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 |
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4 | #define PERL_EXT |
2 | |
5 | |
3 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
4 | #include "perl.h" |
7 | #include "perl.h" |
5 | #include "XSUB.h" |
8 | #include "XSUB.h" |
6 | |
9 | |
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31 | #else |
34 | #else |
32 | # define PAGESIZE 0 |
35 | # define PAGESIZE 0 |
33 | # define BOOT_PAGESIZE (void)0 |
36 | # define BOOT_PAGESIZE (void)0 |
34 | #endif |
37 | #endif |
35 | |
38 | |
36 | #if USE_VALGRIND |
39 | #if CORO_USE_VALGRIND |
37 | # include <valgrind/valgrind.h> |
40 | # include <valgrind/valgrind.h> |
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41 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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42 | #else |
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43 | # define REGISTER_STACK(cctx,start,end) |
38 | #endif |
44 | #endif |
39 | |
45 | |
40 | /* the maximum number of idle cctx that will be pooled */ |
46 | /* the maximum number of idle cctx that will be pooled */ |
41 | #define MAX_IDLE_CCTX 8 |
47 | #define MAX_IDLE_CCTX 8 |
42 | |
48 | |
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70 | /* 5.8.7 */ |
76 | /* 5.8.7 */ |
71 | #ifndef SvRV_set |
77 | #ifndef SvRV_set |
72 | # define SvRV_set(s,v) SvRV(s) = (v) |
78 | # define SvRV_set(s,v) SvRV(s) = (v) |
73 | #endif |
79 | #endif |
74 | |
80 | |
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81 | /* 5.8.8 */ |
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82 | #ifndef GV_NOTQUAL |
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83 | # define GV_NOTQUAL 0 |
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84 | #endif |
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85 | #ifndef newSV |
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86 | # define newSV(l) NEWSV(0,l) |
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87 | #endif |
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88 | |
75 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
89 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
76 | # undef STACKGUARD |
90 | # undef CORO_STACKGUARD |
77 | #endif |
91 | #endif |
78 | |
92 | |
79 | #ifndef STACKGUARD |
93 | #ifndef CORO_STACKGUARD |
80 | # define STACKGUARD 0 |
94 | # define CORO_STACKGUARD 0 |
81 | #endif |
95 | #endif |
82 | |
96 | |
83 | /* prefer perl internal functions over our own? */ |
97 | /* prefer perl internal functions over our own? */ |
84 | #ifndef PREFER_PERL_FUNCTIONS |
98 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
85 | # define PREFER_PERL_FUNCTIONS 0 |
99 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
86 | #endif |
100 | #endif |
87 | |
101 | |
88 | /* The next macro should declare a variable stacklevel that contains and approximation |
102 | /* 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 |
103 | * portable way as possible. */ |
90 | * and should be unique. */ |
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91 | #define dSTACKLEVEL int stacklevel |
104 | #define dSTACKLEVEL volatile char stacklevel |
92 | #define STACKLEVEL ((void *)&stacklevel) |
105 | #define STACKLEVEL ((void *)&stacklevel) |
93 | |
106 | |
94 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
107 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
95 | |
108 | |
96 | #if __GNUC__ >= 3 |
109 | #if __GNUC__ >= 3 |
97 | # define attribute(x) __attribute__(x) |
110 | # define attribute(x) __attribute__(x) |
98 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
111 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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112 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
99 | #else |
113 | #else |
100 | # define attribute(x) |
114 | # define attribute(x) |
101 | # define BARRIER |
115 | # define BARRIER |
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116 | # define expect(expr,value) (expr) |
102 | #endif |
117 | #endif |
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118 | |
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119 | #define expect_false(expr) expect ((expr) != 0, 0) |
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120 | #define expect_true(expr) expect ((expr) != 0, 1) |
103 | |
121 | |
104 | #define NOINLINE attribute ((noinline)) |
122 | #define NOINLINE attribute ((noinline)) |
105 | |
123 | |
106 | #include "CoroAPI.h" |
124 | #include "CoroAPI.h" |
107 | |
125 | |
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112 | #else |
130 | #else |
113 | # define LOCK (void)0 |
131 | # define LOCK (void)0 |
114 | # define UNLOCK (void)0 |
132 | # define UNLOCK (void)0 |
115 | #endif |
133 | #endif |
116 | |
134 | |
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135 | #define strpair(const) const, sizeof (const) - 1 |
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136 | |
117 | /* helper storage struct for Coro::AIO */ |
137 | /* helper storage struct for Coro::AIO */ |
118 | struct io_state |
138 | struct io_state |
119 | { |
139 | { |
120 | int errorno; |
140 | int errorno; |
121 | I32 laststype; |
141 | I32 laststype; |
122 | int laststatval; |
142 | int laststatval; |
123 | Stat_t statcache; |
143 | Stat_t statcache; |
124 | }; |
144 | }; |
125 | |
145 | |
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146 | static size_t coro_stacksize = CORO_STACKSIZE; |
126 | static struct CoroAPI coroapi; |
147 | static struct CoroAPI coroapi; |
127 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
148 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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149 | static JMPENV *main_top_env; |
128 | static HV *coro_state_stash, *coro_stash; |
150 | static HV *coro_state_stash, *coro_stash; |
129 | static SV *coro_mortal; /* will be freed after next transfer */ |
151 | static SV *coro_mortal; /* will be freed after next transfer */ |
130 | |
152 | |
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153 | static GV *irsgv; /* $/ */ |
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154 | static GV *stdoutgv; /* *STDOUT */ |
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155 | |
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156 | static HV *hv_sig; /* %SIG */ |
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157 | static SV *sv_diehook; |
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158 | static SV *sv_warnhook; |
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159 | |
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160 | /* async_pool helper stuff */ |
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161 | static SV *sv_pool_rss; |
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162 | static SV *sv_pool_size; |
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163 | static AV *av_async_pool; |
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164 | |
131 | static struct coro_cctx *cctx_first; |
165 | static struct coro_cctx *cctx_first; |
132 | static int cctx_count, cctx_idle; |
166 | static int cctx_count, cctx_idle; |
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167 | |
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168 | enum { |
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169 | CC_MAPPED = 0x01, |
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170 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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171 | CC_TRACE = 0x04, |
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172 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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173 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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174 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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175 | }; |
133 | |
176 | |
134 | /* this is a structure representing a c-level coroutine */ |
177 | /* this is a structure representing a c-level coroutine */ |
135 | typedef struct coro_cctx { |
178 | typedef struct coro_cctx { |
136 | struct coro_cctx *next; |
179 | struct coro_cctx *next; |
137 | |
180 | |
138 | /* the stack */ |
181 | /* the stack */ |
139 | void *sptr; |
182 | void *sptr; |
140 | long ssize; /* positive == mmap, otherwise malloc */ |
183 | size_t ssize; |
141 | |
184 | |
142 | /* cpu state */ |
185 | /* cpu state */ |
143 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
186 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
144 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
187 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
145 | JMPENV *top_env; |
188 | JMPENV *top_env; |
146 | coro_context cctx; |
189 | coro_context cctx; |
147 | |
190 | |
148 | int inuse; |
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149 | |
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150 | #if USE_VALGRIND |
191 | #if CORO_USE_VALGRIND |
151 | int valgrind_id; |
192 | int valgrind_id; |
152 | #endif |
193 | #endif |
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194 | unsigned char flags; |
153 | } coro_cctx; |
195 | } coro_cctx; |
154 | |
196 | |
155 | enum { |
197 | enum { |
156 | CF_RUNNING = 0x0001, /* coroutine is running */ |
198 | CF_RUNNING = 0x0001, /* coroutine is running */ |
157 | CF_READY = 0x0002, /* coroutine is ready */ |
199 | CF_READY = 0x0002, /* coroutine is ready */ |
158 | CF_NEW = 0x0004, /* has never been switched to */ |
200 | CF_NEW = 0x0004, /* has never been switched to */ |
159 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
201 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
160 | }; |
202 | }; |
161 | |
203 | |
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204 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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205 | typedef struct { |
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206 | SV *defsv; |
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207 | AV *defav; |
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208 | SV *errsv; |
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209 | SV *irsgv; |
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210 | #define VAR(name,type) type name; |
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211 | # include "state.h" |
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212 | #undef VAR |
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213 | } perl_slots; |
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214 | |
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215 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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216 | |
162 | /* this is a structure representing a perl-level coroutine */ |
