… | |
… | |
4 | #define PERL_EXT |
4 | #define PERL_EXT |
5 | |
5 | |
6 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
7 | #include "perl.h" |
7 | #include "perl.h" |
8 | #include "XSUB.h" |
8 | #include "XSUB.h" |
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9 | #include "perliol.h" |
9 | |
10 | |
10 | #include "patchlevel.h" |
11 | #include "patchlevel.h" |
11 | |
12 | |
12 | #include <stdio.h> |
13 | #include <stdio.h> |
13 | #include <errno.h> |
14 | #include <errno.h> |
14 | #include <assert.h> |
15 | #include <assert.h> |
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16 | |
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17 | #ifdef WIN32 |
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18 | # undef setjmp |
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19 | # undef longjmp |
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20 | # undef _exit |
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21 | # define setjmp _setjmp /* deep magic */ |
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22 | #else |
15 | #include <inttypes.h> /* portable stdint.h */ |
23 | # include <inttypes.h> /* most portable stdint.h */ |
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24 | #endif |
16 | |
25 | |
17 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
18 | # include <unistd.h> |
27 | # include <unistd.h> |
19 | # include <sys/mman.h> |
28 | # include <sys/mman.h> |
20 | # ifndef MAP_ANONYMOUS |
29 | # ifndef MAP_ANONYMOUS |
… | |
… | |
37 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
38 | #endif |
47 | #endif |
39 | |
48 | |
40 | #if CORO_USE_VALGRIND |
49 | #if CORO_USE_VALGRIND |
41 | # include <valgrind/valgrind.h> |
50 | # include <valgrind/valgrind.h> |
42 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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43 | #else |
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44 | # define REGISTER_STACK(cctx,start,end) |
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45 | #endif |
51 | #endif |
46 | |
52 | |
47 | /* the maximum number of idle cctx that will be pooled */ |
53 | /* the maximum number of idle cctx that will be pooled */ |
48 | #define MAX_IDLE_CCTX 8 |
54 | static int cctx_max_idle = 4; |
49 | |
55 | |
50 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
51 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
52 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
53 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
54 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
60 | || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c))))) |
55 | |
61 | |
56 | #if !PERL_VERSION_ATLEAST (5,6,0) |
62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
57 | # ifndef PL_ppaddr |
63 | # ifndef PL_ppaddr |
58 | # define PL_ppaddr ppaddr |
64 | # define PL_ppaddr ppaddr |
59 | # endif |
65 | # endif |
… | |
… | |
72 | # ifndef IS_PADCONST |
78 | # ifndef IS_PADCONST |
73 | # define IS_PADCONST(v) 0 |
79 | # define IS_PADCONST(v) 0 |
74 | # endif |
80 | # endif |
75 | #endif |
81 | #endif |
76 | |
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 | |
77 | /* 5.8.8 */ |
93 | /* 5.8.8 */ |
78 | #ifndef GV_NOTQUAL |
94 | #ifndef GV_NOTQUAL |
79 | # define GV_NOTQUAL 0 |
95 | # define GV_NOTQUAL 0 |
80 | #endif |
96 | #endif |
81 | #ifndef newSV |
97 | #ifndef newSV |
82 | # define newSV(l) NEWSV(0,l) |
98 | # define newSV(l) NEWSV(0,l) |
83 | #endif |
99 | #endif |
84 | |
100 | #ifndef CvISXSUB_on |
85 | /* 5.11 */ |
101 | # define CvISXSUB_on(cv) (void)cv |
86 | #ifndef CxHASARGS |
102 | #endif |
87 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
103 | #ifndef CvISXSUB |
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104 | # define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE) |
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105 | #endif |
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106 | #ifndef Newx |
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107 | # define Newx(ptr,nitems,type) New (0,ptr,nitems,type) |
88 | #endif |
108 | #endif |
89 | |
109 | |
90 | /* 5.8.7 */ |
110 | /* 5.8.7 */ |
91 | #ifndef SvRV_set |
111 | #ifndef SvRV_set |
92 | # define SvRV_set(s,v) SvRV(s) = (v) |
112 | # define SvRV_set(s,v) SvRV(s) = (v) |
… | |
… | |
105 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
125 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
106 | #endif |
126 | #endif |
107 | |
127 | |
108 | /* The next macros try to return the current stack pointer, in an as |
128 | /* The next macros try to return the current stack pointer, in an as |
109 | * portable way as possible. */ |
129 | * portable way as possible. */ |
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130 | #if __GNUC__ >= 4 |
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131 | # define dSTACKLEVEL int stacklevel_dummy |
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132 | # define STACKLEVEL __builtin_frame_address (0) |
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133 | #else |
110 | #define dSTACKLEVEL volatile char stacklevel |
134 | # define dSTACKLEVEL volatile void *stacklevel |
111 | #define STACKLEVEL ((void *)&stacklevel) |
135 | # define STACKLEVEL ((void *)&stacklevel) |
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136 | #endif |
112 | |
137 | |
113 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
138 | #define IN_DESTRUCT PL_dirty |
114 | |
139 | |
115 | #if __GNUC__ >= 3 |
140 | #if __GNUC__ >= 3 |
116 | # define attribute(x) __attribute__(x) |
141 | # define attribute(x) __attribute__(x) |
117 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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118 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
142 | # define expect(expr,value) __builtin_expect ((expr), (value)) |
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143 | # define INLINE static inline |
119 | #else |
144 | #else |
120 | # define attribute(x) |
145 | # define attribute(x) |
121 | # define BARRIER |
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122 | # define expect(expr,value) (expr) |
146 | # define expect(expr,value) (expr) |
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147 | # define INLINE static |
123 | #endif |
148 | #endif |
124 | |
149 | |
125 | #define expect_false(expr) expect ((expr) != 0, 0) |
150 | #define expect_false(expr) expect ((expr) != 0, 0) |
126 | #define expect_true(expr) expect ((expr) != 0, 1) |
151 | #define expect_true(expr) expect ((expr) != 0, 1) |
127 | |
152 | |
128 | #define NOINLINE attribute ((noinline)) |
153 | #define NOINLINE attribute ((noinline)) |
129 | |
154 | |
130 | #include "CoroAPI.h" |
155 | #include "CoroAPI.h" |
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156 | #define GCoroAPI (&coroapi) /* very sneaky */ |
131 | |
157 | |
132 | #ifdef USE_ITHREADS |
158 | #ifdef USE_ITHREADS |
133 | static perl_mutex coro_mutex; |
159 | # if CORO_PTHREAD |
134 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
160 | static void *coro_thx; |
135 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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136 | #else |
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137 | # define LOCK (void)0 |
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138 | # define UNLOCK (void)0 |
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139 | #endif |
161 | # endif |
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162 | #endif |
140 | |
163 | |
141 | /* helper storage struct for Coro::AIO */ |
164 | #ifdef __linux |
142 | struct io_state |
165 | # include <time.h> /* for timespec */ |
143 | { |
166 | # include <syscall.h> /* for SYS_* */ |
144 | int errorno; |
167 | # ifdef SYS_clock_gettime |
145 | I32 laststype; |
168 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
146 | int laststatval; |
169 | # define CORO_CLOCK_MONOTONIC 1 |
147 | Stat_t statcache; |
170 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
148 | }; |
171 | # endif |
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172 | #endif |
149 | |
173 | |
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174 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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175 | static void (*u2time)(pTHX_ UV ret[2]); |
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176 | |
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177 | /* we hijack an hopefully unused CV flag for our purposes */ |
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178 | #define CVf_SLF 0x4000 |
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179 | static OP *pp_slf (pTHX); |
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180 | |
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181 | static U32 cctx_gen; |
150 | static size_t coro_stacksize = CORO_STACKSIZE; |
182 | static size_t cctx_stacksize = CORO_STACKSIZE; |
151 | static struct CoroAPI coroapi; |
183 | static struct CoroAPI coroapi; |
152 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
184 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
153 | static JMPENV *main_top_env; |
185 | static JMPENV *main_top_env; |
154 | static HV *coro_state_stash, *coro_stash; |
186 | static HV *coro_state_stash, *coro_stash; |
155 | static volatile SV *coro_mortal; /* will be freed after next transfer */ |
187 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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188 | |
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189 | static AV *av_destroy; /* destruction queue */ |
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190 | static SV *sv_manager; /* the manager coro */ |
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191 | static SV *sv_idle; /* $Coro::idle */ |
156 | |
192 | |
157 | static GV *irsgv; /* $/ */ |
193 | static GV *irsgv; /* $/ */ |
158 | static GV *stdoutgv; /* *STDOUT */ |
194 | static GV *stdoutgv; /* *STDOUT */ |
159 | static SV *rv_diehook; |
195 | static SV *rv_diehook; |
160 | static SV *rv_warnhook; |
196 | static SV *rv_warnhook; |
161 | static HV *hv_sig; /* %SIG */ |
197 | static HV *hv_sig; /* %SIG */ |
162 | |
198 | |
163 | /* async_pool helper stuff */ |
199 | /* async_pool helper stuff */ |
164 | static SV *sv_pool_rss; |
200 | static SV *sv_pool_rss; |
165 | static SV *sv_pool_size; |
201 | static SV *sv_pool_size; |
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202 | static SV *sv_async_pool_idle; /* description string */ |
166 | static AV *av_async_pool; |
203 | static AV *av_async_pool; /* idle pool */ |
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204 | static SV *sv_Coro; /* class string */ |
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205 | static CV *cv_pool_handler; |
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206 | static CV *cv_coro_state_new; |
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207 | |
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208 | /* Coro::AnyEvent */ |
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209 | static SV *sv_activity; |
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210 | |
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211 | /* enable processtime/realtime profiling */ |
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212 | static char enable_times; |
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213 | typedef U32 coro_ts[2]; |
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214 | static coro_ts time_real, time_cpu; |
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215 | static char times_valid; |
167 | |
216 | |
168 | static struct coro_cctx *cctx_first; |
217 | static struct coro_cctx *cctx_first; |
169 | static int cctx_count, cctx_idle; |
218 | static int cctx_count, cctx_idle; |
170 | |
219 | |
171 | enum { |
220 | enum { |
… | |
… | |
176 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
225 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
177 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
226 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
178 | }; |
227 | }; |
179 | |
228 | |
180 | /* this is a structure representing a c-level coroutine */ |
229 | /* this is a structure representing a c-level coroutine */ |
181 | typedef struct coro_cctx { |
230 | typedef struct coro_cctx |
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231 | { |
182 | struct coro_cctx *next; |
232 | struct coro_cctx *next; |
183 | |
233 | |
184 | /* the stack */ |
234 | /* the stack */ |
185 | void *sptr; |
235 | void *sptr; |
186 | size_t ssize; |
236 | size_t ssize; |
… | |
… | |
189 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
239 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
190 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
240 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
191 | JMPENV *top_env; |
241 | JMPENV *top_env; |
192 | coro_context cctx; |
242 | coro_context cctx; |
193 | |
243 | |
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244 | U32 gen; |
194 | #if CORO_USE_VALGRIND |
245 | #if CORO_USE_VALGRIND |
195 | int valgrind_id; |
246 | int valgrind_id; |
196 | #endif |
247 | #endif |
197 | unsigned char flags; |
248 | unsigned char flags; |
198 | } coro_cctx; |
249 | } coro_cctx; |
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250 | |
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251 | coro_cctx *cctx_current; /* the currently running cctx */ |
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252 | |
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253 | /*****************************************************************************/ |
199 | |
254 | |
200 | enum { |
255 | enum { |
201 | CF_RUNNING = 0x0001, /* coroutine is running */ |
256 | CF_RUNNING = 0x0001, /* coroutine is running */ |
202 | CF_READY = 0x0002, /* coroutine is ready */ |
257 | CF_READY = 0x0002, /* coroutine is ready */ |
203 | CF_NEW = 0x0004, /* has never been switched to */ |
258 | CF_NEW = 0x0004, /* has never been switched to */ |
204 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
259 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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260 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
205 | }; |
261 | }; |
206 | |
262 | |
207 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
263 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
208 | typedef struct { |
264 | typedef struct |
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265 | { |
209 | SV *defsv; |
266 | SV *defsv; |
210 | AV *defav; |
267 | AV *defav; |
211 | SV *errsv; |
268 | SV *errsv; |
212 | SV *irsgv; |
269 | SV *irsgv; |
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270 | HV *hinthv; |
213 | #define VAR(name,type) type name; |
271 | #define VAR(name,type) type name; |
214 | # include "state.h" |
272 | # include "state.h" |
215 | #undef VAR |
273 | #undef VAR |
216 | } perl_slots; |
274 | } perl_slots; |
217 | |
275 | |
218 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
276 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
219 | |
277 | |
220 | /* this is a structure representing a perl-level coroutine */ |
278 | /* this is a structure representing a perl-level coroutine */ |
221 | struct coro { |
279 | struct coro { |
222 | /* the c coroutine allocated to this perl coroutine, if any */ |
280 | /* the C coroutine allocated to this perl coroutine, if any */ |
223 | coro_cctx *cctx; |
281 | coro_cctx *cctx; |
224 | |
282 | |
225 | /* process data */ |
283 | /* ready queue */ |
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284 | struct coro *next_ready; |
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285 | |
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286 | /* state data */ |
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287 | struct CoroSLF slf_frame; /* saved slf frame */ |
226 | AV *mainstack; |
288 | AV *mainstack; |
227 | perl_slots *slot; /* basically the saved sp */ |
289 | perl_slots *slot; /* basically the saved sp */ |
228 | |
290 | |
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291 | CV *startcv; /* the CV to execute */ |
229 | AV *args; /* data associated with this coroutine (initial args) */ |
292 | AV *args; /* data associated with this coroutine (initial args) */ |
230 | int refcnt; /* coroutines are refcounted, yes */ |
293 | int refcnt; /* coroutines are refcounted, yes */ |
231 | int flags; /* CF_ flags */ |
294 | int flags; /* CF_ flags */ |
232 | HV *hv; /* the perl hash associated with this coro, if any */ |
295 | HV *hv; /* the perl hash associated with this coro, if any */ |
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296 | void (*on_destroy)(pTHX_ struct coro *coro); |
233 | |
297 | |
234 | /* statistics */ |
298 | /* statistics */ |
235 | int usecount; /* number of transfers to this coro */ |
299 | int usecount; /* number of transfers to this coro */ |
236 | |
300 | |
237 | /* coro process data */ |
301 | /* coro process data */ |
238 | int prio; |
302 | int prio; |
239 | SV *throw; /* exception to be thrown */ |
303 | SV *except; /* exception to be thrown */ |
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304 | SV *rouse_cb; |
240 | |
305 | |
241 | /* async_pool */ |
306 | /* async_pool */ |
242 | SV *saved_deffh; |
307 | SV *saved_deffh; |
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308 | SV *invoke_cb; |
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309 | AV *invoke_av; |
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310 | |
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311 | /* on_enter/on_leave */ |
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312 | AV *on_enter; |
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313 | AV *on_leave; |
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314 | |
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315 | /* times */ |
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316 | coro_ts t_cpu, t_real; |
243 | |
317 | |
244 | /* linked list */ |
318 | /* linked list */ |
245 | struct coro *next, *prev; |
319 | struct coro *next, *prev; |
246 | }; |
320 | }; |
247 | |
321 | |
248 | typedef struct coro *Coro__State; |
322 | typedef struct coro *Coro__State; |
249 | typedef struct coro *Coro__State_or_hashref; |
323 | typedef struct coro *Coro__State_or_hashref; |
250 | |
324 | |
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325 | /* the following variables are effectively part of the perl context */ |
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326 | /* and get copied between struct coro and these variables */ |
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327 | /* the mainr easonw e don't support windows process emulation */ |
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328 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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329 | |
251 | /** Coro ********************************************************************/ |
330 | /** Coro ********************************************************************/ |
252 | |
331 | |
253 | #define PRIO_MAX 3 |
332 | #define CORO_PRIO_MAX 3 |
254 | #define PRIO_HIGH 1 |
333 | #define CORO_PRIO_HIGH 1 |
255 | #define PRIO_NORMAL 0 |
334 | #define CORO_PRIO_NORMAL 0 |
256 | #define PRIO_LOW -1 |
335 | #define CORO_PRIO_LOW -1 |
257 | #define PRIO_IDLE -3 |
336 | #define CORO_PRIO_IDLE -3 |
258 | #define PRIO_MIN -4 |
337 | #define CORO_PRIO_MIN -4 |
259 | |
338 | |
260 | /* for Coro.pm */ |
339 | /* for Coro.pm */ |
261 | static SV *coro_current; |
340 | static SV *coro_current; |
262 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
341 | static SV *coro_readyhook; |
263 | static int coro_nready; |
342 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
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343 | static CV *cv_coro_run, *cv_coro_terminate; |
264 | static struct coro *coro_first; |
344 | static struct coro *coro_first; |
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345 | #define coro_nready coroapi.nready |
