1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
2 | |
2 | |
3 | #define PERL_NO_GET_CONTEXT |
3 | #define PERL_NO_GET_CONTEXT |
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4 | #define PERL_EXT |
4 | |
5 | |
5 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
6 | #include "perl.h" |
7 | #include "perl.h" |
7 | #include "XSUB.h" |
8 | #include "XSUB.h" |
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9 | #include "perliol.h" |
8 | |
10 | |
9 | #include "patchlevel.h" |
11 | #include "patchlevel.h" |
10 | |
12 | |
11 | #include <stdio.h> |
13 | #include <stdio.h> |
12 | #include <errno.h> |
14 | #include <errno.h> |
13 | #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 |
14 | |
25 | |
15 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
16 | # include <unistd.h> |
27 | # include <unistd.h> |
17 | # include <sys/mman.h> |
28 | # include <sys/mman.h> |
18 | # ifndef MAP_ANONYMOUS |
29 | # ifndef MAP_ANONYMOUS |
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35 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
36 | #endif |
47 | #endif |
37 | |
48 | |
38 | #if CORO_USE_VALGRIND |
49 | #if CORO_USE_VALGRIND |
39 | # include <valgrind/valgrind.h> |
50 | # include <valgrind/valgrind.h> |
40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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41 | #else |
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42 | # define REGISTER_STACK(cctx,start,end) |
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43 | #endif |
51 | #endif |
44 | |
52 | |
45 | /* the maximum number of idle cctx that will be pooled */ |
53 | /* the maximum number of idle cctx that will be pooled */ |
46 | #define MAX_IDLE_CCTX 8 |
54 | static int cctx_max_idle = 4; |
47 | |
55 | |
48 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
49 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
50 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
51 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
… | |
… | |
70 | # ifndef IS_PADCONST |
78 | # ifndef IS_PADCONST |
71 | # define IS_PADCONST(v) 0 |
79 | # define IS_PADCONST(v) 0 |
72 | # endif |
80 | # endif |
73 | #endif |
81 | #endif |
74 | |
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 | |
75 | /* 5.8.7 */ |
101 | /* 5.8.7 */ |
76 | #ifndef SvRV_set |
102 | #ifndef SvRV_set |
77 | # define SvRV_set(s,v) SvRV(s) = (v) |
103 | # define SvRV_set(s,v) SvRV(s) = (v) |
78 | #endif |
104 | #endif |
79 | |
105 | |
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90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
91 | #endif |
117 | #endif |
92 | |
118 | |
93 | /* The next macros try to return the current stack pointer, in an as |
119 | /* The next macros try to return the current stack pointer, in an as |
94 | * portable way as possible. */ |
120 | * portable way as possible. */ |
95 | #define dSTACKLEVEL volatile char stacklevel |
121 | #if __GNUC__ >= 4 |
96 | #define STACKLEVEL ((void *)&stacklevel) |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
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123 | #else |
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124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
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125 | #endif |
97 | |
126 | |
98 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
99 | |
128 | |
100 | #if __GNUC__ >= 3 |
129 | #if __GNUC__ >= 3 |
101 | # define attribute(x) __attribute__(x) |
130 | # define attribute(x) __attribute__(x) |
102 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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132 | # define INLINE static inline |
103 | #else |
133 | #else |
104 | # define attribute(x) |
134 | # define attribute(x) |
105 | # define BARRIER |
135 | # define expect(expr,value) (expr) |
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136 | # define INLINE static |
106 | #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) |
107 | |
141 | |
108 | #define NOINLINE attribute ((noinline)) |
142 | #define NOINLINE attribute ((noinline)) |
109 | |
143 | |
110 | #include "CoroAPI.h" |
144 | #include "CoroAPI.h" |
111 | |
145 | |
112 | #ifdef USE_ITHREADS |
146 | #ifdef USE_ITHREADS |
113 | static perl_mutex coro_mutex; |
147 | # if CORO_PTHREAD |
114 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
148 | static void *coro_thx; |
115 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
149 | # endif |
116 | #else |
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117 | # define LOCK (void)0 |
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118 | # define UNLOCK (void)0 |
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119 | #endif |
150 | #endif |
120 | |
151 | |
121 | /* helper storage struct for Coro::AIO */ |
152 | /* helper storage struct for Coro::AIO */ |
122 | struct io_state |
153 | struct io_state |
123 | { |
154 | { |
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155 | AV *res; |
124 | int errorno; |
156 | int errorno; |
125 | I32 laststype; |
157 | I32 laststype; /* U16 in 5.10.0 */ |
126 | int laststatval; |
158 | int laststatval; |
127 | Stat_t statcache; |
159 | Stat_t statcache; |
128 | }; |
160 | }; |
129 | |
161 | |
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162 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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163 | |
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164 | static U32 cctx_gen; |
130 | static size_t coro_stacksize = CORO_STACKSIZE; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
131 | static struct CoroAPI coroapi; |
166 | static struct CoroAPI coroapi; |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
133 | static JMPENV *main_top_env; |
168 | static JMPENV *main_top_env; |
134 | static HV *coro_state_stash, *coro_stash; |
169 | static HV *coro_state_stash, *coro_stash; |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
170 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
136 | |
171 | |
137 | static GV *irsgv; /* $/ */ |
172 | static GV *irsgv; /* $/ */ |
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173 | static GV *stdoutgv; /* *STDOUT */ |
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174 | static SV *rv_diehook; |
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175 | static SV *rv_warnhook; |
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176 | static HV *hv_sig; /* %SIG */ |
138 | |
177 | |
139 | /* async_pool helper stuff */ |
178 | /* async_pool helper stuff */ |
140 | static SV *sv_pool_rss; |
179 | static SV *sv_pool_rss; |
141 | static SV *sv_pool_size; |
180 | static SV *sv_pool_size; |
142 | static AV *av_async_pool; |
181 | static AV *av_async_pool; |
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182 | |
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183 | /* Coro::AnyEvent */ |
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184 | static SV *sv_activity; |
143 | |
185 | |
144 | static struct coro_cctx *cctx_first; |
186 | static struct coro_cctx *cctx_first; |
145 | static int cctx_count, cctx_idle; |
187 | static int cctx_count, cctx_idle; |
146 | |
188 | |
147 | enum { |
189 | enum { |
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152 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
194 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
153 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
195 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
154 | }; |
196 | }; |
155 | |
197 | |
156 | /* this is a structure representing a c-level coroutine */ |
198 | /* this is a structure representing a c-level coroutine */ |
157 | typedef struct coro_cctx { |
199 | typedef struct coro_cctx |
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200 | { |
158 | struct coro_cctx *next; |
201 | struct coro_cctx *next; |
159 | |
202 | |
160 | /* the stack */ |
203 | /* the stack */ |
161 | void *sptr; |
204 | void *sptr; |
162 | size_t ssize; |
205 | size_t ssize; |
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165 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
208 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
166 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
209 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
167 | JMPENV *top_env; |
210 | JMPENV *top_env; |
168 | coro_context cctx; |
211 | coro_context cctx; |
169 | |
212 | |
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213 | U32 gen; |
170 | #if CORO_USE_VALGRIND |
214 | #if CORO_USE_VALGRIND |
171 | int valgrind_id; |
215 | int valgrind_id; |
172 | #endif |
216 | #endif |
173 | unsigned char flags; |
217 | unsigned char flags; |
174 | } coro_cctx; |
218 | } coro_cctx; |
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178 | CF_READY = 0x0002, /* coroutine is ready */ |
222 | CF_READY = 0x0002, /* coroutine is ready */ |
179 | CF_NEW = 0x0004, /* has never been switched to */ |
223 | CF_NEW = 0x0004, /* has never been switched to */ |
180 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
224 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
181 | }; |
225 | }; |
182 | |
226 | |
183 | /* this is a structure representing a perl-level coroutine */ |
227 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
184 | struct coro { |
228 | typedef struct |
185 | /* the c coroutine allocated to this perl coroutine, if any */ |
229 | { |
186 | coro_cctx *cctx; |
230 | SV *defsv; |
187 | |
231 | AV *defav; |
188 | /* data associated with this coroutine (initial args) */ |
232 | SV *errsv; |
189 | AV *args; |
233 | SV *irsgv; |
190 | int refcnt; |
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191 | int flags; /* CF_ flags */ |
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192 | |
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193 | /* optionally saved, might be zero */ |
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194 | AV *defav; /* @_ */ |
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195 | SV *defsv; /* $_ */ |
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196 | SV *errsv; /* $@ */ |
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197 | SV *deffh; /* default filehandle */ |
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198 | SV *irssv; /* $/ */ |
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199 | SV *irssv_sv; /* real $/ cache */ |
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200 | |
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201 | #define VAR(name,type) type name; |
234 | #define VAR(name,type) type name; |
202 | # include "state.h" |
235 | # include "state.h" |
203 | #undef VAR |
236 | #undef VAR |
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237 | } perl_slots; |
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238 | |
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239 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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240 | |
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241 | /* this is a structure representing a perl-level coroutine */ |
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242 | struct coro { |
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243 | /* the C coroutine allocated to this perl coroutine, if any */ |
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244 | coro_cctx *cctx; |
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245 | |
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246 | /* process data */ |
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247 | struct CoroSLF slf_frame; /* saved slf frame */ |
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248 | AV *mainstack; |
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249 | perl_slots *slot; /* basically the saved sp */ |
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250 | |
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251 | AV *args; /* data associated with this coroutine (initial args) */ |
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252 | int refcnt; /* coroutines are refcounted, yes */ |
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253 | int flags; /* CF_ flags */ |
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254 | HV *hv; /* the perl hash associated with this coro, if any */ |
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255 | void (*on_destroy)(pTHX_ struct coro *coro); |
204 | |
256 | |
205 | /* statistics */ |
257 | /* statistics */ |
206 | int usecount; /* number of transfers to this coro */ |
258 | int usecount; /* number of transfers to this coro */ |
207 | |
259 | |
208 | /* coro process data */ |
260 | /* coro process data */ |
209 | int prio; |
261 | int prio; |
210 | //SV *throw; |
262 | SV *throw; /* exception to be thrown */ |
211 | |
263 | |
212 | /* async_pool */ |
264 | /* async_pool */ |
213 | SV *saved_deffh; |
265 | SV *saved_deffh; |
214 | |
266 | |
215 | /* linked list */ |
267 | /* linked list */ |
216 | struct coro *next, *prev; |
268 | struct coro *next, *prev; |
217 | HV *hv; /* the perl hash associated with this coro, if any */ |
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218 | }; |
269 | }; |
219 | |
270 | |
220 | typedef struct coro *Coro__State; |
271 | typedef struct coro *Coro__State; |
221 | typedef struct coro *Coro__State_or_hashref; |
272 | typedef struct coro *Coro__State_or_hashref; |
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273 | |
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274 | static struct CoroSLF slf_frame; /* the current slf frame */ |
222 | |
275 | |
223 | /** Coro ********************************************************************/ |
276 | /** Coro ********************************************************************/ |
224 | |
277 | |
225 | #define PRIO_MAX 3 |
278 | #define PRIO_MAX 3 |
226 | #define PRIO_HIGH 1 |
279 | #define PRIO_HIGH 1 |
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229 | #define PRIO_IDLE -3 |
282 | #define PRIO_IDLE -3 |
230 | #define PRIO_MIN -4 |
283 | #define PRIO_MIN -4 |
231 | |
284 | |
232 | /* for Coro.pm */ |
285 | /* for Coro.pm */ |
233 | static SV *coro_current; |
286 | static SV *coro_current; |
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287 | static SV *coro_readyhook; |
234 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
288 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
235 | static int coro_nready; |
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236 | static struct coro *coro_first; |
289 | static struct coro *coro_first; |
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290 | #define coro_nready coroapi.nready |
