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1 | #define PERL_NO_GET_CONTEXT |
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2 | |
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3 | #include "libcoro/coro.c" |
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4 | |
1 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
2 | #include "perl.h" |
6 | #include "perl.h" |
3 | #include "XSUB.h" |
7 | #include "XSUB.h" |
4 | |
8 | |
5 | #include "patchlevel.h" |
9 | #include "patchlevel.h" |
6 | |
10 | |
7 | #if PATCHLEVEL < 6 |
11 | #if PERL_VERSION < 6 |
8 | # ifndef PL_ppaddr |
12 | # ifndef PL_ppaddr |
9 | # define PL_ppaddr ppaddr |
13 | # define PL_ppaddr ppaddr |
10 | # endif |
14 | # endif |
11 | # ifndef call_sv |
15 | # ifndef call_sv |
12 | # define call_sv perl_call_sv |
16 | # define call_sv perl_call_sv |
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23 | # ifndef IS_PADCONST |
27 | # ifndef IS_PADCONST |
24 | # define IS_PADCONST(v) 0 |
28 | # define IS_PADCONST(v) 0 |
25 | # endif |
29 | # endif |
26 | #endif |
30 | #endif |
27 | |
31 | |
28 | #include "libcoro/coro.c" |
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29 | |
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30 | #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 |
31 | |
41 | |
32 | #ifdef HAVE_MMAP |
42 | #ifdef HAVE_MMAP |
33 | # include <unistd.h> |
43 | # include <unistd.h> |
34 | # include <sys/mman.h> |
44 | # include <sys/mman.h> |
35 | # ifndef MAP_ANONYMOUS |
45 | # ifndef MAP_ANONYMOUS |
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37 | # define MAP_ANONYMOUS MAP_ANON |
47 | # define MAP_ANONYMOUS MAP_ANON |
38 | # else |
48 | # else |
39 | # undef HAVE_MMAP |
49 | # undef HAVE_MMAP |
40 | # endif |
50 | # endif |
41 | # 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 |
42 | #endif |
60 | #endif |
43 | |
61 | |
44 | #define SUB_INIT "Coro::State::initialize" |
62 | #define SUB_INIT "Coro::State::initialize" |
45 | #define UCORO_STATE "_coro_state" |
63 | #define UCORO_STATE "_coro_state" |
46 | |
64 | |
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53 | |
71 | |
54 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
72 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
55 | |
73 | |
56 | #include "CoroAPI.h" |
74 | #include "CoroAPI.h" |
57 | |
75 | |
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76 | #ifdef USE_ITHREADS |
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77 | static perl_mutex coro_mutex; |
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78 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
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79 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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80 | #else |
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81 | # define LOCK (void)0 |
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82 | # define UNLOCK (void)0 |
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83 | #endif |
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84 | |
58 | static struct CoroAPI coroapi; |
85 | static struct CoroAPI coroapi; |
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86 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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87 | static HV *coro_state_stash; |
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88 | static SV *ucoro_state_sv; |
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89 | static U32 ucoro_state_hash; |
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90 | static SV *coro_mortal; /* will be freed after next transfer */ |
59 | |
91 | |
60 | /* this is actually not only the c stack but also c registers etc... */ |
92 | /* this is actually not only the c stack but also c registers etc... */ |
61 | typedef struct { |
93 | typedef struct { |
62 | int refcnt; /* pointer reference counter */ |
94 | int refcnt; /* pointer reference counter */ |
63 | int usecnt; /* shared by how many coroutines */ |
95 | int usecnt; /* shared by how many coroutines */ |
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68 | void *sptr; |
100 | void *sptr; |
69 | long ssize; /* positive == mmap, otherwise malloc */ |
101 | long ssize; /* positive == mmap, otherwise malloc */ |
70 | } coro_stack; |
102 | } coro_stack; |
71 | |
103 | |
72 | struct coro { |
104 | struct coro { |
73 | /* the top-level JMPENV for each coroutine, needed to catch dies. */ |
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74 | JMPENV start_env; |
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75 | |
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76 | /* the optional C context */ |
105 | /* the optional C context */ |
77 | coro_stack *stack; |
106 | coro_stack *stack; |
78 | void *cursp; |
107 | void *cursp; |
79 | int gencnt; |
108 | int gencnt; |
80 | |
109 | |
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93 | AV *mainstack; |
122 | AV *mainstack; |
94 | SV **stack_sp; |
123 | SV **stack_sp; |
95 | OP *op; |
124 | OP *op; |
96 | SV **curpad; |
125 | SV **curpad; |
97 | AV *comppad; |
126 | AV *comppad; |
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127 | CV *compcv; |
98 | SV **stack_base; |
128 | SV **stack_base; |
99 | SV **stack_max; |
129 | SV **stack_max; |
100 | SV **tmps_stack; |
130 | SV **tmps_stack; |
101 | I32 tmps_floor; |
131 | I32 tmps_floor; |
102 | I32 tmps_ix; |
132 | I32 tmps_ix; |
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111 | I32 savestack_ix; |
141 | I32 savestack_ix; |
112 | I32 savestack_max; |
142 | I32 savestack_max; |
113 | OP **retstack; |
143 | OP **retstack; |
114 | I32 retstack_ix; |
144 | I32 retstack_ix; |
115 | I32 retstack_max; |
145 | I32 retstack_max; |
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146 | PMOP *curpm; |
116 | COP *curcop; |
147 | COP *curcop; |
117 | JMPENV *top_env; |
148 | JMPENV *top_env; |
118 | |
149 | |
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150 | /* coro process data */ |
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151 | int prio; |
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152 | |
119 | /* data associated with this coroutine (initial args) */ |
153 | /* data associated with this coroutine (initial args) */ |
120 | AV *args; |
154 | AV *args; |
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155 | int refcnt; |
121 | }; |
156 | }; |
122 | |
157 | |
123 | typedef struct coro *Coro__State; |
158 | typedef struct coro *Coro__State; |
124 | typedef struct coro *Coro__State_or_hashref; |
159 | typedef struct coro *Coro__State_or_hashref; |
125 | |
160 | |
126 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
161 | static AV * |
127 | static HV *coro_state_stash; |
162 | coro_clone_padlist (pTHX_ CV *cv) |
128 | static SV *ucoro_state_sv; |
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129 | static U32 ucoro_state_hash; |
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130 | static HV *padlist_cache; |
