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 |
… | |
… | |
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> |
38 | #endif |
51 | #endif |
39 | |
52 | |
40 | /* the maximum number of idle cctx that will be pooled */ |
53 | /* the maximum number of idle cctx that will be pooled */ |
41 | #define MAX_IDLE_CCTX 8 |
54 | static int cctx_max_idle = 4; |
42 | |
55 | |
43 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
44 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
45 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
46 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
… | |
… | |
65 | # ifndef IS_PADCONST |
78 | # ifndef IS_PADCONST |
66 | # define IS_PADCONST(v) 0 |
79 | # define IS_PADCONST(v) 0 |
67 | # endif |
80 | # endif |
68 | #endif |
81 | #endif |
69 | |
82 | |
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83 | /* 5.11 */ |
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84 | #ifndef CxHASARGS |
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85 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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86 | #endif |
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87 | |
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88 | /* 5.10.0 */ |
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89 | #ifndef SvREFCNT_inc_NN |
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90 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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91 | #endif |
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92 | |
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93 | /* 5.8.8 */ |
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94 | #ifndef GV_NOTQUAL |
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95 | # define GV_NOTQUAL 0 |
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96 | #endif |
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97 | #ifndef newSV |
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98 | # define newSV(l) NEWSV(0,l) |
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99 | #endif |
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100 | |
70 | /* 5.8.7 */ |
101 | /* 5.8.7 */ |
71 | #ifndef SvRV_set |
102 | #ifndef SvRV_set |
72 | # define SvRV_set(s,v) SvRV(s) = (v) |
103 | # define SvRV_set(s,v) SvRV(s) = (v) |
73 | #endif |
104 | #endif |
74 | |
105 | |
75 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
106 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
76 | # undef STACKGUARD |
107 | # undef CORO_STACKGUARD |
77 | #endif |
108 | #endif |
78 | |
109 | |
79 | #ifndef STACKGUARD |
110 | #ifndef CORO_STACKGUARD |
80 | # define STACKGUARD 0 |
111 | # define CORO_STACKGUARD 0 |
81 | #endif |
112 | #endif |
82 | |
113 | |
83 | /* prefer perl internal functions over our own? */ |
114 | /* prefer perl internal functions over our own? */ |
84 | #ifndef PREFER_PERL_FUNCTIONS |
115 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
85 | # define PREFER_PERL_FUNCTIONS 0 |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
86 | #endif |
117 | #endif |
87 | |
118 | |
88 | /* The next macro should declare a variable stacklevel that contains and approximation |
119 | /* 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 |
120 | * portable way as possible. */ |
90 | * and should be unique. */ |
121 | #if __GNUC__ >= 4 |
91 | #define dSTACKLEVEL int stacklevel |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
92 | #define STACKLEVEL ((void *)&stacklevel) |
123 | #else |
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124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
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125 | #endif |
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) |
98 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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132 | # define INLINE static inline |
99 | #else |
133 | #else |
100 | # define attribute(x) |
134 | # define attribute(x) |
101 | # define BARRIER |
135 | # define expect(expr,value) (expr) |
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136 | # define INLINE static |
102 | #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) |
103 | |
141 | |
104 | #define NOINLINE attribute ((noinline)) |
142 | #define NOINLINE attribute ((noinline)) |
105 | |
143 | |
106 | #include "CoroAPI.h" |
144 | #include "CoroAPI.h" |
107 | |
145 | |
108 | #ifdef USE_ITHREADS |
146 | #ifdef USE_ITHREADS |
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147 | |
109 | static perl_mutex coro_mutex; |
148 | static perl_mutex coro_lock; |
110 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
149 | # define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
111 | # 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 | |
112 | #else |
155 | #else |
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156 | |
113 | # define LOCK (void)0 |
157 | # define LOCK (void)0 |
114 | # define UNLOCK (void)0 |
158 | # define UNLOCK (void)0 |
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159 | |
115 | #endif |
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 |
116 | |
166 | |
117 | /* helper storage struct for Coro::AIO */ |
167 | /* helper storage struct for Coro::AIO */ |
118 | struct io_state |
168 | struct io_state |
119 | { |
169 | { |
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170 | AV *res; |
120 | int errorno; |
171 | int errorno; |
121 | I32 laststype; |
172 | I32 laststype; /* U16 in 5.10.0 */ |
122 | int laststatval; |
173 | int laststatval; |
123 | Stat_t statcache; |
174 | Stat_t statcache; |
124 | }; |
175 | }; |
125 | |
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; |
126 | static struct CoroAPI coroapi; |
181 | static struct CoroAPI coroapi; |
127 | 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; |
128 | static HV *coro_state_stash, *coro_stash; |
184 | static HV *coro_state_stash, *coro_stash; |
129 | 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 | static volatile struct coro *transfer_next; |
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187 | |
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188 | struct transfer_args |
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189 | { |
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190 | struct coro *prev, *next; |
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191 | }; |
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192 | |
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193 | static GV *irsgv; /* $/ */ |
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194 | static GV *stdoutgv; /* *STDOUT */ |
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195 | static SV *rv_diehook; |
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196 | static SV *rv_warnhook; |
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197 | static HV *hv_sig; /* %SIG */ |
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198 | |
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199 | /* async_pool helper stuff */ |
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200 | static SV *sv_pool_rss; |
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201 | static SV *sv_pool_size; |
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202 | static AV *av_async_pool; |
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203 | |
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204 | /* Coro::AnyEvent */ |
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205 | static SV *sv_activity; |
130 | |
206 | |
131 | static struct coro_cctx *cctx_first; |
207 | static struct coro_cctx *cctx_first; |
132 | static int cctx_count, cctx_idle; |
208 | static int cctx_count, cctx_idle; |
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209 | |
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210 | enum { |
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211 | CC_MAPPED = 0x01, |
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212 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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213 | CC_TRACE = 0x04, |
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214 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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215 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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216 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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217 | }; |
133 | |
218 | |
134 | /* this is a structure representing a c-level coroutine */ |
219 | /* this is a structure representing a c-level coroutine */ |
135 | typedef struct coro_cctx { |
220 | typedef struct coro_cctx { |
136 | struct coro_cctx *next; |
221 | struct coro_cctx *next; |
137 | |
222 | |
138 | /* the stack */ |
223 | /* the stack */ |
139 | void *sptr; |
224 | void *sptr; |
140 | long ssize; /* positive == mmap, otherwise malloc */ |
225 | size_t ssize; |
141 | |
226 | |
142 | /* cpu state */ |
227 | /* cpu state */ |
143 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
228 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
144 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
229 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
145 | JMPENV *top_env; |
230 | JMPENV *top_env; |
146 | coro_context cctx; |
231 | coro_context cctx; |
147 | |
232 | |
148 | int inuse; |
233 | U32 gen; |
149 | |
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150 | #if USE_VALGRIND |
234 | #if CORO_USE_VALGRIND |
151 | int valgrind_id; |
235 | int valgrind_id; |
152 | #endif |
236 | #endif |
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237 | unsigned char flags; |
153 | } coro_cctx; |
238 | } coro_cctx; |
154 | |
239 | |
155 | enum { |
240 | enum { |
156 | CF_RUNNING = 0x0001, /* coroutine is running */ |
241 | CF_RUNNING = 0x0001, /* coroutine is running */ |
157 | CF_READY = 0x0002, /* coroutine is ready */ |
242 | CF_READY = 0x0002, /* coroutine is ready */ |
158 | CF_NEW = 0x0004, /* has never been switched to */ |
243 | CF_NEW = 0x0004, /* has never been switched to */ |
159 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
244 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
160 | }; |
245 | }; |
161 | |
246 | |
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247 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
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248 | typedef struct { |
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249 | SV *defsv; |
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250 | AV *defav; |
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251 | SV *errsv; |
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252 | SV *irsgv; |
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253 | #define VAR(name,type) type name; |
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254 | # include "state.h" |
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255 | #undef VAR |
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256 | } perl_slots; |
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257 | |
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258 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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259 | |
162 | /* this is a structure representing a perl-level coroutine */ |
260 | /* this is a structure representing a perl-level coroutine */ |
163 | struct coro { |
261 | struct coro { |
164 | /* the c coroutine allocated to this perl coroutine, if any */ |
262 | /* the c coroutine allocated to this perl coroutine, if any */ |
165 | coro_cctx *cctx; |
263 | coro_cctx *cctx; |
166 | |
264 | |
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265 | /* process data */ |
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266 | AV *mainstack; |
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267 | perl_slots *slot; /* basically the saved sp */ |
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268 | |
167 | /* data associated with this coroutine (initial args) */ |
269 | AV *args; /* data associated with this coroutine (initial args) */ |
168 | AV *args; |
270 | int refcnt; /* coroutines are refcounted, yes */ |
169 | int refcnt; |
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170 | int save; /* CORO_SAVE flags */ |
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171 | int flags; /* CF_ flags */ |
271 | int flags; /* CF_ flags */ |
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272 | HV *hv; /* the perl hash associated with this coro, if any */ |
172 | |
273 | |
173 | /* optionally saved, might be zero */ |
274 | /* statistics */ |
174 | AV *defav; /* @_ */ |
275 | int usecount; /* number of transfers to this coro */ |
175 | SV *defsv; /* $_ */ |
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176 | SV *errsv; /* $@ */ |
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177 | SV *irssv; /* $/ */ |
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178 | SV *irssv_sv; /* real $/ cache */ |
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179 | |
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180 | #define VAR(name,type) type name; |
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181 | # include "state.h" |
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182 | #undef VAR |
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183 | |
276 | |
184 | /* coro process data */ |
277 | /* coro process data */ |
185 | int prio; |
278 | int prio; |
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279 | SV *throw; /* exception to be thrown */ |
