1 | #define PERL_NO_GET_CONTEXT |
1 | #define PERL_NO_GET_CONTEXT |
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2 | |
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3 | #include "libcoro/coro.c" |
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 | |
7 | #include "patchlevel.h" |
9 | #include "patchlevel.h" |
8 | |
10 | |
9 | #if PATCHLEVEL < 6 |
11 | #if PERL_VERSION < 6 |
10 | # ifndef PL_ppaddr |
12 | # ifndef PL_ppaddr |
11 | # define PL_ppaddr ppaddr |
13 | # define PL_ppaddr ppaddr |
12 | # endif |
14 | # endif |
13 | # ifndef call_sv |
15 | # ifndef call_sv |
14 | # define call_sv perl_call_sv |
16 | # define call_sv perl_call_sv |
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25 | # ifndef IS_PADCONST |
27 | # ifndef IS_PADCONST |
26 | # define IS_PADCONST(v) 0 |
28 | # define IS_PADCONST(v) 0 |
27 | # endif |
29 | # endif |
28 | #endif |
30 | #endif |
29 | |
31 | |
30 | #include "libcoro/coro.c" |
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31 | |
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32 | #include <signal.h> |
32 | #include <errno.h> |
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33 | |
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34 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
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35 | # undef STACKGUARD |
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36 | #endif |
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37 | |
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38 | #ifndef STACKGUARD |
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39 | # define STACKGUARD 0 |
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40 | #endif |
33 | |
41 | |
34 | #ifdef HAVE_MMAP |
42 | #ifdef HAVE_MMAP |
35 | # include <unistd.h> |
43 | # include <unistd.h> |
36 | # include <sys/mman.h> |
44 | # include <sys/mman.h> |
37 | # ifndef MAP_ANONYMOUS |
45 | # ifndef MAP_ANONYMOUS |
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39 | # define MAP_ANONYMOUS MAP_ANON |
47 | # define MAP_ANONYMOUS MAP_ANON |
40 | # else |
48 | # else |
41 | # undef HAVE_MMAP |
49 | # undef HAVE_MMAP |
42 | # endif |
50 | # endif |
43 | # endif |
51 | # endif |
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52 | # include <limits.h> |
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53 | # ifndef PAGESIZE |
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54 | # define PAGESIZE pagesize |
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55 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
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56 | static long pagesize; |
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57 | # else |
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58 | # define BOOT_PAGESIZE |
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59 | # endif |
44 | #endif |
60 | #endif |
45 | |
61 | |
46 | #define SUB_INIT "Coro::State::initialize" |
62 | #define SUB_INIT "Coro::State::initialize" |
47 | #define UCORO_STATE "_coro_state" |
63 | #define UCORO_STATE "_coro_state" |
48 | |
64 | |
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57 | |
73 | |
58 | #include "CoroAPI.h" |
74 | #include "CoroAPI.h" |
59 | |
75 | |
60 | #ifdef USE_ITHREADS |
76 | #ifdef USE_ITHREADS |
61 | static perl_mutex coro_mutex; |
77 | static perl_mutex coro_mutex; |
62 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
78 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
63 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
79 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
64 | #else |
80 | #else |
65 | # define LOCK 0 |
81 | # define LOCK (void)0 |
66 | # define UNLOCK 0 |
82 | # define UNLOCK (void)0 |
67 | #endif |
83 | #endif |
68 | |
84 | |
69 | static struct CoroAPI coroapi; |
85 | static struct CoroAPI coroapi; |
70 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
86 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
71 | static HV *coro_state_stash; |
87 | static HV *coro_state_stash; |
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109 | AV *mainstack; |
125 | AV *mainstack; |
110 | SV **stack_sp; |
126 | SV **stack_sp; |
111 | OP *op; |
127 | OP *op; |
112 | SV **curpad; |
128 | SV **curpad; |
113 | AV *comppad; |
129 | AV *comppad; |
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130 | CV *compcv; |
114 | SV **stack_base; |