217 | /* this is a structure representing a perl-level coroutine */ |
163 | struct coro { |
218 | struct coro { |
164 | /* the c coroutine allocated to this perl coroutine, if any */ |
219 | /* the c coroutine allocated to this perl coroutine, if any */ |
165 | coro_cctx *cctx; |
220 | coro_cctx *cctx; |
166 | |
221 | |
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222 | /* process data */ |
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223 | AV *mainstack; |
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224 | perl_slots *slot; /* basically the saved sp */ |
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225 | |
167 | /* data associated with this coroutine (initial args) */ |
226 | /* data associated with this coroutine (initial args) */ |
168 | AV *args; |
227 | AV *args; |
169 | int refcnt; |
228 | int refcnt; |
170 | int save; /* CORO_SAVE flags */ |
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171 | int flags; /* CF_ flags */ |
229 | int flags; /* CF_ flags */ |
172 | |
230 | |
173 | /* optionally saved, might be zero */ |
231 | /* statistics */ |
174 | AV *defav; /* @_ */ |
232 | int usecount; /* number of transfers to this coro */ |
175 | SV *defsv; /* $_ */ |
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176 | SV *errsv; /* $@ */ |
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177 | SV *irssv; /* $/ */ |
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178 | SV *irssv_sv; /* real $/ cache */ |
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179 | |
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180 | #define VAR(name,type) type name; |
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181 | # include "state.h" |
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182 | #undef VAR |
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183 | |
233 | |
184 | /* coro process data */ |
234 | /* coro process data */ |
185 | int prio; |
235 | int prio; |
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236 | SV *throw; |
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237 | |
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238 | /* async_pool */ |
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239 | SV *saved_deffh; |
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240 | |
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241 | /* linked list */ |
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242 | struct coro *next, *prev; |
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243 | HV *hv; /* the perl hash associated with this coro, if any */ |
186 | }; |
244 | }; |
187 | |
245 | |
188 | typedef struct coro *Coro__State; |
246 | typedef struct coro *Coro__State; |
189 | typedef struct coro *Coro__State_or_hashref; |
247 | typedef struct coro *Coro__State_or_hashref; |
190 | |
248 | |
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249 | /** Coro ********************************************************************/ |
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250 | |
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251 | #define PRIO_MAX 3 |
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252 | #define PRIO_HIGH 1 |
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253 | #define PRIO_NORMAL 0 |
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254 | #define PRIO_LOW -1 |
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255 | #define PRIO_IDLE -3 |
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256 | #define PRIO_MIN -4 |
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257 | |
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258 | /* for Coro.pm */ |
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259 | static SV *coro_current; |
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260 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
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261 | static int coro_nready; |
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262 | static struct coro *coro_first; |
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263 | |
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264 | /** lowlevel stuff **********************************************************/ |
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265 | |
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266 | static SV * |
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267 | coro_get_sv (const char *name, int create) |
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268 | { |
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269 | #if PERL_VERSION_ATLEAST (5,9,0) |
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270 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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271 | get_sv (name, create); |
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272 | #endif |
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273 | return get_sv (name, create); |
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274 | } |
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275 | |
191 | static AV * |
276 | static AV * |
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277 | coro_get_av (const char *name, int create) |
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278 | { |
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279 | #if PERL_VERSION_ATLEAST (5,9,0) |
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280 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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281 | get_av (name, create); |
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282 | #endif |
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283 | return get_av (name, create); |
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284 | } |
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285 | |
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286 | static HV * |
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287 | coro_get_hv (const char *name, int create) |
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288 | { |
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289 | #if PERL_VERSION_ATLEAST (5,9,0) |
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290 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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291 | get_hv (name, create); |
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292 | #endif |
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293 | return get_hv (name, create); |
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294 | } |
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295 | |
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296 | static AV * |
192 | coro_clone_padlist (CV *cv) |
297 | coro_clone_padlist (pTHX_ CV *cv) |
193 | { |
298 | { |
194 | AV *padlist = CvPADLIST (cv); |
299 | AV *padlist = CvPADLIST (cv); |
195 | AV *newpadlist, *newpad; |
300 | AV *newpadlist, *newpad; |
196 | |
301 | |
197 | newpadlist = newAV (); |
302 | newpadlist = newAV (); |
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209 | |
314 | |
210 | return newpadlist; |
315 | return newpadlist; |
211 | } |
316 | } |
212 | |
317 | |
213 | static void |
318 | static void |
214 | free_padlist (AV *padlist) |
319 | free_padlist (pTHX_ AV *padlist) |
215 | { |
320 | { |
216 | /* may be during global destruction */ |
321 | /* may be during global destruction */ |
217 | if (SvREFCNT (padlist)) |
322 | if (SvREFCNT (padlist)) |
218 | { |
323 | { |
219 | I32 i = AvFILLp (padlist); |
324 | I32 i = AvFILLp (padlist); |
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240 | AV *padlist; |
345 | AV *padlist; |
241 | AV *av = (AV *)mg->mg_obj; |
346 | AV *av = (AV *)mg->mg_obj; |
242 | |
347 | |
243 | /* casting is fun. */ |
348 | /* casting is fun. */ |
244 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
349 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
245 | free_padlist (padlist); |
350 | free_padlist (aTHX_ padlist); |
246 | |
351 | |
247 | SvREFCNT_dec (av); |
352 | SvREFCNT_dec (av); |
248 | |
353 | |
249 | return 0; |
354 | return 0; |
250 | } |
355 | } |
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258 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
363 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
259 | ? SvMAGIC (cv) \ |
364 | ? SvMAGIC (cv) \ |
260 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
365 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
261 | : 0 |
366 | : 0 |
262 | |
367 | |
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368 | static struct coro * |
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369 | SvSTATE_ (pTHX_ SV *coro) |
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370 | { |
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371 | HV *stash; |
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372 | MAGIC *mg; |
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373 | |
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374 | if (SvROK (coro)) |
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375 | coro = SvRV (coro); |
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376 | |
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377 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
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378 | croak ("Coro::State object required"); |
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379 | |
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380 | stash = SvSTASH (coro); |
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381 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
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382 | { |
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383 | /* very slow, but rare, check */ |
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384 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
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385 | croak ("Coro::State object required"); |
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386 | } |
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387 | |
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388 | mg = CORO_MAGIC (coro); |
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389 | return (struct coro *)mg->mg_ptr; |
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390 | } |
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391 | |
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392 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
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393 | |
263 | /* the next two functions merely cache the padlists */ |
394 | /* the next two functions merely cache the padlists */ |
