1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
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2 | |
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3 | #define PERL_NO_GET_CONTEXT |
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4 | #define PERL_EXT |
2 | |
5 | |
3 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
4 | #include "perl.h" |
7 | #include "perl.h" |
5 | #include "XSUB.h" |
8 | #include "XSUB.h" |
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9 | #include "perliol.h" |
6 | |
10 | |
7 | #include "patchlevel.h" |
11 | #include "patchlevel.h" |
8 | |
12 | |
9 | #include <stdio.h> |
13 | #include <stdio.h> |
10 | #include <errno.h> |
14 | #include <errno.h> |
11 | #include <assert.h> |
15 | #include <assert.h> |
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16 | |
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17 | #ifdef WIN32 |
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18 | # undef setjmp |
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19 | # undef longjmp |
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20 | # undef _exit |
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21 | # define setjmp _setjmp // deep magic, don't ask |
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22 | #else |
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23 | # include <inttypes.h> /* most portable stdint.h */ |
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24 | #endif |
12 | |
25 | |
13 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
14 | # include <unistd.h> |
27 | # include <unistd.h> |
15 | # include <sys/mman.h> |
28 | # include <sys/mman.h> |
16 | # ifndef MAP_ANONYMOUS |
29 | # ifndef MAP_ANONYMOUS |
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31 | #else |
44 | #else |
32 | # define PAGESIZE 0 |
45 | # define PAGESIZE 0 |
33 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
34 | #endif |
47 | #endif |
35 | |
48 | |
36 | #if USE_VALGRIND |
49 | #if CORO_USE_VALGRIND |
37 | # include <valgrind/valgrind.h> |
50 | # include <valgrind/valgrind.h> |
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51 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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52 | #else |
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53 | # define REGISTER_STACK(cctx,start,end) |
38 | #endif |
54 | #endif |
39 | |
55 | |
40 | /* the maximum number of idle cctx that will be pooled */ |
56 | /* the maximum number of idle cctx that will be pooled */ |
41 | #define MAX_IDLE_CCTX 8 |
57 | static int cctx_max_idle = 4; |
42 | |
58 | |
43 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
59 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
44 | (PERL_REVISION > (a) \ |
60 | (PERL_REVISION > (a) \ |
45 | || (PERL_REVISION == (a) \ |
61 | || (PERL_REVISION == (a) \ |
46 | && (PERL_VERSION > (b) \ |
62 | && (PERL_VERSION > (b) \ |
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… | |
65 | # ifndef IS_PADCONST |
81 | # ifndef IS_PADCONST |
66 | # define IS_PADCONST(v) 0 |
82 | # define IS_PADCONST(v) 0 |
67 | # endif |
83 | # endif |
68 | #endif |
84 | #endif |
69 | |
85 | |
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86 | /* 5.11 */ |
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87 | #ifndef CxHASARGS |
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88 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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89 | #endif |
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90 | |
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91 | /* 5.10.0 */ |
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92 | #ifndef SvREFCNT_inc_NN |
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93 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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94 | #endif |
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95 | |
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96 | /* 5.8.8 */ |
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97 | #ifndef GV_NOTQUAL |
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98 | # define GV_NOTQUAL 0 |
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99 | #endif |
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100 | #ifndef newSV |
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101 | # define newSV(l) NEWSV(0,l) |
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102 | #endif |
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103 | |
70 | /* 5.8.7 */ |
104 | /* 5.8.7 */ |
71 | #ifndef SvRV_set |
105 | #ifndef SvRV_set |
72 | # define SvRV_set(s,v) SvRV(s) = (v) |
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
73 | #endif |
107 | #endif |
74 | |
108 | |
75 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
109 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
76 | # undef STACKGUARD |
110 | # undef CORO_STACKGUARD |
77 | #endif |
111 | #endif |
78 | |
112 | |
79 | #ifndef STACKGUARD |
113 | #ifndef CORO_STACKGUARD |
80 | # define STACKGUARD 0 |
114 | # define CORO_STACKGUARD 0 |
81 | #endif |
115 | #endif |
82 | |
116 | |
83 | /* prefer perl internal functions over our own? */ |
117 | /* prefer perl internal functions over our own? */ |
84 | #ifndef PREFER_PERL_FUNCTIONS |
118 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
85 | # define PREFER_PERL_FUNCTIONS 0 |
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
86 | #endif |
120 | #endif |
87 | |
121 | |
88 | /* The next macro should declare a variable stacklevel that contains and approximation |
122 | /* The next macros try to return the current stack pointer, in an as |
89 | * to the current C stack pointer. Its property is that it changes with each call |
123 | * portable way as possible. */ |
90 | * and should be unique. */ |
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91 | #define dSTACKLEVEL int stacklevel |
124 | #define dSTACKLEVEL volatile char stacklevel |
92 | #define STACKLEVEL ((void *)&stacklevel) |
125 | #define STACKLEVEL ((void *)&stacklevel) |
93 | |
126 | |
94 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
95 | |
128 | |
96 | #if __GNUC__ >= 3 |
129 | #if __GNUC__ >= 3 |
97 | # define attribute(x) __attribute__(x) |
130 | # define attribute(x) __attribute__(x) |
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131 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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132 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
98 | #else |
133 | #else |
99 | # define attribute(x) |
134 | # define attribute(x) |
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135 | # define BARRIER |
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136 | # define expect(expr,value) (expr) |
100 | #endif |
137 | #endif |
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138 | |
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139 | #define expect_false(expr) expect ((expr) != 0, 0) |
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140 | #define expect_true(expr) expect ((expr) != 0, 1) |
101 | |
141 | |
102 | #define NOINLINE attribute ((noinline)) |
142 | #define NOINLINE attribute ((noinline)) |
103 | |
143 | |
104 | #include "CoroAPI.h" |
144 | #include "CoroAPI.h" |
105 | |
145 | |
106 | #ifdef USE_ITHREADS |
146 | #ifdef USE_ITHREADS |
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147 | |
107 | static perl_mutex coro_mutex; |
148 | static perl_mutex coro_lock; |
108 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
149 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
109 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
150 | # define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
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151 | # if CORO_PTHREAD |
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152 | static void *coro_thx; |
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153 | # endif |
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154 | |
110 | #else |
155 | #else |
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156 | |
111 | # define LOCK (void)0 |
157 | # define LOCK (void)0 |
112 | # define UNLOCK (void)0 |
158 | # define UNLOCK (void)0 |
113 | #endif |
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114 | |
159 | |
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160 | #endif |
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161 | |
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162 | # undef LOCK |
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163 | # define LOCK (void)0 |
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164 | # undef UNLOCK |
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165 | # define UNLOCK (void)0 |
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166 | |
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167 | /* helper storage struct for Coro::AIO */ |
115 | struct io_state |
168 | struct io_state |
116 | { |
169 | { |
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170 | AV *res; |
117 | int errorno; |
171 | int errorno; |
118 | I32 laststype; |
172 | I32 laststype; /* U16 in 5.10.0 */ |
119 | int laststatval; |
173 | int laststatval; |
120 | Stat_t statcache; |
174 | Stat_t statcache; |
121 | }; |
175 | }; |
122 | |
176 | |
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177 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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178 | |
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179 | static U32 cctx_gen; |
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180 | static size_t cctx_stacksize = CORO_STACKSIZE; |
123 | static struct CoroAPI coroapi; |
181 | static struct CoroAPI coroapi; |
124 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
182 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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183 | static JMPENV *main_top_env; |
125 | static HV *coro_state_stash, *coro_stash; |
184 | static HV *coro_state_stash, *coro_stash; |
126 | static SV *coro_mortal; /* will be freed after next transfer */ |
185 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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186 | |
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187 | static GV *irsgv; /* $/ */ |
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188 | static GV *stdoutgv; /* *STDOUT */ |
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189 | static SV *rv_diehook; |
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190 | static SV *rv_warnhook; |
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191 | static HV *hv_sig; /* %SIG */ |
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192 | |
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193 | /* async_pool helper stuff */ |
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194 | static SV *sv_pool_rss; |
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195 | static SV *sv_pool_size; |
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196 | static AV *av_async_pool; |
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197 | |
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198 | /* Coro::AnyEvent */ |
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199 | static SV *sv_activity; |
127 | |
200 | |
128 | static struct coro_cctx *cctx_first; |
201 | static struct coro_cctx *cctx_first; |
129 | static int cctx_count, cctx_idle; |
202 | static int cctx_count, cctx_idle; |
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203 | |
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204 | enum { |
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205 | CC_MAPPED = 0x01, |
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206 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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207 | CC_TRACE = 0x04, |
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208 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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209 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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210 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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211 | }; |
130 | |
212 | |
131 | /* this is a structure representing a c-level coroutine */ |
213 | /* this is a structure representing a c-level coroutine */ |
132 | typedef struct coro_cctx { |
214 | typedef struct coro_cctx { |
133 | struct coro_cctx *next; |
215 | struct coro_cctx *next; |
134 | |
216 | |
135 | /* the stack */ |
217 | /* the stack */ |
136 | void *sptr; |
218 | void *sptr; |
137 | long ssize; /* positive == mmap, otherwise malloc */ |
219 | size_t ssize; |
138 | |
220 | |
139 | /* cpu state */ |
221 | /* cpu state */ |
140 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
222 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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223 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
141 | JMPENV *top_env; |
224 | JMPENV *top_env; |
142 | coro_context cctx; |
225 | coro_context cctx; |
143 | |
226 | |
144 | int inuse; |
227 | U32 gen; |
145 | |
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146 | #if USE_VALGRIND |
228 | #if CORO_USE_VALGRIND |
147 | int valgrind_id; |
229 | int valgrind_id; |
148 | #endif |
230 | #endif |
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231 | unsigned char flags; |