131 | SV **stack_base; |
115 | SV **stack_max; |
132 | SV **stack_max; |
116 | SV **tmps_stack; |
133 | SV **tmps_stack; |
117 | I32 tmps_floor; |
134 | I32 tmps_floor; |
118 | I32 tmps_ix; |
135 | I32 tmps_ix; |
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127 | I32 savestack_ix; |
144 | I32 savestack_ix; |
128 | I32 savestack_max; |
145 | I32 savestack_max; |
129 | OP **retstack; |
146 | OP **retstack; |
130 | I32 retstack_ix; |
147 | I32 retstack_ix; |
131 | I32 retstack_max; |
148 | I32 retstack_max; |
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149 | PMOP *curpm; |
132 | COP *curcop; |
150 | COP *curcop; |
133 | JMPENV *top_env; |
151 | JMPENV *top_env; |
134 | |
152 | |
135 | /* data associated with this coroutine (initial args) */ |
153 | /* data associated with this coroutine (initial args) */ |
136 | AV *args; |
154 | AV *args; |
137 | }; |
155 | }; |
138 | |
156 | |
139 | typedef struct coro *Coro__State; |
157 | typedef struct coro *Coro__State; |
140 | typedef struct coro *Coro__State_or_hashref; |
158 | typedef struct coro *Coro__State_or_hashref; |
141 | |
159 | |
142 | /* mostly copied from op.c:cv_clone2 */ |
160 | static AV * |
143 | STATIC AV * |
161 | coro_clone_padlist (pTHX_ CV *cv) |
144 | clone_padlist (pTHX_ AV *protopadlist) |
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145 | { |
162 | { |
146 | AV *av; |
163 | AV *padlist = CvPADLIST (cv); |
147 | I32 ix; |
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148 | AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE); |
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149 | AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE); |
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150 | SV **pname = AvARRAY (protopad_name); |
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151 | SV **ppad = AvARRAY (protopad); |
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152 | I32 fname = AvFILLp (protopad_name); |
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153 | I32 fpad = AvFILLp (protopad); |
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154 | AV *newpadlist, *newpad_name, *newpad; |
164 | AV *newpadlist, *newpad; |
155 | SV **npad; |
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156 | |
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157 | newpad_name = newAV (); |
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158 | for (ix = fname; ix >= 0; ix--) |
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159 | av_store (newpad_name, ix, SvREFCNT_inc (pname[ix])); |
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160 | |
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161 | newpad = newAV (); |
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162 | av_fill (newpad, AvFILLp (protopad)); |
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163 | npad = AvARRAY (newpad); |
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164 | |
165 | |
165 | newpadlist = newAV (); |
166 | newpadlist = newAV (); |
166 | AvREAL_off (newpadlist); |
167 | AvREAL_off (newpadlist); |
167 | av_store (newpadlist, 0, (SV *) newpad_name); |
168 | #if PERL_VERSION < 9 |
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169 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
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170 | #else |
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171 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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172 | #endif |
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173 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
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174 | --AvFILLp (padlist); |
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175 | |
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176 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
168 | av_store (newpadlist, 1, (SV *) newpad); |
177 | av_store (newpadlist, 1, (SV *)newpad); |
169 | |
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170 | av = newAV (); /* will be @_ */ |
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171 | av_extend (av, 0); |
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172 | av_store (newpad, 0, (SV *) av); |
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173 | AvFLAGS (av) = AVf_REIFY; |
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174 | |
