1 | #include "libcoro/coro.c" |
1 | #include "libcoro/coro.c" |
2 | |
2 | |
3 | #define PERL_NO_GET_CONTEXT |
3 | #define PERL_NO_GET_CONTEXT |
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4 | #define PERL_EXT |
4 | |
5 | |
5 | #include "EXTERN.h" |
6 | #include "EXTERN.h" |
6 | #include "perl.h" |
7 | #include "perl.h" |
7 | #include "XSUB.h" |
8 | #include "XSUB.h" |
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9 | #include "perliol.h" |
8 | |
10 | |
9 | #include "patchlevel.h" |
11 | #include "patchlevel.h" |
10 | |
12 | |
11 | #include <stdio.h> |
13 | #include <stdio.h> |
12 | #include <errno.h> |
14 | #include <errno.h> |
13 | #include <assert.h> |
15 | #include <assert.h> |
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16 | |
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17 | #ifdef WIN32 |
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18 | # undef setjmp |
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19 | # undef longjmp |
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20 | # undef _exit |
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21 | # define setjmp _setjmp // deep magic, don't ask |
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22 | #else |
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23 | # include <inttypes.h> /* most portable stdint.h */ |
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24 | #endif |
14 | |
25 | |
15 | #ifdef HAVE_MMAP |
26 | #ifdef HAVE_MMAP |
16 | # include <unistd.h> |
27 | # include <unistd.h> |
17 | # include <sys/mman.h> |
28 | # include <sys/mman.h> |
18 | # ifndef MAP_ANONYMOUS |
29 | # ifndef MAP_ANONYMOUS |
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… | |
35 | # define BOOT_PAGESIZE (void)0 |
46 | # define BOOT_PAGESIZE (void)0 |
36 | #endif |
47 | #endif |
37 | |
48 | |
38 | #if CORO_USE_VALGRIND |
49 | #if CORO_USE_VALGRIND |
39 | # include <valgrind/valgrind.h> |
50 | # include <valgrind/valgrind.h> |
40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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41 | #else |
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42 | # define REGISTER_STACK(cctx,start,end) |
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43 | #endif |
51 | #endif |
44 | |
52 | |
45 | /* the maximum number of idle cctx that will be pooled */ |
53 | /* the maximum number of idle cctx that will be pooled */ |
46 | #define MAX_IDLE_CCTX 8 |
54 | static int cctx_max_idle = 4; |
47 | |
55 | |
48 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
56 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
49 | (PERL_REVISION > (a) \ |
57 | (PERL_REVISION > (a) \ |
50 | || (PERL_REVISION == (a) \ |
58 | || (PERL_REVISION == (a) \ |
51 | && (PERL_VERSION > (b) \ |
59 | && (PERL_VERSION > (b) \ |
… | |
… | |
70 | # ifndef IS_PADCONST |
78 | # ifndef IS_PADCONST |
71 | # define IS_PADCONST(v) 0 |
79 | # define IS_PADCONST(v) 0 |
72 | # endif |
80 | # endif |
73 | #endif |
81 | #endif |
74 | |
82 | |
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83 | /* 5.11 */ |
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84 | #ifndef CxHASARGS |
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85 | # define CxHASARGS(cx) (cx)->blk_sub.hasargs |
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86 | #endif |
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87 | |
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88 | /* 5.10.0 */ |
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89 | #ifndef SvREFCNT_inc_NN |
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90 | # define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
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91 | #endif |
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92 | |
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93 | /* 5.8.8 */ |
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94 | #ifndef GV_NOTQUAL |
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95 | # define GV_NOTQUAL 0 |
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96 | #endif |
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97 | #ifndef newSV |
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98 | # define newSV(l) NEWSV(0,l) |
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99 | #endif |
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100 | |
75 | /* 5.8.7 */ |
101 | /* 5.8.7 */ |
76 | #ifndef SvRV_set |
102 | #ifndef SvRV_set |
77 | # define SvRV_set(s,v) SvRV(s) = (v) |
103 | # define SvRV_set(s,v) SvRV(s) = (v) |
78 | #endif |
104 | #endif |
79 | |
105 | |
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88 | /* prefer perl internal functions over our own? */ |
114 | /* prefer perl internal functions over our own? */ |
89 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
115 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
116 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
91 | #endif |
117 | #endif |
92 | |
118 | |
93 | /* The next macro should declare a variable stacklevel that contains and approximation |
119 | /* The next macros try to return the current stack pointer, in an as |
94 | * to the current C stack pointer. Its property is that it changes with each call |
120 | * portable way as possible. */ |
95 | * and should be unique. */ |
121 | #if __GNUC__ >= 4 |
96 | #define dSTACKLEVEL int stacklevel |
122 | # define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
97 | #define STACKLEVEL ((void *)&stacklevel) |
123 | #else |
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124 | # define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
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125 | #endif |
98 | |
126 | |
99 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
127 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
100 | |
128 | |
101 | #if __GNUC__ >= 3 |
129 | #if __GNUC__ >= 3 |
102 | # define attribute(x) __attribute__(x) |
130 | # define attribute(x) __attribute__(x) |
103 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
131 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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132 | # define INLINE static inline |
104 | #else |
133 | #else |
105 | # define attribute(x) |
134 | # define attribute(x) |
106 | # define BARRIER |
135 | # define expect(expr,value) (expr) |
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136 | # define INLINE static |
107 | #endif |
137 | #endif |
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138 | |
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139 | #define expect_false(expr) expect ((expr) != 0, 0) |
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140 | #define expect_true(expr) expect ((expr) != 0, 1) |
108 | |
141 | |
109 | #define NOINLINE attribute ((noinline)) |
142 | #define NOINLINE attribute ((noinline)) |
110 | |
143 | |
111 | #include "CoroAPI.h" |
144 | #include "CoroAPI.h" |
112 | |
145 | |
113 | #ifdef USE_ITHREADS |
146 | #ifdef USE_ITHREADS |
114 | static perl_mutex coro_mutex; |
147 | # if CORO_PTHREAD |
115 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
148 | static void *coro_thx; |
116 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
149 | # endif |
117 | #else |
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118 | # define LOCK (void)0 |
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119 | # define UNLOCK (void)0 |
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120 | #endif |
150 | #endif |
121 | |
151 | |
122 | /* helper storage struct for Coro::AIO */ |
152 | /* helper storage struct for Coro::AIO */ |
123 | struct io_state |
153 | struct io_state |
124 | { |
154 | { |
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155 | AV *res; |
125 | int errorno; |
156 | int errorno; |
126 | I32 laststype; |
157 | I32 laststype; /* U16 in 5.10.0 */ |
127 | int laststatval; |
158 | int laststatval; |
128 | Stat_t statcache; |
159 | Stat_t statcache; |
129 | }; |
160 | }; |
130 | |
161 | |
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162 | static double (*nvtime)(); /* so why doesn't it take void? */ |
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163 | |
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164 | static U32 cctx_gen; |
131 | static size_t coro_stacksize = CORO_STACKSIZE; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
132 | static struct CoroAPI coroapi; |
166 | static struct CoroAPI coroapi; |
133 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
134 | static JMPENV *main_top_env; |
168 | static JMPENV *main_top_env; |
135 | static HV *coro_state_stash, *coro_stash; |
169 | static HV *coro_state_stash, *coro_stash; |
136 | static SV *coro_mortal; /* will be freed after next transfer */ |
170 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
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171 | |
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172 | static GV *irsgv; /* $/ */ |
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173 | static GV *stdoutgv; /* *STDOUT */ |
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174 | static SV *rv_diehook; |
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175 | static SV *rv_warnhook; |
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176 | static HV *hv_sig; /* %SIG */ |
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177 | |
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178 | /* async_pool helper stuff */ |
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179 | static SV *sv_pool_rss; |
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180 | static SV *sv_pool_size; |
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181 | static AV *av_async_pool; |
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182 | |
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183 | /* Coro::AnyEvent */ |
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184 | static SV *sv_activity; |
137 | |
185 | |
138 | static struct coro_cctx *cctx_first; |
186 | static struct coro_cctx *cctx_first; |
139 | static int cctx_count, cctx_idle; |
187 | static int cctx_count, cctx_idle; |
140 | |
188 | |
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189 | enum { |
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190 | CC_MAPPED = 0x01, |
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191 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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192 | CC_TRACE = 0x04, |
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193 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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194 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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195 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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196 | }; |
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197 | |
141 | /* this is a structure representing a c-level coroutine */ |
198 | /* this is a structure representing a c-level coroutine */ |
142 | typedef struct coro_cctx { |
199 | typedef struct coro_cctx |
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200 | { |
143 | struct coro_cctx *next; |
201 | struct coro_cctx *next; |
144 | |
202 | |
145 | /* the stack */ |
203 | /* the stack */ |
146 | void *sptr; |
204 | void *sptr; |
147 | size_t ssize; |
205 | size_t ssize; |
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150 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
208 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
151 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
209 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
152 | JMPENV *top_env; |
210 | JMPENV *top_env; |
153 | coro_context cctx; |
211 | coro_context cctx; |
154 | |
212 | |
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213 | U32 gen; |
155 | #if CORO_USE_VALGRIND |
214 | #if CORO_USE_VALGRIND |
156 | int valgrind_id; |
215 | int valgrind_id; |
157 | #endif |
216 | #endif |
158 | char inuse, mapped; |
217 | unsigned char flags; |
159 | } coro_cctx; |
218 | } coro_cctx; |
160 | |
219 | |
161 | enum { |
220 | enum { |
162 | CF_RUNNING = 0x0001, /* coroutine is running */ |
221 | CF_RUNNING = 0x0001, /* coroutine is running */ |
163 | CF_READY = 0x0002, /* coroutine is ready */ |
222 | CF_READY = 0x0002, /* coroutine is ready */ |
164 | CF_NEW = 0x0004, /* has never been switched to */ |
223 | CF_NEW = 0x0004, /* has never been switched to */ |
165 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
224 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
166 | }; |
225 | }; |
167 | |
226 | |
168 | /* this is a structure representing a perl-level coroutine */ |
227 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
169 | struct coro { |
228 | typedef struct |
170 | /* the c coroutine allocated to this perl coroutine, if any */ |
229 | { |
171 | coro_cctx *cctx; |
230 | SV *defsv; |
172 | |
231 | AV *defav; |
173 | /* data associated with this coroutine (initial args) */ |
232 | SV *errsv; |
174 | AV *args; |
233 | SV *irsgv; |
175 | int refcnt; |
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176 | int save; /* CORO_SAVE flags */ |
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177 | int flags; /* CF_ flags */ |
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178 | |
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179 | /* optionally saved, might be zero */ |
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180 | AV *defav; /* @_ */ |
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181 | SV *defsv; /* $_ */ |
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182 | SV *errsv; /* $@ */ |
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183 | GV *deffh; /* default filehandle */ |
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184 | SV *irssv; /* $/ */ |
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185 | SV *irssv_sv; /* real $/ cache */ |
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186 | |
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187 | #define VAR(name,type) type name; |
234 | #define VAR(name,type) type name; |
188 | # include "state.h" |
235 | # include "state.h" |
189 | #undef VAR |
236 | #undef VAR |
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237 | } perl_slots; |
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238 | |
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239 | #define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
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240 | |
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241 | /* this is a structure representing a perl-level coroutine */ |
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242 | struct coro { |
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243 | /* the C coroutine allocated to this perl coroutine, if any */ |
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244 | coro_cctx *cctx; |
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245 | |
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246 | /* state data */ |
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247 | struct CoroSLF slf_frame; /* saved slf frame */ |
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248 | AV *mainstack; |
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249 | perl_slots *slot; /* basically the saved sp */ |
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250 | |