149 | } coro_cctx; |
232 | } coro_cctx; |
150 | |
233 | |
151 | enum { |
234 | enum { |
152 | CF_RUNNING = 0x0001, /* coroutine is running */ |
235 | CF_RUNNING = 0x0001, /* coroutine is running */ |
153 | CF_READY = 0x0002, /* coroutine is ready */ |
236 | CF_READY = 0x0002, /* coroutine is ready */ |
154 | CF_NEW = 0x0004, /* ahs never been switched to */ |
237 | CF_NEW = 0x0004, /* has never been switched to */ |
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238 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
155 | }; |
239 | }; |
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240 | |
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241 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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242 | typedef struct { |
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243 | SV *defsv; |
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244 | AV *defav; |
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245 | SV *errsv; |
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246 | SV *irsgv; |
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247 | #define VAR(name,type) type name; |
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248 | # include "state.h" |
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249 | #undef VAR |
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250 | } perl_slots; |
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251 | |
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252 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
156 | |
253 | |
157 | /* this is a structure representing a perl-level coroutine */ |
254 | /* this is a structure representing a perl-level coroutine */ |
158 | struct coro { |
255 | struct coro { |
159 | /* the c coroutine allocated to this perl coroutine, if any */ |
256 | /* the c coroutine allocated to this perl coroutine, if any */ |
160 | coro_cctx *cctx; |
257 | coro_cctx *cctx; |
161 | |
258 | |
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259 | /* process data */ |
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260 | AV *mainstack; |
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261 | perl_slots *slot; /* basically the saved sp */ |
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262 | |
162 | /* data associated with this coroutine (initial args) */ |
263 | AV *args; /* data associated with this coroutine (initial args) */ |
163 | AV *args; |
264 | int refcnt; /* coroutines are refcounted, yes */ |
164 | int refcnt; |
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165 | int save; /* CORO_SAVE flags */ |
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166 | int flags; /* CF_ flags */ |
265 | int flags; /* CF_ flags */ |
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266 | HV *hv; /* the perl hash associated with this coro, if any */ |
167 | |
267 | |
168 | /* optionally saved, might be zero */ |
268 | /* statistics */ |
169 | AV *defav; /* @_ */ |
269 | int usecount; /* number of transfers to this coro */ |
170 | SV *defsv; /* $_ */ |
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171 | SV *errsv; /* $@ */ |
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172 | SV *irssv; /* $/ */ |
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173 | SV *irssv_sv; /* real $/ cache */ |
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174 | |
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175 | #define VAR(name,type) type name; |
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176 | # include "state.h" |
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177 | #undef VAR |
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178 | |
270 | |
179 | /* coro process data */ |
271 | /* coro process data */ |
180 | int prio; |
272 | int prio; |
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273 | SV *throw; /* exception to be thrown */ |
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274 | |
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275 | /* async_pool */ |
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276 | SV *saved_deffh; |
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277 | |
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278 | /* linked list */ |
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279 | struct coro *next, *prev; |
181 | }; |
280 | }; |
182 | |
281 | |
183 | typedef struct coro *Coro__State; |
282 | typedef struct coro *Coro__State; |
184 | typedef struct coro *Coro__State_or_hashref; |
283 | typedef struct coro *Coro__State_or_hashref; |
185 | |
284 | |
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285 | /** Coro ********************************************************************/ |
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286 | |
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287 | #define PRIO_MAX 3 |
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288 | #define PRIO_HIGH 1 |
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289 | #define PRIO_NORMAL 0 |
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290 | #define PRIO_LOW -1 |
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291 | #define PRIO_IDLE -3 |
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292 | #define PRIO_MIN -4 |
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293 | |
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294 | /* for Coro.pm */ |
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295 | static SV *coro_current; |
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296 | static SV *coro_readyhook; |
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297 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
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298 | static int coro_nready; |
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299 | static struct coro *coro_first; |
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300 | |
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301 | /** lowlevel stuff **********************************************************/ |
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302 | |
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303 | static SV * |
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304 | coro_get_sv (pTHX_ const char *name, int create) |
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305 | { |
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306 | #if PERL_VERSION_ATLEAST (5,10,0) |
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307 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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308 | get_sv (name, create); |
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309 | #endif |
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310 | return get_sv (name, create); |
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311 | } |
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312 | |
186 | static AV * |
313 | static AV * |
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314 | coro_get_av (pTHX_ const char *name, int create) |
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315 | { |
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316 | #if PERL_VERSION_ATLEAST (5,10,0) |
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317 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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318 | get_av (name, create); |
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319 | #endif |
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320 | return get_av (name, create); |
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321 | } |
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322 | |
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323 | static HV * |
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324 | coro_get_hv (pTHX_ const char *name, int create) |
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325 | { |
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326 | #if PERL_VERSION_ATLEAST (5,10,0) |
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327 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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328 | get_hv (name, create); |
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329 | #endif |
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330 | return get_hv (name, create); |
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331 | } |
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332 | |
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333 | static AV * |
187 | coro_clone_padlist (CV *cv) |
334 | coro_clone_padlist (pTHX_ CV *cv) |
188 | { |
335 | { |
189 | AV *padlist = CvPADLIST (cv); |
336 | AV *padlist = CvPADLIST (cv); |
190 | AV *newpadlist, *newpad; |
337 | AV *newpadlist, *newpad; |
191 | |
338 | |
192 | newpadlist = newAV (); |
339 | newpadlist = newAV (); |
193 | AvREAL_off (newpadlist); |
340 | AvREAL_off (newpadlist); |
194 | #if PERL_VERSION_ATLEAST (5,9,0) |
341 | #if PERL_VERSION_ATLEAST (5,10,0) |
195 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
342 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
196 | #else |
343 | #else |
197 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
344 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
198 | #endif |
345 | #endif |
199 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
346 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
200 | --AvFILLp (padlist); |
347 | --AvFILLp (padlist); |
201 | |
348 | |
202 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
349 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
203 | av_store (newpadlist, 1, (SV *)newpad); |
350 | av_store (newpadlist, 1, (SV *)newpad); |
204 | |
351 | |
205 | return newpadlist; |
352 | return newpadlist; |
206 | } |
353 | } |
207 | |
354 | |
208 | static void |
355 | static void |
209 | free_padlist (AV *padlist) |
356 | free_padlist (pTHX_ AV *padlist) |
210 | { |
357 | { |
211 | /* may be during global destruction */ |
358 | /* may be during global destruction */ |
212 | if (SvREFCNT (padlist)) |
359 | if (SvREFCNT (padlist)) |
213 | { |
360 | { |
214 | I32 i = AvFILLp (padlist); |
361 | I32 i = AvFILLp (padlist); |
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235 | AV *padlist; |
382 | AV *padlist; |
236 | AV *av = (AV *)mg->mg_obj; |
383 | AV *av = (AV *)mg->mg_obj; |
237 | |
384 | |
238 | /* casting is fun. */ |
385 | /* casting is fun. */ |
239 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
386 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
240 | free_padlist (padlist); |
387 | free_padlist (aTHX_ padlist); |
241 | |
388 | |
242 | SvREFCNT_dec (av); |
389 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
243 | |
390 | |
244 | return 0; |
391 | return 0; |
245 | } |
392 | } |
246 | |
393 | |
247 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
394 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
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395 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
248 | |
396 | |
249 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
397 | static MGVTBL coro_cv_vtbl = { |
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398 | 0, 0, 0, 0, |
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399 | coro_cv_free |
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400 | }; |
250 | |
401 | |
251 | #define CORO_MAGIC(cv) \ |
402 | #define CORO_MAGIC(sv, type) \ |
252 | SvMAGIC (cv) \ |
403 | SvMAGIC (sv) \ |
253 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
404 | ? SvMAGIC (sv)->mg_type == type \ |
254 | ? SvMAGIC (cv) \ |
405 | ? SvMAGIC (sv) \ |
255 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
406 | : mg_find (sv, type) \ |
256 | : 0 |
407 | : 0 |
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408 | |
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409 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
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410 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
411 | |
|
|
412 | static struct coro * |
|
|
413 | SvSTATE_ (pTHX_ SV *coro) |
|
|
414 | { |
|
|
415 | HV *stash; |
|
|
416 | MAGIC *mg; |
|
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417 | |
|
|
418 | if (SvROK (coro)) |
|
|
419 | coro = SvRV (coro); |
|
|
420 | |
|
|
421 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
422 | croak ("Coro::State object required"); |
|
|
423 | |
|
|
424 | stash = SvSTASH (coro); |
|
|
425 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
426 | { |
|
|
427 | /* very slow, but rare, check */ |
|
|
428 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
429 | croak ("Coro::State object required"); |
|
|
430 | } |
|
|
431 | |
|
|
432 | mg = CORO_MAGIC_state (coro); |
|
|
433 | return (struct coro *)mg->mg_ptr; |
|
|
434 | } |
|
|
435 | |
|
|
436 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
257 | |
437 | |
258 | /* the next two functions merely cache the padlists */ |
438 | /* the next two functions merely cache the padlists */ |
259 | static void |
439 | static void |
260 | get_padlist (CV *cv) |
440 | get_padlist (pTHX_ CV *cv) |
261 | { |
441 | { |
262 | MAGIC *mg = CORO_MAGIC (cv); |
442 | MAGIC *mg = CORO_MAGIC_cv (cv); |
263 | AV *av; |
443 | AV *av; |
264 | |
444 | |
265 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
445 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
