… | |
… | |
4 | #define PERL_EXT |
4 | #define PERL_EXT |
5 | |
5 | |
6 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
7 | #include "perl.h" |
7 | #include "perl.h" |
8 | #include "XSUB.h" |
8 | #include "XSUB.h" |
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9 | #include "perliol.h" |
9 | |
10 | |
10 | #include "patchlevel.h" |
11 | #include "patchlevel.h" |
11 | |
12 | |
12 | #include <stdio.h> |
13 | #include <stdio.h> |
13 | #include <errno.h> |
14 | #include <errno.h> |
14 | #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 */ |
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22 | #else |
15 | #include <inttypes.h> /* portable stdint.h */ |
23 | # include <inttypes.h> /* most portable stdint.h */ |
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24 | #endif |
16 | |
25 | |
17 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
18 | # include <unistd.h> |
27 | # include <unistd.h> |
19 | # include <sys/mman.h> |
28 | # include <sys/mman.h> |
20 | # ifndef MAP_ANONYMOUS |
29 | # ifndef MAP_ANONYMOUS |
… | |
… | |
37 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
38 | #endif |
47 | #endif |
39 | |
48 | |
40 | #if CORO_USE_VALGRIND |
49 | #if CORO_USE_VALGRIND |
41 | # include <valgrind/valgrind.h> |
50 | # include <valgrind/valgrind.h> |
42 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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43 | #else |
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44 | # define REGISTER_STACK(cctx,start,end) |
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45 | #endif |
51 | #endif |
46 | |
52 | |
47 | /* the maximum number of idle cctx that will be pooled */ |
53 | /* the maximum number of idle cctx that will be pooled */ |
48 | #define MAX_IDLE_CCTX 8 |
54 | static int cctx_max_idle = 4; |
49 | |
55 | |
50 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
51 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
52 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
53 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
54 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
60 | || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c))))) |
55 | |
61 | |
56 | #if !PERL_VERSION_ATLEAST (5,6,0) |
62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
57 | # ifndef PL_ppaddr |
63 | # ifndef PL_ppaddr |
58 | # define PL_ppaddr ppaddr |
64 | # define PL_ppaddr ppaddr |
59 | # endif |
65 | # endif |
… | |
… | |
72 | # ifndef IS_PADCONST |
78 | # ifndef IS_PADCONST |
73 | # define IS_PADCONST(v) 0 |
79 | # define IS_PADCONST(v) 0 |
74 | # endif |
80 | # endif |
75 | #endif |
81 | #endif |
76 | |
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 | |
77 | /* 5.8.8 */ |
93 | /* 5.8.8 */ |
78 | #ifndef GV_NOTQUAL |
94 | #ifndef GV_NOTQUAL |
79 | # define GV_NOTQUAL 0 |
95 | # define GV_NOTQUAL 0 |
80 | #endif |
96 | #endif |
81 | #ifndef newSV |
97 | #ifndef newSV |
82 | # define newSV(l) NEWSV(0,l) |
98 | # define newSV(l) NEWSV(0,l) |
83 | #endif |
99 | #endif |
84 | |
100 | #ifndef CvISXSUB_on |
85 | /* 5.11 */ |
101 | # define CvISXSUB_on(cv) (void)cv |
86 | #ifndef CxHASARGS |
102 | #endif |
87 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
103 | #ifndef CvISXSUB |
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104 | # define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE) |
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105 | #endif |
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106 | #ifndef Newx |
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107 | # define Newx(ptr,nitems,type) New (0,ptr,nitems,type) |
88 | #endif |
108 | #endif |
89 | |
109 | |
90 | /* 5.8.7 */ |
110 | /* 5.8.7 */ |
91 | #ifndef SvRV_set |
111 | #ifndef SvRV_set |
92 | # define SvRV_set(s,v) SvRV(s) = (v) |
112 | # define SvRV_set(s,v) SvRV(s) = (v) |
… | |
… | |
105 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
125 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
106 | #endif |
126 | #endif |
107 | |
127 | |
108 | /* The next macros try to return the current stack pointer, in an as |
128 | /* The next macros try to return the current stack pointer, in an as |
109 | * portable way as possible. */ |
129 | * portable way as possible. */ |
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130 | #if __GNUC__ >= 4 |
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131 | # define dSTACKLEVEL int stacklevel_dummy |
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132 | # define STACKLEVEL __builtin_frame_address (0) |
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133 | #else |
110 | #define dSTACKLEVEL volatile char stacklevel |
134 | # define dSTACKLEVEL volatile void *stacklevel |
111 | #define STACKLEVEL ((void *)&stacklevel) |
135 | # define STACKLEVEL ((void *)&stacklevel) |
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136 | #endif |
112 | |
137 | |
113 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
138 | #define IN_DESTRUCT PL_dirty |
114 | |
139 | |
115 | #if __GNUC__ >= 3 |
140 | #if __GNUC__ >= 3 |
116 | # define attribute(x) __attribute__(x) |
141 | # define attribute(x) __attribute__(x) |
117 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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118 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
142 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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143 | # define INLINE static inline |
119 | #else |
144 | #else |
120 | # define attribute(x) |
145 | # define attribute(x) |
121 | # define BARRIER |
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122 | # define expect(expr,value) (expr) |
146 | # define expect(expr,value) (expr) |
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147 | # define INLINE static |
123 | #endif |
148 | #endif |
124 | |
149 | |
125 | #define expect_false(expr) expect ((expr) != 0, 0) |
150 | #define expect_false(expr) expect ((expr) != 0, 0) |
126 | #define expect_true(expr) expect ((expr) != 0, 1) |
151 | #define expect_true(expr) expect ((expr) != 0, 1) |
127 | |
152 | |
128 | #define NOINLINE attribute ((noinline)) |
153 | #define NOINLINE attribute ((noinline)) |
129 | |
154 | |
130 | #include "CoroAPI.h" |
155 | #include "CoroAPI.h" |
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156 | #define GCoroAPI (&coroapi) /* very sneaky */ |
131 | |
157 | |
132 | #ifdef USE_ITHREADS |
158 | #ifdef USE_ITHREADS |
133 | static perl_mutex coro_mutex; |
159 | # if CORO_PTHREAD |
134 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
160 | static void *coro_thx; |
135 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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136 | #else |
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137 | # define LOCK (void)0 |
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138 | # define UNLOCK (void)0 |
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139 | #endif |
161 | # endif |
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162 | #endif |
140 | |
163 | |
141 | /* helper storage struct for Coro::AIO */ |
164 | static double (*nvtime)(); /* so why doesn't it take void? */ |
142 | struct io_state |
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143 | { |
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144 | int errorno; |
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145 | I32 laststype; |
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146 | int laststatval; |
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147 | Stat_t statcache; |
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148 | }; |
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149 | |
165 | |
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166 | /* we hijack an hopefully unused CV flag for our purposes */ |
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167 | #define CVf_SLF 0x4000 |
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168 | static OP *pp_slf (pTHX); |
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169 | |
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170 | static U32 cctx_gen; |
150 | static size_t coro_stacksize = CORO_STACKSIZE; |
171 | static size_t cctx_stacksize = CORO_STACKSIZE; |
151 | static struct CoroAPI coroapi; |
172 | static struct CoroAPI coroapi; |
152 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
173 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
153 | static JMPENV *main_top_env; |
174 | static JMPENV *main_top_env; |
154 | static HV *coro_state_stash, *coro_stash; |
175 | static HV *coro_state_stash, *coro_stash; |
155 | static volatile SV *coro_mortal; /* will be freed after next transfer */ |
176 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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177 | |
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178 | static AV *av_destroy; /* destruction queue */ |
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179 | static SV *sv_manager; /* the manager coro */ |
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180 | static SV *sv_idle; /* $Coro::idle */ |
156 | |
181 | |
157 | static GV *irsgv; /* $/ */ |
182 | static GV *irsgv; /* $/ */ |
158 | static GV *stdoutgv; /* *STDOUT */ |
183 | static GV *stdoutgv; /* *STDOUT */ |
159 | static SV *rv_diehook; |
184 | static SV *rv_diehook; |
160 | static SV *rv_warnhook; |
185 | static SV *rv_warnhook; |
161 | static HV *hv_sig; /* %SIG */ |
186 | static HV *hv_sig; /* %SIG */ |
162 | |
187 | |
163 | /* async_pool helper stuff */ |
188 | /* async_pool helper stuff */ |
164 | static SV *sv_pool_rss; |
189 | static SV *sv_pool_rss; |
165 | static SV *sv_pool_size; |
190 | static SV *sv_pool_size; |
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191 | static SV *sv_async_pool_idle; /* description string */ |
166 | static AV *av_async_pool; |
192 | static AV *av_async_pool; /* idle pool */ |
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193 | static SV *sv_Coro; /* class string */ |
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194 | static CV *cv_pool_handler; |
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195 | static CV *cv_coro_state_new; |
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196 | |
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197 | /* Coro::AnyEvent */ |
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198 | static SV *sv_activity; |
167 | |
199 | |
168 | static struct coro_cctx *cctx_first; |
200 | static struct coro_cctx *cctx_first; |
169 | static int cctx_count, cctx_idle; |
201 | static int cctx_count, cctx_idle; |
170 | |
202 | |
171 | enum { |
203 | enum { |
… | |
… | |
176 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
208 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
177 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
209 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
178 | }; |
210 | }; |
179 | |
211 | |
180 | /* this is a structure representing a c-level coroutine */ |
212 | /* this is a structure representing a c-level coroutine */ |
181 | typedef struct coro_cctx { |
213 | typedef struct coro_cctx |
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214 | { |
182 | struct coro_cctx *next; |
215 | struct coro_cctx *next; |
183 | |
216 | |
184 | /* the stack */ |
217 | /* the stack */ |
185 | void *sptr; |
218 | void *sptr; |
186 | size_t ssize; |
219 | size_t ssize; |
… | |
… | |
189 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
222 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
190 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
223 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
191 | JMPENV *top_env; |
224 | JMPENV *top_env; |
192 | coro_context cctx; |
225 | coro_context cctx; |
193 | |
226 | |
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227 | U32 gen; |
194 | #if CORO_USE_VALGRIND |
228 | #if CORO_USE_VALGRIND |
195 | int valgrind_id; |
229 | int valgrind_id; |
196 | #endif |
230 | #endif |
197 | unsigned char flags; |
231 | unsigned char flags; |
198 | } coro_cctx; |
232 | } coro_cctx; |
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233 | |
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234 | coro_cctx *cctx_current; /* the currently running cctx */ |
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235 | |
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236 | /*****************************************************************************/ |
199 | |
237 | |
200 | enum { |
238 | enum { |
201 | CF_RUNNING = 0x0001, /* coroutine is running */ |
239 | CF_RUNNING = 0x0001, /* coroutine is running */ |
202 | CF_READY = 0x0002, /* coroutine is ready */ |
240 | CF_READY = 0x0002, /* coroutine is ready */ |
203 | CF_NEW = 0x0004, /* has never been switched to */ |
241 | CF_NEW = 0x0004, /* has never been switched to */ |
204 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
242 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
205 | }; |
243 | }; |
206 | |
244 | |
207 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
245 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
208 | typedef struct { |
246 | typedef struct |
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247 | { |
209 | SV *defsv; |
248 | SV *defsv; |
210 | AV *defav; |
249 | AV *defav; |
211 | SV *errsv; |
250 | SV *errsv; |
212 | SV *irsgv; |
251 | SV *irsgv; |
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252 | HV *hinthv; |
213 | #define VAR(name,type) type name; |
253 | #define VAR(name,type) type name; |
214 | # include "state.h" |
254 | # include "state.h" |
215 | #undef VAR |
255 | #undef VAR |
216 | } perl_slots; |
256 | } perl_slots; |
217 | |
257 | |
218 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
258 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
219 | |
259 | |
220 | /* this is a structure representing a perl-level coroutine */ |
260 | /* this is a structure representing a perl-level coroutine */ |
221 | struct coro { |
261 | struct coro { |
222 | /* the c coroutine allocated to this perl coroutine, if any */ |
262 | /* the C coroutine allocated to this perl coroutine, if any */ |
223 | coro_cctx *cctx; |
263 | coro_cctx *cctx; |
224 | |
264 | |
225 | /* process data */ |
265 | /* state data */ |
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266 | struct CoroSLF slf_frame; /* saved slf frame */ |
226 | AV *mainstack; |
267 | AV *mainstack; |
227 | perl_slots *slot; /* basically the saved sp */ |
268 | perl_slots *slot; /* basically the saved sp */ |
228 | |
269 | |
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270 | CV *startcv; /* the CV to execute */ |
229 | AV *args; /* data associated with this coroutine (initial args) */ |
271 | AV *args; /* data associated with this coroutine (initial args) */ |
230 | int refcnt; /* coroutines are refcounted, yes */ |
272 | int refcnt; /* coroutines are refcounted, yes */ |
231 | int flags; /* CF_ flags */ |
273 | int flags; /* CF_ flags */ |
232 | HV *hv; /* the perl hash associated with this coro, if any */ |
274 | HV *hv; /* the perl hash associated with this coro, if any */ |
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275 | void (*on_destroy)(pTHX_ struct coro *coro); |
233 | |
276 | |
234 | /* statistics */ |
277 | /* statistics */ |
235 | int usecount; /* number of transfers to this coro */ |
278 | int usecount; /* number of transfers to this coro */ |
236 | |
279 | |
237 | /* coro process data */ |
280 | /* coro process data */ |
238 | int prio; |
281 | int prio; |
239 | SV *throw; /* exception to be thrown */ |
282 | SV *except; /* exception to be thrown */ |
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283 | SV *rouse_cb; |
240 | |
284 | |
241 | /* async_pool */ |
285 | /* async_pool */ |
242 | SV *saved_deffh; |
286 | SV *saved_deffh; |
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287 | SV *invoke_cb; |
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288 | AV *invoke_av; |
243 | |
289 | |
244 | /* linked list */ |
290 | /* linked list */ |
245 | struct coro *next, *prev; |
291 | struct coro *next, *prev; |
246 | }; |
292 | }; |
247 | |
293 | |
248 | typedef struct coro *Coro__State; |
294 | typedef struct coro *Coro__State; |
249 | typedef struct coro *Coro__State_or_hashref; |
295 | typedef struct coro *Coro__State_or_hashref; |
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296 | |
|
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297 | /* the following variables are effectively part of the perl context */ |
|
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298 | /* and get copied between struct coro and these variables */ |
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299 | /* the mainr easonw e don't support windows process emulation */ |
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300 | static struct CoroSLF slf_frame; /* the current slf frame */ |
250 | |
301 | |
251 | /** Coro ********************************************************************/ |
302 | /** Coro ********************************************************************/ |
252 | |
303 | |
253 | #define PRIO_MAX 3 |
304 | #define PRIO_MAX 3 |
254 | #define PRIO_HIGH 1 |
305 | #define PRIO_HIGH 1 |
… | |
… | |
257 | #define PRIO_IDLE -3 |
308 | #define PRIO_IDLE -3 |
258 | #define PRIO_MIN -4 |
309 | #define PRIO_MIN -4 |
259 | |
310 | |
260 | /* for Coro.pm */ |
311 | /* for Coro.pm */ |
261 | static SV *coro_current; |
312 | static SV *coro_current; |
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313 | static SV *coro_readyhook; |
262 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
314 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
263 | static int coro_nready; |
315 | static CV *cv_coro_run, *cv_coro_terminate; |
264 | static struct coro *coro_first; |
316 | static struct coro *coro_first; |
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317 | #define coro_nready coroapi.nready |
265 | |
318 | |
266 | /** lowlevel stuff **********************************************************/ |
319 | /** lowlevel stuff **********************************************************/ |