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251 | AV *args; /* data associated with this coroutine (initial args) */ |
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252 | int refcnt; /* coroutines are refcounted, yes */ |
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253 | int flags; /* CF_ flags */ |
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254 | HV *hv; /* the perl hash associated with this coro, if any */ |
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255 | void (*on_destroy)(pTHX_ struct coro *coro); |
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256 | |
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257 | /* statistics */ |
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258 | int usecount; /* number of transfers to this coro */ |
190 | |
259 | |
191 | /* coro process data */ |
260 | /* coro process data */ |
192 | int prio; |
261 | int prio; |
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262 | SV *throw; /* exception to be thrown */ |
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263 | |
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264 | /* async_pool */ |
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265 | SV *saved_deffh; |
193 | |
266 | |
194 | /* linked list */ |
267 | /* linked list */ |
195 | struct coro *next, *prev; |
268 | struct coro *next, *prev; |
196 | HV *hv; /* the perl hash associated with this coro, if any */ |
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197 | }; |
269 | }; |
198 | |
270 | |
199 | typedef struct coro *Coro__State; |
271 | typedef struct coro *Coro__State; |
200 | typedef struct coro *Coro__State_or_hashref; |
272 | typedef struct coro *Coro__State_or_hashref; |
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273 | |
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274 | /* the following variables are effectively part of the perl context */ |
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275 | /* and get copied between struct coro and these variables */ |
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276 | /* the mainr easonw e don't support windows process emulation */ |
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277 | static struct CoroSLF slf_frame; /* the current slf frame */ |
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278 | static SV *coro_throw; |
201 | |
279 | |
202 | /** Coro ********************************************************************/ |
280 | /** Coro ********************************************************************/ |
203 | |
281 | |
204 | #define PRIO_MAX 3 |
282 | #define PRIO_MAX 3 |
205 | #define PRIO_HIGH 1 |
283 | #define PRIO_HIGH 1 |
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208 | #define PRIO_IDLE -3 |
286 | #define PRIO_IDLE -3 |
209 | #define PRIO_MIN -4 |
287 | #define PRIO_MIN -4 |
210 | |
288 | |
211 | /* for Coro.pm */ |
289 | /* for Coro.pm */ |
212 | static SV *coro_current; |
290 | static SV *coro_current; |
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291 | static SV *coro_readyhook; |
213 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
292 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
214 | static int coro_nready; |
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215 | static struct coro *coro_first; |
293 | static struct coro *coro_first; |
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294 | #define coro_nready coroapi.nready |
216 | |
295 | |
217 | /** lowlevel stuff **********************************************************/ |
296 | /** lowlevel stuff **********************************************************/ |
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297 | |
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298 | static SV * |
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299 | coro_get_sv (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_sv (name, create); |
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304 | #endif |
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305 | return get_sv (name, create); |
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306 | } |
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307 | |
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308 | static AV * |
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309 | coro_get_av (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_av (name, create); |
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314 | #endif |
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315 | return get_av (name, create); |
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316 | } |
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317 | |
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318 | static HV * |
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319 | coro_get_hv (pTHX_ const char *name, int create) |
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320 | { |
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321 | #if PERL_VERSION_ATLEAST (5,10,0) |
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322 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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323 | get_hv (name, create); |
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324 | #endif |
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325 | return get_hv (name, create); |
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326 | } |
218 | |
327 | |
219 | static AV * |
328 | static AV * |
220 | coro_clone_padlist (pTHX_ CV *cv) |
329 | coro_clone_padlist (pTHX_ CV *cv) |
221 | { |
330 | { |
222 | AV *padlist = CvPADLIST (cv); |
331 | AV *padlist = CvPADLIST (cv); |
223 | AV *newpadlist, *newpad; |
332 | AV *newpadlist, *newpad; |
224 | |
333 | |
225 | newpadlist = newAV (); |
334 | newpadlist = newAV (); |
226 | AvREAL_off (newpadlist); |
335 | AvREAL_off (newpadlist); |
227 | #if PERL_VERSION_ATLEAST (5,9,0) |
336 | #if PERL_VERSION_ATLEAST (5,10,0) |
228 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
337 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
229 | #else |
338 | #else |
230 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
339 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
231 | #endif |
340 | #endif |
232 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
341 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
233 | --AvFILLp (padlist); |
342 | --AvFILLp (padlist); |
234 | |
343 | |
235 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
344 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
236 | av_store (newpadlist, 1, (SV *)newpad); |
345 | av_store (newpadlist, 1, (SV *)newpad); |
237 | |
346 | |
238 | return newpadlist; |
347 | return newpadlist; |
239 | } |
348 | } |
240 | |
349 | |
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270 | |
379 | |
271 | /* casting is fun. */ |
380 | /* casting is fun. */ |
272 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
381 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
273 | free_padlist (aTHX_ padlist); |
382 | free_padlist (aTHX_ padlist); |
274 | |
383 | |
275 | SvREFCNT_dec (av); |
384 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
276 | |
385 | |
277 | return 0; |
386 | return 0; |
278 | } |
387 | } |
279 | |
388 | |
280 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
389 | #define CORO_MAGIC_type_cv PERL_MAGIC_ext |
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390 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
281 | |
391 | |
282 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
392 | static MGVTBL coro_cv_vtbl = { |
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393 | 0, 0, 0, 0, |
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394 | coro_cv_free |
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395 | }; |
283 | |
396 | |
284 | #define CORO_MAGIC(cv) \ |
397 | #define CORO_MAGIC(sv, type) \ |
285 | SvMAGIC (cv) \ |
398 | expect_true (SvMAGIC (sv)) \ |
286 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
399 | ? expect_true (SvMAGIC (sv)->mg_type == type) \ |
287 | ? SvMAGIC (cv) \ |
400 | ? SvMAGIC (sv) \ |
288 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
401 | : mg_find (sv, type) \ |
289 | : 0 |
402 | : 0 |
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403 | |
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404 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
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405 | #define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
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406 | |
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407 | INLINE struct coro * |
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408 | SvSTATE_ (pTHX_ SV *coro) |
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409 | { |
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410 | HV *stash; |
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411 | MAGIC *mg; |
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412 | |
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413 | if (SvROK (coro)) |
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414 | coro = SvRV (coro); |
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415 | |
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416 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
|
|
417 | croak ("Coro::State object required"); |
|
|
418 | |
|
|
419 | stash = SvSTASH (coro); |
|
|
420 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
|
|
421 | { |
|
|
422 | /* very slow, but rare, check */ |
|
|
423 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
424 | croak ("Coro::State object required"); |
|
|
425 | } |
|
|
426 | |
|
|
427 | mg = CORO_MAGIC_state (coro); |
|
|
428 | return (struct coro *)mg->mg_ptr; |
|
|
429 | } |
|
|
430 | |
|
|
431 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
432 | |
|
|
433 | /* fastert than SvSTATE, but expects a coroutine hv */ |
|
|
434 | INLINE struct coro * |
|
|
435 | SvSTATE_hv (SV *sv) |
|
|
436 | { |
|
|
437 | MAGIC *mg = expect_true (SvMAGIC (sv)->mg_type == CORO_MAGIC_type_state) |
|
|
438 | ? SvMAGIC (sv) |
|
|
439 | : mg_find (sv, CORO_MAGIC_type_state); |
|
|
440 | |
|
|
441 | return (struct coro *)mg->mg_ptr; |
|
|
442 | } |
|
|
443 | |
|
|
444 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
290 | |
445 | |
291 | /* the next two functions merely cache the padlists */ |
446 | /* the next two functions merely cache the padlists */ |
292 | static void |
447 | static void |
293 | get_padlist (pTHX_ CV *cv) |
448 | get_padlist (pTHX_ CV *cv) |
294 | { |
449 | { |
295 | MAGIC *mg = CORO_MAGIC (cv); |
450 | MAGIC *mg = CORO_MAGIC_cv (cv); |
296 | AV *av; |
451 | AV *av; |
297 | |
452 | |
298 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
453 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
299 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
454 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
300 | else |
455 | else |
301 | { |
456 | { |
302 | #if CORO_PREFER_PERL_FUNCTIONS |
457 | #if CORO_PREFER_PERL_FUNCTIONS |
303 | /* this is probably cleaner, but also slower? */ |
458 | /* this is probably cleaner? but also slower! */ |
|
|
459 | /* in practise, it seems to be less stable */ |
304 | CV *cp = Perl_cv_clone (cv); |
460 | CV *cp = Perl_cv_clone (cv); |
305 | CvPADLIST (cv) = CvPADLIST (cp); |
461 | CvPADLIST (cv) = CvPADLIST (cp); |
306 | CvPADLIST (cp) = 0; |
462 | CvPADLIST (cp) = 0; |
307 | SvREFCNT_dec (cp); |
463 | SvREFCNT_dec (cp); |
308 | #else |
464 | #else |
… | |
… | |
312 | } |
468 | } |
313 | |
469 | |
314 | static void |
470 | static void |
315 | put_padlist (pTHX_ CV *cv) |
471 | put_padlist (pTHX_ CV *cv) |
316 | { |
472 | { |
317 | MAGIC *mg = CORO_MAGIC (cv); |
473 | MAGIC *mg = CORO_MAGIC_cv (cv); |
318 | AV *av; |
474 | AV *av; |
319 | |
475 | |
320 | if (!mg) |
476 | if (expect_false (!mg)) |
321 | { |
477 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
322 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
323 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
324 | mg->mg_virtual = &vtbl_coro; |
|
|
325 | mg->mg_obj = (SV *)newAV (); |
|
|
326 | } |
|
|
327 | |
478 | |
328 | av = (AV *)mg->mg_obj; |
479 | av = (AV *)mg->mg_obj; |
329 | |
480 | |
330 | if (AvFILLp (av) >= AvMAX (av)) |
481 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
331 | av_extend (av, AvMAX (av) + 1); |
482 | av_extend (av, AvMAX (av) + 1); |
332 | |
483 | |
333 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
484 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
334 | } |
485 | } |
335 | |
486 | |
336 | /** load & save, init *******************************************************/ |
487 | /** load & save, init *******************************************************/ |
337 | |
488 | |
338 | #define SB do { |
|
|
339 | #define SE } while (0) |
|
|
340 | |
|
|
341 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
|
|
342 | |
|
|
343 | static void |
489 | static void |
344 | load_perl (pTHX_ Coro__State c) |
490 | load_perl (pTHX_ Coro__State c) |
345 | { |
491 | { |
|
|
492 | perl_slots *slot = c->slot; |
|
|
493 | c->slot = 0; |
|
|
494 | |
|
|
495 | PL_mainstack = c->mainstack; |
|
|
496 | |
|
|
497 | GvSV (PL_defgv) = slot->defsv; |
|
|
498 | GvAV (PL_defgv) = slot->defav; |
|
|
499 | GvSV (PL_errgv) = slot->errsv; |
|
|
500 | GvSV (irsgv) = slot->irsgv; |
|
|
501 | |
346 | #define VAR(name,type) PL_ ## name = c->name; |
502 | #define VAR(name,type) PL_ ## name = slot->name; |
347 | # include "state.h" |
503 | # include "state.h" |
348 | #undef VAR |
504 | #undef VAR |
349 | |
|
|
350 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
|
|
351 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
|
|
352 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
353 | if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); |
|
|
354 | |
|
|
355 | if (c->irssv) |
|
|
356 | { |
|
|
357 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
358 | { |
|
|
359 | SvREFCNT_dec (c->irssv); |
|
|
360 | c->irssv = 0; |
|
|
361 | } |
|
|
362 | else |
|
|
363 | { |
|
|
364 | REPLACE_SV (PL_rs, c->irssv); |
|
|
365 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
366 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
367 | } |
|
|
368 | } |
|
|
369 | |
505 | |
370 | { |
506 | { |
371 | dSP; |
507 | dSP; |
|
|
508 | |
372 | CV *cv; |
509 | CV *cv; |
373 | |
510 | |
374 | /* now do the ugly restore mess */ |
511 | /* now do the ugly restore mess */ |
375 | while ((cv = (CV *)POPs)) |
512 | while (expect_true (cv = (CV *)POPs)) |
376 | { |
513 | { |
377 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
514 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
378 | CvDEPTH (cv) = PTR2IV (POPs); |
515 | CvDEPTH (cv) = PTR2IV (POPs); |
379 | CvPADLIST (cv) = (AV *)POPs; |
516 | CvPADLIST (cv) = (AV *)POPs; |
380 | } |
517 | } |
381 | |
518 | |
382 | PUTBACK; |
519 | PUTBACK; |
383 | } |
520 | } |
|
|
521 | |
|
|
522 | slf_frame = c->slf_frame; |
|
|
523 | coro_throw = c->throw; |
384 | } |
524 | } |
385 | |
525 | |
386 | static void |
526 | static void |
387 | save_perl (pTHX_ Coro__State c) |
527 | save_perl (pTHX_ Coro__State c) |
388 | { |
528 | { |
|
|
529 | c->throw = coro_throw; |
|
|
530 | c->slf_frame = slf_frame; |
|
|
531 | |
389 | { |
532 | { |
390 | dSP; |
533 | dSP; |
391 | I32 cxix = cxstack_ix; |
534 | I32 cxix = cxstack_ix; |
392 | PERL_CONTEXT *ccstk = cxstack; |
535 | PERL_CONTEXT *ccstk = cxstack; |
