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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 "libcoro/coro.c" |
9 | #include "patchlevel.h" |
6 | |
10 | |
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11 | #if PERL_VERSION < 6 |
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12 | # ifndef PL_ppaddr |
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13 | # define PL_ppaddr ppaddr |
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14 | # endif |
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15 | # ifndef call_sv |
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16 | # define call_sv perl_call_sv |
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17 | # endif |
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18 | # ifndef get_sv |
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19 | # define get_sv perl_get_sv |
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20 | # endif |
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21 | # ifndef get_cv |
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22 | # define get_cv perl_get_cv |
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23 | # endif |
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24 | # ifndef IS_PADGV |
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25 | # define IS_PADGV(v) 0 |
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26 | # endif |
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27 | # ifndef IS_PADCONST |
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28 | # define IS_PADCONST(v) 0 |
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29 | # endif |
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30 | #endif |
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31 | |
7 | #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 |
8 | |
41 | |
9 | #ifdef HAVE_MMAP |
42 | #ifdef HAVE_MMAP |
10 | # include <unistd.h> |
43 | # include <unistd.h> |
11 | # include <sys/mman.h> |
44 | # include <sys/mman.h> |
12 | # ifndef MAP_ANON |
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13 | # ifdef MAP_ANONYMOUS |
45 | # ifndef MAP_ANONYMOUS |
14 | # define MAP_ANON MAP_ANONYMOUS |
46 | # ifdef MAP_ANON |
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47 | # define MAP_ANONYMOUS MAP_ANON |
15 | # else |
48 | # else |
16 | # undef HAVE_MMAP |
49 | # undef HAVE_MMAP |
17 | # endif |
50 | # endif |
18 | # 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 |
19 | #endif |
59 | # endif |
20 | |
60 | #endif |
21 | #define MAY_FLUSH /* increases codesize and is rarely used */ |
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22 | |
61 | |
23 | #define SUB_INIT "Coro::State::initialize" |
62 | #define SUB_INIT "Coro::State::initialize" |
24 | #define UCORO_STATE "_coro_state" |
63 | #define UCORO_STATE "_coro_state" |
25 | |
64 | |
26 | /* The next macro should declare a variable stacklevel that contains and approximation |
65 | /* The next macro should declare a variable stacklevel that contains and approximation |
27 | * to the current C stack pointer. Its property is that it changes with each call |
66 | * to the current C stack pointer. Its property is that it changes with each call |
28 | * and should be unique. */ |
67 | * and should be unique. */ |
29 | #define dSTACKLEVEL void *stacklevel = &stacklevel |
68 | #define dSTACKLEVEL void *stacklevel = &stacklevel |
30 | |
69 | |
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70 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
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71 | |
31 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
72 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
32 | |
73 | |
33 | #include "CoroAPI.h" |
74 | #include "CoroAPI.h" |
34 | |
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 | |
35 | 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 */ |
36 | |
91 | |
37 | /* 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... */ |
38 | typedef struct { |
93 | typedef struct { |
39 | int refcnt; /* pointer reference counter */ |
94 | int refcnt; /* pointer reference counter */ |
40 | int usecnt; /* shared by how many coroutines */ |
95 | int usecnt; /* shared by how many coroutines */ |
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66 | AV *curstack; |
121 | AV *curstack; |
67 | AV *mainstack; |
122 | AV *mainstack; |
68 | SV **stack_sp; |
123 | SV **stack_sp; |
69 | OP *op; |
124 | OP *op; |
70 | SV **curpad; |
125 | SV **curpad; |
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126 | AV *comppad; |
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127 | CV *compcv; |
71 | SV **stack_base; |
128 | SV **stack_base; |
72 | SV **stack_max; |
129 | SV **stack_max; |
73 | SV **tmps_stack; |
130 | SV **tmps_stack; |
74 | I32 tmps_floor; |
131 | I32 tmps_floor; |
75 | I32 tmps_ix; |
132 | I32 tmps_ix; |
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84 | I32 savestack_ix; |
141 | I32 savestack_ix; |
85 | I32 savestack_max; |
142 | I32 savestack_max; |
86 | OP **retstack; |
143 | OP **retstack; |
87 | I32 retstack_ix; |
144 | I32 retstack_ix; |
88 | I32 retstack_max; |
145 | I32 retstack_max; |
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146 | PMOP *curpm; |
89 | COP *curcop; |
147 | COP *curcop; |
90 | JMPENV *top_env; |
148 | JMPENV *top_env; |
91 | |
149 | |
92 | /* data associated with this coroutine (initial args) */ |
150 | /* data associated with this coroutine (initial args) */ |
93 | AV *args; |
151 | AV *args; |
94 | }; |
152 | }; |
95 | |
153 | |
96 | typedef struct coro *Coro__State; |
154 | typedef struct coro *Coro__State; |
97 | typedef struct coro *Coro__State_or_hashref; |
155 | typedef struct coro *Coro__State_or_hashref; |
98 | |
156 | |
99 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
157 | static AV * |
100 | static HV *coro_state_stash; |
158 | coro_clone_padlist (pTHX_ CV *cv) |
101 | static SV *ucoro_state_sv; |
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102 | static U32 ucoro_state_hash; |
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103 | static HV *padlist_cache; |
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104 | |
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105 | /* mostly copied from op.c:cv_clone2 */ |
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106 | STATIC AV * |
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107 | clone_padlist (AV *protopadlist) |
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108 | { |
159 | { |
109 | AV *av; |
160 | AV *padlist = CvPADLIST (cv); |
110 | I32 ix; |
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111 | AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE); |
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112 | AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE); |
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113 | SV **pname = AvARRAY (protopad_name); |
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114 | SV **ppad = AvARRAY (protopad); |
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115 | I32 fname = AvFILLp (protopad_name); |
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116 | I32 fpad = AvFILLp (protopad); |
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117 | AV *newpadlist, *newpad_name, *newpad; |
161 | AV *newpadlist, *newpad; |
118 | SV **npad; |
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119 | |
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120 | newpad_name = newAV (); |
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121 | for (ix = fname; ix >= 0; ix--) |