265 | |
346 | |
266 | /** lowlevel stuff **********************************************************/ |
347 | /** lowlevel stuff **********************************************************/ |
267 | |
348 | |
268 | static SV * |
349 | static SV * |
269 | coro_get_sv (pTHX_ const char *name, int create) |
350 | coro_get_sv (pTHX_ const char *name, int create) |
270 | { |
351 | { |
271 | #if PERL_VERSION_ATLEAST (5,9,0) |
352 | #if PERL_VERSION_ATLEAST (5,10,0) |
272 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
353 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
273 | get_sv (name, create); |
354 | get_sv (name, create); |
274 | #endif |
355 | #endif |
275 | return get_sv (name, create); |
356 | return get_sv (name, create); |
276 | } |
357 | } |
277 | |
358 | |
278 | static AV * |
359 | static AV * |
279 | coro_get_av (pTHX_ const char *name, int create) |
360 | coro_get_av (pTHX_ const char *name, int create) |
280 | { |
361 | { |
281 | #if PERL_VERSION_ATLEAST (5,9,0) |
362 | #if PERL_VERSION_ATLEAST (5,10,0) |
282 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
363 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
283 | get_av (name, create); |
364 | get_av (name, create); |
284 | #endif |
365 | #endif |
285 | return get_av (name, create); |
366 | return get_av (name, create); |
286 | } |
367 | } |
287 | |
368 | |
288 | static HV * |
369 | static HV * |
289 | coro_get_hv (pTHX_ const char *name, int create) |
370 | coro_get_hv (pTHX_ const char *name, int create) |
290 | { |
371 | { |
291 | #if PERL_VERSION_ATLEAST (5,9,0) |
372 | #if PERL_VERSION_ATLEAST (5,10,0) |
292 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
373 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
293 | get_hv (name, create); |
374 | get_hv (name, create); |
294 | #endif |
375 | #endif |
295 | return get_hv (name, create); |
376 | return get_hv (name, create); |
296 | } |
377 | } |
297 | |
378 | |
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379 | /* may croak */ |
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380 | INLINE CV * |
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381 | coro_sv_2cv (pTHX_ SV *sv) |
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382 | { |
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383 | HV *st; |
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384 | GV *gvp; |
|
|
385 | CV *cv = sv_2cv (sv, &st, &gvp, 0); |
|
|
386 | |
|
|
387 | if (!cv) |
|
|
388 | croak ("code reference expected"); |
|
|
389 | |
|
|
390 | return cv; |
|
|
391 | } |
|
|
392 | |
|
|
393 | INLINE void |
|
|
394 | coro_times_update () |
|
|
395 | { |
|
|
396 | #ifdef coro_clock_gettime |
|
|
397 | struct timespec ts; |
|
|
398 | |
|
|
399 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
400 | coro_clock_gettime (CORO_CLOCK_THREAD_CPUTIME_ID, &ts); |
|
|
401 | time_cpu [0] = ts.tv_sec; time_cpu [1] = ts.tv_nsec; |
|
|
402 | |
|
|
403 | ts.tv_sec = ts.tv_nsec = 0; |
|
|
404 | coro_clock_gettime (CORO_CLOCK_MONOTONIC, &ts); |
|
|
405 | time_real [0] = ts.tv_sec; time_real [1] = ts.tv_nsec; |
|
|
406 | #else |
|
|
407 | dTHX; |
|
|
408 | UV tv[2]; |
|
|
409 | |
|
|
410 | u2time (aTHX_ tv); |
|
|
411 | time_real [0] = tv [0]; |
|
|
412 | time_real [1] = tv [1] * 1000; |
|
|
413 | #endif |
|
|
414 | } |
|
|
415 | |
|
|
416 | INLINE void |
|
|
417 | coro_times_add (struct coro *c) |
|
|
418 | { |
|
|
419 | c->t_real [1] += time_real [1]; |
|
|
420 | if (c->t_real [1] > 1000000000) { c->t_real [1] -= 1000000000; ++c->t_real [0]; } |
|
|
421 | c->t_real [0] += time_real [0]; |
|
|
422 | |
|
|
423 | c->t_cpu [1] += time_cpu [1]; |
|
|
424 | if (c->t_cpu [1] > 1000000000) { c->t_cpu [1] -= 1000000000; ++c->t_cpu [0]; } |
|
|
425 | c->t_cpu [0] += time_cpu [0]; |
|
|
426 | } |
|
|
427 | |
|
|
428 | INLINE void |
|
|
429 | coro_times_sub (struct coro *c) |
|
|
430 | { |
|
|
431 | if (c->t_real [1] < time_real [1]) { c->t_real [1] += 1000000000; --c->t_real [0]; } |
|
|
432 | c->t_real [1] -= time_real [1]; |
|
|
433 | c->t_real [0] -= time_real [0]; |
|
|
434 | |
|
|
435 | if (c->t_cpu [1] < time_cpu [1]) { c->t_cpu [1] += 1000000000; --c->t_cpu [0]; } |
|
|
436 | c->t_cpu [1] -= time_cpu [1]; |
|
|
437 | c->t_cpu [0] -= time_cpu [0]; |
|
|
438 | } |
|
|
439 | |
|
|
440 | /*****************************************************************************/ |
|
|
441 | /* magic glue */ |
|
|
442 | |
|
|
443 | #define CORO_MAGIC_type_cv 26 |
|
|
444 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
445 | |
|
|
446 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
447 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
448 | ? SvMAGIC (sv) \ |
|
|
449 | : mg_find (sv, type)) |
|
|
450 | |
|
|
451 | #define CORO_MAGIC(sv, type) \ |
|
|
452 | (expect_true (SvMAGIC (sv)) \ |
|
|
453 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
454 | : 0) |
|
|
455 | |
|
|
456 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
457 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
458 | |
|
|
459 | INLINE struct coro * |
|
|
460 | SvSTATE_ (pTHX_ SV *coro) |
|
|
461 | { |
|
|
462 | HV *stash; |
|
|
463 | MAGIC *mg; |
|
|
464 | |
|
|
465 | if (SvROK (coro)) |
|
|
466 | coro = SvRV (coro); |
|
|
467 | |
|
|
468 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
469 | croak ("Coro::State object required"); |
|
|
470 | |
|
|
471 | stash = SvSTASH (coro); |
|
|
472 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
473 | { |
|
|
474 | /* very slow, but rare, check */ |
|
|
475 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
476 | croak ("Coro::State object required"); |
|
|
477 | } |
|
|
478 | |
|
|
479 | mg = CORO_MAGIC_state (coro); |
|
|
480 | return (struct coro *)mg->mg_ptr; |
|
|
481 | } |
|
|
482 | |
|
|
483 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
484 | |
|
|
485 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
486 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
487 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
488 | |
|
|
489 | /*****************************************************************************/ |
|
|
490 | /* padlist management and caching */ |
|
|
491 | |
298 | static AV * |
492 | static AV * |
299 | coro_clone_padlist (pTHX_ CV *cv) |
493 | coro_derive_padlist (pTHX_ CV *cv) |
300 | { |
494 | { |
301 | AV *padlist = CvPADLIST (cv); |
495 | AV *padlist = CvPADLIST (cv); |
302 | AV *newpadlist, *newpad; |
496 | AV *newpadlist, *newpad; |
303 | |
497 | |
304 | newpadlist = newAV (); |
498 | newpadlist = newAV (); |
305 | AvREAL_off (newpadlist); |
499 | AvREAL_off (newpadlist); |
306 | #if PERL_VERSION_ATLEAST (5,9,0) |
500 | #if PERL_VERSION_ATLEAST (5,10,0) |
307 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
501 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
308 | #else |
502 | #else |
309 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
503 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
310 | #endif |
504 | #endif |
311 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
505 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
312 | --AvFILLp (padlist); |
506 | --AvFILLp (padlist); |
313 | |
507 | |
314 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
508 | av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); |
315 | av_store (newpadlist, 1, (SV *)newpad); |
509 | av_store (newpadlist, 1, (SV *)newpad); |
316 | |
510 | |
317 | return newpadlist; |
511 | return newpadlist; |
318 | } |
512 | } |
319 | |
513 | |
320 | static void |
514 | static void |
321 | free_padlist (pTHX_ AV *padlist) |
515 | free_padlist (pTHX_ AV *padlist) |
322 | { |
516 | { |
323 | /* may be during global destruction */ |
517 | /* may be during global destruction */ |
324 | if (SvREFCNT (padlist)) |
518 | if (!IN_DESTRUCT) |
325 | { |
519 | { |
326 | I32 i = AvFILLp (padlist); |
520 | I32 i = AvFILLp (padlist); |
327 | while (i >= 0) |
521 | |
|
|
522 | while (i > 0) /* special-case index 0 */ |
328 | { |
523 | { |
329 | SV **svp = av_fetch (padlist, i--, FALSE); |
524 | /* we try to be extra-careful here */ |
330 | if (svp) |
525 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
331 | { |
526 | I32 j = AvFILLp (av); |
332 | SV *sv; |
527 | |
333 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
528 | while (j >= 0) |
|
|
529 | SvREFCNT_dec (AvARRAY (av)[j--]); |
|
|
530 | |
|
|
531 | AvFILLp (av) = -1; |
334 | SvREFCNT_dec (sv); |
532 | SvREFCNT_dec (av); |
335 | |
|
|
336 | SvREFCNT_dec (*svp); |
|
|
337 | } |
|
|
338 | } |
533 | } |
339 | |
534 | |
|
|
535 | SvREFCNT_dec (AvARRAY (padlist)[0]); |
|
|
536 | |
|
|
537 | AvFILLp (padlist) = -1; |
340 | SvREFCNT_dec ((SV*)padlist); |
538 | SvREFCNT_dec ((SV*)padlist); |
341 | } |
539 | } |
342 | } |
540 | } |
343 | |
541 | |
344 | static int |
542 | static int |
345 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
543 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
346 | { |
544 | { |
347 | AV *padlist; |
545 | AV *padlist; |
348 | AV *av = (AV *)mg->mg_obj; |
546 | AV *av = (AV *)mg->mg_obj; |
|
|
547 | |
|
|
548 | /* perl manages to free our internal AV and _then_ call us */ |
|
|
549 | if (IN_DESTRUCT) |
|
|
550 | return 0; |
349 | |
551 | |
350 | /* casting is fun. */ |
552 | /* casting is fun. */ |
351 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
553 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
352 | free_padlist (aTHX_ padlist); |
554 | free_padlist (aTHX_ padlist); |
353 | |
555 | |
|
|
556 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
|
|
557 | |
354 | return 0; |
558 | return 0; |
355 | } |
559 | } |
356 | |
|
|
357 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
358 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
359 | |
560 | |
360 | static MGVTBL coro_cv_vtbl = { |
561 | static MGVTBL coro_cv_vtbl = { |
361 | 0, 0, 0, 0, |
562 | 0, 0, 0, 0, |
362 | coro_cv_free |
563 | coro_cv_free |
363 | }; |
564 | }; |
364 | |
|
|
365 | #define CORO_MAGIC(sv,type) \ |
|
|
366 | SvMAGIC (sv) \ |
|
|
367 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
368 | ? SvMAGIC (sv) \ |
|
|
369 | : mg_find (sv, type) \ |
|
|
370 | : 0 |
|
|
371 | |
|
|
372 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
373 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
374 | |
|
|
375 | static struct coro * |
|
|
376 | SvSTATE_ (pTHX_ SV *coro) |
|
|
377 | { |
|
|
378 | HV *stash; |
|
|
379 | MAGIC *mg; |
|
|
380 | |
|
|
381 | if (SvROK (coro)) |
|
|
382 | coro = SvRV (coro); |
|
|
383 | |
|
|
384 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
385 | croak ("Coro::State object required"); |
|
|
386 | |
|
|
387 | stash = SvSTASH (coro); |
|
|
388 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
389 | { |
|
|
390 | /* very slow, but rare, check */ |
|
|
391 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
392 | croak ("Coro::State object required"); |
|
|
393 | } |
|
|
394 | |
|
|
395 | mg = CORO_MAGIC_state (coro); |
|
|
396 | return (struct coro *)mg->mg_ptr; |
|
|
397 | } |
|
|
398 | |
|
|
399 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
400 | |
565 | |
401 | /* the next two functions merely cache the padlists */ |
566 | /* the next two functions merely cache the padlists */ |
402 | static void |
567 | static void |
403 | get_padlist (pTHX_ CV *cv) |
568 | get_padlist (pTHX_ CV *cv) |
404 | { |
569 | { |
… | |
… | |
408 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
573 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
409 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
574 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
410 | else |
575 | else |
411 | { |
576 | { |
412 | #if CORO_PREFER_PERL_FUNCTIONS |
577 | #if CORO_PREFER_PERL_FUNCTIONS |
413 | /* this is probably cleaner, but also slower? */ |
578 | /* this is probably cleaner? but also slower! */ |
|
|
579 | /* in practise, it seems to be less stable */ |
414 | CV *cp = Perl_cv_clone (cv); |
580 | CV *cp = Perl_cv_clone (aTHX_ cv); |
415 | CvPADLIST (cv) = CvPADLIST (cp); |
581 | CvPADLIST (cv) = CvPADLIST (cp); |
416 | CvPADLIST (cp) = 0; |
582 | CvPADLIST (cp) = 0; |
417 | SvREFCNT_dec (cp); |
583 | SvREFCNT_dec (cp); |
418 | #else |
584 | #else |
419 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
585 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
420 | #endif |
586 | #endif |
421 | } |
587 | } |
422 | } |
588 | } |
423 | |
589 | |
424 | static void |
590 | static void |
… | |
… | |
431 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
597 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
432 | |
598 | |
433 | av = (AV *)mg->mg_obj; |
599 | av = (AV *)mg->mg_obj; |
434 | |
600 | |
435 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
601 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
436 | av_extend (av, AvMAX (av) + 1); |
602 | av_extend (av, AvFILLp (av) + 1); |
437 | |
603 | |
438 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
604 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
439 | } |
605 | } |
440 | |
606 | |
441 | /** load & save, init *******************************************************/ |
607 | /** load & save, init *******************************************************/ |
|
|
608 | |
|
|
609 | static void |
|
|
610 | on_enterleave_call (pTHX_ SV *cb); |
442 | |
611 | |
443 | static void |
612 | static void |
444 | load_perl (pTHX_ Coro__State c) |
613 | load_perl (pTHX_ Coro__State c) |
445 | { |
614 | { |
446 | perl_slots *slot = c->slot; |
615 | perl_slots *slot = c->slot; |
447 | c->slot = 0; |
616 | c->slot = 0; |
448 | |
617 | |
449 | PL_mainstack = c->mainstack; |
618 | PL_mainstack = c->mainstack; |
450 | |
619 | |
451 | GvSV (PL_defgv) = slot->defsv; |
620 | GvSV (PL_defgv) = slot->defsv; |
452 | GvAV (PL_defgv) = slot->defav; |
621 | GvAV (PL_defgv) = slot->defav; |
453 | GvSV (PL_errgv) = slot->errsv; |
622 | GvSV (PL_errgv) = slot->errsv; |
454 | GvSV (irsgv) = slot->irsgv; |
623 | GvSV (irsgv) = slot->irsgv; |
|
|
624 | GvHV (PL_hintgv) = slot->hinthv; |
455 | |
625 | |
456 | #define VAR(name,type) PL_ ## name = slot->name; |
626 | #define VAR(name,type) PL_ ## name = slot->name; |
457 | # include "state.h" |
627 | # include "state.h" |
458 | #undef VAR |
628 | #undef VAR |
459 | |
629 | |
… | |
… | |
470 | CvPADLIST (cv) = (AV *)POPs; |
640 | CvPADLIST (cv) = (AV *)POPs; |
471 | } |
641 | } |
472 | |
642 | |
473 | PUTBACK; |
643 | PUTBACK; |
474 | } |
644 | } |
|
|
645 | |
|
|
646 | slf_frame = c->slf_frame; |
|
|
647 | CORO_THROW = c->except; |
|
|
648 | |
|
|
649 | if (expect_false (enable_times)) |
|
|
650 | { |
|
|
651 | if (expect_false (!times_valid)) |
|
|
652 | coro_times_update (); |
|
|
653 | |
|
|
654 | coro_times_sub (c); |
|
|
655 | } |
|
|
656 | |
|
|
657 | if (expect_false (c->on_enter)) |
|
|
658 | { |
|
|
659 | int i; |
|
|
660 | |
|
|
661 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
662 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
663 | } |
475 | } |
664 | } |
476 | |
665 | |
477 | static void |
666 | static void |
478 | save_perl (pTHX_ Coro__State c) |
667 | save_perl (pTHX_ Coro__State c) |
479 | { |
668 | { |
|
|
669 | if (expect_false (c->on_leave)) |
|
|
670 | { |
|
|
671 | int i; |
|
|
672 | |
|
|
673 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
674 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
675 | } |
|
|
676 | |
|
|
677 | times_valid = 0; |
|
|
678 | |
|
|
679 | if (expect_false (enable_times)) |
|
|
680 | { |
|
|
681 | coro_times_update (); times_valid = 1; |
|
|
682 | coro_times_add (c); |
|
|
683 | } |
|
|
684 | |
|
|
685 | c->except = CORO_THROW; |
|
|
686 | c->slf_frame = slf_frame; |
|
|
687 | |
480 | { |
688 | { |
481 | dSP; |
689 | dSP; |
482 | I32 cxix = cxstack_ix; |
690 | I32 cxix = cxstack_ix; |
483 | PERL_CONTEXT *ccstk = cxstack; |
691 | PERL_CONTEXT *ccstk = cxstack; |
484 | PERL_SI *top_si = PL_curstackinfo; |
692 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
494 | { |
702 | { |
495 | while (expect_true (cxix >= 0)) |
703 | while (expect_true (cxix >= 0)) |
496 | { |
704 | { |
497 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
705 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
498 | |
706 | |
499 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
707 | if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) |
500 | { |
708 | { |
501 | CV *cv = cx->blk_sub.cv; |
709 | CV *cv = cx->blk_sub.cv; |
502 | |
710 | |
503 | if (expect_true (CvDEPTH (cv))) |
711 | if (expect_true (CvDEPTH (cv))) |
504 | { |
712 | { |
505 | EXTEND (SP, 3); |
713 | EXTEND (SP, 3); |
506 | PUSHs ((SV *)CvPADLIST (cv)); |
714 | PUSHs ((SV *)CvPADLIST (cv)); |
507 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
715 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
508 | PUSHs ((SV *)cv); |
716 | PUSHs ((SV *)cv); |
509 | |
717 | |
510 | CvDEPTH (cv) = 0; |
718 | CvDEPTH (cv) = 0; |
511 | get_padlist (aTHX_ cv); |
719 | get_padlist (aTHX_ cv); |
512 | } |
720 | } |
… | |
… | |
528 | /* we manually unroll here, as usually 2 slots is enough */ |
736 | /* we manually unroll here, as usually 2 slots is enough */ |
529 | if (SLOT_COUNT >= 1) CXINC; |
737 | if (SLOT_COUNT >= 1) CXINC; |
530 | if (SLOT_COUNT >= 2) CXINC; |
738 | if (SLOT_COUNT >= 2) CXINC; |
531 | if (SLOT_COUNT >= 3) CXINC; |
739 | if (SLOT_COUNT >= 3) CXINC; |
532 | { |
740 | { |
533 | int i; |
741 | unsigned int i; |
534 | for (i = 3; i < SLOT_COUNT; ++i) |
742 | for (i = 3; i < SLOT_COUNT; ++i) |
535 | CXINC; |
743 | CXINC; |
536 | } |
744 | } |
537 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
745 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
538 | |
746 | |
539 | c->mainstack = PL_mainstack; |
747 | c->mainstack = PL_mainstack; |
540 | |
748 | |
541 | { |
749 | { |
542 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
750 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
543 | |
751 | |
544 | slot->defav = GvAV (PL_defgv); |
752 | slot->defav = GvAV (PL_defgv); |
545 | slot->defsv = DEFSV; |
753 | slot->defsv = DEFSV; |
546 | slot->errsv = ERRSV; |
754 | slot->errsv = ERRSV; |
547 | slot->irsgv = GvSV (irsgv); |
755 | slot->irsgv = GvSV (irsgv); |
|
|
756 | slot->hinthv = GvHV (PL_hintgv); |
548 | |
757 | |
549 | #define VAR(name,type) slot->name = PL_ ## name; |
758 | #define VAR(name,type) slot->name = PL_ ## name; |
550 | # include "state.h" |
759 | # include "state.h" |
551 | #undef VAR |
760 | #undef VAR |
552 | } |
761 | } |
553 | } |
762 | } |
554 | |
763 | |
555 | /* |
764 | /* |
556 | * allocate various perl stacks. This is an exact copy |
765 | * allocate various perl stacks. This is almost an exact copy |
557 | * of perl.c:init_stacks, except that it uses less memory |
766 | * of perl.c:init_stacks, except that it uses less memory |
558 | * on the (sometimes correct) assumption that coroutines do |
767 | * on the (sometimes correct) assumption that coroutines do |
559 | * not usually need a lot of stackspace. |
768 | * not usually need a lot of stackspace. |
560 | */ |
769 | */ |
561 | #if CORO_PREFER_PERL_FUNCTIONS |
770 | #if CORO_PREFER_PERL_FUNCTIONS |
562 | # define coro_init_stacks init_stacks |
771 | # define coro_init_stacks(thx) init_stacks () |
563 | #else |
772 | #else |
564 | static void |
773 | static void |
565 | coro_init_stacks (pTHX) |
774 | coro_init_stacks (pTHX) |
566 | { |
775 | { |
567 | PL_curstackinfo = new_stackinfo(32, 8); |
776 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
592 | |
801 | |
593 | New(54,PL_savestack,24,ANY); |
802 | New(54,PL_savestack,24,ANY); |
594 | PL_savestack_ix = 0; |
803 | PL_savestack_ix = 0; |
595 | PL_savestack_max = 24; |
804 | PL_savestack_max = 24; |
596 | |
805 | |
597 | #if !PERL_VERSION_ATLEAST (5,9,0) |
806 | #if !PERL_VERSION_ATLEAST (5,10,0) |
598 | New(54,PL_retstack,4,OP*); |
807 | New(54,PL_retstack,4,OP*); |
599 | PL_retstack_ix = 0; |
808 | PL_retstack_ix = 0; |
600 | PL_retstack_max = 4; |
809 | PL_retstack_max = 4; |
601 | #endif |
810 | #endif |
602 | } |
811 | } |
… | |
… | |
604 | |
813 | |
605 | /* |
814 | /* |
606 | * destroy the stacks, the callchain etc... |
815 | * destroy the stacks, the callchain etc... |