393 | PERL_SI *top_si = PL_curstackinfo; |
536 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
399 | |
542 | |
400 | XPUSHs (Nullsv); |
543 | XPUSHs (Nullsv); |
401 | /* this loop was inspired by pp_caller */ |
544 | /* this loop was inspired by pp_caller */ |
402 | for (;;) |
545 | for (;;) |
403 | { |
546 | { |
404 | while (cxix >= 0) |
547 | while (expect_true (cxix >= 0)) |
405 | { |
548 | { |
406 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
549 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
407 | |
550 | |
408 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
551 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
409 | { |
552 | { |
410 | CV *cv = cx->blk_sub.cv; |
553 | CV *cv = cx->blk_sub.cv; |
411 | |
554 | |
412 | if (CvDEPTH (cv)) |
555 | if (expect_true (CvDEPTH (cv))) |
413 | { |
556 | { |
414 | EXTEND (SP, 3); |
557 | EXTEND (SP, 3); |
415 | PUSHs ((SV *)CvPADLIST (cv)); |
558 | PUSHs ((SV *)CvPADLIST (cv)); |
416 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
559 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
417 | PUSHs ((SV *)cv); |
560 | PUSHs ((SV *)cv); |
418 | |
561 | |
419 | CvDEPTH (cv) = 0; |
562 | CvDEPTH (cv) = 0; |
420 | get_padlist (aTHX_ cv); |
563 | get_padlist (aTHX_ cv); |
421 | } |
564 | } |
422 | } |
565 | } |
423 | } |
566 | } |
424 | |
567 | |
425 | if (top_si->si_type == PERLSI_MAIN) |
568 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
426 | break; |
569 | break; |
427 | |
570 | |
428 | top_si = top_si->si_prev; |
571 | top_si = top_si->si_prev; |
429 | ccstk = top_si->si_cxstack; |
572 | ccstk = top_si->si_cxstack; |
430 | cxix = top_si->si_cxix; |
573 | cxix = top_si->si_cxix; |
431 | } |
574 | } |
432 | |
575 | |
433 | PUTBACK; |
576 | PUTBACK; |
434 | } |
577 | } |
435 | |
578 | |
436 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
579 | /* allocate some space on the context stack for our purposes */ |
437 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
580 | /* we manually unroll here, as usually 2 slots is enough */ |
438 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
581 | if (SLOT_COUNT >= 1) CXINC; |
439 | c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; |
582 | if (SLOT_COUNT >= 2) CXINC; |
440 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
583 | if (SLOT_COUNT >= 3) CXINC; |
|
|
584 | { |
|
|
585 | int i; |
|
|
586 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
587 | CXINC; |
|
|
588 | } |
|
|
589 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
441 | |
590 | |
|
|
591 | c->mainstack = PL_mainstack; |
|
|
592 | |
|
|
593 | { |
|
|
594 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
595 | |
|
|
596 | slot->defav = GvAV (PL_defgv); |
|
|
597 | slot->defsv = DEFSV; |
|
|
598 | slot->errsv = ERRSV; |
|
|
599 | slot->irsgv = GvSV (irsgv); |
|
|
600 | |
442 | #define VAR(name,type)c->name = PL_ ## name; |
601 | #define VAR(name,type) slot->name = PL_ ## name; |
443 | # include "state.h" |
602 | # include "state.h" |
444 | #undef VAR |
603 | #undef VAR |
|
|
604 | } |
445 | } |
605 | } |
446 | |
606 | |
447 | /* |
607 | /* |
448 | * allocate various perl stacks. This is an exact copy |
608 | * allocate various perl stacks. This is almost an exact copy |
449 | * of perl.c:init_stacks, except that it uses less memory |
609 | * of perl.c:init_stacks, except that it uses less memory |
450 | * on the (sometimes correct) assumption that coroutines do |
610 | * on the (sometimes correct) assumption that coroutines do |
451 | * not usually need a lot of stackspace. |
611 | * not usually need a lot of stackspace. |
452 | */ |
612 | */ |
453 | #if CORO_PREFER_PERL_FUNCTIONS |
613 | #if CORO_PREFER_PERL_FUNCTIONS |
454 | # define coro_init_stacks init_stacks |
614 | # define coro_init_stacks init_stacks |
455 | #else |
615 | #else |
456 | static void |
616 | static void |
457 | coro_init_stacks (pTHX) |
617 | coro_init_stacks (pTHX) |
458 | { |
618 | { |
459 | PL_curstackinfo = new_stackinfo(64, 6); |
619 | PL_curstackinfo = new_stackinfo(32, 8); |
460 | PL_curstackinfo->si_type = PERLSI_MAIN; |
620 | PL_curstackinfo->si_type = PERLSI_MAIN; |
461 | PL_curstack = PL_curstackinfo->si_stack; |
621 | PL_curstack = PL_curstackinfo->si_stack; |
462 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
622 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
463 | |
623 | |
464 | PL_stack_base = AvARRAY(PL_curstack); |
624 | PL_stack_base = AvARRAY(PL_curstack); |
465 | PL_stack_sp = PL_stack_base; |
625 | PL_stack_sp = PL_stack_base; |
466 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
626 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
467 | |
627 | |
468 | New(50,PL_tmps_stack,64,SV*); |
628 | New(50,PL_tmps_stack,32,SV*); |
469 | PL_tmps_floor = -1; |
629 | PL_tmps_floor = -1; |
470 | PL_tmps_ix = -1; |
630 | PL_tmps_ix = -1; |
471 | PL_tmps_max = 64; |
631 | PL_tmps_max = 32; |
472 | |
632 | |
473 | New(54,PL_markstack,16,I32); |
633 | New(54,PL_markstack,16,I32); |
474 | PL_markstack_ptr = PL_markstack; |
634 | PL_markstack_ptr = PL_markstack; |
475 | PL_markstack_max = PL_markstack + 16; |
635 | PL_markstack_max = PL_markstack + 16; |
476 | |
636 | |
477 | #ifdef SET_MARK_OFFSET |
637 | #ifdef SET_MARK_OFFSET |
478 | SET_MARK_OFFSET; |
638 | SET_MARK_OFFSET; |
479 | #endif |
639 | #endif |
480 | |
640 | |
481 | New(54,PL_scopestack,16,I32); |
641 | New(54,PL_scopestack,8,I32); |
482 | PL_scopestack_ix = 0; |
642 | PL_scopestack_ix = 0; |
483 | PL_scopestack_max = 16; |
643 | PL_scopestack_max = 8; |
484 | |
644 | |
485 | New(54,PL_savestack,64,ANY); |
645 | New(54,PL_savestack,24,ANY); |
486 | PL_savestack_ix = 0; |
646 | PL_savestack_ix = 0; |
487 | PL_savestack_max = 64; |
647 | PL_savestack_max = 24; |
488 | |
648 | |
489 | #if !PERL_VERSION_ATLEAST (5,9,0) |
649 | #if !PERL_VERSION_ATLEAST (5,10,0) |
490 | New(54,PL_retstack,4,OP*); |
650 | New(54,PL_retstack,4,OP*); |
491 | PL_retstack_ix = 0; |
651 | PL_retstack_ix = 0; |
492 | PL_retstack_max = 4; |
652 | PL_retstack_max = 4; |
493 | #endif |
653 | #endif |
494 | } |
654 | } |
… | |
… | |
496 | |
656 | |
497 | /* |
657 | /* |
498 | * destroy the stacks, the callchain etc... |
658 | * destroy the stacks, the callchain etc... |
499 | */ |
659 | */ |
500 | static void |
660 | static void |
501 | coro_destroy_stacks (pTHX) |
661 | coro_destruct_stacks (pTHX) |
502 | { |
662 | { |
503 | if (!IN_DESTRUCT) |
|
|
504 | { |
|
|
505 | /* restore all saved variables and stuff */ |
|
|
506 | LEAVE_SCOPE (0); |
|
|
507 | assert (PL_tmps_floor == -1); |
|
|
508 | |
|
|
509 | /* free all temporaries */ |
|
|
510 | FREETMPS; |
|
|
511 | assert (PL_tmps_ix == -1); |
|
|
512 | |
|
|
513 | /* unwind all extra stacks */ |
|
|
514 | POPSTACK_TO (PL_mainstack); |
|
|
515 | |
|
|
516 | /* unwind main stack */ |
|
|
517 | dounwind (-1); |
|
|
518 | } |
|
|
519 | |
|
|
520 | while (PL_curstackinfo->si_next) |
663 | while (PL_curstackinfo->si_next) |
521 | PL_curstackinfo = PL_curstackinfo->si_next; |
664 | PL_curstackinfo = PL_curstackinfo->si_next; |
522 | |
665 | |
523 | while (PL_curstackinfo) |
666 | while (PL_curstackinfo) |
524 | { |
667 | { |
… | |
… | |
534 | |
677 | |
535 | Safefree (PL_tmps_stack); |
678 | Safefree (PL_tmps_stack); |
536 | Safefree (PL_markstack); |
679 | Safefree (PL_markstack); |
537 | Safefree (PL_scopestack); |
680 | Safefree (PL_scopestack); |
538 | Safefree (PL_savestack); |
681 | Safefree (PL_savestack); |
539 | #if !PERL_VERSION_ATLEAST (5,9,0) |
682 | #if !PERL_VERSION_ATLEAST (5,10,0) |
540 | Safefree (PL_retstack); |
683 | Safefree (PL_retstack); |
541 | #endif |
684 | #endif |
542 | } |
685 | } |
543 | |
686 | |
544 | static size_t |
687 | static size_t |
545 | coro_rss (struct coro *coro) |
688 | coro_rss (pTHX_ struct coro *coro) |
546 | { |
689 | { |
547 | size_t rss = sizeof (coro); |
690 | size_t rss = sizeof (*coro); |
548 | |
691 | |
549 | if (coro->mainstack) |
692 | if (coro->mainstack) |
550 | { |
693 | { |
|
|
694 | perl_slots tmp_slot; |
|
|
695 | perl_slots *slot; |
|
|
696 | |
551 | if (coro->flags & CF_RUNNING) |
697 | if (coro->flags & CF_RUNNING) |
552 | { |
698 | { |
|
|
699 | slot = &tmp_slot; |
|
|
700 | |
553 | #define VAR(name,type)coro->name = PL_ ## name; |
701 | #define VAR(name,type) slot->name = PL_ ## name; |
554 | # include "state.h" |
702 | # include "state.h" |
555 | #undef VAR |
703 | #undef VAR |
556 | } |
704 | } |
|
|
705 | else |
|
|
706 | slot = coro->slot; |
557 | |
707 | |
|
|
708 | if (slot) |
|
|
709 | { |
558 | rss += sizeof (coro->curstackinfo); |
710 | rss += sizeof (slot->curstackinfo); |
559 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
560 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
711 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
561 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
712 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
562 | rss += coro->tmps_max * sizeof (SV *); |
713 | rss += slot->tmps_max * sizeof (SV *); |
563 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
714 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
564 | rss += coro->scopestack_max * sizeof (I32); |
715 | rss += slot->scopestack_max * sizeof (I32); |
565 | rss += coro->savestack_max * sizeof (ANY); |
716 | rss += slot->savestack_max * sizeof (ANY); |
566 | |
717 | |
567 | #if !PERL_VERSION_ATLEAST (5,9,0) |
718 | #if !PERL_VERSION_ATLEAST (5,10,0) |
568 | rss += coro->retstack_max * sizeof (OP *); |
719 | rss += slot->retstack_max * sizeof (OP *); |
569 | #endif |
720 | #endif |
|
|
721 | } |
570 | } |
722 | } |
571 | |
723 | |
572 | return rss; |
724 | return rss; |
573 | } |
725 | } |
574 | |
726 | |
575 | /** coroutine stack handling ************************************************/ |
727 | /** coroutine stack handling ************************************************/ |
576 | |
728 | |
|
|
729 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
730 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
731 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
732 | |
|
|
733 | /* apparently < 5.8.8 */ |
|
|
734 | #ifndef MgPV_nolen_const |
|
|
735 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
736 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
737 | (const char*)(mg)->mg_ptr) |
|
|
738 | #endif |
|
|
739 | |
|
|
740 | /* |
|
|
741 | * This overrides the default magic get method of %SIG elements. |
|
|
742 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
743 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
744 | * readback here. |
|
|
745 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
746 | * not expecting this to actually change the hook. This is a potential problem |
|
|
747 | * when a schedule happens then, but we ignore this. |
|
|
748 | */ |
577 | static void |
749 | static int |
|
|
750 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
751 | { |
|
|
752 | const char *s = MgPV_nolen_const (mg); |
|
|
753 | |
|
|
754 | if (*s == '_') |
|
|
755 | { |
|
|
756 | SV **svp = 0; |
|
|
757 | |
|
|
758 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
759 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
760 | |
|
|
761 | if (svp) |
|
|
762 | { |
|
|
763 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
764 | return 0; |
|
|
765 | } |
|
|
766 | } |
|
|
767 | |
|
|
768 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
769 | } |
|
|
770 | |
|
|
771 | static int |
|
|
772 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
773 | { |
|
|
774 | const char *s = MgPV_nolen_const (mg); |
|
|
775 | |
|
|
776 | if (*s == '_') |
|
|
777 | { |
|
|
778 | SV **svp = 0; |
|
|
779 | |
|
|
780 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
781 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
782 | |
|
|
783 | if (svp) |
|
|
784 | { |
|
|
785 | SV *old = *svp; |
|
|
786 | *svp = 0; |
|
|
787 | SvREFCNT_dec (old); |
|
|
788 | return 0; |
|
|
789 | } |
|
|
790 | } |
|
|
791 | |
|
|
792 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
793 | } |
|
|
794 | |
|
|
795 | static int |
|
|
796 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
797 | { |
|
|
798 | const char *s = MgPV_nolen_const (mg); |
|
|
799 | |
|
|
800 | if (*s == '_') |
|
|
801 | { |
|
|
802 | SV **svp = 0; |
|
|
803 | |
|
|
804 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
805 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
806 | |
|
|
807 | if (svp) |
|
|
808 | { |
|
|
809 | SV *old = *svp; |
|
|
810 | *svp = newSVsv (sv); |
|
|
811 | SvREFCNT_dec (old); |
|
|
812 | return 0; |
|
|
813 | } |
|
|
814 | } |
|
|
815 | |
|
|
816 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
817 | } |
|
|
818 | |
|
|
819 | static void |
|
|
820 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
821 | { |
|
|
822 | /* kind of mega-hacky, but works */ |
|
|
823 | ta->next = ta->prev = (struct coro *)ta; |
|
|
824 | } |
|
|
825 | |
|
|
826 | static int |
|
|
827 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
828 | { |
|
|
829 | return 0; |
|
|
830 | } |
|
|
831 | |
|
|
832 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
578 | setup_coro (pTHX_ struct coro *coro) |
833 | coro_setup (pTHX_ struct coro *coro) |
579 | { |
834 | { |
580 | /* |
835 | /* |
581 | * emulate part of the perl startup here. |
836 | * emulate part of the perl startup here. |
582 | */ |
837 | */ |
583 | coro_init_stacks (aTHX); |
838 | coro_init_stacks (aTHX); |
584 | |
839 | |
|
|
840 | PL_runops = RUNOPS_DEFAULT; |
585 | PL_curcop = &PL_compiling; |
841 | PL_curcop = &PL_compiling; |
586 | PL_in_eval = EVAL_NULL; |
842 | PL_in_eval = EVAL_NULL; |
587 | PL_comppad = 0; |
843 | PL_comppad = 0; |
588 | PL_curpm = 0; |
844 | PL_curpm = 0; |
|
|
845 | PL_curpad = 0; |
589 | PL_localizing = 0; |
846 | PL_localizing = 0; |
590 | PL_dirty = 0; |
847 | PL_dirty = 0; |
591 | PL_restartop = 0; |
848 | PL_restartop = 0; |
|
|
849 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
850 | PL_parser = 0; |
|
|
851 | #endif |
|
|
852 | |
|
|
853 | /* recreate the die/warn hooks */ |
|
|
854 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
855 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
|
|
856 | |
|
|
857 | GvSV (PL_defgv) = newSV (0); |
|
|
858 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
859 | GvSV (PL_errgv) = newSV (0); |
|
|
860 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
861 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
862 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
592 | |
863 | |
593 | { |
864 | { |
594 | dSP; |
865 | dSP; |
595 | LOGOP myop; |
866 | UNOP myop; |
596 | |
867 | |
597 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
598 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
599 | |
|
|
600 | Zero (&myop, 1, LOGOP); |
868 | Zero (&myop, 1, UNOP); |
601 | myop.op_next = Nullop; |
869 | myop.op_next = Nullop; |
602 | myop.op_flags = OPf_WANT_VOID; |
870 | myop.op_flags = OPf_WANT_VOID; |
603 | |
871 | |
604 | PUSHMARK (SP); |
872 | PUSHMARK (SP); |
605 | XPUSHs (av_shift (GvAV (PL_defgv))); |
873 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
606 | PUTBACK; |
874 | PUTBACK; |
607 | PL_op = (OP *)&myop; |
875 | PL_op = (OP *)&myop; |
608 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
876 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
609 | SPAGAIN; |
877 | SPAGAIN; |
610 | } |
878 | } |
611 | |
879 | |
612 | ENTER; /* necessary e.g. for dounwind */ |
880 | /* this newly created coroutine might be run on an existing cctx which most |
613 | } |