266 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
446 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
267 | else |
447 | else |
268 | { |
448 | { |
269 | #if PREFER_PERL_FUNCTIONS |
449 | #if CORO_PREFER_PERL_FUNCTIONS |
270 | /* this is probably cleaner, but also slower? */ |
450 | /* this is probably cleaner? but also slower! */ |
|
|
451 | /* in practise, it seems to be less stable */ |
271 | CV *cp = Perl_cv_clone (cv); |
452 | CV *cp = Perl_cv_clone (cv); |
272 | CvPADLIST (cv) = CvPADLIST (cp); |
453 | CvPADLIST (cv) = CvPADLIST (cp); |
273 | CvPADLIST (cp) = 0; |
454 | CvPADLIST (cp) = 0; |
274 | SvREFCNT_dec (cp); |
455 | SvREFCNT_dec (cp); |
275 | #else |
456 | #else |
276 | CvPADLIST (cv) = coro_clone_padlist (cv); |
457 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
277 | #endif |
458 | #endif |
278 | } |
459 | } |
279 | } |
460 | } |
280 | |
461 | |
281 | static void |
462 | static void |
282 | put_padlist (CV *cv) |
463 | put_padlist (pTHX_ CV *cv) |
283 | { |
464 | { |
284 | MAGIC *mg = CORO_MAGIC (cv); |
465 | MAGIC *mg = CORO_MAGIC_cv (cv); |
285 | AV *av; |
466 | AV *av; |
286 | |
467 | |
287 | if (!mg) |
468 | if (expect_false (!mg)) |
288 | { |
469 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
289 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
290 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
291 | mg->mg_virtual = &vtbl_coro; |
|
|
292 | mg->mg_obj = (SV *)newAV (); |
|
|
293 | } |
|
|
294 | |
470 | |
295 | av = (AV *)mg->mg_obj; |
471 | av = (AV *)mg->mg_obj; |
296 | |
472 | |
297 | if (AvFILLp (av) >= AvMAX (av)) |
473 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
298 | av_extend (av, AvMAX (av) + 1); |
474 | av_extend (av, AvMAX (av) + 1); |
299 | |
475 | |
300 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
476 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
301 | } |
477 | } |
302 | |
478 | |
303 | #define SB do { |
479 | /** load & save, init *******************************************************/ |
304 | #define SE } while (0) |
|
|
305 | |
|
|
306 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
|
|
307 | |
480 | |
308 | static void |
481 | static void |
309 | load_perl (Coro__State c) |
482 | load_perl (pTHX_ Coro__State c) |
310 | { |
483 | { |
|
|
484 | perl_slots *slot = c->slot; |
|
|
485 | c->slot = 0; |
|
|
486 | |
|
|
487 | PL_mainstack = c->mainstack; |
|
|
488 | |
|
|
489 | GvSV (PL_defgv) = slot->defsv; |
|
|
490 | GvAV (PL_defgv) = slot->defav; |
|
|
491 | GvSV (PL_errgv) = slot->errsv; |
|
|
492 | GvSV (irsgv) = slot->irsgv; |
|
|
493 | |
311 | #define VAR(name,type) PL_ ## name = c->name; |
494 | #define VAR(name,type) PL_ ## name = slot->name; |
312 | # include "state.h" |
495 | # include "state.h" |
313 | #undef VAR |
496 | #undef VAR |
314 | |
|
|
315 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
|
|
316 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
|
|
317 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
318 | if (c->irssv) |
|
|
319 | { |
|
|
320 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
321 | SvREFCNT_dec (c->irssv); |
|
|
322 | else |
|
|
323 | { |
|
|
324 | REPLACE_SV (PL_rs, c->irssv); |
|
|
325 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
326 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
327 | } |
|
|
328 | } |
|
|
329 | |
497 | |
330 | { |
498 | { |
331 | dSP; |
499 | dSP; |
|
|
500 | |
332 | CV *cv; |
501 | CV *cv; |
333 | |
502 | |
334 | /* now do the ugly restore mess */ |
503 | /* now do the ugly restore mess */ |
335 | while ((cv = (CV *)POPs)) |
504 | while (expect_true (cv = (CV *)POPs)) |
336 | { |
505 | { |
337 | put_padlist (cv); /* mark this padlist as available */ |
506 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
338 | CvDEPTH (cv) = PTR2IV (POPs); |
507 | CvDEPTH (cv) = PTR2IV (POPs); |
339 | CvPADLIST (cv) = (AV *)POPs; |
508 | CvPADLIST (cv) = (AV *)POPs; |
340 | } |
509 | } |
341 | |
510 | |
342 | PUTBACK; |
511 | PUTBACK; |
343 | } |
512 | } |
344 | } |
513 | } |
345 | |
514 | |
346 | static void |
515 | static void |
347 | save_perl (Coro__State c) |
516 | save_perl (pTHX_ Coro__State c) |
348 | { |
517 | { |
349 | { |
518 | { |
350 | dSP; |
519 | dSP; |
351 | I32 cxix = cxstack_ix; |
520 | I32 cxix = cxstack_ix; |
352 | PERL_CONTEXT *ccstk = cxstack; |
521 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
355 | /* |
524 | /* |
356 | * the worst thing you can imagine happens first - we have to save |
525 | * the worst thing you can imagine happens first - we have to save |
357 | * (and reinitialize) all cv's in the whole callchain :( |
526 | * (and reinitialize) all cv's in the whole callchain :( |
358 | */ |
527 | */ |
359 | |
528 | |
360 | EXTEND (SP, 3 + 1); |
|
|
361 | PUSHs (Nullsv); |
529 | XPUSHs (Nullsv); |
362 | /* this loop was inspired by pp_caller */ |
530 | /* this loop was inspired by pp_caller */ |
363 | for (;;) |
531 | for (;;) |
364 | { |
532 | { |
365 | while (cxix >= 0) |
533 | while (expect_true (cxix >= 0)) |
366 | { |
534 | { |
367 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
535 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
368 | |
536 | |
369 | if (CxTYPE (cx) == CXt_SUB) |
537 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
370 | { |
538 | { |
371 | CV *cv = cx->blk_sub.cv; |
539 | CV *cv = cx->blk_sub.cv; |
372 | |
540 | |
373 | if (CvDEPTH (cv)) |
541 | if (expect_true (CvDEPTH (cv))) |
374 | { |
542 | { |
375 | EXTEND (SP, 3); |
543 | EXTEND (SP, 3); |
376 | PUSHs ((SV *)CvPADLIST (cv)); |
544 | PUSHs ((SV *)CvPADLIST (cv)); |
377 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
545 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
378 | PUSHs ((SV *)cv); |
546 | PUSHs ((SV *)cv); |
379 | |
547 | |
380 | CvDEPTH (cv) = 0; |
548 | CvDEPTH (cv) = 0; |
381 | get_padlist (cv); |
549 | get_padlist (aTHX_ cv); |
382 | } |
550 | } |
383 | } |
551 | } |
384 | } |
552 | } |
385 | |
553 | |
386 | if (top_si->si_type == PERLSI_MAIN) |
554 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
387 | break; |
555 | break; |
388 | |
556 | |
389 | top_si = top_si->si_prev; |
557 | top_si = top_si->si_prev; |
390 | ccstk = top_si->si_cxstack; |
558 | ccstk = top_si->si_cxstack; |
391 | cxix = top_si->si_cxix; |
559 | cxix = top_si->si_cxix; |
392 | } |
560 | } |
393 | |
561 | |
394 | PUTBACK; |
562 | PUTBACK; |
395 | } |
563 | } |
396 | |
564 | |
397 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
565 | /* allocate some space on the context stack for our purposes */ |
398 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
566 | /* we manually unroll here, as usually 2 slots is enough */ |
399 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
567 | if (SLOT_COUNT >= 1) CXINC; |
400 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
568 | if (SLOT_COUNT >= 2) CXINC; |
|
|
569 | if (SLOT_COUNT >= 3) CXINC; |
|
|
570 | { |
|
|
571 | int i; |
|
|
572 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
573 | CXINC; |
|
|
574 | } |
|
|
575 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
401 | |
576 | |
|
|
577 | c->mainstack = PL_mainstack; |
|
|
578 | |
|
|
579 | { |
|
|
580 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
581 | |
|
|
582 | slot->defav = GvAV (PL_defgv); |
|
|
583 | slot->defsv = DEFSV; |
|
|
584 | slot->errsv = ERRSV; |
|
|
585 | slot->irsgv = GvSV (irsgv); |
|
|
586 | |
402 | #define VAR(name,type)c->name = PL_ ## name; |
587 | #define VAR(name,type) slot->name = PL_ ## name; |
403 | # include "state.h" |
588 | # include "state.h" |
404 | #undef VAR |
589 | #undef VAR |
|
|
590 | } |
405 | } |
591 | } |
406 | |
592 | |
407 | /* |
593 | /* |
408 | * allocate various perl stacks. This is an exact copy |
594 | * allocate various perl stacks. This is an exact copy |
409 | * of perl.c:init_stacks, except that it uses less memory |
595 | * of perl.c:init_stacks, except that it uses less memory |
410 | * on the (sometimes correct) assumption that coroutines do |
596 | * on the (sometimes correct) assumption that coroutines do |
411 | * not usually need a lot of stackspace. |
597 | * not usually need a lot of stackspace. |
412 | */ |
598 | */ |
413 | #if PREFER_PERL_FUNCTIONS |
599 | #if CORO_PREFER_PERL_FUNCTIONS |
414 | # define coro_init_stacks init_stacks |
600 | # define coro_init_stacks init_stacks |
415 | #else |
601 | #else |
416 | static void |
602 | static void |
417 | coro_init_stacks () |
603 | coro_init_stacks (pTHX) |
418 | { |
604 | { |
419 | PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); |
605 | PL_curstackinfo = new_stackinfo(32, 8); |
420 | PL_curstackinfo->si_type = PERLSI_MAIN; |
606 | PL_curstackinfo->si_type = PERLSI_MAIN; |
421 | PL_curstack = PL_curstackinfo->si_stack; |
607 | PL_curstack = PL_curstackinfo->si_stack; |
422 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
608 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
423 | |
609 | |
424 | PL_stack_base = AvARRAY(PL_curstack); |
610 | PL_stack_base = AvARRAY(PL_curstack); |
425 | PL_stack_sp = PL_stack_base; |
611 | PL_stack_sp = PL_stack_base; |
426 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
612 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
427 | |
613 | |
428 | New(50,PL_tmps_stack,128,SV*); |
614 | New(50,PL_tmps_stack,32,SV*); |
429 | PL_tmps_floor = -1; |
615 | PL_tmps_floor = -1; |
430 | PL_tmps_ix = -1; |
616 | PL_tmps_ix = -1; |
431 | PL_tmps_max = 128; |
617 | PL_tmps_max = 32; |
432 | |
618 | |
433 | New(54,PL_markstack,32,I32); |
619 | New(54,PL_markstack,16,I32); |
434 | PL_markstack_ptr = PL_markstack; |
620 | PL_markstack_ptr = PL_markstack; |
435 | PL_markstack_max = PL_markstack + 32; |
621 | PL_markstack_max = PL_markstack + 16; |
436 | |
622 | |
437 | #ifdef SET_MARK_OFFSET |
623 | #ifdef SET_MARK_OFFSET |
438 | SET_MARK_OFFSET; |
624 | SET_MARK_OFFSET; |
439 | #endif |
625 | #endif |
440 | |
626 | |
441 | New(54,PL_scopestack,32,I32); |
627 | New(54,PL_scopestack,8,I32); |
442 | PL_scopestack_ix = 0; |
628 | PL_scopestack_ix = 0; |
443 | PL_scopestack_max = 32; |
629 | PL_scopestack_max = 8; |
444 | |
630 | |
445 | New(54,PL_savestack,64,ANY); |
631 | New(54,PL_savestack,24,ANY); |
446 | PL_savestack_ix = 0; |
632 | PL_savestack_ix = 0; |
447 | PL_savestack_max = 64; |
633 | PL_savestack_max = 24; |
448 | |
634 | |
449 | #if !PERL_VERSION_ATLEAST (5,9,0) |
635 | #if !PERL_VERSION_ATLEAST (5,10,0) |
450 | New(54,PL_retstack,16,OP*); |
636 | New(54,PL_retstack,4,OP*); |
451 | PL_retstack_ix = 0; |
637 | PL_retstack_ix = 0; |
452 | PL_retstack_max = 16; |
638 | PL_retstack_max = 4; |
453 | #endif |
639 | #endif |
454 | } |
640 | } |
455 | #endif |
641 | #endif |
456 | |
642 | |
457 | /* |
643 | /* |
458 | * destroy the stacks, the callchain etc... |
644 | * destroy the stacks, the callchain etc... |
459 | */ |
645 | */ |
460 | static void |
646 | static void |
461 | coro_destroy_stacks () |
647 | coro_destruct_stacks (pTHX) |
462 | { |
648 | { |
463 | if (!IN_DESTRUCT) |
|
|
464 | { |
|
|
465 | /* restore all saved variables and stuff */ |
|
|
466 | LEAVE_SCOPE (0); |
|
|
467 | assert (PL_tmps_floor == -1); |
|
|
468 | |
|
|
469 | /* free all temporaries */ |
|
|
470 | FREETMPS; |
|
|
471 | assert (PL_tmps_ix == -1); |
|
|
472 | |
|
|
473 | POPSTACK_TO (PL_mainstack); |
|
|
474 | } |
|
|
475 | |
|
|
476 | while (PL_curstackinfo->si_next) |
649 | while (PL_curstackinfo->si_next) |
477 | PL_curstackinfo = PL_curstackinfo->si_next; |
650 | PL_curstackinfo = PL_curstackinfo->si_next; |
478 | |
651 | |
479 | while (PL_curstackinfo) |
652 | while (PL_curstackinfo) |
480 | { |
653 | { |
… | |
… | |
490 | |
663 | |
491 | Safefree (PL_tmps_stack); |
664 | Safefree (PL_tmps_stack); |
492 | Safefree (PL_markstack); |
665 | Safefree (PL_markstack); |
493 | Safefree (PL_scopestack); |
666 | Safefree (PL_scopestack); |
494 | Safefree (PL_savestack); |
667 | Safefree (PL_savestack); |
495 | #if !PERL_VERSION_ATLEAST (5,9,0) |
668 | #if !PERL_VERSION_ATLEAST (5,10,0) |
496 | Safefree (PL_retstack); |
669 | Safefree (PL_retstack); |
497 | #endif |
670 | #endif |
498 | } |
671 | } |
499 | |
672 | |
|
|
673 | static size_t |
|
|
674 | coro_rss (pTHX_ struct coro *coro) |
|
|
675 | { |
|
|
676 | size_t rss = sizeof (*coro); |
|
|
677 | |
|
|
678 | if (coro->mainstack) |
|
|
679 | { |
|
|
680 | perl_slots tmp_slot; |
|
|
681 | perl_slots *slot; |
|
|
682 | |
|
|
683 | if (coro->flags & CF_RUNNING) |
|
|
684 | { |
|
|
685 | slot = &tmp_slot; |
|
|
686 | |
|
|
687 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
688 | # include "state.h" |
|
|
689 | #undef VAR |
|
|
690 | } |
|
|
691 | else |
|
|
692 | slot = coro->slot; |
|
|
693 | |
|
|
694 | if (slot) |
|
|
695 | { |
|
|
696 | rss += sizeof (slot->curstackinfo); |
|
|
697 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
698 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
|
|
699 | rss += slot->tmps_max * sizeof (SV *); |
|
|
700 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
701 | rss += slot->scopestack_max * sizeof (I32); |
|
|
702 | rss += slot->savestack_max * sizeof (ANY); |
|
|
703 | |
|
|
704 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
705 | rss += slot->retstack_max * sizeof (OP *); |
|
|
706 | #endif |
|
|
707 | } |
|
|
708 | } |
|
|
709 | |
|
|
710 | return rss; |
|
|
711 | } |
|
|
712 | |
|
|
713 | /** coroutine stack handling ************************************************/ |
|
|
714 | |
|
|
715 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