607 | */ |
816 | */ |
608 | static void |
817 | static void |
609 | coro_destroy_stacks (pTHX) |
818 | coro_destruct_stacks (pTHX) |
610 | { |
819 | { |
611 | while (PL_curstackinfo->si_next) |
820 | while (PL_curstackinfo->si_next) |
612 | PL_curstackinfo = PL_curstackinfo->si_next; |
821 | PL_curstackinfo = PL_curstackinfo->si_next; |
613 | |
822 | |
614 | while (PL_curstackinfo) |
823 | while (PL_curstackinfo) |
… | |
… | |
625 | |
834 | |
626 | Safefree (PL_tmps_stack); |
835 | Safefree (PL_tmps_stack); |
627 | Safefree (PL_markstack); |
836 | Safefree (PL_markstack); |
628 | Safefree (PL_scopestack); |
837 | Safefree (PL_scopestack); |
629 | Safefree (PL_savestack); |
838 | Safefree (PL_savestack); |
630 | #if !PERL_VERSION_ATLEAST (5,9,0) |
839 | #if !PERL_VERSION_ATLEAST (5,10,0) |
631 | Safefree (PL_retstack); |
840 | Safefree (PL_retstack); |
632 | #endif |
841 | #endif |
633 | } |
842 | } |
|
|
843 | |
|
|
844 | #define CORO_RSS \ |
|
|
845 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
846 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
847 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
848 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
849 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
850 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
851 | rss += SYM (savestack_max) * sizeof (ANY); |
634 | |
852 | |
635 | static size_t |
853 | static size_t |
636 | coro_rss (pTHX_ struct coro *coro) |
854 | coro_rss (pTHX_ struct coro *coro) |
637 | { |
855 | { |
638 | size_t rss = sizeof (*coro); |
856 | size_t rss = sizeof (*coro); |
639 | |
857 | |
640 | if (coro->mainstack) |
858 | if (coro->mainstack) |
641 | { |
859 | { |
642 | perl_slots tmp_slot; |
|
|
643 | perl_slots *slot; |
|
|
644 | |
|
|
645 | if (coro->flags & CF_RUNNING) |
860 | if (coro->flags & CF_RUNNING) |
646 | { |
861 | { |
647 | slot = &tmp_slot; |
862 | #define SYM(sym) PL_ ## sym |
648 | |
863 | CORO_RSS; |
649 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
650 | # include "state.h" |
|
|
651 | #undef VAR |
864 | #undef SYM |
652 | } |
865 | } |
653 | else |
866 | else |
654 | slot = coro->slot; |
867 | { |
655 | |
868 | #define SYM(sym) coro->slot->sym |
656 | rss += sizeof (slot->curstackinfo); |
869 | CORO_RSS; |
657 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
870 | #undef SYM |
658 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
871 | } |
659 | rss += slot->tmps_max * sizeof (SV *); |
|
|
660 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
661 | rss += slot->scopestack_max * sizeof (I32); |
|
|
662 | rss += slot->savestack_max * sizeof (ANY); |
|
|
663 | |
|
|
664 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
665 | rss += slot->retstack_max * sizeof (OP *); |
|
|
666 | #endif |
|
|
667 | } |
872 | } |
668 | |
873 | |
669 | return rss; |
874 | return rss; |
670 | } |
875 | } |
671 | |
876 | |
672 | /** coroutine stack handling ************************************************/ |
877 | /** coroutine stack handling ************************************************/ |
673 | |
878 | |
674 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
879 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
675 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
880 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
881 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
882 | |
|
|
883 | /* apparently < 5.8.8 */ |
|
|
884 | #ifndef MgPV_nolen_const |
|
|
885 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
886 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
887 | (const char*)(mg)->mg_ptr) |
|
|
888 | #endif |
676 | |
889 | |
677 | /* |
890 | /* |
678 | * This overrides the default magic get method of %SIG elements. |
891 | * This overrides the default magic get method of %SIG elements. |
679 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
892 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
680 | * and instead of tryign to save and restore the hash elements, we just provide |
893 | * and instead of trying to save and restore the hash elements, we just provide |
681 | * readback here. |
894 | * readback here. |
682 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
683 | * not expecting this to actually change the hook. This is a potential problem |
|
|
684 | * when a schedule happens then, but we ignore this. |
|
|
685 | */ |
895 | */ |
686 | static int |
896 | static int |
687 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
897 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
688 | { |
898 | { |
689 | const char *s = MgPV_nolen_const (mg); |
899 | const char *s = MgPV_nolen_const (mg); |
690 | |
900 | |
691 | if (*s == '_') |
901 | if (*s == '_') |
692 | { |
902 | { |
693 | if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0; |
903 | SV **svp = 0; |
694 | if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0; |
904 | |
|
|
905 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
906 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
907 | |
|
|
908 | if (svp) |
|
|
909 | { |
|
|
910 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
911 | return 0; |
|
|
912 | } |
695 | } |
913 | } |
696 | |
914 | |
697 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
915 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
698 | } |
916 | } |
699 | |
917 | |
700 | static int |
918 | static int |
701 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
919 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
702 | { |
920 | { |
703 | const char *s = MgPV_nolen_const (mg); |
921 | const char *s = MgPV_nolen_const (mg); |
704 | |
922 | |
705 | if (*s == '_') |
923 | if (*s == '_') |
706 | { |
924 | { |
… | |
… | |
710 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
928 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
711 | |
929 | |
712 | if (svp) |
930 | if (svp) |
713 | { |
931 | { |
714 | SV *old = *svp; |
932 | SV *old = *svp; |
715 | *svp = newSVsv (sv); |
933 | *svp = 0; |
716 | SvREFCNT_dec (old); |
934 | SvREFCNT_dec (old); |
717 | return; |
935 | return 0; |
718 | } |
936 | } |
719 | } |
937 | } |
720 | |
938 | |
|
|
939 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
940 | } |
|
|
941 | |
|
|
942 | static int |
|
|
943 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
944 | { |
|
|
945 | const char *s = MgPV_nolen_const (mg); |
|
|
946 | |
|
|
947 | if (*s == '_') |
|
|
948 | { |
|
|
949 | SV **svp = 0; |
|
|
950 | |
|
|
951 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
952 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
953 | |
|
|
954 | if (svp) |
|
|
955 | { |
|
|
956 | SV *old = *svp; |
|
|
957 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
|
|
958 | SvREFCNT_dec (old); |
|
|
959 | return 0; |
|
|
960 | } |
|
|
961 | } |
|
|
962 | |
721 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
963 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
722 | } |
964 | } |
723 | |
965 | |
724 | static void |
966 | static void |
|
|
967 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
968 | { |
|
|
969 | /* kind of mega-hacky, but works */ |
|
|
970 | ta->next = ta->prev = (struct coro *)ta; |
|
|
971 | } |
|
|
972 | |
|
|
973 | static int |
|
|
974 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
975 | { |
|
|
976 | return 0; |
|
|
977 | } |
|
|
978 | |
|
|
979 | static int |
|
|
980 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
981 | { |
|
|
982 | return 1; |
|
|
983 | } |
|
|
984 | |
|
|
985 | static UNOP coro_setup_op; |
|
|
986 | |
|
|
987 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
725 | coro_setup (pTHX_ struct coro *coro) |
988 | coro_setup (pTHX_ struct coro *coro) |
726 | { |
989 | { |
727 | /* |
990 | /* |
728 | * emulate part of the perl startup here. |
991 | * emulate part of the perl startup here. |
729 | */ |
992 | */ |
… | |
… | |
731 | |
994 | |
732 | PL_runops = RUNOPS_DEFAULT; |
995 | PL_runops = RUNOPS_DEFAULT; |
733 | PL_curcop = &PL_compiling; |
996 | PL_curcop = &PL_compiling; |
734 | PL_in_eval = EVAL_NULL; |
997 | PL_in_eval = EVAL_NULL; |
735 | PL_comppad = 0; |
998 | PL_comppad = 0; |
|
|
999 | PL_comppad_name = 0; |
|
|
1000 | PL_comppad_name_fill = 0; |
|
|
1001 | PL_comppad_name_floor = 0; |
736 | PL_curpm = 0; |
1002 | PL_curpm = 0; |
737 | PL_curpad = 0; |
1003 | PL_curpad = 0; |
738 | PL_localizing = 0; |
1004 | PL_localizing = 0; |
739 | PL_dirty = 0; |
1005 | PL_dirty = 0; |
740 | PL_restartop = 0; |
1006 | PL_restartop = 0; |
|
|
1007 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
1008 | PL_parser = 0; |
|
|
1009 | #endif |
|
|
1010 | PL_hints = 0; |
741 | |
1011 | |
742 | /* recreate the die/warn hooks */ |
1012 | /* recreate the die/warn hooks */ |
743 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
1013 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
744 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
1014 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
745 | |
1015 | |
746 | GvSV (PL_defgv) = newSV (0); |
1016 | GvSV (PL_defgv) = newSV (0); |
747 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
1017 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
748 | GvSV (PL_errgv) = newSV (0); |
1018 | GvSV (PL_errgv) = newSV (0); |
749 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
1019 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
1020 | GvHV (PL_hintgv) = 0; |
750 | PL_rs = newSVsv (GvSV (irsgv)); |
1021 | PL_rs = newSVsv (GvSV (irsgv)); |
751 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
1022 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
752 | |
1023 | |
753 | { |
1024 | { |
754 | dSP; |
1025 | dSP; |
755 | LOGOP myop; |
1026 | UNOP myop; |
756 | |
1027 | |
757 | Zero (&myop, 1, LOGOP); |
1028 | Zero (&myop, 1, UNOP); |
758 | myop.op_next = Nullop; |
1029 | myop.op_next = Nullop; |
|
|
1030 | myop.op_type = OP_ENTERSUB; |
759 | myop.op_flags = OPf_WANT_VOID; |
1031 | myop.op_flags = OPf_WANT_VOID; |
760 | |
1032 | |
761 | PUSHMARK (SP); |
1033 | PUSHMARK (SP); |
762 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
1034 | PUSHs ((SV *)coro->startcv); |
763 | PUTBACK; |
1035 | PUTBACK; |
764 | PL_op = (OP *)&myop; |
1036 | PL_op = (OP *)&myop; |
765 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1037 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
766 | SPAGAIN; |
|
|
767 | } |
1038 | } |
768 | |
1039 | |
769 | /* this newly created coroutine might be run on an existing cctx which most |
1040 | /* this newly created coroutine might be run on an existing cctx which most |
770 | * likely was suspended in set_stacklevel, called from entersub. |
1041 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
771 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
772 | * so we ENTER here for symmetry |
|
|
773 | */ |
1042 | */ |
774 | ENTER; |
1043 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
775 | } |
1044 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
776 | |
1045 | |
|
|
1046 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
1047 | coro_setup_op.op_next = PL_op; |
|
|
1048 | coro_setup_op.op_type = OP_ENTERSUB; |
|
|
1049 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
1050 | /* no flags etc. required, as an init function won't be called */ |
|
|
1051 | |
|
|
1052 | PL_op = (OP *)&coro_setup_op; |
|
|
1053 | |
|
|
1054 | /* copy throw, in case it was set before coro_setup */ |
|
|
1055 | CORO_THROW = coro->except; |
|
|
1056 | |
|
|
1057 | if (expect_false (enable_times)) |
|
|
1058 | { |
|
|
1059 | coro_times_update (); |
|
|
1060 | coro_times_sub (coro); |
|
|
1061 | } |
|
|
1062 | } |
|
|
1063 | |
777 | static void |
1064 | static void |
778 | coro_destroy (pTHX_ struct coro *coro) |
1065 | coro_unwind_stacks (pTHX) |
779 | { |
1066 | { |
780 | if (!IN_DESTRUCT) |
1067 | if (!IN_DESTRUCT) |
781 | { |
1068 | { |
782 | /* restore all saved variables and stuff */ |
1069 | /* restore all saved variables and stuff */ |
783 | LEAVE_SCOPE (0); |
1070 | LEAVE_SCOPE (0); |
… | |
… | |
791 | POPSTACK_TO (PL_mainstack); |
1078 | POPSTACK_TO (PL_mainstack); |
792 | |
1079 | |
793 | /* unwind main stack */ |
1080 | /* unwind main stack */ |
794 | dounwind (-1); |
1081 | dounwind (-1); |
795 | } |
1082 | } |
|
|
1083 | } |
796 | |
1084 | |
797 | SvREFCNT_dec (GvSV (PL_defgv)); |
1085 | static void |
798 | SvREFCNT_dec (GvAV (PL_defgv)); |
1086 | coro_destruct_perl (pTHX_ struct coro *coro) |
799 | SvREFCNT_dec (GvSV (PL_errgv)); |
1087 | { |
800 | SvREFCNT_dec (PL_defoutgv); |
1088 | SV *svf [9]; |
801 | SvREFCNT_dec (PL_rs); |
|
|
802 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
803 | |
1089 | |
804 | SvREFCNT_dec (PL_diehook); |
|
|
805 | SvREFCNT_dec (PL_warnhook); |
|
|
806 | |
1090 | { |
|
|
1091 | struct coro *current = SvSTATE_current; |
|
|
1092 | |
|
|
1093 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1094 | |
|
|
1095 | save_perl (aTHX_ current); |
|
|
1096 | load_perl (aTHX_ coro); |
|
|
1097 | |
|
|
1098 | coro_unwind_stacks (aTHX); |
|
|
1099 | coro_destruct_stacks (aTHX); |
|
|
1100 | |
|
|
1101 | // now save some sv's to be free'd later |
|
|
1102 | svf [0] = GvSV (PL_defgv); |
|
|
1103 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1104 | svf [2] = GvSV (PL_errgv); |
|
|
1105 | svf [3] = (SV *)PL_defoutgv; |
|
|
1106 | svf [4] = PL_rs; |
|
|
1107 | svf [5] = GvSV (irsgv); |
|
|
1108 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1109 | svf [7] = PL_diehook; |
|
|
1110 | svf [8] = PL_warnhook; |
|
|
1111 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1112 | |
|
|
1113 | load_perl (aTHX_ current); |
|
|
1114 | } |
|
|
1115 | |
|
|
1116 | { |
|
|
1117 | unsigned int i; |
|
|
1118 | |
|
|
1119 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1120 | SvREFCNT_dec (svf [i]); |
|
|
1121 | |
807 | SvREFCNT_dec (coro->saved_deffh); |
1122 | SvREFCNT_dec (coro->saved_deffh); |
808 | SvREFCNT_dec (coro->throw); |
1123 | SvREFCNT_dec (coro->rouse_cb); |
809 | |
1124 | SvREFCNT_dec (coro->invoke_cb); |
810 | coro_destroy_stacks (aTHX); |
1125 | SvREFCNT_dec (coro->invoke_av); |
|
|
1126 | } |
811 | } |
1127 | } |
812 | |
1128 | |
813 | static void |
1129 | INLINE void |
814 | free_coro_mortal (pTHX) |
1130 | free_coro_mortal (pTHX) |
815 | { |
1131 | { |
816 | if (expect_true (coro_mortal)) |
1132 | if (expect_true (coro_mortal)) |
817 | { |
1133 | { |
818 | SvREFCNT_dec (coro_mortal); |
1134 | SvREFCNT_dec (coro_mortal); |
… | |
… | |
823 | static int |
1139 | static int |
824 | runops_trace (pTHX) |
1140 | runops_trace (pTHX) |
825 | { |
1141 | { |
826 | COP *oldcop = 0; |
1142 | COP *oldcop = 0; |
827 | int oldcxix = -2; |
1143 | int oldcxix = -2; |
828 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
829 | coro_cctx *cctx = coro->cctx; |
|
|
830 | |
1144 | |
831 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1145 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
832 | { |
1146 | { |
833 | PERL_ASYNC_CHECK (); |
1147 | PERL_ASYNC_CHECK (); |
834 | |
1148 | |
835 | if (cctx->flags & CC_TRACE_ALL) |
1149 | if (cctx_current->flags & CC_TRACE_ALL) |
836 | { |
1150 | { |
837 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1151 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
838 | { |
1152 | { |
839 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1153 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
840 | SV **bot, **top; |
1154 | SV **bot, **top; |
841 | AV *av = newAV (); /* return values */ |
1155 | AV *av = newAV (); /* return values */ |
842 | SV **cb; |
1156 | SV **cb; |
… | |
… | |
852 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
1166 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
853 | : bot; |
1167 | : bot; |
854 | |
1168 | |
855 | av_extend (av, top - bot); |
1169 | av_extend (av, top - bot); |
856 | while (bot < top) |
1170 | while (bot < top) |
857 | av_push (av, SvREFCNT_inc (*bot++)); |
1171 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
858 | |
1172 | |
859 | PL_runops = RUNOPS_DEFAULT; |
1173 | PL_runops = RUNOPS_DEFAULT; |
860 | ENTER; |
1174 | ENTER; |
861 | SAVETMPS; |
1175 | SAVETMPS; |
862 | EXTEND (SP, 3); |
1176 | EXTEND (SP, 3); |
… | |
… | |
879 | |
1193 | |
880 | if (PL_curcop != &PL_compiling) |
1194 | if (PL_curcop != &PL_compiling) |
881 | { |
1195 | { |
882 | SV **cb; |
1196 | SV **cb; |
883 | |
1197 | |
884 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1198 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
885 | { |
1199 | { |
886 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1200 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
887 | |
1201 | |
888 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1202 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
889 | { |
1203 | { |
890 | runops_proc_t old_runops = PL_runops; |
|
|
891 | dSP; |
1204 | dSP; |
892 | GV *gv = CvGV (cx->blk_sub.cv); |
1205 | GV *gv = CvGV (cx->blk_sub.cv); |
893 | SV *fullname = sv_2mortal (newSV (0)); |
1206 | SV *fullname = sv_2mortal (newSV (0)); |
894 | |
1207 | |
895 | if (isGV (gv)) |
1208 | if (isGV (gv)) |
… | |
… | |
900 | SAVETMPS; |
1213 | SAVETMPS; |
901 | EXTEND (SP, 3); |
1214 | EXTEND (SP, 3); |
902 | PUSHMARK (SP); |
1215 | PUSHMARK (SP); |
903 | PUSHs (&PL_sv_yes); |
1216 | PUSHs (&PL_sv_yes); |
904 | PUSHs (fullname); |
1217 | PUSHs (fullname); |
905 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1218 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
906 | PUTBACK; |
1219 | PUTBACK; |
907 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1220 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
908 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1221 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
909 | SPAGAIN; |
1222 | SPAGAIN; |
910 | FREETMPS; |
1223 | FREETMPS; |
… | |
… | |
913 | } |
1226 | } |
914 | |
1227 | |
915 | oldcxix = cxstack_ix; |
1228 | oldcxix = cxstack_ix; |
916 | } |
1229 | } |
917 | |
1230 | |
918 | if (cctx->flags & CC_TRACE_LINE) |
1231 | if (cctx_current->flags & CC_TRACE_LINE) |
919 | { |
1232 | { |
920 | dSP; |
1233 | dSP; |
921 | |
1234 | |
922 | PL_runops = RUNOPS_DEFAULT; |
1235 | PL_runops = RUNOPS_DEFAULT; |
923 | ENTER; |
1236 | ENTER; |
… | |
… | |
942 | |
1255 | |
943 | TAINT_NOT; |
1256 | TAINT_NOT; |
944 | return 0; |
1257 | return 0; |
945 | } |
1258 | } |
946 | |
1259 | |
947 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1260 | static struct CoroSLF cctx_ssl_frame; |
948 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1261 | |
949 | /* during execution of a perl program */ |
1262 | static void |
|
|
1263 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1264 | { |
|
|
1265 | ta->prev = 0; |
|
|
1266 | } |
|
|
1267 | |
|
|
1268 | static int |
|
|
1269 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1270 | { |
|
|
1271 | *frame = cctx_ssl_frame; |
|
|
1272 | |
|
|
1273 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1274 | } |
|
|
1275 | |
|
|
1276 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
950 | static void NOINLINE |
1277 | static void NOINLINE |
951 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1278 | cctx_prepare (pTHX) |
952 | { |
1279 | { |
953 | dSP; |
|
|
954 | LOGOP myop; |
|
|
955 | |
|
|
956 | PL_top_env = &PL_start_env; |
1280 | PL_top_env = &PL_start_env; |
957 | |
1281 | |
958 | if (cctx->flags & CC_TRACE) |
1282 | if (cctx_current->flags & CC_TRACE) |
959 | PL_runops = runops_trace; |
1283 | PL_runops = runops_trace; |
960 | |
1284 | |
961 | Zero (&myop, 1, LOGOP); |
1285 | /* we already must be executing an SLF op, there is no other valid way |
962 | myop.op_next = PL_op; |
1286 | * that can lead to creation of a new cctx */ |
963 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1287 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1288 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
964 | |
1289 | |
965 | PUSHMARK (SP); |
1290 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
966 | EXTEND (SP, 2); |
1291 | cctx_ssl_frame = slf_frame; |
967 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1292 | |
