1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
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2 | |
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3 | #define PERL_NO_GET_CONTEXT |
2 | |
4 | |
3 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
4 | #include "perl.h" |
6 | #include "perl.h" |
5 | #include "XSUB.h" |
7 | #include "XSUB.h" |
6 | |
8 | |
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31 | #else |
33 | #else |
32 | # define PAGESIZE 0 |
34 | # define PAGESIZE 0 |
33 | # define BOOT_PAGESIZE (void)0 |
35 | # define BOOT_PAGESIZE (void)0 |
34 | #endif |
36 | #endif |
35 | |
37 | |
36 | #if USE_VALGRIND |
38 | #if CORO_USE_VALGRIND |
37 | # include <valgrind/valgrind.h> |
39 | # include <valgrind/valgrind.h> |
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40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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41 | #else |
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42 | # define REGISTER_STACK(cctx,start,end) |
38 | #endif |
43 | #endif |
39 | |
44 | |
40 | /* the maximum number of idle cctx that will be pooled */ |
45 | /* the maximum number of idle cctx that will be pooled */ |
41 | #define MAX_IDLE_CCTX 8 |
46 | #define MAX_IDLE_CCTX 8 |
42 | |
47 | |
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71 | #ifndef SvRV_set |
76 | #ifndef SvRV_set |
72 | # define SvRV_set(s,v) SvRV(s) = (v) |
77 | # define SvRV_set(s,v) SvRV(s) = (v) |
73 | #endif |
78 | #endif |
74 | |
79 | |
75 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
80 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
76 | # undef STACKGUARD |
81 | # undef CORO_STACKGUARD |
77 | #endif |
82 | #endif |
78 | |
83 | |
79 | #ifndef STACKGUARD |
84 | #ifndef CORO_STACKGUARD |
80 | # define STACKGUARD 0 |
85 | # define CORO_STACKGUARD 0 |
81 | #endif |
86 | #endif |
82 | |
87 | |
83 | /* prefer perl internal functions over our own? */ |
88 | /* prefer perl internal functions over our own? */ |
84 | #ifndef PREFER_PERL_FUNCTIONS |
89 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
85 | # define PREFER_PERL_FUNCTIONS 0 |
90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
86 | #endif |
91 | #endif |
87 | |
92 | |
88 | /* The next macro should declare a variable stacklevel that contains and approximation |
93 | /* The next macros try to return the current stack pointer, in an as |
89 | * to the current C stack pointer. Its property is that it changes with each call |
94 | * portable way as possible. */ |
90 | * and should be unique. */ |
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91 | #define dSTACKLEVEL int stacklevel |
95 | #define dSTACKLEVEL volatile char stacklevel |
92 | #define STACKLEVEL ((void *)&stacklevel) |
96 | #define STACKLEVEL ((void *)&stacklevel) |
93 | |
97 | |
94 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
98 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
95 | |
99 | |
96 | #if __GNUC__ >= 3 |
100 | #if __GNUC__ >= 3 |
97 | # define attribute(x) __attribute__(x) |
101 | # define attribute(x) __attribute__(x) |
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102 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
98 | #else |
103 | #else |
99 | # define attribute(x) |
104 | # define attribute(x) |
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105 | # define BARRIER |
100 | #endif |
106 | #endif |
101 | |
107 | |
102 | #define NOINLINE attribute ((noinline)) |
108 | #define NOINLINE attribute ((noinline)) |
103 | |
109 | |
104 | #include "CoroAPI.h" |
110 | #include "CoroAPI.h" |
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110 | #else |
116 | #else |
111 | # define LOCK (void)0 |
117 | # define LOCK (void)0 |
112 | # define UNLOCK (void)0 |
118 | # define UNLOCK (void)0 |
113 | #endif |
119 | #endif |
114 | |
120 | |
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121 | /* helper storage struct for Coro::AIO */ |
115 | struct io_state |
122 | struct io_state |
116 | { |
123 | { |
117 | int errorno; |
124 | int errorno; |
118 | I32 laststype; |
125 | I32 laststype; |
119 | int laststatval; |
126 | int laststatval; |
120 | Stat_t statcache; |
127 | Stat_t statcache; |
121 | }; |
128 | }; |
122 | |
129 | |
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130 | static size_t coro_stacksize = CORO_STACKSIZE; |
123 | static struct CoroAPI coroapi; |
131 | static struct CoroAPI coroapi; |
124 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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133 | static JMPENV *main_top_env; |
125 | static HV *coro_state_stash, *coro_stash; |
134 | static HV *coro_state_stash, *coro_stash; |
126 | static SV *coro_mortal; /* will be freed after next transfer */ |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
127 | |
136 | |
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137 | static GV *irsgv; /* $/ */ |
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138 | static GV *stdoutgv; /* STDOUT */ |
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139 | |
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140 | /* async_pool helper stuff */ |
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141 | static SV *sv_pool_rss; |
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142 | static SV *sv_pool_size; |
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143 | static AV *av_async_pool; |
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144 | |
128 | static struct coro_cctx *cctx_first; |
145 | static struct coro_cctx *cctx_first; |
129 | static int cctx_count, cctx_idle; |
146 | static int cctx_count, cctx_idle; |
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147 | |
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148 | enum { |
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149 | CC_MAPPED = 0x01, |
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150 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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151 | CC_TRACE = 0x04, |
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152 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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153 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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154 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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155 | }; |
130 | |
156 | |
131 | /* this is a structure representing a c-level coroutine */ |
157 | /* this is a structure representing a c-level coroutine */ |
132 | typedef struct coro_cctx { |
158 | typedef struct coro_cctx { |
133 | struct coro_cctx *next; |
159 | struct coro_cctx *next; |
134 | |
160 | |
135 | /* the stack */ |
161 | /* the stack */ |
136 | void *sptr; |
162 | void *sptr; |
137 | long ssize; /* positive == mmap, otherwise malloc */ |
163 | size_t ssize; |
138 | |
164 | |
139 | /* cpu state */ |
165 | /* cpu state */ |
140 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
166 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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167 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
141 | JMPENV *top_env; |
168 | JMPENV *top_env; |
142 | coro_context cctx; |
169 | coro_context cctx; |
143 | |
170 | |
144 | int inuse; |
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145 | |
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146 | #if USE_VALGRIND |
171 | #if CORO_USE_VALGRIND |
147 | int valgrind_id; |
172 | int valgrind_id; |
148 | #endif |
173 | #endif |
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174 | unsigned char flags; |
149 | } coro_cctx; |
175 | } coro_cctx; |
150 | |
176 | |
151 | enum { |
177 | enum { |
152 | CF_RUNNING = 0x0001, /* coroutine is running */ |
178 | CF_RUNNING = 0x0001, /* coroutine is running */ |
153 | CF_READY = 0x0002, /* coroutine is ready */ |
179 | CF_READY = 0x0002, /* coroutine is ready */ |
154 | CF_NEW = 0x0004, /* ahs never been switched to */ |
180 | CF_NEW = 0x0004, /* has never been switched to */ |
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181 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
155 | }; |
182 | }; |
156 | |
183 | |
157 | /* this is a structure representing a perl-level coroutine */ |
184 | /* this is a structure representing a perl-level coroutine */ |
158 | struct coro { |
185 | struct coro { |
159 | /* the c coroutine allocated to this perl coroutine, if any */ |
186 | /* the c coroutine allocated to this perl coroutine, if any */ |
160 | coro_cctx *cctx; |
187 | coro_cctx *cctx; |
161 | |
188 | |
162 | /* data associated with this coroutine (initial args) */ |
189 | /* data associated with this coroutine (initial args) */ |
163 | AV *args; |
190 | AV *args; |
164 | int refcnt; |
191 | int refcnt; |
165 | int save; /* CORO_SAVE flags */ |
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166 | int flags; /* CF_ flags */ |
192 | int flags; /* CF_ flags */ |
167 | |
193 | |
168 | /* optionally saved, might be zero */ |
194 | /* optionally saved, might be zero */ |
169 | AV *defav; /* @_ */ |
195 | AV *defav; /* @_ */ |
170 | SV *defsv; /* $_ */ |
196 | SV *defsv; /* $_ */ |
171 | SV *errsv; /* $@ */ |
197 | SV *errsv; /* $@ */ |
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198 | SV *deffh; /* default filehandle */ |
172 | SV *irssv; /* $/ */ |
199 | SV *irssv; /* $/ */ |
173 | SV *irssv_sv; /* real $/ cache */ |
200 | SV *irssv_sv; /* real $/ cache */ |
174 | |
201 | |
175 | #define VAR(name,type) type name; |
202 | #define VAR(name,type) type name; |
176 | # include "state.h" |
203 | # include "state.h" |
177 | #undef VAR |
204 | #undef VAR |
178 | |
205 | |
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206 | /* statistics */ |
