… | |
… | |
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, don't ask |
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22 | #else |
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23 | # include <inttypes.h> /* most portable stdint.h */ |
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24 | #endif |
15 | |
25 | |
16 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
17 | # include <unistd.h> |
27 | # include <unistd.h> |
18 | # include <sys/mman.h> |
28 | # include <sys/mman.h> |
19 | # ifndef MAP_ANONYMOUS |
29 | # ifndef MAP_ANONYMOUS |
… | |
… | |
36 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
37 | #endif |
47 | #endif |
38 | |
48 | |
39 | #if CORO_USE_VALGRIND |
49 | #if CORO_USE_VALGRIND |
40 | # include <valgrind/valgrind.h> |
50 | # include <valgrind/valgrind.h> |
41 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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42 | #else |
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43 | # define REGISTER_STACK(cctx,start,end) |
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44 | #endif |
51 | #endif |
45 | |
52 | |
46 | /* the maximum number of idle cctx that will be pooled */ |
53 | /* the maximum number of idle cctx that will be pooled */ |
47 | #define MAX_IDLE_CCTX 8 |
54 | static int cctx_max_idle = 4; |
48 | |
55 | |
49 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
50 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
51 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
52 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
… | |
… | |
71 | # ifndef IS_PADCONST |
78 | # ifndef IS_PADCONST |
72 | # define IS_PADCONST(v) 0 |
79 | # define IS_PADCONST(v) 0 |
73 | # endif |
80 | # endif |
74 | #endif |
81 | #endif |
75 | |
82 | |
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83 | /* 5.11 */ |
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84 | #ifndef CxHASARGS |
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85 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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86 | #endif |
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87 | |
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88 | /* 5.10.0 */ |
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89 | #ifndef SvREFCNT_inc_NN |
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90 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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91 | #endif |
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92 | |
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93 | /* 5.8.8 */ |
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94 | #ifndef GV_NOTQUAL |
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95 | # define GV_NOTQUAL 0 |
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96 | #endif |
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97 | #ifndef newSV |
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98 | # define newSV(l) NEWSV(0,l) |
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99 | #endif |
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100 | #ifndef CvISXSUB_on |
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101 | # define CvISXSUB_on(cv) (void)cv |
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102 | #endif |
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103 | |
76 | /* 5.8.7 */ |
104 | /* 5.8.7 */ |
77 | #ifndef SvRV_set |
105 | #ifndef SvRV_set |
78 | # define SvRV_set(s,v) SvRV(s) = (v) |
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
79 | #endif |
107 | #endif |
80 | |
108 | |
81 | /* 5.8.8 */ |
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82 | #ifndef GV_NOTQUAL |
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83 | # define GV_NOTQUAL 0 |
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84 | #endif |
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85 | #ifndef newSV |
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86 | # define newSV(l) NEWSV(0,l) |
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87 | #endif |
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88 | |
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89 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
109 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
90 | # undef CORO_STACKGUARD |
110 | # undef CORO_STACKGUARD |
91 | #endif |
111 | #endif |
92 | |
112 | |
93 | #ifndef CORO_STACKGUARD |
113 | #ifndef CORO_STACKGUARD |
… | |
… | |
99 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
100 | #endif |
120 | #endif |
101 | |
121 | |
102 | /* The next macros try to return the current stack pointer, in an as |
122 | /* The next macros try to return the current stack pointer, in an as |
103 | * portable way as possible. */ |
123 | * portable way as possible. */ |
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124 | #if __GNUC__ >= 4 |
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125 | # define dSTACKLEVEL int stacklevel_dummy |
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126 | # define STACKLEVEL __builtin_frame_address (0) |
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127 | #else |
104 | #define dSTACKLEVEL volatile char stacklevel |
128 | # define dSTACKLEVEL volatile void *stacklevel |
105 | #define STACKLEVEL ((void *)&stacklevel) |
129 | # define STACKLEVEL ((void *)&stacklevel) |
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130 | #endif |
106 | |
131 | |
107 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
132 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
108 | |
133 | |
109 | #if __GNUC__ >= 3 |
134 | #if __GNUC__ >= 3 |
110 | # define attribute(x) __attribute__(x) |
135 | # define attribute(x) __attribute__(x) |
111 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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112 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
136 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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137 | # define INLINE static inline |
113 | #else |
138 | #else |
114 | # define attribute(x) |
139 | # define attribute(x) |
115 | # define BARRIER |
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116 | # define expect(expr,value) (expr) |
140 | # define expect(expr,value) (expr) |
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141 | # define INLINE static |
117 | #endif |
142 | #endif |
118 | |
143 | |
119 | #define expect_false(expr) expect ((expr) != 0, 0) |
144 | #define expect_false(expr) expect ((expr) != 0, 0) |
120 | #define expect_true(expr) expect ((expr) != 0, 1) |
145 | #define expect_true(expr) expect ((expr) != 0, 1) |
121 | |
146 | |
122 | #define NOINLINE attribute ((noinline)) |
147 | #define NOINLINE attribute ((noinline)) |
123 | |
148 | |
124 | #include "CoroAPI.h" |
149 | #include "CoroAPI.h" |
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150 | #define GCoroAPI (&coroapi) /* very sneaky */ |
125 | |
151 | |
126 | #ifdef USE_ITHREADS |
152 | #ifdef USE_ITHREADS |
127 | static perl_mutex coro_mutex; |
153 | # if CORO_PTHREAD |
128 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
154 | static void *coro_thx; |
129 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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130 | #else |
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131 | # define LOCK (void)0 |
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132 | # define UNLOCK (void)0 |
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133 | #endif |
155 | # endif |
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156 | #endif |
134 | |
157 | |
135 | #define strpair(const) const, sizeof (const) - 1 |
158 | static double (*nvtime)(); /* so why doesn't it take void? */ |
136 | |
159 | |
137 | /* helper storage struct for Coro::AIO */ |
160 | /* we hijack an hopefully unused CV flag for our purposes */ |
138 | struct io_state |
161 | #define CVf_SLF 0x4000 |
139 | { |
162 | static OP *pp_slf (pTHX); |
140 | int errorno; |
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141 | I32 laststype; |
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142 | int laststatval; |
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143 | Stat_t statcache; |
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144 | }; |
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145 | |
163 | |
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164 | static U32 cctx_gen; |
146 | static size_t coro_stacksize = CORO_STACKSIZE; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
147 | static struct CoroAPI coroapi; |
166 | static struct CoroAPI coroapi; |
148 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
149 | static JMPENV *main_top_env; |
168 | static JMPENV *main_top_env; |
150 | static HV *coro_state_stash, *coro_stash; |
169 | static HV *coro_state_stash, *coro_stash; |
151 | static SV *coro_mortal; /* will be freed after next transfer */ |
170 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
152 | |
171 | |
153 | static GV *irsgv; /* $/ */ |
172 | static GV *irsgv; /* $/ */ |
154 | static GV *stdoutgv; /* *STDOUT */ |
173 | static GV *stdoutgv; /* *STDOUT */ |
155 | |
174 | static SV *rv_diehook; |
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175 | static SV *rv_warnhook; |
156 | static HV *hv_sig; /* %SIG */ |
176 | static HV *hv_sig; /* %SIG */ |
157 | static SV *sv_diehook; |
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158 | static SV *sv_warnhook; |
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159 | |
177 | |
160 | /* async_pool helper stuff */ |
178 | /* async_pool helper stuff */ |
161 | static SV *sv_pool_rss; |
179 | static SV *sv_pool_rss; |
162 | static SV *sv_pool_size; |
180 | static SV *sv_pool_size; |
163 | static AV *av_async_pool; |
181 | static AV *av_async_pool; |
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182 | |
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183 | /* Coro::AnyEvent */ |
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184 | static SV *sv_activity; |
164 | |
185 | |
165 | static struct coro_cctx *cctx_first; |
186 | static struct coro_cctx *cctx_first; |
166 | static int cctx_count, cctx_idle; |
187 | static int cctx_count, cctx_idle; |
167 | |
188 | |
168 | enum { |
189 | enum { |
… | |
… | |
173 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
194 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
174 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
195 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
175 | }; |
196 | }; |
176 | |
197 | |
177 | /* this is a structure representing a c-level coroutine */ |
198 | /* this is a structure representing a c-level coroutine */ |
178 | typedef struct coro_cctx { |
199 | typedef struct coro_cctx |
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200 | { |
179 | struct coro_cctx *next; |
201 | struct coro_cctx *next; |
180 | |
202 | |
181 | /* the stack */ |
203 | /* the stack */ |
182 | void *sptr; |
204 | void *sptr; |
183 | size_t ssize; |
205 | size_t ssize; |
… | |
… | |
186 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
208 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
187 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
209 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
188 | JMPENV *top_env; |
210 | JMPENV *top_env; |
189 | coro_context cctx; |
211 | coro_context cctx; |
190 | |
212 | |
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213 | U32 gen; |
191 | #if CORO_USE_VALGRIND |
214 | #if CORO_USE_VALGRIND |
192 | int valgrind_id; |
215 | int valgrind_id; |
193 | #endif |
216 | #endif |
194 | unsigned char flags; |
217 | unsigned char flags; |
195 | } coro_cctx; |
218 | } coro_cctx; |
… | |
… | |
200 | CF_NEW = 0x0004, /* has never been switched to */ |
223 | CF_NEW = 0x0004, /* has never been switched to */ |
201 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
224 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
202 | }; |
225 | }; |
203 | |
226 | |
204 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
227 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
205 | typedef struct { |
228 | typedef struct |
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229 | { |
206 | SV *defsv; |
230 | SV *defsv; |
207 | AV *defav; |
231 | AV *defav; |
208 | SV *errsv; |
232 | SV *errsv; |
209 | SV *irsgv; |
233 | SV *irsgv; |
210 | #define VAR(name,type) type name; |
234 | #define VAR(name,type) type name; |
… | |
… | |
214 | |
238 | |
215 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
239 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
216 | |
240 | |
217 | /* this is a structure representing a perl-level coroutine */ |
241 | /* this is a structure representing a perl-level coroutine */ |
218 | struct coro { |
242 | struct coro { |
219 | /* the c coroutine allocated to this perl coroutine, if any */ |
243 | /* the C coroutine allocated to this perl coroutine, if any */ |
220 | coro_cctx *cctx; |
244 | coro_cctx *cctx; |
221 | |
245 | |
222 | /* process data */ |
246 | /* state data */ |
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247 | struct CoroSLF slf_frame; /* saved slf frame */ |
223 | AV *mainstack; |
248 | AV *mainstack; |
224 | perl_slots *slot; /* basically the saved sp */ |
249 | perl_slots *slot; /* basically the saved sp */ |
225 | |
250 | |
226 | AV *args; /* data associated with this coroutine (initial args) */ |
251 | AV *args; /* data associated with this coroutine (initial args) */ |
227 | int refcnt; /* coroutines are refcounted, yes */ |
252 | int refcnt; /* coroutines are refcounted, yes */ |
228 | int flags; /* CF_ flags */ |
253 | int flags; /* CF_ flags */ |
229 | HV *hv; /* the perl hash associated with this coro, if any */ |
254 | HV *hv; /* the perl hash associated with this coro, if any */ |
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255 | void (*on_destroy)(pTHX_ struct coro *coro); |
230 | |
256 | |
231 | /* statistics */ |
257 | /* statistics */ |
232 | int usecount; /* number of transfers to this coro */ |
258 | int usecount; /* number of transfers to this coro */ |
233 | |
259 | |
234 | /* coro process data */ |
260 | /* coro process data */ |
235 | int prio; |
261 | int prio; |
236 | SV *throw; /* exception to be thrown */ |
262 | SV *except; /* exception to be thrown */ |
237 | |
263 | |
238 | /* async_pool */ |
264 | /* async_pool */ |
239 | SV *saved_deffh; |
265 | SV *saved_deffh; |
240 | |
266 | |
241 | /* linked list */ |
267 | /* linked list */ |
242 | struct coro *next, *prev; |
268 | struct coro *next, *prev; |
243 | }; |
269 | }; |
244 | |
270 | |
245 | typedef struct coro *Coro__State; |