267 | |
320 | |
268 | static SV * |
321 | static SV * |
269 | coro_get_sv (pTHX_ const char *name, int create) |
322 | coro_get_sv (pTHX_ const char *name, int create) |
… | |
… | |
293 | get_hv (name, create); |
346 | get_hv (name, create); |
294 | #endif |
347 | #endif |
295 | return get_hv (name, create); |
348 | return get_hv (name, create); |
296 | } |
349 | } |
297 | |
350 | |
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351 | /* may croak */ |
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352 | INLINE CV * |
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353 | coro_sv_2cv (pTHX_ SV *sv) |
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354 | { |
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355 | HV *st; |
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356 | GV *gvp; |
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357 | return sv_2cv (sv, &st, &gvp, 0); |
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358 | } |
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359 | |
|
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360 | /*****************************************************************************/ |
|
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361 | /* magic glue */ |
|
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362 | |
|
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363 | #define CORO_MAGIC_type_cv 26 |
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364 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
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365 | |
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366 | #define CORO_MAGIC_NN(sv, type) \ |
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367 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
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368 | ? SvMAGIC (sv) \ |
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369 | : mg_find (sv, type)) |
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370 | |
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371 | #define CORO_MAGIC(sv, type) \ |
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372 | (expect_true (SvMAGIC (sv)) \ |
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373 | ? CORO_MAGIC_NN (sv, type) \ |
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374 | : 0) |
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375 | |
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376 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
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377 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
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378 | |
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379 | INLINE struct coro * |
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380 | SvSTATE_ (pTHX_ SV *coro) |
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381 | { |
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382 | HV *stash; |
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383 | MAGIC *mg; |
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384 | |
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385 | if (SvROK (coro)) |
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386 | coro = SvRV (coro); |
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387 | |
|
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388 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
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389 | croak ("Coro::State object required"); |
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390 | |
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391 | stash = SvSTASH (coro); |
|
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392 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
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393 | { |
|
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394 | /* very slow, but rare, check */ |
|
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395 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
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396 | croak ("Coro::State object required"); |
|
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397 | } |
|
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398 | |
|
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399 | mg = CORO_MAGIC_state (coro); |
|
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400 | return (struct coro *)mg->mg_ptr; |
|
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401 | } |
|
|
402 | |
|
|
403 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
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404 | |
|
|
405 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
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406 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
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407 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
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408 | |
|
|
409 | /*****************************************************************************/ |
|
|
410 | /* padlist management and caching */ |
|
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411 | |
298 | static AV * |
412 | static AV * |
299 | coro_clone_padlist (pTHX_ CV *cv) |
413 | coro_derive_padlist (pTHX_ CV *cv) |
300 | { |
414 | { |
301 | AV *padlist = CvPADLIST (cv); |
415 | AV *padlist = CvPADLIST (cv); |
302 | AV *newpadlist, *newpad; |
416 | AV *newpadlist, *newpad; |
303 | |
417 | |
304 | newpadlist = newAV (); |
418 | newpadlist = newAV (); |
… | |
… | |
309 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
423 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
310 | #endif |
424 | #endif |
311 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
425 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
312 | --AvFILLp (padlist); |
426 | --AvFILLp (padlist); |
313 | |
427 | |
314 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
428 | av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); |
315 | av_store (newpadlist, 1, (SV *)newpad); |
429 | av_store (newpadlist, 1, (SV *)newpad); |
316 | |
430 | |
317 | return newpadlist; |
431 | return newpadlist; |
318 | } |
432 | } |
319 | |
433 | |
320 | static void |
434 | static void |
321 | free_padlist (pTHX_ AV *padlist) |
435 | free_padlist (pTHX_ AV *padlist) |
322 | { |
436 | { |
323 | /* may be during global destruction */ |
437 | /* may be during global destruction */ |
324 | if (SvREFCNT (padlist)) |
438 | if (!IN_DESTRUCT) |
325 | { |
439 | { |
326 | I32 i = AvFILLp (padlist); |
440 | I32 i = AvFILLp (padlist); |
327 | while (i >= 0) |
441 | |
|
|
442 | while (i > 0) /* special-case index 0 */ |
328 | { |
443 | { |
329 | SV **svp = av_fetch (padlist, i--, FALSE); |
444 | /* we try to be extra-careful here */ |
330 | if (svp) |
445 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
331 | { |
446 | I32 j = AvFILLp (av); |
332 | SV *sv; |
447 | |
333 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
448 | while (j >= 0) |
|
|
449 | SvREFCNT_dec (AvARRAY (av)[j--]); |
|
|
450 | |
|
|
451 | AvFILLp (av) = -1; |
334 | SvREFCNT_dec (sv); |
452 | SvREFCNT_dec (av); |
335 | |
|
|
336 | SvREFCNT_dec (*svp); |
|
|
337 | } |
|
|
338 | } |
453 | } |
339 | |
454 | |
|
|
455 | SvREFCNT_dec (AvARRAY (padlist)[0]); |
|
|
456 | |
|
|
457 | AvFILLp (padlist) = -1; |
340 | SvREFCNT_dec ((SV*)padlist); |
458 | SvREFCNT_dec ((SV*)padlist); |
341 | } |
459 | } |
342 | } |
460 | } |
343 | |
461 | |
344 | static int |
462 | static int |
… | |
… | |
349 | |
467 | |
350 | /* casting is fun. */ |
468 | /* casting is fun. */ |
351 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
469 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
352 | free_padlist (aTHX_ padlist); |
470 | free_padlist (aTHX_ padlist); |
353 | |
471 | |
|
|
472 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
|
|
473 | |
354 | return 0; |
474 | return 0; |
355 | } |
475 | } |
356 | |
|
|
357 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
|
|
358 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
359 | |
476 | |
360 | static MGVTBL coro_cv_vtbl = { |
477 | static MGVTBL coro_cv_vtbl = { |
361 | 0, 0, 0, 0, |
478 | 0, 0, 0, 0, |
362 | coro_cv_free |
479 | coro_cv_free |
363 | }; |
480 | }; |
364 | |
|
|
365 | #define CORO_MAGIC(sv,type) \ |
|
|
366 | SvMAGIC (sv) \ |
|
|
367 | ? SvMAGIC (sv)->mg_type == type \ |
|
|
368 | ? SvMAGIC (sv) \ |
|
|
369 | : mg_find (sv, type) \ |
|
|
370 | : 0 |
|
|
371 | |
|
|
372 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
373 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
374 | |
|
|
375 | static struct coro * |
|
|
376 | SvSTATE_ (pTHX_ SV *coro) |
|
|
377 | { |
|
|
378 | HV *stash; |
|
|
379 | MAGIC *mg; |
|
|
380 | |
|
|
381 | if (SvROK (coro)) |
|
|
382 | coro = SvRV (coro); |
|
|
383 | |
|
|
384 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
385 | croak ("Coro::State object required"); |
|
|
386 | |
|
|
387 | stash = SvSTASH (coro); |
|
|
388 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
389 | { |
|
|
390 | /* very slow, but rare, check */ |
|
|
391 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
392 | croak ("Coro::State object required"); |
|
|
393 | } |
|
|
394 | |
|
|
395 | mg = CORO_MAGIC_state (coro); |
|
|
396 | return (struct coro *)mg->mg_ptr; |
|
|
397 | } |
|
|
398 | |
|
|
399 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
400 | |
481 | |
401 | /* the next two functions merely cache the padlists */ |
482 | /* the next two functions merely cache the padlists */ |
402 | static void |
483 | static void |
403 | get_padlist (pTHX_ CV *cv) |
484 | get_padlist (pTHX_ CV *cv) |
404 | { |
485 | { |
… | |
… | |
408 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
489 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
409 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
490 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
410 | else |
491 | else |
411 | { |
492 | { |
412 | #if CORO_PREFER_PERL_FUNCTIONS |
493 | #if CORO_PREFER_PERL_FUNCTIONS |
413 | /* this is probably cleaner, but also slower? */ |
494 | /* this is probably cleaner? but also slower! */ |
|
|
495 | /* in practise, it seems to be less stable */ |
414 | CV *cp = Perl_cv_clone (cv); |
496 | CV *cp = Perl_cv_clone (aTHX_ cv); |
415 | CvPADLIST (cv) = CvPADLIST (cp); |
497 | CvPADLIST (cv) = CvPADLIST (cp); |
416 | CvPADLIST (cp) = 0; |
498 | CvPADLIST (cp) = 0; |
417 | SvREFCNT_dec (cp); |
499 | SvREFCNT_dec (cp); |
418 | #else |
500 | #else |
419 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
501 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
420 | #endif |
502 | #endif |
421 | } |
503 | } |
422 | } |
504 | } |
423 | |
505 | |
424 | static void |
506 | static void |
… | |
… | |
431 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
513 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
432 | |
514 | |
433 | av = (AV *)mg->mg_obj; |
515 | av = (AV *)mg->mg_obj; |
434 | |
516 | |
435 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
517 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
436 | av_extend (av, AvMAX (av) + 1); |
518 | av_extend (av, AvFILLp (av) + 1); |
437 | |
519 | |
438 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
520 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
439 | } |
521 | } |
440 | |
522 | |
441 | /** load & save, init *******************************************************/ |
523 | /** load & save, init *******************************************************/ |
… | |
… | |
446 | perl_slots *slot = c->slot; |
528 | perl_slots *slot = c->slot; |
447 | c->slot = 0; |
529 | c->slot = 0; |
448 | |
530 | |
449 | PL_mainstack = c->mainstack; |
531 | PL_mainstack = c->mainstack; |
450 | |
532 | |
451 | GvSV (PL_defgv) = slot->defsv; |
533 | GvSV (PL_defgv) = slot->defsv; |
452 | GvAV (PL_defgv) = slot->defav; |
534 | GvAV (PL_defgv) = slot->defav; |
453 | GvSV (PL_errgv) = slot->errsv; |
535 | GvSV (PL_errgv) = slot->errsv; |
454 | GvSV (irsgv) = slot->irsgv; |
536 | GvSV (irsgv) = slot->irsgv; |
|
|
537 | GvHV (PL_hintgv) = slot->hinthv; |
455 | |
538 | |
456 | #define VAR(name,type) PL_ ## name = slot->name; |
539 | #define VAR(name,type) PL_ ## name = slot->name; |
457 | # include "state.h" |
540 | # include "state.h" |
458 | #undef VAR |
541 | #undef VAR |
459 | |
542 | |
… | |
… | |
470 | CvPADLIST (cv) = (AV *)POPs; |
553 | CvPADLIST (cv) = (AV *)POPs; |
471 | } |
554 | } |
472 | |
555 | |
473 | PUTBACK; |
556 | PUTBACK; |
474 | } |
557 | } |
|
|
558 | |
|
|
559 | slf_frame = c->slf_frame; |
|
|
560 | CORO_THROW = c->except; |
475 | } |
561 | } |
476 | |
562 | |
477 | static void |
563 | static void |
478 | save_perl (pTHX_ Coro__State c) |
564 | save_perl (pTHX_ Coro__State c) |
479 | { |
565 | { |
|
|
566 | c->except = CORO_THROW; |
|
|
567 | c->slf_frame = slf_frame; |
|
|
568 | |
480 | { |
569 | { |
481 | dSP; |
570 | dSP; |
482 | I32 cxix = cxstack_ix; |
571 | I32 cxix = cxstack_ix; |
483 | PERL_CONTEXT *ccstk = cxstack; |
572 | PERL_CONTEXT *ccstk = cxstack; |
484 | PERL_SI *top_si = PL_curstackinfo; |
573 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
502 | |
591 | |
503 | if (expect_true (CvDEPTH (cv))) |
592 | if (expect_true (CvDEPTH (cv))) |
504 | { |
593 | { |
505 | EXTEND (SP, 3); |
594 | EXTEND (SP, 3); |
506 | PUSHs ((SV *)CvPADLIST (cv)); |
595 | PUSHs ((SV *)CvPADLIST (cv)); |
507 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
596 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
508 | PUSHs ((SV *)cv); |
597 | PUSHs ((SV *)cv); |
509 | |
598 | |
510 | CvDEPTH (cv) = 0; |
599 | CvDEPTH (cv) = 0; |
511 | get_padlist (aTHX_ cv); |
600 | get_padlist (aTHX_ cv); |
512 | } |
601 | } |
… | |
… | |
539 | c->mainstack = PL_mainstack; |
628 | c->mainstack = PL_mainstack; |
540 | |
629 | |
541 | { |
630 | { |
542 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
631 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
543 | |
632 | |
544 | slot->defav = GvAV (PL_defgv); |
633 | slot->defav = GvAV (PL_defgv); |
545 | slot->defsv = DEFSV; |
634 | slot->defsv = DEFSV; |
546 | slot->errsv = ERRSV; |
635 | slot->errsv = ERRSV; |
547 | slot->irsgv = GvSV (irsgv); |
636 | slot->irsgv = GvSV (irsgv); |
|
|
637 | slot->hinthv = GvHV (PL_hintgv); |
548 | |
638 | |
549 | #define VAR(name,type) slot->name = PL_ ## name; |
639 | #define VAR(name,type) slot->name = PL_ ## name; |
550 | # include "state.h" |
640 | # include "state.h" |
551 | #undef VAR |
641 | #undef VAR |
552 | } |
642 | } |
553 | } |
643 | } |
554 | |
644 | |
555 | /* |
645 | /* |
556 | * allocate various perl stacks. This is an exact copy |
646 | * allocate various perl stacks. This is almost an exact copy |
557 | * of perl.c:init_stacks, except that it uses less memory |
647 | * of perl.c:init_stacks, except that it uses less memory |
558 | * on the (sometimes correct) assumption that coroutines do |
648 | * on the (sometimes correct) assumption that coroutines do |
559 | * not usually need a lot of stackspace. |
649 | * not usually need a lot of stackspace. |
560 | */ |
650 | */ |
561 | #if CORO_PREFER_PERL_FUNCTIONS |
651 | #if CORO_PREFER_PERL_FUNCTIONS |
562 | # define coro_init_stacks init_stacks |
652 | # define coro_init_stacks(thx) init_stacks () |
563 | #else |
653 | #else |
564 | static void |
654 | static void |
565 | coro_init_stacks (pTHX) |
655 | coro_init_stacks (pTHX) |
566 | { |
656 | { |
567 | PL_curstackinfo = new_stackinfo(32, 8); |
657 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
604 | |
694 | |
605 | /* |
695 | /* |
606 | * destroy the stacks, the callchain etc... |
696 | * destroy the stacks, the callchain etc... |
607 | */ |
697 | */ |
608 | static void |
698 | static void |
609 | coro_destroy_stacks (pTHX) |
699 | coro_destruct_stacks (pTHX) |
610 | { |
700 | { |
611 | while (PL_curstackinfo->si_next) |
701 | while (PL_curstackinfo->si_next) |
612 | PL_curstackinfo = PL_curstackinfo->si_next; |
702 | PL_curstackinfo = PL_curstackinfo->si_next; |
613 | |
703 | |
614 | while (PL_curstackinfo) |
704 | while (PL_curstackinfo) |
… | |
… | |
630 | #if !PERL_VERSION_ATLEAST (5,10,0) |
720 | #if !PERL_VERSION_ATLEAST (5,10,0) |
631 | Safefree (PL_retstack); |
721 | Safefree (PL_retstack); |
632 | #endif |
722 | #endif |
633 | } |
723 | } |
634 | |
724 | |
|
|
725 | #define CORO_RSS \ |
|
|
726 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
727 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
728 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
729 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
730 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
731 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
732 | rss += SYM (savestack_max) * sizeof (ANY); |
|
|
733 | |
635 | static size_t |
734 | static size_t |
636 | coro_rss (pTHX_ struct coro *coro) |
735 | coro_rss (pTHX_ struct coro *coro) |
637 | { |
736 | { |
638 | size_t rss = sizeof (*coro); |
737 | size_t rss = sizeof (*coro); |
639 | |
738 | |
640 | if (coro->mainstack) |
739 | if (coro->mainstack) |
641 | { |
740 | { |
642 | perl_slots tmp_slot; |
|
|
643 | perl_slots *slot; |
|
|
644 | |
|
|
645 | if (coro->flags & CF_RUNNING) |
741 | if (coro->flags & CF_RUNNING) |
646 | { |
742 | { |
647 | slot = &tmp_slot; |
743 | #define SYM(sym) PL_ ## sym |
648 | |
744 | CORO_RSS; |
649 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
650 | # include "state.h" |
|
|
651 | #undef VAR |
745 | #undef SYM |
652 | } |
746 | } |
653 | else |
747 | else |
654 | slot = coro->slot; |
748 | { |
655 | |
749 | #define SYM(sym) coro->slot->sym |
656 | rss += sizeof (slot->curstackinfo); |
750 | CORO_RSS; |
657 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
751 | #undef SYM |
658 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
752 | } |
659 | rss += slot->tmps_max * sizeof (SV *); |
|
|
660 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
661 | rss += slot->scopestack_max * sizeof (I32); |