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131 | static SV *coro_mortal; /* will be freed after next transfer */ |
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132 | |
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133 | /* mostly copied from op.c:cv_clone2 */ |
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134 | STATIC AV * |
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135 | clone_padlist (AV *protopadlist) |
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136 | { |
163 | { |
137 | AV *av; |
164 | AV *padlist = CvPADLIST (cv); |
138 | I32 ix; |
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139 | AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE); |
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140 | AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE); |
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141 | SV **pname = AvARRAY (protopad_name); |
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142 | SV **ppad = AvARRAY (protopad); |
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143 | I32 fname = AvFILLp (protopad_name); |
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144 | I32 fpad = AvFILLp (protopad); |
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145 | AV *newpadlist, *newpad_name, *newpad; |
165 | AV *newpadlist, *newpad; |
146 | SV **npad; |
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147 | |
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148 | newpad_name = newAV (); |
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149 | for (ix = fname; ix >= 0; ix--) |
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150 | av_store (newpad_name, ix, SvREFCNT_inc (pname[ix])); |
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151 | |
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152 | newpad = newAV (); |
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153 | av_fill (newpad, AvFILLp (protopad)); |
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154 | npad = AvARRAY (newpad); |
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155 | |
166 | |
156 | newpadlist = newAV (); |
167 | newpadlist = newAV (); |
157 | AvREAL_off (newpadlist); |
168 | AvREAL_off (newpadlist); |
158 | av_store (newpadlist, 0, (SV *) newpad_name); |
169 | #if PERL_VERSION < 9 |
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170 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
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171 | #else |
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172 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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173 | #endif |
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174 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
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175 | --AvFILLp (padlist); |
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176 | |
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177 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
159 | av_store (newpadlist, 1, (SV *) newpad); |
178 | av_store (newpadlist, 1, (SV *)newpad); |
160 | |
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161 | av = newAV (); /* will be @_ */ |
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162 | av_extend (av, 0); |
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163 | av_store (newpad, 0, (SV *) av); |
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164 | AvFLAGS (av) = AVf_REIFY; |
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165 | |
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166 | for (ix = fpad; ix > 0; ix--) |
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167 | { |
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168 | SV *namesv = (ix <= fname) ? pname[ix] : Nullsv; |
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169 | if (namesv && namesv != &PL_sv_undef) |
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170 | { |
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171 | char *name = SvPVX (namesv); /* XXX */ |
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172 | if (SvFLAGS (namesv) & SVf_FAKE || *name == '&') |
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173 | { /* lexical from outside? */ |
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174 | npad[ix] = SvREFCNT_inc (ppad[ix]); |
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175 | } |
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176 | else |
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177 | { /* our own lexical */ |
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178 | SV *sv; |
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179 | if (*name == '&') |
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180 | sv = SvREFCNT_inc (ppad[ix]); |
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181 | else if (*name == '@') |
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182 | sv = (SV *) newAV (); |
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183 | else if (*name == '%') |
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184 | sv = (SV *) newHV (); |
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185 | else |
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186 | sv = NEWSV (0, 0); |
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187 | #ifdef SvPADBUSY |
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188 | if (!SvPADBUSY (sv)) |
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189 | #endif |
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190 | SvPADMY_on (sv); |
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191 | npad[ix] = sv; |
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192 | } |
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193 | } |
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194 | else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix])) |
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195 | { |
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196 | npad[ix] = SvREFCNT_inc (ppad[ix]); |
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197 | } |
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198 | else |
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199 | { |
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200 | SV *sv = NEWSV (0, 0); |
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201 | SvPADTMP_on (sv); |
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202 | npad[ix] = sv; |
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203 | } |
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204 | } |
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205 | |
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206 | #if 0 /* return -ENOTUNDERSTOOD */ |
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207 | /* Now that vars are all in place, clone nested closures. */ |
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208 | |
