… | |
… | |
4 | #define PERL_EXT |
4 | #define PERL_EXT |
5 | |
5 | |
6 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
7 | #include "perl.h" |
7 | #include "perl.h" |
8 | #include "XSUB.h" |
8 | #include "XSUB.h" |
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9 | #include "perliol.h" |
9 | |
10 | |
10 | #include "patchlevel.h" |
11 | #include "patchlevel.h" |
11 | |
12 | |
12 | #include <stdio.h> |
13 | #include <stdio.h> |
13 | #include <errno.h> |
14 | #include <errno.h> |
14 | #include <assert.h> |
15 | #include <assert.h> |
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16 | |
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17 | #ifdef WIN32 |
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18 | # undef setjmp |
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19 | # undef longjmp |
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20 | # undef _exit |
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21 | # define setjmp _setjmp /* deep magic */ |
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22 | #else |
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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) \ |
53 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
60 | || (PERL_VERSION == (b) && PERL_SUBVERSION >= (c))))) |
54 | |
61 | |
55 | #if !PERL_VERSION_ATLEAST (5,6,0) |
62 | #if !PERL_VERSION_ATLEAST (5,6,0) |
56 | # ifndef PL_ppaddr |
63 | # ifndef PL_ppaddr |
57 | # define PL_ppaddr ppaddr |
64 | # define PL_ppaddr ppaddr |
58 | # endif |
65 | # endif |
… | |
… | |
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 | #ifndef CvISXSUB |
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104 | # define CvISXSUB(cv) (CvXSUB (cv) ? TRUE : FALSE) |
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105 | #endif |
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106 | #ifndef Newx |
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107 | # define Newx(ptr,nitems,type) New (0,ptr,nitems,type) |
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108 | #endif |
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109 | |
76 | /* 5.8.7 */ |
110 | /* 5.8.7 */ |
77 | #ifndef SvRV_set |
111 | #ifndef SvRV_set |
78 | # define SvRV_set(s,v) SvRV(s) = (v) |
112 | # define SvRV_set(s,v) SvRV(s) = (v) |
79 | #endif |
113 | #endif |
80 | |
114 | |
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 |
115 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
90 | # undef CORO_STACKGUARD |
116 | # undef CORO_STACKGUARD |
91 | #endif |
117 | #endif |
92 | |
118 | |
93 | #ifndef CORO_STACKGUARD |
119 | #ifndef CORO_STACKGUARD |
… | |
… | |
99 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
125 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
100 | #endif |
126 | #endif |
101 | |
127 | |
102 | /* The next macros try to return the current stack pointer, in an as |
128 | /* The next macros try to return the current stack pointer, in an as |
103 | * portable way as possible. */ |
129 | * portable way as possible. */ |
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130 | #if __GNUC__ >= 4 |
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131 | # define dSTACKLEVEL int stacklevel_dummy |
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132 | # define STACKLEVEL __builtin_frame_address (0) |
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133 | #else |
104 | #define dSTACKLEVEL volatile char stacklevel |
134 | # define dSTACKLEVEL volatile void *stacklevel |
105 | #define STACKLEVEL ((void *)&stacklevel) |
135 | # define STACKLEVEL ((void *)&stacklevel) |
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136 | #endif |
106 | |
137 | |
107 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
138 | #define IN_DESTRUCT PL_dirty |
108 | |
139 | |
109 | #if __GNUC__ >= 3 |
140 | #if __GNUC__ >= 3 |
110 | # define attribute(x) __attribute__(x) |
141 | # define attribute(x) __attribute__(x) |
111 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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112 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
142 | # define expect(expr,value) __builtin_expect ((expr), (value)) |
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143 | # define INLINE static inline |
113 | #else |
144 | #else |
114 | # define attribute(x) |
145 | # define attribute(x) |
115 | # define BARRIER |
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116 | # define expect(expr,value) (expr) |
146 | # define expect(expr,value) (expr) |
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147 | # define INLINE static |
117 | #endif |
148 | #endif |
118 | |
149 | |
119 | #define expect_false(expr) expect ((expr) != 0, 0) |
150 | #define expect_false(expr) expect ((expr) != 0, 0) |
120 | #define expect_true(expr) expect ((expr) != 0, 1) |
151 | #define expect_true(expr) expect ((expr) != 0, 1) |
121 | |
152 | |
122 | #define NOINLINE attribute ((noinline)) |
153 | #define NOINLINE attribute ((noinline)) |
123 | |
154 | |
124 | #include "CoroAPI.h" |
155 | #include "CoroAPI.h" |
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156 | #define GCoroAPI (&coroapi) /* very sneaky */ |
125 | |
157 | |
126 | #ifdef USE_ITHREADS |
158 | #ifdef USE_ITHREADS |
127 | static perl_mutex coro_mutex; |
159 | # if CORO_PTHREAD |
128 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
160 | 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 |
161 | # endif |
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162 | #endif |
134 | |
163 | |
135 | /* helper storage struct for Coro::AIO */ |
164 | #ifdef __linux |
136 | struct io_state |
165 | # include <time.h> /* for timespec */ |
137 | { |
166 | # include <syscall.h> /* for SYS_* */ |
138 | int errorno; |
167 | # ifdef SYS_clock_gettime |
139 | I32 laststype; |
168 | # define coro_clock_gettime(id, ts) syscall (SYS_clock_gettime, (id), (ts)) |
140 | int laststatval; |
169 | # define CORO_CLOCK_MONOTONIC 1 |
141 | Stat_t statcache; |
170 | # define CORO_CLOCK_THREAD_CPUTIME_ID 3 |
142 | }; |
171 | # endif |
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172 | #endif |
143 | |
173 | |
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174 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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175 | |
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176 | /* we hijack an hopefully unused CV flag for our purposes */ |
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177 | #define CVf_SLF 0x4000 |
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178 | static OP *pp_slf (pTHX); |
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179 | |
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180 | static U32 cctx_gen; |
144 | static size_t coro_stacksize = CORO_STACKSIZE; |
181 | static size_t cctx_stacksize = CORO_STACKSIZE; |
145 | static struct CoroAPI coroapi; |
182 | static struct CoroAPI coroapi; |
146 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
183 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
147 | static JMPENV *main_top_env; |
184 | static JMPENV *main_top_env; |
148 | static HV *coro_state_stash, *coro_stash; |
185 | static HV *coro_state_stash, *coro_stash; |
149 | static SV *coro_mortal; /* will be freed after next transfer */ |
186 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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187 | |
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188 | static AV *av_destroy; /* destruction queue */ |
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189 | static SV *sv_manager; /* the manager coro */ |
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190 | static SV *sv_idle; /* $Coro::idle */ |
150 | |
191 | |
151 | static GV *irsgv; /* $/ */ |
192 | static GV *irsgv; /* $/ */ |
152 | static GV *stdoutgv; /* *STDOUT */ |
193 | static GV *stdoutgv; /* *STDOUT */ |
153 | static SV *sv_diehook; |
194 | static SV *rv_diehook; |
154 | static SV *sv_warnhook; |
195 | static SV *rv_warnhook; |
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196 | static HV *hv_sig; /* %SIG */ |
155 | |
197 | |
156 | /* async_pool helper stuff */ |
198 | /* async_pool helper stuff */ |
157 | static SV *sv_pool_rss; |
199 | static SV *sv_pool_rss; |
158 | static SV *sv_pool_size; |
200 | static SV *sv_pool_size; |
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201 | static SV *sv_async_pool_idle; /* description string */ |
159 | static AV *av_async_pool; |
202 | static AV *av_async_pool; /* idle pool */ |
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203 | static SV *sv_Coro; /* class string */ |
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204 | static CV *cv_pool_handler; |
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205 | static CV *cv_coro_state_new; |
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206 | |
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207 | /* Coro::AnyEvent */ |
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208 | static SV *sv_activity; |
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209 | |
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210 | /* enable processtime/realtime profiling */ |
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211 | static char profile_times; |
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212 | typedef U32 coro_ts[2]; |
160 | |
213 | |
161 | static struct coro_cctx *cctx_first; |
214 | static struct coro_cctx *cctx_first; |
162 | static int cctx_count, cctx_idle; |
215 | static int cctx_count, cctx_idle; |
163 | |
216 | |
164 | enum { |
217 | enum { |
… | |
… | |
169 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
222 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
170 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
223 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
171 | }; |
224 | }; |
172 | |
225 | |
173 | /* this is a structure representing a c-level coroutine */ |
226 | /* this is a structure representing a c-level coroutine */ |
174 | typedef struct coro_cctx { |
227 | typedef struct coro_cctx |
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228 | { |
175 | struct coro_cctx *next; |
229 | struct coro_cctx *next; |
176 | |
230 | |
177 | /* the stack */ |
231 | /* the stack */ |
178 | void *sptr; |
232 | void *sptr; |
179 | size_t ssize; |
233 | size_t ssize; |
… | |
… | |
182 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
236 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
183 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
237 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
184 | JMPENV *top_env; |
238 | JMPENV *top_env; |
185 | coro_context cctx; |
239 | coro_context cctx; |
186 | |
240 | |
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241 | U32 gen; |
187 | #if CORO_USE_VALGRIND |
242 | #if CORO_USE_VALGRIND |
188 | int valgrind_id; |
243 | int valgrind_id; |
189 | #endif |
244 | #endif |
190 | unsigned char flags; |
245 | unsigned char flags; |
191 | } coro_cctx; |
246 | } coro_cctx; |
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247 | |
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248 | coro_cctx *cctx_current; /* the currently running cctx */ |
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249 | |
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250 | /*****************************************************************************/ |
192 | |
251 | |
193 | enum { |
252 | enum { |
194 | CF_RUNNING = 0x0001, /* coroutine is running */ |
253 | CF_RUNNING = 0x0001, /* coroutine is running */ |
195 | CF_READY = 0x0002, /* coroutine is ready */ |
254 | CF_READY = 0x0002, /* coroutine is ready */ |
196 | CF_NEW = 0x0004, /* has never been switched to */ |
255 | CF_NEW = 0x0004, /* has never been switched to */ |
197 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
256 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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257 | CF_SUSPENDED = 0x0010, /* coroutine can't be scheduled */ |
198 | }; |
258 | }; |
199 | |
259 | |
200 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
260 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
201 | typedef struct { |
261 | typedef struct |
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262 | { |
202 | SV *defsv; |
263 | SV *defsv; |
203 | AV *defav; |
264 | AV *defav; |
204 | SV *errsv; |
265 | SV *errsv; |
205 | SV *irsgv; |
266 | SV *irsgv; |
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267 | HV *hinthv; |
206 | #define VAR(name,type) type name; |
268 | #define VAR(name,type) type name; |
207 | # include "state.h" |
269 | # include "state.h" |
208 | #undef VAR |
270 | #undef VAR |
209 | } perl_slots; |
271 | } perl_slots; |
210 | |
272 | |
211 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
273 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
212 | |
274 | |
213 | /* this is a structure representing a perl-level coroutine */ |
275 | /* this is a structure representing a perl-level coroutine */ |
214 | struct coro { |
276 | struct coro { |
215 | /* the c coroutine allocated to this perl coroutine, if any */ |
277 | /* the C coroutine allocated to this perl coroutine, if any */ |
216 | coro_cctx *cctx; |
278 | coro_cctx *cctx; |
217 | |
279 | |
218 | /* process data */ |
280 | /* ready queue */ |
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281 | struct coro *next_ready; |
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282 | |
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283 | /* state data */ |
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284 | struct CoroSLF slf_frame; /* saved slf frame */ |
219 | AV *mainstack; |
285 | AV *mainstack; |
220 | perl_slots *slot; /* basically the saved sp */ |
286 | perl_slots *slot; /* basically the saved sp */ |
221 | |
287 | |
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288 | CV *startcv; /* the CV to execute */ |
222 | /* data associated with this coroutine (initial args) */ |
289 | AV *args; /* data associated with this coroutine (initial args) */ |
223 | AV *args; |
290 | int refcnt; /* coroutines are refcounted, yes */ |
224 | int refcnt; |
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225 | int flags; /* CF_ flags */ |
291 | int flags; /* CF_ flags */ |
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292 | HV *hv; /* the perl hash associated with this coro, if any */ |
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293 | void (*on_destroy)(pTHX_ struct coro *coro); |
226 | |
294 | |
227 | /* statistics */ |
295 | /* statistics */ |
228 | int usecount; /* number of transfers to this coro */ |
296 | int usecount; /* number of transfers to this coro */ |
229 | |
297 | |
230 | /* coro process data */ |
298 | /* coro process data */ |
231 | int prio; |
299 | int prio; |
232 | SV *throw; |
300 | SV *except; /* exception to be thrown */ |
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301 | SV *rouse_cb; |
233 | |
302 | |
234 | /* async_pool */ |
303 | /* async_pool */ |
235 | SV *saved_deffh; |
304 | SV *saved_deffh; |
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305 | SV *invoke_cb; |
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306 | AV *invoke_av; |
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307 | |
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308 | /* on_enter/on_leave */ |
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309 | AV *on_enter; |
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310 | AV *on_leave; |
236 | |
311 | |
237 | /* linked list */ |
312 | /* linked list */ |
238 | struct coro *next, *prev; |
313 | struct coro *next, *prev; |
239 | HV *hv; /* the perl hash associated with this coro, if any */ |
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240 | }; |
314 | }; |
241 | |
315 | |
242 | typedef struct coro *Coro__State; |
316 | typedef struct coro *Coro__State; |
243 | typedef struct coro *Coro__State_or_hashref; |
317 | typedef struct coro *Coro__State_or_hashref; |
244 | |
318 | |
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319 | /* the following variables are effectively part of the perl context */ |
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320 | /* and get copied between struct coro and these variables */ |
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321 | /* the mainr easonw e don't support windows process emulation */ |
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322 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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323 | |
245 | /** Coro ********************************************************************/ |
324 | /** Coro ********************************************************************/ |
246 | |
325 | |
247 | #define PRIO_MAX 3 |
326 | #define CORO_PRIO_MAX 3 |
248 | #define PRIO_HIGH 1 |
327 | #define CORO_PRIO_HIGH 1 |
249 | #define PRIO_NORMAL 0 |
328 | #define CORO_PRIO_NORMAL 0 |
250 | #define PRIO_LOW -1 |
329 | #define CORO_PRIO_LOW -1 |
251 | #define PRIO_IDLE -3 |
330 | #define CORO_PRIO_IDLE -3 |
252 | #define PRIO_MIN -4 |
331 | #define CORO_PRIO_MIN -4 |
253 | |
332 | |
254 | /* for Coro.pm */ |
333 | /* for Coro.pm */ |
255 | static SV *coro_current; |
334 | static SV *coro_current; |
256 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
335 | static SV *coro_readyhook; |
257 | static int coro_nready; |
336 | static struct coro *coro_ready [CORO_PRIO_MAX - CORO_PRIO_MIN + 1][2]; /* head|tail */ |
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337 | static CV *cv_coro_run, *cv_coro_terminate; |
258 | static struct coro *coro_first; |
338 | static struct coro *coro_first; |
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339 | #define coro_nready coroapi.nready |
259 | |
340 | |
260 | /** lowlevel stuff **********************************************************/ |
341 | /** lowlevel stuff **********************************************************/ |
261 | |
342 | |
262 | static SV * |
343 | static SV * |
263 | coro_get_sv (const char *name, int create) |
344 | coro_get_sv (pTHX_ const char *name, int create) |
264 | { |
345 | { |
265 | #if PERL_VERSION_ATLEAST (5,9,0) |
346 | #if PERL_VERSION_ATLEAST (5,10,0) |
266 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
347 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
267 | get_sv (name, create); |
348 | get_sv (name, create); |
268 | #endif |
349 | #endif |
269 | return get_sv (name, create); |
350 | return get_sv (name, create); |
270 | } |
351 | } |
271 | |
352 | |
272 | static SV * |
353 | static AV * |
273 | coro_get_av (const char *name, int create) |
354 | coro_get_av (pTHX_ const char *name, int create) |
274 | { |
355 | { |
275 | #if PERL_VERSION_ATLEAST (5,9,0) |
356 | #if PERL_VERSION_ATLEAST (5,10,0) |
276 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
357 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
277 | get_av (name, create); |
358 | get_av (name, create); |
278 | #endif |
359 | #endif |
279 | return get_av (name, create); |
360 | return get_av (name, create); |
280 | } |
361 | } |
281 | |
362 | |
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363 | static HV * |
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364 | coro_get_hv (pTHX_ const char *name, int create) |
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365 | { |
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366 | #if PERL_VERSION_ATLEAST (5,10,0) |