881 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
882 | */ |
|
|
883 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
884 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
614 | |
885 | |
|
|
886 | coro_throw = coro->throw; |
|
|
887 | } |
|
|
888 | |
615 | static void |
889 | static void |
|
|
890 | coro_destruct (pTHX_ struct coro *coro) |
|
|
891 | { |
|
|
892 | if (!IN_DESTRUCT) |
|
|
893 | { |
|
|
894 | /* restore all saved variables and stuff */ |
|
|
895 | LEAVE_SCOPE (0); |
|
|
896 | assert (PL_tmps_floor == -1); |
|
|
897 | |
|
|
898 | /* free all temporaries */ |
|
|
899 | FREETMPS; |
|
|
900 | assert (PL_tmps_ix == -1); |
|
|
901 | |
|
|
902 | /* unwind all extra stacks */ |
|
|
903 | POPSTACK_TO (PL_mainstack); |
|
|
904 | |
|
|
905 | /* unwind main stack */ |
|
|
906 | dounwind (-1); |
|
|
907 | } |
|
|
908 | |
|
|
909 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
910 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
911 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
912 | SvREFCNT_dec (PL_defoutgv); |
|
|
913 | SvREFCNT_dec (PL_rs); |
|
|
914 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
915 | |
|
|
916 | SvREFCNT_dec (PL_diehook); |
|
|
917 | SvREFCNT_dec (PL_warnhook); |
|
|
918 | |
|
|
919 | SvREFCNT_dec (coro->saved_deffh); |
|
|
920 | SvREFCNT_dec (coro_throw); |
|
|
921 | |
|
|
922 | coro_destruct_stacks (aTHX); |
|
|
923 | } |
|
|
924 | |
|
|
925 | INLINE void |
616 | free_coro_mortal (pTHX) |
926 | free_coro_mortal (pTHX) |
617 | { |
927 | { |
618 | if (coro_mortal) |
928 | if (expect_true (coro_mortal)) |
619 | { |
929 | { |
620 | SvREFCNT_dec (coro_mortal); |
930 | SvREFCNT_dec (coro_mortal); |
621 | coro_mortal = 0; |
931 | coro_mortal = 0; |
622 | } |
932 | } |
|
|
933 | } |
|
|
934 | |
|
|
935 | static int |
|
|
936 | runops_trace (pTHX) |
|
|
937 | { |
|
|
938 | COP *oldcop = 0; |
|
|
939 | int oldcxix = -2; |
|
|
940 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
|
|
941 | coro_cctx *cctx = coro->cctx; |
|
|
942 | |
|
|
943 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
944 | { |
|
|
945 | PERL_ASYNC_CHECK (); |
|
|
946 | |
|
|
947 | if (cctx->flags & CC_TRACE_ALL) |
|
|
948 | { |
|
|
949 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
950 | { |
|
|
951 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
952 | SV **bot, **top; |
|
|
953 | AV *av = newAV (); /* return values */ |
|
|
954 | SV **cb; |
|
|
955 | dSP; |
|
|
956 | |
|
|
957 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
958 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
959 | if (isGV (gv)) |
|
|
960 | gv_efullname3 (fullname, gv, 0); |
|
|
961 | |
|
|
962 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
963 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
964 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
965 | : bot; |
|
|
966 | |
|
|
967 | av_extend (av, top - bot); |
|
|
968 | while (bot < top) |
|
|
969 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
|
|
970 | |
|
|
971 | PL_runops = RUNOPS_DEFAULT; |
|
|
972 | ENTER; |
|
|
973 | SAVETMPS; |
|
|
974 | EXTEND (SP, 3); |
|
|
975 | PUSHMARK (SP); |
|
|
976 | PUSHs (&PL_sv_no); |
|
|
977 | PUSHs (fullname); |
|
|
978 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
979 | PUTBACK; |
|
|
980 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
981 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
982 | SPAGAIN; |
|
|
983 | FREETMPS; |
|
|
984 | LEAVE; |
|
|
985 | PL_runops = runops_trace; |
|
|
986 | } |
|
|
987 | |
|
|
988 | if (oldcop != PL_curcop) |
|
|
989 | { |
|
|
990 | oldcop = PL_curcop; |
|
|
991 | |
|
|
992 | if (PL_curcop != &PL_compiling) |
|
|
993 | { |
|
|
994 | SV **cb; |
|
|
995 | |
|
|
996 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
997 | { |
|
|
998 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
999 | |
|
|
1000 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
1001 | { |
|
|
1002 | runops_proc_t old_runops = PL_runops; |
|
|
1003 | dSP; |
|
|
1004 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
1005 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
1006 | |
|
|
1007 | if (isGV (gv)) |
|
|
1008 | gv_efullname3 (fullname, gv, 0); |
|
|
1009 | |
|
|
1010 | PL_runops = RUNOPS_DEFAULT; |
|
|
1011 | ENTER; |
|
|
1012 | SAVETMPS; |
|
|
1013 | EXTEND (SP, 3); |
|
|
1014 | PUSHMARK (SP); |
|
|
1015 | PUSHs (&PL_sv_yes); |
|
|
1016 | PUSHs (fullname); |
|
|
1017 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
1018 | PUTBACK; |
|
|
1019 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
1020 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1021 | SPAGAIN; |
|
|
1022 | FREETMPS; |
|
|
1023 | LEAVE; |
|
|
1024 | PL_runops = runops_trace; |
|
|
1025 | } |
|
|
1026 | |
|
|
1027 | oldcxix = cxstack_ix; |
|
|
1028 | } |
|
|
1029 | |
|
|
1030 | if (cctx->flags & CC_TRACE_LINE) |
|
|
1031 | { |
|
|
1032 | dSP; |
|
|
1033 | |
|
|
1034 | PL_runops = RUNOPS_DEFAULT; |
|
|
1035 | ENTER; |
|
|
1036 | SAVETMPS; |
|
|
1037 | EXTEND (SP, 3); |
|
|
1038 | PL_runops = RUNOPS_DEFAULT; |
|
|
1039 | PUSHMARK (SP); |
|
|
1040 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
1041 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
1042 | PUTBACK; |
|
|
1043 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
1044 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1045 | SPAGAIN; |
|
|
1046 | FREETMPS; |
|
|
1047 | LEAVE; |
|
|
1048 | PL_runops = runops_trace; |
|
|
1049 | } |
|
|
1050 | } |
|
|
1051 | } |
|
|
1052 | } |
|
|
1053 | } |
|
|
1054 | |
|
|
1055 | TAINT_NOT; |
|
|
1056 | return 0; |
|
|
1057 | } |
|
|
1058 | |
|
|
1059 | static void |
|
|
1060 | prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
|
|
1061 | { |
|
|
1062 | ta->prev = (struct coro *)cctx; |
|
|
1063 | ta->next = 0; |
623 | } |
1064 | } |
624 | |
1065 | |
625 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1066 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
626 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1067 | /* _cctx_init should be careful, as it could be called at almost any time */ |
627 | /* during execution of a perl program */ |
1068 | /* during execution of a perl program */ |
|
|
1069 | /* also initialises PL_top_env */ |
628 | static void NOINLINE |
1070 | static void NOINLINE |
629 | prepare_cctx (pTHX_ coro_cctx *cctx) |
1071 | cctx_prepare (pTHX_ coro_cctx *cctx) |
630 | { |
1072 | { |
631 | dSP; |
1073 | dSP; |
632 | LOGOP myop; |
1074 | UNOP myop; |
633 | |
1075 | |
|
|
1076 | PL_top_env = &PL_start_env; |
|
|
1077 | |
|
|
1078 | if (cctx->flags & CC_TRACE) |
|
|
1079 | PL_runops = runops_trace; |
|
|
1080 | |
634 | Zero (&myop, 1, LOGOP); |
1081 | Zero (&myop, 1, UNOP); |
635 | myop.op_next = PL_op; |
1082 | myop.op_next = PL_op; |
636 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1083 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
637 | |
1084 | |
638 | PUSHMARK (SP); |
1085 | PUSHMARK (SP); |
639 | EXTEND (SP, 2); |
1086 | EXTEND (SP, 2); |
640 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1087 | PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
641 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1088 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
642 | PUTBACK; |
1089 | PUTBACK; |
643 | PL_op = (OP *)&myop; |
1090 | PL_op = (OP *)&myop; |
644 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1091 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
645 | SPAGAIN; |
1092 | SPAGAIN; |
646 | } |
1093 | } |
647 | |
1094 | |
|
|
1095 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1096 | INLINE void |
|
|
1097 | transfer_tail (pTHX) |
|
|
1098 | { |
|
|
1099 | free_coro_mortal (aTHX); |
|
|
1100 | } |
|
|
1101 | |
648 | /* |
1102 | /* |
649 | * this is a _very_ stripped down perl interpreter ;) |
1103 | * this is a _very_ stripped down perl interpreter ;) |
650 | */ |
1104 | */ |
651 | static void |
1105 | static void |
652 | coro_run (void *arg) |
1106 | cctx_run (void *arg) |
653 | { |
1107 | { |
|
|
1108 | #ifdef USE_ITHREADS |
|
|
1109 | # if CORO_PTHREAD |
|
|
1110 | PERL_SET_CONTEXT (coro_thx); |
|
|
1111 | # endif |
|
|
1112 | #endif |
|
|
1113 | { |
654 | dTHX; |
1114 | dTHX; |
655 | |
1115 | |
656 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1116 | /* normally we would need to skip the entersub here */ |
657 | UNLOCK; |
1117 | /* not doing so will re-execute it, which is exactly what we want */ |
|
|
1118 | /* PL_nop = PL_nop->op_next */ |
658 | |
1119 | |
659 | PL_top_env = &PL_start_env; |
|
|
660 | |
|
|
661 | /* inject a fake subroutine call to cctx_init */ |
1120 | /* inject a fake subroutine call to cctx_init */ |
662 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
1121 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
663 | |
1122 | |
|
|
1123 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1124 | transfer_tail (aTHX); |
|
|
1125 | |
664 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1126 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
665 | PL_restartop = PL_op; |
1127 | PL_restartop = PL_op; |
666 | perl_run (PL_curinterp); |
1128 | perl_run (PL_curinterp); |
667 | |
1129 | |
668 | /* |
1130 | /* |
669 | * If perl-run returns we assume exit() was being called or the coro |
1131 | * If perl-run returns we assume exit() was being called or the coro |
670 | * fell off the end, which seems to be the only valid (non-bug) |
1132 | * fell off the end, which seems to be the only valid (non-bug) |
671 | * reason for perl_run to return. We try to exit by jumping to the |
1133 | * reason for perl_run to return. We try to exit by jumping to the |
672 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1134 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
673 | * coroutine as Coro has no such concept |
1135 | * coroutine as Coro has no such concept |
674 | */ |
1136 | */ |
675 | PL_top_env = main_top_env; |
1137 | PL_top_env = main_top_env; |
676 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1138 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1139 | } |
677 | } |
1140 | } |
678 | |
1141 | |
679 | static coro_cctx * |
1142 | static coro_cctx * |
680 | cctx_new () |
1143 | cctx_new () |
681 | { |
1144 | { |
682 | coro_cctx *cctx; |
1145 | coro_cctx *cctx; |
|
|
1146 | |
|
|
1147 | ++cctx_count; |
|
|
1148 | New (0, cctx, 1, coro_cctx); |
|
|
1149 | |
|
|
1150 | cctx->gen = cctx_gen; |
|
|
1151 | cctx->flags = 0; |
|
|
1152 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1153 | |
|
|
1154 | return cctx; |
|
|
1155 | } |
|
|
1156 | |
|
|
1157 | /* create a new cctx only suitable as source */ |
|
|
1158 | static coro_cctx * |
|
|
1159 | cctx_new_empty () |
|
|
1160 | { |
|
|
1161 | coro_cctx *cctx = cctx_new (); |
|
|
1162 | |
|
|
1163 | cctx->sptr = 0; |
|
|
1164 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1165 | |
|
|
1166 | return cctx; |
|
|
1167 | } |
|
|
1168 | |
|
|
1169 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1170 | static coro_cctx * |
|
|
1171 | cctx_new_run () |
|
|
1172 | { |
|
|
1173 | coro_cctx *cctx = cctx_new (); |
683 | void *stack_start; |
1174 | void *stack_start; |
684 | size_t stack_size; |
1175 | size_t stack_size; |
685 | |
1176 | |
686 | ++cctx_count; |
|
|
687 | |
|
|
688 | Newz (0, cctx, 1, coro_cctx); |
|
|
689 | |
|
|
690 | #if HAVE_MMAP |
1177 | #if HAVE_MMAP |
691 | |
|
|
692 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1178 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
693 | /* mmap supposedly does allocate-on-write for us */ |
1179 | /* mmap supposedly does allocate-on-write for us */ |
694 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1180 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
695 | |
1181 | |
696 | if (cctx->sptr != (void *)-1) |
1182 | if (cctx->sptr != (void *)-1) |
697 | { |
1183 | { |
698 | # if CORO_STACKGUARD |
1184 | #if CORO_STACKGUARD |
699 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1185 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
700 | # endif |
1186 | #endif |
701 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1187 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
702 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1188 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
703 | cctx->mapped = 1; |
1189 | cctx->flags |= CC_MAPPED; |
704 | } |
1190 | } |
705 | else |
1191 | else |
706 | #endif |
1192 | #endif |
707 | { |
1193 | { |
708 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1194 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
709 | New (0, cctx->sptr, coro_stacksize, long); |
1195 | New (0, cctx->sptr, cctx_stacksize, long); |
710 | |
1196 | |
711 | if (!cctx->sptr) |
1197 | if (!cctx->sptr) |
712 | { |
1198 | { |
713 | perror ("FATAL: unable to allocate stack for coroutine"); |
1199 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
714 | _exit (EXIT_FAILURE); |
1200 | _exit (EXIT_FAILURE); |
715 | } |
1201 | } |
716 | |
1202 | |
717 | stack_start = cctx->sptr; |
1203 | stack_start = cctx->sptr; |
718 | stack_size = cctx->ssize; |
1204 | stack_size = cctx->ssize; |
719 | } |
1205 | } |
720 | |
1206 | |
721 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1207 | #if CORO_USE_VALGRIND |
|
|
1208 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1209 | #endif |
|
|
1210 | |
722 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
1211 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
723 | |
1212 | |
724 | return cctx; |
1213 | return cctx; |
725 | } |
1214 | } |
726 | |
1215 | |
727 | static void |
1216 | static void |
… | |
… | |
729 | { |
1218 | { |
730 | if (!cctx) |
1219 | if (!cctx) |
731 | return; |
1220 | return; |
732 | |
1221 | |
733 | --cctx_count; |
1222 | --cctx_count; |
|
|
1223 | coro_destroy (&cctx->cctx); |
734 | |
1224 | |
|
|
1225 | /* coro_transfer creates new, empty cctx's */ |
|
|
1226 | if (cctx->sptr) |
|
|
1227 | { |
735 | #if CORO_USE_VALGRIND |
1228 | #if CORO_USE_VALGRIND |
736 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1229 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
737 | #endif |
1230 | #endif |
738 | |
1231 | |
739 | #if HAVE_MMAP |
1232 | #if HAVE_MMAP |
740 | if (cctx->mapped) |
1233 | if (cctx->flags & CC_MAPPED) |
741 | munmap (cctx->sptr, cctx->ssize); |
1234 | munmap (cctx->sptr, cctx->ssize); |
742 | else |
1235 | else |
743 | #endif |
1236 | #endif |
744 | Safefree (cctx->sptr); |
1237 | Safefree (cctx->sptr); |
|
|
1238 | } |
745 | |
1239 | |
746 | Safefree (cctx); |
1240 | Safefree (cctx); |
747 | } |
1241 | } |
|
|
1242 | |
|
|
1243 | /* wether this cctx should be destructed */ |
|
|
1244 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
748 | |
1245 | |
749 | static coro_cctx * |
1246 | static coro_cctx * |
750 | cctx_get (pTHX) |
1247 | cctx_get (pTHX) |
751 | { |
1248 | { |
752 | while (cctx_first) |
1249 | while (expect_true (cctx_first)) |
753 | { |
1250 | { |
754 | coro_cctx *cctx = cctx_first; |
1251 | coro_cctx *cctx = cctx_first; |
755 | cctx_first = cctx->next; |
1252 | cctx_first = cctx->next; |
756 | --cctx_idle; |
1253 | --cctx_idle; |
757 | |
1254 | |
758 | if (cctx->ssize >= coro_stacksize) |
1255 | if (expect_true (!CCTX_EXPIRED (cctx))) |
759 | return cctx; |
1256 | return cctx; |
760 | |
1257 | |
761 | cctx_destroy (cctx); |
1258 | cctx_destroy (cctx); |
762 | } |
1259 | } |
763 | |
1260 | |
764 | PL_op = PL_op->op_next; |
|
|
765 | return cctx_new (); |
1261 | return cctx_new_run (); |
766 | } |
1262 | } |
767 | |
1263 | |
768 | static void |
1264 | static void |
769 | cctx_put (coro_cctx *cctx) |