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280 | |
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281 | /* async_pool */ |
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282 | SV *saved_deffh; |
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283 | |
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284 | /* linked list */ |
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285 | struct coro *next, *prev; |
186 | }; |
286 | }; |
187 | |
287 | |
188 | typedef struct coro *Coro__State; |
288 | typedef struct coro *Coro__State; |
189 | typedef struct coro *Coro__State_or_hashref; |
289 | typedef struct coro *Coro__State_or_hashref; |
190 | |
290 | |
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291 | /** Coro ********************************************************************/ |
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292 | |
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293 | #define PRIO_MAX 3 |
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294 | #define PRIO_HIGH 1 |
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295 | #define PRIO_NORMAL 0 |
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296 | #define PRIO_LOW -1 |
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297 | #define PRIO_IDLE -3 |
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298 | #define PRIO_MIN -4 |
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299 | |
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300 | /* for Coro.pm */ |
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301 | static SV *coro_current; |
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302 | static SV *coro_readyhook; |
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303 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
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304 | static int coro_nready; |
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305 | static struct coro *coro_first; |
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306 | |
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307 | /** lowlevel stuff **********************************************************/ |
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308 | |
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309 | static SV * |
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310 | coro_get_sv (pTHX_ const char *name, int create) |
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311 | { |
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312 | #if PERL_VERSION_ATLEAST (5,10,0) |
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313 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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314 | get_sv (name, create); |
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315 | #endif |
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316 | return get_sv (name, create); |
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317 | } |
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318 | |
191 | static AV * |
319 | static AV * |
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320 | coro_get_av (pTHX_ const char *name, int create) |
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321 | { |
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322 | #if PERL_VERSION_ATLEAST (5,10,0) |
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323 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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324 | get_av (name, create); |
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325 | #endif |
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326 | return get_av (name, create); |
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327 | } |
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328 | |
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329 | static HV * |
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330 | coro_get_hv (pTHX_ const char *name, int create) |
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331 | { |
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332 | #if PERL_VERSION_ATLEAST (5,10,0) |
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333 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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334 | get_hv (name, create); |
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335 | #endif |
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336 | return get_hv (name, create); |
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337 | } |
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338 | |
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339 | static AV * |
192 | coro_clone_padlist (CV *cv) |
340 | coro_clone_padlist (pTHX_ CV *cv) |
193 | { |
341 | { |
194 | AV *padlist = CvPADLIST (cv); |
342 | AV *padlist = CvPADLIST (cv); |
195 | AV *newpadlist, *newpad; |
343 | AV *newpadlist, *newpad; |
196 | |
344 | |
197 | newpadlist = newAV (); |
345 | newpadlist = newAV (); |
198 | AvREAL_off (newpadlist); |
346 | AvREAL_off (newpadlist); |
199 | #if PERL_VERSION_ATLEAST (5,9,0) |
347 | #if PERL_VERSION_ATLEAST (5,10,0) |
200 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
348 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
201 | #else |
349 | #else |
202 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
350 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
203 | #endif |
351 | #endif |
204 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
352 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
205 | --AvFILLp (padlist); |
353 | --AvFILLp (padlist); |
206 | |
354 | |
207 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
355 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
208 | av_store (newpadlist, 1, (SV *)newpad); |
356 | av_store (newpadlist, 1, (SV *)newpad); |
209 | |
357 | |
210 | return newpadlist; |
358 | return newpadlist; |
211 | } |
359 | } |
212 | |
360 | |
213 | static void |
361 | static void |
214 | free_padlist (AV *padlist) |
362 | free_padlist (pTHX_ AV *padlist) |
215 | { |
363 | { |
216 | /* may be during global destruction */ |
364 | /* may be during global destruction */ |
217 | if (SvREFCNT (padlist)) |
365 | if (SvREFCNT (padlist)) |
218 | { |
366 | { |
219 | I32 i = AvFILLp (padlist); |
367 | I32 i = AvFILLp (padlist); |
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… | |
240 | AV *padlist; |
388 | AV *padlist; |
241 | AV *av = (AV *)mg->mg_obj; |
389 | AV *av = (AV *)mg->mg_obj; |
242 | |
390 | |
243 | /* casting is fun. */ |
391 | /* casting is fun. */ |
244 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
392 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
245 | free_padlist (padlist); |
393 | free_padlist (aTHX_ padlist); |
246 | |
394 | |
247 | SvREFCNT_dec (av); |
395 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
248 | |
396 | |
249 | return 0; |
397 | return 0; |
250 | } |
398 | } |
251 | |
399 | |
252 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
400 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
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401 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
253 | |
402 | |
254 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
403 | static MGVTBL coro_cv_vtbl = { |
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404 | 0, 0, 0, 0, |
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405 | coro_cv_free |
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406 | }; |
255 | |
407 | |
256 | #define CORO_MAGIC(cv) \ |
408 | #define CORO_MAGIC(sv, type) \ |
257 | SvMAGIC (cv) \ |
409 | SvMAGIC (sv) \ |
258 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
410 | ? SvMAGIC (sv)->mg_type == type \ |
259 | ? SvMAGIC (cv) \ |
411 | ? SvMAGIC (sv) \ |
260 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
412 | : mg_find (sv, type) \ |
261 | : 0 |
413 | : 0 |
|
|
414 | |
|
|
415 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
416 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
417 | |
|
|
418 | INLINE struct coro * |
|
|
419 | SvSTATE_ (pTHX_ SV *coro) |
|
|
420 | { |
|
|
421 | HV *stash; |
|
|
422 | MAGIC *mg; |
|
|
423 | |
|
|
424 | if (SvROK (coro)) |
|
|
425 | coro = SvRV (coro); |
|
|
426 | |
|
|
427 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
428 | croak ("Coro::State object required"); |
|
|
429 | |
|
|
430 | stash = SvSTASH (coro); |
|
|
431 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
432 | { |
|
|
433 | /* very slow, but rare, check */ |
|
|
434 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
435 | croak ("Coro::State object required"); |
|
|
436 | } |
|
|
437 | |
|
|
438 | mg = CORO_MAGIC_state (coro); |
|
|
439 | return (struct coro *)mg->mg_ptr; |
|
|
440 | } |
|
|
441 | |
|
|
442 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
262 | |
443 | |
263 | /* the next two functions merely cache the padlists */ |
444 | /* the next two functions merely cache the padlists */ |
264 | static void |
445 | static void |
265 | get_padlist (CV *cv) |
446 | get_padlist (pTHX_ CV *cv) |
266 | { |
447 | { |
267 | MAGIC *mg = CORO_MAGIC (cv); |
448 | MAGIC *mg = CORO_MAGIC_cv (cv); |
268 | AV *av; |
449 | AV *av; |
269 | |
450 | |
270 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
451 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
271 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
452 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
272 | else |
453 | else |
273 | { |
454 | { |
274 | #if PREFER_PERL_FUNCTIONS |
455 | #if CORO_PREFER_PERL_FUNCTIONS |
275 | /* this is probably cleaner, but also slower? */ |
456 | /* this is probably cleaner? but also slower! */ |
|
|
457 | /* in practise, it seems to be less stable */ |
276 | CV *cp = Perl_cv_clone (cv); |
458 | CV *cp = Perl_cv_clone (cv); |
277 | CvPADLIST (cv) = CvPADLIST (cp); |
459 | CvPADLIST (cv) = CvPADLIST (cp); |
278 | CvPADLIST (cp) = 0; |
460 | CvPADLIST (cp) = 0; |
279 | SvREFCNT_dec (cp); |
461 | SvREFCNT_dec (cp); |
280 | #else |
462 | #else |
281 | CvPADLIST (cv) = coro_clone_padlist (cv); |
463 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
282 | #endif |
464 | #endif |
283 | } |
465 | } |
284 | } |
466 | } |
285 | |
467 | |
286 | static void |
468 | static void |
287 | put_padlist (CV *cv) |
469 | put_padlist (pTHX_ CV *cv) |
288 | { |
470 | { |
289 | MAGIC *mg = CORO_MAGIC (cv); |
471 | MAGIC *mg = CORO_MAGIC_cv (cv); |
290 | AV *av; |
472 | AV *av; |
291 | |
473 | |
292 | if (!mg) |
474 | if (expect_false (!mg)) |
293 | { |
475 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
294 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
295 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
296 | mg->mg_virtual = &vtbl_coro; |
|
|
297 | mg->mg_obj = (SV *)newAV (); |
|
|
298 | } |
|
|
299 | |
476 | |
300 | av = (AV *)mg->mg_obj; |
477 | av = (AV *)mg->mg_obj; |
301 | |
478 | |
302 | if (AvFILLp (av) >= AvMAX (av)) |
479 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
303 | av_extend (av, AvMAX (av) + 1); |
480 | av_extend (av, AvMAX (av) + 1); |
304 | |
481 | |
305 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
482 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
306 | } |
483 | } |
307 | |
484 | |
308 | #define SB do { |
485 | /** load & save, init *******************************************************/ |
309 | #define SE } while (0) |
|
|
310 | |
|
|
311 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
|
|
312 | |
486 | |
313 | static void |
487 | static void |
314 | load_perl (Coro__State c) |
488 | load_perl (pTHX_ Coro__State c) |
315 | { |
489 | { |
|
|
490 | perl_slots *slot = c->slot; |
|
|
491 | c->slot = 0; |
|
|
492 | |
|
|
493 | PL_mainstack = c->mainstack; |
|
|
494 | |
|
|
495 | GvSV (PL_defgv) = slot->defsv; |
|
|
496 | GvAV (PL_defgv) = slot->defav; |
|
|
497 | GvSV (PL_errgv) = slot->errsv; |
|
|
498 | GvSV (irsgv) = slot->irsgv; |
|
|
499 | |
316 | #define VAR(name,type) PL_ ## name = c->name; |
500 | #define VAR(name,type) PL_ ## name = slot->name; |
317 | # include "state.h" |
501 | # include "state.h" |
318 | #undef VAR |
502 | #undef VAR |
319 | |
|
|
320 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
|
|
321 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
|
|
322 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
323 | if (c->irssv) |
|
|
324 | { |
|
|
325 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
326 | SvREFCNT_dec (c->irssv); |
|
|
327 | else |
|
|
328 | { |
|
|
329 | REPLACE_SV (PL_rs, c->irssv); |
|
|
330 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
331 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
332 | } |
|
|
333 | } |
|
|
334 | |
503 | |
335 | { |
504 | { |
336 | dSP; |
505 | dSP; |
|
|
506 | |
337 | CV *cv; |
507 | CV *cv; |
338 | |
508 | |
339 | /* now do the ugly restore mess */ |
509 | /* now do the ugly restore mess */ |
340 | while ((cv = (CV *)POPs)) |
510 | while (expect_true (cv = (CV *)POPs)) |
341 | { |
511 | { |
342 | put_padlist (cv); /* mark this padlist as available */ |
512 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
343 | CvDEPTH (cv) = PTR2IV (POPs); |
513 | CvDEPTH (cv) = PTR2IV (POPs); |
344 | CvPADLIST (cv) = (AV *)POPs; |
514 | CvPADLIST (cv) = (AV *)POPs; |
345 | } |
515 | } |
346 | |
516 | |
347 | PUTBACK; |
517 | PUTBACK; |
348 | } |
518 | } |
349 | } |
519 | } |
350 | |
520 | |
351 | static void |
521 | static void |
352 | save_perl (Coro__State c) |
522 | save_perl (pTHX_ Coro__State c) |
353 | { |
523 | { |
354 | { |
524 | { |
355 | dSP; |
525 | dSP; |
356 | I32 cxix = cxstack_ix; |
526 | I32 cxix = cxstack_ix; |