|
|
662 | rss += slot->savestack_max * sizeof (ANY); |
|
|
663 | |
|
|
664 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
665 | rss += slot->retstack_max * sizeof (OP *); |
|
|
666 | #endif |
|
|
667 | } |
753 | } |
668 | |
754 | |
669 | return rss; |
755 | return rss; |
670 | } |
756 | } |
671 | |
757 | |
672 | /** coroutine stack handling ************************************************/ |
758 | /** coroutine stack handling ************************************************/ |
673 | |
759 | |
674 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
760 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
675 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
761 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
762 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
763 | |
|
|
764 | /* apparently < 5.8.8 */ |
|
|
765 | #ifndef MgPV_nolen_const |
|
|
766 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
767 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
768 | (const char*)(mg)->mg_ptr) |
|
|
769 | #endif |
676 | |
770 | |
677 | /* |
771 | /* |
678 | * This overrides the default magic get method of %SIG elements. |
772 | * This overrides the default magic get method of %SIG elements. |
679 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
773 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
680 | * and instead of tryign to save and restore the hash elements, we just provide |
774 | * and instead of tryign to save and restore the hash elements, we just provide |
… | |
… | |
688 | { |
782 | { |
689 | const char *s = MgPV_nolen_const (mg); |
783 | const char *s = MgPV_nolen_const (mg); |
690 | |
784 | |
691 | if (*s == '_') |
785 | if (*s == '_') |
692 | { |
786 | { |
693 | if (strEQ (s, "__DIE__" ) && PL_diehook ) return sv_setsv (sv, PL_diehook ), 0; |
787 | SV **svp = 0; |
694 | if (strEQ (s, "__WARN__") && PL_warnhook) return sv_setsv (sv, PL_warnhook), 0; |
788 | |
|
|
789 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
790 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
791 | |
|
|
792 | if (svp) |
|
|
793 | { |
|
|
794 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
795 | return 0; |
|
|
796 | } |
695 | } |
797 | } |
696 | |
798 | |
697 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
799 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
800 | } |
|
|
801 | |
|
|
802 | static int |
|
|
803 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
804 | { |
|
|
805 | const char *s = MgPV_nolen_const (mg); |
|
|
806 | |
|
|
807 | if (*s == '_') |
|
|
808 | { |
|
|
809 | SV **svp = 0; |
|
|
810 | |
|
|
811 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
812 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
813 | |
|
|
814 | if (svp) |
|
|
815 | { |
|
|
816 | SV *old = *svp; |
|
|
817 | *svp = 0; |
|
|
818 | SvREFCNT_dec (old); |
|
|
819 | return 0; |
|
|
820 | } |
|
|
821 | } |
|
|
822 | |
|
|
823 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
698 | } |
824 | } |
699 | |
825 | |
700 | static int |
826 | static int |
701 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
827 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
702 | { |
828 | { |
… | |
… | |
712 | if (svp) |
838 | if (svp) |
713 | { |
839 | { |
714 | SV *old = *svp; |
840 | SV *old = *svp; |
715 | *svp = newSVsv (sv); |
841 | *svp = newSVsv (sv); |
716 | SvREFCNT_dec (old); |
842 | SvREFCNT_dec (old); |
717 | return; |
843 | return 0; |
718 | } |
844 | } |
719 | } |
845 | } |
720 | |
846 | |
721 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
847 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
722 | } |
848 | } |
723 | |
849 | |
724 | static void |
850 | static void |
|
|
851 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
852 | { |
|
|
853 | /* kind of mega-hacky, but works */ |
|
|
854 | ta->next = ta->prev = (struct coro *)ta; |
|
|
855 | } |
|
|
856 | |
|
|
857 | static int |
|
|
858 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
859 | { |
|
|
860 | return 0; |
|
|
861 | } |
|
|
862 | |
|
|
863 | static int |
|
|
864 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
865 | { |
|
|
866 | return 1; |
|
|
867 | } |
|
|
868 | |
|
|
869 | static UNOP coro_setup_op; |
|
|
870 | |
|
|
871 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
725 | coro_setup (pTHX_ struct coro *coro) |
872 | coro_setup (pTHX_ struct coro *coro) |
726 | { |
873 | { |
727 | /* |
874 | /* |
728 | * emulate part of the perl startup here. |
875 | * emulate part of the perl startup here. |
729 | */ |
876 | */ |
… | |
… | |
731 | |
878 | |
732 | PL_runops = RUNOPS_DEFAULT; |
879 | PL_runops = RUNOPS_DEFAULT; |
733 | PL_curcop = &PL_compiling; |
880 | PL_curcop = &PL_compiling; |
734 | PL_in_eval = EVAL_NULL; |
881 | PL_in_eval = EVAL_NULL; |
735 | PL_comppad = 0; |
882 | PL_comppad = 0; |
|
|
883 | PL_comppad_name = 0; |
|
|
884 | PL_comppad_name_fill = 0; |
|
|
885 | PL_comppad_name_floor = 0; |
736 | PL_curpm = 0; |
886 | PL_curpm = 0; |
737 | PL_curpad = 0; |
887 | PL_curpad = 0; |
738 | PL_localizing = 0; |
888 | PL_localizing = 0; |
739 | PL_dirty = 0; |
889 | PL_dirty = 0; |
740 | PL_restartop = 0; |
890 | PL_restartop = 0; |
741 | #if PERL_VERSION_ATLEAST (5,10,0) |
891 | #if PERL_VERSION_ATLEAST (5,10,0) |
742 | PL_parser = 0; |
892 | PL_parser = 0; |
743 | #endif |
893 | #endif |
|
|
894 | PL_hints = 0; |
744 | |
895 | |
745 | /* recreate the die/warn hooks */ |
896 | /* recreate the die/warn hooks */ |
746 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
897 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
747 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
898 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
748 | |
899 | |
749 | GvSV (PL_defgv) = newSV (0); |
900 | GvSV (PL_defgv) = newSV (0); |
750 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
901 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
751 | GvSV (PL_errgv) = newSV (0); |
902 | GvSV (PL_errgv) = newSV (0); |
752 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
903 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
904 | GvHV (PL_hintgv) = 0; |
753 | PL_rs = newSVsv (GvSV (irsgv)); |
905 | PL_rs = newSVsv (GvSV (irsgv)); |
754 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
906 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
755 | |
907 | |
756 | { |
908 | { |
757 | dSP; |
909 | dSP; |
758 | LOGOP myop; |
910 | UNOP myop; |
759 | |
911 | |
760 | Zero (&myop, 1, LOGOP); |
912 | Zero (&myop, 1, UNOP); |
761 | myop.op_next = Nullop; |
913 | myop.op_next = Nullop; |
|
|
914 | myop.op_type = OP_ENTERSUB; |
762 | myop.op_flags = OPf_WANT_VOID; |
915 | myop.op_flags = OPf_WANT_VOID; |
763 | |
916 | |
764 | PUSHMARK (SP); |
917 | PUSHMARK (SP); |
765 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
918 | PUSHs ((SV *)coro->startcv); |
766 | PUTBACK; |
919 | PUTBACK; |
767 | PL_op = (OP *)&myop; |
920 | PL_op = (OP *)&myop; |
768 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
921 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
769 | SPAGAIN; |
|
|
770 | } |
922 | } |
771 | |
923 | |
772 | /* this newly created coroutine might be run on an existing cctx which most |
924 | /* this newly created coroutine might be run on an existing cctx which most |
773 | * likely was suspended in set_stacklevel, called from entersub. |
925 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
774 | * set_stacklevl doesn't do anything on return, but entersub does LEAVE, |
|
|
775 | * so we ENTER here for symmetry |
|
|
776 | */ |
926 | */ |
777 | ENTER; |
927 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
778 | } |
928 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
779 | |
929 | |
|
|
930 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
931 | coro_setup_op.op_next = PL_op; |
|
|
932 | coro_setup_op.op_type = OP_ENTERSUB; |
|
|
933 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
934 | /* no flags etc. required, as an init function won't be called */ |
|
|
935 | |
|
|
936 | PL_op = (OP *)&coro_setup_op; |
|
|
937 | |
|
|
938 | /* copy throw, in case it was set before coro_setup */ |
|
|
939 | CORO_THROW = coro->except; |
|
|
940 | } |
|
|
941 | |
780 | static void |
942 | static void |
781 | coro_destroy (pTHX_ struct coro *coro) |
943 | coro_unwind_stacks (pTHX) |
782 | { |
944 | { |
783 | if (!IN_DESTRUCT) |
945 | if (!IN_DESTRUCT) |
784 | { |
946 | { |
785 | /* restore all saved variables and stuff */ |
947 | /* restore all saved variables and stuff */ |
786 | LEAVE_SCOPE (0); |
948 | LEAVE_SCOPE (0); |
… | |
… | |
794 | POPSTACK_TO (PL_mainstack); |
956 | POPSTACK_TO (PL_mainstack); |
795 | |
957 | |
796 | /* unwind main stack */ |
958 | /* unwind main stack */ |
797 | dounwind (-1); |
959 | dounwind (-1); |
798 | } |
960 | } |
|
|
961 | } |
|
|
962 | |
|
|
963 | static void |
|
|
964 | coro_destruct_perl (pTHX_ struct coro *coro) |
|
|
965 | { |
|
|
966 | coro_unwind_stacks (aTHX); |
799 | |
967 | |
800 | SvREFCNT_dec (GvSV (PL_defgv)); |
968 | SvREFCNT_dec (GvSV (PL_defgv)); |
801 | SvREFCNT_dec (GvAV (PL_defgv)); |
969 | SvREFCNT_dec (GvAV (PL_defgv)); |
802 | SvREFCNT_dec (GvSV (PL_errgv)); |
970 | SvREFCNT_dec (GvSV (PL_errgv)); |
803 | SvREFCNT_dec (PL_defoutgv); |
971 | SvREFCNT_dec (PL_defoutgv); |
804 | SvREFCNT_dec (PL_rs); |
972 | SvREFCNT_dec (PL_rs); |
805 | SvREFCNT_dec (GvSV (irsgv)); |
973 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
974 | SvREFCNT_dec (GvHV (PL_hintgv)); |
806 | |
975 | |
807 | SvREFCNT_dec (PL_diehook); |
976 | SvREFCNT_dec (PL_diehook); |
808 | SvREFCNT_dec (PL_warnhook); |
977 | SvREFCNT_dec (PL_warnhook); |
809 | |
978 | |
810 | SvREFCNT_dec (coro->saved_deffh); |
979 | SvREFCNT_dec (coro->saved_deffh); |
811 | SvREFCNT_dec (coro->throw); |
980 | SvREFCNT_dec (coro->rouse_cb); |
|
|
981 | SvREFCNT_dec (coro->invoke_cb); |
|
|
982 | SvREFCNT_dec (coro->invoke_av); |
812 | |
983 | |
813 | coro_destroy_stacks (aTHX); |
984 | coro_destruct_stacks (aTHX); |
814 | } |
985 | } |
815 | |
986 | |
816 | static void |
987 | INLINE void |
817 | free_coro_mortal (pTHX) |
988 | free_coro_mortal (pTHX) |
818 | { |
989 | { |
819 | if (expect_true (coro_mortal)) |
990 | if (expect_true (coro_mortal)) |
820 | { |
991 | { |
821 | SvREFCNT_dec (coro_mortal); |
992 | SvREFCNT_dec (coro_mortal); |
… | |
… | |
826 | static int |
997 | static int |
827 | runops_trace (pTHX) |
998 | runops_trace (pTHX) |
828 | { |
999 | { |
829 | COP *oldcop = 0; |
1000 | COP *oldcop = 0; |
830 | int oldcxix = -2; |
1001 | int oldcxix = -2; |
831 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
832 | coro_cctx *cctx = coro->cctx; |
|
|
833 | |
1002 | |
834 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1003 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
835 | { |
1004 | { |
836 | PERL_ASYNC_CHECK (); |
1005 | PERL_ASYNC_CHECK (); |
837 | |
1006 | |
838 | if (cctx->flags & CC_TRACE_ALL) |
1007 | if (cctx_current->flags & CC_TRACE_ALL) |
839 | { |
1008 | { |
840 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1009 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
841 | { |
1010 | { |
842 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1011 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
843 | SV **bot, **top; |
1012 | SV **bot, **top; |
844 | AV *av = newAV (); /* return values */ |
1013 | AV *av = newAV (); /* return values */ |
845 | SV **cb; |
1014 | SV **cb; |
… | |
… | |
855 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
1024 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
856 | : bot; |
1025 | : bot; |
857 | |
1026 | |
858 | av_extend (av, top - bot); |
1027 | av_extend (av, top - bot); |
859 | while (bot < top) |
1028 | while (bot < top) |
860 | av_push (av, SvREFCNT_inc (*bot++)); |
1029 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
861 | |
1030 | |
862 | PL_runops = RUNOPS_DEFAULT; |
1031 | PL_runops = RUNOPS_DEFAULT; |
863 | ENTER; |
1032 | ENTER; |
864 | SAVETMPS; |
1033 | SAVETMPS; |
865 | EXTEND (SP, 3); |
1034 | EXTEND (SP, 3); |
… | |
… | |
882 | |
1051 | |
883 | if (PL_curcop != &PL_compiling) |
1052 | if (PL_curcop != &PL_compiling) |
884 | { |
1053 | { |
885 | SV **cb; |
1054 | SV **cb; |
886 | |
1055 | |
887 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1056 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
888 | { |
1057 | { |
889 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1058 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
890 | |
1059 | |
891 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1060 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
892 | { |
1061 | { |
893 | runops_proc_t old_runops = PL_runops; |
|
|
894 | dSP; |
1062 | dSP; |
895 | GV *gv = CvGV (cx->blk_sub.cv); |
1063 | GV *gv = CvGV (cx->blk_sub.cv); |
896 | SV *fullname = sv_2mortal (newSV (0)); |
1064 | SV *fullname = sv_2mortal (newSV (0)); |
897 | |
1065 | |
898 | if (isGV (gv)) |
1066 | if (isGV (gv)) |
… | |
… | |
903 | SAVETMPS; |
1071 | SAVETMPS; |
904 | EXTEND (SP, 3); |
1072 | EXTEND (SP, 3); |
905 | PUSHMARK (SP); |
1073 | PUSHMARK (SP); |
906 | PUSHs (&PL_sv_yes); |
1074 | PUSHs (&PL_sv_yes); |
907 | PUSHs (fullname); |
1075 | PUSHs (fullname); |
908 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1076 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
909 | PUTBACK; |
1077 | PUTBACK; |
910 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1078 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
911 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1079 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
912 | SPAGAIN; |
1080 | SPAGAIN; |
913 | FREETMPS; |
1081 | FREETMPS; |
… | |
… | |
916 | } |
1084 | } |
917 | |
1085 | |
918 | oldcxix = cxstack_ix; |
1086 | oldcxix = cxstack_ix; |
919 | } |
1087 | } |
920 | |
1088 | |
921 | if (cctx->flags & CC_TRACE_LINE) |
1089 | if (cctx_current->flags & CC_TRACE_LINE) |
922 | { |
1090 | { |
923 | dSP; |
1091 | dSP; |
924 | |
1092 | |
925 | PL_runops = RUNOPS_DEFAULT; |
1093 | PL_runops = RUNOPS_DEFAULT; |
926 | ENTER; |
1094 | ENTER; |
… | |
… | |
945 | |
1113 | |
946 | TAINT_NOT; |
1114 | TAINT_NOT; |
947 | return 0; |
1115 | return 0; |
948 | } |
1116 | } |
949 | |
1117 | |
950 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1118 | static struct CoroSLF cctx_ssl_frame; |
951 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1119 | |
952 | /* during execution of a perl program */ |
1120 | static void |
|
|
1121 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1122 | { |
|
|
1123 | ta->prev = 0; |
|
|
1124 | } |
|
|
1125 | |
|
|
1126 | static int |
|
|
1127 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1128 | { |
|
|
1129 | *frame = cctx_ssl_frame; |
|
|
1130 | |
|
|
1131 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1132 | } |
|
|
1133 | |
|
|
1134 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
953 | static void NOINLINE |
1135 | static void NOINLINE |
954 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1136 | cctx_prepare (pTHX) |
955 | { |
1137 | { |
956 | dSP; |
|
|
957 | LOGOP myop; |
|
|
958 | |
|
|
959 | PL_top_env = &PL_start_env; |
1138 | PL_top_env = &PL_start_env; |
960 | |
1139 | |
961 | if (cctx->flags & CC_TRACE) |
1140 | if (cctx_current->flags & CC_TRACE) |
962 | PL_runops = runops_trace; |
1141 | PL_runops = runops_trace; |
963 | |
1142 | |
964 | Zero (&myop, 1, LOGOP); |
1143 | /* we already must be executing an SLF op, there is no other valid way |
965 | myop.op_next = PL_op; |
1144 | * that can lead to creation of a new cctx */ |
966 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1145 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1146 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
967 | |
1147 | |
968 | PUSHMARK (SP); |
1148 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
969 | EXTEND (SP, 2); |
1149 | cctx_ssl_frame = slf_frame; |
970 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1150 | |
971 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1151 | slf_frame.prepare = slf_prepare_set_stacklevel; |
972 | PUTBACK; |
1152 | slf_frame.check = slf_check_set_stacklevel; |
973 | PL_op = (OP *)&myop; |
1153 | } |
974 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1154 | |
975 | SPAGAIN; |
1155 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1156 | INLINE void |
|
|
1157 | transfer_tail (pTHX) |
|
|
1158 | { |
|
|
1159 | free_coro_mortal (aTHX); |
976 | } |
1160 | } |
977 | |
1161 | |
978 | /* |
1162 | /* |
979 | * this is a _very_ stripped down perl interpreter ;) |
1163 | * this is a _very_ stripped down perl interpreter ;) |
980 | */ |
1164 | */ |
981 | static void |
1165 | static void |
982 | cctx_run (void *arg) |
1166 | cctx_run (void *arg) |
983 | { |
1167 | { |
|
|
1168 | #ifdef USE_ITHREADS |
|
|
1169 | # if CORO_PTHREAD |
|
|
1170 | PERL_SET_CONTEXT (coro_thx); |
|
|
1171 | # endif |
|
|
1172 | #endif |
|
|
1173 | { |
984 | dTHX; |
1174 | dTHX; |
985 | |
1175 | |
986 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
1176 | /* normally we would need to skip the entersub here */ |
987 | UNLOCK; |
1177 | /* not doing so will re-execute it, which is exactly what we want */ |
988 | |
|
|
989 | /* we now skip the entersub that lead to transfer() */ |
|
|
990 | PL_op = PL_op->op_next; |
1178 | /* PL_nop = PL_nop->op_next */ |
991 | |
1179 | |
992 | /* inject a fake subroutine call to cctx_init */ |
1180 | /* inject a fake subroutine call to cctx_init */ |
993 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1181 | cctx_prepare (aTHX); |
994 | |
1182 | |
|
|
1183 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1184 | transfer_tail (aTHX); |
|
|
1185 | |
995 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1186 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
996 | PL_restartop = PL_op; |
1187 | PL_restartop = PL_op; |
997 | perl_run (PL_curinterp); |
1188 | perl_run (PL_curinterp); |
998 | |
|
|
999 | /* |
1189 | /* |
|
|
1190 | * Unfortunately, there is no way to get at the return values of the |
|
|
1191 | * coro body here, as perl_run destroys these |
|
|
1192 | */ |
|
|
1193 | |
|
|
