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 */ |
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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 | #ifndef CvISXSUB_on |
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101 | # define CvISXSUB_on(cv) (void)cv |
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102 | #endif |
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103 | |
75 | /* 5.8.7 */ |
104 | /* 5.8.7 */ |
76 | #ifndef SvRV_set |
105 | #ifndef SvRV_set |
77 | # define SvRV_set(s,v) SvRV(s) = (v) |
106 | # define SvRV_set(s,v) SvRV(s) = (v) |
78 | #endif |
107 | #endif |
79 | |
108 | |
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90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
119 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
91 | #endif |
120 | #endif |
92 | |
121 | |
93 | /* The next macros try to return the current stack pointer, in an as |
122 | /* The next macros try to return the current stack pointer, in an as |
94 | * portable way as possible. */ |
123 | * portable way as possible. */ |
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124 | #if __GNUC__ >= 4 |
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125 | # define dSTACKLEVEL int stacklevel_dummy |
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126 | # define STACKLEVEL __builtin_frame_address (0) |
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127 | #else |
95 | #define dSTACKLEVEL volatile char stacklevel |
128 | # define dSTACKLEVEL volatile void *stacklevel |
96 | #define STACKLEVEL ((void *)&stacklevel) |
129 | # define STACKLEVEL ((void *)&stacklevel) |
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130 | #endif |
97 | |
131 | |
98 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
132 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
99 | |
133 | |
100 | #if __GNUC__ >= 3 |
134 | #if __GNUC__ >= 3 |
101 | # define attribute(x) __attribute__(x) |
135 | # define attribute(x) __attribute__(x) |
102 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
136 | # define expect(expr,value) __builtin_expect ((expr),(value)) |
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137 | # define INLINE static inline |
103 | #else |
138 | #else |
104 | # define attribute(x) |
139 | # define attribute(x) |
105 | # define BARRIER |
140 | # define expect(expr,value) (expr) |
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141 | # define INLINE static |
106 | #endif |
142 | #endif |
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143 | |
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144 | #define expect_false(expr) expect ((expr) != 0, 0) |
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145 | #define expect_true(expr) expect ((expr) != 0, 1) |
107 | |
146 | |
108 | #define NOINLINE attribute ((noinline)) |
147 | #define NOINLINE attribute ((noinline)) |
109 | |
148 | |
110 | #include "CoroAPI.h" |
149 | #include "CoroAPI.h" |
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150 | #define GCoroAPI (&coroapi) /* very sneaky */ |
111 | |
151 | |
112 | #ifdef USE_ITHREADS |
152 | #ifdef USE_ITHREADS |
113 | static perl_mutex coro_mutex; |
153 | # if CORO_PTHREAD |
114 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
154 | static void *coro_thx; |
115 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
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116 | #else |
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117 | # define LOCK (void)0 |
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118 | # define UNLOCK (void)0 |
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119 | #endif |
155 | # endif |
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156 | #endif |
120 | |
157 | |
121 | /* helper storage struct for Coro::AIO */ |
158 | static double (*nvtime)(); /* so why doesn't it take void? */ |
122 | struct io_state |
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123 | { |
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124 | int errorno; |
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125 | I32 laststype; |
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126 | int laststatval; |
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127 | Stat_t statcache; |
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128 | }; |
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129 | |
159 | |
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160 | /* we hijack an hopefully unused CV flag for our purposes */ |
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161 | #define CVf_SLF 0x4000 |
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162 | static OP *pp_slf (pTHX); |
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163 | |
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164 | static U32 cctx_gen; |
130 | static size_t coro_stacksize = CORO_STACKSIZE; |
165 | static size_t cctx_stacksize = CORO_STACKSIZE; |
131 | static struct CoroAPI coroapi; |
166 | static struct CoroAPI coroapi; |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
167 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
133 | static JMPENV *main_top_env; |
168 | static JMPENV *main_top_env; |
134 | static HV *coro_state_stash, *coro_stash; |
169 | static HV *coro_state_stash, *coro_stash; |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
170 | static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
136 | |
171 | |
137 | static GV *irsgv; /* $/ */ |
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 */ |
138 | |
177 | |
139 | /* async_pool helper stuff */ |
178 | /* async_pool helper stuff */ |
140 | static SV *sv_pool_rss; |
179 | static SV *sv_pool_rss; |
141 | static SV *sv_pool_size; |
180 | static SV *sv_pool_size; |
142 | static AV *av_async_pool; |
181 | static AV *av_async_pool; |
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182 | |
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183 | /* Coro::AnyEvent */ |
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184 | static SV *sv_activity; |
143 | |
185 | |
144 | static struct coro_cctx *cctx_first; |
186 | static struct coro_cctx *cctx_first; |
145 | static int cctx_count, cctx_idle; |
187 | static int cctx_count, cctx_idle; |
146 | |
188 | |
147 | enum { |
189 | enum { |
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152 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
194 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
153 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
195 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
154 | }; |
196 | }; |
155 | |
197 | |
156 | /* this is a structure representing a c-level coroutine */ |
198 | /* this is a structure representing a c-level coroutine */ |
157 | typedef struct coro_cctx { |
199 | typedef struct coro_cctx |
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200 | { |
158 | struct coro_cctx *next; |
201 | struct coro_cctx *next; |
159 | |
202 | |
160 | /* the stack */ |
203 | /* the stack */ |
161 | void *sptr; |
204 | void *sptr; |
162 | size_t ssize; |
205 | size_t ssize; |
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165 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
208 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
166 | 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 */ |
167 | JMPENV *top_env; |
210 | JMPENV *top_env; |
168 | coro_context cctx; |
211 | coro_context cctx; |
169 | |
212 | |
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213 | U32 gen; |
170 | #if CORO_USE_VALGRIND |
214 | #if CORO_USE_VALGRIND |
171 | int valgrind_id; |
215 | int valgrind_id; |
172 | #endif |
216 | #endif |
173 | unsigned char flags; |
217 | unsigned char flags; |
174 | } coro_cctx; |
218 | } coro_cctx; |
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178 | CF_READY = 0x0002, /* coroutine is ready */ |
222 | CF_READY = 0x0002, /* coroutine is ready */ |
179 | CF_NEW = 0x0004, /* has never been switched to */ |