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122 | av_store (newpad_name, ix, SvREFCNT_inc (pname[ix])); |
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123 | |
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124 | newpad = newAV (); |
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125 | av_fill (newpad, AvFILLp (protopad)); |
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126 | npad = AvARRAY (newpad); |
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127 | |
162 | |
128 | newpadlist = newAV (); |
163 | newpadlist = newAV (); |
129 | AvREAL_off (newpadlist); |
164 | AvREAL_off (newpadlist); |
130 | av_store (newpadlist, 0, (SV *) newpad_name); |
165 | #if PERL_VERSION < 9 |
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166 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
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167 | #else |
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168 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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169 | #endif |
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170 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
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171 | --AvFILLp (padlist); |
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172 | |
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173 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
131 | av_store (newpadlist, 1, (SV *) newpad); |
174 | av_store (newpadlist, 1, (SV *)newpad); |
132 | |
175 | |
133 | av = newAV (); /* will be @_ */ |
176 | return newpadlist; |
134 | av_extend (av, 0); |
177 | } |
135 | av_store (newpad, 0, (SV *) av); |
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136 | AvFLAGS (av) = AVf_REIFY; |
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137 | |
178 | |
138 | for (ix = fpad; ix > 0; ix--) |
179 | static void |
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180 | free_padlist (pTHX_ AV *padlist) |
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181 | { |
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182 | /* may be during global destruction */ |
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183 | if (SvREFCNT (padlist)) |
139 | { |
184 | { |
140 | SV *namesv = (ix <= fname) ? pname[ix] : Nullsv; |
185 | I32 i = AvFILLp (padlist); |
141 | if (namesv && namesv != &PL_sv_undef) |
186 | while (i >= 0) |
142 | { |
187 | { |
143 | char *name = SvPVX (namesv); /* XXX */ |
188 | SV **svp = av_fetch (padlist, i--, FALSE); |
144 | if (SvFLAGS (namesv) & SVf_FAKE || *name == '&') |
189 | if (svp) |
145 | { /* lexical from outside? */ |
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146 | npad[ix] = SvREFCNT_inc (ppad[ix]); |
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147 | } |
190 | { |
148 | else |
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149 | { /* our own lexical */ |
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150 | SV *sv; |
191 | SV *sv; |
151 | if (*name == '&') |
192 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
152 | sv = SvREFCNT_inc (ppad[ix]); |
193 | SvREFCNT_dec (sv); |
153 | else if (*name == '@') |
194 | |
154 | sv = (SV *) newAV (); |
195 | SvREFCNT_dec (*svp); |
155 | else if (*name == '%') |
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156 | sv = (SV *) newHV (); |
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157 | else |
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158 | sv = NEWSV (0, 0); |
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159 | if (!SvPADBUSY (sv)) |
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160 | SvPADMY_on (sv); |
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161 | npad[ix] = sv; |
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162 | } |
196 | } |
163 | } |
197 | } |
164 | else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix])) |
198 | |
165 | { |
199 | SvREFCNT_dec ((SV*)padlist); |
166 | npad[ix] = SvREFCNT_inc (ppad[ix]); |
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167 | } |
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168 | else |
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169 | { |
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170 | SV *sv = NEWSV (0, 0); |
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171 | SvPADTMP_on (sv); |
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172 | npad[ix] = sv; |
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173 | } |
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174 | } |
200 | } |
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201 | } |
175 | |
202 | |
176 | #if 0 /* return -ENOTUNDERSTOOD */ |
203 | static int |
177 | /* Now that vars are all in place, clone nested closures. */ |
204 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
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205 | { |
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206 | AV *padlist; |
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207 | AV *av = (AV *)mg->mg_obj; |
178 | |
208 | |
179 | for (ix = fpad; ix > 0; ix--) { |
209 | /* casting is fun. */ |
180 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; |
210 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
181 | if (namesv |
211 | free_padlist (aTHX_ padlist); |
182 | && namesv != &PL_sv_undef |
212 | |
183 | && !(SvFLAGS(namesv) & SVf_FAKE) |
213 | SvREFCNT_dec (av); |
184 | && *SvPVX(namesv) == '&' |
214 | |
185 | && CvCLONE(ppad[ix])) |
215 | return 0; |
186 | { |
216 | } |
187 | CV *kid = cv_clone((CV*)ppad[ix]); |
217 | |
188 | SvREFCNT_dec(ppad[ix]); |
218 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
189 | CvCLONE_on(kid); |
219 | |
190 | SvPADMY_on(kid); |
220 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
191 | npad[ix] = (SV*)kid; |
221 | |
192 | } |
222 | /* the next two functions merely cache the padlists */ |
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223 | static void |
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224 | get_padlist (pTHX_ CV *cv) |
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225 | { |
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226 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
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227 | |
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228 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
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229 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
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230 | else |
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231 | { |
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232 | #if 0 |
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233 | /* this should work - but it doesn't :( */ |
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234 | CV *cp = Perl_cv_clone (aTHX_ cv); |
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235 | CvPADLIST (cv) = CvPADLIST (cp); |
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236 | CvPADLIST (cp) = 0; |
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237 | SvREFCNT_dec (cp); |
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238 | #else |
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239 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
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240 | #endif |
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241 | } |
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242 | } |
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243 | |