1194 | /* |
1000 | * If perl-run returns we assume exit() was being called or the coro |
1195 | * If perl-run returns we assume exit() was being called or the coro |
1001 | * fell off the end, which seems to be the only valid (non-bug) |
1196 | * fell off the end, which seems to be the only valid (non-bug) |
1002 | * reason for perl_run to return. We try to exit by jumping to the |
1197 | * reason for perl_run to return. We try to exit by jumping to the |
1003 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1198 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1004 | * coroutine as Coro has no such concept |
1199 | * coroutine as Coro has no such concept. |
|
|
1200 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1201 | * that backend are too broken to do it in a standards-compliant way. |
1005 | */ |
1202 | */ |
1006 | PL_top_env = main_top_env; |
1203 | PL_top_env = main_top_env; |
1007 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1204 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1205 | } |
1008 | } |
1206 | } |
1009 | |
1207 | |
1010 | static coro_cctx * |
1208 | static coro_cctx * |
1011 | cctx_new () |
1209 | cctx_new () |
1012 | { |
1210 | { |
1013 | coro_cctx *cctx; |
1211 | coro_cctx *cctx; |
|
|
1212 | |
|
|
1213 | ++cctx_count; |
|
|
1214 | New (0, cctx, 1, coro_cctx); |
|
|
1215 | |
|
|
1216 | cctx->gen = cctx_gen; |
|
|
1217 | cctx->flags = 0; |
|
|
1218 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1219 | |
|
|
1220 | return cctx; |
|
|
1221 | } |
|
|
1222 | |
|
|
1223 | /* create a new cctx only suitable as source */ |
|
|
1224 | static coro_cctx * |
|
|
1225 | cctx_new_empty () |
|
|
1226 | { |
|
|
1227 | coro_cctx *cctx = cctx_new (); |
|
|
1228 | |
|
|
1229 | cctx->sptr = 0; |
|
|
1230 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1231 | |
|
|
1232 | return cctx; |
|
|
1233 | } |
|
|
1234 | |
|
|
1235 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1236 | static coro_cctx * |
|
|
1237 | cctx_new_run () |
|
|
1238 | { |
|
|
1239 | coro_cctx *cctx = cctx_new (); |
1014 | void *stack_start; |
1240 | void *stack_start; |
1015 | size_t stack_size; |
1241 | size_t stack_size; |
1016 | |
1242 | |
1017 | ++cctx_count; |
|
|
1018 | |
|
|
1019 | Newz (0, cctx, 1, coro_cctx); |
|
|
1020 | |
|
|
1021 | #if HAVE_MMAP |
1243 | #if HAVE_MMAP |
1022 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1244 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1023 | /* mmap supposedly does allocate-on-write for us */ |
1245 | /* mmap supposedly does allocate-on-write for us */ |
1024 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1246 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1025 | |
1247 | |
1026 | if (cctx->sptr != (void *)-1) |
1248 | if (cctx->sptr != (void *)-1) |
1027 | { |
1249 | { |
1028 | # if CORO_STACKGUARD |
1250 | #if CORO_STACKGUARD |
1029 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1251 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1030 | # endif |
1252 | #endif |
1031 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1253 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
1032 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1254 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1033 | cctx->flags |= CC_MAPPED; |
1255 | cctx->flags |= CC_MAPPED; |
1034 | } |
1256 | } |
1035 | else |
1257 | else |
1036 | #endif |
1258 | #endif |
1037 | { |
1259 | { |
1038 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1260 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1039 | New (0, cctx->sptr, coro_stacksize, long); |
1261 | New (0, cctx->sptr, cctx_stacksize, long); |
1040 | |
1262 | |
1041 | if (!cctx->sptr) |
1263 | if (!cctx->sptr) |
1042 | { |
1264 | { |
1043 | perror ("FATAL: unable to allocate stack for coroutine"); |
1265 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1044 | _exit (EXIT_FAILURE); |
1266 | _exit (EXIT_FAILURE); |
1045 | } |
1267 | } |
1046 | |
1268 | |
1047 | stack_start = cctx->sptr; |
1269 | stack_start = cctx->sptr; |
1048 | stack_size = cctx->ssize; |
1270 | stack_size = cctx->ssize; |
1049 | } |
1271 | } |
1050 | |
1272 | |
1051 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1273 | #if CORO_USE_VALGRIND |
|
|
1274 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1275 | #endif |
|
|
1276 | |
1052 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1277 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1053 | |
1278 | |
1054 | return cctx; |
1279 | return cctx; |
1055 | } |
1280 | } |
1056 | |
1281 | |
… | |
… | |
1058 | cctx_destroy (coro_cctx *cctx) |
1283 | cctx_destroy (coro_cctx *cctx) |
1059 | { |
1284 | { |
1060 | if (!cctx) |
1285 | if (!cctx) |
1061 | return; |
1286 | return; |
1062 | |
1287 | |
|
|
1288 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? |
|
|
1289 | |
1063 | --cctx_count; |
1290 | --cctx_count; |
|
|
1291 | coro_destroy (&cctx->cctx); |
1064 | |
1292 | |
|
|
1293 | /* coro_transfer creates new, empty cctx's */ |
|
|
1294 | if (cctx->sptr) |
|
|
1295 | { |
1065 | #if CORO_USE_VALGRIND |
1296 | #if CORO_USE_VALGRIND |
1066 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1297 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1067 | #endif |
1298 | #endif |
1068 | |
1299 | |
1069 | #if HAVE_MMAP |
1300 | #if HAVE_MMAP |
1070 | if (cctx->flags & CC_MAPPED) |
1301 | if (cctx->flags & CC_MAPPED) |
1071 | munmap (cctx->sptr, cctx->ssize); |
1302 | munmap (cctx->sptr, cctx->ssize); |
1072 | else |
1303 | else |
1073 | #endif |
1304 | #endif |
1074 | Safefree (cctx->sptr); |
1305 | Safefree (cctx->sptr); |
|
|
1306 | } |
1075 | |
1307 | |
1076 | Safefree (cctx); |
1308 | Safefree (cctx); |
1077 | } |
1309 | } |
1078 | |
1310 | |
1079 | /* wether this cctx should be destructed */ |
1311 | /* wether this cctx should be destructed */ |
1080 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
1312 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1081 | |
1313 | |
1082 | static coro_cctx * |
1314 | static coro_cctx * |
1083 | cctx_get (pTHX) |
1315 | cctx_get (pTHX) |
1084 | { |
1316 | { |
1085 | while (expect_true (cctx_first)) |
1317 | while (expect_true (cctx_first)) |
… | |
… | |
1092 | return cctx; |
1324 | return cctx; |
1093 | |
1325 | |
1094 | cctx_destroy (cctx); |
1326 | cctx_destroy (cctx); |
1095 | } |
1327 | } |
1096 | |
1328 | |
1097 | return cctx_new (); |
1329 | return cctx_new_run (); |
1098 | } |
1330 | } |
1099 | |
1331 | |
1100 | static void |
1332 | static void |
1101 | cctx_put (coro_cctx *cctx) |
1333 | cctx_put (coro_cctx *cctx) |
1102 | { |
1334 | { |
|
|
1335 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1336 | |
1103 | /* free another cctx if overlimit */ |
1337 | /* free another cctx if overlimit */ |
1104 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
1338 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1105 | { |
1339 | { |
1106 | coro_cctx *first = cctx_first; |
1340 | coro_cctx *first = cctx_first; |
1107 | cctx_first = first->next; |
1341 | cctx_first = first->next; |
1108 | --cctx_idle; |
1342 | --cctx_idle; |
1109 | |
1343 | |
… | |
… | |
1118 | /** coroutine switching *****************************************************/ |
1352 | /** coroutine switching *****************************************************/ |
1119 | |
1353 | |
1120 | static void |
1354 | static void |
1121 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1355 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1122 | { |
1356 | { |
|
|
1357 | /* TODO: throwing up here is considered harmful */ |
|
|
1358 | |
1123 | if (expect_true (prev != next)) |
1359 | if (expect_true (prev != next)) |
1124 | { |
1360 | { |
1125 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1361 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1126 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1362 | croak ("Coro::State::transfer called with a suspended prev Coro::State, but can only transfer from running or new states,"); |
1127 | |
1363 | |
1128 | if (expect_false (next->flags & CF_RUNNING)) |
1364 | if (expect_false (next->flags & CF_RUNNING)) |
1129 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1365 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1130 | |
1366 | |
1131 | if (expect_false (next->flags & CF_DESTROYED)) |
1367 | if (expect_false (next->flags & CF_DESTROYED)) |
1132 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1368 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1133 | |
1369 | |
1134 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1370 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1135 | if (expect_false (PL_lex_state != LEX_NOTPARSING) |
1371 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1136 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version"); |
1372 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1137 | #endif |
1373 | #endif |
1138 | } |
1374 | } |
1139 | } |
1375 | } |
1140 | |
1376 | |
1141 | /* always use the TRANSFER macro */ |
1377 | /* always use the TRANSFER macro */ |
1142 | static void NOINLINE |
1378 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1143 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1379 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1144 | { |
1380 | { |
1145 | dSTACKLEVEL; |
1381 | dSTACKLEVEL; |
1146 | static volatile int has_throw; |
|
|
1147 | |
1382 | |
1148 | /* sometimes transfer is only called to set idle_sp */ |
1383 | /* sometimes transfer is only called to set idle_sp */ |
1149 | if (expect_false (!next)) |
1384 | if (expect_false (!prev)) |
1150 | { |
1385 | { |
1151 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1386 | cctx_current->idle_sp = STACKLEVEL; |
1152 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1387 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1153 | } |
1388 | } |
1154 | else if (expect_true (prev != next)) |
1389 | else if (expect_true (prev != next)) |
1155 | { |
1390 | { |
1156 | coro_cctx *prev__cctx; |
1391 | coro_cctx *cctx_prev; |
1157 | |
1392 | |
1158 | if (expect_false (prev->flags & CF_NEW)) |
1393 | if (expect_false (prev->flags & CF_NEW)) |
1159 | { |
1394 | { |
1160 | /* create a new empty context */ |
1395 | /* create a new empty/source context */ |
1161 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
1162 | prev->flags &= ~CF_NEW; |
1396 | prev->flags &= ~CF_NEW; |
1163 | prev->flags |= CF_RUNNING; |
1397 | prev->flags |= CF_RUNNING; |
1164 | } |
1398 | } |
1165 | |
1399 | |
1166 | prev->flags &= ~CF_RUNNING; |
1400 | prev->flags &= ~CF_RUNNING; |
1167 | next->flags |= CF_RUNNING; |
1401 | next->flags |= CF_RUNNING; |
1168 | |
|
|
1169 | LOCK; |
|
|
1170 | |
1402 | |
1171 | /* first get rid of the old state */ |
1403 | /* first get rid of the old state */ |
1172 | save_perl (aTHX_ prev); |
1404 | save_perl (aTHX_ prev); |
1173 | |
1405 | |
1174 | if (expect_false (next->flags & CF_NEW)) |
1406 | if (expect_false (next->flags & CF_NEW)) |
… | |
… | |
1179 | coro_setup (aTHX_ next); |
1411 | coro_setup (aTHX_ next); |
1180 | } |
1412 | } |
1181 | else |
1413 | else |
1182 | load_perl (aTHX_ next); |
1414 | load_perl (aTHX_ next); |
1183 | |
1415 | |
1184 | prev__cctx = prev->cctx; |
|
|
1185 | |
|
|
1186 | /* possibly "free" the cctx */ |
1416 | /* possibly untie and reuse the cctx */ |
1187 | if (expect_true ( |
1417 | if (expect_true ( |
1188 | prev__cctx->idle_sp == STACKLEVEL |
1418 | cctx_current->idle_sp == STACKLEVEL |
1189 | && !(prev__cctx->flags & CC_TRACE) |
1419 | && !(cctx_current->flags & CC_TRACE) |
1190 | && !force_cctx |
1420 | && !force_cctx |
1191 | )) |
1421 | )) |
1192 | { |
1422 | { |
1193 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1423 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1194 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1424 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1195 | |
1425 | |
1196 | prev->cctx = 0; |
|
|
1197 | |
|
|
1198 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1426 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
1199 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1427 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
1200 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1428 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
1201 | if (!next->cctx) |
1429 | if (expect_true (!next->cctx)) |
1202 | next->cctx = cctx_get (aTHX); |
1430 | next->cctx = cctx_get (aTHX); |
1203 | |
1431 | |
1204 | cctx_put (prev__cctx); |
1432 | cctx_put (cctx_current); |
1205 | } |
1433 | } |
|
|
1434 | else |
|
|
1435 | prev->cctx = cctx_current; |
1206 | |
1436 | |
1207 | ++next->usecount; |
1437 | ++next->usecount; |
1208 | |
1438 | |
1209 | if (expect_true (!next->cctx)) |
1439 | cctx_prev = cctx_current; |
1210 | next->cctx = cctx_get (aTHX); |
1440 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
1211 | |
1441 | |
1212 | has_throw = !!next->throw; |
1442 | next->cctx = 0; |
1213 | |
1443 | |
1214 | if (expect_false (prev__cctx != next->cctx)) |
1444 | if (expect_false (cctx_prev != cctx_current)) |
1215 | { |
1445 | { |
1216 | prev__cctx->top_env = PL_top_env; |
1446 | cctx_prev->top_env = PL_top_env; |
1217 | PL_top_env = next->cctx->top_env; |
1447 | PL_top_env = cctx_current->top_env; |
1218 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1448 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1219 | } |
1449 | } |
1220 | |
1450 | |
1221 | free_coro_mortal (aTHX); |
1451 | transfer_tail (aTHX); |
1222 | UNLOCK; |
|
|
1223 | |
|
|
1224 | if (expect_false (has_throw)) |
|
|
1225 | { |
|
|
1226 | struct coro *coro = SvSTATE (coro_current); |
|
|
1227 | |
|
|
1228 | if (coro->throw) |
|
|
1229 | { |
|
|
1230 | SV *exception = coro->throw; |
|
|
1231 | coro->throw = 0; |
|
|
1232 | sv_setsv (ERRSV, exception); |
|
|
1233 | croak (0); |
|
|
1234 | } |
|
|
1235 | } |
|
|
1236 | } |
1452 | } |
1237 | } |
1453 | } |
1238 | |
|
|
1239 | struct transfer_args |
|
|
1240 | { |
|
|
1241 | struct coro *prev, *next; |
|
|
1242 | }; |
|
|
1243 | |
1454 | |
1244 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1455 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1245 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1456 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1246 | |
1457 | |
1247 | /** high level stuff ********************************************************/ |
1458 | /** high level stuff ********************************************************/ |
… | |
… | |
1249 | static int |
1460 | static int |
1250 | coro_state_destroy (pTHX_ struct coro *coro) |
1461 | coro_state_destroy (pTHX_ struct coro *coro) |
1251 | { |
1462 | { |
1252 | if (coro->flags & CF_DESTROYED) |
1463 | if (coro->flags & CF_DESTROYED) |
1253 | return 0; |
1464 | return 0; |
|
|
1465 | |
|
|
1466 | if (coro->on_destroy) |
|
|
1467 | coro->on_destroy (aTHX_ coro); |
1254 | |
1468 | |
1255 | coro->flags |= CF_DESTROYED; |
1469 | coro->flags |= CF_DESTROYED; |
1256 | |
1470 | |
1257 | if (coro->flags & CF_READY) |
1471 | if (coro->flags & CF_READY) |
1258 | { |
1472 | { |
1259 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1473 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1260 | /* alternative: look through all ready queues and remove the coro */ |
1474 | /* alternative: look through all ready queues and remove the coro */ |
1261 | LOCK; |
|
|
1262 | --coro_nready; |
1475 | --coro_nready; |
1263 | UNLOCK; |
|
|
1264 | } |
1476 | } |
1265 | else |
1477 | else |
1266 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1478 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1267 | |
1479 | |
1268 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1480 | if (coro->mainstack |
|
|
1481 | && coro->mainstack != main_mainstack |
|
|
1482 | && coro->slot |
|
|
1483 | && !PL_dirty) |
1269 | { |
1484 | { |
1270 | struct coro temp; |
1485 | struct coro temp; |
1271 | |
1486 | |
1272 | if (coro->flags & CF_RUNNING) |
1487 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
1273 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1274 | |
1488 | |
1275 | save_perl (aTHX_ &temp); |
1489 | save_perl (aTHX_ &temp); |
1276 | load_perl (aTHX_ coro); |
1490 | load_perl (aTHX_ coro); |
1277 | |
1491 | |
1278 | coro_destroy (aTHX_ coro); |
1492 | coro_destruct_perl (aTHX_ coro); |
1279 | |
1493 | |
1280 | load_perl (aTHX_ &temp); |
1494 | load_perl (aTHX_ &temp); |
1281 | |
1495 | |
1282 | coro->slot = 0; |
1496 | coro->slot = 0; |
1283 | } |
1497 | } |
1284 | |
1498 | |
1285 | cctx_destroy (coro->cctx); |
1499 | cctx_destroy (coro->cctx); |
|
|
1500 | SvREFCNT_dec (coro->startcv); |
1286 | SvREFCNT_dec (coro->args); |
1501 | SvREFCNT_dec (coro->args); |
|
|
1502 | SvREFCNT_dec (CORO_THROW); |
1287 | |
1503 | |
1288 | if (coro->next) coro->next->prev = coro->prev; |
1504 | if (coro->next) coro->next->prev = coro->prev; |
1289 | if (coro->prev) coro->prev->next = coro->next; |
1505 | if (coro->prev) coro->prev->next = coro->next; |
1290 | if (coro == coro_first) coro_first = coro->next; |
1506 | if (coro == coro_first) coro_first = coro->next; |
1291 | |
1507 | |
… | |
… | |
1329 | # define MGf_DUP 0 |
1545 | # define MGf_DUP 0 |
1330 | #endif |
1546 | #endif |
1331 | }; |
1547 | }; |
1332 | |
1548 | |
1333 | static void |
1549 | static void |
1334 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1550 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1335 | { |
1551 | { |
1336 | ta->prev = SvSTATE (prev_sv); |
1552 | ta->prev = SvSTATE (prev_sv); |
1337 | ta->next = SvSTATE (next_sv); |
1553 | ta->next = SvSTATE (next_sv); |
1338 | TRANSFER_CHECK (*ta); |
1554 | TRANSFER_CHECK (*ta); |
1339 | } |
1555 | } |
1340 | |
1556 | |
1341 | static void |
1557 | static void |
1342 | api_transfer (SV *prev_sv, SV *next_sv) |
1558 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1343 | { |
1559 | { |
1344 | dTHX; |
|
|
1345 | struct transfer_args ta; |
1560 | struct coro_transfer_args ta; |
1346 | |
1561 | |
1347 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1562 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1348 | TRANSFER (ta, 1); |
1563 | TRANSFER (ta, 1); |
1349 | } |
1564 | } |