223 | CF_NEW = 0x0004, /* has never been switched to */ |
180 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
224 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
181 | }; |
225 | }; |
182 | |
226 | |
183 | /* this is a structure representing a perl-level coroutine */ |
227 | /* the structure where most of the perl state is stored, overlaid on the cxstack */ |
184 | struct coro { |
228 | typedef struct |
185 | /* the c coroutine allocated to this perl coroutine, if any */ |
229 | { |
186 | coro_cctx *cctx; |
230 | SV *defsv; |
187 | |
231 | AV *defav; |
188 | /* data associated with this coroutine (initial args) */ |
232 | SV *errsv; |
189 | AV *args; |
233 | SV *irsgv; |
190 | int refcnt; |
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191 | int flags; /* CF_ flags */ |
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192 | |
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193 | /* optionally saved, might be zero */ |
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194 | AV *defav; /* @_ */ |
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195 | SV *defsv; /* $_ */ |
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196 | SV *errsv; /* $@ */ |
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197 | IO *deffh; /* default filehandle */ |
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198 | SV *irssv; /* $/ */ |
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199 | SV *irssv_sv; /* real $/ cache */ |
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200 | |
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201 | #define VAR(name,type) type name; |
234 | #define VAR(name,type) type name; |
202 | # include "state.h" |
235 | # include "state.h" |
203 | #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 | CV *startcv; /* the CV to execute */ |
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252 | AV *args; /* data associated with this coroutine (initial args) */ |
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253 | int refcnt; /* coroutines are refcounted, yes */ |
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254 | int flags; /* CF_ flags */ |
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255 | HV *hv; /* the perl hash associated with this coro, if any */ |
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256 | void (*on_destroy)(pTHX_ struct coro *coro); |
204 | |
257 | |
205 | /* statistics */ |
258 | /* statistics */ |
206 | int usecount; /* number of switches to this coro */ |
259 | int usecount; /* number of transfers to this coro */ |
207 | |
260 | |
208 | /* coro process data */ |
261 | /* coro process data */ |
209 | int prio; |
262 | int prio; |
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263 | SV *except; /* exception to be thrown */ |
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264 | SV *rouse_cb; |
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265 | |
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266 | /* async_pool */ |
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267 | SV *saved_deffh; |
210 | |
268 | |
211 | /* linked list */ |
269 | /* linked list */ |
212 | struct coro *next, *prev; |
270 | struct coro *next, *prev; |
213 | HV *hv; /* the perl hash associated with this coro, if any */ |
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214 | }; |
271 | }; |
215 | |
272 | |
216 | typedef struct coro *Coro__State; |
273 | typedef struct coro *Coro__State; |
217 | typedef struct coro *Coro__State_or_hashref; |
274 | typedef struct coro *Coro__State_or_hashref; |
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275 | |
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276 | /* the following variables are effectively part of the perl context */ |
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277 | /* and get copied between struct coro and these variables */ |
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278 | /* the mainr easonw e don't support windows process emulation */ |
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279 | static struct CoroSLF slf_frame; /* the current slf frame */ |
218 | |
280 | |
219 | /** Coro ********************************************************************/ |
281 | /** Coro ********************************************************************/ |
220 | |
282 | |
221 | #define PRIO_MAX 3 |
283 | #define PRIO_MAX 3 |
222 | #define PRIO_HIGH 1 |
284 | #define PRIO_HIGH 1 |
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225 | #define PRIO_IDLE -3 |
287 | #define PRIO_IDLE -3 |
226 | #define PRIO_MIN -4 |
288 | #define PRIO_MIN -4 |
227 | |
289 | |
228 | /* for Coro.pm */ |
290 | /* for Coro.pm */ |
229 | static SV *coro_current; |
291 | static SV *coro_current; |
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292 | static SV *coro_readyhook; |
230 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
293 | static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
231 | static int coro_nready; |
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232 | static struct coro *coro_first; |
294 | static struct coro *coro_first; |
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295 | #define coro_nready coroapi.nready |
233 | |
296 | |
234 | /** lowlevel stuff **********************************************************/ |
297 | /** lowlevel stuff **********************************************************/ |
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298 | |
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299 | static SV * |
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300 | coro_get_sv (pTHX_ const char *name, int create) |
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301 | { |
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302 | #if PERL_VERSION_ATLEAST (5,10,0) |
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303 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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304 | get_sv (name, create); |
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305 | #endif |
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306 | return get_sv (name, create); |
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307 | } |
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308 | |
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309 | static AV * |
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310 | coro_get_av (pTHX_ const char *name, int create) |
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311 | { |
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312 | #if PERL_VERSION_ATLEAST (5,10,0) |
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313 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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314 | get_av (name, create); |
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315 | #endif |
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316 | return get_av (name, create); |
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317 | } |
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318 | |
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319 | static HV * |
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320 | coro_get_hv (pTHX_ const char *name, int create) |
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321 | { |
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322 | #if PERL_VERSION_ATLEAST (5,10,0) |
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323 | /* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
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324 | get_hv (name, create); |
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325 | #endif |
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326 | return get_hv (name, create); |
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327 | } |
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328 | |