968 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1293 | slf_frame.prepare = slf_prepare_set_stacklevel; |
969 | PUTBACK; |
1294 | slf_frame.check = slf_check_set_stacklevel; |
970 | PL_op = (OP *)&myop; |
1295 | } |
971 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1296 | |
972 | SPAGAIN; |
1297 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1298 | INLINE void |
|
|
1299 | transfer_tail (pTHX) |
|
|
1300 | { |
|
|
1301 | free_coro_mortal (aTHX); |
973 | } |
1302 | } |
974 | |
1303 | |
975 | /* |
1304 | /* |
976 | * this is a _very_ stripped down perl interpreter ;) |
1305 | * this is a _very_ stripped down perl interpreter ;) |
977 | */ |
1306 | */ |
978 | static void |
1307 | static void |
979 | cctx_run (void *arg) |
1308 | cctx_run (void *arg) |
980 | { |
1309 | { |
|
|
1310 | #ifdef USE_ITHREADS |
|
|
1311 | # if CORO_PTHREAD |
|
|
1312 | PERL_SET_CONTEXT (coro_thx); |
|
|
1313 | # endif |
|
|
1314 | #endif |
|
|
1315 | { |
981 | dTHX; |
1316 | dTHX; |
982 | |
1317 | |
983 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
1318 | /* normally we would need to skip the entersub here */ |
984 | UNLOCK; |
1319 | /* not doing so will re-execute it, which is exactly what we want */ |
985 | |
|
|
986 | /* we now skip the entersub that lead to transfer() */ |
|
|
987 | PL_op = PL_op->op_next; |
1320 | /* PL_nop = PL_nop->op_next */ |
988 | |
1321 | |
989 | /* inject a fake subroutine call to cctx_init */ |
1322 | /* inject a fake subroutine call to cctx_init */ |
990 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1323 | cctx_prepare (aTHX); |
991 | |
1324 | |
|
|
1325 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1326 | transfer_tail (aTHX); |
|
|
1327 | |
992 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1328 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
993 | PL_restartop = PL_op; |
1329 | PL_restartop = PL_op; |
994 | perl_run (PL_curinterp); |
1330 | perl_run (PL_curinterp); |
995 | |
|
|
996 | /* |
1331 | /* |
|
|
1332 | * Unfortunately, there is no way to get at the return values of the |
|
|
1333 | * coro body here, as perl_run destroys these |
|
|
1334 | */ |
|
|
1335 | |
|
|
1336 | /* |
997 | * If perl-run returns we assume exit() was being called or the coro |
1337 | * If perl-run returns we assume exit() was being called or the coro |
998 | * fell off the end, which seems to be the only valid (non-bug) |
1338 | * fell off the end, which seems to be the only valid (non-bug) |
999 | * reason for perl_run to return. We try to exit by jumping to the |
1339 | * reason for perl_run to return. We try to exit by jumping to the |
1000 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1340 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1001 | * coroutine as Coro has no such concept |
1341 | * coroutine as Coro has no such concept. |
|
|
1342 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1343 | * that backend are too broken to do it in a standards-compliant way. |
1002 | */ |
1344 | */ |
1003 | PL_top_env = main_top_env; |
1345 | PL_top_env = main_top_env; |
1004 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1346 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1347 | } |
1005 | } |
1348 | } |
1006 | |
1349 | |
1007 | static coro_cctx * |
1350 | static coro_cctx * |
1008 | cctx_new () |
1351 | cctx_new () |
1009 | { |
1352 | { |
1010 | coro_cctx *cctx; |
1353 | coro_cctx *cctx; |
|
|
1354 | |
|
|
1355 | ++cctx_count; |
|
|
1356 | New (0, cctx, 1, coro_cctx); |
|
|
1357 | |
|
|
1358 | cctx->gen = cctx_gen; |
|
|
1359 | cctx->flags = 0; |
|
|
1360 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1361 | |
|
|
1362 | return cctx; |
|
|
1363 | } |
|
|
1364 | |
|
|
1365 | /* create a new cctx only suitable as source */ |
|
|
1366 | static coro_cctx * |
|
|
1367 | cctx_new_empty () |
|
|
1368 | { |
|
|
1369 | coro_cctx *cctx = cctx_new (); |
|
|
1370 | |
|
|
1371 | cctx->sptr = 0; |
|
|
1372 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1373 | |
|
|
1374 | return cctx; |
|
|
1375 | } |
|
|
1376 | |
|
|
1377 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1378 | static coro_cctx * |
|
|
1379 | cctx_new_run () |
|
|
1380 | { |
|
|
1381 | coro_cctx *cctx = cctx_new (); |
1011 | void *stack_start; |
1382 | void *stack_start; |
1012 | size_t stack_size; |
1383 | size_t stack_size; |
1013 | |
1384 | |
1014 | ++cctx_count; |
|
|
1015 | |
|
|
1016 | Newz (0, cctx, 1, coro_cctx); |
|
|
1017 | |
|
|
1018 | #if HAVE_MMAP |
1385 | #if HAVE_MMAP |
1019 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1386 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1020 | /* mmap supposedly does allocate-on-write for us */ |
1387 | /* mmap supposedly does allocate-on-write for us */ |
1021 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1388 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1022 | |
1389 | |
1023 | if (cctx->sptr != (void *)-1) |
1390 | if (cctx->sptr != (void *)-1) |
1024 | { |
1391 | { |
1025 | # if CORO_STACKGUARD |
1392 | #if CORO_STACKGUARD |
1026 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1393 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1027 | # endif |
1394 | #endif |
1028 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1395 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
1029 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1396 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1030 | cctx->flags |= CC_MAPPED; |
1397 | cctx->flags |= CC_MAPPED; |
1031 | } |
1398 | } |
1032 | else |
1399 | else |
1033 | #endif |
1400 | #endif |
1034 | { |
1401 | { |
1035 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1402 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1036 | New (0, cctx->sptr, coro_stacksize, long); |
1403 | New (0, cctx->sptr, cctx_stacksize, long); |
1037 | |
1404 | |
1038 | if (!cctx->sptr) |
1405 | if (!cctx->sptr) |
1039 | { |
1406 | { |
1040 | perror ("FATAL: unable to allocate stack for coroutine"); |
1407 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1041 | _exit (EXIT_FAILURE); |
1408 | _exit (EXIT_FAILURE); |
1042 | } |
1409 | } |
1043 | |
1410 | |
1044 | stack_start = cctx->sptr; |
1411 | stack_start = cctx->sptr; |
1045 | stack_size = cctx->ssize; |
1412 | stack_size = cctx->ssize; |
1046 | } |
1413 | } |
1047 | |
1414 | |
1048 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1415 | #if CORO_USE_VALGRIND |
|
|
1416 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1417 | #endif |
|
|
1418 | |
1049 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1419 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1050 | |
1420 | |
1051 | return cctx; |
1421 | return cctx; |
1052 | } |
1422 | } |
1053 | |
1423 | |
… | |
… | |
1055 | cctx_destroy (coro_cctx *cctx) |
1425 | cctx_destroy (coro_cctx *cctx) |
1056 | { |
1426 | { |
1057 | if (!cctx) |
1427 | if (!cctx) |
1058 | return; |
1428 | return; |
1059 | |
1429 | |
|
|
1430 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? |
|
|
1431 | |
1060 | --cctx_count; |
1432 | --cctx_count; |
|
|
1433 | coro_destroy (&cctx->cctx); |
1061 | |
1434 | |
|
|
1435 | /* coro_transfer creates new, empty cctx's */ |
|
|
1436 | if (cctx->sptr) |
|
|
1437 | { |
1062 | #if CORO_USE_VALGRIND |
1438 | #if CORO_USE_VALGRIND |
1063 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1439 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1064 | #endif |
1440 | #endif |
1065 | |
1441 | |
1066 | #if HAVE_MMAP |
1442 | #if HAVE_MMAP |
1067 | if (cctx->flags & CC_MAPPED) |
1443 | if (cctx->flags & CC_MAPPED) |
1068 | munmap (cctx->sptr, cctx->ssize); |
1444 | munmap (cctx->sptr, cctx->ssize); |
1069 | else |
1445 | else |
1070 | #endif |
1446 | #endif |
1071 | Safefree (cctx->sptr); |
1447 | Safefree (cctx->sptr); |
|
|
1448 | } |
1072 | |
1449 | |
1073 | Safefree (cctx); |
1450 | Safefree (cctx); |
1074 | } |
1451 | } |
1075 | |
1452 | |
1076 | /* wether this cctx should be destructed */ |
1453 | /* wether this cctx should be destructed */ |
1077 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
1454 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1078 | |
1455 | |
1079 | static coro_cctx * |
1456 | static coro_cctx * |
1080 | cctx_get (pTHX) |
1457 | cctx_get (pTHX) |
1081 | { |
1458 | { |
1082 | while (expect_true (cctx_first)) |
1459 | while (expect_true (cctx_first)) |
… | |
… | |
1089 | return cctx; |
1466 | return cctx; |
1090 | |
1467 | |
1091 | cctx_destroy (cctx); |
1468 | cctx_destroy (cctx); |
1092 | } |
1469 | } |
1093 | |
1470 | |
1094 | return cctx_new (); |
1471 | return cctx_new_run (); |
1095 | } |
1472 | } |
1096 | |
1473 | |
1097 | static void |
1474 | static void |
1098 | cctx_put (coro_cctx *cctx) |
1475 | cctx_put (coro_cctx *cctx) |
1099 | { |
1476 | { |
|
|
1477 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1478 | |
1100 | /* free another cctx if overlimit */ |
1479 | /* free another cctx if overlimit */ |
1101 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
1480 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1102 | { |
1481 | { |
1103 | coro_cctx *first = cctx_first; |
1482 | coro_cctx *first = cctx_first; |
1104 | cctx_first = first->next; |
1483 | cctx_first = first->next; |
1105 | --cctx_idle; |
1484 | --cctx_idle; |
1106 | |
1485 | |
… | |
… | |
1115 | /** coroutine switching *****************************************************/ |
1494 | /** coroutine switching *****************************************************/ |
1116 | |
1495 | |
1117 | static void |
1496 | static void |
1118 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1497 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1119 | { |
1498 | { |
|
|
1499 | /* TODO: throwing up here is considered harmful */ |
|
|
1500 | |
1120 | if (expect_true (prev != next)) |
1501 | if (expect_true (prev != next)) |
1121 | { |
1502 | { |
1122 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1503 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1123 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1504 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1124 | |
1505 | |
1125 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1126 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1127 | |
|
|
1128 | if (expect_false (next->flags & CF_DESTROYED)) |
1506 | if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) |
1129 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1507 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1130 | |
1508 | |
1131 | if ( |
|
|
1132 | #if PERL_VERSION_ATLEAST (5,9,0) |
1509 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1133 | expect_false (PL_parser && PL_parser->lex_state != LEX_NOTPARSING) |
|
|
1134 | #else |
|
|
1135 | expect_false (PL_lex_state != LEX_NOTPARSING) |
1510 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1136 | #endif |
|
|
1137 | ) |
|
|
1138 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
1511 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1512 | #endif |
1139 | } |
1513 | } |
1140 | } |
1514 | } |
1141 | |
1515 | |
1142 | /* always use the TRANSFER macro */ |
1516 | /* always use the TRANSFER macro */ |
1143 | static void NOINLINE |
1517 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1144 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1518 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1145 | { |
1519 | { |
1146 | dSTACKLEVEL; |
1520 | dSTACKLEVEL; |
1147 | static volatile int has_throw; |
|
|
1148 | |
1521 | |
1149 | /* sometimes transfer is only called to set idle_sp */ |
1522 | /* sometimes transfer is only called to set idle_sp */ |
1150 | if (expect_false (!next)) |
1523 | if (expect_false (!prev)) |
1151 | { |
1524 | { |
1152 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1525 | cctx_current->idle_sp = STACKLEVEL; |
1153 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1526 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1154 | } |
1527 | } |
1155 | else if (expect_true (prev != next)) |
1528 | else if (expect_true (prev != next)) |
1156 | { |
1529 | { |
1157 | coro_cctx *prev__cctx; |
1530 | coro_cctx *cctx_prev; |
1158 | |
1531 | |
1159 | if (expect_false (prev->flags & CF_NEW)) |
1532 | if (expect_false (prev->flags & CF_NEW)) |
1160 | { |
1533 | { |
1161 | /* create a new empty context */ |
1534 | /* create a new empty/source context */ |
1162 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
1163 | prev->flags &= ~CF_NEW; |
1535 | prev->flags &= ~CF_NEW; |
1164 | prev->flags |= CF_RUNNING; |
1536 | prev->flags |= CF_RUNNING; |
1165 | } |
1537 | } |
1166 | |
1538 | |
1167 | prev->flags &= ~CF_RUNNING; |
1539 | prev->flags &= ~CF_RUNNING; |
1168 | next->flags |= CF_RUNNING; |
1540 | next->flags |= CF_RUNNING; |
1169 | |
|
|
1170 | LOCK; |
|
|
1171 | |
1541 | |
1172 | /* first get rid of the old state */ |
1542 | /* first get rid of the old state */ |
1173 | save_perl (aTHX_ prev); |
1543 | save_perl (aTHX_ prev); |
1174 | |
1544 | |
1175 | if (expect_false (next->flags & CF_NEW)) |
1545 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1180 | coro_setup (aTHX_ next); |
1550 | coro_setup (aTHX_ next); |
1181 | } |
1551 | } |
1182 | else |
1552 | else |
1183 | load_perl (aTHX_ next); |
1553 | load_perl (aTHX_ next); |
1184 | |
1554 | |
1185 | prev__cctx = prev->cctx; |
|
|
1186 | |
|
|
1187 | /* possibly "free" the cctx */ |
1555 | /* possibly untie and reuse the cctx */ |
1188 | if (expect_true ( |
1556 | if (expect_true ( |
1189 | prev__cctx->idle_sp == STACKLEVEL |
1557 | cctx_current->idle_sp == STACKLEVEL |
1190 | && !(prev__cctx->flags & CC_TRACE) |
1558 | && !(cctx_current->flags & CC_TRACE) |
1191 | && !force_cctx |
1559 | && !force_cctx |
1192 | )) |
1560 | )) |
1193 | { |
1561 | { |
1194 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1562 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1195 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1563 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1196 | |
1564 | |
1197 | prev->cctx = 0; |
|
|
1198 | |
|
|
1199 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1565 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1200 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1566 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1201 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1567 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
1202 | if (!next->cctx) |
1568 | if (expect_true (!next->cctx)) |
1203 | next->cctx = cctx_get (aTHX); |
1569 | next->cctx = cctx_get (aTHX); |
1204 | |
1570 | |
1205 | cctx_put (prev__cctx); |
1571 | cctx_put (cctx_current); |
1206 | } |
1572 | } |
|
|
1573 | else |
|
|
1574 | prev->cctx = cctx_current; |
1207 | |
1575 | |
1208 | ++next->usecount; |
1576 | ++next->usecount; |
1209 | |
1577 | |
1210 | if (expect_true (!next->cctx)) |
1578 | cctx_prev = cctx_current; |
1211 | next->cctx = cctx_get (aTHX); |
1579 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1212 | |
1580 | |
1213 | has_throw = !!next->throw; |
1581 | next->cctx = 0; |
1214 | |
1582 | |
1215 | if (expect_false (prev__cctx != next->cctx)) |
1583 | if (expect_false (cctx_prev != cctx_current)) |
1216 | { |
1584 | { |
1217 | prev__cctx->top_env = PL_top_env; |
1585 | cctx_prev->top_env = PL_top_env; |
1218 | PL_top_env = next->cctx->top_env; |
1586 | PL_top_env = cctx_current->top_env; |
1219 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1587 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1220 | } |
1588 | } |
1221 | |
1589 | |
1222 | free_coro_mortal (aTHX); |
1590 | transfer_tail (aTHX); |
1223 | UNLOCK; |
|
|
1224 | |
|
|
1225 | if (expect_false (has_throw)) |
|
|
1226 | { |
|
|
1227 | struct coro *coro = SvSTATE (coro_current); |
|
|
1228 | |
|
|
1229 | if (coro->throw) |
|
|
1230 | { |
|
|
1231 | SV *exception = coro->throw; |
|
|
1232 | coro->throw = 0; |
|
|
1233 | sv_setsv (ERRSV, exception); |
|
|
1234 | croak (0); |
|
|
1235 | } |
|
|
1236 | } |
|
|
1237 | } |
1591 | } |
1238 | } |
1592 | } |
1239 | |
|
|
1240 | struct transfer_args |
|
|
1241 | { |
|
|
1242 | struct coro *prev, *next; |
|
|
1243 | }; |
|
|
1244 | |
1593 | |
1245 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1594 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1246 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1595 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1247 | |
1596 | |
1248 | /** high level stuff ********************************************************/ |
1597 | /** high level stuff ********************************************************/ |
… | |
… | |
1250 | static int |
1599 | static int |
1251 | coro_state_destroy (pTHX_ struct coro *coro) |
1600 | coro_state_destroy (pTHX_ struct coro *coro) |
1252 | { |
1601 | { |
1253 | if (coro->flags & CF_DESTROYED) |
1602 | if (coro->flags & CF_DESTROYED) |
1254 | return 0; |
1603 | return 0; |
|
|
1604 | |
|
|
1605 | if (coro->on_destroy && !PL_dirty) |
|
|
1606 | coro->on_destroy (aTHX_ coro); |
1255 | |
1607 | |
1256 | coro->flags |= CF_DESTROYED; |
1608 | coro->flags |= CF_DESTROYED; |
1257 | |
1609 | |
1258 | if (coro->flags & CF_READY) |
1610 | if (coro->flags & CF_READY) |
1259 | { |
1611 | { |
1260 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1612 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1261 | /* alternative: look through all ready queues and remove the coro */ |
1613 | /* alternative: look through all ready queues and remove the coro */ |
1262 | LOCK; |
|
|
1263 | --coro_nready; |
1614 | --coro_nready; |
1264 | UNLOCK; |
|
|
1265 | } |
1615 | } |
1266 | else |
1616 | else |
1267 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1617 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1268 | |
1618 | |
1269 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1619 | if (coro->mainstack |
1270 | { |
1620 | && coro->mainstack != main_mainstack |
1271 | struct coro temp; |
1621 | && coro->slot |
1272 | |
1622 | && !PL_dirty) |
1273 | if (coro->flags & CF_RUNNING) |
|
|
1274 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1275 | |
|
|
1276 | save_perl (aTHX_ &temp); |
|
|
1277 | load_perl (aTHX_ coro); |
|
|
1278 | |
|
|
1279 | coro_destroy (aTHX_ coro); |
1623 | coro_destruct_perl (aTHX_ coro); |
1280 | |
|
|
1281 | load_perl (aTHX_ &temp); |
|
|
1282 | |
|
|
1283 | coro->slot = 0; |
|
|
1284 | } |
|
|
1285 | |
1624 | |
1286 | cctx_destroy (coro->cctx); |
1625 | cctx_destroy (coro->cctx); |
|
|
1626 | SvREFCNT_dec (coro->startcv); |
1287 | SvREFCNT_dec (coro->args); |
1627 | SvREFCNT_dec (coro->args); |
|
|
1628 | SvREFCNT_dec (CORO_THROW); |
1288 | |
1629 | |
1289 | if (coro->next) coro->next->prev = coro->prev; |
1630 | if (coro->next) coro->next->prev = coro->prev; |
1290 | if (coro->prev) coro->prev->next = coro->next; |
1631 | if (coro->prev) coro->prev->next = coro->next; |
1291 | if (coro == coro_first) coro_first = coro->next; |
1632 | if (coro == coro_first) coro_first = coro->next; |
1292 | |
1633 | |
… | |
… | |
1330 | # define MGf_DUP 0 |
1671 | # define MGf_DUP 0 |
1331 | #endif |
1672 | #endif |
1332 | }; |
1673 | }; |
1333 | |
1674 | |
1334 | static void |
1675 | static void |
1335 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1676 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1336 | { |
1677 | { |
1337 | ta->prev = SvSTATE (prev_sv); |
1678 | ta->prev = SvSTATE (prev_sv); |
1338 | ta->next = SvSTATE (next_sv); |
1679 | ta->next = SvSTATE (next_sv); |
1339 | TRANSFER_CHECK (*ta); |
1680 | TRANSFER_CHECK (*ta); |
1340 | } |
1681 | } |
1341 | |
1682 | |
1342 | static void |
1683 | static void |
1343 | api_transfer (SV *prev_sv, SV *next_sv) |
1684 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1344 | { |
1685 | { |
1345 | dTHX; |
|
|
1346 | struct transfer_args ta; |
1686 | struct coro_transfer_args ta; |
1347 | |
1687 | |
1348 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1688 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1349 | TRANSFER (ta, 1); |
1689 | TRANSFER (ta, 1); |
1350 | } |
1690 | } |
1351 | |
1691 | |
|
|
1692 | /*****************************************************************************/ |
|
|
1693 | /* gensub: simple closure generation utility */ |
|
|
1694 | |
|
|