271 | typedef struct coro *Coro__State; |
246 | typedef struct coro *Coro__State_or_hashref; |
272 | typedef struct coro *Coro__State_or_hashref; |
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273 | |
|
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274 | /* the following variables are effectively part of the perl context */ |
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275 | /* and get copied between struct coro and these variables */ |
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276 | /* the mainr easonw e don't support windows process emulation */ |
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277 | static struct CoroSLF slf_frame; /* the current slf frame */ |
247 | |
278 | |
248 | /** Coro ********************************************************************/ |
279 | /** Coro ********************************************************************/ |
249 | |
280 | |
250 | #define PRIO_MAX 3 |
281 | #define PRIO_MAX 3 |
251 | #define PRIO_HIGH 1 |
282 | #define PRIO_HIGH 1 |
… | |
… | |
254 | #define PRIO_IDLE -3 |
285 | #define PRIO_IDLE -3 |
255 | #define PRIO_MIN -4 |
286 | #define PRIO_MIN -4 |
256 | |
287 | |
257 | /* for Coro.pm */ |
288 | /* for Coro.pm */ |
258 | static SV *coro_current; |
289 | static SV *coro_current; |
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|
290 | static SV *coro_readyhook; |
259 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
291 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
260 | static int coro_nready; |
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261 | static struct coro *coro_first; |
292 | static struct coro *coro_first; |
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293 | #define coro_nready coroapi.nready |
262 | |
294 | |
263 | /** lowlevel stuff **********************************************************/ |
295 | /** lowlevel stuff **********************************************************/ |
264 | |
296 | |
265 | static SV * |
297 | static SV * |
266 | coro_get_sv (const char *name, int create) |
298 | coro_get_sv (pTHX_ const char *name, int create) |
267 | { |
299 | { |
268 | #if PERL_VERSION_ATLEAST (5,9,0) |
300 | #if PERL_VERSION_ATLEAST (5,10,0) |
269 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
301 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
270 | get_sv (name, create); |
302 | get_sv (name, create); |
271 | #endif |
303 | #endif |
272 | return get_sv (name, create); |
304 | return get_sv (name, create); |
273 | } |
305 | } |
274 | |
306 | |
275 | static AV * |
307 | static AV * |
276 | coro_get_av (const char *name, int create) |
308 | coro_get_av (pTHX_ const char *name, int create) |
277 | { |
309 | { |
278 | #if PERL_VERSION_ATLEAST (5,9,0) |
310 | #if PERL_VERSION_ATLEAST (5,10,0) |
279 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
311 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
280 | get_av (name, create); |
312 | get_av (name, create); |
281 | #endif |
313 | #endif |
282 | return get_av (name, create); |
314 | return get_av (name, create); |
283 | } |
315 | } |
284 | |
316 | |
285 | static HV * |
317 | static HV * |
286 | coro_get_hv (const char *name, int create) |
318 | coro_get_hv (pTHX_ const char *name, int create) |
287 | { |
319 | { |
288 | #if PERL_VERSION_ATLEAST (5,9,0) |
320 | #if PERL_VERSION_ATLEAST (5,10,0) |
289 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
321 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
290 | get_hv (name, create); |
322 | get_hv (name, create); |
291 | #endif |
323 | #endif |
292 | return get_hv (name, create); |
324 | return get_hv (name, create); |
293 | } |
325 | } |
… | |
… | |
298 | AV *padlist = CvPADLIST (cv); |
330 | AV *padlist = CvPADLIST (cv); |
299 | AV *newpadlist, *newpad; |
331 | AV *newpadlist, *newpad; |
300 | |
332 | |
301 | newpadlist = newAV (); |
333 | newpadlist = newAV (); |
302 | AvREAL_off (newpadlist); |
334 | AvREAL_off (newpadlist); |
303 | #if PERL_VERSION_ATLEAST (5,9,0) |
335 | #if PERL_VERSION_ATLEAST (5,10,0) |
304 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
336 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
305 | #else |
337 | #else |
306 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
338 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
307 | #endif |
339 | #endif |
308 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
340 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
309 | --AvFILLp (padlist); |
341 | --AvFILLp (padlist); |
310 | |
342 | |
311 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
343 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
312 | av_store (newpadlist, 1, (SV *)newpad); |
344 | av_store (newpadlist, 1, (SV *)newpad); |
313 | |
345 | |
314 | return newpadlist; |
346 | return newpadlist; |
315 | } |
347 | } |
316 | |
348 | |
… | |
… | |
346 | |
378 | |
347 | /* casting is fun. */ |
379 | /* casting is fun. */ |
348 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
380 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
349 | free_padlist (aTHX_ padlist); |
381 | free_padlist (aTHX_ padlist); |
350 | |
382 | |
351 | SvREFCNT_dec (av); |
383 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
352 | |
384 | |
353 | return 0; |
385 | return 0; |
354 | } |
386 | } |
355 | |
387 | |
|
|
388 | #define CORO_MAGIC_type_cv 26 |
356 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
389 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
357 | |
390 | |
358 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
391 | static MGVTBL coro_cv_vtbl = { |
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392 | 0, 0, 0, 0, |
|
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393 | coro_cv_free |
|
|
394 | }; |
359 | |
395 | |
360 | #define CORO_MAGIC(cv) \ |
396 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
397 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
361 | SvMAGIC (cv) \ |
398 | ? SvMAGIC (sv) \ |
362 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
399 | : mg_find (sv, type)) |
363 | ? SvMAGIC (cv) \ |
400 | |
364 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
401 | #define CORO_MAGIC(sv, type) \ |
|
|
402 | (expect_true (SvMAGIC (sv)) \ |
|
|
403 | ? CORO_MAGIC_NN (sv, type) \ |
365 | : 0 |
404 | : 0) |
366 | |
405 | |
367 | static struct coro * |
406 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
407 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
408 | |
|
|
409 | INLINE struct coro * |
368 | SvSTATE_ (pTHX_ SV *coro) |
410 | SvSTATE_ (pTHX_ SV *coro) |
369 | { |
411 | { |
370 | HV *stash; |
412 | HV *stash; |
371 | MAGIC *mg; |
413 | MAGIC *mg; |
372 | |
414 | |
… | |
… | |
382 | /* very slow, but rare, check */ |
424 | /* very slow, but rare, check */ |
383 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
425 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
384 | croak ("Coro::State object required"); |
426 | croak ("Coro::State object required"); |
385 | } |
427 | } |
386 | |
428 | |
387 | mg = CORO_MAGIC (coro); |
429 | mg = CORO_MAGIC_state (coro); |
388 | return (struct coro *)mg->mg_ptr; |
430 | return (struct coro *)mg->mg_ptr; |
389 | } |
431 | } |
390 | |
432 | |
391 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
433 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
392 | |
434 | |
|
|
435 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
436 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
437 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
438 | |
393 | /* the next two functions merely cache the padlists */ |
439 | /* the next two functions merely cache the padlists */ |
394 | static void |
440 | static void |
395 | get_padlist (pTHX_ CV *cv) |
441 | get_padlist (pTHX_ CV *cv) |
396 | { |
442 | { |
397 | MAGIC *mg = CORO_MAGIC (cv); |
443 | MAGIC *mg = CORO_MAGIC_cv (cv); |
398 | AV *av; |
444 | AV *av; |
399 | |
445 | |
400 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
446 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
401 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
447 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
402 | else |
448 | else |
403 | { |
449 | { |
404 | #if CORO_PREFER_PERL_FUNCTIONS |
450 | #if CORO_PREFER_PERL_FUNCTIONS |
405 | /* this is probably cleaner, but also slower? */ |
451 | /* this is probably cleaner? but also slower! */ |
|
|
452 | /* in practise, it seems to be less stable */ |
406 | CV *cp = Perl_cv_clone (cv); |
453 | CV *cp = Perl_cv_clone (cv); |
407 | CvPADLIST (cv) = CvPADLIST (cp); |
454 | CvPADLIST (cv) = CvPADLIST (cp); |
408 | CvPADLIST (cp) = 0; |
455 | CvPADLIST (cp) = 0; |
409 | SvREFCNT_dec (cp); |
456 | SvREFCNT_dec (cp); |
410 | #else |
457 | #else |
… | |
… | |
414 | } |
461 | } |
415 | |
462 | |
416 | static void |
463 | static void |
417 | put_padlist (pTHX_ CV *cv) |
464 | put_padlist (pTHX_ CV *cv) |
418 | { |
465 | { |
419 | MAGIC *mg = CORO_MAGIC (cv); |
466 | MAGIC *mg = CORO_MAGIC_cv (cv); |
420 | AV *av; |
467 | AV *av; |
421 | |
468 | |
422 | if (expect_false (!mg)) |
469 | if (expect_false (!mg)) |
423 | { |
470 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
424 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
425 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
426 | mg->mg_virtual = &vtbl_coro; |
|
|
427 | mg->mg_obj = (SV *)newAV (); |
|
|
428 | } |
|
|
429 | |
471 | |
430 | av = (AV *)mg->mg_obj; |
472 | av = (AV *)mg->mg_obj; |
431 | |
473 | |
432 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
474 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
433 | av_extend (av, AvMAX (av) + 1); |
475 | av_extend (av, AvMAX (av) + 1); |
… | |
… | |
451 | GvSV (irsgv) = slot->irsgv; |
493 | GvSV (irsgv) = slot->irsgv; |
452 | |
494 | |
453 | #define VAR(name,type) PL_ ## name = slot->name; |
495 | #define VAR(name,type) PL_ ## name = slot->name; |
454 | # include "state.h" |
496 | # include "state.h" |
455 | #undef VAR |
497 | #undef VAR |
456 | |
|
|
457 | /*hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0);*/ |
|
|
458 | /*hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0);*/ |
|
|
459 | |
498 | |
460 | { |
499 | { |
461 | dSP; |
500 | dSP; |
462 | |
501 | |
463 | CV *cv; |
502 | CV *cv; |
… | |
… | |
470 | CvPADLIST (cv) = (AV *)POPs; |
509 | CvPADLIST (cv) = (AV *)POPs; |
471 | } |
510 | } |
472 | |
511 | |
473 | PUTBACK; |
512 | PUTBACK; |
474 | } |
513 | } |
|
|
514 | |
|
|
515 | slf_frame = c->slf_frame; |
|
|
516 | CORO_THROW = c->except; |
475 | } |
517 | } |
476 | |
518 | |
477 | static void |
519 | static void |
478 | save_perl (pTHX_ Coro__State c) |
520 | save_perl (pTHX_ Coro__State c) |
479 | { |
521 | { |
|
|
522 | c->except = CORO_THROW; |
|
|
523 | c->slf_frame = slf_frame; |
|
|
524 | |
480 | { |
525 | { |
481 | dSP; |
526 | dSP; |
482 | I32 cxix = cxstack_ix; |
527 | I32 cxix = cxstack_ix; |
483 | PERL_CONTEXT *ccstk = cxstack; |
528 | PERL_CONTEXT *ccstk = cxstack; |
484 | PERL_SI *top_si = PL_curstackinfo; |
529 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
502 | |
547 | |
503 | if (expect_true (CvDEPTH (cv))) |
548 | if (expect_true (CvDEPTH (cv))) |
504 | { |
549 | { |
505 | EXTEND (SP, 3); |
550 | EXTEND (SP, 3); |
506 | PUSHs ((SV *)CvPADLIST (cv)); |
551 | PUSHs ((SV *)CvPADLIST (cv)); |
507 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
552 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
508 | PUSHs ((SV *)cv); |
553 | PUSHs ((SV *)cv); |
509 | |
554 | |
510 | CvDEPTH (cv) = 0; |
555 | CvDEPTH (cv) = 0; |
511 | get_padlist (aTHX_ cv); |
556 | get_padlist (aTHX_ cv); |
512 | } |
557 | } |
… | |
… | |
551 | #undef VAR |
596 | #undef VAR |
552 | } |
597 | } |
553 | } |
598 | } |
554 | |
599 | |
555 | /* |
600 | /* |
556 | * allocate various perl stacks. This is an exact copy |
601 | * allocate various perl stacks. This is almost an exact copy |
557 | * of perl.c:init_stacks, except that it uses less memory |
602 | * of perl.c:init_stacks, except that it uses less memory |
558 | * on the (sometimes correct) assumption that coroutines do |
603 | * on the (sometimes correct) assumption that coroutines do |
559 | * not usually need a lot of stackspace. |
604 | * not usually need a lot of stackspace. |
560 | */ |
605 | */ |
561 | #if CORO_PREFER_PERL_FUNCTIONS |
606 | #if CORO_PREFER_PERL_FUNCTIONS |
… | |
… | |
592 | |
637 | |
593 | New(54,PL_savestack,24,ANY); |
638 | New(54,PL_savestack,24,ANY); |
594 | PL_savestack_ix = 0; |
639 | PL_savestack_ix = 0; |
595 | PL_savestack_max = 24; |
640 | PL_savestack_max = 24; |
596 | |
641 | |
597 | #if !PERL_VERSION_ATLEAST (5,9,0) |
642 | #if !PERL_VERSION_ATLEAST (5,10,0) |
598 | New(54,PL_retstack,4,OP*); |
643 | New(54,PL_retstack,4,OP*); |
599 | PL_retstack_ix = 0; |
644 | PL_retstack_ix = 0; |
600 | PL_retstack_max = 4; |
645 | PL_retstack_max = 4; |
601 | #endif |
646 | #endif |
602 | } |
647 | } |
… | |
… | |
604 | |
649 | |
605 | /* |
650 | /* |
606 | * destroy the stacks, the callchain etc... |
651 | * destroy the stacks, the callchain etc... |
607 | */ |
652 | */ |
608 | static void |
653 | static void |
609 | coro_destroy_stacks (pTHX) |
654 | coro_destruct_stacks (pTHX) |
610 | { |
655 | { |
611 | while (PL_curstackinfo->si_next) |
656 | while (PL_curstackinfo->si_next) |
612 | PL_curstackinfo = PL_curstackinfo->si_next; |
657 | PL_curstackinfo = PL_curstackinfo->si_next; |
613 | |
658 | |
614 | while (PL_curstackinfo) |
659 | while (PL_curstackinfo) |
… | |
… | |
625 | |
670 | |
626 | Safefree (PL_tmps_stack); |
671 | Safefree (PL_tmps_stack); |
627 | Safefree (PL_markstack); |
672 | Safefree (PL_markstack); |
628 | Safefree (PL_scopestack); |
673 | Safefree (PL_scopestack); |
629 | Safefree (PL_savestack); |
674 | Safefree (PL_savestack); |
630 | #if !PERL_VERSION_ATLEAST (5,9,0) |
675 | #if !PERL_VERSION_ATLEAST (5,10,0) |
631 | Safefree (PL_retstack); |
676 | Safefree (PL_retstack); |
632 | #endif |
677 | #endif |
633 | } |
678 | } |
634 | |
679 | |
635 | static size_t |
680 | static size_t |
… | |
… | |
651 | #undef VAR |
696 | #undef VAR |
652 | } |
697 | } |
653 | else |
698 | else |
654 | slot = coro->slot; |
699 | slot = coro->slot; |
655 | |
700 | |
|
|
701 | if (slot) |
|
|
702 | { |
656 | rss += sizeof (slot->curstackinfo); |
703 | rss += sizeof (slot->curstackinfo); |
657 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
704 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
658 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
705 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
659 | rss += slot->tmps_max * sizeof (SV *); |
706 | rss += slot->tmps_max * sizeof (SV *); |
660 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
707 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