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244 | static void |
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245 | put_padlist (pTHX_ CV *cv) |
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246 | { |
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247 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
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248 | |
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249 | if (!mg) |
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250 | { |
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251 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
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252 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
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253 | mg->mg_virtual = &vtbl_coro; |
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254 | mg->mg_obj = (SV *)newAV (); |
193 | } |
255 | } |
194 | #endif |
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195 | |
256 | |
196 | return newpadlist; |
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197 | } |
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198 | |
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199 | #ifdef MAY_FLUSH |
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200 | STATIC void |
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201 | free_padlist (AV *padlist) |
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202 | { |
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203 | /* may be during global destruction */ |
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204 | if (SvREFCNT(padlist)) |
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205 | { |
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206 | I32 i = AvFILLp(padlist); |
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207 | while (i >= 0) |
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208 | { |
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209 | SV **svp = av_fetch(padlist, i--, FALSE); |
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210 | SV *sv = svp ? *svp : Nullsv; |
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211 | if (sv) |
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212 | SvREFCNT_dec(sv); |
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213 | } |
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214 | |
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215 | SvREFCNT_dec((SV*)padlist); |
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216 | } |
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217 | } |
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218 | #endif |
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219 | |
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220 | /* the next two functions merely cache the padlists */ |
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221 | STATIC void |
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222 | get_padlist (CV *cv) |
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223 | { |
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224 | SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 0); |
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225 | |
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226 | if (he && AvFILLp ((AV *)*he) >= 0) |
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227 | CvPADLIST (cv) = (AV *)av_pop ((AV *)*he); |
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228 | else |
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229 | CvPADLIST (cv) = clone_padlist (CvPADLIST (cv)); |
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230 | } |
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231 | |
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232 | STATIC void |
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233 | put_padlist (CV *cv) |
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234 | { |
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235 | SV **he = hv_fetch (padlist_cache, (void *)&cv, sizeof (CV *), 1); |
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236 | |
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237 | if (SvTYPE (*he) != SVt_PVAV) |
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238 | { |
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239 | SvREFCNT_dec (*he); |
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240 | *he = (SV *)newAV (); |
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241 | } |
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242 | |
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243 | av_push ((AV *)*he, (SV *)CvPADLIST (cv)); |
257 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
244 | } |
258 | } |
245 | |
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246 | #ifdef MAY_FLUSH |
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247 | STATIC void |
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248 | flush_padlist_cache () |
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249 | { |
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250 | HV *hv = padlist_cache; |
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251 | padlist_cache = newHV (); |
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252 | |
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253 | if (hv_iterinit (hv)) |
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254 | { |
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255 | HE *he; |
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256 | AV *padlist; |
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257 | |
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258 | while (!!(he = hv_iternext (hv))) |
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259 | { |
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260 | AV *av = (AV *)HeVAL(he); |
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261 | |
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262 | /* casting is fun. */ |
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263 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
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264 | free_padlist (padlist); |
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265 | } |
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266 | } |
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267 | |
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268 | SvREFCNT_dec (hv); |
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269 | } |
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270 | #endif |
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271 | |
259 | |
272 | #define SB do { |
260 | #define SB do { |
273 | #define SE } while (0) |
261 | #define SE } while (0) |
274 | |
262 | |
275 | #define LOAD(state) load_state(aTHX_ (state)); |
263 | #define LOAD(state) load_state(aTHX_ (state)); |
276 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
264 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
277 | |
265 | |
278 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); SE |
266 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
279 | |
267 | |
280 | static void |
268 | static void |
281 | load_state(pTHX_ Coro__State c) |
269 | load_state(pTHX_ Coro__State c) |
282 | { |
270 | { |
283 | PL_dowarn = c->dowarn; |
271 | PL_dowarn = c->dowarn; |
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… | |
287 | PL_curstack = c->curstack; |
275 | PL_curstack = c->curstack; |