716 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
717 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
718 | |
|
|
719 | /* apparently < 5.8.8 */ |
|
|
720 | #ifndef MgPV_nolen_const |
|
|
721 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
722 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
723 | (const char*)(mg)->mg_ptr) |
|
|
724 | #endif |
|
|
725 | |
|
|
726 | /* |
|
|
727 | * This overrides the default magic get method of %SIG elements. |
|
|
728 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
729 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
730 | * readback here. |
|
|
731 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
732 | * not expecting this to actually change the hook. This is a potential problem |
|
|
733 | * when a schedule happens then, but we ignore this. |
|
|
734 | */ |
|
|
735 | static int |
|
|
736 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
737 | { |
|
|
738 | const char *s = MgPV_nolen_const (mg); |
|
|
739 | |
|
|
740 | if (*s == '_') |
|
|
741 | { |
|
|
742 | SV **svp = 0; |
|
|
743 | |
|
|
744 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
745 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
746 | |
|
|
747 | if (svp) |
|
|
748 | { |
|
|
749 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
750 | return 0; |
|
|
751 | } |
|
|
752 | } |
|
|
753 | |
|
|
754 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
755 | } |
|
|
756 | |
|
|
757 | static int |
|
|
758 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
759 | { |
|
|
760 | const char *s = MgPV_nolen_const (mg); |
|
|
761 | |
|
|
762 | if (*s == '_') |
|
|
763 | { |
|
|
764 | SV **svp = 0; |
|
|
765 | |
|
|
766 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
767 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
768 | |
|
|
769 | if (svp) |
|
|
770 | { |
|
|
771 | SV *old = *svp; |
|
|
772 | *svp = 0; |
|
|
773 | SvREFCNT_dec (old); |
|
|
774 | return 0; |
|
|
775 | } |
|
|
776 | } |
|
|
777 | |
|
|
778 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
779 | } |
|
|
780 | |
|
|
781 | static int |
|
|
782 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
783 | { |
|
|
784 | const char *s = MgPV_nolen_const (mg); |
|
|
785 | |
|
|
786 | if (*s == '_') |
|
|
787 | { |
|
|
788 | SV **svp = 0; |
|
|
789 | |
|
|
790 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
791 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
792 | |
|
|
793 | if (svp) |
|
|
794 | { |
|
|
795 | SV *old = *svp; |
|
|
796 | *svp = newSVsv (sv); |
|
|
797 | SvREFCNT_dec (old); |
|
|
798 | return 0; |
|
|
799 | } |
|
|
800 | } |
|
|
801 | |
|
|
802 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
803 | } |
|
|
804 | |
500 | static void |
805 | static void |
501 | setup_coro (struct coro *coro) |
806 | coro_setup (pTHX_ struct coro *coro) |
502 | { |
807 | { |
503 | /* |
808 | /* |
504 | * emulate part of the perl startup here. |
809 | * emulate part of the perl startup here. |
505 | */ |
810 | */ |
506 | |
|
|
507 | coro_init_stacks (); |
811 | coro_init_stacks (aTHX); |
508 | |
812 | |
|
|
813 | PL_runops = RUNOPS_DEFAULT; |
509 | PL_curcop = &PL_compiling; |
814 | PL_curcop = &PL_compiling; |
510 | PL_in_eval = EVAL_NULL; |
815 | PL_in_eval = EVAL_NULL; |
|
|
816 | PL_comppad = 0; |
511 | PL_curpm = 0; |
817 | PL_curpm = 0; |
|
|
818 | PL_curpad = 0; |
512 | PL_localizing = 0; |
819 | PL_localizing = 0; |
513 | PL_dirty = 0; |
820 | PL_dirty = 0; |
514 | PL_restartop = 0; |
821 | PL_restartop = 0; |
|
|
822 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
823 | PL_parser = 0; |
|
|
824 | #endif |
|
|
825 | |
|
|
826 | /* recreate the die/warn hooks */ |
|
|
827 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
828 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
|
|
829 | |
|
|
830 | GvSV (PL_defgv) = newSV (0); |
|
|
831 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
832 | GvSV (PL_errgv) = newSV (0); |
|
|
833 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
834 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
835 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
515 | |
836 | |
516 | { |
837 | { |
517 | dSP; |
838 | dSP; |
518 | LOGOP myop; |
839 | LOGOP myop; |
519 | |
840 | |
520 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
521 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
522 | |
|
|
523 | Zero (&myop, 1, LOGOP); |
841 | Zero (&myop, 1, LOGOP); |
524 | myop.op_next = Nullop; |
842 | myop.op_next = Nullop; |
525 | myop.op_flags = OPf_WANT_VOID; |
843 | myop.op_flags = OPf_WANT_VOID; |
526 | |
844 | |
527 | PUSHMARK (SP); |
845 | PUSHMARK (SP); |
528 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
846 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
529 | PUTBACK; |
847 | PUTBACK; |
530 | PL_op = (OP *)&myop; |
848 | PL_op = (OP *)&myop; |
531 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
849 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
532 | SPAGAIN; |
850 | SPAGAIN; |
533 | } |
851 | } |
534 | |
852 | |
535 | ENTER; /* necessary e.g. for dounwind */ |
853 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
854 | * likely was suspended in set_stacklevel, called from entersub. |
|
|
855 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
856 | * so we ENTER here for symmetry |
|
|
857 | */ |
|
|
858 | ENTER; |
536 | } |
859 | } |
537 | |
860 | |
538 | static void |
861 | static void |
|
|
862 | coro_destruct (pTHX_ struct coro *coro) |
|
|
863 | { |
|
|
864 | if (!IN_DESTRUCT) |
|
|
865 | { |
|
|
866 | /* restore all saved variables and stuff */ |
|
|
867 | LEAVE_SCOPE (0); |
|
|
868 | assert (PL_tmps_floor == -1); |
|
|
869 | |
|
|
870 | /* free all temporaries */ |
|
|
871 | FREETMPS; |
|
|
872 | assert (PL_tmps_ix == -1); |
|
|
873 | |
|
|
874 | /* unwind all extra stacks */ |
|
|
875 | POPSTACK_TO (PL_mainstack); |
|
|
876 | |
|
|
877 | /* unwind main stack */ |
|
|
878 | dounwind (-1); |
|
|
879 | } |
|
|
880 | |
|
|
881 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
882 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
883 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
884 | SvREFCNT_dec (PL_defoutgv); |
|
|
885 | SvREFCNT_dec (PL_rs); |
|
|
886 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
887 | |
|
|
888 | SvREFCNT_dec (PL_diehook); |
|
|
889 | SvREFCNT_dec (PL_warnhook); |
|
|
890 | |
|
|
891 | SvREFCNT_dec (coro->saved_deffh); |
|
|
892 | SvREFCNT_dec (coro->throw); |
|
|
893 | |
|
|
894 | coro_destruct_stacks (aTHX); |
|
|
895 | } |
|
|
896 | |
|
|
897 | static void |
539 | free_coro_mortal () |
898 | free_coro_mortal (pTHX) |
540 | { |
899 | { |
541 | if (coro_mortal) |
900 | if (expect_true (coro_mortal)) |
542 | { |
901 | { |
543 | SvREFCNT_dec (coro_mortal); |
902 | SvREFCNT_dec (coro_mortal); |
544 | coro_mortal = 0; |
903 | coro_mortal = 0; |
545 | } |
904 | } |
546 | } |
905 | } |
547 | |
906 | |
|
|
907 | static int |
|
|
908 | runops_trace (pTHX) |
|
|
909 | { |
|
|
910 | COP *oldcop = 0; |
|
|
911 | int oldcxix = -2; |
|
|
912 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
913 | coro_cctx *cctx = coro->cctx; |
|
|
914 | |
|
|
915 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
916 | { |
|
|
917 | PERL_ASYNC_CHECK (); |
|
|
918 | |
|
|
919 | if (cctx->flags & CC_TRACE_ALL) |
|
|
920 | { |
|
|
921 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
922 | { |
|
|
923 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
924 | SV **bot, **top; |
|
|
925 | AV *av = newAV (); /* return values */ |
|
|
926 | SV **cb; |
|
|
927 | dSP; |
|
|
928 | |
|
|
929 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
930 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
931 | if (isGV (gv)) |
|
|
932 | gv_efullname3 (fullname, gv, 0); |
|
|
933 | |
|
|
934 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
935 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
936 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
937 | : bot; |
|
|
938 | |
|
|
939 | av_extend (av, top - bot); |
|
|
940 | while (bot < top) |
|
|
941 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
|
|
942 | |
|
|
943 | PL_runops = RUNOPS_DEFAULT; |
|
|
944 | ENTER; |
|
|
945 | SAVETMPS; |
|
|
946 | EXTEND (SP, 3); |
|
|
947 | PUSHMARK (SP); |
|
|
948 | PUSHs (&PL_sv_no); |
|
|
949 | PUSHs (fullname); |
|
|
950 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
951 | PUTBACK; |
|
|
952 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
953 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
954 | SPAGAIN; |
|
|
955 | FREETMPS; |
|
|
956 | LEAVE; |
|
|
957 | PL_runops = runops_trace; |
|
|
958 | } |
|
|
959 | |
|
|
960 | if (oldcop != PL_curcop) |
|
|
961 | { |
|
|
962 | oldcop = PL_curcop; |
|
|
963 | |
|
|
964 | if (PL_curcop != &PL_compiling) |
|
|
965 | { |
|
|
966 | SV **cb; |
|
|
967 | |
|
|
968 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
969 | { |
|
|
970 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
971 | |
|
|
972 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
973 | { |
|
|
974 | runops_proc_t old_runops = PL_runops; |
|
|
975 | dSP; |
|
|
976 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
977 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
978 | |
|
|
979 | if (isGV (gv)) |
|
|
980 | gv_efullname3 (fullname, gv, 0); |
|
|
981 | |
|
|
982 | PL_runops = RUNOPS_DEFAULT; |
|
|
983 | ENTER; |
|
|
984 | SAVETMPS; |
|
|
985 | EXTEND (SP, 3); |
|
|
986 | PUSHMARK (SP); |
|
|
987 | PUSHs (&PL_sv_yes); |
|
|
988 | PUSHs (fullname); |
|
|
989 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
990 | PUTBACK; |
|
|
991 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
992 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
993 | SPAGAIN; |
|
|
994 | FREETMPS; |
|
|
995 | LEAVE; |
|
|
996 | PL_runops = runops_trace; |
|
|
997 | } |
|
|
998 | |
|
|
999 | oldcxix = cxstack_ix; |
|
|
1000 | } |
|
|
1001 | |
|
|
1002 | if (cctx->flags & CC_TRACE_LINE) |
|
|
1003 | { |
|
|
1004 | dSP; |
|
|
1005 | |
|
|
1006 | PL_runops = RUNOPS_DEFAULT; |
|
|
1007 | ENTER; |
|
|
1008 | SAVETMPS; |
|
|
1009 | EXTEND (SP, 3); |
|
|
1010 | PL_runops = RUNOPS_DEFAULT; |
|
|
1011 | PUSHMARK (SP); |
|
|
1012 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
1013 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
1014 | PUTBACK; |
|
|
1015 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
1016 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1017 | SPAGAIN; |
|
|
1018 | FREETMPS; |
|
|
1019 | LEAVE; |
|
|
1020 | PL_runops = runops_trace; |
|
|
1021 | } |
|
|
1022 | } |
|
|
1023 | } |
|
|
1024 | } |
|
|
1025 | } |
|
|
1026 | |
|
|
1027 | TAINT_NOT; |
|
|
1028 | return 0; |
|
|
1029 | } |
|
|
1030 | |
548 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1031 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
1032 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
1033 | /* during execution of a perl program */ |
549 | static void NOINLINE |
1034 | static void NOINLINE |
550 | prepare_cctx (coro_cctx *cctx) |
1035 | cctx_prepare (pTHX_ coro_cctx *cctx) |
551 | { |
1036 | { |
552 | dSP; |
1037 | dSP; |
553 | LOGOP myop; |
1038 | LOGOP myop; |
|
|
1039 | |
|
|
1040 | PL_top_env = &PL_start_env; |
|
|
1041 | |
|
|
1042 | if (cctx->flags & CC_TRACE) |
|
|
1043 | PL_runops = runops_trace; |
554 | |
1044 | |
555 | Zero (&myop, 1, LOGOP); |
1045 | Zero (&myop, 1, LOGOP); |
556 | myop.op_next = PL_op; |
1046 | myop.op_next = PL_op; |
557 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1047 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
558 | |
1048 | |
… | |
… | |
564 | PL_op = (OP *)&myop; |
1054 | PL_op = (OP *)&myop; |
565 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1055 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
566 | SPAGAIN; |
1056 | SPAGAIN; |
567 | } |
1057 | } |
568 | |
1058 | |
|
|
1059 | /* |
|
|
1060 | * this is a _very_ stripped down perl interpreter ;) |
|
|
1061 | */ |
569 | static void |
1062 | static void |
570 | coro_run (void *arg) |
1063 | cctx_run (void *arg) |
571 | { |
1064 | { |
|
|
1065 | #ifdef USE_ITHREADS |
|
|
1066 | # if CORO_PTHREAD |
|
|
1067 | PERL_SET_CONTEXT (coro_thx); |
|
|
1068 | # endif |
|
|
1069 | #endif |
|
|
1070 | { |
|
|
1071 | dTHX; |
|
|
1072 | |
572 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1073 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
573 | UNLOCK; |
1074 | UNLOCK; |
574 | |
1075 | |
575 | /* |
1076 | /* we now skip the entersub that lead to transfer() */ |
576 | * this is a _very_ stripped down perl interpreter ;) |
1077 | PL_op = PL_op->op_next; |
577 | */ |
|
|
578 | PL_top_env = &PL_start_env; |
|
|
579 | |
1078 | |
580 | /* inject call to cctx_init */ |
1079 | /* inject a fake subroutine call to cctx_init */ |
581 | prepare_cctx ((coro_cctx *)arg); |
1080 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
582 | |
1081 | |
583 | /* somebody will hit me for both perl_run and PL_restartop */ |
1082 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
584 | PL_restartop = PL_op; |
1083 | PL_restartop = PL_op; |
585 | perl_run (PL_curinterp); |
1084 | perl_run (PL_curinterp); |
586 | |
1085 | |
587 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
1086 | /* |
588 | abort (); |
1087 | * If perl-run returns we assume exit() was being called or the coro |
|
|
1088 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
1089 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
1090 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
1091 | * coroutine as Coro has no such concept |