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329 | /* may croak */ |
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330 | INLINE CV * |
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331 | coro_sv_2cv (SV *sv) |
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332 | { |
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333 | HV *st; |
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334 | GV *gvp; |
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335 | return sv_2cv (sv, &st, &gvp, 0); |
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336 | } |
235 | |
337 | |
236 | static AV * |
338 | static AV * |
237 | coro_clone_padlist (pTHX_ CV *cv) |
339 | coro_clone_padlist (pTHX_ CV *cv) |
238 | { |
340 | { |
239 | AV *padlist = CvPADLIST (cv); |
341 | AV *padlist = CvPADLIST (cv); |
240 | AV *newpadlist, *newpad; |
342 | AV *newpadlist, *newpad; |
241 | |
343 | |
242 | newpadlist = newAV (); |
344 | newpadlist = newAV (); |
243 | AvREAL_off (newpadlist); |
345 | AvREAL_off (newpadlist); |
244 | #if PERL_VERSION_ATLEAST (5,9,0) |
346 | #if PERL_VERSION_ATLEAST (5,10,0) |
245 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
347 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
246 | #else |
348 | #else |
247 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
349 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
248 | #endif |
350 | #endif |
249 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
351 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
250 | --AvFILLp (padlist); |
352 | --AvFILLp (padlist); |
251 | |
353 | |
252 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
354 | av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
253 | av_store (newpadlist, 1, (SV *)newpad); |
355 | av_store (newpadlist, 1, (SV *)newpad); |
254 | |
356 | |
255 | return newpadlist; |
357 | return newpadlist; |
256 | } |
358 | } |
257 | |
359 | |
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287 | |
389 | |
288 | /* casting is fun. */ |
390 | /* casting is fun. */ |
289 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
391 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
290 | free_padlist (aTHX_ padlist); |
392 | free_padlist (aTHX_ padlist); |
291 | |
393 | |
292 | SvREFCNT_dec (av); |
394 | SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
293 | |
395 | |
294 | return 0; |
396 | return 0; |
295 | } |
397 | } |
296 | |
398 | |
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399 | #define CORO_MAGIC_type_cv 26 |
297 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
400 | #define CORO_MAGIC_type_state PERL_MAGIC_ext |
298 | |
401 | |
299 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
402 | static MGVTBL coro_cv_vtbl = { |
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403 | 0, 0, 0, 0, |
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404 | coro_cv_free |
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405 | }; |
300 | |
406 | |
301 | #define CORO_MAGIC(cv) \ |
407 | #define CORO_MAGIC_NN(sv, type) \ |
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408 | (expect_true (SvMAGIC (sv)->mg_type == type) \ |
302 | SvMAGIC (cv) \ |
409 | ? SvMAGIC (sv) \ |
303 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
410 | : mg_find (sv, type)) |
304 | ? SvMAGIC (cv) \ |
411 | |
305 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
412 | #define CORO_MAGIC(sv, type) \ |
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413 | (expect_true (SvMAGIC (sv)) \ |
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414 | ? CORO_MAGIC_NN (sv, type) \ |
306 | : 0 |
415 | : 0) |
307 | |
416 | |
308 | static struct coro * |
417 | #define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
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418 | #define CORO_MAGIC_state(sv) CORO_MAGIC_NN (((SV *)(sv)), CORO_MAGIC_type_state) |
|
|
419 | |
|
|
420 | INLINE struct coro * |
309 | SvSTATE_ (pTHX_ SV *coro) |
421 | SvSTATE_ (pTHX_ SV *coro) |
310 | { |
422 | { |
311 | HV *stash; |
423 | HV *stash; |
312 | MAGIC *mg; |
424 | MAGIC *mg; |
313 | |
425 | |
314 | if (SvROK (coro)) |
426 | if (SvROK (coro)) |
315 | coro = SvRV (coro); |
427 | coro = SvRV (coro); |
316 | |
428 | |
317 | if (SvTYPE (coro) != SVt_PVHV) |
429 | if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
318 | croak ("Coro::State object required"); |
430 | croak ("Coro::State object required"); |
319 | |
431 | |
320 | stash = SvSTASH (coro); |
432 | stash = SvSTASH (coro); |
321 | if (stash != coro_stash && stash != coro_state_stash) |
433 | if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
322 | { |
434 | { |
323 | /* very slow, but rare, check */ |
435 | /* very slow, but rare, check */ |
324 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
436 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
325 | croak ("Coro::State object required"); |
437 | croak ("Coro::State object required"); |
326 | } |
438 | } |
327 | |
439 | |
328 | mg = CORO_MAGIC (coro); |
440 | mg = CORO_MAGIC_state (coro); |
329 | return (struct coro *)mg->mg_ptr; |
441 | return (struct coro *)mg->mg_ptr; |
330 | } |
442 | } |
331 | |
443 | |
332 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
444 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
333 | |
445 | |
|
|
446 | /* faster than SvSTATE, but expects a coroutine hv */ |
|
|
447 | #define SvSTATE_hv(hv) ((struct coro *)CORO_MAGIC_NN ((SV *)hv, CORO_MAGIC_type_state)->mg_ptr) |
|
|
448 | #define SvSTATE_current SvSTATE_hv (SvRV (coro_current)) |
|
|
449 | |
334 | /* the next two functions merely cache the padlists */ |
450 | /* the next two functions merely cache the padlists */ |
335 | static void |
451 | static void |
336 | get_padlist (pTHX_ CV *cv) |
452 | get_padlist (pTHX_ CV *cv) |
337 | { |
453 | { |
338 | MAGIC *mg = CORO_MAGIC (cv); |
454 | MAGIC *mg = CORO_MAGIC_cv (cv); |
339 | AV *av; |
455 | AV *av; |
340 | |
456 | |
341 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
457 | if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
342 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
458 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
343 | else |
459 | else |
344 | { |
460 | { |
345 | #if CORO_PREFER_PERL_FUNCTIONS |
461 | #if CORO_PREFER_PERL_FUNCTIONS |
346 | /* this is probably cleaner, but also slower? */ |
462 | /* this is probably cleaner? but also slower! */ |
|
|
463 | /* in practise, it seems to be less stable */ |
347 | CV *cp = Perl_cv_clone (cv); |
464 | CV *cp = Perl_cv_clone (aTHX_ cv); |
348 | CvPADLIST (cv) = CvPADLIST (cp); |
465 | CvPADLIST (cv) = CvPADLIST (cp); |
349 | CvPADLIST (cp) = 0; |
466 | CvPADLIST (cp) = 0; |
350 | SvREFCNT_dec (cp); |
467 | SvREFCNT_dec (cp); |
351 | #else |
468 | #else |
352 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
469 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
… | |
… | |
355 | } |
472 | } |
356 | |
473 | |
357 | static void |
474 | static void |
358 | put_padlist (pTHX_ CV *cv) |
475 | put_padlist (pTHX_ CV *cv) |
359 | { |
476 | { |
360 | MAGIC *mg = CORO_MAGIC (cv); |
477 | MAGIC *mg = CORO_MAGIC_cv (cv); |
361 | AV *av; |
478 | AV *av; |
362 | |
479 | |
363 | if (!mg) |
480 | if (expect_false (!mg)) |
364 | { |
481 | mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
365 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
|
|
366 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
|
|
367 | mg->mg_virtual = &vtbl_coro; |
|
|
368 | mg->mg_obj = (SV *)newAV (); |
|
|
369 | } |
|
|
370 | |
482 | |
371 | av = (AV *)mg->mg_obj; |
483 | av = (AV *)mg->mg_obj; |
372 | |
484 | |
373 | if (AvFILLp (av) >= AvMAX (av)) |
485 | if (expect_false (AvFILLp (av) >= AvMAX (av))) |
374 | av_extend (av, AvMAX (av) + 1); |
486 | av_extend (av, AvMAX (av) + 1); |
375 | |
487 | |
376 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
488 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
377 | } |
489 | } |
378 | |
490 | |