1350 | |
1565 | |
|
|
1566 | /*****************************************************************************/ |
|
|
1567 | /* gensub: simple closure generation utility */ |
|
|
1568 | |
|
|
1569 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1570 | |
|
|
1571 | /* create a closure from XS, returns a code reference */ |
|
|
1572 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1573 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1574 | static SV * |
|
|
1575 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1576 | { |
|
|
1577 | CV *cv = (CV *)newSV (0); |
|
|
1578 | |
|
|
1579 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1580 | |
|
|
1581 | CvANON_on (cv); |
|
|
1582 | CvISXSUB_on (cv); |
|
|
1583 | CvXSUB (cv) = xsub; |
|
|
1584 | GENSUB_ARG = arg; |
|
|
1585 | |
|
|
1586 | return newRV_noinc ((SV *)cv); |
|
|
1587 | } |
|
|
1588 | |
1351 | /** Coro ********************************************************************/ |
1589 | /** Coro ********************************************************************/ |
1352 | |
1590 | |
1353 | static void |
1591 | INLINE void |
1354 | coro_enq (pTHX_ SV *coro_sv) |
1592 | coro_enq (pTHX_ struct coro *coro) |
1355 | { |
1593 | { |
1356 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1594 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1357 | } |
1595 | } |
1358 | |
1596 | |
1359 | static SV * |
1597 | INLINE SV * |
1360 | coro_deq (pTHX) |
1598 | coro_deq (pTHX) |
1361 | { |
1599 | { |
1362 | int prio; |
1600 | int prio; |
1363 | |
1601 | |
1364 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1602 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
… | |
… | |
1367 | |
1605 | |
1368 | return 0; |
1606 | return 0; |
1369 | } |
1607 | } |
1370 | |
1608 | |
1371 | static int |
1609 | static int |
1372 | api_ready (SV *coro_sv) |
1610 | api_ready (pTHX_ SV *coro_sv) |
1373 | { |
1611 | { |
1374 | dTHX; |
|
|
1375 | struct coro *coro; |
1612 | struct coro *coro; |
1376 | |
1613 | SV *sv_hook; |
1377 | if (SvROK (coro_sv)) |
1614 | void (*xs_hook)(void); |
1378 | coro_sv = SvRV (coro_sv); |
|
|
1379 | |
1615 | |
1380 | coro = SvSTATE (coro_sv); |
1616 | coro = SvSTATE (coro_sv); |
1381 | |
1617 | |
1382 | if (coro->flags & CF_READY) |
1618 | if (coro->flags & CF_READY) |
1383 | return 0; |
1619 | return 0; |
1384 | |
1620 | |
1385 | coro->flags |= CF_READY; |
1621 | coro->flags |= CF_READY; |
1386 | |
1622 | |
1387 | LOCK; |
1623 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1388 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1624 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1625 | |
|
|
1626 | coro_enq (aTHX_ coro); |
1389 | ++coro_nready; |
1627 | ++coro_nready; |
1390 | UNLOCK; |
1628 | |
|
|
1629 | if (sv_hook) |
|
|
1630 | { |
|
|
1631 | dSP; |
|
|
1632 | |
|
|
1633 | ENTER; |
|
|
1634 | SAVETMPS; |
|
|
1635 | |
|
|
1636 | PUSHMARK (SP); |
|
|
1637 | PUTBACK; |
|
|
1638 | call_sv (sv_hook, G_VOID | G_DISCARD); |
|
|
1639 | |
|
|
1640 | FREETMPS; |
|
|
1641 | LEAVE; |
|
|
1642 | } |
|
|
1643 | |
|
|
1644 | if (xs_hook) |
|
|
1645 | xs_hook (); |
1391 | |
1646 | |
1392 | return 1; |
1647 | return 1; |
1393 | } |
1648 | } |
1394 | |
1649 | |
1395 | static int |
1650 | static int |
1396 | api_is_ready (SV *coro_sv) |
1651 | api_is_ready (pTHX_ SV *coro_sv) |
1397 | { |
1652 | { |
1398 | dTHX; |
|
|
1399 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1653 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1400 | } |
1654 | } |
1401 | |
1655 | |
1402 | static void |
1656 | /* expects to own a reference to next->hv */ |
|
|
1657 | INLINE void |
1403 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1658 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1404 | { |
1659 | { |
1405 | SV *prev_sv, *next_sv; |
|
|
1406 | |
|
|
1407 | for (;;) |
|
|
1408 | { |
|
|
1409 | LOCK; |
|
|
1410 | next_sv = coro_deq (aTHX); |
|
|
1411 | |
|
|
1412 | /* nothing to schedule: call the idle handler */ |
|
|
1413 | if (expect_false (!next_sv)) |
|
|
1414 | { |
|
|
1415 | dSP; |
|
|
1416 | UNLOCK; |
|
|
1417 | |
|
|
1418 | ENTER; |
|
|
1419 | SAVETMPS; |
|
|
1420 | |
|
|
1421 | PUSHMARK (SP); |
|
|
1422 | PUTBACK; |
|
|
1423 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1424 | SPAGAIN; |
|
|
1425 | |
|
|
1426 | FREETMPS; |
|
|
1427 | LEAVE; |
|
|
1428 | continue; |
|
|
1429 | } |
|
|
1430 | |
|
|
1431 | ta->next = SvSTATE (next_sv); |
|
|
1432 | |
|
|
1433 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1434 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1435 | { |
|
|
1436 | UNLOCK; |
|
|
1437 | SvREFCNT_dec (next_sv); |
|
|
1438 | /* coro_nready is already taken care of by destroy */ |
|
|
1439 | continue; |
|
|
1440 | } |
|
|
1441 | |
|
|
1442 | --coro_nready; |
|
|
1443 | UNLOCK; |
|
|
1444 | break; |
|
|
1445 | } |
|
|
1446 | |
|
|
1447 | /* free this only after the transfer */ |
|
|
1448 | prev_sv = SvRV (coro_current); |
1660 | SV *prev_sv = SvRV (coro_current); |
|
|
1661 | |
1449 | ta->prev = SvSTATE (prev_sv); |
1662 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1663 | ta->next = next; |
|
|
1664 | |
1450 | TRANSFER_CHECK (*ta); |
1665 | TRANSFER_CHECK (*ta); |
1451 | assert (ta->next->flags & CF_READY); |
1666 | |
1452 | ta->next->flags &= ~CF_READY; |
|
|
1453 | SvRV_set (coro_current, next_sv); |
1667 | SvRV_set (coro_current, (SV *)next->hv); |
1454 | |
1668 | |
1455 | LOCK; |
|
|
1456 | free_coro_mortal (aTHX); |
1669 | free_coro_mortal (aTHX); |
1457 | coro_mortal = prev_sv; |
1670 | coro_mortal = prev_sv; |
1458 | UNLOCK; |
|
|
1459 | } |
1671 | } |
1460 | |
1672 | |
1461 | static void |
1673 | static void |
|
|
1674 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1675 | { |
|
|
1676 | for (;;) |
|
|
1677 | { |
|
|
1678 | SV *next_sv = coro_deq (aTHX); |
|
|
1679 | |
|
|
1680 | if (expect_true (next_sv)) |
|
|
1681 | { |
|
|
1682 | struct coro *next = SvSTATE_hv (next_sv); |
|
|
1683 | |
|
|
1684 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1685 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1686 | SvREFCNT_dec (next_sv); /* coro_nready has already been taken care of by destroy */ |
|
|
1687 | else |
|
|
1688 | { |
|
|
1689 | next->flags &= ~CF_READY; |
|
|
1690 | --coro_nready; |
|
|
1691 | |
|
|
1692 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1693 | break; |
|
|
1694 | } |
|
|
1695 | } |
|
|
1696 | else |
|
|
1697 | { |
|
|
1698 | /* nothing to schedule: call the idle handler */ |
|
|
1699 | if (SvROK (sv_idle) |
|
|
1700 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1701 | { |
|
|
1702 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1703 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1704 | --coro_nready; |
|
|
1705 | } |
|
|
1706 | else |
|
|
1707 | { |
|
|
1708 | dSP; |
|
|
1709 | |
|
|
1710 | ENTER; |
|
|
1711 | SAVETMPS; |
|
|
1712 | |
|
|
1713 | PUSHMARK (SP); |
|
|
1714 | PUTBACK; |
|
|
1715 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1716 | |
|
|
1717 | FREETMPS; |
|
|
1718 | LEAVE; |
|
|
1719 | } |
|
|
1720 | } |
|
|
1721 | } |
|
|
1722 | } |
|
|
1723 | |
|
|
1724 | INLINE void |
1462 | prepare_cede (pTHX_ struct transfer_args *ta) |
1725 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1463 | { |
1726 | { |
1464 | api_ready (coro_current); |
1727 | api_ready (aTHX_ coro_current); |
1465 | prepare_schedule (aTHX_ ta); |
1728 | prepare_schedule (aTHX_ ta); |
1466 | } |
1729 | } |
1467 | |
1730 | |
|
|
1731 | INLINE void |
|
|
1732 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1733 | { |
|
|
1734 | SV *prev = SvRV (coro_current); |
|
|
1735 | |
|
|
1736 | if (coro_nready) |
|
|
1737 | { |
|
|
1738 | prepare_schedule (aTHX_ ta); |
|
|
1739 | api_ready (aTHX_ prev); |
|
|
1740 | } |
|
|
1741 | else |
|
|
1742 | prepare_nop (aTHX_ ta); |
|
|
1743 | } |
|
|
1744 | |
|
|
1745 | static void |
|
|
1746 | api_schedule (pTHX) |
|
|
1747 | { |
|
|
1748 | struct coro_transfer_args ta; |
|
|
1749 | |
|
|
1750 | prepare_schedule (aTHX_ &ta); |
|
|
1751 | TRANSFER (ta, 1); |
|
|
1752 | } |
|
|
1753 | |
|
|
1754 | static void |
|
|
1755 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1756 | { |
|
|
1757 | struct coro_transfer_args ta; |
|
|
1758 | struct coro *next = SvSTATE (coro_sv); |
|
|
1759 | |
|
|
1760 | SvREFCNT_inc_NN (coro_sv); |
|
|
1761 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
1762 | } |
|
|
1763 | |
1468 | static int |
1764 | static int |
1469 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1765 | api_cede (pTHX) |
1470 | { |
1766 | { |
1471 | if (coro_nready) |
1767 | struct coro_transfer_args ta; |
1472 | { |
1768 | |
1473 | SV *prev = SvRV (coro_current); |
|
|
1474 | prepare_schedule (aTHX_ ta); |
1769 | prepare_cede (aTHX_ &ta); |
1475 | api_ready (prev); |
1770 | |
|
|
1771 | if (expect_true (ta.prev != ta.next)) |
|
|
1772 | { |
|
|
1773 | TRANSFER (ta, 1); |
1476 | return 1; |
1774 | return 1; |
1477 | } |
1775 | } |
1478 | else |
1776 | else |
1479 | return 0; |
1777 | return 0; |
1480 | } |
1778 | } |
1481 | |
1779 | |
1482 | static void |
|
|
1483 | api_schedule (void) |
|
|
1484 | { |
|
|
1485 | dTHX; |
|
|
1486 | struct transfer_args ta; |
|
|
1487 | |
|
|
1488 | prepare_schedule (aTHX_ &ta); |
|
|
1489 | TRANSFER (ta, 1); |
|
|
1490 | } |
|
|
1491 | |
|
|
1492 | static int |
1780 | static int |
1493 | api_cede (void) |
1781 | api_cede_notself (pTHX) |
1494 | { |
1782 | { |
1495 | dTHX; |
1783 | if (coro_nready) |
|
|
1784 | { |
1496 | struct transfer_args ta; |
1785 | struct coro_transfer_args ta; |
1497 | |
1786 | |
1498 | prepare_cede (aTHX_ &ta); |
1787 | prepare_cede_notself (aTHX_ &ta); |
1499 | |
|
|
1500 | if (expect_true (ta.prev != ta.next)) |
|
|
1501 | { |
|
|
1502 | TRANSFER (ta, 1); |
1788 | TRANSFER (ta, 1); |
1503 | return 1; |
1789 | return 1; |
1504 | } |
1790 | } |
1505 | else |
1791 | else |
1506 | return 0; |
1792 | return 0; |
1507 | } |
1793 | } |
1508 | |
1794 | |
1509 | static int |
1795 | static void |
1510 | api_cede_notself (void) |
|
|
1511 | { |
|
|
1512 | dTHX; |
|
|
1513 | struct transfer_args ta; |
|
|
1514 | |
|
|
1515 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1516 | { |
|
|
1517 | TRANSFER (ta, 1); |
|
|
1518 | return 1; |
|
|
1519 | } |
|
|
1520 | else |
|
|
1521 | return 0; |
|
|
1522 | } |
|
|
1523 | |
|
|
1524 | static void |
|
|
1525 | api_trace (SV *coro_sv, int flags) |
1796 | api_trace (pTHX_ SV *coro_sv, int flags) |
1526 | { |
1797 | { |
1527 | dTHX; |
|
|
1528 | struct coro *coro = SvSTATE (coro_sv); |
1798 | struct coro *coro = SvSTATE (coro_sv); |
1529 | |
1799 | |
|
|
1800 | if (coro->flags & CF_RUNNING) |
|
|
1801 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
1802 | |
1530 | if (flags & CC_TRACE) |
1803 | if (flags & CC_TRACE) |
1531 | { |
1804 | { |
1532 | if (!coro->cctx) |
1805 | if (!coro->cctx) |
1533 | coro->cctx = cctx_new (); |
1806 | coro->cctx = cctx_new_run (); |
1534 | else if (!(coro->cctx->flags & CC_TRACE)) |
1807 | else if (!(coro->cctx->flags & CC_TRACE)) |
1535 | croak ("cannot enable tracing on coroutine with custom stack"); |
1808 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1536 | |
1809 | |
1537 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1810 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1538 | } |
1811 | } |
1539 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1812 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1540 | { |
1813 | { |
… | |
… | |
1545 | else |
1818 | else |
1546 | coro->slot->runops = RUNOPS_DEFAULT; |
1819 | coro->slot->runops = RUNOPS_DEFAULT; |
1547 | } |
1820 | } |
1548 | } |
1821 | } |
1549 | |
1822 | |
|
|
1823 | static void |
|
|
1824 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
1825 | { |
|
|
1826 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
|
|
1827 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
1828 | |
|
|
1829 | if (on_destroyp) |
|
|
1830 | { |
|
|
1831 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
1832 | |
|
|
1833 | while (AvFILLp (on_destroy) >= 0) |
|
|
1834 | { |
|
|
1835 | dSP; /* don't disturb outer sp */ |
|
|
1836 | SV *cb = av_pop (on_destroy); |
|
|
1837 | |
|
|
1838 | PUSHMARK (SP); |
|
|
1839 | |
|
|
1840 | if (statusp) |
|
|
1841 | { |
|
|
1842 | int i; |
|
|
1843 | AV *status = (AV *)SvRV (*statusp); |
|
|
1844 | EXTEND (SP, AvFILLp (status) + 1); |
|
|
1845 | |
|
|
1846 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
1847 | PUSHs (AvARRAY (status)[i]); |
|
|
1848 | } |
|
|
1849 | |
|
|
1850 | PUTBACK; |
|
|
1851 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
|
|
1852 | } |
|
|
1853 | } |
|
|
1854 | } |
|
|
1855 | |
|
|
1856 | static void |
|
|
1857 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1858 | { |
|
|
1859 | int i; |
|
|
1860 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1861 | AV *av = newAV (); |
|
|
1862 | |
|
|
1863 | av_extend (av, items - 1); |
|
|
1864 | for (i = 0; i < items; ++i) |
|
|
1865 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
1866 | |
|
|
1867 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
|
|
1868 | |
|
|
1869 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
|
|
1870 | api_ready (aTHX_ sv_manager); |
|
|
1871 | |
|
|
1872 | frame->prepare = prepare_schedule; |
|
|
1873 | frame->check = slf_check_repeat; |
|
|
1874 | |
|
|
1875 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
1876 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
1877 | /*coro_unwind_stacks (aTHX);*/ |
|
|
1878 | } |
|
|
1879 | |
|
|
1880 | /*****************************************************************************/ |
|
|
1881 | /* async pool handler */ |
|
|
1882 | |
|
|
1883 | static int |
|
|
1884 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
1885 | { |
|
|
1886 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1887 | struct coro *coro = (struct coro *)frame->data; |
|
|
1888 | |
|
|
1889 | if (!coro->invoke_cb) |
|
|
1890 | return 1; /* loop till we have invoke */ |
|
|
1891 | else |
|
|
1892 | { |
|
|
1893 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1894 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1895 | |
|
|
1896 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
1897 | |
|
|
1898 | { |
|
|
1899 | dSP; |
|
|
1900 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
1901 | PUTBACK; |
|
|
1902 | } |
|
|
1903 | |
|
|
1904 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
1905 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
1906 | coro->invoke_av = 0; |
|
|
1907 | |
|
|
1908 | return 0; |
|
|
1909 | } |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | static void |
|
|
1913 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1914 | { |
|
|
1915 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1916 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
1917 | |
|
|
1918 | if (expect_true (coro->saved_deffh)) |
|
|
1919 | { |
|
|
1920 | /* subsequent iteration */ |
|
|
1921 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1922 | coro->saved_deffh = 0; |
|
|
1923 | |
|
|
1924 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
1925 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1926 | { |
|
|
1927 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
1928 | coro->invoke_av = newAV (); |
|
|
1929 | |
|
|
1930 | frame->prepare = prepare_nop; |
|
|
1931 | } |
|
|
1932 | else |
|
|
1933 | { |
|
|
1934 | av_clear (GvAV (PL_defgv)); |
|
|
1935 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
1936 | |
|
|
1937 | coro->prio = 0; |
|
|
1938 | |
|
|
1939 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1940 | api_trace (aTHX_ coro_current, 0); |
|
|
1941 | |
|
|
1942 | frame->prepare = prepare_schedule; |
|
|
1943 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
1944 | } |
|
|
1945 | } |
|
|
1946 | else |
|
|
1947 | { |
|
|
1948 | /* first iteration, simply fall through */ |
|
|
1949 | frame->prepare = prepare_nop; |
|
|
1950 | } |
|
|
1951 | |
|
|
1952 | frame->check = slf_check_pool_handler; |
|
|
1953 | frame->data = (void *)coro; |
|
|
1954 | } |
|
|
1955 | |
|
|
1956 | /*****************************************************************************/ |
|
|
1957 | /* rouse callback */ |
|
|
1958 | |
|
|
1959 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
1960 | |
|
|
1961 | static void |
|
|
1962 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
1963 | { |
|
|
1964 | dXSARGS; |
|
|
1965 | SV *data = (SV *)GENSUB_ARG; |
|
|
1966 | |
|
|
1967 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1968 | { |
|
|
1969 | /* first call, set args */ |
|
|
1970 | AV *av = newAV (); |
|
|
1971 | SV *coro = SvRV (data); |
|
|
1972 | |
|
|
1973 | SvRV_set (data, (SV *)av); |
|
|
1974 | api_ready (aTHX_ coro); |
|
|
1975 | SvREFCNT_dec (coro); |
|
|
1976 | |
|
|
1977 | /* better take a full copy of the arguments */ |
|
|
1978 | while (items--) |
|
|
1979 | av_store (av, items, newSVsv (ST (items))); |
|
|
1980 | } |
|
|
1981 | |
|
|
1982 | XSRETURN_EMPTY; |
|
|
1983 | } |
|
|
1984 | |
|
|
1985 | static int |
|
|
1986 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
1987 | { |
|
|
1988 | SV *data = (SV *)frame->data; |
|
|
1989 | |
|
|
1990 | if (CORO_THROW) |
|
|
1991 | return 0; |
|
|
1992 | |
|
|
1993 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1994 | return 1; |
|
|
1995 | |
|
|
1996 | /* now push all results on the stack */ |
|
|
1997 | { |
|
|
1998 | dSP; |
|
|
1999 | AV *av = (AV *)SvRV (data); |
|
|
2000 | int i; |
|
|
2001 | |
|
|
2002 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2003 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2004 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2005 | |
|
|
2006 | /* we have stolen the elements, so ste length to zero and free */ |
|
|
2007 | AvFILLp (av) = -1; |
|
|
2008 | av_undef (av); |
|
|
2009 | |
|
|
2010 | PUTBACK; |
|
|
2011 | } |
|
|
2012 | |
|
|
2013 | return 0; |
|
|
2014 | } |
|
|
2015 | |
|
|
2016 | static void |
|
|
2017 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2018 | { |
|
|
2019 | SV *cb; |
|
|
2020 | |
|
|
2021 | if (items) |
|
|
2022 | cb = arg [0]; |
|
|
2023 | else |
|
|
2024 | { |
|
|