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367 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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368 | get_hv (name, create); |
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369 | #endif |
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370 | return get_hv (name, create); |
|
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371 | } |
|
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372 | |
|
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373 | /* may croak */ |
|
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374 | INLINE CV * |
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375 | coro_sv_2cv (pTHX_ SV *sv) |
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376 | { |
|
|
377 | HV *st; |
|
|
378 | GV *gvp; |
|
|
379 | CV *cv = sv_2cv (sv, &st, &gvp, 0); |
|
|
380 | |
|
|
381 | if (!cv) |
|
|
382 | croak ("code reference expected"); |
|
|
383 | |
|
|
384 | return cv; |
|
|
385 | } |
|
|
386 | |
|
|
387 | /*****************************************************************************/ |
|
|
388 | /* magic glue */ |
|
|
389 | |
|
|
390 | #define CORO_MAGIC_type_cv 26 |
|
|
391 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
|
|
392 | |
|
|
393 | #define CORO_MAGIC_NN(sv, type) \ |
|
|
394 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
|
|
395 | ? SvMAGIC (sv) \ |
|
|
396 | : mg_find (sv, type)) |
|
|
397 | |
|
|
398 | #define CORO_MAGIC(sv, type) \ |
|
|
399 | (expect_true (SvMAGIC (sv)) \ |
|
|
400 | ? CORO_MAGIC_NN (sv, type) \ |
|
|
401 | : 0) |
|
|
402 | |
|
|
403 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
404 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
405 | |
|
|
406 | INLINE struct coro * |
|
|
407 | SvSTATE_ (pTHX_ SV *coro) |
|
|
408 | { |
|
|
409 | HV *stash; |
|
|
410 | MAGIC *mg; |
|
|
411 | |
|
|
412 | if (SvROK (coro)) |
|
|
413 | coro = SvRV (coro); |
|
|
414 | |
|
|
415 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
416 | croak ("Coro::State object required"); |
|
|
417 | |
|
|
418 | stash = SvSTASH (coro); |
|
|
419 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
420 | { |
|
|
421 | /* very slow, but rare, check */ |
|
|
422 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
423 | croak ("Coro::State object required"); |
|
|
424 | } |
|
|
425 | |
|
|
426 | mg = CORO_MAGIC_state (coro); |
|
|
427 | return (struct coro *)mg->mg_ptr; |
|
|
428 | } |
|
|
429 | |
|
|
430 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
431 | |
|
|
432 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
433 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
434 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
435 | |
|
|
436 | /*****************************************************************************/ |
|
|
437 | /* padlist management and caching */ |
|
|
438 | |
282 | static AV * |
439 | static AV * |
283 | coro_clone_padlist (pTHX_ CV *cv) |
440 | coro_derive_padlist (pTHX_ CV *cv) |
284 | { |
441 | { |
285 | AV *padlist = CvPADLIST (cv); |
442 | AV *padlist = CvPADLIST (cv); |
286 | AV *newpadlist, *newpad; |
443 | AV *newpadlist, *newpad; |
287 | |
444 | |
288 | newpadlist = newAV (); |
445 | newpadlist = newAV (); |
289 | AvREAL_off (newpadlist); |
446 | AvREAL_off (newpadlist); |
290 | #if PERL_VERSION_ATLEAST (5,9,0) |
447 | #if PERL_VERSION_ATLEAST (5,10,0) |
291 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
448 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
292 | #else |
449 | #else |
293 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
450 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
294 | #endif |
451 | #endif |
295 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
452 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
296 | --AvFILLp (padlist); |
453 | --AvFILLp (padlist); |
297 | |
454 | |
298 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
455 | av_store (newpadlist, 0, SvREFCNT_inc_NN (AvARRAY (padlist)[0])); |
299 | av_store (newpadlist, 1, (SV *)newpad); |
456 | av_store (newpadlist, 1, (SV *)newpad); |
300 | |
457 | |
301 | return newpadlist; |
458 | return newpadlist; |
302 | } |
459 | } |
303 | |
460 | |
304 | static void |
461 | static void |
305 | free_padlist (pTHX_ AV *padlist) |
462 | free_padlist (pTHX_ AV *padlist) |
306 | { |
463 | { |
307 | /* may be during global destruction */ |
464 | /* may be during global destruction */ |
308 | if (SvREFCNT (padlist)) |
465 | if (!IN_DESTRUCT) |
309 | { |
466 | { |
310 | I32 i = AvFILLp (padlist); |
467 | I32 i = AvFILLp (padlist); |
311 | while (i >= 0) |
468 | |
|
|
469 | while (i > 0) /* special-case index 0 */ |
312 | { |
470 | { |
313 | SV **svp = av_fetch (padlist, i--, FALSE); |
471 | /* we try to be extra-careful here */ |
314 | if (svp) |
472 | AV *av = (AV *)AvARRAY (padlist)[i--]; |
315 | { |
473 | I32 j = AvFILLp (av); |
316 | SV *sv; |
474 | |
317 | while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
475 | while (j >= 0) |
|
|
476 | SvREFCNT_dec (AvARRAY (av)[j--]); |
|
|
477 | |
|
|
478 | AvFILLp (av) = -1; |
318 | SvREFCNT_dec (sv); |
479 | SvREFCNT_dec (av); |
319 | |
|
|
320 | SvREFCNT_dec (*svp); |
|
|
321 | } |
|
|
322 | } |
480 | } |
323 | |
481 | |
|
|
482 | SvREFCNT_dec (AvARRAY (padlist)[0]); |
|
|
483 | |
|
|
484 | AvFILLp (padlist) = -1; |
324 | SvREFCNT_dec ((SV*)padlist); |
485 | SvREFCNT_dec ((SV*)padlist); |
325 | } |
486 | } |
326 | } |
487 | } |
327 | |
488 | |
328 | static int |
489 | static int |
329 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
490 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
330 | { |
491 | { |
331 | AV *padlist; |
492 | AV *padlist; |
332 | AV *av = (AV *)mg->mg_obj; |
493 | AV *av = (AV *)mg->mg_obj; |
|
|
494 | |
|
|
495 | /* perl manages to free our internal AV and _then_ call us */ |
|
|
496 | if (IN_DESTRUCT) |
|
|
497 | return; |
333 | |
498 | |
334 | /* casting is fun. */ |
499 | /* casting is fun. */ |
335 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
500 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
336 | free_padlist (aTHX_ padlist); |
501 | free_padlist (aTHX_ padlist); |
337 | |
502 | |
338 | SvREFCNT_dec (av); |
503 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
339 | |
504 | |
340 | return 0; |
505 | return 0; |
341 | } |
506 | } |
342 | |
507 | |
343 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
508 | static MGVTBL coro_cv_vtbl = { |
344 | |
509 | 0, 0, 0, 0, |
345 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
510 | coro_cv_free |
346 | |
511 | }; |
347 | #define CORO_MAGIC(cv) \ |
|
|
348 | SvMAGIC (cv) \ |
|
|
349 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
|
|
350 | ? SvMAGIC (cv) \ |
|
|
351 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
|
|
352 | : 0 |
|
|
353 | |
|
|
354 | static struct coro * |
|
|
355 | SvSTATE_ (pTHX_ SV *coro) |
|
|
356 | { |
|
|
357 | HV *stash; |
|
|
358 | MAGIC *mg; |
|
|
359 | |
|
|
360 | if (SvROK (coro)) |
|
|
361 | coro = SvRV (coro); |
|
|
362 | |
|
|
363 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
364 | croak ("Coro::State object required"); |
|
|
365 | |
|
|
366 | stash = SvSTASH (coro); |
|
|
367 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
368 | { |
|
|
369 | /* very slow, but rare, check */ |
|
|
370 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
371 | croak ("Coro::State object required"); |
|
|
372 | } |
|
|
373 | |
|
|
374 | mg = CORO_MAGIC (coro); |
|
|
375 | return (struct coro *)mg->mg_ptr; |
|
|
376 | } |
|
|
377 | |
|
|
378 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
379 | |
512 | |
380 | /* the next two functions merely cache the padlists */ |
513 | /* the next two functions merely cache the padlists */ |
381 | static void |
514 | static void |
382 | get_padlist (pTHX_ CV *cv) |
515 | get_padlist (pTHX_ CV *cv) |
383 | { |
516 | { |
384 | MAGIC *mg = CORO_MAGIC (cv); |
517 | MAGIC *mg = CORO_MAGIC_cv (cv); |
385 | AV *av; |
518 | AV *av; |
386 | |
519 | |
387 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
520 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
388 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
521 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
389 | else |
522 | else |
390 | { |
523 | { |
391 | #if CORO_PREFER_PERL_FUNCTIONS |
524 | #if CORO_PREFER_PERL_FUNCTIONS |
392 | /* this is probably cleaner, but also slower? */ |
525 | /* this is probably cleaner? but also slower! */ |
|
|
526 | /* in practise, it seems to be less stable */ |
393 | CV *cp = Perl_cv_clone (cv); |
527 | CV *cp = Perl_cv_clone (aTHX_ cv); |
394 | CvPADLIST (cv) = CvPADLIST (cp); |
528 | CvPADLIST (cv) = CvPADLIST (cp); |
395 | CvPADLIST (cp) = 0; |
529 | CvPADLIST (cp) = 0; |
396 | SvREFCNT_dec (cp); |
530 | SvREFCNT_dec (cp); |
397 | #else |
531 | #else |
398 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
532 | CvPADLIST (cv) = coro_derive_padlist (aTHX_ cv); |
399 | #endif |
533 | #endif |
400 | } |
534 | } |
401 | } |
535 | } |
402 | |
536 | |
403 | static void |
537 | static void |
404 | put_padlist (pTHX_ CV *cv) |
538 | put_padlist (pTHX_ CV *cv) |
405 | { |
539 | { |
406 | MAGIC *mg = CORO_MAGIC (cv); |
540 | MAGIC *mg = CORO_MAGIC_cv (cv); |
407 | AV *av; |
541 | AV *av; |
408 | |
542 | |
409 | if (expect_false (!mg)) |
543 | if (expect_false (!mg)) |
410 | { |
544 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
411 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
412 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
413 | mg->mg_virtual = &vtbl_coro; |
|
|
414 | mg->mg_obj = (SV *)newAV (); |
|
|
415 | } |
|
|
416 | |
545 | |
417 | av = (AV *)mg->mg_obj; |
546 | av = (AV *)mg->mg_obj; |
418 | |
547 | |
419 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
548 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
420 | av_extend (av, AvMAX (av) + 1); |
549 | av_extend (av, AvFILLp (av) + 1); |
421 | |
550 | |
422 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
551 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
423 | } |
552 | } |
424 | |
553 | |
425 | /** load & save, init *******************************************************/ |
554 | /** load & save, init *******************************************************/ |
|
|
555 | |
|
|
556 | static void |
|
|
557 | on_enterleave_call (pTHX_ SV *cb); |
426 | |
558 | |
427 | static void |
559 | static void |
428 | load_perl (pTHX_ Coro__State c) |
560 | load_perl (pTHX_ Coro__State c) |
429 | { |
561 | { |
430 | perl_slots *slot = c->slot; |
562 | perl_slots *slot = c->slot; |
431 | c->slot = 0; |
563 | c->slot = 0; |
432 | |
564 | |
433 | PL_mainstack = c->mainstack; |
565 | PL_mainstack = c->mainstack; |
434 | |
566 | |
435 | GvSV (PL_defgv) = slot->defsv; |
567 | GvSV (PL_defgv) = slot->defsv; |
436 | GvAV (PL_defgv) = slot->defav; |
568 | GvAV (PL_defgv) = slot->defav; |
437 | GvSV (PL_errgv) = slot->errsv; |
569 | GvSV (PL_errgv) = slot->errsv; |
438 | GvSV (irsgv) = slot->irsgv; |
570 | GvSV (irsgv) = slot->irsgv; |
|
|
571 | GvHV (PL_hintgv) = slot->hinthv; |
439 | |
572 | |
440 | #define VAR(name,type) PL_ ## name = slot->name; |
573 | #define VAR(name,type) PL_ ## name = slot->name; |
441 | # include "state.h" |
574 | # include "state.h" |
442 | #undef VAR |
575 | #undef VAR |
443 | |
576 | |
… | |
… | |
454 | CvPADLIST (cv) = (AV *)POPs; |
587 | CvPADLIST (cv) = (AV *)POPs; |
455 | } |
588 | } |
456 | |
589 | |
457 | PUTBACK; |
590 | PUTBACK; |
458 | } |
591 | } |
|
|
592 | |
|
|
593 | slf_frame = c->slf_frame; |
|
|
594 | CORO_THROW = c->except; |
|
|
595 | |
|
|
596 | if (expect_false (c->on_enter)) |
|
|
597 | { |
|
|
598 | int i; |
|
|
599 | |
|
|
600 | for (i = 0; i <= AvFILLp (c->on_enter); ++i) |
|
|
601 | on_enterleave_call (aTHX_ AvARRAY (c->on_enter)[i]); |
|
|
602 | } |
459 | } |
603 | } |
460 | |
604 | |
461 | static void |
605 | static void |
462 | save_perl (pTHX_ Coro__State c) |
606 | save_perl (pTHX_ Coro__State c) |
463 | { |
607 | { |
|
|
608 | if (expect_false (c->on_leave)) |
|
|
609 | { |
|
|
610 | int i; |
|
|
611 | |
|
|
612 | for (i = AvFILLp (c->on_leave); i >= 0; --i) |
|
|
613 | on_enterleave_call (aTHX_ AvARRAY (c->on_leave)[i]); |
|
|
614 | } |
|
|
615 | |
|
|
616 | c->except = CORO_THROW; |
|
|
617 | c->slf_frame = slf_frame; |
|
|
618 | |
464 | { |
619 | { |
465 | dSP; |
620 | dSP; |
466 | I32 cxix = cxstack_ix; |
621 | I32 cxix = cxstack_ix; |
467 | PERL_CONTEXT *ccstk = cxstack; |
622 | PERL_CONTEXT *ccstk = cxstack; |
468 | PERL_SI *top_si = PL_curstackinfo; |
623 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
478 | { |
633 | { |
479 | while (expect_true (cxix >= 0)) |
634 | while (expect_true (cxix >= 0)) |
480 | { |
635 | { |
481 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
636 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
482 | |
637 | |
483 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
638 | if (expect_true (CxTYPE (cx) == CXt_SUB) || expect_false (CxTYPE (cx) == CXt_FORMAT)) |
484 | { |
639 | { |
485 | CV *cv = cx->blk_sub.cv; |
640 | CV *cv = cx->blk_sub.cv; |
486 | |
641 | |
487 | if (expect_true (CvDEPTH (cv))) |
642 | if (expect_true (CvDEPTH (cv))) |
488 | { |
643 | { |
489 | EXTEND (SP, 3); |
644 | EXTEND (SP, 3); |
490 | PUSHs ((SV *)CvPADLIST (cv)); |
645 | PUSHs ((SV *)CvPADLIST (cv)); |
491 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
646 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
492 | PUSHs ((SV *)cv); |
647 | PUSHs ((SV *)cv); |
493 | |
648 | |
494 | CvDEPTH (cv) = 0; |
649 | CvDEPTH (cv) = 0; |
495 | get_padlist (aTHX_ cv); |
650 | get_padlist (aTHX_ cv); |
496 | } |
651 | } |
… | |
… | |
507 | |
662 | |
508 | PUTBACK; |
663 | PUTBACK; |
509 | } |
664 | } |
510 | |
665 | |
511 | /* allocate some space on the context stack for our purposes */ |
666 | /* allocate some space on the context stack for our purposes */ |
|
|
667 | /* we manually unroll here, as usually 2 slots is enough */ |
|
|
668 | if (SLOT_COUNT >= 1) CXINC; |
|
|
669 | if (SLOT_COUNT >= 2) CXINC; |
|
|
670 | if (SLOT_COUNT >= 3) CXINC; |
512 | { |
671 | { |
513 | /* we manually unroll here, as usually 2 slots is enough */ |
|
|
514 | int i; |
672 | int i; |
515 | if (SLOT_COUNT >= 1) CXINC; |
|
|
516 | if (SLOT_COUNT >= 2) CXINC; |
|
|
517 | if (SLOT_COUNT >= 3) CXINC; |
|
|
518 | for (i = 3; i < SLOT_COUNT; ++i) |
673 | for (i = 3; i < SLOT_COUNT; ++i) |
519 | CXINC; |
674 | CXINC; |
520 | |
|
|
521 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
522 | } |
675 | } |
|
|
676 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
523 | |
677 | |
524 | c->mainstack = PL_mainstack; |
678 | c->mainstack = PL_mainstack; |
525 | |
679 | |
526 | { |
680 | { |
527 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
681 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
528 | |
682 | |
529 | slot->defav = GvAV (PL_defgv); |
683 | slot->defav = GvAV (PL_defgv); |
530 | slot->defsv = DEFSV; |
684 | slot->defsv = DEFSV; |
531 | slot->errsv = ERRSV; |
685 | slot->errsv = ERRSV; |
532 | slot->irsgv = GvSV (irsgv); |
686 | slot->irsgv = GvSV (irsgv); |
|
|
687 | slot->hinthv = GvHV (PL_hintgv); |
533 | |
688 | |
534 | #define VAR(name,type) slot->name = PL_ ## name; |
689 | #define VAR(name,type) slot->name = PL_ ## name; |
535 | # include "state.h" |
690 | # include "state.h" |
536 | #undef VAR |
691 | #undef VAR |
537 | } |
692 | } |
538 | } |
693 | } |
539 | |
694 | |
540 | /* |
695 | /* |
541 | * allocate various perl stacks. This is an exact copy |
696 | * allocate various perl stacks. This is almost an exact copy |
542 | * of perl.c:init_stacks, except that it uses less memory |
697 | * of perl.c:init_stacks, except that it uses less memory |
543 | * on the (sometimes correct) assumption that coroutines do |
698 | * on the (sometimes correct) assumption that coroutines do |
544 | * not usually need a lot of stackspace. |
699 | * not usually need a lot of stackspace. |
545 | */ |
700 | */ |
546 | #if CORO_PREFER_PERL_FUNCTIONS |
701 | #if CORO_PREFER_PERL_FUNCTIONS |
547 | # define coro_init_stacks init_stacks |
702 | # define coro_init_stacks(thx) init_stacks () |
548 | #else |
703 | #else |
549 | static void |
704 | static void |
550 | coro_init_stacks (pTHX) |
705 | coro_init_stacks (pTHX) |
551 | { |
706 | { |
552 | PL_curstackinfo = new_stackinfo(32, 8); |
707 | PL_curstackinfo = new_stackinfo(32, 8); |
… | |
… | |
577 | |
732 | |
578 | New(54,PL_savestack,24,ANY); |
733 | New(54,PL_savestack,24,ANY); |
579 | PL_savestack_ix = 0; |
734 | PL_savestack_ix = 0; |
580 | PL_savestack_max = 24; |
735 | PL_savestack_max = 24; |
581 | |
736 | |
582 | #if !PERL_VERSION_ATLEAST (5,9,0) |
737 | #if !PERL_VERSION_ATLEAST (5,10,0) |
583 | New(54,PL_retstack,4,OP*); |
738 | New(54,PL_retstack,4,OP*); |
584 | PL_retstack_ix = 0; |
739 | PL_retstack_ix = 0; |
585 | PL_retstack_max = 4; |
740 | PL_retstack_max = 4; |
586 | #endif |
741 | #endif |
587 | } |
742 | } |
… | |
… | |
589 | |
744 | |
590 | /* |
745 | /* |
591 | * destroy the stacks, the callchain etc... |
746 | * destroy the stacks, the callchain etc... |
592 | */ |
747 | */ |
593 | static void |
748 | static void |
594 | coro_destroy_stacks (pTHX) |
749 | coro_destruct_stacks (pTHX) |
595 | { |
750 | { |
596 | while (PL_curstackinfo->si_next) |
751 | while (PL_curstackinfo->si_next) |
597 | PL_curstackinfo = PL_curstackinfo->si_next; |
752 | PL_curstackinfo = PL_curstackinfo->si_next; |
598 | |
753 | |
599 | while (PL_curstackinfo) |
754 | while (PL_curstackinfo) |
… | |
… | |
610 | |
765 | |
611 | Safefree (PL_tmps_stack); |
766 | Safefree (PL_tmps_stack); |
612 | Safefree (PL_markstack); |
767 | Safefree (PL_markstack); |
613 | Safefree (PL_scopestack); |
768 | Safefree (PL_scopestack); |
614 | Safefree (PL_savestack); |
769 | Safefree (PL_savestack); |
615 | #if !PERL_VERSION_ATLEAST (5,9,0) |
770 | #if !PERL_VERSION_ATLEAST (5,10,0) |
616 | Safefree (PL_retstack); |
771 | Safefree (PL_retstack); |
617 | #endif |
772 | #endif |
618 | } |
773 | } |
|
|
774 | |
|
|
775 | #define CORO_RSS \ |
|
|
776 | rss += sizeof (SYM (curstackinfo)); \ |
|
|
777 | rss += (SYM (curstackinfo->si_cxmax) + 1) * sizeof (PERL_CONTEXT); \ |
|
|
778 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (SYM (curstack))) * sizeof (SV *); \ |
|
|
779 | rss += SYM (tmps_max) * sizeof (SV *); \ |
|
|
780 | rss += (SYM (markstack_max) - SYM (markstack_ptr)) * sizeof (I32); \ |
|
|
781 | rss += SYM (scopestack_max) * sizeof (I32); \ |
|
|
782 | rss += SYM (savestack_max) * sizeof (ANY); |
619 | |
783 | |
620 | static size_t |
784 | static size_t |
621 | coro_rss (pTHX_ struct coro *coro) |
785 | coro_rss (pTHX_ struct coro *coro) |
622 | { |
786 | { |
623 | size_t rss = sizeof (*coro); |
787 | size_t rss = sizeof (*coro); |
624 | |
788 | |
625 | if (coro->mainstack) |
789 | if (coro->mainstack) |
626 | { |
790 | { |
627 | perl_slots tmp_slot; |
|
|
628 | perl_slots *slot; |
|
|
629 | |
|
|
630 | if (coro->flags & CF_RUNNING) |
791 | if (coro->flags & CF_RUNNING) |
631 | { |
792 | { |
632 | slot = &tmp_slot; |
793 | #define SYM(sym) PL_ ## sym |
633 | |
794 | CORO_RSS; |
634 | #define VAR(name,type) slot->name = PL_ ## name; |
|
|
635 | # include "state.h" |
|
|
636 | #undef VAR |
795 | #undef SYM |
637 | } |
796 | } |
638 | else |
797 | else |
639 | slot = coro->slot; |
798 | { |
640 | |
799 | #define SYM(sym) coro->slot->sym |
641 | rss += sizeof (slot->curstackinfo); |