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175 | for (ix = fpad; ix > 0; ix--) |
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176 | { |
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177 | SV *namesv = (ix <= fname) ? pname[ix] : Nullsv; |
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178 | |
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179 | if (namesv && namesv != &PL_sv_undef) |
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180 | { |
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181 | char *name = SvPVX (namesv); /* XXX */ |
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182 | |
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183 | if (SvFLAGS (namesv) & SVf_FAKE || *name == '&') |
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184 | { /* lexical from outside? */ |
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185 | npad[ix] = SvREFCNT_inc (ppad[ix]); |
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186 | } |
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187 | else |
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188 | { /* our own lexical */ |
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189 | SV *sv; |
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190 | if (*name == '&') |
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191 | sv = SvREFCNT_inc (ppad[ix]); |
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192 | else if (*name == '@') |
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193 | sv = (SV *) newAV (); |
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194 | else if (*name == '%') |
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195 | sv = (SV *) newHV (); |
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196 | else |
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197 | sv = NEWSV (0, 0); |
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198 | |
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199 | #ifdef SvPADBUSY |
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200 | if (!SvPADBUSY (sv)) |
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201 | #endif |
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202 | SvPADMY_on (sv); |
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203 | |
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204 | npad[ix] = sv; |
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205 | } |
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206 | } |
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207 | else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix])) |
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208 | { |
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209 | npad[ix] = SvREFCNT_inc (ppad[ix]); |
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210 | } |
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211 | else |
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212 | { |
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213 | SV *sv = NEWSV (0, 0); |
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214 | SvPADTMP_on (sv); |
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215 | npad[ix] = sv; |
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216 | } |
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217 | } |
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218 | |
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219 | #if 0 /* return -ENOTUNDERSTOOD */ |
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220 | /* Now that vars are all in place, clone nested closures. */ |
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221 | |
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222 | for (ix = fpad; ix > 0; ix--) { |
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223 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; |
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224 | if (namesv |
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225 | && namesv != &PL_sv_undef |
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226 | && !(SvFLAGS(namesv) & SVf_FAKE) |
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227 | && *SvPVX(namesv) == '&' |
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228 | && CvCLONE(ppad[ix])) |
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229 | { |