237 | |
291 | |
238 | /** lowlevel stuff **********************************************************/ |
292 | /** lowlevel stuff **********************************************************/ |
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293 | |
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294 | static SV * |
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295 | coro_get_sv (pTHX_ const char *name, int create) |
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296 | { |
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297 | #if PERL_VERSION_ATLEAST (5,10,0) |
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298 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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299 | get_sv (name, create); |
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300 | #endif |
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301 | return get_sv (name, create); |
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302 | } |
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303 | |
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304 | static AV * |
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305 | coro_get_av (pTHX_ const char *name, int create) |
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306 | { |
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307 | #if PERL_VERSION_ATLEAST (5,10,0) |
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308 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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309 | get_av (name, create); |
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310 | #endif |
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311 | return get_av (name, create); |
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312 | } |
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313 | |
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314 | static HV * |
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315 | coro_get_hv (pTHX_ const char *name, int create) |
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316 | { |
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317 | #if PERL_VERSION_ATLEAST (5,10,0) |
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318 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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319 | get_hv (name, create); |
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320 | #endif |
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321 | return get_hv (name, create); |
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322 | } |
239 | |
323 | |
240 | static AV * |
324 | static AV * |
241 | coro_clone_padlist (pTHX_ CV *cv) |
325 | coro_clone_padlist (pTHX_ CV *cv) |
242 | { |
326 | { |
243 | AV *padlist = CvPADLIST (cv); |
327 | AV *padlist = CvPADLIST (cv); |
244 | AV *newpadlist, *newpad; |
328 | AV *newpadlist, *newpad; |
245 | |
329 | |
246 | newpadlist = newAV (); |
330 | newpadlist = newAV (); |
247 | AvREAL_off (newpadlist); |
331 | AvREAL_off (newpadlist); |
248 | #if PERL_VERSION_ATLEAST (5,9,0) |
332 | #if PERL_VERSION_ATLEAST (5,10,0) |
249 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
333 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
250 | #else |
334 | #else |
251 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
335 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
252 | #endif |
336 | #endif |
253 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
337 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
254 | --AvFILLp (padlist); |
338 | --AvFILLp (padlist); |
255 | |
339 | |
256 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
340 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
257 | av_store (newpadlist, 1, (SV *)newpad); |
341 | av_store (newpadlist, 1, (SV *)newpad); |
258 | |
342 | |
259 | return newpadlist; |
343 | return newpadlist; |
260 | } |
344 | } |
261 | |
345 | |
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291 | |
375 | |
292 | /* casting is fun. */ |
376 | /* casting is fun. */ |
293 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
377 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
294 | free_padlist (aTHX_ padlist); |
378 | free_padlist (aTHX_ padlist); |
295 | |
379 | |
296 | SvREFCNT_dec (av); |
380 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
297 | |
381 | |
298 | return 0; |
382 | return 0; |
299 | } |
383 | } |
300 | |
384 | |
301 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
385 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
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386 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
302 | |
387 | |
303 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
388 | static MGVTBL coro_cv_vtbl = { |
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389 | 0, 0, 0, 0, |
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390 | coro_cv_free |
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391 | }; |
304 | |
392 | |
305 | #define CORO_MAGIC(cv) \ |
393 | #define CORO_MAGIC(sv, type) \ |
306 | SvMAGIC (cv) \ |
394 | expect_true (SvMAGIC (sv)) \ |
307 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
395 | ? expect_true (SvMAGIC (sv)->mg_type == type) \ |
308 | ? SvMAGIC (cv) \ |
396 | ? SvMAGIC (sv) \ |
309 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
397 | : mg_find (sv, type) \ |
310 | : 0 |
398 | : 0 |
311 | |
399 | |
312 | static struct coro * |
400 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
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401 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
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402 | |
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403 | INLINE struct coro * |
313 | SvSTATE_ (pTHX_ SV *coro) |
404 | SvSTATE_ (pTHX_ SV *coro) |
314 | { |
405 | { |
315 | HV *stash; |
406 | HV *stash; |
316 | MAGIC *mg; |
407 | MAGIC *mg; |
317 | |
408 | |
318 | if (SvROK (coro)) |
409 | if (SvROK (coro)) |
319 | coro = SvRV (coro); |
410 | coro = SvRV (coro); |
320 | |
411 | |
321 | if (SvTYPE (coro) != SVt_PVHV) |
412 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
322 | croak ("Coro::State object required"); |
413 | croak ("Coro::State object required"); |
323 | |
414 | |
324 | stash = SvSTASH (coro); |
415 | stash = SvSTASH (coro); |
325 | if (stash != coro_stash && stash != coro_state_stash) |
416 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
326 | { |
417 | { |
327 | /* very slow, but rare, check */ |
418 | /* very slow, but rare, check */ |
328 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
419 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
329 | croak ("Coro::State object required"); |
420 | croak ("Coro::State object required"); |
330 | } |
421 | } |
331 | |
422 | |
332 | mg = CORO_MAGIC (coro); |
423 | mg = CORO_MAGIC_state (coro); |
333 | return (struct coro *)mg->mg_ptr; |
424 | return (struct coro *)mg->mg_ptr; |
334 | } |
425 | } |
335 | |
426 | |
336 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
427 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
337 | |
428 | |
|
|
429 | /* fastert than SvSTATE, but expects a coroutine hv */ |
|
|
430 | INLINE struct coro * |
|
|
431 | SvSTATE_hv (SV *sv) |
|
|
432 | { |
|
|
433 | MAGIC *mg = expect_true (SvMAGIC (sv)->mg_type == CORO_MAGIC_type_state) |
|
|
434 | ? SvMAGIC (sv) |
|
|
435 | : mg_find (sv, CORO_MAGIC_type_state); |
|
|
436 | |
|
|
437 | return (struct coro *)mg->mg_ptr; |
|
|
438 | } |
|
|
439 | |
|
|
440 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
441 | |
338 | /* the next two functions merely cache the padlists */ |
442 | /* the next two functions merely cache the padlists */ |
339 | static void |
443 | static void |
340 | get_padlist (pTHX_ CV *cv) |
444 | get_padlist (pTHX_ CV *cv) |
341 | { |
445 | { |
342 | MAGIC *mg = CORO_MAGIC (cv); |
446 | MAGIC *mg = CORO_MAGIC_cv (cv); |
343 | AV *av; |
447 | AV *av; |
344 | |
448 | |
345 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
449 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
346 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
450 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
347 | else |
451 | else |
348 | { |
452 | { |
349 | #if CORO_PREFER_PERL_FUNCTIONS |
453 | #if CORO_PREFER_PERL_FUNCTIONS |
350 | /* this is probably cleaner, but also slower? */ |
454 | /* this is probably cleaner? but also slower! */ |
|
|
455 | /* in practise, it seems to be less stable */ |
351 | CV *cp = Perl_cv_clone (cv); |
456 | CV *cp = Perl_cv_clone (cv); |
352 | CvPADLIST (cv) = CvPADLIST (cp); |
457 | CvPADLIST (cv) = CvPADLIST (cp); |
353 | CvPADLIST (cp) = 0; |
458 | CvPADLIST (cp) = 0; |
354 | SvREFCNT_dec (cp); |
459 | SvREFCNT_dec (cp); |
355 | #else |
460 | #else |
… | |
… | |
359 | } |
464 | } |
360 | |
465 | |
361 | static void |
466 | static void |
362 | put_padlist (pTHX_ CV *cv) |
467 | put_padlist (pTHX_ CV *cv) |
363 | { |
468 | { |
364 | MAGIC *mg = CORO_MAGIC (cv); |
469 | MAGIC *mg = CORO_MAGIC_cv (cv); |
365 | AV *av; |
470 | AV *av; |
366 | |
471 | |
367 | if (!mg) |
472 | if (expect_false (!mg)) |
368 | { |
473 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
369 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
370 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
371 | mg->mg_virtual = &vtbl_coro; |
|
|
372 | mg->mg_obj = (SV *)newAV (); |
|
|
373 | } |
|
|
374 | |
474 | |
375 | av = (AV *)mg->mg_obj; |
475 | av = (AV *)mg->mg_obj; |
376 | |
476 | |
377 | if (AvFILLp (av) >= AvMAX (av)) |
477 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
378 | av_extend (av, AvMAX (av) + 1); |
478 | av_extend (av, AvMAX (av) + 1); |
379 | |
479 | |
380 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
480 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
381 | } |
481 | } |
382 | |
482 | |
383 | /** load & save, init *******************************************************/ |
483 | /** load & save, init *******************************************************/ |
384 | |
484 | |
385 | static void |
485 | static void |
386 | load_perl (pTHX_ Coro__State c) |
486 | load_perl (pTHX_ Coro__State c) |
387 | { |
487 | { |
|
|
488 | perl_slots *slot = c->slot; |
|
|
489 | c->slot = 0; |
|
|
490 | |
|
|
491 | PL_mainstack = c->mainstack; |
|
|
492 | |
|
|
493 | GvSV (PL_defgv) = slot->defsv; |
|
|
494 | GvAV (PL_defgv) = slot->defav; |
|
|
495 | GvSV (PL_errgv) = slot->errsv; |
|
|
496 | GvSV (irsgv) = slot->irsgv; |
|
|
497 | |
388 | #define VAR(name,type) PL_ ## name = c->name; |
498 | #define VAR(name,type) PL_ ## name = slot->name; |
389 | # include "state.h" |
499 | # include "state.h" |
390 | #undef VAR |
500 | #undef VAR |
391 | |
|
|
392 | GvSV (PL_defgv) = c->defsv; |
|
|
393 | GvAV (PL_defgv) = c->defav; |
|
|
394 | GvSV (PL_errgv) = c->errsv; |
|
|
395 | GvSV (irsgv) = c->irssv_sv; |
|
|
396 | |
501 | |
397 | { |
502 | { |
398 | dSP; |
503 | dSP; |
|
|
504 | |
399 | CV *cv; |
505 | CV *cv; |
400 | |
506 | |
401 | /* now do the ugly restore mess */ |
507 | /* now do the ugly restore mess */ |
402 | while ((cv = (CV *)POPs)) |
508 | while (expect_true (cv = (CV *)POPs)) |
403 | { |
509 | { |
404 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
510 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
405 | CvDEPTH (cv) = PTR2IV (POPs); |
511 | CvDEPTH (cv) = PTR2IV (POPs); |
406 | CvPADLIST (cv) = (AV *)POPs; |
512 | CvPADLIST (cv) = (AV *)POPs; |
407 | } |
513 | } |
408 | |
514 | |
409 | PUTBACK; |
515 | PUTBACK; |
410 | } |
516 | } |
|
|
517 | |
|
|
518 | slf_frame = c->slf_frame; |
411 | } |
519 | } |
412 | |
520 | |
413 | static void |
521 | static void |
414 | save_perl (pTHX_ Coro__State c) |
522 | save_perl (pTHX_ Coro__State c) |
415 | { |
523 | { |
|
|
524 | c->slf_frame = slf_frame; |
|
|
525 | |
416 | { |
526 | { |
417 | dSP; |
527 | dSP; |
418 | I32 cxix = cxstack_ix; |
528 | I32 cxix = cxstack_ix; |
419 | PERL_CONTEXT *ccstk = cxstack; |
529 | PERL_CONTEXT *ccstk = cxstack; |
420 | PERL_SI *top_si = PL_curstackinfo; |
530 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
426 | |
536 | |
427 | XPUSHs (Nullsv); |
537 | XPUSHs (Nullsv); |
428 | /* this loop was inspired by pp_caller */ |
538 | /* this loop was inspired by pp_caller */ |
429 | for (;;) |
539 | for (;;) |
430 | { |
540 | { |
431 | while (cxix >= 0) |
541 | while (expect_true (cxix >= 0)) |
432 | { |
542 | { |
433 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
543 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
434 | |
544 | |
435 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
545 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
436 | { |
546 | { |
437 | CV *cv = cx->blk_sub.cv; |
547 | CV *cv = cx->blk_sub.cv; |
438 | |
548 | |
439 | if (CvDEPTH (cv)) |
549 | if (expect_true (CvDEPTH (cv))) |
440 | { |
550 | { |
441 | EXTEND (SP, 3); |
551 | EXTEND (SP, 3); |
442 | PUSHs ((SV *)CvPADLIST (cv)); |
552 | PUSHs ((SV *)CvPADLIST (cv)); |
443 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
553 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
444 | PUSHs ((SV *)cv); |
554 | PUSHs ((SV *)cv); |
445 | |
555 | |
446 | CvDEPTH (cv) = 0; |
556 | CvDEPTH (cv) = 0; |
447 | get_padlist (aTHX_ cv); |
557 | get_padlist (aTHX_ cv); |
448 | } |
558 | } |
449 | } |
559 | } |
450 | } |
560 | } |
451 | |
561 | |
452 | if (top_si->si_type == PERLSI_MAIN) |
562 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
453 | break; |
563 | break; |
454 | |
564 | |
455 | top_si = top_si->si_prev; |
565 | top_si = top_si->si_prev; |
456 | ccstk = top_si->si_cxstack; |
566 | ccstk = top_si->si_cxstack; |
457 | cxix = top_si->si_cxix; |
567 | cxix = top_si->si_cxix; |
458 | } |
568 | } |
459 | |
569 | |
460 | PUTBACK; |
570 | PUTBACK; |
461 | } |
571 | } |
462 | |
572 | |
|
|
573 | /* allocate some space on the context stack for our purposes */ |
|
|
574 | /* we manually unroll here, as usually 2 slots is enough */ |
|
|
575 | if (SLOT_COUNT >= 1) CXINC; |
|
|
576 | if (SLOT_COUNT >= 2) CXINC; |
|
|
577 | if (SLOT_COUNT >= 3) CXINC; |
|
|
578 | { |
|
|
579 | int i; |
|
|
580 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
581 | CXINC; |
|
|
582 | } |
|
|
583 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
584 | |
|
|
585 | c->mainstack = PL_mainstack; |
|
|
586 | |
|
|
587 | { |
|
|
588 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
589 | |
463 | c->defav = GvAV (PL_defgv); |
590 | slot->defav = GvAV (PL_defgv); |
464 | c->defsv = DEFSV; |
591 | slot->defsv = DEFSV; |