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207 | int usecount; /* number of transfers to this coro */ |
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208 | |
179 | /* coro process data */ |
209 | /* coro process data */ |
180 | int prio; |
210 | int prio; |
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211 | //SV *throw; |
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212 | |
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213 | /* async_pool */ |
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214 | SV *saved_deffh; |
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215 | |
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216 | /* linked list */ |
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217 | struct coro *next, *prev; |
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218 | HV *hv; /* the perl hash associated with this coro, if any */ |
181 | }; |
219 | }; |
182 | |
220 | |
183 | typedef struct coro *Coro__State; |
221 | typedef struct coro *Coro__State; |
184 | typedef struct coro *Coro__State_or_hashref; |
222 | typedef struct coro *Coro__State_or_hashref; |
185 | |
223 | |
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224 | /** Coro ********************************************************************/ |
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225 | |
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226 | #define PRIO_MAX 3 |
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227 | #define PRIO_HIGH 1 |
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228 | #define PRIO_NORMAL 0 |
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229 | #define PRIO_LOW -1 |
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230 | #define PRIO_IDLE -3 |
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231 | #define PRIO_MIN -4 |
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232 | |
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233 | /* for Coro.pm */ |
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234 | static SV *coro_current; |
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235 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
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236 | static int coro_nready; |
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237 | static struct coro *coro_first; |
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238 | |
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239 | /** lowlevel stuff **********************************************************/ |
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240 | |
186 | static AV * |
241 | static AV * |
187 | coro_clone_padlist (CV *cv) |
242 | coro_clone_padlist (pTHX_ CV *cv) |
188 | { |
243 | { |
189 | AV *padlist = CvPADLIST (cv); |
244 | AV *padlist = CvPADLIST (cv); |
190 | AV *newpadlist, *newpad; |
245 | AV *newpadlist, *newpad; |
191 | |
246 | |
192 | newpadlist = newAV (); |
247 | newpadlist = newAV (); |
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204 | |
259 | |
205 | return newpadlist; |
260 | return newpadlist; |
206 | } |
261 | } |
207 | |
262 | |
208 | static void |
263 | static void |
209 | free_padlist (AV *padlist) |
264 | free_padlist (pTHX_ AV *padlist) |
210 | { |
265 | { |
211 | /* may be during global destruction */ |
266 | /* may be during global destruction */ |
212 | if (SvREFCNT (padlist)) |
267 | if (SvREFCNT (padlist)) |
213 | { |
268 | { |
214 | I32 i = AvFILLp (padlist); |
269 | I32 i = AvFILLp (padlist); |
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235 | AV *padlist; |
290 | AV *padlist; |
236 | AV *av = (AV *)mg->mg_obj; |
291 | AV *av = (AV *)mg->mg_obj; |
237 | |
292 | |
238 | /* casting is fun. */ |
293 | /* casting is fun. */ |
239 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
294 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
240 | free_padlist (padlist); |
295 | free_padlist (aTHX_ padlist); |
241 | |
296 | |
242 | SvREFCNT_dec (av); |
297 | SvREFCNT_dec (av); |
243 | |
298 | |
244 | return 0; |
299 | return 0; |
245 | } |
300 | } |
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253 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
308 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
254 | ? SvMAGIC (cv) \ |
309 | ? SvMAGIC (cv) \ |
255 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
310 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
256 | : 0 |
311 | : 0 |
257 | |
312 | |
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313 | static struct coro * |
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314 | SvSTATE_ (pTHX_ SV *coro) |
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315 | { |
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316 | HV *stash; |
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317 | MAGIC *mg; |
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318 | |
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319 | if (SvROK (coro)) |
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320 | coro = SvRV (coro); |
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321 | |
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322 | if (SvTYPE (coro) != SVt_PVHV) |
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323 | croak ("Coro::State object required"); |
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324 | |
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325 | stash = SvSTASH (coro); |
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326 | if (stash != coro_stash && stash != coro_state_stash) |
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327 | { |
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328 | /* very slow, but rare, check */ |
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329 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
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330 | croak ("Coro::State object required"); |
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331 | } |
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332 | |
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333 | mg = CORO_MAGIC (coro); |
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334 | return (struct coro *)mg->mg_ptr; |
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335 | } |
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336 | |
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337 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
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338 | |
258 | /* the next two functions merely cache the padlists */ |
339 | /* the next two functions merely cache the padlists */ |
259 | static void |
340 | static void |
260 | get_padlist (CV *cv) |
341 | get_padlist (pTHX_ CV *cv) |
261 | { |
342 | { |
262 | MAGIC *mg = CORO_MAGIC (cv); |
343 | MAGIC *mg = CORO_MAGIC (cv); |
263 | AV *av; |
344 | AV *av; |
264 | |
345 | |
265 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
346 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
266 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
347 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
267 | else |
348 | else |
268 | { |
349 | { |
269 | #if PREFER_PERL_FUNCTIONS |
350 | #if CORO_PREFER_PERL_FUNCTIONS |
270 | /* this is probably cleaner, but also slower? */ |
351 | /* this is probably cleaner, but also slower? */ |
271 | CV *cp = Perl_cv_clone (cv); |
352 | CV *cp = Perl_cv_clone (cv); |
272 | CvPADLIST (cv) = CvPADLIST (cp); |
353 | CvPADLIST (cv) = CvPADLIST (cp); |
273 | CvPADLIST (cp) = 0; |
354 | CvPADLIST (cp) = 0; |
274 | SvREFCNT_dec (cp); |
355 | SvREFCNT_dec (cp); |
275 | #else |
356 | #else |
276 | CvPADLIST (cv) = coro_clone_padlist (cv); |
357 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
277 | #endif |
358 | #endif |
278 | } |
359 | } |
279 | } |
360 | } |
280 | |
361 | |
281 | static void |
362 | static void |
282 | put_padlist (CV *cv) |
363 | put_padlist (pTHX_ CV *cv) |
283 | { |
364 | { |
284 | MAGIC *mg = CORO_MAGIC (cv); |
365 | MAGIC *mg = CORO_MAGIC (cv); |
285 | AV *av; |
366 | AV *av; |
286 | |
367 | |
287 | if (!mg) |
368 | if (!mg) |
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298 | av_extend (av, AvMAX (av) + 1); |
379 | av_extend (av, AvMAX (av) + 1); |
299 | |
380 | |
300 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
381 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
301 | } |
382 | } |
302 | |
383 | |
303 | #define SB do { |
384 | /** load & save, init *******************************************************/ |
304 | #define SE } while (0) |
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305 | |
385 | |
306 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
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307 | |
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308 | static void |
386 | static void |
309 | load_perl (Coro__State c) |
387 | load_perl (pTHX_ Coro__State c) |
310 | { |
388 | { |
311 | #define VAR(name,type) PL_ ## name = c->name; |
389 | #define VAR(name,type) PL_ ## name = c->name; |
312 | # include "state.h" |
390 | # include "state.h" |
313 | #undef VAR |
391 | #undef VAR |
314 | |
392 | |
315 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
393 | GvSV (PL_defgv) = c->defsv; |
316 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
394 | GvAV (PL_defgv) = c->defav; |
317 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
395 | GvSV (PL_errgv) = c->errsv; |
318 | if (c->irssv) |
396 | GvSV (irsgv) = c->irssv_sv; |
319 | { |
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320 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
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321 | SvREFCNT_dec (c->irssv); |
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322 | else |