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230 | CV *kid = cv_clone((CV*)ppad[ix]); |
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231 | SvREFCNT_dec(ppad[ix]); |
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232 | CvCLONE_on(kid); |
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233 | SvPADMY_on(kid); |
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234 | npad[ix] = (SV*)kid; |
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235 | } |
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236 | } |
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237 | #endif |
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238 | |
178 | |
239 | return newpadlist; |
179 | return newpadlist; |
240 | } |
180 | } |
241 | |
181 | |
242 | STATIC void |
182 | static void |
243 | free_padlist (pTHX_ AV *padlist) |
183 | free_padlist (pTHX_ AV *padlist) |
244 | { |
184 | { |
245 | /* may be during global destruction */ |
185 | /* may be during global destruction */ |
246 | if (SvREFCNT (padlist)) |
186 | if (SvREFCNT (padlist)) |
247 | { |
187 | { |
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261 | |
201 | |
262 | SvREFCNT_dec ((SV*)padlist); |
202 | SvREFCNT_dec ((SV*)padlist); |
263 | } |
203 | } |
264 | } |
204 | } |
265 | |
205 | |
266 | STATIC int |
206 | static int |
267 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
207 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
268 | { |
208 | { |
269 | AV *padlist; |
209 | AV *padlist; |
270 | AV *av = (AV *)mg->mg_obj; |
210 | AV *av = (AV *)mg->mg_obj; |
271 | |
211 | |
272 | /* casting is fun. */ |
212 | /* casting is fun. */ |
273 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
213 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
274 | free_padlist (aTHX_ padlist); |
214 | free_padlist (aTHX_ padlist); |
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215 | |
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216 | SvREFCNT_dec (av); |
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217 | |
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218 | return 0; |
275 | } |
219 | } |
276 | |
220 | |
277 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
221 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
278 | |
222 | |
279 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
223 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
280 | |
224 | |
281 | /* the next two functions merely cache the padlists */ |
225 | /* the next two functions merely cache the padlists */ |
282 | STATIC void |
226 | static void |
283 | get_padlist (pTHX_ CV *cv) |
227 | get_padlist (pTHX_ CV *cv) |
284 | { |
228 | { |
285 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
229 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
286 | |
230 | |
287 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
231 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
288 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
232 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
289 | else |
233 | else |
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234 | { |
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235 | #if 0 |
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236 | /* this should work - but it doesn't :( */ |
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237 | CV *cp = Perl_cv_clone (aTHX_ cv); |
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238 | CvPADLIST (cv) = CvPADLIST (cp); |
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239 | CvPADLIST (cp) = 0; |
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240 | SvREFCNT_dec (cp); |
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241 | #else |
290 | CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv)); |
242 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
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243 | #endif |
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244 | } |
291 | } |
245 | } |
292 | |
246 | |
293 | STATIC void |
247 | static void |
294 | put_padlist (pTHX_ CV *cv) |
248 | put_padlist (pTHX_ CV *cv) |
295 | { |
249 | { |
296 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
250 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
297 | |
251 | |
298 | if (!mg) |
252 | if (!mg) |
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325 | PL_mainstack = c->mainstack; |
279 | PL_mainstack = c->mainstack; |