800 | CORO_RSS; |
642 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
801 | #undef SYM |
643 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
802 | } |
644 | rss += slot->tmps_max * sizeof (SV *); |
|
|
645 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
|
|
646 | rss += slot->scopestack_max * sizeof (I32); |
|
|
647 | rss += slot->savestack_max * sizeof (ANY); |
|
|
648 | |
|
|
649 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
650 | rss += slot->retstack_max * sizeof (OP *); |
|
|
651 | #endif |
|
|
652 | } |
803 | } |
653 | |
804 | |
654 | return rss; |
805 | return rss; |
655 | } |
806 | } |
656 | |
807 | |
657 | /** coroutine stack handling ************************************************/ |
808 | /** coroutine stack handling ************************************************/ |
658 | |
809 | |
|
|
810 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
811 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
812 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
813 | |
|
|
814 | /* apparently < 5.8.8 */ |
|
|
815 | #ifndef MgPV_nolen_const |
|
|
816 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
817 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
818 | (const char*)(mg)->mg_ptr) |
|
|
819 | #endif |
|
|
820 | |
|
|
821 | /* |
|
|
822 | * This overrides the default magic get method of %SIG elements. |
|
|
823 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
824 | * and instead of trying to save and restore the hash elements, we just provide |
|
|
825 | * readback here. |
|
|
826 | */ |
659 | static void |
827 | static int |
|
|
828 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
829 | { |
|
|
830 | const char *s = MgPV_nolen_const (mg); |
|
|
831 | |
|
|
832 | if (*s == '_') |
|
|
833 | { |
|
|
834 | SV **svp = 0; |
|
|
835 | |
|
|
836 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
837 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
838 | |
|
|
839 | if (svp) |
|
|
840 | { |
|
|
841 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
842 | return 0; |
|
|
843 | } |
|
|
844 | } |
|
|
845 | |
|
|
846 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
847 | } |
|
|
848 | |
|
|
849 | static int |
|
|
850 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
851 | { |
|
|
852 | const char *s = MgPV_nolen_const (mg); |
|
|
853 | |
|
|
854 | if (*s == '_') |
|
|
855 | { |
|
|
856 | SV **svp = 0; |
|
|
857 | |
|
|
858 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
859 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
860 | |
|
|
861 | if (svp) |
|
|
862 | { |
|
|
863 | SV *old = *svp; |
|
|
864 | *svp = 0; |
|
|
865 | SvREFCNT_dec (old); |
|
|
866 | return 0; |
|
|
867 | } |
|
|
868 | } |
|
|
869 | |
|
|
870 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
871 | } |
|
|
872 | |
|
|
873 | static int |
|
|
874 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
875 | { |
|
|
876 | const char *s = MgPV_nolen_const (mg); |
|
|
877 | |
|
|
878 | if (*s == '_') |
|
|
879 | { |
|
|
880 | SV **svp = 0; |
|
|
881 | |
|
|
882 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
883 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
884 | |
|
|
885 | if (svp) |
|
|
886 | { |
|
|
887 | SV *old = *svp; |
|
|
888 | *svp = SvOK (sv) ? newSVsv (sv) : 0; |
|
|
889 | SvREFCNT_dec (old); |
|
|
890 | return 0; |
|
|
891 | } |
|
|
892 | } |
|
|
893 | |
|
|
894 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
895 | } |
|
|
896 | |
|
|
897 | static void |
|
|
898 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
899 | { |
|
|
900 | /* kind of mega-hacky, but works */ |
|
|
901 | ta->next = ta->prev = (struct coro *)ta; |
|
|
902 | } |
|
|
903 | |
|
|
904 | static int |
|
|
905 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
906 | { |
|
|
907 | return 0; |
|
|
908 | } |
|
|
909 | |
|
|
910 | static int |
|
|
911 | slf_check_repeat (pTHX_ struct CoroSLF *frame) |
|
|
912 | { |
|
|
913 | return 1; |
|
|
914 | } |
|
|
915 | |
|
|
916 | static UNOP coro_setup_op; |
|
|
917 | |
|
|
918 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
660 | coro_setup (pTHX_ struct coro *coro) |
919 | coro_setup (pTHX_ struct coro *coro) |
661 | { |
920 | { |
662 | /* |
921 | /* |
663 | * emulate part of the perl startup here. |
922 | * emulate part of the perl startup here. |
664 | */ |
923 | */ |
… | |
… | |
666 | |
925 | |
667 | PL_runops = RUNOPS_DEFAULT; |
926 | PL_runops = RUNOPS_DEFAULT; |
668 | PL_curcop = &PL_compiling; |
927 | PL_curcop = &PL_compiling; |
669 | PL_in_eval = EVAL_NULL; |
928 | PL_in_eval = EVAL_NULL; |
670 | PL_comppad = 0; |
929 | PL_comppad = 0; |
|
|
930 | PL_comppad_name = 0; |
|
|
931 | PL_comppad_name_fill = 0; |
|
|
932 | PL_comppad_name_floor = 0; |
671 | PL_curpm = 0; |
933 | PL_curpm = 0; |
672 | PL_curpad = 0; |
934 | PL_curpad = 0; |
673 | PL_localizing = 0; |
935 | PL_localizing = 0; |
674 | PL_dirty = 0; |
936 | PL_dirty = 0; |
675 | PL_restartop = 0; |
937 | PL_restartop = 0; |
676 | PL_diehook = SvREFCNT_inc (sv_diehook); |
938 | #if PERL_VERSION_ATLEAST (5,10,0) |
677 | PL_warnhook = SvREFCNT_inc (sv_warnhook); |
939 | PL_parser = 0; |
|
|
940 | #endif |
|
|
941 | PL_hints = 0; |
|
|
942 | |
|
|
943 | /* recreate the die/warn hooks */ |
|
|
944 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
945 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
678 | |
946 | |
679 | GvSV (PL_defgv) = newSV (0); |
947 | GvSV (PL_defgv) = newSV (0); |
680 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
948 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
681 | GvSV (PL_errgv) = newSV (0); |
949 | GvSV (PL_errgv) = newSV (0); |
682 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
950 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
951 | GvHV (PL_hintgv) = 0; |
683 | PL_rs = newSVsv (GvSV (irsgv)); |
952 | PL_rs = newSVsv (GvSV (irsgv)); |
684 | PL_defoutgv = (GV *)SvREFCNT_inc (stdoutgv); |
953 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
685 | |
954 | |
686 | { |
955 | { |
687 | dSP; |
956 | dSP; |
688 | LOGOP myop; |
957 | UNOP myop; |
689 | |
958 | |
690 | Zero (&myop, 1, LOGOP); |
959 | Zero (&myop, 1, UNOP); |
691 | myop.op_next = Nullop; |
960 | myop.op_next = Nullop; |
|
|
961 | myop.op_type = OP_ENTERSUB; |
692 | myop.op_flags = OPf_WANT_VOID; |
962 | myop.op_flags = OPf_WANT_VOID; |
693 | |
963 | |
694 | PUSHMARK (SP); |
964 | PUSHMARK (SP); |
695 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
965 | PUSHs ((SV *)coro->startcv); |
696 | PUTBACK; |
966 | PUTBACK; |
697 | PL_op = (OP *)&myop; |
967 | PL_op = (OP *)&myop; |
698 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
968 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
699 | SPAGAIN; |
|
|
700 | } |
969 | } |
701 | |
970 | |
702 | ENTER; /* necessary e.g. for dounwind and to balance the xsub-entersub */ |
971 | /* this newly created coroutine might be run on an existing cctx which most |
703 | } |
972 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
973 | */ |
|
|
974 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
975 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
704 | |
976 | |
|
|
977 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
978 | coro_setup_op.op_next = PL_op; |
|
|
979 | coro_setup_op.op_type = OP_ENTERSUB; |
|
|
980 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
981 | /* no flags etc. required, as an init function won't be called */ |
|
|
982 | |
|
|
983 | PL_op = (OP *)&coro_setup_op; |
|
|
984 | |
|
|
985 | /* copy throw, in case it was set before coro_setup */ |
|
|
986 | CORO_THROW = coro->except; |
|
|
987 | } |
|
|
988 | |
705 | static void |
989 | static void |
706 | coro_destroy (pTHX_ struct coro *coro) |
990 | coro_unwind_stacks (pTHX) |
707 | { |
991 | { |
708 | if (!IN_DESTRUCT) |
992 | if (!IN_DESTRUCT) |
709 | { |
993 | { |
710 | /* restore all saved variables and stuff */ |
994 | /* restore all saved variables and stuff */ |
711 | LEAVE_SCOPE (0); |
995 | LEAVE_SCOPE (0); |
… | |
… | |
719 | POPSTACK_TO (PL_mainstack); |
1003 | POPSTACK_TO (PL_mainstack); |
720 | |
1004 | |
721 | /* unwind main stack */ |
1005 | /* unwind main stack */ |
722 | dounwind (-1); |
1006 | dounwind (-1); |
723 | } |
1007 | } |
|
|
1008 | } |
724 | |
1009 | |
725 | SvREFCNT_dec (GvSV (PL_defgv)); |
1010 | static void |
726 | SvREFCNT_dec (GvAV (PL_defgv)); |
1011 | coro_destruct_perl (pTHX_ struct coro *coro) |
727 | SvREFCNT_dec (GvSV (PL_errgv)); |
1012 | { |
728 | SvREFCNT_dec (PL_defoutgv); |
1013 | SV *svf [9]; |
729 | SvREFCNT_dec (PL_rs); |
|
|
730 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
731 | |
1014 | |
732 | SvREFCNT_dec (PL_diehook); |
|
|
733 | SvREFCNT_dec (PL_warnhook); |
|
|
734 | |
1015 | { |
|
|
1016 | struct coro *current = SvSTATE_current; |
|
|
1017 | |
|
|
1018 | assert (("FATAL: tried to destroy currently running coroutine", coro->mainstack != PL_mainstack)); |
|
|
1019 | |
|
|
1020 | save_perl (aTHX_ current); |
|
|
1021 | load_perl (aTHX_ coro); |
|
|
1022 | |
|
|
1023 | coro_unwind_stacks (aTHX); |
|
|
1024 | coro_destruct_stacks (aTHX); |
|
|
1025 | |
|
|
1026 | // now save some sv's to be free'd later |
|
|
1027 | svf [0] = GvSV (PL_defgv); |
|
|
1028 | svf [1] = (SV *)GvAV (PL_defgv); |
|
|
1029 | svf [2] = GvSV (PL_errgv); |
|
|
1030 | svf [3] = (SV *)PL_defoutgv; |
|
|
1031 | svf [4] = PL_rs; |
|
|
1032 | svf [5] = GvSV (irsgv); |
|
|
1033 | svf [6] = (SV *)GvHV (PL_hintgv); |
|
|
1034 | svf [7] = PL_diehook; |
|
|
1035 | svf [8] = PL_warnhook; |
|
|
1036 | assert (9 == sizeof (svf) / sizeof (*svf)); |
|
|
1037 | |
|
|
1038 | load_perl (aTHX_ current); |
|
|
1039 | } |
|
|
1040 | |
|
|
1041 | { |
|
|
1042 | int i; |
|
|
1043 | |
|
|
1044 | for (i = 0; i < sizeof (svf) / sizeof (*svf); ++i) |
|
|
1045 | SvREFCNT_dec (svf [i]); |
|
|
1046 | |
735 | SvREFCNT_dec (coro->saved_deffh); |
1047 | SvREFCNT_dec (coro->saved_deffh); |
736 | SvREFCNT_dec (coro->throw); |
1048 | SvREFCNT_dec (coro->rouse_cb); |
737 | |
1049 | SvREFCNT_dec (coro->invoke_cb); |
738 | coro_destroy_stacks (aTHX); |
1050 | SvREFCNT_dec (coro->invoke_av); |
|
|
1051 | } |
739 | } |
1052 | } |
740 | |
1053 | |
741 | static void |
1054 | INLINE void |
742 | free_coro_mortal (pTHX) |
1055 | free_coro_mortal (pTHX) |
743 | { |
1056 | { |
744 | if (expect_true (coro_mortal)) |
1057 | if (expect_true (coro_mortal)) |
745 | { |
1058 | { |
746 | SvREFCNT_dec (coro_mortal); |
1059 | SvREFCNT_dec (coro_mortal); |
… | |
… | |
751 | static int |
1064 | static int |
752 | runops_trace (pTHX) |
1065 | runops_trace (pTHX) |
753 | { |
1066 | { |
754 | COP *oldcop = 0; |
1067 | COP *oldcop = 0; |
755 | int oldcxix = -2; |
1068 | int oldcxix = -2; |
756 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
757 | coro_cctx *cctx = coro->cctx; |
|
|
758 | |
1069 | |
759 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
1070 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
760 | { |
1071 | { |
761 | PERL_ASYNC_CHECK (); |
1072 | PERL_ASYNC_CHECK (); |
762 | |
1073 | |
763 | if (cctx->flags & CC_TRACE_ALL) |
1074 | if (cctx_current->flags & CC_TRACE_ALL) |
764 | { |
1075 | { |
765 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
1076 | if (PL_op->op_type == OP_LEAVESUB && cctx_current->flags & CC_TRACE_SUB) |
766 | { |
1077 | { |
767 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1078 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
768 | SV **bot, **top; |
1079 | SV **bot, **top; |
769 | AV *av = newAV (); /* return values */ |
1080 | AV *av = newAV (); /* return values */ |
770 | SV **cb; |
1081 | SV **cb; |
… | |
… | |
780 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
1091 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
781 | : bot; |
1092 | : bot; |
782 | |
1093 | |
783 | av_extend (av, top - bot); |
1094 | av_extend (av, top - bot); |
784 | while (bot < top) |
1095 | while (bot < top) |
785 | av_push (av, SvREFCNT_inc (*bot++)); |
1096 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
786 | |
1097 | |
787 | PL_runops = RUNOPS_DEFAULT; |
1098 | PL_runops = RUNOPS_DEFAULT; |
788 | ENTER; |
1099 | ENTER; |
789 | SAVETMPS; |
1100 | SAVETMPS; |
790 | EXTEND (SP, 3); |
1101 | EXTEND (SP, 3); |
… | |
… | |
807 | |
1118 | |
808 | if (PL_curcop != &PL_compiling) |
1119 | if (PL_curcop != &PL_compiling) |
809 | { |
1120 | { |
810 | SV **cb; |
1121 | SV **cb; |
811 | |
1122 | |
812 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
1123 | if (oldcxix != cxstack_ix && cctx_current->flags & CC_TRACE_SUB) |
813 | { |
1124 | { |
814 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
1125 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
815 | |
1126 | |
816 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
1127 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
817 | { |
1128 | { |
818 | runops_proc_t old_runops = PL_runops; |
|
|
819 | dSP; |
1129 | dSP; |
820 | GV *gv = CvGV (cx->blk_sub.cv); |
1130 | GV *gv = CvGV (cx->blk_sub.cv); |
821 | SV *fullname = sv_2mortal (newSV (0)); |
1131 | SV *fullname = sv_2mortal (newSV (0)); |
822 | |
1132 | |
823 | if (isGV (gv)) |
1133 | if (isGV (gv)) |
… | |
… | |
828 | SAVETMPS; |
1138 | SAVETMPS; |
829 | EXTEND (SP, 3); |
1139 | EXTEND (SP, 3); |
830 | PUSHMARK (SP); |
1140 | PUSHMARK (SP); |
831 | PUSHs (&PL_sv_yes); |
1141 | PUSHs (&PL_sv_yes); |
832 | PUSHs (fullname); |
1142 | PUSHs (fullname); |
833 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1143 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
834 | PUTBACK; |
1144 | PUTBACK; |
835 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1145 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
836 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1146 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
837 | SPAGAIN; |
1147 | SPAGAIN; |
838 | FREETMPS; |
1148 | FREETMPS; |
… | |
… | |
841 | } |
1151 | } |
842 | |
1152 | |
843 | oldcxix = cxstack_ix; |
1153 | oldcxix = cxstack_ix; |
844 | } |
1154 | } |
845 | |
1155 | |
846 | if (cctx->flags & CC_TRACE_LINE) |
1156 | if (cctx_current->flags & CC_TRACE_LINE) |
847 | { |
1157 | { |
848 | dSP; |
1158 | dSP; |
849 | |
1159 | |
850 | PL_runops = RUNOPS_DEFAULT; |
1160 | PL_runops = RUNOPS_DEFAULT; |
851 | ENTER; |
1161 | ENTER; |
… | |
… | |
870 | |
1180 | |
871 | TAINT_NOT; |
1181 | TAINT_NOT; |
872 | return 0; |
1182 | return 0; |
873 | } |
1183 | } |
874 | |
1184 | |
875 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1185 | static struct CoroSLF cctx_ssl_frame; |
876 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1186 | |
877 | /* during execution of a perl program */ |
1187 | static void |
|
|
1188 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1189 | { |
|
|
1190 | ta->prev = 0; |
|
|
1191 | } |
|
|
1192 | |
|
|
1193 | static int |
|
|
1194 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1195 | { |
|
|
1196 | *frame = cctx_ssl_frame; |
|
|
1197 | |
|
|
1198 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1199 | } |
|
|
1200 | |
|
|
1201 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
878 | static void NOINLINE |
1202 | static void NOINLINE |
879 | prepare_cctx (pTHX_ coro_cctx *cctx) |
1203 | cctx_prepare (pTHX) |
880 | { |
1204 | { |
881 | dSP; |
|
|
882 | LOGOP myop; |
|
|
883 | |
|
|
884 | PL_top_env = &PL_start_env; |
1205 | PL_top_env = &PL_start_env; |
885 | |
1206 | |
886 | if (cctx->flags & CC_TRACE) |
1207 | if (cctx_current->flags & CC_TRACE) |
887 | PL_runops = runops_trace; |
1208 | PL_runops = runops_trace; |
888 | |
1209 | |
889 | Zero (&myop, 1, LOGOP); |
1210 | /* we already must be executing an SLF op, there is no other valid way |
890 | myop.op_next = PL_op; |
1211 | * that can lead to creation of a new cctx */ |
891 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1212 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1213 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
892 | |
1214 | |
893 | PUSHMARK (SP); |
1215 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
894 | EXTEND (SP, 2); |
1216 | cctx_ssl_frame = slf_frame; |
895 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1217 | |
896 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1218 | slf_frame.prepare = slf_prepare_set_stacklevel; |
897 | PUTBACK; |
1219 | slf_frame.check = slf_check_set_stacklevel; |
898 | PL_op = (OP *)&myop; |
1220 | } |
899 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1221 | |
900 | SPAGAIN; |
1222 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1223 | INLINE void |
|
|
1224 | transfer_tail (pTHX) |
|
|
1225 | { |
|
|
1226 | free_coro_mortal (aTHX); |
901 | } |
1227 | } |
902 | |
1228 | |
903 | /* |
1229 | /* |
904 | * this is a _very_ stripped down perl interpreter ;) |
1230 | * this is a _very_ stripped down perl interpreter ;) |
905 | */ |
1231 | */ |
906 | static void |
1232 | static void |
907 | coro_run (void *arg) |
1233 | cctx_run (void *arg) |
908 | { |
1234 | { |
|
|
1235 | #ifdef USE_ITHREADS |
|
|
1236 | # if CORO_PTHREAD |
|
|
1237 | PERL_SET_CONTEXT (coro_thx); |
|
|
1238 | # endif |
|
|
1239 | #endif |
|
|
1240 | { |
909 | dTHX; |
1241 | dTHX; |
910 | |
1242 | |
911 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1243 | /* normally we would need to skip the entersub here */ |
912 | UNLOCK; |
1244 | /* not doing so will re-execute it, which is exactly what we want */ |
913 | |
|
|
914 | /* we now skip the entersub that lead to transfer() */ |
|
|
915 | PL_op = PL_op->op_next; |
1245 | /* PL_nop = PL_nop->op_next */ |
916 | |
1246 | |
917 | /* inject a fake subroutine call to cctx_init */ |
1247 | /* inject a fake subroutine call to cctx_init */ |
918 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
1248 | cctx_prepare (aTHX); |
919 | |
1249 | |
|
|
1250 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1251 | transfer_tail (aTHX); |
|
|
1252 | |
920 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1253 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
921 | PL_restartop = PL_op; |
1254 | PL_restartop = PL_op; |
922 | perl_run (PL_curinterp); |
1255 | perl_run (PL_curinterp); |
923 | |
|
|
924 | /* |
1256 | /* |
|
|
1257 | * Unfortunately, there is no way to get at the return values of the |
|
|
1258 | * coro body here, as perl_run destroys these |
|
|
1259 | */ |
|
|
1260 | |
|
|
1261 | /* |
925 | * If perl-run returns we assume exit() was being called or the coro |
1262 | * If perl-run returns we assume exit() was being called or the coro |
926 | * fell off the end, which seems to be the only valid (non-bug) |
1263 | * fell off the end, which seems to be the only valid (non-bug) |
927 | * reason for perl_run to return. We try to exit by jumping to the |
1264 | * reason for perl_run to return. We try to exit by jumping to the |
928 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1265 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
929 | * coroutine as Coro has no such concept |
1266 | * coroutine as Coro has no such concept. |
|
|
1267 | * This actually isn't valid with the pthread backend, but OSes requiring |
|
|
1268 | * that backend are too broken to do it in a standards-compliant way. |
930 | */ |
1269 | */ |
931 | PL_top_env = main_top_env; |
1270 | PL_top_env = main_top_env; |
932 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1271 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1272 | } |
933 | } |
1273 | } |
934 | |
1274 | |
935 | static coro_cctx * |
1275 | static coro_cctx * |
936 | cctx_new () |
1276 | cctx_new () |