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323 | { |
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324 | REPLACE_SV (PL_rs, c->irssv); |
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325 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
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326 | sv_setsv (c->irssv_sv, PL_rs); |
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327 | } |
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328 | } |
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329 | |
397 | |
330 | { |
398 | { |
331 | dSP; |
399 | dSP; |
332 | CV *cv; |
400 | CV *cv; |
333 | |
401 | |
334 | /* now do the ugly restore mess */ |
402 | /* now do the ugly restore mess */ |
335 | while ((cv = (CV *)POPs)) |
403 | while ((cv = (CV *)POPs)) |
336 | { |
404 | { |
337 | put_padlist (cv); /* mark this padlist as available */ |
405 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
338 | CvDEPTH (cv) = PTR2IV (POPs); |
406 | CvDEPTH (cv) = PTR2IV (POPs); |
339 | CvPADLIST (cv) = (AV *)POPs; |
407 | CvPADLIST (cv) = (AV *)POPs; |
340 | } |
408 | } |
341 | |
409 | |
342 | PUTBACK; |
410 | PUTBACK; |
343 | } |
411 | } |
344 | } |
412 | } |
345 | |
413 | |
346 | static void |
414 | static void |
347 | save_perl (Coro__State c) |
415 | save_perl (pTHX_ Coro__State c) |
348 | { |
416 | { |
349 | { |
417 | { |
350 | dSP; |
418 | dSP; |
351 | I32 cxix = cxstack_ix; |
419 | I32 cxix = cxstack_ix; |
352 | PERL_CONTEXT *ccstk = cxstack; |
420 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
355 | /* |
423 | /* |
356 | * the worst thing you can imagine happens first - we have to save |
424 | * the worst thing you can imagine happens first - we have to save |
357 | * (and reinitialize) all cv's in the whole callchain :( |
425 | * (and reinitialize) all cv's in the whole callchain :( |
358 | */ |
426 | */ |
359 | |
427 | |
360 | EXTEND (SP, 3 + 1); |
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361 | PUSHs (Nullsv); |
428 | XPUSHs (Nullsv); |
362 | /* this loop was inspired by pp_caller */ |
429 | /* this loop was inspired by pp_caller */ |
363 | for (;;) |
430 | for (;;) |
364 | { |
431 | { |
365 | while (cxix >= 0) |
432 | while (cxix >= 0) |
366 | { |
433 | { |
367 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
434 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
368 | |
435 | |
369 | if (CxTYPE (cx) == CXt_SUB) |
436 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
370 | { |
437 | { |
371 | CV *cv = cx->blk_sub.cv; |
438 | CV *cv = cx->blk_sub.cv; |
372 | |
439 | |
373 | if (CvDEPTH (cv)) |
440 | if (CvDEPTH (cv)) |
374 | { |
441 | { |
… | |
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376 | PUSHs ((SV *)CvPADLIST (cv)); |
443 | PUSHs ((SV *)CvPADLIST (cv)); |
377 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
444 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
378 | PUSHs ((SV *)cv); |
445 | PUSHs ((SV *)cv); |
379 | |
446 | |
380 | CvDEPTH (cv) = 0; |
447 | CvDEPTH (cv) = 0; |
381 | get_padlist (cv); |
448 | get_padlist (aTHX_ cv); |
382 | } |
449 | } |
383 | } |
450 | } |
384 | } |
451 | } |
385 | |
452 | |
386 | if (top_si->si_type == PERLSI_MAIN) |
453 | if (top_si->si_type == PERLSI_MAIN) |
387 | break; |
454 | break; |
388 | |
455 | |
389 | top_si = top_si->si_prev; |
456 | top_si = top_si->si_prev; |
390 | ccstk = top_si->si_cxstack; |
457 | ccstk = top_si->si_cxstack; |
391 | cxix = top_si->si_cxix; |
458 | cxix = top_si->si_cxix; |
392 | } |
459 | } |
393 | |
460 | |
394 | PUTBACK; |
461 | PUTBACK; |
395 | } |
462 | } |
396 | |
463 | |
397 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
464 | c->defav = GvAV (PL_defgv); |
398 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
465 | c->defsv = DEFSV; |
399 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
466 | c->errsv = ERRSV; |
400 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
467 | c->irssv_sv = GvSV (irsgv); |
401 | |
468 | |
402 | #define VAR(name,type)c->name = PL_ ## name; |
469 | #define VAR(name,type)c->name = PL_ ## name; |
403 | # include "state.h" |
470 | # include "state.h" |
404 | #undef VAR |
471 | #undef VAR |
405 | } |
472 | } |
… | |
… | |
408 | * allocate various perl stacks. This is an exact copy |
475 | * allocate various perl stacks. This is an exact copy |
409 | * of perl.c:init_stacks, except that it uses less memory |
476 | * of perl.c:init_stacks, except that it uses less memory |
410 | * on the (sometimes correct) assumption that coroutines do |
477 | * on the (sometimes correct) assumption that coroutines do |
411 | * not usually need a lot of stackspace. |
478 | * not usually need a lot of stackspace. |
412 | */ |
479 | */ |
413 | #if PREFER_PERL_FUNCTIONS |
480 | #if CORO_PREFER_PERL_FUNCTIONS |
414 | # define coro_init_stacks init_stacks |
481 | # define coro_init_stacks init_stacks |
415 | #else |
482 | #else |
416 | static void |
483 | static void |
417 | coro_init_stacks () |
484 | coro_init_stacks (pTHX) |
418 | { |
485 | { |
419 | PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); |
486 | PL_curstackinfo = new_stackinfo(64, 6); |
420 | PL_curstackinfo->si_type = PERLSI_MAIN; |
487 | PL_curstackinfo->si_type = PERLSI_MAIN; |
421 | PL_curstack = PL_curstackinfo->si_stack; |
488 | PL_curstack = PL_curstackinfo->si_stack; |
422 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
489 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
423 | |
490 | |
424 | PL_stack_base = AvARRAY(PL_curstack); |
491 | PL_stack_base = AvARRAY(PL_curstack); |
425 | PL_stack_sp = PL_stack_base; |
492 | PL_stack_sp = PL_stack_base; |
426 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
493 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
427 | |
494 | |
428 | New(50,PL_tmps_stack,128,SV*); |
495 | New(50,PL_tmps_stack,64,SV*); |
429 | PL_tmps_floor = -1; |
496 | PL_tmps_floor = -1; |
430 | PL_tmps_ix = -1; |
497 | PL_tmps_ix = -1; |
431 | PL_tmps_max = 128; |
498 | PL_tmps_max = 64; |
432 | |
499 | |
433 | New(54,PL_markstack,32,I32); |
500 | New(54,PL_markstack,16,I32); |
434 | PL_markstack_ptr = PL_markstack; |
501 | PL_markstack_ptr = PL_markstack; |
435 | PL_markstack_max = PL_markstack + 32; |
502 | PL_markstack_max = PL_markstack + 16; |
436 | |
503 | |
437 | #ifdef SET_MARK_OFFSET |
504 | #ifdef SET_MARK_OFFSET |
438 | SET_MARK_OFFSET; |
505 | SET_MARK_OFFSET; |
439 | #endif |
506 | #endif |
440 | |
507 | |
441 | New(54,PL_scopestack,32,I32); |
508 | New(54,PL_scopestack,16,I32); |
442 | PL_scopestack_ix = 0; |
509 | PL_scopestack_ix = 0; |
443 | PL_scopestack_max = 32; |
510 | PL_scopestack_max = 16; |
444 | |
511 | |
445 | New(54,PL_savestack,64,ANY); |
512 | New(54,PL_savestack,64,ANY); |
446 | PL_savestack_ix = 0; |
513 | PL_savestack_ix = 0; |
447 | PL_savestack_max = 64; |
514 | PL_savestack_max = 64; |
448 | |
515 | |
449 | #if !PERL_VERSION_ATLEAST (5,9,0) |
516 | #if !PERL_VERSION_ATLEAST (5,9,0) |
450 | New(54,PL_retstack,16,OP*); |
517 | New(54,PL_retstack,4,OP*); |
451 | PL_retstack_ix = 0; |
518 | PL_retstack_ix = 0; |
452 | PL_retstack_max = 16; |
519 | PL_retstack_max = 4; |
453 | #endif |
520 | #endif |
454 | } |
521 | } |
455 | #endif |
522 | #endif |
456 | |
523 | |
457 | /* |
524 | /* |
458 | * destroy the stacks, the callchain etc... |
525 | * destroy the stacks, the callchain etc... |
459 | */ |
526 | */ |
460 | static void |
527 | static void |
461 | coro_destroy_stacks () |
528 | coro_destroy_stacks (pTHX) |
462 | { |
529 | { |
463 | if (!IN_DESTRUCT) |
|
|
464 | { |
|
|
465 | /* restore all saved variables and stuff */ |
|
|
466 | LEAVE_SCOPE (0); |
|
|
467 | assert (PL_tmps_floor == -1); |
|
|
468 | |
|
|
469 | /* free all temporaries */ |
|
|
470 | FREETMPS; |
|
|
471 | assert (PL_tmps_ix == -1); |
|
|
472 | |
|
|
473 | POPSTACK_TO (PL_mainstack); |
|
|
474 | } |
|
|
475 | |
|
|
476 | while (PL_curstackinfo->si_next) |
530 | while (PL_curstackinfo->si_next) |
477 | PL_curstackinfo = PL_curstackinfo->si_next; |
531 | PL_curstackinfo = PL_curstackinfo->si_next; |
478 | |
532 | |
479 | while (PL_curstackinfo) |
533 | while (PL_curstackinfo) |
480 | { |
534 | { |
… | |
… | |
495 | #if !PERL_VERSION_ATLEAST (5,9,0) |
549 | #if !PERL_VERSION_ATLEAST (5,9,0) |
496 | Safefree (PL_retstack); |
550 | Safefree (PL_retstack); |
497 | #endif |
551 | #endif |
498 | } |
552 | } |
499 | |
553 | |
500 | static void |
554 | static size_t |
501 | setup_coro (struct coro *coro) |
555 | coro_rss (pTHX_ struct coro *coro) |
|
|
556 | { |
|
|
557 | size_t rss = sizeof (*coro); |
|
|
558 | |
|
|
559 | if (coro->mainstack) |
|
|
560 | { |
|
|
561 | if (coro->flags & CF_RUNNING) |
|
|
562 | { |
|
|
563 | #define VAR(name,type)coro->name = PL_ ## name; |
|
|
564 | # include "state.h" |
|
|
565 | #undef VAR |
|
|
566 | } |
|
|
567 | |
|
|
568 | rss += sizeof (coro->curstackinfo); |
|
|
569 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
570 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
571 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
|
|
572 | rss += coro->tmps_max * sizeof (SV *); |
|
|
573 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
|
|
574 | rss += coro->scopestack_max * sizeof (I32); |
|
|
575 | rss += coro->savestack_max * sizeof (ANY); |
|
|
576 | |
|
|
577 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
578 | rss += coro->retstack_max * sizeof (OP *); |
|
|
579 | #endif |
|
|
580 | } |
|
|
581 | |
|
|
582 | return rss; |
|
|
583 | } |
|
|
584 | |
|
|
585 | /** coroutine stack handling ************************************************/ |
|
|
586 | |
|
|
587 | static void |
|
|
588 | coro_setup (pTHX_ struct coro *coro) |
502 | { |
589 | { |
503 | /* |
590 | /* |
504 | * emulate part of the perl startup here. |