326 | PL_stack_sp = c->stack_sp; |
280 | PL_stack_sp = c->stack_sp; |
327 | PL_op = c->op; |
281 | PL_op = c->op; |
328 | PL_curpad = c->curpad; |
282 | PL_curpad = c->curpad; |
329 | PL_comppad = c->comppad; |
283 | PL_comppad = c->comppad; |
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284 | PL_compcv = c->compcv; |
330 | PL_stack_base = c->stack_base; |
285 | PL_stack_base = c->stack_base; |
331 | PL_stack_max = c->stack_max; |
286 | PL_stack_max = c->stack_max; |
332 | PL_tmps_stack = c->tmps_stack; |
287 | PL_tmps_stack = c->tmps_stack; |
333 | PL_tmps_floor = c->tmps_floor; |
288 | PL_tmps_floor = c->tmps_floor; |
334 | PL_tmps_ix = c->tmps_ix; |
289 | PL_tmps_ix = c->tmps_ix; |
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340 | PL_scopestack_ix = c->scopestack_ix; |
295 | PL_scopestack_ix = c->scopestack_ix; |
341 | PL_scopestack_max = c->scopestack_max; |
296 | PL_scopestack_max = c->scopestack_max; |
342 | PL_savestack = c->savestack; |
297 | PL_savestack = c->savestack; |
343 | PL_savestack_ix = c->savestack_ix; |
298 | PL_savestack_ix = c->savestack_ix; |
344 | PL_savestack_max = c->savestack_max; |
299 | PL_savestack_max = c->savestack_max; |
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300 | #if PERL_VERSION < 9 |
345 | PL_retstack = c->retstack; |
301 | PL_retstack = c->retstack; |
346 | PL_retstack_ix = c->retstack_ix; |
302 | PL_retstack_ix = c->retstack_ix; |
347 | PL_retstack_max = c->retstack_max; |
303 | PL_retstack_max = c->retstack_max; |
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304 | #endif |
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305 | PL_curpm = c->curpm; |
348 | PL_curcop = c->curcop; |
306 | PL_curcop = c->curcop; |
349 | PL_top_env = c->top_env; |
307 | PL_top_env = c->top_env; |
350 | |
308 | |
351 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
309 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
352 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
310 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
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411 | } |
369 | } |
412 | |
370 | |
413 | PUSHs ((SV *)CvPADLIST(cv)); |
371 | PUSHs ((SV *)CvPADLIST(cv)); |
414 | PUSHs ((SV *)cv); |
372 | PUSHs ((SV *)cv); |
415 | |
373 | |
416 | get_padlist (aTHX_ cv); /* this is a monster */ |
374 | get_padlist (aTHX_ cv); |
417 | } |
375 | } |
418 | } |
376 | } |
419 | #ifdef CXt_FORMAT |
377 | #ifdef CXt_FORMAT |
420 | else if (CxTYPE(cx) == CXt_FORMAT) |
378 | else if (CxTYPE(cx) == CXt_FORMAT) |
421 | { |
379 | { |
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449 | c->mainstack = PL_mainstack; |
407 | c->mainstack = PL_mainstack; |
450 | c->stack_sp = PL_stack_sp; |
408 | c->stack_sp = PL_stack_sp; |
451 | c->op = PL_op; |
409 | c->op = PL_op; |
452 | c->curpad = PL_curpad; |
410 | c->curpad = PL_curpad; |
453 | c->comppad = PL_comppad; |
411 | c->comppad = PL_comppad; |
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412 | c->compcv = PL_compcv; |
454 | c->stack_base = PL_stack_base; |
413 | c->stack_base = PL_stack_base; |
455 | c->stack_max = PL_stack_max; |
414 | c->stack_max = PL_stack_max; |
456 | c->tmps_stack = PL_tmps_stack; |
415 | c->tmps_stack = PL_tmps_stack; |
457 | c->tmps_floor = PL_tmps_floor; |
416 | c->tmps_floor = PL_tmps_floor; |
458 | c->tmps_ix = PL_tmps_ix; |
417 | c->tmps_ix = PL_tmps_ix; |
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464 | c->scopestack_ix = PL_scopestack_ix; |
423 | c->scopestack_ix = PL_scopestack_ix; |
465 | c->scopestack_max = PL_scopestack_max; |
424 | c->scopestack_max = PL_scopestack_max; |
466 | c->savestack = PL_savestack; |
425 | c->savestack = PL_savestack; |
467 | c->savestack_ix = PL_savestack_ix; |
426 | c->savestack_ix = PL_savestack_ix; |
468 | c->savestack_max = PL_savestack_max; |
427 | c->savestack_max = PL_savestack_max; |
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428 | #if PERL_VERSION < 9 |
469 | c->retstack = PL_retstack; |
429 | c->retstack = PL_retstack; |
470 | c->retstack_ix = PL_retstack_ix; |
430 | c->retstack_ix = PL_retstack_ix; |
471 | c->retstack_max = PL_retstack_max; |
431 | c->retstack_max = PL_retstack_max; |
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432 | #endif |
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433 | c->curpm = PL_curpm; |
472 | c->curcop = PL_curcop; |
434 | c->curcop = PL_curcop; |