1265 | cctx_put (coro_cctx *cctx) |
770 | { |
1266 | { |
|
|
1267 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1268 | |
771 | /* free another cctx if overlimit */ |
1269 | /* free another cctx if overlimit */ |
772 | if (cctx_idle >= MAX_IDLE_CCTX) |
1270 | if (expect_false (cctx_idle >= cctx_max_idle)) |
773 | { |
1271 | { |
774 | coro_cctx *first = cctx_first; |
1272 | coro_cctx *first = cctx_first; |
775 | cctx_first = first->next; |
1273 | cctx_first = first->next; |
776 | --cctx_idle; |
1274 | --cctx_idle; |
777 | |
1275 | |
778 | assert (!first->inuse); |
|
|
779 | cctx_destroy (first); |
1276 | cctx_destroy (first); |
780 | } |
1277 | } |
781 | |
1278 | |
782 | ++cctx_idle; |
1279 | ++cctx_idle; |
783 | cctx->next = cctx_first; |
1280 | cctx->next = cctx_first; |
784 | cctx_first = cctx; |
1281 | cctx_first = cctx; |
785 | } |
1282 | } |
786 | |
1283 | |
787 | /** coroutine switching *****************************************************/ |
1284 | /** coroutine switching *****************************************************/ |
788 | |
1285 | |
789 | /* never call directly, always through the coro_state_transfer global variable */ |
1286 | static void |
790 | static void NOINLINE |
|
|
791 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1287 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
1288 | { |
|
|
1289 | /* TODO: throwing up here is considered harmful */ |
|
|
1290 | |
|
|
1291 | if (expect_true (prev != next)) |
|
|
1292 | { |
|
|
1293 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
|
|
1294 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
|
|
1295 | |
|
|
1296 | if (expect_false (next->flags & CF_RUNNING)) |
|
|
1297 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
|
|
1298 | |
|
|
1299 | if (expect_false (next->flags & CF_DESTROYED)) |
|
|
1300 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
|
|
1301 | |
|
|
1302 | #if !PERL_VERSION_ATLEAST (5,10,0) |
|
|
1303 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
|
|
1304 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1305 | #endif |
|
|
1306 | } |
|
|
1307 | } |
|
|
1308 | |
|
|
1309 | /* always use the TRANSFER macro */ |
|
|
1310 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
|
|
1311 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
792 | { |
1312 | { |
793 | dSTACKLEVEL; |
1313 | dSTACKLEVEL; |
794 | |
1314 | |
795 | /* sometimes transfer is only called to set idle_sp */ |
1315 | /* sometimes transfer is only called to set idle_sp */ |
796 | if (!next) |
1316 | if (expect_false (!next)) |
797 | { |
1317 | { |
798 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1318 | ((coro_cctx *)prev)->idle_sp = (void *)stacklevel; |
799 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1319 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
800 | } |
1320 | } |
801 | else if (prev != next) |
1321 | else if (expect_true (prev != next)) |
802 | { |
1322 | { |
803 | coro_cctx *prev__cctx; |
1323 | coro_cctx *prev__cctx; |
804 | |
1324 | |
805 | if (prev->flags & CF_NEW) |
1325 | if (expect_false (prev->flags & CF_NEW)) |
806 | { |
1326 | { |
807 | /* create a new empty context */ |
1327 | /* create a new empty/source context */ |
808 | Newz (0, prev->cctx, 1, coro_cctx); |
1328 | prev->cctx = cctx_new_empty (); |
809 | prev->cctx->inuse = 1; |
|
|
810 | prev->flags &= ~CF_NEW; |
1329 | prev->flags &= ~CF_NEW; |
811 | prev->flags |= CF_RUNNING; |
1330 | prev->flags |= CF_RUNNING; |
812 | } |
1331 | } |
813 | |
1332 | |
814 | /*TODO: must not croak here */ |
|
|
815 | if (!prev->flags & CF_RUNNING) |
|
|
816 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
817 | |
|
|
818 | if (next->flags & CF_RUNNING) |
|
|
819 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
820 | |
|
|
821 | if (next->flags & CF_DESTROYED) |
|
|
822 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
823 | |
|
|
824 | prev->flags &= ~CF_RUNNING; |
1333 | prev->flags &= ~CF_RUNNING; |
825 | next->flags |= CF_RUNNING; |
1334 | next->flags |= CF_RUNNING; |
826 | |
1335 | |
827 | LOCK; |
1336 | /* first get rid of the old state */ |
|
|
1337 | save_perl (aTHX_ prev); |
828 | |
1338 | |
829 | if (next->flags & CF_NEW) |
1339 | if (expect_false (next->flags & CF_NEW)) |
830 | { |
1340 | { |
831 | /* need to start coroutine */ |
1341 | /* need to start coroutine */ |
832 | next->flags &= ~CF_NEW; |
1342 | next->flags &= ~CF_NEW; |
833 | /* first get rid of the old state */ |
|
|
834 | save_perl (aTHX_ prev); |
|
|
835 | /* setup coroutine call */ |
1343 | /* setup coroutine call */ |
836 | setup_coro (aTHX_ next); |
1344 | coro_setup (aTHX_ next); |
837 | /* need a new stack */ |
|
|
838 | assert (!next->cctx); |
|
|
839 | } |
1345 | } |
840 | else |
1346 | else |
|
|
1347 | load_perl (aTHX_ next); |
|
|
1348 | |
|
|
1349 | prev__cctx = prev->cctx; |
|
|
1350 | |
|
|
1351 | /* possibly untie and reuse the cctx */ |
|
|
1352 | if (expect_true ( |
|
|
1353 | prev__cctx->idle_sp == (void *)stacklevel |
|
|
1354 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1355 | && !force_cctx |
|
|
1356 | )) |
841 | { |
1357 | { |
842 | /* coroutine already started */ |
1358 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
843 | save_perl (aTHX_ prev); |
1359 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
844 | load_perl (aTHX_ next); |
1360 | |
|
|
1361 | prev->cctx = 0; |
|
|
1362 | |
|
|
1363 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1364 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1365 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1366 | if (!next->cctx) |
|
|
1367 | next->cctx = cctx_get (aTHX); |
|
|
1368 | |
|
|
1369 | cctx_put (prev__cctx); |
845 | } |
1370 | } |
846 | |
1371 | |
847 | prev__cctx = prev->cctx; |
1372 | ++next->usecount; |
848 | |
1373 | |
849 | /* possibly "free" the cctx */ |
|
|
850 | if (prev__cctx->idle_sp == STACKLEVEL) |
|
|
851 | { |
|
|
852 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
|
|
853 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
|
|
854 | |
|
|
855 | prev->cctx = 0; |
|
|
856 | |
|
|
857 | cctx_put (prev__cctx); |
|
|
858 | prev__cctx->inuse = 0; |
|
|
859 | } |
|
|
860 | |
|
|
861 | if (!next->cctx) |
1374 | if (expect_true (!next->cctx)) |
862 | { |
|
|
863 | next->cctx = cctx_get (aTHX); |
1375 | next->cctx = cctx_get (aTHX); |
864 | assert (!next->cctx->inuse); |
|
|
865 | next->cctx->inuse = 1; |
|
|
866 | } |
|
|
867 | |
1376 | |
868 | if (prev__cctx != next->cctx) |
1377 | if (expect_false (prev__cctx != next->cctx)) |
869 | { |
1378 | { |
870 | prev__cctx->top_env = PL_top_env; |
1379 | prev__cctx->top_env = PL_top_env; |
871 | PL_top_env = next->cctx->top_env; |
1380 | PL_top_env = next->cctx->top_env; |
872 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1381 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
873 | } |
1382 | } |
874 | |
1383 | |
875 | free_coro_mortal (aTHX); |
1384 | transfer_tail (aTHX); |
876 | UNLOCK; |
|
|
877 | } |
1385 | } |
878 | } |
1386 | } |
879 | |
1387 | |
880 | struct transfer_args |
1388 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
881 | { |
|
|
882 | struct coro *prev, *next; |
|
|
883 | }; |
|
|
884 | |
|
|
885 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1389 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
886 | |
1390 | |
887 | /** high level stuff ********************************************************/ |
1391 | /** high level stuff ********************************************************/ |
888 | |
1392 | |
889 | static int |
1393 | static int |
890 | coro_state_destroy (pTHX_ struct coro *coro) |
1394 | coro_state_destroy (pTHX_ struct coro *coro) |
891 | { |
1395 | { |
892 | if (coro->flags & CF_DESTROYED) |
1396 | if (coro->flags & CF_DESTROYED) |
893 | return 0; |
1397 | return 0; |
|
|
1398 | |
|
|
1399 | if (coro->on_destroy) |
|
|
1400 | coro->on_destroy (aTHX_ coro); |
894 | |
1401 | |
895 | coro->flags |= CF_DESTROYED; |
1402 | coro->flags |= CF_DESTROYED; |
896 | |
1403 | |
897 | if (coro->flags & CF_READY) |
1404 | if (coro->flags & CF_READY) |
898 | { |
1405 | { |
899 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1406 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
900 | /* alternative: look through all ready queues and remove the coro */ |
1407 | /* alternative: look through all ready queues and remove the coro */ |
901 | LOCK; |
|
|
902 | --coro_nready; |
1408 | --coro_nready; |
903 | UNLOCK; |
|
|
904 | } |
1409 | } |
905 | else |
1410 | else |
906 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1411 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
907 | |
1412 | |
908 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1413 | if (coro->mainstack && coro->mainstack != main_mainstack) |
909 | { |
1414 | { |
910 | struct coro temp; |
1415 | struct coro temp; |
911 | |
1416 | |
912 | assert (!(coro->flags & CF_RUNNING)); |
1417 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
913 | |
|
|
914 | Zero (&temp, 1, struct coro); |
|
|
915 | temp.save = CORO_SAVE_ALL; |
|
|
916 | |
|
|
917 | if (coro->flags & CF_RUNNING) |
|
|
918 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
919 | |
1418 | |
920 | save_perl (aTHX_ &temp); |
1419 | save_perl (aTHX_ &temp); |
921 | load_perl (aTHX_ coro); |
1420 | load_perl (aTHX_ coro); |
922 | |
1421 | |
923 | coro_destroy_stacks (aTHX); |
1422 | coro_destruct (aTHX_ coro); |
924 | |
1423 | |
925 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
1424 | load_perl (aTHX_ &temp); |
926 | |
1425 | |
927 | coro->mainstack = 0; |
1426 | coro->slot = 0; |
928 | } |
1427 | } |
929 | |
1428 | |
930 | cctx_destroy (coro->cctx); |
1429 | cctx_destroy (coro->cctx); |
931 | SvREFCNT_dec (coro->args); |
1430 | SvREFCNT_dec (coro->args); |
932 | |
1431 | |
… | |
… | |
973 | #else |
1472 | #else |
974 | # define MGf_DUP 0 |
1473 | # define MGf_DUP 0 |
975 | #endif |
1474 | #endif |
976 | }; |
1475 | }; |
977 | |
1476 | |
978 | static struct coro * |
|
|
979 | SvSTATE_ (pTHX_ SV *coro) |
|
|
980 | { |
|
|
981 | HV *stash; |
|
|
982 | MAGIC *mg; |
|
|
983 | |
|
|
984 | if (SvROK (coro)) |
|
|
985 | coro = SvRV (coro); |
|
|
986 | |
|
|
987 | stash = SvSTASH (coro); |
|
|
988 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
989 | { |
|
|
990 | /* very slow, but rare, check */ |
|
|
991 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
992 | croak ("Coro::State object required"); |
|
|
993 | } |
|
|
994 | |
|
|
995 | mg = CORO_MAGIC (coro); |
|
|
996 | return (struct coro *)mg->mg_ptr; |
|
|
997 | } |
|
|
998 | |
|
|
999 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
1000 | |
|
|
1001 | static void |
1477 | static void |
1002 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1478 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1003 | { |
1479 | { |
1004 | ta->prev = SvSTATE (prev_sv); |
1480 | ta->prev = SvSTATE (prev_sv); |
1005 | ta->next = SvSTATE (next_sv); |
1481 | ta->next = SvSTATE (next_sv); |
|
|
1482 | TRANSFER_CHECK (*ta); |
1006 | } |
1483 | } |
1007 | |
1484 | |
1008 | static void |
1485 | static void |
1009 | api_transfer (SV *prev_sv, SV *next_sv) |
1486 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1010 | { |
1487 | { |
1011 | dTHX; |
|
|
1012 | struct transfer_args ta; |
1488 | struct coro_transfer_args ta; |
1013 | |
1489 | |
1014 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1490 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1015 | TRANSFER (ta); |
1491 | TRANSFER (ta, 1); |
1016 | } |
|
|
1017 | |
|
|
1018 | static int |
|
|
1019 | api_save (SV *coro_sv, int new_save) |
|
|
1020 | { |
|
|
1021 | dTHX; |
|
|
1022 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1023 | int old_save = coro->save; |
|
|
1024 | |
|
|
1025 | if (new_save >= 0) |
|
|
1026 | coro->save = new_save; |
|
|
1027 | |
|
|
1028 | return old_save; |
|
|
1029 | } |
1492 | } |
1030 | |
1493 | |
1031 | /** Coro ********************************************************************/ |
1494 | /** Coro ********************************************************************/ |
1032 | |
1495 | |
1033 | static void |
1496 | INLINE void |
1034 | coro_enq (pTHX_ SV *coro_sv) |
1497 | coro_enq (pTHX_ struct coro *coro) |
1035 | { |
1498 | { |
1036 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1499 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1037 | } |
1500 | } |
1038 | |
1501 | |
1039 | static SV * |
1502 | INLINE SV * |
1040 | coro_deq (pTHX_ int min_prio) |
1503 | coro_deq (pTHX) |
1041 | { |
1504 | { |
1042 | int prio = PRIO_MAX - PRIO_MIN; |
1505 | int prio; |
1043 | |
1506 | |
1044 | min_prio -= PRIO_MIN; |
|
|
1045 | if (min_prio < 0) |
|
|
1046 | min_prio = 0; |
|
|
1047 | |
|
|
1048 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1507 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1049 | if (AvFILLp (coro_ready [prio]) >= 0) |
1508 | if (AvFILLp (coro_ready [prio]) >= 0) |
1050 | return av_shift (coro_ready [prio]); |
1509 | return av_shift (coro_ready [prio]); |
1051 | |
1510 | |
1052 | return 0; |
1511 | return 0; |
1053 | } |
1512 | } |
1054 | |
1513 | |
1055 | static int |
1514 | static int |
1056 | api_ready (SV *coro_sv) |
1515 | api_ready (pTHX_ SV *coro_sv) |
1057 | { |
1516 | { |
1058 | dTHX; |
|
|
1059 | struct coro *coro; |
1517 | struct coro *coro; |
|
|
1518 | SV *sv_hook; |
|
|
1519 | void (*xs_hook)(void); |
1060 | |
1520 | |
1061 | if (SvROK (coro_sv)) |
1521 | if (SvROK (coro_sv)) |
1062 | coro_sv = SvRV (coro_sv); |
1522 | coro_sv = SvRV (coro_sv); |
1063 | |
1523 | |
1064 | coro = SvSTATE (coro_sv); |
1524 | coro = SvSTATE (coro_sv); |
… | |
… | |
1066 | if (coro->flags & CF_READY) |
1526 | if (coro->flags & CF_READY) |
1067 | return 0; |
1527 | return 0; |
1068 | |
1528 | |
1069 | coro->flags |= CF_READY; |
1529 | coro->flags |= CF_READY; |
1070 | |
1530 | |
1071 | LOCK; |
1531 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1072 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1532 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1533 | |
|
|
1534 | coro_enq (aTHX_ coro); |
1073 | ++coro_nready; |
1535 | ++coro_nready; |
1074 | UNLOCK; |
1536 | |
|
|
1537 | if (sv_hook) |
|
|
1538 | { |
|
|
1539 | dSP; |
|
|
1540 | |
|
|
1541 | ENTER; |
|
|
1542 | SAVETMPS; |
|
|
1543 | |
|
|
1544 | PUSHMARK (SP); |
|
|
1545 | PUTBACK; |
|
|
1546 | call_sv (sv_hook, G_DISCARD); |
|
|
1547 | SPAGAIN; |
|
|
1548 | |
|
|
1549 | FREETMPS; |
|
|
1550 | LEAVE; |
|
|
1551 | } |
|
|
1552 | |
|
|
1553 | if (xs_hook) |
|
|
1554 | xs_hook (); |
1075 | |
1555 | |
1076 | return 1; |
1556 | return 1; |
1077 | } |
1557 | } |
1078 | |
1558 | |
1079 | static int |
1559 | static int |
1080 | api_is_ready (SV *coro_sv) |
1560 | api_is_ready (pTHX_ SV *coro_sv) |
1081 | { |
1561 | { |
1082 | dTHX; |
|
|
1083 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1562 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1084 | } |
1563 | } |
1085 | |
1564 | |
1086 | static void |
1565 | INLINE void |
1087 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1566 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1088 | { |
1567 | { |
1089 | SV *prev_sv, *next_sv; |
1568 | SV *prev_sv, *next_sv; |
1090 | |
1569 | |
1091 | for (;;) |
1570 | for (;;) |
1092 | { |
1571 | { |
1093 | LOCK; |
|
|
1094 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
1572 | next_sv = coro_deq (aTHX); |
1095 | |
1573 | |
1096 | /* nothing to schedule: call the idle handler */ |
1574 | /* nothing to schedule: call the idle handler */ |
1097 | if (!next_sv) |