591 | * emulate part of the perl startup here. |
505 | */ |
592 | */ |
506 | |
|
|
507 | coro_init_stacks (); |
593 | coro_init_stacks (aTHX); |
508 | |
594 | |
|
|
595 | PL_runops = RUNOPS_DEFAULT; |
509 | PL_curcop = &PL_compiling; |
596 | PL_curcop = &PL_compiling; |
510 | PL_in_eval = EVAL_NULL; |
597 | PL_in_eval = EVAL_NULL; |
|
|
598 | PL_comppad = 0; |
511 | PL_curpm = 0; |
599 | PL_curpm = 0; |
512 | PL_localizing = 0; |
600 | PL_localizing = 0; |
513 | PL_dirty = 0; |
601 | PL_dirty = 0; |
514 | PL_restartop = 0; |
602 | PL_restartop = 0; |
|
|
603 | |
|
|
604 | GvSV (PL_defgv) = NEWSV (0, 0); |
|
|
605 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
606 | GvSV (PL_errgv) = NEWSV (0, 0); |
|
|
607 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
608 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
609 | PL_defoutgv = SvREFCNT_inc (stdoutgv); |
515 | |
610 | |
516 | { |
611 | { |
517 | dSP; |
612 | dSP; |
518 | LOGOP myop; |
613 | LOGOP myop; |
519 | |
614 | |
520 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
521 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
522 | |
|
|
523 | Zero (&myop, 1, LOGOP); |
615 | Zero (&myop, 1, LOGOP); |
524 | myop.op_next = Nullop; |
616 | myop.op_next = Nullop; |
525 | myop.op_flags = OPf_WANT_VOID; |
617 | myop.op_flags = OPf_WANT_VOID; |
526 | |
618 | |
527 | PUSHMARK (SP); |
619 | PUSHMARK (SP); |
528 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
620 | XPUSHs (av_shift (GvAV (PL_defgv))); |
529 | PUTBACK; |
621 | PUTBACK; |
530 | PL_op = (OP *)&myop; |
622 | PL_op = (OP *)&myop; |
531 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
623 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
532 | SPAGAIN; |
624 | SPAGAIN; |
533 | } |
625 | } |
534 | |
626 | |
535 | ENTER; /* necessary e.g. for dounwind */ |
627 | ENTER; /* necessary e.g. for dounwind */ |
536 | } |
628 | } |
537 | |
629 | |
538 | static void |
630 | static void |
|
|
631 | coro_destroy (pTHX_ struct coro *coro) |
|
|
632 | { |
|
|
633 | if (!IN_DESTRUCT) |
|
|
634 | { |
|
|
635 | /* restore all saved variables and stuff */ |
|
|
636 | LEAVE_SCOPE (0); |
|
|
637 | assert (PL_tmps_floor == -1); |
|
|
638 | |
|
|
639 | /* free all temporaries */ |
|
|
640 | FREETMPS; |
|
|
641 | assert (PL_tmps_ix == -1); |
|
|
642 | |
|
|
643 | /* unwind all extra stacks */ |
|
|
644 | POPSTACK_TO (PL_mainstack); |
|
|
645 | |
|
|
646 | /* unwind main stack */ |
|
|
647 | dounwind (-1); |
|
|
648 | } |
|
|
649 | |
|
|
650 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
651 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
652 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
653 | SvREFCNT_dec (PL_defoutgv); |
|
|
654 | SvREFCNT_dec (PL_rs); |
|
|
655 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
656 | |
|
|
657 | SvREFCNT_dec (coro->saved_deffh); |
|
|
658 | //SvREFCNT_dec (coro->throw); |
|
|
659 | |
|
|
660 | coro_destroy_stacks (aTHX); |
|
|
661 | } |
|
|
662 | |
|
|
663 | static void |
539 | free_coro_mortal () |
664 | free_coro_mortal (pTHX) |
540 | { |
665 | { |
541 | if (coro_mortal) |
666 | if (coro_mortal) |
542 | { |
667 | { |
543 | SvREFCNT_dec (coro_mortal); |
668 | SvREFCNT_dec (coro_mortal); |
544 | coro_mortal = 0; |
669 | coro_mortal = 0; |
545 | } |
670 | } |
546 | } |
671 | } |
547 | |
672 | |
|
|
673 | static int |
|
|
674 | runops_trace (pTHX) |
|
|
675 | { |
|
|
676 | COP *oldcop = 0; |
|
|
677 | int oldcxix = -2; |
|
|
678 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
679 | coro_cctx *cctx = coro->cctx; |
|
|
680 | |
|
|
681 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
682 | { |
|
|
683 | PERL_ASYNC_CHECK (); |
|
|
684 | |
|
|
685 | if (cctx->flags & CC_TRACE_ALL) |
|
|
686 | { |
|
|
687 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
688 | { |
|
|
689 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
690 | SV **bot, **top; |
|
|
691 | AV *av = newAV (); /* return values */ |
|
|
692 | SV **cb; |
|
|
693 | dSP; |
|
|
694 | |
|
|
695 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
696 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
697 | if (isGV (gv)) |
|
|
698 | gv_efullname3 (fullname, gv, 0); |
|
|
699 | |
|
|
700 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
701 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
702 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
703 | : bot; |
|
|
704 | |
|
|
705 | while (bot < top) |
|
|
706 | av_push (av, SvREFCNT_inc (*bot++)); |
|
|
707 | |
|
|
708 | PL_runops = RUNOPS_DEFAULT; |
|
|
709 | ENTER; |
|
|
710 | SAVETMPS; |
|
|
711 | EXTEND (SP, 3); |
|
|
712 | PUSHMARK (SP); |
|
|
713 | PUSHs (&PL_sv_no); |
|
|
714 | PUSHs (fullname); |
|
|
715 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
716 | PUTBACK; |
|
|
717 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
718 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
719 | SPAGAIN; |
|
|
720 | FREETMPS; |
|
|
721 | LEAVE; |
|
|
722 | PL_runops = runops_trace; |
|
|
723 | } |
|
|
724 | |
|
|
725 | if (oldcop != PL_curcop) |
|
|
726 | { |
|
|
727 | oldcop = PL_curcop; |
|
|
728 | |
|
|
729 | if (PL_curcop != &PL_compiling) |
|
|
730 | { |
|
|
731 | SV **cb; |
|
|
732 | |
|
|
733 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
734 | { |
|
|
735 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
736 | |
|
|
737 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
738 | { |
|
|
739 | runops_proc_t old_runops = PL_runops; |
|
|
740 | dSP; |
|
|
741 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
742 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
743 | |
|
|
744 | if (isGV (gv)) |
|
|
745 | gv_efullname3 (fullname, gv, 0); |
|
|
746 | |
|
|
747 | PL_runops = RUNOPS_DEFAULT; |
|
|
748 | ENTER; |
|
|
749 | SAVETMPS; |
|
|
750 | EXTEND (SP, 3); |
|
|
751 | PUSHMARK (SP); |
|
|
752 | PUSHs (&PL_sv_yes); |
|
|
753 | PUSHs (fullname); |
|
|
754 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
755 | PUTBACK; |
|
|
756 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
757 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
758 | SPAGAIN; |
|
|
759 | FREETMPS; |
|
|
760 | LEAVE; |
|
|
761 | PL_runops = runops_trace; |
|
|
762 | } |
|
|
763 | |
|
|
764 | oldcxix = cxstack_ix; |
|
|
765 | } |
|
|
766 | |
|
|
767 | if (cctx->flags & CC_TRACE_LINE) |
|
|
768 | { |
|
|
769 | dSP; |
|
|
770 | |
|
|
771 | PL_runops = RUNOPS_DEFAULT; |
|
|
772 | ENTER; |
|
|
773 | SAVETMPS; |
|
|
774 | EXTEND (SP, 3); |
|
|
775 | PL_runops = RUNOPS_DEFAULT; |
|
|
776 | PUSHMARK (SP); |
|
|
777 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
778 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
779 | PUTBACK; |
|
|
780 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
781 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
782 | SPAGAIN; |
|
|
783 | FREETMPS; |
|
|
784 | LEAVE; |
|
|
785 | PL_runops = runops_trace; |
|
|
786 | } |
|
|
787 | } |
|
|
788 | } |
|
|
789 | } |
|
|
790 | } |
|
|
791 | |
|
|
792 | TAINT_NOT; |
|
|
793 | return 0; |
|
|
794 | } |
|
|
795 | |
548 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
796 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
797 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
798 | /* during execution of a perl program */ |
549 | static void NOINLINE |
799 | static void NOINLINE |
550 | prepare_cctx (coro_cctx *cctx) |
800 | prepare_cctx (pTHX_ coro_cctx *cctx) |
551 | { |
801 | { |
552 | dSP; |
802 | dSP; |
553 | LOGOP myop; |
803 | LOGOP myop; |
|
|
804 | |
|
|
805 | PL_top_env = &PL_start_env; |
|
|
806 | |
|
|
807 | if (cctx->flags & CC_TRACE) |
|
|
808 | PL_runops = runops_trace; |
554 | |
809 | |
555 | Zero (&myop, 1, LOGOP); |
810 | Zero (&myop, 1, LOGOP); |
556 | myop.op_next = PL_op; |
811 | myop.op_next = PL_op; |
557 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
812 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
558 | |
813 | |
… | |
… | |
564 | PL_op = (OP *)&myop; |
819 | PL_op = (OP *)&myop; |
565 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
820 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
566 | SPAGAIN; |
821 | SPAGAIN; |
567 | } |
822 | } |
568 | |
823 | |
|
|
824 | /* |
|
|
825 | * this is a _very_ stripped down perl interpreter ;) |
|
|
826 | */ |
569 | static void |
827 | static void |
570 | coro_run (void *arg) |
828 | coro_run (void *arg) |
571 | { |
829 | { |
|
|
830 | dTHX; |
|
|
831 | |
572 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
832 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
573 | UNLOCK; |
833 | UNLOCK; |
574 | |
834 | |
575 | /* |
835 | /* we now skip the entersub that lead to transfer() */ |
576 | * this is a _very_ stripped down perl interpreter ;) |
836 | PL_op = PL_op->op_next; |
577 | */ |
|
|
578 | PL_top_env = &PL_start_env; |
|
|
579 | |
837 | |
580 | /* inject call to cctx_init */ |
838 | /* inject a fake subroutine call to cctx_init */ |
581 | prepare_cctx ((coro_cctx *)arg); |
839 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
582 | |
840 | |
583 | /* somebody will hit me for both perl_run and PL_restartop */ |
841 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
584 | PL_restartop = PL_op; |
842 | PL_restartop = PL_op; |
585 | perl_run (PL_curinterp); |
843 | perl_run (PL_curinterp); |
586 | |
844 | |
587 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
845 | /* |
588 | abort (); |
846 | * If perl-run returns we assume exit() was being called or the coro |
|
|
847 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
848 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
849 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
850 | * coroutine as Coro has no such concept |
|
|
851 | */ |
|
|
852 | PL_top_env = main_top_env; |
|
|
853 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