473 | c->top_env = PL_top_env; |
435 | c->top_env = PL_top_env; |
474 | } |
436 | } |
475 | |
437 | |
476 | /* |
438 | /* |
477 | * allocate various perl stacks. This is an exact copy |
439 | * allocate various perl stacks. This is an exact copy |
478 | * of perl.c:init_stacks, except that it uses less memory |
440 | * of perl.c:init_stacks, except that it uses less memory |
479 | * on the (sometimes correct) assumption that coroutines do |
441 | * on the (sometimes correct) assumption that coroutines do |
480 | * not usually need a lot of stackspace. |
442 | * not usually need a lot of stackspace. |
481 | */ |
443 | */ |
482 | STATIC void |
444 | static void |
483 | coro_init_stacks (pTHX) |
445 | coro_init_stacks (pTHX) |
484 | { |
446 | { |
485 | LOCK; |
447 | LOCK; |
486 | |
448 | |
487 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
449 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
… | |
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512 | |
474 | |
513 | New(54,PL_savestack,96,ANY); |
475 | New(54,PL_savestack,96,ANY); |
514 | PL_savestack_ix = 0; |
476 | PL_savestack_ix = 0; |
515 | PL_savestack_max = 96; |
477 | PL_savestack_max = 96; |
516 | |
478 | |
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479 | #if PERL_VERSION < 9 |
517 | New(54,PL_retstack,8,OP*); |
480 | New(54,PL_retstack,8,OP*); |
518 | PL_retstack_ix = 0; |
481 | PL_retstack_ix = 0; |
519 | PL_retstack_max = 8; |
482 | PL_retstack_max = 8; |
|
|
483 | #endif |
520 | |
484 | |
521 | UNLOCK; |
485 | UNLOCK; |
522 | } |
486 | } |
523 | |
487 | |
524 | /* |
488 | /* |
525 | * destroy the stacks, the callchain etc... |
489 | * destroy the stacks, the callchain etc... |
526 | */ |
490 | */ |
527 | STATIC void |
491 | static void |
528 | destroy_stacks(pTHX) |
492 | destroy_stacks(pTHX) |
529 | { |
493 | { |
530 | if (!IN_DESTRUCT) |
494 | if (!IN_DESTRUCT) |
531 | { |
495 | { |
532 | /* is this ugly, I ask? */ |
496 | /* is this ugly, I ask? */ |
… | |
… | |
564 | |
528 | |
565 | Safefree (PL_tmps_stack); |
529 | Safefree (PL_tmps_stack); |
566 | Safefree (PL_markstack); |
530 | Safefree (PL_markstack); |
567 | Safefree (PL_scopestack); |
531 | Safefree (PL_scopestack); |
568 | Safefree (PL_savestack); |
532 | Safefree (PL_savestack); |
|
|
533 | #if PERL_VERSION < 9 |
569 | Safefree (PL_retstack); |
534 | Safefree (PL_retstack); |
|
|
535 | #endif |
570 | } |
536 | } |
571 | |
537 | |
572 | static void |
538 | static void |
573 | allocate_stack (Coro__State ctx, int alloc) |
539 | allocate_stack (Coro__State ctx, int alloc) |
574 | { |
540 | { |
… | |
… | |
581 | stack->gencnt = ctx->gencnt = 0; |
547 | stack->gencnt = ctx->gencnt = 0; |
582 | |
548 | |
583 | if (alloc) |
549 | if (alloc) |
584 | { |
550 | { |
585 | #if HAVE_MMAP |
551 | #if HAVE_MMAP |
586 | stack->ssize = 16384 * sizeof (long); /* mmap should do allocate-on-write for us */ |
552 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */ |
587 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
553 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
588 | if (stack->sptr == (void *)-1) |
554 | if (stack->sptr != (void *)-1) |
589 | #endif |
|
|
590 | { |
555 | { |
591 | /*FIXME*//*D*//* reasonable stack size! */ |
556 | # if STACKGUARD |
|
|
557 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
558 | # endif |
|
|
559 | } |
|
|
560 | else |
|
|
561 | #endif |
|
|
562 | { |
592 | stack->ssize = - (8192 * sizeof (long)); |
563 | stack->ssize = - (STACKSIZE * (long)sizeof (long)); |
593 | New (0, stack->sptr, 8192, long); |
564 | New (0, stack->sptr, STACKSIZE, long); |
594 | } |
565 | } |
595 | } |
566 | } |
596 | else |
567 | else |
597 | stack->sptr = 0; |
568 | stack->sptr = 0; |
598 | |
569 | |
… | |
… | |
658 | } |
629 | } |
659 | else |
630 | else |
660 | { |
631 | { |
661 | UNOP myop; |
632 | UNOP myop; |
662 | |
633 | |
663 | PL_op = (OP *)&myop; |
|
|
664 | |
|
|
665 | Zero(&myop, 1, UNOP); |
634 | Zero(&myop, 1, UNOP); |
666 | myop.op_next = Nullop; |
635 | myop.op_next = Nullop; |
667 | myop.op_flags = OPf_WANT_VOID; |
636 | myop.op_flags = OPf_WANT_VOID; |
|
|
637 | |
|
|
638 | PL_op = (OP *)&myop; |
668 | |
639 | |
669 | PUSHMARK(SP); |
640 | PUSHMARK(SP); |
670 | XPUSHs (sub_init); |
641 | XPUSHs (sub_init); |
671 | /* |
642 | /* |
672 | * the next line is slightly wrong, as PL_op->op_next |
643 | * the next line is slightly wrong, as PL_op->op_next |