465 | c->errsv = ERRSV; |
592 | slot->errsv = ERRSV; |
466 | c->irssv_sv = GvSV (irsgv); |
593 | slot->irsgv = GvSV (irsgv); |
467 | |
594 | |
468 | #define VAR(name,type)c->name = PL_ ## name; |
595 | #define VAR(name,type) slot->name = PL_ ## name; |
469 | # include "state.h" |
596 | # include "state.h" |
470 | #undef VAR |
597 | #undef VAR |
|
|
598 | } |
471 | } |
599 | } |
472 | |
600 | |
473 | /* |
601 | /* |
474 | * allocate various perl stacks. This is an exact copy |
602 | * allocate various perl stacks. This is almost an exact copy |
475 | * of perl.c:init_stacks, except that it uses less memory |
603 | * of perl.c:init_stacks, except that it uses less memory |
476 | * on the (sometimes correct) assumption that coroutines do |
604 | * on the (sometimes correct) assumption that coroutines do |
477 | * not usually need a lot of stackspace. |
605 | * not usually need a lot of stackspace. |
478 | */ |
606 | */ |
479 | #if CORO_PREFER_PERL_FUNCTIONS |
607 | #if CORO_PREFER_PERL_FUNCTIONS |
480 | # define coro_init_stacks init_stacks |
608 | # define coro_init_stacks init_stacks |
481 | #else |
609 | #else |
482 | static void |
610 | static void |
483 | coro_init_stacks (pTHX) |
611 | coro_init_stacks (pTHX) |
484 | { |
612 | { |
485 | PL_curstackinfo = new_stackinfo(64, 6); |
613 | PL_curstackinfo = new_stackinfo(32, 8); |
486 | PL_curstackinfo->si_type = PERLSI_MAIN; |
614 | PL_curstackinfo->si_type = PERLSI_MAIN; |
487 | PL_curstack = PL_curstackinfo->si_stack; |
615 | PL_curstack = PL_curstackinfo->si_stack; |
488 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
616 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
489 | |
617 | |
490 | PL_stack_base = AvARRAY(PL_curstack); |
618 | PL_stack_base = AvARRAY(PL_curstack); |
491 | PL_stack_sp = PL_stack_base; |
619 | PL_stack_sp = PL_stack_base; |
492 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
620 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
493 | |
621 | |
494 | New(50,PL_tmps_stack,64,SV*); |
622 | New(50,PL_tmps_stack,32,SV*); |
495 | PL_tmps_floor = -1; |
623 | PL_tmps_floor = -1; |
496 | PL_tmps_ix = -1; |
624 | PL_tmps_ix = -1; |
497 | PL_tmps_max = 64; |
625 | PL_tmps_max = 32; |
498 | |
626 | |
499 | New(54,PL_markstack,16,I32); |
627 | New(54,PL_markstack,16,I32); |
500 | PL_markstack_ptr = PL_markstack; |
628 | PL_markstack_ptr = PL_markstack; |
501 | PL_markstack_max = PL_markstack + 16; |
629 | PL_markstack_max = PL_markstack + 16; |
502 | |
630 | |
503 | #ifdef SET_MARK_OFFSET |
631 | #ifdef SET_MARK_OFFSET |
504 | SET_MARK_OFFSET; |
632 | SET_MARK_OFFSET; |
505 | #endif |
633 | #endif |
506 | |
634 | |
507 | New(54,PL_scopestack,16,I32); |
635 | New(54,PL_scopestack,8,I32); |
508 | PL_scopestack_ix = 0; |
636 | PL_scopestack_ix = 0; |
509 | PL_scopestack_max = 16; |
637 | PL_scopestack_max = 8; |
510 | |
638 | |
511 | New(54,PL_savestack,64,ANY); |
639 | New(54,PL_savestack,24,ANY); |
512 | PL_savestack_ix = 0; |
640 | PL_savestack_ix = 0; |
513 | PL_savestack_max = 64; |
641 | PL_savestack_max = 24; |
514 | |
642 | |
515 | #if !PERL_VERSION_ATLEAST (5,9,0) |
643 | #if !PERL_VERSION_ATLEAST (5,10,0) |
516 | New(54,PL_retstack,4,OP*); |
644 | New(54,PL_retstack,4,OP*); |
517 | PL_retstack_ix = 0; |
645 | PL_retstack_ix = 0; |
518 | PL_retstack_max = 4; |
646 | PL_retstack_max = 4; |
519 | #endif |
647 | #endif |
520 | } |
648 | } |
… | |
… | |
522 | |
650 | |
523 | /* |
651 | /* |
524 | * destroy the stacks, the callchain etc... |
652 | * destroy the stacks, the callchain etc... |
525 | */ |
653 | */ |
526 | static void |
654 | static void |
527 | coro_destroy_stacks (pTHX) |
655 | coro_destruct_stacks (pTHX) |
528 | { |
656 | { |
529 | while (PL_curstackinfo->si_next) |
657 | while (PL_curstackinfo->si_next) |
530 | PL_curstackinfo = PL_curstackinfo->si_next; |
658 | PL_curstackinfo = PL_curstackinfo->si_next; |
531 | |
659 | |
532 | while (PL_curstackinfo) |
660 | while (PL_curstackinfo) |
… | |
… | |
543 | |
671 | |
544 | Safefree (PL_tmps_stack); |
672 | Safefree (PL_tmps_stack); |
545 | Safefree (PL_markstack); |
673 | Safefree (PL_markstack); |
546 | Safefree (PL_scopestack); |
674 | Safefree (PL_scopestack); |
547 | Safefree (PL_savestack); |
675 | Safefree (PL_savestack); |
548 | #if !PERL_VERSION_ATLEAST (5,9,0) |
676 | #if !PERL_VERSION_ATLEAST (5,10,0) |
549 | Safefree (PL_retstack); |
677 | Safefree (PL_retstack); |
550 | #endif |
678 | #endif |
551 | } |
679 | } |
552 | |
680 | |
553 | static size_t |
681 | static size_t |
… | |
… | |
555 | { |
683 | { |
556 | size_t rss = sizeof (*coro); |
684 | size_t rss = sizeof (*coro); |
557 | |
685 | |
558 | if (coro->mainstack) |
686 | if (coro->mainstack) |
559 | { |
687 | { |
|
|
688 | perl_slots tmp_slot; |
|
|
689 | perl_slots *slot; |
|
|
690 | |
560 | if (coro->flags & CF_RUNNING) |
691 | if (coro->flags & CF_RUNNING) |
561 | { |
692 | { |
|
|
693 | slot = &tmp_slot; |
|
|
694 | |
562 | #define VAR(name,type)coro->name = PL_ ## name; |
695 | #define VAR(name,type) slot->name = PL_ ## name; |
563 | # include "state.h" |
696 | # include "state.h" |
564 | #undef VAR |
697 | #undef VAR |
565 | } |
698 | } |
|
|
699 | else |
|
|
700 | slot = coro->slot; |
566 | |
701 | |
|
|
702 | if (slot) |
|
|
703 | { |
567 | rss += sizeof (coro->curstackinfo); |
704 | rss += sizeof (slot->curstackinfo); |
568 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
569 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
705 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
570 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
706 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
571 | rss += coro->tmps_max * sizeof (SV *); |
707 | rss += slot->tmps_max * sizeof (SV *); |
572 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
708 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
573 | rss += coro->scopestack_max * sizeof (I32); |
709 | rss += slot->scopestack_max * sizeof (I32); |
574 | rss += coro->savestack_max * sizeof (ANY); |
710 | rss += slot->savestack_max * sizeof (ANY); |
575 | |
711 | |
576 | #if !PERL_VERSION_ATLEAST (5,9,0) |
712 | #if !PERL_VERSION_ATLEAST (5,10,0) |
577 | rss += coro->retstack_max * sizeof (OP *); |
713 | rss += slot->retstack_max * sizeof (OP *); |
578 | #endif |
714 | #endif |
|
|
715 | } |
579 | } |
716 | } |
580 | |
717 | |
581 | return rss; |
718 | return rss; |
582 | } |
719 | } |
583 | |
720 | |
584 | /** coroutine stack handling ************************************************/ |
721 | /** coroutine stack handling ************************************************/ |
|
|
722 | |
|
|
723 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
724 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
725 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
726 | |
|
|
727 | /* apparently < 5.8.8 */ |
|
|
728 | #ifndef MgPV_nolen_const |
|
|
729 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
730 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
731 | (const char*)(mg)->mg_ptr) |
|
|
732 | #endif |
|
|
733 | |
|
|
734 | /* |
|
|
735 | * This overrides the default magic get method of %SIG elements. |
|
|
736 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
737 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
738 | * readback here. |
|
|
739 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
740 | * not expecting this to actually change the hook. This is a potential problem |
|
|
741 | * when a schedule happens then, but we ignore this. |
|
|
742 | */ |
|
|
743 | static int |
|
|
744 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
745 | { |
|
|
746 | const char *s = MgPV_nolen_const (mg); |
|
|
747 | |
|
|
748 | if (*s == '_') |
|
|
749 | { |
|
|
750 | SV **svp = 0; |
|
|
751 | |
|
|
752 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
753 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
754 | |
|
|
755 | if (svp) |
|
|
756 | { |
|
|
757 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
758 | return 0; |
|
|
759 | } |
|
|
760 | } |
|
|
761 | |
|
|
762 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
763 | } |
|
|
764 | |
|
|
765 | static int |
|
|
766 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
767 | { |
|
|
768 | const char *s = MgPV_nolen_const (mg); |
|
|
769 | |
|
|
770 | if (*s == '_') |
|
|
771 | { |
|
|
772 | SV **svp = 0; |
|
|
773 | |
|
|
774 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
775 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
776 | |
|
|
777 | if (svp) |
|
|
778 | { |
|
|
779 | SV *old = *svp; |
|
|
780 | *svp = 0; |
|
|
781 | SvREFCNT_dec (old); |
|
|
782 | return 0; |
|
|
783 | } |
|
|
784 | } |
|
|
785 | |
|
|
786 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
787 | } |
|
|
788 | |
|
|
789 | static int |
|
|
790 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
791 | { |
|
|
792 | const char *s = MgPV_nolen_const (mg); |
|
|
793 | |
|
|
794 | if (*s == '_') |
|
|
795 | { |
|
|
796 | SV **svp = 0; |
|
|
797 | |
|
|
798 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
799 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
800 | |
|
|
801 | if (svp) |
|
|
802 | { |
|
|
803 | SV *old = *svp; |
|
|
804 | *svp = newSVsv (sv); |
|
|
805 | SvREFCNT_dec (old); |
|
|
806 | return 0; |
|
|
807 | } |
|
|
808 | } |
|
|
809 | |
|
|
810 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
811 | } |
|
|
812 | |
|
|
813 | static void |
|
|
814 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
815 | { |
|
|
816 | /* kind of mega-hacky, but works */ |
|
|
817 | ta->next = ta->prev = (struct coro *)ta; |
|
|
818 | } |
|
|
819 | |
|
|
820 | static int |
|
|
821 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
822 | { |
|
|
823 | return 0; |
|
|
824 | } |
585 | |
825 | |
586 | static void |
826 | static void |
587 | coro_setup (pTHX_ struct coro *coro) |
827 | coro_setup (pTHX_ struct coro *coro) |
588 | { |
828 | { |
589 | /* |
829 | /* |
… | |
… | |
594 | PL_runops = RUNOPS_DEFAULT; |
834 | PL_runops = RUNOPS_DEFAULT; |
595 | PL_curcop = &PL_compiling; |
835 | PL_curcop = &PL_compiling; |
596 | PL_in_eval = EVAL_NULL; |
836 | PL_in_eval = EVAL_NULL; |
597 | PL_comppad = 0; |
837 | PL_comppad = 0; |
598 | PL_curpm = 0; |
838 | PL_curpm = 0; |
|
|
839 | PL_curpad = 0; |
599 | PL_localizing = 0; |
840 | PL_localizing = 0; |
600 | PL_dirty = 0; |
841 | PL_dirty = 0; |
601 | PL_restartop = 0; |
842 | PL_restartop = 0; |
|
|
843 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
844 | PL_parser = 0; |
|
|
845 | #endif |
|
|
846 | |
|
|
847 | /* recreate the die/warn hooks */ |
|
|
848 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
849 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
602 | |
850 | |
603 | GvSV (PL_defgv) = NEWSV (0, 0); |
851 | GvSV (PL_defgv) = newSV (0); |
604 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
852 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
605 | GvSV (PL_errgv) = NEWSV (0, 0); |
853 | GvSV (PL_errgv) = newSV (0); |
606 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
854 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
607 | PL_rs = newSVsv (GvSV (irsgv)); |
855 | PL_rs = newSVsv (GvSV (irsgv)); |
608 | |
856 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
609 | SvREFCNT_inc (PL_defoutgv); |
|
|
610 | |
857 | |
611 | { |
858 | { |
612 | dSP; |
859 | dSP; |
613 | LOGOP myop; |
860 | UNOP myop; |
614 | |
861 | |
615 | Zero (&myop, 1, LOGOP); |
862 | Zero (&myop, 1, UNOP); |
616 | myop.op_next = Nullop; |
863 | myop.op_next = Nullop; |
617 | myop.op_flags = OPf_WANT_VOID; |
864 | myop.op_flags = OPf_WANT_VOID; |
618 | |
865 | |
619 | PUSHMARK (SP); |
866 | PUSHMARK (SP); |
620 | XPUSHs (av_shift (GvAV (PL_defgv))); |
867 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
621 | PUTBACK; |
868 | PUTBACK; |
622 | PL_op = (OP *)&myop; |
869 | PL_op = (OP *)&myop; |
623 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
870 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
624 | SPAGAIN; |
871 | SPAGAIN; |
625 | } |
872 | } |
626 | |
873 | |
627 | ENTER; /* necessary e.g. for dounwind */ |
874 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
875 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
876 | */ |
|
|
877 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
878 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
628 | } |
879 | } |
629 | |
880 | |
630 | static void |
881 | static void |
631 | coro_destroy (pTHX_ struct coro *coro) |
882 | coro_destruct (pTHX_ struct coro *coro) |
632 | { |
883 | { |
633 | if (!IN_DESTRUCT) |
884 | if (!IN_DESTRUCT) |
634 | { |
885 | { |
635 | /* restore all saved variables and stuff */ |
886 | /* restore all saved variables and stuff */ |
636 | LEAVE_SCOPE (0); |
887 | LEAVE_SCOPE (0); |
… | |
… | |
652 | SvREFCNT_dec (GvSV (PL_errgv)); |
903 | SvREFCNT_dec (GvSV (PL_errgv)); |
653 | SvREFCNT_dec (PL_defoutgv); |
904 | SvREFCNT_dec (PL_defoutgv); |
654 | SvREFCNT_dec (PL_rs); |
905 | SvREFCNT_dec (PL_rs); |
655 | SvREFCNT_dec (GvSV (irsgv)); |
906 | SvREFCNT_dec (GvSV (irsgv)); |
656 | |
907 | |
|
|
908 | SvREFCNT_dec (PL_diehook); |
|
|
909 | SvREFCNT_dec (PL_warnhook); |
|
|
910 | |
657 | SvREFCNT_dec (coro->saved_deffh); |
911 | SvREFCNT_dec (coro->saved_deffh); |
658 | //SvREFCNT_dec (coro->throw); |
912 | SvREFCNT_dec (coro->throw); |
659 | |
913 | |
660 | coro_destroy_stacks (aTHX); |
914 | coro_destruct_stacks (aTHX); |
661 | } |
915 | } |
662 | |
916 | |
663 | static void |
917 | INLINE void |
664 | free_coro_mortal (pTHX) |
918 | free_coro_mortal (pTHX) |
665 | { |
919 | { |
666 | if (coro_mortal) |
920 | if (expect_true (coro_mortal)) |
667 | { |
921 | { |
668 | SvREFCNT_dec (coro_mortal); |
922 | SvREFCNT_dec (coro_mortal); |
669 | coro_mortal = 0; |
923 | coro_mortal = 0; |
670 | } |
924 | } |
671 | } |
925 | } |
… | |
… | |
673 | static int |
927 | static int |
674 | runops_trace (pTHX) |
928 | runops_trace (pTHX) |
675 | { |
929 | { |
676 | COP *oldcop = 0; |
930 | COP *oldcop = 0; |
677 | int oldcxix = -2; |
931 | int oldcxix = -2; |
678 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
932 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
679 | coro_cctx *cctx = coro->cctx; |
933 | coro_cctx *cctx = coro->cctx; |
680 | |
934 | |
681 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
935 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
682 | { |
936 | { |
683 | PERL_ASYNC_CHECK (); |
937 | PERL_ASYNC_CHECK (); |
… | |
… | |
700 | bot = PL_stack_base + cx->blk_oldsp + 1; |
954 | bot = PL_stack_base + cx->blk_oldsp + 1; |
701 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
