTYPE: $ |
2328 | CODE: |
3866 | CODE: |
2329 | { |
3867 | self->flags |= CF_SUSPENDED; |
2330 | struct coro *coro = SvSTATE (coro_current); |
|
|
2331 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2332 | AV *defav = GvAV (PL_defgv); |
|
|
2333 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2334 | AV *invoke_av; |
|
|
2335 | int i, len; |
|
|
2336 | |
3868 | |
2337 | if (!invoke) |
3869 | void |
|
|
3870 | resume (Coro::State self) |
|
|
3871 | PROTOTYPE: $ |
|
|
3872 | CODE: |
|
|
3873 | self->flags &= ~CF_SUSPENDED; |
|
|
3874 | |
|
|
3875 | void |
|
|
3876 | _pool_handler (...) |
|
|
3877 | CODE: |
|
|
3878 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
3879 | |
|
|
3880 | void |
|
|
3881 | async_pool (SV *cv, ...) |
|
|
3882 | PROTOTYPE: &@ |
|
|
3883 | PPCODE: |
|
|
3884 | { |
|
|
3885 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3886 | AV *av = newAV (); |
|
|
3887 | SV *cb = ST (0); |
|
|
3888 | int i; |
|
|
3889 | |
|
|
3890 | av_extend (av, items - 2); |
|
|
3891 | for (i = 1; i < items; ++i) |
|
|
3892 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
3893 | |
|
|
3894 | if ((SV *)hv == &PL_sv_undef) |
2338 | { |
3895 | { |
2339 | SV *old = PL_diehook; |
3896 | SV *sv = coro_new (aTHX_ coro_stash, (SV **)&cv_pool_handler, 1, 1); |
2340 | PL_diehook = 0; |
3897 | hv = (HV *)SvREFCNT_inc_NN (SvRV (sv)); |
2341 | SvREFCNT_dec (old); |
3898 | SvREFCNT_dec (sv); |
2342 | croak ("\3async_pool terminate\2\n"); |
|
|
2343 | } |
3899 | } |
2344 | |
3900 | |
2345 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2346 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2347 | |
|
|
2348 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2349 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2350 | |
|
|
2351 | invoke_av = (AV *)SvRV (invoke); |
|
|
2352 | len = av_len (invoke_av); |
|
|
2353 | |
|
|
2354 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2355 | |
|
|
2356 | if (len > 0) |
|
|
2357 | { |
3901 | { |
2358 | av_fill (defav, len - 1); |
3902 | struct coro *coro = SvSTATE_hv (hv); |
2359 | for (i = 0; i < len; ++i) |
3903 | |
2360 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
3904 | assert (!coro->invoke_cb); |
|
|
3905 | assert (!coro->invoke_av); |
|
|
3906 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3907 | coro->invoke_av = av; |
2361 | } |
3908 | } |
2362 | |
3909 | |
|
|
3910 | api_ready (aTHX_ (SV *)hv); |
|
|
3911 | |
|
|
3912 | if (GIMME_V != G_VOID) |
|
|
3913 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3914 | else |
2363 | SvREFCNT_dec (invoke); |
3915 | SvREFCNT_dec (hv); |
2364 | } |
3916 | } |
2365 | |
3917 | |
2366 | void |
3918 | SV * |
2367 | _pool_2 (SV *cb) |
3919 | rouse_cb () |
|
|
3920 | PROTOTYPE: |
2368 | CODE: |
3921 | CODE: |
2369 | { |
3922 | RETVAL = coro_new_rouse_cb (aTHX); |
2370 | struct coro *coro = SvSTATE (coro_current); |
|
|
2371 | |
|
|
2372 | sv_setsv (cb, &PL_sv_undef); |
|
|
2373 | |
|
|
2374 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2375 | coro->saved_deffh = 0; |
|
|
2376 | |
|
|
2377 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2378 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2379 | { |
|
|
2380 | SV *old = PL_diehook; |
|
|
2381 | PL_diehook = 0; |
|
|
2382 | SvREFCNT_dec (old); |
|
|
2383 | croak ("\3async_pool terminate\2\n"); |
|
|
2384 | } |
|
|
2385 | |
|
|
2386 | av_clear (GvAV (PL_defgv)); |
|
|
2387 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2388 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2389 | |
|
|
2390 | coro->prio = 0; |
|
|
2391 | |
|
|
2392 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2393 | api_trace (coro_current, 0); |