1695 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1696 | |
|
|
1697 | /* create a closure from XS, returns a code reference */ |
|
|
1698 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1699 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1700 | static SV * |
|
|
1701 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1702 | { |
|
|
1703 | CV *cv = (CV *)newSV (0); |
|
|
1704 | |
|
|
1705 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1706 | |
|
|
1707 | CvANON_on (cv); |
|
|
1708 | CvISXSUB_on (cv); |
|
|
1709 | CvXSUB (cv) = xsub; |
|
|
1710 | GENSUB_ARG = arg; |
|
|
1711 | |
|
|
1712 | return newRV_noinc ((SV *)cv); |
|
|
1713 | } |
|
|
1714 | |
1352 | /** Coro ********************************************************************/ |
1715 | /** Coro ********************************************************************/ |
1353 | |
1716 | |
1354 | static void |
1717 | INLINE void |
1355 | coro_enq (pTHX_ SV *coro_sv) |
1718 | coro_enq (pTHX_ struct coro *coro) |
1356 | { |
1719 | { |
1357 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1720 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1358 | } |
|
|
1359 | |
1721 | |
1360 | static SV * |
1722 | SvREFCNT_inc_NN (coro->hv); |
|
|
1723 | |
|
|
1724 | coro->next_ready = 0; |
|
|
1725 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
|
|
1726 | ready [1] = coro; |
|
|
1727 | } |
|
|
1728 | |
|
|
1729 | INLINE struct coro * |
1361 | coro_deq (pTHX) |
1730 | coro_deq (pTHX) |
1362 | { |
1731 | { |
1363 | int prio; |
1732 | int prio; |
1364 | |
1733 | |
1365 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1734 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
1366 | if (AvFILLp (coro_ready [prio]) >= 0) |
1735 | { |
1367 | return av_shift (coro_ready [prio]); |
1736 | struct coro **ready = coro_ready [prio]; |
|
|
1737 | |
|
|
1738 | if (ready [0]) |
|
|
1739 | { |
|
|
1740 | struct coro *coro = ready [0]; |
|
|
1741 | ready [0] = coro->next_ready; |
|
|
1742 | return coro; |
|
|
1743 | } |
|
|
1744 | } |
1368 | |
1745 | |
1369 | return 0; |
1746 | return 0; |
1370 | } |
1747 | } |
1371 | |
1748 | |
1372 | static int |
1749 | static int |
1373 | api_ready (SV *coro_sv) |
1750 | api_ready (pTHX_ SV *coro_sv) |
1374 | { |
1751 | { |
1375 | dTHX; |
|
|
1376 | struct coro *coro; |
1752 | struct coro *coro; |
1377 | |
1753 | SV *sv_hook; |
1378 | if (SvROK (coro_sv)) |
1754 | void (*xs_hook)(void); |
1379 | coro_sv = SvRV (coro_sv); |
|
|
1380 | |
1755 | |
1381 | coro = SvSTATE (coro_sv); |
1756 | coro = SvSTATE (coro_sv); |
1382 | |
1757 | |
1383 | if (coro->flags & CF_READY) |
1758 | if (coro->flags & CF_READY) |
1384 | return 0; |
1759 | return 0; |
1385 | |
1760 | |
1386 | coro->flags |= CF_READY; |
1761 | coro->flags |= CF_READY; |
1387 | |
1762 | |
1388 | LOCK; |
1763 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1389 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1764 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1765 | |
|
|
1766 | coro_enq (aTHX_ coro); |
1390 | ++coro_nready; |
1767 | ++coro_nready; |
1391 | UNLOCK; |
1768 | |
|
|
1769 | if (sv_hook) |
|
|
1770 | { |
|
|
1771 | dSP; |
|
|
1772 | |
|
|
1773 | ENTER; |
|
|
1774 | SAVETMPS; |
|
|
1775 | |
|
|
1776 | PUSHMARK (SP); |
|
|
1777 | PUTBACK; |
|
|
1778 | call_sv (sv_hook, G_VOID | G_DISCARD); |
|
|
1779 | |
|
|
1780 | FREETMPS; |
|
|
1781 | LEAVE; |
|
|
1782 | } |
|
|
1783 | |
|
|
1784 | if (xs_hook) |
|
|
1785 | xs_hook (); |
1392 | |
1786 | |
1393 | return 1; |
1787 | return 1; |
1394 | } |
1788 | } |
1395 | |
1789 | |
1396 | static int |
1790 | static int |
1397 | api_is_ready (SV *coro_sv) |
1791 | api_is_ready (pTHX_ SV *coro_sv) |
1398 | { |
1792 | { |
1399 | dTHX; |
|
|
1400 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1793 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1401 | } |
1794 | } |
1402 | |
1795 | |
1403 | static void |
1796 | /* expects to own a reference to next->hv */ |
|
|
1797 | INLINE void |
1404 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1798 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1405 | { |
1799 | { |
1406 | SV *prev_sv, *next_sv; |
|
|
1407 | |
|
|
1408 | for (;;) |
|
|
1409 | { |
|
|
1410 | LOCK; |
|
|
1411 | next_sv = coro_deq (aTHX); |
|
|
1412 | |
|
|
1413 | /* nothing to schedule: call the idle handler */ |
|
|
1414 | if (expect_false (!next_sv)) |
|
|
1415 | { |
|
|
1416 | dSP; |
|
|
1417 | UNLOCK; |
|
|
1418 | |
|
|
1419 | ENTER; |
|
|
1420 | SAVETMPS; |
|
|
1421 | |
|
|
1422 | PUSHMARK (SP); |
|
|
1423 | PUTBACK; |
|
|
1424 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1425 | SPAGAIN; |
|
|
1426 | |
|
|
1427 | FREETMPS; |
|
|
1428 | LEAVE; |
|
|
1429 | continue; |
|
|
1430 | } |
|
|
1431 | |
|
|
1432 | ta->next = SvSTATE (next_sv); |
|
|
1433 | |
|
|
1434 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1435 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1436 | { |
|
|
1437 | UNLOCK; |
|
|
1438 | SvREFCNT_dec (next_sv); |
|
|
1439 | /* coro_nready is already taken care of by destroy */ |
|
|
1440 | continue; |
|
|
1441 | } |
|
|
1442 | |
|
|
1443 | --coro_nready; |
|
|
1444 | UNLOCK; |
|
|
1445 | break; |
|
|
1446 | } |
|
|
1447 | |
|
|
1448 | /* free this only after the transfer */ |
|
|
1449 | prev_sv = SvRV (coro_current); |
1800 | SV *prev_sv = SvRV (coro_current); |
|
|
1801 | |
1450 | ta->prev = SvSTATE (prev_sv); |
1802 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1803 | ta->next = next; |
|
|
1804 | |
1451 | TRANSFER_CHECK (*ta); |
1805 | TRANSFER_CHECK (*ta); |
1452 | assert (ta->next->flags & CF_READY); |
1806 | |
1453 | ta->next->flags &= ~CF_READY; |
|
|
1454 | SvRV_set (coro_current, next_sv); |
1807 | SvRV_set (coro_current, (SV *)next->hv); |
1455 | |
1808 | |
1456 | LOCK; |
|
|
1457 | free_coro_mortal (aTHX); |
1809 | free_coro_mortal (aTHX); |
1458 | coro_mortal = prev_sv; |
1810 | coro_mortal = prev_sv; |
1459 | UNLOCK; |
|
|
1460 | } |
1811 | } |
1461 | |
1812 | |
1462 | static void |
1813 | static void |
|
|
1814 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1815 | { |
|
|
1816 | for (;;) |
|
|
1817 | { |
|
|
1818 | struct coro *next = coro_deq (aTHX); |
|
|
1819 | |
|
|
1820 | if (expect_true (next)) |
|
|
1821 | { |
|
|
1822 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1823 | if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) |
|
|
1824 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1825 | else |
|
|
1826 | { |
|
|
1827 | next->flags &= ~CF_READY; |
|
|
1828 | --coro_nready; |
|
|
1829 | |
|
|
1830 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1831 | break; |
|
|
1832 | } |
|
|
1833 | } |
|
|
1834 | else |
|
|
1835 | { |
|
|
1836 | /* nothing to schedule: call the idle handler */ |
|
|
1837 | if (SvROK (sv_idle) |
|
|
1838 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1839 | { |
|
|
1840 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1841 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1842 | --coro_nready; |
|
|
1843 | } |
|
|
1844 | else |
|
|
1845 | { |
|
|
1846 | dSP; |
|
|
1847 | |
|
|
1848 | ENTER; |
|
|
1849 | SAVETMPS; |
|
|
1850 | |
|
|
1851 | PUSHMARK (SP); |
|
|
1852 | PUTBACK; |
|
|
1853 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1854 | |
|
|
1855 | FREETMPS; |
|
|
1856 | LEAVE; |
|
|
1857 | } |
|
|
1858 | } |
|
|
1859 | } |
|
|
1860 | } |
|
|
1861 | |
|
|
1862 | INLINE void |
1463 | prepare_cede (pTHX_ struct transfer_args *ta) |
1863 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1464 | { |
1864 | { |
1465 | api_ready (coro_current); |
1865 | api_ready (aTHX_ coro_current); |
1466 | prepare_schedule (aTHX_ ta); |
1866 | prepare_schedule (aTHX_ ta); |
1467 | } |
1867 | } |
1468 | |
1868 | |
|
|
1869 | INLINE void |
|
|
1870 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1871 | { |
|
|
1872 | SV *prev = SvRV (coro_current); |
|
|
1873 | |
|
|
1874 | if (coro_nready) |
|
|
1875 | { |
|
|
1876 | prepare_schedule (aTHX_ ta); |
|
|
1877 | api_ready (aTHX_ prev); |
|
|
1878 | } |
|
|
1879 | else |
|
|
1880 | prepare_nop (aTHX_ ta); |
|
|
1881 | } |
|
|
1882 | |
|
|
1883 | static void |
|
|
1884 | api_schedule (pTHX) |
|
|
1885 | { |
|
|
1886 | struct coro_transfer_args ta; |
|
|
1887 | |
|
|
1888 | prepare_schedule (aTHX_ &ta); |
|
|
1889 | TRANSFER (ta, 1); |
|
|
1890 | } |
|
|
1891 | |
|
|
1892 | static void |
|
|
1893 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1894 | { |
|
|
1895 | struct coro_transfer_args ta; |
|
|
1896 | struct coro *next = SvSTATE (coro_sv); |
|
|
1897 | |
|
|
1898 | SvREFCNT_inc_NN (coro_sv); |
|
|
1899 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
1900 | } |
|
|
1901 | |
1469 | static int |
1902 | static int |
1470 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1903 | api_cede (pTHX) |
1471 | { |
1904 | { |
1472 | if (coro_nready) |
1905 | struct coro_transfer_args ta; |
1473 | { |
1906 | |
1474 | SV *prev = SvRV (coro_current); |
|
|
1475 | prepare_schedule (aTHX_ ta); |
1907 | prepare_cede (aTHX_ &ta); |
1476 | api_ready (prev); |
1908 | |
|
|
1909 | if (expect_true (ta.prev != ta.next)) |
|
|
1910 | { |
|
|
1911 | TRANSFER (ta, 1); |
1477 | return 1; |
1912 | return 1; |
1478 | } |
1913 | } |
1479 | else |
1914 | else |
1480 | return 0; |
1915 | return 0; |
1481 | } |
1916 | } |
1482 | |
1917 | |
1483 | static void |
|
|
1484 | api_schedule (void) |
|
|
1485 | { |
|
|
1486 | dTHX; |
|
|
1487 | struct transfer_args ta; |
|
|
1488 | |
|
|
1489 | prepare_schedule (aTHX_ &ta); |
|
|
1490 | TRANSFER (ta, 1); |
|
|
1491 | } |
|
|
1492 | |
|
|
1493 | static int |
1918 | static int |
1494 | api_cede (void) |
1919 | api_cede_notself (pTHX) |
1495 | { |
1920 | { |
1496 | dTHX; |
1921 | if (coro_nready) |
|
|
1922 | { |
1497 | struct transfer_args ta; |
1923 | struct coro_transfer_args ta; |
1498 | |
1924 | |
1499 | prepare_cede (aTHX_ &ta); |
1925 | prepare_cede_notself (aTHX_ &ta); |
1500 | |
|
|
1501 | if (expect_true (ta.prev != ta.next)) |
|
|
1502 | { |
|
|
1503 | TRANSFER (ta, 1); |
1926 | TRANSFER (ta, 1); |
1504 | return 1; |
1927 | return 1; |
1505 | } |
1928 | } |
1506 | else |
1929 | else |
1507 | return 0; |
1930 | return 0; |
1508 | } |
1931 | } |
1509 | |
1932 | |
1510 | static int |
1933 | static void |
1511 | api_cede_notself (void) |
|
|
1512 | { |
|
|
1513 | dTHX; |
|
|
1514 | struct transfer_args ta; |
|
|
1515 | |
|
|
1516 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1517 | { |
|
|
1518 | TRANSFER (ta, 1); |
|
|
1519 | return 1; |
|
|
1520 | } |
|
|
1521 | else |
|
|
1522 | return 0; |
|
|
1523 | } |
|
|
1524 | |
|
|
1525 | static void |
|
|
1526 | api_trace (SV *coro_sv, int flags) |
1934 | api_trace (pTHX_ SV *coro_sv, int flags) |
1527 | { |
1935 | { |
1528 | dTHX; |
|
|
1529 | struct coro *coro = SvSTATE (coro_sv); |
1936 | struct coro *coro = SvSTATE (coro_sv); |
1530 | |
1937 | |
|
|
1938 | if (coro->flags & CF_RUNNING) |
|
|
1939 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
1940 | |
1531 | if (flags & CC_TRACE) |
1941 | if (flags & CC_TRACE) |
1532 | { |
1942 | { |
1533 | if (!coro->cctx) |
1943 | if (!coro->cctx) |
1534 | coro->cctx = cctx_new (); |
1944 | coro->cctx = cctx_new_run (); |
1535 | else if (!(coro->cctx->flags & CC_TRACE)) |
1945 | else if (!(coro->cctx->flags & CC_TRACE)) |
1536 | croak ("cannot enable tracing on coroutine with custom stack"); |
1946 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1537 | |
1947 | |
1538 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1948 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1539 | } |
1949 | } |
1540 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1950 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1541 | { |
1951 | { |
… | |
… | |
1546 | else |
1956 | else |
1547 | coro->slot->runops = RUNOPS_DEFAULT; |
1957 | coro->slot->runops = RUNOPS_DEFAULT; |
1548 | } |
1958 | } |
1549 | } |
1959 | } |
1550 | |
1960 | |
|
|
1961 | static void |
|
|
1962 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
1963 | { |
|
|
1964 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
|
|
1965 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
1966 | |
|
|
1967 | if (on_destroyp) |
|
|
1968 | { |
|
|
1969 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
1970 | |
|
|
1971 | while (AvFILLp (on_destroy) >= 0) |
|
|
1972 | { |
|
|
1973 | dSP; /* don't disturb outer sp */ |
|
|
1974 | SV *cb = av_pop (on_destroy); |
|
|
1975 | |
|
|
1976 | PUSHMARK (SP); |
|
|
1977 | |
|
|
1978 | if (statusp) |
|
|
1979 | { |
|
|
1980 | int i; |
|
|
1981 | AV *status = (AV *)SvRV (*statusp); |
|
|
1982 | EXTEND (SP, AvFILLp (status) + 1); |
|
|
1983 | |
|
|
1984 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
1985 | PUSHs (AvARRAY (status)[i]); |
|
|
1986 | } |
|
|
1987 | |
|
|
1988 | PUTBACK; |
|
|
1989 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
|
|
1990 | } |
|
|
1991 | } |
|
|
1992 | } |
|
|
1993 | |
|
|
1994 | static void |
|
|
1995 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1996 | { |
|
|
1997 | int i; |
|
|
1998 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1999 | AV *av = newAV (); |
|
|
2000 | |
|
|
2001 | av_extend (av, items - 1); |
|
|
2002 | for (i = 0; i < items; ++i) |
|
|
2003 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
2004 | |
|
|
2005 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
|
|
2006 | |
|
|
2007 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
|
|
2008 | api_ready (aTHX_ sv_manager); |
|
|
2009 | |
|
|
2010 | frame->prepare = prepare_schedule; |
|
|
2011 | frame->check = slf_check_repeat; |
|
|
2012 | |
|
|
2013 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
2014 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
2015 | /*coro_unwind_stacks (aTHX);*/ |
|
|
2016 | } |
|
|
2017 | |
|
|
2018 | /*****************************************************************************/ |
|
|
2019 | /* async pool handler */ |
|
|
2020 | |
|
|
2021 | static int |
|
|
2022 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
2023 | { |
|
|
2024 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2025 | struct coro *coro = (struct coro *)frame->data; |
|
|
2026 | |
|
|
2027 | if (!coro->invoke_cb) |
|
|
2028 | return 1; /* loop till we have invoke */ |
|
|
2029 | else |
|
|
2030 | { |
|
|
2031 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2032 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2033 | |
|
|
2034 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2035 | |
|
|
2036 | { |
|
|
2037 | dSP; |
|
|
2038 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
2039 | PUTBACK; |
|
|
2040 | } |
|
|
2041 | |
|
|
2042 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
2043 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
2044 | coro->invoke_av = 0; |
|
|
2045 | |
|
|
2046 | return 0; |
|
|
2047 | } |
|
|
2048 | } |
|
|
2049 | |
|
|
2050 | static void |
|
|
2051 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2052 | { |
|
|
2053 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2054 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2055 | |
|
|
2056 | if (expect_true (coro->saved_deffh)) |
|
|
2057 | { |
|
|
2058 | /* subsequent iteration */ |
|
|
2059 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2060 | coro->saved_deffh = 0; |
|
|
2061 | |
|
|
2062 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2063 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2064 | { |
|
|
2065 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
2066 | coro->invoke_av = newAV (); |
|
|
2067 | |
|
|
2068 | frame->prepare = prepare_nop; |
|
|
2069 | } |
|
|
2070 | else |
|
|
2071 | { |
|
|
2072 | av_clear (GvAV (PL_defgv)); |
|
|
2073 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
2074 | |
|
|
2075 | coro->prio = 0; |
|
|
2076 | |
|
|
2077 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2078 | api_trace (aTHX_ coro_current, 0); |
|
|
2079 | |
|
|
2080 | frame->prepare = prepare_schedule; |
|
|
2081 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2082 | } |
|
|
2083 | } |
|
|
2084 | else |
|
|
2085 | { |
|
|
2086 | /* first iteration, simply fall through */ |
|
|
2087 | frame->prepare = prepare_nop; |
|
|
2088 | } |
|
|
2089 | |
|
|
2090 | frame->check = slf_check_pool_handler; |
|
|
2091 | frame->data = (void *)coro; |
|
|
2092 | } |
|
|
2093 | |
|
|
2094 | /*****************************************************************************/ |
|
|
2095 | /* rouse callback */ |
|
|
2096 | |
|
|
2097 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2098 | |
|
|
2099 | static void |
|
|
2100 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2101 | { |
|
|
2102 | dXSARGS; |
|
|
2103 | SV *data = (SV *)GENSUB_ARG; |
|
|
2104 | |
|
|
2105 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2106 | { |
|
|
2107 | /* first call, set args */ |
|
|
2108 | SV *coro = SvRV (data); |
|
|
2109 | AV *av = newAV (); |
|
|
2110 | |
|
|
2111 | SvRV_set (data, (SV *)av); |
|
|
2112 | |
|
|
2113 | /* better take a full copy of the arguments */ |
|
|
2114 | while (items--) |
|
|
2115 | av_store (av, items, newSVsv (ST (items))); |
|
|
2116 | |
|
|
2117 | api_ready (aTHX_ coro); |
|
|
2118 | SvREFCNT_dec (coro); |
|
|
2119 | } |
|
|
2120 | |
|
|
2121 | XSRETURN_EMPTY; |
|
|
2122 | } |
|
|
2123 | |
|
|
2124 | static int |
|
|
2125 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2126 | { |
|
|
2127 | SV *data = (SV *)frame->data; |
|
|
2128 | |
|
|
2129 | if (CORO_THROW) |
|
|
2130 | return 0; |
|
|
2131 | |
|
|
2132 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2133 | return 1; |
|
|
2134 | |
|
|
2135 | /* now push all results on the stack */ |
|
|
2136 | { |
|
|
2137 | dSP; |
|
|
2138 | AV *av = (AV *)SvRV (data); |
|
|
2139 | int i; |
|
|
2140 | |
|
|
2141 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2142 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2143 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2144 | |
|
|
2145 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2146 | AvFILLp (av) = -1; |
|
|
2147 | av_undef (av); |
|
|
2148 | |
|
|
2149 | PUTBACK; |
|
|
2150 | } |
|
|
2151 | |
|
|
2152 | return 0; |
|
|
2153 | } |
|
|
2154 | |
|
|
2155 | static void |
|
|
2156 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2157 | { |
|
|
2158 | SV *cb; |
|
|
2159 | |
|
|
2160 | if (items) |
|
|
2161 | cb = arg [0]; |
|
|
2162 | else |
|
|
2163 | { |
|
|
2164 | struct coro *coro = SvSTATE_current; |
|
|
2165 | |
|
|
2166 | if (!coro->rouse_cb) |
|
|
2167 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2168 | |
|
|
2169 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2170 | coro->rouse_cb = 0; |
|
|
2171 | } |
|
|
2172 | |
|
|
2173 | if (!SvROK (cb) |
|
|
2174 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2175 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2176 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2177 | |
|
|
2178 | { |
|
|
2179 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
2180 | SV *data = (SV *)GENSUB_ARG; |
|
|
2181 | |
|
|
2182 | frame->data = (void *)data; |
|
|
2183 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2184 | frame->check = slf_check_rouse_wait; |
|
|
2185 | } |
|
|
2186 | } |
|
|
2187 | |
|
|
2188 | static SV * |
|
|
2189 | coro_new_rouse_cb (pTHX) |
|
|
2190 | { |
|
|
2191 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2192 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2193 | SV *data = newRV_inc ((SV *)hv); |
|
|
2194 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2195 | |
|
|
2196 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2197 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2198 | |
|
|
2199 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2200 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2201 | |
|
|
2202 | return cb; |
|
|
2203 | } |
|
|
2204 | |
|
|
2205 | /*****************************************************************************/ |
|
|
2206 | /* schedule-like-function opcode (SLF) */ |
|
|
2207 | |
|
|
2208 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2209 | static const CV *slf_cv; |
|
|
2210 | static SV **slf_argv; |
|
|