2025 | struct coro *coro = SvSTATE_current; |
|
|
2026 | |
|
|
2027 | if (!coro->rouse_cb) |
|
|
2028 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2029 | |
|
|
2030 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2031 | coro->rouse_cb = 0; |
|
|
2032 | } |
|
|
2033 | |
|
|
2034 | if (!SvROK (cb) |
|
|
2035 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2036 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2037 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2038 | |
|
|
2039 | { |
|
|
2040 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
2041 | SV *data = (SV *)GENSUB_ARG; |
|
|
2042 | |
|
|
2043 | frame->data = (void *)data; |
|
|
2044 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2045 | frame->check = slf_check_rouse_wait; |
|
|
2046 | } |
|
|
2047 | } |
|
|
2048 | |
|
|
2049 | static SV * |
|
|
2050 | coro_new_rouse_cb (pTHX) |
|
|
2051 | { |
|
|
2052 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2053 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2054 | SV *data = newRV_inc ((SV *)hv); |
|
|
2055 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2056 | |
|
|
2057 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2058 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2059 | |
|
|
2060 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2061 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2062 | |
|
|
2063 | return cb; |
|
|
2064 | } |
|
|
2065 | |
|
|
2066 | /*****************************************************************************/ |
|
|
2067 | /* schedule-like-function opcode (SLF) */ |
|
|
2068 | |
|
|
2069 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2070 | static const CV *slf_cv; |
|
|
2071 | static SV **slf_argv; |
|
|
2072 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2073 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2074 | |
|
|
2075 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2076 | /* recreate the stack frame as perl will on following calls */ |
|
|
2077 | /* since entersub cleared the stack */ |
|
|
2078 | static OP * |
|
|
2079 | pp_restore (pTHX) |
|
|
2080 | { |
|
|
2081 | int i; |
|
|
2082 | SV **SP = PL_stack_base + slf_ax; |
|
|
2083 | |
|
|
2084 | PUSHMARK (SP); |
|
|
2085 | |
|
|
2086 | EXTEND (SP, slf_argc + 1); |
|
|
2087 | |
|
|
2088 | for (i = 0; i < slf_argc; ++i) |
|
|
2089 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2090 | |
|
|
2091 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2092 | |
|
|
2093 | RETURNOP (slf_restore.op_first); |
|
|
2094 | } |
|
|
2095 | |
|
|
2096 | static void |
|
|
2097 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2098 | { |
|
|
2099 | SV **arg = (SV **)slf_frame.data; |
|
|
2100 | |
|
|
2101 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2102 | } |
|
|
2103 | |
|
|
2104 | static void |
|
|
2105 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2106 | { |
|
|
2107 | if (items != 2) |
|
|
2108 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2109 | |
|
|
2110 | frame->prepare = slf_prepare_transfer; |
|
|
2111 | frame->check = slf_check_nop; |
|
|
2112 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2113 | } |
|
|
2114 | |
|
|
2115 | static void |
|
|
2116 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2117 | { |
|
|
2118 | frame->prepare = prepare_schedule; |
|
|
2119 | frame->check = slf_check_nop; |
|
|
2120 | } |
|
|
2121 | |
|
|
2122 | static void |
|
|
2123 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2124 | { |
|
|
2125 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2126 | |
|
|
2127 | SvREFCNT_inc_NN (next->hv); |
|
|
2128 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2129 | } |
|
|
2130 | |
|
|
2131 | static void |
|
|
2132 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2133 | { |
|
|
2134 | if (!items) |
|
|
2135 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2136 | |
|
|
2137 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2138 | frame->prepare = slf_prepare_schedule_to; |
|
|
2139 | frame->check = slf_check_nop; |
|
|
2140 | } |
|
|
2141 | |
|
|
2142 | static void |
|
|
2143 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2144 | { |
|
|
2145 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2146 | |
|
|
2147 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2148 | } |
|
|
2149 | |
|
|
2150 | static void |
|
|
2151 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2152 | { |
|
|
2153 | frame->prepare = prepare_cede; |
|
|
2154 | frame->check = slf_check_nop; |
|
|
2155 | } |
|
|
2156 | |
|
|
2157 | static void |
|
|
2158 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2159 | { |
|
|
2160 | frame->prepare = prepare_cede_notself; |
|
|
2161 | frame->check = slf_check_nop; |
|
|
2162 | } |
|
|
2163 | |
|
|
2164 | /* |
|
|
2165 | * these not obviously related functions are all rolled into one |
|
|
2166 | * function to increase chances that they all will call transfer with the same |
|
|
2167 | * stack offset |
|
|
2168 | * SLF stands for "schedule-like-function". |
|
|
2169 | */ |
|
|
2170 | static OP * |
|
|
2171 | pp_slf (pTHX) |
|
|
2172 | { |
|
|
2173 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2174 | |
|
|
2175 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2176 | /* the latter happens when a new coro has been started */ |
|
|
2177 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2178 | if (expect_true (!slf_frame.prepare)) |
|
|
2179 | { |
|
|
2180 | /* first iteration */ |
|
|
2181 | dSP; |
|
|
2182 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2183 | int items = SP - arg; /* args without function object */ |
|
|
2184 | SV *gv = *sp; |
|
|
2185 | |
|
|
2186 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2187 | /* for us, divert to the real entersub */ |
|
|
2188 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2189 | || !GvCV (gv) |
|
|
2190 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2191 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2192 | |
|
|
2193 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2194 | { |
|
|
2195 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2196 | AV *av = GvAV (PL_defgv); |
|
|
2197 | arg = AvARRAY (av); |
|
|
2198 | items = AvFILLp (av) + 1; |
|
|
2199 | } |
|
|
2200 | |
|
|
2201 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2202 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2203 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2204 | |
|
|
2205 | /* pop args */ |
|
|
2206 | SP = PL_stack_base + POPMARK; |
|
|
2207 | |
|
|
2208 | PUTBACK; |
|
|
2209 | } |
|
|
2210 | |
|
|
2211 | /* now that we have a slf_frame, interpret it! */ |
|
|
2212 | /* we use a callback system not to make the code needlessly */ |
|
|
2213 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2214 | |
|
|
2215 | do |
|
|
2216 | { |
|
|
2217 | struct coro_transfer_args ta; |
|
|
2218 | |
|
|
2219 | slf_frame.prepare (aTHX_ &ta); |
|
|
2220 | TRANSFER (ta, 0); |
|
|
2221 | |
|
|
2222 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2223 | } |
|
|
2224 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2225 | |
|
|
2226 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2227 | |
|
|
2228 | /* exception handling */ |
|
|
2229 | if (expect_false (CORO_THROW)) |
|
|
2230 | { |
|
|
2231 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2232 | |
|
|
2233 | CORO_THROW = 0; |
|
|
2234 | sv_setsv (ERRSV, exception); |
|
|
2235 | croak (0); |
|
|
2236 | } |
|
|
2237 | |
|
|
2238 | /* return value handling - mostly like entersub */ |
|
|
2239 | /* make sure we put something on the stack in scalar context */ |
|
|
2240 | if (GIMME_V == G_SCALAR) |
|
|
2241 | { |
|
|
2242 | dSP; |
|
|
2243 | SV **bot = PL_stack_base + checkmark; |
|
|
2244 | |
|
|
2245 | if (sp == bot) /* too few, push undef */ |
|
|
2246 | bot [1] = &PL_sv_undef; |
|
|
2247 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2248 | bot [1] = *sp; |
|
|
2249 | |
|
|
2250 | SP = bot + 1; |
|
|
2251 | |
|
|
2252 | PUTBACK; |
|
|
2253 | } |
|
|
2254 | |
|
|
2255 | return NORMAL; |
|
|
2256 | } |
|
|
2257 | |
|
|
2258 | static void |
|
|
2259 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2260 | { |
|
|
2261 | int i; |
|
|
2262 | SV **arg = PL_stack_base + ax; |
|
|
2263 | int items = PL_stack_sp - arg + 1; |
|
|
2264 | |
|
|
2265 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2266 | |
|
|
2267 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2268 | && PL_op->op_ppaddr != pp_slf) |
|
|
2269 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2270 | |
|
|
2271 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2272 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2273 | slf_cv = cv; |
|
|
2274 | |
|
|
2275 | /* we patch the op, and then re-run the whole call */ |
|
|
2276 | /* we have to put the same argument on the stack for this to work */ |
|
|
2277 | /* and this will be done by pp_restore */ |
|
|
2278 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2279 | slf_restore.op_type = OP_CUSTOM; |
|
|
2280 | slf_restore.op_ppaddr = pp_restore; |
|
|
2281 | slf_restore.op_first = PL_op; |
|
|
2282 | |
|
|
2283 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2284 | |
|
|
2285 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2286 | { |
|
|
2287 | if (items > slf_arga) |
|
|
2288 | { |
|
|
2289 | slf_arga = items; |
|
|
2290 | free (slf_argv); |
|
|
2291 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2292 | } |
|
|
2293 | |
|
|
2294 | slf_argc = items; |
|
|
2295 | |
|
|
2296 | for (i = 0; i < items; ++i) |
|
|
2297 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2298 | } |
|
|
2299 | else |
|
|
2300 | slf_argc = 0; |
|
|
2301 | |
|
|
2302 | PL_op->op_ppaddr = pp_slf; |
|
|
2303 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2304 | |
|
|
2305 | PL_op = (OP *)&slf_restore; |
|
|
2306 | } |
|
|
2307 | |
|
|
2308 | /*****************************************************************************/ |
|
|
2309 | /* PerlIO::cede */ |
|
|
2310 | |
|
|
2311 | typedef struct |
|
|
2312 | { |
|
|
2313 | PerlIOBuf base; |
|
|
2314 | NV next, every; |
|
|
2315 | } PerlIOCede; |
|
|
2316 | |
|
|
2317 | static IV |
|
|
2318 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
2319 | { |
|
|
2320 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2321 | |
|
|
2322 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
2323 | self->next = nvtime () + self->every; |
|
|
2324 | |
|
|
2325 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
2326 | } |
|
|
2327 | |
|
|
2328 | static SV * |
|
|
2329 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
2330 | { |
|
|
2331 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2332 | |
|
|
2333 | return newSVnv (self->every); |
|
|
2334 | } |
|
|
2335 | |
|
|
2336 | static IV |
|
|
2337 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
2338 | { |
|
|
2339 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2340 | double now = nvtime (); |
|
|
2341 | |
|
|
2342 | if (now >= self->next) |
|
|
2343 | { |
|
|
2344 | api_cede (aTHX); |
|
|
2345 | self->next = now + self->every; |
|
|
2346 | } |
|
|
2347 | |
|
|
2348 | return PerlIOBuf_flush (aTHX_ f); |
|
|
2349 | } |
|
|
2350 | |
|
|
2351 | static PerlIO_funcs PerlIO_cede = |
|
|
2352 | { |
|
|
2353 | sizeof(PerlIO_funcs), |
|
|
2354 | "cede", |
|
|
2355 | sizeof(PerlIOCede), |
|
|
2356 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
2357 | PerlIOCede_pushed, |
|
|
2358 | PerlIOBuf_popped, |
|
|
2359 | PerlIOBuf_open, |
|
|
2360 | PerlIOBase_binmode, |
|
|
2361 | PerlIOCede_getarg, |
|
|
2362 | PerlIOBase_fileno, |
|
|
2363 | PerlIOBuf_dup, |
|
|
2364 | PerlIOBuf_read, |
|
|
2365 | PerlIOBuf_unread, |
|
|
2366 | PerlIOBuf_write, |
|
|
2367 | PerlIOBuf_seek, |
|
|
2368 | PerlIOBuf_tell, |
|
|
2369 | PerlIOBuf_close, |
|
|
2370 | PerlIOCede_flush, |
|
|
2371 | PerlIOBuf_fill, |
|
|
2372 | PerlIOBase_eof, |
|
|
2373 | PerlIOBase_error, |
|
|
2374 | PerlIOBase_clearerr, |
|
|
2375 | PerlIOBase_setlinebuf, |
|
|
2376 | PerlIOBuf_get_base, |
|
|
2377 | PerlIOBuf_bufsiz, |
|
|
2378 | PerlIOBuf_get_ptr, |
|
|
2379 | PerlIOBuf_get_cnt, |
|
|
2380 | PerlIOBuf_set_ptrcnt, |
|
|
2381 | }; |
|
|
2382 | |
|
|
2383 | /*****************************************************************************/ |
|
|
2384 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2385 | |
|
|
2386 | static SV * |
|
|
2387 | coro_waitarray_new (pTHX_ int count) |
|
|
2388 | { |
|
|
2389 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2390 | AV *av = newAV (); |
|
|
2391 | SV **ary; |
|
|
2392 | |
|
|
2393 | /* unfortunately, building manually saves memory */ |
|
|
2394 | Newx (ary, 2, SV *); |
|
|
2395 | AvALLOC (av) = ary; |
|
|
2396 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2397 | AvARRAY (av) = ary; |
|
|
2398 | #else |
|
|
2399 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2400 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2401 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2402 | #endif |
|
|
2403 | AvMAX (av) = 1; |
|
|
2404 | AvFILLp (av) = 0; |
|
|
2405 | ary [0] = newSViv (count); |
|
|
2406 | |
|
|
2407 | return newRV_noinc ((SV *)av); |
|
|
2408 | } |
|
|
2409 | |
|
|
2410 | /* semaphore */ |
|
|
2411 | |
|
|
2412 | static void |
|
|
2413 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2414 | { |
|
|
2415 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2416 | IV count = SvIVX (count_sv); |
|
|
2417 | |
|
|
2418 | count += adjust; |
|
|
2419 | SvIVX (count_sv) = count; |
|
|
2420 | |
|
|
2421 | /* now wake up as many waiters as are expected to lock */ |
|
|
2422 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2423 | { |
|
|
2424 | SV *cb; |
|
|
2425 | |
|
|
2426 | /* swap first two elements so we can shift a waiter */ |
|
|
2427 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2428 | AvARRAY (av)[1] = count_sv; |
|
|
2429 | cb = av_shift (av); |
|
|
2430 | |
|
|
2431 | if (SvOBJECT (cb)) |
|
|
2432 | { |
|
|
2433 | api_ready (aTHX_ cb); |
|
|
2434 | --count; |
|
|
2435 | } |
|
|
2436 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2437 | { |
|
|
2438 | dSP; |
|
|
2439 | PUSHMARK (SP); |
|
|
2440 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2441 | PUTBACK; |
|
|
2442 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2443 | } |
|
|
2444 | |
|
|
2445 | SvREFCNT_dec (cb); |
|
|
2446 | } |
|
|
2447 | } |
|
|
2448 | |
|
|
2449 | static void |
|
|
2450 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2451 | { |
|
|
2452 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2453 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2454 | } |
|
|
2455 | |
|
|
2456 | static int |
|
|
2457 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2458 | { |
|
|
2459 | AV *av = (AV *)frame->data; |
|
|
2460 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2461 | |
|
|
2462 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2463 | if (CORO_THROW) |
|
|
2464 | return 0; |
|
|
2465 | else if (SvIVX (count_sv) > 0) |
|
|
2466 | { |
|
|
2467 | SvSTATE_current->on_destroy = 0; |
|
|
2468 | |
|
|
2469 | if (acquire) |
|
|
2470 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2471 | else |
|
|
2472 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2473 | |
|
|
2474 | return 0; |
|
|
2475 | } |
|
|
2476 | else |
|
|
2477 | { |
|
|
2478 | int i; |
|
|
2479 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2480 | /* waiters list and only add us if we aren't in there already */ |
|
|
2481 | /* this avoids some degenerate memory usage cases */ |
|
|
2482 | |
|
|
2483 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2484 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2485 | return 1; |
|
|
2486 | |
|
|
2487 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2488 | return 1; |
|
|
2489 | } |
|
|
2490 | } |
|
|
2491 | |
|
|
2492 | static int |
|
|
2493 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2494 | { |
|
|
2495 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2496 | } |
|
|
2497 | |
|
|
2498 | static int |
|
|
2499 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2500 | { |
|
|
2501 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2502 | } |
|
|
2503 | |
|
|
2504 | static void |
|
|
2505 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2506 | { |
|
|
2507 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2508 | |
|
|
2509 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2510 | { |
|
|
2511 | frame->data = (void *)av; |
|
|
2512 | frame->prepare = prepare_nop; |
|
|
2513 | } |
|
|
2514 | else |
|
|
2515 | { |
|
|
2516 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2517 | |
|
|
2518 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2519 | frame->prepare = prepare_schedule; |
|
|
2520 | |
|
|
2521 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2522 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2523 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2524 | } |
|
|
2525 | } |
|
|
2526 | |
|
|
2527 | static void |
|
|
2528 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2529 | { |
|
|
2530 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2531 | frame->check = slf_check_semaphore_down; |
|
|
2532 | } |
|
|
2533 | |
|
|
2534 | static void |
|
|
2535 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2536 | { |
|
|
2537 | if (items >= 2) |
|
|
2538 | { |
|
|
2539 | /* callback form */ |
|
|
2540 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2541 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2542 | |
|
|
2543 | av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); |
|
|
2544 | |
|
|
2545 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2546 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2547 | |
|
|
2548 | frame->prepare = prepare_nop; |
|
|
2549 | frame->check = slf_check_nop; |
|
|
2550 | } |
|
|
2551 | else |
|
|
2552 | { |
|
|
2553 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2554 | frame->check = slf_check_semaphore_wait; |
|
|
2555 | } |
|
|
2556 | } |
|
|
2557 | |
|
|
2558 | /* signal */ |
|
|
2559 | |
|
|
2560 | static void |
|
|
2561 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2562 | { |