661 | rss += slot->scopestack_max * sizeof (I32); |
708 | rss += slot->scopestack_max * sizeof (I32); |
662 | rss += slot->savestack_max * sizeof (ANY); |
709 | rss += slot->savestack_max * sizeof (ANY); |
663 | |
710 | |
664 | #if !PERL_VERSION_ATLEAST (5,9,0) |
711 | #if !PERL_VERSION_ATLEAST (5,10,0) |
665 | rss += slot->retstack_max * sizeof (OP *); |
712 | rss += slot->retstack_max * sizeof (OP *); |
666 | #endif |
713 | #endif |
|
|
714 | } |
667 | } |
715 | } |
668 | |
716 | |
669 | return rss; |
717 | return rss; |
670 | } |
718 | } |
671 | |
719 | |
672 | /** coroutine stack handling ************************************************/ |
720 | /** coroutine stack handling ************************************************/ |
673 | |
721 | |
|
|
722 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
723 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
724 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
725 | |
|
|
726 | /* apparently < 5.8.8 */ |
|
|
727 | #ifndef MgPV_nolen_const |
|
|
728 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
729 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
730 | (const char*)(mg)->mg_ptr) |
|
|
731 | #endif |
|
|
732 | |
|
|
733 | /* |
|
|
734 | * This overrides the default magic get method of %SIG elements. |
|
|
735 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
736 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
737 | * readback here. |
|
|
738 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
739 | * not expecting this to actually change the hook. This is a potential problem |
|
|
740 | * when a schedule happens then, but we ignore this. |
|
|
741 | */ |
674 | static void |
742 | static int |
|
|
743 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
744 | { |
|
|
745 | const char *s = MgPV_nolen_const (mg); |
|
|
746 | |
|
|
747 | if (*s == '_') |
|
|
748 | { |
|
|
749 | SV **svp = 0; |
|
|
750 | |
|
|
751 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
752 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
753 | |
|
|
754 | if (svp) |
|
|
755 | { |
|
|
756 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
757 | return 0; |
|
|
758 | } |
|
|
759 | } |
|
|
760 | |
|
|
761 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
762 | } |
|
|
763 | |
|
|
764 | static int |
|
|
765 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
766 | { |
|
|
767 | const char *s = MgPV_nolen_const (mg); |
|
|
768 | |
|
|
769 | if (*s == '_') |
|
|
770 | { |
|
|
771 | SV **svp = 0; |
|
|
772 | |
|
|
773 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
774 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
775 | |
|
|
776 | if (svp) |
|
|
777 | { |
|
|
778 | SV *old = *svp; |
|
|
779 | *svp = 0; |
|
|
780 | SvREFCNT_dec (old); |
|
|
781 | return 0; |
|
|
782 | } |
|
|
783 | } |
|
|
784 | |
|
|
785 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
786 | } |
|
|
787 | |
|
|
788 | static int |
|
|
789 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
790 | { |
|
|
791 | const char *s = MgPV_nolen_const (mg); |
|
|
792 | |
|
|
793 | if (*s == '_') |
|
|
794 | { |
|
|
795 | SV **svp = 0; |
|
|
796 | |
|
|
797 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
798 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
799 | |
|
|
800 | if (svp) |
|
|
801 | { |
|
|
802 | SV *old = *svp; |
|
|
803 | *svp = newSVsv (sv); |
|
|
804 | SvREFCNT_dec (old); |
|
|
805 | return 0; |
|
|
806 | } |
|
|
807 | } |
|
|
808 | |
|
|
809 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
810 | } |
|
|
811 | |
|
|
812 | static void |
|
|
813 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
814 | { |
|
|
815 | /* kind of mega-hacky, but works */ |
|
|
816 | ta->next = ta->prev = (struct coro *)ta; |
|
|
817 | } |
|
|
818 | |
|
|
819 | static int |
|
|
820 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
821 | { |
|
|
822 | return 0; |
|
|
823 | } |
|
|
824 | |
|
|
825 | static UNOP coro_setup_op; |
|
|
826 | |
|
|
827 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
675 | coro_setup (pTHX_ struct coro *coro) |
828 | coro_setup (pTHX_ struct coro *coro) |
676 | { |
829 | { |
677 | /* |
830 | /* |
678 | * emulate part of the perl startup here. |
831 | * emulate part of the perl startup here. |
679 | */ |
832 | */ |
… | |
… | |
686 | PL_curpm = 0; |
839 | PL_curpm = 0; |
687 | PL_curpad = 0; |
840 | PL_curpad = 0; |
688 | PL_localizing = 0; |
841 | PL_localizing = 0; |
689 | PL_dirty = 0; |
842 | PL_dirty = 0; |
690 | PL_restartop = 0; |
843 | PL_restartop = 0; |
691 | PL_diehook = 0; hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
844 | #if PERL_VERSION_ATLEAST (5,10,0) |
692 | PL_warnhook = 0; hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
845 | PL_parser = 0; |
|
|
846 | #endif |
|
|
847 | |
|
|
848 | /* recreate the die/warn hooks */ |
|
|
849 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
850 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
693 | |
851 | |
694 | GvSV (PL_defgv) = newSV (0); |
852 | GvSV (PL_defgv) = newSV (0); |
695 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
853 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
696 | GvSV (PL_errgv) = newSV (0); |
854 | GvSV (PL_errgv) = newSV (0); |
697 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
855 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
698 | PL_rs = newSVsv (GvSV (irsgv)); |
856 | PL_rs = newSVsv (GvSV (irsgv)); |
699 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
857 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
700 | |
858 | |
701 | { |
859 | { |
702 | dSP; |
860 | dSP; |
703 | LOGOP myop; |
861 | UNOP myop; |
704 | |
862 | |
705 | Zero (&myop, 1, LOGOP); |
863 | Zero (&myop, 1, UNOP); |
706 | myop.op_next = Nullop; |
864 | myop.op_next = Nullop; |
707 | myop.op_flags = OPf_WANT_VOID; |
865 | myop.op_flags = OPf_WANT_VOID; |
708 | |
866 | |
709 | PUSHMARK (SP); |
867 | PUSHMARK (SP); |
710 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
868 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
711 | PUTBACK; |
869 | PUTBACK; |
712 | PL_op = (OP *)&myop; |
870 | PL_op = (OP *)&myop; |
713 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
871 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
714 | SPAGAIN; |
872 | SPAGAIN; |
715 | } |
873 | } |
716 | |
874 | |
717 | ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */ |
875 | /* this newly created coroutine might be run on an existing cctx which most |
718 | } |
876 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
877 | */ |
|
|
878 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
879 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
719 | |
880 | |
|
|
881 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
882 | coro_setup_op.op_next = PL_op; |
|
|
883 | coro_setup_op.op_type = OP_CUSTOM; |
|
|
884 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
885 | /* no flags required, as an init function won't be called */ |
|
|
886 | |
|
|
887 | PL_op = (OP *)&coro_setup_op; |
|
|
888 | |
|
|
889 | /* copy throw, in case it was set before coro_setup */ |
|
|
890 | CORO_THROW = coro->except; |
|
|
891 | } |
|
|
892 | |
720 | static void |
893 | static void |
721 | coro_destroy (pTHX_ struct coro *coro) |
894 | coro_destruct (pTHX_ struct coro *coro) |
722 | { |
895 | { |
723 | if (!IN_DESTRUCT) |
896 | if (!IN_DESTRUCT) |
724 | { |
897 | { |
725 | /* restore all saved variables and stuff */ |
898 | /* restore all saved variables and stuff */ |
726 | LEAVE_SCOPE (0); |
899 | LEAVE_SCOPE (0); |
… | |
… | |
746 | |
919 | |
747 | SvREFCNT_dec (PL_diehook); |
920 | SvREFCNT_dec (PL_diehook); |
748 | SvREFCNT_dec (PL_warnhook); |
921 | SvREFCNT_dec (PL_warnhook); |
749 | |
922 | |
750 | SvREFCNT_dec (coro->saved_deffh); |
923 | SvREFCNT_dec (coro->saved_deffh); |
751 | SvREFCNT_dec (coro->throw); |
924 | SvREFCNT_dec (CORO_THROW); |
752 | |
925 | |
753 | coro_destroy_stacks (aTHX); |
926 | coro_destruct_stacks (aTHX); |
754 | } |
927 | } |
755 | |
928 | |
756 | static void |
929 | INLINE void |
757 | free_coro_mortal (pTHX) |
930 | free_coro_mortal (pTHX) |
758 | { |
931 | { |
759 | if (expect_true (coro_mortal)) |
932 | if (expect_true (coro_mortal)) |
760 | { |
933 | { |
761 | SvREFCNT_dec (coro_mortal); |
934 | SvREFCNT_dec (coro_mortal); |
… | |
… | |
766 | static int |
939 | static int |
767 | runops_trace (pTHX) |
940 | runops_trace (pTHX) |
768 | { |
941 | { |
769 | COP *oldcop = 0; |
942 | COP *oldcop = 0; |
770 | int oldcxix = -2; |
943 | int oldcxix = -2; |
771 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
944 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
772 | coro_cctx *cctx = coro->cctx; |
945 | coro_cctx *cctx = coro->cctx; |
773 | |
946 | |
774 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
947 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
775 | { |
948 | { |
776 | PERL_ASYNC_CHECK (); |
949 | PERL_ASYNC_CHECK (); |
… | |
… | |
795 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
968 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
796 | : bot; |
969 | : bot; |
797 | |
970 | |
798 | av_extend (av, top - bot); |
971 | av_extend (av, top - bot); |
799 | while (bot < top) |
972 | while (bot < top) |
800 | av_push (av, SvREFCNT_inc (*bot++)); |
973 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
801 | |
974 | |
802 | PL_runops = RUNOPS_DEFAULT; |
975 | PL_runops = RUNOPS_DEFAULT; |
803 | ENTER; |
976 | ENTER; |
804 | SAVETMPS; |
977 | SAVETMPS; |
805 | EXTEND (SP, 3); |
978 | EXTEND (SP, 3); |
806 | PUSHMARK (SP); |
979 | PUSHMARK (SP); |
807 | PUSHs (&PL_sv_no); |
980 | PUSHs (&PL_sv_no); |
808 | PUSHs (fullname); |
981 | PUSHs (fullname); |
809 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
982 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
810 | PUTBACK; |
983 | PUTBACK; |
811 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
984 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
812 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
985 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
813 | SPAGAIN; |
986 | SPAGAIN; |
814 | FREETMPS; |
987 | FREETMPS; |
815 | LEAVE; |
988 | LEAVE; |
816 | PL_runops = runops_trace; |
989 | PL_runops = runops_trace; |
… | |
… | |
843 | SAVETMPS; |
1016 | SAVETMPS; |
844 | EXTEND (SP, 3); |
1017 | EXTEND (SP, 3); |
845 | PUSHMARK (SP); |
1018 | PUSHMARK (SP); |
846 | PUSHs (&PL_sv_yes); |
1019 | PUSHs (&PL_sv_yes); |
847 | PUSHs (fullname); |
1020 | PUSHs (fullname); |
848 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1021 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
849 | PUTBACK; |
1022 | PUTBACK; |
850 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_sub_cb"), 0); |
1023 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
851 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1024 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
852 | SPAGAIN; |
1025 | SPAGAIN; |
853 | FREETMPS; |
1026 | FREETMPS; |
854 | LEAVE; |
1027 | LEAVE; |
855 | PL_runops = runops_trace; |
1028 | PL_runops = runops_trace; |
… | |
… | |
869 | PL_runops = RUNOPS_DEFAULT; |
1042 | PL_runops = RUNOPS_DEFAULT; |
870 | PUSHMARK (SP); |
1043 | PUSHMARK (SP); |
871 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
1044 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
872 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
1045 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
873 | PUTBACK; |
1046 | PUTBACK; |
874 | cb = hv_fetch ((HV *)SvRV (coro_current), strpair ("_trace_line_cb"), 0); |
1047 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
875 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1048 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
876 | SPAGAIN; |
1049 | SPAGAIN; |
877 | FREETMPS; |
1050 | FREETMPS; |
878 | LEAVE; |
1051 | LEAVE; |
879 | PL_runops = runops_trace; |
1052 | PL_runops = runops_trace; |
… | |
… | |
885 | |
1058 | |
886 | TAINT_NOT; |
1059 | TAINT_NOT; |
887 | return 0; |
1060 | return 0; |
888 | } |
1061 | } |
889 | |
1062 | |
890 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1063 | static struct coro_cctx *cctx_ssl_cctx; |
891 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1064 | static struct CoroSLF cctx_ssl_frame; |
892 | /* during execution of a perl program */ |
1065 | |
|
|
1066 | static void |
|
|
1067 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1068 | { |
|
|
1069 | ta->prev = (struct coro *)cctx_ssl_cctx; |
|
|
1070 | ta->next = 0; |
|
|
1071 | } |
|
|
1072 | |
|
|
1073 | static int |
|
|
1074 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1075 | { |
|
|
1076 | *frame = cctx_ssl_frame; |
|
|
1077 | |
|
|
1078 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1079 | } |
|
|
1080 | |
|
|
1081 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
893 | static void NOINLINE |
1082 | static void NOINLINE |
894 | cctx_prepare (pTHX_ coro_cctx *cctx) |
1083 | cctx_prepare (pTHX_ coro_cctx *cctx) |
895 | { |
1084 | { |
896 | dSP; |
|
|
897 | LOGOP myop; |
|
|
898 | |
|
|
899 | PL_top_env = &PL_start_env; |
1085 | PL_top_env = &PL_start_env; |
900 | |
1086 | |
901 | if (cctx->flags & CC_TRACE) |
1087 | if (cctx->flags & CC_TRACE) |
902 | PL_runops = runops_trace; |
1088 | PL_runops = runops_trace; |
903 | |
1089 | |
904 | Zero (&myop, 1, LOGOP); |
1090 | /* we already must be executing an SLF op, there is no other valid way |
905 | myop.op_next = PL_op; |
1091 | * that can lead to creation of a new cctx */ |
906 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1092 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1093 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
907 | |
1094 | |
908 | PUSHMARK (SP); |
1095 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
909 | EXTEND (SP, 2); |
1096 | cctx_ssl_cctx = cctx; |
910 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1097 | cctx_ssl_frame = slf_frame; |
911 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1098 | |
912 | PUTBACK; |
1099 | slf_frame.prepare = slf_prepare_set_stacklevel; |
913 | PL_op = (OP *)&myop; |
1100 | slf_frame.check = slf_check_set_stacklevel; |
914 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1101 | } |
915 | SPAGAIN; |
1102 | |
|
|
1103 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1104 | INLINE void |
|
|
1105 | transfer_tail (pTHX) |
|
|
1106 | { |
|
|
1107 | free_coro_mortal (aTHX); |
916 | } |
1108 | } |
917 | |
1109 | |
918 | /* |
1110 | /* |
919 | * this is a _very_ stripped down perl interpreter ;) |
1111 | * this is a _very_ stripped down perl interpreter ;) |
920 | */ |
1112 | */ |
921 | static void |
1113 | static void |
922 | cctx_run (void *arg) |
1114 | cctx_run (void *arg) |
923 | { |
1115 | { |