589 | } |
854 | } |
590 | |
855 | |
591 | static coro_cctx * |
856 | static coro_cctx * |
592 | cctx_new () |
857 | cctx_new () |
593 | { |
858 | { |
594 | coro_cctx *cctx; |
859 | coro_cctx *cctx; |
|
|
860 | void *stack_start; |
|
|
861 | size_t stack_size; |
595 | |
862 | |
596 | ++cctx_count; |
863 | ++cctx_count; |
597 | |
864 | |
598 | Newz (0, cctx, 1, coro_cctx); |
865 | Newz (0, cctx, 1, coro_cctx); |
599 | |
866 | |
600 | #if HAVE_MMAP |
867 | #if HAVE_MMAP |
601 | |
868 | |
602 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
869 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
603 | /* mmap supposedly does allocate-on-write for us */ |
870 | /* mmap supposedly does allocate-on-write for us */ |
604 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
871 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
605 | |
872 | |
606 | if (cctx->sptr == (void *)-1) |
873 | if (cctx->sptr != (void *)-1) |
607 | { |
|
|
608 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
609 | _exit (EXIT_FAILURE); |
|
|
610 | } |
874 | { |
611 | |
|
|
612 | # if STACKGUARD |
875 | # if CORO_STACKGUARD |
613 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
876 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
614 | # endif |
877 | # endif |
|
|
878 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
879 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
880 | cctx->flags |= CC_MAPPED; |
|
|
881 | } |
|
|
882 | else |
|
|
883 | #endif |
|
|
884 | { |
|
|
885 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
886 | New (0, cctx->sptr, coro_stacksize, long); |
615 | |
887 | |
616 | #else |
|
|
617 | |
|
|
618 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
|
|
619 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
620 | |
|
|
621 | if (!cctx->sptr) |
888 | if (!cctx->sptr) |
622 | { |
889 | { |
623 | perror ("FATAL: unable to malloc stack for coroutine"); |
890 | perror ("FATAL: unable to allocate stack for coroutine"); |
624 | _exit (EXIT_FAILURE); |
891 | _exit (EXIT_FAILURE); |
625 | } |
892 | } |
626 | |
893 | |
627 | #endif |
894 | stack_start = cctx->sptr; |
|
|
895 | stack_size = cctx->ssize; |
|
|
896 | } |
628 | |
897 | |
629 | #if USE_VALGRIND |
898 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
630 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
|
|
631 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
632 | cctx->ssize + (char *)cctx->sptr |
|
|
633 | ); |
|
|
634 | #endif |
|
|
635 | |
|
|
636 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
899 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
637 | |
900 | |
638 | return cctx; |
901 | return cctx; |
639 | } |
902 | } |
640 | |
903 | |
641 | static void |
904 | static void |
… | |
… | |
644 | if (!cctx) |
907 | if (!cctx) |
645 | return; |
908 | return; |
646 | |
909 | |
647 | --cctx_count; |
910 | --cctx_count; |
648 | |
911 | |
649 | #if USE_VALGRIND |
912 | #if CORO_USE_VALGRIND |
650 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
913 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
651 | #endif |
914 | #endif |
652 | |
915 | |
653 | #if HAVE_MMAP |
916 | #if HAVE_MMAP |
|
|
917 | if (cctx->flags & CC_MAPPED) |
654 | munmap (cctx->sptr, cctx->ssize); |
918 | munmap (cctx->sptr, cctx->ssize); |
655 | #else |
919 | else |
|
|
920 | #endif |
656 | Safefree (cctx->sptr); |
921 | Safefree (cctx->sptr); |
657 | #endif |
|
|
658 | |
922 | |
659 | Safefree (cctx); |
923 | Safefree (cctx); |
660 | } |
924 | } |
661 | |
925 | |
662 | static coro_cctx * |
926 | static coro_cctx * |
663 | cctx_get () |
927 | cctx_get (pTHX) |
664 | { |
928 | { |
665 | coro_cctx *cctx; |
|
|
666 | |
|
|
667 | if (cctx_first) |
929 | while (cctx_first) |
668 | { |
930 | { |
669 | cctx = cctx_first; |
931 | coro_cctx *cctx = cctx_first; |
670 | cctx_first = cctx->next; |
932 | cctx_first = cctx->next; |
671 | --cctx_idle; |
933 | --cctx_idle; |
672 | } |
934 | |
673 | else |
935 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
674 | { |
936 | return cctx; |
675 | cctx = cctx_new (); |
937 | |
676 | PL_op = PL_op->op_next; |
938 | cctx_destroy (cctx); |
677 | } |
939 | } |
678 | |
940 | |
679 | return cctx; |
941 | return cctx_new (); |
680 | } |
942 | } |
681 | |
943 | |
682 | static void |
944 | static void |
683 | cctx_put (coro_cctx *cctx) |
945 | cctx_put (coro_cctx *cctx) |
684 | { |
946 | { |
… | |
… | |
687 | { |
949 | { |
688 | coro_cctx *first = cctx_first; |
950 | coro_cctx *first = cctx_first; |
689 | cctx_first = first->next; |
951 | cctx_first = first->next; |
690 | --cctx_idle; |
952 | --cctx_idle; |
691 | |
953 | |
692 | assert (!first->inuse); |
|
|
693 | cctx_destroy (first); |
954 | cctx_destroy (first); |
694 | } |
955 | } |
695 | |
956 | |
696 | ++cctx_idle; |
957 | ++cctx_idle; |
697 | cctx->next = cctx_first; |
958 | cctx->next = cctx_first; |
698 | cctx_first = cctx; |
959 | cctx_first = cctx; |
699 | } |
960 | } |
700 | |
961 | |
701 | /* never call directly, always through the coro_state_transfer global variable */ |
962 | /** coroutine switching *****************************************************/ |
|
|
963 | |
702 | static void NOINLINE |
964 | static void NOINLINE |
|
|
965 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
966 | { |
|
|
967 | if (prev != next) |
|
|
968 | { |
|
|
969 | if (!(prev->flags & (CF_RUNNING | CF_NEW))) |
|
|
970 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
971 | |
|
|
972 | if (next->flags & CF_RUNNING) |
|
|
973 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
974 | |
|
|
975 | if (next->flags & CF_DESTROYED) |
|
|
976 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
977 | |
|
|
978 | if (PL_lex_state != LEX_NOTPARSING) |
|
|
979 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
|
|
980 | } |
|
|
981 | } |
|
|
982 | |
|
|
983 | /* always use the TRANSFER macro */ |
|
|
984 | static void NOINLINE |
703 | transfer (struct coro *prev, struct coro *next) |
985 | transfer (pTHX_ struct coro *prev, struct coro *next) |
704 | { |
986 | { |
705 | dSTACKLEVEL; |
987 | dSTACKLEVEL; |
706 | |
988 | |
707 | /* sometimes transfer is only called to set idle_sp */ |
989 | /* sometimes transfer is only called to set idle_sp */ |
708 | if (!next) |
990 | if (!next) |
709 | { |
991 | { |
710 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
992 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
711 | assert (((coro_cctx *)prev)->top_env = PL_top_env); /* just for the side effetc when assert is enabled */ |
993 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
712 | } |
994 | } |
713 | else if (prev != next) |
995 | else if (prev != next) |
714 | { |
996 | { |
715 | coro_cctx *prev__cctx; |
997 | coro_cctx *prev__cctx; |
716 | |
998 | |
717 | if (prev->flags & CF_NEW) |
999 | if (prev->flags & CF_NEW) |
718 | { |
1000 | { |
719 | /* create a new empty context */ |
1001 | /* create a new empty context */ |
720 | Newz (0, prev->cctx, 1, coro_cctx); |
1002 | Newz (0, prev->cctx, 1, coro_cctx); |
721 | prev->cctx->inuse = 1; |
|
|
722 | prev->flags &= ~CF_NEW; |
1003 | prev->flags &= ~CF_NEW; |
723 | prev->flags |= CF_RUNNING; |
1004 | prev->flags |= CF_RUNNING; |
724 | } |
1005 | } |
725 | |
|
|
726 | /*TODO: must not croak here */ |
|
|
727 | if (!prev->flags & CF_RUNNING) |
|
|
728 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
729 | |
|
|
730 | if (next->flags & CF_RUNNING) |
|
|
731 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
732 | |
1006 | |
733 | prev->flags &= ~CF_RUNNING; |
1007 | prev->flags &= ~CF_RUNNING; |
734 | next->flags |= CF_RUNNING; |
1008 | next->flags |= CF_RUNNING; |
735 | |
1009 | |
736 | LOCK; |
1010 | LOCK; |
… | |
… | |
738 | if (next->flags & CF_NEW) |
1012 | if (next->flags & CF_NEW) |
739 | { |
1013 | { |
740 | /* need to start coroutine */ |
1014 | /* need to start coroutine */ |
741 | next->flags &= ~CF_NEW; |
1015 | next->flags &= ~CF_NEW; |
742 | /* first get rid of the old state */ |
1016 | /* first get rid of the old state */ |
743 | save_perl (prev); |
1017 | save_perl (aTHX_ prev); |
744 | /* setup coroutine call */ |
1018 | /* setup coroutine call */ |
745 | setup_coro (next); |
1019 | coro_setup (aTHX_ next); |
746 | /* need a new stack */ |
|
|
747 | assert (!next->cctx); |
|
|
748 | } |
1020 | } |
749 | else |
1021 | else |
750 | { |
1022 | { |
751 | /* coroutine already started */ |
1023 | /* coroutine already started */ |
752 | save_perl (prev); |
1024 | save_perl (aTHX_ prev); |
753 | load_perl (next); |
1025 | load_perl (aTHX_ next); |
754 | } |
1026 | } |
755 | |
1027 | |
756 | prev__cctx = prev->cctx; |
1028 | prev__cctx = prev->cctx; |
757 | |
1029 | |
758 | /* possibly "free" the cctx */ |
1030 | /* possibly "free" the cctx */ |
759 | if (prev__cctx->idle_sp == STACKLEVEL) |
1031 | if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) |
760 | { |
1032 | { |
761 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1033 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
762 | assert (PL_top_env == prev__cctx->top_env); |
1034 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
763 | |
1035 | |
764 | prev->cctx = 0; |
1036 | prev->cctx = 0; |
765 | |
1037 | |
766 | cctx_put (prev__cctx); |
1038 | cctx_put (prev__cctx); |
767 | prev__cctx->inuse = 0; |
|
|
768 | } |
1039 | } |
769 | |
1040 | |
|
|
1041 | ++next->usecount; |
|
|
1042 | |
770 | if (!next->cctx) |
1043 | if (!next->cctx) |
771 | { |
|
|
772 | next->cctx = cctx_get (); |
1044 | next->cctx = cctx_get (aTHX); |
773 | assert (!next->cctx->inuse); |
|
|
774 | next->cctx->inuse = 1; |
|
|
775 | } |
|
|
776 | |
1045 | |
777 | if (prev__cctx != next->cctx) |
1046 | if (prev__cctx != next->cctx) |
778 | { |
1047 | { |
779 | prev__cctx->top_env = PL_top_env; |
1048 | prev__cctx->top_env = PL_top_env; |