264 | static void |
395 | static void |
265 | get_padlist (CV *cv) |
396 | get_padlist (pTHX_ CV *cv) |
266 | { |
397 | { |
267 | MAGIC *mg = CORO_MAGIC (cv); |
398 | MAGIC *mg = CORO_MAGIC (cv); |
268 | AV *av; |
399 | AV *av; |
269 | |
400 | |
270 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
401 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
271 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
402 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
272 | else |
403 | else |
273 | { |
404 | { |
274 | #if PREFER_PERL_FUNCTIONS |
405 | #if CORO_PREFER_PERL_FUNCTIONS |
275 | /* this is probably cleaner, but also slower? */ |
406 | /* this is probably cleaner, but also slower? */ |
276 | CV *cp = Perl_cv_clone (cv); |
407 | CV *cp = Perl_cv_clone (cv); |
277 | CvPADLIST (cv) = CvPADLIST (cp); |
408 | CvPADLIST (cv) = CvPADLIST (cp); |
278 | CvPADLIST (cp) = 0; |
409 | CvPADLIST (cp) = 0; |
279 | SvREFCNT_dec (cp); |
410 | SvREFCNT_dec (cp); |
280 | #else |
411 | #else |
281 | CvPADLIST (cv) = coro_clone_padlist (cv); |
412 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
282 | #endif |
413 | #endif |
283 | } |
414 | } |
284 | } |
415 | } |
285 | |
416 | |
286 | static void |
417 | static void |
287 | put_padlist (CV *cv) |
418 | put_padlist (pTHX_ CV *cv) |
288 | { |
419 | { |
289 | MAGIC *mg = CORO_MAGIC (cv); |
420 | MAGIC *mg = CORO_MAGIC (cv); |
290 | AV *av; |
421 | AV *av; |
291 | |
422 | |
292 | if (!mg) |
423 | if (expect_false (!mg)) |
293 | { |
424 | { |
294 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
425 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
295 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
426 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
296 | mg->mg_virtual = &vtbl_coro; |
427 | mg->mg_virtual = &vtbl_coro; |
297 | mg->mg_obj = (SV *)newAV (); |
428 | mg->mg_obj = (SV *)newAV (); |
298 | } |
429 | } |
299 | |
430 | |
300 | av = (AV *)mg->mg_obj; |
431 | av = (AV *)mg->mg_obj; |
301 | |
432 | |
302 | if (AvFILLp (av) >= AvMAX (av)) |
433 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
303 | av_extend (av, AvMAX (av) + 1); |
434 | av_extend (av, AvMAX (av) + 1); |
304 | |
435 | |
305 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
436 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
306 | } |
437 | } |
307 | |
438 | |
308 | #define SB do { |
439 | /** load & save, init *******************************************************/ |
309 | #define SE } while (0) |
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310 | |
440 | |
311 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
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312 | |
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313 | static void |
441 | static void |
314 | load_perl (Coro__State c) |
442 | load_perl (pTHX_ Coro__State c) |
315 | { |
443 | { |
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444 | perl_slots *slot = c->slot; |
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445 | c->slot = 0; |
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446 | |
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447 | PL_mainstack = c->mainstack; |
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448 | |
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449 | GvSV (PL_defgv) = slot->defsv; |
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450 | GvAV (PL_defgv) = slot->defav; |
|
|
451 | GvSV (PL_errgv) = slot->errsv; |
|
|
452 | GvSV (irsgv) = slot->irsgv; |
|
|
453 | |
316 | #define VAR(name,type) PL_ ## name = c->name; |
454 | #define VAR(name,type) PL_ ## name = slot->name; |
317 | # include "state.h" |
455 | # include "state.h" |
318 | #undef VAR |
456 | #undef VAR |
319 | |
|
|
320 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
|
|
321 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
|
|
322 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
323 | if (c->irssv) |
|
|
324 | { |
|
|
325 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
326 | SvREFCNT_dec (c->irssv); |
|
|
327 | else |
|
|
328 | { |
|
|
329 | REPLACE_SV (PL_rs, c->irssv); |
|
|
330 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
331 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
332 | } |
|
|
333 | } |
|
|
334 | |
457 | |
335 | { |
458 | { |
336 | dSP; |
459 | dSP; |
|
|
460 | |
337 | CV *cv; |
461 | CV *cv; |
338 | |
462 | |
339 | /* now do the ugly restore mess */ |
463 | /* now do the ugly restore mess */ |
340 | while ((cv = (CV *)POPs)) |
464 | while (expect_true (cv = (CV *)POPs)) |
341 | { |
465 | { |
342 | put_padlist (cv); /* mark this padlist as available */ |
466 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
343 | CvDEPTH (cv) = PTR2IV (POPs); |
467 | CvDEPTH (cv) = PTR2IV (POPs); |
344 | CvPADLIST (cv) = (AV *)POPs; |
468 | CvPADLIST (cv) = (AV *)POPs; |
345 | } |
469 | } |
346 | |
470 | |
347 | PUTBACK; |
471 | PUTBACK; |
348 | } |
472 | } |
349 | } |
473 | } |
350 | |
474 | |
351 | static void |
475 | static void |
352 | save_perl (Coro__State c) |
476 | save_perl (pTHX_ Coro__State c) |
353 | { |
477 | { |
354 | { |
478 | { |
355 | dSP; |
479 | dSP; |
356 | I32 cxix = cxstack_ix; |
480 | I32 cxix = cxstack_ix; |
357 | PERL_CONTEXT *ccstk = cxstack; |
481 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
360 | /* |
484 | /* |
361 | * the worst thing you can imagine happens first - we have to save |
485 | * the worst thing you can imagine happens first - we have to save |
362 | * (and reinitialize) all cv's in the whole callchain :( |
486 | * (and reinitialize) all cv's in the whole callchain :( |
363 | */ |
487 | */ |
364 | |
488 | |
365 | EXTEND (SP, 3 + 1); |
|
|
366 | PUSHs (Nullsv); |
489 | XPUSHs (Nullsv); |
367 | /* this loop was inspired by pp_caller */ |
490 | /* this loop was inspired by pp_caller */ |
368 | for (;;) |
491 | for (;;) |
369 | { |
492 | { |
370 | while (cxix >= 0) |
493 | while (expect_true (cxix >= 0)) |
371 | { |
494 | { |
372 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
495 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
373 | |
496 | |
374 | if (CxTYPE (cx) == CXt_SUB) |
497 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
375 | { |
498 | { |
376 | CV *cv = cx->blk_sub.cv; |
499 | CV *cv = cx->blk_sub.cv; |
377 | |
500 | |
378 | if (CvDEPTH (cv)) |
501 | if (expect_true (CvDEPTH (cv))) |
379 | { |
502 | { |
380 | EXTEND (SP, 3); |
503 | EXTEND (SP, 3); |
381 | PUSHs ((SV *)CvPADLIST (cv)); |
504 | PUSHs ((SV *)CvPADLIST (cv)); |
382 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
505 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
383 | PUSHs ((SV *)cv); |
506 | PUSHs ((SV *)cv); |
384 | |
507 | |
385 | CvDEPTH (cv) = 0; |
508 | CvDEPTH (cv) = 0; |
386 | get_padlist (cv); |
509 | get_padlist (aTHX_ cv); |
387 | } |
510 | } |
388 | } |
511 | } |
389 | } |
512 | } |
390 | |
513 | |
391 | if (top_si->si_type == PERLSI_MAIN) |
514 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
392 | break; |
515 | break; |
393 | |
516 | |
394 | top_si = top_si->si_prev; |
517 | top_si = top_si->si_prev; |
395 | ccstk = top_si->si_cxstack; |
518 | ccstk = top_si->si_cxstack; |
396 | cxix = top_si->si_cxix; |
519 | cxix = top_si->si_cxix; |
397 | } |
520 | } |
398 | |
521 | |
399 | PUTBACK; |
522 | PUTBACK; |
400 | } |
523 | } |
401 | |
524 | |
402 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
525 | /* allocate some space on the context stack for our purposes */ |
403 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
526 | { |
404 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
527 | /* we manually unroll here, as usually 2 slots is enough */ |
405 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
528 | int i; |
|
|
529 | if (SLOT_COUNT >= 1) CXINC; |
|
|
530 | if (SLOT_COUNT >= 2) CXINC; |
|
|
531 | if (SLOT_COUNT >= 3) CXINC; |
|
|
532 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
533 | CXINC; |
406 | |
534 | |
|
|
535 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
536 | } |
|
|
537 | |
|
|
538 | c->mainstack = PL_mainstack; |
|
|
539 | |
|
|
540 | { |
|
|
541 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
542 | |
|
|
543 | slot->defav = GvAV (PL_defgv); |
|
|
544 | slot->defsv = DEFSV; |
|
|
545 | slot->errsv = ERRSV; |
|
|
546 | slot->irsgv = GvSV (irsgv); |
|
|
547 | |
407 | #define VAR(name,type)c->name = PL_ ## name; |
548 | #define VAR(name,type) slot->name = PL_ ## name; |
408 | # include "state.h" |
549 | # include "state.h" |
409 | #undef VAR |
550 | #undef VAR |
|
|
551 | } |
410 | } |
552 | } |
411 | |
553 | |
412 | /* |
554 | /* |
413 | * allocate various perl stacks. This is an exact copy |
555 | * allocate various perl stacks. This is an exact copy |
414 | * of perl.c:init_stacks, except that it uses less memory |
556 | * of perl.c:init_stacks, except that it uses less memory |
415 | * on the (sometimes correct) assumption that coroutines do |
557 | * on the (sometimes correct) assumption that coroutines do |
416 | * not usually need a lot of stackspace. |
558 | * not usually need a lot of stackspace. |
417 | */ |
559 | */ |
418 | #if PREFER_PERL_FUNCTIONS |
560 | #if CORO_PREFER_PERL_FUNCTIONS |
419 | # define coro_init_stacks init_stacks |
561 | # define coro_init_stacks init_stacks |
420 | #else |
562 | #else |
421 | static void |
563 | static void |
422 | coro_init_stacks () |
564 | coro_init_stacks (pTHX) |
423 | { |
565 | { |
424 | PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); |
566 | PL_curstackinfo = new_stackinfo(32, 8); |
425 | PL_curstackinfo->si_type = PERLSI_MAIN; |
567 | PL_curstackinfo->si_type = PERLSI_MAIN; |
426 | PL_curstack = PL_curstackinfo->si_stack; |
568 | PL_curstack = PL_curstackinfo->si_stack; |
427 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
569 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
428 | |
570 | |
429 | PL_stack_base = AvARRAY(PL_curstack); |
571 | PL_stack_base = AvARRAY(PL_curstack); |
430 | PL_stack_sp = PL_stack_base; |
572 | PL_stack_sp = PL_stack_base; |
431 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
573 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
432 | |
574 | |
433 | New(50,PL_tmps_stack,128,SV*); |
575 | New(50,PL_tmps_stack,32,SV*); |
434 | PL_tmps_floor = -1; |
576 | PL_tmps_floor = -1; |
435 | PL_tmps_ix = -1; |
577 | PL_tmps_ix = -1; |
436 | PL_tmps_max = 128; |
578 | PL_tmps_max = 32; |
437 | |
579 | |
438 | New(54,PL_markstack,32,I32); |
580 | New(54,PL_markstack,16,I32); |
439 | PL_markstack_ptr = PL_markstack; |
581 | PL_markstack_ptr = PL_markstack; |
440 | PL_markstack_max = PL_markstack + 32; |
582 | PL_markstack_max = PL_markstack + 16; |
441 | |
583 | |
442 | #ifdef SET_MARK_OFFSET |
584 | #ifdef SET_MARK_OFFSET |
443 | SET_MARK_OFFSET; |
585 | SET_MARK_OFFSET; |
444 | #endif |