2211 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2212 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2213 | |
|
|
2214 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2215 | /* recreate the stack frame as perl will on following calls */ |
|
|
2216 | /* since entersub cleared the stack */ |
|
|
2217 | static OP * |
|
|
2218 | pp_restore (pTHX) |
|
|
2219 | { |
|
|
2220 | int i; |
|
|
2221 | SV **SP = PL_stack_base + slf_ax; |
|
|
2222 | |
|
|
2223 | PUSHMARK (SP); |
|
|
2224 | |
|
|
2225 | EXTEND (SP, slf_argc + 1); |
|
|
2226 | |
|
|
2227 | for (i = 0; i < slf_argc; ++i) |
|
|
2228 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2229 | |
|
|
2230 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2231 | |
|
|
2232 | RETURNOP (slf_restore.op_first); |
|
|
2233 | } |
|
|
2234 | |
|
|
2235 | static void |
|
|
2236 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2237 | { |
|
|
2238 | SV **arg = (SV **)slf_frame.data; |
|
|
2239 | |
|
|
2240 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2241 | } |
|
|
2242 | |
|
|
2243 | static void |
|
|
2244 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2245 | { |
|
|
2246 | if (items != 2) |
|
|
2247 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2248 | |
|
|
2249 | frame->prepare = slf_prepare_transfer; |
|
|
2250 | frame->check = slf_check_nop; |
|
|
2251 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2252 | } |
|
|
2253 | |
|
|
2254 | static void |
|
|
2255 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2256 | { |
|
|
2257 | frame->prepare = prepare_schedule; |
|
|
2258 | frame->check = slf_check_nop; |
|
|
2259 | } |
|
|
2260 | |
|
|
2261 | static void |
|
|
2262 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2263 | { |
|
|
2264 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2265 | |
|
|
2266 | SvREFCNT_inc_NN (next->hv); |
|
|
2267 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2268 | } |
|
|
2269 | |
|
|
2270 | static void |
|
|
2271 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2272 | { |
|
|
2273 | if (!items) |
|
|
2274 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2275 | |
|
|
2276 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2277 | frame->prepare = slf_prepare_schedule_to; |
|
|
2278 | frame->check = slf_check_nop; |
|
|
2279 | } |
|
|
2280 | |
|
|
2281 | static void |
|
|
2282 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2283 | { |
|
|
2284 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2285 | |
|
|
2286 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2287 | } |
|
|
2288 | |
|
|
2289 | static void |
|
|
2290 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2291 | { |
|
|
2292 | frame->prepare = prepare_cede; |
|
|
2293 | frame->check = slf_check_nop; |
|
|
2294 | } |
|
|
2295 | |
|
|
2296 | static void |
|
|
2297 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2298 | { |
|
|
2299 | frame->prepare = prepare_cede_notself; |
|
|
2300 | frame->check = slf_check_nop; |
|
|
2301 | } |
|
|
2302 | |
|
|
2303 | /* |
|
|
2304 | * these not obviously related functions are all rolled into one |
|
|
2305 | * function to increase chances that they all will call transfer with the same |
|
|
2306 | * stack offset |
|
|
2307 | * SLF stands for "schedule-like-function". |
|
|
2308 | */ |
|
|
2309 | static OP * |
|
|
2310 | pp_slf (pTHX) |
|
|
2311 | { |
|
|
2312 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2313 | |
|
|
2314 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2315 | /* the latter happens when a new coro has been started */ |
|
|
2316 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2317 | if (expect_true (!slf_frame.prepare)) |
|
|
2318 | { |
|
|
2319 | /* first iteration */ |
|
|
2320 | dSP; |
|
|
2321 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2322 | int items = SP - arg; /* args without function object */ |
|
|
2323 | SV *gv = *sp; |
|
|
2324 | |
|
|
2325 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2326 | /* for us, divert to the real entersub */ |
|
|
2327 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2328 | || !GvCV (gv) |
|
|
2329 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2330 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2331 | |
|
|
2332 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2333 | { |
|
|
2334 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2335 | AV *av = GvAV (PL_defgv); |
|
|
2336 | arg = AvARRAY (av); |
|
|
2337 | items = AvFILLp (av) + 1; |
|
|
2338 | } |
|
|
2339 | |
|
|
2340 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2341 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2342 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2343 | |
|
|
2344 | /* pop args */ |
|
|
2345 | SP = PL_stack_base + POPMARK; |
|
|
2346 | |
|
|
2347 | PUTBACK; |
|
|
2348 | } |
|
|
2349 | |
|
|
2350 | /* now that we have a slf_frame, interpret it! */ |
|
|
2351 | /* we use a callback system not to make the code needlessly */ |
|
|
2352 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2353 | |
|
|
2354 | do |
|
|
2355 | { |
|
|
2356 | struct coro_transfer_args ta; |
|
|
2357 | |
|
|
2358 | slf_frame.prepare (aTHX_ &ta); |
|
|
2359 | TRANSFER (ta, 0); |
|
|
2360 | |
|
|
2361 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2362 | } |
|
|
2363 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2364 | |
|
|
2365 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2366 | |
|
|
2367 | /* exception handling */ |
|
|
2368 | if (expect_false (CORO_THROW)) |
|
|
2369 | { |
|
|
2370 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2371 | |
|
|
2372 | CORO_THROW = 0; |
|
|
2373 | sv_setsv (ERRSV, exception); |
|
|
2374 | croak (0); |
|
|
2375 | } |
|
|
2376 | |
|
|
2377 | /* return value handling - mostly like entersub */ |
|
|
2378 | /* make sure we put something on the stack in scalar context */ |
|
|
2379 | if (GIMME_V == G_SCALAR) |
|
|
2380 | { |
|
|
2381 | dSP; |
|
|
2382 | SV **bot = PL_stack_base + checkmark; |
|
|
2383 | |
|
|
2384 | if (sp == bot) /* too few, push undef */ |
|
|
2385 | bot [1] = &PL_sv_undef; |
|
|
2386 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2387 | bot [1] = *sp; |
|
|
2388 | |
|
|
2389 | SP = bot + 1; |
|
|
2390 | |
|
|
2391 | PUTBACK; |
|
|
2392 | } |
|
|
2393 | |
|
|
2394 | return NORMAL; |
|
|
2395 | } |
|
|
2396 | |
|
|
2397 | static void |
|
|
2398 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2399 | { |
|
|
2400 | int i; |
|
|
2401 | SV **arg = PL_stack_base + ax; |
|
|
2402 | int items = PL_stack_sp - arg + 1; |
|
|
2403 | |
|
|
2404 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2405 | |
|
|
2406 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2407 | && PL_op->op_ppaddr != pp_slf) |
|
|
2408 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2409 | |
|
|
2410 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2411 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2412 | slf_cv = cv; |
|
|
2413 | |
|
|
2414 | /* we patch the op, and then re-run the whole call */ |
|
|
2415 | /* we have to put the same argument on the stack for this to work */ |
|
|
2416 | /* and this will be done by pp_restore */ |
|
|
2417 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2418 | slf_restore.op_type = OP_CUSTOM; |
|
|
2419 | slf_restore.op_ppaddr = pp_restore; |
|
|
2420 | slf_restore.op_first = PL_op; |
|
|
2421 | |
|
|
2422 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2423 | |
|
|
2424 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2425 | { |
|
|
2426 | if (items > slf_arga) |
|
|
2427 | { |
|
|
2428 | slf_arga = items; |
|
|
2429 | free (slf_argv); |
|
|
2430 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2431 | } |
|
|
2432 | |
|
|
2433 | slf_argc = items; |
|
|
2434 | |
|
|
2435 | for (i = 0; i < items; ++i) |
|
|
2436 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2437 | } |
|
|
2438 | else |
|
|
2439 | slf_argc = 0; |
|
|
2440 | |
|
|
2441 | PL_op->op_ppaddr = pp_slf; |
|
|
2442 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2443 | |
|
|
2444 | PL_op = (OP *)&slf_restore; |
|
|
2445 | } |
|
|
2446 | |
|
|
2447 | /*****************************************************************************/ |
|
|
2448 | /* dynamic wind */ |
|
|
2449 | |
|
|
2450 | static void |
|
|
2451 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2452 | { |
|
|
2453 | dSP; |
|
|
2454 | |
|
|
2455 | PUSHSTACK; |
|
|
2456 | |
|
|
2457 | PUSHMARK (SP); |
|
|
2458 | PUTBACK; |
|
|
2459 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2460 | SPAGAIN; |
|
|
2461 | |
|
|
2462 | POPSTACK; |
|
|
2463 | } |
|
|
2464 | |
|
|
2465 | static SV * |
|
|
2466 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2467 | { |
|
|
2468 | AV *av = *avp; |
|
|
2469 | SV *res = av_pop (av); |
|
|
2470 | |
|
|
2471 | if (AvFILLp (av) < 0) |
|
|
2472 | { |
|
|
2473 | *avp = 0; |
|
|
2474 | SvREFCNT_dec (av); |
|
|
2475 | } |
|
|
2476 | |
|
|
2477 | return res; |
|
|
2478 | } |
|
|
2479 | |
|
|
2480 | static void |
|
|
2481 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2482 | { |
|
|
2483 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2484 | SvREFCNT_dec (cb); |
|
|
2485 | } |
|
|
2486 | |
|
|
2487 | static void |
|
|
2488 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2489 | { |
|
|
2490 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2491 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2492 | } |
|
|
2493 | |
|
|
2494 | /*****************************************************************************/ |
|
|
2495 | /* PerlIO::cede */ |
|
|
2496 | |
|
|
2497 | typedef struct |
|
|
2498 | { |
|
|
2499 | PerlIOBuf base; |
|
|
2500 | NV next, every; |
|
|
2501 | } PerlIOCede; |
|
|
2502 | |
|
|
2503 | static IV |
|
|
2504 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
2505 | { |
|
|
2506 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2507 | |
|
|
2508 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
2509 | self->next = nvtime () + self->every; |
|
|
2510 | |
|
|
2511 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
2512 | } |
|
|
2513 | |
|
|
2514 | static SV * |
|
|
2515 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
2516 | { |
|
|
2517 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2518 | |
|
|
2519 | return newSVnv (self->every); |
|
|
2520 | } |
|
|
2521 | |
|
|
2522 | static IV |
|
|
2523 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
2524 | { |
|
|
2525 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2526 | double now = nvtime (); |
|
|
2527 | |
|
|
2528 | if (now >= self->next) |
|
|
2529 | { |
|
|
2530 | api_cede (aTHX); |
|
|
2531 | self->next = now + self->every; |
|
|
2532 | } |
|
|
2533 | |
|
|
2534 | return PerlIOBuf_flush (aTHX_ f); |
|
|
2535 | } |
|
|
2536 | |
|
|
2537 | static PerlIO_funcs PerlIO_cede = |
|
|
2538 | { |
|
|
2539 | sizeof(PerlIO_funcs), |
|
|
2540 | "cede", |
|
|
2541 | sizeof(PerlIOCede), |
|
|
2542 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
2543 | PerlIOCede_pushed, |
|
|
2544 | PerlIOBuf_popped, |
|
|
2545 | PerlIOBuf_open, |
|
|
2546 | PerlIOBase_binmode, |
|
|
2547 | PerlIOCede_getarg, |
|
|
2548 | PerlIOBase_fileno, |
|
|
2549 | PerlIOBuf_dup, |
|
|
2550 | PerlIOBuf_read, |
|
|
2551 | PerlIOBuf_unread, |
|
|
2552 | PerlIOBuf_write, |
|
|
2553 | PerlIOBuf_seek, |
|
|
2554 | PerlIOBuf_tell, |
|
|
2555 | PerlIOBuf_close, |
|
|
2556 | PerlIOCede_flush, |
|
|
2557 | PerlIOBuf_fill, |
|
|
2558 | PerlIOBase_eof, |
|
|
2559 | PerlIOBase_error, |
|
|
2560 | PerlIOBase_clearerr, |
|
|
2561 | PerlIOBase_setlinebuf, |
|
|
2562 | PerlIOBuf_get_base, |
|
|
2563 | PerlIOBuf_bufsiz, |
|
|
2564 | PerlIOBuf_get_ptr, |
|
|
2565 | PerlIOBuf_get_cnt, |
|
|
2566 | PerlIOBuf_set_ptrcnt, |
|
|
2567 | }; |
|
|
2568 | |
|
|
2569 | /*****************************************************************************/ |
|
|
2570 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2571 | |
|
|
2572 | static SV * |
|
|
2573 | coro_waitarray_new (pTHX_ int count) |
|
|
2574 | { |
|
|
2575 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2576 | AV *av = newAV (); |
|
|
2577 | SV **ary; |
|
|
2578 | |
|
|
2579 | /* unfortunately, building manually saves memory */ |
|
|
2580 | Newx (ary, 2, SV *); |
|
|
2581 | AvALLOC (av) = ary; |
|
|
2582 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2583 | AvARRAY (av) = ary; |
|
|
2584 | #else |
|
|
2585 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2586 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2587 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2588 | #endif |
|
|
2589 | AvMAX (av) = 1; |
|
|
2590 | AvFILLp (av) = 0; |
|
|
2591 | ary [0] = newSViv (count); |
|
|
2592 | |
|
|
2593 | return newRV_noinc ((SV *)av); |
|
|
2594 | } |
|
|
2595 | |
|
|
2596 | /* semaphore */ |
|
|
2597 | |
|
|
2598 | static void |
|
|
2599 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2600 | { |
|
|
2601 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2602 | IV count = SvIVX (count_sv); |
|
|
2603 | |
|
|
2604 | count += adjust; |
|
|
2605 | SvIVX (count_sv) = count; |
|
|
2606 | |
|
|
2607 | /* now wake up as many waiters as are expected to lock */ |
|
|
2608 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2609 | { |
|
|
2610 | SV *cb; |
|
|
2611 | |
|
|
2612 | /* swap first two elements so we can shift a waiter */ |
|
|
2613 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2614 | AvARRAY (av)[1] = count_sv; |
|
|
2615 | cb = av_shift (av); |
|
|
2616 | |
|
|
2617 | if (SvOBJECT (cb)) |
|
|
2618 | { |
|
|
2619 | api_ready (aTHX_ cb); |
|
|
2620 | --count; |
|
|
2621 | } |
|
|
2622 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2623 | { |
|
|
2624 | dSP; |
|
|
2625 | PUSHMARK (SP); |
|
|
2626 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2627 | PUTBACK; |
|
|
2628 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2629 | } |
|
|
2630 | |
|
|
2631 | SvREFCNT_dec (cb); |
|
|
2632 | } |
|
|
2633 | } |
|
|
2634 | |
|
|
2635 | static void |
|
|
2636 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2637 | { |
|
|
2638 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2639 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2640 | } |
|
|
2641 | |
|
|
2642 | static int |
|
|
2643 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2644 | { |
|
|
2645 | AV *av = (AV *)frame->data; |
|
|
2646 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2647 | |
|
|
2648 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2649 | if (CORO_THROW) |
|
|
2650 | return 0; |
|
|
2651 | else if (SvIVX (count_sv) > 0) |
|
|
2652 | { |
|
|
2653 | SvSTATE_current->on_destroy = 0; |
|
|
2654 | |
|
|
2655 | if (acquire) |
|
|
2656 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2657 | else |
|
|
2658 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2659 | |
|
|
2660 | return 0; |
|
|
2661 | } |
|
|
2662 | else |
|
|
2663 | { |
|
|
2664 | int i; |
|
|
2665 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2666 | /* waiters list and only add us if we aren't in there already */ |
|
|
2667 | /* this avoids some degenerate memory usage cases */ |
|
|
2668 | |
|
|
2669 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2670 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2671 | return 1; |
|
|
2672 | |
|
|
2673 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2674 | return 1; |
|
|
2675 | } |
|
|
2676 | } |
|
|
2677 | |
|
|
2678 | static int |
|
|
2679 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2680 | { |
|
|
2681 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2682 | } |
|
|
2683 | |
|
|
2684 | static int |
|
|
2685 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2686 | { |
|
|
2687 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2688 | } |
|
|
2689 | |
|
|
2690 | static void |
|
|
2691 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2692 | { |
|
|
2693 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2694 | |
|
|
2695 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2696 | { |
|
|
2697 | frame->data = (void *)av; |
|
|
2698 | frame->prepare = prepare_nop; |
|
|
2699 | } |
|
|
2700 | else |
|
|
2701 | { |
|
|
2702 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2703 | |
|
|
2704 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2705 | frame->prepare = prepare_schedule; |
|
|
2706 | |
|
|
2707 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2708 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2709 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2710 | } |
|
|
2711 | } |
|
|
2712 | |
|
|
2713 | static void |
|
|
2714 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2715 | { |
|
|
2716 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2717 | frame->check = slf_check_semaphore_down; |
|
|
2718 | } |
|
|
2719 | |
|
|
2720 | static void |
|
|
2721 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2722 | { |
|
|
2723 | if (items >= 2) |
|
|
2724 | { |
|
|
2725 | /* callback form */ |
|
|
2726 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2727 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2728 | |
|
|
2729 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
2730 | |
|
|
2731 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2732 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2733 | |
|
|
2734 | frame->prepare = prepare_nop; |
|
|
2735 | frame->check = slf_check_nop; |
|
|
2736 | } |
|
|
2737 | else |
|
|
2738 | { |
|
|
2739 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2740 | frame->check = slf_check_semaphore_wait; |
|
|
2741 | } |
|
|
2742 | } |
|
|
2743 | |
|
|
2744 | /* signal */ |
|
|
2745 | |
|
|
2746 | static void |
|
|
2747 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2748 | { |
|
|
2749 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2750 | |
|
|
2751 | /* now signal count waiters */ |
|
|
2752 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2753 | { |
|
|
2754 | SV *cb; |
|
|
2755 | |
|
|
2756 | /* swap first two elements so we can shift a waiter */ |
|
|
2757 | cb = AvARRAY (av)[0]; |
|
|
2758 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2759 | AvARRAY (av)[1] = cb; |
|
|
2760 | |
|
|
2761 | cb = av_shift (av); |
|
|
2762 | |
|
|
2763 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
2764 | { |
|
|
2765 | dSP; |
|
|
2766 | PUSHMARK (SP); |
|
|
2767 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2768 | PUTBACK; |
|
|
2769 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2770 | } |
|
|
2771 | else |
|
|
2772 | { |
|
|
2773 | api_ready (aTHX_ cb); |
|
|
2774 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2775 | } |
|
|
2776 | |
|
|
2777 | SvREFCNT_dec (cb); |
|
|
2778 | |
|
|
2779 | --count; |
|
|
2780 | } |
|
|
2781 | } |
|
|
2782 | |
|
|
2783 | static int |
|
|
2784 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2785 | { |
|
|
2786 | /* if we are about to throw, also stop waiting */ |
|
|
2787 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2788 | } |
|
|
2789 | |
|
|
2790 | static void |
|
|
2791 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2792 | { |
|
|
2793 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2794 | |
|
|
2795 | if (items >= 2) |
|
|
2796 | { |
|
|
2797 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2798 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
2799 | |
|
|
2800 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2801 | coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ |
|
|
2802 | |
|
|
2803 | frame->prepare = prepare_nop; |
|
|
2804 | frame->check = slf_check_nop; |
|
|
2805 | } |
|
|
2806 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
2807 | { |
|
|
2808 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2809 | frame->prepare = prepare_nop; |
|
|
2810 | frame->check = slf_check_nop; |
|
|
2811 | } |
|
|
2812 | else |
|
|
2813 | { |
|
|
2814 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
2815 | |
|
|
2816 | av_push (av, waiter); |
|
|
2817 | |
|
|
2818 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2819 | frame->prepare = prepare_schedule; |
|
|
2820 | frame->check = slf_check_signal_wait; |
|
|
2821 | } |
|
|
2822 | } |
|
|
2823 | |
|
|
2824 | /*****************************************************************************/ |