|
|
2394 | |
|
|
2395 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2396 | } |
|
|
2397 | |
|
|
2398 | #if 0 |
|
|
2399 | |
|
|
2400 | void |
|
|
2401 | _generator_call (...) |
|
|
2402 | PROTOTYPE: @ |
|
|
2403 | PPCODE: |
|
|
2404 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2405 | xxxx |
|
|
2406 | abort (); |
|
|
2407 | |
|
|
2408 | SV * |
|
|
2409 | gensub (SV *sub, ...) |
|
|
2410 | PROTOTYPE: &;@ |
|
|
2411 | CODE: |
|
|
2412 | { |
|
|
2413 | struct coro *coro; |
|
|
2414 | MAGIC *mg; |
|
|
2415 | CV *xcv; |
|
|
2416 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2417 | int i; |
|
|
2418 | |
|
|
2419 | CvGV (ncv) = CvGV (cv); |
|
|
2420 | CvFILE (ncv) = CvFILE (cv); |
|
|
2421 | |
|
|
2422 | Newz (0, coro, 1, struct coro); |
|
|
2423 | coro->args = newAV (); |
|
|
2424 | coro->flags = CF_NEW; |
|
|
2425 | |
|
|
2426 | av_extend (coro->args, items - 1); |
|
|
2427 | for (i = 1; i < items; i++) |
|
|
2428 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2429 | |
|
|
2430 | CvISXSUB_on (ncv); |
|
|
2431 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2432 | |
|
|
2433 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2434 | |
|
|
2435 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2436 | CvANON_on (ncv); |
|
|
2437 | |
|
|
2438 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2439 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2440 | } |
|
|
2441 | OUTPUT: |
3923 | OUTPUT: |
2442 | RETVAL |
3924 | RETVAL |
2443 | |
3925 | |
2444 | #endif |
|
|
2445 | |
|
|
2446 | |
|
|
2447 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2448 | |
|
|
2449 | void |
3926 | void |
2450 | _get_state (SV *self) |
3927 | rouse_wait (...) |
|
|
3928 | PROTOTYPE: ;$ |
2451 | PPCODE: |
3929 | PPCODE: |
2452 | { |
3930 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
2453 | AV *defav = GvAV (PL_defgv); |
|
|
2454 | AV *av = newAV (); |
|
|
2455 | int i; |
|
|
2456 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2457 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2458 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2459 | SvPOK_only (data_sv); |
|
|
2460 | |
|
|
2461 | data->errorno = errno; |
|
|
2462 | data->laststype = PL_laststype; |
|
|
2463 | data->laststatval = PL_laststatval; |
|
|
2464 | data->statcache = PL_statcache; |
|
|
2465 | |
|
|
2466 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2467 | |
|
|
2468 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2469 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2470 | |
|
|
2471 | av_push (av, data_sv); |
|
|
2472 | |
|
|
2473 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2474 | |
|
|
2475 | api_ready (self); |
|
|
2476 | } |
|
|
2477 | |
3931 | |
2478 | void |
3932 | void |
2479 | _set_state (SV *state) |
3933 | on_enter (SV *block) |
|
|
3934 | ALIAS: |
|
|
3935 | on_leave = 1 |
2480 | PROTOTYPE: $ |
3936 | PROTOTYPE: & |
|
|
3937 | CODE: |
|
|
3938 | { |
|
|
3939 | struct coro *coro = SvSTATE_current; |
|
|
3940 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
|
|
3941 | |
|
|
3942 | block = s_get_cv_croak (block); |
|
|
3943 | |
|
|
3944 | if (!*avp) |
|
|
3945 | *avp = newAV (); |
|
|
3946 | |
|
|
3947 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
3948 | |
|
|
3949 | if (!ix) |
|
|
3950 | on_enterleave_call (aTHX_ block); |
|
|
3951 | |
|
|
3952 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3953 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
3954 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3955 | } |
|
|
3956 | |
|
|
3957 | |
|
|
3958 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