|
|
2563 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2564 | |
|
|
2565 | /* now signal count waiters */ |
|
|
2566 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2567 | { |
|
|
2568 | SV *cb; |
|
|
2569 | |
|
|
2570 | /* swap first two elements so we can shift a waiter */ |
|
|
2571 | cb = AvARRAY (av)[0]; |
|
|
2572 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2573 | AvARRAY (av)[1] = cb; |
|
|
2574 | |
|
|
2575 | cb = av_shift (av); |
|
|
2576 | |
|
|
2577 | api_ready (aTHX_ cb); |
|
|
2578 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2579 | SvREFCNT_dec (cb); |
|
|
2580 | |
|
|
2581 | --count; |
|
|
2582 | } |
|
|
2583 | } |
|
|
2584 | |
|
|
2585 | static int |
|
|
2586 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2587 | { |
|
|
2588 | /* if we are about to throw, also stop waiting */ |
|
|
2589 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2590 | } |
|
|
2591 | |
|
|
2592 | static void |
|
|
2593 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2594 | { |
|
|
2595 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2596 | |
|
|
2597 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2598 | { |
|
|
2599 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2600 | frame->prepare = prepare_nop; |
|
|
2601 | frame->check = slf_check_nop; |
|
|
2602 | } |
|
|
2603 | else |
|
|
2604 | { |
|
|
2605 | SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ |
|
|
2606 | |
|
|
2607 | av_push (av, waiter); |
|
|
2608 | |
|
|
2609 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2610 | frame->prepare = prepare_schedule; |
|
|
2611 | frame->check = slf_check_signal_wait; |
|
|
2612 | } |
|
|
2613 | } |
|
|
2614 | |
|
|
2615 | /*****************************************************************************/ |
|
|
2616 | /* Coro::AIO */ |
|
|
2617 | |
|
|
2618 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2619 | |
|
|
2620 | /* helper storage struct */ |
|
|
2621 | struct io_state |
|
|
2622 | { |
|
|
2623 | int errorno; |
|
|
2624 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2625 | int laststatval; |
|
|
2626 | Stat_t statcache; |
|
|
2627 | }; |
|
|
2628 | |
|
|
2629 | static void |
|
|
2630 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2631 | { |
|
|
2632 | dXSARGS; |
|
|
2633 | AV *state = (AV *)GENSUB_ARG; |
|
|
2634 | SV *coro = av_pop (state); |
|
|
2635 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2636 | |
|
|
2637 | av_extend (state, items - 1); |
|
|
2638 | |
|
|
2639 | sv_upgrade (data_sv, SVt_PV); |
|
|
2640 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2641 | SvPOK_only (data_sv); |
|
|
2642 | |
|
|
2643 | { |
|
|
2644 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2645 | |
|
|
2646 | data->errorno = errno; |
|
|
2647 | data->laststype = PL_laststype; |
|
|
2648 | data->laststatval = PL_laststatval; |
|
|
2649 | data->statcache = PL_statcache; |
|
|
2650 | } |
|
|
2651 | |
|
|
2652 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2653 | { |
|
|
2654 | int i; |
|
|
2655 | |
|
|
2656 | for (i = 0; i < items; ++i) |
|
|
2657 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2658 | } |
|
|
2659 | |
|
|
2660 | av_push (state, data_sv); |
|
|
2661 | |
|
|
2662 | api_ready (aTHX_ coro); |
|
|
2663 | SvREFCNT_dec (coro); |
|
|
2664 | SvREFCNT_dec ((AV *)state); |
|
|
2665 | } |
|
|
2666 | |
|
|
2667 | static int |
|
|
2668 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2669 | { |
|
|
2670 | AV *state = (AV *)frame->data; |
|
|
2671 | |
|
|
2672 | /* if we are about to throw, return early */ |
|
|
2673 | /* this does not cancel the aio request, but at least */ |
|
|
2674 | /* it quickly returns */ |
|
|
2675 | if (CORO_THROW) |
|
|
2676 | return 0; |
|
|
2677 | |
|
|
2678 | /* one element that is an RV? repeat! */ |
|
|
2679 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2680 | return 1; |
|
|
2681 | |
|
|
2682 | /* restore status */ |
|
|
2683 | { |
|
|
2684 | SV *data_sv = av_pop (state); |
|
|
2685 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2686 | |
|
|
2687 | errno = data->errorno; |
|
|
2688 | PL_laststype = data->laststype; |
|
|
2689 | PL_laststatval = data->laststatval; |
|
|
2690 | PL_statcache = data->statcache; |
|
|
2691 | |
|
|
2692 | SvREFCNT_dec (data_sv); |
|
|
2693 | } |
|
|
2694 | |
|
|
2695 | /* push result values */ |
|
|
2696 | { |
|
|
2697 | dSP; |
|
|
2698 | int i; |
|
|
2699 | |
|
|
2700 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2701 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2702 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2703 | |
|
|
2704 | PUTBACK; |
|
|
2705 | } |
|
|
2706 | |
|
|
2707 | return 0; |
|
|
2708 | } |
|
|
2709 | |
|
|
2710 | static void |
|
|
2711 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2712 | { |
|
|
2713 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2714 | SV *coro_hv = SvRV (coro_current); |
|
|
2715 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2716 | |
|
|
2717 | /* put our coroutine id on the state arg */ |
|
|
2718 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2719 | |
|
|
2720 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2721 | if (coro->prio) |
|
|
2722 | { |
|
|
2723 | dSP; |
|
|
2724 | |
|
|
2725 | static SV *prio_cv; |
|
|
2726 | static SV *prio_sv; |
|
|
2727 | |
|
|
2728 | if (expect_false (!prio_cv)) |
|
|
2729 | { |
|
|
2730 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2731 | prio_sv = newSViv (0); |
|
|
2732 | } |
|
|
2733 | |
|
|
2734 | PUSHMARK (SP); |
|
|
2735 | sv_setiv (prio_sv, coro->prio); |
|
|
2736 | XPUSHs (prio_sv); |
|
|
2737 | |
|
|
2738 | PUTBACK; |
|
|
2739 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2740 | } |
|
|
2741 | |
|
|
2742 | /* now call the original request */ |
|
|
2743 | { |
|
|
2744 | dSP; |
|
|
2745 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2746 | int i; |
|
|
2747 | |
|
|
2748 | PUSHMARK (SP); |
|
|
2749 | |
|
|
2750 | /* first push all args to the stack */ |
|
|
2751 | EXTEND (SP, items + 1); |
|
|
2752 | |
|
|
2753 | for (i = 0; i < items; ++i) |
|
|
2754 | PUSHs (arg [i]); |
|
|
2755 | |
|
|
2756 | /* now push the callback closure */ |
|
|
2757 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2758 | |
|
|
2759 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2760 | PUTBACK; |
|
|
2761 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2762 | } |
|
|
2763 | |
|
|
2764 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2765 | frame->data = (void *)state; |
|
|
2766 | frame->prepare = prepare_schedule; |
|
|
2767 | frame->check = slf_check_aio_req; |
|
|
2768 | } |
|
|
2769 | |
|
|
2770 | static void |
|
|
2771 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2772 | { |
|
|
2773 | dXSARGS; |
|
|
2774 | |
|
|
2775 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2776 | |
|
|
2777 | XSRETURN_EMPTY; |
|
|
2778 | } |
|
|
2779 | |
|
|
2780 | /*****************************************************************************/ |
|
|
2781 | |
|
|
2782 | #if CORO_CLONE |
|
|
2783 | # include "clone.c" |
|
|
2784 | #endif |
|
|
2785 | |
1550 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2786 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1551 | |
2787 | |
1552 | PROTOTYPES: DISABLE |
2788 | PROTOTYPES: DISABLE |
1553 | |
2789 | |
1554 | BOOT: |
2790 | BOOT: |
1555 | { |
2791 | { |
1556 | #ifdef USE_ITHREADS |
2792 | #ifdef USE_ITHREADS |
1557 | MUTEX_INIT (&coro_mutex); |
2793 | # if CORO_PTHREAD |
|
|
2794 | coro_thx = PERL_GET_CONTEXT; |
|
|
2795 | # endif |
1558 | #endif |
2796 | #endif |
1559 | BOOT_PAGESIZE; |
2797 | BOOT_PAGESIZE; |
|
|
2798 | |
|
|
2799 | cctx_current = cctx_new_empty (); |
1560 | |
2800 | |
1561 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2801 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1562 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2802 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1563 | |
2803 | |
1564 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; |
2804 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
1565 | PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
2805 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
1566 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; |
2806 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
1567 | PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
1568 | |
2807 | |
1569 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
2808 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
1570 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
2809 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
1571 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
2810 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1572 | |
2811 | |
… | |
… | |
1581 | main_top_env = PL_top_env; |
2820 | main_top_env = PL_top_env; |
1582 | |
2821 | |
1583 | while (main_top_env->je_prev) |
2822 | while (main_top_env->je_prev) |
1584 | main_top_env = main_top_env->je_prev; |
2823 | main_top_env = main_top_env->je_prev; |
1585 | |
2824 | |
|
|
2825 | { |
|
|
2826 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2827 | |
|
|
2828 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2829 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
2830 | |
|
|
2831 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2832 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
2833 | } |
|
|
2834 | |
1586 | coroapi.ver = CORO_API_VERSION; |
2835 | coroapi.ver = CORO_API_VERSION; |
1587 | coroapi.rev = CORO_API_REVISION; |
2836 | coroapi.rev = CORO_API_REVISION; |
|
|
2837 | |
1588 | coroapi.transfer = api_transfer; |
2838 | coroapi.transfer = api_transfer; |
|
|
2839 | |
|
|
2840 | coroapi.sv_state = SvSTATE_; |
|
|
2841 | coroapi.execute_slf = api_execute_slf; |
|
|
2842 | coroapi.prepare_nop = prepare_nop; |
|
|
2843 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2844 | coroapi.prepare_cede = prepare_cede; |
|
|
2845 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
2846 | |
|
|
2847 | { |
|
|
2848 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
2849 | |
|
|
2850 | if (!svp) croak ("Time::HiRes is required"); |
|
|
2851 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
2852 | |
|
|
2853 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
2854 | } |
1589 | |
2855 | |
1590 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2856 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1591 | } |
2857 | } |
1592 | |
2858 | |
1593 | SV * |
2859 | SV * |
1594 | new (char *klass, ...) |
2860 | new (char *klass, ...) |
|
|
2861 | ALIAS: |
|
|
2862 | Coro::new = 1 |
1595 | CODE: |
2863 | CODE: |
1596 | { |
2864 | { |
1597 | struct coro *coro; |
2865 | struct coro *coro; |
1598 | MAGIC *mg; |
2866 | MAGIC *mg; |
1599 | HV *hv; |
2867 | HV *hv; |
|
|
2868 | CV *cb; |
1600 | int i; |
2869 | int i; |
|
|
2870 | |
|
|
2871 | if (items > 1) |
|
|
2872 | { |
|
|
2873 | cb = coro_sv_2cv (aTHX_ ST (1)); |
|
|
2874 | |
|
|
2875 | if (!ix) |
|
|
2876 | { |
|
|
2877 | if (CvISXSUB (cb)) |
|
|
2878 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
2879 | |
|
|
2880 | if (!CvROOT (cb)) |
|
|
2881 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
2882 | } |
|
|
2883 | } |
1601 | |
2884 | |
1602 | Newz (0, coro, 1, struct coro); |
2885 | Newz (0, coro, 1, struct coro); |
1603 | coro->args = newAV (); |
2886 | coro->args = newAV (); |
1604 | coro->flags = CF_NEW; |
2887 | coro->flags = CF_NEW; |
1605 | |
2888 | |
… | |
… | |
1610 | coro->hv = hv = newHV (); |
2893 | coro->hv = hv = newHV (); |
1611 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2894 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
1612 | mg->mg_flags |= MGf_DUP; |
2895 | mg->mg_flags |= MGf_DUP; |
1613 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2896 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1614 | |
2897 | |
|
|
2898 | if (items > 1) |
|
|
2899 | { |
1615 | av_extend (coro->args, items - 1); |
2900 | av_extend (coro->args, items - 1 + ix - 1); |
|
|
2901 | |
|
|
2902 | if (ix) |
|
|
2903 | { |
|
|
2904 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
2905 | cb = cv_coro_run; |
|
|
2906 | } |
|
|
2907 | |
|
|
2908 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
2909 | |
1616 | for (i = 1; i < items; i++) |
2910 | for (i = 2; i < items; i++) |
1617 | av_push (coro->args, newSVsv (ST (i))); |
2911 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2912 | } |
1618 | } |
2913 | } |
1619 | OUTPUT: |
2914 | OUTPUT: |
1620 | RETVAL |
2915 | RETVAL |
1621 | |
2916 | |
1622 | # these not obviously related functions are all rolled into the same xs |
|
|
1623 | # function to increase chances that they all will call transfer with the same |
|
|
1624 | # stack offset |
|
|
1625 | void |
2917 | void |
1626 | _set_stacklevel (...) |
2918 | transfer (...) |
1627 | ALIAS: |
2919 | PROTOTYPE: $$ |
1628 | Coro::State::transfer = 1 |
2920 | CODE: |
1629 | Coro::schedule = 2 |
2921 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1630 | Coro::cede = 3 |
|
|
1631 | Coro::cede_notself = 4 |
|
|
1632 | CODE: |
|
|
1633 | { |
|
|
1634 | struct transfer_args ta; |
|
|
1635 | |
|
|
1636 | PUTBACK; |
|
|
1637 | switch (ix) |
|
|
1638 | { |
|
|
1639 | case 0: |
|
|
1640 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1641 | ta.next = 0; |
|
|
1642 | break; |
|
|
1643 | |
|
|
1644 | case 1: |
|
|
1645 | if (items != 2) |
|
|
1646 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1647 | |
|
|
1648 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1649 | break; |
|
|
1650 | |
|
|
1651 | case 2: |
|
|
1652 | prepare_schedule (aTHX_ &ta); |
|
|
1653 | break; |
|
|
1654 | |
|
|
1655 | case 3: |
|
|
1656 | prepare_cede (aTHX_ &ta); |
|
|
1657 | break; |
|
|
1658 | |
|
|
1659 | case 4: |
|
|
1660 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1661 | XSRETURN_EMPTY; |
|
|
1662 | |
|
|
1663 | break; |
|
|
1664 | } |
|
|
1665 | SPAGAIN; |
|
|
1666 | |
|
|
1667 | BARRIER; |
|
|
1668 | PUTBACK; |
|
|
1669 | TRANSFER (ta, 0); |
|
|
1670 | SPAGAIN; /* might be the sp of a different coroutine now */ |
|
|
1671 | /* be extra careful not to ever do anything after TRANSFER */ |
|
|
1672 | } |
|
|
1673 | |
2922 | |
1674 | bool |
2923 | bool |
1675 | _destroy (SV *coro_sv) |
2924 | _destroy (SV *coro_sv) |
1676 | CODE: |
2925 | CODE: |
1677 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2926 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1678 | OUTPUT: |
2927 | OUTPUT: |
1679 | RETVAL |
2928 | RETVAL |
1680 | |
2929 | |
1681 | void |
2930 | void |
1682 | _exit (code) |
2931 | _exit (int code) |
1683 | int code |
|
|
1684 | PROTOTYPE: $ |
2932 | PROTOTYPE: $ |
1685 | CODE: |
2933 | CODE: |
1686 | _exit (code); |
2934 | _exit (code); |
1687 | |
2935 | |
|
|
2936 | SV * |
|
|
2937 | clone (Coro::State coro) |
|
|
2938 | CODE: |
|
|
2939 | { |
|
|
2940 | #if CORO_CLONE |
|
|
2941 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
2942 | MAGIC *mg; |
|
|
2943 | /* TODO: too much duplication */ |
|
|
2944 | ncoro->hv = newHV (); |
|
|
2945 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
2946 | mg->mg_flags |= MGf_DUP; |
|
|
2947 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
2948 | #else |
|
|
2949 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
2950 | #endif |
|
|
2951 | } |
|
|
2952 | OUTPUT: |
|
|
2953 | RETVAL |
|
|
2954 | |
1688 | int |
2955 | int |
1689 | cctx_stacksize (int new_stacksize = 0) |
2956 | cctx_stacksize (int new_stacksize = 0) |
|
|
2957 | PROTOTYPE: ;$ |
1690 | CODE: |
2958 | CODE: |
1691 | RETVAL = coro_stacksize; |
2959 | RETVAL = cctx_stacksize; |
1692 | if (new_stacksize) |
2960 | if (new_stacksize) |
|
|
2961 | { |
1693 | coro_stacksize = new_stacksize; |
2962 | cctx_stacksize = new_stacksize; |
|
|
2963 | ++cctx_gen; |
|
|
2964 | } |
1694 | OUTPUT: |
2965 | OUTPUT: |
1695 | RETVAL |
2966 | RETVAL |
1696 | |
2967 | |
1697 | int |
2968 | int |
|
|
2969 | cctx_max_idle (int max_idle = 0) |
|
|
2970 | PROTOTYPE: ;$ |
|
|
2971 | CODE: |
|
|
2972 | RETVAL = cctx_max_idle; |
|
|
2973 | if (max_idle > 1) |
|
|
2974 | cctx_max_idle = max_idle; |
|
|
2975 | OUTPUT: |
|
|
2976 | RETVAL |
|
|
2977 | |
|
|
2978 | int |
1698 | cctx_count () |
2979 | cctx_count () |
|
|
2980 | PROTOTYPE: |
1699 | CODE: |
2981 | CODE: |
1700 | RETVAL = cctx_count; |
2982 | RETVAL = cctx_count; |
1701 | OUTPUT: |
2983 | OUTPUT: |
1702 | RETVAL |
2984 | RETVAL |
1703 | |
2985 | |
1704 | int |
2986 | int |
1705 | cctx_idle () |
2987 | cctx_idle () |
|
|
2988 | PROTOTYPE: |
1706 | CODE: |
2989 | CODE: |
1707 | RETVAL = cctx_idle; |
2990 | RETVAL = cctx_idle; |
1708 | OUTPUT: |
2991 | OUTPUT: |
1709 | RETVAL |
2992 | RETVAL |
1710 | |
2993 | |
1711 | void |
2994 | void |
1712 | list () |
2995 | list () |
|
|
2996 | PROTOTYPE: |
1713 | PPCODE: |
2997 | PPCODE: |
1714 | { |
2998 | { |
1715 | struct coro *coro; |
2999 | struct coro *coro; |
1716 | for (coro = coro_first; coro; coro = coro->next) |
3000 | for (coro = coro_first; coro; coro = coro->next) |
1717 | if (coro->hv) |
3001 | if (coro->hv) |
… | |
… | |
1722 | call (Coro::State coro, SV *coderef) |
3006 | call (Coro::State coro, SV *coderef) |
1723 | ALIAS: |
3007 | ALIAS: |
1724 | eval = 1 |
3008 | eval = 1 |
1725 | CODE: |
3009 | CODE: |
1726 | { |
3010 | { |
1727 | if (coro->mainstack) |
3011 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1728 | { |
3012 | { |
1729 | struct coro temp; |
3013 | struct coro temp; |
1730 | |
3014 | |
1731 | if (!(coro->flags & CF_RUNNING)) |
3015 | if (!(coro->flags & CF_RUNNING)) |
1732 | { |
3016 | { |
… | |
… | |
1776 | RETVAL = boolSV (coro->flags & ix); |
3060 | RETVAL = boolSV (coro->flags & ix); |
1777 | OUTPUT: |
3061 | OUTPUT: |
1778 | RETVAL |
3062 | RETVAL |
1779 | |
3063 | |
1780 | void |
3064 | void |
|
|
3065 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
3066 | PROTOTYPE: $;$ |
|
|
3067 | CODE: |
|
|
3068 | { |
|
|
3069 | struct coro *current = SvSTATE_current; |
|
|
3070 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
|
|
3071 | SvREFCNT_dec (*throwp); |
|
|
3072 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