357 | PERL_CONTEXT *ccstk = cxstack; |
527 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
360 | /* |
530 | /* |
361 | * the worst thing you can imagine happens first - we have to save |
531 | * the worst thing you can imagine happens first - we have to save |
362 | * (and reinitialize) all cv's in the whole callchain :( |
532 | * (and reinitialize) all cv's in the whole callchain :( |
363 | */ |
533 | */ |
364 | |
534 | |
365 | EXTEND (SP, 3 + 1); |
|
|
366 | PUSHs (Nullsv); |
535 | XPUSHs (Nullsv); |
367 | /* this loop was inspired by pp_caller */ |
536 | /* this loop was inspired by pp_caller */ |
368 | for (;;) |
537 | for (;;) |
369 | { |
538 | { |
370 | while (cxix >= 0) |
539 | while (expect_true (cxix >= 0)) |
371 | { |
540 | { |
372 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
541 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
373 | |
542 | |
374 | if (CxTYPE (cx) == CXt_SUB) |
543 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
375 | { |
544 | { |
376 | CV *cv = cx->blk_sub.cv; |
545 | CV *cv = cx->blk_sub.cv; |
377 | |
546 | |
378 | if (CvDEPTH (cv)) |
547 | if (expect_true (CvDEPTH (cv))) |
379 | { |
548 | { |
380 | EXTEND (SP, 3); |
549 | EXTEND (SP, 3); |
381 | PUSHs ((SV *)CvPADLIST (cv)); |
550 | PUSHs ((SV *)CvPADLIST (cv)); |
382 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
551 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
383 | PUSHs ((SV *)cv); |
552 | PUSHs ((SV *)cv); |
384 | |
553 | |
385 | CvDEPTH (cv) = 0; |
554 | CvDEPTH (cv) = 0; |
386 | get_padlist (cv); |
555 | get_padlist (aTHX_ cv); |
387 | } |
556 | } |
388 | } |
557 | } |
389 | } |
558 | } |
390 | |
559 | |
391 | if (top_si->si_type == PERLSI_MAIN) |
560 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
392 | break; |
561 | break; |
393 | |
562 | |
394 | top_si = top_si->si_prev; |
563 | top_si = top_si->si_prev; |
395 | ccstk = top_si->si_cxstack; |
564 | ccstk = top_si->si_cxstack; |
396 | cxix = top_si->si_cxix; |
565 | cxix = top_si->si_cxix; |
397 | } |
566 | } |
398 | |
567 | |
399 | PUTBACK; |
568 | PUTBACK; |
400 | } |
569 | } |
401 | |
570 | |
402 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
571 | /* allocate some space on the context stack for our purposes */ |
403 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
572 | /* we manually unroll here, as usually 2 slots is enough */ |
404 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
573 | if (SLOT_COUNT >= 1) CXINC; |
405 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
574 | if (SLOT_COUNT >= 2) CXINC; |
|
|
575 | if (SLOT_COUNT >= 3) CXINC; |
|
|
576 | { |
|
|
577 | int i; |
|
|
578 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
579 | CXINC; |
|
|
580 | } |
|
|
581 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
406 | |
582 | |
|
|
583 | c->mainstack = PL_mainstack; |
|
|
584 | |
|
|
585 | { |
|
|
586 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
587 | |
|
|
588 | slot->defav = GvAV (PL_defgv); |
|
|
589 | slot->defsv = DEFSV; |
|
|
590 | slot->errsv = ERRSV; |
|
|
591 | slot->irsgv = GvSV (irsgv); |
|
|
592 | |
407 | #define VAR(name,type)c->name = PL_ ## name; |
593 | #define VAR(name,type) slot->name = PL_ ## name; |
408 | # include "state.h" |
594 | # include "state.h" |
409 | #undef VAR |
595 | #undef VAR |
|
|
596 | } |
410 | } |
597 | } |
411 | |
598 | |
412 | /* |
599 | /* |
413 | * allocate various perl stacks. This is an exact copy |
600 | * allocate various perl stacks. This is an exact copy |
414 | * of perl.c:init_stacks, except that it uses less memory |
601 | * of perl.c:init_stacks, except that it uses less memory |
415 | * on the (sometimes correct) assumption that coroutines do |
602 | * on the (sometimes correct) assumption that coroutines do |
416 | * not usually need a lot of stackspace. |
603 | * not usually need a lot of stackspace. |
417 | */ |
604 | */ |
418 | #if PREFER_PERL_FUNCTIONS |
605 | #if CORO_PREFER_PERL_FUNCTIONS |
419 | # define coro_init_stacks init_stacks |
606 | # define coro_init_stacks init_stacks |
420 | #else |
607 | #else |
421 | static void |
608 | static void |
422 | coro_init_stacks () |
609 | coro_init_stacks (pTHX) |
423 | { |
610 | { |
424 | PL_curstackinfo = new_stackinfo(128, 1024/sizeof(PERL_CONTEXT)); |
611 | PL_curstackinfo = new_stackinfo(32, 8); |
425 | PL_curstackinfo->si_type = PERLSI_MAIN; |
612 | PL_curstackinfo->si_type = PERLSI_MAIN; |
426 | PL_curstack = PL_curstackinfo->si_stack; |
613 | PL_curstack = PL_curstackinfo->si_stack; |
427 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
614 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
428 | |
615 | |
429 | PL_stack_base = AvARRAY(PL_curstack); |
616 | PL_stack_base = AvARRAY(PL_curstack); |
430 | PL_stack_sp = PL_stack_base; |
617 | PL_stack_sp = PL_stack_base; |
431 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
618 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
432 | |
619 | |
433 | New(50,PL_tmps_stack,128,SV*); |
620 | New(50,PL_tmps_stack,32,SV*); |
434 | PL_tmps_floor = -1; |
621 | PL_tmps_floor = -1; |
435 | PL_tmps_ix = -1; |
622 | PL_tmps_ix = -1; |
436 | PL_tmps_max = 128; |
623 | PL_tmps_max = 32; |
437 | |
624 | |
438 | New(54,PL_markstack,32,I32); |
625 | New(54,PL_markstack,16,I32); |
439 | PL_markstack_ptr = PL_markstack; |
626 | PL_markstack_ptr = PL_markstack; |
440 | PL_markstack_max = PL_markstack + 32; |
627 | PL_markstack_max = PL_markstack + 16; |
441 | |
628 | |
442 | #ifdef SET_MARK_OFFSET |
629 | #ifdef SET_MARK_OFFSET |
443 | SET_MARK_OFFSET; |
630 | SET_MARK_OFFSET; |
444 | #endif |
631 | #endif |
445 | |
632 | |
446 | New(54,PL_scopestack,32,I32); |
633 | New(54,PL_scopestack,8,I32); |
447 | PL_scopestack_ix = 0; |
634 | PL_scopestack_ix = 0; |
448 | PL_scopestack_max = 32; |
635 | PL_scopestack_max = 8; |
449 | |
636 | |
450 | New(54,PL_savestack,64,ANY); |
637 | New(54,PL_savestack,24,ANY); |
451 | PL_savestack_ix = 0; |
638 | PL_savestack_ix = 0; |
452 | PL_savestack_max = 64; |
639 | PL_savestack_max = 24; |
453 | |
640 | |
454 | #if !PERL_VERSION_ATLEAST (5,9,0) |
641 | #if !PERL_VERSION_ATLEAST (5,10,0) |
455 | New(54,PL_retstack,16,OP*); |
642 | New(54,PL_retstack,4,OP*); |
456 | PL_retstack_ix = 0; |
643 | PL_retstack_ix = 0; |
457 | PL_retstack_max = 16; |
644 | PL_retstack_max = 4; |
458 | #endif |
645 | #endif |
459 | } |
646 | } |
460 | #endif |
647 | #endif |
461 | |
648 | |
462 | /* |
649 | /* |
463 | * destroy the stacks, the callchain etc... |
650 | * destroy the stacks, the callchain etc... |
464 | */ |
651 | */ |
465 | static void |
652 | static void |
466 | coro_destroy_stacks () |
653 | coro_destruct_stacks (pTHX) |
467 | { |
654 | { |
468 | if (!IN_DESTRUCT) |
|
|
469 | { |
|
|
470 | /* restore all saved variables and stuff */ |
|
|
471 | LEAVE_SCOPE (0); |
|
|
472 | assert (PL_tmps_floor == -1); |
|
|
473 | |
|
|
474 | /* free all temporaries */ |
|
|
475 | FREETMPS; |
|
|
476 | assert (PL_tmps_ix == -1); |
|
|
477 | |
|
|
478 | /* unwind all extra stacks */ |
|
|
479 | POPSTACK_TO (PL_mainstack); |
|
|
480 | |
|
|
481 | /* unwind main stack */ |
|
|
482 | dounwind (-1); |
|
|
483 | } |
|
|
484 | |
|
|
485 | while (PL_curstackinfo->si_next) |
655 | while (PL_curstackinfo->si_next) |
486 | PL_curstackinfo = PL_curstackinfo->si_next; |
656 | PL_curstackinfo = PL_curstackinfo->si_next; |
487 | |
657 | |
488 | while (PL_curstackinfo) |
658 | while (PL_curstackinfo) |
489 | { |
659 | { |
… | |
… | |
499 | |
669 | |
500 | Safefree (PL_tmps_stack); |
670 | Safefree (PL_tmps_stack); |
501 | Safefree (PL_markstack); |
671 | Safefree (PL_markstack); |
502 | Safefree (PL_scopestack); |
672 | Safefree (PL_scopestack); |
503 | Safefree (PL_savestack); |
673 | Safefree (PL_savestack); |
504 | #if !PERL_VERSION_ATLEAST (5,9,0) |
674 | #if !PERL_VERSION_ATLEAST (5,10,0) |
505 | Safefree (PL_retstack); |
675 | Safefree (PL_retstack); |
506 | #endif |
676 | #endif |
507 | } |
677 | } |
508 | |
678 | |
|
|
679 | static size_t |
|
|
680 | coro_rss (pTHX_ struct coro *coro) |
|
|
681 | { |
|
|
682 | size_t rss = sizeof (*coro); |
|
|
683 | |
|
|
684 | if (coro->mainstack) |
|
|
685 | { |
|
|
686 | perl_slots tmp_slot; |
|
|
687 | perl_slots *slot; |
|
|
688 | |
|
|
689 | if (coro->flags & CF_RUNNING) |
|
|
690 | { |
|
|
691 | slot = &tmp_slot; |
|
|
692 | |
|
|
693 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
694 | # include "state.h" |
|
|
695 | #undef VAR |
|
|
696 | } |
|
|
697 | else |
|
|
698 | slot = coro->slot; |
|
|
699 | |
|
|
700 | if (slot) |
|
|
701 | { |
|
|
702 | rss += sizeof (slot->curstackinfo); |
|
|
703 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
704 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
|
|
705 | rss += slot->tmps_max * sizeof (SV *); |
|
|
706 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
707 | rss += slot->scopestack_max * sizeof (I32); |
|
|
708 | rss += slot->savestack_max * sizeof (ANY); |
|
|
709 | |
|
|
710 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
711 | rss += slot->retstack_max * sizeof (OP *); |
|
|
712 | #endif |
|
|
713 | } |
|
|
714 | } |
|
|
715 | |
|
|
716 | return rss; |
|
|
717 | } |
|
|
718 | |
|
|
719 | /** set stacklevel support **************************************************/ |
|
|
720 | |
|
|
721 | /* we sometimes need to create the effect of pp_set_stacklevel calling us */ |
|
|
722 | #define SSL_HEAD (void)0 |
|
|
723 | /* we sometimes need to create the effect of leaving via pp_set_stacklevel */ |
|
|
724 | #define SSL_TAIL set_stacklevel_tail (aTHX) |
|
|
725 | |
|
|
726 | INLINE void |
|
|
727 | set_stacklevel_tail (pTHX) |
|
|
728 | { |
|
|
729 | dSP; |
|
|
730 | SV **bot = SP; |
|
|
731 | |
|
|
732 | int gimme = GIMME_V; |
|
|
733 | |
|
|
734 | /* make sure we put something on the stack in scalar context */ |
|
|
735 | if (gimme == G_SCALAR) |
|
|
736 | { |
|
|
737 | if (sp == bot) |
|
|
738 | XPUSHs (&PL_sv_undef); |
|
|
739 | |
|
|
740 | SP = bot + 1; |
|
|
741 | } |
|
|
742 | |
|
|
743 | PUTBACK; |
|
|
744 | } |
|
|
745 | |
|
|
746 | /** coroutine stack handling ************************************************/ |
|
|
747 | |
|
|
748 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
749 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
750 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
751 | |
|
|
752 | /* apparently < 5.8.8 */ |
|
|
753 | #ifndef MgPV_nolen_const |
|
|
754 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
755 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
756 | (const char*)(mg)->mg_ptr) |
|
|
757 | #endif |
|
|
758 | |
|
|
759 | /* |
|
|
760 | * This overrides the default magic get method of %SIG elements. |
|
|
761 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
762 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
763 | * readback here. |
|
|
764 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
765 | * not expecting this to actually change the hook. This is a potential problem |
|
|
766 | * when a schedule happens then, but we ignore this. |
|
|
767 | */ |
|
|
768 | static int |
|
|
769 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
770 | { |
|
|
771 | const char *s = MgPV_nolen_const (mg); |
|
|
772 | |
|
|
773 | if (*s == '_') |
|
|
774 | { |
|
|
775 | SV **svp = 0; |
|
|
776 | |
|
|
777 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
778 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
779 | |
|
|
780 | if (svp) |
|
|
781 | { |
|
|
782 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
783 | return 0; |
|
|
784 | } |
|
|
785 | } |
|
|
786 | |
|
|
787 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
788 | } |
|
|
789 | |
|
|
790 | static int |
|
|
791 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
792 | { |
|
|
793 | const char *s = MgPV_nolen_const (mg); |
|
|
794 | |
|
|
795 | if (*s == '_') |
|
|
796 | { |
|
|
797 | SV **svp = 0; |
|
|
798 | |
|
|
799 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
800 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
801 | |
|
|
802 | if (svp) |
|
|
803 | { |
|
|
804 | SV *old = *svp; |
|
|
805 | *svp = 0; |
|
|
806 | SvREFCNT_dec (old); |
|
|
807 | return 0; |
|
|
808 | } |
|
|
809 | } |
|
|
810 | |
|
|
811 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
812 | } |
|
|
813 | |
|
|
814 | static int |
|
|
815 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
816 | { |
|
|
817 | const char *s = MgPV_nolen_const (mg); |
|
|
818 | |
|
|
819 | if (*s == '_') |
|
|
820 | { |
|
|
821 | SV **svp = 0; |
|
|
822 | |
|
|
823 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
824 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
825 | |
|
|
826 | if (svp) |
|
|
827 | { |
|
|
828 | SV *old = *svp; |
|
|
829 | *svp = newSVsv (sv); |
|
|
830 | SvREFCNT_dec (old); |
|
|
831 | return 0; |
|
|
832 | } |
|
|
833 | } |
|
|
834 | |
|
|
835 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
836 | } |
|
|
837 | |
509 | static void |
838 | static void |
510 | setup_coro (struct coro *coro) |
839 | coro_setup (pTHX_ struct coro *coro) |
511 | { |
840 | { |
512 | /* |
841 | /* |
513 | * emulate part of the perl startup here. |
842 | * emulate part of the perl startup here. |
514 | */ |
843 | */ |
515 | |
|
|
516 | coro_init_stacks (); |
844 | coro_init_stacks (aTHX); |
517 | |
845 | |
|
|
846 | PL_runops = RUNOPS_DEFAULT; |
518 | PL_curcop = &PL_compiling; |
847 | PL_curcop = &PL_compiling; |
519 | PL_in_eval = EVAL_NULL; |
848 | PL_in_eval = EVAL_NULL; |
|
|
849 | PL_comppad = 0; |
520 | PL_curpm = 0; |
850 | PL_curpm = 0; |
|
|
851 | PL_curpad = 0; |
521 | PL_localizing = 0; |
852 | PL_localizing = 0; |
522 | PL_dirty = 0; |
853 | PL_dirty = 0; |
523 | PL_restartop = 0; |