955 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
702 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
956 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
703 | : bot; |
957 | : bot; |
704 | |
958 | |
|
|
959 | av_extend (av, top - bot); |
705 | while (bot < top) |
960 | while (bot < top) |
706 | av_push (av, SvREFCNT_inc (*bot++)); |
961 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
707 | |
962 | |
708 | PL_runops = RUNOPS_DEFAULT; |
963 | PL_runops = RUNOPS_DEFAULT; |
709 | ENTER; |
964 | ENTER; |
710 | SAVETMPS; |
965 | SAVETMPS; |
711 | EXTEND (SP, 3); |
966 | EXTEND (SP, 3); |
… | |
… | |
749 | SAVETMPS; |
1004 | SAVETMPS; |
750 | EXTEND (SP, 3); |
1005 | EXTEND (SP, 3); |
751 | PUSHMARK (SP); |
1006 | PUSHMARK (SP); |
752 | PUSHs (&PL_sv_yes); |
1007 | PUSHs (&PL_sv_yes); |
753 | PUSHs (fullname); |
1008 | PUSHs (fullname); |
754 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1009 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
755 | PUTBACK; |
1010 | PUTBACK; |
756 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1011 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
757 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1012 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
758 | SPAGAIN; |
1013 | SPAGAIN; |
759 | FREETMPS; |
1014 | FREETMPS; |
… | |
… | |
791 | |
1046 | |
792 | TAINT_NOT; |
1047 | TAINT_NOT; |
793 | return 0; |
1048 | return 0; |
794 | } |
1049 | } |
795 | |
1050 | |
|
|
1051 | static void |
|
|
1052 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
|
|
1053 | { |
|
|
1054 | ta->prev = (struct coro *)cctx; |
|
|
1055 | ta->next = 0; |
|
|
1056 | } |
|
|
1057 | |
796 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1058 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
797 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1059 | /* _cctx_init should be careful, as it could be called at almost any time */ |
798 | /* during execution of a perl program */ |
1060 | /* during execution of a perl program */ |
|
|
1061 | /* also initialises PL_top_env */ |
799 | static void NOINLINE |
1062 | static void NOINLINE |
800 | prepare_cctx (pTHX_ coro_cctx *cctx) |
1063 | cctx_prepare (pTHX_ coro_cctx *cctx) |
801 | { |
1064 | { |
802 | dSP; |
1065 | dSP; |
803 | LOGOP myop; |
1066 | UNOP myop; |
804 | |
1067 | |
805 | PL_top_env = &PL_start_env; |
1068 | PL_top_env = &PL_start_env; |
806 | |
1069 | |
807 | if (cctx->flags & CC_TRACE) |
1070 | if (cctx->flags & CC_TRACE) |
808 | PL_runops = runops_trace; |
1071 | PL_runops = runops_trace; |
809 | |
1072 | |
810 | Zero (&myop, 1, LOGOP); |
1073 | Zero (&myop, 1, UNOP); |
811 | myop.op_next = PL_op; |
1074 | myop.op_next = PL_op; |
812 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1075 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
813 | |
1076 | |
814 | PUSHMARK (SP); |
1077 | PUSHMARK (SP); |
815 | EXTEND (SP, 2); |
1078 | EXTEND (SP, 2); |
816 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1079 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
817 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1080 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
818 | PUTBACK; |
1081 | PUTBACK; |
819 | PL_op = (OP *)&myop; |
1082 | PL_op = (OP *)&myop; |
820 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1083 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
821 | SPAGAIN; |
1084 | SPAGAIN; |
822 | } |
1085 | } |
823 | |
1086 | |
|
|
1087 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1088 | INLINE void |
|
|
1089 | transfer_tail (pTHX) |
|
|
1090 | { |
|
|
1091 | free_coro_mortal (aTHX); |
|
|
1092 | } |
|
|
1093 | |
824 | /* |
1094 | /* |
825 | * this is a _very_ stripped down perl interpreter ;) |
1095 | * this is a _very_ stripped down perl interpreter ;) |
826 | */ |
1096 | */ |
827 | static void |
1097 | static void |
828 | coro_run (void *arg) |
1098 | cctx_run (void *arg) |
829 | { |
1099 | { |
|
|
1100 | #ifdef USE_ITHREADS |
|
|
1101 | # if CORO_PTHREAD |
|
|
1102 | PERL_SET_CONTEXT (coro_thx); |
|
|
1103 | # endif |
|
|
1104 | #endif |
|
|
1105 | { |
830 | dTHX; |
1106 | dTHX; |
831 | |
1107 | |
832 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1108 | /* normally we would need to skip the entersub here */ |
833 | UNLOCK; |
1109 | /* not doing so will re-execute it, which is exactly what we want */ |
834 | |
|
|
835 | /* we now skip the entersub that lead to transfer() */ |
|
|
836 | PL_op = PL_op->op_next; |
1110 | /* PL_nop = PL_nop->op_next */ |
837 | |
1111 | |
838 | /* inject a fake subroutine call to cctx_init */ |
1112 | /* inject a fake subroutine call to cctx_init */ |
839 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
1113 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
840 | |
1114 | |
|
|
1115 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1116 | transfer_tail (aTHX); |
|
|
1117 | |
841 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1118 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
842 | PL_restartop = PL_op; |
1119 | PL_restartop = PL_op; |
843 | perl_run (PL_curinterp); |
1120 | perl_run (PL_curinterp); |
844 | |
1121 | |
845 | /* |
1122 | /* |
846 | * If perl-run returns we assume exit() was being called or the coro |
1123 | * If perl-run returns we assume exit() was being called or the coro |
847 | * fell off the end, which seems to be the only valid (non-bug) |
1124 | * fell off the end, which seems to be the only valid (non-bug) |
848 | * reason for perl_run to return. We try to exit by jumping to the |
1125 | * reason for perl_run to return. We try to exit by jumping to the |
849 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1126 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
850 | * coroutine as Coro has no such concept |
1127 | * coroutine as Coro has no such concept |
851 | */ |
1128 | */ |
852 | PL_top_env = main_top_env; |
1129 | PL_top_env = main_top_env; |
853 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1130 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1131 | } |
854 | } |
1132 | } |
855 | |
1133 | |
856 | static coro_cctx * |
1134 | static coro_cctx * |
857 | cctx_new () |
1135 | cctx_new () |
858 | { |
1136 | { |
859 | coro_cctx *cctx; |
1137 | coro_cctx *cctx; |
|
|
1138 | |
|
|
1139 | ++cctx_count; |
|
|
1140 | New (0, cctx, 1, coro_cctx); |
|
|
1141 | |
|
|
1142 | cctx->gen = cctx_gen; |
|
|
1143 | cctx->flags = 0; |
|
|
1144 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1145 | |
|
|
1146 | return cctx; |
|
|
1147 | } |
|
|
1148 | |
|
|
1149 | /* create a new cctx only suitable as source */ |
|
|
1150 | static coro_cctx * |
|
|
1151 | cctx_new_empty () |
|
|
1152 | { |
|
|
1153 | coro_cctx *cctx = cctx_new (); |
|
|
1154 | |
|
|
1155 | cctx->sptr = 0; |
|
|
1156 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1157 | |
|
|
1158 | return cctx; |
|
|
1159 | } |
|
|
1160 | |
|
|
1161 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1162 | static coro_cctx * |
|
|
1163 | cctx_new_run () |
|
|
1164 | { |
|
|
1165 | coro_cctx *cctx = cctx_new (); |
860 | void *stack_start; |
1166 | void *stack_start; |
861 | size_t stack_size; |
1167 | size_t stack_size; |
862 | |
1168 | |
863 | ++cctx_count; |
|
|
864 | |
|
|
865 | Newz (0, cctx, 1, coro_cctx); |
|
|
866 | |
|
|
867 | #if HAVE_MMAP |
1169 | #if HAVE_MMAP |
868 | |
|
|
869 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1170 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
870 | /* mmap supposedly does allocate-on-write for us */ |
1171 | /* mmap supposedly does allocate-on-write for us */ |
871 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1172 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
872 | |
1173 | |
873 | if (cctx->sptr != (void *)-1) |
1174 | if (cctx->sptr != (void *)-1) |
874 | { |
1175 | { |
875 | # if CORO_STACKGUARD |
1176 | #if CORO_STACKGUARD |
876 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1177 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
877 | # endif |
1178 | #endif |
878 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1179 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
879 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1180 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
880 | cctx->flags |= CC_MAPPED; |
1181 | cctx->flags |= CC_MAPPED; |
881 | } |
1182 | } |
882 | else |
1183 | else |
883 | #endif |
1184 | #endif |
884 | { |
1185 | { |
885 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1186 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
886 | New (0, cctx->sptr, coro_stacksize, long); |
1187 | New (0, cctx->sptr, cctx_stacksize, long); |
887 | |
1188 | |
888 | if (!cctx->sptr) |
1189 | if (!cctx->sptr) |
889 | { |
1190 | { |
890 | perror ("FATAL: unable to allocate stack for coroutine"); |
1191 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
891 | _exit (EXIT_FAILURE); |
1192 | _exit (EXIT_FAILURE); |
892 | } |
1193 | } |
893 | |
1194 | |
894 | stack_start = cctx->sptr; |
1195 | stack_start = cctx->sptr; |
895 | stack_size = cctx->ssize; |
1196 | stack_size = cctx->ssize; |
896 | } |
1197 | } |
897 | |
1198 | |
898 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1199 | #if CORO_USE_VALGRIND |
|
|
1200 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1201 | #endif |
|
|
1202 | |
899 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
1203 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
900 | |
1204 | |
901 | return cctx; |
1205 | return cctx; |
902 | } |
1206 | } |
903 | |
1207 | |
904 | static void |
1208 | static void |
… | |
… | |
906 | { |
1210 | { |
907 | if (!cctx) |
1211 | if (!cctx) |
908 | return; |
1212 | return; |
909 | |
1213 | |
910 | --cctx_count; |
1214 | --cctx_count; |
|
|
1215 | coro_destroy (&cctx->cctx); |
911 | |
1216 | |
|
|
1217 | /* coro_transfer creates new, empty cctx's */ |
|
|
1218 | if (cctx->sptr) |
|
|
1219 | { |
912 | #if CORO_USE_VALGRIND |
1220 | #if CORO_USE_VALGRIND |
913 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1221 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
914 | #endif |
1222 | #endif |
915 | |
1223 | |
916 | #if HAVE_MMAP |
1224 | #if HAVE_MMAP |
917 | if (cctx->flags & CC_MAPPED) |
1225 | if (cctx->flags & CC_MAPPED) |
918 | munmap (cctx->sptr, cctx->ssize); |
1226 | munmap (cctx->sptr, cctx->ssize); |
919 | else |
1227 | else |
920 | #endif |
1228 | #endif |
921 | Safefree (cctx->sptr); |
1229 | Safefree (cctx->sptr); |
|
|
1230 | } |
922 | |
1231 | |
923 | Safefree (cctx); |
1232 | Safefree (cctx); |
924 | } |
1233 | } |
|
|
1234 | |
|
|
1235 | /* wether this cctx should be destructed */ |
|
|
1236 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
925 | |
1237 | |
926 | static coro_cctx * |
1238 | static coro_cctx * |
927 | cctx_get (pTHX) |
1239 | cctx_get (pTHX) |
928 | { |
1240 | { |
929 | while (cctx_first) |
1241 | while (expect_true (cctx_first)) |
930 | { |
1242 | { |
931 | coro_cctx *cctx = cctx_first; |
1243 | coro_cctx *cctx = cctx_first; |
932 | cctx_first = cctx->next; |
1244 | cctx_first = cctx->next; |
933 | --cctx_idle; |
1245 | --cctx_idle; |
934 | |
1246 | |
935 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
1247 | if (expect_true (!CCTX_EXPIRED (cctx))) |
936 | return cctx; |
1248 | return cctx; |
937 | |
1249 | |
938 | cctx_destroy (cctx); |
1250 | cctx_destroy (cctx); |
939 | } |
1251 | } |
940 | |
1252 | |
941 | return cctx_new (); |
1253 | return cctx_new_run (); |
942 | } |
1254 | } |
943 | |
1255 | |
944 | static void |
1256 | static void |
945 | cctx_put (coro_cctx *cctx) |
1257 | cctx_put (coro_cctx *cctx) |
946 | { |
1258 | { |
|
|
1259 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1260 | |
947 | /* free another cctx if overlimit */ |
1261 | /* free another cctx if overlimit */ |
948 | if (cctx_idle >= MAX_IDLE_CCTX) |
1262 | if (expect_false (cctx_idle >= cctx_max_idle)) |
949 | { |
1263 | { |
950 | coro_cctx *first = cctx_first; |
1264 | coro_cctx *first = cctx_first; |
951 | cctx_first = first->next; |
1265 | cctx_first = first->next; |
952 | --cctx_idle; |
1266 | --cctx_idle; |
953 | |
1267 | |
… | |
… | |
959 | cctx_first = cctx; |
1273 | cctx_first = cctx; |
960 | } |
1274 | } |
961 | |
1275 | |
962 | /** coroutine switching *****************************************************/ |
1276 | /** coroutine switching *****************************************************/ |
963 | |
1277 | |
964 | static void NOINLINE |
1278 | static void |
965 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1279 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
966 | { |
1280 | { |
967 | if (prev != next) |
1281 | if (expect_true (prev != next)) |
968 | { |
1282 | { |
969 | if (!(prev->flags & (CF_RUNNING | CF_NEW))) |
1283 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
970 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1284 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
971 | |
1285 | |
972 | if (next->flags & CF_RUNNING) |
1286 | if (expect_false (next->flags & CF_RUNNING)) |
973 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1287 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
974 | |
1288 | |
975 | if (next->flags & CF_DESTROYED) |
1289 | if (expect_false (next->flags & CF_DESTROYED)) |
976 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1290 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
977 | |
1291 | |
|
|
1292 | #if !PERL_VERSION_ATLEAST (5,10,0) |
978 | if (PL_lex_state != LEX_NOTPARSING) |
1293 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
979 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
1294 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1295 | #endif |
980 | } |
1296 | } |
981 | } |
1297 | } |
982 | |
1298 | |
983 | /* always use the TRANSFER macro */ |
1299 | /* always use the TRANSFER macro */ |
984 | static void NOINLINE |
1300 | static void NOINLINE |
985 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1301 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
986 | { |
1302 | { |
987 | dSTACKLEVEL; |
1303 | dSTACKLEVEL; |
988 | |
1304 | |
989 | /* sometimes transfer is only called to set idle_sp */ |
1305 | /* sometimes transfer is only called to set idle_sp */ |
990 | if (!next) |
1306 | if (expect_false (!next)) |
991 | { |
1307 | { |
992 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1308 | ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; |
993 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1309 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
994 | } |
1310 | } |
995 | else if (prev != next) |
1311 | else if (expect_true (prev != next)) |
996 | { |
1312 | { |
997 | coro_cctx *prev__cctx; |