586 | #endif |
445 | |
587 | |
446 | New(54,PL_scopestack,32,I32); |
588 | New(54,PL_scopestack,8,I32); |
447 | PL_scopestack_ix = 0; |
589 | PL_scopestack_ix = 0; |
448 | PL_scopestack_max = 32; |
590 | PL_scopestack_max = 8; |
449 | |
591 | |
450 | New(54,PL_savestack,64,ANY); |
592 | New(54,PL_savestack,24,ANY); |
451 | PL_savestack_ix = 0; |
593 | PL_savestack_ix = 0; |
452 | PL_savestack_max = 64; |
594 | PL_savestack_max = 24; |
453 | |
595 | |
454 | #if !PERL_VERSION_ATLEAST (5,9,0) |
596 | #if !PERL_VERSION_ATLEAST (5,9,0) |
455 | New(54,PL_retstack,16,OP*); |
597 | New(54,PL_retstack,4,OP*); |
456 | PL_retstack_ix = 0; |
598 | PL_retstack_ix = 0; |
457 | PL_retstack_max = 16; |
599 | PL_retstack_max = 4; |
458 | #endif |
600 | #endif |
459 | } |
601 | } |
460 | #endif |
602 | #endif |
461 | |
603 | |
462 | /* |
604 | /* |
463 | * destroy the stacks, the callchain etc... |
605 | * destroy the stacks, the callchain etc... |
464 | */ |
606 | */ |
465 | static void |
607 | static void |
466 | coro_destroy_stacks () |
608 | coro_destroy_stacks (pTHX) |
467 | { |
609 | { |
468 | if (!IN_DESTRUCT) |
|
|
469 | { |
|
|
470 | /* restore all saved variables and stuff */ |
|
|
471 | LEAVE_SCOPE (0); |
|
|
472 | assert (PL_tmps_floor == -1); |
|
|
473 | |
|
|
474 | /* free all temporaries */ |
|
|
475 | FREETMPS; |
|
|
476 | assert (PL_tmps_ix == -1); |
|
|
477 | |
|
|
478 | /* unwind all extra stacks */ |
|
|
479 | POPSTACK_TO (PL_mainstack); |
|
|
480 | |
|
|
481 | /* unwind main stack */ |
|
|
482 | dounwind (-1); |
|
|
483 | } |
|
|
484 | |
|
|
485 | while (PL_curstackinfo->si_next) |
610 | while (PL_curstackinfo->si_next) |
486 | PL_curstackinfo = PL_curstackinfo->si_next; |
611 | PL_curstackinfo = PL_curstackinfo->si_next; |
487 | |
612 | |
488 | while (PL_curstackinfo) |
613 | while (PL_curstackinfo) |
489 | { |
614 | { |
… | |
… | |
504 | #if !PERL_VERSION_ATLEAST (5,9,0) |
629 | #if !PERL_VERSION_ATLEAST (5,9,0) |
505 | Safefree (PL_retstack); |
630 | Safefree (PL_retstack); |
506 | #endif |
631 | #endif |
507 | } |
632 | } |
508 | |
633 | |
509 | static void |
634 | static size_t |
510 | setup_coro (struct coro *coro) |
635 | coro_rss (pTHX_ struct coro *coro) |
|
|
636 | { |
|
|
637 | size_t rss = sizeof (*coro); |
|
|
638 | |
|
|
639 | if (coro->mainstack) |
|
|
640 | { |
|
|
641 | perl_slots tmp_slot; |
|
|
642 | perl_slots *slot; |
|
|
643 | |
|
|
644 | if (coro->flags & CF_RUNNING) |
|
|
645 | { |
|
|
646 | slot = &tmp_slot; |
|
|
647 | |
|
|
648 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
649 | # include "state.h" |
|
|
650 | #undef VAR |
|
|
651 | } |
|
|
652 | else |
|
|
653 | slot = coro->slot; |
|
|
654 | |
|
|
655 | rss += sizeof (slot->curstackinfo); |
|
|
656 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
657 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
|
|
658 | rss += slot->tmps_max * sizeof (SV *); |
|
|
659 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
660 | rss += slot->scopestack_max * sizeof (I32); |
|
|
661 | rss += slot->savestack_max * sizeof (ANY); |
|
|
662 | |
|
|
663 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
664 | rss += slot->retstack_max * sizeof (OP *); |
|
|
665 | #endif |
|
|
666 | } |
|
|
667 | |
|
|
668 | return rss; |
|
|
669 | } |
|
|
670 | |
|
|
671 | /** coroutine stack handling ************************************************/ |
|
|
672 | |
|
|
673 | static void |
|
|
674 | coro_setup (pTHX_ struct coro *coro) |
511 | { |
675 | { |
512 | /* |
676 | /* |
513 | * emulate part of the perl startup here. |
677 | * emulate part of the perl startup here. |
514 | */ |
678 | */ |
515 | |
|
|
516 | coro_init_stacks (); |
679 | coro_init_stacks (aTHX); |
517 | |
680 | |
|
|
681 | PL_runops = RUNOPS_DEFAULT; |
518 | PL_curcop = &PL_compiling; |
682 | PL_curcop = &PL_compiling; |
519 | PL_in_eval = EVAL_NULL; |
683 | PL_in_eval = EVAL_NULL; |
|
|
684 | PL_comppad = 0; |
520 | PL_curpm = 0; |
685 | PL_curpm = 0; |
|
|
686 | PL_curpad = 0; |
521 | PL_localizing = 0; |
687 | PL_localizing = 0; |
522 | PL_dirty = 0; |
688 | PL_dirty = 0; |
523 | PL_restartop = 0; |
689 | PL_restartop = 0; |
|
|
690 | SvREFCNT_inc (PL_diehook ); hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
|
|
691 | SvREFCNT_inc (PL_warnhook); hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
|
|
692 | |
|
|
693 | GvSV (PL_defgv) = newSV (0); |
|
|
694 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
695 | GvSV (PL_errgv) = newSV (0); |
|
|
696 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
697 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
698 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
524 | |
699 | |
525 | { |
700 | { |
526 | dSP; |
701 | dSP; |
527 | LOGOP myop; |
702 | LOGOP myop; |
528 | |
703 | |
529 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
530 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
531 | |
|
|
532 | Zero (&myop, 1, LOGOP); |
704 | Zero (&myop, 1, LOGOP); |
533 | myop.op_next = Nullop; |
705 | myop.op_next = Nullop; |
534 | myop.op_flags = OPf_WANT_VOID; |
706 | myop.op_flags = OPf_WANT_VOID; |
535 | |
707 | |
536 | PUSHMARK (SP); |
708 | PUSHMARK (SP); |
537 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
709 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
538 | PUTBACK; |
710 | PUTBACK; |
539 | PL_op = (OP *)&myop; |
711 | PL_op = (OP *)&myop; |
540 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
712 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
541 | SPAGAIN; |
713 | SPAGAIN; |
542 | } |
714 | } |
543 | |
715 | |
544 | ENTER; /* necessary e.g. for dounwind */ |
716 | ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */ |
545 | } |
717 | } |
546 | |
718 | |
547 | static void |
719 | static void |
|
|
720 | coro_destroy (pTHX_ struct coro *coro) |
|
|
721 | { |
|
|
722 | if (!IN_DESTRUCT) |
|
|
723 | { |
|
|
724 | /* restore all saved variables and stuff */ |
|
|
725 | LEAVE_SCOPE (0); |
|
|
726 | assert (PL_tmps_floor == -1); |
|
|
727 | |
|
|
728 | /* free all temporaries */ |
|
|
729 | FREETMPS; |
|
|
730 | assert (PL_tmps_ix == -1); |
|
|
731 | |
|
|
732 | /* unwind all extra stacks */ |
|
|
733 | POPSTACK_TO (PL_mainstack); |
|
|
734 | |
|
|
735 | /* unwind main stack */ |
|
|
736 | dounwind (-1); |
|
|
737 | } |
|
|
738 | |
|
|
739 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
740 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
741 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
742 | SvREFCNT_dec (PL_defoutgv); |
|
|
743 | SvREFCNT_dec (PL_rs); |
|
|
744 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
745 | |
|
|
746 | SvREFCNT_dec (PL_diehook); |
|
|
747 | SvREFCNT_dec (PL_warnhook); |
|
|
748 | |
|
|
749 | SvREFCNT_dec (coro->saved_deffh); |
|
|
750 | SvREFCNT_dec (coro->throw); |
|
|
751 | |
|
|
752 | coro_destroy_stacks (aTHX); |
|
|
753 | } |
|
|
754 | |
|
|
755 | static void |
548 | free_coro_mortal () |
756 | free_coro_mortal (pTHX) |
549 | { |
757 | { |
550 | if (coro_mortal) |
758 | if (expect_true (coro_mortal)) |
551 | { |
759 | { |
552 | SvREFCNT_dec (coro_mortal); |
760 | SvREFCNT_dec (coro_mortal); |
553 | coro_mortal = 0; |
761 | coro_mortal = 0; |
554 | } |
762 | } |
555 | } |
763 | } |
556 | |
764 | |
|
|
765 | static int |
|
|
766 | runops_trace (pTHX) |
|
|
767 | { |
|
|
768 | COP *oldcop = 0; |
|
|
769 | int oldcxix = -2; |
|
|
770 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
771 | coro_cctx *cctx = coro->cctx; |
|
|
772 | |
|
|
773 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
774 | { |
|
|
775 | PERL_ASYNC_CHECK (); |
|
|
776 | |
|
|
777 | if (cctx->flags & CC_TRACE_ALL) |
|
|
778 | { |
|
|
779 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
780 | { |
|
|
781 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
782 | SV **bot, **top; |
|
|
783 | AV *av = newAV (); /* return values */ |
|
|
784 | SV **cb; |
|
|
785 | dSP; |
|
|
786 | |
|
|
787 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
788 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
789 | if (isGV (gv)) |
|
|
790 | gv_efullname3 (fullname, gv, 0); |
|
|
791 | |
|
|
792 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
793 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
794 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
795 | : bot; |
|
|
796 | |
|
|
797 | av_extend (av, top - bot); |
|
|
798 | while (bot < top) |
|
|
799 | av_push (av, SvREFCNT_inc (*bot++)); |
|
|
800 | |
|
|
801 | PL_runops = RUNOPS_DEFAULT; |
|
|
802 | ENTER; |
|
|
803 | SAVETMPS; |
|
|
804 | EXTEND (SP, 3); |
|
|
805 | PUSHMARK (SP); |
|
|
806 | PUSHs (&PL_sv_no); |
|
|
807 | PUSHs (fullname); |
|
|
808 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
809 | PUTBACK; |
|
|
810 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
|
|
811 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
812 | SPAGAIN; |
|
|
813 | FREETMPS; |
|
|
814 | LEAVE; |
|
|
815 | PL_runops = runops_trace; |
|
|
816 | } |
|
|
817 | |
|
|
818 | if (oldcop != PL_curcop) |
|
|
819 | { |
|
|
820 | oldcop = PL_curcop; |
|
|
821 | |
|
|
822 | if (PL_curcop != &PL_compiling) |
|
|
823 | { |
|
|
824 | SV **cb; |
|
|
825 | |
|
|
826 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
827 | { |
|
|
828 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
829 | |
|
|
830 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
831 | { |
|
|
832 | runops_proc_t old_runops = PL_runops; |
|
|
833 | dSP; |
|
|
834 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
835 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
836 | |
|
|
837 | if (isGV (gv)) |
|
|
838 | gv_efullname3 (fullname, gv, 0); |
|
|
839 | |
|
|
840 | PL_runops = RUNOPS_DEFAULT; |
|
|
841 | ENTER; |
|
|
842 | SAVETMPS; |
|
|
843 | EXTEND (SP, 3); |
|
|
844 | PUSHMARK (SP); |
|
|
845 | PUSHs (&PL_sv_yes); |
|
|
846 | PUSHs (fullname); |
|
|
847 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
848 | PUTBACK; |
|
|
849 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
|
|
850 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
851 | SPAGAIN; |
|
|
852 | FREETMPS; |
|
|
853 | LEAVE; |
|
|
854 | PL_runops = runops_trace; |
|
|
855 | } |
|
|
856 | |
|
|
857 | oldcxix = cxstack_ix; |
|
|
858 | } |
|
|
859 | |
|
|
860 | if (cctx->flags & CC_TRACE_LINE) |
|
|
861 | { |
|
|
862 | dSP; |
|
|
863 | |
|
|
864 | PL_runops = RUNOPS_DEFAULT; |
|
|
865 | ENTER; |
|
|
866 | SAVETMPS; |
|
|
867 | EXTEND (SP, 3); |
|
|
868 | PL_runops = RUNOPS_DEFAULT; |
|
|
869 | PUSHMARK (SP); |
|
|
870 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
871 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
872 | PUTBACK; |
|
|
873 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0); |
|
|
874 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
875 | SPAGAIN; |
|
|
876 | FREETMPS; |
|
|
877 | LEAVE; |
|
|