937 | { |
1277 | { |
938 | coro_cctx *cctx; |
1278 | coro_cctx *cctx; |
|
|
1279 | |
|
|
1280 | ++cctx_count; |
|
|
1281 | New (0, cctx, 1, coro_cctx); |
|
|
1282 | |
|
|
1283 | cctx->gen = cctx_gen; |
|
|
1284 | cctx->flags = 0; |
|
|
1285 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1286 | |
|
|
1287 | return cctx; |
|
|
1288 | } |
|
|
1289 | |
|
|
1290 | /* create a new cctx only suitable as source */ |
|
|
1291 | static coro_cctx * |
|
|
1292 | cctx_new_empty () |
|
|
1293 | { |
|
|
1294 | coro_cctx *cctx = cctx_new (); |
|
|
1295 | |
|
|
1296 | cctx->sptr = 0; |
|
|
1297 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1298 | |
|
|
1299 | return cctx; |
|
|
1300 | } |
|
|
1301 | |
|
|
1302 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1303 | static coro_cctx * |
|
|
1304 | cctx_new_run () |
|
|
1305 | { |
|
|
1306 | coro_cctx *cctx = cctx_new (); |
939 | void *stack_start; |
1307 | void *stack_start; |
940 | size_t stack_size; |
1308 | size_t stack_size; |
941 | |
1309 | |
942 | ++cctx_count; |
|
|
943 | |
|
|
944 | Newz (0, cctx, 1, coro_cctx); |
|
|
945 | |
|
|
946 | #if HAVE_MMAP |
1310 | #if HAVE_MMAP |
947 | |
|
|
948 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1311 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
949 | /* mmap supposedly does allocate-on-write for us */ |
1312 | /* mmap supposedly does allocate-on-write for us */ |
950 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1313 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
951 | |
1314 | |
952 | if (cctx->sptr != (void *)-1) |
1315 | if (cctx->sptr != (void *)-1) |
953 | { |
1316 | { |
954 | # if CORO_STACKGUARD |
1317 | #if CORO_STACKGUARD |
955 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1318 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
956 | # endif |
1319 | #endif |
957 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1320 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
958 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1321 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
959 | cctx->flags |= CC_MAPPED; |
1322 | cctx->flags |= CC_MAPPED; |
960 | } |
1323 | } |
961 | else |
1324 | else |
962 | #endif |
1325 | #endif |
963 | { |
1326 | { |
964 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1327 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
965 | New (0, cctx->sptr, coro_stacksize, long); |
1328 | New (0, cctx->sptr, cctx_stacksize, long); |
966 | |
1329 | |
967 | if (!cctx->sptr) |
1330 | if (!cctx->sptr) |
968 | { |
1331 | { |
969 | perror ("FATAL: unable to allocate stack for coroutine"); |
1332 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
970 | _exit (EXIT_FAILURE); |
1333 | _exit (EXIT_FAILURE); |
971 | } |
1334 | } |
972 | |
1335 | |
973 | stack_start = cctx->sptr; |
1336 | stack_start = cctx->sptr; |
974 | stack_size = cctx->ssize; |
1337 | stack_size = cctx->ssize; |
975 | } |
1338 | } |
976 | |
1339 | |
977 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1340 | #if CORO_USE_VALGRIND |
|
|
1341 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1342 | #endif |
|
|
1343 | |
978 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
1344 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
979 | |
1345 | |
980 | return cctx; |
1346 | return cctx; |
981 | } |
1347 | } |
982 | |
1348 | |
983 | static void |
1349 | static void |
984 | cctx_destroy (coro_cctx *cctx) |
1350 | cctx_destroy (coro_cctx *cctx) |
985 | { |
1351 | { |
986 | if (!cctx) |
1352 | if (!cctx) |
987 | return; |
1353 | return; |
988 | |
1354 | |
|
|
1355 | assert (("FATAL: tried to destroy current cctx", cctx != cctx_current));//D temporary? |
|
|
1356 | |
989 | --cctx_count; |
1357 | --cctx_count; |
|
|
1358 | coro_destroy (&cctx->cctx); |
990 | |
1359 | |
|
|
1360 | /* coro_transfer creates new, empty cctx's */ |
|
|
1361 | if (cctx->sptr) |
|
|
1362 | { |
991 | #if CORO_USE_VALGRIND |
1363 | #if CORO_USE_VALGRIND |
992 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1364 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
993 | #endif |
1365 | #endif |
994 | |
1366 | |
995 | #if HAVE_MMAP |
1367 | #if HAVE_MMAP |
996 | if (cctx->flags & CC_MAPPED) |
1368 | if (cctx->flags & CC_MAPPED) |
997 | munmap (cctx->sptr, cctx->ssize); |
1369 | munmap (cctx->sptr, cctx->ssize); |
998 | else |
1370 | else |
999 | #endif |
1371 | #endif |
1000 | Safefree (cctx->sptr); |
1372 | Safefree (cctx->sptr); |
|
|
1373 | } |
1001 | |
1374 | |
1002 | Safefree (cctx); |
1375 | Safefree (cctx); |
1003 | } |
1376 | } |
1004 | |
1377 | |
1005 | /* wether this cctx should be destructed */ |
1378 | /* wether this cctx should be destructed */ |
1006 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
1379 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1007 | |
1380 | |
1008 | static coro_cctx * |
1381 | static coro_cctx * |
1009 | cctx_get (pTHX) |
1382 | cctx_get (pTHX) |
1010 | { |
1383 | { |
1011 | while (expect_true (cctx_first)) |
1384 | while (expect_true (cctx_first)) |
… | |
… | |
1018 | return cctx; |
1391 | return cctx; |
1019 | |
1392 | |
1020 | cctx_destroy (cctx); |
1393 | cctx_destroy (cctx); |
1021 | } |
1394 | } |
1022 | |
1395 | |
1023 | return cctx_new (); |
1396 | return cctx_new_run (); |
1024 | } |
1397 | } |
1025 | |
1398 | |
1026 | static void |
1399 | static void |
1027 | cctx_put (coro_cctx *cctx) |
1400 | cctx_put (coro_cctx *cctx) |
1028 | { |
1401 | { |
|
|
1402 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1403 | |
1029 | /* free another cctx if overlimit */ |
1404 | /* free another cctx if overlimit */ |
1030 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
1405 | if (expect_false (cctx_idle >= cctx_max_idle)) |
1031 | { |
1406 | { |
1032 | coro_cctx *first = cctx_first; |
1407 | coro_cctx *first = cctx_first; |
1033 | cctx_first = first->next; |
1408 | cctx_first = first->next; |
1034 | --cctx_idle; |
1409 | --cctx_idle; |
1035 | |
1410 | |
… | |
… | |
1044 | /** coroutine switching *****************************************************/ |
1419 | /** coroutine switching *****************************************************/ |
1045 | |
1420 | |
1046 | static void |
1421 | static void |
1047 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1422 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1048 | { |
1423 | { |
|
|
1424 | /* TODO: throwing up here is considered harmful */ |
|
|
1425 | |
1049 | if (expect_true (prev != next)) |
1426 | if (expect_true (prev != next)) |
1050 | { |
1427 | { |
1051 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1428 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1052 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1429 | croak ("Coro::State::transfer called with a blocked prev Coro::State, but can only transfer from running or new states,"); |
1053 | |
1430 | |
1054 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1055 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
1056 | |
|
|
1057 | if (expect_false (next->flags & CF_DESTROYED)) |
1431 | if (expect_false (next->flags & (CF_RUNNING | CF_DESTROYED | CF_SUSPENDED))) |
1058 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1432 | croak ("Coro::State::transfer called with running, destroyed or suspended next Coro::State, but can only transfer to inactive states,"); |
1059 | |
1433 | |
1060 | if ( |
|
|
1061 | #if PERL_VERSION_ATLEAST (5,9,0) |
1434 | #if !PERL_VERSION_ATLEAST (5,10,0) |
1062 | expect_false (PL_parser) |
|
|
1063 | #else |
|
|
1064 | expect_false (PL_lex_state != LEX_NOTPARSING) |
1435 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1065 | #endif |
|
|
1066 | ) |
|
|
1067 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
1436 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1437 | #endif |
1068 | } |
1438 | } |
1069 | } |
1439 | } |
1070 | |
1440 | |
1071 | /* always use the TRANSFER macro */ |
1441 | /* always use the TRANSFER macro */ |
1072 | static void NOINLINE |
1442 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1073 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1443 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1074 | { |
1444 | { |
1075 | dSTACKLEVEL; |
1445 | dSTACKLEVEL; |
1076 | |
1446 | |
1077 | /* sometimes transfer is only called to set idle_sp */ |
1447 | /* sometimes transfer is only called to set idle_sp */ |
1078 | if (expect_false (!next)) |
1448 | if (expect_false (!prev)) |
1079 | { |
1449 | { |
1080 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1450 | cctx_current->idle_sp = STACKLEVEL; |
1081 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1451 | assert (cctx_current->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1082 | } |
1452 | } |
1083 | else if (expect_true (prev != next)) |
1453 | else if (expect_true (prev != next)) |
1084 | { |
1454 | { |
1085 | coro_cctx *prev__cctx; |
1455 | coro_cctx *cctx_prev; |
1086 | |
1456 | |
1087 | if (expect_false (prev->flags & CF_NEW)) |
1457 | if (expect_false (prev->flags & CF_NEW)) |
1088 | { |
1458 | { |
1089 | /* create a new empty context */ |
1459 | /* create a new empty/source context */ |
1090 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
1091 | prev->flags &= ~CF_NEW; |
1460 | prev->flags &= ~CF_NEW; |
1092 | prev->flags |= CF_RUNNING; |
1461 | prev->flags |= CF_RUNNING; |
1093 | } |
1462 | } |
1094 | |
1463 | |
1095 | prev->flags &= ~CF_RUNNING; |
1464 | prev->flags &= ~CF_RUNNING; |
1096 | next->flags |= CF_RUNNING; |
1465 | next->flags |= CF_RUNNING; |
1097 | |
1466 | |
1098 | LOCK; |
1467 | /* first get rid of the old state */ |
|
|
1468 | save_perl (aTHX_ prev); |
1099 | |
1469 | |
1100 | if (expect_false (next->flags & CF_NEW)) |
1470 | if (expect_false (next->flags & CF_NEW)) |
1101 | { |
1471 | { |
1102 | /* need to start coroutine */ |
1472 | /* need to start coroutine */ |
1103 | next->flags &= ~CF_NEW; |
1473 | next->flags &= ~CF_NEW; |
1104 | /* first get rid of the old state */ |
|
|
1105 | save_perl (aTHX_ prev); |
|
|
1106 | /* setup coroutine call */ |
1474 | /* setup coroutine call */ |
1107 | coro_setup (aTHX_ next); |
1475 | coro_setup (aTHX_ next); |
1108 | } |
1476 | } |
1109 | else |
1477 | else |
|
|
1478 | load_perl (aTHX_ next); |
|
|
1479 | |
|
|
1480 | /* possibly untie and reuse the cctx */ |
|
|
1481 | if (expect_true ( |
|
|
1482 | cctx_current->idle_sp == STACKLEVEL |
|
|
1483 | && !(cctx_current->flags & CC_TRACE) |
|
|
1484 | && !force_cctx |
|
|
1485 | )) |
1110 | { |
1486 | { |
1111 | /* coroutine already started */ |
1487 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1112 | save_perl (aTHX_ prev); |
1488 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == cctx_current->idle_te)); |
1113 | load_perl (aTHX_ next); |
1489 | |
|
|
1490 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get. */ |
|
|
1491 | /* without this the next cctx_get might destroy the running cctx while still in use */ |
|
|
1492 | if (expect_false (CCTX_EXPIRED (cctx_current))) |
|
|
1493 | if (expect_true (!next->cctx)) |
|
|
1494 | next->cctx = cctx_get (aTHX); |
|
|
1495 | |
|
|
1496 | cctx_put (cctx_current); |
1114 | } |
1497 | } |
|
|
1498 | else |
|
|
1499 | prev->cctx = cctx_current; |
1115 | |
1500 | |
1116 | prev__cctx = prev->cctx; |
1501 | ++next->usecount; |
1117 | |
1502 | |
1118 | /* possibly "free" the cctx */ |
1503 | cctx_prev = cctx_current; |
1119 | if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) |
1504 | cctx_current = expect_false (next->cctx) ? next->cctx : cctx_get (aTHX); |
|
|
1505 | |
|
|
1506 | next->cctx = 0; |
|
|
1507 | |
|
|
1508 | if (expect_false (cctx_prev != cctx_current)) |
1120 | { |
1509 | { |
1121 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1510 | cctx_prev->top_env = PL_top_env; |
1122 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1511 | PL_top_env = cctx_current->top_env; |
1123 | |
1512 | coro_transfer (&cctx_prev->cctx, &cctx_current->cctx); |
1124 | prev->cctx = 0; |
|
|
1125 | |
|
|
1126 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1127 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1128 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1129 | next->cctx = cctx_get (aTHX); |
|
|
1130 | |
|
|
1131 | cctx_put (prev__cctx); |
|
|
1132 | } |
1513 | } |
1133 | |
1514 | |
1134 | ++next->usecount; |
1515 | transfer_tail (aTHX); |
1135 | |
|
|
1136 | if (expect_true (!next->cctx)) |
|
|
1137 | next->cctx = cctx_get (aTHX); |
|
|
1138 | |
|
|
1139 | if (expect_false (prev__cctx != next->cctx)) |
|
|
1140 | { |
|
|
1141 | prev__cctx->top_env = PL_top_env; |
|
|
1142 | PL_top_env = next->cctx->top_env; |
|
|
1143 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
|
|
1144 | } |
|
|
1145 | |
|
|
1146 | free_coro_mortal (aTHX); |
|
|
1147 | UNLOCK; |
|
|
1148 | |
|
|
1149 | if (expect_false (prev->throw || next->throw)) |
|
|
1150 | { |
|
|
1151 | struct coro *coro = SvSTATE (coro_current); |
|
|
1152 | |
|
|
1153 | if (coro->throw) |
|
|
1154 | { |
|
|
1155 | SV *exception = coro->throw; |
|
|
1156 | coro->throw = 0; |
|
|
1157 | sv_setsv (ERRSV, exception); |
|
|
1158 | croak (0); |
|
|
1159 | } |
|
|
1160 | } |
|
|
1161 | } |
1516 | } |
1162 | } |
1517 | } |
1163 | |
1518 | |
1164 | struct transfer_args |
|
|
1165 | { |
|
|
1166 | struct coro *prev, *next; |
|
|
1167 | }; |
|
|
1168 | |
|
|
1169 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1519 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1170 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1520 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1171 | |
1521 | |
1172 | /** high level stuff ********************************************************/ |
1522 | /** high level stuff ********************************************************/ |
1173 | |
1523 | |
1174 | static int |
1524 | static int |
1175 | coro_state_destroy (pTHX_ struct coro *coro) |
1525 | coro_state_destroy (pTHX_ struct coro *coro) |
1176 | { |
1526 | { |
1177 | if (coro->flags & CF_DESTROYED) |
1527 | if (coro->flags & CF_DESTROYED) |
1178 | return 0; |
1528 | return 0; |
|
|
1529 | |
|
|
1530 | if (coro->on_destroy && !PL_dirty) |
|
|
1531 | coro->on_destroy (aTHX_ coro); |
1179 | |
1532 | |
1180 | coro->flags |= CF_DESTROYED; |
1533 | coro->flags |= CF_DESTROYED; |
1181 | |
1534 | |
1182 | if (coro->flags & CF_READY) |
1535 | if (coro->flags & CF_READY) |
1183 | { |
1536 | { |
1184 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1537 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1185 | /* alternative: look through all ready queues and remove the coro */ |
1538 | /* alternative: look through all ready queues and remove the coro */ |
1186 | LOCK; |
|
|
1187 | --coro_nready; |
1539 | --coro_nready; |
1188 | UNLOCK; |
|
|
1189 | } |
1540 | } |
1190 | else |
1541 | else |
1191 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1542 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1192 | |
1543 | |
1193 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1544 | if (coro->mainstack |
1194 | { |
1545 | && coro->mainstack != main_mainstack |
1195 | struct coro temp; |
1546 | && coro->slot |
1196 | |
1547 | && !PL_dirty) |
1197 | if (coro->flags & CF_RUNNING) |
|
|
1198 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1199 | |
|
|
1200 | save_perl (aTHX_ &temp); |
|
|
1201 | load_perl (aTHX_ coro); |
|
|
1202 | |
|
|
1203 | coro_destroy (aTHX_ coro); |
1548 | coro_destruct_perl (aTHX_ coro); |
1204 | |
|
|
1205 | load_perl (aTHX_ &temp); |
|
|
1206 | |
|
|
1207 | coro->slot = 0; |
|
|
1208 | } |
|
|
1209 | |
1549 | |
1210 | cctx_destroy (coro->cctx); |
1550 | cctx_destroy (coro->cctx); |
|
|
1551 | SvREFCNT_dec (coro->startcv); |
1211 | SvREFCNT_dec (coro->args); |
1552 | SvREFCNT_dec (coro->args); |
|
|
1553 | SvREFCNT_dec (CORO_THROW); |
1212 | |
1554 | |
1213 | if (coro->next) coro->next->prev = coro->prev; |
1555 | if (coro->next) coro->next->prev = coro->prev; |
1214 | if (coro->prev) coro->prev->next = coro->next; |
1556 | if (coro->prev) coro->prev->next = coro->next; |
1215 | if (coro == coro_first) coro_first = coro->next; |
1557 | if (coro == coro_first) coro_first = coro->next; |
1216 | |
1558 | |
… | |
… | |
1254 | # define MGf_DUP 0 |
1596 | # define MGf_DUP 0 |
1255 | #endif |
1597 | #endif |
1256 | }; |
1598 | }; |
1257 | |
1599 | |
1258 | static void |
1600 | static void |
1259 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1601 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1260 | { |
1602 | { |
1261 | ta->prev = SvSTATE (prev_sv); |
1603 | ta->prev = SvSTATE (prev_sv); |
1262 | ta->next = SvSTATE (next_sv); |
1604 | ta->next = SvSTATE (next_sv); |
1263 | TRANSFER_CHECK (*ta); |
1605 | TRANSFER_CHECK (*ta); |
1264 | } |
1606 | } |
1265 | |
1607 | |
1266 | static void |
1608 | static void |
1267 | api_transfer (SV *prev_sv, SV *next_sv) |
1609 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1268 | { |
1610 | { |
1269 | dTHX; |
|
|
1270 | struct transfer_args ta; |
1611 | struct coro_transfer_args ta; |
1271 | |
1612 | |
1272 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1613 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1273 | TRANSFER (ta); |
1614 | TRANSFER (ta, 1); |
|
|
1615 | } |
|
|
1616 | |
|
|
1617 | /*****************************************************************************/ |
|
|
1618 | /* gensub: simple closure generation utility */ |
|
|
1619 | |
|
|
1620 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1621 | |
|
|
1622 | /* create a closure from XS, returns a code reference */ |
|
|
1623 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1624 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1625 | static SV * |
|
|
1626 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1627 | { |
|
|
1628 | CV *cv = (CV *)newSV (0); |
|
|
1629 | |
|
|
1630 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1631 | |
|
|
1632 | CvANON_on (cv); |
|
|
1633 | CvISXSUB_on (cv); |
|
|
1634 | CvXSUB (cv) = xsub; |
|
|
1635 | GENSUB_ARG = arg; |
|
|
1636 | |
|
|
1637 | return newRV_noinc ((SV *)cv); |
1274 | } |
1638 | } |
1275 | |
1639 | |
1276 | /** Coro ********************************************************************/ |
1640 | /** Coro ********************************************************************/ |
1277 | |
1641 | |
1278 | static void |
1642 | INLINE void |
1279 | coro_enq (pTHX_ SV *coro_sv) |
1643 | coro_enq (pTHX_ struct coro *coro) |
1280 | { |
1644 | { |
1281 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1645 | struct coro **ready = coro_ready [coro->prio - CORO_PRIO_MIN]; |
1282 | } |
|
|
1283 | |
1646 | |
1284 | static SV * |
1647 | SvREFCNT_inc_NN (coro->hv); |
1285 | coro_deq (pTHX_ int min_prio) |
|
|
1286 | { |
|
|
1287 | int prio = PRIO_MAX - PRIO_MIN; |
|
|
1288 | |
1648 | |
1289 | min_prio -= PRIO_MIN; |
1649 | coro->next_ready = 0; |
1290 | if (min_prio < 0) |
1650 | *(ready [0] ? &ready [1]->next_ready : &ready [0]) = coro; |
1291 | min_prio = 0; |
1651 | ready [1] = coro; |
|
|
1652 | } |
1292 | |
1653 | |
|
|
1654 | INLINE struct coro * |
|
|
1655 | coro_deq (pTHX) |
|
|
1656 | { |
|
|
1657 | int prio; |
|
|
1658 | |
1293 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1659 | for (prio = CORO_PRIO_MAX - CORO_PRIO_MIN + 1; --prio >= 0; ) |
1294 | if (AvFILLp (coro_ready [prio]) >= 0) |
1660 | { |
1295 | return av_shift (coro_ready [prio]); |
1661 | struct coro **ready = coro_ready [prio]; |
|
|
1662 | |
|
|
1663 | if (ready [0]) |
|
|
1664 | { |
|
|
1665 | struct coro *coro = ready [0]; |
|
|