|
|
1092 | */ |
|
|
1093 | PL_top_env = main_top_env; |
|
|
1094 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1095 | } |
589 | } |
1096 | } |
590 | |
1097 | |
591 | static coro_cctx * |
1098 | static coro_cctx * |
592 | cctx_new () |
1099 | cctx_new () |
593 | { |
1100 | { |
594 | coro_cctx *cctx; |
1101 | coro_cctx *cctx; |
595 | |
1102 | |
596 | ++cctx_count; |
1103 | ++cctx_count; |
597 | |
|
|
598 | Newz (0, cctx, 1, coro_cctx); |
1104 | New (0, cctx, 1, coro_cctx); |
|
|
1105 | |
|
|
1106 | cctx->gen = cctx_gen; |
|
|
1107 | cctx->flags = 0; |
|
|
1108 | |
|
|
1109 | return cctx; |
|
|
1110 | } |
|
|
1111 | |
|
|
1112 | /* create a new cctx only suitable as source */ |
|
|
1113 | static coro_cctx * |
|
|
1114 | cctx_new_empty () |
|
|
1115 | { |
|
|
1116 | coro_cctx *cctx = cctx_new (); |
|
|
1117 | |
|
|
1118 | cctx->sptr = 0; |
|
|
1119 | cctx->idle_sp = 0; /* should never be a valid address */ |
|
|
1120 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1121 | |
|
|
1122 | return cctx; |
|
|
1123 | } |
|
|
1124 | |
|
|
1125 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1126 | static coro_cctx * |
|
|
1127 | cctx_new_run () |
|
|
1128 | { |
|
|
1129 | coro_cctx *cctx = cctx_new (); |
|
|
1130 | void *stack_start; |
|
|
1131 | size_t stack_size; |
599 | |
1132 | |
600 | #if HAVE_MMAP |
1133 | #if HAVE_MMAP |
601 | |
|
|
602 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
1134 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
603 | /* mmap supposedly does allocate-on-write for us */ |
1135 | /* mmap supposedly does allocate-on-write for us */ |
604 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1136 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
605 | |
1137 | |
606 | if (cctx->sptr == (void *)-1) |
1138 | if (cctx->sptr != (void *)-1) |
607 | { |
|
|
608 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
609 | _exit (EXIT_FAILURE); |
|
|
610 | } |
1139 | { |
611 | |
|
|
612 | # if STACKGUARD |
1140 | # if CORO_STACKGUARD |
613 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
1141 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
614 | # endif |
1142 | # endif |
|
|
1143 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
1144 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
1145 | cctx->flags |= CC_MAPPED; |
|
|
1146 | } |
|
|
1147 | else |
|
|
1148 | #endif |
|
|
1149 | { |
|
|
1150 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
|
|
1151 | New (0, cctx->sptr, cctx_stacksize, long); |
615 | |
1152 | |
616 | #else |
|
|
617 | |
|
|
618 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
|
|
619 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
620 | |
|
|
621 | if (!cctx->sptr) |
1153 | if (!cctx->sptr) |
622 | { |
1154 | { |
623 | perror ("FATAL: unable to malloc stack for coroutine"); |
1155 | perror ("FATAL: unable to allocate stack for coroutine"); |
624 | _exit (EXIT_FAILURE); |
1156 | _exit (EXIT_FAILURE); |
625 | } |
1157 | } |
626 | |
1158 | |
627 | #endif |
1159 | stack_start = cctx->sptr; |
|
|
1160 | stack_size = cctx->ssize; |
|
|
1161 | } |
628 | |
1162 | |
629 | #if USE_VALGRIND |
1163 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
630 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
1164 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
631 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
632 | cctx->ssize + (char *)cctx->sptr |
|
|
633 | ); |
|
|
634 | #endif |
|
|
635 | |
|
|
636 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
|
|
637 | |
1165 | |
638 | return cctx; |
1166 | return cctx; |
639 | } |
1167 | } |
640 | |
1168 | |
641 | static void |
1169 | static void |
… | |
… | |
643 | { |
1171 | { |
644 | if (!cctx) |
1172 | if (!cctx) |
645 | return; |
1173 | return; |
646 | |
1174 | |
647 | --cctx_count; |
1175 | --cctx_count; |
|
|
1176 | coro_destroy (&cctx->cctx); |
648 | |
1177 | |
|
|
1178 | /* coro_transfer creates new, empty cctx's */ |
|
|
1179 | if (cctx->sptr) |
|
|
1180 | { |
649 | #if USE_VALGRIND |
1181 | #if CORO_USE_VALGRIND |
650 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1182 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
651 | #endif |
1183 | #endif |
652 | |
1184 | |
653 | #if HAVE_MMAP |
1185 | #if HAVE_MMAP |
|
|
1186 | if (cctx->flags & CC_MAPPED) |
654 | munmap (cctx->sptr, cctx->ssize); |
1187 | munmap (cctx->sptr, cctx->ssize); |
655 | #else |
1188 | else |
|
|
1189 | #endif |
656 | Safefree (cctx->sptr); |
1190 | Safefree (cctx->sptr); |
657 | #endif |
1191 | } |
658 | |
1192 | |
659 | Safefree (cctx); |
1193 | Safefree (cctx); |
660 | } |
1194 | } |
661 | |
1195 | |
|
|
1196 | /* wether this cctx should be destructed */ |
|
|
1197 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
|
|
1198 | |
662 | static coro_cctx * |
1199 | static coro_cctx * |
663 | cctx_get () |
1200 | cctx_get (pTHX) |
664 | { |
1201 | { |
665 | coro_cctx *cctx; |
1202 | while (expect_true (cctx_first)) |
666 | |
|
|
667 | if (cctx_first) |
|
|
668 | { |
1203 | { |
669 | cctx = cctx_first; |
1204 | coro_cctx *cctx = cctx_first; |
670 | cctx_first = cctx->next; |
1205 | cctx_first = cctx->next; |
671 | --cctx_idle; |
1206 | --cctx_idle; |
672 | } |
1207 | |
673 | else |
1208 | if (expect_true (!CCTX_EXPIRED (cctx))) |
674 | { |
1209 | return cctx; |
675 | cctx = cctx_new (); |
1210 | |
676 | PL_op = PL_op->op_next; |
1211 | cctx_destroy (cctx); |
677 | } |
1212 | } |
678 | |
1213 | |
679 | return cctx; |
1214 | return cctx_new_run (); |
680 | } |
1215 | } |
681 | |
1216 | |
682 | static void |
1217 | static void |
683 | cctx_put (coro_cctx *cctx) |
1218 | cctx_put (coro_cctx *cctx) |
684 | { |
1219 | { |
|
|
1220 | assert (("cctx_put called on non-initialised cctx", cctx->sptr)); |
|
|
1221 | |
685 | /* free another cctx if overlimit */ |
1222 | /* free another cctx if overlimit */ |
686 | if (cctx_idle >= MAX_IDLE_CCTX) |
1223 | if (expect_false (cctx_idle >= cctx_max_idle)) |
687 | { |
1224 | { |
688 | coro_cctx *first = cctx_first; |
1225 | coro_cctx *first = cctx_first; |
689 | cctx_first = first->next; |
1226 | cctx_first = first->next; |
690 | --cctx_idle; |
1227 | --cctx_idle; |
691 | |
1228 | |
692 | assert (!first->inuse); |
|
|
693 | cctx_destroy (first); |
1229 | cctx_destroy (first); |
694 | } |
1230 | } |
695 | |
1231 | |
696 | ++cctx_idle; |
1232 | ++cctx_idle; |
697 | cctx->next = cctx_first; |
1233 | cctx->next = cctx_first; |
698 | cctx_first = cctx; |
1234 | cctx_first = cctx; |
699 | } |
1235 | } |
700 | |
1236 | |
701 | /* never call directly, always through the coro_state_transfer global variable */ |
1237 | /** coroutine switching *****************************************************/ |
|
|
1238 | |
|
|
1239 | static void |
|
|
1240 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1241 | { |
|
|
1242 | if (expect_true (prev != next)) |
|
|
1243 | { |
|
|
1244 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1245 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
1246 | |
|
|
1247 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1248 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1249 | |
|
|
1250 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1251 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
1252 | |
|
|
1253 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
1254 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
1255 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
|
|
1256 | #endif |
|
|
1257 | } |
|
|
1258 | } |
|
|
1259 | |
|
|
1260 | /* always use the TRANSFER macro */ |
702 | static void NOINLINE |
1261 | static void NOINLINE |
703 | transfer (struct coro *prev, struct coro *next) |
1262 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
704 | { |
1263 | { |
705 | dSTACKLEVEL; |
1264 | dSTACKLEVEL; |
706 | |
1265 | |
707 | /* sometimes transfer is only called to set idle_sp */ |
1266 | /* sometimes transfer is only called to set idle_sp */ |
708 | if (!next) |
1267 | if (expect_false (!next)) |
709 | { |
1268 | { |
710 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1269 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
711 | assert (((coro_cctx *)prev)->top_env = PL_top_env); /* just for the side effetc when assert is enabled */ |
1270 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
712 | } |
|
|
713 | else if (prev != next) |
|
|
714 | { |
1271 | } |
|
|
1272 | else if (expect_true (prev != next)) |
|
|
1273 | { |
|
|
1274 | static volatile int has_throw; |
715 | coro_cctx *prev__cctx; |
1275 | coro_cctx *prev__cctx; |
716 | |
1276 | |
717 | if (prev->flags & CF_NEW) |
1277 | if (expect_false (prev->flags & CF_NEW)) |
718 | { |
1278 | { |
719 | /* create a new empty context */ |
1279 | /* create a new empty/source context */ |
720 | Newz (0, prev->cctx, 1, coro_cctx); |
1280 | prev->cctx = cctx_new_empty (); |
721 | prev->cctx->inuse = 1; |
|
|
722 | prev->flags &= ~CF_NEW; |
1281 | prev->flags &= ~CF_NEW; |
723 | prev->flags |= CF_RUNNING; |
1282 | prev->flags |= CF_RUNNING; |
724 | } |
1283 | } |
725 | |
1284 | |
726 | /*TODO: must not croak here */ |
|
|
727 | if (!prev->flags & CF_RUNNING) |
|
|
728 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
729 | |
|
|
730 | if (next->flags & CF_RUNNING) |
|
|
731 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
732 | |
|
|
733 | prev->flags &= ~CF_RUNNING; |
1285 | prev->flags &= ~CF_RUNNING; |
734 | next->flags |= CF_RUNNING; |
1286 | next->flags |= CF_RUNNING; |
735 | |
1287 | |
736 | LOCK; |
1288 | LOCK; |
737 | |
1289 | |
|
|
1290 | /* first get rid of the old state */ |
|
|
1291 | save_perl (aTHX_ prev); |
|
|
1292 | |
738 | if (next->flags & CF_NEW) |
1293 | if (expect_false (next->flags & CF_NEW)) |
739 | { |
1294 | { |
740 | /* need to start coroutine */ |
1295 | /* need to start coroutine */ |
741 | next->flags &= ~CF_NEW; |
1296 | next->flags &= ~CF_NEW; |
742 | /* first get rid of the old state */ |
|
|
743 | save_perl (prev); |
|
|
744 | /* setup coroutine call */ |
1297 | /* setup coroutine call */ |
745 | setup_coro (next); |
1298 | coro_setup (aTHX_ next); |
746 | /* need a new stack */ |
|
|
747 | assert (!next->cctx); |
|
|
748 | } |
1299 | } |
749 | else |
1300 | else |
750 | { |
|
|
751 | /* coroutine already started */ |
|
|
752 | save_perl (prev); |
|
|
753 | load_perl (next); |
1301 | load_perl (aTHX_ next); |
754 | } |
|
|
755 | |
1302 | |
756 | prev__cctx = prev->cctx; |
1303 | prev__cctx = prev->cctx; |
757 | |
1304 | |
758 | /* possibly "free" the cctx */ |
1305 | /* possibly "free" the cctx */ |
|
|
1306 | if (expect_true ( |
759 | if (prev__cctx->idle_sp == STACKLEVEL) |
1307 | prev__cctx->idle_sp == STACKLEVEL |
|
|
1308 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1309 | && !force_cctx |
|
|
1310 | )) |
760 | { |
1311 | { |
761 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1312 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
762 | assert (PL_top_env == prev__cctx->top_env); |
1313 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
763 | |
1314 | |
764 | prev->cctx = 0; |
1315 | prev->cctx = 0; |
765 | |
1316 | |
|
|
1317 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1318 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1319 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1320 | if (!next->cctx) |
|
|
1321 | next->cctx = cctx_get (aTHX); |
|
|
1322 | |
766 | cctx_put (prev__cctx); |
1323 | cctx_put (prev__cctx); |
767 | prev__cctx->inuse = 0; |
|
|
768 | } |
1324 | } |
769 | |
1325 | |
|
|
1326 | ++next->usecount; |
|
|
1327 | |
770 | if (!next->cctx) |
1328 | if (expect_true (!next->cctx)) |
771 | { |
|
|
772 | next->cctx = cctx_get (); |
1329 | next->cctx = cctx_get (aTHX); |
773 | assert (!next->cctx->inuse); |
|
|
774 | next->cctx->inuse = 1; |
|
|
775 | } |
|
|
776 | |
1330 | |
|
|
1331 | has_throw = !!next->throw; |
|
|
1332 | |
777 | if (prev__cctx != next->cctx) |
1333 | if (expect_false (prev__cctx != next->cctx)) |
778 | { |
1334 | { |
779 | prev__cctx->top_env = PL_top_env; |
1335 | prev__cctx->top_env = PL_top_env; |
780 | PL_top_env = next->cctx->top_env; |
1336 | PL_top_env = next->cctx->top_env; |
781 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1337 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
782 | } |
1338 | } |
783 | |
1339 | |
784 | free_coro_mortal (); |
1340 | free_coro_mortal (aTHX); |
785 | |
|
|
786 | UNLOCK; |
1341 | UNLOCK; |
|
|
1342 | |
|
|
1343 | if (expect_false (has_throw)) |
|
|
1344 | { |
|
|
1345 | struct coro *coro = SvSTATE (coro_current); |
|
|
1346 | |
|
|
1347 | if (coro->throw) |
|
|
1348 | { |
|
|
1349 | SV *exception = coro->throw; |
|
|
1350 | coro->throw = 0; |
|
|
1351 | sv_setsv (ERRSV, exception); |
|
|
1352 | croak (0); |
|
|
1353 | } |
|
|
1354 | } |
787 | } |
1355 | } |
788 | } |
1356 | } |
789 | |
1357 | |
790 | struct transfer_args |
1358 | struct transfer_args |
791 | { |
1359 | { |
792 | struct coro *prev, *next; |
1360 | struct coro *prev, *next; |
793 | }; |
1361 | }; |
794 | |
1362 | |
|
|
1363 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
795 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next) |
1364 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
796 | |
1365 | |
|
|
1366 | /** high level stuff ********************************************************/ |
|
|
1367 | |
797 | static void |
1368 | static int |
798 | coro_state_destroy (struct coro *coro) |
1369 | coro_state_destroy (pTHX_ struct coro *coro) |
799 | { |
1370 | { |
800 | if (coro->refcnt--) |
1371 | if (coro->flags & CF_DESTROYED) |