288 | PL_mainstack = c->mainstack; |
276 | PL_mainstack = c->mainstack; |
289 | PL_stack_sp = c->stack_sp; |
277 | PL_stack_sp = c->stack_sp; |
290 | PL_op = c->op; |
278 | PL_op = c->op; |
291 | PL_curpad = c->curpad; |
279 | PL_curpad = c->curpad; |
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280 | PL_comppad = c->comppad; |
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281 | PL_compcv = c->compcv; |
292 | PL_stack_base = c->stack_base; |
282 | PL_stack_base = c->stack_base; |
293 | PL_stack_max = c->stack_max; |
283 | PL_stack_max = c->stack_max; |
294 | PL_tmps_stack = c->tmps_stack; |
284 | PL_tmps_stack = c->tmps_stack; |
295 | PL_tmps_floor = c->tmps_floor; |
285 | PL_tmps_floor = c->tmps_floor; |
296 | PL_tmps_ix = c->tmps_ix; |
286 | PL_tmps_ix = c->tmps_ix; |
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… | |
302 | PL_scopestack_ix = c->scopestack_ix; |
292 | PL_scopestack_ix = c->scopestack_ix; |
303 | PL_scopestack_max = c->scopestack_max; |
293 | PL_scopestack_max = c->scopestack_max; |
304 | PL_savestack = c->savestack; |
294 | PL_savestack = c->savestack; |
305 | PL_savestack_ix = c->savestack_ix; |
295 | PL_savestack_ix = c->savestack_ix; |
306 | PL_savestack_max = c->savestack_max; |
296 | PL_savestack_max = c->savestack_max; |
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297 | #if PERL_VERSION < 9 |
307 | PL_retstack = c->retstack; |
298 | PL_retstack = c->retstack; |
308 | PL_retstack_ix = c->retstack_ix; |
299 | PL_retstack_ix = c->retstack_ix; |
309 | PL_retstack_max = c->retstack_max; |
300 | PL_retstack_max = c->retstack_max; |
|
|
301 | #endif |
|
|
302 | PL_curpm = c->curpm; |
310 | PL_curcop = c->curcop; |
303 | PL_curcop = c->curcop; |
311 | PL_top_env = c->top_env; |
304 | PL_top_env = c->top_env; |
312 | |
305 | |
313 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
306 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
314 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
307 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
… | |
… | |
323 | { |
316 | { |
324 | AV *padlist = (AV *)POPs; |
317 | AV *padlist = (AV *)POPs; |
325 | |
318 | |
326 | if (padlist) |
319 | if (padlist) |
327 | { |
320 | { |
328 | put_padlist (cv); /* mark this padlist as available */ |
321 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
329 | CvPADLIST(cv) = padlist; |
322 | CvPADLIST(cv) = padlist; |
330 | #ifdef USE_THREADS |
|
|
331 | /*CvOWNER(cv) = (struct perl_thread *)POPs;*/ |
|
|
332 | #endif |
|
|
333 | } |
323 | } |
334 | |
324 | |
335 | ++CvDEPTH(cv); |
325 | ++CvDEPTH(cv); |
336 | } |
326 | } |
337 | |
327 | |
… | |
… | |
355 | |
345 | |
356 | PUSHs (Nullsv); |
346 | PUSHs (Nullsv); |
357 | /* this loop was inspired by pp_caller */ |
347 | /* this loop was inspired by pp_caller */ |
358 | for (;;) |
348 | for (;;) |
359 | { |
349 | { |
360 | do |
350 | while (cxix >= 0) |
361 | { |
351 | { |
362 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
352 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
363 | |
353 | |
364 | if (CxTYPE(cx) == CXt_SUB) |
354 | if (CxTYPE(cx) == CXt_SUB) |
365 | { |
355 | { |
366 | CV *cv = cx->blk_sub.cv; |
356 | CV *cv = cx->blk_sub.cv; |
367 | if (CvDEPTH(cv)) |
357 | if (CvDEPTH(cv)) |
368 | { |
358 | { |
369 | #ifdef USE_THREADS |
|
|
370 | /*XPUSHs ((SV *)CvOWNER(cv));*/ |
|
|
371 | /*CvOWNER(cv) = 0;*/ |
|
|
372 | /*error must unlock this cv etc.. etc...*/ |
|
|
373 | #endif |
|
|
374 | EXTEND (SP, CvDEPTH(cv)*2); |
359 | EXTEND (SP, CvDEPTH(cv)*2); |
375 | |
360 | |
376 | while (--CvDEPTH(cv)) |
361 | while (--CvDEPTH(cv)) |
377 | { |
362 | { |
378 | /* this tells the restore code to increment CvDEPTH */ |
363 | /* this tells the restore code to increment CvDEPTH */ |
… | |
… | |
381 | } |
366 | } |
382 | |
367 | |
383 | PUSHs ((SV *)CvPADLIST(cv)); |
368 | PUSHs ((SV *)CvPADLIST(cv)); |
384 | PUSHs ((SV *)cv); |
369 | PUSHs ((SV *)cv); |
385 | |
370 | |
386 | get_padlist (cv); /* this is a monster */ |
371 | get_padlist (aTHX_ cv); |
387 | } |
372 | } |
388 | } |
373 | } |
|
|
374 | #ifdef CXt_FORMAT |
389 | else if (CxTYPE(cx) == CXt_FORMAT) |
375 | else if (CxTYPE(cx) == CXt_FORMAT) |
390 | { |
376 | { |
391 | /* I never used formats, so how should I know how these are implemented? */ |
377 | /* I never used formats, so how should I know how these are implemented? */ |
392 | /* my bold guess is as a simple, plain sub... */ |
378 | /* my bold guess is as a simple, plain sub... */ |
393 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
379 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
394 | } |
380 | } |
|
|
381 | #endif |
395 | } |
382 | } |
396 | while (cxix >= 0); |
|
|
397 | |
383 | |
398 | if (top_si->si_type == PERLSI_MAIN) |
384 | if (top_si->si_type == PERLSI_MAIN) |
399 | break; |
385 | break; |
400 | |
386 | |
401 | top_si = top_si->si_prev; |
387 | top_si = top_si->si_prev; |
… | |
… | |
417 | c->curstack = PL_curstack; |
403 | c->curstack = PL_curstack; |
418 | c->mainstack = PL_mainstack; |
404 | c->mainstack = PL_mainstack; |
419 | c->stack_sp = PL_stack_sp; |
405 | c->stack_sp = PL_stack_sp; |
420 | c->op = PL_op; |
406 | c->op = PL_op; |
421 | c->curpad = PL_curpad; |
407 | c->curpad = PL_curpad; |
|
|
408 | c->comppad = PL_comppad; |
|
|
409 | c->compcv = PL_compcv; |
422 | c->stack_base = PL_stack_base; |
410 | c->stack_base = PL_stack_base; |
423 | c->stack_max = PL_stack_max; |
411 | c->stack_max = PL_stack_max; |
424 | c->tmps_stack = PL_tmps_stack; |
412 | c->tmps_stack = PL_tmps_stack; |
425 | c->tmps_floor = PL_tmps_floor; |
413 | c->tmps_floor = PL_tmps_floor; |
426 | c->tmps_ix = PL_tmps_ix; |
414 | c->tmps_ix = PL_tmps_ix; |
… | |
… | |
432 | c->scopestack_ix = PL_scopestack_ix; |
420 | c->scopestack_ix = PL_scopestack_ix; |
433 | c->scopestack_max = PL_scopestack_max; |
421 | c->scopestack_max = PL_scopestack_max; |
434 | c->savestack = PL_savestack; |
422 | c->savestack = PL_savestack; |
435 | c->savestack_ix = PL_savestack_ix; |
423 | c->savestack_ix = PL_savestack_ix; |
436 | c->savestack_max = PL_savestack_max; |
424 | c->savestack_max = PL_savestack_max; |
|
|
425 | #if PERL_VERSION < 9 |
437 | c->retstack = PL_retstack; |
426 | c->retstack = PL_retstack; |
438 | c->retstack_ix = PL_retstack_ix; |
427 | c->retstack_ix = PL_retstack_ix; |
439 | c->retstack_max = PL_retstack_max; |
428 | c->retstack_max = PL_retstack_max; |
|
|
429 | #endif |
|
|
430 | c->curpm = PL_curpm; |
440 | c->curcop = PL_curcop; |
431 | c->curcop = PL_curcop; |
441 | c->top_env = PL_top_env; |
432 | c->top_env = PL_top_env; |
442 | } |
433 | } |
443 | |
434 | |
444 | /* |
435 | /* |
445 | * allocate various perl stacks. This is an exact copy |
436 | * allocate various perl stacks. This is an exact copy |
446 | * of perl.c:init_stacks, except that it uses less memory |
437 | * of perl.c:init_stacks, except that it uses less memory |
447 | * on the assumption that coroutines do not usually need |
438 | * on the (sometimes correct) assumption that coroutines do |
448 | * a lot of stackspace. |
439 | * not usually need a lot of stackspace. |
449 | */ |
440 | */ |
450 | STATIC void |
441 | static void |
451 | coro_init_stacks (pTHX) |
442 | coro_init_stacks (pTHX) |
452 | { |
443 | { |
|
|
444 | LOCK; |
|
|
445 | |
453 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
446 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
454 | PL_curstackinfo->si_type = PERLSI_MAIN; |
447 | PL_curstackinfo->si_type = PERLSI_MAIN; |
455 | PL_curstack = PL_curstackinfo->si_stack; |
448 | PL_curstack = PL_curstackinfo->si_stack; |