… | |
… | |
689 | /* |
660 | /* |
690 | * this is a _very_ stripped down perl interpreter ;) |
661 | * this is a _very_ stripped down perl interpreter ;) |
691 | */ |
662 | */ |
692 | dTHX; |
663 | dTHX; |
693 | Coro__State ctx = (Coro__State)arg; |
664 | Coro__State ctx = (Coro__State)arg; |
694 | JMPENV coro_start_env; |
|
|
695 | |
665 | |
696 | PL_top_env = &ctx->start_env; |
666 | PL_top_env = &ctx->start_env; |
697 | |
667 | |
698 | ctx->cursp = 0; |
668 | ctx->cursp = 0; |
699 | PL_op = PL_op->op_next; |
669 | PL_op = PL_op->op_next; |
700 | CALLRUNOPS(aTHX); |
670 | CALLRUNOPS(aTHX); |
701 | |
671 | |
702 | abort (); |
672 | abort (); |
703 | } |
673 | } |
704 | |
674 | |
705 | STATIC void |
675 | static void |
706 | transfer (pTHX_ struct coro *prev, struct coro *next, int flags) |
676 | transfer (pTHX_ struct coro *prev, struct coro *next, int flags) |
707 | { |
677 | { |
708 | dSTACKLEVEL; |
678 | dSTACKLEVEL; |
709 | |
679 | |
710 | if (prev != next) |
680 | if (prev != next) |
… | |
… | |
822 | if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \ |
792 | if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \ |
823 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
793 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
824 | \ |
794 | \ |
825 | } while(0) |
795 | } while(0) |
826 | |
796 | |
827 | #define SvSTATE(sv) (struct coro *)SvIV (sv) |
797 | #define SvSTATE(sv) INT2PTR (struct coro *, SvIV (sv)) |
828 | |
798 | |
829 | static void |
799 | static void |
830 | api_transfer(pTHX_ SV *prev, SV *next, int flags) |
800 | api_transfer(pTHX_ SV *prev, SV *next, int flags) |
831 | { |
801 | { |
832 | SV_CORO (prev, "Coro::transfer"); |
802 | SV_CORO (prev, "Coro::transfer"); |
… | |
… | |
850 | static int coro_nready; |
820 | static int coro_nready; |
851 | |
821 | |
852 | static void |
822 | static void |
853 | coro_enq (pTHX_ SV *sv) |
823 | coro_enq (pTHX_ SV *sv) |
854 | { |
824 | { |
|
|
825 | SV **xprio; |
|
|
826 | int prio; |
|
|
827 | |
855 | if (SvTYPE (sv) == SVt_PVHV) |
828 | if (SvTYPE (sv) != SVt_PVHV) |
856 | { |
|
|
857 | SV **xprio = hv_fetch ((HV *)sv, "prio", 4, 0); |
|
|
858 | int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; |
|
|
859 | |
|
|
860 | prio = prio > PRIO_MAX ? PRIO_MAX |
|
|
861 | : prio < PRIO_MIN ? PRIO_MIN |
|
|
862 | : prio; |
|
|
863 | |
|
|
864 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
865 | coro_nready++; |
|
|
866 | |
|
|
867 | return; |
|
|
868 | } |
|
|
869 | |
|
|
870 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
829 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
830 | |
|
|
831 | xprio = hv_fetch ((HV *)sv, "prio", 4, 0); |
|
|
832 | prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; |
|
|
833 | |
|
|
834 | prio = prio > PRIO_MAX ? PRIO_MAX |
|
|
835 | : prio < PRIO_MIN ? PRIO_MIN |
|
|
836 | : prio; |
|
|
837 | |
|
|
838 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
839 | coro_nready++; |
871 | } |
840 | } |
872 | |
841 | |
873 | static SV * |
842 | static SV * |
874 | coro_deq (pTHX_ int min_prio) |
843 | coro_deq (pTHX_ int min_prio) |
875 | { |
844 | { |
… | |
… | |
950 | BOOT: |
919 | BOOT: |
951 | { /* {} necessary for stoopid perl-5.6.x */ |
920 | { /* {} necessary for stoopid perl-5.6.x */ |
952 | #ifdef USE_ITHREADS |
921 | #ifdef USE_ITHREADS |
953 | MUTEX_INIT (&coro_mutex); |
922 | MUTEX_INIT (&coro_mutex); |
954 | #endif |
923 | #endif |
|
|
924 | BOOT_PAGESIZE; |
955 | |
925 | |
956 | ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); |
926 | ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); |
957 | PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); |
927 | PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); |
958 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
928 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
959 | |
929 | |
… | |
… | |
984 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
954 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
985 | /*coro->stack = 0;*/ |
955 | /*coro->stack = 0;*/ |
986 | |
956 | |
987 | /* same as JMPENV_BOOTSTRAP */ |
957 | /* same as JMPENV_BOOTSTRAP */ |
988 | /* we might be able to recycle start_env, but safe is safe */ |
958 | /* we might be able to recycle start_env, but safe is safe */ |
989 | /*Zero(&coro->start_env, 1, JMPENV);*/ |
959 | /*Zero (&coro->start_env, 1, JMPENV);*/ |