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209 | for (ix = fpad; ix > 0; ix--) { |
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210 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; |
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211 | if (namesv |
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212 | && namesv != &PL_sv_undef |
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213 | && !(SvFLAGS(namesv) & SVf_FAKE) |
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214 | && *SvPVX(namesv) == '&' |
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215 | && CvCLONE(ppad[ix])) |
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216 | { |
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217 | CV *kid = cv_clone((CV*)ppad[ix]); |
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218 | SvREFCNT_dec(ppad[ix]); |
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219 | CvCLONE_on(kid); |
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220 | SvPADMY_on(kid); |
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221 | npad[ix] = (SV*)kid; |
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222 | } |
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223 | } |
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224 | #endif |
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225 | |
179 | |
226 | return newpadlist; |
180 | return newpadlist; |
227 | } |
181 | } |
228 | |
182 | |
229 | STATIC void |
183 | static void |
230 | free_padlist (AV *padlist) |
184 | free_padlist (pTHX_ AV *padlist) |
231 | { |
185 | { |
232 | /* may be during global destruction */ |
186 | /* may be during global destruction */ |
233 | if (SvREFCNT (padlist)) |
187 | if (SvREFCNT (padlist)) |
234 | { |
188 | { |
235 | I32 i = AvFILLp (padlist); |
189 | I32 i = AvFILLp (padlist); |
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248 | |
202 | |
249 | SvREFCNT_dec ((SV*)padlist); |
203 | SvREFCNT_dec ((SV*)padlist); |
250 | } |
204 | } |
251 | } |
205 | } |
252 | |
206 | |
253 | STATIC int |
207 | static int |
254 | coro_cv_free (SV *sv, MAGIC *mg) |
208 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
255 | { |
209 | { |
256 | AV *padlist; |
210 | AV *padlist; |
257 | AV *av = (AV *)mg->mg_obj; |
211 | AV *av = (AV *)mg->mg_obj; |
258 | |
212 | |
259 | /* casting is fun. */ |
213 | /* casting is fun. */ |
260 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
214 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
261 | free_padlist (padlist); |
215 | free_padlist (aTHX_ padlist); |
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216 | |
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217 | SvREFCNT_dec (av); |
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218 | |
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219 | return 0; |
262 | } |
220 | } |
263 | |
221 | |
264 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
222 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
265 | |
223 | |
266 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
224 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
267 | |
225 | |
268 | /* the next two functions merely cache the padlists */ |
226 | /* the next two functions merely cache the padlists */ |
269 | STATIC void |
227 | static void |
270 | get_padlist (CV *cv) |
228 | get_padlist (pTHX_ CV *cv) |
271 | { |
229 | { |
272 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
230 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
273 | |
231 | |
274 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
232 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
275 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
233 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
276 | else |
234 | else |
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235 | { |
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236 | #if 0 |
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237 | /* this should work - but it doesn't :( */ |
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238 | CV *cp = Perl_cv_clone (aTHX_ cv); |
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239 | CvPADLIST (cv) = CvPADLIST (cp); |
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240 | CvPADLIST (cp) = 0; |
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241 | SvREFCNT_dec (cp); |
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242 | #else |
277 | CvPADLIST (cv) = clone_padlist (CvPADLIST (cv)); |
243 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
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244 | #endif |
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245 | } |
278 | } |
246 | } |
279 | |
247 | |
280 | STATIC void |
248 | static void |
281 | put_padlist (CV *cv) |
249 | put_padlist (pTHX_ CV *cv) |
282 | { |
250 | { |
283 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
251 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
284 | |
252 | |
285 | if (!mg) |
253 | if (!mg) |
286 | { |
254 | { |
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312 | PL_mainstack = c->mainstack; |
280 | PL_mainstack = c->mainstack; |
313 | PL_stack_sp = c->stack_sp; |
281 | PL_stack_sp = c->stack_sp; |
314 | PL_op = c->op; |
282 | PL_op = c->op; |
315 | PL_curpad = c->curpad; |
283 | PL_curpad = c->curpad; |
316 | PL_comppad = c->comppad; |
284 | PL_comppad = c->comppad; |
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285 | PL_compcv = c->compcv; |
317 | PL_stack_base = c->stack_base; |
286 | PL_stack_base = c->stack_base; |
318 | PL_stack_max = c->stack_max; |
287 | PL_stack_max = c->stack_max; |
319 | PL_tmps_stack = c->tmps_stack; |
288 | PL_tmps_stack = c->tmps_stack; |
320 | PL_tmps_floor = c->tmps_floor; |
289 | PL_tmps_floor = c->tmps_floor; |
321 | PL_tmps_ix = c->tmps_ix; |
290 | PL_tmps_ix = c->tmps_ix; |
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327 | PL_scopestack_ix = c->scopestack_ix; |
296 | PL_scopestack_ix = c->scopestack_ix; |
328 | PL_scopestack_max = c->scopestack_max; |
297 | PL_scopestack_max = c->scopestack_max; |
329 | PL_savestack = c->savestack; |
298 | PL_savestack = c->savestack; |
330 | PL_savestack_ix = c->savestack_ix; |
299 | PL_savestack_ix = c->savestack_ix; |
331 | PL_savestack_max = c->savestack_max; |
300 | PL_savestack_max = c->savestack_max; |
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301 | #if PERL_VERSION < 9 |
332 | PL_retstack = c->retstack; |
302 | PL_retstack = c->retstack; |
333 | PL_retstack_ix = c->retstack_ix; |
303 | PL_retstack_ix = c->retstack_ix; |
334 | PL_retstack_max = c->retstack_max; |
304 | PL_retstack_max = c->retstack_max; |
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305 | #endif |
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306 | PL_curpm = c->curpm; |
335 | PL_curcop = c->curcop; |
307 | PL_curcop = c->curcop; |
336 | PL_top_env = c->top_env; |
308 | PL_top_env = c->top_env; |
337 | |
309 | |