780 | PL_top_env = next->cctx->top_env; |
1049 | PL_top_env = next->cctx->top_env; |
781 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1050 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
782 | } |
1051 | } |
783 | |
1052 | |
784 | free_coro_mortal (); |
1053 | free_coro_mortal (aTHX); |
785 | |
|
|
786 | UNLOCK; |
1054 | UNLOCK; |
787 | } |
1055 | } |
788 | } |
1056 | } |
789 | |
1057 | |
790 | struct transfer_args |
1058 | struct transfer_args |
791 | { |
1059 | { |
792 | struct coro *prev, *next; |
1060 | struct coro *prev, *next; |
793 | }; |
1061 | }; |
794 | |
1062 | |
795 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next) |
1063 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
|
|
1064 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
796 | |
1065 | |
|
|
1066 | /** high level stuff ********************************************************/ |
|
|
1067 | |
797 | static void |
1068 | static int |
798 | coro_state_destroy (struct coro *coro) |
1069 | coro_state_destroy (pTHX_ struct coro *coro) |
799 | { |
1070 | { |
800 | if (coro->refcnt--) |
1071 | if (coro->flags & CF_DESTROYED) |
801 | return; |
1072 | return 0; |
|
|
1073 | |
|
|
1074 | coro->flags |= CF_DESTROYED; |
|
|
1075 | |
|
|
1076 | if (coro->flags & CF_READY) |
|
|
1077 | { |
|
|
1078 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1079 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1080 | LOCK; |
|
|
1081 | --coro_nready; |
|
|
1082 | UNLOCK; |
|
|
1083 | } |
|
|
1084 | else |
|
|
1085 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
802 | |
1086 | |
803 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1087 | if (coro->mainstack && coro->mainstack != main_mainstack) |
804 | { |
1088 | { |
805 | struct coro temp; |
1089 | struct coro temp; |
806 | Zero (&temp, 1, struct coro); |
|
|
807 | temp.save = CORO_SAVE_ALL; |
|
|
808 | |
1090 | |
809 | if (coro->flags & CF_RUNNING) |
1091 | if (coro->flags & CF_RUNNING) |
810 | croak ("FATAL: tried to destroy currently running coroutine"); |
1092 | croak ("FATAL: tried to destroy currently running coroutine"); |
811 | |
1093 | |
812 | save_perl (&temp); |
1094 | save_perl (aTHX_ &temp); |
813 | load_perl (coro); |
1095 | load_perl (aTHX_ coro); |
814 | |
1096 | |
815 | coro_destroy_stacks (); |
1097 | coro_destroy (aTHX_ coro); |
816 | |
1098 | |
817 | load_perl (&temp); /* this will get rid of defsv etc.. */ |
1099 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
818 | |
1100 | |
819 | coro->mainstack = 0; |
1101 | coro->mainstack = 0; |
820 | } |
1102 | } |
821 | |
1103 | |
822 | cctx_destroy (coro->cctx); |
1104 | cctx_destroy (coro->cctx); |
823 | SvREFCNT_dec (coro->args); |
1105 | SvREFCNT_dec (coro->args); |
824 | Safefree (coro); |
1106 | |
|
|
1107 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1108 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1109 | if (coro == coro_first) coro_first = coro->next; |
|
|
1110 | |
|
|
1111 | return 1; |
825 | } |
1112 | } |
826 | |
1113 | |
827 | static int |
1114 | static int |
828 | coro_state_clear (pTHX_ SV *sv, MAGIC *mg) |
1115 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
829 | { |
1116 | { |
830 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1117 | struct coro *coro = (struct coro *)mg->mg_ptr; |
831 | mg->mg_ptr = 0; |
1118 | mg->mg_ptr = 0; |
832 | |
1119 | |
|
|
1120 | coro->hv = 0; |
|
|
1121 | |
|
|
1122 | if (--coro->refcnt < 0) |
|
|
1123 | { |
833 | coro_state_destroy (coro); |
1124 | coro_state_destroy (aTHX_ coro); |
|
|
1125 | Safefree (coro); |
|
|
1126 | } |
834 | |
1127 | |
835 | return 0; |
1128 | return 0; |
836 | } |
1129 | } |
837 | |
1130 | |
838 | static int |
1131 | static int |
… | |
… | |
845 | return 0; |
1138 | return 0; |
846 | } |
1139 | } |
847 | |
1140 | |
848 | static MGVTBL coro_state_vtbl = { |
1141 | static MGVTBL coro_state_vtbl = { |
849 | 0, 0, 0, 0, |
1142 | 0, 0, 0, 0, |
850 | coro_state_clear, |
1143 | coro_state_free, |
851 | 0, |
1144 | 0, |
852 | #ifdef MGf_DUP |
1145 | #ifdef MGf_DUP |
853 | coro_state_dup, |
1146 | coro_state_dup, |
854 | #else |
1147 | #else |
855 | # define MGf_DUP 0 |
1148 | # define MGf_DUP 0 |
856 | #endif |
1149 | #endif |
857 | }; |
1150 | }; |
858 | |
1151 | |
859 | static struct coro * |
|
|
860 | SvSTATE (SV *coro) |
|
|
861 | { |
|
|
862 | HV *stash; |
|
|
863 | MAGIC *mg; |
|
|
864 | |
|
|
865 | if (SvROK (coro)) |
|
|
866 | coro = SvRV (coro); |
|
|
867 | |
|
|
868 | stash = SvSTASH (coro); |
|
|
869 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
870 | { |
|
|
871 | /* very slow, but rare, check */ |
|
|
872 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
873 | croak ("Coro::State object required"); |
|
|
874 | } |
|
|
875 | |
|
|
876 | mg = SvMAGIC (coro); |
|
|
877 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
878 | return (struct coro *)mg->mg_ptr; |
|
|
879 | } |
|
|
880 | |
|
|
881 | static void |
1152 | static void |
882 | prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1153 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
883 | { |
1154 | { |
884 | ta->prev = SvSTATE (prev_sv); |
1155 | ta->prev = SvSTATE (prev_sv); |
885 | ta->next = SvSTATE (next_sv); |
1156 | ta->next = SvSTATE (next_sv); |
|
|
1157 | TRANSFER_CHECK (*ta); |
886 | } |
1158 | } |
887 | |
1159 | |
888 | static void |
1160 | static void |
889 | api_transfer (SV *prev_sv, SV *next_sv) |
1161 | api_transfer (SV *prev_sv, SV *next_sv) |
890 | { |
1162 | { |
|
|
1163 | dTHX; |
891 | struct transfer_args ta; |
1164 | struct transfer_args ta; |
892 | |
1165 | |
893 | prepare_transfer (&ta, prev_sv, next_sv); |
1166 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
894 | TRANSFER (ta); |
1167 | TRANSFER (ta); |
895 | } |
1168 | } |
896 | |
1169 | |
897 | static int |
|
|
898 | api_save (SV *coro_sv, int new_save) |
|
|
899 | { |
|
|
900 | struct coro *coro = SvSTATE (coro_sv); |
|
|
901 | int old_save = coro->save; |
|
|
902 | |
|
|
903 | if (new_save >= 0) |
|
|
904 | coro->save = new_save; |
|
|
905 | |
|
|
906 | return old_save; |
|
|
907 | } |
|
|
908 | |
|
|
909 | /** Coro ********************************************************************/ |
1170 | /** Coro ********************************************************************/ |
910 | |
1171 | |
911 | #define PRIO_MAX 3 |
|
|
912 | #define PRIO_HIGH 1 |
|
|
913 | #define PRIO_NORMAL 0 |
|
|
914 | #define PRIO_LOW -1 |
|
|
915 | #define PRIO_IDLE -3 |
|
|
916 | #define PRIO_MIN -4 |
|
|
917 | |
|
|
918 | /* for Coro.pm */ |
|
|
919 | static SV *coro_current; |
|
|
920 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
921 | static int coro_nready; |
|
|
922 | |
|
|
923 | static void |
1172 | static void |
924 | coro_enq (SV *coro_sv) |
1173 | coro_enq (pTHX_ SV *coro_sv) |
925 | { |
1174 | { |
926 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1175 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
927 | coro_nready++; |
|
|
928 | } |
1176 | } |
929 | |
1177 | |
930 | static SV * |
1178 | static SV * |
931 | coro_deq (int min_prio) |
1179 | coro_deq (pTHX_ int min_prio) |
932 | { |
1180 | { |
933 | int prio = PRIO_MAX - PRIO_MIN; |
1181 | int prio = PRIO_MAX - PRIO_MIN; |
934 | |
1182 | |
935 | min_prio -= PRIO_MIN; |
1183 | min_prio -= PRIO_MIN; |
936 | if (min_prio < 0) |
1184 | if (min_prio < 0) |
937 | min_prio = 0; |
1185 | min_prio = 0; |
938 | |
1186 | |
939 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1187 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
940 | if (AvFILLp (coro_ready [prio]) >= 0) |
1188 | if (AvFILLp (coro_ready [prio]) >= 0) |
941 | { |
|
|
942 | coro_nready--; |
|
|
943 | return av_shift (coro_ready [prio]); |
1189 | return av_shift (coro_ready [prio]); |
944 | } |
|
|
945 | |
1190 | |
946 | return 0; |
1191 | return 0; |
947 | } |
1192 | } |
948 | |
1193 | |
949 | static int |
1194 | static int |
950 | api_ready (SV *coro_sv) |
1195 | api_ready (SV *coro_sv) |
951 | { |
1196 | { |
|
|
1197 | dTHX; |
952 | struct coro *coro; |
1198 | struct coro *coro; |
953 | |
1199 | |
954 | if (SvROK (coro_sv)) |
1200 | if (SvROK (coro_sv)) |
955 | coro_sv = SvRV (coro_sv); |
1201 | coro_sv = SvRV (coro_sv); |
956 | |
1202 | |
… | |
… | |
960 | return 0; |
1206 | return 0; |
961 | |
1207 | |
962 | coro->flags |= CF_READY; |
1208 | coro->flags |= CF_READY; |
963 | |
1209 | |
964 | LOCK; |
1210 | LOCK; |
965 | coro_enq (SvREFCNT_inc (coro_sv)); |
1211 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1212 | ++coro_nready; |
966 | UNLOCK; |
1213 | UNLOCK; |
967 | |
1214 | |
968 | return 1; |
1215 | return 1; |
969 | } |
1216 | } |
970 | |
1217 | |
971 | static int |
1218 | static int |
972 | api_is_ready (SV *coro_sv) |
1219 | api_is_ready (SV *coro_sv) |
973 | { |
1220 | { |
|
|
1221 | dTHX; |
974 | return !!SvSTATE (coro_sv)->flags & CF_READY; |
1222 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
975 | } |
1223 | } |
976 | |
1224 | |
977 | static void |
1225 | static void |
978 | prepare_schedule (struct transfer_args *ta) |
1226 | prepare_schedule (pTHX_ struct transfer_args *ta) |
979 | { |
1227 | { |
980 | SV *prev, *next; |
1228 | SV *prev_sv, *next_sv; |
981 | |
1229 | |
982 | for (;;) |
1230 | for (;;) |
983 | { |
1231 | { |
984 | LOCK; |
1232 | LOCK; |
985 | next = coro_deq (PRIO_MIN); |
1233 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1234 | |
|
|
1235 | /* nothing to schedule: call the idle handler */ |
|
|
1236 | if (!next_sv) |
|
|
1237 | { |
|
|
1238 | dSP; |
|
|
1239 | UNLOCK; |
|
|
1240 | |
|
|
1241 | ENTER; |
|
|
1242 | SAVETMPS; |
|
|
1243 | |
|
|
1244 | PUSHMARK (SP); |
|
|
1245 | PUTBACK; |
|
|
1246 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1247 | |
|
|
1248 | FREETMPS; |
|
|
1249 | LEAVE; |
|
|
1250 | continue; |
|
|
1251 | } |
|