3073 | } |
|
|
3074 | |
|
|
3075 | void |
1781 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3076 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3077 | PROTOTYPE: $;$ |
|
|
3078 | C_ARGS: aTHX_ coro, flags |
1782 | |
3079 | |
1783 | SV * |
3080 | SV * |
1784 | has_stack (Coro::State coro) |
3081 | has_cctx (Coro::State coro) |
1785 | PROTOTYPE: $ |
3082 | PROTOTYPE: $ |
1786 | CODE: |
3083 | CODE: |
1787 | RETVAL = boolSV (!!coro->cctx); |
3084 | /* maybe manage the running flag differently */ |
|
|
3085 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
1788 | OUTPUT: |
3086 | OUTPUT: |
1789 | RETVAL |
3087 | RETVAL |
1790 | |
3088 | |
1791 | int |
3089 | int |
1792 | is_traced (Coro::State coro) |
3090 | is_traced (Coro::State coro) |
… | |
… | |
1794 | CODE: |
3092 | CODE: |
1795 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
3093 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1796 | OUTPUT: |
3094 | OUTPUT: |
1797 | RETVAL |
3095 | RETVAL |
1798 | |
3096 | |
1799 | IV |
3097 | UV |
1800 | rss (Coro::State coro) |
3098 | rss (Coro::State coro) |
1801 | PROTOTYPE: $ |
3099 | PROTOTYPE: $ |
1802 | ALIAS: |
3100 | ALIAS: |
1803 | usecount = 1 |
3101 | usecount = 1 |
1804 | CODE: |
3102 | CODE: |
… | |
… | |
1810 | OUTPUT: |
3108 | OUTPUT: |
1811 | RETVAL |
3109 | RETVAL |
1812 | |
3110 | |
1813 | void |
3111 | void |
1814 | force_cctx () |
3112 | force_cctx () |
|
|
3113 | PROTOTYPE: |
1815 | CODE: |
3114 | CODE: |
1816 | struct coro *coro = SvSTATE (coro_current); |
|
|
1817 | coro->cctx->idle_sp = 0; |
3115 | cctx_current->idle_sp = 0; |
|
|
3116 | |
|
|
3117 | void |
|
|
3118 | swap_defsv (Coro::State self) |
|
|
3119 | PROTOTYPE: $ |
|
|
3120 | ALIAS: |
|
|
3121 | swap_defav = 1 |
|
|
3122 | CODE: |
|
|
3123 | if (!self->slot) |
|
|
3124 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
3125 | else |
|
|
3126 | { |
|
|
3127 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
3128 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
3129 | |
|
|
3130 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
3131 | } |
|
|
3132 | |
1818 | |
3133 | |
1819 | MODULE = Coro::State PACKAGE = Coro |
3134 | MODULE = Coro::State PACKAGE = Coro |
1820 | |
3135 | |
1821 | BOOT: |
3136 | BOOT: |
1822 | { |
3137 | { |
1823 | int i; |
3138 | int i; |
1824 | |
3139 | |
1825 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
3140 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
1826 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
3141 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
3142 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
3143 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
|
|
3144 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
1827 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
3145 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3146 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3147 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3148 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
1828 | |
3149 | |
1829 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
3150 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
1830 | SvREADONLY_on (coro_current); |
3151 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3152 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3153 | cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); |
1831 | |
3154 | |
1832 | coro_stash = gv_stashpv ("Coro", TRUE); |
3155 | coro_stash = gv_stashpv ("Coro", TRUE); |
1833 | |
3156 | |
1834 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3157 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1835 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3158 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
… | |
… | |
1840 | |
3163 | |
1841 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
3164 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1842 | coro_ready[i] = newAV (); |
3165 | coro_ready[i] = newAV (); |
1843 | |
3166 | |
1844 | { |
3167 | { |
1845 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
3168 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1846 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
1847 | |
3169 | |
1848 | coroapi.schedule = api_schedule; |
3170 | coroapi.schedule = api_schedule; |
|
|
3171 | coroapi.schedule_to = api_schedule_to; |
1849 | coroapi.cede = api_cede; |
3172 | coroapi.cede = api_cede; |
1850 | coroapi.cede_notself = api_cede_notself; |
3173 | coroapi.cede_notself = api_cede_notself; |
1851 | coroapi.ready = api_ready; |
3174 | coroapi.ready = api_ready; |
1852 | coroapi.is_ready = api_is_ready; |
3175 | coroapi.is_ready = api_is_ready; |
1853 | coroapi.nready = &coro_nready; |
3176 | coroapi.nready = coro_nready; |
1854 | coroapi.current = coro_current; |
3177 | coroapi.current = coro_current; |
1855 | |
3178 | |
1856 | GCoroAPI = &coroapi; |
3179 | /*GCoroAPI = &coroapi;*/ |
1857 | sv_setiv (sv, (IV)&coroapi); |
3180 | sv_setiv (sv, (IV)&coroapi); |
1858 | SvREADONLY_on (sv); |
3181 | SvREADONLY_on (sv); |
1859 | } |
3182 | } |
1860 | } |
3183 | } |
|
|
3184 | |
|
|
3185 | void |
|
|
3186 | terminate (...) |
|
|
3187 | CODE: |
|
|
3188 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3189 | |
|
|
3190 | void |
|
|
3191 | schedule (...) |
|
|
3192 | CODE: |
|
|
3193 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3194 | |
|
|
3195 | void |
|
|
3196 | schedule_to (...) |
|
|
3197 | CODE: |
|
|
3198 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3199 | |
|
|
3200 | void |
|
|
3201 | cede_to (...) |
|
|
3202 | CODE: |
|
|
3203 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3204 | |
|
|
3205 | void |
|
|
3206 | cede (...) |
|
|
3207 | CODE: |
|
|
3208 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3209 | |
|
|
3210 | void |
|
|
3211 | cede_notself (...) |
|
|
3212 | CODE: |
|
|
3213 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
|
|
3214 | |
|
|
3215 | void |
|
|
3216 | _cancel (Coro::State self) |
|
|
3217 | CODE: |
|
|
3218 | coro_state_destroy (aTHX_ self); |
|
|
3219 | coro_call_on_destroy (aTHX_ self); |
1861 | |
3220 | |
1862 | void |
3221 | void |
1863 | _set_current (SV *current) |
3222 | _set_current (SV *current) |
1864 | PROTOTYPE: $ |
3223 | PROTOTYPE: $ |
1865 | CODE: |
3224 | CODE: |
1866 | SvREFCNT_dec (SvRV (coro_current)); |
3225 | SvREFCNT_dec (SvRV (coro_current)); |
1867 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
3226 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
3227 | |
|
|
3228 | void |
|
|
3229 | _set_readyhook (SV *hook) |
|
|
3230 | PROTOTYPE: $ |
|
|
3231 | CODE: |
|
|
3232 | SvREFCNT_dec (coro_readyhook); |
|
|
3233 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
1868 | |
3234 | |
1869 | int |
3235 | int |
1870 | prio (Coro::State coro, int newprio = 0) |
3236 | prio (Coro::State coro, int newprio = 0) |
|
|
3237 | PROTOTYPE: $;$ |
1871 | ALIAS: |
3238 | ALIAS: |
1872 | nice = 1 |
3239 | nice = 1 |
1873 | CODE: |
3240 | CODE: |
1874 | { |
3241 | { |
1875 | RETVAL = coro->prio; |
3242 | RETVAL = coro->prio; |
… | |
… | |
1890 | |
3257 | |
1891 | SV * |
3258 | SV * |
1892 | ready (SV *self) |
3259 | ready (SV *self) |
1893 | PROTOTYPE: $ |
3260 | PROTOTYPE: $ |
1894 | CODE: |
3261 | CODE: |
1895 | RETVAL = boolSV (api_ready (self)); |
3262 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1896 | OUTPUT: |
3263 | OUTPUT: |
1897 | RETVAL |
3264 | RETVAL |
1898 | |
3265 | |
1899 | int |
3266 | int |
1900 | nready (...) |
3267 | nready (...) |
… | |
… | |
1903 | RETVAL = coro_nready; |
3270 | RETVAL = coro_nready; |
1904 | OUTPUT: |
3271 | OUTPUT: |
1905 | RETVAL |
3272 | RETVAL |
1906 | |
3273 | |
1907 | void |
3274 | void |
1908 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3275 | _pool_handler (...) |
|
|
3276 | CODE: |
|
|
3277 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
|
|
3278 | |
|
|
3279 | void |
|
|
3280 | async_pool (SV *cv, ...) |
1909 | PROTOTYPE: $;$ |
3281 | PROTOTYPE: &@ |
|
|
3282 | PPCODE: |
|
|
3283 | { |
|
|
3284 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3285 | AV *av = newAV (); |
|
|
3286 | SV *cb = ST (0); |
|
|
3287 | int i; |
|
|
3288 | |
|
|
3289 | av_extend (av, items - 2); |
|
|
3290 | for (i = 1; i < items; ++i) |
|
|
3291 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
|
|
3292 | |
|
|
3293 | if ((SV *)hv == &PL_sv_undef) |
|
|
3294 | { |
|
|
3295 | PUSHMARK (SP); |
|
|
3296 | EXTEND (SP, 2); |
|
|
3297 | PUSHs (sv_Coro); |
|
|
3298 | PUSHs ((SV *)cv_pool_handler); |
|
|
3299 | PUTBACK; |
|
|
3300 | call_sv ((SV *)cv_coro_state_new, G_SCALAR); |
|
|
3301 | SPAGAIN; |
|
|
3302 | |
|
|
3303 | hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); |
|
|
3304 | } |
|
|
3305 | |
|
|
3306 | { |
|
|
3307 | struct coro *coro = SvSTATE_hv (hv); |
|
|
3308 | |
|
|
3309 | assert (!coro->invoke_cb); |
|
|
3310 | assert (!coro->invoke_av); |
|
|
3311 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3312 | coro->invoke_av = av; |
|
|
3313 | } |
|
|
3314 | |
|
|
3315 | api_ready (aTHX_ (SV *)hv); |
|
|
3316 | |
|
|
3317 | if (GIMME_V != G_VOID) |
|
|
3318 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3319 | else |
|
|
3320 | SvREFCNT_dec (hv); |
|
|
3321 | } |
|
|
3322 | |
|
|
3323 | SV * |
|
|
3324 | rouse_cb () |
|
|
3325 | PROTOTYPE: |
|
|
3326 | CODE: |
|
|
3327 | RETVAL = coro_new_rouse_cb (aTHX); |
|
|
3328 | OUTPUT: |
|
|
3329 | RETVAL |
|
|
3330 | |
|
|
3331 | void |
|
|
3332 | rouse_wait (...) |
|
|
3333 | PROTOTYPE: ;$ |
|
|
3334 | PPCODE: |
|
|
3335 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
3336 | |
|
|
3337 | |
|
|
3338 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
3339 | |
|
|
3340 | BOOT: |
|
|
3341 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
3342 | |
|
|
3343 | |
|
|
3344 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
3345 | |
|
|
3346 | SV * |
|
|
3347 | new (SV *klass, SV *count = 0) |
|
|
3348 | CODE: |
|
|
3349 | RETVAL = sv_bless ( |
|
|
3350 | coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), |
|
|
3351 | GvSTASH (CvGV (cv)) |
|
|
3352 | ); |
|
|
3353 | OUTPUT: |
|
|
3354 | RETVAL |
|
|
3355 | |
|
|
3356 | # helper for Coro::Channel |
|
|
3357 | SV * |
|
|
3358 | _alloc (int count) |
|
|
3359 | CODE: |
|
|
3360 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3361 | OUTPUT: |
|
|
3362 | RETVAL |
|
|
3363 | |
|
|
3364 | SV * |
|
|
3365 | count (SV *self) |
|
|
3366 | CODE: |
|
|
3367 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3368 | OUTPUT: |
|
|
3369 | RETVAL |
|
|
3370 | |
|
|
3371 | void |
|
|
3372 | up (SV *self, int adjust = 1) |
|
|
3373 | ALIAS: |
|
|
3374 | adjust = 1 |
1910 | CODE: |
3375 | CODE: |
1911 | SvREFCNT_dec (self->throw); |
3376 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
1912 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1913 | |
3377 | |
1914 | void |
3378 | void |
1915 | swap_defsv (Coro::State self) |
3379 | down (...) |
1916 | PROTOTYPE: $ |
|
|
1917 | ALIAS: |
|
|
1918 | swap_defav = 1 |
|
|
1919 | CODE: |
3380 | CODE: |
1920 | if (!self->slot) |
3381 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
1921 | croak ("cannot swap state with coroutine that has no saved state"); |
3382 | |
|
|
3383 | void |
|
|
3384 | wait (...) |
|
|
3385 | CODE: |
|
|
3386 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3387 | |
|
|
3388 | void |
|
|
3389 | try (SV *self) |
|
|
3390 | PPCODE: |
|
|
3391 | { |
|
|
3392 | AV *av = (AV *)SvRV (self); |
|
|
3393 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3394 | IV count = SvIVX (count_sv); |
|
|
3395 | |
|
|
3396 | if (count > 0) |
|
|
3397 | { |
|
|
3398 | --count; |
|
|
3399 | SvIVX (count_sv) = count; |
|
|
3400 | XSRETURN_YES; |
|
|
3401 | } |
|
|
3402 | else |
|
|
3403 | XSRETURN_NO; |
|
|
3404 | } |
|
|
3405 | |
|
|
3406 | void |
|
|
3407 | waiters (SV *self) |
|
|
3408 | PPCODE: |
|
|
3409 | { |
|
|
3410 | AV *av = (AV *)SvRV (self); |
|
|
3411 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3412 | |
|
|
3413 | if (GIMME_V == G_SCALAR) |
|
|
3414 | XPUSHs (sv_2mortal (newSViv (wcount))); |
1922 | else |
3415 | else |
1923 | { |
3416 | { |
1924 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
3417 | int i; |
1925 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
3418 | EXTEND (SP, wcount); |
1926 | |
3419 | for (i = 1; i <= wcount; ++i) |
1927 | SV *tmp = *src; *src = *dst; *dst = tmp; |
3420 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
1928 | } |
3421 | } |
|
|
3422 | } |
1929 | |
3423 | |
1930 | # for async_pool speedup |
3424 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3425 | |
|
|
3426 | SV * |
|
|
3427 | new (SV *klass) |
|
|
3428 | CODE: |
|
|
3429 | RETVAL = sv_bless ( |
|
|
3430 | coro_waitarray_new (aTHX_ 0), |
|
|
3431 | GvSTASH (CvGV (cv)) |
|
|
3432 | ); |
|
|
3433 | OUTPUT: |
|
|
3434 | RETVAL |
|
|
3435 | |
1931 | void |
3436 | void |
1932 | _pool_1 (SV *cb) |
3437 | wait (...) |
1933 | CODE: |
3438 | CODE: |
1934 | { |
3439 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
1935 | struct coro *coro = SvSTATE (coro_current); |
|
|
1936 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1937 | AV *defav = GvAV (PL_defgv); |
|
|
1938 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1939 | AV *invoke_av; |
|
|
1940 | int i, len; |
|
|
1941 | |
|
|
1942 | if (!invoke) |
|
|
1943 | { |
|
|
1944 | SvREFCNT_dec (PL_diehook); PL_diehook = 0; |
|
|
1945 | croak ("\3async_pool terminate\2\n"); |
|
|
1946 | } |
|
|
1947 | |
|
|
1948 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1949 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
|
|
1950 | |
|
|
1951 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1952 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1953 | |
|
|
1954 | invoke_av = (AV *)SvRV (invoke); |
|
|
1955 | len = av_len (invoke_av); |
|
|
1956 | |
|
|
1957 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1958 | |
|
|
1959 | if (len > 0) |
|
|
1960 | { |
|
|
1961 | av_fill (defav, len - 1); |
|
|
1962 | for (i = 0; i < len; ++i) |
|
|
1963 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1964 | } |
|
|
1965 | |
|
|
1966 | SvREFCNT_dec (invoke); |
|
|
1967 | } |
|
|
1968 | |
3440 | |
1969 | void |
3441 | void |
1970 | _pool_2 (SV *cb) |
3442 | broadcast (SV *self) |
|
|
3443 | CODE: |
|
|
3444 | { |
|
|
3445 | AV *av = (AV *)SvRV (self); |
|
|
3446 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3447 | } |
|
|
3448 | |
|
|
3449 | void |
|
|
3450 | send (SV *self) |
|
|
3451 | CODE: |
|
|
3452 | { |
|
|
3453 | AV *av = (AV *)SvRV (self); |
|
|
3454 | |
|
|
3455 | if (AvFILLp (av)) |
|
|
3456 | coro_signal_wake (aTHX_ av, 1); |
|
|
3457 | else |
|
|
3458 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
3459 | } |
|
|
3460 | |
|
|
3461 | IV |
|
|
3462 | awaited (SV *self) |
1971 | CODE: |
3463 | CODE: |
1972 | { |
3464 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
1973 | struct coro *coro = SvSTATE (coro_current); |
|
|
1974 | |
|
|
1975 | sv_setsv (cb, &PL_sv_undef); |
|
|
1976 | |
|
|
1977 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1978 | coro->saved_deffh = 0; |
|
|
1979 | |
|
|
1980 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1981 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1982 | { |
|
|
1983 | SvREFCNT_dec (PL_diehook); PL_diehook = 0; |
|
|
1984 | croak ("\3async_pool terminate\2\n"); |
|
|
1985 | } |
|
|
1986 | |
|
|
1987 | av_clear (GvAV (PL_defgv)); |
|
|
1988 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1989 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1990 | |
|
|
1991 | coro->prio = 0; |
|
|
1992 | |
|
|
1993 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1994 | api_trace (coro_current, 0); |
|
|
1995 | |
|
|
1996 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1997 | } |
|
|
1998 | |
|
|
1999 | |
|
|
2000 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2001 | |
|
|
2002 | SV * |
|
|
2003 | _get_state () |
|
|
2004 | CODE: |
|
|
2005 | { |
|
|
2006 | struct io_state *data; |
|
|
2007 | |
|
|
2008 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
2009 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
2010 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
2011 | SvPOK_only (RETVAL); |
|
|
2012 | |
|
|
2013 | data->errorno = errno; |
|
|
2014 | data->laststype = PL_laststype; |
|
|
2015 | data->laststatval = PL_laststatval; |
|
|
2016 | data->statcache = PL_statcache; |
|
|
2017 | } |
|
|
2018 | OUTPUT: |
3465 | OUTPUT: |
2019 | RETVAL |
3466 | RETVAL |
2020 | |
3467 | |
|
|
3468 | |
|
|
3469 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
3470 | |
|
|
3471 | BOOT: |
|
|
3472 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
3473 | |
2021 | void |
3474 | void |
2022 | _set_state (char *data_) |
3475 | _schedule (...) |
2023 | PROTOTYPE: $ |
|
|
2024 | CODE: |
3476 | CODE: |
2025 | { |
3477 | { |
2026 | struct io_state *data = (void *)data_; |
3478 | static int incede; |
2027 | |
3479 | |
2028 | errno = data->errorno; |
3480 | api_cede_notself (aTHX); |
2029 | PL_laststype = data->laststype; |
|
|
2030 | PL_laststatval = data->laststatval; |
|
|
2031 | PL_statcache = data->statcache; |
|
|
2032 | } |
|
|
2033 | |
3481 | |
|
|
3482 | ++incede; |
|
|
3483 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
3484 | ; |
|
|
3485 | |
|
|
3486 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
3487 | if (coro_nready >= incede) |
|
|
3488 | { |
|
|
3489 | PUSHMARK (SP); |
|
|
3490 | PUTBACK; |
|
|
3491 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3492 | } |
|
|
3493 | |
|
|
3494 | --incede; |
|
|
3495 | } |
|
|
3496 | |
|
|
3497 | |
|
|
3498 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
3499 | |
|
|
3500 | void |
|
|
3501 | _register (char *target, char *proto, SV *req) |
|
|
3502 | CODE: |
|
|
3503 | { |
|
|
3504 | CV *req_cv = coro_sv_2cv (aTHX_ req); |
|
|
3505 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3506 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3507 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3508 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3509 | } |
|
|
3510 | |