1666 | ready [0] = coro->next_ready; |
|
|
1667 | return coro; |
|
|
1668 | } |
|
|
1669 | } |
1296 | |
1670 | |
1297 | return 0; |
1671 | return 0; |
1298 | } |
1672 | } |
1299 | |
1673 | |
1300 | static int |
1674 | static int |
1301 | api_ready (SV *coro_sv) |
1675 | api_ready (pTHX_ SV *coro_sv) |
1302 | { |
1676 | { |
1303 | dTHX; |
|
|
1304 | struct coro *coro; |
1677 | struct coro *coro; |
1305 | |
1678 | SV *sv_hook; |
1306 | if (SvROK (coro_sv)) |
1679 | void (*xs_hook)(void); |
1307 | coro_sv = SvRV (coro_sv); |
|
|
1308 | |
1680 | |
1309 | coro = SvSTATE (coro_sv); |
1681 | coro = SvSTATE (coro_sv); |
1310 | |
1682 | |
1311 | if (coro->flags & CF_READY) |
1683 | if (coro->flags & CF_READY) |
1312 | return 0; |
1684 | return 0; |
1313 | |
1685 | |
1314 | coro->flags |= CF_READY; |
1686 | coro->flags |= CF_READY; |
1315 | |
1687 | |
1316 | LOCK; |
1688 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1317 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1689 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1690 | |
|
|
1691 | coro_enq (aTHX_ coro); |
1318 | ++coro_nready; |
1692 | ++coro_nready; |
1319 | UNLOCK; |
1693 | |
|
|
1694 | if (sv_hook) |
|
|
1695 | { |
|
|
1696 | dSP; |
|
|
1697 | |
|
|
1698 | ENTER; |
|
|
1699 | SAVETMPS; |
|
|
1700 | |
|
|
1701 | PUSHMARK (SP); |
|
|
1702 | PUTBACK; |
|
|
1703 | call_sv (sv_hook, G_VOID | G_DISCARD); |
|
|
1704 | |
|
|
1705 | FREETMPS; |
|
|
1706 | LEAVE; |
|
|
1707 | } |
|
|
1708 | |
|
|
1709 | if (xs_hook) |
|
|
1710 | xs_hook (); |
1320 | |
1711 | |
1321 | return 1; |
1712 | return 1; |
1322 | } |
1713 | } |
1323 | |
1714 | |
1324 | static int |
1715 | static int |
1325 | api_is_ready (SV *coro_sv) |
1716 | api_is_ready (pTHX_ SV *coro_sv) |
1326 | { |
1717 | { |
1327 | dTHX; |
|
|
1328 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1718 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1329 | } |
1719 | } |
1330 | |
1720 | |
1331 | static void |
1721 | /* expects to own a reference to next->hv */ |
|
|
1722 | INLINE void |
1332 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1723 | prepare_schedule_to (pTHX_ struct coro_transfer_args *ta, struct coro *next) |
1333 | { |
1724 | { |
1334 | SV *prev_sv, *next_sv; |
|
|
1335 | |
|
|
1336 | for (;;) |
|
|
1337 | { |
|
|
1338 | LOCK; |
|
|
1339 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1340 | |
|
|
1341 | /* nothing to schedule: call the idle handler */ |
|
|
1342 | if (expect_false (!next_sv)) |
|
|
1343 | { |
|
|
1344 | dSP; |
|
|
1345 | UNLOCK; |
|
|
1346 | |
|
|
1347 | ENTER; |
|
|
1348 | SAVETMPS; |
|
|
1349 | |
|
|
1350 | PUSHMARK (SP); |
|
|
1351 | PUTBACK; |
|
|
1352 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1353 | |
|
|
1354 | FREETMPS; |
|
|
1355 | LEAVE; |
|
|
1356 | continue; |
|
|
1357 | } |
|
|
1358 | |
|
|
1359 | ta->next = SvSTATE (next_sv); |
|
|
1360 | |
|
|
1361 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1362 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
|
|
1363 | { |
|
|
1364 | UNLOCK; |
|
|
1365 | SvREFCNT_dec (next_sv); |
|
|
1366 | /* coro_nready is already taken care of by destroy */ |
|
|
1367 | continue; |
|
|
1368 | } |
|
|
1369 | |
|
|
1370 | --coro_nready; |
|
|
1371 | UNLOCK; |
|
|
1372 | break; |
|
|
1373 | } |
|
|
1374 | |
|
|
1375 | /* free this only after the transfer */ |
|
|
1376 | prev_sv = SvRV (coro_current); |
1725 | SV *prev_sv = SvRV (coro_current); |
|
|
1726 | |
1377 | ta->prev = SvSTATE (prev_sv); |
1727 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1728 | ta->next = next; |
|
|
1729 | |
1378 | TRANSFER_CHECK (*ta); |
1730 | TRANSFER_CHECK (*ta); |
1379 | assert (ta->next->flags & CF_READY); |
1731 | |
1380 | ta->next->flags &= ~CF_READY; |
|
|
1381 | SvRV_set (coro_current, next_sv); |
1732 | SvRV_set (coro_current, (SV *)next->hv); |
1382 | |
1733 | |
1383 | LOCK; |
|
|
1384 | free_coro_mortal (aTHX); |
1734 | free_coro_mortal (aTHX); |
1385 | coro_mortal = prev_sv; |
1735 | coro_mortal = prev_sv; |
1386 | UNLOCK; |
|
|
1387 | } |
1736 | } |
1388 | |
1737 | |
1389 | static void |
1738 | static void |
|
|
1739 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
|
|
1740 | { |
|
|
1741 | for (;;) |
|
|
1742 | { |
|
|
1743 | struct coro *next = coro_deq (aTHX); |
|
|
1744 | |
|
|
1745 | if (expect_true (next)) |
|
|
1746 | { |
|
|
1747 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1748 | if (expect_false (next->flags & (CF_DESTROYED | CF_SUSPENDED))) |
|
|
1749 | SvREFCNT_dec (next->hv); /* coro_nready has already been taken care of by destroy */ |
|
|
1750 | else |
|
|
1751 | { |
|
|
1752 | next->flags &= ~CF_READY; |
|
|
1753 | --coro_nready; |
|
|
1754 | |
|
|
1755 | prepare_schedule_to (aTHX_ ta, next); |
|
|
1756 | break; |
|
|
1757 | } |
|
|
1758 | } |
|
|
1759 | else |
|
|
1760 | { |
|
|
1761 | /* nothing to schedule: call the idle handler */ |
|
|
1762 | if (SvROK (sv_idle) |
|
|
1763 | && SvOBJECT (SvRV (sv_idle))) |
|
|
1764 | { |
|
|
1765 | ++coro_nready; /* hack so that api_ready doesn't invoke ready hook */ |
|
|
1766 | api_ready (aTHX_ SvRV (sv_idle)); |
|
|
1767 | --coro_nready; |
|
|
1768 | } |
|
|
1769 | else |
|
|
1770 | { |
|
|
1771 | dSP; |
|
|
1772 | |
|
|
1773 | ENTER; |
|
|
1774 | SAVETMPS; |
|
|
1775 | |
|
|
1776 | PUSHMARK (SP); |
|
|
1777 | PUTBACK; |
|
|
1778 | call_sv (sv_idle, G_VOID | G_DISCARD); |
|
|
1779 | |
|
|
1780 | FREETMPS; |
|
|
1781 | LEAVE; |
|
|
1782 | } |
|
|
1783 | } |
|
|
1784 | } |
|
|
1785 | } |
|
|
1786 | |
|
|
1787 | INLINE void |
1390 | prepare_cede (pTHX_ struct transfer_args *ta) |
1788 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1391 | { |
1789 | { |
1392 | api_ready (coro_current); |
1790 | api_ready (aTHX_ coro_current); |
1393 | prepare_schedule (aTHX_ ta); |
1791 | prepare_schedule (aTHX_ ta); |
1394 | } |
1792 | } |
1395 | |
1793 | |
|
|
1794 | INLINE void |
|
|
1795 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1796 | { |
|
|
1797 | SV *prev = SvRV (coro_current); |
|
|
1798 | |
|
|
1799 | if (coro_nready) |
|
|
1800 | { |
|
|
1801 | prepare_schedule (aTHX_ ta); |
|
|
1802 | api_ready (aTHX_ prev); |
|
|
1803 | } |
|
|
1804 | else |
|
|
1805 | prepare_nop (aTHX_ ta); |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | static void |
|
|
1809 | api_schedule (pTHX) |
|
|
1810 | { |
|
|
1811 | struct coro_transfer_args ta; |
|
|
1812 | |
|
|
1813 | prepare_schedule (aTHX_ &ta); |
|
|
1814 | TRANSFER (ta, 1); |
|
|
1815 | } |
|
|
1816 | |
|
|
1817 | static void |
|
|
1818 | api_schedule_to (pTHX_ SV *coro_sv) |
|
|
1819 | { |
|
|
1820 | struct coro_transfer_args ta; |
|
|
1821 | struct coro *next = SvSTATE (coro_sv); |
|
|
1822 | |
|
|
1823 | SvREFCNT_inc_NN (coro_sv); |
|
|
1824 | prepare_schedule_to (aTHX_ &ta, next); |
|
|
1825 | } |
|
|
1826 | |
1396 | static int |
1827 | static int |
1397 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1828 | api_cede (pTHX) |
1398 | { |
1829 | { |
1399 | if (coro_nready) |
1830 | struct coro_transfer_args ta; |
1400 | { |
1831 | |
1401 | SV *prev = SvRV (coro_current); |
|
|
1402 | prepare_schedule (aTHX_ ta); |
1832 | prepare_cede (aTHX_ &ta); |
1403 | api_ready (prev); |
1833 | |
|
|
1834 | if (expect_true (ta.prev != ta.next)) |
|
|
1835 | { |
|
|
1836 | TRANSFER (ta, 1); |
1404 | return 1; |
1837 | return 1; |
1405 | } |
1838 | } |
1406 | else |
1839 | else |
1407 | return 0; |
1840 | return 0; |
1408 | } |
1841 | } |
1409 | |
1842 | |
1410 | static void |
|
|
1411 | api_schedule (void) |
|
|
1412 | { |
|
|
1413 | dTHX; |
|
|
1414 | struct transfer_args ta; |
|
|
1415 | |
|
|
1416 | prepare_schedule (aTHX_ &ta); |
|
|
1417 | TRANSFER (ta); |
|
|
1418 | } |
|
|
1419 | |
|
|
1420 | static int |
1843 | static int |
1421 | api_cede (void) |
1844 | api_cede_notself (pTHX) |
1422 | { |
1845 | { |
1423 | dTHX; |
1846 | if (coro_nready) |
|
|
1847 | { |
1424 | struct transfer_args ta; |
1848 | struct coro_transfer_args ta; |
1425 | |
1849 | |
1426 | prepare_cede (aTHX_ &ta); |
1850 | prepare_cede_notself (aTHX_ &ta); |
1427 | |
|
|
1428 | if (expect_true (ta.prev != ta.next)) |
|
|
1429 | { |
|
|
1430 | TRANSFER (ta); |
1851 | TRANSFER (ta, 1); |
1431 | return 1; |
1852 | return 1; |
1432 | } |
1853 | } |
1433 | else |
1854 | else |
1434 | return 0; |
1855 | return 0; |
1435 | } |
1856 | } |
1436 | |
1857 | |
1437 | static int |
1858 | static void |
1438 | api_cede_notself (void) |
|
|
1439 | { |
|
|
1440 | dTHX; |
|
|
1441 | struct transfer_args ta; |
|
|
1442 | |
|
|
1443 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1444 | { |
|
|
1445 | TRANSFER (ta); |
|
|
1446 | return 1; |
|
|
1447 | } |
|
|
1448 | else |
|
|
1449 | return 0; |
|
|
1450 | } |
|
|
1451 | |
|
|
1452 | static void |
|
|
1453 | api_trace (SV *coro_sv, int flags) |
1859 | api_trace (pTHX_ SV *coro_sv, int flags) |
1454 | { |
1860 | { |
1455 | dTHX; |
|
|
1456 | struct coro *coro = SvSTATE (coro_sv); |
1861 | struct coro *coro = SvSTATE (coro_sv); |
1457 | |
1862 | |
|
|
1863 | if (coro->flags & CF_RUNNING) |
|
|
1864 | croak ("cannot enable tracing on a running coroutine, caught"); |
|
|
1865 | |
1458 | if (flags & CC_TRACE) |
1866 | if (flags & CC_TRACE) |
1459 | { |
1867 | { |
1460 | if (!coro->cctx) |
1868 | if (!coro->cctx) |
1461 | coro->cctx = cctx_new (); |
1869 | coro->cctx = cctx_new_run (); |
1462 | else if (!(coro->cctx->flags & CC_TRACE)) |
1870 | else if (!(coro->cctx->flags & CC_TRACE)) |
1463 | croak ("cannot enable tracing on coroutine with custom stack"); |
1871 | croak ("cannot enable tracing on coroutine with custom stack, caught"); |
1464 | |
1872 | |
1465 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1873 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1466 | } |
1874 | } |
1467 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1875 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1468 | { |
1876 | { |
… | |
… | |
1473 | else |
1881 | else |
1474 | coro->slot->runops = RUNOPS_DEFAULT; |
1882 | coro->slot->runops = RUNOPS_DEFAULT; |
1475 | } |
1883 | } |
1476 | } |
1884 | } |
1477 | |
1885 | |
|
|
1886 | static void |
|
|
1887 | coro_call_on_destroy (pTHX_ struct coro *coro) |
|
|
1888 | { |
|
|
1889 | SV **on_destroyp = hv_fetch (coro->hv, "_on_destroy", sizeof ("_on_destroy") - 1, 0); |
|
|
1890 | SV **statusp = hv_fetch (coro->hv, "_status", sizeof ("_status") - 1, 0); |
|
|
1891 | |
|
|
1892 | if (on_destroyp) |
|
|
1893 | { |
|
|
1894 | AV *on_destroy = (AV *)SvRV (*on_destroyp); |
|
|
1895 | |
|
|
1896 | while (AvFILLp (on_destroy) >= 0) |
|
|
1897 | { |
|
|
1898 | dSP; /* don't disturb outer sp */ |
|
|
1899 | SV *cb = av_pop (on_destroy); |
|
|
1900 | |
|
|
1901 | PUSHMARK (SP); |
|
|
1902 | |
|
|
1903 | if (statusp) |
|
|
1904 | { |
|
|
1905 | int i; |
|
|
1906 | AV *status = (AV *)SvRV (*statusp); |
|
|
1907 | EXTEND (SP, AvFILLp (status) + 1); |
|
|
1908 | |
|
|
1909 | for (i = 0; i <= AvFILLp (status); ++i) |
|
|
1910 | PUSHs (AvARRAY (status)[i]); |
|
|
1911 | } |
|
|
1912 | |
|
|
1913 | PUTBACK; |
|
|
1914 | call_sv (sv_2mortal (cb), G_VOID | G_DISCARD); |
|
|
1915 | } |
|
|
1916 | } |
|
|
1917 | } |
|
|
1918 | |
|
|
1919 | static void |
|
|
1920 | slf_init_terminate (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1921 | { |
|
|
1922 | int i; |
|
|
1923 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1924 | AV *av = newAV (); |
|
|
1925 | |
|
|
1926 | av_extend (av, items - 1); |
|
|
1927 | for (i = 0; i < items; ++i) |
|
|
1928 | av_push (av, SvREFCNT_inc_NN (arg [i])); |
|
|
1929 | |
|
|
1930 | hv_store (hv, "_status", sizeof ("_status") - 1, newRV_noinc ((SV *)av), 0); |
|
|
1931 | |
|
|
1932 | av_push (av_destroy, (SV *)newRV_inc ((SV *)hv)); /* RVinc for perl */ |
|
|
1933 | api_ready (aTHX_ sv_manager); |
|
|
1934 | |
|
|
1935 | frame->prepare = prepare_schedule; |
|
|
1936 | frame->check = slf_check_repeat; |
|
|
1937 | |
|
|
1938 | /* as a minor optimisation, we could unwind all stacks here */ |
|
|
1939 | /* but that puts extra pressure on pp_slf, and is not worth much */ |
|
|
1940 | /*coro_unwind_stacks (aTHX);*/ |
|
|
1941 | } |
|
|
1942 | |
|
|
1943 | /*****************************************************************************/ |
|
|
1944 | /* async pool handler */ |
|
|
1945 | |
|
|
1946 | static int |
|
|
1947 | slf_check_pool_handler (pTHX_ struct CoroSLF *frame) |
|
|
1948 | { |
|
|
1949 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1950 | struct coro *coro = (struct coro *)frame->data; |
|
|
1951 | |
|
|
1952 | if (!coro->invoke_cb) |
|
|
1953 | return 1; /* loop till we have invoke */ |
|
|
1954 | else |
|
|
1955 | { |
|
|
1956 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1957 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1958 | |
|
|
1959 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
1960 | |
|
|
1961 | { |
|
|
1962 | dSP; |
|
|
1963 | XPUSHs (sv_2mortal (coro->invoke_cb)); coro->invoke_cb = 0; |
|
|
1964 | PUTBACK; |
|
|
1965 | } |
|
|
1966 | |
|
|
1967 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
1968 | GvAV (PL_defgv) = coro->invoke_av; |
|
|
1969 | coro->invoke_av = 0; |
|
|
1970 | |
|
|
1971 | return 0; |
|
|
1972 | } |
|
|
1973 | } |
|
|
1974 | |
|
|
1975 | static void |
|
|
1976 | slf_init_pool_handler (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1977 | { |
|
|
1978 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1979 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
1980 | |
|
|
1981 | if (expect_true (coro->saved_deffh)) |
|
|
1982 | { |
|
|
1983 | /* subsequent iteration */ |
|
|
1984 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1985 | coro->saved_deffh = 0; |
|
|
1986 | |
|
|
1987 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
1988 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1989 | { |
|
|
1990 | coro->invoke_cb = SvREFCNT_inc_NN ((SV *)cv_coro_terminate); |
|
|
1991 | coro->invoke_av = newAV (); |
|
|
1992 | |
|
|
1993 | frame->prepare = prepare_nop; |
|
|
1994 | } |
|
|
1995 | else |
|
|
1996 | { |
|
|
1997 | av_clear (GvAV (PL_defgv)); |
|
|
1998 | hv_store (hv, "desc", sizeof ("desc") - 1, SvREFCNT_inc_NN (sv_async_pool_idle), 0); |
|
|
1999 | |
|
|
2000 | coro->prio = 0; |
|
|
2001 | |
|
|
2002 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2003 | api_trace (aTHX_ coro_current, 0); |
|
|
2004 | |
|
|
2005 | frame->prepare = prepare_schedule; |
|
|
2006 | av_push (av_async_pool, SvREFCNT_inc (hv)); |
|
|
2007 | } |
|
|
2008 | } |
|
|
2009 | else |
|
|
2010 | { |
|
|
2011 | /* first iteration, simply fall through */ |
|
|
2012 | frame->prepare = prepare_nop; |
|
|
2013 | } |
|
|
2014 | |
|
|
2015 | frame->check = slf_check_pool_handler; |
|
|
2016 | frame->data = (void *)coro; |
|
|
2017 | } |
|
|
2018 | |
|
|
2019 | /*****************************************************************************/ |
|
|
2020 | /* rouse callback */ |
|
|
2021 | |
|
|
2022 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
2023 | |
|
|
2024 | static void |
|
|
2025 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
2026 | { |
|
|
2027 | dXSARGS; |
|
|
2028 | SV *data = (SV *)GENSUB_ARG; |
|
|
2029 | |
|
|
2030 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2031 | { |
|
|
2032 | /* first call, set args */ |
|
|
2033 | SV *coro = SvRV (data); |
|
|
2034 | AV *av = newAV (); |
|
|
2035 | |
|
|
2036 | SvRV_set (data, (SV *)av); |
|
|
2037 | |
|
|
2038 | /* better take a full copy of the arguments */ |
|
|
2039 | while (items--) |
|
|
2040 | av_store (av, items, newSVsv (ST (items))); |
|
|
2041 | |
|
|
2042 | api_ready (aTHX_ coro); |
|
|
2043 | SvREFCNT_dec (coro); |
|
|
2044 | } |
|
|
2045 | |
|
|
2046 | XSRETURN_EMPTY; |
|
|
2047 | } |
|
|
2048 | |
|
|
2049 | static int |
|
|
2050 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
2051 | { |
|
|
2052 | SV *data = (SV *)frame->data; |
|
|
2053 | |
|
|
2054 | if (CORO_THROW) |
|
|
2055 | return 0; |
|
|
2056 | |
|
|
2057 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
2058 | return 1; |
|
|
2059 | |
|
|
2060 | /* now push all results on the stack */ |
|
|
2061 | { |
|
|
2062 | dSP; |
|
|
2063 | AV *av = (AV *)SvRV (data); |
|
|
2064 | int i; |
|
|
2065 | |
|
|
2066 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
2067 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
2068 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
2069 | |
|
|
2070 | /* we have stolen the elements, so set length to zero and free */ |
|
|
2071 | AvFILLp (av) = -1; |
|
|
2072 | av_undef (av); |
|
|
2073 | |
|
|
2074 | PUTBACK; |
|
|
2075 | } |
|
|
2076 | |
|
|
2077 | return 0; |
|
|
2078 | } |
|
|
2079 | |
|
|
2080 | static void |
|
|
2081 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2082 | { |
|
|
2083 | SV *cb; |
|
|
2084 | |
|
|
2085 | if (items) |
|
|
2086 | cb = arg [0]; |
|
|
2087 | else |
|
|
2088 | { |
|
|
2089 | struct coro *coro = SvSTATE_current; |
|
|
2090 | |
|
|
2091 | if (!coro->rouse_cb) |
|
|
2092 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
2093 | |
|
|
2094 | cb = sv_2mortal (coro->rouse_cb); |
|
|
2095 | coro->rouse_cb = 0; |
|
|
2096 | } |
|
|
2097 | |
|
|
2098 | if (!SvROK (cb) |
|
|
2099 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
2100 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
2101 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
2102 | |
|
|
2103 | { |
|
|
2104 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
2105 | SV *data = (SV *)GENSUB_ARG; |
|
|
2106 | |
|
|
2107 | frame->data = (void *)data; |
|
|
2108 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
2109 | frame->check = slf_check_rouse_wait; |
|
|
2110 | } |
|
|
2111 | } |
|
|
2112 | |
|
|
2113 | static SV * |
|
|
2114 | coro_new_rouse_cb (pTHX) |
|
|
2115 | { |
|
|
2116 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2117 | struct coro *coro = SvSTATE_hv (hv); |
|
|
2118 | SV *data = newRV_inc ((SV *)hv); |
|
|
2119 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
2120 | |
|
|
2121 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
2122 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
2123 | |
|
|
2124 | SvREFCNT_dec (coro->rouse_cb); |
|
|
2125 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
2126 | |
|
|
2127 | return cb; |
|
|
2128 | } |
|
|
2129 | |
|
|
2130 | /*****************************************************************************/ |
|
|
2131 | /* schedule-like-function opcode (SLF) */ |
|
|
2132 | |
|
|
2133 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
2134 | static const CV *slf_cv; |
|
|
2135 | static SV **slf_argv; |
|
|
2136 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
2137 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
2138 | |
|
|
2139 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
2140 | /* recreate the stack frame as perl will on following calls */ |
|
|
2141 | /* since entersub cleared the stack */ |
|
|
2142 | static OP * |
|
|
2143 | pp_restore (pTHX) |
|
|
2144 | { |
|
|
2145 | int i; |
|
|
2146 | SV **SP = PL_stack_base + slf_ax; |
|
|
2147 | |
|
|
2148 | PUSHMARK (SP); |
|
|
2149 | |
|
|
2150 | EXTEND (SP, slf_argc + 1); |
|
|
2151 | |
|
|
2152 | for (i = 0; i < slf_argc; ++i) |
|
|
2153 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
2154 | |
|
|
2155 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
2156 | |
|
|
2157 | RETURNOP (slf_restore.op_first); |
|
|
2158 | } |
|
|
2159 | |
|
|
2160 | static void |
|
|
2161 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
2162 | { |
|
|
2163 | SV **arg = (SV **)slf_frame.data; |
|
|
2164 | |
|
|