|
1252 | |
|
|
1253 | ta->next = SvSTATE (next_sv); |
|
|
1254 | |
|
|
1255 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1256 | if (ta->next->flags & CF_DESTROYED) |
|
|
1257 | { |
|
|
1258 | UNLOCK; |
|
|
1259 | SvREFCNT_dec (next_sv); |
|
|
1260 | /* coro_nready is already taken care of by destroy */ |
|
|
1261 | continue; |
|
|
1262 | } |
|
|
1263 | |
|
|
1264 | --coro_nready; |
986 | UNLOCK; |
1265 | UNLOCK; |
987 | |
|
|
988 | if (next) |
|
|
989 | break; |
1266 | break; |
990 | |
|
|
991 | { |
|
|
992 | dSP; |
|
|
993 | |
|
|
994 | ENTER; |
|
|
995 | SAVETMPS; |
|
|
996 | |
|
|
997 | PUSHMARK (SP); |
|
|
998 | PUTBACK; |
|
|
999 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1000 | |
|
|
1001 | FREETMPS; |
|
|
1002 | LEAVE; |
|
|
1003 | } |
1267 | } |
1004 | } |
|
|
1005 | |
|
|
1006 | prev = SvRV (coro_current); |
|
|
1007 | SvRV_set (coro_current, next); |
|
|
1008 | |
1268 | |
1009 | /* free this only after the transfer */ |
1269 | /* free this only after the transfer */ |
1010 | LOCK; |
1270 | prev_sv = SvRV (coro_current); |
1011 | free_coro_mortal (); |
|
|
1012 | UNLOCK; |
|
|
1013 | coro_mortal = prev; |
|
|
1014 | |
|
|
1015 | assert (!SvROK(prev));//D |
|
|
1016 | assert (!SvROK(next));//D |
|
|
1017 | |
|
|
1018 | ta->prev = SvSTATE (prev); |
1271 | ta->prev = SvSTATE (prev_sv); |
1019 | ta->next = SvSTATE (next); |
1272 | TRANSFER_CHECK (*ta); |
1020 | |
|
|
1021 | assert (ta->next->flags & CF_READY); |
1273 | assert (ta->next->flags & CF_READY); |
1022 | ta->next->flags &= ~CF_READY; |
1274 | ta->next->flags &= ~CF_READY; |
1023 | } |
1275 | SvRV_set (coro_current, next_sv); |
1024 | |
1276 | |
|
|
1277 | LOCK; |
|
|
1278 | free_coro_mortal (aTHX); |
|
|
1279 | coro_mortal = prev_sv; |
|
|
1280 | UNLOCK; |
|
|
1281 | } |
|
|
1282 | |
1025 | static void |
1283 | static void |
1026 | prepare_cede (struct transfer_args *ta) |
1284 | prepare_cede (pTHX_ struct transfer_args *ta) |
1027 | { |
1285 | { |
1028 | api_ready (coro_current); |
1286 | api_ready (coro_current); |
1029 | |
|
|
1030 | prepare_schedule (ta); |
1287 | prepare_schedule (aTHX_ ta); |
|
|
1288 | } |
|
|
1289 | |
|
|
1290 | static int |
|
|
1291 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1292 | { |
|
|
1293 | if (coro_nready) |
|
|
1294 | { |
|
|
1295 | SV *prev = SvRV (coro_current); |
|
|
1296 | prepare_schedule (aTHX_ ta); |
|
|
1297 | api_ready (prev); |
|
|
1298 | return 1; |
|
|
1299 | } |
|
|
1300 | else |
|
|
1301 | return 0; |
1031 | } |
1302 | } |
1032 | |
1303 | |
1033 | static void |
1304 | static void |
1034 | api_schedule (void) |
1305 | api_schedule (void) |
1035 | { |
1306 | { |
|
|
1307 | dTHX; |
1036 | struct transfer_args ta; |
1308 | struct transfer_args ta; |
1037 | |
1309 | |
1038 | prepare_schedule (&ta); |
1310 | prepare_schedule (aTHX_ &ta); |
1039 | TRANSFER (ta); |
1311 | TRANSFER (ta); |
1040 | } |
1312 | } |
1041 | |
1313 | |
1042 | static void |
1314 | static int |
1043 | api_cede (void) |
1315 | api_cede (void) |
1044 | { |
1316 | { |
|
|
1317 | dTHX; |
1045 | struct transfer_args ta; |
1318 | struct transfer_args ta; |
1046 | |
1319 | |
1047 | prepare_cede (&ta); |
1320 | prepare_cede (aTHX_ &ta); |
|
|
1321 | |
|
|
1322 | if (ta.prev != ta.next) |
|
|
1323 | { |
1048 | TRANSFER (ta); |
1324 | TRANSFER (ta); |
|
|
1325 | return 1; |
|
|
1326 | } |
|
|
1327 | else |
|
|
1328 | return 0; |
1049 | } |
1329 | } |
1050 | |
1330 | |
|
|
1331 | static int |
|
|
1332 | api_cede_notself (void) |
|
|
1333 | { |
|
|
1334 | dTHX; |
|
|
1335 | struct transfer_args ta; |
|
|
1336 | |
|
|
1337 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1338 | { |
|
|
1339 | TRANSFER (ta); |
|
|
1340 | return 1; |
|
|
1341 | } |
|
|
1342 | else |
|
|
1343 | return 0; |
|
|
1344 | } |
|
|
1345 | |
|
|
1346 | static void |
|
|
1347 | api_trace (SV *coro_sv, int flags) |
|
|
1348 | { |
|
|
1349 | dTHX; |
|
|
1350 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1351 | |
|
|
1352 | if (flags & CC_TRACE) |
|
|
1353 | { |
|
|
1354 | if (!coro->cctx) |
|
|
1355 | coro->cctx = cctx_new (); |
|
|
1356 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1357 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1358 | |
|
|
1359 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1360 | } |
|
|
1361 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1362 | { |
|
|
1363 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1364 | |
|
|
1365 | if (coro->flags & CF_RUNNING) |
|
|
1366 | PL_runops = RUNOPS_DEFAULT; |
|
|
1367 | else |
|
|
1368 | coro->runops = RUNOPS_DEFAULT; |
|
|
1369 | } |
|
|
1370 | } |
|
|
1371 | |
1051 | MODULE = Coro::State PACKAGE = Coro::State |
1372 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1052 | |
1373 | |
1053 | PROTOTYPES: DISABLE |
1374 | PROTOTYPES: DISABLE |
1054 | |
1375 | |
1055 | BOOT: |
1376 | BOOT: |
1056 | { |
1377 | { |
1057 | #ifdef USE_ITHREADS |
1378 | #ifdef USE_ITHREADS |
1058 | MUTEX_INIT (&coro_mutex); |
1379 | MUTEX_INIT (&coro_mutex); |
1059 | #endif |
1380 | #endif |
1060 | BOOT_PAGESIZE; |
1381 | BOOT_PAGESIZE; |
1061 | |
1382 | |
|
|
1383 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1384 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1385 | |
1062 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1386 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1063 | |
1387 | |
|
|
1388 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
|
|
1389 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1064 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1390 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1065 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
|
|
1066 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1067 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1068 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1391 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1069 | |
1392 | |
1070 | main_mainstack = PL_mainstack; |
1393 | main_mainstack = PL_mainstack; |
|
|
1394 | main_top_env = PL_top_env; |
|
|
1395 | |
|
|
1396 | while (main_top_env->je_prev) |
|
|
1397 | main_top_env = main_top_env->je_prev; |
1071 | |
1398 | |
1072 | coroapi.ver = CORO_API_VERSION; |
1399 | coroapi.ver = CORO_API_VERSION; |
1073 | coroapi.transfer = api_transfer; |
1400 | coroapi.transfer = api_transfer; |
1074 | |
1401 | |
1075 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1402 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
… | |
… | |
1082 | struct coro *coro; |
1409 | struct coro *coro; |
1083 | HV *hv; |
1410 | HV *hv; |
1084 | int i; |
1411 | int i; |
1085 | |
1412 | |
1086 | Newz (0, coro, 1, struct coro); |
1413 | Newz (0, coro, 1, struct coro); |
1087 | coro->args = newAV (); |
1414 | coro->args = newAV (); |
1088 | coro->save = CORO_SAVE_ALL; |
|
|
1089 | coro->flags = CF_NEW; |
1415 | coro->flags = CF_NEW; |
1090 | |
1416 | |
|
|
1417 | if (coro_first) coro_first->prev = coro; |
|
|
1418 | coro->next = coro_first; |
|
|
1419 | coro_first = coro; |
|
|
1420 | |
1091 | hv = newHV (); |
1421 | coro->hv = hv = newHV (); |
1092 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1422 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1093 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1423 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1094 | |
1424 | |
1095 | for (i = 1; i < items; i++) |
1425 | for (i = 1; i < items; i++) |
1096 | av_push (coro->args, newSVsv (ST (i))); |
1426 | av_push (coro->args, newSVsv (ST (i))); |
1097 | } |
1427 | } |
1098 | OUTPUT: |
1428 | OUTPUT: |
1099 | RETVAL |
1429 | RETVAL |
1100 | |
1430 | |
1101 | int |
1431 | # these not obviously related functions are all rolled into the same xs |
1102 | save (SV *coro, int new_save = -1) |
1432 | # function to increase chances that they all will call transfer with the same |
1103 | CODE: |
1433 | # stack offset |
1104 | RETVAL = api_save (coro, new_save); |
|
|
1105 | OUTPUT: |
|
|
1106 | RETVAL |
|
|
1107 | |
|
|
1108 | void |
1434 | void |
1109 | _set_stacklevel (...) |
1435 | _set_stacklevel (...) |
1110 | ALIAS: |
1436 | ALIAS: |
1111 | Coro::State::transfer = 1 |
1437 | Coro::State::transfer = 1 |
1112 | Coro::schedule = 2 |
1438 | Coro::schedule = 2 |
1113 | Coro::cede = 3 |
1439 | Coro::cede = 3 |
|
|
1440 | Coro::cede_notself = 4 |
1114 | CODE: |
1441 | CODE: |
1115 | { |
1442 | { |
1116 | struct transfer_args ta; |
1443 | struct transfer_args ta; |
1117 | |
1444 | |
1118 | switch (ix) |
1445 | switch (ix) |
… | |
… | |
1124 | |
1451 | |
1125 | case 1: |
1452 | case 1: |
1126 | if (items != 2) |
1453 | if (items != 2) |
1127 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1454 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1128 | |
1455 | |
1129 | prepare_transfer (&ta, ST (0), ST (1)); |
1456 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1130 | break; |
1457 | break; |
1131 | |
1458 | |
1132 | case 2: |
1459 | case 2: |
1133 | prepare_schedule (&ta); |
1460 | prepare_schedule (aTHX_ &ta); |
1134 | break; |
1461 | break; |
1135 | |
1462 | |
1136 | case 3: |
1463 | case 3: |
1137 | prepare_cede (&ta); |
1464 | prepare_cede (aTHX_ &ta); |
|
|
1465 | break; |
|
|
1466 | |
|
|
1467 | case 4: |
|
|
1468 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1469 | XSRETURN_EMPTY; |
|
|
1470 | |
1138 | break; |
1471 | break; |
1139 | } |
1472 | } |
1140 | |
1473 | |
|
|
1474 | BARRIER; |
1141 | TRANSFER (ta); |
1475 | TRANSFER (ta); |
1142 | } |
|
|
1143 | |
1476 | |
1144 | void |
1477 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
1145 | _clone_state_from (SV *dst, SV *src) |
1478 | XSRETURN_YES; |
|
|
1479 | } |
|
|
1480 | |
|
|
1481 | bool |
|
|
1482 | _destroy (SV *coro_sv) |
1146 | CODE: |
1483 | CODE: |
1147 | { |