|
|
1116 | #ifdef USE_ITHREADS |
|
|
1117 | # if CORO_PTHREAD |
|
|
1118 | PERL_SET_CONTEXT (coro_thx); |
|
|
1119 | # endif |
|
|
1120 | #endif |
|
|
1121 | { |
924 | dTHX; |
1122 | dTHX; |
925 | |
1123 | |
926 | /* cctx_run is the alternative tail of transfer(), so unlock here. */ |
1124 | /* normally we would need to skip the entersub here */ |
927 | UNLOCK; |
1125 | /* not doing so will re-execute it, which is exactly what we want */ |
928 | |
|
|
929 | /* we now skip the entersub that lead to transfer() */ |
|
|
930 | PL_op = PL_op->op_next; |
1126 | /* PL_nop = PL_nop->op_next */ |
931 | |
1127 | |
932 | /* inject a fake subroutine call to cctx_init */ |
1128 | /* inject a fake subroutine call to cctx_init */ |
933 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
1129 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
934 | |
1130 | |
|
|
1131 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1132 | transfer_tail (aTHX); |
|
|
1133 | |
935 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1134 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
936 | PL_restartop = PL_op; |
1135 | PL_restartop = PL_op; |
937 | perl_run (PL_curinterp); |
1136 | perl_run (PL_curinterp); |
938 | |
1137 | |
939 | /* |
1138 | /* |
940 | * If perl-run returns we assume exit() was being called or the coro |
1139 | * If perl-run returns we assume exit() was being called or the coro |
941 | * fell off the end, which seems to be the only valid (non-bug) |
1140 | * fell off the end, which seems to be the only valid (non-bug) |
942 | * reason for perl_run to return. We try to exit by jumping to the |
1141 | * reason for perl_run to return. We try to exit by jumping to the |
943 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1142 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
944 | * coroutine as Coro has no such concept |
1143 | * coroutine as Coro has no such concept |
945 | */ |
1144 | */ |
946 | PL_top_env = main_top_env; |
1145 | PL_top_env = main_top_env; |
947 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1146 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1147 | } |
948 | } |
1148 | } |
949 | |
1149 | |
950 | static coro_cctx * |
1150 | static coro_cctx * |
951 | cctx_new () |
1151 | cctx_new () |
952 | { |
1152 | { |
953 | coro_cctx *cctx; |
1153 | coro_cctx *cctx; |
|
|
1154 | |
|
|
1155 | ++cctx_count; |
|
|
1156 | New (0, cctx, 1, coro_cctx); |
|
|
1157 | |
|
|
1158 | cctx->gen = cctx_gen; |
|
|
1159 | cctx->flags = 0; |
|
|
1160 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1161 | |
|
|
1162 | return cctx; |
|
|
1163 | } |
|
|
1164 | |
|
|
1165 | /* create a new cctx only suitable as source */ |
|
|
1166 | static coro_cctx * |
|
|
1167 | cctx_new_empty () |
|
|
1168 | { |
|
|
1169 | coro_cctx *cctx = cctx_new (); |
|
|
1170 | |
|
|
1171 | cctx->sptr = 0; |
|
|
1172 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1173 | |
|
|
1174 | return cctx; |
|
|
1175 | } |
|
|
1176 | |
|
|
1177 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1178 | static coro_cctx * |
|
|
1179 | cctx_new_run () |
|
|
1180 | { |
|
|
1181 | coro_cctx *cctx = cctx_new (); |
954 | void *stack_start; |
1182 | void *stack_start; |
955 | size_t stack_size; |
1183 | size_t stack_size; |
956 | |
1184 | |
957 | ++cctx_count; |
|
|
958 | |
|
|
959 | Newz (0, cctx, 1, coro_cctx); |
|
|
960 | |
|
|
961 | #if HAVE_MMAP |
1185 | #if HAVE_MMAP |
962 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1186 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
963 | /* mmap supposedly does allocate-on-write for us */ |
1187 | /* mmap supposedly does allocate-on-write for us */ |
964 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1188 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
965 | |
1189 | |
966 | if (cctx->sptr != (void *)-1) |
1190 | if (cctx->sptr != (void *)-1) |
967 | { |
1191 | { |
968 | # if CORO_STACKGUARD |
1192 | #if CORO_STACKGUARD |
969 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1193 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
970 | # endif |
1194 | #endif |
971 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1195 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
972 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1196 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
973 | cctx->flags |= CC_MAPPED; |
1197 | cctx->flags |= CC_MAPPED; |
974 | } |
1198 | } |
975 | else |
1199 | else |
976 | #endif |
1200 | #endif |
977 | { |
1201 | { |
978 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1202 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
979 | New (0, cctx->sptr, coro_stacksize, long); |
1203 | New (0, cctx->sptr, cctx_stacksize, long); |
980 | |
1204 | |
981 | if (!cctx->sptr) |
1205 | if (!cctx->sptr) |
982 | { |
1206 | { |
983 | perror ("FATAL: unable to allocate stack for coroutine"); |
1207 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
984 | _exit (EXIT_FAILURE); |
1208 | _exit (EXIT_FAILURE); |
985 | } |
1209 | } |
986 | |
1210 | |
987 | stack_start = cctx->sptr; |
1211 | stack_start = cctx->sptr; |
988 | stack_size = cctx->ssize; |
1212 | stack_size = cctx->ssize; |
989 | } |
1213 | } |
990 | |
1214 | |
991 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1215 | #if CORO_USE_VALGRIND |
|
|
1216 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1217 | #endif |
|
|
1218 | |
992 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1219 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
993 | |
1220 | |
994 | return cctx; |
1221 | return cctx; |
995 | } |
1222 | } |
996 | |
1223 | |
… | |
… | |
999 | { |
1226 | { |
1000 | if (!cctx) |
1227 | if (!cctx) |
1001 | return; |
1228 | return; |
1002 | |
1229 | |
1003 | --cctx_count; |
1230 | --cctx_count; |
|
|
1231 | coro_destroy (&cctx->cctx); |
1004 | |
1232 | |
|
|
1233 | /* coro_transfer creates new, empty cctx's */ |
|
|
1234 | if (cctx->sptr) |
|
|
1235 | { |
1005 | #if CORO_USE_VALGRIND |
1236 | #if CORO_USE_VALGRIND |
1006 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1237 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1007 | #endif |
1238 | #endif |
1008 | |
1239 | |
1009 | #if HAVE_MMAP |
1240 | #if HAVE_MMAP |
1010 | if (cctx->flags & CC_MAPPED) |
1241 | if (cctx->flags & CC_MAPPED) |
1011 | munmap (cctx->sptr, cctx->ssize); |
1242 | munmap (cctx->sptr, cctx->ssize); |
1012 | else |
1243 | else |
1013 | #endif |
1244 | #endif |
1014 | Safefree (cctx->sptr); |
1245 | Safefree (cctx->sptr); |
|
|
1246 | } |
1015 | |
1247 | |
1016 | Safefree (cctx); |
1248 | Safefree (cctx); |
1017 | } |
1249 | } |
1018 | |
1250 | |
1019 | /* wether this cctx should be destructed */ |
1251 | /* wether this cctx should be destructed */ |
1020 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
1252 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1021 | |
1253 | |
1022 | static coro_cctx * |
1254 | static coro_cctx * |
1023 | cctx_get (pTHX) |
1255 | cctx_get (pTHX) |
1024 | { |
1256 | { |
1025 | while (expect_true (cctx_first)) |
1257 | while (expect_true (cctx_first)) |
… | |
… | |
1032 | return cctx; |
1264 | return cctx; |
1033 | |
1265 | |
1034 | cctx_destroy (cctx); |
1266 | cctx_destroy (cctx); |
1035 | } |
1267 | } |
1036 | |
1268 | |
1037 | return cctx_new (); |
1269 | return cctx_new_run (); |
1038 | } |
1270 | } |
1039 | |
1271 | |
1040 | static void |
1272 | static void |
1041 | cctx_put (coro_cctx *cctx) |
1273 | cctx_put (coro_cctx *cctx) |
1042 | { |
1274 | { |
|
|
1275 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1276 | |
1043 | /* free another cctx if overlimit */ |
1277 | /* free another cctx if overlimit */ |
1044 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
1278 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1045 | { |
1279 | { |
1046 | coro_cctx *first = cctx_first; |
1280 | coro_cctx *first = cctx_first; |
1047 | cctx_first = first->next; |
1281 | cctx_first = first->next; |
1048 | --cctx_idle; |
1282 | --cctx_idle; |
1049 | |
1283 | |
… | |
… | |
1058 | /** coroutine switching *****************************************************/ |
1292 | /** coroutine switching *****************************************************/ |
1059 | |
1293 | |
1060 | static void |
1294 | static void |
1061 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1295 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1062 | { |
1296 | { |
|
|
1297 | /* TODO: throwing up here is considered harmful */ |
|
|
1298 | |
1063 | if (expect_true (prev != next)) |
1299 | if (expect_true (prev != next)) |
1064 | { |
1300 | { |
1065 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1301 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1066 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1302 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1067 | |
1303 | |
1068 | if (expect_false (next->flags & CF_RUNNING)) |
1304 | if (expect_false (next->flags & CF_RUNNING)) |
1069 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1305 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1070 | |
1306 | |
1071 | if (expect_false (next->flags & CF_DESTROYED)) |
1307 | if (expect_false (next->flags & CF_DESTROYED)) |
1072 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1308 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1073 | |
1309 | |
1074 | if ( |
|
|
1075 | #if PERL_VERSION_ATLEAST (5,9,0) |
1310 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1076 | expect_false (PL_parser) |
|
|
1077 | #else |
|
|
1078 | expect_false (PL_lex_state != LEX_NOTPARSING) |
1311 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1079 | #endif |
|
|
1080 | ) |
|
|
1081 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
1312 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1313 | #endif |
1082 | } |
1314 | } |
1083 | } |
1315 | } |
1084 | |
1316 | |
1085 | /* always use the TRANSFER macro */ |
1317 | /* always use the TRANSFER macro */ |
1086 | static void NOINLINE |
1318 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1087 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1319 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1088 | { |
1320 | { |
1089 | dSTACKLEVEL; |
1321 | dSTACKLEVEL; |
1090 | |
1322 | |
1091 | /* sometimes transfer is only called to set idle_sp */ |
1323 | /* sometimes transfer is only called to set idle_sp */ |
1092 | if (expect_false (!next)) |
1324 | if (expect_false (!next)) |
… | |
… | |
1098 | { |
1330 | { |
1099 | coro_cctx *prev__cctx; |
1331 | coro_cctx *prev__cctx; |
1100 | |
1332 | |
1101 | if (expect_false (prev->flags & CF_NEW)) |
1333 | if (expect_false (prev->flags & CF_NEW)) |
1102 | { |
1334 | { |
1103 | /* create a new empty context */ |
1335 | /* create a new empty/source context */ |
1104 | Newz (0, prev->cctx, 1, coro_cctx); |
1336 | prev->cctx = cctx_new_empty (); |
1105 | prev->flags &= ~CF_NEW; |
1337 | prev->flags &= ~CF_NEW; |
1106 | prev->flags |= CF_RUNNING; |
1338 | prev->flags |= CF_RUNNING; |
1107 | } |
1339 | } |
1108 | |
1340 | |
1109 | prev->flags &= ~CF_RUNNING; |
1341 | prev->flags &= ~CF_RUNNING; |
1110 | next->flags |= CF_RUNNING; |
1342 | next->flags |= CF_RUNNING; |
1111 | |
1343 | |
1112 | LOCK; |
1344 | /* first get rid of the old state */ |
|
|
1345 | save_perl (aTHX_ prev); |
1113 | |
1346 | |
1114 | if (expect_false (next->flags & CF_NEW)) |
1347 | if (expect_false (next->flags & CF_NEW)) |
1115 | { |
1348 | { |
1116 | /* need to start coroutine */ |
1349 | /* need to start coroutine */ |
1117 | next->flags &= ~CF_NEW; |
1350 | next->flags &= ~CF_NEW; |
1118 | /* first get rid of the old state */ |
|
|
1119 | save_perl (aTHX_ prev); |
|
|
1120 | /* setup coroutine call */ |
1351 | /* setup coroutine call */ |
1121 | coro_setup (aTHX_ next); |
1352 | coro_setup (aTHX_ next); |
1122 | } |
1353 | } |
1123 | else |
1354 | else |
|
|
1355 | load_perl (aTHX_ next); |
|
|
1356 | |
|
|
1357 | prev__cctx = prev->cctx; |
|
|
1358 | |
|
|
1359 | /* possibly untie and reuse the cctx */ |
|
|
1360 | if (expect_true ( |
|
|
1361 | prev__cctx->idle_sp == STACKLEVEL |
|
|
1362 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1363 | && !force_cctx |
|
|
1364 | )) |
1124 | { |
1365 | { |
1125 | /* coroutine already started */ |
|
|
1126 | save_perl (aTHX_ prev); |
|
|
1127 | load_perl (aTHX_ next); |
|
|
1128 | } |
|
|
1129 | |
|
|
1130 | prev__cctx = prev->cctx; |
|
|
1131 | |
|
|
1132 | /* possibly "free" the cctx */ |
|
|
1133 | if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) |
|
|
1134 | { |
|
|
1135 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1366 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1136 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1367 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1137 | |
1368 | |
1138 | prev->cctx = 0; |
1369 | prev->cctx = 0; |
1139 | |
1370 | |
1140 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1371 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1141 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1372 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
… | |
… | |
1156 | prev__cctx->top_env = PL_top_env; |
1387 | prev__cctx->top_env = PL_top_env; |
1157 | PL_top_env = next->cctx->top_env; |
1388 | PL_top_env = next->cctx->top_env; |
1158 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1389 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1159 | } |
1390 | } |
1160 | |
1391 | |
1161 | free_coro_mortal (aTHX); |
1392 | transfer_tail (aTHX); |
1162 | UNLOCK; |
|
|
1163 | |
|
|
1164 | if (expect_false (prev->throw || next->throw)) |
|
|
1165 | { |
|
|
1166 | struct coro *coro = SvSTATE (coro_current); |
|
|
1167 | |
|
|
1168 | if (coro->throw) |
|
|
1169 | { |
|
|
1170 | SV *exception = coro->throw; |
|
|
1171 | coro->throw = 0; |
|
|
1172 | sv_setsv (ERRSV, exception); |
|
|
1173 | croak (0); |
|
|
1174 | } |
|
|
1175 | } |
|
|
1176 | } |
1393 | } |
1177 | } |
1394 | } |
1178 | |
1395 | |
1179 | struct transfer_args |
|
|
1180 | { |
|
|
1181 | struct coro *prev, *next; |
|
|
1182 | }; |
|
|
1183 | |
|
|
1184 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1396 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1185 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1397 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1186 | |
1398 | |
1187 | /** high level stuff ********************************************************/ |
1399 | /** high level stuff ********************************************************/ |
1188 | |
1400 | |
1189 | static int |
1401 | static int |
1190 | coro_state_destroy (pTHX_ struct coro *coro) |
1402 | coro_state_destroy (pTHX_ struct coro *coro) |
1191 | { |
1403 | { |
1192 | if (coro->flags & CF_DESTROYED) |
1404 | if (coro->flags & CF_DESTROYED) |
1193 | return 0; |