3959 | |
|
|
3960 | BOOT: |
|
|
3961 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
3962 | |
|
|
3963 | |
|
|
3964 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
3965 | |
|
|
3966 | SV * |
|
|
3967 | new (SV *klass, SV *count = 0) |
|
|
3968 | CODE: |
|
|
3969 | { |
|
|
3970 | int semcnt = 1; |
|
|
3971 | |
|
|
3972 | if (count) |
|
|
3973 | { |
|
|
3974 | SvGETMAGIC (count); |
|
|
3975 | |
|
|
3976 | if (SvOK (count)) |
|
|
3977 | semcnt = SvIV (count); |
|
|
3978 | } |
|
|
3979 | |
|
|
3980 | RETVAL = sv_bless ( |
|
|
3981 | coro_waitarray_new (aTHX_ semcnt), |
|
|
3982 | GvSTASH (CvGV (cv)) |
|
|
3983 | ); |
|
|
3984 | } |
|
|
3985 | OUTPUT: |
|
|
3986 | RETVAL |
|
|
3987 | |
|
|
3988 | # helper for Coro::Channel and others |
|
|
3989 | SV * |
|
|
3990 | _alloc (int count) |
|
|
3991 | CODE: |
|
|
3992 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3993 | OUTPUT: |
|
|
3994 | RETVAL |
|
|
3995 | |
|
|
3996 | SV * |
|
|
3997 | count (SV *self) |
|
|
3998 | CODE: |
|
|
3999 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
4000 | OUTPUT: |
|
|
4001 | RETVAL |
|
|
4002 | |
|
|
4003 | void |
|
|
4004 | up (SV *self, int adjust = 1) |
|
|
4005 | ALIAS: |
|
|
4006 | adjust = 1 |
|
|
4007 | CODE: |
|
|
4008 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
4009 | |
|
|
4010 | void |
|
|
4011 | down (...) |
|
|
4012 | CODE: |
|
|
4013 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
4014 | |
|
|
4015 | void |
|
|
4016 | wait (...) |
|
|
4017 | CODE: |
|
|
4018 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
4019 | |
|
|
4020 | void |
|
|
4021 | try (SV *self) |
|
|
4022 | PPCODE: |
|
|
4023 | { |
|
|
4024 | AV *av = (AV *)SvRV (self); |
|
|
4025 | SV *count_sv = AvARRAY (av)[0]; |
|
|
4026 | IV count = SvIVX (count_sv); |
|
|
4027 | |
|
|
4028 | if (count > 0) |
|
|
4029 | { |
|
|
4030 | --count; |
|
|
4031 | SvIVX (count_sv) = count; |
|
|
4032 | XSRETURN_YES; |
|
|
4033 | } |
|
|
4034 | else |
|
|
4035 | XSRETURN_NO; |
|
|
4036 | } |
|
|
4037 | |
|
|
4038 | void |
|
|
4039 | waiters (SV *self) |
|
|
4040 | PPCODE: |
|
|
4041 | { |
|
|
4042 | AV *av = (AV *)SvRV (self); |
|
|
4043 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
4044 | |
|
|
4045 | if (GIMME_V == G_SCALAR) |
|
|
4046 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
4047 | else |
|
|
4048 | { |
|
|
4049 | int i; |
|
|
4050 | EXTEND (SP, wcount); |
|
|
4051 | for (i = 1; i <= wcount; ++i) |
|
|
4052 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
4053 | } |
|
|
4054 | } |
|
|
4055 | |
|
|
4056 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
4057 | |
|
|
4058 | void |
|
|
4059 | _may_delete (SV *sem, int count, int extra_refs) |
2481 | PPCODE: |
4060 | PPCODE: |
2482 | { |
4061 | { |
2483 | AV *av = (AV *)SvRV (state); |
4062 | AV *av = (AV *)SvRV (sem); |
2484 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2485 | int i; |
|
|
2486 | |
4063 | |
2487 | errno = data->errorno; |
4064 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
2488 | PL_laststype = data->laststype; |
4065 | && AvFILLp (av) == 0 /* no waiters, just count */ |
2489 | PL_laststatval = data->laststatval; |
4066 | && SvIV (AvARRAY (av)[0]) == count) |
2490 | PL_statcache = data->statcache; |
4067 | XSRETURN_YES; |
2491 | |
4068 | |
|
|
4069 | XSRETURN_NO; |
|
|
4070 | } |
|
|
4071 | |
|
|
4072 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
4073 | |
|
|
4074 | SV * |
|
|
4075 | new (SV *klass) |
|
|
4076 | CODE: |
|
|
4077 | RETVAL = sv_bless ( |
|
|
4078 | coro_waitarray_new (aTHX_ 0), |
|
|
4079 | GvSTASH (CvGV (cv)) |
|
|
4080 | ); |
|
|
4081 | OUTPUT: |
|
|