878 | PL_runops = runops_trace; |
|
|
879 | } |
|
|
880 | } |
|
|
881 | } |
|
|
882 | } |
|
|
883 | } |
|
|
884 | |
|
|
885 | TAINT_NOT; |
|
|
886 | return 0; |
|
|
887 | } |
|
|
888 | |
557 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
889 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
890 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
891 | /* during execution of a perl program */ |
558 | static void NOINLINE |
892 | static void NOINLINE |
559 | prepare_cctx (coro_cctx *cctx) |
893 | cctx_prepare (pTHX_ coro_cctx *cctx) |
560 | { |
894 | { |
561 | dSP; |
895 | dSP; |
562 | LOGOP myop; |
896 | LOGOP myop; |
|
|
897 | |
|
|
898 | PL_top_env = &PL_start_env; |
|
|
899 | |
|
|
900 | if (cctx->flags & CC_TRACE) |
|
|
901 | PL_runops = runops_trace; |
563 | |
902 | |
564 | Zero (&myop, 1, LOGOP); |
903 | Zero (&myop, 1, LOGOP); |
565 | myop.op_next = PL_op; |
904 | myop.op_next = PL_op; |
566 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
905 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
567 | |
906 | |
… | |
… | |
573 | PL_op = (OP *)&myop; |
912 | PL_op = (OP *)&myop; |
574 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
913 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
575 | SPAGAIN; |
914 | SPAGAIN; |
576 | } |
915 | } |
577 | |
916 | |
|
|
917 | /* |
|
|
918 | * this is a _very_ stripped down perl interpreter ;) |
|
|
919 | */ |
578 | static void |
920 | static void |
579 | coro_run (void *arg) |
921 | cctx_run (void *arg) |
580 | { |
922 | { |
|
|
923 | dTHX; |
|
|
924 | |
581 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
925 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
582 | UNLOCK; |
926 | UNLOCK; |
583 | |
927 | |
584 | /* |
928 | /* we now skip the entersub that lead to transfer() */ |
585 | * this is a _very_ stripped down perl interpreter ;) |
929 | PL_op = PL_op->op_next; |
586 | */ |
|
|
587 | PL_top_env = &PL_start_env; |
|
|
588 | |
930 | |
589 | /* inject call to cctx_init */ |
931 | /* inject a fake subroutine call to cctx_init */ |
590 | prepare_cctx ((coro_cctx *)arg); |
932 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
591 | |
933 | |
592 | /* somebody will hit me for both perl_run and PL_restartop */ |
934 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
593 | PL_restartop = PL_op; |
935 | PL_restartop = PL_op; |
594 | perl_run (PL_curinterp); |
936 | perl_run (PL_curinterp); |
595 | |
937 | |
596 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
938 | /* |
597 | abort (); |
939 | * If perl-run returns we assume exit() was being called or the coro |
|
|
940 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
941 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
942 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
943 | * coroutine as Coro has no such concept |
|
|
944 | */ |
|
|
945 | PL_top_env = main_top_env; |
|
|
946 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
598 | } |
947 | } |
599 | |
948 | |
600 | static coro_cctx * |
949 | static coro_cctx * |
601 | cctx_new () |
950 | cctx_new () |
602 | { |
951 | { |
603 | coro_cctx *cctx; |
952 | coro_cctx *cctx; |
|
|
953 | void *stack_start; |
|
|
954 | size_t stack_size; |
604 | |
955 | |
605 | ++cctx_count; |
956 | ++cctx_count; |
606 | |
957 | |
607 | Newz (0, cctx, 1, coro_cctx); |
958 | Newz (0, cctx, 1, coro_cctx); |
608 | |
959 | |
609 | #if HAVE_MMAP |
960 | #if HAVE_MMAP |
610 | |
|
|
611 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
961 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
612 | /* mmap supposedly does allocate-on-write for us */ |
962 | /* mmap supposedly does allocate-on-write for us */ |
613 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
963 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
614 | |
964 | |
615 | if (cctx->sptr == (void *)-1) |
965 | if (cctx->sptr != (void *)-1) |
616 | { |
|
|
617 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
618 | _exit (EXIT_FAILURE); |
|
|
619 | } |
966 | { |
620 | |
|
|
621 | # if STACKGUARD |
967 | # if CORO_STACKGUARD |
622 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
968 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
623 | # endif |
969 | # endif |
|
|
970 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
971 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
972 | cctx->flags |= CC_MAPPED; |
|
|
973 | } |
|
|
974 | else |
|
|
975 | #endif |
|
|
976 | { |
|
|
977 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
978 | New (0, cctx->sptr, coro_stacksize, long); |
624 | |
979 | |
625 | #else |
|
|
626 | |
|
|
627 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
|
|
628 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
629 | |
|
|
630 | if (!cctx->sptr) |
980 | if (!cctx->sptr) |
631 | { |
981 | { |
632 | perror ("FATAL: unable to malloc stack for coroutine"); |
982 | perror ("FATAL: unable to allocate stack for coroutine"); |
633 | _exit (EXIT_FAILURE); |
983 | _exit (EXIT_FAILURE); |
634 | } |
984 | } |
635 | |
985 | |
636 | #endif |
986 | stack_start = cctx->sptr; |
|
|
987 | stack_size = cctx->ssize; |
|
|
988 | } |
637 | |
989 | |
638 | #if USE_VALGRIND |
990 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
639 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
991 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
640 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
641 | cctx->ssize + (char *)cctx->sptr |
|
|
642 | ); |
|
|
643 | #endif |
|
|
644 | |
|
|
645 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
|
|
646 | |
992 | |
647 | return cctx; |
993 | return cctx; |
648 | } |
994 | } |
649 | |
995 | |
650 | static void |
996 | static void |
… | |
… | |
653 | if (!cctx) |
999 | if (!cctx) |
654 | return; |
1000 | return; |
655 | |
1001 | |
656 | --cctx_count; |
1002 | --cctx_count; |
657 | |
1003 | |
658 | #if USE_VALGRIND |
1004 | #if CORO_USE_VALGRIND |
659 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1005 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
660 | #endif |
1006 | #endif |
661 | |
1007 | |
662 | #if HAVE_MMAP |
1008 | #if HAVE_MMAP |
|
|
1009 | if (cctx->flags & CC_MAPPED) |
663 | munmap (cctx->sptr, cctx->ssize); |
1010 | munmap (cctx->sptr, cctx->ssize); |
664 | #else |
1011 | else |
|
|
1012 | #endif |
665 | Safefree (cctx->sptr); |
1013 | Safefree (cctx->sptr); |
666 | #endif |
|
|
667 | |
1014 | |
668 | Safefree (cctx); |
1015 | Safefree (cctx); |
669 | } |
1016 | } |
670 | |
1017 | |
|
|
1018 | /* wether this cctx should be destructed */ |
|
|
1019 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
|
|
1020 | |
671 | static coro_cctx * |
1021 | static coro_cctx * |
672 | cctx_get () |
1022 | cctx_get (pTHX) |
673 | { |
1023 | { |
674 | coro_cctx *cctx; |
1024 | while (expect_true (cctx_first)) |
675 | |
|
|
676 | if (cctx_first) |
|
|
677 | { |
1025 | { |
678 | cctx = cctx_first; |
1026 | coro_cctx *cctx = cctx_first; |
679 | cctx_first = cctx->next; |
1027 | cctx_first = cctx->next; |
680 | --cctx_idle; |
1028 | --cctx_idle; |
681 | } |
1029 | |
682 | else |
1030 | if (expect_true (!CCTX_EXPIRED (cctx))) |
683 | { |
1031 | return cctx; |
684 | cctx = cctx_new (); |
1032 | |
685 | PL_op = PL_op->op_next; |
1033 | cctx_destroy (cctx); |
686 | } |
1034 | } |
687 | |
1035 | |
688 | return cctx; |
1036 | return cctx_new (); |
689 | } |
1037 | } |
690 | |
1038 | |
691 | static void |
1039 | static void |
692 | cctx_put (coro_cctx *cctx) |
1040 | cctx_put (coro_cctx *cctx) |
693 | { |
1041 | { |
694 | /* free another cctx if overlimit */ |
1042 | /* free another cctx if overlimit */ |
695 | if (cctx_idle >= MAX_IDLE_CCTX) |
1043 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
696 | { |
1044 | { |
697 | coro_cctx *first = cctx_first; |
1045 | coro_cctx *first = cctx_first; |
698 | cctx_first = first->next; |
1046 | cctx_first = first->next; |
699 | --cctx_idle; |
1047 | --cctx_idle; |
700 | |
1048 | |
701 | assert (!first->inuse); |
|
|
702 | cctx_destroy (first); |
1049 | cctx_destroy (first); |
703 | } |
1050 | } |
704 | |
1051 | |
705 | ++cctx_idle; |
1052 | ++cctx_idle; |
706 | cctx->next = cctx_first; |
1053 | cctx->next = cctx_first; |
707 | cctx_first = cctx; |
1054 | cctx_first = cctx; |
708 | } |
1055 | } |
709 | |
1056 | |
710 | /* never call directly, always through the coro_state_transfer global variable */ |
1057 | /** coroutine switching *****************************************************/ |
|
|
1058 | |
|
|
1059 | static void |
|
|
1060 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1061 | { |
|
|
1062 | if (expect_true (prev != next)) |
|
|
1063 | { |
|
|
1064 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1065 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
1066 | |
|
|
1067 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1068 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1069 | |
|
|
1070 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1071 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
1072 | |
|
|
1073 | if ( |
|
|
1074 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
1075 | expect_false (PL_parser) |
|
|
1076 | #else |
|
|
1077 | expect_false (PL_lex_state != LEX_NOTPARSING) |
|
|
1078 | #endif |
|
|
1079 | ) |
|
|
1080 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
|
|
1081 | } |
|
|
1082 | } |
|
|
1083 | |
|
|
1084 | /* always use the TRANSFER macro */ |
711 | static void NOINLINE |
1085 | static void NOINLINE |
712 | transfer (struct coro *prev, struct coro *next) |
1086 | transfer (pTHX_ struct coro *prev, struct coro *next) |
713 | { |
1087 | { |
714 | dSTACKLEVEL; |
1088 | dSTACKLEVEL; |
715 | |
1089 | |
716 | /* sometimes transfer is only called to set idle_sp */ |
1090 | /* sometimes transfer is only called to set idle_sp */ |
717 | if (!next) |
1091 | if (expect_false (!next)) |
718 | { |
1092 | { |
719 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1093 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
720 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1094 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
721 | } |
1095 | } |
722 | else if (prev != next) |
1096 | else if (expect_true (prev != next)) |
723 | { |
1097 | { |
724 | coro_cctx *prev__cctx; |
1098 | coro_cctx *prev__cctx; |
725 | |
1099 | |
726 | if (prev->flags & CF_NEW) |
1100 | if (expect_false (prev->flags & CF_NEW)) |
727 | { |
1101 | { |
728 | /* create a new empty context */ |
1102 | /* create a new empty context */ |
729 | Newz (0, prev->cctx, 1, coro_cctx); |
1103 | Newz (0, prev->cctx, 1, coro_cctx); |
730 | prev->cctx->inuse = 1; |
|
|
731 | prev->flags &= ~CF_NEW; |
1104 | prev->flags &= ~CF_NEW; |
732 | prev->flags |= CF_RUNNING; |
1105 | prev->flags |= CF_RUNNING; |
733 | } |
1106 | } |
734 | |
1107 | |
735 | /*TODO: must not croak here */ |
|
|
736 | if (!prev->flags & CF_RUNNING) |