854 | PL_restartop = 0; |
|
|
855 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
856 | PL_parser = 0; |
|
|
857 | #endif |
|
|
858 | |
|
|
859 | /* recreate the die/warn hooks */ |
|
|
860 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
861 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
|
|
862 | |
|
|
863 | GvSV (PL_defgv) = newSV (0); |
|
|
864 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
865 | GvSV (PL_errgv) = newSV (0); |
|
|
866 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
867 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
868 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
524 | |
869 | |
525 | { |
870 | { |
526 | dSP; |
871 | dSP; |
527 | LOGOP myop; |
872 | UNOP myop; |
528 | |
873 | |
529 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
530 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
531 | |
|
|
532 | Zero (&myop, 1, LOGOP); |
874 | Zero (&myop, 1, UNOP); |
533 | myop.op_next = Nullop; |
875 | myop.op_next = Nullop; |
534 | myop.op_flags = OPf_WANT_VOID; |
876 | myop.op_flags = OPf_WANT_VOID; |
535 | |
877 | |
536 | PUSHMARK (SP); |
878 | PUSHMARK (SP); |
537 | XPUSHs ((SV *)get_cv ("Coro::State::_coro_init", FALSE)); |
879 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
538 | PUTBACK; |
880 | PUTBACK; |
539 | PL_op = (OP *)&myop; |
881 | PL_op = (OP *)&myop; |
540 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
882 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
541 | SPAGAIN; |
883 | SPAGAIN; |
542 | } |
884 | } |
543 | |
885 | |
544 | ENTER; /* necessary e.g. for dounwind */ |
886 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
887 | * likely was suspended in set_stacklevel, called from pp_set_stacklevel, |
|
|
888 | * so we have to emulate entering pp_set_stacklevel here. |
|
|
889 | */ |
|
|
890 | SSL_HEAD; |
545 | } |
891 | } |
546 | |
892 | |
547 | static void |
893 | static void |
|
|
894 | coro_destruct (pTHX_ struct coro *coro) |
|
|
895 | { |
|
|
896 | if (!IN_DESTRUCT) |
|
|
897 | { |
|
|
898 | /* restore all saved variables and stuff */ |
|
|
899 | LEAVE_SCOPE (0); |
|
|
900 | assert (PL_tmps_floor == -1); |
|
|
901 | |
|
|
902 | /* free all temporaries */ |
|
|
903 | FREETMPS; |
|
|
904 | assert (PL_tmps_ix == -1); |
|
|
905 | |
|
|
906 | /* unwind all extra stacks */ |
|
|
907 | POPSTACK_TO (PL_mainstack); |
|
|
908 | |
|
|
909 | /* unwind main stack */ |
|
|
910 | dounwind (-1); |
|
|
911 | } |
|
|
912 | |
|
|
913 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
914 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
915 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
916 | SvREFCNT_dec (PL_defoutgv); |
|
|
917 | SvREFCNT_dec (PL_rs); |
|
|
918 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
919 | |
|
|
920 | SvREFCNT_dec (PL_diehook); |
|
|
921 | SvREFCNT_dec (PL_warnhook); |
|
|
922 | |
|
|
923 | SvREFCNT_dec (coro->saved_deffh); |
|
|
924 | SvREFCNT_dec (coro->throw); |
|
|
925 | |
|
|
926 | coro_destruct_stacks (aTHX); |
|
|
927 | } |
|
|
928 | |
|
|
929 | INLINE void |
548 | free_coro_mortal () |
930 | free_coro_mortal (pTHX) |
549 | { |
931 | { |
550 | if (coro_mortal) |
932 | if (expect_true (coro_mortal)) |
551 | { |
933 | { |
552 | SvREFCNT_dec (coro_mortal); |
934 | SvREFCNT_dec (coro_mortal); |
553 | coro_mortal = 0; |
935 | coro_mortal = 0; |
554 | } |
936 | } |
555 | } |
937 | } |
556 | |
938 | |
|
|
939 | static int |
|
|
940 | runops_trace (pTHX) |
|
|
941 | { |
|
|
942 | COP *oldcop = 0; |
|
|
943 | int oldcxix = -2; |
|
|
944 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
945 | coro_cctx *cctx = coro->cctx; |
|
|
946 | |
|
|
947 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
948 | { |
|
|
949 | PERL_ASYNC_CHECK (); |
|
|
950 | |
|
|
951 | if (cctx->flags & CC_TRACE_ALL) |
|
|
952 | { |
|
|
953 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
954 | { |
|
|
955 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
956 | SV **bot, **top; |
|
|
957 | AV *av = newAV (); /* return values */ |
|
|
958 | SV **cb; |
|
|
959 | dSP; |
|
|
960 | |
|
|
961 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
962 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
963 | if (isGV (gv)) |
|
|
964 | gv_efullname3 (fullname, gv, 0); |
|
|
965 | |
|
|
966 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
967 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
968 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
969 | : bot; |
|
|
970 | |
|
|
971 | av_extend (av, top - bot); |
|
|
972 | while (bot < top) |
|
|
973 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
|
|
974 | |
|
|
975 | PL_runops = RUNOPS_DEFAULT; |
|
|
976 | ENTER; |
|
|
977 | SAVETMPS; |
|
|
978 | EXTEND (SP, 3); |
|
|
979 | PUSHMARK (SP); |
|
|
980 | PUSHs (&PL_sv_no); |
|
|
981 | PUSHs (fullname); |
|
|
982 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
983 | PUTBACK; |
|
|
984 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
985 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
986 | SPAGAIN; |
|
|
987 | FREETMPS; |
|
|
988 | LEAVE; |
|
|
989 | PL_runops = runops_trace; |
|
|
990 | } |
|
|
991 | |
|
|
992 | if (oldcop != PL_curcop) |
|
|
993 | { |
|
|
994 | oldcop = PL_curcop; |
|
|
995 | |
|
|
996 | if (PL_curcop != &PL_compiling) |
|
|
997 | { |
|
|
998 | SV **cb; |
|
|
999 | |
|
|
1000 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
1001 | { |
|
|
1002 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
1003 | |
|
|
1004 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
1005 | { |
|
|
1006 | runops_proc_t old_runops = PL_runops; |
|
|
1007 | dSP; |
|
|
1008 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
1009 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
1010 | |
|
|
1011 | if (isGV (gv)) |
|
|
1012 | gv_efullname3 (fullname, gv, 0); |
|
|
1013 | |
|
|
1014 | PL_runops = RUNOPS_DEFAULT; |
|
|
1015 | ENTER; |
|
|
1016 | SAVETMPS; |
|
|
1017 | EXTEND (SP, 3); |
|
|
1018 | PUSHMARK (SP); |
|
|
1019 | PUSHs (&PL_sv_yes); |
|
|
1020 | PUSHs (fullname); |
|
|
1021 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
1022 | PUTBACK; |
|
|
1023 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
1024 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1025 | SPAGAIN; |
|
|
1026 | FREETMPS; |
|
|
1027 | LEAVE; |
|
|
1028 | PL_runops = runops_trace; |
|
|
1029 | } |
|
|
1030 | |
|
|
1031 | oldcxix = cxstack_ix; |
|
|
1032 | } |
|
|
1033 | |
|
|
1034 | if (cctx->flags & CC_TRACE_LINE) |
|
|
1035 | { |
|
|
1036 | dSP; |
|
|
1037 | |
|
|
1038 | PL_runops = RUNOPS_DEFAULT; |
|
|
1039 | ENTER; |
|
|
1040 | SAVETMPS; |
|
|
1041 | EXTEND (SP, 3); |
|
|
1042 | PL_runops = RUNOPS_DEFAULT; |
|
|
1043 | PUSHMARK (SP); |
|
|
1044 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
1045 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
1046 | PUTBACK; |
|
|
1047 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
1048 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1049 | SPAGAIN; |
|
|
1050 | FREETMPS; |
|
|
1051 | LEAVE; |
|
|
1052 | PL_runops = runops_trace; |
|
|
1053 | } |
|
|
1054 | } |
|
|
1055 | } |
|
|
1056 | } |
|
|
1057 | } |
|
|
1058 | |
|
|
1059 | TAINT_NOT; |
|
|
1060 | return 0; |
|
|
1061 | } |
|
|
1062 | |
|
|
1063 | static void |
|
|
1064 | prepare_set_stacklevel (struct transfer_args *ta, struct coro_cctx *cctx) |
|
|
1065 | { |
|
|
1066 | ta->prev = (struct coro *)cctx; |
|
|
1067 | ta->next = 0; |
|
|
1068 | } |
|
|
1069 | |
557 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1070 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
1071 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
1072 | /* during execution of a perl program */ |
|
|
1073 | /* also initialises PL_top_env */ |
558 | static void NOINLINE |
1074 | static void NOINLINE |
559 | prepare_cctx (coro_cctx *cctx) |
1075 | cctx_prepare (pTHX_ coro_cctx *cctx) |
560 | { |
1076 | { |
561 | dSP; |
1077 | dSP; |
562 | LOGOP myop; |
1078 | UNOP myop; |
563 | |
1079 | |
|
|
1080 | PL_top_env = &PL_start_env; |
|
|
1081 | |
|
|
1082 | if (cctx->flags & CC_TRACE) |
|
|
1083 | PL_runops = runops_trace; |
|
|
1084 | |
564 | Zero (&myop, 1, LOGOP); |
1085 | Zero (&myop, 1, UNOP); |
565 | myop.op_next = PL_op; |
1086 | myop.op_next = PL_op; |
566 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1087 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
567 | |
1088 | |
568 | PUSHMARK (SP); |
1089 | PUSHMARK (SP); |
569 | EXTEND (SP, 2); |
1090 | EXTEND (SP, 2); |
570 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1091 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
571 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1092 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
572 | PUTBACK; |
1093 | PUTBACK; |
573 | PL_op = (OP *)&myop; |
1094 | PL_op = (OP *)&myop; |
574 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1095 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
575 | SPAGAIN; |
1096 | SPAGAIN; |
576 | } |
1097 | } |
577 | |
1098 | |
|
|
1099 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1100 | INLINE void |
|
|
1101 | transfer_tail (pTHX) |
|
|
1102 | { |
|
|
1103 | struct coro *next = (struct coro *)transfer_next; |
|
|
1104 | assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
|
|
1105 | assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next)); |
|
|
1106 | |
|
|
1107 | free_coro_mortal (aTHX); |
|
|
1108 | UNLOCK; |
|
|
1109 | |
|
|
1110 | if (expect_false (next->throw)) |
|
|
1111 | { |
|
|
1112 | SV *exception = sv_2mortal (next->throw); |
|
|
1113 | |
|
|
1114 | next->throw = 0; |
|
|
1115 | sv_setsv (ERRSV, exception); |
|
|
1116 | croak (0); |
|
|
1117 | } |
|
|
1118 | } |
|
|
1119 | |
|
|
1120 | /* |
|
|
1121 | * this is a _very_ stripped down perl interpreter ;) |
|
|
1122 | */ |
578 | static void |
1123 | static void |
579 | coro_run (void *arg) |
1124 | cctx_run (void *arg) |
580 | { |
1125 | { |
|
|
1126 | #ifdef USE_ITHREADS |
|
|
1127 | # if CORO_PTHREAD |
|
|
1128 | PERL_SET_CONTEXT (coro_thx); |
|
|
1129 | # endif |
|
|
1130 | #endif |
|
|
1131 | { |
|
|
1132 | dTHX; |
|
|
1133 | |
|
|
1134 | /* we are the alternative tail to pp_set_stacklevel */ |
|
|
1135 | /* so do the same things here */ |
|
|
1136 | SSL_TAIL; |
|
|
1137 | |
|
|
1138 | /* we now skip the op that did lead to transfer() */ |
|
|
1139 | PL_op = PL_op->op_next; |
|
|
1140 | |
|
|
1141 | /* inject a fake subroutine call to cctx_init */ |
|
|
1142 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
|
|
1143 | |
581 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1144 | /* cctx_run is the alternative tail of transfer() */ |
582 | UNLOCK; |
1145 | transfer_tail (aTHX); |
583 | |
1146 | |
584 | /* |
|
|
585 | * this is a _very_ stripped down perl interpreter ;) |
|
|
586 | */ |
|
|
587 | PL_top_env = &PL_start_env; |
|
|
588 | |
|
|
589 | /* inject call to cctx_init */ |
|
|
590 | prepare_cctx ((coro_cctx *)arg); |
|
|
591 | |
|
|
592 | /* somebody will hit me for both perl_run and PL_restartop */ |
1147 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
593 | PL_restartop = PL_op; |
1148 | PL_restartop = PL_op; |
594 | perl_run (PL_curinterp); |
1149 | perl_run (PL_curinterp); |
595 | |
1150 | |
596 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting. Did you call exit in a coroutine?\n", stderr); |
1151 | /* |
597 | abort (); |
1152 | * If perl-run returns we assume exit() was being called or the coro |
|
|
1153 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
1154 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
1155 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
1156 | * coroutine as Coro has no such concept |
|
|
1157 | */ |
|
|
1158 | PL_top_env = main_top_env; |
|
|
1159 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1160 | } |
598 | } |
1161 | } |
599 | |
1162 | |
600 | static coro_cctx * |
1163 | static coro_cctx * |
601 | cctx_new () |
1164 | cctx_new () |
602 | { |
1165 | { |
603 | coro_cctx *cctx; |
1166 | coro_cctx *cctx; |
604 | |
1167 | |
605 | ++cctx_count; |
1168 | ++cctx_count; |
606 | |
|
|
607 | Newz (0, cctx, 1, coro_cctx); |
1169 | New (0, cctx, 1, coro_cctx); |
|
|
1170 | |
|
|
1171 | cctx->gen = cctx_gen; |
|
|
1172 | cctx->flags = 0; |
|
|
1173 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1174 | |
|
|
1175 | return cctx; |
|
|
1176 | } |
|
|
1177 | |
|
|
1178 | /* create a new cctx only suitable as source */ |
|
|
1179 | static coro_cctx * |
|
|
1180 | cctx_new_empty () |
|
|
1181 | { |
|
|
1182 | coro_cctx *cctx = cctx_new (); |
|
|
1183 | |
|
|
1184 | cctx->sptr = 0; |
|
|
1185 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1186 | |
|
|
1187 | return cctx; |
|
|
1188 | } |
|
|
1189 | |
|
|
1190 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1191 | static coro_cctx * |
|
|
1192 | cctx_new_run () |
|
|
1193 | { |
|
|
1194 | coro_cctx *cctx = cctx_new (); |
|
|
1195 | void *stack_start; |
|
|
1196 | size_t stack_size; |
608 | |
1197 | |
609 | #if HAVE_MMAP |
1198 | #if HAVE_MMAP |
610 | |
|
|
611 | cctx->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
1199 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
612 | /* mmap supposedly does allocate-on-write for us */ |
1200 | /* mmap supposedly does allocate-on-write for us */ |
613 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1201 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
614 | |
1202 | |
615 | if (cctx->sptr == (void *)-1) |
1203 | if (cctx->sptr != (void *)-1) |
|
|
1204 | { |
|
|
1205 | #if CORO_STACKGUARD |
|
|
1206 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
1207 | #endif |
|
|
1208 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
|
|