2165 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
2166 | } |
|
|
2167 | |
|
|
2168 | static void |
|
|
2169 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2170 | { |
|
|
2171 | if (items != 2) |
|
|
2172 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
2173 | |
|
|
2174 | frame->prepare = slf_prepare_transfer; |
|
|
2175 | frame->check = slf_check_nop; |
|
|
2176 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
2177 | } |
|
|
2178 | |
|
|
2179 | static void |
|
|
2180 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2181 | { |
|
|
2182 | frame->prepare = prepare_schedule; |
|
|
2183 | frame->check = slf_check_nop; |
|
|
2184 | } |
|
|
2185 | |
|
|
2186 | static void |
|
|
2187 | slf_prepare_schedule_to (pTHX_ struct coro_transfer_args *ta) |
|
|
2188 | { |
|
|
2189 | struct coro *next = (struct coro *)slf_frame.data; |
|
|
2190 | |
|
|
2191 | SvREFCNT_inc_NN (next->hv); |
|
|
2192 | prepare_schedule_to (aTHX_ ta, next); |
|
|
2193 | } |
|
|
2194 | |
|
|
2195 | static void |
|
|
2196 | slf_init_schedule_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2197 | { |
|
|
2198 | if (!items) |
|
|
2199 | croak ("Coro::schedule_to expects a coroutine argument, caught"); |
|
|
2200 | |
|
|
2201 | frame->data = (void *)SvSTATE (arg [0]); |
|
|
2202 | frame->prepare = slf_prepare_schedule_to; |
|
|
2203 | frame->check = slf_check_nop; |
|
|
2204 | } |
|
|
2205 | |
|
|
2206 | static void |
|
|
2207 | slf_init_cede_to (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2208 | { |
|
|
2209 | api_ready (aTHX_ SvRV (coro_current)); |
|
|
2210 | |
|
|
2211 | slf_init_schedule_to (aTHX_ frame, cv, arg, items); |
|
|
2212 | } |
|
|
2213 | |
|
|
2214 | static void |
|
|
2215 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2216 | { |
|
|
2217 | frame->prepare = prepare_cede; |
|
|
2218 | frame->check = slf_check_nop; |
|
|
2219 | } |
|
|
2220 | |
|
|
2221 | static void |
|
|
2222 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2223 | { |
|
|
2224 | frame->prepare = prepare_cede_notself; |
|
|
2225 | frame->check = slf_check_nop; |
|
|
2226 | } |
|
|
2227 | |
|
|
2228 | /* |
|
|
2229 | * these not obviously related functions are all rolled into one |
|
|
2230 | * function to increase chances that they all will call transfer with the same |
|
|
2231 | * stack offset |
|
|
2232 | * SLF stands for "schedule-like-function". |
|
|
2233 | */ |
|
|
2234 | static OP * |
|
|
2235 | pp_slf (pTHX) |
|
|
2236 | { |
|
|
2237 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
2238 | |
|
|
2239 | /* set up the slf frame, unless it has already been set-up */ |
|
|
2240 | /* the latter happens when a new coro has been started */ |
|
|
2241 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
2242 | if (expect_true (!slf_frame.prepare)) |
|
|
2243 | { |
|
|
2244 | /* first iteration */ |
|
|
2245 | dSP; |
|
|
2246 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
2247 | int items = SP - arg; /* args without function object */ |
|
|
2248 | SV *gv = *sp; |
|
|
2249 | |
|
|
2250 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
2251 | /* for us, divert to the real entersub */ |
|
|
2252 | if (SvTYPE (gv) != SVt_PVGV |
|
|
2253 | || !GvCV (gv) |
|
|
2254 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
2255 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
2256 | |
|
|
2257 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
2258 | { |
|
|
2259 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
2260 | AV *av = GvAV (PL_defgv); |
|
|
2261 | arg = AvARRAY (av); |
|
|
2262 | items = AvFILLp (av) + 1; |
|
|
2263 | } |
|
|
2264 | |
|
|
2265 | /* now call the init function, which needs to set up slf_frame */ |
|
|
2266 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
2267 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
2268 | |
|
|
2269 | /* pop args */ |
|
|
2270 | SP = PL_stack_base + POPMARK; |
|
|
2271 | |
|
|
2272 | PUTBACK; |
|
|
2273 | } |
|
|
2274 | |
|
|
2275 | /* now that we have a slf_frame, interpret it! */ |
|
|
2276 | /* we use a callback system not to make the code needlessly */ |
|
|
2277 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
2278 | |
|
|
2279 | do |
|
|
2280 | { |
|
|
2281 | struct coro_transfer_args ta; |
|
|
2282 | |
|
|
2283 | slf_frame.prepare (aTHX_ &ta); |
|
|
2284 | TRANSFER (ta, 0); |
|
|
2285 | |
|
|
2286 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
2287 | } |
|
|
2288 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
2289 | |
|
|
2290 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
2291 | |
|
|
2292 | /* exception handling */ |
|
|
2293 | if (expect_false (CORO_THROW)) |
|
|
2294 | { |
|
|
2295 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
2296 | |
|
|
2297 | CORO_THROW = 0; |
|
|
2298 | sv_setsv (ERRSV, exception); |
|
|
2299 | croak (0); |
|
|
2300 | } |
|
|
2301 | |
|
|
2302 | /* return value handling - mostly like entersub */ |
|
|
2303 | /* make sure we put something on the stack in scalar context */ |
|
|
2304 | if (GIMME_V == G_SCALAR) |
|
|
2305 | { |
|
|
2306 | dSP; |
|
|
2307 | SV **bot = PL_stack_base + checkmark; |
|
|
2308 | |
|
|
2309 | if (sp == bot) /* too few, push undef */ |
|
|
2310 | bot [1] = &PL_sv_undef; |
|
|
2311 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2312 | bot [1] = *sp; |
|
|
2313 | |
|
|
2314 | SP = bot + 1; |
|
|
2315 | |
|
|
2316 | PUTBACK; |
|
|
2317 | } |
|
|
2318 | |
|
|
2319 | return NORMAL; |
|
|
2320 | } |
|
|
2321 | |
|
|
2322 | static void |
|
|
2323 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2324 | { |
|
|
2325 | int i; |
|
|
2326 | SV **arg = PL_stack_base + ax; |
|
|
2327 | int items = PL_stack_sp - arg + 1; |
|
|
2328 | |
|
|
2329 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2330 | |
|
|
2331 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2332 | && PL_op->op_ppaddr != pp_slf) |
|
|
2333 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2334 | |
|
|
2335 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2336 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2337 | slf_cv = cv; |
|
|
2338 | |
|
|
2339 | /* we patch the op, and then re-run the whole call */ |
|
|
2340 | /* we have to put the same argument on the stack for this to work */ |
|
|
2341 | /* and this will be done by pp_restore */ |
|
|
2342 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2343 | slf_restore.op_type = OP_CUSTOM; |
|
|
2344 | slf_restore.op_ppaddr = pp_restore; |
|
|
2345 | slf_restore.op_first = PL_op; |
|
|
2346 | |
|
|
2347 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2348 | |
|
|
2349 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2350 | { |
|
|
2351 | if (items > slf_arga) |
|
|
2352 | { |
|
|
2353 | slf_arga = items; |
|
|
2354 | free (slf_argv); |
|
|
2355 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2356 | } |
|
|
2357 | |
|
|
2358 | slf_argc = items; |
|
|
2359 | |
|
|
2360 | for (i = 0; i < items; ++i) |
|
|
2361 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2362 | } |
|
|
2363 | else |
|
|
2364 | slf_argc = 0; |
|
|
2365 | |
|
|
2366 | PL_op->op_ppaddr = pp_slf; |
|
|
2367 | /*PL_op->op_type = OP_CUSTOM; /* we do behave like entersub still */ |
|
|
2368 | |
|
|
2369 | PL_op = (OP *)&slf_restore; |
|
|
2370 | } |
|
|
2371 | |
|
|
2372 | /*****************************************************************************/ |
|
|
2373 | /* dynamic wind */ |
|
|
2374 | |
|
|
2375 | static void |
|
|
2376 | on_enterleave_call (pTHX_ SV *cb) |
|
|
2377 | { |
|
|
2378 | dSP; |
|
|
2379 | |
|
|
2380 | PUSHSTACK; |
|
|
2381 | |
|
|
2382 | PUSHMARK (SP); |
|
|
2383 | PUTBACK; |
|
|
2384 | call_sv (cb, G_VOID | G_DISCARD); |
|
|
2385 | SPAGAIN; |
|
|
2386 | |
|
|
2387 | POPSTACK; |
|
|
2388 | } |
|
|
2389 | |
|
|
2390 | static SV * |
|
|
2391 | coro_avp_pop_and_free (pTHX_ AV **avp) |
|
|
2392 | { |
|
|
2393 | AV *av = *avp; |
|
|
2394 | SV *res = av_pop (av); |
|
|
2395 | |
|
|
2396 | if (AvFILLp (av) < 0) |
|
|
2397 | { |
|
|
2398 | *avp = 0; |
|
|
2399 | SvREFCNT_dec (av); |
|
|
2400 | } |
|
|
2401 | |
|
|
2402 | return res; |
|
|
2403 | } |
|
|
2404 | |
|
|
2405 | static void |
|
|
2406 | coro_pop_on_enter (pTHX_ void *coro) |
|
|
2407 | { |
|
|
2408 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_enter); |
|
|
2409 | SvREFCNT_dec (cb); |
|
|
2410 | } |
|
|
2411 | |
|
|
2412 | static void |
|
|
2413 | coro_pop_on_leave (pTHX_ void *coro) |
|
|
2414 | { |
|
|
2415 | SV *cb = coro_avp_pop_and_free (aTHX_ &((struct coro *)coro)->on_leave); |
|
|
2416 | on_enterleave_call (aTHX_ sv_2mortal (cb)); |
|
|
2417 | } |
|
|
2418 | |
|
|
2419 | /*****************************************************************************/ |
|
|
2420 | /* PerlIO::cede */ |
|
|
2421 | |
|
|
2422 | typedef struct |
|
|
2423 | { |
|
|
2424 | PerlIOBuf base; |
|
|
2425 | NV next, every; |
|
|
2426 | } PerlIOCede; |
|
|
2427 | |
|
|
2428 | static IV |
|
|
2429 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
2430 | { |
|
|
2431 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2432 | |
|
|
2433 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
2434 | self->next = nvtime () + self->every; |
|
|
2435 | |
|
|
2436 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
2437 | } |
|
|
2438 | |
|
|
2439 | static SV * |
|
|
2440 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
2441 | { |
|
|
2442 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2443 | |
|
|
2444 | return newSVnv (self->every); |
|
|
2445 | } |
|
|
2446 | |
|
|
2447 | static IV |
|
|
2448 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
2449 | { |
|
|
2450 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2451 | double now = nvtime (); |
|
|
2452 | |
|
|
2453 | if (now >= self->next) |
|
|
2454 | { |
|
|
2455 | api_cede (aTHX); |
|
|
2456 | self->next = now + self->every; |
|
|
2457 | } |
|
|
2458 | |
|
|
2459 | return PerlIOBuf_flush (aTHX_ f); |
|
|
2460 | } |
|
|
2461 | |
|
|
2462 | static PerlIO_funcs PerlIO_cede = |
|
|
2463 | { |
|
|
2464 | sizeof(PerlIO_funcs), |
|
|
2465 | "cede", |
|
|
2466 | sizeof(PerlIOCede), |
|
|
2467 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
2468 | PerlIOCede_pushed, |
|
|
2469 | PerlIOBuf_popped, |
|
|
2470 | PerlIOBuf_open, |
|
|
2471 | PerlIOBase_binmode, |
|
|
2472 | PerlIOCede_getarg, |
|
|
2473 | PerlIOBase_fileno, |
|
|
2474 | PerlIOBuf_dup, |
|
|
2475 | PerlIOBuf_read, |
|
|
2476 | PerlIOBuf_unread, |
|
|
2477 | PerlIOBuf_write, |
|
|
2478 | PerlIOBuf_seek, |
|
|
2479 | PerlIOBuf_tell, |
|
|
2480 | PerlIOBuf_close, |
|
|
2481 | PerlIOCede_flush, |
|
|
2482 | PerlIOBuf_fill, |
|
|
2483 | PerlIOBase_eof, |
|
|
2484 | PerlIOBase_error, |
|
|
2485 | PerlIOBase_clearerr, |
|
|
2486 | PerlIOBase_setlinebuf, |
|
|
2487 | PerlIOBuf_get_base, |
|
|
2488 | PerlIOBuf_bufsiz, |
|
|
2489 | PerlIOBuf_get_ptr, |
|
|
2490 | PerlIOBuf_get_cnt, |
|
|
2491 | PerlIOBuf_set_ptrcnt, |
|
|
2492 | }; |
|
|
2493 | |
|
|
2494 | /*****************************************************************************/ |
|
|
2495 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2496 | |
|
|
2497 | static SV * |
|
|
2498 | coro_waitarray_new (pTHX_ int count) |
|
|
2499 | { |
|
|
2500 | /* a waitarray=semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2501 | AV *av = newAV (); |
|
|
2502 | SV **ary; |
|
|
2503 | |
|
|
2504 | /* unfortunately, building manually saves memory */ |
|
|
2505 | Newx (ary, 2, SV *); |
|
|
2506 | AvALLOC (av) = ary; |
|
|
2507 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
2508 | AvARRAY (av) = ary; |
|
|
2509 | #else |
|
|
2510 | /* 5.8.8 needs this syntax instead of AvARRAY = ary, yet */ |
|
|
2511 | /* -DDEBUGGING flags this as a bug, despite it perfectly working */ |
|
|
2512 | SvPVX ((SV *)av) = (char *)ary; |
|
|
2513 | #endif |
|
|
2514 | AvMAX (av) = 1; |
|
|
2515 | AvFILLp (av) = 0; |
|
|
2516 | ary [0] = newSViv (count); |
|
|
2517 | |
|
|
2518 | return newRV_noinc ((SV *)av); |
|
|
2519 | } |
|
|
2520 | |
|
|
2521 | /* semaphore */ |
|
|
2522 | |
|
|
2523 | static void |
|
|
2524 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2525 | { |
|
|
2526 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2527 | IV count = SvIVX (count_sv); |
|
|
2528 | |
|
|
2529 | count += adjust; |
|
|
2530 | SvIVX (count_sv) = count; |
|
|
2531 | |
|
|
2532 | /* now wake up as many waiters as are expected to lock */ |
|
|
2533 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2534 | { |
|
|
2535 | SV *cb; |
|
|
2536 | |
|
|
2537 | /* swap first two elements so we can shift a waiter */ |
|
|
2538 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2539 | AvARRAY (av)[1] = count_sv; |
|
|
2540 | cb = av_shift (av); |
|
|
2541 | |
|
|
2542 | if (SvOBJECT (cb)) |
|
|
2543 | { |
|
|
2544 | api_ready (aTHX_ cb); |
|
|
2545 | --count; |
|
|
2546 | } |
|
|
2547 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2548 | { |
|
|
2549 | dSP; |
|
|
2550 | PUSHMARK (SP); |
|
|
2551 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2552 | PUTBACK; |
|
|
2553 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2554 | } |
|
|
2555 | |
|
|
2556 | SvREFCNT_dec (cb); |
|
|
2557 | } |
|
|
2558 | } |
|
|
2559 | |
|
|
2560 | static void |
|
|
2561 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2562 | { |
|
|
2563 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2564 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2565 | } |
|
|
2566 | |
|
|
2567 | static int |
|
|
2568 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2569 | { |
|
|
2570 | AV *av = (AV *)frame->data; |
|
|
2571 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2572 | |
|
|
2573 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2574 | if (CORO_THROW) |
|
|
2575 | return 0; |
|
|
2576 | else if (SvIVX (count_sv) > 0) |
|
|
2577 | { |
|
|
2578 | SvSTATE_current->on_destroy = 0; |
|
|
2579 | |
|
|
2580 | if (acquire) |
|
|
2581 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2582 | else |
|
|
2583 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2584 | |
|
|
2585 | return 0; |
|
|
2586 | } |
|
|
2587 | else |
|
|
2588 | { |
|
|
2589 | int i; |
|
|
2590 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2591 | /* waiters list and only add us if we aren't in there already */ |
|
|
2592 | /* this avoids some degenerate memory usage cases */ |
|
|
2593 | |
|
|
2594 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2595 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2596 | return 1; |
|
|
2597 | |
|
|
2598 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2599 | return 1; |
|
|
2600 | } |
|
|
2601 | } |
|
|
2602 | |
|
|
2603 | static int |
|
|
2604 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2605 | { |
|
|
2606 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2607 | } |
|
|
2608 | |
|
|
2609 | static int |
|
|
2610 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2611 | { |
|
|
2612 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2613 | } |
|
|
2614 | |
|
|
2615 | static void |
|
|
2616 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2617 | { |
|
|
2618 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2619 | |
|
|
2620 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2621 | { |
|
|
2622 | frame->data = (void *)av; |
|
|
2623 | frame->prepare = prepare_nop; |
|
|
2624 | } |
|
|
2625 | else |
|
|
2626 | { |
|
|
2627 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2628 | |
|
|
2629 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2630 | frame->prepare = prepare_schedule; |
|
|
2631 | |
|
|
2632 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2633 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2634 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2635 | } |
|
|
2636 | } |
|
|
2637 | |
|
|
2638 | static void |
|
|
2639 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2640 | { |
|
|
2641 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2642 | frame->check = slf_check_semaphore_down; |
|
|
2643 | } |
|
|
2644 | |
|
|
2645 | static void |
|
|
2646 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2647 | { |
|
|
2648 | if (items >= 2) |
|
|
2649 | { |
|
|
2650 | /* callback form */ |
|
|
2651 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2652 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2653 | |
|
|
2654 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
2655 | |
|
|
2656 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2657 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2658 | |
|
|
2659 | frame->prepare = prepare_nop; |
|
|
2660 | frame->check = slf_check_nop; |
|
|
2661 | } |
|
|
2662 | else |
|
|
2663 | { |
|
|
2664 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2665 | frame->check = slf_check_semaphore_wait; |
|
|
2666 | } |
|
|
2667 | } |
|
|
2668 | |
|
|
2669 | /* signal */ |
|
|
2670 | |
|
|
2671 | static void |
|
|
2672 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2673 | { |
|
|
2674 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2675 | |
|
|
2676 | /* now signal count waiters */ |
|
|
2677 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2678 | { |
|
|
2679 | SV *cb; |
|
|
2680 | |
|
|
2681 | /* swap first two elements so we can shift a waiter */ |
|
|
2682 | cb = AvARRAY (av)[0]; |
|
|
2683 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2684 | AvARRAY (av)[1] = cb; |
|
|
2685 | |
|
|
2686 | cb = av_shift (av); |
|
|
2687 | |
|
|
2688 | if (SvTYPE (cb) == SVt_PVCV) |
|
|
2689 | { |
|
|
2690 | dSP; |
|
|
2691 | PUSHMARK (SP); |
|
|
2692 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2693 | PUTBACK; |
|
|
2694 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2695 | } |
|
|
2696 | else |
|
|
2697 | { |
|
|
2698 | api_ready (aTHX_ cb); |
|
|
2699 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2700 | } |
|
|
2701 | |
|
|
2702 | SvREFCNT_dec (cb); |
|
|
2703 | |
|
|
2704 | --count; |
|
|
2705 | } |
|
|
2706 | } |
|
|
2707 | |
|
|
2708 | static int |
|
|
2709 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2710 | { |
|
|
2711 | /* if we are about to throw, also stop waiting */ |
|
|
2712 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2713 | } |
|
|
2714 | |
|
|
2715 | static void |
|
|
2716 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2717 | { |
|
|
2718 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2719 | |
|
|
2720 | if (items >= 2) |
|
|
2721 | { |
|
|
2722 | CV *cb_cv = coro_sv_2cv (aTHX_ arg [1]); |
|
|
2723 | av_push (av, SvREFCNT_inc_NN (cb_cv)); |
|
|
2724 | |
|
|
2725 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2726 | coro_signal_wake (aTHX_ av, 1); /* ust be the only waiter */ |
|
|
2727 | |
|
|
2728 | frame->prepare = prepare_nop; |
|
|
2729 | frame->check = slf_check_nop; |
|
|
2730 | } |
|
|
2731 | else if (SvIVX (AvARRAY (av)[0])) |
|
|
2732 | { |
|
|
2733 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2734 | frame->prepare = prepare_nop; |
|
|
2735 | frame->check = slf_check_nop; |
|
|
2736 | } |
|
|
2737 | else |
|
|
2738 | { |
|
|
2739 | SV *waiter = newSVsv (coro_current); /* owned by signal av */ |
|
|
2740 | |
|
|
2741 | av_push (av, waiter); |
|
|
2742 | |
|
|
2743 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2744 | frame->prepare = prepare_schedule; |
|
|
2745 | frame->check = slf_check_signal_wait; |
|
|
2746 | } |
|
|
2747 | } |
|
|
2748 | |
|
|
2749 | /*****************************************************************************/ |
|
|
2750 | /* Coro::AIO */ |
|
|
2751 | |
|
|