4082 | RETVAL |
|
|
4083 | |
|
|
4084 | void |
|
|
4085 | wait (...) |
|
|
4086 | CODE: |
|
|
4087 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
4088 | |
|
|
4089 | void |
|
|
4090 | broadcast (SV *self) |
|
|
4091 | CODE: |
|
|
4092 | { |
|
|
4093 | AV *av = (AV *)SvRV (self); |
|
|
4094 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
4095 | } |
|
|
4096 | |
|
|
4097 | void |
|
|
4098 | send (SV *self) |
|
|
4099 | CODE: |
|
|
4100 | { |
|
|
4101 | AV *av = (AV *)SvRV (self); |
|
|
4102 | |
2492 | EXTEND (SP, AvFILLp (av)); |
4103 | if (AvFILLp (av)) |
2493 | for (i = 0; i < AvFILLp (av); ++i) |
4104 | coro_signal_wake (aTHX_ av, 1); |
2494 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
4105 | else |
|
|
4106 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
2495 | } |
4107 | } |
|
|
4108 | |
|
|
4109 | IV |
|
|
4110 | awaited (SV *self) |
|
|
4111 | CODE: |
|
|
4112 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
4113 | OUTPUT: |
|
|
4114 | RETVAL |
2496 | |
4115 | |
2497 | |
4116 | |
2498 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
4117 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2499 | |
4118 | |
2500 | BOOT: |
4119 | BOOT: |
2501 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
4120 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2502 | |
4121 | |
2503 | SV * |
4122 | void |
2504 | _schedule (...) |
4123 | _schedule (...) |
2505 | PROTOTYPE: @ |
|
|
2506 | CODE: |
4124 | CODE: |
2507 | { |
4125 | { |
2508 | static int incede; |
4126 | static int incede; |
2509 | |
4127 | |
2510 | api_cede_notself (); |
4128 | api_cede_notself (aTHX); |
2511 | |
4129 | |
2512 | ++incede; |
4130 | ++incede; |
2513 | while (coro_nready >= incede && api_cede ()) |
4131 | while (coro_nready >= incede && api_cede (aTHX)) |
2514 | ; |
4132 | ; |
2515 | |
4133 | |
2516 | sv_setsv (sv_activity, &PL_sv_undef); |
4134 | sv_setsv (sv_activity, &PL_sv_undef); |
2517 | if (coro_nready >= incede) |
4135 | if (coro_nready >= incede) |
2518 | { |
4136 | { |
2519 | PUSHMARK (SP); |
4137 | PUSHMARK (SP); |
2520 | PUTBACK; |
4138 | PUTBACK; |
2521 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
4139 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2522 | SPAGAIN; |
|
|
2523 | } |
4140 | } |
2524 | |
4141 | |
2525 | --incede; |
4142 | --incede; |
2526 | } |
4143 | } |
2527 | |
4144 | |
2528 | |
4145 | |
2529 | MODULE = Coro::State PACKAGE = PerlIO::cede |
4146 | MODULE = Coro::State PACKAGE = Coro::AIO |
2530 | |
4147 | |
2531 | BOOT: |
4148 | void |
2532 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
4149 | _register (char *target, char *proto, SV *req) |
|
|
4150 | CODE: |
|
|
4151 | { |
|
|
4152 | SV *req_cv = s_get_cv_croak (req); |
|
|
4153 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
4154 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
4155 | sv_setpv ((SV *)slf_cv, proto); |
|
|
4156 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
4157 | } |
2533 | |
4158 | |
|
|
4159 | MODULE = Coro::State PACKAGE = Coro::Select |
|
|
4160 | |
|
|
4161 | void |
|
|
4162 | patch_pp_sselect () |
|
|
4163 | CODE: |
|
|
4164 | if (!coro_old_pp_sselect) |
|
|
4165 | { |
|
|
4166 | coro_select_select = (SV *)get_cv ("Coro::Select::select", 0); |
|
|
4167 | coro_old_pp_sselect = PL_ppaddr [OP_SSELECT]; |
|
|
4168 | PL_ppaddr [OP_SSELECT] = coro_pp_sselect; |
|
|
4169 | } |
|
|
4170 | |
|
|
4171 | void |
|
|
4172 | unpatch_pp_sselect () |
|
|
4173 | CODE: |
|
|
4174 | if (coro_old_pp_sselect) |
|
|
4175 | { |
|
|
4176 | PL_ppaddr [OP_SSELECT] = coro_old_pp_sselect; |
|
|
4177 | coro_old_pp_sselect = 0; |
|
|
4178 | } |
|
|
4179 | |