1575 | if (expect_false (!next_sv)) |
1098 | { |
1576 | { |
1099 | dSP; |
1577 | dSP; |
1100 | UNLOCK; |
|
|
1101 | |
1578 | |
1102 | ENTER; |
1579 | ENTER; |
1103 | SAVETMPS; |
1580 | SAVETMPS; |
1104 | |
1581 | |
1105 | PUSHMARK (SP); |
1582 | PUSHMARK (SP); |
1106 | PUTBACK; |
1583 | PUTBACK; |
1107 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1584 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1585 | SPAGAIN; |
1108 | |
1586 | |
1109 | FREETMPS; |
1587 | FREETMPS; |
1110 | LEAVE; |
1588 | LEAVE; |
1111 | continue; |
1589 | continue; |
1112 | } |
1590 | } |
1113 | |
1591 | |
1114 | ta->next = SvSTATE (next_sv); |
1592 | ta->next = SvSTATE_hv (next_sv); |
1115 | |
1593 | |
1116 | /* cannot transfer to destroyed coros, skip and look for next */ |
1594 | /* cannot transfer to destroyed coros, skip and look for next */ |
1117 | if (ta->next->flags & CF_DESTROYED) |
1595 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1118 | { |
1596 | { |
1119 | UNLOCK; |
|
|
1120 | SvREFCNT_dec (next_sv); |
1597 | SvREFCNT_dec (next_sv); |
1121 | /* coro_nready is already taken care of by destroy */ |
1598 | /* coro_nready has already been taken care of by destroy */ |
1122 | continue; |
1599 | continue; |
1123 | } |
1600 | } |
1124 | |
1601 | |
1125 | --coro_nready; |
1602 | --coro_nready; |
1126 | UNLOCK; |
|
|
1127 | break; |
1603 | break; |
1128 | } |
1604 | } |
1129 | |
1605 | |
1130 | /* free this only after the transfer */ |
1606 | /* free this only after the transfer */ |
1131 | prev_sv = SvRV (coro_current); |
1607 | prev_sv = SvRV (coro_current); |
|
|
1608 | ta->prev = SvSTATE_hv (prev_sv); |
|
|
1609 | TRANSFER_CHECK (*ta); |
|
|
1610 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
|
|
1611 | ta->next->flags &= ~CF_READY; |
1132 | SvRV_set (coro_current, next_sv); |
1612 | SvRV_set (coro_current, next_sv); |
1133 | ta->prev = SvSTATE (prev_sv); |
|
|
1134 | |
1613 | |
1135 | assert (ta->next->flags & CF_READY); |
|
|
1136 | ta->next->flags &= ~CF_READY; |
|
|
1137 | |
|
|
1138 | LOCK; |
|
|
1139 | free_coro_mortal (aTHX); |
1614 | free_coro_mortal (aTHX); |
1140 | coro_mortal = prev_sv; |
1615 | coro_mortal = prev_sv; |
1141 | UNLOCK; |
|
|
1142 | } |
1616 | } |
1143 | |
1617 | |
1144 | static void |
1618 | INLINE void |
1145 | prepare_cede (pTHX_ struct transfer_args *ta) |
1619 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1146 | { |
1620 | { |
1147 | api_ready (coro_current); |
1621 | api_ready (aTHX_ coro_current); |
1148 | prepare_schedule (aTHX_ ta); |
1622 | prepare_schedule (aTHX_ ta); |
1149 | } |
1623 | } |
1150 | |
1624 | |
|
|
1625 | INLINE void |
|
|
1626 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1627 | { |
|
|
1628 | SV *prev = SvRV (coro_current); |
|
|
1629 | |
|
|
1630 | if (coro_nready) |
|
|
1631 | { |
|
|
1632 | prepare_schedule (aTHX_ ta); |
|
|
1633 | api_ready (aTHX_ prev); |
|
|
1634 | } |
|
|
1635 | else |
|
|
1636 | prepare_nop (aTHX_ ta); |
|
|
1637 | } |
|
|
1638 | |
|
|
1639 | static void |
|
|
1640 | api_schedule (pTHX) |
|
|
1641 | { |
|
|
1642 | struct coro_transfer_args ta; |
|
|
1643 | |
|
|
1644 | prepare_schedule (aTHX_ &ta); |
|
|
1645 | TRANSFER (ta, 1); |
|
|
1646 | } |
|
|
1647 | |
1151 | static int |
1648 | static int |
1152 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1649 | api_cede (pTHX) |
1153 | { |
1650 | { |
1154 | if (coro_nready) |
1651 | struct coro_transfer_args ta; |
1155 | { |
1652 | |
1156 | SV *prev = SvRV (coro_current); |
|
|
1157 | prepare_schedule (aTHX_ ta); |
1653 | prepare_cede (aTHX_ &ta); |
1158 | api_ready (prev); |
1654 | |
|
|
1655 | if (expect_true (ta.prev != ta.next)) |
|
|
1656 | { |
|
|
1657 | TRANSFER (ta, 1); |
1159 | return 1; |
1658 | return 1; |
1160 | } |
1659 | } |
1161 | else |
1660 | else |
1162 | return 0; |
1661 | return 0; |
1163 | } |
1662 | } |
1164 | |
1663 | |
1165 | static void |
|
|
1166 | api_schedule (void) |
|
|
1167 | { |
|
|
1168 | dTHX; |
|
|
1169 | struct transfer_args ta; |
|
|
1170 | |
|
|
1171 | prepare_schedule (aTHX_ &ta); |
|
|
1172 | TRANSFER (ta); |
|
|
1173 | } |
|
|
1174 | |
|
|
1175 | static int |
1664 | static int |
1176 | api_cede (void) |
1665 | api_cede_notself (pTHX) |
1177 | { |
1666 | { |
1178 | dTHX; |
1667 | if (coro_nready) |
|
|
1668 | { |
1179 | struct transfer_args ta; |
1669 | struct coro_transfer_args ta; |
1180 | |
1670 | |
1181 | prepare_cede (aTHX_ &ta); |
1671 | prepare_cede_notself (aTHX_ &ta); |
1182 | |
|
|
1183 | if (ta.prev != ta.next) |
|
|
1184 | { |
|
|
1185 | TRANSFER (ta); |
1672 | TRANSFER (ta, 1); |
1186 | return 1; |
1673 | return 1; |
1187 | } |
1674 | } |
1188 | else |
1675 | else |
1189 | return 0; |
1676 | return 0; |
1190 | } |
1677 | } |
1191 | |
1678 | |
|
|
1679 | static void |
|
|
1680 | api_trace (pTHX_ SV *coro_sv, int flags) |
|
|
1681 | { |
|
|
1682 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1683 | |
|
|
1684 | if (flags & CC_TRACE) |
|
|
1685 | { |
|
|
1686 | if (!coro->cctx) |
|
|
1687 | coro->cctx = cctx_new_run (); |
|
|
1688 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1689 | croak ("cannot enable tracing on coroutine with custom stack,"); |
|
|
1690 | |
|
|
1691 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1692 | } |
|
|
1693 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1694 | { |
|
|
1695 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1696 | |
|
|
1697 | if (coro->flags & CF_RUNNING) |
|
|
1698 | PL_runops = RUNOPS_DEFAULT; |
|
|
1699 | else |
|
|
1700 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1701 | } |
|
|
1702 | } |
|
|
1703 | |
|
|
1704 | /*****************************************************************************/ |
|
|
1705 | /* PerlIO::cede */ |
|
|
1706 | |
|
|
1707 | typedef struct |
|
|
1708 | { |
|
|
1709 | PerlIOBuf base; |
|
|
1710 | NV next, every; |
|
|
1711 | } PerlIOCede; |
|
|
1712 | |
|
|
1713 | static IV |
|
|
1714 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
1715 | { |
|
|
1716 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1717 | |
|
|
1718 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
1719 | self->next = nvtime () + self->every; |
|
|
1720 | |
|
|
1721 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
1722 | } |
|
|
1723 | |
|
|
1724 | static SV * |
|
|
1725 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
1726 | { |
|
|
1727 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1728 | |
|
|
1729 | return newSVnv (self->every); |
|
|
1730 | } |
|
|
1731 | |
|
|
1732 | static IV |
|
|
1733 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
1734 | { |
|
|
1735 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
1736 | double now = nvtime (); |
|
|
1737 | |
|
|
1738 | if (now >= self->next) |
|
|
1739 | { |
|
|
1740 | api_cede (aTHX); |
|
|
1741 | self->next = now + self->every; |
|
|
1742 | } |
|
|
1743 | |
|
|
1744 | return PerlIOBuf_flush (aTHX_ f); |
|
|
1745 | } |
|
|
1746 | |
|
|
1747 | static PerlIO_funcs PerlIO_cede = |
|
|
1748 | { |
|
|
1749 | sizeof(PerlIO_funcs), |
|
|
1750 | "cede", |
|
|
1751 | sizeof(PerlIOCede), |
|
|
1752 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
1753 | PerlIOCede_pushed, |
|
|
1754 | PerlIOBuf_popped, |
|
|
1755 | PerlIOBuf_open, |
|
|
1756 | PerlIOBase_binmode, |
|
|
1757 | PerlIOCede_getarg, |
|
|
1758 | PerlIOBase_fileno, |
|
|
1759 | PerlIOBuf_dup, |
|
|
1760 | PerlIOBuf_read, |
|
|
1761 | PerlIOBuf_unread, |
|
|
1762 | PerlIOBuf_write, |
|
|
1763 | PerlIOBuf_seek, |
|
|
1764 | PerlIOBuf_tell, |
|
|
1765 | PerlIOBuf_close, |
|
|
1766 | PerlIOCede_flush, |
|
|
1767 | PerlIOBuf_fill, |
|
|
1768 | PerlIOBase_eof, |
|
|
1769 | PerlIOBase_error, |
|
|
1770 | PerlIOBase_clearerr, |
|
|
1771 | PerlIOBase_setlinebuf, |
|
|
1772 | PerlIOBuf_get_base, |
|
|
1773 | PerlIOBuf_bufsiz, |
|
|
1774 | PerlIOBuf_get_ptr, |
|
|
1775 | PerlIOBuf_get_cnt, |
|
|
1776 | PerlIOBuf_set_ptrcnt, |
|
|
1777 | }; |
|
|
1778 | |
|
|
1779 | /*****************************************************************************/ |
|
|
1780 | |
|
|
1781 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1782 | static const CV *slf_cv; |
|
|
1783 | static SV **slf_argv; |
|
|
1784 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1785 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1786 | |
|
|
1787 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1788 | /* recreate the stack frame as perl will on following calls */ |
|
|
1789 | /* since entersub cleared the stack */ |
|
|
1790 | static OP * |
|
|
1791 | pp_restore (pTHX) |
|
|
1792 | { |
|
|
1793 | int i; |
|
|
1794 | SV **SP = PL_stack_base + slf_ax; |
|
|
1795 | |
|
|
1796 | PUSHMARK (SP); |
|
|
1797 | |
|
|
1798 | EXTEND (SP, slf_argc + 1); |
|
|
1799 | |
|
|
1800 | for (i = 0; i < slf_argc; ++i) |
|
|
1801 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1802 | |
|
|
1803 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1804 | |
|
|
1805 | RETURNOP (slf_restore.op_first); |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | static void |
|
|
1809 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1810 | { |
|
|
1811 | prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
|
|
1812 | } |
|
|
1813 | |
|
|
1814 | static void |
|
|
1815 | slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1816 | { |
|
|
1817 | assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
|
|
1818 | |
|
|
1819 | frame->prepare = slf_prepare_set_stacklevel; |
|
|
1820 | frame->check = slf_check_nop; |
|
|
1821 | frame->data = (void *)SvIV (arg [0]); |
|
|
1822 | } |
|
|
1823 | |
|
|
1824 | static void |
|
|
1825 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1826 | { |
|
|
1827 | SV **arg = (SV **)slf_frame.data; |
|
|
1828 | |
|
|
1829 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1830 | } |
|
|
1831 | |
|
|
1832 | static void |
|
|
1833 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1834 | { |
|
|
1835 | if (items != 2) |
|
|
1836 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1837 | |
|
|
1838 | frame->prepare = slf_prepare_transfer; |
|
|
1839 | frame->check = slf_check_nop; |
|
|
1840 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1841 | } |
|
|
1842 | |
|
|
1843 | static void |
|
|
1844 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1845 | { |
|
|
1846 | frame->prepare = prepare_schedule; |
|
|
1847 | frame->check = slf_check_nop; |
|
|
1848 | } |
|
|
1849 | |
|
|
1850 | static void |
|
|
1851 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1852 | { |
|
|
1853 | frame->prepare = prepare_cede; |
|
|
1854 | frame->check = slf_check_nop; |
|
|
1855 | } |
|
|
1856 | |
|
|
1857 | static void |
|
|
1858 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1859 | { |
|
|
1860 | frame->prepare = prepare_cede_notself; |
|
|
1861 | frame->check = slf_check_nop; |
|
|
1862 | } |
|
|
1863 | |
|
|
1864 | /* we hijack an hopefully unused CV flag for our purposes */ |
|
|
1865 | #define CVf_SLF 0x4000 |
|
|
1866 | |
|
|
1867 | /* |
|
|
1868 | * these not obviously related functions are all rolled into one |
|
|
1869 | * function to increase chances that they all will call transfer with the same |
|
|
1870 | * stack offset |
|
|
1871 | * SLF stands for "schedule-like-function". |
|
|
1872 | */ |
|
|
1873 | static OP * |
|
|
1874 | pp_slf (pTHX) |
|
|
1875 | { |
|
|
1876 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1877 | |
|
|
1878 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1879 | /* the latter happens when a new coro has been started */ |
|
|
1880 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1881 | if (expect_true (!slf_frame.prepare)) |
|
|
1882 | { |
|
|
1883 | /* first iteration */ |
|
|
1884 | dSP; |
|
|
1885 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1886 | int items = SP - arg; /* args without function object */ |
|
|
1887 | SV *gv = *sp; |
|
|
1888 | |
|
|
1889 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1890 | /* for us, divert to the real entersub */ |
|
|
1891 | if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1892 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1893 | |
|
|
1894 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1895 | { |
|
|
1896 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1897 | AV *av = GvAV (PL_defgv); |
|
|
1898 | arg = AvARRAY (av); |
|
|
1899 | items = AvFILLp (av) + 1; |
|
|
1900 | } |
|
|
1901 | |
|
|
1902 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1903 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1904 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1905 | |
|
|
1906 | /* pop args */ |
|
|
1907 | SP = PL_stack_base + POPMARK; |
|
|
1908 | |
|
|
1909 | PUTBACK; |
|
|
1910 | } |
|
|
1911 | |
|
|
1912 | /* now that we have a slf_frame, interpret it! */ |
|
|
1913 | /* we use a callback system not to make the code needlessly */ |
|
|
1914 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1915 | |
|
|
1916 | do |
|
|
1917 | { |
|
|
1918 | struct coro_transfer_args ta; |
|
|
1919 | |
|
|
1920 | slf_frame.prepare (aTHX_ &ta); |
|
|
1921 | TRANSFER (ta, 0); |
|
|
1922 | |
|
|
1923 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1924 | } |
|
|
1925 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1926 | |
|
|
1927 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1928 | |
|
|
1929 | /* return value handling - mostly like entersub */ |
|
|
1930 | { |
|
|
1931 | dSP; |
|
|
1932 | SV **bot = PL_stack_base + checkmark; |
|
|
1933 | int gimme = GIMME_V; |
|
|
1934 | |
|
|
1935 | /* make sure we put something on the stack in scalar context */ |
|
|
1936 | if (gimme == G_SCALAR) |
|
|
1937 | { |
|
|
1938 | if (sp == bot) |
|
|
1939 | XPUSHs (&PL_sv_undef); |
|
|
1940 | |
|
|
1941 | SP = bot + 1; |
|
|
1942 | } |
|
|
1943 | |
|
|
1944 | PUTBACK; |
|
|
1945 | } |
|
|
1946 | |
|
|
1947 | /* exception handling */ |
|
|
1948 | if (expect_false (coro_throw)) |
|
|
1949 | { |
|
|
1950 | SV *exception = sv_2mortal (coro_throw); |
|
|
1951 | |
|
|
1952 | coro_throw = 0; |
|
|
1953 | sv_setsv (ERRSV, exception); |
|
|
1954 | croak (0); |
|
|
1955 | } |
|
|
1956 | |
|
|
1957 | return NORMAL; |
|
|
1958 | } |
|
|
1959 | |
|
|
1960 | static void |
|
|
1961 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
1962 | { |
|
|
1963 | int i; |
|
|
1964 | SV **arg = PL_stack_base + ax; |
|
|
1965 | int items = PL_stack_sp - arg + 1; |
|
|
1966 | |
|
|
1967 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
1968 | |
|
|
1969 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
1970 | && PL_op->op_ppaddr != pp_slf) |
|
|
1971 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
1972 | |
|
|
1973 | CvFLAGS (cv) |= CVf_SLF; |
|
|
1974 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
1975 | slf_cv = cv; |
|
|
1976 | |
|
|
1977 | /* we patch the op, and then re-run the whole call */ |
|
|
1978 | /* we have to put the same argument on the stack for this to work */ |
|
|
1979 | /* and this will be done by pp_restore */ |
|
|
1980 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
1981 | slf_restore.op_type = OP_CUSTOM; |
|
|
1982 | slf_restore.op_ppaddr = pp_restore; |
|
|
1983 | slf_restore.op_first = PL_op; |
|
|
1984 | |
|
|
1985 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
1986 | |
|
|
1987 | if (PL_op->op_flags & OPf_STACKED) |
|
|
1988 | { |
|
|
1989 | if (items > slf_arga) |
|
|
1990 | { |
|
|
1991 | slf_arga = items; |
|
|
1992 | free (slf_argv); |
|
|
1993 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
1994 | } |
|
|
1995 | |
|
|
1996 | slf_argc = items; |
|
|
1997 | |
|
|
1998 | for (i = 0; i < items; ++i) |