|
|
2825 | /* Coro::AIO */ |
|
|
2826 | |
|
|
2827 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2828 | |
|
|
2829 | /* helper storage struct */ |
|
|
2830 | struct io_state |
|
|
2831 | { |
|
|
2832 | int errorno; |
|
|
2833 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2834 | int laststatval; |
|
|
2835 | Stat_t statcache; |
|
|
2836 | }; |
|
|
2837 | |
|
|
2838 | static void |
|
|
2839 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2840 | { |
|
|
2841 | dXSARGS; |
|
|
2842 | AV *state = (AV *)GENSUB_ARG; |
|
|
2843 | SV *coro = av_pop (state); |
|
|
2844 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2845 | |
|
|
2846 | av_extend (state, items - 1); |
|
|
2847 | |
|
|
2848 | sv_upgrade (data_sv, SVt_PV); |
|
|
2849 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2850 | SvPOK_only (data_sv); |
|
|
2851 | |
|
|
2852 | { |
|
|
2853 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2854 | |
|
|
2855 | data->errorno = errno; |
|
|
2856 | data->laststype = PL_laststype; |
|
|
2857 | data->laststatval = PL_laststatval; |
|
|
2858 | data->statcache = PL_statcache; |
|
|
2859 | } |
|
|
2860 | |
|
|
2861 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2862 | { |
|
|
2863 | int i; |
|
|
2864 | |
|
|
2865 | for (i = 0; i < items; ++i) |
|
|
2866 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2867 | } |
|
|
2868 | |
|
|
2869 | av_push (state, data_sv); |
|
|
2870 | |
|
|
2871 | api_ready (aTHX_ coro); |
|
|
2872 | SvREFCNT_dec (coro); |
|
|
2873 | SvREFCNT_dec ((AV *)state); |
|
|
2874 | } |
|
|
2875 | |
|
|
2876 | static int |
|
|
2877 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2878 | { |
|
|
2879 | AV *state = (AV *)frame->data; |
|
|
2880 | |
|
|
2881 | /* if we are about to throw, return early */ |
|
|
2882 | /* this does not cancel the aio request, but at least */ |
|
|
2883 | /* it quickly returns */ |
|
|
2884 | if (CORO_THROW) |
|
|
2885 | return 0; |
|
|
2886 | |
|
|
2887 | /* one element that is an RV? repeat! */ |
|
|
2888 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2889 | return 1; |
|
|
2890 | |
|
|
2891 | /* restore status */ |
|
|
2892 | { |
|
|
2893 | SV *data_sv = av_pop (state); |
|
|
2894 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2895 | |
|
|
2896 | errno = data->errorno; |
|
|
2897 | PL_laststype = data->laststype; |
|
|
2898 | PL_laststatval = data->laststatval; |
|
|
2899 | PL_statcache = data->statcache; |
|
|
2900 | |
|
|
2901 | SvREFCNT_dec (data_sv); |
|
|
2902 | } |
|
|
2903 | |
|
|
2904 | /* push result values */ |
|
|
2905 | { |
|
|
2906 | dSP; |
|
|
2907 | int i; |
|
|
2908 | |
|
|
2909 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2910 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2911 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2912 | |
|
|
2913 | PUTBACK; |
|
|
2914 | } |
|
|
2915 | |
|
|
2916 | return 0; |
|
|
2917 | } |
|
|
2918 | |
|
|
2919 | static void |
|
|
2920 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2921 | { |
|
|
2922 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2923 | SV *coro_hv = SvRV (coro_current); |
|
|
2924 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2925 | |
|
|
2926 | /* put our coroutine id on the state arg */ |
|
|
2927 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2928 | |
|
|
2929 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2930 | if (coro->prio) |
|
|
2931 | { |
|
|
2932 | dSP; |
|
|
2933 | |
|
|
2934 | static SV *prio_cv; |
|
|
2935 | static SV *prio_sv; |
|
|
2936 | |
|
|
2937 | if (expect_false (!prio_cv)) |
|
|
2938 | { |
|
|
2939 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2940 | prio_sv = newSViv (0); |
|
|
2941 | } |
|
|
2942 | |
|
|
2943 | PUSHMARK (SP); |
|
|
2944 | sv_setiv (prio_sv, coro->prio); |
|
|
2945 | XPUSHs (prio_sv); |
|
|
2946 | |
|
|
2947 | PUTBACK; |
|
|
2948 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2949 | } |
|
|
2950 | |
|
|
2951 | /* now call the original request */ |
|
|
2952 | { |
|
|
2953 | dSP; |
|
|
2954 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2955 | int i; |
|
|
2956 | |
|
|
2957 | PUSHMARK (SP); |
|
|
2958 | |
|
|
2959 | /* first push all args to the stack */ |
|
|
2960 | EXTEND (SP, items + 1); |
|
|
2961 | |
|
|
2962 | for (i = 0; i < items; ++i) |
|
|
2963 | PUSHs (arg [i]); |
|
|
2964 | |
|
|
2965 | /* now push the callback closure */ |
|
|
2966 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2967 | |
|
|
2968 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2969 | PUTBACK; |
|
|
2970 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2971 | } |
|
|
2972 | |
|
|
2973 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2974 | frame->data = (void *)state; |
|
|
2975 | frame->prepare = prepare_schedule; |
|
|
2976 | frame->check = slf_check_aio_req; |
|
|
2977 | } |
|
|
2978 | |
|
|
2979 | static void |
|
|
2980 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2981 | { |
|
|
2982 | dXSARGS; |
|
|
2983 | |
|
|
2984 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2985 | |
|
|
2986 | XSRETURN_EMPTY; |
|
|
2987 | } |
|
|
2988 | |
|
|
2989 | /*****************************************************************************/ |
|
|
2990 | |
|
|
2991 | #if CORO_CLONE |
|
|
2992 | # include "clone.c" |
|
|
2993 | #endif |
|
|
2994 | |
1551 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2995 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1552 | |
2996 | |
1553 | PROTOTYPES: DISABLE |
2997 | PROTOTYPES: DISABLE |
1554 | |
2998 | |
1555 | BOOT: |
2999 | BOOT: |
1556 | { |
3000 | { |
1557 | #ifdef USE_ITHREADS |
3001 | #ifdef USE_ITHREADS |
1558 | MUTEX_INIT (&coro_mutex); |
3002 | # if CORO_PTHREAD |
|
|
3003 | coro_thx = PERL_GET_CONTEXT; |
|
|
3004 | # endif |
1559 | #endif |
3005 | #endif |
1560 | BOOT_PAGESIZE; |
3006 | BOOT_PAGESIZE; |
|
|
3007 | |
|
|
3008 | cctx_current = cctx_new_empty (); |
1561 | |
3009 | |
1562 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
3010 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1563 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
3011 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1564 | |
3012 | |
1565 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; |
3013 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
1566 | PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
3014 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
1567 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; |
3015 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
1568 | PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
1569 | |
3016 | |
1570 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
3017 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
1571 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
3018 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
1572 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
3019 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1573 | |
3020 | |
… | |
… | |
1582 | main_top_env = PL_top_env; |
3029 | main_top_env = PL_top_env; |
1583 | |
3030 | |
1584 | while (main_top_env->je_prev) |
3031 | while (main_top_env->je_prev) |
1585 | main_top_env = main_top_env->je_prev; |
3032 | main_top_env = main_top_env->je_prev; |
1586 | |
3033 | |
|
|
3034 | { |
|
|
3035 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
3036 | |
|
|
3037 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
3038 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
3039 | |
|
|
3040 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
3041 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
3042 | } |
|
|
3043 | |
1587 | coroapi.ver = CORO_API_VERSION; |
3044 | coroapi.ver = CORO_API_VERSION; |
1588 | coroapi.rev = CORO_API_REVISION; |
3045 | coroapi.rev = CORO_API_REVISION; |
|
|
3046 | |
1589 | coroapi.transfer = api_transfer; |
3047 | coroapi.transfer = api_transfer; |
1590 | |
3048 | |
|
|
3049 | coroapi.sv_state = SvSTATE_; |
|
|
3050 | coroapi.execute_slf = api_execute_slf; |
|
|
3051 | coroapi.prepare_nop = prepare_nop; |
|
|
3052 | coroapi.prepare_schedule = prepare_schedule; |
|
|
3053 | coroapi.prepare_cede = prepare_cede; |
|
|
3054 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
3055 | |
|
|
3056 | { |
|
|
3057 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
3058 | |
|
|
3059 | if (!svp) croak ("Time::HiRes is required"); |
|
|
3060 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
3061 | |
|
|
3062 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
3063 | |
|
|
3064 | svp = hv_fetch (PL_modglobal, "Time::U2time", 12, 0); |
|
|
3065 | u2time = INT2PTR (void (*)(pTHX_ UV ret[2]), SvIV (*svp)); |
|
|
3066 | } |
|
|
3067 | |
1591 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
3068 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
1592 | } |
3069 | } |
1593 | |
3070 | |
1594 | SV * |
3071 | SV * |
1595 | new (char *klass, ...) |
3072 | new (char *klass, ...) |
|
|
3073 | ALIAS: |
|
|
3074 | Coro::new = 1 |
1596 | CODE: |
3075 | CODE: |
1597 | { |
3076 | { |
1598 | struct coro *coro; |
3077 | struct coro *coro; |
1599 | MAGIC *mg; |
3078 | MAGIC *mg; |
1600 | HV *hv; |
3079 | HV *hv; |
|
|
3080 | CV *cb; |
1601 | int i; |
3081 | int i; |
|
|
3082 | |
|
|
3083 | if (items > 1) |
|
|
3084 | { |
|
|
3085 | cb = coro_sv_2cv (aTHX_ ST (1)); |
|
|
3086 | |
|
|
3087 | if (!ix) |
|
|
3088 | { |
|
|
3089 | if (CvISXSUB (cb)) |
|
|
3090 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3091 | |
|
|
3092 | if (!CvROOT (cb)) |
|
|
3093 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3094 | } |
|
|
3095 | } |
1602 | |
3096 | |
1603 | Newz (0, coro, 1, struct coro); |
3097 | Newz (0, coro, 1, struct coro); |
1604 | coro->args = newAV (); |
3098 | coro->args = newAV (); |
1605 | coro->flags = CF_NEW; |
3099 | coro->flags = CF_NEW; |
1606 | |
3100 | |
… | |
… | |
1611 | coro->hv = hv = newHV (); |
3105 | coro->hv = hv = newHV (); |
1612 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
3106 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
1613 | mg->mg_flags |= MGf_DUP; |
3107 | mg->mg_flags |= MGf_DUP; |
1614 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
3108 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1615 | |
3109 | |
|
|
3110 | if (items > 1) |
|
|
3111 | { |
1616 | av_extend (coro->args, items - 1); |
3112 | av_extend (coro->args, items - 1 + ix - 1); |
|
|
3113 | |
|
|
3114 | if (ix) |
|
|
3115 | { |
|
|
3116 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3117 | cb = cv_coro_run; |
|
|
3118 | } |
|
|
3119 | |
|
|
3120 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3121 | |
1617 | for (i = 1; i < items; i++) |
3122 | for (i = 2; i < items; i++) |
1618 | av_push (coro->args, newSVsv (ST (i))); |
3123 | av_push (coro->args, newSVsv (ST (i))); |
|
|
3124 | } |
1619 | } |
3125 | } |
1620 | OUTPUT: |
3126 | OUTPUT: |
1621 | RETVAL |
3127 | RETVAL |
1622 | |
3128 | |
1623 | # these not obviously related functions are all rolled into the same xs |
|
|
1624 | # function to increase chances that they all will call transfer with the same |
|
|
1625 | # stack offset |
|
|
1626 | void |
3129 | void |
1627 | _set_stacklevel (...) |
3130 | transfer (...) |
1628 | ALIAS: |
3131 | PROTOTYPE: $$ |
1629 | Coro::State::transfer = 1 |
3132 | CODE: |
1630 | Coro::schedule = 2 |
3133 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1631 | Coro::cede = 3 |
|
|
1632 | Coro::cede_notself = 4 |
|
|
1633 | CODE: |
|
|
1634 | { |
|
|
1635 | struct transfer_args ta; |
|
|
1636 | |
|
|
1637 | PUTBACK; |
|
|
1638 | switch (ix) |
|
|
1639 | { |
|
|
1640 | case 0: |
|
|
1641 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1642 | ta.next = 0; |
|
|
1643 | break; |
|
|
1644 | |
|
|
1645 | case 1: |
|
|
1646 | if (items != 2) |
|
|
1647 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1648 | |
|
|
1649 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1650 | break; |
|
|
1651 | |
|
|
1652 | case 2: |
|
|
1653 | prepare_schedule (aTHX_ &ta); |
|
|
1654 | break; |
|
|
1655 | |
|
|
1656 | case 3: |
|
|
1657 | prepare_cede (aTHX_ &ta); |
|
|
1658 | break; |
|
|
1659 | |
|
|
1660 | case 4: |
|
|
1661 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1662 | XSRETURN_EMPTY; |
|
|
1663 | |
|
|
1664 | break; |
|
|
1665 | } |
|
|
1666 | SPAGAIN; |
|
|
1667 | |
|
|
1668 | BARRIER; |
|
|
1669 | PUTBACK; |
|
|
1670 | TRANSFER (ta, 0); |
|
|
1671 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1672 | /* be extra careful not to ever do anything after TRANSFER */ |
|
|
1673 | } |
|
|
1674 | |
3134 | |
1675 | bool |
3135 | bool |
1676 | _destroy (SV *coro_sv) |
3136 | _destroy (SV *coro_sv) |
1677 | CODE: |
3137 | CODE: |
1678 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
3138 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1679 | OUTPUT: |
3139 | OUTPUT: |
1680 | RETVAL |
3140 | RETVAL |
1681 | |
3141 | |
1682 | void |
3142 | void |
1683 | _exit (code) |
3143 | _exit (int code) |
1684 | int code |
|
|
1685 | PROTOTYPE: $ |
3144 | PROTOTYPE: $ |
1686 | CODE: |
3145 | CODE: |
1687 | _exit (code); |
3146 | _exit (code); |
1688 | |
3147 | |
|
|
3148 | SV * |
|
|
3149 | clone (Coro::State coro) |
|
|
3150 | CODE: |
|
|
3151 | { |
|
|
3152 | #if CORO_CLONE |
|
|
3153 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3154 | MAGIC *mg; |
|
|
3155 | /* TODO: too much duplication */ |
|
|
3156 | ncoro->hv = newHV (); |
|
|
3157 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3158 | mg->mg_flags |= MGf_DUP; |
|
|
3159 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3160 | #else |
|
|
3161 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3162 | #endif |
|
|
3163 | } |
|
|
3164 | OUTPUT: |
|
|
3165 | RETVAL |
|
|
3166 | |
1689 | int |
3167 | int |
1690 | cctx_stacksize (int new_stacksize = 0) |
3168 | cctx_stacksize (int new_stacksize = 0) |
|
|
3169 | PROTOTYPE: ;$ |
1691 | CODE: |
3170 | CODE: |
1692 | RETVAL = coro_stacksize; |
3171 | RETVAL = cctx_stacksize; |
1693 | if (new_stacksize) |
3172 | if (new_stacksize) |
|
|
3173 | { |
1694 | coro_stacksize = new_stacksize; |
3174 | cctx_stacksize = new_stacksize; |
|
|
3175 | ++cctx_gen; |
|
|
3176 | } |
1695 | OUTPUT: |
3177 | OUTPUT: |
1696 | RETVAL |
3178 | RETVAL |
1697 | |
3179 | |
1698 | int |
3180 | int |
|
|
3181 | cctx_max_idle (int max_idle = 0) |
|
|
3182 | PROTOTYPE: ;$ |
|
|
3183 | CODE: |
|
|
3184 | RETVAL = cctx_max_idle; |
|
|
3185 | if (max_idle > 1) |
|
|
3186 | cctx_max_idle = max_idle; |
|
|
3187 | OUTPUT: |
|
|
3188 | RETVAL |
|
|
3189 | |
|
|
3190 | int |
1699 | cctx_count () |
3191 | cctx_count () |
|
|
3192 | PROTOTYPE: |
1700 | CODE: |
3193 | CODE: |
1701 | RETVAL = cctx_count; |
3194 | RETVAL = cctx_count; |
1702 | OUTPUT: |
3195 | OUTPUT: |
1703 | RETVAL |
3196 | RETVAL |
1704 | |
3197 | |
1705 | int |
3198 | int |
1706 | cctx_idle () |
3199 | cctx_idle () |
|
|
3200 | PROTOTYPE: |
1707 | CODE: |
3201 | CODE: |
1708 | RETVAL = cctx_idle; |
3202 | RETVAL = cctx_idle; |
1709 | OUTPUT: |
3203 | OUTPUT: |
1710 | RETVAL |
3204 | RETVAL |
1711 | |
3205 | |
1712 | void |
3206 | void |
1713 | list () |
3207 | list () |
|
|
3208 | PROTOTYPE: |
1714 | PPCODE: |
3209 | PPCODE: |
1715 | { |
3210 | { |
1716 | struct coro *coro; |
3211 | struct coro *coro; |
1717 | for (coro = coro_first; coro; coro = coro->next) |
3212 | for (coro = coro_first; coro; coro = coro->next) |
1718 | if (coro->hv) |
3213 | if (coro->hv) |
… | |
… | |
1723 | call (Coro::State coro, SV *coderef) |
3218 | call (Coro::State coro, SV *coderef) |
1724 | ALIAS: |
3219 | ALIAS: |
1725 | eval = 1 |
3220 | eval = 1 |
1726 | CODE: |
3221 | CODE: |
1727 | { |
3222 | { |
1728 | if (coro->mainstack) |
3223 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1729 | { |
3224 | { |
1730 | struct coro temp; |
3225 | struct coro *current = SvSTATE_current; |
1731 | |
3226 | |
1732 | if (!(coro->flags & CF_RUNNING)) |
3227 | if (current != coro) |
1733 | { |
3228 | { |
1734 | PUTBACK; |
3229 | PUTBACK; |
1735 | save_perl (aTHX_ &temp); |
3230 | save_perl (aTHX_ current); |
1736 | load_perl (aTHX_ coro); |
3231 | load_perl (aTHX_ coro); |
|
|
3232 | SPAGAIN; |
1737 | } |
3233 | } |
1738 | |
3234 | |
1739 | { |
|
|
1740 | dSP; |
|
|
1741 | ENTER; |
|
|
1742 | SAVETMPS; |
|
|
1743 | PUTBACK; |
|
|
1744 | PUSHSTACK; |
3235 | PUSHSTACK; |
|
|
3236 | |
1745 | PUSHMARK (SP); |
3237 | PUSHMARK (SP); |
|
|
3238 | PUTBACK; |
1746 | |
3239 | |
1747 | if (ix) |
3240 | if (ix) |
1748 | eval_sv (coderef, 0); |
3241 | eval_sv (coderef, 0); |
1749 | else |
3242 | else |
1750 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3243 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1751 | |
3244 | |
1752 | POPSTACK; |
3245 | POPSTACK; |
1753 | SPAGAIN; |
3246 | SPAGAIN; |
1754 | FREETMPS; |
|
|
1755 | LEAVE; |
|
|
1756 | PUTBACK; |
|
|
1757 | } |
|
|
1758 | |
3247 | |
1759 | if (!(coro->flags & CF_RUNNING)) |
3248 | if (current != coro) |
1760 | { |
3249 | { |
|
|
3250 | PUTBACK; |
1761 | save_perl (aTHX_ coro); |
3251 | save_perl (aTHX_ coro); |
1762 | load_perl (aTHX_ &temp); |
3252 | load_perl (aTHX_ current); |
1763 | SPAGAIN; |
3253 | SPAGAIN; |
1764 | } |
3254 | } |
1765 | } |
3255 | } |
1766 | } |
3256 | } |
1767 | |
3257 | |
… | |
… | |
1771 | ALIAS: |
3261 | ALIAS: |
1772 | is_ready = CF_READY |
3262 | is_ready = CF_READY |
1773 | is_running = CF_RUNNING |
3263 | is_running = CF_RUNNING |
1774 | is_new = CF_NEW |
3264 | is_new = CF_NEW |
1775 | is_destroyed = CF_DESTROYED |
3265 | is_destroyed = CF_DESTROYED |
|
|
3266 | is_suspended = CF_SUSPENDED |
1776 | CODE: |
3267 | CODE: |
1777 | RETVAL = boolSV (coro->flags & ix); |
3268 | RETVAL = boolSV (coro->flags & ix); |
1778 | OUTPUT: |
3269 | OUTPUT: |
1779 | RETVAL |
3270 | RETVAL |
1780 | |
3271 | |
1781 | void |
3272 | void |
|
|
3273 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
3274 | PROTOTYPE: $;$ |
|
|
3275 | CODE: |
|
|
3276 | { |
|
|
3277 | struct coro *current = SvSTATE_current; |
|
|
3278 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
|
|
3279 | SvREFCNT_dec (*throwp); |
|
|
3280 | SvGETMAGIC (throw); |
|
|
3281 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
3282 | } |
|
|
3283 | |
|
|
3284 | void |
1782 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3285 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3286 | PROTOTYPE: $;$ |
|
|
3287 | C_ARGS: aTHX_ coro, flags |
1783 | |
3288 | |
1784 | SV * |
3289 | SV * |
1785 | has_stack (Coro::State coro) |
3290 | has_cctx (Coro::State coro) |
1786 | PROTOTYPE: $ |
3291 | PROTOTYPE: $ |
1787 | CODE: |
3292 | CODE: |
1788 | RETVAL = boolSV (!!coro->cctx); |
3293 | /* maybe manage the running flag differently */ |
|
|
3294 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
1789 | OUTPUT: |
3295 | OUTPUT: |
1790 | RETVAL |
3296 | RETVAL |
1791 | |
3297 | |
1792 | int |
3298 | int |
1793 | is_traced (Coro::State coro) |
3299 | is_traced (Coro::State coro) |
… | |
… | |
1795 | CODE: |
3301 | CODE: |
1796 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
3302 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1797 | OUTPUT: |
3303 | OUTPUT: |
1798 | RETVAL |
3304 | RETVAL |
1799 | |
3305 | |
1800 | IV |
3306 | UV |
1801 | rss (Coro::State coro) |
3307 | rss (Coro::State coro) |
1802 | PROTOTYPE: $ |
3308 | PROTOTYPE: $ |
1803 | ALIAS: |
3309 | ALIAS: |
1804 | usecount = 1 |
3310 | usecount = 1 |
1805 | CODE: |
3311 | CODE: |
… | |
… | |
1811 | OUTPUT: |
3317 | OUTPUT: |
1812 | RETVAL |
3318 | RETVAL |
1813 | |
3319 | |
1814 | void |
3320 | void |
1815 | force_cctx () |
3321 | force_cctx () |
|
|
3322 | PROTOTYPE: |
1816 | CODE: |
3323 | CODE: |
|
|
3324 | cctx_current->idle_sp = 0; |
|
|
3325 | |
|
|
3326 | void |
|
|
3327 | swap_defsv (Coro::State self) |
|
|
3328 | PROTOTYPE: $ |
|
|
3329 | ALIAS: |
|
|
3330 | swap_defav = 1 |
|
|
3331 | CODE: |
|
|
3332 | if (!self->slot) |
|
|
3333 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
3334 | else |
|
|
3335 | { |
|
|
3336 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
3337 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
3338 | |
|
|