338 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
310 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
339 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
311 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
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348 | { |
320 | { |
349 | AV *padlist = (AV *)POPs; |
321 | AV *padlist = (AV *)POPs; |
350 | |
322 | |
351 | if (padlist) |
323 | if (padlist) |
352 | { |
324 | { |
353 | put_padlist (cv); /* mark this padlist as available */ |
325 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
354 | CvPADLIST(cv) = padlist; |
326 | CvPADLIST(cv) = padlist; |
355 | #ifdef USE_THREADS |
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356 | /*CvOWNER(cv) = (struct perl_thread *)POPs;*/ |
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357 | #endif |
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358 | } |
327 | } |
359 | |
328 | |
360 | ++CvDEPTH(cv); |
329 | ++CvDEPTH(cv); |
361 | } |
330 | } |
362 | |
331 | |
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389 | if (CxTYPE(cx) == CXt_SUB) |
358 | if (CxTYPE(cx) == CXt_SUB) |
390 | { |
359 | { |
391 | CV *cv = cx->blk_sub.cv; |
360 | CV *cv = cx->blk_sub.cv; |
392 | if (CvDEPTH(cv)) |
361 | if (CvDEPTH(cv)) |
393 | { |
362 | { |
394 | #ifdef USE_THREADS |
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395 | /*XPUSHs ((SV *)CvOWNER(cv));*/ |
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396 | /*CvOWNER(cv) = 0;*/ |
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397 | /*error must unlock this cv etc.. etc...*/ |
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398 | #endif |
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399 | EXTEND (SP, CvDEPTH(cv)*2); |
363 | EXTEND (SP, CvDEPTH(cv)*2); |
400 | |
364 | |
401 | while (--CvDEPTH(cv)) |
365 | while (--CvDEPTH(cv)) |
402 | { |
366 | { |
403 | /* this tells the restore code to increment CvDEPTH */ |
367 | /* this tells the restore code to increment CvDEPTH */ |
… | |
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406 | } |
370 | } |
407 | |
371 | |
408 | PUSHs ((SV *)CvPADLIST(cv)); |
372 | PUSHs ((SV *)CvPADLIST(cv)); |
409 | PUSHs ((SV *)cv); |
373 | PUSHs ((SV *)cv); |
410 | |
374 | |
411 | get_padlist (cv); /* this is a monster */ |
375 | get_padlist (aTHX_ cv); |
412 | } |
376 | } |
413 | } |
377 | } |
414 | #ifdef CXt_FORMAT |
378 | #ifdef CXt_FORMAT |
415 | else if (CxTYPE(cx) == CXt_FORMAT) |
379 | else if (CxTYPE(cx) == CXt_FORMAT) |
416 | { |
380 | { |
… | |
… | |
444 | c->mainstack = PL_mainstack; |
408 | c->mainstack = PL_mainstack; |
445 | c->stack_sp = PL_stack_sp; |
409 | c->stack_sp = PL_stack_sp; |
446 | c->op = PL_op; |
410 | c->op = PL_op; |
447 | c->curpad = PL_curpad; |
411 | c->curpad = PL_curpad; |
448 | c->comppad = PL_comppad; |
412 | c->comppad = PL_comppad; |
|
|
413 | c->compcv = PL_compcv; |
449 | c->stack_base = PL_stack_base; |
414 | c->stack_base = PL_stack_base; |
450 | c->stack_max = PL_stack_max; |
415 | c->stack_max = PL_stack_max; |
451 | c->tmps_stack = PL_tmps_stack; |
416 | c->tmps_stack = PL_tmps_stack; |
452 | c->tmps_floor = PL_tmps_floor; |
417 | c->tmps_floor = PL_tmps_floor; |
453 | c->tmps_ix = PL_tmps_ix; |
418 | c->tmps_ix = PL_tmps_ix; |
… | |
… | |
459 | c->scopestack_ix = PL_scopestack_ix; |
424 | c->scopestack_ix = PL_scopestack_ix; |
460 | c->scopestack_max = PL_scopestack_max; |
425 | c->scopestack_max = PL_scopestack_max; |
461 | c->savestack = PL_savestack; |
426 | c->savestack = PL_savestack; |
462 | c->savestack_ix = PL_savestack_ix; |
427 | c->savestack_ix = PL_savestack_ix; |
463 | c->savestack_max = PL_savestack_max; |
428 | c->savestack_max = PL_savestack_max; |
|
|
429 | #if PERL_VERSION < 9 |
464 | c->retstack = PL_retstack; |
430 | c->retstack = PL_retstack; |
465 | c->retstack_ix = PL_retstack_ix; |
431 | c->retstack_ix = PL_retstack_ix; |
466 | c->retstack_max = PL_retstack_max; |
432 | c->retstack_max = PL_retstack_max; |
|
|
433 | #endif |
|
|
434 | c->curpm = PL_curpm; |
467 | c->curcop = PL_curcop; |
435 | c->curcop = PL_curcop; |
468 | c->top_env = PL_top_env; |
436 | c->top_env = PL_top_env; |
469 | } |
437 | } |
470 | |
438 | |
471 | /* |
439 | /* |
472 | * allocate various perl stacks. This is an exact copy |
440 | * allocate various perl stacks. This is an exact copy |
473 | * of perl.c:init_stacks, except that it uses less memory |
441 | * of perl.c:init_stacks, except that it uses less memory |
474 | * on the (sometimes correct) assumption that coroutines do |
442 | * on the (sometimes correct) assumption that coroutines do |
475 | * not usually need a lot of stackspace. |
443 | * not usually need a lot of stackspace. |
476 | */ |
444 | */ |
477 | STATIC void |
445 | static void |
478 | coro_init_stacks (pTHX) |
446 | coro_init_stacks (pTHX) |
479 | { |
447 | { |
|
|
448 | LOCK; |
|
|
449 | |
480 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
450 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
481 | PL_curstackinfo->si_type = PERLSI_MAIN; |
451 | PL_curstackinfo->si_type = PERLSI_MAIN; |
482 | PL_curstack = PL_curstackinfo->si_stack; |
452 | PL_curstack = PL_curstackinfo->si_stack; |
483 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
453 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
484 | |
454 | |
… | |
… | |
505 | |
475 | |
506 | New(54,PL_savestack,96,ANY); |
476 | New(54,PL_savestack,96,ANY); |
507 | PL_savestack_ix = 0; |
477 | PL_savestack_ix = 0; |
508 | PL_savestack_max = 96; |
478 | PL_savestack_max = 96; |
509 | |
479 | |
|
|
480 | #if PERL_VERSION < 9 |
510 | New(54,PL_retstack,8,OP*); |
481 | New(54,PL_retstack,8,OP*); |
511 | PL_retstack_ix = 0; |
482 | PL_retstack_ix = 0; |
512 | PL_retstack_max = 8; |
483 | PL_retstack_max = 8; |
|
|
484 | #endif |
|
|
485 | |
|
|
486 | UNLOCK; |
513 | } |
487 | } |
514 | |
488 | |
515 | /* |
489 | /* |
516 | * destroy the stacks, the callchain etc... |
490 | * destroy the stacks, the callchain etc... |
517 | */ |
491 | */ |
518 | STATIC void |
492 | static void |
519 | destroy_stacks(pTHX) |
493 | destroy_stacks(pTHX) |
520 | { |
494 | { |
521 | if (!IN_DESTRUCT) |
495 | if (!IN_DESTRUCT) |
522 | { |
496 | { |
523 | /* is this ugly, I ask? */ |
497 | /* is this ugly, I ask? */ |
524 | LEAVE_SCOPE (0); |
498 | LEAVE_SCOPE (0); |
525 | |
499 | |
526 | /* sure it is, but more important: is it correct?? :/ */ |
500 | /* sure it is, but more important: is it correct?? :/ */ |
527 | FREETMPS; |
501 | FREETMPS; |
|
|
502 | |
|
|
503 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
528 | } |
504 | } |
529 | |
505 | |
530 | while (PL_curstackinfo->si_next) |
506 | while (PL_curstackinfo->si_next) |
531 | PL_curstackinfo = PL_curstackinfo->si_next; |
507 | PL_curstackinfo = PL_curstackinfo->si_next; |
532 | |
508 | |
533 | while (PL_curstackinfo) |
509 | while (PL_curstackinfo) |
534 | { |
510 | { |
535 | PERL_SI *p = PL_curstackinfo->si_prev; |
511 | PERL_SI *p = PL_curstackinfo->si_prev; |
536 | |
512 | |
537 | { |