379 | /** load & save, init *******************************************************/ |
491 | /** load & save, init *******************************************************/ |
380 | |
492 | |
381 | static void |
493 | static void |
382 | load_perl (pTHX_ Coro__State c) |
494 | load_perl (pTHX_ Coro__State c) |
383 | { |
495 | { |
|
|
496 | perl_slots *slot = c->slot; |
|
|
497 | c->slot = 0; |
|
|
498 | |
|
|
499 | PL_mainstack = c->mainstack; |
|
|
500 | |
|
|
501 | GvSV (PL_defgv) = slot->defsv; |
|
|
502 | GvAV (PL_defgv) = slot->defav; |
|
|
503 | GvSV (PL_errgv) = slot->errsv; |
|
|
504 | GvSV (irsgv) = slot->irsgv; |
|
|
505 | |
384 | #define VAR(name,type) PL_ ## name = c->name; |
506 | #define VAR(name,type) PL_ ## name = slot->name; |
385 | # include "state.h" |
507 | # include "state.h" |
386 | #undef VAR |
508 | #undef VAR |
387 | |
|
|
388 | GvSV (PL_defgv) = c->defsv; |
|
|
389 | GvAV (PL_defgv) = c->defav; |
|
|
390 | GvSV (PL_errgv) = c->errsv; |
|
|
391 | PL_defoutgv = c->deffh; |
|
|
392 | PL_rs = c->irssv; |
|
|
393 | GvSV (irsgv) = c->irssv_sv; |
|
|
394 | |
509 | |
395 | { |
510 | { |
396 | dSP; |
511 | dSP; |
|
|
512 | |
397 | CV *cv; |
513 | CV *cv; |
398 | |
514 | |
399 | /* now do the ugly restore mess */ |
515 | /* now do the ugly restore mess */ |
400 | while ((cv = (CV *)POPs)) |
516 | while (expect_true (cv = (CV *)POPs)) |
401 | { |
517 | { |
402 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
518 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
403 | CvDEPTH (cv) = PTR2IV (POPs); |
519 | CvDEPTH (cv) = PTR2IV (POPs); |
404 | CvPADLIST (cv) = (AV *)POPs; |
520 | CvPADLIST (cv) = (AV *)POPs; |
405 | } |
521 | } |
406 | |
522 | |
407 | PUTBACK; |
523 | PUTBACK; |
408 | } |
524 | } |
|
|
525 | |
|
|
526 | slf_frame = c->slf_frame; |
|
|
527 | CORO_THROW = c->except; |
409 | } |
528 | } |
410 | |
529 | |
411 | static void |
530 | static void |
412 | save_perl (pTHX_ Coro__State c) |
531 | save_perl (pTHX_ Coro__State c) |
413 | { |
532 | { |
|
|
533 | c->except = CORO_THROW; |
|
|
534 | c->slf_frame = slf_frame; |
|
|
535 | |
414 | { |
536 | { |
415 | dSP; |
537 | dSP; |
416 | I32 cxix = cxstack_ix; |
538 | I32 cxix = cxstack_ix; |
417 | PERL_CONTEXT *ccstk = cxstack; |
539 | PERL_CONTEXT *ccstk = cxstack; |
418 | PERL_SI *top_si = PL_curstackinfo; |
540 | PERL_SI *top_si = PL_curstackinfo; |
… | |
… | |
424 | |
546 | |
425 | XPUSHs (Nullsv); |
547 | XPUSHs (Nullsv); |
426 | /* this loop was inspired by pp_caller */ |
548 | /* this loop was inspired by pp_caller */ |
427 | for (;;) |
549 | for (;;) |
428 | { |
550 | { |
429 | while (cxix >= 0) |
551 | while (expect_true (cxix >= 0)) |
430 | { |
552 | { |
431 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
553 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
432 | |
554 | |
433 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
555 | if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
434 | { |
556 | { |
435 | CV *cv = cx->blk_sub.cv; |
557 | CV *cv = cx->blk_sub.cv; |
436 | |
558 | |
437 | if (CvDEPTH (cv)) |
559 | if (expect_true (CvDEPTH (cv))) |
438 | { |
560 | { |
439 | EXTEND (SP, 3); |
561 | EXTEND (SP, 3); |
440 | PUSHs ((SV *)CvPADLIST (cv)); |
562 | PUSHs ((SV *)CvPADLIST (cv)); |
441 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
563 | PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
442 | PUSHs ((SV *)cv); |
564 | PUSHs ((SV *)cv); |
443 | |
565 | |
444 | CvDEPTH (cv) = 0; |
566 | CvDEPTH (cv) = 0; |
445 | get_padlist (aTHX_ cv); |
567 | get_padlist (aTHX_ cv); |
446 | } |
568 | } |
447 | } |
569 | } |
448 | } |
570 | } |
449 | |
571 | |
450 | if (top_si->si_type == PERLSI_MAIN) |
572 | if (expect_true (top_si->si_type == PERLSI_MAIN)) |
451 | break; |
573 | break; |
452 | |
574 | |
453 | top_si = top_si->si_prev; |
575 | top_si = top_si->si_prev; |
454 | ccstk = top_si->si_cxstack; |
576 | ccstk = top_si->si_cxstack; |
455 | cxix = top_si->si_cxix; |
577 | cxix = top_si->si_cxix; |
456 | } |
578 | } |
457 | |
579 | |
458 | PUTBACK; |
580 | PUTBACK; |
459 | } |
581 | } |
460 | |
582 | |
|
|
583 | /* allocate some space on the context stack for our purposes */ |
|
|
584 | /* we manually unroll here, as usually 2 slots is enough */ |
|
|
585 | if (SLOT_COUNT >= 1) CXINC; |
|
|
586 | if (SLOT_COUNT >= 2) CXINC; |
|
|
587 | if (SLOT_COUNT >= 3) CXINC; |
|
|
588 | { |
|
|
589 | int i; |
|
|
590 | for (i = 3; i < SLOT_COUNT; ++i) |
|
|
591 | CXINC; |
|
|
592 | } |
|
|
593 | cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
|
|
594 | |
|
|
595 | c->mainstack = PL_mainstack; |
|
|
596 | |
|
|
597 | { |
|
|
598 | perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
|
|
599 | |
461 | c->defav = GvAV (PL_defgv); |
600 | slot->defav = GvAV (PL_defgv); |
462 | c->defsv = DEFSV; |
601 | slot->defsv = DEFSV; |
463 | c->errsv = ERRSV; |
602 | slot->errsv = ERRSV; |
464 | c->deffh = PL_defoutgv; |
|
|
465 | c->irssv = PL_rs; |
|
|
466 | c->irssv_sv = GvSV (irsgv); |
603 | slot->irsgv = GvSV (irsgv); |
467 | |
604 | |
468 | #define VAR(name,type)c->name = PL_ ## name; |
605 | #define VAR(name,type) slot->name = PL_ ## name; |
469 | # include "state.h" |
606 | # include "state.h" |
470 | #undef VAR |
607 | #undef VAR |
|
|
608 | } |
471 | } |
609 | } |
472 | |
610 | |
473 | /* |
611 | /* |
474 | * allocate various perl stacks. This is an exact copy |
612 | * allocate various perl stacks. This is almost an exact copy |
475 | * of perl.c:init_stacks, except that it uses less memory |
613 | * of perl.c:init_stacks, except that it uses less memory |
476 | * on the (sometimes correct) assumption that coroutines do |
614 | * on the (sometimes correct) assumption that coroutines do |
477 | * not usually need a lot of stackspace. |
615 | * not usually need a lot of stackspace. |
478 | */ |
616 | */ |
479 | #if CORO_PREFER_PERL_FUNCTIONS |
617 | #if CORO_PREFER_PERL_FUNCTIONS |
480 | # define coro_init_stacks init_stacks |
618 | # define coro_init_stacks(thx) init_stacks () |
481 | #else |
619 | #else |
482 | static void |
620 | static void |
483 | coro_init_stacks (pTHX) |
621 | coro_init_stacks (pTHX) |
484 | { |
622 | { |
485 | PL_curstackinfo = new_stackinfo(64, 6); |
623 | PL_curstackinfo = new_stackinfo(32, 8); |
486 | PL_curstackinfo->si_type = PERLSI_MAIN; |
624 | PL_curstackinfo->si_type = PERLSI_MAIN; |
487 | PL_curstack = PL_curstackinfo->si_stack; |
625 | PL_curstack = PL_curstackinfo->si_stack; |
488 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
626 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
489 | |
627 | |
490 | PL_stack_base = AvARRAY(PL_curstack); |
628 | PL_stack_base = AvARRAY(PL_curstack); |
491 | PL_stack_sp = PL_stack_base; |
629 | PL_stack_sp = PL_stack_base; |
492 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
630 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
493 | |
631 | |
494 | New(50,PL_tmps_stack,64,SV*); |
632 | New(50,PL_tmps_stack,32,SV*); |
495 | PL_tmps_floor = -1; |
633 | PL_tmps_floor = -1; |
496 | PL_tmps_ix = -1; |
634 | PL_tmps_ix = -1; |
497 | PL_tmps_max = 64; |
635 | PL_tmps_max = 32; |
498 | |
636 | |
499 | New(54,PL_markstack,16,I32); |
637 | New(54,PL_markstack,16,I32); |
500 | PL_markstack_ptr = PL_markstack; |
638 | PL_markstack_ptr = PL_markstack; |
501 | PL_markstack_max = PL_markstack + 16; |
639 | PL_markstack_max = PL_markstack + 16; |
502 | |
640 | |
503 | #ifdef SET_MARK_OFFSET |
641 | #ifdef SET_MARK_OFFSET |
504 | SET_MARK_OFFSET; |
642 | SET_MARK_OFFSET; |
505 | #endif |
643 | #endif |
506 | |
644 | |
507 | New(54,PL_scopestack,16,I32); |
645 | New(54,PL_scopestack,8,I32); |
508 | PL_scopestack_ix = 0; |
646 | PL_scopestack_ix = 0; |
509 | PL_scopestack_max = 16; |
647 | PL_scopestack_max = 8; |
510 | |
648 | |
511 | New(54,PL_savestack,64,ANY); |
649 | New(54,PL_savestack,24,ANY); |
512 | PL_savestack_ix = 0; |
650 | PL_savestack_ix = 0; |
513 | PL_savestack_max = 64; |
651 | PL_savestack_max = 24; |
514 | |
652 | |
515 | #if !PERL_VERSION_ATLEAST (5,9,0) |