3339 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
3340 | } |
|
|
3341 | |
|
|
3342 | void |
|
|
3343 | cancel (Coro::State self) |
|
|
3344 | CODE: |
|
|
3345 | coro_state_destroy (aTHX_ self); |
|
|
3346 | coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */ |
|
|
3347 | |
|
|
3348 | |
|
|
3349 | SV * |
|
|
3350 | enable_times (int enabled = enable_times) |
|
|
3351 | CODE: |
|
|
3352 | { |
|
|
3353 | RETVAL = boolSV (enable_times); |
|
|
3354 | |
|
|
3355 | if (enabled != enable_times) |
|
|
3356 | { |
|
|
3357 | enable_times = enabled; |
|
|
3358 | |
|
|
3359 | coro_times_update (); |
|
|
3360 | (enabled ? coro_times_sub : coro_times_add)(SvSTATE (coro_current)); |
|
|
3361 | } |
|
|
3362 | } |
|
|
3363 | OUTPUT: |
|
|
3364 | RETVAL |
|
|
3365 | |
|
|
3366 | void |
|
|
3367 | times (Coro::State self) |
|
|
3368 | PPCODE: |
|
|
3369 | { |
1817 | struct coro *coro = SvSTATE (coro_current); |
3370 | struct coro *current = SvSTATE (coro_current); |
1818 | coro->cctx->idle_sp = 0; |
3371 | |
|
|
3372 | if (expect_false (current == self)) |
|
|
3373 | { |
|
|
3374 | coro_times_update (); |
|
|
3375 | coro_times_add (SvSTATE (coro_current)); |
|
|
3376 | } |
|
|
3377 | |
|
|
3378 | EXTEND (SP, 2); |
|
|
3379 | PUSHs (sv_2mortal (newSVnv (self->t_real [0] + self->t_real [1] * 1e-9))); |
|
|
3380 | PUSHs (sv_2mortal (newSVnv (self->t_cpu [0] + self->t_cpu [1] * 1e-9))); |
|
|
3381 | |
|
|
3382 | if (expect_false (current == self)) |
|
|
3383 | coro_times_sub (SvSTATE (coro_current)); |
|
|
3384 | } |
1819 | |
3385 | |
1820 | MODULE = Coro::State PACKAGE = Coro |
3386 | MODULE = Coro::State PACKAGE = Coro |
1821 | |
3387 | |
1822 | BOOT: |
3388 | BOOT: |
1823 | { |
3389 | { |
1824 | int i; |
|
|
1825 | |
|
|
1826 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3390 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
1827 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3391 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
3392 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
3393 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
|
|
3394 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
1828 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
3395 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3396 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3397 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3398 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
1829 | |
3399 | |
1830 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3400 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
1831 | SvREADONLY_on (coro_current); |
3401 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3402 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3403 | cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); |
1832 | |
3404 | |
1833 | coro_stash = gv_stashpv ("Coro", TRUE); |
3405 | coro_stash = gv_stashpv ("Coro", TRUE); |
1834 | |
3406 | |
1835 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3407 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
1836 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3408 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
1837 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3409 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
1838 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3410 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
1839 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3411 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
1840 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3412 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
1841 | |
|
|
1842 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
1843 | coro_ready[i] = newAV (); |
|
|
1844 | |
3413 | |
1845 | { |
3414 | { |
1846 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
3415 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1847 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
1848 | |
3416 | |
1849 | coroapi.schedule = api_schedule; |
3417 | coroapi.schedule = api_schedule; |
|
|
3418 | coroapi.schedule_to = api_schedule_to; |
1850 | coroapi.cede = api_cede; |
3419 | coroapi.cede = api_cede; |
1851 | coroapi.cede_notself = api_cede_notself; |
3420 | coroapi.cede_notself = api_cede_notself; |
1852 | coroapi.ready = api_ready; |
3421 | coroapi.ready = api_ready; |
1853 | coroapi.is_ready = api_is_ready; |
3422 | coroapi.is_ready = api_is_ready; |
1854 | coroapi.nready = &coro_nready; |
3423 | coroapi.nready = coro_nready; |
1855 | coroapi.current = coro_current; |
3424 | coroapi.current = coro_current; |
1856 | |
3425 | |
1857 | GCoroAPI = &coroapi; |
3426 | /*GCoroAPI = &coroapi;*/ |
1858 | sv_setiv (sv, (IV)&coroapi); |
3427 | sv_setiv (sv, (IV)&coroapi); |
1859 | SvREADONLY_on (sv); |
3428 | SvREADONLY_on (sv); |
1860 | } |
3429 | } |
1861 | } |
3430 | } |
|
|
3431 | |
|
|
3432 | void |
|
|
3433 | terminate (...) |
|
|
3434 | CODE: |
|
|
3435 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3436 | |
|
|
3437 | void |
|
|
3438 | schedule (...) |
|
|
3439 | CODE: |
|
|
3440 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3441 | |
|
|
3442 | void |
|
|
3443 | schedule_to (...) |
|
|
3444 | CODE: |
|
|
3445 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3446 | |
|
|
3447 | void |
|
|
3448 | cede_to (...) |
|
|
3449 | CODE: |
|
|
3450 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3451 | |
|
|
3452 | void |
|
|
3453 | cede (...) |
|
|
3454 | CODE: |
|
|
3455 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3456 | |
|
|
3457 | void |
|
|
3458 | cede_notself (...) |
|
|
3459 | CODE: |
|
|
3460 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1862 | |
3461 | |
1863 | void |
3462 | void |
1864 | _set_current (SV *current) |
3463 | _set_current (SV *current) |
1865 | PROTOTYPE: $ |
3464 | PROTOTYPE: $ |
1866 | CODE: |
3465 | CODE: |
1867 | SvREFCNT_dec (SvRV (coro_current)); |
3466 | SvREFCNT_dec (SvRV (coro_current)); |
1868 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
3467 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
3468 | |
|
|
3469 | void |
|
|
3470 | _set_readyhook (SV *hook) |
|
|
3471 | PROTOTYPE: $ |
|
|
3472 | CODE: |
|
|
3473 | SvREFCNT_dec (coro_readyhook); |
|
|
3474 | SvGETMAGIC (hook); |
|
|
3475 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
1869 | |
3476 | |
1870 | int |
3477 | int |
1871 | prio (Coro::State coro, int newprio = 0) |
3478 | prio (Coro::State coro, int newprio = 0) |
|
|
3479 | PROTOTYPE: $;$ |
1872 | ALIAS: |
3480 | ALIAS: |
1873 | nice = 1 |
3481 | nice = 1 |
1874 | CODE: |
3482 | CODE: |
1875 | { |
3483 | { |
1876 | RETVAL = coro->prio; |
3484 | RETVAL = coro->prio; |
… | |
… | |
1878 | if (items > 1) |
3486 | if (items > 1) |
1879 | { |
3487 | { |
1880 | if (ix) |
3488 | if (ix) |
1881 | newprio = coro->prio - newprio; |
3489 | newprio = coro->prio - newprio; |
1882 | |
3490 | |
1883 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
3491 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
1884 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
3492 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
1885 | |
3493 | |
1886 | coro->prio = newprio; |
3494 | coro->prio = newprio; |
1887 | } |
3495 | } |
1888 | } |
3496 | } |
1889 | OUTPUT: |
3497 | OUTPUT: |
… | |
… | |
1891 | |
3499 | |
1892 | SV * |
3500 | SV * |
1893 | ready (SV *self) |
3501 | ready (SV *self) |
1894 | PROTOTYPE: $ |
3502 | PROTOTYPE: $ |
1895 | CODE: |
3503 | CODE: |
1896 | RETVAL = boolSV (api_ready (self)); |
3504 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1897 | OUTPUT: |
3505 | OUTPUT: |
1898 | RETVAL |
3506 | RETVAL |
1899 | |
3507 | |
1900 | int |
3508 | int |
1901 | nready (...) |
3509 | nready (...) |
… | |
… | |
1904 | RETVAL = coro_nready; |
3512 | RETVAL = coro_nready; |
1905 | OUTPUT: |
3513 | OUTPUT: |
1906 | RETVAL |
3514 | RETVAL |
1907 | |
3515 | |
1908 | void |
3516 | void |
1909 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3517 | suspend (Coro::State self) |
1910 | PROTOTYPE: $;$ |
3518 | PROTOTYPE: $ |
|
|
3519 | CODE: |
|
|
3520 | self->flags |= CF_SUSPENDED; |
|
|
3521 | |
|
|
3522 | void |
|
|
3523 | resume (Coro::State self) |
|
|
3524 | PROTOTYPE: $ |
|
|
3525 | CODE: |
|
|
3526 | self->flags &= ~CF_SUSPENDED; |
|
|
3527 | |
|
|
3528 | void |
|
|
3529 | _pool_handler (...) |
|
|
3530 | CODE: |
|
|
3531 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
3532 | |
|
|
3533 | void |
|
|
3534 | async_pool (SV *cv, ...) |
|
|
3535 | PROTOTYPE: &@ |
|
|
3536 | PPCODE: |
|
|
3537 | { |
|
|
3538 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3539 | AV *av = newAV (); |
|
|
3540 | SV *cb = ST (0); |
|
|
3541 | int i; |
|
|
3542 | |
|
|
3543 | av_extend (av, items - 2); |
|
|
3544 | for (i = 1; i < items; ++i) |
|
|
3545 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
3546 | |
|
|
3547 | if ((SV *)hv == &PL_sv_undef) |
|
|
3548 | { |
|
|
3549 | PUSHMARK (SP); |
|
|
3550 | EXTEND (SP, 2); |
|
|
3551 | PUSHs (sv_Coro); |
|
|
3552 | PUSHs ((SV *)cv_pool_handler); |
|
|
3553 | PUTBACK; |
|
|
3554 | call_sv ((SV *)cv_coro_state_new, G_SCALAR); |
|
|
3555 | SPAGAIN; |
|
|
3556 | |
|
|
3557 | hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); |
|
|
3558 | } |
|
|
3559 | |
|
|
3560 | { |
|
|
3561 | struct coro *coro = SvSTATE_hv (hv); |
|
|
3562 | |
|
|
3563 | assert (!coro->invoke_cb); |
|
|
3564 | assert (!coro->invoke_av); |
|
|
3565 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3566 | coro->invoke_av = av; |
|
|
3567 | } |
|
|
3568 | |
|
|
3569 | api_ready (aTHX_ (SV *)hv); |
|
|
3570 | |
|
|
3571 | if (GIMME_V != G_VOID) |
|
|
3572 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3573 | else |
|
|
3574 | SvREFCNT_dec (hv); |
|
|
3575 | } |
|
|
3576 | |
|
|
3577 | SV * |
|
|
3578 | rouse_cb () |
|
|
3579 | PROTOTYPE: |
|
|
3580 | CODE: |
|
|
3581 | RETVAL = coro_new_rouse_cb (aTHX); |
|
|
3582 | OUTPUT: |
|
|
3583 | RETVAL |
|
|
3584 | |
|
|
3585 | void |
|
|
3586 | rouse_wait (...) |
|
|
3587 | PROTOTYPE: ;$ |
|
|
3588 | PPCODE: |
|
|
3589 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
3590 | |
|
|
3591 | void |
|
|
3592 | on_enter (SV *block) |
|
|
3593 | ALIAS: |
|
|
3594 | on_leave = 1 |
|
|
3595 | PROTOTYPE: & |
|
|
3596 | CODE: |
|
|
3597 | { |
|
|
3598 | struct coro *coro = SvSTATE_current; |
|
|
3599 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
|
|
3600 | |
|
|
3601 | block = (SV *)coro_sv_2cv (aTHX_ block); |
|
|
3602 | |
|
|
3603 | if (!*avp) |
|
|
3604 | *avp = newAV (); |
|
|
3605 | |
|
|
3606 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
3607 | |
|
|
3608 | if (!ix) |
|
|
3609 | on_enterleave_call (aTHX_ block); |
|
|
3610 | |
|
|
3611 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3612 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
3613 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3614 | } |
|
|
3615 | |
|
|
3616 | |
|
|
3617 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
3618 | |
|
|
3619 | BOOT: |
|
|
3620 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
3621 | |
|
|
3622 | |
|
|
3623 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
3624 | |
|
|
3625 | SV * |
|
|
3626 | new (SV *klass, SV *count = 0) |
|
|
3627 | CODE: |
|
|
3628 | { |
|
|
3629 | int semcnt = 1; |
|
|
3630 | |
|
|
3631 | if (count) |
|
|
3632 | { |
|
|
3633 | SvGETMAGIC (count); |
|
|
3634 | |
|
|
3635 | if (SvOK (count)) |
|
|
3636 | semcnt = SvIV (count); |
|
|
3637 | } |
|
|
3638 | |
|
|
3639 | RETVAL = sv_bless ( |
|
|
3640 | coro_waitarray_new (aTHX_ semcnt), |
|
|
3641 | GvSTASH (CvGV (cv)) |
|
|
3642 | ); |
|
|
3643 | } |
|
|
3644 | OUTPUT: |
|
|
3645 | RETVAL |
|
|
3646 | |
|
|
3647 | # helper for Coro::Channel and others |
|
|
3648 | SV * |
|
|
3649 | _alloc (int count) |
|
|
3650 | CODE: |
|
|
3651 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3652 | OUTPUT: |
|
|
3653 | RETVAL |
|
|
3654 | |
|
|
3655 | SV * |
|
|
3656 | count (SV *self) |
|
|
3657 | CODE: |
|
|
3658 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3659 | OUTPUT: |
|
|
3660 | RETVAL |
|
|
3661 | |
|
|
3662 | void |
|
|
3663 | up (SV *self, int adjust = 1) |
|
|
3664 | ALIAS: |
|
|
3665 | adjust = 1 |
1911 | CODE: |
3666 | CODE: |
1912 | SvREFCNT_dec (self->throw); |
3667 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
1913 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1914 | |
3668 | |
1915 | void |
3669 | void |
1916 | swap_defsv (Coro::State self) |
3670 | down (...) |
1917 | PROTOTYPE: $ |
|
|
1918 | ALIAS: |
|
|
1919 | swap_defav = 1 |
|
|
1920 | CODE: |
3671 | CODE: |
1921 | if (!self->slot) |
3672 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
1922 | croak ("cannot swap state with coroutine that has no saved state"); |
3673 | |
|
|
3674 | void |
|
|
3675 | wait (...) |
|
|
3676 | CODE: |
|
|
3677 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3678 | |
|
|
3679 | void |
|
|
3680 | try (SV *self) |
|
|
3681 | PPCODE: |
|
|
3682 | { |
|
|
3683 | AV *av = (AV *)SvRV (self); |
|
|
3684 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3685 | IV count = SvIVX (count_sv); |
|
|
3686 | |
|
|
3687 | if (count > 0) |
|
|
3688 | { |
|
|
3689 | --count; |
|
|
3690 | SvIVX (count_sv) = count; |
|
|
3691 | XSRETURN_YES; |
|
|
3692 | } |
|
|
3693 | else |
|
|
3694 | XSRETURN_NO; |
|
|
3695 | } |
|
|
3696 | |
|
|
3697 | void |
|
|
3698 | waiters (SV *self) |
|
|
3699 | PPCODE: |
|
|
3700 | { |
|
|
3701 | AV *av = (AV *)SvRV (self); |
|
|
3702 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3703 | |
|
|
3704 | if (GIMME_V == G_SCALAR) |
|
|
3705 | XPUSHs (sv_2mortal (newSViv (wcount))); |
1923 | else |
3706 | else |
1924 | { |
3707 | { |
1925 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
3708 | int i; |
1926 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3709 | EXTEND (SP, wcount); |
1927 | |
3710 | for (i = 1; i <= wcount; ++i) |
1928 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3711 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
1929 | } |
3712 | } |
|
|
3713 | } |
1930 | |
3714 | |
1931 | # for async_pool speedup |
3715 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
3716 | |
1932 | void |
3717 | void |
1933 | _pool_1 (SV *cb) |
3718 | _may_delete (SV *sem, int count, int extra_refs) |
|
|
3719 | PPCODE: |
|
|
3720 | { |
|
|
3721 | AV *av = (AV *)SvRV (sem); |
|
|
3722 | |
|
|
3723 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
|
|
3724 | && AvFILLp (av) == 0 /* no waiters, just count */ |
|
|
3725 | && SvIV (AvARRAY (av)[0]) == count) |
|
|
3726 | XSRETURN_YES; |
|
|
3727 | |
|
|
3728 | XSRETURN_NO; |
|
|
3729 | } |
|
|
3730 | |
|
|
3731 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3732 | |
|
|
3733 | SV * |
|
|
3734 | new (SV *klass) |
1934 | CODE: |
3735 | CODE: |
1935 | { |
3736 | RETVAL = sv_bless ( |
1936 | struct coro *coro = SvSTATE (coro_current); |
3737 | coro_waitarray_new (aTHX_ 0), |
1937 | HV *hv = (HV *)SvRV (coro_current); |
3738 | GvSTASH (CvGV (cv)) |
1938 | AV *defav = GvAV (PL_defgv); |
3739 | ); |
1939 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
3740 | OUTPUT: |
1940 | AV *invoke_av; |
3741 | RETVAL |
1941 | int i, len; |
|
|
1942 | |
|
|
1943 | if (!invoke) |
|
|
1944 | { |
|
|
1945 | SvREFCNT_dec (PL_diehook); PL_diehook = 0; |
|
|
1946 | croak ("\3async_pool terminate\2\n"); |
|
|
1947 | } |
|
|
1948 | |
|
|
1949 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1950 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
|
|
1951 | |
|
|
1952 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1953 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1954 | |
|
|
1955 | invoke_av = (AV *)SvRV (invoke); |
|
|
1956 | len = av_len (invoke_av); |
|
|
1957 | |
|
|
1958 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1959 | |
|
|
1960 | if (len > 0) |
|
|
1961 | { |
|
|
1962 | av_fill (defav, len - 1); |
|
|
1963 | for (i = 0; i < len; ++i) |
|
|
1964 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1965 | } |
|
|
1966 | |
|
|
1967 | SvREFCNT_dec (invoke); |
|
|
1968 | } |
|
|
1969 | |
3742 | |
1970 | void |
3743 | void |
1971 | _pool_2 (SV *cb) |
3744 | wait (...) |
|
|
3745 | CODE: |
|
|
3746 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3747 | |
|
|
3748 | void |
|
|
3749 | broadcast (SV *self) |
|
|
3750 | CODE: |
|
|
3751 | { |
|
|
3752 | AV *av = (AV *)SvRV (self); |
|
|
3753 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3754 | } |
|
|
3755 | |
|
|
3756 | void |
|
|
3757 | send (SV *self) |
|
|
3758 | CODE: |
|
|
3759 | { |
|
|
3760 | AV *av = (AV *)SvRV (self); |
|
|
3761 | |
|
|
3762 | if (AvFILLp (av)) |
|
|
3763 | coro_signal_wake (aTHX_ av, 1); |
|
|
3764 | else |
|
|
3765 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
3766 | } |
|
|
3767 | |
|
|
3768 | IV |
|
|
3769 | awaited (SV *self) |
1972 | CODE: |
3770 | CODE: |
1973 | { |
3771 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
1974 | struct coro *coro = SvSTATE (coro_current); |
|
|
1975 | |
|
|
1976 | sv_setsv (cb, &PL_sv_undef); |
|
|
1977 | |
|
|
1978 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1979 | coro->saved_deffh = 0; |
|
|
1980 | |
|
|
1981 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1982 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1983 | { |
|
|
1984 | SvREFCNT_dec (PL_diehook); PL_diehook = 0; |
|
|
1985 | croak ("\3async_pool terminate\2\n"); |
|
|
1986 | } |
|
|
1987 | |
|
|
1988 | av_clear (GvAV (PL_defgv)); |
|
|
1989 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1990 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1991 | |
|
|
1992 | coro->prio = 0; |
|
|
1993 | |
|
|
1994 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1995 | api_trace (coro_current, 0); |
|
|
1996 | |
|
|
1997 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1998 | } |
|
|
1999 | |
|
|
2000 | |
|
|
2001 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2002 | |
|
|
2003 | SV * |
|
|
2004 | _get_state () |
|
|
2005 | CODE: |
|
|
2006 | { |
|
|
2007 | struct io_state *data; |
|
|
2008 | |
|
|
2009 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
2010 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
2011 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
2012 | SvPOK_only (RETVAL); |
|
|
2013 | |
|
|
2014 | data->errorno = errno; |
|
|
2015 | data->laststype = PL_laststype; |
|
|
2016 | data->laststatval = PL_laststatval; |
|
|
2017 | data->statcache = PL_statcache; |
|
|
2018 | } |
|
|
2019 | OUTPUT: |
3772 | OUTPUT: |
2020 | RETVAL |
3773 | RETVAL |
2021 | |
3774 | |
|
|
3775 | |
|
|
3776 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
3777 | |
|
|
3778 | BOOT: |
|
|
3779 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
3780 | |
2022 | void |
3781 | void |
2023 | _set_state (char *data_) |
3782 | _schedule (...) |
2024 | PROTOTYPE: $ |
|
|
2025 | CODE: |
3783 | CODE: |
2026 | { |
3784 | { |
2027 | struct io_state *data = (void *)data_; |
3785 | static int incede; |
2028 | |
3786 | |
2029 | errno = data->errorno; |
3787 | api_cede_notself (aTHX); |
2030 | PL_laststype = data->laststype; |
|
|
2031 | PL_laststatval = data->laststatval; |
|
|
2032 | PL_statcache = data->statcache; |
|
|
2033 | } |
|
|
2034 | |
3788 | |
|
|
3789 | ++incede; |
|
|
3790 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
3791 | ; |
|
|
3792 | |
|
|
3793 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
3794 | if (coro_nready >= incede) |
|
|
3795 | { |
|
|
3796 | PUSHMARK (SP); |
|
|
3797 | PUTBACK; |
|
|
3798 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3799 | } |
|
|
3800 | |
|
|
3801 | --incede; |
|
|
3802 | } |
|
|
3803 | |
|
|
3804 | |
|
|
3805 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
3806 | |
|
|
3807 | void |
|
|
3808 | _register (char *target, char *proto, SV *req) |
|
|
3809 | CODE: |
|
|
3810 | { |
|
|
3811 | CV *req_cv = coro_sv_2cv (aTHX_ req); |
|
|
3812 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3813 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3814 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3815 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3816 | } |
|
|
3817 | |