1313 | coro_cctx *prev__cctx; |
998 | |
1314 | |
999 | if (prev->flags & CF_NEW) |
1315 | if (expect_false (prev->flags & CF_NEW)) |
1000 | { |
1316 | { |
1001 | /* create a new empty context */ |
1317 | /* create a new empty/source context */ |
1002 | Newz (0, prev->cctx, 1, coro_cctx); |
1318 | prev->cctx = cctx_new_empty (); |
1003 | prev->flags &= ~CF_NEW; |
1319 | prev->flags &= ~CF_NEW; |
1004 | prev->flags |= CF_RUNNING; |
1320 | prev->flags |= CF_RUNNING; |
1005 | } |
1321 | } |
1006 | |
1322 | |
1007 | prev->flags &= ~CF_RUNNING; |
1323 | prev->flags &= ~CF_RUNNING; |
1008 | next->flags |= CF_RUNNING; |
1324 | next->flags |= CF_RUNNING; |
1009 | |
1325 | |
1010 | LOCK; |
1326 | /* first get rid of the old state */ |
|
|
1327 | save_perl (aTHX_ prev); |
1011 | |
1328 | |
1012 | if (next->flags & CF_NEW) |
1329 | if (expect_false (next->flags & CF_NEW)) |
1013 | { |
1330 | { |
1014 | /* need to start coroutine */ |
1331 | /* need to start coroutine */ |
1015 | next->flags &= ~CF_NEW; |
1332 | next->flags &= ~CF_NEW; |
1016 | /* first get rid of the old state */ |
|
|
1017 | save_perl (aTHX_ prev); |
|
|
1018 | /* setup coroutine call */ |
1333 | /* setup coroutine call */ |
1019 | coro_setup (aTHX_ next); |
1334 | coro_setup (aTHX_ next); |
1020 | } |
1335 | } |
1021 | else |
1336 | else |
|
|
1337 | load_perl (aTHX_ next); |
|
|
1338 | |
|
|
1339 | prev__cctx = prev->cctx; |
|
|
1340 | |
|
|
1341 | /* possibly untie and reuse the cctx */ |
|
|
1342 | if (expect_true ( |
|
|
1343 | prev__cctx->idle_sp == (void *)stacklevel |
|
|
1344 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1345 | && !force_cctx |
|
|
1346 | )) |
1022 | { |
1347 | { |
1023 | /* coroutine already started */ |
|
|
1024 | save_perl (aTHX_ prev); |
|
|
1025 | load_perl (aTHX_ next); |
|
|
1026 | } |
|
|
1027 | |
|
|
1028 | prev__cctx = prev->cctx; |
|
|
1029 | |
|
|
1030 | /* possibly "free" the cctx */ |
|
|
1031 | if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) |
|
|
1032 | { |
|
|
1033 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1348 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1034 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1349 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1035 | |
1350 | |
1036 | prev->cctx = 0; |
1351 | prev->cctx = 0; |
|
|
1352 | |
|
|
1353 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1354 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1355 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1356 | if (!next->cctx) |
|
|
1357 | next->cctx = cctx_get (aTHX); |
1037 | |
1358 | |
1038 | cctx_put (prev__cctx); |
1359 | cctx_put (prev__cctx); |
1039 | } |
1360 | } |
1040 | |
1361 | |
1041 | ++next->usecount; |
1362 | ++next->usecount; |
1042 | |
1363 | |
1043 | if (!next->cctx) |
1364 | if (expect_true (!next->cctx)) |
1044 | next->cctx = cctx_get (aTHX); |
1365 | next->cctx = cctx_get (aTHX); |
1045 | |
1366 | |
1046 | if (prev__cctx != next->cctx) |
1367 | if (expect_false (prev__cctx != next->cctx)) |
1047 | { |
1368 | { |
1048 | prev__cctx->top_env = PL_top_env; |
1369 | prev__cctx->top_env = PL_top_env; |
1049 | PL_top_env = next->cctx->top_env; |
1370 | PL_top_env = next->cctx->top_env; |
1050 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1371 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1051 | } |
1372 | } |
1052 | |
1373 | |
1053 | free_coro_mortal (aTHX); |
1374 | transfer_tail (aTHX); |
1054 | UNLOCK; |
|
|
1055 | } |
1375 | } |
1056 | } |
1376 | } |
1057 | |
1377 | |
1058 | struct transfer_args |
|
|
1059 | { |
|
|
1060 | struct coro *prev, *next; |
|
|
1061 | }; |
|
|
1062 | |
|
|
1063 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1378 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1064 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1379 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1065 | |
1380 | |
1066 | /** high level stuff ********************************************************/ |
1381 | /** high level stuff ********************************************************/ |
1067 | |
1382 | |
1068 | static int |
1383 | static int |
1069 | coro_state_destroy (pTHX_ struct coro *coro) |
1384 | coro_state_destroy (pTHX_ struct coro *coro) |
1070 | { |
1385 | { |
1071 | if (coro->flags & CF_DESTROYED) |
1386 | if (coro->flags & CF_DESTROYED) |
1072 | return 0; |
1387 | return 0; |
|
|
1388 | |
|
|
1389 | if (coro->on_destroy) |
|
|
1390 | coro->on_destroy (aTHX_ coro); |
1073 | |
1391 | |
1074 | coro->flags |= CF_DESTROYED; |
1392 | coro->flags |= CF_DESTROYED; |
1075 | |
1393 | |
1076 | if (coro->flags & CF_READY) |
1394 | if (coro->flags & CF_READY) |
1077 | { |
1395 | { |
1078 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1396 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1079 | /* alternative: look through all ready queues and remove the coro */ |
1397 | /* alternative: look through all ready queues and remove the coro */ |
1080 | LOCK; |
|
|
1081 | --coro_nready; |
1398 | --coro_nready; |
1082 | UNLOCK; |
|
|
1083 | } |
1399 | } |
1084 | else |
1400 | else |
1085 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1401 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1086 | |
1402 | |
1087 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1403 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1088 | { |
1404 | { |
1089 | struct coro temp; |
1405 | struct coro temp; |
1090 | |
1406 | |
1091 | if (coro->flags & CF_RUNNING) |
1407 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1092 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1093 | |
1408 | |
1094 | save_perl (aTHX_ &temp); |
1409 | save_perl (aTHX_ &temp); |
1095 | load_perl (aTHX_ coro); |
1410 | load_perl (aTHX_ coro); |
1096 | |
1411 | |
1097 | coro_destroy (aTHX_ coro); |
1412 | coro_destruct (aTHX_ coro); |
1098 | |
1413 | |
1099 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
1414 | load_perl (aTHX_ &temp); |
1100 | |
1415 | |
1101 | coro->mainstack = 0; |
1416 | coro->slot = 0; |
1102 | } |
1417 | } |
1103 | |
1418 | |
1104 | cctx_destroy (coro->cctx); |
1419 | cctx_destroy (coro->cctx); |
1105 | SvREFCNT_dec (coro->args); |
1420 | SvREFCNT_dec (coro->args); |
1106 | |
1421 | |
… | |
… | |
1148 | # define MGf_DUP 0 |
1463 | # define MGf_DUP 0 |
1149 | #endif |
1464 | #endif |
1150 | }; |
1465 | }; |
1151 | |
1466 | |
1152 | static void |
1467 | static void |
1153 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1468 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1154 | { |
1469 | { |
1155 | ta->prev = SvSTATE (prev_sv); |
1470 | ta->prev = SvSTATE (prev_sv); |
1156 | ta->next = SvSTATE (next_sv); |
1471 | ta->next = SvSTATE (next_sv); |
1157 | TRANSFER_CHECK (*ta); |
1472 | TRANSFER_CHECK (*ta); |
1158 | } |
1473 | } |
1159 | |
1474 | |
1160 | static void |
1475 | static void |
1161 | api_transfer (SV *prev_sv, SV *next_sv) |
1476 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1162 | { |
1477 | { |
1163 | dTHX; |
|
|
1164 | struct transfer_args ta; |
1478 | struct coro_transfer_args ta; |
1165 | |
1479 | |
1166 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1480 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1167 | TRANSFER (ta); |
1481 | TRANSFER (ta, 1); |
1168 | } |
1482 | } |
1169 | |
1483 | |
1170 | /** Coro ********************************************************************/ |
1484 | /** Coro ********************************************************************/ |
1171 | |
1485 | |
1172 | static void |
1486 | INLINE void |
1173 | coro_enq (pTHX_ SV *coro_sv) |
1487 | coro_enq (pTHX_ struct coro *coro) |
1174 | { |
1488 | { |
1175 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1489 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1176 | } |
1490 | } |
1177 | |
1491 | |
1178 | static SV * |
1492 | INLINE SV * |
1179 | coro_deq (pTHX_ int min_prio) |
1493 | coro_deq (pTHX) |
1180 | { |
1494 | { |
1181 | int prio = PRIO_MAX - PRIO_MIN; |
1495 | int prio; |
1182 | |
1496 | |
1183 | min_prio -= PRIO_MIN; |
|
|
1184 | if (min_prio < 0) |
|
|
1185 | min_prio = 0; |
|
|
1186 | |
|
|
1187 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1497 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1188 | if (AvFILLp (coro_ready [prio]) >= 0) |
1498 | if (AvFILLp (coro_ready [prio]) >= 0) |
1189 | return av_shift (coro_ready [prio]); |
1499 | return av_shift (coro_ready [prio]); |
1190 | |
1500 | |
1191 | return 0; |
1501 | return 0; |
1192 | } |
1502 | } |
1193 | |
1503 | |
1194 | static int |
1504 | static int |
1195 | api_ready (SV *coro_sv) |
1505 | api_ready (pTHX_ SV *coro_sv) |
1196 | { |
1506 | { |
1197 | dTHX; |
|
|
1198 | struct coro *coro; |
1507 | struct coro *coro; |
|
|
1508 | SV *sv_hook; |
|
|
1509 | void (*xs_hook)(void); |
1199 | |
1510 | |
1200 | if (SvROK (coro_sv)) |
1511 | if (SvROK (coro_sv)) |
1201 | coro_sv = SvRV (coro_sv); |
1512 | coro_sv = SvRV (coro_sv); |
1202 | |
1513 | |
1203 | coro = SvSTATE (coro_sv); |
1514 | coro = SvSTATE (coro_sv); |
… | |
… | |
1205 | if (coro->flags & CF_READY) |
1516 | if (coro->flags & CF_READY) |
1206 | return 0; |
1517 | return 0; |
1207 | |
1518 | |
1208 | coro->flags |= CF_READY; |
1519 | coro->flags |= CF_READY; |
1209 | |
1520 | |
1210 | LOCK; |
1521 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1211 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1522 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1523 | |
|
|
1524 | coro_enq (aTHX_ coro); |
1212 | ++coro_nready; |
1525 | ++coro_nready; |
1213 | UNLOCK; |
1526 | |
|
|
1527 | if (sv_hook) |
|
|
1528 | { |
|
|
1529 | dSP; |
|
|
1530 | |
|
|
1531 | ENTER; |
|
|
1532 | SAVETMPS; |
|
|
1533 | |
|
|
1534 | PUSHMARK (SP); |
|
|
1535 | PUTBACK; |
|
|
1536 | call_sv (sv_hook, G_DISCARD); |
|
|
1537 | SPAGAIN; |
|
|
1538 | |
|
|
1539 | FREETMPS; |
|
|
1540 | LEAVE; |
|
|
1541 | } |
|
|
1542 | |
|
|
1543 | if (xs_hook) |
|
|
1544 | xs_hook (); |
1214 | |
1545 | |
1215 | return 1; |
1546 | return 1; |
1216 | } |
1547 | } |
1217 | |
1548 | |
1218 | static int |
1549 | static int |
1219 | api_is_ready (SV *coro_sv) |
1550 | api_is_ready (pTHX_ SV *coro_sv) |
1220 | { |
1551 | { |
1221 | dTHX; |
|
|
1222 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1552 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1223 | } |
1553 | } |
1224 | |
1554 | |
1225 | static void |
1555 | INLINE void |
1226 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1556 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1227 | { |
1557 | { |
1228 | SV *prev_sv, *next_sv; |
1558 | SV *prev_sv, *next_sv; |
1229 | |
1559 | |
1230 | for (;;) |
1560 | for (;;) |
1231 | { |
1561 | { |
1232 | LOCK; |
|
|
1233 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
1562 | next_sv = coro_deq (aTHX); |
1234 | |
1563 | |
1235 | /* nothing to schedule: call the idle handler */ |
1564 | /* nothing to schedule: call the idle handler */ |
1236 | if (!next_sv) |
1565 | if (expect_false (!next_sv)) |
1237 | { |
1566 | { |
1238 | dSP; |
1567 | dSP; |
1239 | UNLOCK; |
|
|
1240 | |
1568 | |
1241 | ENTER; |
1569 | ENTER; |
1242 | SAVETMPS; |
1570 | SAVETMPS; |
1243 | |
1571 | |
1244 | PUSHMARK (SP); |
1572 | PUSHMARK (SP); |
1245 | PUTBACK; |
1573 | PUTBACK; |
1246 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1574 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1575 | SPAGAIN; |
1247 | |
1576 | |
1248 | FREETMPS; |
1577 | FREETMPS; |
1249 | LEAVE; |
1578 | LEAVE; |
1250 | continue; |
1579 | continue; |
1251 | } |
1580 | } |
1252 | |
1581 | |
1253 | ta->next = SvSTATE (next_sv); |
1582 | ta->next = SvSTATE_hv (next_sv); |
1254 | |
1583 | |
1255 | /* cannot transfer to destroyed coros, skip and look for next */ |
1584 | /* cannot transfer to destroyed coros, skip and look for next */ |
1256 | if (ta->next->flags & CF_DESTROYED) |
1585 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1257 | { |
1586 | { |
1258 | UNLOCK; |
|
|
1259 | SvREFCNT_dec (next_sv); |
1587 | SvREFCNT_dec (next_sv); |
1260 | /* coro_nready is already taken care of by destroy */ |
1588 | /* coro_nready has already been taken care of by destroy */ |
1261 | continue; |
1589 | continue; |
1262 | } |
1590 | } |
1263 | |
1591 | |
1264 | --coro_nready; |
1592 | --coro_nready; |
1265 | UNLOCK; |
|
|
1266 | break; |
1593 | break; |
1267 | } |
1594 | } |
1268 | |
1595 | |
1269 | /* free this only after the transfer */ |
1596 | /* free this only after the transfer */ |
1270 | prev_sv = SvRV (coro_current); |
1597 | prev_sv = SvRV (coro_current); |
1271 | ta->prev = SvSTATE (prev_sv); |
1598 | ta->prev = SvSTATE_hv (prev_sv); |
1272 | TRANSFER_CHECK (*ta); |
1599 | TRANSFER_CHECK (*ta); |
1273 | assert (ta->next->flags & CF_READY); |
1600 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1274 | ta->next->flags &= ~CF_READY; |
1601 | ta->next->flags &= ~CF_READY; |
1275 | SvRV_set (coro_current, next_sv); |
1602 | SvRV_set (coro_current, next_sv); |
1276 | |
1603 | |
1277 | LOCK; |
|
|
1278 | free_coro_mortal (aTHX); |
1604 | free_coro_mortal (aTHX); |
1279 | coro_mortal = prev_sv; |
1605 | coro_mortal = prev_sv; |
1280 | UNLOCK; |
|
|
1281 | } |
1606 | } |
1282 | |
1607 | |
1283 | static void |
1608 | INLINE void |
1284 | prepare_cede (pTHX_ struct transfer_args *ta) |
1609 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1285 | { |
1610 | { |
1286 | api_ready (coro_current); |
1611 | api_ready (aTHX_ coro_current); |
1287 | prepare_schedule (aTHX_ ta); |
1612 | prepare_schedule (aTHX_ ta); |
1288 | } |
1613 | } |
1289 | |
1614 | |
|
|
1615 | INLINE void |
|
|
1616 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1617 | { |
|
|
1618 | SV *prev = SvRV (coro_current); |
|
|
1619 | |
|
|
1620 | if (coro_nready) |
|
|
1621 | { |
|
|
1622 | prepare_schedule (aTHX_ ta); |
|
|
1623 | api_ready (aTHX_ prev); |
|
|
1624 | } |
|
|
1625 | else |
|
|
1626 | prepare_nop (aTHX_ ta); |
|
|
1627 | } |
|
|
1628 | |
|
|
1629 | static void |
|
|
1630 | api_schedule (pTHX) |
|
|
1631 | { |
|
|
1632 | struct coro_transfer_args ta; |
|
|
1633 | |
|
|
1634 | prepare_schedule (aTHX_ &ta); |
|
|
1635 | TRANSFER (ta, 1); |
|
|
1636 | } |
|
|
1637 | |
1290 | static int |
1638 | static int |
1291 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1639 | api_cede (pTHX) |
1292 | { |
1640 | { |
1293 | if (coro_nready) |
1641 | struct coro_transfer_args ta; |
1294 | { |
1642 | |
1295 | SV *prev = SvRV (coro_current); |
|
|
1296 | prepare_schedule (aTHX_ ta); |
1643 | prepare_cede (aTHX_ &ta); |
1297 | api_ready (prev); |
1644 | |
|
|
1645 | if (expect_true (ta.prev != ta.next)) |
|
|
1646 | { |
|
|
1647 | TRANSFER (ta, 1); |
1298 | return 1; |
1648 | return 1; |
1299 | } |