2752 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2753 | |
|
|
2754 | /* helper storage struct */ |
|
|
2755 | struct io_state |
|
|
2756 | { |
|
|
2757 | int errorno; |
|
|
2758 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2759 | int laststatval; |
|
|
2760 | Stat_t statcache; |
|
|
2761 | }; |
|
|
2762 | |
|
|
2763 | static void |
|
|
2764 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2765 | { |
|
|
2766 | dXSARGS; |
|
|
2767 | AV *state = (AV *)GENSUB_ARG; |
|
|
2768 | SV *coro = av_pop (state); |
|
|
2769 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2770 | |
|
|
2771 | av_extend (state, items - 1); |
|
|
2772 | |
|
|
2773 | sv_upgrade (data_sv, SVt_PV); |
|
|
2774 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2775 | SvPOK_only (data_sv); |
|
|
2776 | |
|
|
2777 | { |
|
|
2778 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2779 | |
|
|
2780 | data->errorno = errno; |
|
|
2781 | data->laststype = PL_laststype; |
|
|
2782 | data->laststatval = PL_laststatval; |
|
|
2783 | data->statcache = PL_statcache; |
|
|
2784 | } |
|
|
2785 | |
|
|
2786 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2787 | { |
|
|
2788 | int i; |
|
|
2789 | |
|
|
2790 | for (i = 0; i < items; ++i) |
|
|
2791 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2792 | } |
|
|
2793 | |
|
|
2794 | av_push (state, data_sv); |
|
|
2795 | |
|
|
2796 | api_ready (aTHX_ coro); |
|
|
2797 | SvREFCNT_dec (coro); |
|
|
2798 | SvREFCNT_dec ((AV *)state); |
|
|
2799 | } |
|
|
2800 | |
|
|
2801 | static int |
|
|
2802 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2803 | { |
|
|
2804 | AV *state = (AV *)frame->data; |
|
|
2805 | |
|
|
2806 | /* if we are about to throw, return early */ |
|
|
2807 | /* this does not cancel the aio request, but at least */ |
|
|
2808 | /* it quickly returns */ |
|
|
2809 | if (CORO_THROW) |
|
|
2810 | return 0; |
|
|
2811 | |
|
|
2812 | /* one element that is an RV? repeat! */ |
|
|
2813 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2814 | return 1; |
|
|
2815 | |
|
|
2816 | /* restore status */ |
|
|
2817 | { |
|
|
2818 | SV *data_sv = av_pop (state); |
|
|
2819 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2820 | |
|
|
2821 | errno = data->errorno; |
|
|
2822 | PL_laststype = data->laststype; |
|
|
2823 | PL_laststatval = data->laststatval; |
|
|
2824 | PL_statcache = data->statcache; |
|
|
2825 | |
|
|
2826 | SvREFCNT_dec (data_sv); |
|
|
2827 | } |
|
|
2828 | |
|
|
2829 | /* push result values */ |
|
|
2830 | { |
|
|
2831 | dSP; |
|
|
2832 | int i; |
|
|
2833 | |
|
|
2834 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2835 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2836 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2837 | |
|
|
2838 | PUTBACK; |
|
|
2839 | } |
|
|
2840 | |
|
|
2841 | return 0; |
|
|
2842 | } |
|
|
2843 | |
|
|
2844 | static void |
|
|
2845 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2846 | { |
|
|
2847 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2848 | SV *coro_hv = SvRV (coro_current); |
|
|
2849 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2850 | |
|
|
2851 | /* put our coroutine id on the state arg */ |
|
|
2852 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2853 | |
|
|
2854 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2855 | if (coro->prio) |
|
|
2856 | { |
|
|
2857 | dSP; |
|
|
2858 | |
|
|
2859 | static SV *prio_cv; |
|
|
2860 | static SV *prio_sv; |
|
|
2861 | |
|
|
2862 | if (expect_false (!prio_cv)) |
|
|
2863 | { |
|
|
2864 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2865 | prio_sv = newSViv (0); |
|
|
2866 | } |
|
|
2867 | |
|
|
2868 | PUSHMARK (SP); |
|
|
2869 | sv_setiv (prio_sv, coro->prio); |
|
|
2870 | XPUSHs (prio_sv); |
|
|
2871 | |
|
|
2872 | PUTBACK; |
|
|
2873 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2874 | } |
|
|
2875 | |
|
|
2876 | /* now call the original request */ |
|
|
2877 | { |
|
|
2878 | dSP; |
|
|
2879 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2880 | int i; |
|
|
2881 | |
|
|
2882 | PUSHMARK (SP); |
|
|
2883 | |
|
|
2884 | /* first push all args to the stack */ |
|
|
2885 | EXTEND (SP, items + 1); |
|
|
2886 | |
|
|
2887 | for (i = 0; i < items; ++i) |
|
|
2888 | PUSHs (arg [i]); |
|
|
2889 | |
|
|
2890 | /* now push the callback closure */ |
|
|
2891 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2892 | |
|
|
2893 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2894 | PUTBACK; |
|
|
2895 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2896 | } |
|
|
2897 | |
|
|
2898 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2899 | frame->data = (void *)state; |
|
|
2900 | frame->prepare = prepare_schedule; |
|
|
2901 | frame->check = slf_check_aio_req; |
|
|
2902 | } |
|
|
2903 | |
|
|
2904 | static void |
|
|
2905 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2906 | { |
|
|
2907 | dXSARGS; |
|
|
2908 | |
|
|
2909 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2910 | |
|
|
2911 | XSRETURN_EMPTY; |
|
|
2912 | } |
|
|
2913 | |
|
|
2914 | /*****************************************************************************/ |
|
|
2915 | |
|
|
2916 | #if CORO_CLONE |
|
|
2917 | # include "clone.c" |
|
|
2918 | #endif |
|
|
2919 | |
1478 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2920 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1479 | |
2921 | |
1480 | PROTOTYPES: DISABLE |
2922 | PROTOTYPES: DISABLE |
1481 | |
2923 | |
1482 | BOOT: |
2924 | BOOT: |
1483 | { |
2925 | { |
1484 | #ifdef USE_ITHREADS |
2926 | #ifdef USE_ITHREADS |
1485 | MUTEX_INIT (&coro_mutex); |
2927 | # if CORO_PTHREAD |
|
|
2928 | coro_thx = PERL_GET_CONTEXT; |
|
|
2929 | # endif |
1486 | #endif |
2930 | #endif |
1487 | BOOT_PAGESIZE; |
2931 | BOOT_PAGESIZE; |
|
|
2932 | |
|
|
2933 | cctx_current = cctx_new_empty (); |
1488 | |
2934 | |
1489 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2935 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1490 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2936 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
1491 | |
2937 | |
1492 | sv_diehook = coro_get_sv ("Coro::State::DIEHOOK" , TRUE); |
2938 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
1493 | sv_warnhook = coro_get_sv ("Coro::State::WARNHOOK", TRUE); |
2939 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
2940 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
1494 | |
2941 | |
1495 | if (!PL_diehook) PL_diehook = SvREFCNT_inc (sv_diehook); |
2942 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
1496 | if (!PL_warnhook) PL_warnhook = SvREFCNT_inc (sv_warnhook); |
2943 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
2944 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1497 | |
2945 | |
1498 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
2946 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1499 | |
2947 | |
1500 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
2948 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1501 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
2949 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
… | |
… | |
1506 | main_top_env = PL_top_env; |
2954 | main_top_env = PL_top_env; |
1507 | |
2955 | |
1508 | while (main_top_env->je_prev) |
2956 | while (main_top_env->je_prev) |
1509 | main_top_env = main_top_env->je_prev; |
2957 | main_top_env = main_top_env->je_prev; |
1510 | |
2958 | |
|
|
2959 | { |
|
|
2960 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2961 | |
|
|
2962 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2963 | hv_store_ent (PL_custom_op_names, slf, newSVpv ("coro_slf", 0), 0); |
|
|
2964 | |
|
|
2965 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2966 | hv_store_ent (PL_custom_op_descs, slf, newSVpv ("coro schedule like function", 0), 0); |
|
|
2967 | } |
|
|
2968 | |
1511 | coroapi.ver = CORO_API_VERSION; |
2969 | coroapi.ver = CORO_API_VERSION; |
|
|
2970 | coroapi.rev = CORO_API_REVISION; |
|
|
2971 | |
1512 | coroapi.transfer = api_transfer; |
2972 | coroapi.transfer = api_transfer; |
1513 | |
2973 | |
|
|
2974 | coroapi.sv_state = SvSTATE_; |
|
|
2975 | coroapi.execute_slf = api_execute_slf; |
|
|
2976 | coroapi.prepare_nop = prepare_nop; |
|
|
2977 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2978 | coroapi.prepare_cede = prepare_cede; |
|
|
2979 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
2980 | |
|
|
2981 | { |
|
|
2982 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
2983 | |
|
|
2984 | if (!svp) croak ("Time::HiRes is required"); |
|
|
2985 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
2986 | |
|
|
2987 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
2988 | } |
|
|
2989 | |
1514 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2990 | assert (("PRIO_NORMAL must be 0", !CORO_PRIO_NORMAL)); |
1515 | } |
2991 | } |
1516 | |
2992 | |
1517 | SV * |
2993 | SV * |
1518 | new (char *klass, ...) |
2994 | new (char *klass, ...) |
|
|
2995 | ALIAS: |
|
|
2996 | Coro::new = 1 |
1519 | CODE: |
2997 | CODE: |
1520 | { |
2998 | { |
1521 | struct coro *coro; |
2999 | struct coro *coro; |
|
|
3000 | MAGIC *mg; |
1522 | HV *hv; |
3001 | HV *hv; |
|
|
3002 | CV *cb; |
1523 | int i; |
3003 | int i; |
|
|
3004 | |
|
|
3005 | if (items > 1) |
|
|
3006 | { |
|
|
3007 | cb = coro_sv_2cv (aTHX_ ST (1)); |
|
|
3008 | |
|
|
3009 | if (!ix) |
|
|
3010 | { |
|
|
3011 | if (CvISXSUB (cb)) |
|
|
3012 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
3013 | |
|
|
3014 | if (!CvROOT (cb)) |
|
|
3015 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
3016 | } |
|
|
3017 | } |
1524 | |
3018 | |
1525 | Newz (0, coro, 1, struct coro); |
3019 | Newz (0, coro, 1, struct coro); |
1526 | coro->args = newAV (); |
3020 | coro->args = newAV (); |
1527 | coro->flags = CF_NEW; |
3021 | coro->flags = CF_NEW; |
1528 | |
3022 | |
1529 | if (coro_first) coro_first->prev = coro; |
3023 | if (coro_first) coro_first->prev = coro; |
1530 | coro->next = coro_first; |
3024 | coro->next = coro_first; |
1531 | coro_first = coro; |
3025 | coro_first = coro; |
1532 | |
3026 | |
1533 | coro->hv = hv = newHV (); |
3027 | coro->hv = hv = newHV (); |
1534 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
3028 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
3029 | mg->mg_flags |= MGf_DUP; |
1535 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
3030 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1536 | |
3031 | |
|
|
3032 | if (items > 1) |
|
|
3033 | { |
1537 | av_extend (coro->args, items - 1); |
3034 | av_extend (coro->args, items - 1 + ix - 1); |
|
|
3035 | |
|
|
3036 | if (ix) |
|
|
3037 | { |
|
|
3038 | av_push (coro->args, SvREFCNT_inc_NN ((SV *)cb)); |
|
|
3039 | cb = cv_coro_run; |
|
|
3040 | } |
|
|
3041 | |
|
|
3042 | coro->startcv = (CV *)SvREFCNT_inc_NN ((SV *)cb); |
|
|
3043 | |
1538 | for (i = 1; i < items; i++) |
3044 | for (i = 2; i < items; i++) |
1539 | av_push (coro->args, newSVsv (ST (i))); |
3045 | av_push (coro->args, newSVsv (ST (i))); |
|
|
3046 | } |
1540 | } |
3047 | } |
1541 | OUTPUT: |
3048 | OUTPUT: |
1542 | RETVAL |
3049 | RETVAL |
1543 | |
3050 | |
1544 | # these not obviously related functions are all rolled into the same xs |
|
|
1545 | # function to increase chances that they all will call transfer with the same |
|
|
1546 | # stack offset |
|
|
1547 | void |
3051 | void |
1548 | _set_stacklevel (...) |
3052 | transfer (...) |
1549 | ALIAS: |
3053 | PROTOTYPE: $$ |
1550 | Coro::State::transfer = 1 |
3054 | CODE: |
1551 | Coro::schedule = 2 |
3055 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1552 | Coro::cede = 3 |
|
|
1553 | Coro::cede_notself = 4 |
|
|
1554 | CODE: |
|
|
1555 | { |
|
|
1556 | struct transfer_args ta; |
|
|
1557 | |
|
|
1558 | switch (ix) |
|
|
1559 | { |
|
|
1560 | case 0: |
|
|
1561 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1562 | ta.next = 0; |
|
|
1563 | break; |
|
|
1564 | |
|
|
1565 | case 1: |
|
|
1566 | if (items != 2) |
|
|
1567 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1568 | |
|
|
1569 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1570 | break; |
|
|
1571 | |
|
|
1572 | case 2: |
|
|
1573 | prepare_schedule (aTHX_ &ta); |
|
|
1574 | break; |
|
|
1575 | |
|
|
1576 | case 3: |
|
|
1577 | prepare_cede (aTHX_ &ta); |
|
|
1578 | break; |
|
|
1579 | |
|
|
1580 | case 4: |
|
|
1581 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1582 | XSRETURN_EMPTY; |
|
|
1583 | |
|
|
1584 | break; |
|
|
1585 | } |
|
|
1586 | |
|
|
1587 | BARRIER; |
|
|
1588 | TRANSFER (ta); |
|
|
1589 | |
|
|
1590 | if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev)) |
|
|
1591 | XSRETURN_YES; |
|
|
1592 | } |
|
|
1593 | |
3056 | |
1594 | bool |
3057 | bool |
1595 | _destroy (SV *coro_sv) |
3058 | _destroy (SV *coro_sv) |
1596 | CODE: |
3059 | CODE: |
1597 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
3060 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1598 | OUTPUT: |
3061 | OUTPUT: |
1599 | RETVAL |
3062 | RETVAL |
1600 | |
3063 | |
1601 | void |
3064 | void |
1602 | _exit (code) |
3065 | _exit (int code) |
1603 | int code |
|
|
1604 | PROTOTYPE: $ |
3066 | PROTOTYPE: $ |
1605 | CODE: |
3067 | CODE: |
1606 | _exit (code); |
3068 | _exit (code); |
1607 | |
3069 | |
|
|
3070 | SV * |
|
|
3071 | clone (Coro::State coro) |
|
|
3072 | CODE: |
|
|
3073 | { |
|
|
3074 | #if CORO_CLONE |
|
|
3075 | struct coro *ncoro = coro_clone (aTHX_ coro); |
|
|
3076 | MAGIC *mg; |
|
|
3077 | /* TODO: too much duplication */ |
|
|
3078 | ncoro->hv = newHV (); |
|
|
3079 | mg = sv_magicext ((SV *)ncoro->hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)ncoro, 0); |
|
|
3080 | mg->mg_flags |= MGf_DUP; |
|
|
3081 | RETVAL = sv_bless (newRV_noinc ((SV *)ncoro->hv), SvSTASH (coro->hv)); |
|
|
3082 | #else |
|
|
3083 | croak ("Coro::State->clone has not been configured into this installation of Coro, realised"); |
|
|
3084 | #endif |
|
|
3085 | } |
|
|
3086 | OUTPUT: |
|
|
3087 | RETVAL |
|
|
3088 | |
1608 | int |
3089 | int |
1609 | cctx_stacksize (int new_stacksize = 0) |
3090 | cctx_stacksize (int new_stacksize = 0) |
|
|
3091 | PROTOTYPE: ;$ |
1610 | CODE: |
3092 | CODE: |
1611 | RETVAL = coro_stacksize; |
3093 | RETVAL = cctx_stacksize; |
1612 | if (new_stacksize) |
3094 | if (new_stacksize) |
|
|
3095 | { |
1613 | coro_stacksize = new_stacksize; |
3096 | cctx_stacksize = new_stacksize; |
|
|
3097 | ++cctx_gen; |
|
|
3098 | } |
1614 | OUTPUT: |
3099 | OUTPUT: |
1615 | RETVAL |
3100 | RETVAL |
1616 | |
3101 | |
1617 | int |
3102 | int |
|
|
3103 | cctx_max_idle (int max_idle = 0) |
|
|
3104 | PROTOTYPE: ;$ |
|
|
3105 | CODE: |
|
|
3106 | RETVAL = cctx_max_idle; |
|
|
3107 | if (max_idle > 1) |
|
|
3108 | cctx_max_idle = max_idle; |
|
|
3109 | OUTPUT: |
|
|
3110 | RETVAL |
|
|
3111 | |
|
|
3112 | int |
1618 | cctx_count () |
3113 | cctx_count () |
|
|
3114 | PROTOTYPE: |
1619 | CODE: |
3115 | CODE: |
1620 | RETVAL = cctx_count; |
3116 | RETVAL = cctx_count; |
1621 | OUTPUT: |
3117 | OUTPUT: |
1622 | RETVAL |
3118 | RETVAL |
1623 | |
3119 | |
1624 | int |
3120 | int |
1625 | cctx_idle () |
3121 | cctx_idle () |
|
|
3122 | PROTOTYPE: |
1626 | CODE: |
3123 | CODE: |
1627 | RETVAL = cctx_idle; |
3124 | RETVAL = cctx_idle; |
1628 | OUTPUT: |
3125 | OUTPUT: |
1629 | RETVAL |
3126 | RETVAL |
1630 | |
3127 | |
1631 | void |
3128 | void |
1632 | list () |
3129 | list () |
|
|
3130 | PROTOTYPE: |
1633 | PPCODE: |
3131 | PPCODE: |
1634 | { |
3132 | { |
1635 | struct coro *coro; |
3133 | struct coro *coro; |
1636 | for (coro = coro_first; coro; coro = coro->next) |
3134 | for (coro = coro_first; coro; coro = coro->next) |
1637 | if (coro->hv) |
3135 | if (coro->hv) |
… | |
… | |
1642 | call (Coro::State coro, SV *coderef) |
3140 | call (Coro::State coro, SV *coderef) |
1643 | ALIAS: |
3141 | ALIAS: |
1644 | eval = 1 |
3142 | eval = 1 |
1645 | CODE: |
3143 | CODE: |
1646 | { |
3144 | { |
1647 | if (coro->mainstack) |
3145 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1648 | { |
3146 | { |
1649 | struct coro temp; |
3147 | struct coro *current = SvSTATE_current; |
1650 | |
3148 | |
1651 | if (!(coro->flags & CF_RUNNING)) |
3149 | if (current != coro) |
1652 | { |
3150 | { |
|
|
3151 | PUTBACK; |
1653 | save_perl (aTHX_ &temp); |
3152 | save_perl (aTHX_ current); |
1654 | load_perl (aTHX_ coro); |
3153 | load_perl (aTHX_ coro); |
|
|
3154 | SPAGAIN; |
1655 | } |
3155 | } |
1656 | |
3156 | |
1657 | { |
3157 | PUSHSTACK; |
1658 | dSP; |
3158 | |
1659 | ENTER; |
|
|
1660 | SAVETMPS; |
|
|
1661 | PUSHMARK (SP); |
3159 | PUSHMARK (SP); |
1662 | PUTBACK; |
3160 | PUTBACK; |
1663 | |
3161 | |
1664 | if (ix) |
3162 | if (ix) |
1665 | eval_sv (coderef, 0); |
3163 | eval_sv (coderef, 0); |
1666 | else |
3164 | else |
1667 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
3165 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1668 | |
3166 | |
|
|
3167 | POPSTACK; |
1669 | SPAGAIN; |
3168 | SPAGAIN; |
1670 | FREETMPS; |
|
|
1671 | LEAVE; |
|
|
1672 | PUTBACK; |
|
|
1673 | } |
|
|
1674 | |
3169 | |
1675 | if (!(coro->flags & CF_RUNNING)) |
3170 | if (current != coro) |
1676 | { |
3171 | { |
|
|
3172 | PUTBACK; |
1677 | save_perl (aTHX_ coro); |
3173 | save_perl (aTHX_ coro); |
1678 | load_perl (aTHX_ &temp); |
3174 | load_perl (aTHX_ current); |
|
|
3175 | SPAGAIN; |
1679 | } |
3176 | } |
1680 | } |
3177 | } |
1681 | } |
3178 | } |
1682 | |
3179 | |
1683 | SV * |
3180 | SV * |
… | |
… | |
1686 | ALIAS: |
3183 | ALIAS: |
1687 | is_ready = CF_READY |
3184 | is_ready = CF_READY |
1688 | is_running = CF_RUNNING |
3185 | is_running = CF_RUNNING |
1689 | is_new = CF_NEW |
3186 | is_new = CF_NEW |
1690 | is_destroyed = CF_DESTROYED |
3187 | is_destroyed = CF_DESTROYED |
|
|
3188 | is_suspended = CF_SUSPENDED |
1691 | CODE: |
3189 | CODE: |
1692 | RETVAL = boolSV (coro->flags & ix); |
3190 | RETVAL = boolSV (coro->flags & ix); |
1693 | OUTPUT: |
3191 | OUTPUT: |
1694 | RETVAL |
3192 | RETVAL |
1695 | |
3193 | |
1696 | void |
3194 | void |
|
|
3195 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
3196 | PROTOTYPE: $;$ |
|
|
3197 | CODE: |
|
|
3198 | { |
|
|
3199 | struct coro *current = SvSTATE_current; |
|
|
3200 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
|
|
3201 | SvREFCNT_dec (*throwp); |
|
|
3202 | SvGETMAGIC (throw); |
|
|
3203 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
3204 | } |
|
|
3205 | |
|
|
3206 | void |
1697 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
3207 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
3208 | PROTOTYPE: $;$ |
|
|
3209 | C_ARGS: aTHX_ coro, flags |
1698 | |
3210 | |
1699 | SV * |
3211 | SV * |
1700 | has_stack (Coro::State coro) |
3212 | has_cctx (Coro::State coro) |
1701 | PROTOTYPE: $ |
3213 | PROTOTYPE: $ |
1702 | CODE: |
3214 | CODE: |
1703 | RETVAL = boolSV (!!coro->cctx); |
3215 | /* maybe manage the running flag differently */ |
|
|
3216 | RETVAL = boolSV (!!coro->cctx || (coro->flags & CF_RUNNING)); |
1704 | OUTPUT: |
3217 | OUTPUT: |
1705 | RETVAL |
3218 | RETVAL |
1706 | |
3219 | |
1707 | int |
3220 | int |
1708 | is_traced (Coro::State coro) |
3221 | is_traced (Coro::State coro) |
… | |
… | |
1710 | CODE: |
3223 | CODE: |
1711 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
3224 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1712 | OUTPUT: |
3225 | OUTPUT: |
1713 | RETVAL |
3226 | RETVAL |
1714 | |
3227 | |
1715 | IV |
3228 | UV |
1716 | rss (Coro::State coro) |
3229 | rss (Coro::State coro) |
1717 | PROTOTYPE: $ |
3230 | PROTOTYPE: $ |
1718 | ALIAS: |
3231 | ALIAS: |
1719 | usecount = 1 |
3232 | usecount = 1 |
1720 | CODE: |
3233 | CODE: |
… | |
… | |
1724 | case 1: RETVAL = coro->usecount; break; |
3237 | case 1: RETVAL = coro->usecount; break; |
1725 | } |
3238 | } |
1726 | OUTPUT: |
3239 | OUTPUT: |
1727 | RETVAL |
3240 | RETVAL |
1728 | |
3241 | |
|
|
3242 | void |
|
|
3243 | force_cctx () |
|
|
3244 | PROTOTYPE: |
|
|
3245 | CODE: |
|
|
3246 | cctx_current->idle_sp = 0; |
|
|
3247 | |
|
|
3248 | void |
|
|
3249 | swap_defsv (Coro::State self) |
|
|
3250 | PROTOTYPE: $ |
|
|
3251 | ALIAS: |
|
|
3252 | swap_defav = 1 |
|
|
3253 | CODE: |
|
|
3254 | if (!self->slot) |
|
|
3255 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
3256 | else |
|
|
3257 | { |
|
|
3258 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
3259 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
3260 | |
|
|
3261 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
3262 | } |
|
|
3263 | |
|
|
3264 | void |
|
|
3265 | cancel (Coro::State self) |
|
|
3266 | CODE: |
|
|
3267 | coro_state_destroy (aTHX_ self); |
|
|
3268 | coro_call_on_destroy (aTHX_ self); /* actually only for Coro objects */ |
|
|
3269 | |
1729 | |
3270 | |
1730 | MODULE = Coro::State PACKAGE = Coro |
3271 | MODULE = Coro::State PACKAGE = Coro |
1731 | |
3272 | |
1732 | BOOT: |
3273 | BOOT: |
1733 | { |
3274 | { |
1734 | int i; |
|
|
1735 | |
|
|
1736 | sv_pool_rss = coro_get_sv ("Coro::POOL_RSS" , TRUE); |
3275 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
1737 | sv_pool_size = coro_get_sv ("Coro::POOL_SIZE" , TRUE); |
3276 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
3277 | cv_coro_run = get_cv ( "Coro::_coro_run" , GV_ADD); |
|
|
3278 | cv_coro_terminate = get_cv ( "Coro::terminate" , GV_ADD); |
|
|
3279 | coro_current = coro_get_sv (aTHX_ "Coro::current" , FALSE); SvREADONLY_on (coro_current); |
1738 | av_async_pool = coro_get_av ("Coro::async_pool", TRUE); |
3280 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
3281 | av_destroy = coro_get_av (aTHX_ "Coro::destroy" , TRUE); |
|
|
3282 | sv_manager = coro_get_sv (aTHX_ "Coro::manager" , TRUE); |
|
|
3283 | sv_idle = coro_get_sv (aTHX_ "Coro::idle" , TRUE); |
1739 | |
3284 | |
1740 | coro_current = coro_get_sv ("Coro::current", FALSE); |
3285 | sv_async_pool_idle = newSVpv ("[async pool idle]", 0); SvREADONLY_on (sv_async_pool_idle); |
1741 | SvREADONLY_on (coro_current); |
3286 | sv_Coro = newSVpv ("Coro", 0); SvREADONLY_on (sv_Coro); |
|
|
3287 | cv_pool_handler = get_cv ("Coro::pool_handler", GV_ADD); SvREADONLY_on (cv_pool_handler); |
|
|
3288 | cv_coro_state_new = get_cv ("Coro::State::new", 0); SvREADONLY_on (cv_coro_state_new); |
1742 | |
3289 | |
1743 | coro_stash = gv_stashpv ("Coro", TRUE); |
3290 | coro_stash = gv_stashpv ("Coro", TRUE); |
1744 | |
3291 | |
1745 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
3292 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (CORO_PRIO_MAX)); |
1746 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
3293 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (CORO_PRIO_HIGH)); |
1747 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
3294 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (CORO_PRIO_NORMAL)); |
1748 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
3295 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (CORO_PRIO_LOW)); |
1749 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
3296 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (CORO_PRIO_IDLE)); |
1750 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
3297 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (CORO_PRIO_MIN)); |
1751 | |
|
|
1752 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
|
|
1753 | coro_ready[i] = newAV (); |
|
|
1754 | |
3298 | |
1755 | { |
3299 | { |
1756 | SV *sv = perl_get_sv ("Coro::API", TRUE); |
3300 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1757 | perl_get_sv ("Coro::API", TRUE); /* silence 5.10 warning */ |
|
|
1758 | |
3301 | |
1759 | coroapi.schedule = api_schedule; |
3302 | coroapi.schedule = api_schedule; |
|
|
3303 | coroapi.schedule_to = api_schedule_to; |
1760 | coroapi.cede = api_cede; |
3304 | coroapi.cede = api_cede; |
1761 | coroapi.cede_notself = api_cede_notself; |
3305 | coroapi.cede_notself = api_cede_notself; |
1762 | coroapi.ready = api_ready; |
3306 | coroapi.ready = api_ready; |
1763 | coroapi.is_ready = api_is_ready; |
3307 | coroapi.is_ready = api_is_ready; |
1764 | coroapi.nready = &coro_nready; |
3308 | coroapi.nready = coro_nready; |
1765 | coroapi.current = coro_current; |
3309 | coroapi.current = coro_current; |
1766 | |
3310 | |
1767 | GCoroAPI = &coroapi; |
3311 | /*GCoroAPI = &coroapi;*/ |
1768 | sv_setiv (sv, (IV)&coroapi); |
3312 | sv_setiv (sv, (IV)&coroapi); |
1769 | SvREADONLY_on (sv); |
3313 | SvREADONLY_on (sv); |
1770 | } |
3314 | } |
1771 | } |
3315 | } |
|
|
3316 | |
|
|
3317 | void |
|
|
3318 | terminate (...) |
|
|
3319 | CODE: |
|
|
3320 | CORO_EXECUTE_SLF_XS (slf_init_terminate); |
|
|
3321 | |
|
|
3322 | void |
|
|
3323 | schedule (...) |
|
|
3324 | CODE: |
|
|
3325 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
3326 | |
|
|
3327 | void |
|
|
3328 | schedule_to (...) |
|
|
3329 | CODE: |
|
|
3330 | CORO_EXECUTE_SLF_XS (slf_init_schedule_to); |
|
|
3331 | |
|
|
3332 | void |
|
|
3333 | cede_to (...) |
|
|
3334 | CODE: |
|
|
3335 | CORO_EXECUTE_SLF_XS (slf_init_cede_to); |
|
|
3336 | |
|
|
3337 | void |
|
|
3338 | cede (...) |
|
|
3339 | CODE: |
|
|
3340 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
3341 | |
|
|
3342 | void |
|
|
3343 | cede_notself (...) |
|
|
3344 | CODE: |
|
|
3345 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1772 | |
3346 | |
1773 | void |
3347 | void |
1774 | _set_current (SV *current) |
3348 | _set_current (SV *current) |
1775 | PROTOTYPE: $ |
3349 | PROTOTYPE: $ |
1776 | CODE: |
3350 | CODE: |
1777 | SvREFCNT_dec (SvRV (coro_current)); |
3351 | SvREFCNT_dec (SvRV (coro_current)); |
1778 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
3352 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
3353 | |
|
|
3354 | void |
|
|
3355 | _set_readyhook (SV *hook) |
|
|
3356 | PROTOTYPE: $ |
|
|
3357 | CODE: |
|
|
3358 | SvREFCNT_dec (coro_readyhook); |
|
|
3359 | SvGETMAGIC (hook); |
|
|
3360 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
1779 | |
3361 | |
1780 | int |
3362 | int |
1781 | prio (Coro::State coro, int newprio = 0) |
3363 | prio (Coro::State coro, int newprio = 0) |
|
|
3364 | PROTOTYPE: $;$ |
1782 | ALIAS: |
3365 | ALIAS: |
1783 | nice = 1 |
3366 | nice = 1 |
1784 | CODE: |
3367 | CODE: |
1785 | { |
3368 | { |
1786 | RETVAL = coro->prio; |
3369 | RETVAL = coro->prio; |
… | |
… | |
1788 | if (items > 1) |
3371 | if (items > 1) |
1789 | { |
3372 | { |
1790 | if (ix) |
3373 | if (ix) |
1791 | newprio = coro->prio - newprio; |
3374 | newprio = coro->prio - newprio; |
1792 | |
3375 | |
1793 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
3376 | if (newprio < CORO_PRIO_MIN) newprio = CORO_PRIO_MIN; |
1794 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
3377 | if (newprio > CORO_PRIO_MAX) newprio = CORO_PRIO_MAX; |
1795 | |
3378 | |
1796 | coro->prio = newprio; |
3379 | coro->prio = newprio; |
1797 | } |
3380 | } |
1798 | } |
3381 | } |
1799 | OUTPUT: |
3382 | OUTPUT: |
… | |
… | |
1801 | |
3384 | |
1802 | SV * |
3385 | SV * |
1803 | ready (SV *self) |
3386 | ready (SV *self) |
1804 | PROTOTYPE: $ |
3387 | PROTOTYPE: $ |
1805 | CODE: |
3388 | CODE: |
1806 | RETVAL = boolSV (api_ready (self)); |
3389 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1807 | OUTPUT: |
3390 | OUTPUT: |
1808 | RETVAL |
3391 | RETVAL |
1809 | |
3392 | |
1810 | int |
3393 | int |
1811 | nready (...) |
3394 | nready (...) |
… | |
… | |
1814 | RETVAL = coro_nready; |
3397 | RETVAL = coro_nready; |
1815 | OUTPUT: |
3398 | OUTPUT: |
1816 | RETVAL |
3399 | RETVAL |
1817 | |
3400 | |
1818 | void |
3401 | void |
1819 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
3402 | suspend (Coro::State self) |
1820 | PROTOTYPE: $;$ |
3403 | PROTOTYPE: $ |
1821 | CODE: |
3404 | CODE: |
1822 | SvREFCNT_dec (self->throw); |
3405 | self->flags |= CF_SUSPENDED; |
1823 | self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
1824 | |
3406 | |
1825 | # for async_pool speedup |
|
|
1826 | void |
3407 | void |
1827 | _pool_1 (SV *cb) |
3408 | resume (Coro::State self) |
|
|
3409 | PROTOTYPE: $ |
1828 | CODE: |
3410 | CODE: |
1829 | { |
3411 | self->flags &= ~CF_SUSPENDED; |
1830 | struct coro *coro = SvSTATE (coro_current); |
|
|
1831 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1832 | AV *defav = GvAV (PL_defgv); |
|
|
1833 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1834 | AV *invoke_av; |
|
|
1835 | int i, len; |
|
|
1836 | |
3412 | |
1837 | if (!invoke) |
3413 | void |
1838 | croak ("\3async_pool terminate\2\n"); |
3414 | _pool_handler (...) |
|
|
3415 | CODE: |
|
|
3416 | CORO_EXECUTE_SLF_XS (slf_init_pool_handler); |
1839 | |
3417 | |
1840 | SvREFCNT_dec (coro->saved_deffh); |
3418 | void |
1841 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
3419 | async_pool (SV *cv, ...) |
|
|
3420 | PROTOTYPE: &@ |
|
|
3421 | PPCODE: |
|
|
3422 | { |
|
|
3423 | HV *hv = (HV *)av_pop (av_async_pool); |
|
|
3424 | AV *av = newAV (); |
|
|
3425 | SV *cb = ST (0); |
|
|
3426 | int i; |
1842 | |
3427 | |
1843 | hv_store (hv, "desc", sizeof ("desc") - 1, |
3428 | av_extend (av, items - 2); |
1844 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
3429 | for (i = 1; i < items; ++i) |
|
|
3430 | av_push (av, SvREFCNT_inc_NN (ST (i))); |
1845 | |
3431 | |
1846 | invoke_av = (AV *)SvRV (invoke); |
3432 | if ((SV *)hv == &PL_sv_undef) |
1847 | len = av_len (invoke_av); |
|
|
1848 | |
|
|
1849 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1850 | |
|
|
1851 | if (len > 0) |
|
|
1852 | { |
3433 | { |
1853 | av_fill (defav, len - 1); |
3434 | PUSHMARK (SP); |
1854 | for (i = 0; i < len; ++i) |
3435 | EXTEND (SP, 2); |
1855 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
3436 | PUSHs (sv_Coro); |
|
|
3437 | PUSHs ((SV *)cv_pool_handler); |
|
|
3438 | PUTBACK; |
|
|
3439 | call_sv ((SV *)cv_coro_state_new, G_SCALAR); |
|
|
3440 | SPAGAIN; |
|
|
3441 | |
|
|
3442 | hv = (HV *)SvREFCNT_inc_NN (SvRV (POPs)); |
1856 | } |
3443 | } |
1857 | |
3444 | |
|
|
3445 | { |
|
|
3446 | struct coro *coro = SvSTATE_hv (hv); |
|
|
3447 | |
|
|
3448 | assert (!coro->invoke_cb); |
|
|
3449 | assert (!coro->invoke_av); |
|
|
3450 | coro->invoke_cb = SvREFCNT_inc (cb); |
|
|
3451 | coro->invoke_av = av; |
|
|
3452 | } |
|
|
3453 | |
|
|
3454 | api_ready (aTHX_ (SV *)hv); |
|
|
3455 | |
|
|
3456 | if (GIMME_V != G_VOID) |
|
|
3457 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)hv))); |
|
|
3458 | else |
1858 | SvREFCNT_dec (invoke); |
3459 | SvREFCNT_dec (hv); |
1859 | } |
3460 | } |
1860 | |
3461 | |
1861 | void |
3462 | SV * |
1862 | _pool_2 (SV *cb) |
3463 | rouse_cb () |
|
|
3464 | PROTOTYPE: |
1863 | CODE: |
3465 | CODE: |
1864 | { |
3466 | RETVAL = coro_new_rouse_cb (aTHX); |
1865 | struct coro *coro = SvSTATE (coro_current); |
|
|
1866 | |
|
|
1867 | sv_setsv (cb, &PL_sv_undef); |
|
|
1868 | |
|
|
1869 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1870 | coro->saved_deffh = 0; |
|
|
1871 | |
|
|
1872 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1873 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1874 | croak ("\3async_pool terminate\2\n"); |
|
|
1875 | |
|
|
1876 | av_clear (GvAV (PL_defgv)); |
|
|
1877 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1878 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1879 | |
|
|
1880 | coro->prio = 0; |
|
|
1881 | |
|
|
1882 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1883 | api_trace (coro_current, 0); |
|
|
1884 | |
|
|
1885 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1886 | } |
|
|
1887 | |
|
|
1888 | |
|
|
1889 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
1890 | |
|
|
1891 | SV * |
|
|
1892 | _get_state () |
|
|
1893 | CODE: |
|
|
1894 | { |
|
|
1895 | struct io_state *data; |
|
|
1896 | |
|
|
1897 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1898 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1899 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1900 | SvPOK_only (RETVAL); |
|
|
1901 | |
|
|
1902 | data->errorno = errno; |
|
|
1903 | data->laststype = PL_laststype; |
|
|
1904 | data->laststatval = PL_laststatval; |
|
|
1905 | data->statcache = PL_statcache; |
|
|
1906 | } |
|
|
1907 | OUTPUT: |
3467 | OUTPUT: |
1908 | RETVAL |
3468 | RETVAL |
1909 | |
3469 | |
1910 | void |
3470 | void |
1911 | _set_state (char *data_) |
3471 | rouse_wait (...) |
|
|
3472 | PROTOTYPE: ;$ |
|
|
3473 | PPCODE: |
|
|
3474 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
3475 | |
|
|
3476 | void |
|
|
3477 | on_enter (SV *block) |
|
|
3478 | ALIAS: |
|
|
3479 | on_leave = 1 |
1912 | PROTOTYPE: $ |
3480 | PROTOTYPE: & |
1913 | CODE: |
3481 | CODE: |
1914 | { |
3482 | { |
1915 | struct io_state *data = (void *)data_; |
3483 | struct coro *coro = SvSTATE_current; |
|
|
3484 | AV **avp = ix ? &coro->on_leave : &coro->on_enter; |
1916 | |
3485 | |
1917 | errno = data->errorno; |
3486 | block = (SV *)coro_sv_2cv (aTHX_ block); |
1918 | PL_laststype = data->laststype; |
|
|
1919 | PL_laststatval = data->laststatval; |
|
|
1920 | PL_statcache = data->statcache; |
|
|
1921 | } |
|
|
1922 | |
3487 | |
|
|
3488 | if (!*avp) |
|
|
3489 | *avp = newAV (); |
|
|
3490 | |
|
|
3491 | av_push (*avp, SvREFCNT_inc (block)); |
|
|
3492 | |
|
|
3493 | if (!ix) |
|
|
3494 | on_enterleave_call (aTHX_ block); |
|
|
3495 | |
|
|
3496 | LEAVE; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3497 | SAVEDESTRUCTOR_X (ix ? coro_pop_on_leave : coro_pop_on_enter, (void *)coro); |
|
|
3498 | ENTER; /* pp_entersub unfortunately forces an ENTER/LEAVE around XS calls */ |
|
|
3499 | } |
|
|
3500 | |
|
|
3501 | |
|
|
3502 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
3503 | |
|
|
3504 | BOOT: |
|
|
3505 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
3506 | |
|
|
3507 | |
|
|
3508 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
3509 | |
|
|
3510 | SV * |
|
|
3511 | new (SV *klass, SV *count = 0) |
|
|
3512 | CODE: |
|
|
3513 | { |
|
|
3514 | int semcnt = 1; |
|
|
3515 | |
|
|
3516 | if (count) |
|
|
3517 | { |
|
|
3518 | SvGETMAGIC (count); |
|
|
3519 | |
|
|
3520 | if (SvOK (count)) |
|
|
3521 | semcnt = SvIV (count); |
|
|
3522 | } |
|
|
3523 | |
|
|
3524 | RETVAL = sv_bless ( |
|
|
3525 | coro_waitarray_new (aTHX_ semcnt), |
|
|
3526 | GvSTASH (CvGV (cv)) |
|
|
3527 | ); |
|
|
3528 | } |
|
|
3529 | OUTPUT: |
|
|
3530 | RETVAL |
|
|
3531 | |
|
|
3532 | # helper for Coro::Channel and others |
|
|
3533 | SV * |
|
|
3534 | _alloc (int count) |
|
|
3535 | CODE: |
|
|
3536 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3537 | OUTPUT: |
|
|
3538 | RETVAL |
|
|
3539 | |
|
|
3540 | SV * |
|
|
3541 | count (SV *self) |
|
|
3542 | CODE: |
|
|
3543 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3544 | OUTPUT: |
|
|
3545 | RETVAL |
|
|
3546 | |
|
|
3547 | void |
|
|
3548 | up (SV *self, int adjust = 1) |
|
|
3549 | ALIAS: |
|
|
3550 | adjust = 1 |
|
|
3551 | CODE: |
|
|
3552 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
3553 | |
|
|
3554 | void |
|
|
3555 | down (...) |
|
|
3556 | CODE: |
|
|
3557 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3558 | |
|
|
3559 | void |
|
|
3560 | wait (...) |
|
|
3561 | CODE: |
|
|
3562 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3563 | |
|
|
3564 | void |
|
|
3565 | try (SV *self) |
|
|
3566 | PPCODE: |
|
|
3567 | { |
|
|
3568 | AV *av = (AV *)SvRV (self); |
|
|
3569 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3570 | IV count = SvIVX (count_sv); |
|
|
3571 | |
|
|
3572 | if (count > 0) |
|
|
3573 | { |
|
|
3574 | --count; |
|
|
3575 | SvIVX (count_sv) = count; |
|
|
3576 | XSRETURN_YES; |
|
|
3577 | } |
|
|
3578 | else |
|
|
3579 | XSRETURN_NO; |
|
|
3580 | } |
|
|
3581 | |
|
|
3582 | void |
|
|
3583 | waiters (SV *self) |
|
|
3584 | PPCODE: |
|
|
3585 | { |
|
|
3586 | AV *av = (AV *)SvRV (self); |
|
|
3587 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3588 | |
|
|
3589 | if (GIMME_V == G_SCALAR) |
|
|
3590 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
3591 | else |
|
|
3592 | { |
|
|
3593 | int i; |
|
|
3594 | EXTEND (SP, wcount); |
|
|
3595 | for (i = 1; i <= wcount; ++i) |
|
|
3596 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
3597 | } |
|
|
3598 | } |
|
|
3599 | |
|
|
3600 | MODULE = Coro::State PACKAGE = Coro::SemaphoreSet |
|
|
3601 | |
|
|
3602 | void |
|
|
3603 | _may_delete (SV *sem, int count, int extra_refs) |
|
|
3604 | PPCODE: |
|
|
3605 | { |
|
|
3606 | AV *av = (AV *)SvRV (sem); |
|
|
3607 | |
|
|
3608 | if (SvREFCNT ((SV *)av) == 1 + extra_refs |
|
|
3609 | && AvFILLp (av) == 0 /* no waiters, just count */ |
|
|
3610 | && SvIV (AvARRAY (av)[0]) == count) |
|
|
3611 | XSRETURN_YES; |
|
|
3612 | |
|
|
3613 | XSRETURN_NO; |
|
|
3614 | } |
|
|
3615 | |
|
|
3616 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3617 | |
|
|
3618 | SV * |
|
|
3619 | new (SV *klass) |
|
|
3620 | CODE: |
|
|
3621 | RETVAL = sv_bless ( |
|
|
3622 | coro_waitarray_new (aTHX_ 0), |
|
|
3623 | GvSTASH (CvGV (cv)) |
|
|
3624 | ); |
|
|
3625 | OUTPUT: |
|
|
3626 | RETVAL |
|
|
3627 | |
|
|
3628 | void |
|
|
3629 | wait (...) |
|
|
3630 | CODE: |
|
|
3631 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3632 | |
|
|
3633 | void |
|
|
3634 | broadcast (SV *self) |
|
|
3635 | CODE: |
|
|
3636 | { |
|
|
3637 | AV *av = (AV *)SvRV (self); |
|
|
3638 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3639 | } |
|
|
3640 | |
|
|
3641 | void |
|
|
3642 | send (SV *self) |
|
|
3643 | CODE: |
|
|
3644 | { |
|
|
3645 | AV *av = (AV *)SvRV (self); |
|
|
3646 | |
|
|
3647 | if (AvFILLp (av)) |
|
|
3648 | coro_signal_wake (aTHX_ av, 1); |
|
|
3649 | else |
|
|
3650 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
3651 | } |
|
|
3652 | |
|
|
3653 | IV |
|
|
3654 | awaited (SV *self) |
|
|
3655 | CODE: |
|
|
3656 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3657 | OUTPUT: |
|
|
3658 | RETVAL |
|
|
3659 | |
|
|
3660 | |
|
|
3661 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
3662 | |
|
|
3663 | BOOT: |
|
|
3664 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
3665 | |
|
|
3666 | void |
|
|
3667 | _schedule (...) |
|
|
3668 | CODE: |
|
|
3669 | { |
|
|
3670 | static int incede; |
|
|
3671 | |
|
|
3672 | api_cede_notself (aTHX); |
|
|
3673 | |
|
|
3674 | ++incede; |
|
|
3675 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
3676 | ; |
|
|
3677 | |
|
|
3678 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
3679 | if (coro_nready >= incede) |
|
|
3680 | { |
|
|
3681 | PUSHMARK (SP); |
|
|
3682 | PUTBACK; |
|
|
3683 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3684 | } |
|
|
3685 | |
|
|
3686 | --incede; |
|
|
3687 | } |
|
|
3688 | |
|
|
3689 | |
|
|
3690 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
3691 | |
|
|
3692 | void |
|
|
3693 | _register (char *target, char *proto, SV *req) |
|
|
3694 | CODE: |
|
|
3695 | { |
|
|
3696 | CV *req_cv = coro_sv_2cv (aTHX_ req); |
|
|
3697 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3698 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3699 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3700 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3701 | } |
|
|
3702 | |