1405 | return 0; |
|
|
1406 | |
|
|
1407 | if (coro->on_destroy) |
|
|
1408 | coro->on_destroy (aTHX_ coro); |
1194 | |
1409 | |
1195 | coro->flags |= CF_DESTROYED; |
1410 | coro->flags |= CF_DESTROYED; |
1196 | |
1411 | |
1197 | if (coro->flags & CF_READY) |
1412 | if (coro->flags & CF_READY) |
1198 | { |
1413 | { |
1199 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1414 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1200 | /* alternative: look through all ready queues and remove the coro */ |
1415 | /* alternative: look through all ready queues and remove the coro */ |
1201 | LOCK; |
|
|
1202 | --coro_nready; |
1416 | --coro_nready; |
1203 | UNLOCK; |
|
|
1204 | } |
1417 | } |
1205 | else |
1418 | else |
1206 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1419 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1207 | |
1420 | |
1208 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1421 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1209 | { |
1422 | { |
1210 | struct coro temp; |
1423 | struct coro temp; |
1211 | |
1424 | |
1212 | if (coro->flags & CF_RUNNING) |
1425 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1213 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1214 | |
1426 | |
1215 | save_perl (aTHX_ &temp); |
1427 | save_perl (aTHX_ &temp); |
1216 | load_perl (aTHX_ coro); |
1428 | load_perl (aTHX_ coro); |
1217 | |
1429 | |
1218 | coro_destroy (aTHX_ coro); |
1430 | coro_destruct (aTHX_ coro); |
1219 | |
1431 | |
1220 | load_perl (aTHX_ &temp); |
1432 | load_perl (aTHX_ &temp); |
1221 | |
1433 | |
1222 | coro->slot = 0; |
1434 | coro->slot = 0; |
1223 | } |
1435 | } |
… | |
… | |
1269 | # define MGf_DUP 0 |
1481 | # define MGf_DUP 0 |
1270 | #endif |
1482 | #endif |
1271 | }; |
1483 | }; |
1272 | |
1484 | |
1273 | static void |
1485 | static void |
1274 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1486 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1275 | { |
1487 | { |
1276 | ta->prev = SvSTATE (prev_sv); |
1488 | ta->prev = SvSTATE (prev_sv); |
1277 | ta->next = SvSTATE (next_sv); |
1489 | ta->next = SvSTATE (next_sv); |
1278 | TRANSFER_CHECK (*ta); |
1490 | TRANSFER_CHECK (*ta); |
1279 | } |
1491 | } |
1280 | |
1492 | |
1281 | static void |
1493 | static void |
1282 | api_transfer (SV *prev_sv, SV *next_sv) |
1494 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1283 | { |
1495 | { |
1284 | dTHX; |
|
|
1285 | struct transfer_args ta; |
1496 | struct coro_transfer_args ta; |
1286 | |
1497 | |
1287 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1498 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1288 | TRANSFER (ta); |
1499 | TRANSFER (ta, 1); |
1289 | } |
1500 | } |
1290 | |
1501 | |
1291 | /** Coro ********************************************************************/ |
1502 | /** Coro ********************************************************************/ |
1292 | |
1503 | |
1293 | static void |
1504 | INLINE void |
1294 | coro_enq (pTHX_ SV *coro_sv) |
1505 | coro_enq (pTHX_ struct coro *coro) |
1295 | { |
1506 | { |
1296 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1507 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1297 | } |
1508 | } |
1298 | |
1509 | |
1299 | static SV * |
1510 | INLINE SV * |
1300 | coro_deq (pTHX_ int min_prio) |
1511 | coro_deq (pTHX) |
1301 | { |
1512 | { |
1302 | int prio = PRIO_MAX - PRIO_MIN; |
1513 | int prio; |
1303 | |
1514 | |
1304 | min_prio -= PRIO_MIN; |
|
|
1305 | if (min_prio < 0) |
|
|
1306 | min_prio = 0; |
|
|
1307 | |
|
|
1308 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1515 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1309 | if (AvFILLp (coro_ready [prio]) >= 0) |
1516 | if (AvFILLp (coro_ready [prio]) >= 0) |
1310 | return av_shift (coro_ready [prio]); |
1517 | return av_shift (coro_ready [prio]); |
1311 | |
1518 | |
1312 | return 0; |
1519 | return 0; |
1313 | } |
1520 | } |
1314 | |
1521 | |
1315 | static int |
1522 | static int |
1316 | api_ready (SV *coro_sv) |
1523 | api_ready (pTHX_ SV *coro_sv) |
1317 | { |
1524 | { |
1318 | dTHX; |
|
|
1319 | struct coro *coro; |
1525 | struct coro *coro; |
|
|
1526 | SV *sv_hook; |
|
|
1527 | void (*xs_hook)(void); |
1320 | |
1528 | |
1321 | if (SvROK (coro_sv)) |
1529 | if (SvROK (coro_sv)) |
1322 | coro_sv = SvRV (coro_sv); |
1530 | coro_sv = SvRV (coro_sv); |
1323 | |
1531 | |
1324 | coro = SvSTATE (coro_sv); |
1532 | coro = SvSTATE (coro_sv); |
… | |
… | |
1326 | if (coro->flags & CF_READY) |
1534 | if (coro->flags & CF_READY) |
1327 | return 0; |
1535 | return 0; |
1328 | |
1536 | |
1329 | coro->flags |= CF_READY; |
1537 | coro->flags |= CF_READY; |
1330 | |
1538 | |
1331 | LOCK; |
1539 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1332 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1540 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1541 | |
|
|
1542 | coro_enq (aTHX_ coro); |
1333 | ++coro_nready; |
1543 | ++coro_nready; |
1334 | UNLOCK; |
1544 | |
|
|
1545 | if (sv_hook) |
|
|
1546 | { |
|
|
1547 | dSP; |
|
|
1548 | |
|
|
1549 | ENTER; |
|
|
1550 | SAVETMPS; |
|
|
1551 | |
|
|
1552 | PUSHMARK (SP); |
|
|
1553 | PUTBACK; |
|
|
1554 | call_sv (sv_hook, G_VOID | G_DISCARD); |
|
|
1555 | |
|
|
1556 | FREETMPS; |
|
|
1557 | LEAVE; |
|
|
1558 | } |
|
|
1559 | |
|
|
1560 | if (xs_hook) |
|
|
1561 | xs_hook (); |
1335 | |
1562 | |
1336 | return 1; |
1563 | return 1; |
1337 | } |
1564 | } |
1338 | |
1565 | |
1339 | static int |
1566 | static int |
1340 | api_is_ready (SV *coro_sv) |
1567 | api_is_ready (pTHX_ SV *coro_sv) |
1341 | { |
1568 | { |
1342 | dTHX; |
|
|
1343 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1569 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1344 | } |
1570 | } |
1345 | |
1571 | |
1346 | static void |
1572 | INLINE void |
1347 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1573 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1348 | { |
1574 | { |
1349 | SV *prev_sv, *next_sv; |
1575 | SV *prev_sv, *next_sv; |
1350 | |
1576 | |
1351 | for (;;) |
1577 | for (;;) |
1352 | { |
1578 | { |
1353 | LOCK; |
|
|
1354 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
1579 | next_sv = coro_deq (aTHX); |
1355 | |
1580 | |
1356 | /* nothing to schedule: call the idle handler */ |
1581 | /* nothing to schedule: call the idle handler */ |
1357 | if (expect_false (!next_sv)) |
1582 | if (expect_false (!next_sv)) |
1358 | { |
1583 | { |
1359 | dSP; |
1584 | dSP; |
1360 | UNLOCK; |
|
|
1361 | |
1585 | |
1362 | ENTER; |
1586 | ENTER; |
1363 | SAVETMPS; |
1587 | SAVETMPS; |
1364 | |
1588 | |
1365 | PUSHMARK (SP); |
1589 | PUSHMARK (SP); |
1366 | PUTBACK; |
1590 | PUTBACK; |
1367 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1591 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1368 | |
1592 | |
1369 | FREETMPS; |
1593 | FREETMPS; |
1370 | LEAVE; |
1594 | LEAVE; |
1371 | continue; |
1595 | continue; |
1372 | } |
1596 | } |
1373 | |
1597 | |
1374 | ta->next = SvSTATE (next_sv); |
1598 | ta->next = SvSTATE_hv (next_sv); |
1375 | |
1599 | |
1376 | /* cannot transfer to destroyed coros, skip and look for next */ |
1600 | /* cannot transfer to destroyed coros, skip and look for next */ |
1377 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1601 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1378 | { |
1602 | { |
1379 | UNLOCK; |
|
|
1380 | SvREFCNT_dec (next_sv); |
1603 | SvREFCNT_dec (next_sv); |
1381 | /* coro_nready is already taken care of by destroy */ |
1604 | /* coro_nready has already been taken care of by destroy */ |
1382 | continue; |
1605 | continue; |
1383 | } |
1606 | } |
1384 | |
1607 | |
1385 | --coro_nready; |
1608 | --coro_nready; |
1386 | UNLOCK; |
|
|
1387 | break; |
1609 | break; |
1388 | } |
1610 | } |
1389 | |
1611 | |
1390 | /* free this only after the transfer */ |
1612 | /* free this only after the transfer */ |
1391 | prev_sv = SvRV (coro_current); |
1613 | prev_sv = SvRV (coro_current); |
1392 | ta->prev = SvSTATE (prev_sv); |
1614 | ta->prev = SvSTATE_hv (prev_sv); |
1393 | TRANSFER_CHECK (*ta); |
1615 | TRANSFER_CHECK (*ta); |
1394 | assert (ta->next->flags & CF_READY); |
1616 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1395 | ta->next->flags &= ~CF_READY; |
1617 | ta->next->flags &= ~CF_READY; |
1396 | SvRV_set (coro_current, next_sv); |
1618 | SvRV_set (coro_current, next_sv); |
1397 | |
1619 | |
1398 | LOCK; |
|
|
1399 | free_coro_mortal (aTHX); |
1620 | free_coro_mortal (aTHX); |
1400 | coro_mortal = prev_sv; |
1621 | coro_mortal = prev_sv; |
1401 | UNLOCK; |
|
|
1402 | } |
1622 | } |
1403 | |
1623 | |
1404 | static void |
1624 | INLINE void |
1405 | prepare_cede (pTHX_ struct transfer_args *ta) |
1625 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1406 | { |
1626 | { |
1407 | api_ready (coro_current); |
1627 | api_ready (aTHX_ coro_current); |
1408 | prepare_schedule (aTHX_ ta); |
1628 | prepare_schedule (aTHX_ ta); |
1409 | } |
1629 | } |
1410 | |
1630 | |
|
|
1631 | INLINE void |
|
|
1632 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1633 | { |
|
|
1634 | SV *prev = SvRV (coro_current); |
|
|
1635 | |
|
|
1636 | if (coro_nready) |
|
|
1637 | { |
|
|
1638 | prepare_schedule (aTHX_ ta); |
|
|
1639 | api_ready (aTHX_ prev); |
|
|
1640 | } |
|
|
1641 | else |
|
|
1642 | prepare_nop (aTHX_ ta); |
|
|
1643 | } |
|
|
1644 | |
|
|
1645 | static void |
|
|
1646 | api_schedule (pTHX) |
|
|
1647 | { |
|
|
1648 | struct coro_transfer_args ta; |
|
|
1649 | |
|
|
1650 | prepare_schedule (aTHX_ &ta); |
|
|
1651 | TRANSFER (ta, 1); |
|
|
1652 | } |
|
|
1653 | |
1411 | static int |
1654 | static int |
1412 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1655 | api_cede (pTHX) |
1413 | { |
1656 | { |
1414 | if (coro_nready) |
1657 | struct coro_transfer_args ta; |
1415 | { |
1658 | |
1416 | SV *prev = SvRV (coro_current); |
|
|
1417 | prepare_schedule (aTHX_ ta); |
1659 | prepare_cede (aTHX_ &ta); |
1418 | api_ready (prev); |
1660 | |
|
|
1661 | if (expect_true (ta.prev != ta.next)) |
|
|
1662 | { |
|
|
1663 | TRANSFER (ta, 1); |
1419 | return 1; |
1664 | return 1; |
1420 | } |
1665 | } |
1421 | else |
1666 | else |
1422 | return 0; |
1667 | return 0; |
1423 | } |
1668 | } |
1424 | |
1669 | |
1425 | static void |
|
|
1426 | api_schedule (void) |
|
|
1427 | { |
|
|
1428 | dTHX; |
|
|
1429 | struct transfer_args ta; |
|
|
1430 | |
|
|
1431 | prepare_schedule (aTHX_ &ta); |
|
|
1432 | TRANSFER (ta); |
|
|
1433 | } |
|
|
1434 | |
|
|
1435 | static int |
1670 | static int |
1436 | api_cede (void) |
1671 | api_cede_notself (pTHX) |
1437 | { |
1672 | { |
1438 | dTHX; |
1673 | if (coro_nready) |
|
|
1674 | { |
1439 | struct transfer_args ta; |
1675 | struct coro_transfer_args ta; |
1440 | |
1676 | |
1441 | prepare_cede (aTHX_ &ta); |
1677 | prepare_cede_notself (aTHX_ &ta); |
1442 | |
|
|
1443 | if (expect_true (ta.prev != ta.next)) |
|
|
1444 | { |
|
|
1445 | TRANSFER (ta); |
1678 | TRANSFER (ta, 1); |
1446 | return 1; |
1679 | return 1; |
1447 | } |
1680 | } |
1448 | else |
1681 | else |
1449 | return 0; |
1682 | return 0; |
1450 | } |
1683 | } |
1451 | |
1684 | |
1452 | static int |
1685 | static void |
1453 | api_cede_notself (void) |
|
|
1454 | { |
|
|
1455 | dTHX; |
|
|
1456 | struct transfer_args ta; |
|
|
1457 | |
|
|
1458 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1459 | { |
|
|
1460 | TRANSFER (ta); |
|
|
1461 | return 1; |
|
|
1462 | } |
|
|
1463 | else |
|
|
1464 | return 0; |
|
|
1465 | } |
|
|
1466 | |
|
|
1467 | static void |
|
|
1468 | api_trace (SV *coro_sv, int flags) |
1686 | api_trace (pTHX_ SV *coro_sv, int flags) |
1469 | { |
1687 | { |
1470 | dTHX; |
|
|
1471 | struct coro *coro = SvSTATE (coro_sv); |
1688 | struct coro *coro = SvSTATE (coro_sv); |
1472 | |
1689 | |
1473 | if (flags & CC_TRACE) |
1690 | if (flags & CC_TRACE) |
1474 | { |
1691 | { |
1475 | if (!coro->cctx) |
1692 | if (!coro->cctx) |
1476 | coro->cctx = cctx_new (); |
1693 | coro->cctx = cctx_new_run (); |
1477 | else if (!(coro->cctx->flags & CC_TRACE)) |
1694 | else if (!(coro->cctx->flags & CC_TRACE)) |
1478 | croak ("cannot enable tracing on coroutine with custom stack"); |
1695 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1479 | |
1696 | |
1480 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1697 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1481 | } |
1698 | } |
1482 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1699 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1483 | { |
1700 | { |
… | |
… | |
1488 | else |
1705 | else |
1489 | coro->slot->runops = RUNOPS_DEFAULT; |
1706 | coro->slot->runops = RUNOPS_DEFAULT; |
1490 | } |
1707 | } |
1491 | } |
1708 | } |
1492 | |
1709 | |
|
|
1710 | /*****************************************************************************/ |
|
|
1711 | /* schedule-like-function opcode (SLF) */ |
|
|
1712 | |
|
|
1713 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1714 | static const CV *slf_cv; |
|
|
1715 | static SV **slf_argv; |
|
|
1716 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1717 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1718 | |
|
|
1719 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1720 | /* recreate the stack frame as perl will on following calls */ |
|
|
1721 | /* since entersub cleared the stack */ |
|
|
1722 | static OP * |
|
|
1723 | pp_restore (pTHX) |
|
|
1724 | { |
|
|
1725 | int i; |
|
|
1726 | SV **SP = PL_stack_base + slf_ax; |
|
|
1727 | |
|
|
1728 | PUSHMARK (SP); |
|
|
1729 | |
|
|
1730 | EXTEND (SP, slf_argc + 1); |
|
|
1731 | |
|
|
1732 | for (i = 0; i < slf_argc; ++i) |
|
|
1733 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1734 | |
|
|
1735 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1736 | |
|
|
1737 | RETURNOP (slf_restore.op_first); |
|
|
1738 | } |
|
|
1739 | |
|
|
1740 | static void |
|
|
1741 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1742 | { |
|
|
1743 | SV **arg = (SV **)slf_frame.data; |
|
|
1744 | |
|
|
1745 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1746 | } |
|
|
1747 | |
|
|
1748 | static void |
|
|
1749 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1750 | { |
|
|
1751 | if (items != 2) |
|
|
1752 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1753 | |
|
|
1754 | frame->prepare = slf_prepare_transfer; |
|
|
1755 | frame->check = slf_check_nop; |
|
|
1756 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1757 | } |
|
|
1758 | |
|
|
1759 | static void |
|
|
1760 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1761 | { |
|
|
1762 | frame->prepare = prepare_schedule; |
|
|
1763 | frame->check = slf_check_nop; |
|
|
1764 | } |
|
|
1765 | |
|
|
1766 | static void |
|
|
1767 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1768 | { |
|
|