513 | { /*D*//*remove*/ |
538 | dSP; |
514 | dSP; |
539 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
515 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
540 | PUTBACK; /* possibly superfluous */ |
516 | PUTBACK; /* possibly superfluous */ |
541 | } |
517 | } |
542 | |
518 | |
543 | if (!IN_DESTRUCT) |
519 | if (!IN_DESTRUCT) |
544 | { |
520 | { |
545 | dounwind(-1); |
521 | dounwind (-1);/*D*//*remove*/ |
546 | SvREFCNT_dec(PL_curstackinfo->si_stack); |
522 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
547 | } |
523 | } |
548 | |
524 | |
549 | Safefree(PL_curstackinfo->si_cxstack); |
525 | Safefree (PL_curstackinfo->si_cxstack); |
550 | Safefree(PL_curstackinfo); |
526 | Safefree (PL_curstackinfo); |
551 | PL_curstackinfo = p; |
527 | PL_curstackinfo = p; |
552 | } |
528 | } |
553 | |
529 | |
554 | Safefree(PL_tmps_stack); |
530 | Safefree (PL_tmps_stack); |
555 | Safefree(PL_markstack); |
531 | Safefree (PL_markstack); |
556 | Safefree(PL_scopestack); |
532 | Safefree (PL_scopestack); |
557 | Safefree(PL_savestack); |
533 | Safefree (PL_savestack); |
|
|
534 | #if PERL_VERSION < 9 |
558 | Safefree(PL_retstack); |
535 | Safefree (PL_retstack); |
|
|
536 | #endif |
559 | } |
537 | } |
560 | |
538 | |
561 | static void |
539 | static void |
562 | allocate_stack (Coro__State ctx, int alloc) |
540 | allocate_stack (Coro__State ctx, int alloc) |
563 | { |
541 | { |
… | |
… | |
566 | New (0, stack, 1, coro_stack); |
544 | New (0, stack, 1, coro_stack); |
567 | |
545 | |
568 | stack->refcnt = 1; |
546 | stack->refcnt = 1; |
569 | stack->usecnt = 1; |
547 | stack->usecnt = 1; |
570 | stack->gencnt = ctx->gencnt = 0; |
548 | stack->gencnt = ctx->gencnt = 0; |
|
|
549 | |
571 | if (alloc) |
550 | if (alloc) |
572 | { |
551 | { |
573 | #if HAVE_MMAP |
552 | #if HAVE_MMAP |
574 | stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */ |
553 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */ |
575 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
554 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
576 | if (stack->sptr == (void *)-1) |
555 | if (stack->sptr != (void *)-1) |
577 | #endif |
|
|
578 | { |
556 | { |
579 | /*FIXME*//*D*//* reasonable stack size! */ |
557 | # if STACKGUARD |
|
|
558 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
559 | # endif |
|
|
560 | } |
|
|
561 | else |
|
|
562 | #endif |
|
|
563 | { |
580 | stack->ssize = - (16384 * sizeof (long)); |
564 | stack->ssize = - (STACKSIZE * (long)sizeof (long)); |
581 | New (0, stack->sptr, 16384, long); |
565 | New (0, stack->sptr, STACKSIZE, long); |
582 | } |
566 | } |
583 | } |
567 | } |
584 | else |
568 | else |
585 | stack->sptr = 0; |
569 | stack->sptr = 0; |
586 | |
570 | |
… | |
… | |
616 | setup_coro (void *arg) |
600 | setup_coro (void *arg) |
617 | { |
601 | { |
618 | /* |
602 | /* |
619 | * emulate part of the perl startup here. |
603 | * emulate part of the perl startup here. |
620 | */ |
604 | */ |
|
|
605 | dTHX; |
621 | dSP; |
606 | dSP; |
622 | Coro__State ctx = (Coro__State)arg; |
607 | Coro__State ctx = (Coro__State)arg; |
623 | SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); |
608 | SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); |
624 | |
609 | |
625 | coro_init_stacks (aTHX); |
610 | coro_init_stacks (aTHX); |
… | |
… | |
645 | } |
630 | } |
646 | else |
631 | else |
647 | { |
632 | { |
648 | UNOP myop; |
633 | UNOP myop; |
649 | |
634 | |
650 | PL_op = (OP *)&myop; |
|
|
651 | |
|
|
652 | Zero(&myop, 1, UNOP); |
635 | Zero(&myop, 1, UNOP); |
653 | myop.op_next = Nullop; |
636 | myop.op_next = Nullop; |
654 | myop.op_flags = OPf_WANT_VOID; |
637 | myop.op_flags = OPf_WANT_VOID; |
|
|
638 | |
|
|
639 | PL_op = (OP *)&myop; |
655 | |
640 | |
656 | PUSHMARK(SP); |
641 | PUSHMARK(SP); |
657 | XPUSHs (sub_init); |
642 | XPUSHs (sub_init); |
658 | /* |
643 | /* |
659 | * the next line is slightly wrong, as PL_op->op_next |
644 | * the next line is slightly wrong, as PL_op->op_next |
… | |
… | |
674 | continue_coro (void *arg) |
659 | continue_coro (void *arg) |
675 | { |
660 | { |
676 | /* |
661 | /* |
677 | * this is a _very_ stripped down perl interpreter ;) |
662 | * this is a _very_ stripped down perl interpreter ;) |
678 | */ |
663 | */ |
|
|
664 | dTHX; |
679 | Coro__State ctx = (Coro__State)arg; |
665 | Coro__State ctx = (Coro__State)arg; |
680 | JMPENV coro_start_env; |
|
|
681 | |
666 | |
682 | PL_top_env = &ctx->start_env; |
667 | PL_top_env = &PL_start_env; |
683 | |
668 | |
684 | ctx->cursp = 0; |
669 | ctx->cursp = 0; |
685 | PL_op = PL_op->op_next; |
670 | PL_op = PL_op->op_next; |
686 | CALLRUNOPS(aTHX); |
671 | CALLRUNOPS(aTHX); |
687 | |
672 | |
688 | abort (); |
673 | abort (); |
689 | } |
674 | } |
690 | |
675 | |
691 | STATIC void |
676 | /* never call directly, always through the coro_state_transfer global variable */ |
|
|
677 | static void |
692 | transfer(pTHX_ struct coro *prev, struct coro *next, int flags) |
678 | transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
693 | { |
679 | { |
694 | dSTACKLEVEL; |
680 | dSTACKLEVEL; |
695 | static struct coro *xnext; |
|
|
696 | |
681 | |
697 | if (prev != next) |
682 | if (prev != next) |
698 | { |
683 | { |
699 | xnext = next; |
684 | /* has this coro been created yet? */ |
700 | |
|
|
701 | if (next->mainstack) |
685 | if (next->mainstack) |
702 | { |
686 | { |
|
|
687 | LOCK; |
703 | SAVE (prev, flags); |
688 | SAVE (prev, flags); |
704 | LOAD (next); |
689 | LOAD (next); |
|
|
690 | UNLOCK; |
705 | |
691 | |
706 | /* mark this state as in-use */ |
692 | /* mark this state as in-use */ |
707 | next->mainstack = 0; |
693 | next->mainstack = 0; |
708 | next->tmps_ix = -2; |
694 | next->tmps_ix = -2; |
709 | |
695 | |
… | |
… | |
728 | continue_coro, (void *)next, |
714 | continue_coro, (void *)next, |
729 | next->stack->sptr, labs (next->stack->ssize)); |
715 | next->stack->sptr, labs (next->stack->ssize)); |
730 | } |
716 | } |
731 | |
717 | |
732 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
718 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
719 | prev->cursp = stacklevel; |
733 | /* don't add any code here */ |
720 | /* don't add any code here */ |
734 | } |
721 | } |
735 | |
722 | else |
|
|
723 | next->cursp = stacklevel; |
736 | } |
724 | } |
737 | else if (next->tmps_ix == -2) |
725 | else if (next->tmps_ix == -2) |
738 | croak ("tried to transfer to running coroutine"); |
726 | croak ("tried to transfer to running coroutine"); |
739 | else |
727 | else |
740 | { |
728 | { |
|
|
729 | LOCK; |
741 | SAVE (prev, -1); /* first get rid of the old state */ |
730 | SAVE (prev, -1); /* first get rid of the old state */ |
|
|
731 | UNLOCK; |
742 | |
732 | |
|
|
733 | /* create the coroutine for the first time */ |
743 | if (flags & TRANSFER_SAVE_CCTXT) |
734 | if (flags & TRANSFER_SAVE_CCTXT) |
744 | { |
735 | { |
745 | if (!prev->stack) |
736 | if (!prev->stack) |
746 | allocate_stack (prev, 0); |
737 | allocate_stack (prev, 0); |
747 | |
738 | |
|
|