456 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
449 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
457 | |
450 | |
… | |
… | |
466 | |
459 | |
467 | New(54,PL_markstack,16,I32); |
460 | New(54,PL_markstack,16,I32); |
468 | PL_markstack_ptr = PL_markstack; |
461 | PL_markstack_ptr = PL_markstack; |
469 | PL_markstack_max = PL_markstack + 16; |
462 | PL_markstack_max = PL_markstack + 16; |
470 | |
463 | |
|
|
464 | #ifdef SET_MARK_OFFSET |
471 | SET_MARK_OFFSET; |
465 | SET_MARK_OFFSET; |
|
|
466 | #endif |
472 | |
467 | |
473 | New(54,PL_scopestack,16,I32); |
468 | New(54,PL_scopestack,16,I32); |
474 | PL_scopestack_ix = 0; |
469 | PL_scopestack_ix = 0; |
475 | PL_scopestack_max = 16; |
470 | PL_scopestack_max = 16; |
476 | |
471 | |
477 | New(54,PL_savestack,96,ANY); |
472 | New(54,PL_savestack,96,ANY); |
478 | PL_savestack_ix = 0; |
473 | PL_savestack_ix = 0; |
479 | PL_savestack_max = 96; |
474 | PL_savestack_max = 96; |
480 | |
475 | |
|
|
476 | #if PERL_VERSION < 9 |
481 | New(54,PL_retstack,8,OP*); |
477 | New(54,PL_retstack,8,OP*); |
482 | PL_retstack_ix = 0; |
478 | PL_retstack_ix = 0; |
483 | PL_retstack_max = 8; |
479 | PL_retstack_max = 8; |
|
|
480 | #endif |
|
|
481 | |
|
|
482 | UNLOCK; |
484 | } |
483 | } |
485 | |
484 | |
486 | /* |
485 | /* |
487 | * destroy the stacks, the callchain etc... |
486 | * destroy the stacks, the callchain etc... |
488 | * still there is a memleak of 128 bytes... |
|
|
489 | */ |
487 | */ |
490 | STATIC void |
488 | static void |
491 | destroy_stacks(pTHX) |
489 | destroy_stacks(pTHX) |
492 | { |
490 | { |
|
|
491 | if (!IN_DESTRUCT) |
|
|
492 | { |
493 | /* is this ugly, I ask? */ |
493 | /* is this ugly, I ask? */ |
494 | while (PL_scopestack_ix) |
494 | LEAVE_SCOPE (0); |
495 | LEAVE; |
|
|
496 | |
495 | |
497 | /* sure it is, but more important: is it correct?? :/ */ |
496 | /* sure it is, but more important: is it correct?? :/ */ |
498 | while (PL_tmps_ix > PL_tmps_floor) /* should only ever be one iteration */ |
|
|
499 | FREETMPS; |
497 | FREETMPS; |
|
|
498 | |
|
|
499 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
|
|
500 | } |
500 | |
501 | |
501 | while (PL_curstackinfo->si_next) |
502 | while (PL_curstackinfo->si_next) |
502 | PL_curstackinfo = PL_curstackinfo->si_next; |
503 | PL_curstackinfo = PL_curstackinfo->si_next; |
503 | |
504 | |
504 | while (PL_curstackinfo) |
505 | while (PL_curstackinfo) |
505 | { |
506 | { |
506 | PERL_SI *p = PL_curstackinfo->si_prev; |
507 | PERL_SI *p = PL_curstackinfo->si_prev; |
507 | |
508 | |
508 | { |
509 | { /*D*//*remove*/ |
509 | dSP; |
510 | dSP; |
510 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
511 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
511 | PUTBACK; /* possibly superfluous */ |
512 | PUTBACK; /* possibly superfluous */ |
512 | } |
513 | } |
513 | |
514 | |
514 | if (PL_main_cv != Nullcv) /* don't during destruction. hack? */ |
515 | if (!IN_DESTRUCT) |
515 | dounwind(-1); |
516 | { |
516 | |
517 | dounwind (-1);/*D*//*remove*/ |
517 | SvREFCNT_dec(PL_curstackinfo->si_stack); |
518 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
|
|
519 | } |
|
|
520 | |
518 | Safefree(PL_curstackinfo->si_cxstack); |
521 | Safefree (PL_curstackinfo->si_cxstack); |
519 | Safefree(PL_curstackinfo); |
522 | Safefree (PL_curstackinfo); |
520 | PL_curstackinfo = p; |
523 | PL_curstackinfo = p; |
521 | } |
524 | } |
522 | |
525 | |
523 | Safefree(PL_tmps_stack); |
526 | Safefree (PL_tmps_stack); |
524 | Safefree(PL_markstack); |
527 | Safefree (PL_markstack); |
525 | Safefree(PL_scopestack); |
528 | Safefree (PL_scopestack); |
526 | Safefree(PL_savestack); |
529 | Safefree (PL_savestack); |
|
|
530 | #if PERL_VERSION < 9 |
527 | Safefree(PL_retstack); |
531 | Safefree (PL_retstack); |
|
|
532 | #endif |
528 | } |
533 | } |
529 | |
534 | |
530 | static void |
535 | static void |
531 | allocate_stack (Coro__State ctx, int alloc) |
536 | allocate_stack (Coro__State ctx, int alloc) |
532 | { |
537 | { |
… | |
… | |
535 | New (0, stack, 1, coro_stack); |
540 | New (0, stack, 1, coro_stack); |
536 | |
541 | |
537 | stack->refcnt = 1; |
542 | stack->refcnt = 1; |
538 | stack->usecnt = 1; |
543 | stack->usecnt = 1; |
539 | stack->gencnt = ctx->gencnt = 0; |
544 | stack->gencnt = ctx->gencnt = 0; |
|
|
545 | |
540 | if (alloc) |
546 | if (alloc) |
541 | { |
547 | { |
542 | #ifdef HAVE_MMAP |
548 | #if HAVE_MMAP |
543 | stack->ssize = 128 * 1024 * sizeof (long); /* mmap should do allocate-on-write for us */ |
549 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */ |
544 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, 0, 0); |
550 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
545 | if (stack->sptr == (void *)-1) |
551 | if (stack->sptr != (void *)-1) |
546 | #endif |
|
|
547 | { |
552 | { |
548 | /*FIXME*//*D*//* reasonable stack size! */ |
553 | # if STACKGUARD |
|
|
554 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
555 | # endif |
|
|
556 | } |
|
|
557 | else |
|
|
558 | #endif |
|
|
559 | { |
549 | stack->ssize = -4096 * sizeof (long); |
560 | stack->ssize = - (STACKSIZE * (long)sizeof (long)); |
550 | New (0, stack->sptr, 4096, long); |
561 | New (0, stack->sptr, STACKSIZE, long); |
551 | } |
562 | } |
552 | } |
563 | } |
553 | else |
564 | else |
554 | stack->sptr = 0; |
565 | stack->sptr = 0; |
555 | |
566 | |
… | |
… | |
563 | |
574 | |
564 | ctx->stack = 0; |
575 | ctx->stack = 0; |
565 | |
576 | |
566 | if (stack) |
577 | if (stack) |
567 | { |
578 | { |
568 | printf ("deallocating stack %p %d\n", stack, stack->refcnt);/*D*/ |
|
|
569 | if (!--stack->refcnt) |
579 | if (!--stack->refcnt) |
570 | { |
580 | { |
571 | #ifdef HAVE_MMAP |
581 | #ifdef HAVE_MMAP |
572 | if (stack->ssize > 0 && stack->sptr) |
582 | if (stack->ssize > 0 && stack->sptr) |
573 | munmap (stack->sptr, stack->ssize); |
583 | munmap (stack->sptr, stack->ssize); |
574 | else |
584 | else |
575 | #else |
585 | #endif |
576 | Safefree (stack->sptr); |
586 | Safefree (stack->sptr); |
577 | #endif |
587 | |
578 | Safefree (stack); |
588 | Safefree (stack); |
579 | } |
589 | } |
580 | else if (ctx->gencnt == stack->gencnt) |
590 | else if (ctx->gencnt == stack->gencnt) |
581 | --stack->usecnt; |
591 | --stack->usecnt; |
582 | } |
592 | } |
… | |
… | |
586 | setup_coro (void *arg) |
596 | setup_coro (void *arg) |
587 | { |
597 | { |
588 | /* |
598 | /* |
589 | * emulate part of the perl startup here. |
599 | * emulate part of the perl startup here. |
590 | */ |
600 | */ |
|
|
601 | dTHX; |
591 | dSP; |
602 | dSP; |
592 | Coro__State ctx = (Coro__State)arg; |
603 | Coro__State ctx = (Coro__State)arg; |
593 | SV *sub_init = (SV*)get_cv(SUB_INIT, FALSE); |
604 | SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); |
594 | |
605 | |
595 | coro_init_stacks (aTHX); |
606 | coro_init_stacks (aTHX); |
596 | /*PL_curcop = 0;*/ |
607 | /*PL_curcop = 0;*/ |
597 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
608 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
598 | SvREFCNT_dec (GvAV (PL_defgv)); |
609 | SvREFCNT_dec (GvAV (PL_defgv)); |
599 | GvAV (PL_defgv) = ctx->args; |
610 | GvAV (PL_defgv) = ctx->args; ctx->args = 0; |
600 | |
611 | |
601 | SPAGAIN; |
612 | SPAGAIN; |
602 | |
613 | |
603 | if (ctx->stack) |
614 | if (ctx->stack) |
604 | { |
615 | { |
… | |
… | |
615 | } |
626 | } |
616 | else |
627 | else |
617 | { |
628 | { |
618 | UNOP myop; |
629 | UNOP myop; |
619 | |
630 | |
620 | PL_op = (OP *)&myop; |
|
|
621 | |
|
|
622 | Zero(&myop, 1, UNOP); |
631 | Zero(&myop, 1, UNOP); |
623 | myop.op_next = Nullop; |
632 | myop.op_next = Nullop; |