1209 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
1210 | cctx->flags |= CC_MAPPED; |
616 | { |
1211 | } |
|
|
1212 | else |
|
|
1213 | #endif |
|
|
1214 | { |
|
|
1215 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
|
|
1216 | New (0, cctx->sptr, cctx_stacksize, long); |
|
|
1217 | |
|
|
1218 | if (!cctx->sptr) |
|
|
1219 | { |
617 | perror ("FATAL: unable to mmap stack for coroutine"); |
1220 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
618 | _exit (EXIT_FAILURE); |
1221 | _exit (EXIT_FAILURE); |
619 | } |
1222 | } |
620 | |
1223 | |
621 | # if STACKGUARD |
1224 | stack_start = cctx->sptr; |
622 | mprotect (cctx->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
1225 | stack_size = cctx->ssize; |
623 | # endif |
|
|
624 | |
|
|
625 | #else |
|
|
626 | |
|
|
627 | cctx->ssize = STACKSIZE * (long)sizeof (long); |
|
|
628 | New (0, cctx->sptr, STACKSIZE, long); |
|
|
629 | |
|
|
630 | if (!cctx->sptr) |
|
|
631 | { |
1226 | } |
632 | perror ("FATAL: unable to malloc stack for coroutine"); |
|
|
633 | _exit (EXIT_FAILURE); |
|
|
634 | } |
|
|
635 | |
1227 | |
|
|
1228 | #if CORO_USE_VALGRIND |
|
|
1229 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
636 | #endif |
1230 | #endif |
637 | |
1231 | |
638 | #if USE_VALGRIND |
1232 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
639 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ( |
|
|
640 | STACKGUARD * PAGESIZE + (char *)cctx->sptr, |
|
|
641 | cctx->ssize + (char *)cctx->sptr |
|
|
642 | ); |
|
|
643 | #endif |
|
|
644 | |
|
|
645 | coro_create (&cctx->cctx, coro_run, (void *)cctx, cctx->sptr, cctx->ssize); |
|
|
646 | |
1233 | |
647 | return cctx; |
1234 | return cctx; |
648 | } |
1235 | } |
649 | |
1236 | |
650 | static void |
1237 | static void |
… | |
… | |
652 | { |
1239 | { |
653 | if (!cctx) |
1240 | if (!cctx) |
654 | return; |
1241 | return; |
655 | |
1242 | |
656 | --cctx_count; |
1243 | --cctx_count; |
|
|
1244 | coro_destroy (&cctx->cctx); |
657 | |
1245 | |
658 | #if USE_VALGRIND |
1246 | /* coro_transfer creates new, empty cctx's */ |
|
|
1247 | if (cctx->sptr) |
|
|
1248 | { |
|
|
1249 | #if CORO_USE_VALGRIND |
659 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1250 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
660 | #endif |
1251 | #endif |
661 | |
1252 | |
662 | #if HAVE_MMAP |
1253 | #if HAVE_MMAP |
|
|
1254 | if (cctx->flags & CC_MAPPED) |
663 | munmap (cctx->sptr, cctx->ssize); |
1255 | munmap (cctx->sptr, cctx->ssize); |
664 | #else |
1256 | else |
|
|
1257 | #endif |
665 | Safefree (cctx->sptr); |
1258 | Safefree (cctx->sptr); |
666 | #endif |
1259 | } |
667 | |
1260 | |
668 | Safefree (cctx); |
1261 | Safefree (cctx); |
669 | } |
1262 | } |
670 | |
1263 | |
|
|
1264 | /* wether this cctx should be destructed */ |
|
|
1265 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
|
|
1266 | |
671 | static coro_cctx * |
1267 | static coro_cctx * |
672 | cctx_get () |
1268 | cctx_get (pTHX) |
673 | { |
1269 | { |
674 | coro_cctx *cctx; |
1270 | while (expect_true (cctx_first)) |
675 | |
|
|
676 | if (cctx_first) |
|
|
677 | { |
1271 | { |
678 | cctx = cctx_first; |
1272 | coro_cctx *cctx = cctx_first; |
679 | cctx_first = cctx->next; |
1273 | cctx_first = cctx->next; |
680 | --cctx_idle; |
1274 | --cctx_idle; |
681 | } |
1275 | |
682 | else |
1276 | if (expect_true (!CCTX_EXPIRED (cctx))) |
683 | { |
1277 | return cctx; |
684 | cctx = cctx_new (); |
1278 | |
685 | PL_op = PL_op->op_next; |
1279 | cctx_destroy (cctx); |
686 | } |
1280 | } |
687 | |
1281 | |
688 | return cctx; |
1282 | return cctx_new_run (); |
689 | } |
1283 | } |
690 | |
1284 | |
691 | static void |
1285 | static void |
692 | cctx_put (coro_cctx *cctx) |
1286 | cctx_put (coro_cctx *cctx) |
693 | { |
1287 | { |
|
|
1288 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1289 | |
694 | /* free another cctx if overlimit */ |
1290 | /* free another cctx if overlimit */ |
695 | if (cctx_idle >= MAX_IDLE_CCTX) |
1291 | if (expect_false (cctx_idle >= cctx_max_idle)) |
696 | { |
1292 | { |
697 | coro_cctx *first = cctx_first; |
1293 | coro_cctx *first = cctx_first; |
698 | cctx_first = first->next; |
1294 | cctx_first = first->next; |
699 | --cctx_idle; |
1295 | --cctx_idle; |
700 | |
1296 | |
701 | assert (!first->inuse); |
|
|
702 | cctx_destroy (first); |
1297 | cctx_destroy (first); |
703 | } |
1298 | } |
704 | |
1299 | |
705 | ++cctx_idle; |
1300 | ++cctx_idle; |
706 | cctx->next = cctx_first; |
1301 | cctx->next = cctx_first; |
707 | cctx_first = cctx; |
1302 | cctx_first = cctx; |
708 | } |
1303 | } |
709 | |
1304 | |
710 | /* never call directly, always through the coro_state_transfer global variable */ |
1305 | /** coroutine switching *****************************************************/ |
|
|
1306 | |
|
|
1307 | static void |
|
|
1308 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1309 | { |
|
|
1310 | if (expect_true (prev != next)) |
|
|
1311 | { |
|
|
1312 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1313 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
1314 | |
|
|
1315 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1316 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1317 | |
|
|
1318 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1319 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
1320 | |
|
|
1321 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
1322 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
1323 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
|
|
1324 | #endif |
|
|
1325 | } |
|
|
1326 | } |
|
|
1327 | |
|
|
1328 | /* always use the TRANSFER macro */ |
711 | static void NOINLINE |
1329 | static void NOINLINE |
712 | transfer (struct coro *prev, struct coro *next) |
1330 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
713 | { |
1331 | { |
714 | dSTACKLEVEL; |
1332 | dSTACKLEVEL; |
715 | |
1333 | |
716 | /* sometimes transfer is only called to set idle_sp */ |
1334 | /* sometimes transfer is only called to set idle_sp */ |
717 | if (!next) |
1335 | if (expect_false (!next)) |
718 | { |
1336 | { |
719 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1337 | ((coro_cctx *)prev)->idle_sp = stacklevel; |
720 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1338 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
721 | } |
1339 | } |
722 | else if (prev != next) |
1340 | else if (expect_true (prev != next)) |
723 | { |
1341 | { |
724 | coro_cctx *prev__cctx; |
1342 | coro_cctx *prev__cctx; |
725 | |
1343 | |
726 | if (prev->flags & CF_NEW) |
1344 | if (expect_false (prev->flags & CF_NEW)) |
727 | { |
1345 | { |
728 | /* create a new empty context */ |
1346 | /* create a new empty/source context */ |
729 | Newz (0, prev->cctx, 1, coro_cctx); |
1347 | prev->cctx = cctx_new_empty (); |
730 | prev->cctx->inuse = 1; |
|
|
731 | prev->flags &= ~CF_NEW; |
1348 | prev->flags &= ~CF_NEW; |
732 | prev->flags |= CF_RUNNING; |
1349 | prev->flags |= CF_RUNNING; |
733 | } |
1350 | } |
734 | |
1351 | |
735 | /*TODO: must not croak here */ |
|
|
736 | if (!prev->flags & CF_RUNNING) |
|
|
737 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
738 | |
|
|
739 | if (next->flags & CF_RUNNING) |
|
|
740 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
741 | |
|
|
742 | if (next->flags & CF_DESTROYED) |
|
|
743 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
744 | |
|
|
745 | prev->flags &= ~CF_RUNNING; |
1352 | prev->flags &= ~CF_RUNNING; |
746 | next->flags |= CF_RUNNING; |
1353 | next->flags |= CF_RUNNING; |
747 | |
1354 | |
748 | LOCK; |
1355 | LOCK; |
749 | |
1356 | |
|
|
1357 | /* first get rid of the old state */ |
|
|
1358 | save_perl (aTHX_ prev); |
|
|
1359 | |
750 | if (next->flags & CF_NEW) |
1360 | if (expect_false (next->flags & CF_NEW)) |
751 | { |
1361 | { |
752 | /* need to start coroutine */ |
1362 | /* need to start coroutine */ |
753 | next->flags &= ~CF_NEW; |
1363 | next->flags &= ~CF_NEW; |
754 | /* first get rid of the old state */ |
|
|
755 | save_perl (prev); |
|
|
756 | /* setup coroutine call */ |
1364 | /* setup coroutine call */ |
757 | setup_coro (next); |
1365 | coro_setup (aTHX_ next); |
758 | /* need a new stack */ |
|
|
759 | assert (!next->cctx); |
|
|
760 | } |
1366 | } |
761 | else |
1367 | else |
|
|
1368 | load_perl (aTHX_ next); |
|
|
1369 | |
|
|
1370 | prev__cctx = prev->cctx; |
|
|
1371 | |
|
|
1372 | /* possibly untie and reuse the cctx */ |
|
|
1373 | if (expect_true ( |
|
|
1374 | prev__cctx->idle_sp == stacklevel |
|
|
1375 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1376 | && !force_cctx |
|
|
1377 | )) |
762 | { |
1378 | { |
763 | /* coroutine already started */ |
1379 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
764 | save_perl (prev); |
1380 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
765 | load_perl (next); |
1381 | |
|
|
1382 | prev->cctx = 0; |
|
|
1383 | |
|
|
1384 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1385 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1386 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1387 | if (!next->cctx) |
|
|
1388 | next->cctx = cctx_get (aTHX); |
|
|
1389 | |
|
|
1390 | cctx_put (prev__cctx); |
766 | } |
1391 | } |
767 | |
1392 | |
768 | prev__cctx = prev->cctx; |
1393 | ++next->usecount; |
769 | |
1394 | |
770 | /* possibly "free" the cctx */ |
|
|
771 | if (prev__cctx->idle_sp == STACKLEVEL) |
|
|
772 | { |
|
|
773 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
|
|
774 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
|
|
775 | |
|
|
776 | prev->cctx = 0; |
|
|
777 | |
|
|
778 | cctx_put (prev__cctx); |
|
|
779 | prev__cctx->inuse = 0; |
|
|
780 | } |
|
|
781 | |
|
|
782 | if (!next->cctx) |
1395 | if (expect_true (!next->cctx)) |
783 | { |
|
|
784 | next->cctx = cctx_get (); |
1396 | next->cctx = cctx_get (aTHX); |
785 | assert (!next->cctx->inuse); |
|
|
786 | next->cctx->inuse = 1; |
|
|
787 | } |
|
|
788 | |
1397 | |
|
|
1398 | assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
|
|
1399 | transfer_next = next; |
|
|
1400 | |
789 | if (prev__cctx != next->cctx) |
1401 | if (expect_false (prev__cctx != next->cctx)) |
790 | { |
1402 | { |
791 | prev__cctx->top_env = PL_top_env; |
1403 | prev__cctx->top_env = PL_top_env; |
792 | PL_top_env = next->cctx->top_env; |
1404 | PL_top_env = next->cctx->top_env; |
793 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1405 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
794 | } |
1406 | } |
795 | |
1407 | |
796 | free_coro_mortal (); |
1408 | transfer_tail (aTHX); |
797 | UNLOCK; |
|
|
798 | } |
1409 | } |
799 | } |
1410 | } |
800 | |
1411 | |
801 | struct transfer_args |
1412 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
802 | { |
|
|
803 | struct coro *prev, *next; |
|
|
804 | }; |
|
|
805 | |
|
|
806 | #define TRANSFER(ta) transfer ((ta).prev, (ta).next) |
1413 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
|
|
1414 | |
|
|
1415 | /** high level stuff ********************************************************/ |
807 | |
1416 | |
808 | static int |
1417 | static int |
809 | coro_state_destroy (struct coro *coro) |
1418 | coro_state_destroy (pTHX_ struct coro *coro) |
810 | { |
1419 | { |
811 | if (coro->flags & CF_DESTROYED) |
1420 | if (coro->flags & CF_DESTROYED) |
812 | return 0; |
1421 | return 0; |
813 | |
1422 | |
814 | coro->flags |= CF_DESTROYED; |
1423 | coro->flags |= CF_DESTROYED; |
|
|
1424 | |
|
|
1425 | if (coro->flags & CF_READY) |
|
|
1426 | { |
|
|
1427 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1428 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1429 | LOCK; |
|
|
1430 | --coro_nready; |
|
|
1431 | UNLOCK; |
|
|
1432 | } |
|
|
1433 | else |
|
|
1434 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
815 | |
1435 | |
816 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1436 | if (coro->mainstack && coro->mainstack != main_mainstack) |
817 | { |
1437 | { |
818 | assert (!(coro->flags & CF_RUNNING)); |
|
|
819 | |
|
|
820 | struct coro temp; |
1438 | struct coro temp; |
821 | Zero (&temp, 1, struct coro); |
|
|
822 | temp.save = CORO_SAVE_ALL; |
|
|
823 | |
1439 | |
824 | if (coro->flags & CF_RUNNING) |
1440 | if (coro->flags & CF_RUNNING) |
825 | croak ("FATAL: tried to destroy currently running coroutine"); |
1441 | croak ("FATAL: tried to destroy currently running coroutine"); |
826 | |
1442 | |
827 | save_perl (&temp); |
1443 | save_perl (aTHX_ &temp); |
828 | load_perl (coro); |
1444 | load_perl (aTHX_ coro); |
829 | |
1445 | |
830 | coro_destroy_stacks (); |
1446 | coro_destruct (aTHX_ coro); |
831 | |
1447 | |
832 | load_perl (&temp); /* this will get rid of defsv etc.. */ |
1448 | load_perl (aTHX_ &temp); |
833 | |
1449 | |
834 | coro->mainstack = 0; |
1450 | coro->slot = 0; |
835 | } |
1451 | } |
836 | |
1452 | |
837 | cctx_destroy (coro->cctx); |
1453 | cctx_destroy (coro->cctx); |
838 | SvREFCNT_dec (coro->args); |
1454 | SvREFCNT_dec (coro->args); |
839 | |
1455 | |
|
|
1456 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1457 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1458 | if (coro == coro_first) coro_first = coro->next; |
|
|
1459 | |
840 | return 1; |
1460 | return 1; |
841 | } |
1461 | } |
842 | |
1462 | |
843 | static int |
1463 | static int |
844 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1464 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
845 | { |
1465 | { |
846 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1466 | struct coro *coro = (struct coro *)mg->mg_ptr; |
847 | mg->mg_ptr = 0; |
1467 | mg->mg_ptr = 0; |
848 | |
1468 | |
|
|
1469 | coro->hv = 0; |
|
|
1470 | |
849 | if (--coro->refcnt < 0) |
1471 | if (--coro->refcnt < 0) |
850 | { |
1472 | { |