653 | #if !PERL_VERSION_ATLEAST (5,10,0) |
516 | New(54,PL_retstack,4,OP*); |
654 | New(54,PL_retstack,4,OP*); |
517 | PL_retstack_ix = 0; |
655 | PL_retstack_ix = 0; |
518 | PL_retstack_max = 4; |
656 | PL_retstack_max = 4; |
519 | #endif |
657 | #endif |
520 | } |
658 | } |
… | |
… | |
522 | |
660 | |
523 | /* |
661 | /* |
524 | * destroy the stacks, the callchain etc... |
662 | * destroy the stacks, the callchain etc... |
525 | */ |
663 | */ |
526 | static void |
664 | static void |
527 | coro_destroy_stacks (pTHX) |
665 | coro_destruct_stacks (pTHX) |
528 | { |
666 | { |
529 | while (PL_curstackinfo->si_next) |
667 | while (PL_curstackinfo->si_next) |
530 | PL_curstackinfo = PL_curstackinfo->si_next; |
668 | PL_curstackinfo = PL_curstackinfo->si_next; |
531 | |
669 | |
532 | while (PL_curstackinfo) |
670 | while (PL_curstackinfo) |
… | |
… | |
543 | |
681 | |
544 | Safefree (PL_tmps_stack); |
682 | Safefree (PL_tmps_stack); |
545 | Safefree (PL_markstack); |
683 | Safefree (PL_markstack); |
546 | Safefree (PL_scopestack); |
684 | Safefree (PL_scopestack); |
547 | Safefree (PL_savestack); |
685 | Safefree (PL_savestack); |
548 | #if !PERL_VERSION_ATLEAST (5,9,0) |
686 | #if !PERL_VERSION_ATLEAST (5,10,0) |
549 | Safefree (PL_retstack); |
687 | Safefree (PL_retstack); |
550 | #endif |
688 | #endif |
551 | } |
689 | } |
552 | |
690 | |
553 | static size_t |
691 | static size_t |
554 | coro_rss (pTHX_ struct coro *coro) |
692 | coro_rss (pTHX_ struct coro *coro) |
555 | { |
693 | { |
556 | size_t rss = sizeof (coro); |
694 | size_t rss = sizeof (*coro); |
557 | |
695 | |
558 | if (coro->mainstack) |
696 | if (coro->mainstack) |
559 | { |
697 | { |
|
|
698 | perl_slots tmp_slot; |
|
|
699 | perl_slots *slot; |
|
|
700 | |
560 | if (coro->flags & CF_RUNNING) |
701 | if (coro->flags & CF_RUNNING) |
561 | { |
702 | { |
|
|
703 | slot = &tmp_slot; |
|
|
704 | |
562 | #define VAR(name,type)coro->name = PL_ ## name; |
705 | #define VAR(name,type) slot->name = PL_ ## name; |
563 | # include "state.h" |
706 | # include "state.h" |
564 | #undef VAR |
707 | #undef VAR |
565 | } |
708 | } |
|
|
709 | else |
|
|
710 | slot = coro->slot; |
566 | |
711 | |
|
|
712 | if (slot) |
|
|
713 | { |
567 | rss += sizeof (coro->curstackinfo); |
714 | rss += sizeof (slot->curstackinfo); |
568 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
569 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
715 | rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
570 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
716 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
571 | rss += coro->tmps_max * sizeof (SV *); |
717 | rss += slot->tmps_max * sizeof (SV *); |
572 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
718 | rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
573 | rss += coro->scopestack_max * sizeof (I32); |
719 | rss += slot->scopestack_max * sizeof (I32); |
574 | rss += coro->savestack_max * sizeof (ANY); |
720 | rss += slot->savestack_max * sizeof (ANY); |
575 | |
721 | |
576 | #if !PERL_VERSION_ATLEAST (5,9,0) |
722 | #if !PERL_VERSION_ATLEAST (5,10,0) |
577 | rss += coro->retstack_max * sizeof (OP *); |
723 | rss += slot->retstack_max * sizeof (OP *); |
578 | #endif |
724 | #endif |
|
|
725 | } |
579 | } |
726 | } |
580 | |
727 | |
581 | return rss; |
728 | return rss; |
582 | } |
729 | } |
583 | |
730 | |
584 | /** coroutine stack handling ************************************************/ |
731 | /** coroutine stack handling ************************************************/ |
585 | |
732 | |
|
|
733 | static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
|
|
734 | static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
|
|
735 | static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
|
|
736 | |
|
|
737 | /* apparently < 5.8.8 */ |
|
|
738 | #ifndef MgPV_nolen_const |
|
|
739 | #define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
|
|
740 | SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
|
|
741 | (const char*)(mg)->mg_ptr) |
|
|
742 | #endif |
|
|
743 | |
|
|
744 | /* |
|
|
745 | * This overrides the default magic get method of %SIG elements. |
|
|
746 | * The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
|
|
747 | * and instead of tryign to save and restore the hash elements, we just provide |
|
|
748 | * readback here. |
|
|
749 | * We only do this when the hook is != 0, as they are often set to 0 temporarily, |
|
|
750 | * not expecting this to actually change the hook. This is a potential problem |
|
|
751 | * when a schedule happens then, but we ignore this. |
|
|
752 | */ |
586 | static void |
753 | static int |
|
|
754 | coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
|
|
755 | { |
|
|
756 | const char *s = MgPV_nolen_const (mg); |
|
|
757 | |
|
|
758 | if (*s == '_') |
|
|
759 | { |
|
|
760 | SV **svp = 0; |
|
|
761 | |
|
|
762 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
763 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
764 | |
|
|
765 | if (svp) |
|
|
766 | { |
|
|
767 | sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
|
|
768 | return 0; |
|
|
769 | } |
|
|
770 | } |
|
|
771 | |
|
|
772 | return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
|
|
773 | } |
|
|
774 | |
|
|
775 | static int |
|
|
776 | coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
|
|
777 | { |
|
|
778 | const char *s = MgPV_nolen_const (mg); |
|
|
779 | |
|
|
780 | if (*s == '_') |
|
|
781 | { |
|
|
782 | SV **svp = 0; |
|
|
783 | |
|
|
784 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
785 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
786 | |
|
|
787 | if (svp) |
|
|
788 | { |
|
|
789 | SV *old = *svp; |
|
|
790 | *svp = 0; |
|
|
791 | SvREFCNT_dec (old); |
|
|
792 | return 0; |
|
|
793 | } |
|
|
794 | } |
|
|
795 | |
|
|
796 | return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
|
|
797 | } |
|
|
798 | |
|
|
799 | static int |
|
|
800 | coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
|
|
801 | { |
|
|
802 | const char *s = MgPV_nolen_const (mg); |
|
|
803 | |
|
|
804 | if (*s == '_') |
|
|
805 | { |
|
|
806 | SV **svp = 0; |
|
|
807 | |
|
|
808 | if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
|
|
809 | if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
|
|
810 | |
|
|
811 | if (svp) |
|
|
812 | { |
|
|
813 | SV *old = *svp; |
|
|
814 | *svp = newSVsv (sv); |
|
|
815 | SvREFCNT_dec (old); |
|
|
816 | return 0; |
|
|
817 | } |
|
|
818 | } |
|
|
819 | |
|
|
820 | return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
|
|
821 | } |
|
|
822 | |
|
|
823 | static void |
|
|
824 | prepare_nop (pTHX_ struct coro_transfer_args *ta) |
|
|
825 | { |
|
|
826 | /* kind of mega-hacky, but works */ |
|
|
827 | ta->next = ta->prev = (struct coro *)ta; |
|
|
828 | } |
|
|
829 | |
|
|
830 | static int |
|
|
831 | slf_check_nop (pTHX_ struct CoroSLF *frame) |
|
|
832 | { |
|
|
833 | return 0; |
|
|
834 | } |
|
|
835 | |
|
|
836 | static UNOP coro_setup_op; |
|
|
837 | |
|
|
838 | static void NOINLINE /* noinline to keep it out of the transfer fast path */ |
587 | coro_setup (pTHX_ struct coro *coro) |
839 | coro_setup (pTHX_ struct coro *coro) |
588 | { |
840 | { |
589 | /* |
841 | /* |
590 | * emulate part of the perl startup here. |
842 | * emulate part of the perl startup here. |
591 | */ |
843 | */ |
… | |
… | |
594 | PL_runops = RUNOPS_DEFAULT; |
846 | PL_runops = RUNOPS_DEFAULT; |
595 | PL_curcop = &PL_compiling; |
847 | PL_curcop = &PL_compiling; |
596 | PL_in_eval = EVAL_NULL; |
848 | PL_in_eval = EVAL_NULL; |
597 | PL_comppad = 0; |
849 | PL_comppad = 0; |
598 | PL_curpm = 0; |
850 | PL_curpm = 0; |
|
|
851 | PL_curpad = 0; |
599 | PL_localizing = 0; |
852 | PL_localizing = 0; |
600 | PL_dirty = 0; |
853 | PL_dirty = 0; |
601 | PL_restartop = 0; |
854 | PL_restartop = 0; |
|
|
855 | #if PERL_VERSION_ATLEAST (5,10,0) |
|
|
856 | PL_parser = 0; |
|
|
857 | #endif |
|
|
858 | |
|
|