624 | myop.op_flags = OPf_WANT_VOID; |
633 | myop.op_flags = OPf_WANT_VOID; |
|
|
634 | |
|
|
635 | PL_op = (OP *)&myop; |
625 | |
636 | |
626 | PUSHMARK(SP); |
637 | PUSHMARK(SP); |
627 | XPUSHs (sub_init); |
638 | XPUSHs (sub_init); |
628 | /* |
639 | /* |
629 | * the next line is slightly wrong, as PL_op->op_next |
640 | * the next line is slightly wrong, as PL_op->op_next |
… | |
… | |
631 | * that doesn't matter, though, since it is only |
642 | * that doesn't matter, though, since it is only |
632 | * pp_nextstate and we never return... |
643 | * pp_nextstate and we never return... |
633 | * ah yes, and I don't care anyways ;) |
644 | * ah yes, and I don't care anyways ;) |
634 | */ |
645 | */ |
635 | PUTBACK; |
646 | PUTBACK; |
636 | PL_op = pp_entersub(); |
647 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
637 | SPAGAIN; |
648 | SPAGAIN; |
638 | |
649 | |
639 | ENTER; /* necessary e.g. for dounwind */ |
650 | ENTER; /* necessary e.g. for dounwind */ |
640 | } |
651 | } |
641 | } |
652 | } |
… | |
… | |
644 | continue_coro (void *arg) |
655 | continue_coro (void *arg) |
645 | { |
656 | { |
646 | /* |
657 | /* |
647 | * this is a _very_ stripped down perl interpreter ;) |
658 | * this is a _very_ stripped down perl interpreter ;) |
648 | */ |
659 | */ |
|
|
660 | dTHX; |
649 | Coro__State ctx = (Coro__State)arg; |
661 | Coro__State ctx = (Coro__State)arg; |
650 | |
662 | |
651 | /*FIXME*//* must set up top_env here */ |
663 | PL_top_env = &PL_start_env; |
|
|
664 | |
652 | ctx->cursp = 0; |
665 | ctx->cursp = 0; |
653 | PL_op = PL_op->op_next; |
666 | PL_op = PL_op->op_next; |
654 | CALLRUNOPS(aTHX); |
667 | CALLRUNOPS(aTHX); |
655 | |
668 | |
656 | abort (); |
669 | abort (); |
657 | } |
670 | } |
658 | |
671 | |
659 | STATIC void |
672 | /* never call directly, always through the coro_state_transfer global variable */ |
|
|
673 | static void |
660 | transfer(pTHX_ struct coro *prev, struct coro *next, int flags) |
674 | transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
661 | { |
675 | { |
662 | dSTACKLEVEL; |
676 | dSTACKLEVEL; |
663 | static struct coro *xnext; |
|
|
664 | |
677 | |
665 | printf ("%p => %p\n", prev, next);/*D*/ |
|
|
666 | if (prev != next) |
678 | if (prev != next) |
667 | { |
679 | { |
668 | xnext = next; |
680 | /* has this coro been created yet? */ |
669 | |
|
|
670 | if (next->mainstack) |
681 | if (next->mainstack) |
671 | { |
682 | { |
|
|
683 | LOCK; |
672 | SAVE (prev, flags); |
684 | SAVE (prev, flags); |
673 | LOAD (next); |
685 | LOAD (next); |
|
|
686 | UNLOCK; |
674 | |
687 | |
675 | /* mark this state as in-use */ |
688 | /* mark this state as in-use */ |
676 | next->mainstack = 0; |
689 | next->mainstack = 0; |
677 | next->tmps_ix = -2; |
690 | next->tmps_ix = -2; |
678 | |
691 | |
… | |
… | |
697 | continue_coro, (void *)next, |
710 | continue_coro, (void *)next, |
698 | next->stack->sptr, labs (next->stack->ssize)); |
711 | next->stack->sptr, labs (next->stack->ssize)); |
699 | } |
712 | } |
700 | |
713 | |
701 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
714 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
715 | prev->cursp = stacklevel; |
702 | /* don't add any code here */ |
716 | /* don't add any code here */ |
703 | } |
717 | } |
704 | |
718 | else |
|
|
719 | next->cursp = stacklevel; |
705 | } |
720 | } |
706 | else if (next->tmps_ix == -2) |
721 | else if (next->tmps_ix == -2) |
707 | croak ("tried to transfer to running coroutine"); |
722 | croak ("tried to transfer to running coroutine"); |
708 | else |
723 | else |
709 | { |
724 | { |
|
|
725 | LOCK; |
710 | SAVE (prev, -1); /* first get rid of the old state */ |
726 | SAVE (prev, -1); /* first get rid of the old state */ |
|
|
727 | UNLOCK; |
711 | |
728 | |
|
|
729 | /* create the coroutine for the first time */ |
712 | if (flags & TRANSFER_SAVE_CCTXT) |
730 | if (flags & TRANSFER_SAVE_CCTXT) |
713 | { |
731 | { |
714 | if (!prev->stack) |
732 | if (!prev->stack) |
715 | allocate_stack (prev, 0); |
733 | allocate_stack (prev, 0); |
716 | |
734 | |
|
|
735 | /* the new coroutine starts with start_env again */ |
|
|
736 | PL_top_env = &PL_start_env; |
|
|
737 | |
717 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
738 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
718 | { |
739 | { |
719 | setup_coro (next); |
740 | setup_coro (next); |
|
|
741 | next->cursp = stacklevel; |
720 | |
742 | |
721 | prev->stack->refcnt++; |
743 | prev->stack->refcnt++; |
722 | prev->stack->usecnt++; |
744 | prev->stack->usecnt++; |
723 | next->stack = prev->stack; |
745 | next->stack = prev->stack; |
724 | next->gencnt = prev->gencnt; |
746 | next->gencnt = prev->gencnt; |
725 | } |
747 | } |
726 | else |
748 | else |
727 | { |
749 | { |
|
|
750 | assert (!next->stack); |
728 | allocate_stack (next, 1); |
751 | allocate_stack (next, 1); |
729 | coro_create (&(next->stack->cctx), |
752 | coro_create (&(next->stack->cctx), |
730 | setup_coro, (void *)next, |
753 | setup_coro, (void *)next, |
731 | next->stack->sptr, labs (next->stack->ssize)); |
754 | next->stack->sptr, labs (next->stack->ssize)); |
732 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
755 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
756 | prev->cursp = stacklevel; |
733 | /* don't add any code here */ |
757 | /* don't add any code here */ |
734 | } |
758 | } |
735 | } |
759 | } |
736 | else |
760 | else |
|
|
761 | { |
737 | setup_coro (next); |
762 | setup_coro (next); |
|
|
763 | next->cursp = stacklevel; |
|
|
764 | } |
738 | } |
765 | } |
739 | } |
766 | } |
740 | |
767 | |
741 | xnext->cursp = stacklevel; |
768 | LOCK; |
742 | } |
769 | if (coro_mortal) |
743 | |
|
|
744 | static struct coro * |
|
|
745 | sv_to_coro (SV *arg, const char *funcname, const char *varname) |
|
|
746 | { |
|
|
747 | if (SvROK(arg) && SvTYPE(SvRV(arg)) == SVt_PVHV) |
|
|
748 | { |
770 | { |
749 | HE *he = hv_fetch_ent((HV *)SvRV(arg), ucoro_state_sv, 0, ucoro_state_hash); |
771 | SvREFCNT_dec (coro_mortal); |
750 | |
772 | coro_mortal = 0; |
751 | if (!he) |
|
|
752 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", funcname, varname); |
|
|
753 | |
|
|
754 | arg = HeVAL(he); |
|
|
755 | } |
773 | } |
756 | |
774 | UNLOCK; |
|
|
775 | } |
|
|
776 | |
|
|
777 | /* use this function pointer to call the above function */ |
|
|
778 | /* this is done to increase chances of the compiler not inlining the call */ |
|
|
779 | void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; |
|
|
780 | |
|
|
781 | #define SV_CORO(sv,func) \ |
|
|
782 | do { \ |
|
|
783 | if (SvROK (sv)) \ |
|
|
784 | sv = SvRV (sv); \ |
|
|
785 | \ |
|
|
786 | if (SvTYPE (sv) == SVt_PVHV) \ |
|
|
787 | { \ |
|
|
788 | HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ |
|
|
789 | \ |
|
|
790 | if (!he) \ |
|
|
791 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ |
|
|
792 | \ |
|
|
793 | (sv) = SvRV (HeVAL(he)); \ |
|
|
794 | } \ |
|
|
795 | \ |
757 | /* must also be changed inside Coro::Cont::yield */ |
796 | /* must also be changed inside Coro::Cont::yield */ \ |
758 | if (SvROK(arg) && SvSTASH(SvRV(arg)) == coro_state_stash) |
797 | if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \ |
759 | return (struct coro *) SvIV((SV*)SvRV(arg)); |
|
|
760 | |
|
|
761 | croak ("%s() -- %s is not (and contains not) a Coro::State object", funcname, varname); |
798 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
762 | /*NORETURN*/ |
799 | \ |
763 | } |
800 | } while(0) |
764 | |
801 | |
|
|
802 | #define SvSTATE(sv) INT2PTR (struct coro *, SvIVX (sv)) |
|
|
803 | |
765 | static void |
804 | static void |