801 | return; |
1372 | return 0; |
|
|
1373 | |
|
|
1374 | coro->flags |= CF_DESTROYED; |
|
|
1375 | |
|
|
1376 | if (coro->flags & CF_READY) |
|
|
1377 | { |
|
|
1378 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1379 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1380 | LOCK; |
|
|
1381 | --coro_nready; |
|
|
1382 | UNLOCK; |
|
|
1383 | } |
|
|
1384 | else |
|
|
1385 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
802 | |
1386 | |
803 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1387 | if (coro->mainstack && coro->mainstack != main_mainstack) |
804 | { |
1388 | { |
805 | struct coro temp; |
1389 | struct coro temp; |
806 | Zero (&temp, 1, struct coro); |
|
|
807 | temp.save = CORO_SAVE_ALL; |
|
|
808 | |
1390 | |
809 | if (coro->flags & CF_RUNNING) |
1391 | if (coro->flags & CF_RUNNING) |
810 | croak ("FATAL: tried to destroy currently running coroutine"); |
1392 | croak ("FATAL: tried to destroy currently running coroutine"); |
811 | |
1393 | |
812 | save_perl (&temp); |
1394 | save_perl (aTHX_ &temp); |
813 | load_perl (coro); |
1395 | load_perl (aTHX_ coro); |
814 | |
1396 | |
815 | coro_destroy_stacks (); |
1397 | coro_destruct (aTHX_ coro); |
816 | |
1398 | |
817 | load_perl (&temp); /* this will get rid of defsv etc.. */ |
1399 | load_perl (aTHX_ &temp); |
818 | |
1400 | |
819 | coro->mainstack = 0; |
1401 | coro->slot = 0; |
820 | } |
1402 | } |
821 | |
1403 | |
822 | cctx_destroy (coro->cctx); |
1404 | cctx_destroy (coro->cctx); |
823 | SvREFCNT_dec (coro->args); |
1405 | SvREFCNT_dec (coro->args); |
824 | Safefree (coro); |
1406 | |
|
|
1407 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1408 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1409 | if (coro == coro_first) coro_first = coro->next; |
|
|
1410 | |
|
|
1411 | return 1; |
825 | } |
1412 | } |
826 | |
1413 | |
827 | static int |
1414 | static int |
828 | coro_state_clear (pTHX_ SV *sv, MAGIC *mg) |
1415 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
829 | { |
1416 | { |
830 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1417 | struct coro *coro = (struct coro *)mg->mg_ptr; |
831 | mg->mg_ptr = 0; |
1418 | mg->mg_ptr = 0; |
832 | |
1419 | |
|
|
1420 | coro->hv = 0; |
|
|
1421 | |
|
|
1422 | if (--coro->refcnt < 0) |
|
|
1423 | { |
833 | coro_state_destroy (coro); |
1424 | coro_state_destroy (aTHX_ coro); |
|
|
1425 | Safefree (coro); |
|
|
1426 | } |
834 | |
1427 | |
835 | return 0; |
1428 | return 0; |
836 | } |
1429 | } |
837 | |
1430 | |
838 | static int |
1431 | static int |
… | |
… | |
845 | return 0; |
1438 | return 0; |
846 | } |
1439 | } |
847 | |
1440 | |
848 | static MGVTBL coro_state_vtbl = { |
1441 | static MGVTBL coro_state_vtbl = { |
849 | 0, 0, 0, 0, |
1442 | 0, 0, 0, 0, |
850 | coro_state_clear, |
1443 | coro_state_free, |
851 | 0, |
1444 | 0, |
852 | #ifdef MGf_DUP |
1445 | #ifdef MGf_DUP |
853 | coro_state_dup, |
1446 | coro_state_dup, |
854 | #else |
1447 | #else |
855 | # define MGf_DUP 0 |
1448 | # define MGf_DUP 0 |
856 | #endif |
1449 | #endif |
857 | }; |
1450 | }; |
858 | |
1451 | |
859 | static struct coro * |
|
|
860 | SvSTATE (SV *coro) |
|
|
861 | { |
|
|
862 | HV *stash; |
|
|
863 | MAGIC *mg; |
|
|
864 | |
|
|
865 | if (SvROK (coro)) |
|
|
866 | coro = SvRV (coro); |
|
|
867 | |
|
|
868 | stash = SvSTASH (coro); |
|
|
869 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
870 | { |
|
|
871 | /* very slow, but rare, check */ |
|
|
872 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
873 | croak ("Coro::State object required"); |
|
|
874 | } |
|
|
875 | |
|
|
876 | mg = SvMAGIC (coro); |
|
|
877 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
878 | return (struct coro *)mg->mg_ptr; |
|
|
879 | } |
|
|
880 | |
|
|
881 | static void |
1452 | static void |
882 | prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1453 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
883 | { |
1454 | { |
884 | ta->prev = SvSTATE (prev_sv); |
1455 | ta->prev = SvSTATE (prev_sv); |
885 | ta->next = SvSTATE (next_sv); |
1456 | ta->next = SvSTATE (next_sv); |
|
|
1457 | TRANSFER_CHECK (*ta); |
886 | } |
1458 | } |
887 | |
1459 | |
888 | static void |
1460 | static void |
889 | api_transfer (SV *prev_sv, SV *next_sv) |
1461 | api_transfer (SV *prev_sv, SV *next_sv) |
890 | { |
1462 | { |
|
|
1463 | dTHX; |
891 | struct transfer_args ta; |
1464 | struct transfer_args ta; |
892 | |
1465 | |
893 | prepare_transfer (&ta, prev_sv, next_sv); |
1466 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
894 | TRANSFER (ta); |
1467 | TRANSFER (ta, 1); |
895 | } |
|
|
896 | |
|
|
897 | static int |
|
|
898 | api_save (SV *coro_sv, int new_save) |
|
|
899 | { |
|
|
900 | struct coro *coro = SvSTATE (coro_sv); |
|
|
901 | int old_save = coro->save; |
|
|
902 | |
|
|
903 | if (new_save >= 0) |
|
|
904 | coro->save = new_save; |
|
|
905 | |
|
|
906 | return old_save; |
|
|
907 | } |
1468 | } |
908 | |
1469 | |
909 | /** Coro ********************************************************************/ |
1470 | /** Coro ********************************************************************/ |
910 | |
1471 | |
911 | #define PRIO_MAX 3 |
|
|
912 | #define PRIO_HIGH 1 |
|
|
913 | #define PRIO_NORMAL 0 |
|
|
914 | #define PRIO_LOW -1 |
|
|
915 | #define PRIO_IDLE -3 |
|
|
916 | #define PRIO_MIN -4 |
|
|
917 | |
|
|
918 | /* for Coro.pm */ |
|
|
919 | static SV *coro_current; |
|
|
920 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
921 | static int coro_nready; |
|
|
922 | |
|
|
923 | static void |
1472 | static void |
924 | coro_enq (SV *coro_sv) |
1473 | coro_enq (pTHX_ SV *coro_sv) |
925 | { |
1474 | { |
926 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1475 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
927 | coro_nready++; |
|
|
928 | } |
1476 | } |
929 | |
1477 | |
930 | static SV * |
1478 | static SV * |
931 | coro_deq (int min_prio) |
1479 | coro_deq (pTHX) |
932 | { |
1480 | { |
933 | int prio = PRIO_MAX - PRIO_MIN; |
1481 | int prio; |
934 | |
1482 | |
935 | min_prio -= PRIO_MIN; |
|
|
936 | if (min_prio < 0) |
|
|
937 | min_prio = 0; |
|
|
938 | |
|
|
939 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1483 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
940 | if (AvFILLp (coro_ready [prio]) >= 0) |
1484 | if (AvFILLp (coro_ready [prio]) >= 0) |
941 | { |
|
|
942 | coro_nready--; |
|
|
943 | return av_shift (coro_ready [prio]); |
1485 | return av_shift (coro_ready [prio]); |
944 | } |
|
|
945 | |
1486 | |
946 | return 0; |
1487 | return 0; |
947 | } |
1488 | } |
948 | |
1489 | |
949 | static int |
1490 | static int |
950 | api_ready (SV *coro_sv) |
1491 | api_ready (SV *coro_sv) |
951 | { |
1492 | { |
|
|
1493 | dTHX; |
952 | struct coro *coro; |
1494 | struct coro *coro; |
|
|
1495 | SV *sv_hook; |
|
|
1496 | void (*xs_hook)(void); |
953 | |
1497 | |
954 | if (SvROK (coro_sv)) |
1498 | if (SvROK (coro_sv)) |
955 | coro_sv = SvRV (coro_sv); |
1499 | coro_sv = SvRV (coro_sv); |
956 | |
1500 | |
957 | coro = SvSTATE (coro_sv); |
1501 | coro = SvSTATE (coro_sv); |
… | |
… | |
960 | return 0; |
1504 | return 0; |
961 | |
1505 | |
962 | coro->flags |= CF_READY; |
1506 | coro->flags |= CF_READY; |
963 | |
1507 | |
964 | LOCK; |
1508 | LOCK; |
|
|
1509 | |
|
|
1510 | sv_hook = coro_nready ? 0 : coro_readyhook; |
|
|
1511 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1512 | |
965 | coro_enq (SvREFCNT_inc (coro_sv)); |
1513 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
|
|
1514 | ++coro_nready; |
|
|
1515 | |
966 | UNLOCK; |
1516 | UNLOCK; |
|
|
1517 | |
|
|
1518 | if (sv_hook) |
|
|
1519 | { |
|
|
1520 | dSP; |
|
|
1521 | |
|
|
1522 | ENTER; |
|
|
1523 | SAVETMPS; |
|
|
1524 | |
|
|
1525 | PUSHMARK (SP); |
|
|
1526 | PUTBACK; |
|
|
1527 | call_sv (sv_hook, G_DISCARD); |
|
|
1528 | SPAGAIN; |
|
|
1529 | |
|
|
1530 | FREETMPS; |
|
|
1531 | LEAVE; |
|
|
1532 | } |
|
|
1533 | |
|
|
1534 | if (xs_hook) |
|
|
1535 | xs_hook (); |
967 | |
1536 | |
968 | return 1; |
1537 | return 1; |
969 | } |
1538 | } |
970 | |
1539 | |
971 | static int |
1540 | static int |
972 | api_is_ready (SV *coro_sv) |
1541 | api_is_ready (SV *coro_sv) |
973 | { |
1542 | { |
|
|
1543 | dTHX; |
974 | return !!SvSTATE (coro_sv)->flags & CF_READY; |
1544 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
975 | } |
1545 | } |
976 | |
1546 | |
977 | static void |
1547 | static void |
978 | prepare_schedule (struct transfer_args *ta) |
1548 | prepare_schedule (pTHX_ struct transfer_args *ta) |
979 | { |
1549 | { |
980 | SV *prev, *next; |
1550 | SV *prev_sv, *next_sv; |
981 | |
1551 | |
982 | for (;;) |
1552 | for (;;) |
983 | { |
1553 | { |
984 | LOCK; |
1554 | LOCK; |
985 | next = coro_deq (PRIO_MIN); |
1555 | next_sv = coro_deq (aTHX); |
|
|
1556 | |
|
|
1557 | /* nothing to schedule: call the idle handler */ |
|
|
1558 | if (expect_false (!next_sv)) |
|
|
1559 | { |
|
|
1560 | dSP; |
|
|
1561 | UNLOCK; |
|
|
1562 | |
|
|
1563 | ENTER; |
|
|
1564 | SAVETMPS; |
|
|
1565 | |
|
|
1566 | PUSHMARK (SP); |
|
|
1567 | PUTBACK; |
|
|
1568 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1569 | SPAGAIN; |
|
|
1570 | |
|
|
1571 | FREETMPS; |
|
|
1572 | LEAVE; |
|
|
1573 | continue; |
|
|
1574 | } |
|
|
1575 | |
|
|
1576 | ta->next = SvSTATE (next_sv); |
|
|
1577 | |
|
|
1578 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1579 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1580 | { |
|
|
1581 | UNLOCK; |
|
|
1582 | SvREFCNT_dec (next_sv); |
|
|
1583 | /* coro_nready is already taken care of by destroy */ |
|
|
1584 | continue; |
|
|
1585 | } |
|
|
1586 | |
|
|
1587 | --coro_nready; |
986 | UNLOCK; |
1588 | UNLOCK; |
987 | |
|
|
988 | if (next) |
|
|
989 | break; |
1589 | break; |
990 | |
|
|
991 | { |
|
|
992 | dSP; |
|
|
993 | |
|
|
994 | ENTER; |
|
|
995 | SAVETMPS; |
|
|
996 | |
|
|
997 | PUSHMARK (SP); |
|
|
998 | PUTBACK; |
|
|
999 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1000 | |
|
|
1001 | FREETMPS; |
|
|
1002 | LEAVE; |
|
|
1003 | } |
1590 | } |
1004 | } |
|
|
1005 | |
|
|
1006 | prev = SvRV (coro_current); |
|
|
1007 | SvRV_set (coro_current, next); |
|
|
1008 | |
1591 | |
1009 | /* free this only after the transfer */ |
1592 | /* free this only after the transfer */ |
1010 | LOCK; |
1593 | prev_sv = SvRV (coro_current); |
1011 | free_coro_mortal (); |
|
|
1012 | UNLOCK; |
|
|
1013 | coro_mortal = prev; |
|
|
1014 | |
|
|
1015 | assert (!SvROK(prev));//D |
|
|
1016 | assert (!SvROK(next));//D |
|
|
1017 | |
|
|
1018 | ta->prev = SvSTATE (prev); |
1594 | ta->prev = SvSTATE (prev_sv); |
1019 | ta->next = SvSTATE (next); |
1595 | TRANSFER_CHECK (*ta); |
1020 | |
|
|
1021 | assert (ta->next->flags & CF_READY); |
1596 | assert (ta->next->flags & CF_READY); |
1022 | ta->next->flags &= ~CF_READY; |
1597 | ta->next->flags &= ~CF_READY; |
|
|
1598 | SvRV_set (coro_current, next_sv); |
|
|
1599 | |
|
|
1600 | LOCK; |
|
|
1601 | free_coro_mortal (aTHX); |
|
|
1602 | coro_mortal = prev_sv; |
|
|
1603 | UNLOCK; |
1023 | } |
1604 | } |
1024 | |
1605 | |
1025 | static void |
1606 | static void |
1026 | prepare_cede (struct transfer_args *ta) |
1607 | prepare_cede (pTHX_ struct transfer_args *ta) |
1027 | { |
1608 | { |
1028 | api_ready (coro_current); |
1609 | api_ready (coro_current); |
1029 | |
|
|
1030 | prepare_schedule (ta); |
1610 | prepare_schedule (aTHX_ ta); |
|
|
1611 | } |
|
|
1612 | |
|
|
1613 | static int |
|
|
1614 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1615 | { |
|
|
1616 | if (coro_nready) |
|
|
1617 | { |
|
|
1618 | SV *prev = SvRV (coro_current); |
|
|
1619 | prepare_schedule (aTHX_ ta); |
|
|
1620 | api_ready (prev); |
|
|
1621 | return 1; |
|
|
1622 | } |
|
|
1623 | else |
|
|
1624 | return 0; |
1031 | } |
1625 | } |
1032 | |
1626 | |
1033 | static void |
1627 | static void |
1034 | api_schedule (void) |
1628 | api_schedule (void) |
1035 | { |
1629 | { |
|
|
1630 | dTHX; |
1036 | struct transfer_args ta; |
1631 | struct transfer_args ta; |
1037 | |
1632 | |
1038 | prepare_schedule (&ta); |
1633 | prepare_schedule (aTHX_ &ta); |
1039 | TRANSFER (ta); |
1634 | TRANSFER (ta, 1); |
|
|
1635 | } |
|
|
1636 | |
|
|
1637 | static int |
|
|
1638 | api_cede (void) |
|
|
1639 | { |
|
|
1640 | dTHX; |
|
|
1641 | struct transfer_args ta; |
|
|
1642 | |
|
|
1643 | prepare_cede (aTHX_ &ta); |
|
|
1644 | |
|
|
1645 | if (expect_true (ta.prev != ta.next)) |
|
|
1646 | { |
|
|
1647 | TRANSFER (ta, 1); |
|
|
1648 | return 1; |
|
|
1649 | } |
|
|
1650 | else |
|
|
1651 | return 0; |
|
|
1652 | } |
|
|
1653 | |
|
|
1654 | static int |
|
|
1655 | api_cede_notself (void) |
|
|
1656 | { |
|
|
1657 | dTHX; |
|
|
1658 | struct transfer_args ta; |
|
|
1659 | |
|
|
1660 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1661 | { |
|
|
1662 | TRANSFER (ta, 1); |
|
|
1663 | return 1; |
|
|
1664 | } |
|
|
1665 | else |
|
|
1666 | return 0; |
1040 | } |
1667 | } |
1041 | |
1668 | |
1042 | static void |
1669 | static void |
1043 | api_cede (void) |
1670 | api_trace (SV *coro_sv, int flags) |
1044 | { |
1671 | { |
1045 | struct transfer_args ta; |
1672 | dTHX; |
|
|
1673 | struct coro *coro = SvSTATE (coro_sv); |
1046 | |
1674 | |
1047 | prepare_cede (&ta); |
1675 | if (flags & CC_TRACE) |
1048 | TRANSFER (ta); |
1676 | { |
1049 | } |
1677 | if (!coro->cctx) |
|
|
1678 | coro->cctx = cctx_new_run (); |
|
|
1679 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1680 | croak ("cannot enable tracing on coroutine with custom stack"); |
1050 | |
1681 | |
|
|
1682 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1683 | } |