859 | /* recreate the die/warn hooks */ |
|
|
860 | PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
|
|
861 | PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
602 | |
862 | |
603 | GvSV (PL_defgv) = NEWSV (0, 0); |
863 | GvSV (PL_defgv) = newSV (0); |
604 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
864 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
605 | GvSV (PL_errgv) = NEWSV (0, 0); |
865 | GvSV (PL_errgv) = newSV (0); |
606 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
866 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
607 | PL_rs = newSVsv (GvSV (irsgv)); |
867 | PL_rs = newSVsv (GvSV (irsgv)); |
608 | |
868 | PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
609 | { |
|
|
610 | IO *io = newIO (); |
|
|
611 | PL_defoutgv = newGVgen ("Coro"); |
|
|
612 | GvIOp(PL_defoutgv) = io; |
|
|
613 | IoTYPE (io) = IoTYPE_WRONLY; |
|
|
614 | IoOFP (io) = IoIFP (io) = PerlIO_stdout (); |
|
|
615 | IoFLAGS (io) |= IOf_FLUSH; |
|
|
616 | } |
|
|
617 | |
869 | |
618 | { |
870 | { |
619 | dSP; |
871 | dSP; |
620 | LOGOP myop; |
872 | UNOP myop; |
621 | |
873 | |
622 | Zero (&myop, 1, LOGOP); |
874 | Zero (&myop, 1, UNOP); |
623 | myop.op_next = Nullop; |
875 | myop.op_next = Nullop; |
|
|
876 | myop.op_type = OP_ENTERSUB; |
624 | myop.op_flags = OPf_WANT_VOID; |
877 | myop.op_flags = OPf_WANT_VOID; |
625 | |
878 | |
626 | PUSHMARK (SP); |
879 | PUSHMARK (SP); |
627 | XPUSHs (av_shift (GvAV (PL_defgv))); |
880 | PUSHs ((SV *)coro->startcv); |
628 | PUTBACK; |
881 | PUTBACK; |
629 | PL_op = (OP *)&myop; |
882 | PL_op = (OP *)&myop; |
630 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
883 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
631 | SPAGAIN; |
|
|
632 | } |
884 | } |
633 | |
885 | |
634 | ENTER; /* necessary e.g. for dounwind */ |
886 | /* this newly created coroutine might be run on an existing cctx which most |
635 | } |
887 | * likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
|
|
888 | */ |
|
|
889 | slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
|
|
890 | slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
636 | |
891 | |
|
|
892 | /* and we have to provide the pp_slf op in any case, so pp_slf can skip it */ |
|
|
893 | coro_setup_op.op_next = PL_op; |
|
|
894 | coro_setup_op.op_type = OP_CUSTOM; |
|
|
895 | coro_setup_op.op_ppaddr = pp_slf; |
|
|
896 | /* no flags etc. required, as an init function won't be called */ |
|
|
897 | |
|
|
898 | PL_op = (OP *)&coro_setup_op; |
|
|
899 | |
|
|
900 | /* copy throw, in case it was set before coro_setup */ |
|
|
901 | CORO_THROW = coro->except; |
|
|
902 | } |
|
|
903 | |
637 | static void |
904 | static void |
638 | coro_destroy (pTHX_ struct coro *coro) |
905 | coro_destruct (pTHX_ struct coro *coro) |
639 | { |
906 | { |
640 | if (!IN_DESTRUCT) |
907 | if (!IN_DESTRUCT) |
641 | { |
908 | { |
642 | /* restore all saved variables and stuff */ |
909 | /* restore all saved variables and stuff */ |
643 | LEAVE_SCOPE (0); |
910 | LEAVE_SCOPE (0); |
… | |
… | |
659 | SvREFCNT_dec (GvSV (PL_errgv)); |
926 | SvREFCNT_dec (GvSV (PL_errgv)); |
660 | SvREFCNT_dec (PL_defoutgv); |
927 | SvREFCNT_dec (PL_defoutgv); |
661 | SvREFCNT_dec (PL_rs); |
928 | SvREFCNT_dec (PL_rs); |
662 | SvREFCNT_dec (GvSV (irsgv)); |
929 | SvREFCNT_dec (GvSV (irsgv)); |
663 | |
930 | |
|
|
931 | SvREFCNT_dec (PL_diehook); |
|
|
932 | SvREFCNT_dec (PL_warnhook); |
|
|
933 | |
|
|
934 | SvREFCNT_dec (coro->saved_deffh); |
|
|
935 | SvREFCNT_dec (coro->rouse_cb); |
|
|
936 | |
664 | coro_destroy_stacks (aTHX); |
937 | coro_destruct_stacks (aTHX); |
665 | } |
938 | } |
666 | |
939 | |
667 | static void |
940 | INLINE void |
668 | free_coro_mortal (pTHX) |
941 | free_coro_mortal (pTHX) |
669 | { |
942 | { |
670 | if (coro_mortal) |
943 | if (expect_true (coro_mortal)) |
671 | { |
944 | { |
672 | SvREFCNT_dec (coro_mortal); |
945 | SvREFCNT_dec (coro_mortal); |
673 | coro_mortal = 0; |
946 | coro_mortal = 0; |
674 | } |
947 | } |
675 | } |
948 | } |
… | |
… | |
677 | static int |
950 | static int |
678 | runops_trace (pTHX) |
951 | runops_trace (pTHX) |
679 | { |
952 | { |
680 | COP *oldcop = 0; |
953 | COP *oldcop = 0; |
681 | int oldcxix = -2; |
954 | int oldcxix = -2; |
682 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
955 | struct coro *coro = SvSTATE_current; /* trace cctx is tied to specific coro */ |
683 | coro_cctx *cctx = coro->cctx; |
956 | coro_cctx *cctx = coro->cctx; |
684 | |
957 | |
685 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
958 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
686 | { |
959 | { |
687 | PERL_ASYNC_CHECK (); |
960 | PERL_ASYNC_CHECK (); |
… | |
… | |
704 | bot = PL_stack_base + cx->blk_oldsp + 1; |
977 | bot = PL_stack_base + cx->blk_oldsp + 1; |
705 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
978 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
706 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
979 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
707 | : bot; |
980 | : bot; |
708 | |
981 | |
|
|
982 | av_extend (av, top - bot); |
709 | while (bot < top) |
983 | while (bot < top) |
710 | av_push (av, SvREFCNT_inc (*bot++)); |
984 | av_push (av, SvREFCNT_inc_NN (*bot++)); |
711 | |
985 | |
712 | PL_runops = RUNOPS_DEFAULT; |
986 | PL_runops = RUNOPS_DEFAULT; |
713 | ENTER; |
987 | ENTER; |
714 | SAVETMPS; |
988 | SAVETMPS; |
715 | EXTEND (SP, 3); |
989 | EXTEND (SP, 3); |
… | |
… | |
753 | SAVETMPS; |
1027 | SAVETMPS; |
754 | EXTEND (SP, 3); |
1028 | EXTEND (SP, 3); |
755 | PUSHMARK (SP); |
1029 | PUSHMARK (SP); |
756 | PUSHs (&PL_sv_yes); |
1030 | PUSHs (&PL_sv_yes); |
757 | PUSHs (fullname); |
1031 | PUSHs (fullname); |
758 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1032 | PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
759 | PUTBACK; |
1033 | PUTBACK; |
760 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1034 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
761 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1035 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
762 | SPAGAIN; |
1036 | SPAGAIN; |
763 | FREETMPS; |
1037 | FREETMPS; |
… | |
… | |
795 | |
1069 | |
796 | TAINT_NOT; |
1070 | TAINT_NOT; |
797 | return 0; |
1071 | return 0; |
798 | } |
1072 | } |
799 | |
1073 | |
800 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
1074 | static struct coro_cctx *cctx_ssl_cctx; |
801 | /* _cctx_init should be careful, as it could be called at almost any time */ |
1075 | static struct CoroSLF cctx_ssl_frame; |
802 | /* during execution of a perl program */ |
1076 | |
|
|
1077 | static void |
|
|
1078 | slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
|
|
1079 | { |
|
|
1080 | ta->prev = (struct coro *)cctx_ssl_cctx; |
|
|
1081 | ta->next = 0; |
|
|
1082 | } |
|
|
1083 | |
|
|
1084 | static int |
|
|
1085 | slf_check_set_stacklevel (pTHX_ struct CoroSLF *frame) |
|
|
1086 | { |
|
|
1087 | *frame = cctx_ssl_frame; |
|
|
1088 | |
|
|
1089 | return frame->check (aTHX_ frame); /* execute the restored frame - there must be one */ |
|
|
1090 | } |
|
|
1091 | |
|
|
1092 | /* initialises PL_top_env and injects a pseudo-slf-call to set the stacklevel */ |
803 | static void NOINLINE |
1093 | static void NOINLINE |
804 | prepare_cctx (pTHX_ coro_cctx *cctx) |
1094 | cctx_prepare (pTHX_ coro_cctx *cctx) |
805 | { |
1095 | { |
806 | dSP; |
|
|
807 | LOGOP myop; |
|
|
808 | |
|
|
809 | PL_top_env = &PL_start_env; |
1096 | PL_top_env = &PL_start_env; |
810 | |
1097 | |
811 | if (cctx->flags & CC_TRACE) |
1098 | if (cctx->flags & CC_TRACE) |
812 | PL_runops = runops_trace; |
1099 | PL_runops = runops_trace; |
813 | |
1100 | |
814 | Zero (&myop, 1, LOGOP); |
1101 | /* we already must be executing an SLF op, there is no other valid way |
815 | myop.op_next = PL_op; |
1102 | * that can lead to creation of a new cctx */ |
816 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1103 | assert (("FATAL: can't prepare slf-less cctx in Coro module (please report)", |