1649 | } |
1300 | else |
1650 | else |
1301 | return 0; |
1651 | return 0; |
1302 | } |
1652 | } |
1303 | |
1653 | |
1304 | static void |
|
|
1305 | api_schedule (void) |
|
|
1306 | { |
|
|
1307 | dTHX; |
|
|
1308 | struct transfer_args ta; |
|
|
1309 | |
|
|
1310 | prepare_schedule (aTHX_ &ta); |
|
|
1311 | TRANSFER (ta); |
|
|
1312 | } |
|
|
1313 | |
|
|
1314 | static int |
1654 | static int |
1315 | api_cede (void) |
1655 | api_cede_notself (pTHX) |
1316 | { |
1656 | { |
1317 | dTHX; |
1657 | if (coro_nready) |
|
|
1658 | { |
1318 | struct transfer_args ta; |
1659 | struct coro_transfer_args ta; |
1319 | |
1660 | |
1320 | prepare_cede (aTHX_ &ta); |
1661 | prepare_cede_notself (aTHX_ &ta); |
1321 | |
|
|
1322 | if (ta.prev != ta.next) |
|
|
1323 | { |
|
|
1324 | TRANSFER (ta); |
1662 | TRANSFER (ta, 1); |
1325 | return 1; |
1663 | return 1; |
1326 | } |
1664 | } |
1327 | else |
1665 | else |
1328 | return 0; |
1666 | return 0; |
1329 | } |
1667 | } |
1330 | |
1668 | |
1331 | static int |
1669 | static void |
1332 | api_cede_notself (void) |
|
|
1333 | { |
|
|
1334 | dTHX; |
|
|
1335 | struct transfer_args ta; |
|
|
1336 | |
|
|
1337 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1338 | { |
|
|
1339 | TRANSFER (ta); |
|
|
1340 | return 1; |
|
|
1341 | } |
|
|
1342 | else |
|
|
1343 | return 0; |
|
|
1344 | } |
|
|
1345 | |
|
|
1346 | static void |
|
|
1347 | api_trace (SV *coro_sv, int flags) |
1670 | api_trace (pTHX_ SV *coro_sv, int flags) |
1348 | { |
1671 | { |
1349 | dTHX; |
|
|
1350 | struct coro *coro = SvSTATE (coro_sv); |
1672 | struct coro *coro = SvSTATE (coro_sv); |
1351 | |
1673 | |
1352 | if (flags & CC_TRACE) |
1674 | if (flags & CC_TRACE) |
1353 | { |
1675 | { |
1354 | if (!coro->cctx) |
1676 | if (!coro->cctx) |
1355 | coro->cctx = cctx_new (); |
1677 | coro->cctx = cctx_new_run (); |
1356 | else if (!(coro->cctx->flags & CC_TRACE)) |
1678 | else if (!(coro->cctx->flags & CC_TRACE)) |
1357 | croak ("cannot enable tracing on coroutine with custom stack"); |
1679 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1358 | |
1680 | |
1359 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1681 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1360 | } |
1682 | } |
1361 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1683 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1362 | { |
1684 | { |
1363 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1685 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1364 | |
1686 | |
1365 | if (coro->flags & CF_RUNNING) |
1687 | if (coro->flags & CF_RUNNING) |
1366 | PL_runops = RUNOPS_DEFAULT; |
1688 | PL_runops = RUNOPS_DEFAULT; |
1367 | else |
1689 | else |
1368 | coro->runops = RUNOPS_DEFAULT; |
1690 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1691 | } |
|
|
1692 | } |
|
|
1693 | |
|
|
1694 | /*****************************************************************************/ |
|
|
1695 | /* PerlIO::cede */ |
|
|
1696 | |
|
|
1697 | typedef struct |
|
|
1698 | { |
|
|
1699 | PerlIOBuf base; |
|
|
1700 | NV next, every; |
|
|
1701 | } PerlIOCede; |
|
|
1702 | |
|
|
1703 | static IV |
|
|
1704 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
1705 | { |
|
|
1706 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1707 | |
|
|
1708 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
1709 | self->next = nvtime () + self->every; |
|
|
1710 | |
|
|
1711 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
1712 | } |
|
|
1713 | |
|
|
1714 | static SV * |
|
|
1715 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
1716 | { |
|
|
1717 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1718 | |
|
|
1719 | return newSVnv (self->every); |
|
|
1720 | } |
|
|
1721 | |
|
|
1722 | static IV |
|
|
1723 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
1724 | { |
|
|
1725 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1726 | double now = nvtime (); |
|
|
1727 | |
|
|
1728 | if (now >= self->next) |
|
|
1729 | { |
|
|
1730 | api_cede (aTHX); |
|
|
1731 | self->next = now + self->every; |
|
|
1732 | } |
|
|
1733 | |
|
|
1734 | return PerlIOBuf_flush (aTHX_ f); |
|
|
1735 | } |
|
|
1736 | |
|
|
1737 | static PerlIO_funcs PerlIO_cede = |
|
|
1738 | { |
|
|
1739 | sizeof(PerlIO_funcs), |
|
|
1740 | "cede", |
|
|
1741 | sizeof(PerlIOCede), |
|
|
1742 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
1743 | PerlIOCede_pushed, |
|
|
1744 | PerlIOBuf_popped, |
|
|
1745 | PerlIOBuf_open, |
|
|
1746 | PerlIOBase_binmode, |
|
|
1747 | PerlIOCede_getarg, |
|
|
1748 | PerlIOBase_fileno, |
|
|
1749 | PerlIOBuf_dup, |
|
|
1750 | PerlIOBuf_read, |
|
|
1751 | PerlIOBuf_unread, |
|
|
1752 | PerlIOBuf_write, |
|
|
1753 | PerlIOBuf_seek, |
|
|
1754 | PerlIOBuf_tell, |
|
|
1755 | PerlIOBuf_close, |
|
|
1756 | PerlIOCede_flush, |
|
|
1757 | PerlIOBuf_fill, |
|
|
1758 | PerlIOBase_eof, |
|
|
1759 | PerlIOBase_error, |
|
|
1760 | PerlIOBase_clearerr, |
|
|
1761 | PerlIOBase_setlinebuf, |
|
|
1762 | PerlIOBuf_get_base, |
|
|
1763 | PerlIOBuf_bufsiz, |
|
|
1764 | PerlIOBuf_get_ptr, |
|
|
1765 | PerlIOBuf_get_cnt, |
|
|
1766 | PerlIOBuf_set_ptrcnt, |
|
|
1767 | }; |
|
|
1768 | |
|
|
1769 | /*****************************************************************************/ |
|
|
1770 | |
|
|
1771 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1772 | static const CV *slf_cv; |
|
|
1773 | static SV *slf_arg0; |
|
|
1774 | static SV *slf_arg1; |
|
|
1775 | static SV *slf_arg2; |
|
|
1776 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1777 | |
|
|
1778 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1779 | /* recreate the stack frame as perl will on following calls */ |
|
|
1780 | /* since entersub cleared the stack */ |
|
|
1781 | static OP * |
|
|
1782 | pp_restore (pTHX) |
|
|
1783 | { |
|
|
1784 | SV **SP = PL_stack_base + slf_ax; |
|
|
1785 | |
|
|
1786 | PUSHMARK (SP); |
|
|
1787 | |
|
|
1788 | EXTEND (SP, 3); |
|
|
1789 | if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); |
|
|
1790 | if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); |
|
|
1791 | if (slf_arg2) PUSHs (sv_2mortal (slf_arg2)); |
|
|
1792 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1793 | |
|
|
1794 | RETURNOP (slf_restore.op_first); |
|
|
1795 | } |
|
|
1796 | |
|
|
1797 | static void |
|
|
1798 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1799 | { |
|
|
1800 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1801 | } |
|
|
1802 | |
|
|
1803 | static void |
|
|
1804 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1805 | { |
|
|
1806 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1807 | |
|
|
1808 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1809 | frame->check = slf_check_nop; |
|
|
1810 | frame->data = (void *)SvIV (arg [0]); |
|
|
1811 | } |
|
|
1812 | |
|
|
1813 | static void |
|
|
1814 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1815 | { |
|
|
1816 | SV **arg = (SV **)slf_frame.data; |
|
|
1817 | |
|
|
1818 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1819 | |
|
|
1820 | /* if the destination has ->throw set, then copy it */ |
|
|
1821 | /* into the current coro's throw slot, so it will be raised */ |
|
|
1822 | /* after the schedule */ |
|
|
1823 | if (expect_false (ta->next->throw)) |
|
|
1824 | { |
|
|
1825 | struct coro *coro = SvSTATE_current; |
|
|
1826 | SvREFCNT_dec (coro->throw); |
|
|
1827 | coro->throw = ta->next->throw; |
|
|
1828 | ta->next->throw = 0; |
|
|
1829 | } |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | static void |
|
|
1833 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1834 | { |
|
|
1835 | if (items != 2) |
|
|
1836 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1837 | |
|
|
1838 | frame->prepare = slf_prepare_transfer; |
|
|
1839 | frame->check = slf_check_nop; |
|
|
1840 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1841 | } |
|
|
1842 | |
|
|
1843 | static void |
|
|
1844 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1845 | { |
|
|
1846 | frame->prepare = prepare_schedule; |
|
|
1847 | frame->check = slf_check_nop; |
|
|
1848 | } |
|
|
1849 | |
|
|
1850 | static void |
|
|
1851 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1852 | { |
|
|
1853 | frame->prepare = prepare_cede; |
|
|
1854 | frame->check = slf_check_nop; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | static void |
|
|
1858 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1859 | { |
|
|
1860 | frame->prepare = prepare_cede_notself; |
|
|
1861 | frame->check = slf_check_nop; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1865 | #define CVf_SLF 0x4000 |
|
|
1866 | |
|
|
1867 | /* |
|
|
1868 | * these not obviously related functions are all rolled into one |
|
|
1869 | * function to increase chances that they all will call transfer with the same |
|
|
1870 | * stack offset |
|
|
1871 | * SLF stands for "schedule-like-function". |
|
|
1872 | */ |
|
|
1873 | static OP * |
|
|
1874 | pp_slf (pTHX) |
|
|
1875 | { |
|
|
1876 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1877 | |
|
|
1878 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1879 | /* the latter happens when a new coro has been started */ |
|
|
1880 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1881 | if (expect_true (!slf_frame.prepare)) |
|
|
1882 | { |
|
|
1883 | /* first iteration */ |
|
|
1884 | dSP; |
|
|
1885 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1886 | int items = SP - arg; /* args without function object */ |
|
|
1887 | SV *gv = *sp; |
|
|
1888 | |
|
|
1889 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1890 | /* for us, divert to the real entersub */ |
|
|
1891 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1892 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1893 | |
|
|
1894 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1895 | { |
|
|
1896 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1897 | AV *av = GvAV (PL_defgv); |
|
|
1898 | arg = AvARRAY (av); |
|
|
1899 | items = AvFILLp (av) + 1; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1903 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1904 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1905 | |
|
|
1906 | /* pop args */ |
|
|
1907 | SP = PL_stack_base + POPMARK; |
|
|
1908 | |
|
|
1909 | PUTBACK; |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | /* now that we have a slf_frame, interpret it! */ |
|
|
1913 | /* we use a callback system not to make the code needlessly */ |
|
|
1914 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1915 | |
|
|
1916 | do |
|
|
1917 | { |
|
|
1918 | struct coro_transfer_args ta; |
|
|
1919 | |
|
|
1920 | slf_frame.prepare (aTHX_ &ta); |
|
|
1921 | TRANSFER (ta, 0); |
|
|
1922 | |
|
|
1923 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1924 | } |
|
|
1925 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1926 | |
|
|
1927 | { |
|
|
1928 | dSP; |
|
|
1929 | SV **bot = PL_stack_base + checkmark; |
|
|
1930 | int gimme = GIMME_V; |
|
|
1931 | |
|
|
1932 | slf_frame.prepare = 0; /* invalidate the frame, so it gets initialised again next time */ |
|
|
1933 | |
|
|
1934 | /* make sure we put something on the stack in scalar context */ |
|
|
1935 | if (gimme == G_SCALAR) |
|
|
1936 | { |
|
|
1937 | if (sp == bot) |
|
|
1938 | XPUSHs (&PL_sv_undef); |
|
|
1939 | |
|
|
1940 | SP = bot + 1; |
1369 | } |
1941 | } |
|
|
1942 | |
|
|
1943 | PUTBACK; |
|
|
1944 | } |
|
|
1945 | |
|
|
1946 | { |
|
|
1947 | struct coro *coro = SvSTATE_current; |
|
|
1948 | |
|
|
1949 | if (expect_false (coro->throw)) |
|
|
1950 | { |
|
|
1951 | SV *exception = sv_2mortal (coro->throw); |
|
|
1952 | |
|
|
1953 | coro->throw = 0; |
|
|
1954 | sv_setsv (ERRSV, exception); |
|
|
1955 | croak (0); |
|
|
1956 | } |
|
|
1957 | } |
|
|
1958 | |
|
|
1959 | return NORMAL; |
1370 | } |
1960 | } |
|
|
1961 | |
|
|
1962 | static void |
|
|
1963 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1964 | { |
|
|
1965 | SV **arg = PL_stack_base + ax; |
|
|
1966 | int items = PL_stack_sp - arg + 1; |
|
|
1967 | |
|
|
1968 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1969 | |
|
|
1970 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1971 | && PL_op->op_ppaddr != pp_slf) |
|
|
1972 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1973 | |
|
|
1974 | #if 0 |
|
|
1975 | if (items > 3) |
|
|
1976 | croak ("Coro only supports up to three arguments to SLF functions currently (not %d), caught", items); |
|
|
1977 | #endif |
|
|
1978 | |
|
|
1979 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1980 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1981 | slf_cv = cv; |
|
|
1982 | |
|
|
1983 | /* we patch the op, and then re-run the whole call */ |
|
|
1984 | /* we have to put the same argument on the stack for this to work */ |
|
|
1985 | /* and this will be done by pp_restore */ |
|
|
1986 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1987 | slf_restore.op_type = OP_CUSTOM; |
|
|
1988 | slf_restore.op_ppaddr = pp_restore; |
|
|
1989 | slf_restore.op_first = PL_op; |
|
|
1990 | |
|
|
1991 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1992 | slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; |
|
|
1993 | slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; |
|
|
1994 | slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; |
|
|
1995 | |
|
|
1996 | PL_op->op_ppaddr = pp_slf; |
|
|
1997 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
1998 | |
|
|
1999 | PL_op = (OP *)&slf_restore; |
|
|
2000 | } |
|
|
2001 | |
|
|
2002 | /*****************************************************************************/ |
|
|
2003 | |
|
|
2004 | static void |
|
|
2005 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2006 | { |
|
|
2007 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2008 | IV count = SvIVX (count_sv); |
|
|
2009 | |
|
|
2010 | count += adjust; |
|
|
2011 | SvIVX (count_sv) = count; |
|
|
2012 | |
|
|
2013 | /* now wake up as many waiters as are expected to lock */ |
|
|
2014 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2015 | { |
|
|
2016 | SV *cb; |
|
|
2017 | |
|
|
2018 | /* swap first two elements so we can shift a waiter */ |
|
|
2019 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2020 | AvARRAY (av)[1] = count_sv; |
|
|
2021 | cb = av_shift (av); |
|
|
2022 | |
|
|
2023 | if (SvOBJECT (cb)) |
|
|
2024 | api_ready (aTHX_ cb); |
|
|
2025 | else |
|
|
2026 | croak ("callbacks not yet supported"); |
|
|
2027 | |
|
|
2028 | SvREFCNT_dec (cb); |
|
|
2029 | |
|
|
2030 | --count; |
|
|
2031 | } |
|
|
2032 | } |
|
|
2033 | |
|
|
2034 | static void |
|
|
2035 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2036 | { |
|
|