851 | coro_state_destroy (coro); |
1473 | coro_state_destroy (aTHX_ coro); |
852 | Safefree (coro); |
1474 | Safefree (coro); |
853 | } |
1475 | } |
854 | |
1476 | |
855 | return 0; |
1477 | return 0; |
856 | } |
1478 | } |
… | |
… | |
874 | #else |
1496 | #else |
875 | # define MGf_DUP 0 |
1497 | # define MGf_DUP 0 |
876 | #endif |
1498 | #endif |
877 | }; |
1499 | }; |
878 | |
1500 | |
879 | static struct coro * |
|
|
880 | SvSTATE (SV *coro) |
|
|
881 | { |
|
|
882 | HV *stash; |
|
|
883 | MAGIC *mg; |
|
|
884 | |
|
|
885 | if (SvROK (coro)) |
|
|
886 | coro = SvRV (coro); |
|
|
887 | |
|
|
888 | stash = SvSTASH (coro); |
|
|
889 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
890 | { |
|
|
891 | /* very slow, but rare, check */ |
|
|
892 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
893 | croak ("Coro::State object required"); |
|
|
894 | } |
|
|
895 | |
|
|
896 | mg = SvMAGIC (coro); |
|
|
897 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
898 | return (struct coro *)mg->mg_ptr; |
|
|
899 | } |
|
|
900 | |
|
|
901 | static void |
1501 | static void |
902 | prepare_transfer (struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1502 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
903 | { |
1503 | { |
904 | ta->prev = SvSTATE (prev_sv); |
1504 | ta->prev = SvSTATE (prev_sv); |
905 | ta->next = SvSTATE (next_sv); |
1505 | ta->next = SvSTATE (next_sv); |
|
|
1506 | TRANSFER_CHECK (*ta); |
906 | } |
1507 | } |
907 | |
1508 | |
908 | static void |
1509 | static void |
909 | api_transfer (SV *prev_sv, SV *next_sv) |
1510 | api_transfer (SV *prev_sv, SV *next_sv) |
910 | { |
1511 | { |
|
|
1512 | dTHX; |
911 | struct transfer_args ta; |
1513 | struct transfer_args ta; |
912 | |
1514 | |
913 | prepare_transfer (&ta, prev_sv, next_sv); |
1515 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
914 | TRANSFER (ta); |
1516 | TRANSFER (ta, 1); |
915 | } |
|
|
916 | |
|
|
917 | static int |
|
|
918 | api_save (SV *coro_sv, int new_save) |
|
|
919 | { |
|
|
920 | struct coro *coro = SvSTATE (coro_sv); |
|
|
921 | int old_save = coro->save; |
|
|
922 | |
|
|
923 | if (new_save >= 0) |
|
|
924 | coro->save = new_save; |
|
|
925 | |
|
|
926 | return old_save; |
|
|
927 | } |
1517 | } |
928 | |
1518 | |
929 | /** Coro ********************************************************************/ |
1519 | /** Coro ********************************************************************/ |
930 | |
1520 | |
931 | #define PRIO_MAX 3 |
|
|
932 | #define PRIO_HIGH 1 |
|
|
933 | #define PRIO_NORMAL 0 |
|
|
934 | #define PRIO_LOW -1 |
|
|
935 | #define PRIO_IDLE -3 |
|
|
936 | #define PRIO_MIN -4 |
|
|
937 | |
|
|
938 | /* for Coro.pm */ |
|
|
939 | static SV *coro_current; |
|
|
940 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
941 | static int coro_nready; |
|
|
942 | |
|
|
943 | static void |
1521 | static void |
944 | coro_enq (SV *coro_sv) |
1522 | coro_enq (pTHX_ SV *coro_sv) |
945 | { |
1523 | { |
946 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1524 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
947 | coro_nready++; |
|
|
948 | } |
1525 | } |
949 | |
1526 | |
950 | static SV * |
1527 | static SV * |
951 | coro_deq (int min_prio) |
1528 | coro_deq (pTHX) |
952 | { |
1529 | { |
953 | int prio = PRIO_MAX - PRIO_MIN; |
1530 | int prio; |
954 | |
1531 | |
955 | min_prio -= PRIO_MIN; |
|
|
956 | if (min_prio < 0) |
|
|
957 | min_prio = 0; |
|
|
958 | |
|
|
959 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1532 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
960 | if (AvFILLp (coro_ready [prio]) >= 0) |
1533 | if (AvFILLp (coro_ready [prio]) >= 0) |
961 | { |
|
|
962 | coro_nready--; |
|
|
963 | return av_shift (coro_ready [prio]); |
1534 | return av_shift (coro_ready [prio]); |
964 | } |
|
|
965 | |
1535 | |
966 | return 0; |
1536 | return 0; |
967 | } |
1537 | } |
968 | |
1538 | |
969 | static int |
1539 | static int |
970 | api_ready (SV *coro_sv) |
1540 | api_ready (SV *coro_sv) |
971 | { |
1541 | { |
|
|
1542 | dTHX; |
972 | struct coro *coro; |
1543 | struct coro *coro; |
|
|
1544 | SV *sv_hook; |
|
|
1545 | void (*xs_hook)(void); |
973 | |
1546 | |
974 | if (SvROK (coro_sv)) |
1547 | if (SvROK (coro_sv)) |
975 | coro_sv = SvRV (coro_sv); |
1548 | coro_sv = SvRV (coro_sv); |
976 | |
1549 | |
977 | coro = SvSTATE (coro_sv); |
1550 | coro = SvSTATE (coro_sv); |
… | |
… | |
980 | return 0; |
1553 | return 0; |
981 | |
1554 | |
982 | coro->flags |= CF_READY; |
1555 | coro->flags |= CF_READY; |
983 | |
1556 | |
984 | LOCK; |
1557 | LOCK; |
|
|
1558 | |
|
|
1559 | sv_hook = coro_nready ? 0 : coro_readyhook; |
|
|
1560 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1561 | |
985 | coro_enq (SvREFCNT_inc (coro_sv)); |
1562 | coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
|
|
1563 | ++coro_nready; |
|
|
1564 | |
986 | UNLOCK; |
1565 | UNLOCK; |
|
|
1566 | |
|
|
1567 | if (sv_hook) |
|
|
1568 | { |
|
|
1569 | dSP; |
|
|
1570 | |
|
|
1571 | ENTER; |
|
|
1572 | SAVETMPS; |
|
|
1573 | |
|
|
1574 | PUSHMARK (SP); |
|
|
1575 | PUTBACK; |
|
|
1576 | call_sv (sv_hook, G_DISCARD); |
|
|
1577 | SPAGAIN; |
|
|
1578 | |
|
|
1579 | FREETMPS; |
|
|
1580 | LEAVE; |
|
|
1581 | } |
|
|
1582 | |
|
|
1583 | if (xs_hook) |
|
|
1584 | xs_hook (); |
987 | |
1585 | |
988 | return 1; |
1586 | return 1; |
989 | } |
1587 | } |
990 | |
1588 | |
991 | static int |
1589 | static int |
992 | api_is_ready (SV *coro_sv) |
1590 | api_is_ready (SV *coro_sv) |
993 | { |
1591 | { |
|
|
1592 | dTHX; |
|
|
1593 | |
994 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1594 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
995 | } |
1595 | } |
996 | |
1596 | |
997 | static void |
1597 | INLINE void |
998 | prepare_schedule (struct transfer_args *ta) |
1598 | prepare_schedule (pTHX_ struct transfer_args *ta) |
999 | { |
1599 | { |
1000 | SV *prev_sv, *next_sv; |
1600 | SV *prev_sv, *next_sv; |
1001 | |
1601 | |
1002 | for (;;) |
1602 | for (;;) |
1003 | { |
1603 | { |
1004 | LOCK; |
1604 | LOCK; |
1005 | next_sv = coro_deq (PRIO_MIN); |
1605 | next_sv = coro_deq (aTHX); |
1006 | UNLOCK; |
|
|
1007 | |
1606 | |
1008 | /* nothing to schedule: call the idle handler */ |
1607 | /* nothing to schedule: call the idle handler */ |
1009 | if (!next_sv) |
1608 | if (expect_false (!next_sv)) |
1010 | { |
1609 | { |
1011 | dSP; |
1610 | dSP; |
|
|
1611 | UNLOCK; |
1012 | |
1612 | |
1013 | ENTER; |
1613 | ENTER; |
1014 | SAVETMPS; |
1614 | SAVETMPS; |
1015 | |
1615 | |
1016 | PUSHMARK (SP); |
1616 | PUSHMARK (SP); |
1017 | PUTBACK; |
1617 | PUTBACK; |
1018 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1618 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1619 | SPAGAIN; |
1019 | |
1620 | |
1020 | FREETMPS; |
1621 | FREETMPS; |
1021 | LEAVE; |
1622 | LEAVE; |
1022 | continue; |
1623 | continue; |
1023 | } |
1624 | } |
1024 | |
1625 | |
1025 | ta->next = SvSTATE (next_sv); |
1626 | ta->next = SvSTATE (next_sv); |
1026 | |
1627 | |
1027 | /* cannot transfer to destroyed coros, skip and look for next */ |
1628 | /* cannot transfer to destroyed coros, skip and look for next */ |
1028 | if (ta->next->flags & CF_DESTROYED) |
1629 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1029 | { |
1630 | { |
|
|
1631 | UNLOCK; |
1030 | SvREFCNT_dec (next_sv); |
1632 | SvREFCNT_dec (next_sv); |
|
|
1633 | /* coro_nready has already been taken care of by destroy */ |
1031 | continue; |
1634 | continue; |
1032 | } |
1635 | } |
1033 | |
1636 | |
|
|
1637 | --coro_nready; |
|
|
1638 | UNLOCK; |
1034 | break; |
1639 | break; |
1035 | } |
1640 | } |
1036 | |
1641 | |
1037 | /* free this only after the transfer */ |
1642 | /* free this only after the transfer */ |
1038 | prev_sv = SvRV (coro_current); |
1643 | prev_sv = SvRV (coro_current); |
|
|
1644 | ta->prev = SvSTATE (prev_sv); |
|
|
1645 | TRANSFER_CHECK (*ta); |
|
|
1646 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
|
|
1647 | ta->next->flags &= ~CF_READY; |
1039 | SvRV_set (coro_current, next_sv); |
1648 | SvRV_set (coro_current, next_sv); |
1040 | ta->prev = SvSTATE (prev_sv); |
|
|
1041 | |
|
|
1042 | assert (ta->next->flags & CF_READY); |
|
|
1043 | ta->next->flags &= ~CF_READY; |
|
|
1044 | |
1649 | |
1045 | LOCK; |
1650 | LOCK; |
1046 | free_coro_mortal (); |
1651 | free_coro_mortal (aTHX); |
1047 | coro_mortal = prev_sv; |
1652 | coro_mortal = prev_sv; |
1048 | UNLOCK; |
1653 | UNLOCK; |
1049 | } |
1654 | } |
1050 | |
1655 | |
|
|
1656 | INLINE void |
|
|
1657 | prepare_cede (pTHX_ struct transfer_args *ta) |
|
|
1658 | { |
|
|
1659 | api_ready (coro_current); |
|
|
1660 | prepare_schedule (aTHX_ ta); |
|
|
1661 | } |
|
|
1662 | |
1051 | static void |
1663 | static void |
1052 | prepare_cede (struct transfer_args *ta) |
1664 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1053 | { |
1665 | { |
1054 | api_ready (coro_current); |
1666 | SV *prev = SvRV (coro_current); |
|
|
1667 | |
|
|
1668 | if (coro_nready) |
|
|
1669 | { |
|
|
1670 | prepare_schedule (aTHX_ ta); |
|
|
1671 | api_ready (prev); |
|
|
1672 | } |
|
|
1673 | else |
|
|
1674 | ta->prev = ta->next = SvSTATE (prev); |
|
|
1675 | } |
|
|
1676 | |
|
|
1677 | static void |
|
|
1678 | api_schedule (void) |
|
|
1679 | { |
|
|
1680 | dTHX; |
|
|
1681 | struct transfer_args ta; |
|
|
1682 | |
1055 | prepare_schedule (ta); |
1683 | prepare_schedule (aTHX_ &ta); |
|
|
1684 | TRANSFER (ta, 1); |
1056 | } |
1685 | } |
1057 | |
1686 | |
1058 | static int |
1687 | static int |
1059 | prepare_cede_notself (struct transfer_args *ta) |
1688 | api_cede (void) |
1060 | { |
1689 | { |
1061 | if (coro_nready) |
1690 | dTHX; |
|
|
1691 | struct transfer_args ta; |
|
|
1692 | |
|
|
1693 | prepare_cede (aTHX_ &ta); |
|
|
1694 | |
|
|
1695 | if (expect_true (ta.prev != ta.next)) |
1062 | { |
1696 | { |
1063 | SV *prev = SvRV (coro_current); |
1697 | TRANSFER (ta, 1); |
1064 | prepare_schedule (ta); |
|
|
1065 | api_ready (prev); |
|
|
1066 | return 1; |
1698 | return 1; |
1067 | } |
1699 | } |
1068 | else |
1700 | else |
1069 | return 0; |
1701 | return 0; |
1070 | } |
1702 | } |
1071 | |
1703 | |
1072 | static void |
|
|
1073 | api_schedule (void) |
|
|
1074 | { |
|
|
1075 | struct transfer_args ta; |
|
|
1076 | |
|
|
1077 | prepare_schedule (&ta); |
|
|
1078 | TRANSFER (ta); |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | static int |
1704 | static int |
1082 | api_cede (void) |
1705 | api_cede_notself (void) |
1083 | { |
1706 | { |
|
|
1707 | if (coro_nready) |
|
|
1708 | { |
|
|
1709 | dTHX; |
1084 | struct transfer_args ta; |
1710 | struct transfer_args ta; |
1085 | |
1711 | |
1086 | prepare_cede (&ta); |
1712 | prepare_cede_notself (aTHX_ &ta); |
1087 | |
|
|
1088 | if (ta.prev != ta.next) |
|
|
1089 | { |
|
|
1090 | TRANSFER (ta); |
1713 | TRANSFER (ta, 1); |
1091 | return 1; |
1714 | return 1; |
1092 | } |
1715 | } |
1093 | else |
1716 | else |
1094 | return 0; |
1717 | return 0; |
1095 | } |
1718 | } |
1096 | |
1719 | |
|
|
1720 | static void |
|
|
1721 | api_trace (SV *coro_sv, int flags) |
|
|
1722 | { |
|
|
1723 | dTHX; |
|
|
1724 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1725 | |
|
|
1726 | if (flags & CC_TRACE) |
|
|
1727 | { |
|
|
1728 | if (!coro->cctx) |
|
|
1729 | coro->cctx = cctx_new_run (); |
|
|
1730 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1731 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1732 | |
|
|
1733 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1734 | } |
|
|
1735 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1736 | { |
|
|
1737 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1738 | |
|
|
1739 | if (coro->flags & CF_RUNNING) |
|
|
1740 | PL_runops = RUNOPS_DEFAULT; |
|
|
1741 | else |
|
|
1742 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1743 | } |
|
|
1744 | } |
|
|
1745 | |
|
|
1746 | #if 0 |
1097 | static int |
1747 | static int |
1098 | api_cede_notself (void) |
1748 | coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
1099 | { |
1749 | { |
|
|
1750 | AV *padlist; |
|
|
1751 | AV *av = (AV *)mg->mg_obj; |
|
|
1752 | |
|
|
1753 | abort (); |
|
|
1754 | |
|
|
1755 | return 0; |
|
|
1756 | } |
|
|
1757 | |
|
|
1758 | static MGVTBL coro_gensub_vtbl = { |
|
|
1759 | 0, 0, 0, 0, |
|
|
1760 | coro_gensub_free |
|
|
1761 | }; |
|
|
1762 | #endif |
|
|
1763 | |
|
|
1764 | /*****************************************************************************/ |
|
|
1765 | /* PerlIO::cede */ |
|
|
1766 | |
|
|
1767 | typedef struct |
|
|
1768 | { |
|
|
1769 | PerlIOBuf base; |
|
|
1770 | NV next, every; |
|
|
1771 | } PerlIOCede; |
|
|
1772 | |
|
|
1773 | static IV |
|
|
1774 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
1775 | { |
|
|
1776 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1777 | |
|
|
1778 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
1779 | self->next = nvtime () + self->every; |
|
|
1780 | |
|
|
1781 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
1782 | } |
|
|
1783 | |
|
|
1784 | static SV * |
|
|
1785 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
1786 | { |
|
|
1787 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1788 | |
|
|
1789 | return newSVnv (self->every); |
|
|
1790 | } |
|
|
1791 | |
|
|
1792 | static IV |
|
|
1793 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
1794 | { |
|
|
1795 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1796 | double now = nvtime (); |
|
|
1797 | |
|
|
1798 | if (now >= self->next) |
|
|
1799 | { |
|
|
1800 | api_cede (); |
|
|
1801 | self->next = now + self->every; |
|
|
1802 | } |
|
|
1803 | |
|
|
1804 | return PerlIOBuf_flush (aTHX_ f); |
|
|
1805 | } |
|
|
1806 | |
|
|
1807 | static PerlIO_funcs PerlIO_cede = |
|
|
1808 | { |