|
|
1104 | slf_frame.prepare && PL_op->op_ppaddr == pp_slf)); |
817 | |
1105 | |
818 | PUSHMARK (SP); |
1106 | /* we must emulate leaving pp_slf, which is done inside slf_check_set_stacklevel */ |
819 | EXTEND (SP, 2); |
1107 | cctx_ssl_cctx = cctx; |
820 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
1108 | cctx_ssl_frame = slf_frame; |
821 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1109 | |
822 | PUTBACK; |
1110 | slf_frame.prepare = slf_prepare_set_stacklevel; |
823 | PL_op = (OP *)&myop; |
1111 | slf_frame.check = slf_check_set_stacklevel; |
824 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1112 | } |
825 | SPAGAIN; |
1113 | |
|
|
1114 | /* the tail of transfer: execute stuff we can only do after a transfer */ |
|
|
1115 | INLINE void |
|
|
1116 | transfer_tail (pTHX) |
|
|
1117 | { |
|
|
1118 | free_coro_mortal (aTHX); |
826 | } |
1119 | } |
827 | |
1120 | |
828 | /* |
1121 | /* |
829 | * this is a _very_ stripped down perl interpreter ;) |
1122 | * this is a _very_ stripped down perl interpreter ;) |
830 | */ |
1123 | */ |
831 | static void |
1124 | static void |
832 | coro_run (void *arg) |
1125 | cctx_run (void *arg) |
833 | { |
1126 | { |
|
|
1127 | #ifdef USE_ITHREADS |
|
|
1128 | # if CORO_PTHREAD |
|
|
1129 | PERL_SET_CONTEXT (coro_thx); |
|
|
1130 | # endif |
|
|
1131 | #endif |
|
|
1132 | { |
834 | dTHX; |
1133 | dTHX; |
835 | |
1134 | |
836 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
1135 | /* normally we would need to skip the entersub here */ |
837 | UNLOCK; |
1136 | /* not doing so will re-execute it, which is exactly what we want */ |
838 | |
|
|
839 | /* we now skip the entersub that lead to transfer() */ |
|
|
840 | PL_op = PL_op->op_next; |
1137 | /* PL_nop = PL_nop->op_next */ |
841 | |
1138 | |
842 | /* inject a fake subroutine call to cctx_init */ |
1139 | /* inject a fake subroutine call to cctx_init */ |
843 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
1140 | cctx_prepare (aTHX_ (coro_cctx *)arg); |
844 | |
1141 | |
|
|
1142 | /* cctx_run is the alternative tail of transfer() */ |
|
|
1143 | transfer_tail (aTHX); |
|
|
1144 | |
845 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
1145 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
846 | PL_restartop = PL_op; |
1146 | PL_restartop = PL_op; |
847 | perl_run (PL_curinterp); |
1147 | perl_run (PL_curinterp); |
848 | |
|
|
849 | /* |
1148 | /* |
|
|
1149 | * Unfortunately, there is no way to get at the return values of the |
|
|
1150 | * coro body here, as perl_run destroys these |
|
|
1151 | */ |
|
|
1152 | |
|
|
1153 | /* |
850 | * If perl-run returns we assume exit() was being called or the coro |
1154 | * If perl-run returns we assume exit() was being called or the coro |
851 | * fell off the end, which seems to be the only valid (non-bug) |
1155 | * fell off the end, which seems to be the only valid (non-bug) |
852 | * reason for perl_run to return. We try to exit by jumping to the |
1156 | * reason for perl_run to return. We try to exit by jumping to the |
853 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
1157 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
854 | * coroutine as Coro has no such concept |
1158 | * coroutine as Coro has no such concept |
855 | */ |
1159 | */ |
856 | PL_top_env = main_top_env; |
1160 | PL_top_env = main_top_env; |
857 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1161 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
1162 | } |
858 | } |
1163 | } |
859 | |
1164 | |
860 | static coro_cctx * |
1165 | static coro_cctx * |
861 | cctx_new () |
1166 | cctx_new () |
862 | { |
1167 | { |
863 | coro_cctx *cctx; |
1168 | coro_cctx *cctx; |
|
|
1169 | |
|
|
1170 | ++cctx_count; |
|
|
1171 | New (0, cctx, 1, coro_cctx); |
|
|
1172 | |
|
|
1173 | cctx->gen = cctx_gen; |
|
|
1174 | cctx->flags = 0; |
|
|
1175 | cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
|
|
1176 | |
|
|
1177 | return cctx; |
|
|
1178 | } |
|
|
1179 | |
|
|
1180 | /* create a new cctx only suitable as source */ |
|
|
1181 | static coro_cctx * |
|
|
1182 | cctx_new_empty () |
|
|
1183 | { |
|
|
1184 | coro_cctx *cctx = cctx_new (); |
|
|
1185 | |
|
|
1186 | cctx->sptr = 0; |
|
|
1187 | coro_create (&cctx->cctx, 0, 0, 0, 0); |
|
|
1188 | |
|
|
1189 | return cctx; |
|
|
1190 | } |
|
|
1191 | |
|
|
1192 | /* create a new cctx suitable as destination/running a perl interpreter */ |
|
|
1193 | static coro_cctx * |
|
|
1194 | cctx_new_run () |
|
|
1195 | { |
|
|
1196 | coro_cctx *cctx = cctx_new (); |
864 | void *stack_start; |
1197 | void *stack_start; |
865 | size_t stack_size; |
1198 | size_t stack_size; |
866 | |
1199 | |
867 | ++cctx_count; |
|
|
868 | |
|
|
869 | Newz (0, cctx, 1, coro_cctx); |
|
|
870 | |
|
|
871 | #if HAVE_MMAP |
1200 | #if HAVE_MMAP |
872 | |
|
|
873 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1201 | cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
874 | /* mmap supposedly does allocate-on-write for us */ |
1202 | /* mmap supposedly does allocate-on-write for us */ |
875 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1203 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
876 | |
1204 | |
877 | if (cctx->sptr != (void *)-1) |
1205 | if (cctx->sptr != (void *)-1) |
878 | { |
1206 | { |
879 | # if CORO_STACKGUARD |
1207 | #if CORO_STACKGUARD |
880 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1208 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
881 | # endif |
1209 | #endif |
882 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
1210 | stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
883 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1211 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
884 | cctx->flags |= CC_MAPPED; |
1212 | cctx->flags |= CC_MAPPED; |
885 | } |
1213 | } |
886 | else |
1214 | else |
887 | #endif |
1215 | #endif |
888 | { |
1216 | { |
889 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
1217 | cctx->ssize = cctx_stacksize * (long)sizeof (long); |
890 | New (0, cctx->sptr, coro_stacksize, long); |
1218 | New (0, cctx->sptr, cctx_stacksize, long); |
891 | |
1219 | |
892 | if (!cctx->sptr) |
1220 | if (!cctx->sptr) |
893 | { |
1221 | { |
894 | perror ("FATAL: unable to allocate stack for coroutine"); |
1222 | perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
895 | _exit (EXIT_FAILURE); |
1223 | _exit (EXIT_FAILURE); |
896 | } |
1224 | } |
897 | |
1225 | |
898 | stack_start = cctx->sptr; |
1226 | stack_start = cctx->sptr; |
899 | stack_size = cctx->ssize; |
1227 | stack_size = cctx->ssize; |
900 | } |
1228 | } |
901 | |
1229 | |
902 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
1230 | #if CORO_USE_VALGRIND |
|
|
1231 | cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
|
|
1232 | #endif |
|
|
1233 | |
903 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
1234 | coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
904 | |
1235 | |
905 | return cctx; |
1236 | return cctx; |
906 | } |
1237 | } |
907 | |
1238 | |
908 | static void |
1239 | static void |
… | |
… | |
910 | { |
1241 | { |
911 | if (!cctx) |
1242 | if (!cctx) |
912 | return; |
1243 | return; |
913 | |
1244 | |
914 | --cctx_count; |
1245 | --cctx_count; |
|
|
1246 | coro_destroy (&cctx->cctx); |
915 | |
1247 | |
|
|
1248 | /* coro_transfer creates new, empty cctx's */ |
|
|
1249 | if (cctx->sptr) |
|
|
1250 | { |
916 | #if CORO_USE_VALGRIND |
1251 | #if CORO_USE_VALGRIND |
917 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1252 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
918 | #endif |
1253 | #endif |
919 | |
1254 | |
920 | #if HAVE_MMAP |
1255 | #if HAVE_MMAP |
921 | if (cctx->flags & CC_MAPPED) |
1256 | if (cctx->flags & CC_MAPPED) |
922 | munmap (cctx->sptr, cctx->ssize); |
1257 | munmap (cctx->sptr, cctx->ssize); |
923 | else |
1258 | else |
924 | #endif |
1259 | #endif |
925 | Safefree (cctx->sptr); |
1260 | Safefree (cctx->sptr); |
|
|