|
|
1999 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2000 | } |
|
|
2001 | else |
|
|
2002 | slf_argc = 0; |
|
|
2003 | |
|
|
2004 | PL_op->op_ppaddr = pp_slf; |
|
|
2005 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
2006 | |
|
|
2007 | PL_op = (OP *)&slf_restore; |
|
|
2008 | } |
|
|
2009 | |
|
|
2010 | /*****************************************************************************/ |
|
|
2011 | |
|
|
2012 | static void |
|
|
2013 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2014 | { |
|
|
2015 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2016 | IV count = SvIVX (count_sv); |
|
|
2017 | |
|
|
2018 | count += adjust; |
|
|
2019 | SvIVX (count_sv) = count; |
|
|
2020 | |
|
|
2021 | /* now wake up as many waiters as are expected to lock */ |
|
|
2022 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2023 | { |
|
|
2024 | SV *cb; |
|
|
2025 | |
|
|
2026 | /* swap first two elements so we can shift a waiter */ |
|
|
2027 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2028 | AvARRAY (av)[1] = count_sv; |
|
|
2029 | cb = av_shift (av); |
|
|
2030 | |
|
|
2031 | if (SvOBJECT (cb)) |
|
|
2032 | api_ready (aTHX_ cb); |
|
|
2033 | else |
|
|
2034 | croak ("callbacks not yet supported"); |
|
|
2035 | |
|
|
2036 | SvREFCNT_dec (cb); |
|
|
2037 | |
|
|
2038 | --count; |
|
|
2039 | } |
|
|
2040 | } |
|
|
2041 | |
|
|
2042 | static void |
|
|
2043 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2044 | { |
|
|
2045 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2046 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2047 | } |
|
|
2048 | |
1192 | static int |
2049 | static int |
1193 | api_cede_notself (void) |
2050 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
1194 | { |
2051 | { |
1195 | dTHX; |
2052 | AV *av = (AV *)frame->data; |
1196 | struct transfer_args ta; |
2053 | SV *count_sv = AvARRAY (av)[0]; |
1197 | |
2054 | |
1198 | if (prepare_cede_notself (aTHX_ &ta)) |
2055 | if (SvIVX (count_sv) > 0) |
|
|
2056 | { |
|
|
2057 | SvSTATE_current->on_destroy = 0; |
|
|
2058 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2059 | return 0; |
1199 | { |
2060 | } |
1200 | TRANSFER (ta); |
2061 | else |
|
|
2062 | { |
|
|
2063 | int i; |
|
|
2064 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2065 | /* waiters list and only add us if we aren't in there already */ |
|
|
2066 | /* this avoids some degenerate memory usage cases */ |
|
|
2067 | |
|
|
2068 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2069 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2070 | return 1; |
|
|
2071 | |
|
|
2072 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
1201 | return 1; |
2073 | return 1; |
1202 | } |
2074 | } |
|
|
2075 | } |
|
|
2076 | |
|
|
2077 | static void |
|
|
2078 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2079 | { |
|
|
2080 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2081 | |
|
|
2082 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2083 | { |
|
|
2084 | frame->data = (void *)av; |
|
|
2085 | frame->prepare = prepare_nop; |
|
|
2086 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2087 | } |
1203 | else |
2088 | else |
1204 | return 0; |
2089 | { |
1205 | } |
2090 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
1206 | |
2091 | |
|
|
2092 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2093 | frame->prepare = prepare_schedule; |
|
|
2094 | |
|
|
2095 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2096 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2097 | assert (!SvSTATE_current->on_destroy);//D |
|
|
2098 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2099 | } |
|
|
2100 | |
|
|
2101 | frame->check = slf_check_semaphore_down; |
|
|
2102 | |
|
|
2103 | } |
|
|
2104 | |
|
|
2105 | /*****************************************************************************/ |
|
|
2106 | |
|
|
2107 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
2108 | |
|
|
2109 | /* create a closure from XS, returns a code reference */ |
|
|
2110 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
2111 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
2112 | static SV * |
|
|
2113 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
2114 | { |
|
|
2115 | CV *cv = (CV *)NEWSV (0, 0); |
|
|
2116 | |
|
|
2117 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
2118 | |
|
|
2119 | CvANON_on (cv); |
|
|
2120 | CvISXSUB_on (cv); |
|
|
2121 | CvXSUB (cv) = xsub; |
|
|
2122 | GENSUB_ARG = arg; |
|
|
2123 | |
|
|
2124 | return newRV_noinc ((SV *)cv); |
|
|
2125 | } |
|
|
2126 | |
|
|
2127 | /*****************************************************************************/ |
|
|
2128 | |
1207 | MODULE = Coro::State PACKAGE = Coro::State |
2129 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1208 | |
2130 | |
1209 | PROTOTYPES: DISABLE |
2131 | PROTOTYPES: DISABLE |
1210 | |
2132 | |
1211 | BOOT: |
2133 | BOOT: |
1212 | { |
2134 | { |
1213 | #ifdef USE_ITHREADS |
2135 | #ifdef USE_ITHREADS |
1214 | MUTEX_INIT (&coro_mutex); |
2136 | # if CORO_PTHREAD |
|
|
2137 | coro_thx = PERL_GET_CONTEXT; |
|
|
2138 | # endif |
1215 | #endif |
2139 | #endif |
1216 | BOOT_PAGESIZE; |
2140 | BOOT_PAGESIZE; |
1217 | |
2141 | |
|
|
2142 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
2143 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
2144 | |
|
|
2145 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
2146 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
2147 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
2148 | |
|
|
2149 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
2150 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
2151 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
|
|
2152 | |
1218 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
2153 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1219 | |
2154 | |
1220 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
2155 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1221 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
2156 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1222 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1223 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1224 | newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH)); |
|
|
1225 | newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); |
2157 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
1226 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
2158 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1227 | |
2159 | |
1228 | main_mainstack = PL_mainstack; |
2160 | main_mainstack = PL_mainstack; |
1229 | main_top_env = PL_top_env; |
2161 | main_top_env = PL_top_env; |
1230 | |
2162 | |
1231 | while (main_top_env->je_prev) |
2163 | while (main_top_env->je_prev) |
1232 | main_top_env = main_top_env->je_prev; |
2164 | main_top_env = main_top_env->je_prev; |
1233 | |
2165 | |
|
|
2166 | { |
|
|
2167 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2168 | |
|
|
2169 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2170 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2171 | newSVpv ("coro_slf", 0), 0); |
|
|
2172 | |
|
|
2173 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2174 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2175 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2176 | } |
|
|
2177 | |
1234 | coroapi.ver = CORO_API_VERSION; |
2178 | coroapi.ver = CORO_API_VERSION; |
|
|
2179 | coroapi.rev = CORO_API_REVISION; |
|
|
2180 | |
1235 | coroapi.transfer = api_transfer; |
2181 | coroapi.transfer = api_transfer; |
|
|
2182 | |
|
|
2183 | coroapi.sv_state = SvSTATE_; |
|
|
2184 | coroapi.execute_slf = api_execute_slf; |
|
|
2185 | coroapi.prepare_nop = prepare_nop; |
|
|
2186 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2187 | coroapi.prepare_cede = prepare_cede; |
|
|
2188 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
2189 | |
|
|
2190 | { |
|
|
2191 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
2192 | |
|
|
2193 | if (!svp) croak ("Time::HiRes is required"); |
|
|
2194 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
2195 | |
|
|
2196 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
2197 | } |
1236 | |
2198 | |
1237 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2199 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1238 | } |
2200 | } |
1239 | |
2201 | |
1240 | SV * |
2202 | SV * |
1241 | new (char *klass, ...) |
2203 | new (char *klass, ...) |
1242 | CODE: |
2204 | CODE: |
1243 | { |
2205 | { |
1244 | struct coro *coro; |
2206 | struct coro *coro; |
|
|
2207 | MAGIC *mg; |
1245 | HV *hv; |
2208 | HV *hv; |
1246 | int i; |
2209 | int i; |
1247 | |
2210 | |
1248 | Newz (0, coro, 1, struct coro); |
2211 | Newz (0, coro, 1, struct coro); |
1249 | coro->args = newAV (); |
2212 | coro->args = newAV (); |
1250 | coro->save = CORO_SAVE_DEF; |
|
|
1251 | coro->flags = CF_NEW; |
2213 | coro->flags = CF_NEW; |
1252 | |
2214 | |
1253 | if (coro_first) coro_first->prev = coro; |
2215 | if (coro_first) coro_first->prev = coro; |
1254 | coro->next = coro_first; |
2216 | coro->next = coro_first; |
1255 | coro_first = coro; |
2217 | coro_first = coro; |
1256 | |
2218 | |
1257 | coro->hv = hv = newHV (); |
2219 | coro->hv = hv = newHV (); |
1258 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
2220 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
2221 | mg->mg_flags |= MGf_DUP; |
1259 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2222 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1260 | |
2223 | |
|
|
2224 | av_extend (coro->args, items - 1); |
1261 | for (i = 1; i < items; i++) |
2225 | for (i = 1; i < items; i++) |
1262 | av_push (coro->args, newSVsv (ST (i))); |
2226 | av_push (coro->args, newSVsv (ST (i))); |
1263 | } |
2227 | } |
1264 | OUTPUT: |
2228 | OUTPUT: |
1265 | RETVAL |
2229 | RETVAL |
1266 | |
2230 | |
1267 | int |
|
|
1268 | save (SV *coro, int new_save = -1) |
|
|
1269 | CODE: |
|
|
1270 | RETVAL = api_save (coro, new_save); |
|
|
1271 | OUTPUT: |
|
|
1272 | RETVAL |
|
|
1273 | |
|
|
1274 | int |
|
|
1275 | save_also (SV *coro_sv, int save_also) |
|
|
1276 | CODE: |
|
|
1277 | { |
|
|
1278 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1279 | RETVAL = coro->save; |
|
|
1280 | coro->save |= save_also; |
|
|
1281 | } |
|
|
1282 | OUTPUT: |
|
|
1283 | RETVAL |
|
|
1284 | |
|
|
1285 | void |
2231 | void |
1286 | _set_stacklevel (...) |
2232 | _set_stacklevel (...) |
1287 | ALIAS: |
2233 | CODE: |
1288 | Coro::State::transfer = 1 |
2234 | CORO_EXECUTE_SLF_XS (slf_init_set_stacklevel); |
1289 | Coro::schedule = 2 |
|
|
1290 | Coro::cede = 3 |
|
|
1291 | Coro::cede_notself = 4 |
|
|
1292 | CODE: |
|
|
1293 | { |
|
|
1294 | struct transfer_args ta; |
|
|
1295 | |
2235 | |
1296 | switch (ix) |
2236 | void |
1297 | { |
2237 | transfer (...) |
1298 | case 0: |
2238 | PROTOTYPE: $$ |
1299 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
2239 | CODE: |
1300 | ta.next = 0; |
2240 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1301 | break; |
|
|
1302 | |
|
|
1303 | case 1: |
|
|
1304 | if (items != 2) |
|
|
1305 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1306 | |
|
|
1307 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1308 | break; |
|
|
1309 | |
|
|
1310 | case 2: |
|
|
1311 | prepare_schedule (aTHX_ &ta); |
|
|
1312 | break; |
|
|
1313 | |
|
|
1314 | case 3: |
|
|
1315 | prepare_cede (aTHX_ &ta); |
|
|
1316 | break; |
|
|
1317 | |
|
|
1318 | case 4: |
|
|
1319 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1320 | XSRETURN_EMPTY; |
|
|
1321 | |
|
|
1322 | break; |
|
|
1323 | } |
|
|
1324 | |
|
|
1325 | BARRIER; |
|
|
1326 | TRANSFER (ta); |
|
|
1327 | |
|
|
1328 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
|
|
1329 | XSRETURN_YES; |
|
|
1330 | } |
|
|
1331 | |
2241 | |
1332 | bool |
2242 | bool |
1333 | _destroy (SV *coro_sv) |
2243 | _destroy (SV *coro_sv) |
1334 | CODE: |
2244 | CODE: |
1335 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2245 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1336 | OUTPUT: |
2246 | OUTPUT: |
1337 | RETVAL |
2247 | RETVAL |
1338 | |
2248 | |
1339 | void |
2249 | void |
1340 | _exit (code) |
2250 | _exit (int code) |
1341 | int code |
|
|
1342 | PROTOTYPE: $ |
2251 | PROTOTYPE: $ |
1343 | CODE: |
2252 | CODE: |
1344 | _exit (code); |
2253 | _exit (code); |
1345 | |
2254 | |
1346 | int |
2255 | int |
1347 | cctx_stacksize (int new_stacksize = 0) |
2256 | cctx_stacksize (int new_stacksize = 0) |
|
|
2257 | PROTOTYPE: ;$ |
1348 | CODE: |
2258 | CODE: |
1349 | RETVAL = coro_stacksize; |
2259 | RETVAL = cctx_stacksize; |
1350 | if (new_stacksize) |
2260 | if (new_stacksize) |
|
|
2261 | { |
1351 | coro_stacksize = new_stacksize; |
2262 | cctx_stacksize = new_stacksize; |
|
|
2263 | ++cctx_gen; |
|
|
2264 | } |
1352 | OUTPUT: |
2265 | OUTPUT: |
1353 | RETVAL |
2266 | RETVAL |
1354 | |
2267 | |
1355 | int |
2268 | int |
|
|
2269 | cctx_max_idle (int max_idle = 0) |
|
|
2270 | PROTOTYPE: ;$ |
|
|
2271 | CODE: |
|
|
2272 | RETVAL = cctx_max_idle; |
|
|
2273 | if (max_idle > 1) |
|
|
2274 | cctx_max_idle = max_idle; |
|
|
2275 | OUTPUT: |
|
|
2276 | RETVAL |
|
|
2277 | |
|
|
2278 | int |
1356 | cctx_count () |
2279 | cctx_count () |
|
|
2280 | PROTOTYPE: |
1357 | CODE: |
2281 | CODE: |
1358 | RETVAL = cctx_count; |
2282 | RETVAL = cctx_count; |
1359 | OUTPUT: |
2283 | OUTPUT: |
1360 | RETVAL |
2284 | RETVAL |
1361 | |
2285 | |
1362 | int |
2286 | int |
1363 | cctx_idle () |
2287 | cctx_idle () |
|
|
2288 | PROTOTYPE: |
1364 | CODE: |
2289 | CODE: |
1365 | RETVAL = cctx_idle; |
2290 | RETVAL = cctx_idle; |
1366 | OUTPUT: |
2291 | OUTPUT: |
1367 | RETVAL |
2292 | RETVAL |
1368 | |
2293 | |
1369 | void |
2294 | void |
1370 | list () |
2295 | list () |
|
|
2296 | PROTOTYPE: |
1371 | PPCODE: |
2297 | PPCODE: |
1372 | { |
2298 | { |
1373 | struct coro *coro; |
2299 | struct coro *coro; |
1374 | for (coro = coro_first; coro; coro = coro->next) |
2300 | for (coro = coro_first; coro; coro = coro->next) |
1375 | if (coro->hv) |
2301 | if (coro->hv) |
1376 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
2302 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
1377 | } |
2303 | } |
1378 | |
2304 | |
1379 | void |
2305 | void |
1380 | _eval (Coro::State coro, SV *coderef) |
2306 | call (Coro::State coro, SV *coderef) |
|
|
2307 | ALIAS: |
|
|
2308 | eval = 1 |
1381 | CODE: |
2309 | CODE: |
1382 | { |
2310 | { |
1383 | if (coro->mainstack) |
2311 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1384 | { |
2312 | { |
1385 | struct coro temp; |
2313 | struct coro temp; |
1386 | Zero (&temp, 1, struct coro); |
|
|
1387 | temp.save = CORO_SAVE_ALL; |
|
|
1388 | |
2314 | |
1389 | if (!(coro->flags & CF_RUNNING)) |
2315 | if (!(coro->flags & CF_RUNNING)) |
1390 | { |
2316 | { |
|
|
2317 | PUTBACK; |
1391 | save_perl (aTHX_ &temp); |
2318 | save_perl (aTHX_ &temp); |
1392 | load_perl (aTHX_ coro); |
2319 | load_perl (aTHX_ coro); |
1393 | } |
2320 | } |
1394 | |
2321 | |
1395 | { |
2322 | { |
1396 | dSP; |
2323 | dSP; |
1397 | ENTER; |
2324 | ENTER; |
1398 | SAVETMPS; |
2325 | SAVETMPS; |
|
|
2326 | PUTBACK; |
|
|
2327 | PUSHSTACK; |
1399 | PUSHMARK (SP); |
2328 | PUSHMARK (SP); |
1400 | PUTBACK; |
2329 | |
|
|
2330 | if (ix) |
|
|
2331 | eval_sv (coderef, 0); |
|
|
2332 | else |
1401 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2333 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
2334 | |
|
|
2335 | POPSTACK; |
1402 | SPAGAIN; |
2336 | SPAGAIN; |
1403 | FREETMPS; |