1769 | frame->prepare = prepare_cede; |
|
|
1770 | frame->check = slf_check_nop; |
|
|
1771 | } |
|
|
1772 | |
|
|
1773 | static void |
|
|
1774 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1775 | { |
|
|
1776 | frame->prepare = prepare_cede_notself; |
|
|
1777 | frame->check = slf_check_nop; |
|
|
1778 | } |
|
|
1779 | |
|
|
1780 | /* |
|
|
1781 | * these not obviously related functions are all rolled into one |
|
|
1782 | * function to increase chances that they all will call transfer with the same |
|
|
1783 | * stack offset |
|
|
1784 | * SLF stands for "schedule-like-function". |
|
|
1785 | */ |
|
|
1786 | static OP * |
|
|
1787 | pp_slf (pTHX) |
|
|
1788 | { |
|
|
1789 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1790 | |
|
|
1791 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1792 | /* the latter happens when a new coro has been started */ |
|
|
1793 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1794 | if (expect_true (!slf_frame.prepare)) |
|
|
1795 | { |
|
|
1796 | /* first iteration */ |
|
|
1797 | dSP; |
|
|
1798 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1799 | int items = SP - arg; /* args without function object */ |
|
|
1800 | SV *gv = *sp; |
|
|
1801 | |
|
|
1802 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1803 | /* for us, divert to the real entersub */ |
|
|
1804 | if (SvTYPE (gv) != SVt_PVGV |
|
|
1805 | || !GvCV (gv) |
|
|
1806 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1807 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1808 | |
|
|
1809 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1810 | { |
|
|
1811 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1812 | AV *av = GvAV (PL_defgv); |
|
|
1813 | arg = AvARRAY (av); |
|
|
1814 | items = AvFILLp (av) + 1; |
|
|
1815 | } |
|
|
1816 | |
|
|
1817 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1818 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1819 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1820 | |
|
|
1821 | /* pop args */ |
|
|
1822 | SP = PL_stack_base + POPMARK; |
|
|
1823 | |
|
|
1824 | PUTBACK; |
|
|
1825 | } |
|
|
1826 | |
|
|
1827 | /* now that we have a slf_frame, interpret it! */ |
|
|
1828 | /* we use a callback system not to make the code needlessly */ |
|
|
1829 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1830 | |
|
|
1831 | do |
|
|
1832 | { |
|
|
1833 | struct coro_transfer_args ta; |
|
|
1834 | |
|
|
1835 | slf_frame.prepare (aTHX_ &ta); |
|
|
1836 | TRANSFER (ta, 0); |
|
|
1837 | |
|
|
1838 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1839 | } |
|
|
1840 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1841 | |
|
|
1842 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1843 | |
|
|
1844 | /* exception handling */ |
|
|
1845 | if (expect_false (CORO_THROW)) |
|
|
1846 | { |
|
|
1847 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
1848 | |
|
|
1849 | CORO_THROW = 0; |
|
|
1850 | sv_setsv (ERRSV, exception); |
|
|
1851 | croak (0); |
|
|
1852 | } |
|
|
1853 | |
|
|
1854 | /* return value handling - mostly like entersub */ |
|
|
1855 | /* make sure we put something on the stack in scalar context */ |
|
|
1856 | if (GIMME_V == G_SCALAR) |
|
|
1857 | { |
|
|
1858 | dSP; |
|
|
1859 | SV **bot = PL_stack_base + checkmark; |
|
|
1860 | |
|
|
1861 | if (sp == bot) /* too few, push undef */ |
|
|
1862 | bot [1] = &PL_sv_undef; |
|
|
1863 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
1864 | bot [1] = *sp; |
|
|
1865 | |
|
|
1866 | SP = bot + 1; |
|
|
1867 | |
|
|
1868 | PUTBACK; |
|
|
1869 | } |
|
|
1870 | |
|
|
1871 | return NORMAL; |
|
|
1872 | } |
|
|
1873 | |
|
|
1874 | static void |
|
|
1875 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1876 | { |
|
|
1877 | int i; |
|
|
1878 | SV **arg = PL_stack_base + ax; |
|
|
1879 | int items = PL_stack_sp - arg + 1; |
|
|
1880 | |
|
|
1881 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1882 | |
|
|
1883 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1884 | && PL_op->op_ppaddr != pp_slf) |
|
|
1885 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1886 | |
|
|
1887 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1888 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1889 | slf_cv = cv; |
|
|
1890 | |
|
|
1891 | /* we patch the op, and then re-run the whole call */ |
|
|
1892 | /* we have to put the same argument on the stack for this to work */ |
|
|
1893 | /* and this will be done by pp_restore */ |
|
|
1894 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1895 | slf_restore.op_type = OP_CUSTOM; |
|
|
1896 | slf_restore.op_ppaddr = pp_restore; |
|
|
1897 | slf_restore.op_first = PL_op; |
|
|
1898 | |
|
|
1899 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1900 | |
|
|
1901 | if (PL_op->op_flags & OPf_STACKED) |
|
|
1902 | { |
|
|
1903 | if (items > slf_arga) |
|
|
1904 | { |
|
|
1905 | slf_arga = items; |
|
|
1906 | free (slf_argv); |
|
|
1907 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
1908 | } |
|
|
1909 | |
|
|
1910 | slf_argc = items; |
|
|
1911 | |
|
|
1912 | for (i = 0; i < items; ++i) |
|
|
1913 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
1914 | } |
|
|
1915 | else |
|
|
1916 | slf_argc = 0; |
|
|
1917 | |
|
|
1918 | PL_op->op_ppaddr = pp_slf; |
|
|
1919 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
1920 | |
|
|
1921 | PL_op = (OP *)&slf_restore; |
|
|
1922 | } |
|
|
1923 | |
|
|
1924 | /*****************************************************************************/ |
|
|
1925 | /* PerlIO::cede */ |
|
|
1926 | |
|
|
1927 | typedef struct |
|
|
1928 | { |
|
|
1929 | PerlIOBuf base; |
|
|
1930 | NV next, every; |
|
|
1931 | } PerlIOCede; |
|
|
1932 | |
|
|
1933 | static IV |
|
|
1934 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
1935 | { |
|
|
1936 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1937 | |
|
|
1938 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
1939 | self->next = nvtime () + self->every; |
|
|
1940 | |
|
|
1941 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
1942 | } |
|
|
1943 | |
|
|
1944 | static SV * |
|
|
1945 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
1946 | { |
|
|
1947 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1948 | |
|
|
1949 | return newSVnv (self->every); |
|
|
1950 | } |
|
|
1951 | |
|
|
1952 | static IV |
|
|
1953 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
1954 | { |
|
|
1955 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1956 | double now = nvtime (); |
|
|
1957 | |
|
|
1958 | if (now >= self->next) |
|
|
1959 | { |
|
|
1960 | api_cede (aTHX); |
|
|
1961 | self->next = now + self->every; |
|
|
1962 | } |
|
|
1963 | |
|
|
1964 | return PerlIOBuf_flush (aTHX_ f); |
|
|
1965 | } |
|
|
1966 | |
|
|
1967 | static PerlIO_funcs PerlIO_cede = |
|
|
1968 | { |
|
|
1969 | sizeof(PerlIO_funcs), |
|
|
1970 | "cede", |
|
|
1971 | sizeof(PerlIOCede), |
|
|
1972 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
1973 | PerlIOCede_pushed, |
|
|
1974 | PerlIOBuf_popped, |
|
|
1975 | PerlIOBuf_open, |
|
|
1976 | PerlIOBase_binmode, |
|
|
1977 | PerlIOCede_getarg, |
|
|
1978 | PerlIOBase_fileno, |
|
|
1979 | PerlIOBuf_dup, |
|
|
1980 | PerlIOBuf_read, |
|
|
1981 | PerlIOBuf_unread, |
|
|
1982 | PerlIOBuf_write, |
|
|
1983 | PerlIOBuf_seek, |
|
|
1984 | PerlIOBuf_tell, |
|
|
1985 | PerlIOBuf_close, |
|
|
1986 | PerlIOCede_flush, |
|
|
1987 | PerlIOBuf_fill, |
|
|
1988 | PerlIOBase_eof, |
|
|
1989 | PerlIOBase_error, |
|
|
1990 | PerlIOBase_clearerr, |
|
|
1991 | PerlIOBase_setlinebuf, |
|
|
1992 | PerlIOBuf_get_base, |
|
|
1993 | PerlIOBuf_bufsiz, |
|
|
1994 | PerlIOBuf_get_ptr, |
|
|
1995 | PerlIOBuf_get_cnt, |
|
|
1996 | PerlIOBuf_set_ptrcnt, |
|
|
1997 | }; |
|
|
1998 | |
|
|
1999 | /*****************************************************************************/ |
|
|
2000 | /* Coro::Semaphore */ |
|
|
2001 | |
|
|
2002 | static void |
|
|
2003 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2004 | { |
|
|
2005 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2006 | IV count = SvIVX (count_sv); |
|
|
2007 | |
|
|
2008 | count += adjust; |
|
|
2009 | SvIVX (count_sv) = count; |
|
|
2010 | |
|
|
2011 | /* now wake up as many waiters as are expected to lock */ |
|
|
2012 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2013 | { |
|
|
2014 | SV *cb; |
|
|
2015 | |
|
|
2016 | /* swap first two elements so we can shift a waiter */ |
|
|
2017 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2018 | AvARRAY (av)[1] = count_sv; |
|
|
2019 | cb = av_shift (av); |
|
|
2020 | |
|
|
2021 | if (SvOBJECT (cb)) |
|
|
2022 | api_ready (aTHX_ cb); |
|
|
2023 | else |
|
|
2024 | croak ("callbacks not yet supported"); |
|
|
2025 | |
|
|
2026 | SvREFCNT_dec (cb); |
|
|
2027 | |
|
|
2028 | --count; |
|
|
2029 | } |
|
|
2030 | } |
|
|
2031 | |
|
|
2032 | static void |
|
|
2033 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2034 | { |
|
|
2035 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2036 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2037 | } |
|
|
2038 | |
|
|
2039 | static int |
|
|
2040 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2041 | { |
|
|
2042 | AV *av = (AV *)frame->data; |
|
|
2043 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2044 | |
|
|
2045 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2046 | if (CORO_THROW) |
|
|
2047 | return 0; |
|
|
2048 | else if (SvIVX (count_sv) > 0) |
|
|
2049 | { |
|
|
2050 | SvSTATE_current->on_destroy = 0; |
|
|
2051 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2052 | return 0; |
|
|
2053 | } |
|
|
2054 | else |
|
|
2055 | { |
|
|
2056 | int i; |
|
|
2057 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2058 | /* waiters list and only add us if we aren't in there already */ |
|
|
2059 | /* this avoids some degenerate memory usage cases */ |
|
|
2060 | |
|
|
2061 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2062 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2063 | return 1; |
|
|
2064 | |
|
|
2065 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2066 | return 1; |
|
|
2067 | } |
|
|
2068 | } |
|
|
2069 | |
|
|
2070 | static void |
|
|
2071 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2072 | { |
|
|
2073 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2074 | |
|
|
2075 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2076 | { |
|
|
2077 | frame->data = (void *)av; |
|
|
2078 | frame->prepare = prepare_nop; |
|
|
2079 | } |
|
|
2080 | else |
|
|
2081 | { |
|
|
2082 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2083 | |
|
|
2084 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2085 | frame->prepare = prepare_schedule; |
|
|
2086 | |
|
|
2087 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2088 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2089 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2090 | } |
|
|
2091 | |
|
|
2092 | frame->check = slf_check_semaphore_down; |
|
|
2093 | |
|
|
2094 | } |
|
|
2095 | |
|
|
2096 | /*****************************************************************************/ |
|
|
2097 | /* gensub: simple closure generation utility */ |
|
|
2098 | |
|
|
2099 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
2100 | |
|
|
2101 | /* create a closure from XS, returns a code reference */ |
|
|
2102 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
2103 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
2104 | static SV * |
|
|
2105 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
2106 | { |
|
|
2107 | CV *cv = (CV *)newSV (0); |
|
|
2108 | |
|
|
2109 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
2110 | |
|
|
2111 | CvANON_on (cv); |
|
|
2112 | CvISXSUB_on (cv); |
|
|
2113 | CvXSUB (cv) = xsub; |
|
|
2114 | GENSUB_ARG = arg; |
|
|
2115 | |
|
|
2116 | return newRV_noinc ((SV *)cv); |
|
|
2117 | } |
|
|
2118 | |
|
|
2119 | /*****************************************************************************/ |
|
|
2120 | /* Coro::AIO */ |
|
|
2121 | |
|
|
2122 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2123 | |
|
|
2124 | /* helper storage struct */ |
|
|
2125 | struct io_state |
|
|
2126 | { |
|
|
2127 | int errorno; |
|
|
2128 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2129 | int laststatval; |
|
|
2130 | Stat_t statcache; |
|
|
2131 | }; |
|
|
2132 | |
|
|
2133 | static void |
|
|
2134 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2135 | { |
|
|
2136 | dXSARGS; |
|
|
2137 | AV *state = (AV *)GENSUB_ARG; |
|
|
2138 | SV *coro = av_pop (state); |
|
|
2139 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2140 | |
|
|
2141 | av_extend (state, items); |
|
|
2142 | |
|
|
2143 | sv_upgrade (data_sv, SVt_PV); |
|
|
2144 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2145 | SvPOK_only (data_sv); |
|
|
2146 | |
|
|
2147 | { |
|
|
2148 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2149 | |
|
|
2150 | data->errorno = errno; |
|
|
2151 | data->laststype = PL_laststype; |
|
|
2152 | data->laststatval = PL_laststatval; |
|
|
2153 | data->statcache = PL_statcache; |
|
|
2154 | } |
|
|
2155 | |
|
|
2156 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2157 | { |
|
|
2158 | int i; |
|
|
2159 | |
|
|
2160 | for (i = 0; i < items; ++i) |
|
|
2161 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2162 | } |
|
|
2163 | |
|
|
2164 | av_push (state, data_sv); |
|
|
2165 | |
|
|
2166 | api_ready (aTHX_ coro); |
|
|
2167 | SvREFCNT_dec (coro); |
|
|
2168 | SvREFCNT_dec ((AV *)state); |
|
|
2169 | } |
|
|
2170 | |
|
|
2171 | static int |
|
|
2172 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2173 | { |
|
|
2174 | AV *state = (AV *)frame->data; |
|
|
2175 | |
|
|
2176 | /* if we are about to throw, return early */ |
|
|
2177 | /* this does not cancel the aio request, but at least */ |
|
|
2178 | /* it quickly returns */ |
|
|
2179 | if (CORO_THROW) |
|
|
2180 | return 0; |
|
|
2181 | |
|
|
2182 | /* one element that is an RV? repeat! */ |
|
|
2183 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2184 | return 1; |
|
|
2185 | |
|
|
2186 | /* restore status */ |
|
|
2187 | { |
|
|
2188 | SV *data_sv = av_pop (state); |
|
|
2189 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2190 | |
|
|
2191 | errno = data->errorno; |
|
|
2192 | PL_laststype = data->laststype; |
|
|
2193 | PL_laststatval = data->laststatval; |
|
|
2194 | PL_statcache = data->statcache; |
|
|
2195 | |
|
|
2196 | SvREFCNT_dec (data_sv); |
|
|
2197 | } |
|
|
2198 | |
|
|
2199 | /* push result values */ |
|
|
2200 | { |
|
|
2201 | dSP; |
|
|
2202 | int i; |
|
|
2203 | |
|
|
2204 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2205 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2206 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2207 | |
|
|
2208 | PUTBACK; |