2037 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2038 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2039 | } |
|
|
2040 | |
|
|
2041 | static int |
|
|
2042 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2043 | { |
|
|
2044 | AV *av = (AV *)frame->data; |
|
|
2045 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2046 | |
|
|
2047 | if (SvIVX (count_sv) > 0) |
|
|
2048 | { |
|
|
2049 | SvSTATE_current->on_destroy = 0; |
|
|
2050 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2051 | return 0; |
|
|
2052 | } |
|
|
2053 | else |
|
|
2054 | { |
|
|
2055 | int i; |
|
|
2056 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2057 | /* waiters list and only add us if we aren't in there already */ |
|
|
2058 | /* this avoids some degenerate memory usage cases */ |
|
|
2059 | |
|
|
2060 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2061 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2062 | return 1; |
|
|
2063 | |
|
|
2064 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2065 | return 1; |
|
|
2066 | } |
|
|
2067 | } |
|
|
2068 | |
|
|
2069 | static void |
|
|
2070 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2071 | { |
|
|
2072 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2073 | |
|
|
2074 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2075 | { |
|
|
2076 | frame->data = (void *)av; |
|
|
2077 | frame->prepare = prepare_nop; |
|
|
2078 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2079 | } |
|
|
2080 | else |
|
|
2081 | { |
|
|
2082 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2083 | |
|
|
2084 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2085 | frame->prepare = prepare_schedule; |
|
|
2086 | |
|
|
2087 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2088 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2089 | assert (!SvSTATE_current->on_destroy);//D |
|
|
2090 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2091 | } |
|
|
2092 | |
|
|
2093 | frame->check = slf_check_semaphore_down; |
|
|
2094 | |
|
|
2095 | } |
|
|
2096 | |
|
|
2097 | /*****************************************************************************/ |
|
|
2098 | |
|
|
2099 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
2100 | |
|
|
2101 | /* create a closure from XS, returns a code reference */ |
|
|
2102 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
2103 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
2104 | static SV * |
|
|
2105 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
2106 | { |
|
|
2107 | CV *cv = (CV *)NEWSV (0, 0); |
|
|
2108 | |
|
|
2109 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
2110 | |
|
|
2111 | CvANON_on (cv); |
|
|
2112 | CvISXSUB_on (cv); |
|
|
2113 | CvXSUB (cv) = xsub; |
|
|
2114 | GENSUB_ARG = arg; |
|
|
2115 | |
|
|
2116 | return newRV_noinc ((SV *)cv); |
|
|
2117 | } |
|
|
2118 | |
|
|
2119 | /*****************************************************************************/ |
1371 | |
2120 | |
1372 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2121 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1373 | |
2122 | |
1374 | PROTOTYPES: DISABLE |
2123 | PROTOTYPES: DISABLE |
1375 | |
2124 | |
1376 | BOOT: |
2125 | BOOT: |
1377 | { |
2126 | { |
1378 | #ifdef USE_ITHREADS |
2127 | #ifdef USE_ITHREADS |
1379 | MUTEX_INIT (&coro_mutex); |
2128 | # if CORO_PTHREAD |
|
|
2129 | coro_thx = PERL_GET_CONTEXT; |
|
|
2130 | # endif |
1380 | #endif |
2131 | #endif |
1381 | BOOT_PAGESIZE; |
2132 | BOOT_PAGESIZE; |
1382 | |
2133 | |
1383 | irsgv = gv_fetchpv ("/", 1, SVt_PV); |
2134 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
2135 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
2136 | |
|
|
2137 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
2138 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
2139 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
2140 | |
|
|
2141 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
2142 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
2143 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1384 | |
2144 | |
1385 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
2145 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1386 | |
2146 | |
1387 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
2147 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1388 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
2148 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
… | |
… | |
1393 | main_top_env = PL_top_env; |
2153 | main_top_env = PL_top_env; |
1394 | |
2154 | |
1395 | while (main_top_env->je_prev) |
2155 | while (main_top_env->je_prev) |
1396 | main_top_env = main_top_env->je_prev; |
2156 | main_top_env = main_top_env->je_prev; |
1397 | |
2157 | |
|
|
2158 | { |
|
|
2159 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2160 | |
|
|
2161 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2162 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2163 | newSVpv ("coro_slf", 0), 0); |
|
|
2164 | |
|
|
2165 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2166 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2167 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2168 | } |
|
|
2169 | |
1398 | coroapi.ver = CORO_API_VERSION; |
2170 | coroapi.ver = CORO_API_VERSION; |
|
|
2171 | coroapi.rev = CORO_API_REVISION; |
|
|
2172 | |
1399 | coroapi.transfer = api_transfer; |
2173 | coroapi.transfer = api_transfer; |
|
|
2174 | |
|
|
2175 | coroapi.sv_state = SvSTATE_; |
|
|
2176 | coroapi.execute_slf = api_execute_slf; |
|
|
2177 | coroapi.prepare_nop = prepare_nop; |
|
|
2178 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2179 | coroapi.prepare_cede = prepare_cede; |
|
|
2180 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
2181 | |
|
|
2182 | { |
|
|
2183 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
2184 | |
|
|
2185 | if (!svp) croak ("Time::HiRes is required"); |
|
|
2186 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
2187 | |
|
|
2188 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
2189 | } |
1400 | |
2190 | |
1401 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2191 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1402 | } |
2192 | } |
1403 | |
2193 | |
1404 | SV * |
2194 | SV * |
1405 | new (char *klass, ...) |
2195 | new (char *klass, ...) |
1406 | CODE: |
2196 | CODE: |
1407 | { |
2197 | { |
1408 | struct coro *coro; |
2198 | struct coro *coro; |
|
|
2199 | MAGIC *mg; |
1409 | HV *hv; |
2200 | HV *hv; |
1410 | int i; |
2201 | int i; |
1411 | |
2202 | |
1412 | Newz (0, coro, 1, struct coro); |
2203 | Newz (0, coro, 1, struct coro); |
1413 | coro->args = newAV (); |
2204 | coro->args = newAV (); |
… | |
… | |
1416 | if (coro_first) coro_first->prev = coro; |
2207 | if (coro_first) coro_first->prev = coro; |
1417 | coro->next = coro_first; |
2208 | coro->next = coro_first; |
1418 | coro_first = coro; |
2209 | coro_first = coro; |
1419 | |
2210 | |
1420 | coro->hv = hv = newHV (); |
2211 | coro->hv = hv = newHV (); |
1421 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
2212 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
2213 | mg->mg_flags |= MGf_DUP; |
1422 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2214 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1423 | |
2215 | |
|
|
2216 | av_extend (coro->args, items - 1); |
1424 | for (i = 1; i < items; i++) |
2217 | for (i = 1; i < items; i++) |
1425 | av_push (coro->args, newSVsv (ST (i))); |
2218 | av_push (coro->args, newSVsv (ST (i))); |
1426 | } |
2219 | } |
1427 | OUTPUT: |
2220 | OUTPUT: |
1428 | RETVAL |
2221 | RETVAL |
1429 | |
2222 | |
1430 | # these not obviously related functions are all rolled into the same xs |
|
|
1431 | # function to increase chances that they all will call transfer with the same |
|
|
1432 | # stack offset |
|
|
1433 | void |
2223 | void |
1434 | _set_stacklevel (...) |
2224 | _set_stacklevel (...) |
1435 | ALIAS: |
2225 | CODE: |
1436 | Coro::State::transfer = 1 |
2226 | CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel); |
1437 | Coro::schedule = 2 |
|
|
1438 | Coro::cede = 3 |
|
|
1439 | Coro::cede_notself = 4 |
|
|
1440 | CODE: |
|
|
1441 | { |
|
|
1442 | struct transfer_args ta; |
|
|
1443 | |
2227 | |
1444 | switch (ix) |
2228 | void |
1445 | { |
2229 | transfer (...) |
1446 | case 0: |
2230 | PROTOTYPE: $$ |
1447 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
2231 | CODE: |
1448 | ta.next = 0; |
2232 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1449 | break; |
|
|
1450 | |
|
|
1451 | case 1: |
|
|
1452 | if (items != 2) |
|
|
1453 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1454 | |
|
|
1455 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1456 | break; |
|
|
1457 | |
|
|
1458 | case 2: |
|
|
1459 | prepare_schedule (aTHX_ &ta); |
|
|
1460 | break; |
|
|
1461 | |
|
|
1462 | case 3: |
|
|
1463 | prepare_cede (aTHX_ &ta); |
|
|
1464 | break; |
|
|
1465 | |
|
|
1466 | case 4: |
|
|
1467 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1468 | XSRETURN_EMPTY; |
|
|
1469 | |
|
|
1470 | break; |
|
|
1471 | } |
|
|
1472 | |
|
|
1473 | BARRIER; |
|
|
1474 | TRANSFER (ta); |
|
|
1475 | |
|
|
1476 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
|
|
1477 | XSRETURN_YES; |
|
|
1478 | } |
|
|
1479 | |
2233 | |
1480 | bool |
2234 | bool |
1481 | _destroy (SV *coro_sv) |
2235 | _destroy (SV *coro_sv) |
1482 | CODE: |
2236 | CODE: |
1483 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2237 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1484 | OUTPUT: |
2238 | OUTPUT: |
1485 | RETVAL |
2239 | RETVAL |
1486 | |
2240 | |
1487 | void |
2241 | void |
1488 | _exit (code) |
2242 | _exit (int code) |
1489 | int code |
|
|
1490 | PROTOTYPE: $ |
2243 | PROTOTYPE: $ |
1491 | CODE: |
2244 | CODE: |
1492 | _exit (code); |
2245 | _exit (code); |
1493 | |
2246 | |
1494 | int |
2247 | int |
1495 | cctx_stacksize (int new_stacksize = 0) |
2248 | cctx_stacksize (int new_stacksize = 0) |
|
|
2249 | PROTOTYPE: ;$ |
1496 | CODE: |
2250 | CODE: |
1497 | RETVAL = coro_stacksize; |
2251 | RETVAL = cctx_stacksize; |
1498 | if (new_stacksize) |
2252 | if (new_stacksize) |
|
|
2253 | { |
1499 | coro_stacksize = new_stacksize; |
2254 | cctx_stacksize = new_stacksize; |
|
|
2255 | ++cctx_gen; |
|
|
2256 | } |
1500 | OUTPUT: |
2257 | OUTPUT: |
1501 | RETVAL |
2258 | RETVAL |
1502 | |
2259 | |
1503 | int |
2260 | int |
|
|
2261 | cctx_max_idle (int max_idle = 0) |
|
|
2262 | PROTOTYPE: ;$ |
|
|
2263 | CODE: |
|
|
2264 | RETVAL = cctx_max_idle; |
|
|
2265 | if (max_idle > 1) |
|
|
2266 | cctx_max_idle = max_idle; |
|
|
2267 | OUTPUT: |
|
|
2268 | RETVAL |
|
|
2269 | |
|
|
2270 | int |
1504 | cctx_count () |
2271 | cctx_count () |
|
|
2272 | PROTOTYPE: |
1505 | CODE: |
2273 | CODE: |
1506 | RETVAL = cctx_count; |
2274 | RETVAL = cctx_count; |
1507 | OUTPUT: |
2275 | OUTPUT: |
1508 | RETVAL |
2276 | RETVAL |
1509 | |
2277 | |
1510 | int |
2278 | int |
1511 | cctx_idle () |
2279 | cctx_idle () |
|
|
2280 | PROTOTYPE: |
1512 | CODE: |
2281 | CODE: |
1513 | RETVAL = cctx_idle; |
2282 | RETVAL = cctx_idle; |
1514 | OUTPUT: |
2283 | OUTPUT: |
1515 | RETVAL |
2284 | RETVAL |
1516 | |
2285 | |
1517 | void |
2286 | void |
1518 | list () |
2287 | list () |
|
|
2288 | PROTOTYPE: |
1519 | PPCODE: |
2289 | PPCODE: |
1520 | { |
2290 | { |
1521 | struct coro *coro; |
2291 | struct coro *coro; |
1522 | for (coro = coro_first; coro; coro = coro->next) |
2292 | for (coro = coro_first; coro; coro = coro->next) |
1523 | if (coro->hv) |
2293 | if (coro->hv) |
… | |
… | |
1528 | call (Coro::State coro, SV *coderef) |
2298 | call (Coro::State coro, SV *coderef) |
1529 | ALIAS: |
2299 | ALIAS: |
1530 | eval = 1 |
2300 | eval = 1 |
1531 | CODE: |
2301 | CODE: |
1532 | { |
2302 | { |
1533 | if (coro->mainstack) |
2303 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1534 | { |
2304 | { |
1535 | struct coro temp; |
2305 | struct coro temp; |
1536 | Zero (&temp, 1, struct coro); |
|
|
1537 | |
2306 | |
1538 | if (!(coro->flags & CF_RUNNING)) |
2307 | if (!(coro->flags & CF_RUNNING)) |
1539 | { |
2308 | { |
|
|
2309 | PUTBACK; |
1540 | save_perl (aTHX_ &temp); |
2310 | save_perl (aTHX_ &temp); |
1541 | load_perl (aTHX_ coro); |
2311 | load_perl (aTHX_ coro); |
1542 | } |
2312 | } |
1543 | |
2313 | |
1544 | { |
2314 | { |
1545 | dSP; |
2315 | dSP; |
1546 | ENTER; |
2316 | ENTER; |
1547 | SAVETMPS; |
2317 | SAVETMPS; |
|
|
2318 | PUTBACK; |
|
|
2319 | PUSHSTACK; |
1548 | PUSHMARK (SP); |
2320 | PUSHMARK (SP); |
1549 | PUTBACK; |
2321 | |
1550 | if (ix) |
2322 | if (ix) |
1551 | eval_sv (coderef, 0); |
2323 | eval_sv (coderef, 0); |
1552 | else |
2324 | else |
1553 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2325 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
2326 | |
|
|
2327 | POPSTACK; |
1554 | SPAGAIN; |
2328 | SPAGAIN; |
1555 | FREETMPS; |
2329 | FREETMPS; |
1556 | LEAVE; |
2330 | LEAVE; |
1557 | PUTBACK; |
2331 | PUTBACK; |
1558 | } |
2332 | } |
1559 | |
2333 | |
1560 | if (!(coro->flags & CF_RUNNING)) |
2334 | if (!(coro->flags & CF_RUNNING)) |
1561 | { |
2335 | { |
1562 | save_perl (aTHX_ coro); |
2336 | save_perl (aTHX_ coro); |
1563 | load_perl (aTHX_ &temp); |
2337 | load_perl (aTHX_ &temp); |
|
|
2338 | SPAGAIN; |
1564 | } |
2339 | } |
1565 | } |
2340 | } |
1566 | } |
2341 | } |
1567 | |
2342 | |
1568 | SV * |
2343 | SV * |
… | |
… | |
1577 | RETVAL = boolSV (coro->flags & ix); |
2352 | RETVAL = boolSV (coro->flags & ix); |
1578 | OUTPUT: |
2353 | OUTPUT: |
1579 | RETVAL |
2354 | RETVAL |
1580 | |
2355 | |
1581 | void |
2356 | void |
|
|
2357 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2358 | PROTOTYPE: $;$ |
|
|
2359 | CODE: |
|
|
2360 | SvREFCNT_dec (self->throw); |
|
|
2361 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2362 | |
|
|
2363 | void |
1582 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2364 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2365 | PROTOTYPE: $;$ |
|
|
2366 | C_ARGS: aTHX_ coro, flags |
1583 | |
2367 | |
1584 | SV * |
2368 | SV * |
1585 | has_stack (Coro::State coro) |
2369 | has_cctx (Coro::State coro) |
1586 | PROTOTYPE: $ |
2370 | PROTOTYPE: $ |
1587 | CODE: |
2371 | CODE: |
1588 | RETVAL = boolSV (!!coro->cctx); |
2372 | RETVAL = boolSV (!!coro->cctx); |
1589 | OUTPUT: |
2373 | OUTPUT: |
1590 | RETVAL |
2374 | RETVAL |
… | |
… | |
1595 | CODE: |
2379 | CODE: |
1596 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
2380 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1597 | OUTPUT: |
2381 | OUTPUT: |
1598 | RETVAL |
2382 | RETVAL |
1599 | |
2383 | |
1600 | IV |
2384 | UV |
1601 | rss (Coro::State coro) |