739 | /* the new coroutine starts with start_env again */ |
|
|
740 | PL_top_env = &PL_start_env; |
|
|
741 | |
748 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
742 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
749 | { |
743 | { |
750 | PL_top_env = &next->start_env; |
|
|
751 | |
|
|
752 | setup_coro (next); |
744 | setup_coro (next); |
|
|
745 | next->cursp = stacklevel; |
753 | |
746 | |
754 | prev->stack->refcnt++; |
747 | prev->stack->refcnt++; |
755 | prev->stack->usecnt++; |
748 | prev->stack->usecnt++; |
756 | next->stack = prev->stack; |
749 | next->stack = prev->stack; |
757 | next->gencnt = prev->gencnt; |
750 | next->gencnt = prev->gencnt; |
… | |
… | |
762 | allocate_stack (next, 1); |
755 | allocate_stack (next, 1); |
763 | coro_create (&(next->stack->cctx), |
756 | coro_create (&(next->stack->cctx), |
764 | setup_coro, (void *)next, |
757 | setup_coro, (void *)next, |
765 | next->stack->sptr, labs (next->stack->ssize)); |
758 | next->stack->sptr, labs (next->stack->ssize)); |
766 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
759 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
760 | prev->cursp = stacklevel; |
767 | /* don't add any code here */ |
761 | /* don't add any code here */ |
768 | } |
762 | } |
769 | } |
763 | } |
770 | else |
764 | else |
|
|
765 | { |
771 | setup_coro (next); |
766 | setup_coro (next); |
|
|
767 | next->cursp = stacklevel; |
|
|
768 | } |
772 | } |
769 | } |
773 | |
|
|
774 | /* |
|
|
775 | * xnext is now either prev or next, depending on wether |
|
|
776 | * we switched the c stack or not. that's why I use a global |
|
|
777 | * variable, that should become thread-specific at one point. |
|
|
778 | */ |
|
|
779 | xnext->cursp = stacklevel; |
|
|
780 | } |
770 | } |
781 | |
771 | |
|
|
772 | LOCK; |
782 | if (coro_mortal) |
773 | if (coro_mortal) |
783 | { |
774 | { |
784 | SvREFCNT_dec (coro_mortal); |
775 | SvREFCNT_dec (coro_mortal); |
785 | coro_mortal = 0; |
776 | coro_mortal = 0; |
786 | } |
777 | } |
|
|
778 | UNLOCK; |
787 | } |
779 | } |
|
|
780 | |
|
|
781 | /* use this function pointer to call the above function */ |
|
|
782 | /* this is done to increase chances of the compiler not inlining the call */ |
|
|
783 | void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; |
788 | |
784 | |
789 | #define SV_CORO(sv,func) \ |
785 | #define SV_CORO(sv,func) \ |
790 | do { \ |
786 | do { \ |
791 | if (SvROK (sv)) \ |
787 | if (SvROK (sv)) \ |
792 | sv = SvRV (sv); \ |
788 | sv = SvRV (sv); \ |
793 | \ |
789 | \ |
794 | if (SvTYPE(sv) == SVt_PVHV) \ |
790 | if (SvTYPE (sv) == SVt_PVHV && SvSTASH (sv) != coro_state_stash) \ |
795 | { \ |
791 | { \ |
796 | HE *he = hv_fetch_ent((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ |
792 | HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ |
797 | \ |
793 | \ |
798 | if (!he) \ |
794 | if (!he) \ |
799 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ |
795 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ |
800 | \ |
796 | \ |
801 | (sv) = SvRV (HeVAL(he)); \ |
797 | (sv) = SvRV (HeVAL(he)); \ |
802 | } \ |
798 | } \ |
803 | \ |
799 | \ |
804 | /* must also be changed inside Coro::Cont::yield */ \ |
800 | /* must also be changed inside Coro::Cont::yield */ \ |
805 | if (!SvOBJECT(sv) || SvSTASH(sv) != coro_state_stash) \ |
801 | if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \ |
806 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
802 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
807 | \ |
803 | \ |
808 | } while(0) |
804 | } while(0) |
809 | |
805 | |
810 | #define SvSTATE(sv) (struct coro *)SvIV (sv) |
806 | static void |
|
|
807 | coro_state_destroy (struct coro *coro) |
|
|
808 | { |
|
|
809 | if (coro->refcnt--) |
|
|
810 | return; |
811 | |
811 | |
|
|
812 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
813 | { |
|
|
814 | struct coro temp; |
|
|
815 | |
|
|
816 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
|
|
817 | LOAD (aTHX_ coro); |
|
|
818 | |
|
|
819 | destroy_stacks (aTHX); |
|
|
820 | |
|
|
821 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
|
|
822 | |
|
|
823 | coro->mainstack = 0; |
|
|
824 | } |
|
|
825 | |
|
|
826 | deallocate_stack (coro); |
|
|
827 | SvREFCNT_dec (coro->args); |
|
|
828 | Safefree (coro); |
|
|
829 | } |
|
|
830 | |
812 | static void |
831 | static int |
|
|
832 | coro_state_clear (SV *sv, MAGIC *mg) |
|
|
833 | { |
|
|
834 | struct coro *coro = (struct coro *)mg->mg_ptr; |
|
|
835 | mg->mg_ptr = 0; |
|
|
836 | |
|
|
837 | coro_state_destroy (coro); |
|
|
838 | |
|
|
839 | return 0; |
|
|
840 | } |
|
|
841 | |
|
|
842 | static int |
|
|
843 | coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) |
|
|
844 | { |
|
|
845 | struct coro *coro = (struct coro *)mg->mg_ptr; |
|
|
846 | |
|
|
847 | ++coro->refcnt; |
|
|
848 | |
|
|
849 | return 0; |
|
|
850 | } |
|
|
851 | |
|
|
852 | static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; |
|
|
853 | |
|
|
854 | static struct coro * |
|
|
855 | SvSTATE (SV *coro) |
|
|
856 | { |
|
|
857 | MAGIC *mg = SvMAGIC (SvROK (coro) ? SvRV (coro) : coro); |
|
|
858 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
859 | return (struct coro *)mg->mg_ptr; |
|
|
860 | } |
|
|
861 | |
|
|
862 | static void |
813 | api_transfer(pTHX_ SV *prev, SV *next, int flags) |
863 | api_transfer (pTHX_ SV *prev, SV *next, int flags) |
814 | { |
864 | { |
815 | SV_CORO (prev, "Coro::transfer"); |
865 | SV_CORO (prev, "Coro::transfer"); |
816 | SV_CORO (next, "Coro::transfer"); |
866 | SV_CORO (next, "Coro::transfer"); |
817 | |
867 | |
818 | transfer(aTHX_ SvSTATE(prev), SvSTATE(next), flags); |
868 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
819 | } |
869 | } |
820 | |
870 | |
821 | /** Coro ********************************************************************/ |
871 | /** Coro ********************************************************************/ |
822 | |
872 | |
823 | #define PRIO_MAX 3 |
873 | #define PRIO_MAX 3 |
… | |
… | |
827 | #define PRIO_IDLE -3 |
877 | #define PRIO_IDLE -3 |
828 | #define PRIO_MIN -4 |
878 | #define PRIO_MIN -4 |
829 | |
879 | |
830 | /* for Coro.pm */ |
880 | /* for Coro.pm */ |
831 | static GV *coro_current, *coro_idle; |
881 | static GV *coro_current, *coro_idle; |
832 | static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; |
882 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
833 | static int coro_nready; |
883 | static int coro_nready; |
834 | |
884 | |
835 | static void |
885 | static void |
836 | coro_enq (SV *sv) |
886 | coro_enq (pTHX_ SV *sv) |
837 | { |
887 | { |
|
|
888 | int prio; |
|
|
889 | |
838 | if (SvTYPE (sv) == SVt_PVHV) |
890 | if (SvTYPE (sv) != SVt_PVHV) |
839 | { |
|
|
840 | SV **xprio = hv_fetch ((HV *)sv, "prio", 4, 0); |
|
|
841 | int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; |
|
|
842 | |
|
|
843 | prio = prio > PRIO_MAX ? PRIO_MAX |
|
|
844 | : prio < PRIO_MIN ? PRIO_MIN |
|
|
845 | : prio; |
|
|
846 | |
|
|
847 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