|
|
737 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
738 | |
|
|
739 | if (next->flags & CF_RUNNING) |
|
|
740 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
741 | |
|
|
742 | if (next->flags & CF_DESTROYED) |
|
|
743 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
744 | |
|
|
745 | prev->flags &= ~CF_RUNNING; |
1108 | prev->flags &= ~CF_RUNNING; |
746 | next->flags |= CF_RUNNING; |
1109 | next->flags |= CF_RUNNING; |
747 | |
1110 | |
748 | LOCK; |
1111 | LOCK; |
749 | |
1112 | |
750 | if (next->flags & CF_NEW) |
1113 | if (expect_false (next->flags & CF_NEW)) |
751 | { |
1114 | { |
752 | /* need to start coroutine */ |
1115 | /* need to start coroutine */ |
753 | next->flags &= ~CF_NEW; |
1116 | next->flags &= ~CF_NEW; |
754 | /* first get rid of the old state */ |
1117 | /* first get rid of the old state */ |
755 | save_perl (prev); |
1118 | save_perl (aTHX_ prev); |
756 | /* setup coroutine call */ |
1119 | /* setup coroutine call */ |
757 | setup_coro (next); |
1120 | coro_setup (aTHX_ next); |
758 | /* need a new stack */ |
|
|
759 | assert (!next->cctx); |
|
|
760 | } |
1121 | } |
761 | else |
1122 | else |
762 | { |
1123 | { |
763 | /* coroutine already started */ |
1124 | /* coroutine already started */ |
764 | save_perl (prev); |
1125 | save_perl (aTHX_ prev); |
765 | load_perl (next); |
1126 | load_perl (aTHX_ next); |
766 | } |
1127 | } |
767 | |
1128 | |
768 | prev__cctx = prev->cctx; |
1129 | prev__cctx = prev->cctx; |
769 | |
1130 | |
770 | /* possibly "free" the cctx */ |
1131 | /* possibly "free" the cctx */ |
771 | if (prev__cctx->idle_sp == STACKLEVEL) |
1132 | if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) |
772 | { |
1133 | { |
773 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1134 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
774 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1135 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
775 | |
1136 | |
776 | prev->cctx = 0; |
1137 | prev->cctx = 0; |
777 | |
1138 | |
|
|
1139 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1140 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1141 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1142 | if (!next->cctx) |
|
|
1143 | next->cctx = cctx_get (aTHX); |
|
|
1144 | |
778 | cctx_put (prev__cctx); |
1145 | cctx_put (prev__cctx); |
779 | prev__cctx->inuse = 0; |
|
|
780 | } |
1146 | } |
781 | |
1147 | |
|
|
1148 | ++next->usecount; |
|
|
1149 | |
782 | if (!next->cctx) |
1150 | if (expect_true (!next->cctx)) |
783 | { |
|
|
784 | next->cctx = cctx_get (); |
1151 | next->cctx = cctx_get (aTHX); |
785 | assert (!next->cctx->inuse); |
|
|
786 | next->cctx->inuse = 1; |
|
|
787 | } |
|
|
788 | |
1152 | |
789 | if (prev__cctx != next->cctx) |
1153 | if (expect_false (prev__cctx != next->cctx)) |
790 | { |
1154 | { |
791 | prev__cctx->top_env = PL_top_env; |
1155 | prev__cctx->top_env = PL_top_env; |
792 | PL_top_env = next->cctx->top_env; |
1156 | PL_top_env = next->cctx->top_env; |
793 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1157 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
794 | } |
1158 | } |
795 | |
1159 | |
796 | free_coro_mortal (); |
1160 | free_coro_mortal (aTHX); |
797 | UNLOCK; |
1161 | UNLOCK; |
|
|
1162 | |
|
|
1163 | if (expect_false (prev->throw || next->throw)) |
|
|
1164 | { |
|
|
1165 | struct coro *coro = SvSTATE (coro_current); |
|
|
1166 | |
|
|
1167 | if (coro->throw) |
|
|
1168 | { |
|
|
1169 | SV *exception = coro->throw; |
|
|
1170 | coro->throw = 0; |
|
|
1171 | sv_setsv (ERRSV, exception); |
|
|
1172 | croak (0); |
|
|
1173 | } |
|
|
1174 | } |
798 | } |
1175 | } |
799 | } |
1176 | } |
800 | |
1177 | |
801 | struct transfer_args |
1178 | struct transfer_args |
802 | { |
1179 | { |
803 | struct coro *prev, *next; |
1180 | struct coro *prev, *next; |
804 | }; |
1181 | }; |
805 | |
1182 | |
806 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next) |
1183 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
|
|
1184 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
|
|
1185 | |
|
|
1186 | /** high level stuff ********************************************************/ |
807 | |
1187 | |
808 | static int |
1188 | static int |
809 | coro_state_destroy (struct coro *coro) |
1189 | coro_state_destroy (pTHX_ struct coro *coro) |
810 | { |
1190 | { |
811 | if (coro->flags & CF_DESTROYED) |
1191 | if (coro->flags & CF_DESTROYED) |
812 | return 0; |
1192 | return 0; |
813 | |
1193 | |
814 | coro->flags |= CF_DESTROYED; |
1194 | coro->flags |= CF_DESTROYED; |
|
|
1195 | |
|
|
1196 | if (coro->flags & CF_READY) |
|
|
1197 | { |
|
|
1198 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1199 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1200 | LOCK; |
|
|
1201 | --coro_nready; |
|
|
1202 | UNLOCK; |
|
|
1203 | } |
|
|
1204 | else |
|
|
1205 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
815 | |
1206 | |
816 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1207 | if (coro->mainstack && coro->mainstack != main_mainstack) |
817 | { |
1208 | { |
818 | assert (!(coro->flags & CF_RUNNING)); |
|
|
819 | |
|
|
820 | struct coro temp; |
1209 | struct coro temp; |
821 | Zero (&temp, 1, struct coro); |
|
|
822 | temp.save = CORO_SAVE_ALL; |
|
|
823 | |
1210 | |
824 | if (coro->flags & CF_RUNNING) |
1211 | if (coro->flags & CF_RUNNING) |
825 | croak ("FATAL: tried to destroy currently running coroutine"); |
1212 | croak ("FATAL: tried to destroy currently running coroutine"); |
826 | |
1213 | |
827 | save_perl (&temp); |
1214 | save_perl (aTHX_ &temp); |
828 | load_perl (coro); |
1215 | load_perl (aTHX_ coro); |
829 | |
1216 | |
830 | coro_destroy_stacks (); |
1217 | coro_destroy (aTHX_ coro); |
831 | |
1218 | |
832 | load_perl (&temp); /* this will get rid of defsv etc.. */ |
1219 | load_perl (aTHX_ &temp); |
833 | |
1220 | |
834 | coro->mainstack = 0; |
1221 | coro->slot = 0; |
835 | } |
1222 | } |
836 | |
1223 | |
837 | cctx_destroy (coro->cctx); |
1224 | cctx_destroy (coro->cctx); |
838 | SvREFCNT_dec (coro->args); |
1225 | SvREFCNT_dec (coro->args); |
839 | |
1226 | |
|
|
1227 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1228 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1229 | if (coro == coro_first) coro_first = coro->next; |
|
|
1230 | |
840 | return 1; |
1231 | return 1; |
841 | } |
1232 | } |
842 | |
1233 | |
843 | static int |
1234 | static int |
844 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1235 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
845 | { |
1236 | { |
846 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1237 | struct coro *coro = (struct coro *)mg->mg_ptr; |
847 | mg->mg_ptr = 0; |
1238 | mg->mg_ptr = 0; |
848 | |
1239 | |
|
|
1240 | coro->hv = 0; |
|
|
1241 | |
849 | if (--coro->refcnt < 0) |
1242 | if (--coro->refcnt < 0) |
850 | { |
1243 | { |
851 | coro_state_destroy (coro); |
1244 | coro_state_destroy (aTHX_ coro); |
852 | Safefree (coro); |
1245 | Safefree (coro); |
853 | } |
1246 | } |
854 | |
1247 | |
855 | return 0; |
1248 | return 0; |
856 | } |
1249 | } |
… | |
… | |
874 | #else |
1267 | #else |
875 | # define MGf_DUP 0 |
1268 | # define MGf_DUP 0 |
876 | #endif |
1269 | #endif |
877 | }; |
1270 | }; |
878 | |
1271 | |
879 | static struct coro * |
|
|
880 | SvSTATE (SV *coro) |
|
|
881 | { |
|
|
882 | HV *stash; |
|
|
883 | MAGIC *mg; |
|
|
884 | |
|
|
885 | if (SvROK (coro)) |
|
|
886 | coro = SvRV (coro); |
|
|
887 | |
|
|
888 | stash = SvSTASH (coro); |
|
|
889 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
890 | { |
|
|
891 | /* very slow, but rare, check */ |
|
|
892 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
893 | croak ("Coro::State object required"); |
|
|
894 | } |
|
|
895 | |
|
|
896 | mg = SvMAGIC (coro); |
|
|
897 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
898 | return (struct coro *)mg->mg_ptr; |
|
|
899 | } |
|
|
900 | |
|
|
901 | static void |
1272 | static void |
902 | prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1273 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
903 | { |
1274 | { |
904 | ta->prev = SvSTATE (prev_sv); |
1275 | ta->prev = SvSTATE (prev_sv); |
905 | ta->next = SvSTATE (next_sv); |
1276 | ta->next = SvSTATE (next_sv); |
|
|
1277 | TRANSFER_CHECK (*ta); |
906 | } |
1278 | } |
907 | |
1279 | |
908 | static void |
1280 | static void |
909 | api_transfer (SV *prev_sv, SV *next_sv) |
1281 | api_transfer (SV *prev_sv, SV *next_sv) |
910 | { |
1282 | { |
|
|
1283 | dTHX; |
911 | struct transfer_args ta; |
1284 | struct transfer_args ta; |
912 | |
1285 | |
913 | prepare_transfer (&ta, prev_sv, next_sv); |
1286 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
914 | TRANSFER (ta); |
1287 | TRANSFER (ta); |
915 | } |
1288 | } |
916 | |
1289 | |
917 | static int |
|
|
918 | api_save (SV *coro_sv, int new_save) |
|
|
919 | { |
|
|
920 | struct coro *coro = SvSTATE (coro_sv); |
|
|
921 | int old_save = coro->save; |
|
|
922 | |
|
|
923 | if (new_save >= 0) |
|
|
924 | coro->save = new_save; |
|
|
925 | |
|
|
926 | return old_save; |
|
|
927 | } |
|
|
928 | |
|
|
929 | /** Coro ********************************************************************/ |
1290 | /** Coro ********************************************************************/ |
930 | |
1291 | |
931 | #define PRIO_MAX 3 |
|
|
932 | #define PRIO_HIGH 1 |
|
|
933 | #define PRIO_NORMAL 0 |
|
|
934 | #define PRIO_LOW -1 |
|
|
935 | #define PRIO_IDLE -3 |
|
|
936 | #define PRIO_MIN -4 |
|
|
937 | |
|
|
938 | /* for Coro.pm */ |
|
|
939 | static SV *coro_current; |
|
|
940 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
941 | static int coro_nready; |
|
|
942 | |
|
|
943 | static void |
1292 | static void |
944 | coro_enq (SV *coro_sv) |
1293 | coro_enq (pTHX_ SV *coro_sv) |
945 | { |
1294 | { |
946 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1295 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
947 | coro_nready++; |
|
|
948 | } |
1296 | } |
949 | |
1297 | |
950 | static SV * |
1298 | static SV * |
951 | coro_deq (int min_prio) |
1299 | coro_deq (pTHX_ int min_prio) |
952 | { |
1300 | { |
953 | int prio = PRIO_MAX - PRIO_MIN; |
1301 | int prio = PRIO_MAX - PRIO_MIN; |
954 | |
1302 | |
955 | min_prio -= PRIO_MIN; |
1303 | min_prio -= PRIO_MIN; |
956 | if (min_prio < 0) |
1304 | if (min_prio < 0) |
957 | min_prio = 0; |
1305 | min_prio = 0; |
958 | |
1306 | |
959 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1307 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
960 | if (AvFILLp (coro_ready [prio]) >= 0) |
1308 | if (AvFILLp (coro_ready [prio]) >= 0) |
961 | { |
|
|
962 | coro_nready--; |
|
|
963 | return av_shift (coro_ready [prio]); |
1309 | return av_shift (coro_ready [prio]); |
964 | } |
|
|
965 | |
1310 | |
966 | return 0; |
1311 | return 0; |
967 | } |
1312 | } |
968 | |
1313 | |