2337 | FREETMPS; |
1404 | LEAVE; |
2338 | LEAVE; |
1405 | PUTBACK; |
2339 | PUTBACK; |
1406 | } |
2340 | } |
1407 | |
2341 | |
1408 | if (!(coro->flags & CF_RUNNING)) |
2342 | if (!(coro->flags & CF_RUNNING)) |
1409 | { |
2343 | { |
1410 | save_perl (aTHX_ coro); |
2344 | save_perl (aTHX_ coro); |
1411 | load_perl (aTHX_ &temp); |
2345 | load_perl (aTHX_ &temp); |
|
|
2346 | SPAGAIN; |
1412 | } |
2347 | } |
1413 | } |
2348 | } |
1414 | } |
2349 | } |
1415 | |
2350 | |
1416 | SV * |
2351 | SV * |
1417 | is_ready (Coro::State coro) |
2352 | is_ready (Coro::State coro) |
1418 | PROTOTYPE: $ |
2353 | PROTOTYPE: $ |
1419 | ALIAS: |
2354 | ALIAS: |
1420 | is_ready = CF_READY |
2355 | is_ready = CF_READY |
… | |
… | |
1424 | CODE: |
2359 | CODE: |
1425 | RETVAL = boolSV (coro->flags & ix); |
2360 | RETVAL = boolSV (coro->flags & ix); |
1426 | OUTPUT: |
2361 | OUTPUT: |
1427 | RETVAL |
2362 | RETVAL |
1428 | |
2363 | |
1429 | IV |
2364 | void |
|
|
2365 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2366 | PROTOTYPE: $;$ |
|
|
2367 | CODE: |
|
|
2368 | { |
|
|
2369 | struct coro *current = SvSTATE_current; |
|
|
2370 | SV **throwp = self == current ? &coro_throw : &self->throw; |
|
|
2371 | SvREFCNT_dec (*throwp); |
|
|
2372 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2373 | } |
|
|
2374 | |
|
|
2375 | void |
|
|
2376 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2377 | PROTOTYPE: $;$ |
|
|
2378 | C_ARGS: aTHX_ coro, flags |
|
|
2379 | |
|
|
2380 | SV * |
|
|
2381 | has_cctx (Coro::State coro) |
|
|
2382 | PROTOTYPE: $ |
|
|
2383 | CODE: |
|
|
2384 | RETVAL = boolSV (!!coro->cctx); |
|
|
2385 | OUTPUT: |
|
|
2386 | RETVAL |
|
|
2387 | |
|
|
2388 | int |
|
|
2389 | is_traced (Coro::State coro) |
|
|
2390 | PROTOTYPE: $ |
|
|
2391 | CODE: |
|
|
2392 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
2393 | OUTPUT: |
|
|
2394 | RETVAL |
|
|
2395 | |
|
|
2396 | UV |
1430 | rss (Coro::State coro) |
2397 | rss (Coro::State coro) |
1431 | PROTOTYPE: $ |
2398 | PROTOTYPE: $ |
|
|
2399 | ALIAS: |
|
|
2400 | usecount = 1 |
1432 | CODE: |
2401 | CODE: |
1433 | RETVAL = coro_rss (coro); |
2402 | switch (ix) |
|
|
2403 | { |
|
|
2404 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
2405 | case 1: RETVAL = coro->usecount; break; |
|
|
2406 | } |
1434 | OUTPUT: |
2407 | OUTPUT: |
1435 | RETVAL |
2408 | RETVAL |
1436 | |
2409 | |
|
|
2410 | void |
|
|
2411 | force_cctx () |
|
|
2412 | PROTOTYPE: |
|
|
2413 | CODE: |
|
|
2414 | SvSTATE_current->cctx->idle_sp = 0; |
|
|
2415 | |
|
|
2416 | void |
|
|
2417 | swap_defsv (Coro::State self) |
|
|
2418 | PROTOTYPE: $ |
|
|
2419 | ALIAS: |
|
|
2420 | swap_defav = 1 |
|
|
2421 | CODE: |
|
|
2422 | if (!self->slot) |
|
|
2423 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
2424 | else |
|
|
2425 | { |
|
|
2426 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
2427 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
2428 | |
|
|
2429 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
2430 | } |
1437 | |
2431 | |
1438 | MODULE = Coro::State PACKAGE = Coro |
2432 | MODULE = Coro::State PACKAGE = Coro |
1439 | |
2433 | |
1440 | BOOT: |
2434 | BOOT: |
1441 | { |
2435 | { |
1442 | int i; |
2436 | int i; |
1443 | |
2437 | |
|
|
2438 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2439 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
2440 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
|
|
2441 | |
|
|
2442 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
|
|
2443 | SvREADONLY_on (coro_current); |
|
|
2444 | |
1444 | coro_stash = gv_stashpv ("Coro", TRUE); |
2445 | coro_stash = gv_stashpv ("Coro", TRUE); |
1445 | |
2446 | |
1446 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2447 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1447 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2448 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1448 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
2449 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1449 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
2450 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1450 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
2451 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1451 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
2452 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1452 | |
2453 | |
1453 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1454 | SvREADONLY_on (coro_current); |
|
|
1455 | |
|
|
1456 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2454 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1457 | coro_ready[i] = newAV (); |
2455 | coro_ready[i] = newAV (); |
1458 | |
2456 | |
1459 | { |
2457 | { |
1460 | SV *sv = perl_get_sv("Coro::API", 1); |
2458 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1461 | |
2459 | |
1462 | coroapi.schedule = api_schedule; |
2460 | coroapi.schedule = api_schedule; |
1463 | coroapi.save = api_save; |
|
|
1464 | coroapi.cede = api_cede; |
2461 | coroapi.cede = api_cede; |
1465 | coroapi.cede_notself = api_cede_notself; |
2462 | coroapi.cede_notself = api_cede_notself; |
1466 | coroapi.ready = api_ready; |
2463 | coroapi.ready = api_ready; |
1467 | coroapi.is_ready = api_is_ready; |
2464 | coroapi.is_ready = api_is_ready; |
1468 | coroapi.nready = &coro_nready; |
2465 | coroapi.nready = coro_nready; |
1469 | coroapi.current = coro_current; |
2466 | coroapi.current = coro_current; |
1470 | |
2467 | |
1471 | GCoroAPI = &coroapi; |
2468 | GCoroAPI = &coroapi; |
1472 | sv_setiv (sv, (IV)&coroapi); |
2469 | sv_setiv (sv, (IV)&coroapi); |
1473 | SvREADONLY_on (sv); |
2470 | SvREADONLY_on (sv); |
1474 | } |
2471 | } |
1475 | } |
2472 | } |
|
|
2473 | |
|
|
2474 | void |
|
|
2475 | schedule (...) |
|
|
2476 | CODE: |
|
|
2477 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
2478 | |
|
|
2479 | void |
|
|
2480 | cede (...) |
|
|
2481 | CODE: |
|
|
2482 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
2483 | |
|
|
2484 | void |
|
|
2485 | cede_notself (...) |
|
|
2486 | CODE: |
|
|
2487 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1476 | |
2488 | |
1477 | void |
2489 | void |
1478 | _set_current (SV *current) |
2490 | _set_current (SV *current) |
1479 | PROTOTYPE: $ |
2491 | PROTOTYPE: $ |
1480 | CODE: |
2492 | CODE: |
1481 | SvREFCNT_dec (SvRV (coro_current)); |
2493 | SvREFCNT_dec (SvRV (coro_current)); |
1482 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
2494 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
2495 | |
|
|
2496 | void |
|
|
2497 | _set_readyhook (SV *hook) |
|
|
2498 | PROTOTYPE: $ |
|
|
2499 | CODE: |
|
|
2500 | SvREFCNT_dec (coro_readyhook); |
|
|
2501 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
1483 | |
2502 | |
1484 | int |
2503 | int |
1485 | prio (Coro::State coro, int newprio = 0) |
2504 | prio (Coro::State coro, int newprio = 0) |
|
|
2505 | PROTOTYPE: $;$ |
1486 | ALIAS: |
2506 | ALIAS: |
1487 | nice = 1 |
2507 | nice = 1 |
1488 | CODE: |
2508 | CODE: |
1489 | { |
2509 | { |
1490 | RETVAL = coro->prio; |
2510 | RETVAL = coro->prio; |
… | |
… | |
1505 | |
2525 | |
1506 | SV * |
2526 | SV * |
1507 | ready (SV *self) |
2527 | ready (SV *self) |
1508 | PROTOTYPE: $ |
2528 | PROTOTYPE: $ |
1509 | CODE: |
2529 | CODE: |
1510 | RETVAL = boolSV (api_ready (self)); |
2530 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1511 | OUTPUT: |
2531 | OUTPUT: |
1512 | RETVAL |
2532 | RETVAL |
1513 | |
2533 | |
1514 | int |
2534 | int |
1515 | nready (...) |
2535 | nready (...) |
… | |
… | |
1517 | CODE: |
2537 | CODE: |
1518 | RETVAL = coro_nready; |
2538 | RETVAL = coro_nready; |
1519 | OUTPUT: |
2539 | OUTPUT: |
1520 | RETVAL |
2540 | RETVAL |
1521 | |
2541 | |
|
|
2542 | # for async_pool speedup |
|
|
2543 | void |
|
|
2544 | _pool_1 (SV *cb) |
|
|
2545 | CODE: |
|
|
2546 | { |
|
|
2547 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2548 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2549 | AV *defav = GvAV (PL_defgv); |
|
|
2550 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
2551 | AV *invoke_av; |
|
|
2552 | int i, len; |
|
|
2553 | |
|
|
2554 | if (!invoke) |
|
|
2555 | { |
|
|
2556 | SV *old = PL_diehook; |
|
|
2557 | PL_diehook = 0; |
|
|
2558 | SvREFCNT_dec (old); |
|
|
2559 | croak ("\3async_pool terminate\2\n"); |
|
|
2560 | } |
|
|
2561 | |
|
|
2562 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2563 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
|
|
2564 | |
|
|
2565 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2566 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
2567 | |
|
|
2568 | invoke_av = (AV *)SvRV (invoke); |
|
|
2569 | len = av_len (invoke_av); |
|
|
2570 | |
|
|
2571 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
2572 | |
|
|
2573 | if (len > 0) |
|
|
2574 | { |
|
|
2575 | av_fill (defav, len - 1); |
|
|
2576 | for (i = 0; i < len; ++i) |
|
|
2577 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
|
|
2578 | } |
|
|
2579 | } |
|
|
2580 | |
|
|
2581 | void |
|
|
2582 | _pool_2 (SV *cb) |
|
|
2583 | CODE: |
|
|
2584 | { |
|
|
2585 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2586 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
|
|
2587 | |
|
|
2588 | sv_setsv (cb, &PL_sv_undef); |
|
|
2589 | |
|
|
2590 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
2591 | coro->saved_deffh = 0; |
|
|
2592 | |
|
|
2593 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
|
|
2594 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
2595 | { |
|
|
2596 | SV *old = PL_diehook; |
|
|
2597 | PL_diehook = 0; |
|
|
2598 | SvREFCNT_dec (old); |
|
|
2599 | croak ("\3async_pool terminate\2\n"); |
|
|
2600 | } |
|
|
2601 | |
|
|
2602 | av_clear (GvAV (PL_defgv)); |
|
|
2603 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
2604 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
2605 | |
|
|
2606 | coro->prio = 0; |
|
|
2607 | |
|
|
2608 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
2609 | api_trace (aTHX_ coro_current, 0); |
|
|
2610 | |
|
|
2611 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
2612 | } |
|
|
2613 | |
|
|
2614 | |
1522 | MODULE = Coro::State PACKAGE = Coro::AIO |
2615 | MODULE = Coro::State PACKAGE = Coro::AIO |
1523 | |
2616 | |
1524 | SV * |
2617 | void |
1525 | _get_state () |
2618 | _get_state (SV *self) |
|
|
2619 | PROTOTYPE: $ |
1526 | CODE: |
2620 | PPCODE: |
1527 | { |
2621 | { |
1528 | struct io_state *data; |
2622 | AV *defav = GvAV (PL_defgv); |
1529 | |
2623 | AV *av = newAV (); |
|
|
2624 | int i; |
1530 | RETVAL = newSV (sizeof (struct io_state)); |
2625 | SV *data_sv = newSV (sizeof (struct io_state)); |
1531 | data = (struct io_state *)SvPVX (RETVAL); |
2626 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
1532 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
2627 | SvCUR_set (data_sv, sizeof (struct io_state)); |
1533 | SvPOK_only (RETVAL); |
2628 | SvPOK_only (data_sv); |
1534 | |
2629 | |
1535 | data->errorno = errno; |
2630 | data->errorno = errno; |
1536 | data->laststype = PL_laststype; |
2631 | data->laststype = PL_laststype; |
1537 | data->laststatval = PL_laststatval; |
2632 | data->laststatval = PL_laststatval; |
1538 | data->statcache = PL_statcache; |
2633 | data->statcache = PL_statcache; |
|
|
2634 | |
|
|
2635 | av_extend (av, AvFILLp (defav) + 1 + 1); |
|
|
2636 | |
|
|
2637 | for (i = 0; i <= AvFILLp (defav); ++i) |
|
|
2638 | av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
|
|
2639 | |
|
|
2640 | av_push (av, data_sv); |
|
|
2641 | |
|
|
2642 | XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
2643 | |
|
|
2644 | api_ready (aTHX_ self); |
1539 | } |
2645 | } |
1540 | OUTPUT: |
|
|
1541 | RETVAL |
|
|
1542 | |
2646 | |
1543 | void |
2647 | void |
1544 | _set_state (char *data_) |
2648 | _set_state (SV *state) |
1545 | PROTOTYPE: $ |
2649 | PROTOTYPE: $ |
1546 | CODE: |
2650 | PPCODE: |
1547 | { |
2651 | { |
1548 | struct io_state *data = (void *)data_; |
2652 | AV *av = (AV *)SvRV (state); |
|
|
2653 | struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
|
|
2654 | int i; |
1549 | |
2655 | |
1550 | errno = data->errorno; |
2656 | errno = data->errorno; |
1551 | PL_laststype = data->laststype; |
2657 | PL_laststype = data->laststype; |
1552 | PL_laststatval = data->laststatval; |
2658 | PL_laststatval = data->laststatval; |
1553 | PL_statcache = data->statcache; |
2659 | PL_statcache = data->statcache; |
1554 | } |
|
|
1555 | |
2660 | |
|
|
2661 | EXTEND (SP, AvFILLp (av)); |
|
|
2662 | for (i = 0; i < AvFILLp (av); ++i) |
|
|
2663 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
|
|
2664 | } |
|
|
2665 | |
|
|
2666 | |
|
|
2667 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
2668 | |
|
|
2669 | BOOT: |
|
|
2670 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
2671 | |
|
|
2672 | void |
|
|
2673 | _schedule (...) |
|
|
2674 | CODE: |
|
|
2675 | { |
|
|
2676 | static int incede; |
|
|
2677 | |
|
|
2678 | api_cede_notself (aTHX); |
|
|
2679 | |
|
|
2680 | ++incede; |
|
|
2681 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
2682 | ; |
|
|
2683 | |
|
|
2684 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
2685 | if (coro_nready >= incede) |
|
|
2686 | { |
|
|
2687 | PUSHMARK (SP); |
|
|
2688 | PUTBACK; |
|
|
2689 | call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
|
|
2690 | SPAGAIN; |
|
|
2691 | } |
|
|
2692 | |
|
|
2693 | --incede; |
|
|
2694 | } |
|
|
2695 | |
|
|
2696 | |
|
|
2697 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
2698 | |
|
|
2699 | BOOT: |
|
|
2700 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
2701 | |
|
|
2702 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
2703 | |
|
|
2704 | SV * |
|
|
2705 | new (SV *klass, SV *count_ = 0) |
|
|
2706 | CODE: |
|
|
2707 | { |
|
|
2708 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2709 | AV *av = newAV (); |
|
|
2710 | av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
|
|
2711 | RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
|
|
2712 | } |
|
|
2713 | OUTPUT: |
|
|
2714 | RETVAL |
|
|
2715 | |
|
|
2716 | SV * |
|
|
2717 | count (SV *self) |
|
|
2718 | CODE: |
|
|
2719 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
2720 | OUTPUT: |
|
|
2721 | RETVAL |
|
|
2722 | |
|
|
2723 | void |
|
|
2724 | up (SV *self, int adjust = 1) |
|
|
2725 | ALIAS: |
|
|
2726 | adjust = 1 |
|
|
2727 | CODE: |
|
|
2728 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
2729 | |
|
|
2730 | void |
|
|
2731 | down (SV *self) |
|
|
2732 | CODE: |
|
|
2733 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
2734 | |
|
|
2735 | void |
|
|
2736 | try (SV *self) |
|
|
2737 | PPCODE: |
|
|
2738 | { |
|
|
2739 | AV *av = (AV *)SvRV (self); |
|
|
2740 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2741 | IV count = SvIVX (count_sv); |
|
|
2742 | |
|
|
2743 | if (count > 0) |
|
|
2744 | { |
|
|
2745 | --count; |
|
|
2746 | SvIVX (count_sv) = count; |
|
|
2747 | XSRETURN_YES; |
|
|
2748 | } |
|
|
2749 | else |
|
|
2750 | XSRETURN_NO; |
|
|
2751 | } |
|
|
2752 | |
|
|
2753 | void |
|
|
2754 | waiters (SV *self) |
|
|
2755 | CODE: |
|
|
2756 | { |
|
|
2757 | AV *av = (AV *)SvRV (self); |
|
|
2758 | |
|
|
2759 | if (GIMME_V == G_SCALAR) |
|
|
2760 | XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
|
|
2761 | else |
|
|
2762 | { |
|
|
2763 | int i; |
|
|
2764 | EXTEND (SP, AvFILLp (av) + 1 - 1); |
|
|
2765 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2766 | PUSHs (newSVsv (AvARRAY (av)[i])); |
|
|
2767 | } |
|
|
2768 | } |
|
|
2769 | |