848 | coro_nready++; |
|
|
849 | |
|
|
850 | return; |
|
|
851 | } |
|
|
852 | |
|
|
853 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
891 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
892 | |
|
|
893 | { |
|
|
894 | SV *coro = sv; |
|
|
895 | SV_CORO (coro, "omg"); |
|
|
896 | prio = SvSTATE (coro)->prio; |
|
|
897 | } |
|
|
898 | |
|
|
899 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
900 | coro_nready++; |
854 | } |
901 | } |
855 | |
902 | |
856 | static SV * |
903 | static SV * |
857 | coro_deq (int min_prio) |
904 | coro_deq (pTHX_ int min_prio) |
858 | { |
905 | { |
859 | int prio = PRIO_MAX - PRIO_MIN; |
906 | int prio = PRIO_MAX - PRIO_MIN; |
860 | |
907 | |
861 | min_prio -= PRIO_MIN; |
908 | min_prio -= PRIO_MIN; |
862 | if (min_prio < 0) |
909 | if (min_prio < 0) |
863 | min_prio = 0; |
910 | min_prio = 0; |
864 | |
911 | |
865 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
912 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
866 | if (av_len (coro_ready[prio]) >= 0) |
913 | if (AvFILLp (coro_ready [prio]) >= 0) |
867 | { |
914 | { |
868 | coro_nready--; |
915 | coro_nready--; |
869 | return av_shift (coro_ready[prio]); |
916 | return av_shift (coro_ready [prio]); |
870 | } |
917 | } |
871 | |
918 | |
872 | return 0; |
919 | return 0; |
873 | } |
920 | } |
874 | |
921 | |
875 | static void |
922 | static void |
876 | api_ready (SV *coro) |
923 | api_ready (SV *coro) |
877 | { |
924 | { |
|
|
925 | dTHX; |
|
|
926 | |
878 | if (SvROK (coro)) |
927 | if (SvROK (coro)) |
879 | coro = SvRV (coro); |
928 | coro = SvRV (coro); |
880 | |
929 | |
|
|
930 | LOCK; |
881 | coro_enq (SvREFCNT_inc (coro)); |
931 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
|
|
932 | UNLOCK; |
882 | } |
933 | } |
883 | |
934 | |
884 | static void |
935 | static void |
885 | api_schedule (void) |
936 | api_schedule (void) |
886 | { |
937 | { |
|
|
938 | dTHX; |
|
|
939 | |
887 | SV *prev, *next; |
940 | SV *prev, *next; |
888 | |
941 | |
|
|
942 | LOCK; |
|
|
943 | |
889 | prev = SvRV (GvSV (coro_current)); |
944 | prev = SvRV (GvSV (coro_current)); |
890 | next = coro_deq (PRIO_MIN); |
945 | next = coro_deq (aTHX_ PRIO_MIN); |
891 | |
946 | |
892 | if (!next) |
947 | if (!next) |
893 | next = SvREFCNT_inc (SvRV (GvSV (coro_idle))); |
948 | next = SvREFCNT_inc (SvRV (GvSV (coro_idle))); |
894 | |
949 | |
895 | /* free this only after the transfer */ |
950 | /* free this only after the transfer */ |
… | |
… | |
898 | |
953 | |
899 | SvRV (GvSV (coro_current)) = next; |
954 | SvRV (GvSV (coro_current)) = next; |
900 | |
955 | |
901 | SV_CORO (next, "Coro::schedule"); |
956 | SV_CORO (next, "Coro::schedule"); |
902 | |
957 | |
|
|
958 | UNLOCK; |
|
|
959 | |
903 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), |
960 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), |
904 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
961 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
905 | } |
962 | } |
906 | |
963 | |
907 | static void |
964 | static void |
908 | api_cede (void) |
965 | api_cede (void) |
909 | { |
966 | { |
|
|
967 | dTHX; |
|
|
968 | |
|
|
969 | LOCK; |
910 | coro_enq (SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
970 | coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
971 | UNLOCK; |
911 | |
972 | |
912 | api_schedule (); |
973 | api_schedule (); |
913 | } |
974 | } |
914 | |
975 | |
915 | MODULE = Coro::State PACKAGE = Coro::State |
976 | MODULE = Coro::State PACKAGE = Coro::State |
916 | |
977 | |
917 | PROTOTYPES: ENABLE |
978 | PROTOTYPES: DISABLE |
918 | |
979 | |
919 | BOOT: |
980 | BOOT: |
920 | { /* {} necessary for stoopid perl-5.6.x */ |
981 | { /* {} necessary for stoopid perl-5.6.x */ |
|
|
982 | #ifdef USE_ITHREADS |
|
|
983 | MUTEX_INIT (&coro_mutex); |
|
|
984 | #endif |
|
|
985 | BOOT_PAGESIZE; |
|
|
986 | |
921 | ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); |
987 | ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); |
922 | PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); |
988 | PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); |
923 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
989 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
924 | |
990 | |
925 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
991 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
926 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
992 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
927 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
993 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
928 | newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); |
994 | newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); |
929 | |
995 | |
930 | if (!padlist_cache) |
|
|
931 | padlist_cache = newHV (); |
|
|
932 | |
|
|
933 | main_mainstack = PL_mainstack; |
996 | main_mainstack = PL_mainstack; |
934 | |
997 | |
935 | coroapi.ver = CORO_API_VERSION; |
998 | coroapi.ver = CORO_API_VERSION; |
936 | coroapi.transfer = api_transfer; |
999 | coroapi.transfer = api_transfer; |
937 | } |
|
|
938 | |
1000 | |
939 | Coro::State |
1001 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
940 | _newprocess(args) |
1002 | } |
941 | SV * args |
1003 | |
942 | PROTOTYPE: $ |
1004 | SV * |
|
|
1005 | new (char *klass, ...) |
943 | CODE: |
1006 | CODE: |
944 | Coro__State coro; |
1007 | { |
|
|
1008 | struct coro *coro; |
|
|
1009 | HV *hv; |
|
|
1010 | int i; |
945 | |
1011 | |
946 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
|
|
947 | croak ("Coro::State::_newprocess expects an arrayref"); |
|
|
948 | |
|
|
949 | Newz (0, coro, 1, struct coro); |
1012 | Newz (0, coro, 1, struct coro); |
|
|
1013 | coro->args = newAV (); |
950 | |
1014 | |
951 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
1015 | for (i = 1; i < items; i++) |
|
|
1016 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1017 | |
952 | coro->mainstack = 0; /* actual work is done inside transfer */ |
1018 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
953 | coro->stack = 0; |
1019 | /*coro->stack = 0;*/ |
954 | |
1020 | |
955 | /* same as JMPENV_BOOTSTRAP */ |
1021 | hv = newHV (); |
956 | /* we might be able to recycle start_env, but safe is safe */ |
1022 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
957 | //Zero(&coro->start_env, 1, JMPENV); |
1023 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
958 | coro->start_env.je_ret = -1; |
1024 | } |
959 | coro->start_env.je_mustcatch = TRUE; |
|
|
960 | |
|
|
961 | RETVAL = coro; |
|
|
962 | OUTPUT: |
1025 | OUTPUT: |
963 | RETVAL |
1026 | RETVAL |
964 | |
1027 | |
965 | void |
1028 | void |
966 | transfer(prev, next, flags) |
1029 | transfer(prev, next, flags) |
967 | SV *prev |
1030 | SV *prev |
968 | SV *next |
1031 | SV *next |
969 | int flags |
1032 | int flags |
970 | PROTOTYPE: @ |
|
|
971 | CODE: |
1033 | CODE: |
972 | PUTBACK; |
1034 | PUTBACK; |
973 | SV_CORO (next, "Coro::transfer"); |