969 | static int |
1314 | static int |
970 | api_ready (SV *coro_sv) |
1315 | api_ready (SV *coro_sv) |
971 | { |
1316 | { |
|
|
1317 | dTHX; |
972 | struct coro *coro; |
1318 | struct coro *coro; |
973 | |
1319 | |
974 | if (SvROK (coro_sv)) |
1320 | if (SvROK (coro_sv)) |
975 | coro_sv = SvRV (coro_sv); |
1321 | coro_sv = SvRV (coro_sv); |
976 | |
1322 | |
… | |
… | |
980 | return 0; |
1326 | return 0; |
981 | |
1327 | |
982 | coro->flags |= CF_READY; |
1328 | coro->flags |= CF_READY; |
983 | |
1329 | |
984 | LOCK; |
1330 | LOCK; |
985 | coro_enq (SvREFCNT_inc (coro_sv)); |
1331 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1332 | ++coro_nready; |
986 | UNLOCK; |
1333 | UNLOCK; |
987 | |
1334 | |
988 | return 1; |
1335 | return 1; |
989 | } |
1336 | } |
990 | |
1337 | |
991 | static int |
1338 | static int |
992 | api_is_ready (SV *coro_sv) |
1339 | api_is_ready (SV *coro_sv) |
993 | { |
1340 | { |
|
|
1341 | dTHX; |
994 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1342 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
995 | } |
1343 | } |
996 | |
1344 | |
997 | static void |
1345 | static void |
998 | prepare_schedule (struct transfer_args *ta) |
1346 | prepare_schedule (pTHX_ struct transfer_args *ta) |
999 | { |
1347 | { |
1000 | SV *prev_sv, *next_sv; |
1348 | SV *prev_sv, *next_sv; |
1001 | |
1349 | |
1002 | for (;;) |
1350 | for (;;) |
1003 | { |
1351 | { |
1004 | LOCK; |
1352 | LOCK; |
1005 | next_sv = coro_deq (PRIO_MIN); |
1353 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
1006 | UNLOCK; |
|
|
1007 | |
1354 | |
1008 | /* nothing to schedule: call the idle handler */ |
1355 | /* nothing to schedule: call the idle handler */ |
1009 | if (!next_sv) |
1356 | if (expect_false (!next_sv)) |
1010 | { |
1357 | { |
1011 | dSP; |
1358 | dSP; |
|
|
1359 | UNLOCK; |
1012 | |
1360 | |
1013 | ENTER; |
1361 | ENTER; |
1014 | SAVETMPS; |
1362 | SAVETMPS; |
1015 | |
1363 | |
1016 | PUSHMARK (SP); |
1364 | PUSHMARK (SP); |
… | |
… | |
1023 | } |
1371 | } |
1024 | |
1372 | |
1025 | ta->next = SvSTATE (next_sv); |
1373 | ta->next = SvSTATE (next_sv); |
1026 | |
1374 | |
1027 | /* cannot transfer to destroyed coros, skip and look for next */ |
1375 | /* cannot transfer to destroyed coros, skip and look for next */ |
1028 | if (ta->next->flags & CF_DESTROYED) |
1376 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1029 | { |
1377 | { |
|
|
1378 | UNLOCK; |
1030 | SvREFCNT_dec (next_sv); |
1379 | SvREFCNT_dec (next_sv); |
|
|
1380 | /* coro_nready is already taken care of by destroy */ |
1031 | continue; |
1381 | continue; |
1032 | } |
1382 | } |
1033 | |
1383 | |
|
|
1384 | --coro_nready; |
|
|
1385 | UNLOCK; |
1034 | break; |
1386 | break; |
1035 | } |
1387 | } |
1036 | |
1388 | |
1037 | /* free this only after the transfer */ |
1389 | /* free this only after the transfer */ |
1038 | prev_sv = SvRV (coro_current); |
1390 | prev_sv = SvRV (coro_current); |
1039 | SvRV_set (coro_current, next_sv); |
|
|
1040 | ta->prev = SvSTATE (prev_sv); |
1391 | ta->prev = SvSTATE (prev_sv); |
1041 | |
1392 | TRANSFER_CHECK (*ta); |
1042 | assert (ta->next->flags & CF_READY); |
1393 | assert (ta->next->flags & CF_READY); |
1043 | ta->next->flags &= ~CF_READY; |
1394 | ta->next->flags &= ~CF_READY; |
|
|
1395 | SvRV_set (coro_current, next_sv); |
1044 | |
1396 | |
1045 | LOCK; |
1397 | LOCK; |
1046 | free_coro_mortal (); |
1398 | free_coro_mortal (aTHX); |
1047 | coro_mortal = prev_sv; |
1399 | coro_mortal = prev_sv; |
1048 | UNLOCK; |
1400 | UNLOCK; |
1049 | } |
1401 | } |
1050 | |
1402 | |
1051 | static void |
1403 | static void |
1052 | prepare_cede (struct transfer_args *ta) |
1404 | prepare_cede (pTHX_ struct transfer_args *ta) |
1053 | { |
1405 | { |
1054 | api_ready (coro_current); |
1406 | api_ready (coro_current); |
1055 | prepare_schedule (ta); |
1407 | prepare_schedule (aTHX_ ta); |
1056 | } |
1408 | } |
1057 | |
1409 | |
1058 | static int |
1410 | static int |
1059 | prepare_cede_notself (struct transfer_args *ta) |
1411 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1060 | { |
1412 | { |
1061 | if (coro_nready) |
1413 | if (coro_nready) |
1062 | { |
1414 | { |
1063 | SV *prev = SvRV (coro_current); |
1415 | SV *prev = SvRV (coro_current); |
1064 | prepare_schedule (ta); |
1416 | prepare_schedule (aTHX_ ta); |
1065 | api_ready (prev); |
1417 | api_ready (prev); |
1066 | return 1; |
1418 | return 1; |
1067 | } |
1419 | } |
1068 | else |
1420 | else |
1069 | return 0; |
1421 | return 0; |
1070 | } |
1422 | } |
1071 | |
1423 | |
1072 | static void |
1424 | static void |
1073 | api_schedule (void) |
1425 | api_schedule (void) |
1074 | { |
1426 | { |
|
|
1427 | dTHX; |
1075 | struct transfer_args ta; |
1428 | struct transfer_args ta; |
1076 | |
1429 | |
1077 | prepare_schedule (&ta); |
1430 | prepare_schedule (aTHX_ &ta); |
1078 | TRANSFER (ta); |
1431 | TRANSFER (ta); |
1079 | } |
1432 | } |
1080 | |
1433 | |
1081 | static int |
1434 | static int |
1082 | api_cede (void) |
1435 | api_cede (void) |
1083 | { |
1436 | { |
|
|
1437 | dTHX; |
1084 | struct transfer_args ta; |
1438 | struct transfer_args ta; |
1085 | |
1439 | |
1086 | prepare_cede (&ta); |
1440 | prepare_cede (aTHX_ &ta); |
1087 | |
1441 | |
1088 | if (ta.prev != ta.next) |
1442 | if (expect_true (ta.prev != ta.next)) |
1089 | { |
1443 | { |
1090 | TRANSFER (ta); |
1444 | TRANSFER (ta); |
1091 | return 1; |
1445 | return 1; |
1092 | } |
1446 | } |
1093 | else |
1447 | else |
… | |
… | |
1095 | } |
1449 | } |
1096 | |
1450 | |
1097 | static int |
1451 | static int |
1098 | api_cede_notself (void) |
1452 | api_cede_notself (void) |
1099 | { |
1453 | { |
|
|
1454 | dTHX; |
1100 | struct transfer_args ta; |
1455 | struct transfer_args ta; |
1101 | |
1456 | |
1102 | if (prepare_cede_notself (&ta)) |
1457 | if (prepare_cede_notself (aTHX_ &ta)) |
1103 | { |
1458 | { |
1104 | TRANSFER (ta); |
1459 | TRANSFER (ta); |
1105 | return 1; |
1460 | return 1; |
1106 | } |
1461 | } |
1107 | else |
1462 | else |
1108 | return 0; |
1463 | return 0; |
1109 | } |
1464 | } |
1110 | |
1465 | |
|
|
1466 | static void |
|
|
1467 | api_trace (SV *coro_sv, int flags) |
|
|
1468 | { |
|
|
1469 | dTHX; |
|
|
1470 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1471 | |
|
|
1472 | if (flags & CC_TRACE) |
|
|
1473 | { |
|
|
1474 | if (!coro->cctx) |
|
|
1475 | coro->cctx = cctx_new (); |
|
|
1476 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1477 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1478 | |
|
|
1479 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1480 | } |
|
|
1481 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1482 | { |
|
|
1483 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1484 | |
|
|
1485 | if (coro->flags & CF_RUNNING) |
|
|
1486 | PL_runops = RUNOPS_DEFAULT; |
|
|
1487 | else |
|
|
1488 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1489 | } |
|
|
1490 | } |
|
|
1491 | |
1111 | MODULE = Coro::State PACKAGE = Coro::State |
1492 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1112 | |
1493 | |
1113 | PROTOTYPES: DISABLE |
1494 | PROTOTYPES: DISABLE |
1114 | |
1495 | |
1115 | BOOT: |
1496 | BOOT: |
1116 | { |
1497 | { |
1117 | #ifdef USE_ITHREADS |
1498 | #ifdef USE_ITHREADS |
1118 | MUTEX_INIT (&coro_mutex); |
1499 | MUTEX_INIT (&coro_mutex); |
1119 | #endif |
1500 | #endif |
1120 | BOOT_PAGESIZE; |
1501 | BOOT_PAGESIZE; |
1121 | |
1502 | |
|
|
1503 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1504 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1505 | |
|
|
1506 | hv_sig = coro_get_hv ("SIG", TRUE); |
|
|
1507 | sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE); |
|
|
1508 | sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE); |
|
|
1509 | |
|
|
1510 | if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
|
|
1511 | if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
|
|
1512 | |
1122 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1513 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1123 | |
1514 | |
|
|
1515 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
|
|
1516 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1124 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1517 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1125 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
|
|
1126 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1127 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1128 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1518 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1129 | |
1519 | |
1130 | main_mainstack = PL_mainstack; |
1520 | main_mainstack = PL_mainstack; |
|
|
1521 | main_top_env = PL_top_env; |
|
|
1522 | |
|
|
1523 | while (main_top_env->je_prev) |
|
|
1524 | main_top_env = main_top_env->je_prev; |
1131 | |
1525 | |
1132 | coroapi.ver = CORO_API_VERSION; |
1526 | coroapi.ver = CORO_API_VERSION; |
1133 | coroapi.transfer = api_transfer; |
1527 | coroapi.transfer = api_transfer; |
1134 | |
1528 | |
1135 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1529 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
… | |
… | |
1142 | struct coro *coro; |
1536 | struct coro *coro; |
1143 | HV *hv; |
1537 | HV *hv; |
1144 | int i; |
1538 | int i; |
1145 | |
1539 | |
1146 | Newz (0, coro, 1, struct coro); |
1540 | Newz (0, coro, 1, struct coro); |
1147 | coro->args = newAV (); |
1541 | coro->args = newAV (); |
1148 | coro->save = CORO_SAVE_ALL; |
|
|
1149 | coro->flags = CF_NEW; |
1542 | coro->flags = CF_NEW; |
1150 | |
1543 | |
|
|
1544 | if (coro_first) coro_first->prev = coro; |
|
|
1545 | coro->next = coro_first; |
|
|
1546 | coro_first = coro; |
|
|
1547 | |
1151 | hv = newHV (); |
1548 | coro->hv = hv = newHV (); |
1152 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1549 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1153 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1550 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1154 | |
1551 | |
|
|
1552 | av_extend (coro->args, items - 1); |
1155 | for (i = 1; i < items; i++) |
1553 | for (i = 1; i < items; i++) |
1156 | av_push (coro->args, newSVsv (ST (i))); |
1554 | av_push (coro->args, newSVsv (ST (i))); |
1157 | } |
1555 | } |
1158 | OUTPUT: |
1556 | OUTPUT: |
1159 | RETVAL |
1557 | RETVAL |
1160 | |
1558 | |
1161 | int |
1559 | # these not obviously related functions are all rolled into the same xs |
1162 | save (SV *coro, int new_save = -1) |
1560 | # function to increase chances that they all will call transfer with the same |
1163 | CODE: |
1561 | # stack offset |
1164 | RETVAL = api_save (coro, new_save); |
|
|
1165 | OUTPUT: |
|
|
1166 | RETVAL |
|
|
1167 | |
|
|
1168 | void |
1562 | void |
1169 | _set_stacklevel (...) |
1563 | _set_stacklevel (...) |
1170 | ALIAS: |
1564 | ALIAS: |
1171 | Coro::State::transfer = 1 |