|
|
2209 | } |
|
|
2210 | |
|
|
2211 | return 0; |
|
|
2212 | } |
|
|
2213 | |
|
|
2214 | static void |
|
|
2215 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2216 | { |
|
|
2217 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2218 | SV *coro_hv = SvRV (coro_current); |
|
|
2219 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2220 | |
|
|
2221 | /* put our coroutine id on the state arg */ |
|
|
2222 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2223 | |
|
|
2224 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2225 | if (coro->prio) |
|
|
2226 | { |
|
|
2227 | dSP; |
|
|
2228 | |
|
|
2229 | static SV *prio_cv; |
|
|
2230 | static SV *prio_sv; |
|
|
2231 | |
|
|
2232 | if (expect_false (!prio_cv)) |
|
|
2233 | { |
|
|
2234 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2235 | prio_sv = newSViv (0); |
|
|
2236 | } |
|
|
2237 | |
|
|
2238 | PUSHMARK (SP); |
|
|
2239 | sv_setiv (prio_sv, coro->prio); |
|
|
2240 | XPUSHs (prio_sv); |
|
|
2241 | |
|
|
2242 | PUTBACK; |
|
|
2243 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2244 | } |
|
|
2245 | |
|
|
2246 | /* now call the original request */ |
|
|
2247 | { |
|
|
2248 | dSP; |
|
|
2249 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2250 | int i; |
|
|
2251 | |
|
|
2252 | PUSHMARK (SP); |
|
|
2253 | |
|
|
2254 | /* first push all args to the stack */ |
|
|
2255 | EXTEND (SP, items + 1); |
|
|
2256 | |
|
|
2257 | for (i = 0; i < items; ++i) |
|
|
2258 | PUSHs (arg [i]); |
|
|
2259 | |
|
|
2260 | /* now push the callback closure */ |
|
|
2261 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2262 | |
|
|
2263 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2264 | PUTBACK; |
|
|
2265 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2266 | } |
|
|
2267 | |
|
|
2268 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2269 | frame->data = (void *)state; |
|
|
2270 | frame->prepare = prepare_schedule; |
|
|
2271 | frame->check = slf_check_aio_req; |
|
|
2272 | } |
|
|
2273 | |
|
|
2274 | static void |
|
|
2275 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2276 | { |
|
|
2277 | dXSARGS; |
|
|
2278 | |
|
|
2279 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2280 | |
|
|
2281 | XSRETURN_EMPTY; |
|
|
2282 | } |
|
|
2283 | |
|
|
2284 | /*****************************************************************************/ |
|
|
2285 | |
1493 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2286 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1494 | |
2287 | |
1495 | PROTOTYPES: DISABLE |
2288 | PROTOTYPES: DISABLE |
1496 | |
2289 | |
1497 | BOOT: |
2290 | BOOT: |
1498 | { |
2291 | { |
1499 | #ifdef USE_ITHREADS |
2292 | #ifdef USE_ITHREADS |
1500 | MUTEX_INIT (&coro_mutex); |
2293 | # if CORO_PTHREAD |
|
|
2294 | coro_thx = PERL_GET_CONTEXT; |
|
|
2295 | # endif |
1501 | #endif |
2296 | #endif |
1502 | BOOT_PAGESIZE; |
2297 | BOOT_PAGESIZE; |
1503 | |
2298 | |
1504 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2299 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1505 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2300 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1506 | |
2301 | |
|
|
2302 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
2303 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
2304 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
2305 | |
1507 | hv_sig = coro_get_hv ("SIG", TRUE); |
2306 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
1508 | sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE); |
2307 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
1509 | sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE); |
2308 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1510 | |
|
|
1511 | if (!PL_diehook ) hv_store (hv_sig, strpair ("__DIE__" ), SvREFCNT_inc (sv_diehook ), 0); |
|
|
1512 | if (!PL_warnhook) hv_store (hv_sig, strpair ("__WARN__"), SvREFCNT_inc (sv_warnhook), 0); |
|
|
1513 | |
2309 | |
1514 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
2310 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1515 | |
2311 | |
1516 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
2312 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1517 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
2313 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
… | |
… | |
1522 | main_top_env = PL_top_env; |
2318 | main_top_env = PL_top_env; |
1523 | |
2319 | |
1524 | while (main_top_env->je_prev) |
2320 | while (main_top_env->je_prev) |
1525 | main_top_env = main_top_env->je_prev; |
2321 | main_top_env = main_top_env->je_prev; |
1526 | |
2322 | |
|
|
2323 | { |
|
|
2324 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2325 | |
|
|
2326 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2327 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2328 | newSVpv ("coro_slf", 0), 0); |
|
|
2329 | |
|
|
2330 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2331 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2332 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2333 | } |
|
|
2334 | |
1527 | coroapi.ver = CORO_API_VERSION; |
2335 | coroapi.ver = CORO_API_VERSION; |
|
|
2336 | coroapi.rev = CORO_API_REVISION; |
|
|
2337 | |
1528 | coroapi.transfer = api_transfer; |
2338 | coroapi.transfer = api_transfer; |
|
|
2339 | |
|
|
2340 | coroapi.sv_state = SvSTATE_; |
|
|
2341 | coroapi.execute_slf = api_execute_slf; |
|
|
2342 | coroapi.prepare_nop = prepare_nop; |
|
|
2343 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2344 | coroapi.prepare_cede = prepare_cede; |
|
|
2345 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
2346 | |
|
|
2347 | { |
|
|
2348 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
2349 | |
|
|
2350 | if (!svp) croak ("Time::HiRes is required"); |
|
|
2351 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
2352 | |
|
|
2353 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
2354 | } |
1529 | |
2355 | |
1530 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2356 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1531 | } |
2357 | } |
1532 | |
2358 | |
1533 | SV * |
2359 | SV * |
1534 | new (char *klass, ...) |
2360 | new (char *klass, ...) |
1535 | CODE: |
2361 | CODE: |
1536 | { |
2362 | { |
1537 | struct coro *coro; |
2363 | struct coro *coro; |
|
|
2364 | MAGIC *mg; |
1538 | HV *hv; |
2365 | HV *hv; |
1539 | int i; |
2366 | int i; |
1540 | |
2367 | |
1541 | Newz (0, coro, 1, struct coro); |
2368 | Newz (0, coro, 1, struct coro); |
1542 | coro->args = newAV (); |
2369 | coro->args = newAV (); |
… | |
… | |
1545 | if (coro_first) coro_first->prev = coro; |
2372 | if (coro_first) coro_first->prev = coro; |
1546 | coro->next = coro_first; |
2373 | coro->next = coro_first; |
1547 | coro_first = coro; |
2374 | coro_first = coro; |
1548 | |
2375 | |
1549 | coro->hv = hv = newHV (); |
2376 | coro->hv = hv = newHV (); |
1550 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
2377 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
2378 | mg->mg_flags |= MGf_DUP; |
1551 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2379 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1552 | |
2380 | |
1553 | av_extend (coro->args, items - 1); |
2381 | av_extend (coro->args, items - 1); |
1554 | for (i = 1; i < items; i++) |
2382 | for (i = 1; i < items; i++) |
1555 | av_push (coro->args, newSVsv (ST (i))); |
2383 | av_push (coro->args, newSVsv (ST (i))); |
1556 | } |
2384 | } |
1557 | OUTPUT: |
2385 | OUTPUT: |
1558 | RETVAL |
2386 | RETVAL |
1559 | |
2387 | |
1560 | # these not obviously related functions are all rolled into the same xs |
|
|
1561 | # function to increase chances that they all will call transfer with the same |
|
|
1562 | # stack offset |
|
|
1563 | void |
2388 | void |
1564 | _set_stacklevel (...) |
2389 | transfer (...) |
1565 | ALIAS: |
2390 | PROTOTYPE: $$ |
1566 | Coro::State::transfer = 1 |
2391 | CODE: |
1567 | Coro::schedule = 2 |
2392 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1568 | Coro::cede = 3 |
|
|
1569 | Coro::cede_notself = 4 |
|
|
1570 | Coro::Event::next = 5 |
|
|
1571 | Coro::Event::next_cancel = 6 |
|
|
1572 | PPCODE: |
|
|
1573 | { |
|
|
1574 | struct transfer_args ta; |
|
|
1575 | int again = 0; |
|
|
1576 | |
|
|
1577 | do |
|
|
1578 | { |
|
|
1579 | switch (ix) |
|
|
1580 | { |
|
|
1581 | case 0: |
|
|
1582 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1583 | ta.next = 0; |
|
|
1584 | break; |
|
|
1585 | |
|
|
1586 | case 1: |
|
|
1587 | if (items != 2) |
|
|
1588 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1589 | |
|
|
1590 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1591 | break; |
|
|
1592 | |
|
|
1593 | case 2: |
|
|
1594 | prepare_schedule (aTHX_ &ta); |
|
|
1595 | break; |
|
|
1596 | |
|
|
1597 | case 3: |
|
|
1598 | prepare_cede (aTHX_ &ta); |
|
|
1599 | break; |
|
|
1600 | |
|
|
1601 | case 4: |
|
|
1602 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1603 | XSRETURN_EMPTY; |
|
|
1604 | |
|
|
1605 | break; |
|
|
1606 | |
|
|
1607 | case 5: |
|
|
1608 | case 6: |
|
|
1609 | if (items != 1) |
|
|
1610 | croak ("Coro::Event::next (watcher) expects one argument, not %d", items); |
|
|
1611 | |
|
|
1612 | { |
|
|
1613 | SV *ev = coroapi.coro_event_next (ST (0), ix == 6, GIMME_V != G_VOID); |
|
|
1614 | |
|
|
1615 | if (ev) |
|
|
1616 | { |
|
|
1617 | if (GIMME_V != G_VOID) |
|
|
1618 | { |
|
|
1619 | XPUSHs (ev); |
|
|
1620 | XSRETURN (1); |
|
|
1621 | } |
|
|
1622 | else |
|
|
1623 | XSRETURN_EMPTY; |
|
|
1624 | } |
|
|
1625 | } |
|
|
1626 | |
|
|
1627 | prepare_schedule (aTHX_ &ta); |
|
|
1628 | again = 1; |
|
|
1629 | break; |
|
|
1630 | } |
|
|
1631 | |
|
|
1632 | BARRIER; |
|
|
1633 | TRANSFER (ta); |
|
|
1634 | BARRIER; |
|
|
1635 | } |
|
|
1636 | while (again); |
|
|
1637 | |
|
|
1638 | if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev)) |
|
|
1639 | XSRETURN_YES; |
|
|
1640 | |
|
|
1641 | XSRETURN_EMPTY; /* not understood why this is necessary, likely some stack handling bug */ |
|
|
1642 | |
2393 | |
1643 | bool |
2394 | bool |
1644 | _destroy (SV *coro_sv) |
2395 | _destroy (SV *coro_sv) |
1645 | CODE: |
2396 | CODE: |
1646 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2397 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1647 | OUTPUT: |
2398 | OUTPUT: |
1648 | RETVAL |
2399 | RETVAL |
1649 | |
2400 | |
1650 | void |
2401 | void |
1651 | _exit (code) |
2402 | _exit (int code) |
1652 | int code |
|
|
1653 | PROTOTYPE: $ |
2403 | PROTOTYPE: $ |
1654 | CODE: |
2404 | CODE: |
1655 | _exit (code); |
2405 | _exit (code); |
1656 | |
2406 | |
1657 | int |
2407 | int |
1658 | cctx_stacksize (int new_stacksize = 0) |
2408 | cctx_stacksize (int new_stacksize = 0) |
|
|
2409 | PROTOTYPE: ;$ |
1659 | CODE: |
2410 | CODE: |
1660 | RETVAL = coro_stacksize; |
2411 | RETVAL = cctx_stacksize; |
1661 | if (new_stacksize) |
2412 | if (new_stacksize) |
|
|
2413 | { |
1662 | coro_stacksize = new_stacksize; |
2414 | cctx_stacksize = new_stacksize; |
|
|
2415 | ++cctx_gen; |
|
|
2416 | } |
1663 | OUTPUT: |
2417 | OUTPUT: |
1664 | RETVAL |
2418 | RETVAL |
1665 | |
2419 | |
1666 | int |
2420 | int |
|
|
2421 | cctx_max_idle (int max_idle = 0) |
|
|
2422 | PROTOTYPE: ;$ |
|
|
2423 | CODE: |
|
|
2424 | RETVAL = cctx_max_idle; |
|
|
2425 | if (max_idle > 1) |
|
|
2426 | cctx_max_idle = max_idle; |
|
|
2427 | OUTPUT: |
|
|
2428 | RETVAL |
|
|
2429 | |
|
|
2430 | int |
1667 | cctx_count () |
2431 | cctx_count () |
|
|
2432 | PROTOTYPE: |
1668 | CODE: |
2433 | CODE: |
1669 | RETVAL = cctx_count; |
2434 | RETVAL = cctx_count; |
1670 | OUTPUT: |
2435 | OUTPUT: |
1671 | RETVAL |
2436 | RETVAL |
1672 | |
2437 | |
1673 | int |
2438 | int |
1674 | cctx_idle () |
2439 | cctx_idle () |
|
|
2440 | PROTOTYPE: |
1675 | CODE: |
2441 | CODE: |
1676 | RETVAL = cctx_idle; |
2442 | RETVAL = cctx_idle; |
1677 | OUTPUT: |
2443 | OUTPUT: |
1678 | RETVAL |
2444 | RETVAL |
1679 | |
2445 | |
1680 | void |
2446 | void |
1681 | list () |
2447 | list () |
|
|
2448 | PROTOTYPE: |
1682 | PPCODE: |
2449 | PPCODE: |
1683 | { |
2450 | { |
1684 | struct coro *coro; |
2451 | struct coro *coro; |
1685 | for (coro = coro_first; coro; coro = coro->next) |
2452 | for (coro = coro_first; coro; coro = coro->next) |
1686 | if (coro->hv) |
2453 | if (coro->hv) |
… | |
… | |
1691 | call (Coro::State coro, SV *coderef) |
2458 | call (Coro::State coro, SV *coderef) |
1692 | ALIAS: |
2459 | ALIAS: |
1693 | eval = 1 |
2460 | eval = 1 |
1694 | CODE: |
2461 | CODE: |
1695 | { |
2462 | { |
1696 | if (coro->mainstack) |
2463 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1697 | { |
2464 | { |
1698 | struct coro temp; |
2465 | struct coro temp; |
1699 | |
2466 | |
1700 | if (!(coro->flags & CF_RUNNING)) |
2467 | if (!(coro->flags & CF_RUNNING)) |
1701 | { |
2468 | { |
|
|
2469 | PUTBACK; |
1702 | save_perl (aTHX_ &temp); |
2470 | save_perl (aTHX_ &temp); |
1703 | load_perl (aTHX_ coro); |
2471 | load_perl (aTHX_ coro); |
1704 | } |
2472 | } |
1705 | |
2473 | |
1706 | { |
2474 | { |
… | |
… | |
1715 | eval_sv (coderef, 0); |
2483 | eval_sv (coderef, 0); |
1716 | else |
2484 | else |
1717 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2485 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1718 | |
2486 | |
1719 | POPSTACK; |
2487 | POPSTACK; |
|
|
2488 | SPAGAIN; |
1720 | FREETMPS; |
2489 | FREETMPS; |
1721 | LEAVE; |
2490 | LEAVE; |
|
|
2491 | PUTBACK; |
1722 | } |
2492 | } |
1723 | |
2493 | |
1724 | if (!(coro->flags & CF_RUNNING)) |
2494 | if (!(coro->flags & CF_RUNNING)) |
1725 | { |
2495 | { |
1726 | save_perl (aTHX_ coro); |
2496 | save_perl (aTHX_ coro); |
1727 | load_perl (aTHX_ &temp); |
2497 | load_perl (aTHX_ &temp); |
|
|
2498 | SPAGAIN; |
1728 | } |
2499 | } |
1729 | } |
2500 | } |
1730 | } |
2501 | } |
1731 | |
2502 | |
1732 | SV * |
2503 | SV * |
… | |
… | |
1741 | RETVAL = boolSV (coro->flags & ix); |
2512 | RETVAL = boolSV (coro->flags & ix); |
1742 | OUTPUT: |
2513 | OUTPUT: |
1743 | RETVAL |
2514 | RETVAL |
1744 | |
2515 | |
1745 | void |
2516 | void |
|
|
2517 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2518 | PROTOTYPE: $;$ |
|
|
2519 | CODE: |
|
|
2520 | { |
|
|
2521 | struct coro *current = SvSTATE_current; |
|
|
2522 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
|
|
2523 | SvREFCNT_dec (*throwp); |
|
|
2524 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2525 | } |
|
|
2526 | |
|
|
2527 | void |
1746 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2528 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2529 | PROTOTYPE: $;$ |
|
|
2530 | C_ARGS: aTHX_ coro, flags |
1747 | |
2531 | |
1748 | SV * |
2532 | SV * |
1749 | has_stack (Coro::State coro) |
2533 | has_cctx (Coro::State coro) |
1750 | PROTOTYPE: $ |
2534 | PROTOTYPE: $ |