766 | api_transfer(pTHX_ SV *prev, SV *next, int flags) |
805 | api_transfer (pTHX_ SV *prev, SV *next, int flags) |
767 | { |
806 | { |
768 | transfer(aTHX_ |
807 | SV_CORO (prev, "Coro::transfer"); |
769 | sv_to_coro (prev, "Coro::transfer", "prev"), |
808 | SV_CORO (next, "Coro::transfer"); |
770 | sv_to_coro (next, "Coro::transfer", "next"), |
809 | |
771 | flags); |
810 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
772 | } |
811 | } |
773 | |
812 | |
774 | /** Coro ********************************************************************/ |
813 | /** Coro ********************************************************************/ |
775 | |
814 | |
776 | #define PRIO_MAX 3 |
815 | #define PRIO_MAX 3 |
… | |
… | |
780 | #define PRIO_IDLE -3 |
819 | #define PRIO_IDLE -3 |
781 | #define PRIO_MIN -4 |
820 | #define PRIO_MIN -4 |
782 | |
821 | |
783 | /* for Coro.pm */ |
822 | /* for Coro.pm */ |
784 | static GV *coro_current, *coro_idle; |
823 | static GV *coro_current, *coro_idle; |
785 | static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; |
824 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
786 | static int coro_nready; |
825 | static int coro_nready; |
787 | |
826 | |
788 | static void |
827 | static void |
789 | coro_enq (SV *sv) |
828 | coro_enq (pTHX_ SV *sv) |
790 | { |
829 | { |
791 | if (SvROK (sv)) |
830 | SV **xprio; |
792 | { |
831 | int prio; |
793 | SV *hv = SvRV (sv); |
832 | |
794 | if (SvTYPE (hv) == SVt_PVHV) |
833 | if (SvTYPE (sv) != SVt_PVHV) |
795 | { |
|
|
796 | SV **xprio = hv_fetch ((HV *)hv, "prio", 4, 0); |
|
|
797 | int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; |
|
|
798 | |
|
|
799 | prio = prio > PRIO_MAX ? PRIO_MAX |
|
|
800 | : prio < PRIO_MIN ? PRIO_MIN |
|
|
801 | : prio; |
|
|
802 | |
|
|
803 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
804 | coro_nready++; |
|
|
805 | |
|
|
806 | return; |
|
|
807 | } |
|
|
808 | } |
|
|
809 | |
|
|
810 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
834 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
835 | |
|
|
836 | xprio = hv_fetch ((HV *)sv, "prio", 4, 0); |
|
|
837 | prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; |
|
|
838 | |
|
|
839 | prio = prio > PRIO_MAX ? PRIO_MAX |
|
|
840 | : prio < PRIO_MIN ? PRIO_MIN |
|
|
841 | : prio; |
|
|
842 | |
|
|
843 | av_push (coro_ready [prio - PRIO_MIN], sv); |
|
|
844 | coro_nready++; |
811 | } |
845 | } |
812 | |
846 | |
813 | static SV * |
847 | static SV * |
814 | coro_deq (int min_prio) |
848 | coro_deq (pTHX_ int min_prio) |
815 | { |
849 | { |
816 | int prio = PRIO_MAX - PRIO_MIN; |
850 | int prio = PRIO_MAX - PRIO_MIN; |
817 | |
851 | |
818 | min_prio -= PRIO_MIN; |
852 | min_prio -= PRIO_MIN; |
819 | if (min_prio < 0) |
853 | if (min_prio < 0) |
820 | min_prio = 0; |
854 | min_prio = 0; |
821 | |
855 | |
822 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
856 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
823 | if (av_len (coro_ready[prio]) >= 0) |
857 | if (AvFILLp (coro_ready [prio]) >= 0) |
824 | { |
858 | { |
825 | coro_nready--; |
859 | coro_nready--; |
826 | return av_shift (coro_ready[prio]); |
860 | return av_shift (coro_ready [prio]); |
827 | } |
861 | } |
828 | |
862 | |
829 | return 0; |
863 | return 0; |
830 | } |
864 | } |
831 | |
865 | |
832 | static void |
866 | static void |
833 | api_ready (SV *coro) |
867 | api_ready (SV *coro) |
834 | { |
868 | { |
|
|
869 | dTHX; |
|
|
870 | |
|
|
871 | if (SvROK (coro)) |
|
|
872 | coro = SvRV (coro); |
|
|
873 | |
|
|
874 | LOCK; |
835 | coro_enq (SvREFCNT_inc (coro)); |
875 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
|
|
876 | UNLOCK; |
836 | } |
877 | } |
837 | |
878 | |
838 | static void |
879 | static void |
839 | api_schedule (int cede) |
880 | api_schedule (void) |
840 | { |
881 | { |
|
|
882 | dTHX; |
|
|
883 | |
841 | SV *prev, *next; |
884 | SV *prev, *next; |
842 | |
885 | |
|
|
886 | LOCK; |
|
|
887 | |
843 | prev = GvSV (coro_current); |
888 | prev = SvRV (GvSV (coro_current)); |
844 | |
|
|
845 | if (cede) |
|
|
846 | coro_enq (SvREFCNT_inc (prev)); |
|
|
847 | |
|
|
848 | next = coro_deq (PRIO_MIN); |
889 | next = coro_deq (aTHX_ PRIO_MIN); |
849 | |
890 | |
850 | if (!next) |
891 | if (!next) |
851 | next = SvREFCNT_inc (GvSV (coro_idle)); |
892 | next = SvREFCNT_inc (SvRV (GvSV (coro_idle))); |
852 | |
893 | |
853 | GvSV (coro_current) = SvREFCNT_inc (next); |
894 | /* free this only after the transfer */ |
854 | transfer (aTHX_ |
895 | coro_mortal = prev; |
855 | sv_to_coro (prev, "Coro::schedule", "current coroutine"), |
896 | SV_CORO (prev, "Coro::schedule"); |
856 | sv_to_coro (next, "Coro::schedule", "next coroutine"), |
897 | |
|
|
898 | SvRV (GvSV (coro_current)) = next; |
|
|
899 | |
|
|
900 | SV_CORO (next, "Coro::schedule"); |
|
|
901 | |
|
|
902 | UNLOCK; |
|
|
903 | |
|
|
904 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), |
857 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
905 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
858 | SvREFCNT_dec (next); |
906 | } |
859 | SvREFCNT_dec (prev); |
907 | |
|
|
908 | static void |
|
|
909 | api_cede (void) |
|
|
910 | { |
|
|
911 | dTHX; |
|
|
912 | |
|
|
913 | LOCK; |
|
|
914 | coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
915 | UNLOCK; |
|
|
916 | |
|
|
917 | api_schedule (); |
860 | } |
918 | } |
861 | |
919 | |
862 | MODULE = Coro::State PACKAGE = Coro::State |
920 | MODULE = Coro::State PACKAGE = Coro::State |
863 | |
921 | |
864 | PROTOTYPES: ENABLE |
922 | PROTOTYPES: ENABLE |
865 | |
923 | |
866 | BOOT: |
924 | BOOT: |
867 | { /* {} necessary for stoopid perl-5.6.x */ |
925 | { /* {} necessary for stoopid perl-5.6.x */ |
|
|
926 | #ifdef USE_ITHREADS |
|
|
927 | MUTEX_INIT (&coro_mutex); |
|
|
928 | #endif |
|
|
929 | BOOT_PAGESIZE; |
|
|
930 | |
868 | ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); |
931 | ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); |
869 | PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); |
932 | PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); |
870 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
933 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
871 | |
934 | |
872 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
935 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
873 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
936 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
874 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
937 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
875 | newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); |
938 | newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); |
876 | |
|
|
877 | if (!padlist_cache) |
|
|
878 | padlist_cache = newHV (); |
|
|
879 | |
939 | |
880 | main_mainstack = PL_mainstack; |
940 | main_mainstack = PL_mainstack; |
881 | |
941 | |
882 | coroapi.ver = CORO_API_VERSION; |
942 | coroapi.ver = CORO_API_VERSION; |
883 | coroapi.transfer = api_transfer; |
943 | coroapi.transfer = api_transfer; |
… | |
… | |
891 | Coro__State coro; |
951 | Coro__State coro; |
892 | |
952 | |
893 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
953 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
894 | croak ("Coro::State::_newprocess expects an arrayref"); |
954 | croak ("Coro::State::_newprocess expects an arrayref"); |
895 | |
955 | |
896 | New (0, coro, 1, struct coro); |
956 | Newz (0, coro, 1, struct coro); |
897 | |
957 | |
898 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
958 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