1565 | Coro::State::transfer = 1 |
1172 | Coro::schedule = 2 |
1566 | Coro::schedule = 2 |
… | |
… | |
1185 | |
1579 | |
1186 | case 1: |
1580 | case 1: |
1187 | if (items != 2) |
1581 | if (items != 2) |
1188 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1582 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1189 | |
1583 | |
1190 | prepare_transfer (&ta, ST (0), ST (1)); |
1584 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1191 | break; |
1585 | break; |
1192 | |
1586 | |
1193 | case 2: |
1587 | case 2: |
1194 | prepare_schedule (&ta); |
1588 | prepare_schedule (aTHX_ &ta); |
1195 | break; |
1589 | break; |
1196 | |
1590 | |
1197 | case 3: |
1591 | case 3: |
1198 | prepare_cede (&ta); |
1592 | prepare_cede (aTHX_ &ta); |
1199 | break; |
1593 | break; |
1200 | |
1594 | |
1201 | case 4: |
1595 | case 4: |
1202 | if (!prepare_cede_notself (&ta)) |
1596 | if (!prepare_cede_notself (aTHX_ &ta)) |
1203 | XSRETURN_EMPTY; |
1597 | XSRETURN_EMPTY; |
1204 | |
1598 | |
1205 | break; |
1599 | break; |
1206 | } |
1600 | } |
1207 | |
1601 | |
1208 | BARRIER; |
1602 | BARRIER; |
1209 | TRANSFER (ta); |
1603 | TRANSFER (ta); |
1210 | |
1604 | |
1211 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
1605 | if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev)) |
1212 | XSRETURN_YES; |
1606 | XSRETURN_YES; |
1213 | } |
1607 | } |
1214 | |
1608 | |
1215 | bool |
1609 | bool |
1216 | _destroy (SV *coro_sv) |
1610 | _destroy (SV *coro_sv) |
1217 | CODE: |
1611 | CODE: |
1218 | RETVAL = coro_state_destroy (SvSTATE (coro_sv)); |
1612 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1219 | OUTPUT: |
1613 | OUTPUT: |
1220 | RETVAL |
1614 | RETVAL |
1221 | |
1615 | |
1222 | void |
1616 | void |
1223 | _exit (code) |
1617 | _exit (code) |
… | |
… | |
1225 | PROTOTYPE: $ |
1619 | PROTOTYPE: $ |
1226 | CODE: |
1620 | CODE: |
1227 | _exit (code); |
1621 | _exit (code); |
1228 | |
1622 | |
1229 | int |
1623 | int |
|
|
1624 | cctx_stacksize (int new_stacksize = 0) |
|
|
1625 | CODE: |
|
|
1626 | RETVAL = coro_stacksize; |
|
|
1627 | if (new_stacksize) |
|
|
1628 | coro_stacksize = new_stacksize; |
|
|
1629 | OUTPUT: |
|
|
1630 | RETVAL |
|
|
1631 | |
|
|
1632 | int |
1230 | cctx_count () |
1633 | cctx_count () |
1231 | CODE: |
1634 | CODE: |
1232 | RETVAL = cctx_count; |
1635 | RETVAL = cctx_count; |
1233 | OUTPUT: |
1636 | OUTPUT: |
1234 | RETVAL |
1637 | RETVAL |
… | |
… | |
1238 | CODE: |
1641 | CODE: |
1239 | RETVAL = cctx_idle; |
1642 | RETVAL = cctx_idle; |
1240 | OUTPUT: |
1643 | OUTPUT: |
1241 | RETVAL |
1644 | RETVAL |
1242 | |
1645 | |
|
|
1646 | void |
|
|
1647 | list () |
|
|
1648 | PPCODE: |
|
|
1649 | { |
|
|
1650 | struct coro *coro; |
|
|
1651 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1652 | if (coro->hv) |
|
|
1653 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1654 | } |
|
|
1655 | |
|
|
1656 | void |
|
|
1657 | call (Coro::State coro, SV *coderef) |
|
|
1658 | ALIAS: |
|
|
1659 | eval = 1 |
|
|
1660 | CODE: |
|
|
1661 | { |
|
|
1662 | if (coro->mainstack) |
|
|
1663 | { |
|
|
1664 | struct coro temp; |
|
|
1665 | |
|
|
1666 | if (!(coro->flags & CF_RUNNING)) |
|
|
1667 | { |
|
|
1668 | save_perl (aTHX_ &temp); |
|
|
1669 | load_perl (aTHX_ coro); |
|
|
1670 | } |
|
|
1671 | |
|
|
1672 | { |
|
|
1673 | dSP; |
|
|
1674 | ENTER; |
|
|
1675 | SAVETMPS; |
|
|
1676 | PUSHMARK (SP); |
|
|
1677 | PUTBACK; |
|
|
1678 | |
|
|
1679 | if (ix) |
|
|
1680 | eval_sv (coderef, 0); |
|
|
1681 | else |
|
|
1682 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1683 | |
|
|
1684 | SPAGAIN; |
|
|
1685 | FREETMPS; |
|
|
1686 | LEAVE; |
|
|
1687 | PUTBACK; |
|
|
1688 | } |
|
|
1689 | |
|
|
1690 | if (!(coro->flags & CF_RUNNING)) |
|
|
1691 | { |
|
|
1692 | save_perl (aTHX_ coro); |
|
|
1693 | load_perl (aTHX_ &temp); |
|
|
1694 | } |
|
|
1695 | } |
|
|
1696 | } |
|
|
1697 | |
|
|
1698 | SV * |
|
|
1699 | is_ready (Coro::State coro) |
|
|
1700 | PROTOTYPE: $ |
|
|
1701 | ALIAS: |
|
|
1702 | is_ready = CF_READY |
|
|
1703 | is_running = CF_RUNNING |
|
|
1704 | is_new = CF_NEW |
|
|
1705 | is_destroyed = CF_DESTROYED |
|
|
1706 | CODE: |
|
|
1707 | RETVAL = boolSV (coro->flags & ix); |
|
|
1708 | OUTPUT: |
|
|
1709 | RETVAL |
|
|
1710 | |
|
|
1711 | void |
|
|
1712 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1713 | |
|
|
1714 | SV * |
|
|
1715 | has_stack (Coro::State coro) |
|
|
1716 | PROTOTYPE: $ |
|
|
1717 | CODE: |
|
|
1718 | RETVAL = boolSV (!!coro->cctx); |
|
|
1719 | OUTPUT: |
|
|
1720 | RETVAL |
|
|
1721 | |
|
|
1722 | int |
|
|
1723 | is_traced (Coro::State coro) |
|
|
1724 | PROTOTYPE: $ |
|
|
1725 | CODE: |
|
|
1726 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1727 | OUTPUT: |
|
|
1728 | RETVAL |
|
|
1729 | |
|
|
1730 | IV |
|
|
1731 | rss (Coro::State coro) |
|
|
1732 | PROTOTYPE: $ |
|
|
1733 | ALIAS: |
|
|
1734 | usecount = 1 |
|
|
1735 | CODE: |
|
|
1736 | switch (ix) |
|
|
1737 | { |
|
|
1738 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
1739 | case 1: RETVAL = coro->usecount; break; |
|
|
1740 | } |
|
|
1741 | OUTPUT: |
|
|
1742 | RETVAL |
|
|
1743 | |
|
|
1744 | |
1243 | MODULE = Coro::State PACKAGE = Coro |
1745 | MODULE = Coro::State PACKAGE = Coro |
1244 | |
1746 | |
1245 | BOOT: |
1747 | BOOT: |
1246 | { |
1748 | { |
1247 | int i; |
1749 | int i; |
1248 | |
1750 | |
|
|
1751 | sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1752 | sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1753 | av_async_pool = coro_get_av ("Coro::async_pool", TRUE); |
|
|
1754 | |
|
|
1755 | coro_current = coro_get_sv ("Coro::current", FALSE); |
|
|
1756 | SvREADONLY_on (coro_current); |
|
|
1757 | |
1249 | coro_stash = gv_stashpv ("Coro", TRUE); |
1758 | coro_stash = gv_stashpv ("Coro", TRUE); |
1250 | |
1759 | |
1251 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1760 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1252 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1761 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1253 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1762 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1254 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1763 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1255 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1764 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1256 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1765 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1257 | |
1766 | |
1258 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1259 | SvREADONLY_on (coro_current); |
|
|
1260 | |
|
|
1261 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1767 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1262 | coro_ready[i] = newAV (); |
1768 | coro_ready[i] = newAV (); |
1263 | |
1769 | |
1264 | { |
1770 | { |
1265 | SV *sv = perl_get_sv("Coro::API", 1); |
1771 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
|
|
1772 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
1266 | |
1773 | |
1267 | coroapi.schedule = api_schedule; |
1774 | coroapi.schedule = api_schedule; |
1268 | coroapi.save = api_save; |
|
|
1269 | coroapi.cede = api_cede; |
1775 | coroapi.cede = api_cede; |
1270 | coroapi.cede_notself = api_cede_notself; |
1776 | coroapi.cede_notself = api_cede_notself; |
1271 | coroapi.ready = api_ready; |
1777 | coroapi.ready = api_ready; |
1272 | coroapi.is_ready = api_is_ready; |
1778 | coroapi.is_ready = api_is_ready; |
1273 | coroapi.nready = &coro_nready; |
1779 | coroapi.nready = &coro_nready; |
… | |
… | |
1314 | CODE: |
1820 | CODE: |
1315 | RETVAL = boolSV (api_ready (self)); |
1821 | RETVAL = boolSV (api_ready (self)); |
1316 | OUTPUT: |
1822 | OUTPUT: |
1317 | RETVAL |
1823 | RETVAL |
1318 | |
1824 | |
1319 | SV * |
|
|
1320 | is_ready (SV *self) |
|
|
1321 | PROTOTYPE: $ |
|
|
1322 | CODE: |
|
|
1323 | RETVAL = boolSV (api_is_ready (self)); |
|
|
1324 | OUTPUT: |
|
|
1325 | RETVAL |
|
|
1326 | |
|
|
1327 | int |
1825 | int |
1328 | nready (...) |
1826 | nready (...) |
1329 | PROTOTYPE: |
1827 | PROTOTYPE: |
1330 | CODE: |
1828 | CODE: |
1331 | RETVAL = coro_nready; |
1829 | RETVAL = coro_nready; |
1332 | OUTPUT: |
1830 | OUTPUT: |
1333 | RETVAL |
1831 | RETVAL |
1334 | |
1832 | |
|
|
1833 | void |
|
|
1834 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
1835 | PROTOTYPE: $;$ |
|
|
1836 | CODE: |
|
|
1837 | SvREFCNT_dec (self->throw); |
|
|
1838 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1839 | |
|
|
1840 | # for async_pool speedup |
|
|
1841 | void |
|
|
1842 | _pool_1 (SV *cb) |
|
|
1843 | CODE: |
|
|
1844 | { |
|
|
1845 | struct coro *coro = SvSTATE (coro_current); |
|
|
1846 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1847 | AV *defav = GvAV (PL_defgv); |
|
|
1848 | SV *invoke = hv_delete (hv, strpair ("_invoke"), 0); |
|
|
1849 | AV *invoke_av; |
|
|
1850 | int i, len; |
|
|
1851 | |
|
|
1852 | if (!invoke) |
|
|
1853 | croak ("\3async_pool terminate\2\n"); |
|
|
1854 | |
|
|
1855 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1856 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
|
|
1857 | |
|
|
1858 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1859 | newSVpvn (strpair ("[async_pool]")), 0); |
|
|
1860 | |
|
|
1861 | invoke_av = (AV *)SvRV (invoke); |
|
|
1862 | len = av_len (invoke_av); |
|
|
1863 | |
|
|
1864 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1865 | |
|
|
1866 | if (len > 0) |
|
|
1867 | { |
|
|
1868 | av_fill (defav, len - 1); |
|
|
1869 | for (i = 0; i < len; ++i) |
|
|
1870 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1871 | } |
|
|
1872 | |
|
|
1873 | SvREFCNT_dec (invoke); |
|
|
1874 | } |
|
|
1875 | |
|
|
1876 | void |
|
|
1877 | _pool_2 (SV *cb) |
|
|
1878 | CODE: |
|
|
1879 | { |
|
|
1880 | struct coro *coro = SvSTATE (coro_current); |
|
|
1881 | |
|
|
1882 | sv_setsv (cb, &PL_sv_undef); |
|
|
1883 | |
|
|
1884 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1885 | coro->saved_deffh = 0; |
|
|
1886 | |
|
|
1887 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1888 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1889 | croak ("\3async_pool terminate\2\n"); |
|
|
1890 | |
|
|
1891 | av_clear (GvAV (PL_defgv)); |
|
|
1892 | hv_store ((HV *)SvRV (coro_current), strpair ("desc"), |
|
|
1893 | newSVpvn (strpair ("[async_pool idle]")), 0); |
|
|
1894 | |
|
|
1895 | coro->prio = 0; |
|
|
1896 | |
|
|
1897 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1898 | api_trace (coro_current, 0); |
|
|
1899 | |
|
|
1900 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1901 | } |
|
|
1902 | |
|
|
1903 | |
1335 | MODULE = Coro::State PACKAGE = Coro::AIO |
1904 | MODULE = Coro::State PACKAGE = Coro::AIO |
1336 | |
1905 | |
1337 | SV * |
1906 | SV * |
1338 | _get_state () |
1907 | _get_state () |
1339 | CODE: |
1908 | CODE: |