1484 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1148 | struct coro *coro_src = SvSTATE (src); |
1485 | OUTPUT: |
1149 | |
1486 | RETVAL |
1150 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1151 | |
|
|
1152 | ++coro_src->refcnt; |
|
|
1153 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1154 | } |
|
|
1155 | |
1487 | |
1156 | void |
1488 | void |
1157 | _exit (code) |
1489 | _exit (code) |
1158 | int code |
1490 | int code |
1159 | PROTOTYPE: $ |
1491 | PROTOTYPE: $ |
1160 | CODE: |
1492 | CODE: |
1161 | _exit (code); |
1493 | _exit (code); |
1162 | |
1494 | |
1163 | int |
1495 | int |
|
|
1496 | cctx_stacksize (int new_stacksize = 0) |
|
|
1497 | CODE: |
|
|
1498 | RETVAL = coro_stacksize; |
|
|
1499 | if (new_stacksize) |
|
|
1500 | coro_stacksize = new_stacksize; |
|
|
1501 | OUTPUT: |
|
|
1502 | RETVAL |
|
|
1503 | |
|
|
1504 | int |
1164 | cctx_count () |
1505 | cctx_count () |
1165 | CODE: |
1506 | CODE: |
1166 | RETVAL = cctx_count; |
1507 | RETVAL = cctx_count; |
1167 | OUTPUT: |
1508 | OUTPUT: |
1168 | RETVAL |
1509 | RETVAL |
… | |
… | |
1172 | CODE: |
1513 | CODE: |
1173 | RETVAL = cctx_idle; |
1514 | RETVAL = cctx_idle; |
1174 | OUTPUT: |
1515 | OUTPUT: |
1175 | RETVAL |
1516 | RETVAL |
1176 | |
1517 | |
|
|
1518 | void |
|
|
1519 | list () |
|
|
1520 | PPCODE: |
|
|
1521 | { |
|
|
1522 | struct coro *coro; |
|
|
1523 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1524 | if (coro->hv) |
|
|
1525 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1526 | } |
|
|
1527 | |
|
|
1528 | void |
|
|
1529 | call (Coro::State coro, SV *coderef) |
|
|
1530 | ALIAS: |
|
|
1531 | eval = 1 |
|
|
1532 | CODE: |
|
|
1533 | { |
|
|
1534 | if (coro->mainstack) |
|
|
1535 | { |
|
|
1536 | struct coro temp; |
|
|
1537 | Zero (&temp, 1, struct coro); |
|
|
1538 | |
|
|
1539 | if (!(coro->flags & CF_RUNNING)) |
|
|
1540 | { |
|
|
1541 | save_perl (aTHX_ &temp); |
|
|
1542 | load_perl (aTHX_ coro); |
|
|
1543 | } |
|
|
1544 | |
|
|
1545 | { |
|
|
1546 | dSP; |
|
|
1547 | ENTER; |
|
|
1548 | SAVETMPS; |
|
|
1549 | PUSHMARK (SP); |
|
|
1550 | PUTBACK; |
|
|
1551 | if (ix) |
|
|
1552 | eval_sv (coderef, 0); |
|
|
1553 | else |
|
|
1554 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1555 | SPAGAIN; |
|
|
1556 | FREETMPS; |
|
|
1557 | LEAVE; |
|
|
1558 | PUTBACK; |
|
|
1559 | } |
|
|
1560 | |
|
|
1561 | if (!(coro->flags & CF_RUNNING)) |
|
|
1562 | { |
|
|
1563 | save_perl (aTHX_ coro); |
|
|
1564 | load_perl (aTHX_ &temp); |
|
|
1565 | } |
|
|
1566 | } |
|
|
1567 | } |
|
|
1568 | |
|
|
1569 | SV * |
|
|
1570 | is_ready (Coro::State coro) |
|
|
1571 | PROTOTYPE: $ |
|
|
1572 | ALIAS: |
|
|
1573 | is_ready = CF_READY |
|
|
1574 | is_running = CF_RUNNING |
|
|
1575 | is_new = CF_NEW |
|
|
1576 | is_destroyed = CF_DESTROYED |
|
|
1577 | CODE: |
|
|
1578 | RETVAL = boolSV (coro->flags & ix); |
|
|
1579 | OUTPUT: |
|
|
1580 | RETVAL |
|
|
1581 | |
|
|
1582 | void |
|
|
1583 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1584 | |
|
|
1585 | SV * |
|
|
1586 | has_stack (Coro::State coro) |
|
|
1587 | PROTOTYPE: $ |
|
|
1588 | CODE: |
|
|
1589 | RETVAL = boolSV (!!coro->cctx); |
|
|
1590 | OUTPUT: |
|
|
1591 | RETVAL |
|
|
1592 | |
|
|
1593 | int |
|
|
1594 | is_traced (Coro::State coro) |
|
|
1595 | PROTOTYPE: $ |
|
|
1596 | CODE: |
|
|
1597 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1598 | OUTPUT: |
|
|
1599 | RETVAL |
|
|
1600 | |
|
|
1601 | IV |
|
|
1602 | rss (Coro::State coro) |
|
|
1603 | PROTOTYPE: $ |
|
|
1604 | ALIAS: |
|
|
1605 | usecount = 1 |
|
|
1606 | CODE: |
|
|
1607 | switch (ix) |
|
|
1608 | { |
|
|
1609 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
1610 | case 1: RETVAL = coro->usecount; break; |
|
|
1611 | } |
|
|
1612 | OUTPUT: |
|
|
1613 | RETVAL |
|
|
1614 | |
|
|
1615 | |
1177 | MODULE = Coro::State PACKAGE = Coro |
1616 | MODULE = Coro::State PACKAGE = Coro |
1178 | |
1617 | |
1179 | BOOT: |
1618 | BOOT: |
1180 | { |
1619 | { |
1181 | int i; |
1620 | int i; |
|
|
1621 | |
|
|
1622 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1623 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1624 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
|
|
1625 | |
|
|
1626 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1627 | SvREADONLY_on (coro_current); |
1182 | |
1628 | |
1183 | coro_stash = gv_stashpv ("Coro", TRUE); |
1629 | coro_stash = gv_stashpv ("Coro", TRUE); |
1184 | |
1630 | |
1185 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1631 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1186 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1632 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1187 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1633 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1188 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1634 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1189 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1635 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1190 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1636 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1191 | |
1637 | |
1192 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1193 | SvREADONLY_on (coro_current); |
|
|
1194 | |
|
|
1195 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1638 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1196 | coro_ready[i] = newAV (); |
1639 | coro_ready[i] = newAV (); |
1197 | |
1640 | |
1198 | { |
1641 | { |
1199 | SV *sv = perl_get_sv("Coro::API", 1); |
1642 | SV *sv = perl_get_sv("Coro::API", 1); |
1200 | |
1643 | |
1201 | coroapi.schedule = api_schedule; |
1644 | coroapi.schedule = api_schedule; |
1202 | coroapi.save = api_save; |
|
|
1203 | coroapi.cede = api_cede; |
1645 | coroapi.cede = api_cede; |
|
|
1646 | coroapi.cede_notself = api_cede_notself; |
1204 | coroapi.ready = api_ready; |
1647 | coroapi.ready = api_ready; |
1205 | coroapi.is_ready = api_is_ready; |
1648 | coroapi.is_ready = api_is_ready; |
1206 | coroapi.nready = &coro_nready; |
1649 | coroapi.nready = &coro_nready; |
1207 | coroapi.current = coro_current; |
1650 | coroapi.current = coro_current; |
1208 | |
1651 | |
1209 | GCoroAPI = &coroapi; |
1652 | GCoroAPI = &coroapi; |
1210 | sv_setiv (sv, (IV)&coroapi); |
1653 | sv_setiv (sv, (IV)&coroapi); |
1211 | SvREADONLY_on (sv); |
1654 | SvREADONLY_on (sv); |
1212 | } |
1655 | } |
… | |
… | |
1236 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1679 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1237 | |
1680 | |
1238 | coro->prio = newprio; |
1681 | coro->prio = newprio; |
1239 | } |
1682 | } |
1240 | } |
1683 | } |
|
|
1684 | OUTPUT: |
|
|
1685 | RETVAL |
1241 | |
1686 | |
1242 | SV * |
1687 | SV * |
1243 | ready (SV *self) |
1688 | ready (SV *self) |
1244 | PROTOTYPE: $ |
1689 | PROTOTYPE: $ |
1245 | CODE: |
1690 | CODE: |
1246 | RETVAL = boolSV (api_ready (self)); |
1691 | RETVAL = boolSV (api_ready (self)); |
1247 | OUTPUT: |
1692 | OUTPUT: |
1248 | RETVAL |
1693 | RETVAL |
1249 | |
1694 | |
1250 | SV * |
|
|
1251 | is_ready (SV *self) |
|
|
1252 | PROTOTYPE: $ |
|
|
1253 | CODE: |
|
|
1254 | RETVAL = boolSV (api_is_ready (self)); |
|
|
1255 | OUTPUT: |
|
|
1256 | RETVAL |
|
|
1257 | |
|
|
1258 | int |
1695 | int |
1259 | nready (...) |
1696 | nready (...) |
1260 | PROTOTYPE: |
1697 | PROTOTYPE: |
1261 | CODE: |
1698 | CODE: |
1262 | RETVAL = coro_nready; |
1699 | RETVAL = coro_nready; |
1263 | OUTPUT: |
1700 | OUTPUT: |
1264 | RETVAL |
1701 | RETVAL |
1265 | |
1702 | |
|
|
1703 | # for async_pool speedup |
|
|
1704 | void |
|
|
1705 | _pool_1 (SV *cb) |
|
|
1706 | CODE: |
|
|
1707 | { |
|
|
1708 | struct coro *coro = SvSTATE (coro_current); |
|
|
1709 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1710 | AV *defav = GvAV (PL_defgv); |
|
|
1711 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1712 | AV *invoke_av; |
|
|
1713 | int i, len; |
|
|
1714 | |
|
|
1715 | if (!invoke) |
|
|
1716 | croak ("\3terminate\2\n"); |
|
|
1717 | |
|
|
1718 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1719 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
|
|
1720 | |
|
|
1721 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1722 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1723 | |
|
|
1724 | invoke_av = (AV *)SvRV (invoke); |
|
|
1725 | len = av_len (invoke_av); |
|
|
1726 | |
|
|
1727 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1728 | |
|
|
1729 | if (len > 0) |
|
|
1730 | { |
|
|
1731 | av_fill (defav, len - 1); |
|
|
1732 | for (i = 0; i < len; ++i) |
|
|
1733 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1734 | } |
|
|
1735 | |
|
|
1736 | SvREFCNT_dec (invoke); |
|
|
1737 | } |
|
|
1738 | |
|
|
1739 | void |
|
|
1740 | _pool_2 (SV *cb) |
|
|
1741 | CODE: |
|
|
1742 | { |
|
|
1743 | struct coro *coro = SvSTATE (coro_current); |
|
|
1744 | |
|
|
1745 | sv_setsv (cb, &PL_sv_undef); |
|
|
1746 | |
|
|
1747 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1748 | coro->saved_deffh = 0; |
|
|
1749 | |
|
|
1750 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1751 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1752 | croak ("\3terminate\2\n"); |
|
|
1753 | |
|
|
1754 | av_clear (GvAV (PL_defgv)); |
|
|
1755 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1756 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1757 | |
|
|
1758 | coro->prio = 0; |
|
|
1759 | |
|
|
1760 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1761 | api_trace (coro_current, 0); |
|
|
1762 | |
|
|
1763 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1764 | } |
|
|
1765 | |
|
|
1766 | |
1266 | MODULE = Coro::State PACKAGE = Coro::AIO |
1767 | MODULE = Coro::State PACKAGE = Coro::AIO |
1267 | |
1768 | |
1268 | SV * |
1769 | SV * |
1269 | _get_state () |
1770 | _get_state () |
1270 | CODE: |
1771 | CODE: |