|
|
1809 | sizeof(PerlIO_funcs), |
|
|
1810 | "cede", |
|
|
1811 | sizeof(PerlIOCede), |
|
|
1812 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
1813 | PerlIOCede_pushed, |
|
|
1814 | PerlIOBuf_popped, |
|
|
1815 | PerlIOBuf_open, |
|
|
1816 | PerlIOBase_binmode, |
|
|
1817 | PerlIOCede_getarg, |
|
|
1818 | PerlIOBase_fileno, |
|
|
1819 | PerlIOBuf_dup, |
|
|
1820 | PerlIOBuf_read, |
|
|
1821 | PerlIOBuf_unread, |
|
|
1822 | PerlIOBuf_write, |
|
|
1823 | PerlIOBuf_seek, |
|
|
1824 | PerlIOBuf_tell, |
|
|
1825 | PerlIOBuf_close, |
|
|
1826 | PerlIOCede_flush, |
|
|
1827 | PerlIOBuf_fill, |
|
|
1828 | PerlIOBase_eof, |
|
|
1829 | PerlIOBase_error, |
|
|
1830 | PerlIOBase_clearerr, |
|
|
1831 | PerlIOBase_setlinebuf, |
|
|
1832 | PerlIOBuf_get_base, |
|
|
1833 | PerlIOBuf_bufsiz, |
|
|
1834 | PerlIOBuf_get_ptr, |
|
|
1835 | PerlIOBuf_get_cnt, |
|
|
1836 | PerlIOBuf_set_ptrcnt, |
|
|
1837 | }; |
|
|
1838 | |
|
|
1839 | /*****************************************************************************/ |
|
|
1840 | |
|
|
1841 | static const CV *ssl_cv; /* for quick consistency check */ |
|
|
1842 | |
|
|
1843 | static UNOP ssl_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1844 | static SV *ssl_arg0; |
|
|
1845 | static SV *ssl_arg1; |
|
|
1846 | |
|
|
1847 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1848 | /* recreate the stack frame as perl will on following calls */ |
|
|
1849 | /* since entersub cleared the stack */ |
|
|
1850 | static OP * |
|
|
1851 | pp_restore (pTHX) |
|
|
1852 | { |
|
|
1853 | dSP; |
|
|
1854 | |
|
|
1855 | PUSHMARK (SP); |
|
|
1856 | |
|
|
1857 | EXTEND (SP, 3); |
|
|
1858 | if (ssl_arg0) PUSHs (sv_2mortal (ssl_arg0)), ssl_arg0 = 0; |
|
|
1859 | if (ssl_arg1) PUSHs (sv_2mortal (ssl_arg1)), ssl_arg1 = 0; |
|
|
1860 | PUSHs ((SV *)CvGV (ssl_cv)); |
|
|
1861 | |
|
|
1862 | RETURNOP (ssl_restore.op_first); |
|
|
1863 | } |
|
|
1864 | |
|
|
1865 | #define OPpENTERSUB_SSL 15 /* the part of op_private entersub hopefully doesn't use */ |
|
|
1866 | |
|
|
1867 | /* declare prototype */ |
|
|
1868 | XS(XS_Coro__State__set_stacklevel); |
|
|
1869 | |
|
|
1870 | /* |
|
|
1871 | * these not obviously related functions are all rolled into one |
|
|
1872 | * function to increase chances that they all will call transfer with the same |
|
|
1873 | * stack offset |
|
|
1874 | */ |
|
|
1875 | static OP * |
|
|
1876 | pp_set_stacklevel (pTHX) |
|
|
1877 | { |
|
|
1878 | dSP; |
1100 | struct transfer_args ta; |
1879 | struct transfer_args ta; |
|
|
1880 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1881 | int items = SP - arg; /* args without function object */ |
1101 | |
1882 | |
1102 | if (prepare_cede_notself (&ta)) |
1883 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1884 | /* for us, divert to the real entersub */ |
|
|
1885 | if (SvTYPE (*sp) != SVt_PVGV || CvXSUB (GvCV (*sp)) != XS_Coro__State__set_stacklevel) |
|
|
1886 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1887 | |
|
|
1888 | /* pop args */ |
|
|
1889 | SP = PL_stack_base + POPMARK; |
|
|
1890 | |
|
|
1891 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1892 | { |
|
|
1893 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1894 | AV *av = GvAV (PL_defgv); |
|
|
1895 | arg = AvARRAY (av); |
|
|
1896 | items = AvFILLp (av) + 1; |
1103 | { |
1897 | } |
|
|
1898 | |
|
|
1899 | PUTBACK; |
|
|
1900 | switch (PL_op->op_private & OPpENTERSUB_SSL) |
|
|
1901 | { |
|
|
1902 | case 0: |
|
|
1903 | prepare_set_stacklevel (&ta, (struct coro_cctx *)SvIV (arg [0])); |
|
|
1904 | break; |
|
|
1905 | |
|
|
1906 | case 1: |
|
|
1907 | if (items != 2) |
|
|
1908 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d.", items); |
|
|
1909 | |
|
|
1910 | prepare_transfer (aTHX_ &ta, arg [0], arg [1]); |
|
|
1911 | break; |
|
|
1912 | |
|
|
1913 | case 2: |
|
|
1914 | prepare_schedule (aTHX_ &ta); |
|
|
1915 | break; |
|
|
1916 | |
|
|
1917 | case 3: |
|
|
1918 | prepare_cede (aTHX_ &ta); |
|
|
1919 | break; |
|
|
1920 | |
|
|
1921 | case 4: |
|
|
1922 | prepare_cede_notself (aTHX_ &ta); |
|
|
1923 | break; |
|
|
1924 | } |
|
|
1925 | |
1104 | TRANSFER (ta); |
1926 | TRANSFER (ta, 0); |
1105 | return 1; |
1927 | SPAGAIN; |
1106 | } |
|
|
1107 | else |
|
|
1108 | return 0; |
|
|
1109 | } |
|
|
1110 | |
1928 | |
|
|
1929 | skip: |
|
|
1930 | PUTBACK; |
|
|
1931 | SSL_TAIL; |
|
|
1932 | SPAGAIN; |
|
|
1933 | RETURN; |
|
|
1934 | } |
|
|
1935 | |
|
|
1936 | static void |
|
|
1937 | coro_ssl_patch (pTHX_ CV *cv, int ix, SV **args, int items) |
|
|
1938 | { |
|
|
1939 | assert (("FATAL: ssl call recursion in Coro module (please report)", PL_op->op_ppaddr != pp_set_stacklevel)); |
|
|
1940 | |
|
|
1941 | assert (("FATAL: ssl call with illegal CV value", CvGV (cv))); |
|
|
1942 | ssl_cv = cv; |
|
|
1943 | |
|
|
1944 | /* we patch the op, and then re-run the whole call */ |
|
|
1945 | /* we have to put some dummy argument on the stack for this to work */ |
|
|
1946 | ssl_restore.op_next = (OP *)&ssl_restore; |
|
|
1947 | ssl_restore.op_type = OP_NULL; |
|
|
1948 | ssl_restore.op_ppaddr = pp_restore; |
|
|
1949 | ssl_restore.op_first = PL_op; |
|
|
1950 | |
|
|
1951 | ssl_arg0 = items > 0 ? SvREFCNT_inc (args [0]) : 0; |
|
|
1952 | ssl_arg1 = items > 1 ? SvREFCNT_inc (args [1]) : 0; |
|
|
1953 | |
|
|
1954 | PL_op->op_ppaddr = pp_set_stacklevel; |
|
|
1955 | PL_op->op_private = PL_op->op_private & ~OPpENTERSUB_SSL | ix; /* we potentially share our private flags with entersub */ |
|
|
1956 | |
|
|
1957 | PL_op = (OP *)&ssl_restore; |
|
|
1958 | } |
|
|
1959 | |
1111 | MODULE = Coro::State PACKAGE = Coro::State |
1960 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1112 | |
1961 | |
1113 | PROTOTYPES: DISABLE |
1962 | PROTOTYPES: DISABLE |
1114 | |
1963 | |
1115 | BOOT: |
1964 | BOOT: |
1116 | { |
1965 | { |
1117 | #ifdef USE_ITHREADS |
1966 | #ifdef USE_ITHREADS |
1118 | MUTEX_INIT (&coro_mutex); |
1967 | MUTEX_INIT (&coro_lock); |
|
|
1968 | # if CORO_PTHREAD |
|
|
1969 | coro_thx = PERL_GET_CONTEXT; |
|
|
1970 | # endif |
1119 | #endif |
1971 | #endif |
1120 | BOOT_PAGESIZE; |
1972 | BOOT_PAGESIZE; |
1121 | |
1973 | |
|
|
1974 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1975 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1976 | |
|
|
1977 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
1978 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
1979 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
1980 | |
|
|
1981 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
1982 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
1983 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
|
|
1984 | |
1122 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1985 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1123 | |
1986 | |
|
|
1987 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
|
|
1988 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1124 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1989 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1125 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
|
|
1126 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1127 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1128 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1990 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1129 | |
1991 | |
1130 | main_mainstack = PL_mainstack; |
1992 | main_mainstack = PL_mainstack; |
|
|
1993 | main_top_env = PL_top_env; |
1131 | |
1994 | |
|
|
1995 | while (main_top_env->je_prev) |
|
|
1996 | main_top_env = main_top_env->je_prev; |
|
|
1997 | |
1132 | coroapi.ver = CORO_API_VERSION; |
1998 | coroapi.ver = CORO_API_VERSION; |
|
|
1999 | coroapi.rev = CORO_API_REVISION; |
1133 | coroapi.transfer = api_transfer; |
2000 | coroapi.transfer = api_transfer; |
|
|
2001 | |
|
|
2002 | { |
|
|
2003 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
2004 | |
|
|
2005 | if (!svp) croak ("Time::HiRes is required"); |
|
|
2006 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
2007 | |
|
|
2008 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
2009 | } |
1134 | |
2010 | |
1135 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2011 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1136 | } |
2012 | } |
1137 | |
2013 | |
1138 | SV * |
2014 | SV * |
1139 | new (char *klass, ...) |
2015 | new (char *klass, ...) |
1140 | CODE: |
2016 | CODE: |
1141 | { |
2017 | { |
1142 | struct coro *coro; |
2018 | struct coro *coro; |
|
|
2019 | MAGIC *mg; |
1143 | HV *hv; |
2020 | HV *hv; |
1144 | int i; |
2021 | int i; |
1145 | |
2022 | |
1146 | Newz (0, coro, 1, struct coro); |
2023 | Newz (0, coro, 1, struct coro); |
1147 | coro->args = newAV (); |
2024 | coro->args = newAV (); |
1148 | coro->save = CORO_SAVE_ALL; |
|
|
1149 | coro->flags = CF_NEW; |
2025 | coro->flags = CF_NEW; |
1150 | |
2026 | |
|
|
2027 | if (coro_first) coro_first->prev = coro; |
|
|
2028 | coro->next = coro_first; |
|
|
2029 | coro_first = coro; |
|
|
2030 | |
1151 | hv = newHV (); |
2031 | coro->hv = hv = newHV (); |
1152 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
2032 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
2033 | mg->mg_flags |= MGf_DUP; |
1153 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2034 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1154 | |
2035 | |
|
|
2036 | av_extend (coro->args, items - 1); |
1155 | for (i = 1; i < items; i++) |
2037 | for (i = 1; i < items; i++) |
1156 | av_push (coro->args, newSVsv (ST (i))); |
2038 | av_push (coro->args, newSVsv (ST (i))); |
1157 | } |
2039 | } |
1158 | OUTPUT: |
2040 | OUTPUT: |
1159 | RETVAL |
|
|
1160 | |
|
|
1161 | int |
|
|
1162 | save (SV *coro, int new_save = -1) |
|
|
1163 | CODE: |
|
|
1164 | RETVAL = api_save (coro, new_save); |
|
|
1165 | OUTPUT: |
|
|
1166 | RETVAL |
2041 | RETVAL |
1167 | |
2042 | |
1168 | void |
2043 | void |
1169 | _set_stacklevel (...) |
2044 | _set_stacklevel (...) |
1170 | ALIAS: |
2045 | ALIAS: |
1171 | Coro::State::transfer = 1 |
2046 | Coro::State::transfer = 1 |
1172 | Coro::schedule = 2 |
2047 | Coro::schedule = 2 |
1173 | Coro::cede = 3 |
2048 | Coro::cede = 3 |
1174 | Coro::cede_notself = 4 |
2049 | Coro::cede_notself = 4 |
1175 | CODE: |
2050 | CODE: |
1176 | { |
2051 | coro_ssl_patch (aTHX_ cv, ix, &ST (0), items); |
1177 | struct transfer_args ta; |
|
|
1178 | |
|
|
1179 | switch (ix) |
|
|
1180 | { |
|
|
1181 | case 0: |
|
|
1182 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1183 | ta.next = 0; |
|
|
1184 | break; |
|
|
1185 | |
|
|
1186 | case 1: |
|
|
1187 | if (items != 2) |
|
|
1188 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1189 | |
|
|
1190 | prepare_transfer (&ta, ST (0), ST (1)); |
|
|
1191 | break; |
|
|
1192 | |
|
|
1193 | case 2: |
|
|
1194 | prepare_schedule (&ta); |
|
|
1195 | break; |
|
|
1196 | |
|
|
1197 | case 3: |
|
|
1198 | prepare_cede (&ta); |
|
|
1199 | break; |
|
|
1200 | |
|
|
1201 | case 4: |
|
|
1202 | if (!prepare_cede_notself (&ta)) |
|
|
1203 | XSRETURN_EMPTY; |
|
|
1204 | |
|
|
1205 | break; |
|
|
1206 | } |
|
|
1207 | |
|
|
1208 | BARRIER; |
|
|
1209 | TRANSFER (ta); |
|
|
1210 | |
|
|
1211 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
|
|
1212 | XSRETURN_YES; |
|
|
1213 | } |
|
|
1214 | |
2052 | |
1215 | bool |
2053 | bool |
1216 | _destroy (SV *coro_sv) |
2054 | _destroy (SV *coro_sv) |
1217 | CODE: |
2055 | CODE: |
1218 | RETVAL = coro_state_destroy (SvSTATE (coro_sv)); |
2056 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1219 | OUTPUT: |
2057 | OUTPUT: |
1220 | RETVAL |
2058 | RETVAL |
1221 | |
2059 | |
1222 | void |
2060 | void |
1223 | _exit (code) |
2061 | _exit (int code) |
1224 | int code |
|
|
1225 | PROTOTYPE: $ |
2062 | PROTOTYPE: $ |
1226 | CODE: |
2063 | CODE: |
1227 | _exit (code); |
2064 | _exit (code); |
|
|
2065 | |
|
|
2066 | int |
|
|
2067 | cctx_stacksize (int new_stacksize = 0) |
|
|
2068 | CODE: |
|
|
2069 | RETVAL = cctx_stacksize; |
|
|
2070 | if (new_stacksize) |
|
|
2071 | { |
|
|
2072 | cctx_stacksize = new_stacksize; |
|
|
2073 | ++cctx_gen; |
|
|
2074 | } |
|
|
2075 | OUTPUT: |
|
|
2076 | RETVAL |
|
|
2077 | |
|
|
2078 | int |
|
|
2079 | cctx_max_idle (int max_idle = 0) |
|
|
2080 | CODE: |
|
|
2081 | RETVAL = cctx_max_idle; |
|
|
2082 | if (max_idle > 1) |
|
|
2083 | cctx_max_idle = max_idle; |
|
|
2084 | OUTPUT: |
|
|
2085 | RETVAL |
1228 | |
2086 | |
1229 | int |
2087 | int |
1230 | cctx_count () |
2088 | cctx_count () |
1231 | CODE: |
2089 | CODE: |
1232 | RETVAL = cctx_count; |
2090 | RETVAL = cctx_count; |
… | |
… | |
1238 | CODE: |
2096 | CODE: |
1239 | RETVAL = cctx_idle; |
2097 | RETVAL = cctx_idle; |
1240 | OUTPUT: |
2098 | OUTPUT: |
1241 | RETVAL |
2099 | RETVAL |
1242 | |
2100 | |
|
|
2101 | void |
|
|
2102 | list () |
|
|
2103 | PPCODE: |
|
|
2104 | { |
|
|
2105 | struct coro *coro; |
|
|
2106 | for (coro = coro_first; coro; coro = coro->next) |
|
|
2107 | if (coro->hv) |
|
|
2108 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
2109 | } |
|
|
2110 | |
|
|
2111 | void |
|
|
2112 | call (Coro::State coro, SV *coderef) |
|
|
2113 | ALIAS: |
|
|
2114 | eval = 1 |
|
|
2115 | CODE: |
|
|
2116 | { |
|
|
2117 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
|
|
2118 | { |
|
|
2119 | struct coro temp; |
|
|
2120 | |
|
|
2121 | if (!(coro->flags & CF_RUNNING)) |
|
|
2122 | { |
|
|
2123 | PUTBACK; |
|
|
2124 | save_perl (aTHX_ &temp); |
|
|
2125 | load_perl (aTHX_ coro); |
|
|
2126 | } |
|
|
2127 | |
|
|
2128 | { |
|
|
2129 | dSP; |
|
|
2130 | ENTER; |
|
|
2131 | SAVETMPS; |
|
|
2132 | PUTBACK; |
|
|
2133 | PUSHSTACK; |
|
|
2134 | PUSHMARK (SP); |
|
|
2135 | |
|
|
2136 | if (ix) |
|
|
2137 | eval_sv (coderef, 0); |
|
|
2138 | else |
|
|