1751 | CODE: |
2535 | CODE: |
1752 | RETVAL = boolSV (!!coro->cctx); |
2536 | RETVAL = boolSV (!!coro->cctx); |
1753 | OUTPUT: |
2537 | OUTPUT: |
1754 | RETVAL |
2538 | RETVAL |
… | |
… | |
1759 | CODE: |
2543 | CODE: |
1760 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
2544 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1761 | OUTPUT: |
2545 | OUTPUT: |
1762 | RETVAL |
2546 | RETVAL |
1763 | |
2547 | |
1764 | IV |
2548 | UV |
1765 | rss (Coro::State coro) |
2549 | rss (Coro::State coro) |
1766 | PROTOTYPE: $ |
2550 | PROTOTYPE: $ |
1767 | ALIAS: |
2551 | ALIAS: |
1768 | usecount = 1 |
2552 | usecount = 1 |
1769 | CODE: |
2553 | CODE: |
… | |
… | |
1773 | case 1: RETVAL = coro->usecount; break; |
2557 | case 1: RETVAL = coro->usecount; break; |
1774 | } |
2558 | } |
1775 | OUTPUT: |
2559 | OUTPUT: |
1776 | RETVAL |
2560 | RETVAL |
1777 | |
2561 | |
|
|
2562 | void |
|
|
2563 | force_cctx () |
|
|
2564 | PROTOTYPE: |
|
|
2565 | CODE: |
|
|
2566 | SvSTATE_current->cctx->idle_sp = 0; |
|
|
2567 | |
|
|
2568 | void |
|
|
2569 | swap_defsv (Coro::State self) |
|
|
2570 | PROTOTYPE: $ |
|
|
2571 | ALIAS: |
|
|
2572 | swap_defav = 1 |
|
|
2573 | CODE: |
|
|
2574 | if (!self->slot) |
|
|
2575 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
2576 | else |
|
|
2577 | { |
|
|
2578 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
2579 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
2580 | |
|
|
2581 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
2582 | } |
|
|
2583 | |
1778 | |
2584 | |
1779 | MODULE = Coro::State PACKAGE = Coro |
2585 | MODULE = Coro::State PACKAGE = Coro |
1780 | |
2586 | |
1781 | BOOT: |
2587 | BOOT: |
1782 | { |
2588 | { |
1783 | int i; |
2589 | int i; |
1784 | |
2590 | |
1785 | sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1786 | sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1787 | av_async_pool = coro_get_av ("Coro::async_pool", TRUE); |
2591 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2592 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
2593 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
1788 | |
2594 | |
1789 | coro_current = coro_get_sv ("Coro::current", FALSE); |
2595 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
1790 | SvREADONLY_on (coro_current); |
2596 | SvREADONLY_on (coro_current); |
1791 | |
2597 | |
1792 | coro_stash = gv_stashpv ("Coro", TRUE); |
2598 | coro_stash = gv_stashpv ("Coro", TRUE); |
1793 | |
2599 | |
1794 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2600 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
… | |
… | |
1800 | |
2606 | |
1801 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2607 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1802 | coro_ready[i] = newAV (); |
2608 | coro_ready[i] = newAV (); |
1803 | |
2609 | |
1804 | { |
2610 | { |
1805 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
2611 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1806 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
1807 | |
2612 | |
1808 | coroapi.schedule = api_schedule; |
2613 | coroapi.schedule = api_schedule; |
1809 | coroapi.cede = api_cede; |
2614 | coroapi.cede = api_cede; |
1810 | coroapi.cede_notself = api_cede_notself; |
2615 | coroapi.cede_notself = api_cede_notself; |
1811 | coroapi.ready = api_ready; |
2616 | coroapi.ready = api_ready; |
1812 | coroapi.is_ready = api_is_ready; |
2617 | coroapi.is_ready = api_is_ready; |
1813 | coroapi.nready = &coro_nready; |
2618 | coroapi.nready = coro_nready; |
1814 | coroapi.current = coro_current; |
2619 | coroapi.current = coro_current; |
1815 | |
2620 | |
1816 | GCoroAPI = &coroapi; |
2621 | /*GCoroAPI = &coroapi;*/ |
1817 | sv_setiv (sv, (IV)&coroapi); |
2622 | sv_setiv (sv, (IV)&coroapi); |
1818 | SvREADONLY_on (sv); |
2623 | SvREADONLY_on (sv); |
1819 | } |
2624 | } |
1820 | } |
2625 | } |
|
|
2626 | |
|
|
2627 | void |
|
|
2628 | schedule (...) |
|
|
2629 | CODE: |
|
|
2630 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
2631 | |
|
|
2632 | void |
|
|
2633 | cede (...) |
|
|
2634 | CODE: |
|
|
2635 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
2636 | |
|
|
2637 | void |
|
|
2638 | cede_notself (...) |
|
|
2639 | CODE: |
|
|
2640 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1821 | |
2641 | |
1822 | void |
2642 | void |
1823 | _set_current (SV *current) |
2643 | _set_current (SV *current) |
1824 | PROTOTYPE: $ |
2644 | PROTOTYPE: $ |
1825 | CODE: |
2645 | CODE: |
1826 | SvREFCNT_dec (SvRV (coro_current)); |
2646 | SvREFCNT_dec (SvRV (coro_current)); |
1827 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
2647 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
2648 | |
|
|
2649 | void |
|
|
2650 | _set_readyhook (SV *hook) |
|
|
2651 | PROTOTYPE: $ |
|
|
2652 | CODE: |
|
|
2653 | SvREFCNT_dec (coro_readyhook); |
|
|
2654 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
1828 | |
2655 | |
1829 | int |
2656 | int |
1830 | prio (Coro::State coro, int newprio = 0) |
2657 | prio (Coro::State coro, int newprio = 0) |
|
|
2658 | PROTOTYPE: $;$ |
1831 | ALIAS: |
2659 | ALIAS: |
1832 | nice = 1 |
2660 | nice = 1 |
1833 | CODE: |
2661 | CODE: |
1834 | { |
2662 | { |
1835 | RETVAL = coro->prio; |
2663 | RETVAL = coro->prio; |
… | |
… | |
1850 | |
2678 | |
1851 | SV * |
2679 | SV * |
1852 | ready (SV *self) |
2680 | ready (SV *self) |
1853 | PROTOTYPE: $ |
2681 | PROTOTYPE: $ |
1854 | CODE: |
2682 | CODE: |
1855 | RETVAL = boolSV (api_ready (self)); |
2683 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1856 | OUTPUT: |
2684 | OUTPUT: |
1857 | RETVAL |
2685 | RETVAL |
1858 | |
2686 | |
1859 | int |
2687 | int |
1860 | nready (...) |
2688 | nready (...) |
… | |
… | |
1862 | CODE: |
2690 | CODE: |
1863 | RETVAL = coro_nready; |
2691 | RETVAL = coro_nready; |
1864 | OUTPUT: |
2692 | OUTPUT: |
1865 | RETVAL |
2693 | RETVAL |
1866 | |
2694 | |
1867 | void |
|
|
1868 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
1869 | PROTOTYPE: $;$ |
|
|
1870 | CODE: |
|
|
1871 | SvREFCNT_dec (self->throw); |
|
|
1872 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1873 | |
|
|
1874 | # for async_pool speedup |
2695 | # for async_pool speedup |
1875 | void |
2696 | void |
1876 | _pool_1 (SV *cb) |
2697 | _pool_1 (SV *cb) |
1877 | CODE: |
2698 | CODE: |
1878 | { |
2699 | { |
1879 | struct coro *coro = SvSTATE (coro_current); |
|
|
1880 | HV *hv = (HV *)SvRV (coro_current); |
2700 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2701 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
1881 | AV *defav = GvAV (PL_defgv); |
2702 | AV *defav = GvAV (PL_defgv); |
1882 | SV *invoke = hv_delete (hv, strpair ("_invoke"), 0); |
2703 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
1883 | AV *invoke_av; |
2704 | AV *invoke_av; |
1884 | int i, len; |
2705 | int i, len; |
1885 | |
2706 | |
1886 | if (!invoke) |
2707 | if (!invoke) |
|
|
2708 | { |
|
|
2709 | SV *old = PL_diehook; |
|
|
2710 | PL_diehook = 0; |
|
|
2711 | SvREFCNT_dec (old); |
1887 | croak ("\3async_pool terminate\2\n"); |
2712 | croak ("\3async_pool terminate\2\n"); |
|
|
2713 | } |
1888 | |
2714 | |
1889 | SvREFCNT_dec (coro->saved_deffh); |
2715 | SvREFCNT_dec (coro->saved_deffh); |
1890 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
2716 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
1891 | |
2717 | |
1892 | hv_store (hv, "desc", sizeof ("desc") - 1, |
2718 | hv_store (hv, "desc", sizeof ("desc") - 1, |
1893 | newSVpvn (strpair ("[async_pool]")), 0); |
2719 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
1894 | |
2720 | |
1895 | invoke_av = (AV *)SvRV (invoke); |
2721 | invoke_av = (AV *)SvRV (invoke); |
1896 | len = av_len (invoke_av); |
2722 | len = av_len (invoke_av); |
1897 | |
2723 | |
1898 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
2724 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
1899 | |
2725 | |
1900 | if (len > 0) |
2726 | if (len > 0) |
1901 | { |
2727 | { |
1902 | av_fill (defav, len - 1); |
2728 | av_fill (defav, len - 1); |
1903 | for (i = 0; i < len; ++i) |
2729 | for (i = 0; i < len; ++i) |
1904 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
2730 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
1905 | } |
2731 | } |
1906 | |
|
|
1907 | SvREFCNT_dec (invoke); |
|
|
1908 | } |
2732 | } |
1909 | |
2733 | |
1910 | void |
2734 | void |
1911 | _pool_2 (SV *cb) |
2735 | _pool_2 (SV *cb) |
1912 | CODE: |
2736 | CODE: |
1913 | { |
2737 | { |
1914 | struct coro *coro = SvSTATE (coro_current); |
2738 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2739 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
1915 | |
2740 | |
1916 | sv_setsv (cb, &PL_sv_undef); |
2741 | sv_setsv (cb, &PL_sv_undef); |
1917 | |
2742 | |
1918 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2743 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
1919 | coro->saved_deffh = 0; |
2744 | coro->saved_deffh = 0; |
1920 | |
2745 | |
1921 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
2746 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
1922 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
2747 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2748 | { |
|
|
2749 | SV *old = PL_diehook; |
|
|
2750 | PL_diehook = 0; |
|
|
2751 | SvREFCNT_dec (old); |
1923 | croak ("\3async_pool terminate\2\n"); |
2752 | croak ("\3async_pool terminate\2\n"); |
|
|
2753 | } |
1924 | |
2754 | |
1925 | av_clear (GvAV (PL_defgv)); |
2755 | av_clear (GvAV (PL_defgv)); |
1926 | hv_store ((HV *)SvRV (coro_current), strpair ("desc"), |
2756 | hv_store (hv, "desc", sizeof ("desc") - 1, |
1927 | newSVpvn (strpair ("[async_pool idle]")), 0); |
2757 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
1928 | |
2758 | |
1929 | coro->prio = 0; |
2759 | coro->prio = 0; |
1930 | |
2760 | |
1931 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2761 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
1932 | api_trace (coro_current, 0); |
2762 | api_trace (aTHX_ coro_current, 0); |
1933 | |
2763 | |
1934 | av_push (av_async_pool, newSVsv (coro_current)); |
2764 | av_push (av_async_pool, newSVsv (coro_current)); |
1935 | } |
2765 | } |
1936 | |
2766 | |
1937 | |
2767 | |
|
|
2768 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
2769 | |
|
|
2770 | BOOT: |
|
|
2771 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
2772 | |
|
|
2773 | |
1938 | MODULE = Coro::State PACKAGE = Coro::AIO |
2774 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
1939 | |
2775 | |
1940 | SV * |
2776 | SV * |
1941 | _get_state () |
2777 | new (SV *klass, SV *count_ = 0) |
1942 | CODE: |
2778 | CODE: |
1943 | { |
2779 | { |
1944 | struct io_state *data; |
2780 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2781 | AV *av = newAV (); |
|
|
2782 | SV **ary; |
1945 | |
2783 | |
1946 | RETVAL = newSV (sizeof (struct io_state)); |
2784 | /* unfortunately, building manually saves memory */ |
1947 | data = (struct io_state *)SvPVX (RETVAL); |
2785 | Newx (ary, 2, SV *); |
1948 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
2786 | AvALLOC (av) = ary; |
1949 | SvPOK_only (RETVAL); |
2787 | AvARRAY (av) = ary; |
|
|
2788 | AvMAX (av) = 1; |
|
|
2789 | AvFILLp (av) = 0; |
|
|
2790 | ary [0] = newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1); |
1950 | |
2791 | |
1951 | data->errorno = errno; |
2792 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
1952 | data->laststype = PL_laststype; |
|
|
1953 | data->laststatval = PL_laststatval; |
|
|
1954 | data->statcache = PL_statcache; |
|
|
1955 | } |
2793 | } |
1956 | OUTPUT: |
2794 | OUTPUT: |
1957 | RETVAL |
2795 | RETVAL |
1958 | |
2796 | |
|
|
2797 | SV * |
|
|
2798 | count (SV *self) |
|
|
2799 | CODE: |
|
|
2800 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
2801 | OUTPUT: |
|
|
2802 | RETVAL |
|
|
2803 | |
1959 | void |
2804 | void |
1960 | _set_state (char *data_) |
2805 | up (SV *self, int adjust = 1) |
1961 | PROTOTYPE: $ |
2806 | ALIAS: |
|
|
2807 | adjust = 1 |
|
|
2808 | CODE: |
|
|
2809 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
2810 | |
|
|
2811 | void |
|
|
2812 | down (SV *self) |
|
|
2813 | CODE: |
|
|
2814 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
2815 | |
|
|
2816 | void |
|
|
2817 | try (SV *self) |
|
|
2818 | PPCODE: |
|
|
2819 | { |
|
|
2820 | AV *av = (AV *)SvRV (self); |
|
|
2821 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2822 | IV count = SvIVX (count_sv); |
|
|
2823 | |
|
|
2824 | if (count > 0) |
|
|
2825 | { |
|
|
2826 | --count; |
|
|
2827 | SvIVX (count_sv) = count; |
|
|
2828 | XSRETURN_YES; |
|
|
2829 | } |
|
|
2830 | else |
|
|
2831 | XSRETURN_NO; |
|
|
2832 | } |
|
|
2833 | |
|
|
2834 | void |
|
|
2835 | waiters (SV *self) |
|
|
2836 | CODE: |
|
|
2837 | { |
|
|
2838 | AV *av = (AV *)SvRV (self); |
|
|
2839 | |
|
|
2840 | if (GIMME_V == G_SCALAR) |
|
|
2841 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
|
|
2842 | else |
|
|
2843 | { |
|
|
2844 | int i; |
|
|
2845 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
|
|
2846 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2847 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
2848 | } |
|
|
2849 | } |
|
|
2850 | |
|
|
2851 | |
|
|
2852 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2853 | |
|
|
2854 | BOOT: |
|
|
2855 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2856 | |
|
|
2857 | void |
|
|
2858 | _schedule (...) |
1962 | CODE: |
2859 | CODE: |
1963 | { |
2860 | { |
1964 | struct io_state *data = (void *)data_; |
2861 | static int incede; |
1965 | |
2862 | |
1966 | errno = data->errorno; |
2863 | api_cede_notself (aTHX); |
1967 | PL_laststype = data->laststype; |
|
|
1968 | PL_laststatval = data->laststatval; |
|
|
1969 | PL_statcache = data->statcache; |
|
|
1970 | } |
|
|
1971 | |
2864 | |
|
|
2865 | ++incede; |
|
|
2866 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2867 | ; |
|
|
2868 | |
|
|
2869 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2870 | if (coro_nready >= incede) |
|
|
2871 | { |
|
|
2872 | PUSHMARK (SP); |
|
|
2873 | PUTBACK; |
|
|
2874 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
2875 | } |
|
|
2876 | |
|
|
2877 | --incede; |
|
|
2878 | } |
|
|
2879 | |
|
|
2880 | |
|
|
2881 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2882 | |
|
|
2883 | void |
|
|
2884 | _register (char *target, char *proto, SV *req) |
|
|
2885 | CODE: |
|
|
2886 | { |
|
|
2887 | HV *st; |
|
|
2888 | GV *gvp; |
|
|
2889 | CV *req_cv = sv_2cv (req, &st, &gvp, 0); |
|
|
2890 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
2891 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
2892 | sv_setpv ((SV *)slf_cv, proto); |
|
|
2893 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
2894 | } |
|
|
2895 | |