990 | coro->start_env.je_ret = -1; |
960 | coro->start_env.je_ret = -1; |
991 | coro->start_env.je_mustcatch = TRUE; |
961 | coro->start_env.je_mustcatch = TRUE; |
992 | |
962 | |
993 | RETVAL = coro; |
963 | RETVAL = coro; |
994 | OUTPUT: |
964 | OUTPUT: |
… | |
… | |
1015 | if (coro->mainstack && coro->mainstack != main_mainstack) |
985 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1016 | { |
986 | { |
1017 | struct coro temp; |
987 | struct coro temp; |
1018 | |
988 | |
1019 | PUTBACK; |
989 | PUTBACK; |
1020 | SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); |
990 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
1021 | LOAD(aTHX_ coro); |
991 | LOAD (aTHX_ coro); |
1022 | SPAGAIN; |
992 | SPAGAIN; |
1023 | |
993 | |
1024 | destroy_stacks (aTHX); |
994 | destroy_stacks (aTHX); |
1025 | |
995 | |
1026 | LOAD((&temp)); /* this will get rid of defsv etc.. */ |
996 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
1027 | SPAGAIN; |
997 | SPAGAIN; |
1028 | |
998 | |
1029 | coro->mainstack = 0; |
999 | coro->mainstack = 0; |
1030 | } |
1000 | } |
1031 | |
1001 | |
… | |
… | |
1046 | |
1016 | |
1047 | void |
1017 | void |
1048 | yield(...) |
1018 | yield(...) |
1049 | PROTOTYPE: @ |
1019 | PROTOTYPE: @ |
1050 | CODE: |
1020 | CODE: |
1051 | static SV *returnstk; |
1021 | SV *yieldstack; |
1052 | SV *sv; |
1022 | SV *sv; |
1053 | AV *defav = GvAV (PL_defgv); |
1023 | AV *defav = GvAV (PL_defgv); |
1054 | struct coro *prev, *next; |
1024 | struct coro *prev, *next; |
1055 | |
1025 | |
1056 | if (!returnstk) |
1026 | yieldstack = *hv_fetch ( |
1057 | returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE)); |
1027 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1028 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1029 | 0 |
|
|
1030 | ); |
1058 | |
1031 | |
1059 | /* set up @_ -- ugly */ |
1032 | /* set up @_ -- ugly */ |
1060 | av_clear (defav); |
1033 | av_clear (defav); |
1061 | av_fill (defav, items - 1); |
1034 | av_fill (defav, items - 1); |
1062 | while (items--) |
1035 | while (items--) |
1063 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
1036 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
1064 | |
1037 | |
1065 | mg_get (returnstk); /* isn't documentation wrong for mg_get? */ |
|
|
1066 | sv = av_pop ((AV *)SvRV (returnstk)); |
1038 | sv = av_pop ((AV *)SvRV (yieldstack)); |
1067 | prev = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); |
1039 | prev = INT2PTR (struct coro *, SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0)))); |
1068 | next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); |
1040 | next = INT2PTR (struct coro *, SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0)))); |
1069 | SvREFCNT_dec (sv); |
1041 | SvREFCNT_dec (sv); |
1070 | |
1042 | |
1071 | transfer(aTHX_ prev, next, 0); |
1043 | transfer (aTHX_ prev, next, 0); |
1072 | |
1044 | |
1073 | MODULE = Coro::State PACKAGE = Coro |
1045 | MODULE = Coro::State PACKAGE = Coro |
1074 | |
1046 | |
1075 | # this is slightly dirty (should expose a c-level api) |
1047 | # this is slightly dirty (should expose a c-level api) |
1076 | |
1048 | |
… | |
… | |
1136 | cede(...) |
1108 | cede(...) |
1137 | PROTOTYPE: |
1109 | PROTOTYPE: |
1138 | CODE: |
1110 | CODE: |
1139 | api_cede (); |
1111 | api_cede (); |
1140 | |
1112 | |
|
|
1113 | # and these are hacks |
|
|
1114 | SV * |
|
|
1115 | _aio_get_state () |
|
|
1116 | CODE: |
|
|
1117 | { |
|
|
1118 | struct { |
|
|
1119 | int errorno; |
|
|
1120 | int laststype; |
|
|
1121 | int laststatval; |
|
|
1122 | Stat_t statcache; |
|
|
1123 | } data; |
|
|
1124 | |
|
|
1125 | data.errorno = errno; |
|
|
1126 | data.laststype = PL_laststype; |
|
|
1127 | data.laststatval = PL_laststatval; |
|
|
1128 | data.statcache = PL_statcache; |
|
|
1129 | |
|
|
1130 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1131 | } |
|
|
1132 | OUTPUT: |
|
|
1133 | RETVAL |
|
|
1134 | |
|
|
1135 | void |
|
|
1136 | _aio_set_state (char *data_) |
|
|
1137 | PROTOTYPE: $ |
|
|
1138 | CODE: |
|
|
1139 | { |
|
|
1140 | struct { |
|
|
1141 | int errorno; |
|
|
1142 | int laststype; |
|
|
1143 | int laststatval; |
|
|
1144 | Stat_t statcache; |
|
|
1145 | } *data = (void *)data_; |
|
|
1146 | |
|
|
1147 | errno = data->errorno; |
|
|
1148 | PL_laststype = data->laststype; |
|
|
1149 | PL_laststatval = data->laststatval; |
|
|
1150 | PL_statcache = data->statcache; |
|
|
1151 | } |