2385 | rss (Coro::State coro) |
1602 | PROTOTYPE: $ |
2386 | PROTOTYPE: $ |
1603 | ALIAS: |
2387 | ALIAS: |
1604 | usecount = 1 |
2388 | usecount = 1 |
1605 | CODE: |
2389 | CODE: |
… | |
… | |
1609 | case 1: RETVAL = coro->usecount; break; |
2393 | case 1: RETVAL = coro->usecount; break; |
1610 | } |
2394 | } |
1611 | OUTPUT: |
2395 | OUTPUT: |
1612 | RETVAL |
2396 | RETVAL |
1613 | |
2397 | |
|
|
2398 | void |
|
|
2399 | force_cctx () |
|
|
2400 | PROTOTYPE: |
|
|
2401 | CODE: |
|
|
2402 | SvSTATE_current->cctx->idle_sp = 0; |
|
|
2403 | |
|
|
2404 | void |
|
|
2405 | swap_defsv (Coro::State self) |
|
|
2406 | PROTOTYPE: $ |
|
|
2407 | ALIAS: |
|
|
2408 | swap_defav = 1 |
|
|
2409 | CODE: |
|
|
2410 | if (!self->slot) |
|
|
2411 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
2412 | else |
|
|
2413 | { |
|
|
2414 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
2415 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
2416 | |
|
|
2417 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
2418 | } |
1614 | |
2419 | |
1615 | MODULE = Coro::State PACKAGE = Coro |
2420 | MODULE = Coro::State PACKAGE = Coro |
1616 | |
2421 | |
1617 | BOOT: |
2422 | BOOT: |
1618 | { |
2423 | { |
1619 | int i; |
2424 | int i; |
1620 | |
2425 | |
1621 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1622 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1623 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
2426 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2427 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
2428 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
1624 | |
2429 | |
1625 | coro_current = get_sv ("Coro::current", FALSE); |
2430 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
1626 | SvREADONLY_on (coro_current); |
2431 | SvREADONLY_on (coro_current); |
1627 | |
2432 | |
1628 | coro_stash = gv_stashpv ("Coro", TRUE); |
2433 | coro_stash = gv_stashpv ("Coro", TRUE); |
1629 | |
2434 | |
1630 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2435 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1631 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2436 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1632 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
2437 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1633 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
2438 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
… | |
… | |
1636 | |
2441 | |
1637 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2442 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1638 | coro_ready[i] = newAV (); |
2443 | coro_ready[i] = newAV (); |
1639 | |
2444 | |
1640 | { |
2445 | { |
1641 | SV *sv = perl_get_sv("Coro::API", 1); |
2446 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1642 | |
2447 | |
1643 | coroapi.schedule = api_schedule; |
2448 | coroapi.schedule = api_schedule; |
1644 | coroapi.cede = api_cede; |
2449 | coroapi.cede = api_cede; |
1645 | coroapi.cede_notself = api_cede_notself; |
2450 | coroapi.cede_notself = api_cede_notself; |
1646 | coroapi.ready = api_ready; |
2451 | coroapi.ready = api_ready; |
1647 | coroapi.is_ready = api_is_ready; |
2452 | coroapi.is_ready = api_is_ready; |
1648 | coroapi.nready = &coro_nready; |
2453 | coroapi.nready = coro_nready; |
1649 | coroapi.current = coro_current; |
2454 | coroapi.current = coro_current; |
1650 | |
2455 | |
1651 | GCoroAPI = &coroapi; |
2456 | GCoroAPI = &coroapi; |
1652 | sv_setiv (sv, (IV)&coroapi); |
2457 | sv_setiv (sv, (IV)&coroapi); |
1653 | SvREADONLY_on (sv); |
2458 | SvREADONLY_on (sv); |
1654 | } |
2459 | } |
1655 | } |
2460 | } |
|
|
2461 | |
|
|
2462 | void |
|
|
2463 | schedule (...) |
|
|
2464 | CODE: |
|
|
2465 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
2466 | |
|
|
2467 | void |
|
|
2468 | cede (...) |
|
|
2469 | CODE: |
|
|
2470 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
2471 | |
|
|
2472 | void |
|
|
2473 | cede_notself (...) |
|
|
2474 | CODE: |
|
|
2475 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1656 | |
2476 | |
1657 | void |
2477 | void |
1658 | _set_current (SV *current) |
2478 | _set_current (SV *current) |
1659 | PROTOTYPE: $ |
2479 | PROTOTYPE: $ |
1660 | CODE: |
2480 | CODE: |
1661 | SvREFCNT_dec (SvRV (coro_current)); |
2481 | SvREFCNT_dec (SvRV (coro_current)); |
1662 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
2482 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
2483 | |
|
|
2484 | void |
|
|
2485 | _set_readyhook (SV *hook) |
|
|
2486 | PROTOTYPE: $ |
|
|
2487 | CODE: |
|
|
2488 | SvREFCNT_dec (coro_readyhook); |
|
|
2489 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
1663 | |
2490 | |
1664 | int |
2491 | int |
1665 | prio (Coro::State coro, int newprio = 0) |
2492 | prio (Coro::State coro, int newprio = 0) |
|
|
2493 | PROTOTYPE: $;$ |
1666 | ALIAS: |
2494 | ALIAS: |
1667 | nice = 1 |
2495 | nice = 1 |
1668 | CODE: |
2496 | CODE: |
1669 | { |
2497 | { |
1670 | RETVAL = coro->prio; |
2498 | RETVAL = coro->prio; |
… | |
… | |
1685 | |
2513 | |
1686 | SV * |
2514 | SV * |
1687 | ready (SV *self) |
2515 | ready (SV *self) |
1688 | PROTOTYPE: $ |
2516 | PROTOTYPE: $ |
1689 | CODE: |
2517 | CODE: |
1690 | RETVAL = boolSV (api_ready (self)); |
2518 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1691 | OUTPUT: |
2519 | OUTPUT: |
1692 | RETVAL |
2520 | RETVAL |
1693 | |
2521 | |
1694 | int |
2522 | int |
1695 | nready (...) |
2523 | nready (...) |
… | |
… | |
1702 | # for async_pool speedup |
2530 | # for async_pool speedup |
1703 | void |
2531 | void |
1704 | _pool_1 (SV *cb) |
2532 | _pool_1 (SV *cb) |
1705 | CODE: |
2533 | CODE: |
1706 | { |
2534 | { |
1707 | struct coro *coro = SvSTATE (coro_current); |
|
|
1708 | HV *hv = (HV *)SvRV (coro_current); |
2535 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2536 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
1709 | AV *defav = GvAV (PL_defgv); |
2537 | AV *defav = GvAV (PL_defgv); |
1710 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2538 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
1711 | AV *invoke_av; |
2539 | AV *invoke_av; |
1712 | int i, len; |
2540 | int i, len; |
1713 | |
2541 | |
1714 | if (!invoke) |
2542 | if (!invoke) |
|
|
2543 | { |
|
|
2544 | SV *old = PL_diehook; |
|
|
2545 | PL_diehook = 0; |
|
|
2546 | SvREFCNT_dec (old); |
1715 | croak ("\3terminate\2\n"); |
2547 | croak ("\3async_pool terminate\2\n"); |
|
|
2548 | } |
1716 | |
2549 | |
1717 | SvREFCNT_dec (coro->saved_deffh); |
2550 | SvREFCNT_dec (coro->saved_deffh); |
1718 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
2551 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
1719 | |
2552 | |
1720 | hv_store (hv, "desc", sizeof ("desc") - 1, |
2553 | hv_store (hv, "desc", sizeof ("desc") - 1, |
1721 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
2554 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
1722 | |
2555 | |
1723 | invoke_av = (AV *)SvRV (invoke); |
2556 | invoke_av = (AV *)SvRV (invoke); |
… | |
… | |
1727 | |
2560 | |
1728 | if (len > 0) |
2561 | if (len > 0) |
1729 | { |
2562 | { |
1730 | av_fill (defav, len - 1); |
2563 | av_fill (defav, len - 1); |
1731 | for (i = 0; i < len; ++i) |
2564 | for (i = 0; i < len; ++i) |
1732 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
2565 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
1733 | } |
2566 | } |
1734 | |
|
|
1735 | SvREFCNT_dec (invoke); |
|
|
1736 | } |
2567 | } |
1737 | |
2568 | |
1738 | void |
2569 | void |
1739 | _pool_2 (SV *cb) |
2570 | _pool_2 (SV *cb) |
1740 | CODE: |
2571 | CODE: |
1741 | { |
2572 | { |
1742 | struct coro *coro = SvSTATE (coro_current); |
2573 | struct coro *coro = SvSTATE_current; |
1743 | |
2574 | |
1744 | sv_setsv (cb, &PL_sv_undef); |
2575 | sv_setsv (cb, &PL_sv_undef); |
1745 | |
2576 | |
1746 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2577 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
1747 | coro->saved_deffh = 0; |
2578 | coro->saved_deffh = 0; |
1748 | |
2579 | |
1749 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
2580 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
1750 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
2581 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2582 | { |
|
|
2583 | SV *old = PL_diehook; |
|
|
2584 | PL_diehook = 0; |
|
|
2585 | SvREFCNT_dec (old); |
1751 | croak ("\3terminate\2\n"); |
2586 | croak ("\3async_pool terminate\2\n"); |
|
|
2587 | } |
1752 | |
2588 | |
1753 | av_clear (GvAV (PL_defgv)); |
2589 | av_clear (GvAV (PL_defgv)); |
1754 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
2590 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
1755 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2591 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
1756 | |
2592 | |
1757 | coro->prio = 0; |
2593 | coro->prio = 0; |
1758 | |
2594 | |
1759 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2595 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
1760 | api_trace (coro_current, 0); |
2596 | api_trace (aTHX_ coro_current, 0); |
1761 | |
2597 | |
1762 | av_push (av_async_pool, newSVsv (coro_current)); |
2598 | av_push (av_async_pool, newSVsv (coro_current)); |
1763 | } |
2599 | } |
1764 | |
2600 | |
1765 | |
2601 | |
1766 | MODULE = Coro::State PACKAGE = Coro::AIO |
2602 | MODULE = Coro::State PACKAGE = Coro::AIO |
1767 | |
2603 | |
1768 | SV * |
2604 | void |
1769 | _get_state () |
2605 | _get_state (SV *self) |
|
|
2606 | PROTOTYPE: $ |
1770 | CODE: |
2607 | PPCODE: |
1771 | { |
2608 | { |
1772 | struct io_state *data; |
2609 | AV *defav = GvAV (PL_defgv); |
1773 | |
2610 | AV *av = newAV (); |
|
|
2611 | int i; |
1774 | RETVAL = newSV (sizeof (struct io_state)); |
2612 | SV *data_sv = newSV (sizeof (struct io_state)); |
1775 | data = (struct io_state *)SvPVX (RETVAL); |
2613 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
1776 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
2614 | SvCUR_set (data_sv, sizeof (struct io_state)); |
1777 | SvPOK_only (RETVAL); |
2615 | SvPOK_only (data_sv); |
1778 | |
2616 | |
1779 | data->errorno = errno; |
2617 | data->errorno = errno; |
1780 | data->laststype = PL_laststype; |
2618 | data->laststype = PL_laststype; |
1781 | data->laststatval = PL_laststatval; |
2619 | data->laststatval = PL_laststatval; |
1782 | data->statcache = PL_statcache; |
2620 | data->statcache = PL_statcache; |
|
|
2621 | |
|
|
2622 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2623 | |
|
|
2624 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2625 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2626 | |
|
|
2627 | av_push (av, data_sv); |
|
|
2628 | |
|
|
2629 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2630 | |
|
|
2631 | api_ready (aTHX_ self); |
1783 | } |
2632 | } |
1784 | OUTPUT: |
|
|
1785 | RETVAL |
|
|
1786 | |
2633 | |
1787 | void |
2634 | void |
1788 | _set_state (char *data_) |
2635 | _set_state (SV *state) |
1789 | PROTOTYPE: $ |
2636 | PROTOTYPE: $ |
1790 | CODE: |
2637 | PPCODE: |
1791 | { |
2638 | { |
1792 | struct io_state *data = (void *)data_; |
2639 | AV *av = (AV *)SvRV (state); |
|
|
2640 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2641 | int i; |
1793 | |
2642 | |
1794 | errno = data->errorno; |
2643 | errno = data->errorno; |
1795 | PL_laststype = data->laststype; |
2644 | PL_laststype = data->laststype; |
1796 | PL_laststatval = data->laststatval; |
2645 | PL_laststatval = data->laststatval; |
1797 | PL_statcache = data->statcache; |
2646 | PL_statcache = data->statcache; |
1798 | } |
|
|
1799 | |
2647 | |
|
|
2648 | EXTEND (SP, AvFILLp (av)); |
|
|
2649 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2650 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2651 | } |
|
|
2652 | |
|
|
2653 | |
|
|
2654 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2655 | |
|
|
2656 | BOOT: |
|
|
2657 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2658 | |
|
|
2659 | void |
|
|
2660 | _schedule (...) |
|
|
2661 | CODE: |
|
|
2662 | { |
|
|
2663 | static int incede; |
|
|
2664 | |
|
|
2665 | api_cede_notself (aTHX); |
|
|
2666 | |
|
|
2667 | ++incede; |
|
|
2668 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2669 | ; |
|
|
2670 | |
|
|
2671 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2672 | if (coro_nready >= incede) |
|
|
2673 | { |
|
|
2674 | PUSHMARK (SP); |
|
|
2675 | PUTBACK; |
|
|
2676 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2677 | SPAGAIN; |
|
|
2678 | } |
|
|
2679 | |
|
|
2680 | --incede; |
|
|
2681 | } |
|
|
2682 | |
|
|
2683 | |
|
|
2684 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
2685 | |
|
|
2686 | BOOT: |
|
|
2687 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
2688 | |
|
|
2689 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
2690 | |
|
|
2691 | SV * |
|
|
2692 | new (SV *klass, SV *count_ = 0) |
|
|
2693 | CODE: |
|
|
2694 | { |
|
|
2695 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2696 | AV *av = newAV (); |
|
|
2697 | av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
|
|
2698 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
|
|
2699 | } |
|
|
2700 | OUTPUT: |
|
|
2701 | RETVAL |
|
|
2702 | |
|
|
2703 | SV * |
|
|
2704 | count (SV *self) |
|
|
2705 | CODE: |
|
|
2706 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
2707 | OUTPUT: |
|
|
2708 | RETVAL |
|
|
2709 | |
|
|
2710 | void |
|
|
2711 | up (SV *self, int adjust = 1) |
|
|
2712 | ALIAS: |
|
|
2713 | adjust = 1 |
|
|
2714 | CODE: |
|
|
2715 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
2716 | |
|
|
2717 | void |
|
|
2718 | down (SV *self) |
|
|
2719 | CODE: |
|
|
2720 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
2721 | |
|
|
2722 | void |
|
|
2723 | try (SV *self) |
|
|
2724 | PPCODE: |
|
|
2725 | { |
|
|
2726 | AV *av = (AV *)SvRV (self); |
|
|
2727 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2728 | IV count = SvIVX (count_sv); |
|
|
2729 | |
|
|
2730 | if (count > 0) |
|
|
2731 | { |
|
|
2732 | --count; |
|
|
2733 | SvIVX (count_sv) = count; |
|
|
2734 | XSRETURN_YES; |
|
|
2735 | } |
|
|
2736 | else |
|
|
2737 | XSRETURN_NO; |
|
|
2738 | } |
|
|
2739 | |
|
|
2740 | void |
|
|
2741 | waiters (SV *self) |
|
|
2742 | CODE: |
|
|
2743 | { |
|
|
2744 | AV *av = (AV *)SvRV (self); |
|
|
2745 | |
|
|
2746 | if (GIMME_V == G_SCALAR) |
|
|
2747 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
|
|
2748 | else |
|
|
2749 | { |
|
|
2750 | int i; |
|
|
2751 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
|
|
2752 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2753 | PUSHs (newSVsv (AvARRAY (av)[i])); |
|
|
2754 | } |
|
|
2755 | } |
|
|
2756 | |