|
|
1684 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1685 | { |
|
|
1686 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1687 | |
|
|
1688 | if (coro->flags & CF_RUNNING) |
|
|
1689 | PL_runops = RUNOPS_DEFAULT; |
|
|
1690 | else |
|
|
1691 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1692 | } |
|
|
1693 | } |
|
|
1694 | |
|
|
1695 | #if 0 |
|
|
1696 | static int |
|
|
1697 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
|
|
1698 | { |
|
|
1699 | AV *padlist; |
|
|
1700 | AV *av = (AV *)mg->mg_obj; |
|
|
1701 | |
|
|
1702 | abort (); |
|
|
1703 | |
|
|
1704 | return 0; |
|
|
1705 | } |
|
|
1706 | |
|
|
1707 | static MGVTBL coro_gensub_vtbl = { |
|
|
1708 | 0, 0, 0, 0, |
|
|
1709 | coro_gensub_free |
|
|
1710 | }; |
|
|
1711 | #endif |
|
|
1712 | |
|
|
1713 | /*****************************************************************************/ |
|
|
1714 | /* PerlIO::cede */ |
|
|
1715 | |
|
|
1716 | typedef struct |
|
|
1717 | { |
|
|
1718 | PerlIOBuf base; |
|
|
1719 | NV next, every; |
|
|
1720 | } PerlIOCede; |
|
|
1721 | |
|
|
1722 | static IV |
|
|
1723 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
1724 | { |
|
|
1725 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1726 | |
|
|
1727 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
1728 | self->next = nvtime () + self->every; |
|
|
1729 | |
|
|
1730 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
1731 | } |
|
|
1732 | |
|
|
1733 | static SV * |
|
|
1734 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
1735 | { |
|
|
1736 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1737 | |
|
|
1738 | return newSVnv (self->every); |
|
|
1739 | } |
|
|
1740 | |
|
|
1741 | static IV |
|
|
1742 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
1743 | { |
|
|
1744 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1745 | double now = nvtime (); |
|
|
1746 | |
|
|
1747 | if (now >= self->next) |
|
|
1748 | { |
|
|
1749 | api_cede (); |
|
|
1750 | self->next = now + self->every; |
|
|
1751 | } |
|
|
1752 | |
|
|
1753 | return PerlIOBuf_flush (aTHX_ f); |
|
|
1754 | } |
|
|
1755 | |
|
|
1756 | static PerlIO_funcs PerlIO_cede = |
|
|
1757 | { |
|
|
1758 | sizeof(PerlIO_funcs), |
|
|
1759 | "cede", |
|
|
1760 | sizeof(PerlIOCede), |
|
|
1761 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
1762 | PerlIOCede_pushed, |
|
|
1763 | PerlIOBuf_popped, |
|
|
1764 | PerlIOBuf_open, |
|
|
1765 | PerlIOBase_binmode, |
|
|
1766 | PerlIOCede_getarg, |
|
|
1767 | PerlIOBase_fileno, |
|
|
1768 | PerlIOBuf_dup, |
|
|
1769 | PerlIOBuf_read, |
|
|
1770 | PerlIOBuf_unread, |
|
|
1771 | PerlIOBuf_write, |
|
|
1772 | PerlIOBuf_seek, |
|
|
1773 | PerlIOBuf_tell, |
|
|
1774 | PerlIOBuf_close, |
|
|
1775 | PerlIOCede_flush, |
|
|
1776 | PerlIOBuf_fill, |
|
|
1777 | PerlIOBase_eof, |
|
|
1778 | PerlIOBase_error, |
|
|
1779 | PerlIOBase_clearerr, |
|
|
1780 | PerlIOBase_setlinebuf, |
|
|
1781 | PerlIOBuf_get_base, |
|
|
1782 | PerlIOBuf_bufsiz, |
|
|
1783 | PerlIOBuf_get_ptr, |
|
|
1784 | PerlIOBuf_get_cnt, |
|
|
1785 | PerlIOBuf_set_ptrcnt, |
|
|
1786 | }; |
|
|
1787 | |
|
|
1788 | |
1051 | MODULE = Coro::State PACKAGE = Coro::State |
1789 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1052 | |
1790 | |
1053 | PROTOTYPES: DISABLE |
1791 | PROTOTYPES: DISABLE |
1054 | |
1792 | |
1055 | BOOT: |
1793 | BOOT: |
1056 | { |
1794 | { |
1057 | #ifdef USE_ITHREADS |
1795 | #ifdef USE_ITHREADS |
1058 | MUTEX_INIT (&coro_mutex); |
1796 | MUTEX_INIT (&coro_lock); |
|
|
1797 | # if CORO_PTHREAD |
|
|
1798 | coro_thx = PERL_GET_CONTEXT; |
|
|
1799 | # endif |
1059 | #endif |
1800 | #endif |
1060 | BOOT_PAGESIZE; |
1801 | BOOT_PAGESIZE; |
1061 | |
1802 | |
|
|
1803 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1804 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1805 | |
|
|
1806 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
1807 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
1808 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
1809 | |
|
|
1810 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
1811 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
1812 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
|
|
1813 | |
1062 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1814 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1063 | |
1815 | |
|
|
1816 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
|
|
1817 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1064 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1818 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1065 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
|
|
1066 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1067 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1068 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1819 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1069 | |
1820 | |
1070 | main_mainstack = PL_mainstack; |
1821 | main_mainstack = PL_mainstack; |
|
|
1822 | main_top_env = PL_top_env; |
1071 | |
1823 | |
|
|
1824 | while (main_top_env->je_prev) |
|
|
1825 | main_top_env = main_top_env->je_prev; |
|
|
1826 | |
1072 | coroapi.ver = CORO_API_VERSION; |
1827 | coroapi.ver = CORO_API_VERSION; |
|
|
1828 | coroapi.rev = CORO_API_REVISION; |
1073 | coroapi.transfer = api_transfer; |
1829 | coroapi.transfer = api_transfer; |
|
|
1830 | |
|
|
1831 | { |
|
|
1832 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
1833 | |
|
|
1834 | if (!svp) croak ("Time::HiRes is required"); |
|
|
1835 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
1836 | |
|
|
1837 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
1838 | } |
1074 | |
1839 | |
1075 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1840 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1076 | } |
1841 | } |
1077 | |
1842 | |
1078 | SV * |
1843 | SV * |
1079 | new (char *klass, ...) |
1844 | new (char *klass, ...) |
1080 | CODE: |
1845 | CODE: |
1081 | { |
1846 | { |
1082 | struct coro *coro; |
1847 | struct coro *coro; |
|
|
1848 | MAGIC *mg; |
1083 | HV *hv; |
1849 | HV *hv; |
1084 | int i; |
1850 | int i; |
1085 | |
1851 | |
1086 | Newz (0, coro, 1, struct coro); |
1852 | Newz (0, coro, 1, struct coro); |
1087 | coro->args = newAV (); |
1853 | coro->args = newAV (); |
1088 | coro->save = CORO_SAVE_ALL; |
|
|
1089 | coro->flags = CF_NEW; |
1854 | coro->flags = CF_NEW; |
1090 | |
1855 | |
|
|
1856 | if (coro_first) coro_first->prev = coro; |
|
|
1857 | coro->next = coro_first; |
|
|
1858 | coro_first = coro; |
|
|
1859 | |
1091 | hv = newHV (); |
1860 | coro->hv = hv = newHV (); |
1092 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1861 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
1862 | mg->mg_flags |= MGf_DUP; |
1093 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1863 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1094 | |
1864 | |
|
|
1865 | av_extend (coro->args, items - 1); |
1095 | for (i = 1; i < items; i++) |
1866 | for (i = 1; i < items; i++) |
1096 | av_push (coro->args, newSVsv (ST (i))); |
1867 | av_push (coro->args, newSVsv (ST (i))); |
1097 | } |
1868 | } |
1098 | OUTPUT: |
1869 | OUTPUT: |
1099 | RETVAL |
1870 | RETVAL |
1100 | |
1871 | |
1101 | int |
1872 | # these not obviously related functions are all rolled into the same xs |
1102 | save (SV *coro, int new_save = -1) |
1873 | # function to increase chances that they all will call transfer with the same |
1103 | CODE: |
1874 | # stack offset |
1104 | RETVAL = api_save (coro, new_save); |
|
|
1105 | OUTPUT: |
|
|
1106 | RETVAL |
|
|
1107 | |
|
|
1108 | void |
1875 | void |
1109 | _set_stacklevel (...) |
1876 | _set_stacklevel (...) |
1110 | ALIAS: |
1877 | ALIAS: |
1111 | Coro::State::transfer = 1 |
1878 | Coro::State::transfer = 1 |
1112 | Coro::schedule = 2 |
1879 | Coro::schedule = 2 |
1113 | Coro::cede = 3 |
1880 | Coro::cede = 3 |
|
|
1881 | Coro::cede_notself = 4 |
1114 | CODE: |
1882 | CODE: |
1115 | { |
1883 | { |
1116 | struct transfer_args ta; |
1884 | struct transfer_args ta; |
1117 | |
1885 | |
|
|
1886 | PUTBACK; |
1118 | switch (ix) |
1887 | switch (ix) |
1119 | { |
1888 | { |
1120 | case 0: |
1889 | case 0: |
1121 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1890 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1122 | ta.next = 0; |
1891 | ta.next = 0; |
1123 | break; |
1892 | break; |
1124 | |
1893 | |
1125 | case 1: |
1894 | case 1: |
1126 | if (items != 2) |
1895 | if (items != 2) |
1127 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1896 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d", items); |
1128 | |
1897 | |
1129 | prepare_transfer (&ta, ST (0), ST (1)); |
1898 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1130 | break; |
1899 | break; |
1131 | |
1900 | |
1132 | case 2: |
1901 | case 2: |
1133 | prepare_schedule (&ta); |
1902 | prepare_schedule (aTHX_ &ta); |
1134 | break; |
1903 | break; |
1135 | |
1904 | |
1136 | case 3: |
1905 | case 3: |
1137 | prepare_cede (&ta); |
1906 | prepare_cede (aTHX_ &ta); |
|
|
1907 | break; |
|
|
1908 | |
|
|
1909 | case 4: |
|
|
1910 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1911 | XSRETURN_EMPTY; |
|
|
1912 | |
1138 | break; |
1913 | break; |
1139 | } |
1914 | } |
|
|
1915 | SPAGAIN; |
1140 | |
1916 | |
|
|
1917 | BARRIER; |
|
|
1918 | PUTBACK; |
1141 | TRANSFER (ta); |
1919 | TRANSFER (ta, 0); |
|
|
1920 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1921 | /* be extra careful not to ever do anything after TRANSFER */ |
1142 | } |
1922 | } |
|
|
1923 | |
|
|
1924 | bool |
|
|
1925 | _destroy (SV *coro_sv) |
|
|
1926 | CODE: |
|
|
1927 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
1928 | OUTPUT: |
|
|
1929 | RETVAL |
1143 | |
1930 | |
1144 | void |
1931 | void |
1145 | _clone_state_from (SV *dst, SV *src) |
|
|
1146 | CODE: |
|
|
1147 | { |
|
|
1148 | struct coro *coro_src = SvSTATE (src); |
|
|
1149 | |
|
|
1150 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1151 | |
|
|
1152 | ++coro_src->refcnt; |
|
|
1153 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1154 | } |
|
|
1155 | |
|
|
1156 | void |
|
|
1157 | _exit (code) |
1932 | _exit (int code) |
1158 | int code |
|
|
1159 | PROTOTYPE: $ |
1933 | PROTOTYPE: $ |
1160 | CODE: |
1934 | CODE: |
1161 | _exit (code); |
1935 | _exit (code); |
|
|
1936 | |
|
|
1937 | int |
|
|
1938 | cctx_stacksize (int new_stacksize = 0) |
|
|
1939 | CODE: |
|
|
1940 | RETVAL = cctx_stacksize; |
|
|
1941 | if (new_stacksize) |
|
|
1942 | { |
|
|
1943 | cctx_stacksize = new_stacksize; |
|
|
1944 | ++cctx_gen; |
|
|
1945 | } |
|
|
1946 | OUTPUT: |
|
|
1947 | RETVAL |
|
|
1948 | |
|
|
1949 | int |
|
|
1950 | cctx_max_idle (int max_idle = 0) |
|
|
1951 | CODE: |
|
|
1952 | RETVAL = cctx_max_idle; |
|
|
1953 | if (max_idle > 1) |
|
|
1954 | cctx_max_idle = max_idle; |
|
|
1955 | OUTPUT: |
|
|
1956 | RETVAL |
1162 | |
1957 | |
1163 | int |
1958 | int |
1164 | cctx_count () |
1959 | cctx_count () |
1165 | CODE: |
1960 | CODE: |
1166 | RETVAL = cctx_count; |
1961 | RETVAL = cctx_count; |
… | |
… | |
1172 | CODE: |
1967 | CODE: |
1173 | RETVAL = cctx_idle; |
1968 | RETVAL = cctx_idle; |
1174 | OUTPUT: |
1969 | OUTPUT: |
1175 | RETVAL |
1970 | RETVAL |
1176 | |
1971 | |
|
|
1972 | void |
|
|
1973 | list () |
|
|
1974 | PPCODE: |
|
|
1975 | { |
|
|
1976 | struct coro *coro; |
|
|
1977 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1978 | if (coro->hv) |
|
|
1979 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1980 | } |
|
|
1981 | |
|
|
1982 | void |
|
|
1983 | call (Coro::State coro, SV *coderef) |
|
|
1984 | ALIAS: |
|
|
1985 | eval = 1 |
|
|
1986 | CODE: |
|
|
1987 | { |
|
|
1988 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
|
|
1989 | { |
|
|
1990 | struct coro temp; |
|
|
1991 | |
|
|
1992 | if (!(coro->flags & CF_RUNNING)) |
|
|
1993 | { |
|
|
1994 | PUTBACK; |
|
|
1995 | save_perl (aTHX_ &temp); |
|
|
1996 | load_perl (aTHX_ coro); |
|
|
1997 | } |
|
|
1998 | |
|
|
1999 | { |
|
|
2000 | dSP; |
|
|
2001 | ENTER; |
|
|
2002 | SAVETMPS; |
|
|
2003 | PUTBACK; |
|
|
2004 | PUSHSTACK; |
|
|
2005 | PUSHMARK (SP); |
|
|
2006 | |
|
|
2007 | if (ix) |
|
|
2008 | eval_sv (coderef, 0); |
|
|
2009 | else |
|
|
2010 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
2011 | |
|
|
2012 | POPSTACK; |
|
|
2013 | SPAGAIN; |
|
|
2014 | FREETMPS; |
|
|
2015 | LEAVE; |
|
|
2016 | PUTBACK; |
|
|
2017 | } |
|
|
2018 | |
|
|
2019 | if (!(coro->flags & CF_RUNNING)) |
|
|
2020 | { |
|
|
2021 | save_perl (aTHX_ coro); |
|
|
2022 | load_perl (aTHX_ &temp); |
|
|
2023 | SPAGAIN; |
|
|
2024 | } |
|
|
2025 | } |
|
|
2026 | } |
|
|
2027 | |
|
|
2028 | SV * |
|
|
2029 | is_ready (Coro::State coro) |
|
|
2030 | PROTOTYPE: $ |
|
|
2031 | ALIAS: |
|
|
2032 | is_ready = CF_READY |
|
|
2033 | is_running = CF_RUNNING |
|
|
2034 | is_new = CF_NEW |
|
|
2035 | is_destroyed = CF_DESTROYED |
|
|
2036 | CODE: |
|
|
2037 | RETVAL = boolSV (coro->flags & ix); |
|
|
2038 | OUTPUT: |
|
|
2039 | RETVAL |
|
|
2040 | |
|
|
2041 | void |
|
|
2042 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2043 | |
|
|
2044 | SV * |
|
|
2045 | has_cctx (Coro::State coro) |
|
|
2046 | PROTOTYPE: $ |
|
|
2047 | CODE: |
|
|
2048 | RETVAL = boolSV (!!coro->cctx); |
|
|
2049 | OUTPUT: |
|
|
2050 | RETVAL |
|
|
2051 | |
|
|
2052 | int |
|
|
2053 | is_traced (Coro::State coro) |
|
|
2054 | PROTOTYPE: $ |
|
|
2055 | CODE: |
|
|
2056 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
2057 | OUTPUT: |
|
|
2058 | RETVAL |
|
|
2059 | |
|
|
2060 | UV |
|
|