2139 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
2140 | |
|
|
2141 | POPSTACK; |
|
|
2142 | SPAGAIN; |
|
|
2143 | FREETMPS; |
|
|
2144 | LEAVE; |
|
|
2145 | PUTBACK; |
|
|
2146 | } |
|
|
2147 | |
|
|
2148 | if (!(coro->flags & CF_RUNNING)) |
|
|
2149 | { |
|
|
2150 | save_perl (aTHX_ coro); |
|
|
2151 | load_perl (aTHX_ &temp); |
|
|
2152 | SPAGAIN; |
|
|
2153 | } |
|
|
2154 | } |
|
|
2155 | } |
|
|
2156 | |
|
|
2157 | SV * |
|
|
2158 | is_ready (Coro::State coro) |
|
|
2159 | PROTOTYPE: $ |
|
|
2160 | ALIAS: |
|
|
2161 | is_ready = CF_READY |
|
|
2162 | is_running = CF_RUNNING |
|
|
2163 | is_new = CF_NEW |
|
|
2164 | is_destroyed = CF_DESTROYED |
|
|
2165 | CODE: |
|
|
2166 | RETVAL = boolSV (coro->flags & ix); |
|
|
2167 | OUTPUT: |
|
|
2168 | RETVAL |
|
|
2169 | |
|
|
2170 | void |
|
|
2171 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2172 | PROTOTYPE: $;$ |
|
|
2173 | CODE: |
|
|
2174 | SvREFCNT_dec (self->throw); |
|
|
2175 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2176 | |
|
|
2177 | void |
|
|
2178 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2179 | |
|
|
2180 | SV * |
|
|
2181 | has_cctx (Coro::State coro) |
|
|
2182 | PROTOTYPE: $ |
|
|
2183 | CODE: |
|
|
2184 | RETVAL = boolSV (!!coro->cctx); |
|
|
2185 | OUTPUT: |
|
|
2186 | RETVAL |
|
|
2187 | |
|
|
2188 | int |
|
|
2189 | is_traced (Coro::State coro) |
|
|
2190 | PROTOTYPE: $ |
|
|
2191 | CODE: |
|
|
2192 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
2193 | OUTPUT: |
|
|
2194 | RETVAL |
|
|
2195 | |
|
|
2196 | UV |
|
|
2197 | rss (Coro::State coro) |
|
|
2198 | PROTOTYPE: $ |
|
|
2199 | ALIAS: |
|
|
2200 | usecount = 1 |
|
|
2201 | CODE: |
|
|
2202 | switch (ix) |
|
|
2203 | { |
|
|
2204 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
2205 | case 1: RETVAL = coro->usecount; break; |
|
|
2206 | } |
|
|
2207 | OUTPUT: |
|
|
2208 | RETVAL |
|
|
2209 | |
|
|
2210 | void |
|
|
2211 | force_cctx () |
|
|
2212 | CODE: |
|
|
2213 | struct coro *coro = SvSTATE (coro_current); |
|
|
2214 | coro->cctx->idle_sp = 0; |
|
|
2215 | |
|
|
2216 | void |
|
|
2217 | swap_defsv (Coro::State self) |
|
|
2218 | PROTOTYPE: $ |
|
|
2219 | ALIAS: |
|
|
2220 | swap_defav = 1 |
|
|
2221 | CODE: |
|
|
2222 | if (!self->slot) |
|
|
2223 | croak ("cannot swap state with coroutine that has no saved state"); |
|
|
2224 | else |
|
|
2225 | { |
|
|
2226 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
2227 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
2228 | |
|
|
2229 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
2230 | } |
|
|
2231 | |
1243 | MODULE = Coro::State PACKAGE = Coro |
2232 | MODULE = Coro::State PACKAGE = Coro |
1244 | |
2233 | |
1245 | BOOT: |
2234 | BOOT: |
1246 | { |
2235 | { |
1247 | int i; |
2236 | int i; |
1248 | |
2237 | |
|
|
2238 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2239 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
2240 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
2241 | |
|
|
2242 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
|
|
2243 | SvREADONLY_on (coro_current); |
|
|
2244 | |
1249 | coro_stash = gv_stashpv ("Coro", TRUE); |
2245 | coro_stash = gv_stashpv ("Coro", TRUE); |
1250 | |
2246 | |
1251 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2247 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1252 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2248 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1253 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
2249 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1254 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
2250 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1255 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
2251 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1256 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
2252 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1257 | |
2253 | |
1258 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1259 | SvREADONLY_on (coro_current); |
|
|
1260 | |
|
|
1261 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2254 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1262 | coro_ready[i] = newAV (); |
2255 | coro_ready[i] = newAV (); |
1263 | |
2256 | |
1264 | { |
2257 | { |
1265 | SV *sv = perl_get_sv("Coro::API", 1); |
2258 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1266 | |
2259 | |
1267 | coroapi.schedule = api_schedule; |
2260 | coroapi.schedule = api_schedule; |
1268 | coroapi.save = api_save; |
|
|
1269 | coroapi.cede = api_cede; |
2261 | coroapi.cede = api_cede; |
1270 | coroapi.cede_notself = api_cede_notself; |
2262 | coroapi.cede_notself = api_cede_notself; |
1271 | coroapi.ready = api_ready; |
2263 | coroapi.ready = api_ready; |
1272 | coroapi.is_ready = api_is_ready; |
2264 | coroapi.is_ready = api_is_ready; |
1273 | coroapi.nready = &coro_nready; |
2265 | coroapi.nready = &coro_nready; |
… | |
… | |
1282 | void |
2274 | void |
1283 | _set_current (SV *current) |
2275 | _set_current (SV *current) |
1284 | PROTOTYPE: $ |
2276 | PROTOTYPE: $ |
1285 | CODE: |
2277 | CODE: |
1286 | SvREFCNT_dec (SvRV (coro_current)); |
2278 | SvREFCNT_dec (SvRV (coro_current)); |
1287 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
2279 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
2280 | |
|
|
2281 | void |
|
|
2282 | _set_readyhook (SV *hook) |
|
|
2283 | PROTOTYPE: $ |
|
|
2284 | CODE: |
|
|
2285 | LOCK; |
|
|
2286 | SvREFCNT_dec (coro_readyhook); |
|
|
2287 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
|
|
2288 | UNLOCK; |
1288 | |
2289 | |
1289 | int |
2290 | int |
1290 | prio (Coro::State coro, int newprio = 0) |
2291 | prio (Coro::State coro, int newprio = 0) |
1291 | ALIAS: |
2292 | ALIAS: |
1292 | nice = 1 |
2293 | nice = 1 |
… | |
… | |
1314 | CODE: |
2315 | CODE: |
1315 | RETVAL = boolSV (api_ready (self)); |
2316 | RETVAL = boolSV (api_ready (self)); |
1316 | OUTPUT: |
2317 | OUTPUT: |
1317 | RETVAL |
2318 | RETVAL |
1318 | |
2319 | |
1319 | SV * |
|
|
1320 | is_ready (SV *self) |
|
|
1321 | PROTOTYPE: $ |
|
|
1322 | CODE: |
|
|
1323 | RETVAL = boolSV (api_is_ready (self)); |
|
|
1324 | OUTPUT: |
|
|
1325 | RETVAL |
|
|
1326 | |
|
|
1327 | int |
2320 | int |
1328 | nready (...) |
2321 | nready (...) |
1329 | PROTOTYPE: |
2322 | PROTOTYPE: |
1330 | CODE: |
2323 | CODE: |
1331 | RETVAL = coro_nready; |
2324 | RETVAL = coro_nready; |
1332 | OUTPUT: |
2325 | OUTPUT: |
1333 | RETVAL |
2326 | RETVAL |
1334 | |
2327 | |
|
|
2328 | # for async_pool speedup |
|
|
2329 | void |
|
|
2330 | _pool_1 (SV *cb) |
|
|
2331 | CODE: |
|
|
2332 | { |
|
|
2333 | struct coro *coro = SvSTATE (coro_current); |
|
|
2334 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2335 | AV *defav = GvAV (PL_defgv); |
|
|
2336 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2337 | AV *invoke_av; |
|
|
2338 | int i, len; |
|
|
2339 | |
|
|
2340 | if (!invoke) |
|
|
2341 | { |
|
|
2342 | SV *old = PL_diehook; |
|
|
2343 | PL_diehook = 0; |
|
|
2344 | SvREFCNT_dec (old); |
|
|
2345 | croak ("\3async_pool terminate\2\n"); |
|
|
2346 | } |
|
|
2347 | |
|
|
2348 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2349 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2350 | |
|
|
2351 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2352 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2353 | |
|
|
2354 | invoke_av = (AV *)SvRV (invoke); |
|
|
2355 | len = av_len (invoke_av); |
|
|
2356 | |
|
|
2357 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2358 | |
|
|
2359 | if (len > 0) |
|
|
2360 | { |
|
|
2361 | av_fill (defav, len - 1); |
|
|
2362 | for (i = 0; i < len; ++i) |
|
|
2363 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
|
|
2364 | } |
|
|
2365 | |
|
|
2366 | SvREFCNT_dec (invoke); |
|
|
2367 | } |
|
|
2368 | |
|
|
2369 | void |
|
|
2370 | _pool_2 (SV *cb) |
|
|
2371 | CODE: |
|
|
2372 | { |
|
|
2373 | struct coro *coro = SvSTATE (coro_current); |
|
|
2374 | |
|
|
2375 | sv_setsv (cb, &PL_sv_undef); |
|
|
2376 | |
|
|
2377 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2378 | coro->saved_deffh = 0; |
|
|
2379 | |
|
|
2380 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2381 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2382 | { |
|
|
2383 | SV *old = PL_diehook; |
|
|
2384 | PL_diehook = 0; |
|
|
2385 | SvREFCNT_dec (old); |
|
|
2386 | croak ("\3async_pool terminate\2\n"); |
|
|
2387 | } |
|
|
2388 | |
|
|
2389 | av_clear (GvAV (PL_defgv)); |
|
|
2390 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
2391 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2392 | |
|
|
2393 | coro->prio = 0; |
|
|
2394 | |
|
|
2395 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2396 | api_trace (coro_current, 0); |
|
|
2397 | |
|
|
2398 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2399 | } |
|
|
2400 | |
|
|
2401 | #if 0 |
|
|
2402 | |
|
|
2403 | void |
|
|
2404 | _generator_call (...) |
|
|
2405 | PROTOTYPE: @ |
|
|
2406 | PPCODE: |
|
|
2407 | fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
|
|
2408 | xxxx |
|
|
2409 | abort (); |
|
|
2410 | |
|
|
2411 | SV * |
|
|
2412 | gensub (SV *sub, ...) |
|
|
2413 | PROTOTYPE: &;@ |
|
|
2414 | CODE: |
|
|
2415 | { |
|
|
2416 | struct coro *coro; |
|
|
2417 | MAGIC *mg; |
|
|
2418 | CV *xcv; |
|
|
2419 | CV *ncv = (CV *)newSV_type (SVt_PVCV); |
|
|
2420 | int i; |
|
|
2421 | |
|
|
2422 | CvGV (ncv) = CvGV (cv); |
|
|
2423 | CvFILE (ncv) = CvFILE (cv); |
|
|
2424 | |
|
|
2425 | Newz (0, coro, 1, struct coro); |
|
|
2426 | coro->args = newAV (); |
|
|
2427 | coro->flags = CF_NEW; |
|
|
2428 | |
|
|
2429 | av_extend (coro->args, items - 1); |
|
|
2430 | for (i = 1; i < items; i++) |
|
|
2431 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2432 | |
|
|
2433 | CvISXSUB_on (ncv); |
|
|
2434 | CvXSUBANY (ncv).any_ptr = (void *)coro; |
|
|
2435 | |
|
|
2436 | xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
|
|
2437 | |
|
|
2438 | CvXSUB (ncv) = CvXSUB (xcv); |
|
|
2439 | CvANON_on (ncv); |
|
|
2440 | |
|
|
2441 | mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
|
|
2442 | RETVAL = newRV_noinc ((SV *)ncv); |
|
|
2443 | } |
|
|
2444 | OUTPUT: |
|
|
2445 | RETVAL |
|
|
2446 | |
|
|
2447 | #endif |
|
|
2448 | |
|
|
2449 | |
1335 | MODULE = Coro::State PACKAGE = Coro::AIO |
2450 | MODULE = Coro::State PACKAGE = Coro::AIO |
1336 | |
2451 | |
1337 | SV * |
2452 | void |
1338 | _get_state () |
2453 | _get_state (SV *self) |
1339 | CODE: |
2454 | PPCODE: |
1340 | { |
2455 | { |
1341 | struct io_state *data; |
2456 | AV *defav = GvAV (PL_defgv); |
1342 | |
2457 | AV *av = newAV (); |
|
|
2458 | int i; |
1343 | RETVAL = newSV (sizeof (struct io_state)); |
2459 | SV *data_sv = newSV (sizeof (struct io_state)); |
1344 | data = (struct io_state *)SvPVX (RETVAL); |
2460 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
1345 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
2461 | SvCUR_set (data_sv, sizeof (struct io_state)); |
1346 | SvPOK_only (RETVAL); |
2462 | SvPOK_only (data_sv); |
1347 | |
2463 | |
1348 | data->errorno = errno; |
2464 | data->errorno = errno; |
1349 | data->laststype = PL_laststype; |
2465 | data->laststype = PL_laststype; |
1350 | data->laststatval = PL_laststatval; |
2466 | data->laststatval = PL_laststatval; |
1351 | data->statcache = PL_statcache; |
2467 | data->statcache = PL_statcache; |
|
|
2468 | |
|
|
2469 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2470 | |
|
|
2471 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2472 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2473 | |
|
|
2474 | av_push (av, data_sv); |
|
|
2475 | |
|
|
2476 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2477 | |
|
|
2478 | api_ready (self); |
1352 | } |
2479 | } |
1353 | OUTPUT: |
|
|
1354 | RETVAL |
|
|
1355 | |
2480 | |
1356 | void |
2481 | void |
1357 | _set_state (char *data_) |
2482 | _set_state (SV *state) |
1358 | PROTOTYPE: $ |
2483 | PROTOTYPE: $ |
1359 | CODE: |
2484 | PPCODE: |
1360 | { |
2485 | { |
1361 | struct io_state *data = (void *)data_; |
2486 | AV *av = (AV *)SvRV (state); |
|
|
2487 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2488 | int i; |
1362 | |
2489 | |
1363 | errno = data->errorno; |
2490 | errno = data->errorno; |
1364 | PL_laststype = data->laststype; |
2491 | PL_laststype = data->laststype; |
1365 | PL_laststatval = data->laststatval; |
2492 | PL_laststatval = data->laststatval; |
1366 | PL_statcache = data->statcache; |
2493 | PL_statcache = data->statcache; |
1367 | } |
|
|
1368 | |
2494 | |
|
|
2495 | EXTEND (SP, AvFILLp (av)); |
|
|
2496 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2497 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2498 | } |
|
|
2499 | |
|
|
2500 | |
|
|
2501 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2502 | |
|
|
2503 | BOOT: |
|
|
2504 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2505 | |
|
|
2506 | SV * |
|
|
2507 | _schedule (...) |
|
|
2508 | PROTOTYPE: @ |
|
|
2509 | CODE: |
|
|
2510 | { |
|
|
2511 | static int incede; |
|
|
2512 | |
|
|
2513 | api_cede_notself (); |
|
|
2514 | |
|
|
2515 | ++incede; |
|
|
2516 | while (coro_nready >= incede && api_cede ()) |
|
|
2517 | ; |
|
|
2518 | |
|
|
2519 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2520 | if (coro_nready >= incede) |
|
|
2521 | { |
|
|
2522 | PUSHMARK (SP); |
|
|
2523 | PUTBACK; |
|
|
2524 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2525 | SPAGAIN; |
|
|
2526 | } |
|
|
2527 | |
|
|
2528 | --incede; |
|
|
2529 | } |
|
|
2530 | |
|
|
2531 | |
|
|
2532 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
2533 | |
|
|
2534 | BOOT: |
|
|
2535 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
2536 | |