899 | coro->mainstack = 0; /* actual work is done inside transfer */ |
959 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
900 | coro->stack = 0; |
960 | /*coro->stack = 0;*/ |
901 | |
961 | |
902 | RETVAL = coro; |
962 | RETVAL = coro; |
903 | OUTPUT: |
963 | OUTPUT: |
904 | RETVAL |
964 | RETVAL |
905 | |
965 | |
906 | void |
966 | void |
907 | transfer(prev, next, flags) |
967 | transfer(prev, next, flags) |
908 | Coro::State_or_hashref prev |
968 | SV *prev |
909 | Coro::State_or_hashref next |
969 | SV *next |
910 | int flags |
970 | int flags |
911 | PROTOTYPE: @ |
971 | PROTOTYPE: @ |
912 | CODE: |
972 | CODE: |
913 | PUTBACK; |
973 | PUTBACK; |
914 | transfer (aTHX_ prev, next, flags); |
974 | SV_CORO (next, "Coro::transfer"); |
|
|
975 | SV_CORO (prev, "Coro::transfer"); |
|
|
976 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
915 | SPAGAIN; |
977 | SPAGAIN; |
916 | |
978 | |
917 | void |
979 | void |
918 | DESTROY(coro) |
980 | DESTROY(coro) |
919 | Coro::State coro |
981 | Coro::State coro |
… | |
… | |
922 | if (coro->mainstack && coro->mainstack != main_mainstack) |
984 | if (coro->mainstack && coro->mainstack != main_mainstack) |
923 | { |
985 | { |
924 | struct coro temp; |
986 | struct coro temp; |
925 | |
987 | |
926 | PUTBACK; |
988 | PUTBACK; |
927 | SAVE(aTHX_ (&temp), TRANSFER_SAVE_ALL); |
989 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
928 | LOAD(aTHX_ coro); |
990 | LOAD (aTHX_ coro); |
929 | SPAGAIN; |
991 | SPAGAIN; |
930 | |
992 | |
931 | destroy_stacks (aTHX); |
993 | destroy_stacks (aTHX); |
932 | |
994 | |
933 | LOAD((&temp)); /* this will get rid of defsv etc.. */ |
995 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
934 | SPAGAIN; |
996 | SPAGAIN; |
935 | |
997 | |
936 | coro->mainstack = 0; |
998 | coro->mainstack = 0; |
937 | } |
999 | } |
938 | |
1000 | |
939 | deallocate_stack (coro); |
1001 | deallocate_stack (coro); |
940 | |
1002 | SvREFCNT_dec (coro->args); |
941 | Safefree (coro); |
1003 | Safefree (coro); |
942 | |
|
|
943 | void |
|
|
944 | flush() |
|
|
945 | CODE: |
|
|
946 | #ifdef MAY_FLUSH |
|
|
947 | flush_padlist_cache (); |
|
|
948 | #endif |
|
|
949 | |
1004 | |
950 | void |
1005 | void |
951 | _exit(code) |
1006 | _exit(code) |
952 | int code |
1007 | int code |
953 | PROTOTYPE: $ |
1008 | PROTOTYPE: $ |
954 | CODE: |
1009 | CODE: |
955 | #if defined(__GLIBC__) || _POSIX_C_SOURCE |
|
|
956 | _exit (code); |
1010 | _exit (code); |
957 | #else |
|
|
958 | signal (SIGTERM, SIG_DFL); |
|
|
959 | raise (SIGTERM); |
|
|
960 | exit (code); |
|
|
961 | #endif |
|
|
962 | |
1011 | |
963 | MODULE = Coro::State PACKAGE = Coro::Cont |
1012 | MODULE = Coro::State PACKAGE = Coro::Cont |
964 | |
|
|
965 | # this is slightly dirty (should expose a c-level api) |
|
|
966 | |
1013 | |
967 | void |
1014 | void |
968 | yield(...) |
1015 | yield(...) |
969 | PROTOTYPE: @ |
1016 | PROTOTYPE: @ |
970 | CODE: |
1017 | CODE: |
971 | static SV *returnstk; |
1018 | SV *yieldstack; |
972 | SV *sv; |
1019 | SV *sv; |
973 | AV *defav = GvAV (PL_defgv); |
1020 | AV *defav = GvAV (PL_defgv); |
974 | struct coro *prev, *next; |
1021 | struct coro *prev, *next; |
975 | |
1022 | |
976 | if (!returnstk) |
1023 | yieldstack = *hv_fetch ( |
977 | returnstk = SvRV (get_sv ("Coro::Cont::return", FALSE)); |
1024 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1025 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1026 | 0 |
|
|
1027 | ); |
978 | |
1028 | |
979 | /* set up @_ -- ugly */ |
1029 | /* set up @_ -- ugly */ |
980 | av_clear (defav); |
1030 | av_clear (defav); |
981 | av_fill (defav, items - 1); |
1031 | av_fill (defav, items - 1); |
982 | while (items--) |
1032 | while (items--) |
983 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
1033 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
984 | |
1034 | |
985 | mg_get (returnstk); /* isn't documentation wrong for mg_get? */ |
|
|
986 | sv = av_pop ((AV *)SvRV (returnstk)); |
1035 | sv = av_pop ((AV *)SvRV (yieldstack)); |
987 | prev = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); |
1036 | prev = SvSTATE ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); |
988 | next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); |
1037 | next = SvSTATE ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); |
989 | SvREFCNT_dec (sv); |
1038 | SvREFCNT_dec (sv); |
990 | |
1039 | |
991 | transfer(aTHX_ prev, next, 0); |
1040 | coro_state_transfer (aTHX_ prev, next, 0); |
992 | |
1041 | |
993 | MODULE = Coro::State PACKAGE = Coro |
1042 | MODULE = Coro::State PACKAGE = Coro |
994 | |
|
|
995 | # this is slightly dirty (should expose a c-level api) |
|
|
996 | |
1043 | |
997 | BOOT: |
1044 | BOOT: |
998 | { |
1045 | { |
999 | int i; |
1046 | int i; |
1000 | HV *stash = gv_stashpv ("Coro", TRUE); |
1047 | HV *stash = gv_stashpv ("Coro", TRUE); |
… | |
… | |
1014 | |
1061 | |
1015 | { |
1062 | { |
1016 | SV *sv = perl_get_sv("Coro::API", 1); |
1063 | SV *sv = perl_get_sv("Coro::API", 1); |
1017 | |
1064 | |
1018 | coroapi.schedule = api_schedule; |
1065 | coroapi.schedule = api_schedule; |
|
|
1066 | coroapi.cede = api_cede; |
1019 | coroapi.ready = api_ready; |
1067 | coroapi.ready = api_ready; |
1020 | coroapi.nready = &coro_nready; |
1068 | coroapi.nready = &coro_nready; |
1021 | coroapi.current = coro_current; |
1069 | coroapi.current = coro_current; |
1022 | |
1070 | |
1023 | GCoroAPI = &coroapi; |
1071 | GCoroAPI = &coroapi; |
1024 | sv_setiv(sv, (IV)&coroapi); |
1072 | sv_setiv (sv, (IV)&coroapi); |
1025 | SvREADONLY_on(sv); |
1073 | SvREADONLY_on (sv); |
1026 | } |
1074 | } |
1027 | } |
1075 | } |
|
|
1076 | |
|
|
1077 | #if !PERL_MICRO |
1028 | |
1078 | |
1029 | void |
1079 | void |
1030 | ready(self) |
1080 | ready(self) |
1031 | SV * self |
1081 | SV * self |
|
|
1082 | PROTOTYPE: $ |
1032 | CODE: |
1083 | CODE: |
1033 | api_ready (self); |
1084 | api_ready (self); |
|
|
1085 | |
|
|
1086 | #endif |
1034 | |
1087 | |
1035 | int |
1088 | int |
1036 | nready(...) |
1089 | nready(...) |
1037 | PROTOTYPE: |
1090 | PROTOTYPE: |
1038 | CODE: |
1091 | CODE: |
… | |
… | |
1041 | RETVAL |
1094 | RETVAL |
1042 | |
1095 | |
1043 | void |
1096 | void |
1044 | schedule(...) |
1097 | schedule(...) |
1045 | PROTOTYPE: |
1098 | PROTOTYPE: |
1046 | ALIAS: |
|
|
1047 | cede = 1 |
|
|
1048 | CODE: |
1099 | CODE: |
1049 | api_schedule (ix); |
1100 | api_schedule (); |
1050 | |
1101 | |
|
|
1102 | void |
|
|
1103 | cede(...) |
|
|
1104 | PROTOTYPE: |
|
|
1105 | CODE: |
|
|
1106 | api_cede (); |
|
|
1107 | |
|
|
1108 | # and these are hacks |
|
|
1109 | SV * |
|
|
1110 | _aio_get_state () |
|
|
1111 | CODE: |
|
|
1112 | { |
|
|
1113 | struct { |
|
|
1114 | int errorno; |
|
|
1115 | int laststype; |
|
|
1116 | int laststatval; |
|
|
1117 | Stat_t statcache; |
|
|
1118 | } data; |
|
|
1119 | |
|
|
1120 | data.errorno = errno; |
|
|
1121 | data.laststype = PL_laststype; |
|
|
1122 | data.laststatval = PL_laststatval; |
|
|
1123 | data.statcache = PL_statcache; |
|
|
1124 | |
|
|
1125 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1126 | } |
|
|
1127 | OUTPUT: |
|
|
1128 | RETVAL |
|
|
1129 | |
|
|
1130 | void |
|
|
1131 | _aio_set_state (char *data_) |
|
|
1132 | PROTOTYPE: $ |
|
|
1133 | CODE: |
|
|
1134 | { |
|
|
1135 | struct { |
|
|
1136 | int errorno; |
|
|
1137 | int laststype; |
|
|
1138 | int laststatval; |
|
|
1139 | Stat_t statcache; |
|
|
1140 | } *data = (void *)data_; |
|
|
1141 | |
|
|
1142 | errno = data->errorno; |
|
|
1143 | PL_laststype = data->laststype; |
|
|
1144 | PL_laststatval = data->laststatval; |
|
|
1145 | PL_statcache = data->statcache; |
|
|
1146 | } |