2061 | rss (Coro::State coro) |
|
|
2062 | PROTOTYPE: $ |
|
|
2063 | ALIAS: |
|
|
2064 | usecount = 1 |
|
|
2065 | CODE: |
|
|
2066 | switch (ix) |
|
|
2067 | { |
|
|
2068 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
2069 | case 1: RETVAL = coro->usecount; break; |
|
|
2070 | } |
|
|
2071 | OUTPUT: |
|
|
2072 | RETVAL |
|
|
2073 | |
|
|
2074 | void |
|
|
2075 | force_cctx () |
|
|
2076 | CODE: |
|
|
2077 | struct coro *coro = SvSTATE (coro_current); |
|
|
2078 | coro->cctx->idle_sp = 0; |
|
|
2079 | |
|
|
2080 | void |
|
|
2081 | swap_defsv (Coro::State self) |
|
|
2082 | PROTOTYPE: $ |
|
|
2083 | ALIAS: |
|
|
2084 | swap_defav = 1 |
|
|
2085 | CODE: |
|
|
2086 | if (!self->slot) |
|
|
2087 | croak ("cannot swap state with coroutine that has no saved state"); |
|
|
2088 | else |
|
|
2089 | { |
|
|
2090 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
2091 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
2092 | |
|
|
2093 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
2094 | } |
|
|
2095 | |
1177 | MODULE = Coro::State PACKAGE = Coro |
2096 | MODULE = Coro::State PACKAGE = Coro |
1178 | |
2097 | |
1179 | BOOT: |
2098 | BOOT: |
1180 | { |
2099 | { |
1181 | int i; |
2100 | int i; |
1182 | |
2101 | |
|
|
2102 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2103 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
2104 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
2105 | |
|
|
2106 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
|
|
2107 | SvREADONLY_on (coro_current); |
|
|
2108 | |
1183 | coro_stash = gv_stashpv ("Coro", TRUE); |
2109 | coro_stash = gv_stashpv ("Coro", TRUE); |
1184 | |
2110 | |
1185 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2111 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1186 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2112 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1187 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
2113 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1188 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
2114 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1189 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
2115 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1190 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
2116 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1191 | |
2117 | |
1192 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1193 | SvREADONLY_on (coro_current); |
|
|
1194 | |
|
|
1195 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2118 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1196 | coro_ready[i] = newAV (); |
2119 | coro_ready[i] = newAV (); |
1197 | |
2120 | |
1198 | { |
2121 | { |
1199 | SV *sv = perl_get_sv("Coro::API", 1); |
2122 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
|
|
2123 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
1200 | |
2124 | |
1201 | coroapi.schedule = api_schedule; |
2125 | coroapi.schedule = api_schedule; |
1202 | coroapi.save = api_save; |
|
|
1203 | coroapi.cede = api_cede; |
2126 | coroapi.cede = api_cede; |
|
|
2127 | coroapi.cede_notself = api_cede_notself; |
1204 | coroapi.ready = api_ready; |
2128 | coroapi.ready = api_ready; |
1205 | coroapi.is_ready = api_is_ready; |
2129 | coroapi.is_ready = api_is_ready; |
1206 | coroapi.nready = &coro_nready; |
2130 | coroapi.nready = &coro_nready; |
1207 | coroapi.current = coro_current; |
2131 | coroapi.current = coro_current; |
1208 | |
2132 | |
1209 | GCoroAPI = &coroapi; |
2133 | GCoroAPI = &coroapi; |
1210 | sv_setiv (sv, (IV)&coroapi); |
2134 | sv_setiv (sv, (IV)&coroapi); |
1211 | SvREADONLY_on (sv); |
2135 | SvREADONLY_on (sv); |
1212 | } |
2136 | } |
… | |
… | |
1215 | void |
2139 | void |
1216 | _set_current (SV *current) |
2140 | _set_current (SV *current) |
1217 | PROTOTYPE: $ |
2141 | PROTOTYPE: $ |
1218 | CODE: |
2142 | CODE: |
1219 | SvREFCNT_dec (SvRV (coro_current)); |
2143 | SvREFCNT_dec (SvRV (coro_current)); |
1220 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
2144 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
2145 | |
|
|
2146 | void |
|
|
2147 | _set_readyhook (SV *hook) |
|
|
2148 | PROTOTYPE: $ |
|
|
2149 | CODE: |
|
|
2150 | LOCK; |
|
|
2151 | SvREFCNT_dec (coro_readyhook); |
|
|
2152 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
|
|
2153 | UNLOCK; |
1221 | |
2154 | |
1222 | int |
2155 | int |
1223 | prio (Coro::State coro, int newprio = 0) |
2156 | prio (Coro::State coro, int newprio = 0) |
1224 | ALIAS: |
2157 | ALIAS: |
1225 | nice = 1 |
2158 | nice = 1 |
… | |
… | |
1228 | RETVAL = coro->prio; |
2161 | RETVAL = coro->prio; |
1229 | |
2162 | |
1230 | if (items > 1) |
2163 | if (items > 1) |
1231 | { |
2164 | { |
1232 | if (ix) |
2165 | if (ix) |
1233 | newprio += coro->prio; |
2166 | newprio = coro->prio - newprio; |
1234 | |
2167 | |
1235 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
2168 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1236 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
2169 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1237 | |
2170 | |
1238 | coro->prio = newprio; |
2171 | coro->prio = newprio; |
1239 | } |
2172 | } |
1240 | } |
2173 | } |
|
|
2174 | OUTPUT: |
|
|
2175 | RETVAL |
1241 | |
2176 | |
1242 | SV * |
2177 | SV * |
1243 | ready (SV *self) |
2178 | ready (SV *self) |
1244 | PROTOTYPE: $ |
2179 | PROTOTYPE: $ |
1245 | CODE: |
2180 | CODE: |
1246 | RETVAL = boolSV (api_ready (self)); |
2181 | RETVAL = boolSV (api_ready (self)); |
1247 | OUTPUT: |
2182 | OUTPUT: |
1248 | RETVAL |
2183 | RETVAL |
1249 | |
2184 | |
1250 | SV * |
|
|
1251 | is_ready (SV *self) |
|
|
1252 | PROTOTYPE: $ |
|
|
1253 | CODE: |
|
|
1254 | RETVAL = boolSV (api_is_ready (self)); |
|
|
1255 | OUTPUT: |
|
|
1256 | RETVAL |
|
|
1257 | |
|
|
1258 | int |
2185 | int |
1259 | nready (...) |
2186 | nready (...) |
1260 | PROTOTYPE: |
2187 | PROTOTYPE: |
1261 | CODE: |
2188 | CODE: |
1262 | RETVAL = coro_nready; |
2189 | RETVAL = coro_nready; |
1263 | OUTPUT: |
2190 | OUTPUT: |
1264 | RETVAL |
2191 | RETVAL |
1265 | |
2192 | |
|
|
2193 | void |
|
|
2194 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2195 | PROTOTYPE: $;$ |
|
|
2196 | CODE: |
|
|
2197 | SvREFCNT_dec (self->throw); |
|
|
2198 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2199 | |
|
|
2200 | # for async_pool speedup |
|
|
2201 | void |
|
|
2202 | _pool_1 (SV *cb) |
|
|
2203 | CODE: |
|
|
2204 | { |
|
|
2205 | struct coro *coro = SvSTATE (coro_current); |
|
|
2206 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2207 | AV *defav = GvAV (PL_defgv); |
|
|
2208 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2209 | AV *invoke_av; |
|
|
2210 | int i, len; |
|
|
2211 | |
|
|
2212 | if (!invoke) |
|
|
2213 | { |
|
|
2214 | SV *old = PL_diehook; |
|
|
2215 | PL_diehook = 0; |
|
|
2216 | SvREFCNT_dec (old); |
|
|
2217 | croak ("\3async_pool terminate\2\n"); |
|
|
2218 | } |
|
|
2219 | |
|
|
2220 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2221 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2222 | |
|
|
2223 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2224 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2225 | |
|
|
2226 | invoke_av = (AV *)SvRV (invoke); |
|
|
2227 | len = av_len (invoke_av); |
|
|
2228 | |
|
|
2229 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2230 | |
|
|
2231 | if (len > 0) |
|
|
2232 | { |
|
|
2233 | av_fill (defav, len - 1); |
|
|
2234 | for (i = 0; i < len; ++i) |
|
|
2235 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
|
|
2236 | } |
|
|
2237 | |
|
|
2238 | SvREFCNT_dec (invoke); |
|
|
2239 | } |
|
|
2240 | |
|
|
2241 | void |
|
|
2242 | _pool_2 (SV *cb) |
|
|
2243 | CODE: |
|
|
2244 | { |
|
|
2245 | struct coro *coro = SvSTATE (coro_current); |
|
|
2246 | |
|
|
2247 | sv_setsv (cb, &PL_sv_undef); |
|
|
2248 | |
|
|
2249 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2250 | coro->saved_deffh = 0; |
|
|
2251 | |
|
|
2252 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2253 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2254 | { |
|
|
2255 | SV *old = PL_diehook; |
|
|
2256 | PL_diehook = 0; |
|
|
2257 | SvREFCNT_dec (old); |
|
|
2258 | croak ("\3async_pool terminate\2\n"); |
|
|
2259 | } |
|
|
2260 | |
|
|
2261 | av_clear (GvAV (PL_defgv)); |
|
|
2262 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2263 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2264 | |
|
|
2265 | coro->prio = 0; |
|
|
2266 | |
|
|
2267 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2268 | api_trace (coro_current, 0); |
|
|
2269 | |
|
|
2270 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2271 | } |
|
|
2272 | |
|
|
2273 | #if 0 |
|
|
2274 | |
|
|
2275 | void |
|
|
2276 | _generator_call (...) |
|
|
2277 | PROTOTYPE: @ |
|
|
2278 | PPCODE: |
|
|
2279 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2280 | xxxx |
|
|
2281 | abort (); |
|
|
2282 | |
|
|
2283 | SV * |
|
|
2284 | gensub (SV *sub, ...) |
|
|
2285 | PROTOTYPE: &;@ |
|
|
2286 | CODE: |
|
|
2287 | { |
|
|
2288 | struct coro *coro; |
|
|
2289 | MAGIC *mg; |
|
|
2290 | CV *xcv; |
|
|
2291 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2292 | int i; |
|
|
2293 | |
|
|
2294 | CvGV (ncv) = CvGV (cv); |
|
|
2295 | CvFILE (ncv) = CvFILE (cv); |
|
|
2296 | |
|
|
2297 | Newz (0, coro, 1, struct coro); |
|
|
2298 | coro->args = newAV (); |
|
|
2299 | coro->flags = CF_NEW; |
|
|
2300 | |
|
|
2301 | av_extend (coro->args, items - 1); |
|
|
2302 | for (i = 1; i < items; i++) |
|
|
2303 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2304 | |
|
|
2305 | CvISXSUB_on (ncv); |
|
|
2306 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2307 | |
|
|
2308 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2309 | |
|
|
2310 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2311 | CvANON_on (ncv); |
|
|
2312 | |
|
|
2313 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2314 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2315 | } |
|
|
2316 | OUTPUT: |
|
|
2317 | RETVAL |
|
|
2318 | |
|
|
2319 | #endif |
|
|
2320 | |
|
|
2321 | |
1266 | MODULE = Coro::State PACKAGE = Coro::AIO |
2322 | MODULE = Coro::State PACKAGE = Coro::AIO |
1267 | |
2323 | |
1268 | SV * |
2324 | void |
1269 | _get_state () |
2325 | _get_state (SV *self) |
1270 | CODE: |
2326 | PPCODE: |
1271 | { |
2327 | { |
1272 | struct io_state *data; |
2328 | AV *defav = GvAV (PL_defgv); |
1273 | |
2329 | AV *av = newAV (); |
|
|
2330 | int i; |
1274 | RETVAL = newSV (sizeof (struct io_state)); |
2331 | SV *data_sv = newSV (sizeof (struct io_state)); |
1275 | data = (struct io_state *)SvPVX (RETVAL); |
2332 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
1276 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
2333 | SvCUR_set (data_sv, sizeof (struct io_state)); |
1277 | SvPOK_only (RETVAL); |
2334 | SvPOK_only (data_sv); |
1278 | |
2335 | |
1279 | data->errorno = errno; |
2336 | data->errorno = errno; |
1280 | data->laststype = PL_laststype; |
2337 | data->laststype = PL_laststype; |
1281 | data->laststatval = PL_laststatval; |
2338 | data->laststatval = PL_laststatval; |
1282 | data->statcache = PL_statcache; |
2339 | data->statcache = PL_statcache; |
|
|
2340 | |
|
|
2341 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2342 | |
|
|
2343 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2344 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2345 | |
|
|
2346 | av_push (av, data_sv); |
|
|
2347 | |
|
|
2348 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2349 | |
|
|
2350 | api_ready (self); |
1283 | } |
2351 | } |
1284 | OUTPUT: |
|
|
1285 | RETVAL |
|
|
1286 | |
2352 | |
1287 | void |
2353 | void |
1288 | _set_state (char *data_) |
2354 | _set_state (SV *state) |
1289 | PROTOTYPE: $ |
2355 | PROTOTYPE: $ |
1290 | CODE: |
2356 | PPCODE: |
1291 | { |
2357 | { |
1292 | struct io_state *data = (void *)data_; |
2358 | AV *av = (AV *)SvRV (state); |
|
|
2359 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2360 | int i; |
1293 | |
2361 | |
1294 | errno = data->errorno; |
2362 | errno = data->errorno; |
1295 | PL_laststype = data->laststype; |
2363 | PL_laststype = data->laststype; |
1296 | PL_laststatval = data->laststatval; |
2364 | PL_laststatval = data->laststatval; |
1297 | PL_statcache = data->statcache; |
2365 | PL_statcache = data->statcache; |
1298 | } |
|
|
1299 | |
2366 | |
|
|
2367 | EXTEND (SP, AvFILLp (av)); |
|
|
2368 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2369 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2370 | } |
|
|
2371 | |
|
|
2372 | |
|
|
2373 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2374 | |
|
|
2375 | BOOT: |
|
|
2376 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2377 | |
|
|
2378 | SV * |
|
|
2379 | _schedule (...) |
|
|
2380 | PROTOTYPE: @ |
|
|
2381 | CODE: |
|
|
2382 | { |
|
|
2383 | static int incede; |
|
|
2384 | |
|
|
2385 | api_cede_notself (); |
|
|
2386 | |
|
|
2387 | ++incede; |
|
|
2388 | while (coro_nready >= incede && api_cede ()) |
|
|
2389 | ; |
|
|
2390 | |
|
|
2391 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2392 | if (coro_nready >= incede) |
|
|
2393 | { |
|
|
2394 | PUSHMARK (SP); |
|
|
2395 | PUTBACK; |
|
|
2396 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2397 | SPAGAIN; |
|
|
2398 | } |
|
|
2399 | |
|
|
2400 | --incede; |
|
|
2401 | } |
|
|
2402 | |
|
|
2403 | |
|
|
2404 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
2405 | |
|
|
2406 | BOOT: |
|
|
2407 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |