1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
2 | |
2 | |
3 | #define PERL_NO_GET_CONTEXT |
3 | #define PERL_NO_GET_CONTEXT |
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4 | #define PERL_EXT |
4 | |
5 | |
5 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
6 | #include "perl.h" |
7 | #include "perl.h" |
7 | #include "XSUB.h" |
8 | #include "XSUB.h" |
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9 | #include "perliol.h" |
8 | |
10 | |
9 | #include "patchlevel.h" |
11 | #include "patchlevel.h" |
10 | |
12 | |
11 | #include <stdio.h> |
13 | #include <stdio.h> |
12 | #include <errno.h> |
14 | #include <errno.h> |
13 | #include <assert.h> |
15 | #include <assert.h> |
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16 | |
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17 | #ifdef WIN32 |
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18 | # undef setjmp |
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19 | # undef longjmp |
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20 | # undef _exit |
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21 | # define setjmp _setjmp // deep magic, don't ask |
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22 | #else |
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23 | # include <inttypes.h> /* most portable stdint.h */ |
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24 | #endif |
14 | |
25 | |
15 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
16 | # include <unistd.h> |
27 | # include <unistd.h> |
17 | # include <sys/mman.h> |
28 | # include <sys/mman.h> |
18 | # ifndef MAP_ANONYMOUS |
29 | # ifndef MAP_ANONYMOUS |
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… | |
35 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
36 | #endif |
47 | #endif |
37 | |
48 | |
38 | #if CORO_USE_VALGRIND |
49 | #if CORO_USE_VALGRIND |
39 | # include <valgrind/valgrind.h> |
50 | # include <valgrind/valgrind.h> |
40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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41 | #else |
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42 | # define REGISTER_STACK(cctx,start,end) |
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43 | #endif |
51 | #endif |
44 | |
52 | |
45 | /* the maximum number of idle cctx that will be pooled */ |
53 | /* the maximum number of idle cctx that will be pooled */ |
46 | #define MAX_IDLE_CCTX 8 |
54 | static int cctx_max_idle = 4; |
47 | |
55 | |
48 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
49 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
50 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
51 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
… | |
… | |
70 | # ifndef IS_PADCONST |
78 | # ifndef IS_PADCONST |
71 | # define IS_PADCONST(v) 0 |
79 | # define IS_PADCONST(v) 0 |
72 | # endif |
80 | # endif |
73 | #endif |
81 | #endif |
74 | |
82 | |
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83 | /* 5.11 */ |
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84 | #ifndef CxHASARGS |
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85 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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86 | #endif |
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87 | |
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88 | /* 5.10.0 */ |
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89 | #ifndef SvREFCNT_inc_NN |
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90 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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91 | #endif |
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92 | |
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93 | /* 5.8.8 */ |
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94 | #ifndef GV_NOTQUAL |
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95 | # define GV_NOTQUAL 0 |
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96 | #endif |
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97 | #ifndef newSV |
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98 | # define newSV(l) NEWSV(0,l) |
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99 | #endif |
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100 | |
75 | /* 5.8.7 */ |
101 | /* 5.8.7 */ |
76 | #ifndef SvRV_set |
102 | #ifndef SvRV_set |
77 | # define SvRV_set(s,v) SvRV(s) = (v) |
103 | # define SvRV_set(s,v) SvRV(s) = (v) |
78 | #endif |
104 | #endif |
79 | |
105 | |
80 | /* 5.8.8 */ |
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81 | #ifndef GV_NOTQUAL |
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82 | # define GV_NOTQUAL 0 |
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83 | #endif |
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84 | #ifndef newSV |
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85 | # define newSV(l) NEWSV(0,l) |
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86 | #endif |
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87 | |
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88 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
106 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
89 | # undef CORO_STACKGUARD |
107 | # undef CORO_STACKGUARD |
90 | #endif |
108 | #endif |
91 | |
109 | |
92 | #ifndef CORO_STACKGUARD |
110 | #ifndef CORO_STACKGUARD |
… | |
… | |
98 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
99 | #endif |
117 | #endif |
100 | |
118 | |
101 | /* The next macros try to return the current stack pointer, in an as |
119 | /* The next macros try to return the current stack pointer, in an as |
102 | * portable way as possible. */ |
120 | * portable way as possible. */ |
103 | #define dSTACKLEVEL volatile char stacklevel |
121 | #if __GNUC__ >= 4 |
104 | #define STACKLEVEL ((void *)&stacklevel) |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
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123 | #else |
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124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
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125 | #endif |
105 | |
126 | |
106 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
107 | |
128 | |
108 | #if __GNUC__ >= 3 |
129 | #if __GNUC__ >= 3 |
109 | # define attribute(x) __attribute__(x) |
130 | # define attribute(x) __attribute__(x) |
110 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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111 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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132 | # define INLINE static inline |
112 | #else |
133 | #else |
113 | # define attribute(x) |
134 | # define attribute(x) |
114 | # define BARRIER |
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115 | # define expect(expr,value) (expr) |
135 | # define expect(expr,value) (expr) |
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136 | # define INLINE static |
116 | #endif |
137 | #endif |
117 | |
138 | |
118 | #define expect_false(expr) expect ((expr) != 0, 0) |
139 | #define expect_false(expr) expect ((expr) != 0, 0) |
119 | #define expect_true(expr) expect ((expr) != 0, 1) |
140 | #define expect_true(expr) expect ((expr) != 0, 1) |
120 | |
141 | |
121 | #define NOINLINE attribute ((noinline)) |
142 | #define NOINLINE attribute ((noinline)) |
122 | |
143 | |
123 | #include "CoroAPI.h" |
144 | #include "CoroAPI.h" |
124 | |
145 | |
125 | #ifdef USE_ITHREADS |
146 | #ifdef USE_ITHREADS |
126 | static perl_mutex coro_mutex; |
147 | # if CORO_PTHREAD |
127 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
148 | static void *coro_thx; |
128 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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129 | #else |
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130 | # define LOCK (void)0 |
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131 | # define UNLOCK (void)0 |
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132 | #endif |
149 | # endif |
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150 | #endif |
133 | |
151 | |
134 | /* helper storage struct for Coro::AIO */ |
152 | static double (*nvtime)(); /* so why doesn't it take void? */ |
135 | struct io_state |
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136 | { |
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137 | int errorno; |
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138 | I32 laststype; |
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139 | int laststatval; |
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140 | Stat_t statcache; |
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141 | }; |
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142 | |
153 | |
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154 | static U32 cctx_gen; |
143 | static size_t coro_stacksize = CORO_STACKSIZE; |
155 | static size_t cctx_stacksize = CORO_STACKSIZE; |
144 | static struct CoroAPI coroapi; |
156 | static struct CoroAPI coroapi; |
145 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
157 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
146 | static JMPENV *main_top_env; |
158 | static JMPENV *main_top_env; |
147 | static HV *coro_state_stash, *coro_stash; |
159 | static HV *coro_state_stash, *coro_stash; |
148 | static SV *coro_mortal; /* will be freed after next transfer */ |
160 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
149 | |
161 | |
150 | static GV *irsgv; /* $/ */ |
162 | static GV *irsgv; /* $/ */ |
151 | static GV *stdoutgv; /* *STDOUT */ |
163 | static GV *stdoutgv; /* *STDOUT */ |
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164 | static SV *rv_diehook; |
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165 | static SV *rv_warnhook; |
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166 | static HV *hv_sig; /* %SIG */ |
152 | |
167 | |
153 | /* async_pool helper stuff */ |
168 | /* async_pool helper stuff */ |
154 | static SV *sv_pool_rss; |
169 | static SV *sv_pool_rss; |
155 | static SV *sv_pool_size; |
170 | static SV *sv_pool_size; |
156 | static AV *av_async_pool; |
171 | static AV *av_async_pool; |
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172 | |
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173 | /* Coro::AnyEvent */ |
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174 | static SV *sv_activity; |
157 | |
175 | |
158 | static struct coro_cctx *cctx_first; |
176 | static struct coro_cctx *cctx_first; |
159 | static int cctx_count, cctx_idle; |
177 | static int cctx_count, cctx_idle; |
160 | |
178 | |
161 | enum { |
179 | enum { |
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166 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
184 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
167 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
185 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
168 | }; |
186 | }; |
169 | |
187 | |
170 | /* this is a structure representing a c-level coroutine */ |
188 | /* this is a structure representing a c-level coroutine */ |
171 | typedef struct coro_cctx { |
189 | typedef struct coro_cctx |
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190 | { |
172 | struct coro_cctx *next; |
191 | struct coro_cctx *next; |
173 | |
192 | |
174 | /* the stack */ |
193 | /* the stack */ |
175 | void *sptr; |
194 | void *sptr; |
176 | size_t ssize; |
195 | size_t ssize; |
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179 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
198 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
180 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
199 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
181 | JMPENV *top_env; |
200 | JMPENV *top_env; |
182 | coro_context cctx; |
201 | coro_context cctx; |
183 | |
202 | |
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203 | U32 gen; |
184 | #if CORO_USE_VALGRIND |
204 | #if CORO_USE_VALGRIND |
185 | int valgrind_id; |
205 | int valgrind_id; |
186 | #endif |
206 | #endif |
187 | unsigned char flags; |
207 | unsigned char flags; |
188 | } coro_cctx; |
208 | } coro_cctx; |
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192 | CF_READY = 0x0002, /* coroutine is ready */ |
212 | CF_READY = 0x0002, /* coroutine is ready */ |
193 | CF_NEW = 0x0004, /* has never been switched to */ |
213 | CF_NEW = 0x0004, /* has never been switched to */ |
194 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
214 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
195 | }; |
215 | }; |
196 | |
216 | |
197 | /* this is a structure representing a perl-level coroutine */ |
217 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
198 | struct coro { |
218 | typedef struct |
199 | /* the c coroutine allocated to this perl coroutine, if any */ |
219 | { |
200 | coro_cctx *cctx; |
220 | SV *defsv; |
201 | |
221 | AV *defav; |
202 | /* data associated with this coroutine (initial args) */ |
222 | SV *errsv; |
203 | AV *args; |
223 | SV *irsgv; |
204 | int refcnt; |
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205 | int flags; /* CF_ flags */ |
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206 | |
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207 | /* optionally saved, might be zero */ |
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208 | AV *defav; /* @_ */ |
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209 | SV *defsv; /* $_ */ |
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210 | SV *errsv; /* $@ */ |
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211 | SV *deffh; /* default filehandle */ |
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212 | SV *irssv; /* $/ */ |
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213 | SV *irssv_sv; /* real $/ cache */ |
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214 | |
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215 | #define VAR(name,type) type name; |
224 | #define VAR(name,type) type name; |
216 | # include "state.h" |
225 | # include "state.h" |
217 | #undef VAR |
226 | #undef VAR |
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227 | } perl_slots; |
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228 | |
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229 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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230 | |
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231 | /* this is a structure representing a perl-level coroutine */ |
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232 | struct coro { |
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233 | /* the C coroutine allocated to this perl coroutine, if any */ |
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234 | coro_cctx *cctx; |
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235 | |
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236 | /* state data */ |
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237 | struct CoroSLF slf_frame; /* saved slf frame */ |
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238 | AV *mainstack; |
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239 | perl_slots *slot; /* basically the saved sp */ |
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240 | |
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241 | AV *args; /* data associated with this coroutine (initial args) */ |
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242 | int refcnt; /* coroutines are refcounted, yes */ |
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243 | int flags; /* CF_ flags */ |
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244 | HV *hv; /* the perl hash associated with this coro, if any */ |
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245 | void (*on_destroy)(pTHX_ struct coro *coro); |
218 | |
246 | |
219 | /* statistics */ |
247 | /* statistics */ |
220 | int usecount; /* number of transfers to this coro */ |
248 | int usecount; /* number of transfers to this coro */ |
221 | |
249 | |
222 | /* coro process data */ |
250 | /* coro process data */ |
223 | int prio; |
251 | int prio; |
224 | //SV *throw; |
252 | SV *throw; /* exception to be thrown */ |
225 | |
253 | |
226 | /* async_pool */ |
254 | /* async_pool */ |
227 | SV *saved_deffh; |
255 | SV *saved_deffh; |
228 | |
256 | |
229 | /* linked list */ |
257 | /* linked list */ |
230 | struct coro *next, *prev; |
258 | struct coro *next, *prev; |
231 | HV *hv; /* the perl hash associated with this coro, if any */ |
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232 | }; |
259 | }; |
233 | |
260 | |
234 | typedef struct coro *Coro__State; |
261 | typedef struct coro *Coro__State; |
235 | typedef struct coro *Coro__State_or_hashref; |
262 | typedef struct coro *Coro__State_or_hashref; |
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263 | |
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264 | /* the following variables are effectively part of the perl context */ |
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265 | /* and get copied between struct coro and these variables */ |
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266 | /* the mainr easonw e don't support windows process emulation */ |
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267 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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268 | static SV *coro_throw; |
236 | |
269 | |
237 | /** Coro ********************************************************************/ |
270 | /** Coro ********************************************************************/ |
238 | |
271 | |
239 | #define PRIO_MAX 3 |
272 | #define PRIO_MAX 3 |
240 | #define PRIO_HIGH 1 |
273 | #define PRIO_HIGH 1 |
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243 | #define PRIO_IDLE -3 |
276 | #define PRIO_IDLE -3 |
244 | #define PRIO_MIN -4 |
277 | #define PRIO_MIN -4 |
245 | |
278 | |
246 | /* for Coro.pm */ |
279 | /* for Coro.pm */ |
247 | static SV *coro_current; |
280 | static SV *coro_current; |
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281 | static SV *coro_readyhook; |
248 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
282 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
249 | static int coro_nready; |
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250 | static struct coro *coro_first; |
283 | static struct coro *coro_first; |
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284 | #define coro_nready coroapi.nready |
251 | |
285 | |
252 | /** lowlevel stuff **********************************************************/ |
286 | /** lowlevel stuff **********************************************************/ |
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287 | |
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288 | static SV * |
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289 | coro_get_sv (pTHX_ const char *name, int create) |
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290 | { |
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291 | #if PERL_VERSION_ATLEAST (5,10,0) |
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292 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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293 | get_sv (name, create); |
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294 | #endif |
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295 | return get_sv (name, create); |
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296 | } |
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297 | |
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298 | static AV * |
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299 | coro_get_av (pTHX_ const char *name, int create) |
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300 | { |
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301 | #if PERL_VERSION_ATLEAST (5,10,0) |
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302 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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303 | get_av (name, create); |
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304 | #endif |
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305 | return get_av (name, create); |
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306 | } |
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307 | |
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308 | static HV * |
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309 | coro_get_hv (pTHX_ const char *name, int create) |
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310 | { |
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311 | #if PERL_VERSION_ATLEAST (5,10,0) |
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312 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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313 | get_hv (name, create); |
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314 | #endif |
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315 | return get_hv (name, create); |
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316 | } |
253 | |
317 | |
254 | static AV * |
318 | static AV * |
255 | coro_clone_padlist (pTHX_ CV *cv) |
319 | coro_clone_padlist (pTHX_ CV *cv) |
256 | { |
320 | { |
257 | AV *padlist = CvPADLIST (cv); |
321 | AV *padlist = CvPADLIST (cv); |
258 | AV *newpadlist, *newpad; |
322 | AV *newpadlist, *newpad; |
259 | |
323 | |
260 | newpadlist = newAV (); |
324 | newpadlist = newAV (); |
261 | AvREAL_off (newpadlist); |
325 | AvREAL_off (newpadlist); |
262 | #if PERL_VERSION_ATLEAST (5,9,0) |
326 | #if PERL_VERSION_ATLEAST (5,10,0) |
263 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
327 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
264 | #else |
328 | #else |
265 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
329 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
266 | #endif |
330 | #endif |
267 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
331 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
268 | --AvFILLp (padlist); |
332 | --AvFILLp (padlist); |
269 | |
333 | |
270 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
334 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
271 | av_store (newpadlist, 1, (SV *)newpad); |
335 | av_store (newpadlist, 1, (SV *)newpad); |
272 | |
336 | |
273 | return newpadlist; |
337 | return newpadlist; |
274 | } |
338 | } |
275 | |
339 | |
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305 | |
369 | |
306 | /* casting is fun. */ |
370 | /* casting is fun. */ |
307 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
371 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
308 | free_padlist (aTHX_ padlist); |
372 | free_padlist (aTHX_ padlist); |
309 | |
373 | |
310 | SvREFCNT_dec (av); |
374 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
311 | |
375 | |
312 | return 0; |
376 | return 0; |
313 | } |
377 | } |
314 | |
378 | |
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379 | #define CORO_MAGIC_type_cv 26 |
315 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
380 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
316 | |
381 | |
317 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
382 | static MGVTBL coro_cv_vtbl = { |
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383 | 0, 0, 0, 0, |
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384 | coro_cv_free |
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385 | }; |
318 | |
386 | |
319 | #define CORO_MAGIC(cv) \ |
387 | #define CORO_MAGIC_NN(sv, type) \ |
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388 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
320 | SvMAGIC (cv) \ |
389 | ? SvMAGIC (sv) \ |
321 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
390 | : mg_find (sv, type)) |
322 | ? SvMAGIC (cv) \ |
391 | |
323 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
392 | #define CORO_MAGIC(sv, type) \ |
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393 | (expect_true (SvMAGIC (sv)) \ |
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394 | ? CORO_MAGIC_NN (sv, type) \ |
324 | : 0 |
395 | : 0) |
325 | |
396 | |
326 | static struct coro * |
397 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
|
|
398 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
399 | |
|
|
400 | INLINE struct coro * |
327 | SvSTATE_ (pTHX_ SV *coro) |
401 | SvSTATE_ (pTHX_ SV *coro) |
328 | { |
402 | { |
329 | HV *stash; |
403 | HV *stash; |
330 | MAGIC *mg; |
404 | MAGIC *mg; |
331 | |
405 | |
… | |
… | |
341 | /* very slow, but rare, check */ |
415 | /* very slow, but rare, check */ |
342 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
416 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
343 | croak ("Coro::State object required"); |
417 | croak ("Coro::State object required"); |
344 | } |
418 | } |
345 | |
419 | |
346 | mg = CORO_MAGIC (coro); |
420 | mg = CORO_MAGIC_state (coro); |
347 | return (struct coro *)mg->mg_ptr; |
421 | return (struct coro *)mg->mg_ptr; |
348 | } |
422 | } |
349 | |
423 | |
350 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
424 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
351 | |
425 | |
|
|
426 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
427 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
428 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
429 | |
352 | /* the next two functions merely cache the padlists */ |
430 | /* the next two functions merely cache the padlists */ |
353 | static void |
431 | static void |
354 | get_padlist (pTHX_ CV *cv) |
432 | get_padlist (pTHX_ CV *cv) |
355 | { |
433 | { |
356 | MAGIC *mg = CORO_MAGIC (cv); |
434 | MAGIC *mg = CORO_MAGIC_cv (cv); |
357 | AV *av; |
435 | AV *av; |
358 | |
436 | |
359 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
437 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
360 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
438 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
361 | else |
439 | else |
362 | { |
440 | { |
363 | #if CORO_PREFER_PERL_FUNCTIONS |
441 | #if CORO_PREFER_PERL_FUNCTIONS |
364 | /* this is probably cleaner, but also slower? */ |
442 | /* this is probably cleaner? but also slower! */ |
|
|
443 | /* in practise, it seems to be less stable */ |
365 | CV *cp = Perl_cv_clone (cv); |
444 | CV *cp = Perl_cv_clone (cv); |
366 | CvPADLIST (cv) = CvPADLIST (cp); |
445 | CvPADLIST (cv) = CvPADLIST (cp); |
367 | CvPADLIST (cp) = 0; |
446 | CvPADLIST (cp) = 0; |
368 | SvREFCNT_dec (cp); |
447 | SvREFCNT_dec (cp); |
369 | #else |
448 | #else |
… | |
… | |
373 | } |
452 | } |
374 | |
453 | |
375 | static void |
454 | static void |
376 | put_padlist (pTHX_ CV *cv) |
455 | put_padlist (pTHX_ CV *cv) |
377 | { |
456 | { |
378 | MAGIC *mg = CORO_MAGIC (cv); |
457 | MAGIC *mg = CORO_MAGIC_cv (cv); |
379 | AV *av; |
458 | AV *av; |
380 | |
459 | |
381 | if (expect_false (!mg)) |
460 | if (expect_false (!mg)) |
382 | { |
461 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
383 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
384 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
385 | mg->mg_virtual = &vtbl_coro; |
|
|
386 | mg->mg_obj = (SV *)newAV (); |
|
|
387 | } |
|
|
388 | |
462 | |
389 | av = (AV *)mg->mg_obj; |
463 | av = (AV *)mg->mg_obj; |
390 | |
464 | |
391 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
465 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
392 | av_extend (av, AvMAX (av) + 1); |
466 | av_extend (av, AvMAX (av) + 1); |
… | |
… | |
397 | /** load & save, init *******************************************************/ |
471 | /** load & save, init *******************************************************/ |
398 | |
472 | |
399 | static void |
473 | static void |
400 | load_perl (pTHX_ Coro__State c) |
474 | load_perl (pTHX_ Coro__State c) |
401 | { |
475 | { |
|
|
476 | perl_slots *slot = c->slot; |
|
|
477 | c->slot = 0; |
|
|
478 | |
|
|
479 | PL_mainstack = c->mainstack; |
|
|
480 | |
|
|
481 | GvSV (PL_defgv) = slot->defsv; |
|
|
482 | GvAV (PL_defgv) = slot->defav; |
|
|
483 | GvSV (PL_errgv) = slot->errsv; |
|
|
484 | GvSV (irsgv) = slot->irsgv; |
|
|
485 | |
402 | #define VAR(name,type) PL_ ## name = c->name; |
486 | #define VAR(name,type) PL_ ## name = slot->name; |
403 | # include "state.h" |
487 | # include "state.h" |
404 | #undef VAR |
488 | #undef VAR |
405 | |
|
|
406 | GvSV (PL_defgv) = c->defsv; |
|
|
407 | GvAV (PL_defgv) = c->defav; |
|
|
408 | GvSV (PL_errgv) = c->errsv; |
|
|
409 | GvSV (irsgv) = c->irssv_sv; |
|
|
410 | |
489 | |
411 | { |
490 | { |
412 | dSP; |
491 | dSP; |
|
|
492 | |
413 | CV *cv; |
493 | CV *cv; |
414 | |
494 | |
415 | /* now do the ugly restore mess */ |
495 | /* now do the ugly restore mess */ |
416 | while (expect_true (cv = (CV *)POPs)) |
496 | while (expect_true (cv = (CV *)POPs)) |
417 | { |
497 | { |
… | |
… | |
420 | CvPADLIST (cv) = (AV *)POPs; |
500 | CvPADLIST (cv) = (AV *)POPs; |
421 | } |
501 | } |
422 | |
502 | |
423 | PUTBACK; |
503 | PUTBACK; |
424 | } |
504 | } |
|
|
505 | |
|
|
506 | slf_frame = c->slf_frame; |
|
|
507 | coro_throw = c->throw; |
425 | } |
508 | } |
426 | |
509 | |
427 | static void |
510 | static void |
428 | save_perl (pTHX_ Coro__State c) |
511 | save_perl (pTHX_ Coro__State c) |
429 | { |
512 | { |
|
|
513 | c->throw = coro_throw; |
|
|
514 | c->slf_frame = slf_frame; |
|
|
515 | |
430 | { |
516 | { |
431 | dSP; |
517 | dSP; |
432 | I32 cxix = cxstack_ix; |
518 | I32 cxix = cxstack_ix; |
433 | PERL_CONTEXT *ccstk = cxstack; |
519 | PERL_CONTEXT *ccstk = cxstack; |
434 | PERL_SI *top_si = PL_curstackinfo; |
520 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
452 | |
538 | |
453 | if (expect_true (CvDEPTH (cv))) |
539 | if (expect_true (CvDEPTH (cv))) |
454 | { |
540 | { |
455 | EXTEND (SP, 3); |
541 | EXTEND (SP, 3); |
456 | PUSHs ((SV *)CvPADLIST (cv)); |
542 | PUSHs ((SV *)CvPADLIST (cv)); |
457 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
543 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
458 | PUSHs ((SV *)cv); |
544 | PUSHs ((SV *)cv); |
459 | |
545 | |
460 | CvDEPTH (cv) = 0; |
546 | CvDEPTH (cv) = 0; |
461 | get_padlist (aTHX_ cv); |
547 | get_padlist (aTHX_ cv); |
462 | } |
548 | } |
… | |
… | |
472 | } |
558 | } |
473 | |
559 | |
474 | PUTBACK; |
560 | PUTBACK; |
475 | } |
561 | } |
476 | |
562 | |
|
|
563 | /* allocate some space on the context stack for our purposes */ |
|
|
564 | /* we manually unroll here, as usually 2 slots is enough */ |
|
|
565 | if (SLOT_COUNT >= 1) CXINC; |
|
|
566 | if (SLOT_COUNT >= 2) CXINC; |
|
|
567 | if (SLOT_COUNT >= 3) CXINC; |
|
|
568 | { |
|
|
569 | int i; |
|
|
570 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
571 | CXINC; |
|
|
572 | } |
|
|
573 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
574 | |
|
|
575 | c->mainstack = PL_mainstack; |
|
|
576 | |
|
|
577 | { |
|
|
578 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
579 | |
477 | c->defav = GvAV (PL_defgv); |
580 | slot->defav = GvAV (PL_defgv); |
478 | c->defsv = DEFSV; |
581 | slot->defsv = DEFSV; |
479 | c->errsv = ERRSV; |
582 | slot->errsv = ERRSV; |
480 | c->irssv_sv = GvSV (irsgv); |
583 | slot->irsgv = GvSV (irsgv); |
481 | |
584 | |
482 | #define VAR(name,type)c->name = PL_ ## name; |
585 | #define VAR(name,type) slot->name = PL_ ## name; |
483 | # include "state.h" |
586 | # include "state.h" |
484 | #undef VAR |
587 | #undef VAR |
|
|
588 | } |
485 | } |
589 | } |
486 | |
590 | |
487 | /* |
591 | /* |
488 | * allocate various perl stacks. This is an exact copy |
592 | * allocate various perl stacks. This is almost an exact copy |
489 | * of perl.c:init_stacks, except that it uses less memory |
593 | * of perl.c:init_stacks, except that it uses less memory |
490 | * on the (sometimes correct) assumption that coroutines do |
594 | * on the (sometimes correct) assumption that coroutines do |
491 | * not usually need a lot of stackspace. |
595 | * not usually need a lot of stackspace. |
492 | */ |
596 | */ |
493 | #if CORO_PREFER_PERL_FUNCTIONS |
597 | #if CORO_PREFER_PERL_FUNCTIONS |
494 | # define coro_init_stacks init_stacks |
598 | # define coro_init_stacks init_stacks |
495 | #else |
599 | #else |
496 | static void |
600 | static void |
497 | coro_init_stacks (pTHX) |
601 | coro_init_stacks (pTHX) |
498 | { |
602 | { |
499 | PL_curstackinfo = new_stackinfo(64, 6); |
603 | PL_curstackinfo = new_stackinfo(32, 8); |
500 | PL_curstackinfo->si_type = PERLSI_MAIN; |
604 | PL_curstackinfo->si_type = PERLSI_MAIN; |
501 | PL_curstack = PL_curstackinfo->si_stack; |
605 | PL_curstack = PL_curstackinfo->si_stack; |
502 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
606 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
503 | |
607 | |
504 | PL_stack_base = AvARRAY(PL_curstack); |
608 | PL_stack_base = AvARRAY(PL_curstack); |
505 | PL_stack_sp = PL_stack_base; |
609 | PL_stack_sp = PL_stack_base; |
506 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
610 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
507 | |
611 | |
508 | New(50,PL_tmps_stack,64,SV*); |
612 | New(50,PL_tmps_stack,32,SV*); |
509 | PL_tmps_floor = -1; |
613 | PL_tmps_floor = -1; |
510 | PL_tmps_ix = -1; |
614 | PL_tmps_ix = -1; |
511 | PL_tmps_max = 64; |
615 | PL_tmps_max = 32; |
512 | |
616 | |
513 | New(54,PL_markstack,16,I32); |
617 | New(54,PL_markstack,16,I32); |
514 | PL_markstack_ptr = PL_markstack; |
618 | PL_markstack_ptr = PL_markstack; |
515 | PL_markstack_max = PL_markstack + 16; |
619 | PL_markstack_max = PL_markstack + 16; |
516 | |
620 | |
517 | #ifdef SET_MARK_OFFSET |
621 | #ifdef SET_MARK_OFFSET |
518 | SET_MARK_OFFSET; |
622 | SET_MARK_OFFSET; |
519 | #endif |
623 | #endif |
520 | |
624 | |
521 | New(54,PL_scopestack,16,I32); |
625 | New(54,PL_scopestack,8,I32); |
522 | PL_scopestack_ix = 0; |
626 | PL_scopestack_ix = 0; |
523 | PL_scopestack_max = 16; |
627 | PL_scopestack_max = 8; |
524 | |
628 | |
525 | New(54,PL_savestack,64,ANY); |
629 | New(54,PL_savestack,24,ANY); |
526 | PL_savestack_ix = 0; |
630 | PL_savestack_ix = 0; |
527 | PL_savestack_max = 64; |
631 | PL_savestack_max = 24; |
528 | |
632 | |
529 | #if !PERL_VERSION_ATLEAST (5,9,0) |
633 | #if !PERL_VERSION_ATLEAST (5,10,0) |
530 | New(54,PL_retstack,4,OP*); |
634 | New(54,PL_retstack,4,OP*); |
531 | PL_retstack_ix = 0; |
635 | PL_retstack_ix = 0; |
532 | PL_retstack_max = 4; |
636 | PL_retstack_max = 4; |
533 | #endif |
637 | #endif |
534 | } |
638 | } |
… | |
… | |
536 | |
640 | |
537 | /* |
641 | /* |
538 | * destroy the stacks, the callchain etc... |
642 | * destroy the stacks, the callchain etc... |
539 | */ |
643 | */ |
540 | static void |
644 | static void |
541 | coro_destroy_stacks (pTHX) |
645 | coro_destruct_stacks (pTHX) |
542 | { |
646 | { |
543 | while (PL_curstackinfo->si_next) |
647 | while (PL_curstackinfo->si_next) |
544 | PL_curstackinfo = PL_curstackinfo->si_next; |
648 | PL_curstackinfo = PL_curstackinfo->si_next; |
545 | |
649 | |
546 | while (PL_curstackinfo) |
650 | while (PL_curstackinfo) |
… | |
… | |
557 | |
661 | |
558 | Safefree (PL_tmps_stack); |
662 | Safefree (PL_tmps_stack); |
559 | Safefree (PL_markstack); |
663 | Safefree (PL_markstack); |
560 | Safefree (PL_scopestack); |
664 | Safefree (PL_scopestack); |
561 | Safefree (PL_savestack); |
665 | Safefree (PL_savestack); |
562 | #if !PERL_VERSION_ATLEAST (5,9,0) |
666 | #if !PERL_VERSION_ATLEAST (5,10,0) |
563 | Safefree (PL_retstack); |
667 | Safefree (PL_retstack); |
564 | #endif |
668 | #endif |
565 | } |
669 | } |
566 | |
670 | |
567 | static size_t |
671 | static size_t |
… | |
… | |
569 | { |
673 | { |
570 | size_t rss = sizeof (*coro); |
674 | size_t rss = sizeof (*coro); |
571 | |
675 | |
572 | if (coro->mainstack) |
676 | if (coro->mainstack) |
573 | { |
677 | { |
|
|
678 | perl_slots tmp_slot; |
|
|
679 | perl_slots *slot; |
|
|
680 | |
574 | if (coro->flags & CF_RUNNING) |
681 | if (coro->flags & CF_RUNNING) |
575 | { |
682 | { |
|
|
683 | slot = &tmp_slot; |
|
|
684 | |
576 | #define VAR(name,type)coro->name = PL_ ## name; |
685 | #define VAR(name,type) slot->name = PL_ ## name; |
577 | # include "state.h" |
686 | # include "state.h" |
578 | #undef VAR |
687 | #undef VAR |
579 | } |
688 | } |
|
|
689 | else |
|
|
690 | slot = coro->slot; |
580 | |
691 | |
|
|
692 | if (slot) |
|
|
693 | { |
581 | rss += sizeof (coro->curstackinfo); |
694 | rss += sizeof (slot->curstackinfo); |
582 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
583 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
695 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
584 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
696 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
585 | rss += coro->tmps_max * sizeof (SV *); |
697 | rss += slot->tmps_max * sizeof (SV *); |
586 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
698 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
587 | rss += coro->scopestack_max * sizeof (I32); |
699 | rss += slot->scopestack_max * sizeof (I32); |
588 | rss += coro->savestack_max * sizeof (ANY); |
700 | rss += slot->savestack_max * sizeof (ANY); |
589 | |
701 | |
590 | #if !PERL_VERSION_ATLEAST (5,9,0) |
702 | #if !PERL_VERSION_ATLEAST (5,10,0) |
591 | rss += coro->retstack_max * sizeof (OP *); |
703 | rss += slot->retstack_max * sizeof (OP *); |
592 | #endif |
704 | #endif |
|
|
705 | } |
593 | } |
706 | } |
594 | |
707 | |
595 | return rss; |
708 | return rss; |
596 | } |
709 | } |
597 | |
710 | |
598 | /** coroutine stack handling ************************************************/ |
711 | /** coroutine stack handling ************************************************/ |
599 | |
712 | |
|
|
713 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
714 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
715 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
716 | |
|
|
717 | /* apparently < 5.8.8 */ |
|
|
718 | #ifndef MgPV_nolen_const |
|
|
719 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
720 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
721 | (const char*)(mg)->mg_ptr) |
|
|
722 | #endif |
|
|
723 | |
|
|
724 | /* |
|
|
725 | * This overrides the default magic get method of %SIG elements. |
|
|
726 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
727 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
728 | * readback here. |
|
|
729 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
730 | * not expecting this to actually change the hook. This is a potential problem |
|
|
731 | * when a schedule happens then, but we ignore this. |
|
|
732 | */ |
600 | static void |
733 | static int |
|
|
734 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
735 | { |
|
|
736 | const char *s = MgPV_nolen_const (mg); |
|
|
737 | |
|
|
738 | if (*s == '_') |
|
|
739 | { |
|
|
740 | SV **svp = 0; |
|
|
741 | |
|
|
742 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
743 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
744 | |
|
|
745 | if (svp) |
|
|
746 | { |
|
|
747 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
748 | return 0; |
|
|
749 | } |
|
|
750 | } |
|
|
751 | |
|
|
752 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
753 | } |
|
|
754 | |
|
|
755 | static int |
|
|
756 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
757 | { |
|
|
758 | const char *s = MgPV_nolen_const (mg); |
|
|
759 | |
|
|
760 | if (*s == '_') |
|
|
761 | { |
|
|
762 | SV **svp = 0; |
|
|
763 | |
|
|
764 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
765 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
766 | |
|
|
767 | if (svp) |
|
|
768 | { |
|
|
769 | SV *old = *svp; |
|
|
770 | *svp = 0; |
|
|
771 | SvREFCNT_dec (old); |
|
|
772 | return 0; |
|
|
773 | } |
|
|
774 | } |
|
|
775 | |
|
|
776 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
777 | } |
|
|
778 | |
|
|
779 | static int |
|
|
780 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
781 | { |
|
|
782 | const char *s = MgPV_nolen_const (mg); |
|
|
783 | |
|
|
784 | if (*s == '_') |
|
|
785 | { |
|
|
786 | SV **svp = 0; |
|
|
787 | |
|
|
788 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
789 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
790 | |
|
|
791 | if (svp) |
|
|
792 | { |
|
|
793 | SV *old = *svp; |
|
|
794 | *svp = newSVsv (sv); |
|
|
795 | SvREFCNT_dec (old); |
|
|
796 | return 0; |
|
|
797 | } |
|
|
798 | } |
|
|
799 | |
|
|
800 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
801 | } |
|
|
802 | |
|
|
803 | static void |
|
|
804 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
805 | { |
|
|
806 | /* kind of mega-hacky, but works */ |
|
|
807 | ta->next = ta->prev = (struct coro *)ta; |
|
|
808 | } |
|
|
809 | |
|
|
810 | static int |
|
|
811 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
812 | { |
|
|
813 | return 0; |
|
|
814 | } |
|
|
815 | |
|
|
816 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
601 | coro_setup (pTHX_ struct coro *coro) |
817 | coro_setup (pTHX_ struct coro *coro) |
602 | { |
818 | { |
603 | /* |
819 | /* |
604 | * emulate part of the perl startup here. |
820 | * emulate part of the perl startup here. |
605 | */ |
821 | */ |
… | |
… | |
608 | PL_runops = RUNOPS_DEFAULT; |
824 | PL_runops = RUNOPS_DEFAULT; |
609 | PL_curcop = &PL_compiling; |
825 | PL_curcop = &PL_compiling; |
610 | PL_in_eval = EVAL_NULL; |
826 | PL_in_eval = EVAL_NULL; |
611 | PL_comppad = 0; |
827 | PL_comppad = 0; |
612 | PL_curpm = 0; |
828 | PL_curpm = 0; |
|
|
829 | PL_curpad = 0; |
613 | PL_localizing = 0; |
830 | PL_localizing = 0; |
614 | PL_dirty = 0; |
831 | PL_dirty = 0; |
615 | PL_restartop = 0; |
832 | PL_restartop = 0; |
|
|
833 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
834 | PL_parser = 0; |
|
|
835 | #endif |
|
|
836 | |
|
|
837 | /* recreate the die/warn hooks */ |
|
|
838 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
839 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
616 | |
840 | |
617 | GvSV (PL_defgv) = newSV (0); |
841 | GvSV (PL_defgv) = newSV (0); |
618 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
842 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
619 | GvSV (PL_errgv) = newSV (0); |
843 | GvSV (PL_errgv) = newSV (0); |
620 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
844 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
621 | PL_rs = newSVsv (GvSV (irsgv)); |
845 | PL_rs = newSVsv (GvSV (irsgv)); |
622 | PL_defoutgv = SvREFCNT_inc (stdoutgv); |
846 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
623 | |
|
|
624 | ENTER; /* necessary e.g. for dounwind */ |
|
|
625 | |
847 | |
626 | { |
848 | { |
627 | dSP; |
849 | dSP; |
628 | LOGOP myop; |
850 | UNOP myop; |
629 | |
851 | |
630 | Zero (&myop, 1, LOGOP); |
852 | Zero (&myop, 1, UNOP); |
631 | myop.op_next = Nullop; |
853 | myop.op_next = Nullop; |
632 | myop.op_flags = OPf_WANT_VOID; |
854 | myop.op_flags = OPf_WANT_VOID; |
633 | |
855 | |
634 | PUSHMARK (SP); |
856 | PUSHMARK (SP); |
635 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
857 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
636 | PUTBACK; |
858 | PUTBACK; |
637 | PL_op = (OP *)&myop; |
859 | PL_op = (OP *)&myop; |
638 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
860 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
639 | SPAGAIN; |
861 | SPAGAIN; |
640 | } |
862 | } |
641 | } |
|
|
642 | |
863 | |
|
|
864 | /* this newly created coroutine might be run on an existing cctx which most |
|
|
865 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
866 | */ |
|
|
867 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
868 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
|
|
869 | |
|
|
870 | coro_throw = coro->throw; |
|
|
871 | } |
|
|
872 | |
643 | static void |
873 | static void |
644 | coro_destroy (pTHX_ struct coro *coro) |
874 | coro_destruct (pTHX_ struct coro *coro) |
645 | { |
875 | { |
646 | if (!IN_DESTRUCT) |
876 | if (!IN_DESTRUCT) |
647 | { |
877 | { |
648 | /* restore all saved variables and stuff */ |
878 | /* restore all saved variables and stuff */ |
649 | LEAVE_SCOPE (0); |
879 | LEAVE_SCOPE (0); |
… | |
… | |
665 | SvREFCNT_dec (GvSV (PL_errgv)); |
895 | SvREFCNT_dec (GvSV (PL_errgv)); |
666 | SvREFCNT_dec (PL_defoutgv); |
896 | SvREFCNT_dec (PL_defoutgv); |
667 | SvREFCNT_dec (PL_rs); |
897 | SvREFCNT_dec (PL_rs); |
668 | SvREFCNT_dec (GvSV (irsgv)); |
898 | SvREFCNT_dec (GvSV (irsgv)); |
669 | |
899 | |
|
|
900 | SvREFCNT_dec (PL_diehook); |
|
|
901 | SvREFCNT_dec (PL_warnhook); |
|
|
902 | |
670 | SvREFCNT_dec (coro->saved_deffh); |
903 | SvREFCNT_dec (coro->saved_deffh); |
671 | //SvREFCNT_dec (coro->throw); |
904 | SvREFCNT_dec (coro_throw); |
672 | |
905 | |
673 | coro_destroy_stacks (aTHX); |
906 | coro_destruct_stacks (aTHX); |
674 | } |
907 | } |
675 | |
908 | |
676 | static void |
909 | INLINE void |
677 | free_coro_mortal (pTHX) |
910 | free_coro_mortal (pTHX) |
678 | { |
911 | { |
679 | if (expect_true (coro_mortal)) |
912 | if (expect_true (coro_mortal)) |
680 | { |
913 | { |
681 | SvREFCNT_dec (coro_mortal); |
914 | SvREFCNT_dec (coro_mortal); |
… | |
… | |
686 | static int |
919 | static int |
687 | runops_trace (pTHX) |
920 | runops_trace (pTHX) |
688 | { |
921 | { |
689 | COP *oldcop = 0; |
922 | COP *oldcop = 0; |
690 | int oldcxix = -2; |
923 | int oldcxix = -2; |
691 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
924 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
692 | coro_cctx *cctx = coro->cctx; |
925 | coro_cctx *cctx = coro->cctx; |
693 | |
926 | |
694 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
927 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
695 | { |
928 | { |
696 | PERL_ASYNC_CHECK (); |
929 | PERL_ASYNC_CHECK (); |
… | |
… | |
715 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
948 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
716 | : bot; |
949 | : bot; |
717 | |
950 | |
718 | av_extend (av, top - bot); |
951 | av_extend (av, top - bot); |
719 | while (bot < top) |
952 | while (bot < top) |
720 | av_push (av, SvREFCNT_inc (*bot++)); |
953 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
721 | |
954 | |
722 | PL_runops = RUNOPS_DEFAULT; |
955 | PL_runops = RUNOPS_DEFAULT; |
723 | ENTER; |
956 | ENTER; |
724 | SAVETMPS; |
957 | SAVETMPS; |
725 | EXTEND (SP, 3); |
958 | EXTEND (SP, 3); |
… | |
… | |
763 | SAVETMPS; |
996 | SAVETMPS; |
764 | EXTEND (SP, 3); |
997 | EXTEND (SP, 3); |
765 | PUSHMARK (SP); |
998 | PUSHMARK (SP); |
766 | PUSHs (&PL_sv_yes); |
999 | PUSHs (&PL_sv_yes); |
767 | PUSHs (fullname); |
1000 | PUSHs (fullname); |
768 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1001 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
769 | PUTBACK; |
1002 | PUTBACK; |
770 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1003 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
771 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1004 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
772 | SPAGAIN; |
1005 | SPAGAIN; |
773 | FREETMPS; |
1006 | FREETMPS; |
… | |
… | |
805 | |
1038 | |
806 | TAINT_NOT; |
1039 | TAINT_NOT; |
807 | return 0; |
1040 | return 0; |
808 | } |
1041 | } |
809 | |
1042 | |
|
|
1043 | static void |
|
|
1044 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
|
|
1045 | { |
|
|
1046 | ta->prev = (struct coro *)cctx; |
|
|
1047 | ta->next = 0; |
|
|
1048 | } |
|
|
1049 | |
810 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1050 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
811 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1051 | /* _cctx_init should be careful, as it could be called at almost any time */ |
812 | /* during execution of a perl program */ |
1052 | /* during execution of a perl program */ |
|
|
1053 | /* also initialises PL_top_env */ |
813 | static void NOINLINE |
1054 | static void NOINLINE |
814 | prepare_cctx (pTHX_ coro_cctx *cctx) |
1055 | cctx_prepare (pTHX_ coro_cctx *cctx) |
815 | { |
1056 | { |
816 | dSP; |
1057 | dSP; |
817 | LOGOP myop; |
1058 | UNOP myop; |
818 | |
1059 | |
819 | PL_top_env = &PL_start_env; |
1060 | PL_top_env = &PL_start_env; |
820 | |
1061 | |
821 | if (cctx->flags & CC_TRACE) |
1062 | if (cctx->flags & CC_TRACE) |
822 | PL_runops = runops_trace; |
1063 | PL_runops = runops_trace; |
823 | |
1064 | |
824 | Zero (&myop, 1, LOGOP); |
1065 | Zero (&myop, 1, UNOP); |
825 | myop.op_next = PL_op; |
1066 | myop.op_next = PL_op; |
826 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1067 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
827 | |
1068 | |
828 | PUSHMARK (SP); |
1069 | PUSHMARK (SP); |
829 | EXTEND (SP, 2); |
1070 | EXTEND (SP, 2); |
830 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1071 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
831 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1072 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
832 | PUTBACK; |
1073 | PUTBACK; |
833 | PL_op = (OP *)&myop; |
1074 | PL_op = (OP *)&myop; |
834 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1075 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
835 | SPAGAIN; |
1076 | SPAGAIN; |
836 | } |
1077 | } |
837 | |
1078 | |
|
|
1079 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1080 | INLINE void |
|
|
1081 | transfer_tail (pTHX) |
|
|
1082 | { |
|
|
1083 | free_coro_mortal (aTHX); |
|
|
1084 | } |
|
|
1085 | |
838 | /* |
1086 | /* |
839 | * this is a _very_ stripped down perl interpreter ;) |
1087 | * this is a _very_ stripped down perl interpreter ;) |
840 | */ |
1088 | */ |
841 | static void |
1089 | static void |
842 | coro_run (void *arg) |
1090 | cctx_run (void *arg) |
843 | { |
1091 | { |
|
|
1092 | #ifdef USE_ITHREADS |
|
|
1093 | # if CORO_PTHREAD |
|
|
1094 | PERL_SET_CONTEXT (coro_thx); |
|
|
1095 | # endif |
|
|
1096 | #endif |
|
|
1097 | { |
844 | dTHX; |
1098 | dTHX; |
845 | |
1099 | |
846 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1100 | /* normally we would need to skip the entersub here */ |
847 | UNLOCK; |
1101 | /* not doing so will re-execute it, which is exactly what we want */ |
848 | |
|
|
849 | /* we now skip the entersub that lead to transfer() */ |
|
|
850 | PL_op = PL_op->op_next; |
1102 | /* PL_nop = PL_nop->op_next */ |
851 | |
1103 | |
852 | /* inject a fake subroutine call to cctx_init */ |
1104 | /* inject a fake subroutine call to cctx_init */ |
853 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
1105 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
854 | |
1106 | |
|
|
1107 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1108 | transfer_tail (aTHX); |
|
|
1109 | |
855 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1110 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
856 | PL_restartop = PL_op; |
1111 | PL_restartop = PL_op; |
857 | perl_run (PL_curinterp); |
1112 | perl_run (PL_curinterp); |
858 | |
1113 | |
859 | /* |
1114 | /* |
860 | * If perl-run returns we assume exit() was being called or the coro |
1115 | * If perl-run returns we assume exit() was being called or the coro |
861 | * fell off the end, which seems to be the only valid (non-bug) |
1116 | * fell off the end, which seems to be the only valid (non-bug) |
862 | * reason for perl_run to return. We try to exit by jumping to the |
1117 | * reason for perl_run to return. We try to exit by jumping to the |
863 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1118 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
864 | * coroutine as Coro has no such concept |
1119 | * coroutine as Coro has no such concept |
865 | */ |
1120 | */ |
866 | PL_top_env = main_top_env; |
1121 | PL_top_env = main_top_env; |
867 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1122 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1123 | } |
868 | } |
1124 | } |
869 | |
1125 | |
870 | static coro_cctx * |
1126 | static coro_cctx * |
871 | cctx_new () |
1127 | cctx_new () |
872 | { |
1128 | { |
873 | coro_cctx *cctx; |
1129 | coro_cctx *cctx; |
|
|
1130 | |
|
|
1131 | ++cctx_count; |
|
|
1132 | New (0, cctx, 1, coro_cctx); |
|
|
1133 | |
|
|
1134 | cctx->gen = cctx_gen; |
|
|
1135 | cctx->flags = 0; |
|
|
1136 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1137 | |
|
|
1138 | return cctx; |
|
|
1139 | } |
|
|
1140 | |
|
|
1141 | /* create a new cctx only suitable as source */ |
|
|
1142 | static coro_cctx * |
|
|
1143 | cctx_new_empty () |
|
|
1144 | { |
|
|
1145 | coro_cctx *cctx = cctx_new (); |
|
|
1146 | |
|
|
1147 | cctx->sptr = 0; |
|
|
1148 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1149 | |
|
|
1150 | return cctx; |
|
|
1151 | } |
|
|
1152 | |
|
|
1153 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1154 | static coro_cctx * |
|
|
1155 | cctx_new_run () |
|
|
1156 | { |
|
|
1157 | coro_cctx *cctx = cctx_new (); |
874 | void *stack_start; |
1158 | void *stack_start; |
875 | size_t stack_size; |
1159 | size_t stack_size; |
876 | |
1160 | |
877 | ++cctx_count; |
|
|
878 | |
|
|
879 | Newz (0, cctx, 1, coro_cctx); |
|
|
880 | |
|
|
881 | #if HAVE_MMAP |
1161 | #if HAVE_MMAP |
882 | |
|
|
883 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1162 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
884 | /* mmap supposedly does allocate-on-write for us */ |
1163 | /* mmap supposedly does allocate-on-write for us */ |
885 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1164 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
886 | |
1165 | |
887 | if (cctx->sptr != (void *)-1) |
1166 | if (cctx->sptr != (void *)-1) |
888 | { |
1167 | { |
889 | # if CORO_STACKGUARD |
1168 | #if CORO_STACKGUARD |
890 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1169 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
891 | # endif |
1170 | #endif |
892 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1171 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
893 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1172 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
894 | cctx->flags |= CC_MAPPED; |
1173 | cctx->flags |= CC_MAPPED; |
895 | } |
1174 | } |
896 | else |
1175 | else |
897 | #endif |
1176 | #endif |
898 | { |
1177 | { |
899 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1178 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
900 | New (0, cctx->sptr, coro_stacksize, long); |
1179 | New (0, cctx->sptr, cctx_stacksize, long); |
901 | |
1180 | |
902 | if (!cctx->sptr) |
1181 | if (!cctx->sptr) |
903 | { |
1182 | { |
904 | perror ("FATAL: unable to allocate stack for coroutine"); |
1183 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
905 | _exit (EXIT_FAILURE); |
1184 | _exit (EXIT_FAILURE); |
906 | } |
1185 | } |
907 | |
1186 | |
908 | stack_start = cctx->sptr; |
1187 | stack_start = cctx->sptr; |
909 | stack_size = cctx->ssize; |
1188 | stack_size = cctx->ssize; |
910 | } |
1189 | } |
911 | |
1190 | |
912 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1191 | #if CORO_USE_VALGRIND |
|
|
1192 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1193 | #endif |
|
|
1194 | |
913 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
1195 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
914 | |
1196 | |
915 | return cctx; |
1197 | return cctx; |
916 | } |
1198 | } |
917 | |
1199 | |
918 | static void |
1200 | static void |
… | |
… | |
920 | { |
1202 | { |
921 | if (!cctx) |
1203 | if (!cctx) |
922 | return; |
1204 | return; |
923 | |
1205 | |
924 | --cctx_count; |
1206 | --cctx_count; |
|
|
1207 | coro_destroy (&cctx->cctx); |
925 | |
1208 | |
|
|
1209 | /* coro_transfer creates new, empty cctx's */ |
|
|
1210 | if (cctx->sptr) |
|
|
1211 | { |
926 | #if CORO_USE_VALGRIND |
1212 | #if CORO_USE_VALGRIND |
927 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1213 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
928 | #endif |
1214 | #endif |
929 | |
1215 | |
930 | #if HAVE_MMAP |
1216 | #if HAVE_MMAP |
931 | if (cctx->flags & CC_MAPPED) |
1217 | if (cctx->flags & CC_MAPPED) |
932 | munmap (cctx->sptr, cctx->ssize); |
1218 | munmap (cctx->sptr, cctx->ssize); |
933 | else |
1219 | else |
934 | #endif |
1220 | #endif |
935 | Safefree (cctx->sptr); |
1221 | Safefree (cctx->sptr); |
|
|
1222 | } |
936 | |
1223 | |
937 | Safefree (cctx); |
1224 | Safefree (cctx); |
938 | } |
1225 | } |
939 | |
1226 | |
940 | /* wether this cctx should be destructed */ |
1227 | /* wether this cctx should be destructed */ |
941 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
1228 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
942 | |
1229 | |
943 | static coro_cctx * |
1230 | static coro_cctx * |
944 | cctx_get (pTHX) |
1231 | cctx_get (pTHX) |
945 | { |
1232 | { |
946 | while (expect_true (cctx_first)) |
1233 | while (expect_true (cctx_first)) |
… | |
… | |
953 | return cctx; |
1240 | return cctx; |
954 | |
1241 | |
955 | cctx_destroy (cctx); |
1242 | cctx_destroy (cctx); |
956 | } |
1243 | } |
957 | |
1244 | |
958 | return cctx_new (); |
1245 | return cctx_new_run (); |
959 | } |
1246 | } |
960 | |
1247 | |
961 | static void |
1248 | static void |
962 | cctx_put (coro_cctx *cctx) |
1249 | cctx_put (coro_cctx *cctx) |
963 | { |
1250 | { |
|
|
1251 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1252 | |
964 | /* free another cctx if overlimit */ |
1253 | /* free another cctx if overlimit */ |
965 | if (expect_false (cctx_idle >= MAX_IDLE_CCTX)) |
1254 | if (expect_false (cctx_idle >= cctx_max_idle)) |
966 | { |
1255 | { |
967 | coro_cctx *first = cctx_first; |
1256 | coro_cctx *first = cctx_first; |
968 | cctx_first = first->next; |
1257 | cctx_first = first->next; |
969 | --cctx_idle; |
1258 | --cctx_idle; |
970 | |
1259 | |
… | |
… | |
979 | /** coroutine switching *****************************************************/ |
1268 | /** coroutine switching *****************************************************/ |
980 | |
1269 | |
981 | static void |
1270 | static void |
982 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1271 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
983 | { |
1272 | { |
|
|
1273 | /* TODO: throwing up here is considered harmful */ |
|
|
1274 | |
984 | if (expect_true (prev != next)) |
1275 | if (expect_true (prev != next)) |
985 | { |
1276 | { |
986 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1277 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
987 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1278 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
988 | |
1279 | |
989 | if (expect_false (next->flags & CF_RUNNING)) |
1280 | if (expect_false (next->flags & CF_RUNNING)) |
990 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1281 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
991 | |
1282 | |
992 | if (expect_false (next->flags & CF_DESTROYED)) |
1283 | if (expect_false (next->flags & CF_DESTROYED)) |
993 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1284 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
994 | |
1285 | |
|
|
1286 | #if !PERL_VERSION_ATLEAST (5,10,0) |
995 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1287 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
996 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
1288 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1289 | #endif |
997 | } |
1290 | } |
998 | } |
1291 | } |
999 | |
1292 | |
1000 | /* always use the TRANSFER macro */ |
1293 | /* always use the TRANSFER macro */ |
1001 | static void NOINLINE |
1294 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
1002 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1295 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1003 | { |
1296 | { |
1004 | dSTACKLEVEL; |
1297 | dSTACKLEVEL; |
1005 | |
1298 | |
1006 | /* sometimes transfer is only called to set idle_sp */ |
1299 | /* sometimes transfer is only called to set idle_sp */ |
1007 | if (expect_false (!next)) |
1300 | if (expect_false (!next)) |
1008 | { |
1301 | { |
1009 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1302 | ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; |
1010 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1303 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1011 | } |
1304 | } |
1012 | else if (expect_true (prev != next)) |
1305 | else if (expect_true (prev != next)) |
1013 | { |
1306 | { |
1014 | coro_cctx *prev__cctx; |
1307 | coro_cctx *prev__cctx; |
1015 | |
1308 | |
1016 | if (expect_false (prev->flags & CF_NEW)) |
1309 | if (expect_false (prev->flags & CF_NEW)) |
1017 | { |
1310 | { |
1018 | /* create a new empty context */ |
1311 | /* create a new empty/source context */ |
1019 | Newz (0, prev->cctx, 1, coro_cctx); |
1312 | prev->cctx = cctx_new_empty (); |
1020 | prev->flags &= ~CF_NEW; |
1313 | prev->flags &= ~CF_NEW; |
1021 | prev->flags |= CF_RUNNING; |
1314 | prev->flags |= CF_RUNNING; |
1022 | } |
1315 | } |
1023 | |
1316 | |
1024 | prev->flags &= ~CF_RUNNING; |
1317 | prev->flags &= ~CF_RUNNING; |
1025 | next->flags |= CF_RUNNING; |
1318 | next->flags |= CF_RUNNING; |
1026 | |
1319 | |
1027 | LOCK; |
1320 | /* first get rid of the old state */ |
|
|
1321 | save_perl (aTHX_ prev); |
1028 | |
1322 | |
1029 | if (expect_false (next->flags & CF_NEW)) |
1323 | if (expect_false (next->flags & CF_NEW)) |
1030 | { |
1324 | { |
1031 | /* need to start coroutine */ |
1325 | /* need to start coroutine */ |
1032 | next->flags &= ~CF_NEW; |
1326 | next->flags &= ~CF_NEW; |
1033 | /* first get rid of the old state */ |
|
|
1034 | save_perl (aTHX_ prev); |
|
|
1035 | /* setup coroutine call */ |
1327 | /* setup coroutine call */ |
1036 | coro_setup (aTHX_ next); |
1328 | coro_setup (aTHX_ next); |
1037 | } |
1329 | } |
1038 | else |
1330 | else |
|
|
1331 | load_perl (aTHX_ next); |
|
|
1332 | |
|
|
1333 | prev__cctx = prev->cctx; |
|
|
1334 | |
|
|
1335 | /* possibly untie and reuse the cctx */ |
|
|
1336 | if (expect_true ( |
|
|
1337 | prev__cctx->idle_sp == (void *)stacklevel |
|
|
1338 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1339 | && !force_cctx |
|
|
1340 | )) |
1039 | { |
1341 | { |
1040 | /* coroutine already started */ |
|
|
1041 | save_perl (aTHX_ prev); |
|
|
1042 | load_perl (aTHX_ next); |
|
|
1043 | } |
|
|
1044 | |
|
|
1045 | prev__cctx = prev->cctx; |
|
|
1046 | |
|
|
1047 | /* possibly "free" the cctx */ |
|
|
1048 | if (expect_true (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE))) |
|
|
1049 | { |
|
|
1050 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1342 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1051 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1343 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1052 | |
1344 | |
1053 | prev->cctx = 0; |
1345 | prev->cctx = 0; |
1054 | |
1346 | |
1055 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1347 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1056 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1348 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1057 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1349 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1350 | if (!next->cctx) |
1058 | next->cctx = cctx_get (aTHX); |
1351 | next->cctx = cctx_get (aTHX); |
1059 | |
1352 | |
1060 | cctx_put (prev__cctx); |
1353 | cctx_put (prev__cctx); |
1061 | } |
1354 | } |
1062 | |
1355 | |
1063 | ++next->usecount; |
1356 | ++next->usecount; |
… | |
… | |
1070 | prev__cctx->top_env = PL_top_env; |
1363 | prev__cctx->top_env = PL_top_env; |
1071 | PL_top_env = next->cctx->top_env; |
1364 | PL_top_env = next->cctx->top_env; |
1072 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1365 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1073 | } |
1366 | } |
1074 | |
1367 | |
1075 | free_coro_mortal (aTHX); |
1368 | transfer_tail (aTHX); |
1076 | UNLOCK; |
|
|
1077 | } |
1369 | } |
1078 | } |
1370 | } |
1079 | |
1371 | |
1080 | struct transfer_args |
|
|
1081 | { |
|
|
1082 | struct coro *prev, *next; |
|
|
1083 | }; |
|
|
1084 | |
|
|
1085 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1372 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1086 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1373 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1087 | |
1374 | |
1088 | /** high level stuff ********************************************************/ |
1375 | /** high level stuff ********************************************************/ |
1089 | |
1376 | |
1090 | static int |
1377 | static int |
1091 | coro_state_destroy (pTHX_ struct coro *coro) |
1378 | coro_state_destroy (pTHX_ struct coro *coro) |
1092 | { |
1379 | { |
1093 | if (coro->flags & CF_DESTROYED) |
1380 | if (coro->flags & CF_DESTROYED) |
1094 | return 0; |
1381 | return 0; |
|
|
1382 | |
|
|
1383 | if (coro->on_destroy) |
|
|
1384 | coro->on_destroy (aTHX_ coro); |
1095 | |
1385 | |
1096 | coro->flags |= CF_DESTROYED; |
1386 | coro->flags |= CF_DESTROYED; |
1097 | |
1387 | |
1098 | if (coro->flags & CF_READY) |
1388 | if (coro->flags & CF_READY) |
1099 | { |
1389 | { |
1100 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1390 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1101 | /* alternative: look through all ready queues and remove the coro */ |
1391 | /* alternative: look through all ready queues and remove the coro */ |
1102 | LOCK; |
|
|
1103 | --coro_nready; |
1392 | --coro_nready; |
1104 | UNLOCK; |
|
|
1105 | } |
1393 | } |
1106 | else |
1394 | else |
1107 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1395 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1108 | |
1396 | |
1109 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1397 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1110 | { |
1398 | { |
1111 | struct coro temp; |
1399 | struct coro temp; |
1112 | |
1400 | |
1113 | if (coro->flags & CF_RUNNING) |
1401 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1114 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1115 | |
1402 | |
1116 | save_perl (aTHX_ &temp); |
1403 | save_perl (aTHX_ &temp); |
1117 | load_perl (aTHX_ coro); |
1404 | load_perl (aTHX_ coro); |
1118 | |
1405 | |
1119 | coro_destroy (aTHX_ coro); |
1406 | coro_destruct (aTHX_ coro); |
1120 | |
1407 | |
1121 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
1408 | load_perl (aTHX_ &temp); |
1122 | |
1409 | |
1123 | coro->mainstack = 0; |
1410 | coro->slot = 0; |
1124 | } |
1411 | } |
1125 | |
1412 | |
1126 | cctx_destroy (coro->cctx); |
1413 | cctx_destroy (coro->cctx); |
1127 | SvREFCNT_dec (coro->args); |
1414 | SvREFCNT_dec (coro->args); |
1128 | |
1415 | |
… | |
… | |
1170 | # define MGf_DUP 0 |
1457 | # define MGf_DUP 0 |
1171 | #endif |
1458 | #endif |
1172 | }; |
1459 | }; |
1173 | |
1460 | |
1174 | static void |
1461 | static void |
1175 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1462 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1176 | { |
1463 | { |
1177 | ta->prev = SvSTATE (prev_sv); |
1464 | ta->prev = SvSTATE (prev_sv); |
1178 | ta->next = SvSTATE (next_sv); |
1465 | ta->next = SvSTATE (next_sv); |
1179 | TRANSFER_CHECK (*ta); |
1466 | TRANSFER_CHECK (*ta); |
1180 | } |
1467 | } |
1181 | |
1468 | |
1182 | static void |
1469 | static void |
1183 | api_transfer (SV *prev_sv, SV *next_sv) |
1470 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1184 | { |
1471 | { |
1185 | dTHX; |
|
|
1186 | struct transfer_args ta; |
1472 | struct coro_transfer_args ta; |
1187 | |
1473 | |
1188 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1474 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1189 | TRANSFER (ta); |
1475 | TRANSFER (ta, 1); |
1190 | } |
1476 | } |
1191 | |
1477 | |
1192 | /** Coro ********************************************************************/ |
1478 | /** Coro ********************************************************************/ |
1193 | |
1479 | |
1194 | static void |
1480 | INLINE void |
1195 | coro_enq (pTHX_ SV *coro_sv) |
1481 | coro_enq (pTHX_ struct coro *coro) |
1196 | { |
1482 | { |
1197 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1483 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1198 | } |
1484 | } |
1199 | |
1485 | |
1200 | static SV * |
1486 | INLINE SV * |
1201 | coro_deq (pTHX_ int min_prio) |
1487 | coro_deq (pTHX) |
1202 | { |
1488 | { |
1203 | int prio = PRIO_MAX - PRIO_MIN; |
1489 | int prio; |
1204 | |
1490 | |
1205 | min_prio -= PRIO_MIN; |
|
|
1206 | if (min_prio < 0) |
|
|
1207 | min_prio = 0; |
|
|
1208 | |
|
|
1209 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1491 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1210 | if (AvFILLp (coro_ready [prio]) >= 0) |
1492 | if (AvFILLp (coro_ready [prio]) >= 0) |
1211 | return av_shift (coro_ready [prio]); |
1493 | return av_shift (coro_ready [prio]); |
1212 | |
1494 | |
1213 | return 0; |
1495 | return 0; |
1214 | } |
1496 | } |
1215 | |
1497 | |
1216 | static int |
1498 | static int |
1217 | api_ready (SV *coro_sv) |
1499 | api_ready (pTHX_ SV *coro_sv) |
1218 | { |
1500 | { |
1219 | dTHX; |
|
|
1220 | struct coro *coro; |
1501 | struct coro *coro; |
|
|
1502 | SV *sv_hook; |
|
|
1503 | void (*xs_hook)(void); |
1221 | |
1504 | |
1222 | if (SvROK (coro_sv)) |
1505 | if (SvROK (coro_sv)) |
1223 | coro_sv = SvRV (coro_sv); |
1506 | coro_sv = SvRV (coro_sv); |
1224 | |
1507 | |
1225 | coro = SvSTATE (coro_sv); |
1508 | coro = SvSTATE (coro_sv); |
… | |
… | |
1227 | if (coro->flags & CF_READY) |
1510 | if (coro->flags & CF_READY) |
1228 | return 0; |
1511 | return 0; |
1229 | |
1512 | |
1230 | coro->flags |= CF_READY; |
1513 | coro->flags |= CF_READY; |
1231 | |
1514 | |
1232 | LOCK; |
1515 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1233 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1516 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1517 | |
|
|
1518 | coro_enq (aTHX_ coro); |
1234 | ++coro_nready; |
1519 | ++coro_nready; |
1235 | UNLOCK; |
1520 | |
|
|
1521 | if (sv_hook) |
|
|
1522 | { |
|
|
1523 | dSP; |
|
|
1524 | |
|
|
1525 | ENTER; |
|
|
1526 | SAVETMPS; |
|
|
1527 | |
|
|
1528 | PUSHMARK (SP); |
|
|
1529 | PUTBACK; |
|
|
1530 | call_sv (sv_hook, G_DISCARD); |
|
|
1531 | SPAGAIN; |
|
|
1532 | |
|
|
1533 | FREETMPS; |
|
|
1534 | LEAVE; |
|
|
1535 | } |
|
|
1536 | |
|
|
1537 | if (xs_hook) |
|
|
1538 | xs_hook (); |
1236 | |
1539 | |
1237 | return 1; |
1540 | return 1; |
1238 | } |
1541 | } |
1239 | |
1542 | |
1240 | static int |
1543 | static int |
1241 | api_is_ready (SV *coro_sv) |
1544 | api_is_ready (pTHX_ SV *coro_sv) |
1242 | { |
1545 | { |
1243 | dTHX; |
|
|
1244 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1546 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1245 | } |
1547 | } |
1246 | |
1548 | |
1247 | static void |
1549 | INLINE void |
1248 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1550 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1249 | { |
1551 | { |
1250 | SV *prev_sv, *next_sv; |
1552 | SV *prev_sv, *next_sv; |
1251 | |
1553 | |
1252 | for (;;) |
1554 | for (;;) |
1253 | { |
1555 | { |
1254 | LOCK; |
|
|
1255 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
1556 | next_sv = coro_deq (aTHX); |
1256 | |
1557 | |
1257 | /* nothing to schedule: call the idle handler */ |
1558 | /* nothing to schedule: call the idle handler */ |
1258 | if (expect_false (!next_sv)) |
1559 | if (expect_false (!next_sv)) |
1259 | { |
1560 | { |
1260 | dSP; |
1561 | dSP; |
1261 | UNLOCK; |
|
|
1262 | |
1562 | |
1263 | ENTER; |
1563 | ENTER; |
1264 | SAVETMPS; |
1564 | SAVETMPS; |
1265 | |
1565 | |
1266 | PUSHMARK (SP); |
1566 | PUSHMARK (SP); |
1267 | PUTBACK; |
1567 | PUTBACK; |
1268 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1568 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1569 | SPAGAIN; |
1269 | |
1570 | |
1270 | FREETMPS; |
1571 | FREETMPS; |
1271 | LEAVE; |
1572 | LEAVE; |
1272 | continue; |
1573 | continue; |
1273 | } |
1574 | } |
1274 | |
1575 | |
1275 | ta->next = SvSTATE (next_sv); |
1576 | ta->next = SvSTATE_hv (next_sv); |
1276 | |
1577 | |
1277 | /* cannot transfer to destroyed coros, skip and look for next */ |
1578 | /* cannot transfer to destroyed coros, skip and look for next */ |
1278 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1579 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1279 | { |
1580 | { |
1280 | UNLOCK; |
|
|
1281 | SvREFCNT_dec (next_sv); |
1581 | SvREFCNT_dec (next_sv); |
1282 | /* coro_nready is already taken care of by destroy */ |
1582 | /* coro_nready has already been taken care of by destroy */ |
1283 | continue; |
1583 | continue; |
1284 | } |
1584 | } |
1285 | |
1585 | |
1286 | --coro_nready; |
1586 | --coro_nready; |
1287 | UNLOCK; |
|
|
1288 | break; |
1587 | break; |
1289 | } |
1588 | } |
1290 | |
1589 | |
1291 | /* free this only after the transfer */ |
1590 | /* free this only after the transfer */ |
1292 | prev_sv = SvRV (coro_current); |
1591 | prev_sv = SvRV (coro_current); |
1293 | ta->prev = SvSTATE (prev_sv); |
1592 | ta->prev = SvSTATE_hv (prev_sv); |
1294 | TRANSFER_CHECK (*ta); |
1593 | TRANSFER_CHECK (*ta); |
1295 | assert (ta->next->flags & CF_READY); |
1594 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1296 | ta->next->flags &= ~CF_READY; |
1595 | ta->next->flags &= ~CF_READY; |
1297 | SvRV_set (coro_current, next_sv); |
1596 | SvRV_set (coro_current, next_sv); |
1298 | |
1597 | |
1299 | LOCK; |
|
|
1300 | free_coro_mortal (aTHX); |
1598 | free_coro_mortal (aTHX); |
1301 | coro_mortal = prev_sv; |
1599 | coro_mortal = prev_sv; |
1302 | UNLOCK; |
|
|
1303 | } |
1600 | } |
1304 | |
1601 | |
1305 | static void |
1602 | INLINE void |
1306 | prepare_cede (pTHX_ struct transfer_args *ta) |
1603 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1307 | { |
1604 | { |
1308 | api_ready (coro_current); |
1605 | api_ready (aTHX_ coro_current); |
1309 | prepare_schedule (aTHX_ ta); |
1606 | prepare_schedule (aTHX_ ta); |
1310 | } |
1607 | } |
1311 | |
1608 | |
|
|
1609 | INLINE void |
|
|
1610 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1611 | { |
|
|
1612 | SV *prev = SvRV (coro_current); |
|
|
1613 | |
|
|
1614 | if (coro_nready) |
|
|
1615 | { |
|
|
1616 | prepare_schedule (aTHX_ ta); |
|
|
1617 | api_ready (aTHX_ prev); |
|
|
1618 | } |
|
|
1619 | else |
|
|
1620 | prepare_nop (aTHX_ ta); |
|
|
1621 | } |
|
|
1622 | |
|
|
1623 | static void |
|
|
1624 | api_schedule (pTHX) |
|
|
1625 | { |
|
|
1626 | struct coro_transfer_args ta; |
|
|
1627 | |
|
|
1628 | prepare_schedule (aTHX_ &ta); |
|
|
1629 | TRANSFER (ta, 1); |
|
|
1630 | } |
|
|
1631 | |
1312 | static int |
1632 | static int |
1313 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1633 | api_cede (pTHX) |
1314 | { |
1634 | { |
1315 | if (coro_nready) |
1635 | struct coro_transfer_args ta; |
1316 | { |
1636 | |
1317 | SV *prev = SvRV (coro_current); |
|
|
1318 | prepare_schedule (aTHX_ ta); |
1637 | prepare_cede (aTHX_ &ta); |
1319 | api_ready (prev); |
1638 | |
|
|
1639 | if (expect_true (ta.prev != ta.next)) |
|
|
1640 | { |
|
|
1641 | TRANSFER (ta, 1); |
1320 | return 1; |
1642 | return 1; |
1321 | } |
1643 | } |
1322 | else |
1644 | else |
1323 | return 0; |
1645 | return 0; |
1324 | } |
1646 | } |
1325 | |
1647 | |
1326 | static void |
|
|
1327 | api_schedule (void) |
|
|
1328 | { |
|
|
1329 | dTHX; |
|
|
1330 | struct transfer_args ta; |
|
|
1331 | |
|
|
1332 | prepare_schedule (aTHX_ &ta); |
|
|
1333 | TRANSFER (ta); |
|
|
1334 | } |
|
|
1335 | |
|
|
1336 | static int |
1648 | static int |
1337 | api_cede (void) |
1649 | api_cede_notself (pTHX) |
1338 | { |
1650 | { |
1339 | dTHX; |
1651 | if (coro_nready) |
|
|
1652 | { |
1340 | struct transfer_args ta; |
1653 | struct coro_transfer_args ta; |
1341 | |
1654 | |
1342 | prepare_cede (aTHX_ &ta); |
1655 | prepare_cede_notself (aTHX_ &ta); |
1343 | |
|
|
1344 | if (expect_true (ta.prev != ta.next)) |
|
|
1345 | { |
|
|
1346 | TRANSFER (ta); |
1656 | TRANSFER (ta, 1); |
1347 | return 1; |
1657 | return 1; |
1348 | } |
1658 | } |
1349 | else |
1659 | else |
1350 | return 0; |
1660 | return 0; |
1351 | } |
1661 | } |
1352 | |
1662 | |
1353 | static int |
1663 | static void |
1354 | api_cede_notself (void) |
|
|
1355 | { |
|
|
1356 | dTHX; |
|
|
1357 | struct transfer_args ta; |
|
|
1358 | |
|
|
1359 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1360 | { |
|
|
1361 | TRANSFER (ta); |
|
|
1362 | return 1; |
|
|
1363 | } |
|
|
1364 | else |
|
|
1365 | return 0; |
|
|
1366 | } |
|
|
1367 | |
|
|
1368 | static void |
|
|
1369 | api_trace (SV *coro_sv, int flags) |
1664 | api_trace (pTHX_ SV *coro_sv, int flags) |
1370 | { |
1665 | { |
1371 | dTHX; |
|
|
1372 | struct coro *coro = SvSTATE (coro_sv); |
1666 | struct coro *coro = SvSTATE (coro_sv); |
1373 | |
1667 | |
1374 | if (flags & CC_TRACE) |
1668 | if (flags & CC_TRACE) |
1375 | { |
1669 | { |
1376 | if (!coro->cctx) |
1670 | if (!coro->cctx) |
1377 | coro->cctx = cctx_new (); |
1671 | coro->cctx = cctx_new_run (); |
1378 | else if (!(coro->cctx->flags & CC_TRACE)) |
1672 | else if (!(coro->cctx->flags & CC_TRACE)) |
1379 | croak ("cannot enable tracing on coroutine with custom stack"); |
1673 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1380 | |
1674 | |
1381 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1675 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1382 | } |
1676 | } |
1383 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1677 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1384 | { |
1678 | { |
1385 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1679 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1386 | |
1680 | |
1387 | if (coro->flags & CF_RUNNING) |
1681 | if (coro->flags & CF_RUNNING) |
1388 | PL_runops = RUNOPS_DEFAULT; |
1682 | PL_runops = RUNOPS_DEFAULT; |
1389 | else |
1683 | else |
1390 | coro->runops = RUNOPS_DEFAULT; |
1684 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1685 | } |
|
|
1686 | } |
|
|
1687 | |
|
|
1688 | /*****************************************************************************/ |
|
|
1689 | /* schedule-like-function opcode (SLF) */ |
|
|
1690 | |
|
|
1691 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1692 | static const CV *slf_cv; |
|
|
1693 | static SV **slf_argv; |
|
|
1694 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1695 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1696 | |
|
|
1697 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1698 | /* recreate the stack frame as perl will on following calls */ |
|
|
1699 | /* since entersub cleared the stack */ |
|
|
1700 | static OP * |
|
|
1701 | pp_restore (pTHX) |
|
|
1702 | { |
|
|
1703 | int i; |
|
|
1704 | SV **SP = PL_stack_base + slf_ax; |
|
|
1705 | |
|
|
1706 | PUSHMARK (SP); |
|
|
1707 | |
|
|
1708 | EXTEND (SP, slf_argc + 1); |
|
|
1709 | |
|
|
1710 | for (i = 0; i < slf_argc; ++i) |
|
|
1711 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1712 | |
|
|
1713 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1714 | |
|
|
1715 | RETURNOP (slf_restore.op_first); |
|
|
1716 | } |
|
|
1717 | |
|
|
1718 | static void |
|
|
1719 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1720 | { |
|
|
1721 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1722 | } |
|
|
1723 | |
|
|
1724 | static void |
|
|
1725 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1726 | { |
|
|
1727 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1728 | |
|
|
1729 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1730 | frame->check = slf_check_nop; |
|
|
1731 | frame->data = (void *)SvIV (arg [0]); |
|
|
1732 | } |
|
|
1733 | |
|
|
1734 | static void |
|
|
1735 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1736 | { |
|
|
1737 | SV **arg = (SV **)slf_frame.data; |
|
|
1738 | |
|
|
1739 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1740 | } |
|
|
1741 | |
|
|
1742 | static void |
|
|
1743 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1744 | { |
|
|
1745 | if (items != 2) |
|
|
1746 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1747 | |
|
|
1748 | frame->prepare = slf_prepare_transfer; |
|
|
1749 | frame->check = slf_check_nop; |
|
|
1750 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1751 | } |
|
|
1752 | |
|
|
1753 | static void |
|
|
1754 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1755 | { |
|
|
1756 | frame->prepare = prepare_schedule; |
|
|
1757 | frame->check = slf_check_nop; |
|
|
1758 | } |
|
|
1759 | |
|
|
1760 | static void |
|
|
1761 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1762 | { |
|
|
1763 | frame->prepare = prepare_cede; |
|
|
1764 | frame->check = slf_check_nop; |
|
|
1765 | } |
|
|
1766 | |
|
|
1767 | static void |
|
|
1768 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1769 | { |
|
|
1770 | frame->prepare = prepare_cede_notself; |
|
|
1771 | frame->check = slf_check_nop; |
|
|
1772 | } |
|
|
1773 | |
|
|
1774 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1775 | #define CVf_SLF 0x4000 |
|
|
1776 | |
|
|
1777 | /* |
|
|
1778 | * these not obviously related functions are all rolled into one |
|
|
1779 | * function to increase chances that they all will call transfer with the same |
|
|
1780 | * stack offset |
|
|
1781 | * SLF stands for "schedule-like-function". |
|
|
1782 | */ |
|
|
1783 | static OP * |
|
|
1784 | pp_slf (pTHX) |
|
|
1785 | { |
|
|
1786 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1787 | |
|
|
1788 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1789 | /* the latter happens when a new coro has been started */ |
|
|
1790 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1791 | if (expect_true (!slf_frame.prepare)) |
|
|
1792 | { |
|
|
1793 | /* first iteration */ |
|
|
1794 | dSP; |
|
|
1795 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1796 | int items = SP - arg; /* args without function object */ |
|
|
1797 | SV *gv = *sp; |
|
|
1798 | |
|
|
1799 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1800 | /* for us, divert to the real entersub */ |
|
|
1801 | if (SvTYPE (gv) != SVt_PVGV |
|
|
1802 | || !GvCV (gv) |
|
|
1803 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1804 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1805 | |
|
|
1806 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1807 | { |
|
|
1808 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1809 | AV *av = GvAV (PL_defgv); |
|
|
1810 | arg = AvARRAY (av); |
|
|
1811 | items = AvFILLp (av) + 1; |
|
|
1812 | } |
|
|
1813 | |
|
|
1814 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1815 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1816 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1817 | |
|
|
1818 | /* pop args */ |
|
|
1819 | SP = PL_stack_base + POPMARK; |
|
|
1820 | |
|
|
1821 | PUTBACK; |
|
|
1822 | } |
|
|
1823 | |
|
|
1824 | /* now that we have a slf_frame, interpret it! */ |
|
|
1825 | /* we use a callback system not to make the code needlessly */ |
|
|
1826 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1827 | |
|
|
1828 | do |
|
|
1829 | { |
|
|
1830 | struct coro_transfer_args ta; |
|
|
1831 | |
|
|
1832 | slf_frame.prepare (aTHX_ &ta); |
|
|
1833 | TRANSFER (ta, 0); |
|
|
1834 | |
|
|
1835 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1836 | } |
|
|
1837 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1838 | |
|
|
1839 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1840 | |
|
|
1841 | /* return value handling - mostly like entersub */ |
|
|
1842 | { |
|
|
1843 | dSP; |
|
|
1844 | SV **bot = PL_stack_base + checkmark; |
|
|
1845 | int gimme = GIMME_V; |
|
|
1846 | |
|
|
1847 | /* make sure we put something on the stack in scalar context */ |
|
|
1848 | if (gimme == G_SCALAR) |
|
|
1849 | { |
|
|
1850 | if (sp == bot) |
|
|
1851 | XPUSHs (&PL_sv_undef); |
|
|
1852 | |
|
|
1853 | SP = bot + 1; |
1391 | } |
1854 | } |
|
|
1855 | |
|
|
1856 | PUTBACK; |
|
|
1857 | } |
|
|
1858 | |
|
|
1859 | /* exception handling */ |
|
|
1860 | if (expect_false (coro_throw)) |
|
|
1861 | { |
|
|
1862 | SV *exception = sv_2mortal (coro_throw); |
|
|
1863 | |
|
|
1864 | coro_throw = 0; |
|
|
1865 | sv_setsv (ERRSV, exception); |
|
|
1866 | croak (0); |
|
|
1867 | } |
|
|
1868 | |
|
|
1869 | return NORMAL; |
1392 | } |
1870 | } |
|
|
1871 | |
|
|
1872 | static void |
|
|
1873 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1874 | { |
|
|
1875 | int i; |
|
|
1876 | SV **arg = PL_stack_base + ax; |
|
|
1877 | int items = PL_stack_sp - arg + 1; |
|
|
1878 | |
|
|
1879 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1880 | |
|
|
1881 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1882 | && PL_op->op_ppaddr != pp_slf) |
|
|
1883 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1884 | |
|
|
1885 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1886 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1887 | slf_cv = cv; |
|
|
1888 | |
|
|
1889 | /* we patch the op, and then re-run the whole call */ |
|
|
1890 | /* we have to put the same argument on the stack for this to work */ |
|
|
1891 | /* and this will be done by pp_restore */ |
|
|
1892 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1893 | slf_restore.op_type = OP_CUSTOM; |
|
|
1894 | slf_restore.op_ppaddr = pp_restore; |
|
|
1895 | slf_restore.op_first = PL_op; |
|
|
1896 | |
|
|
1897 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1898 | |
|
|
1899 | if (PL_op->op_flags & OPf_STACKED) |
|
|
1900 | { |
|
|
1901 | if (items > slf_arga) |
|
|
1902 | { |
|
|
1903 | slf_arga = items; |
|
|
1904 | free (slf_argv); |
|
|
1905 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
1906 | } |
|
|
1907 | |
|
|
1908 | slf_argc = items; |
|
|
1909 | |
|
|
1910 | for (i = 0; i < items; ++i) |
|
|
1911 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
1912 | } |
|
|
1913 | else |
|
|
1914 | slf_argc = 0; |
|
|
1915 | |
|
|
1916 | PL_op->op_ppaddr = pp_slf; |
|
|
1917 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
1918 | |
|
|
1919 | PL_op = (OP *)&slf_restore; |
|
|
1920 | } |
|
|
1921 | |
|
|
1922 | /*****************************************************************************/ |
|
|
1923 | /* PerlIO::cede */ |
|
|
1924 | |
|
|
1925 | typedef struct |
|
|
1926 | { |
|
|
1927 | PerlIOBuf base; |
|
|
1928 | NV next, every; |
|
|
1929 | } PerlIOCede; |
|
|
1930 | |
|
|
1931 | static IV |
|
|
1932 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
1933 | { |
|
|
1934 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1935 | |
|
|
1936 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
1937 | self->next = nvtime () + self->every; |
|
|
1938 | |
|
|
1939 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
1940 | } |
|
|
1941 | |
|
|
1942 | static SV * |
|
|
1943 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
1944 | { |
|
|
1945 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1946 | |
|
|
1947 | return newSVnv (self->every); |
|
|
1948 | } |
|
|
1949 | |
|
|
1950 | static IV |
|
|
1951 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
1952 | { |
|
|
1953 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1954 | double now = nvtime (); |
|
|
1955 | |
|
|
1956 | if (now >= self->next) |
|
|
1957 | { |
|
|
1958 | api_cede (aTHX); |
|
|
1959 | self->next = now + self->every; |
|
|
1960 | } |
|
|
1961 | |
|
|
1962 | return PerlIOBuf_flush (aTHX_ f); |
|
|
1963 | } |
|
|
1964 | |
|
|
1965 | static PerlIO_funcs PerlIO_cede = |
|
|
1966 | { |
|
|
1967 | sizeof(PerlIO_funcs), |
|
|
1968 | "cede", |
|
|
1969 | sizeof(PerlIOCede), |
|
|
1970 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
1971 | PerlIOCede_pushed, |
|
|
1972 | PerlIOBuf_popped, |
|
|
1973 | PerlIOBuf_open, |
|
|
1974 | PerlIOBase_binmode, |
|
|
1975 | PerlIOCede_getarg, |
|
|
1976 | PerlIOBase_fileno, |
|
|
1977 | PerlIOBuf_dup, |
|
|
1978 | PerlIOBuf_read, |
|
|
1979 | PerlIOBuf_unread, |
|
|
1980 | PerlIOBuf_write, |
|
|
1981 | PerlIOBuf_seek, |
|
|
1982 | PerlIOBuf_tell, |
|
|
1983 | PerlIOBuf_close, |
|
|
1984 | PerlIOCede_flush, |
|
|
1985 | PerlIOBuf_fill, |
|
|
1986 | PerlIOBase_eof, |
|
|
1987 | PerlIOBase_error, |
|
|
1988 | PerlIOBase_clearerr, |
|
|
1989 | PerlIOBase_setlinebuf, |
|
|
1990 | PerlIOBuf_get_base, |
|
|
1991 | PerlIOBuf_bufsiz, |
|
|
1992 | PerlIOBuf_get_ptr, |
|
|
1993 | PerlIOBuf_get_cnt, |
|
|
1994 | PerlIOBuf_set_ptrcnt, |
|
|
1995 | }; |
|
|
1996 | |
|
|
1997 | /*****************************************************************************/ |
|
|
1998 | /* Coro::Semaphore */ |
|
|
1999 | |
|
|
2000 | static void |
|
|
2001 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2002 | { |
|
|
2003 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2004 | IV count = SvIVX (count_sv); |
|
|
2005 | |
|
|
2006 | count += adjust; |
|
|
2007 | SvIVX (count_sv) = count; |
|
|
2008 | |
|
|
2009 | /* now wake up as many waiters as are expected to lock */ |
|
|
2010 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2011 | { |
|
|
2012 | SV *cb; |
|
|
2013 | |
|
|
2014 | /* swap first two elements so we can shift a waiter */ |
|
|
2015 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2016 | AvARRAY (av)[1] = count_sv; |
|
|
2017 | cb = av_shift (av); |
|
|
2018 | |
|
|
2019 | if (SvOBJECT (cb)) |
|
|
2020 | api_ready (aTHX_ cb); |
|
|
2021 | else |
|
|
2022 | croak ("callbacks not yet supported"); |
|
|
2023 | |
|
|
2024 | SvREFCNT_dec (cb); |
|
|
2025 | |
|
|
2026 | --count; |
|
|
2027 | } |
|
|
2028 | } |
|
|
2029 | |
|
|
2030 | static void |
|
|
2031 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2032 | { |
|
|
2033 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2034 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2035 | } |
|
|
2036 | |
|
|
2037 | static int |
|
|
2038 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2039 | { |
|
|
2040 | AV *av = (AV *)frame->data; |
|
|
2041 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2042 | |
|
|
2043 | if (SvIVX (count_sv) > 0) |
|
|
2044 | { |
|
|
2045 | SvSTATE_current->on_destroy = 0; |
|
|
2046 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2047 | return 0; |
|
|
2048 | } |
|
|
2049 | else |
|
|
2050 | { |
|
|
2051 | int i; |
|
|
2052 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2053 | /* waiters list and only add us if we aren't in there already */ |
|
|
2054 | /* this avoids some degenerate memory usage cases */ |
|
|
2055 | |
|
|
2056 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2057 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2058 | return 1; |
|
|
2059 | |
|
|
2060 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2061 | return 1; |
|
|
2062 | } |
|
|
2063 | } |
|
|
2064 | |
|
|
2065 | static void |
|
|
2066 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2067 | { |
|
|
2068 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2069 | |
|
|
2070 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2071 | { |
|
|
2072 | frame->data = (void *)av; |
|
|
2073 | frame->prepare = prepare_nop; |
|
|
2074 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2075 | } |
|
|
2076 | else |
|
|
2077 | { |
|
|
2078 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2079 | |
|
|
2080 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2081 | frame->prepare = prepare_schedule; |
|
|
2082 | |
|
|
2083 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2084 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2085 | assert (!SvSTATE_current->on_destroy);//D |
|
|
2086 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2087 | } |
|
|
2088 | |
|
|
2089 | frame->check = slf_check_semaphore_down; |
|
|
2090 | |
|
|
2091 | } |
|
|
2092 | |
|
|
2093 | /*****************************************************************************/ |
|
|
2094 | /* gensub: simple closure generation utility */ |
|
|
2095 | |
|
|
2096 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
2097 | |
|
|
2098 | /* create a closure from XS, returns a code reference */ |
|
|
2099 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
2100 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
2101 | static SV * |
|
|
2102 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
2103 | { |
|
|
2104 | CV *cv = (CV *)newSV (0); |
|
|
2105 | |
|
|
2106 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
2107 | |
|
|
2108 | CvANON_on (cv); |
|
|
2109 | CvISXSUB_on (cv); |
|
|
2110 | CvXSUB (cv) = xsub; |
|
|
2111 | GENSUB_ARG = arg; |
|
|
2112 | |
|
|
2113 | return newRV_noinc ((SV *)cv); |
|
|
2114 | } |
|
|
2115 | |
|
|
2116 | /*****************************************************************************/ |
|
|
2117 | /* Coro::AIO */ |
|
|
2118 | |
|
|
2119 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2120 | |
|
|
2121 | /* helper storage struct */ |
|
|
2122 | struct io_state |
|
|
2123 | { |
|
|
2124 | int errorno; |
|
|
2125 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2126 | int laststatval; |
|
|
2127 | Stat_t statcache; |
|
|
2128 | }; |
|
|
2129 | |
|
|
2130 | static void |
|
|
2131 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2132 | { |
|
|
2133 | dXSARGS; |
|
|
2134 | AV *state = (AV *)GENSUB_ARG; |
|
|
2135 | SV *coro = av_pop (state); |
|
|
2136 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2137 | |
|
|
2138 | av_extend (state, items); |
|
|
2139 | |
|
|
2140 | sv_upgrade (data_sv, SVt_PV); |
|
|
2141 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2142 | SvPOK_only (data_sv); |
|
|
2143 | |
|
|
2144 | { |
|
|
2145 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2146 | |
|
|
2147 | data->errorno = errno; |
|
|
2148 | data->laststype = PL_laststype; |
|
|
2149 | data->laststatval = PL_laststatval; |
|
|
2150 | data->statcache = PL_statcache; |
|
|
2151 | } |
|
|
2152 | |
|
|
2153 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2154 | { |
|
|
2155 | int i; |
|
|
2156 | |
|
|
2157 | for (i = 0; i < items; ++i) |
|
|
2158 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2159 | } |
|
|
2160 | |
|
|
2161 | av_push (state, data_sv); |
|
|
2162 | |
|
|
2163 | api_ready (aTHX_ coro); |
|
|
2164 | SvREFCNT_dec (coro); |
|
|
2165 | SvREFCNT_dec ((AV *)state); |
|
|
2166 | } |
|
|
2167 | |
|
|
2168 | static int |
|
|
2169 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2170 | { |
|
|
2171 | AV *state = (AV *)frame->data; |
|
|
2172 | |
|
|
2173 | /* one element that is an RV? repeat! */ |
|
|
2174 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2175 | return 1; |
|
|
2176 | |
|
|
2177 | /* restore status */ |
|
|
2178 | { |
|
|
2179 | SV *data_sv = av_pop (state); |
|
|
2180 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2181 | |
|
|
2182 | errno = data->errorno; |
|
|
2183 | PL_laststype = data->laststype; |
|
|
2184 | PL_laststatval = data->laststatval; |
|
|
2185 | PL_statcache = data->statcache; |
|
|
2186 | |
|
|
2187 | SvREFCNT_dec (data_sv); |
|
|
2188 | } |
|
|
2189 | |
|
|
2190 | /* push result values */ |
|
|
2191 | { |
|
|
2192 | dSP; |
|
|
2193 | int i; |
|
|
2194 | |
|
|
2195 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2196 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2197 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2198 | |
|
|
2199 | PUTBACK; |
|
|
2200 | } |
|
|
2201 | |
|
|
2202 | return 0; |
|
|
2203 | } |
|
|
2204 | |
|
|
2205 | static void |
|
|
2206 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2207 | { |
|
|
2208 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2209 | SV *coro_hv = SvRV (coro_current); |
|
|
2210 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2211 | |
|
|
2212 | /* put our coroutine id on the state arg */ |
|
|
2213 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2214 | |
|
|
2215 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2216 | if (coro->prio) |
|
|
2217 | { |
|
|
2218 | dSP; |
|
|
2219 | |
|
|
2220 | static SV *prio_cv; |
|
|
2221 | static SV *prio_sv; |
|
|
2222 | |
|
|
2223 | if (expect_false (!prio_cv)) |
|
|
2224 | { |
|
|
2225 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2226 | prio_sv = newSViv (0); |
|
|
2227 | } |
|
|
2228 | |
|
|
2229 | PUSHMARK (SP); |
|
|
2230 | sv_setiv (prio_sv, coro->prio); |
|
|
2231 | XPUSHs (prio_sv); |
|
|
2232 | |
|
|
2233 | PUTBACK; |
|
|
2234 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2235 | } |
|
|
2236 | |
|
|
2237 | /* now call the original request */ |
|
|
2238 | { |
|
|
2239 | dSP; |
|
|
2240 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2241 | int i; |
|
|
2242 | |
|
|
2243 | PUSHMARK (SP); |
|
|
2244 | |
|
|
2245 | /* first push all args to the stack */ |
|
|
2246 | EXTEND (SP, items + 1); |
|
|
2247 | |
|
|
2248 | for (i = 0; i < items; ++i) |
|
|
2249 | PUSHs (arg [i]); |
|
|
2250 | |
|
|
2251 | /* now push the callback closure */ |
|
|
2252 | PUSHs (sv_2mortal (gensub (coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2253 | |
|
|
2254 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2255 | PUTBACK; |
|
|
2256 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2257 | } |
|
|
2258 | |
|
|
2259 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2260 | frame->data = (void *)state; |
|
|
2261 | frame->prepare = prepare_schedule; |
|
|
2262 | frame->check = slf_check_aio_req; |
|
|
2263 | } |
|
|
2264 | |
|
|
2265 | static void |
|
|
2266 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2267 | { |
|
|
2268 | dVAR; |
|
|
2269 | dXSARGS; |
|
|
2270 | |
|
|
2271 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2272 | |
|
|
2273 | XSRETURN_EMPTY; |
|
|
2274 | } |
|
|
2275 | |
|
|
2276 | /*****************************************************************************/ |
1393 | |
2277 | |
1394 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2278 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1395 | |
2279 | |
1396 | PROTOTYPES: DISABLE |
2280 | PROTOTYPES: DISABLE |
1397 | |
2281 | |
1398 | BOOT: |
2282 | BOOT: |
1399 | { |
2283 | { |
1400 | #ifdef USE_ITHREADS |
2284 | #ifdef USE_ITHREADS |
1401 | MUTEX_INIT (&coro_mutex); |
2285 | # if CORO_PTHREAD |
|
|
2286 | coro_thx = PERL_GET_CONTEXT; |
|
|
2287 | # endif |
1402 | #endif |
2288 | #endif |
1403 | BOOT_PAGESIZE; |
2289 | BOOT_PAGESIZE; |
1404 | |
2290 | |
1405 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2291 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
1406 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2292 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
2293 | |
|
|
2294 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
2295 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
2296 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
2297 | |
|
|
2298 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
2299 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
2300 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1407 | |
2301 | |
1408 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
2302 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1409 | |
2303 | |
1410 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
2304 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1411 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
2305 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
… | |
… | |
1416 | main_top_env = PL_top_env; |
2310 | main_top_env = PL_top_env; |
1417 | |
2311 | |
1418 | while (main_top_env->je_prev) |
2312 | while (main_top_env->je_prev) |
1419 | main_top_env = main_top_env->je_prev; |
2313 | main_top_env = main_top_env->je_prev; |
1420 | |
2314 | |
|
|
2315 | { |
|
|
2316 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2317 | |
|
|
2318 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2319 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2320 | newSVpv ("coro_slf", 0), 0); |
|
|
2321 | |
|
|
2322 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2323 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2324 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2325 | } |
|
|
2326 | |
1421 | coroapi.ver = CORO_API_VERSION; |
2327 | coroapi.ver = CORO_API_VERSION; |
|
|
2328 | coroapi.rev = CORO_API_REVISION; |
|
|
2329 | |
1422 | coroapi.transfer = api_transfer; |
2330 | coroapi.transfer = api_transfer; |
|
|
2331 | |
|
|
2332 | coroapi.sv_state = SvSTATE_; |
|
|
2333 | coroapi.execute_slf = api_execute_slf; |
|
|
2334 | coroapi.prepare_nop = prepare_nop; |
|
|
2335 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2336 | coroapi.prepare_cede = prepare_cede; |
|
|
2337 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
2338 | |
|
|
2339 | { |
|
|
2340 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
2341 | |
|
|
2342 | if (!svp) croak ("Time::HiRes is required"); |
|
|
2343 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
2344 | |
|
|
2345 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
2346 | } |
1423 | |
2347 | |
1424 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2348 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1425 | } |
2349 | } |
1426 | |
2350 | |
1427 | SV * |
2351 | SV * |
1428 | new (char *klass, ...) |
2352 | new (char *klass, ...) |
1429 | CODE: |
2353 | CODE: |
1430 | { |
2354 | { |
1431 | struct coro *coro; |
2355 | struct coro *coro; |
|
|
2356 | MAGIC *mg; |
1432 | HV *hv; |
2357 | HV *hv; |
1433 | int i; |
2358 | int i; |
1434 | |
2359 | |
1435 | Newz (0, coro, 1, struct coro); |
2360 | Newz (0, coro, 1, struct coro); |
1436 | coro->args = newAV (); |
2361 | coro->args = newAV (); |
… | |
… | |
1439 | if (coro_first) coro_first->prev = coro; |
2364 | if (coro_first) coro_first->prev = coro; |
1440 | coro->next = coro_first; |
2365 | coro->next = coro_first; |
1441 | coro_first = coro; |
2366 | coro_first = coro; |
1442 | |
2367 | |
1443 | coro->hv = hv = newHV (); |
2368 | coro->hv = hv = newHV (); |
1444 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
2369 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
2370 | mg->mg_flags |= MGf_DUP; |
1445 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2371 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1446 | |
2372 | |
1447 | av_extend (coro->args, items - 1); |
2373 | av_extend (coro->args, items - 1); |
1448 | for (i = 1; i < items; i++) |
2374 | for (i = 1; i < items; i++) |
1449 | av_push (coro->args, newSVsv (ST (i))); |
2375 | av_push (coro->args, newSVsv (ST (i))); |
1450 | } |
2376 | } |
1451 | OUTPUT: |
2377 | OUTPUT: |
1452 | RETVAL |
2378 | RETVAL |
1453 | |
2379 | |
1454 | # these not obviously related functions are all rolled into the same xs |
|
|
1455 | # function to increase chances that they all will call transfer with the same |
|
|
1456 | # stack offset |
|
|
1457 | void |
2380 | void |
1458 | _set_stacklevel (...) |
2381 | _set_stacklevel (...) |
1459 | ALIAS: |
2382 | CODE: |
1460 | Coro::State::transfer = 1 |
2383 | CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel); |
1461 | Coro::schedule = 2 |
|
|
1462 | Coro::cede = 3 |
|
|
1463 | Coro::cede_notself = 4 |
|
|
1464 | CODE: |
|
|
1465 | { |
|
|
1466 | struct transfer_args ta; |
|
|
1467 | |
2384 | |
1468 | switch (ix) |
2385 | void |
1469 | { |
2386 | transfer (...) |
1470 | case 0: |
2387 | PROTOTYPE: $$ |
1471 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
2388 | CODE: |
1472 | ta.next = 0; |
2389 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1473 | break; |
|
|
1474 | |
|
|
1475 | case 1: |
|
|
1476 | if (items != 2) |
|
|
1477 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1478 | |
|
|
1479 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1480 | break; |
|
|
1481 | |
|
|
1482 | case 2: |
|
|
1483 | prepare_schedule (aTHX_ &ta); |
|
|
1484 | break; |
|
|
1485 | |
|
|
1486 | case 3: |
|
|
1487 | prepare_cede (aTHX_ &ta); |
|
|
1488 | break; |
|
|
1489 | |
|
|
1490 | case 4: |
|
|
1491 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1492 | XSRETURN_EMPTY; |
|
|
1493 | |
|
|
1494 | break; |
|
|
1495 | } |
|
|
1496 | |
|
|
1497 | BARRIER; |
|
|
1498 | TRANSFER (ta); |
|
|
1499 | |
|
|
1500 | if (expect_false (GIMME_V != G_VOID && ta.next != ta.prev)) |
|
|
1501 | XSRETURN_YES; |
|
|
1502 | } |
|
|
1503 | |
2390 | |
1504 | bool |
2391 | bool |
1505 | _destroy (SV *coro_sv) |
2392 | _destroy (SV *coro_sv) |
1506 | CODE: |
2393 | CODE: |
1507 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2394 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1508 | OUTPUT: |
2395 | OUTPUT: |
1509 | RETVAL |
2396 | RETVAL |
1510 | |
2397 | |
1511 | void |
2398 | void |
1512 | _exit (code) |
2399 | _exit (int code) |
1513 | int code |
|
|
1514 | PROTOTYPE: $ |
2400 | PROTOTYPE: $ |
1515 | CODE: |
2401 | CODE: |
1516 | _exit (code); |
2402 | _exit (code); |
1517 | |
2403 | |
1518 | int |
2404 | int |
1519 | cctx_stacksize (int new_stacksize = 0) |
2405 | cctx_stacksize (int new_stacksize = 0) |
|
|
2406 | PROTOTYPE: ;$ |
1520 | CODE: |
2407 | CODE: |
1521 | RETVAL = coro_stacksize; |
2408 | RETVAL = cctx_stacksize; |
1522 | if (new_stacksize) |
2409 | if (new_stacksize) |
|
|
2410 | { |
1523 | coro_stacksize = new_stacksize; |
2411 | cctx_stacksize = new_stacksize; |
|
|
2412 | ++cctx_gen; |
|
|
2413 | } |
1524 | OUTPUT: |
2414 | OUTPUT: |
1525 | RETVAL |
2415 | RETVAL |
1526 | |
2416 | |
1527 | int |
2417 | int |
|
|
2418 | cctx_max_idle (int max_idle = 0) |
|
|
2419 | PROTOTYPE: ;$ |
|
|
2420 | CODE: |
|
|
2421 | RETVAL = cctx_max_idle; |
|
|
2422 | if (max_idle > 1) |
|
|
2423 | cctx_max_idle = max_idle; |
|
|
2424 | OUTPUT: |
|
|
2425 | RETVAL |
|
|
2426 | |
|
|
2427 | int |
1528 | cctx_count () |
2428 | cctx_count () |
|
|
2429 | PROTOTYPE: |
1529 | CODE: |
2430 | CODE: |
1530 | RETVAL = cctx_count; |
2431 | RETVAL = cctx_count; |
1531 | OUTPUT: |
2432 | OUTPUT: |
1532 | RETVAL |
2433 | RETVAL |
1533 | |
2434 | |
1534 | int |
2435 | int |
1535 | cctx_idle () |
2436 | cctx_idle () |
|
|
2437 | PROTOTYPE: |
1536 | CODE: |
2438 | CODE: |
1537 | RETVAL = cctx_idle; |
2439 | RETVAL = cctx_idle; |
1538 | OUTPUT: |
2440 | OUTPUT: |
1539 | RETVAL |
2441 | RETVAL |
1540 | |
2442 | |
1541 | void |
2443 | void |
1542 | list () |
2444 | list () |
|
|
2445 | PROTOTYPE: |
1543 | PPCODE: |
2446 | PPCODE: |
1544 | { |
2447 | { |
1545 | struct coro *coro; |
2448 | struct coro *coro; |
1546 | for (coro = coro_first; coro; coro = coro->next) |
2449 | for (coro = coro_first; coro; coro = coro->next) |
1547 | if (coro->hv) |
2450 | if (coro->hv) |
… | |
… | |
1552 | call (Coro::State coro, SV *coderef) |
2455 | call (Coro::State coro, SV *coderef) |
1553 | ALIAS: |
2456 | ALIAS: |
1554 | eval = 1 |
2457 | eval = 1 |
1555 | CODE: |
2458 | CODE: |
1556 | { |
2459 | { |
1557 | if (coro->mainstack) |
2460 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1558 | { |
2461 | { |
1559 | struct coro temp; |
2462 | struct coro temp; |
1560 | Zero (&temp, 1, struct coro); |
|
|
1561 | |
2463 | |
1562 | if (!(coro->flags & CF_RUNNING)) |
2464 | if (!(coro->flags & CF_RUNNING)) |
1563 | { |
2465 | { |
|
|
2466 | PUTBACK; |
1564 | save_perl (aTHX_ &temp); |
2467 | save_perl (aTHX_ &temp); |
1565 | load_perl (aTHX_ coro); |
2468 | load_perl (aTHX_ coro); |
1566 | } |
2469 | } |
1567 | |
2470 | |
1568 | { |
2471 | { |
1569 | dSP; |
2472 | dSP; |
1570 | ENTER; |
2473 | ENTER; |
1571 | SAVETMPS; |
2474 | SAVETMPS; |
|
|
2475 | PUTBACK; |
|
|
2476 | PUSHSTACK; |
1572 | PUSHMARK (SP); |
2477 | PUSHMARK (SP); |
1573 | PUTBACK; |
2478 | |
1574 | if (ix) |
2479 | if (ix) |
1575 | eval_sv (coderef, 0); |
2480 | eval_sv (coderef, 0); |
1576 | else |
2481 | else |
1577 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2482 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
2483 | |
|
|
2484 | POPSTACK; |
1578 | SPAGAIN; |
2485 | SPAGAIN; |
1579 | FREETMPS; |
2486 | FREETMPS; |
1580 | LEAVE; |
2487 | LEAVE; |
1581 | PUTBACK; |
2488 | PUTBACK; |
1582 | } |
2489 | } |
1583 | |
2490 | |
1584 | if (!(coro->flags & CF_RUNNING)) |
2491 | if (!(coro->flags & CF_RUNNING)) |
1585 | { |
2492 | { |
1586 | save_perl (aTHX_ coro); |
2493 | save_perl (aTHX_ coro); |
1587 | load_perl (aTHX_ &temp); |
2494 | load_perl (aTHX_ &temp); |
|
|
2495 | SPAGAIN; |
1588 | } |
2496 | } |
1589 | } |
2497 | } |
1590 | } |
2498 | } |
1591 | |
2499 | |
1592 | SV * |
2500 | SV * |
… | |
… | |
1601 | RETVAL = boolSV (coro->flags & ix); |
2509 | RETVAL = boolSV (coro->flags & ix); |
1602 | OUTPUT: |
2510 | OUTPUT: |
1603 | RETVAL |
2511 | RETVAL |
1604 | |
2512 | |
1605 | void |
2513 | void |
|
|
2514 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2515 | PROTOTYPE: $;$ |
|
|
2516 | CODE: |
|
|
2517 | { |
|
|
2518 | struct coro *current = SvSTATE_current; |
|
|
2519 | SV **throwp = self == current ? &coro_throw : &self->throw; |
|
|
2520 | SvREFCNT_dec (*throwp); |
|
|
2521 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2522 | } |
|
|
2523 | |
|
|
2524 | void |
1606 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2525 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2526 | PROTOTYPE: $;$ |
|
|
2527 | C_ARGS: aTHX_ coro, flags |
1607 | |
2528 | |
1608 | SV * |
2529 | SV * |
1609 | has_stack (Coro::State coro) |
2530 | has_cctx (Coro::State coro) |
1610 | PROTOTYPE: $ |
2531 | PROTOTYPE: $ |
1611 | CODE: |
2532 | CODE: |
1612 | RETVAL = boolSV (!!coro->cctx); |
2533 | RETVAL = boolSV (!!coro->cctx); |
1613 | OUTPUT: |
2534 | OUTPUT: |
1614 | RETVAL |
2535 | RETVAL |
… | |
… | |
1619 | CODE: |
2540 | CODE: |
1620 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
2541 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1621 | OUTPUT: |
2542 | OUTPUT: |
1622 | RETVAL |
2543 | RETVAL |
1623 | |
2544 | |
1624 | IV |
2545 | UV |
1625 | rss (Coro::State coro) |
2546 | rss (Coro::State coro) |
1626 | PROTOTYPE: $ |
2547 | PROTOTYPE: $ |
1627 | ALIAS: |
2548 | ALIAS: |
1628 | usecount = 1 |
2549 | usecount = 1 |
1629 | CODE: |
2550 | CODE: |
… | |
… | |
1633 | case 1: RETVAL = coro->usecount; break; |
2554 | case 1: RETVAL = coro->usecount; break; |
1634 | } |
2555 | } |
1635 | OUTPUT: |
2556 | OUTPUT: |
1636 | RETVAL |
2557 | RETVAL |
1637 | |
2558 | |
|
|
2559 | void |
|
|
2560 | force_cctx () |
|
|
2561 | PROTOTYPE: |
|
|
2562 | CODE: |
|
|
2563 | SvSTATE_current->cctx->idle_sp = 0; |
|
|
2564 | |
|
|
2565 | void |
|
|
2566 | swap_defsv (Coro::State self) |
|
|
2567 | PROTOTYPE: $ |
|
|
2568 | ALIAS: |
|
|
2569 | swap_defav = 1 |
|
|
2570 | CODE: |
|
|
2571 | if (!self->slot) |
|
|
2572 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
2573 | else |
|
|
2574 | { |
|
|
2575 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
2576 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
2577 | |
|
|
2578 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
2579 | } |
|
|
2580 | |
1638 | |
2581 | |
1639 | MODULE = Coro::State PACKAGE = Coro |
2582 | MODULE = Coro::State PACKAGE = Coro |
1640 | |
2583 | |
1641 | BOOT: |
2584 | BOOT: |
1642 | { |
2585 | { |
1643 | int i; |
2586 | int i; |
1644 | |
2587 | |
1645 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1646 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1647 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
2588 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2589 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
2590 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
1648 | |
2591 | |
1649 | coro_current = get_sv ("Coro::current", FALSE); |
2592 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
1650 | SvREADONLY_on (coro_current); |
2593 | SvREADONLY_on (coro_current); |
1651 | |
2594 | |
1652 | coro_stash = gv_stashpv ("Coro", TRUE); |
2595 | coro_stash = gv_stashpv ("Coro", TRUE); |
1653 | |
2596 | |
1654 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2597 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1655 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2598 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1656 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
2599 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1657 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
2600 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
… | |
… | |
1660 | |
2603 | |
1661 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2604 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1662 | coro_ready[i] = newAV (); |
2605 | coro_ready[i] = newAV (); |
1663 | |
2606 | |
1664 | { |
2607 | { |
1665 | SV *sv = perl_get_sv("Coro::API", 1); |
2608 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1666 | |
2609 | |
1667 | coroapi.schedule = api_schedule; |
2610 | coroapi.schedule = api_schedule; |
1668 | coroapi.cede = api_cede; |
2611 | coroapi.cede = api_cede; |
1669 | coroapi.cede_notself = api_cede_notself; |
2612 | coroapi.cede_notself = api_cede_notself; |
1670 | coroapi.ready = api_ready; |
2613 | coroapi.ready = api_ready; |
1671 | coroapi.is_ready = api_is_ready; |
2614 | coroapi.is_ready = api_is_ready; |
1672 | coroapi.nready = &coro_nready; |
2615 | coroapi.nready = coro_nready; |
1673 | coroapi.current = coro_current; |
2616 | coroapi.current = coro_current; |
1674 | |
2617 | |
1675 | GCoroAPI = &coroapi; |
2618 | GCoroAPI = &coroapi; |
1676 | sv_setiv (sv, (IV)&coroapi); |
2619 | sv_setiv (sv, (IV)&coroapi); |
1677 | SvREADONLY_on (sv); |
2620 | SvREADONLY_on (sv); |
1678 | } |
2621 | } |
1679 | } |
2622 | } |
|
|
2623 | |
|
|
2624 | void |
|
|
2625 | schedule (...) |
|
|
2626 | CODE: |
|
|
2627 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
2628 | |
|
|
2629 | void |
|
|
2630 | cede (...) |
|
|
2631 | CODE: |
|
|
2632 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
2633 | |
|
|
2634 | void |
|
|
2635 | cede_notself (...) |
|
|
2636 | CODE: |
|
|
2637 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1680 | |
2638 | |
1681 | void |
2639 | void |
1682 | _set_current (SV *current) |
2640 | _set_current (SV *current) |
1683 | PROTOTYPE: $ |
2641 | PROTOTYPE: $ |
1684 | CODE: |
2642 | CODE: |
1685 | SvREFCNT_dec (SvRV (coro_current)); |
2643 | SvREFCNT_dec (SvRV (coro_current)); |
1686 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
2644 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
2645 | |
|
|
2646 | void |
|
|
2647 | _set_readyhook (SV *hook) |
|
|
2648 | PROTOTYPE: $ |
|
|
2649 | CODE: |
|
|
2650 | SvREFCNT_dec (coro_readyhook); |
|
|
2651 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
1687 | |
2652 | |
1688 | int |
2653 | int |
1689 | prio (Coro::State coro, int newprio = 0) |
2654 | prio (Coro::State coro, int newprio = 0) |
|
|
2655 | PROTOTYPE: $;$ |
1690 | ALIAS: |
2656 | ALIAS: |
1691 | nice = 1 |
2657 | nice = 1 |
1692 | CODE: |
2658 | CODE: |
1693 | { |
2659 | { |
1694 | RETVAL = coro->prio; |
2660 | RETVAL = coro->prio; |
… | |
… | |
1709 | |
2675 | |
1710 | SV * |
2676 | SV * |
1711 | ready (SV *self) |
2677 | ready (SV *self) |
1712 | PROTOTYPE: $ |
2678 | PROTOTYPE: $ |
1713 | CODE: |
2679 | CODE: |
1714 | RETVAL = boolSV (api_ready (self)); |
2680 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1715 | OUTPUT: |
2681 | OUTPUT: |
1716 | RETVAL |
2682 | RETVAL |
1717 | |
2683 | |
1718 | int |
2684 | int |
1719 | nready (...) |
2685 | nready (...) |
… | |
… | |
1726 | # for async_pool speedup |
2692 | # for async_pool speedup |
1727 | void |
2693 | void |
1728 | _pool_1 (SV *cb) |
2694 | _pool_1 (SV *cb) |
1729 | CODE: |
2695 | CODE: |
1730 | { |
2696 | { |
1731 | struct coro *coro = SvSTATE (coro_current); |
|
|
1732 | HV *hv = (HV *)SvRV (coro_current); |
2697 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2698 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
1733 | AV *defav = GvAV (PL_defgv); |
2699 | AV *defav = GvAV (PL_defgv); |
1734 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2700 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
1735 | AV *invoke_av; |
2701 | AV *invoke_av; |
1736 | int i, len; |
2702 | int i, len; |
1737 | |
2703 | |
1738 | if (!invoke) |
2704 | if (!invoke) |
|
|
2705 | { |
|
|
2706 | SV *old = PL_diehook; |
|
|
2707 | PL_diehook = 0; |
|
|
2708 | SvREFCNT_dec (old); |
1739 | croak ("\3terminate\2\n"); |
2709 | croak ("\3async_pool terminate\2\n"); |
|
|
2710 | } |
1740 | |
2711 | |
1741 | SvREFCNT_dec (coro->saved_deffh); |
2712 | SvREFCNT_dec (coro->saved_deffh); |
1742 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
2713 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
1743 | |
2714 | |
1744 | hv_store (hv, "desc", sizeof ("desc") - 1, |
2715 | hv_store (hv, "desc", sizeof ("desc") - 1, |
1745 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
2716 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
1746 | |
2717 | |
1747 | invoke_av = (AV *)SvRV (invoke); |
2718 | invoke_av = (AV *)SvRV (invoke); |
… | |
… | |
1751 | |
2722 | |
1752 | if (len > 0) |
2723 | if (len > 0) |
1753 | { |
2724 | { |
1754 | av_fill (defav, len - 1); |
2725 | av_fill (defav, len - 1); |
1755 | for (i = 0; i < len; ++i) |
2726 | for (i = 0; i < len; ++i) |
1756 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
2727 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
1757 | } |
2728 | } |
1758 | |
|
|
1759 | SvREFCNT_dec (invoke); |
|
|
1760 | } |
2729 | } |
1761 | |
2730 | |
1762 | void |
2731 | void |
1763 | _pool_2 (SV *cb) |
2732 | _pool_2 (SV *cb) |
1764 | CODE: |
2733 | CODE: |
1765 | { |
2734 | { |
1766 | struct coro *coro = SvSTATE (coro_current); |
2735 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2736 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
1767 | |
2737 | |
1768 | sv_setsv (cb, &PL_sv_undef); |
2738 | sv_setsv (cb, &PL_sv_undef); |
1769 | |
2739 | |
1770 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2740 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
1771 | coro->saved_deffh = 0; |
2741 | coro->saved_deffh = 0; |
1772 | |
2742 | |
1773 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
2743 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
1774 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
2744 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2745 | { |
|
|
2746 | SV *old = PL_diehook; |
|
|
2747 | PL_diehook = 0; |
|
|
2748 | SvREFCNT_dec (old); |
1775 | croak ("\3terminate\2\n"); |
2749 | croak ("\3async_pool terminate\2\n"); |
|
|
2750 | } |
1776 | |
2751 | |
1777 | av_clear (GvAV (PL_defgv)); |
2752 | av_clear (GvAV (PL_defgv)); |
1778 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
2753 | hv_store (hv, "desc", sizeof ("desc") - 1, |
1779 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2754 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
1780 | |
2755 | |
1781 | coro->prio = 0; |
2756 | coro->prio = 0; |
1782 | |
2757 | |
1783 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2758 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
1784 | api_trace (coro_current, 0); |
2759 | api_trace (aTHX_ coro_current, 0); |
1785 | |
2760 | |
1786 | av_push (av_async_pool, newSVsv (coro_current)); |
2761 | av_push (av_async_pool, newSVsv (coro_current)); |
1787 | } |
2762 | } |
1788 | |
2763 | |
1789 | |
2764 | |
|
|
2765 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
2766 | |
|
|
2767 | BOOT: |
|
|
2768 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
2769 | |
|
|
2770 | |
1790 | MODULE = Coro::State PACKAGE = Coro::AIO |
2771 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
1791 | |
2772 | |
1792 | SV * |
2773 | SV * |
1793 | _get_state () |
2774 | new (SV *klass, SV *count_ = 0) |
1794 | CODE: |
2775 | CODE: |
1795 | { |
2776 | { |
1796 | struct io_state *data; |
2777 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
1797 | |
2778 | AV *av = newAV (); |
1798 | RETVAL = newSV (sizeof (struct io_state)); |
2779 | av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
1799 | data = (struct io_state *)SvPVX (RETVAL); |
2780 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
1800 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1801 | SvPOK_only (RETVAL); |
|
|
1802 | |
|
|
1803 | data->errorno = errno; |
|
|
1804 | data->laststype = PL_laststype; |
|
|
1805 | data->laststatval = PL_laststatval; |
|
|
1806 | data->statcache = PL_statcache; |
|
|
1807 | } |
2781 | } |
1808 | OUTPUT: |
2782 | OUTPUT: |
1809 | RETVAL |
2783 | RETVAL |
1810 | |
2784 | |
|
|
2785 | SV * |
|
|
2786 | count (SV *self) |
|
|
2787 | CODE: |
|
|
2788 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
2789 | OUTPUT: |
|
|
2790 | RETVAL |
|
|
2791 | |
1811 | void |
2792 | void |
1812 | _set_state (char *data_) |
2793 | up (SV *self, int adjust = 1) |
1813 | PROTOTYPE: $ |
2794 | ALIAS: |
|
|
2795 | adjust = 1 |
|
|
2796 | CODE: |
|
|
2797 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
2798 | |
|
|
2799 | void |
|
|
2800 | down (SV *self) |
|
|
2801 | CODE: |
|
|
2802 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
2803 | |
|
|
2804 | void |
|
|
2805 | try (SV *self) |
|
|
2806 | PPCODE: |
|
|
2807 | { |
|
|
2808 | AV *av = (AV *)SvRV (self); |
|
|
2809 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2810 | IV count = SvIVX (count_sv); |
|
|
2811 | |
|
|
2812 | if (count > 0) |
|
|
2813 | { |
|
|
2814 | --count; |
|
|
2815 | SvIVX (count_sv) = count; |
|
|
2816 | XSRETURN_YES; |
|
|
2817 | } |
|
|
2818 | else |
|
|
2819 | XSRETURN_NO; |
|
|
2820 | } |
|
|
2821 | |
|
|
2822 | void |
|
|
2823 | waiters (SV *self) |
|
|
2824 | CODE: |
|
|
2825 | { |
|
|
2826 | AV *av = (AV *)SvRV (self); |
|
|
2827 | |
|
|
2828 | if (GIMME_V == G_SCALAR) |
|
|
2829 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
|
|
2830 | else |
|
|
2831 | { |
|
|
2832 | int i; |
|
|
2833 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
|
|
2834 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2835 | PUSHs (newSVsv (AvARRAY (av)[i])); |
|
|
2836 | } |
|
|
2837 | } |
|
|
2838 | |
|
|
2839 | |
|
|
2840 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2841 | |
|
|
2842 | BOOT: |
|
|
2843 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2844 | |
|
|
2845 | void |
|
|
2846 | _schedule (...) |
1814 | CODE: |
2847 | CODE: |
1815 | { |
2848 | { |
1816 | struct io_state *data = (void *)data_; |
2849 | static int incede; |
1817 | |
2850 | |
1818 | errno = data->errorno; |
2851 | api_cede_notself (aTHX); |
1819 | PL_laststype = data->laststype; |
|
|
1820 | PL_laststatval = data->laststatval; |
|
|
1821 | PL_statcache = data->statcache; |
|
|
1822 | } |
|
|
1823 | |
2852 | |
|
|
2853 | ++incede; |
|
|
2854 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2855 | ; |
|
|
2856 | |
|
|
2857 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2858 | if (coro_nready >= incede) |
|
|
2859 | { |
|
|
2860 | PUSHMARK (SP); |
|
|
2861 | PUTBACK; |
|
|
2862 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2863 | SPAGAIN; |
|
|
2864 | } |
|
|
2865 | |
|
|
2866 | --incede; |
|
|
2867 | } |
|
|
2868 | |
|
|
2869 | |
|
|
2870 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
2871 | |
|
|
2872 | void |
|
|
2873 | _register (char *target, char *proto, SV *req) |
|
|
2874 | CODE: |
|
|
2875 | { |
|
|
2876 | HV *st; |
|
|
2877 | GV *gvp; |
|
|
2878 | CV *req_cv = sv_2cv (req, &st, &gvp, 0); |
|
|
2879 | CV *slf_cv = newXSproto (target, coro_aio_req_xs, __FILE__, proto); |
|
|
2880 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
2881 | } |
|
|
2882 | |