1035 | SV_CORO (next, "Coro::transfer"); |
974 | SV_CORO (prev, "Coro::transfer"); |
1036 | SV_CORO (prev, "Coro::transfer"); |
975 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
1037 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
976 | SPAGAIN; |
1038 | SPAGAIN; |
977 | |
1039 | |
|
|
1040 | int |
|
|
1041 | prio (Coro::State coro, int newprio = 0) |
|
|
1042 | ALIAS: |
|
|
1043 | nice = 1 |
|
|
1044 | CODE: |
|
|
1045 | { |
|
|
1046 | RETVAL = coro->prio; |
|
|
1047 | |
|
|
1048 | if (items > 1) |
|
|
1049 | { |
|
|
1050 | if (ix) |
|
|
1051 | newprio += coro->prio; |
|
|
1052 | |
|
|
1053 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
|
|
1054 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
|
|
1055 | |
|
|
1056 | coro->prio = newprio; |
|
|
1057 | } |
|
|
1058 | } |
|
|
1059 | |
978 | void |
1060 | void |
979 | DESTROY(coro) |
1061 | _clone_state_from (SV *dst, SV *src) |
980 | Coro::State coro |
1062 | CODE: |
981 | CODE: |
1063 | { |
|
|
1064 | struct coro *coro_src = SvSTATE (src); |
982 | |
1065 | |
983 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1066 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
984 | { |
|
|
985 | struct coro temp; |
|
|
986 | |
1067 | |
987 | PUTBACK; |
1068 | ++coro_src->refcnt; |
988 | SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); |
1069 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
989 | LOAD(aTHX_ coro); |
1070 | } |
990 | SPAGAIN; |
|
|
991 | |
|
|
992 | destroy_stacks (aTHX); |
|
|
993 | |
|
|
994 | LOAD((&temp)); /* this will get rid of defsv etc.. */ |
|
|
995 | SPAGAIN; |
|
|
996 | |
|
|
997 | coro->mainstack = 0; |
|
|
998 | } |
|
|
999 | |
|
|
1000 | deallocate_stack (coro); |
|
|
1001 | SvREFCNT_dec (coro->args); |
|
|
1002 | Safefree (coro); |
|
|
1003 | |
1071 | |
1004 | void |
1072 | void |
1005 | _exit(code) |
1073 | _exit (code) |
1006 | int code |
1074 | int code |
1007 | PROTOTYPE: $ |
1075 | PROTOTYPE: $ |
1008 | CODE: |
1076 | CODE: |
1009 | _exit (code); |
1077 | _exit (code); |
1010 | |
1078 | |
1011 | MODULE = Coro::State PACKAGE = Coro::Cont |
1079 | MODULE = Coro::State PACKAGE = Coro::Cont |
1012 | |
1080 | |
1013 | # this is slightly dirty (should expose a c-level api) |
|
|
1014 | |
|
|
1015 | void |
1081 | void |
1016 | yield(...) |
1082 | yield (...) |
1017 | PROTOTYPE: @ |
1083 | PROTOTYPE: @ |
1018 | CODE: |
1084 | CODE: |
1019 | static SV *returnstk; |
1085 | SV *yieldstack; |
1020 | SV *sv; |
1086 | SV *sv; |
1021 | AV *defav = GvAV (PL_defgv); |
1087 | AV *defav = GvAV (PL_defgv); |
1022 | struct coro *prev, *next; |
1088 | struct coro *prev, *next; |
1023 | |
1089 | |
1024 | if (!returnstk) |
1090 | yieldstack = *hv_fetch ( |
1025 | returnstk = SvRV ((SV *)get_sv ("Coro::Cont::return", FALSE)); |
1091 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1092 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1093 | 0 |
|
|
1094 | ); |
1026 | |
1095 | |
1027 | /* set up @_ -- ugly */ |
1096 | /* set up @_ -- ugly */ |
1028 | av_clear (defav); |
1097 | av_clear (defav); |
1029 | av_fill (defav, items - 1); |
1098 | av_fill (defav, items - 1); |
1030 | while (items--) |
1099 | while (items--) |
1031 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
1100 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
1032 | |
1101 | |
1033 | mg_get (returnstk); /* isn't documentation wrong for mg_get? */ |
|
|
1034 | sv = av_pop ((AV *)SvRV (returnstk)); |
1102 | sv = av_pop ((AV *)SvRV (yieldstack)); |
1035 | prev = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); |
1103 | prev = SvSTATE ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); |
1036 | next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); |
1104 | next = SvSTATE ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); |
1037 | SvREFCNT_dec (sv); |
1105 | SvREFCNT_dec (sv); |
1038 | |
1106 | |
1039 | transfer(aTHX_ prev, next, 0); |
1107 | coro_state_transfer (aTHX_ prev, next, 0); |
1040 | |
1108 | |
1041 | MODULE = Coro::State PACKAGE = Coro |
1109 | MODULE = Coro::State PACKAGE = Coro |
1042 | |
|
|
1043 | # this is slightly dirty (should expose a c-level api) |
|
|
1044 | |
1110 | |
1045 | BOOT: |
1111 | BOOT: |
1046 | { |
1112 | { |
1047 | int i; |
1113 | int i; |
1048 | HV *stash = gv_stashpv ("Coro", TRUE); |
1114 | HV *stash = gv_stashpv ("Coro", TRUE); |
… | |
… | |
1068 | coroapi.ready = api_ready; |
1134 | coroapi.ready = api_ready; |
1069 | coroapi.nready = &coro_nready; |
1135 | coroapi.nready = &coro_nready; |
1070 | coroapi.current = coro_current; |
1136 | coroapi.current = coro_current; |
1071 | |
1137 | |
1072 | GCoroAPI = &coroapi; |
1138 | GCoroAPI = &coroapi; |
1073 | sv_setiv(sv, (IV)&coroapi); |
1139 | sv_setiv (sv, (IV)&coroapi); |
1074 | SvREADONLY_on(sv); |
1140 | SvREADONLY_on (sv); |
1075 | } |
1141 | } |
1076 | } |
1142 | } |
1077 | |
1143 | |
1078 | #if !PERL_MICRO |
1144 | #if !PERL_MICRO |
1079 | |
1145 | |
1080 | void |
1146 | void |
1081 | ready(self) |
1147 | ready (self) |
1082 | SV * self |
1148 | SV * self |
1083 | PROTOTYPE: $ |
1149 | PROTOTYPE: $ |
1084 | CODE: |
1150 | CODE: |
1085 | api_ready (self); |
1151 | api_ready (self); |
1086 | |
1152 | |
1087 | #endif |
1153 | #endif |
1088 | |
1154 | |
1089 | int |
1155 | int |
1090 | nready(...) |
1156 | nready (...) |
1091 | PROTOTYPE: |
1157 | PROTOTYPE: |
1092 | CODE: |
1158 | CODE: |
1093 | RETVAL = coro_nready; |
1159 | RETVAL = coro_nready; |
1094 | OUTPUT: |
1160 | OUTPUT: |
1095 | RETVAL |
1161 | RETVAL |
1096 | |
1162 | |
1097 | void |
1163 | void |
1098 | schedule(...) |
1164 | schedule (...) |
1099 | PROTOTYPE: |
1165 | PROTOTYPE: |
1100 | CODE: |
1166 | CODE: |
1101 | api_schedule (); |
1167 | api_schedule (); |
1102 | |
1168 | |
1103 | void |
1169 | void |
1104 | cede(...) |
1170 | cede (...) |
1105 | PROTOTYPE: |
1171 | PROTOTYPE: |
1106 | CODE: |
1172 | CODE: |
1107 | api_cede (); |
1173 | api_cede (); |
1108 | |
1174 | |
|
|
1175 | # and these are hacks |
|
|
1176 | SV * |
|
|
1177 | _aio_get_state () |
|
|
1178 | CODE: |
|
|
1179 | { |
|
|
1180 | struct { |
|
|
1181 | int errorno; |
|
|
1182 | int laststype; |
|
|
1183 | int laststatval; |
|
|
1184 | Stat_t statcache; |
|
|
1185 | } data; |
|
|
1186 | |
|
|
1187 | data.errorno = errno; |
|
|
1188 | data.laststype = PL_laststype; |
|
|
1189 | data.laststatval = PL_laststatval; |
|
|
1190 | data.statcache = PL_statcache; |
|
|
1191 | |
|
|
1192 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1193 | } |
|
|
1194 | OUTPUT: |
|
|
1195 | RETVAL |
|
|
1196 | |
|
|
1197 | void |
|
|
1198 | _aio_set_state (char *data_) |
|
|
1199 | PROTOTYPE: $ |
|
|
1200 | CODE: |
|
|
1201 | { |
|
|
1202 | struct { |
|
|
1203 | int errorno; |
|
|
1204 | int laststype; |
|
|
1205 | int laststatval; |
|
|
1206 | Stat_t statcache; |
|
|
1207 | } *data = (void *)data_; |
|
|
1208 | |
|
|
1209 | errno = data->errorno; |
|
|
1210 | PL_laststype = data->laststype; |
|
|
1211 | PL_laststatval = data->laststatval; |
|
|
1212 | PL_statcache = data->statcache; |
|
|
1213 | } |