1261 | } |
926 | |
1262 | |
927 | Safefree (cctx); |
1263 | Safefree (cctx); |
928 | } |
1264 | } |
|
|
1265 | |
|
|
1266 | /* wether this cctx should be destructed */ |
|
|
1267 | #define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
929 | |
1268 | |
930 | static coro_cctx * |
1269 | static coro_cctx * |
931 | cctx_get (pTHX) |
1270 | cctx_get (pTHX) |
932 | { |
1271 | { |
933 | while (cctx_first) |
1272 | while (expect_true (cctx_first)) |
934 | { |
1273 | { |
935 | coro_cctx *cctx = cctx_first; |
1274 | coro_cctx *cctx = cctx_first; |
936 | cctx_first = cctx->next; |
1275 | cctx_first = cctx->next; |
937 | --cctx_idle; |
1276 | --cctx_idle; |
938 | |
1277 | |
939 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
1278 | if (expect_true (!CCTX_EXPIRED (cctx))) |
940 | return cctx; |
1279 | return cctx; |
941 | |
1280 | |
942 | cctx_destroy (cctx); |
1281 | cctx_destroy (cctx); |
943 | } |
1282 | } |
944 | |
1283 | |
945 | return cctx_new (); |
1284 | return cctx_new_run (); |
946 | } |
1285 | } |
947 | |
1286 | |
948 | static void |
1287 | static void |
949 | cctx_put (coro_cctx *cctx) |
1288 | cctx_put (coro_cctx *cctx) |
950 | { |
1289 | { |
|
|
1290 | assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
|
|
1291 | |
951 | /* free another cctx if overlimit */ |
1292 | /* free another cctx if overlimit */ |
952 | if (cctx_idle >= MAX_IDLE_CCTX) |
1293 | if (expect_false (cctx_idle >= cctx_max_idle)) |
953 | { |
1294 | { |
954 | coro_cctx *first = cctx_first; |
1295 | coro_cctx *first = cctx_first; |
955 | cctx_first = first->next; |
1296 | cctx_first = first->next; |
956 | --cctx_idle; |
1297 | --cctx_idle; |
957 | |
1298 | |
… | |
… | |
963 | cctx_first = cctx; |
1304 | cctx_first = cctx; |
964 | } |
1305 | } |
965 | |
1306 | |
966 | /** coroutine switching *****************************************************/ |
1307 | /** coroutine switching *****************************************************/ |
967 | |
1308 | |
968 | static void NOINLINE |
1309 | static void |
969 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1310 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
970 | { |
1311 | { |
971 | if (prev != next) |
1312 | /* TODO: throwing up here is considered harmful */ |
|
|
1313 | |
|
|
1314 | if (expect_true (prev != next)) |
972 | { |
1315 | { |
973 | if (!(prev->flags & (CF_RUNNING | CF_NEW))) |
1316 | if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
974 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
1317 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
975 | |
1318 | |
976 | if (next->flags & CF_RUNNING) |
1319 | if (expect_false (next->flags & CF_RUNNING)) |
977 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
1320 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
978 | |
1321 | |
979 | if (next->flags & CF_DESTROYED) |
1322 | if (expect_false (next->flags & CF_DESTROYED)) |
980 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
1323 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
981 | |
1324 | |
|
|
1325 | #if !PERL_VERSION_ATLEAST (5,10,0) |
982 | if (PL_lex_state != LEX_NOTPARSING) |
1326 | if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
983 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
1327 | croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
|
|
1328 | #endif |
984 | } |
1329 | } |
985 | } |
1330 | } |
986 | |
1331 | |
987 | /* always use the TRANSFER macro */ |
1332 | /* always use the TRANSFER macro */ |
988 | static void NOINLINE |
1333 | static void NOINLINE /* noinline so we have a fixed stackframe */ |
989 | transfer (pTHX_ struct coro *prev, struct coro *next) |
1334 | transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
990 | { |
1335 | { |
991 | dSTACKLEVEL; |
1336 | dSTACKLEVEL; |
992 | |
1337 | |
993 | /* sometimes transfer is only called to set idle_sp */ |
1338 | /* sometimes transfer is only called to set idle_sp */ |
994 | if (!next) |
1339 | if (expect_false (!next)) |
995 | { |
1340 | { |
996 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
1341 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
997 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1342 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
998 | } |
1343 | } |
999 | else if (prev != next) |
1344 | else if (expect_true (prev != next)) |
1000 | { |
1345 | { |
1001 | coro_cctx *prev__cctx; |
1346 | coro_cctx *prev__cctx; |
1002 | |
1347 | |
1003 | if (prev->flags & CF_NEW) |
1348 | if (expect_false (prev->flags & CF_NEW)) |
1004 | { |
1349 | { |
1005 | /* create a new empty context */ |
1350 | /* create a new empty/source context */ |
1006 | Newz (0, prev->cctx, 1, coro_cctx); |
1351 | prev->cctx = cctx_new_empty (); |
1007 | prev->flags &= ~CF_NEW; |
1352 | prev->flags &= ~CF_NEW; |
1008 | prev->flags |= CF_RUNNING; |
1353 | prev->flags |= CF_RUNNING; |
1009 | } |
1354 | } |
1010 | |
1355 | |
1011 | prev->flags &= ~CF_RUNNING; |
1356 | prev->flags &= ~CF_RUNNING; |
1012 | next->flags |= CF_RUNNING; |
1357 | next->flags |= CF_RUNNING; |
1013 | |
1358 | |
1014 | LOCK; |
1359 | /* first get rid of the old state */ |
|
|
1360 | save_perl (aTHX_ prev); |
1015 | |
1361 | |
1016 | if (next->flags & CF_NEW) |
1362 | if (expect_false (next->flags & CF_NEW)) |
1017 | { |
1363 | { |
1018 | /* need to start coroutine */ |
1364 | /* need to start coroutine */ |
1019 | next->flags &= ~CF_NEW; |
1365 | next->flags &= ~CF_NEW; |
1020 | /* first get rid of the old state */ |
|
|
1021 | save_perl (aTHX_ prev); |
|
|
1022 | /* setup coroutine call */ |
1366 | /* setup coroutine call */ |
1023 | coro_setup (aTHX_ next); |
1367 | coro_setup (aTHX_ next); |
1024 | } |
1368 | } |
1025 | else |
1369 | else |
|
|
1370 | load_perl (aTHX_ next); |
|
|
1371 | |
|
|
1372 | prev__cctx = prev->cctx; |
|
|
1373 | |
|
|
1374 | /* possibly untie and reuse the cctx */ |
|
|
1375 | if (expect_true ( |
|
|
1376 | prev__cctx->idle_sp == STACKLEVEL |
|
|
1377 | && !(prev__cctx->flags & CC_TRACE) |
|
|
1378 | && !force_cctx |
|
|
1379 | )) |
1026 | { |
1380 | { |
1027 | /* coroutine already started */ |
|
|
1028 | save_perl (aTHX_ prev); |
|
|
1029 | load_perl (aTHX_ next); |
|
|
1030 | } |
|
|
1031 | |
|
|
1032 | prev__cctx = prev->cctx; |
|
|
1033 | |
|
|
1034 | /* possibly "free" the cctx */ |
|
|
1035 | if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) |
|
|
1036 | { |
|
|
1037 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
1381 | /* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1038 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
1382 | assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1039 | |
1383 | |
1040 | prev->cctx = 0; |
1384 | prev->cctx = 0; |
|
|
1385 | |
|
|
1386 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1387 | /* without this the next cctx_get might destroy the prev__cctx while still in use */ |
|
|
1388 | if (expect_false (CCTX_EXPIRED (prev__cctx))) |
|
|
1389 | if (!next->cctx) |
|
|
1390 | next->cctx = cctx_get (aTHX); |
1041 | |
1391 | |
1042 | cctx_put (prev__cctx); |
1392 | cctx_put (prev__cctx); |
1043 | } |
1393 | } |
1044 | |
1394 | |
1045 | ++next->usecount; |
1395 | ++next->usecount; |
1046 | |
1396 | |
1047 | if (!next->cctx) |
1397 | if (expect_true (!next->cctx)) |
1048 | next->cctx = cctx_get (aTHX); |
1398 | next->cctx = cctx_get (aTHX); |
1049 | |
1399 | |
1050 | if (prev__cctx != next->cctx) |
1400 | if (expect_false (prev__cctx != next->cctx)) |
1051 | { |
1401 | { |
1052 | prev__cctx->top_env = PL_top_env; |
1402 | prev__cctx->top_env = PL_top_env; |
1053 | PL_top_env = next->cctx->top_env; |
1403 | PL_top_env = next->cctx->top_env; |
1054 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1404 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1055 | } |
1405 | } |
1056 | |
1406 | |
1057 | free_coro_mortal (aTHX); |
1407 | transfer_tail (aTHX); |
1058 | UNLOCK; |
|
|
1059 | } |
1408 | } |
1060 | } |
1409 | } |
1061 | |
1410 | |
1062 | struct transfer_args |
|
|
1063 | { |
|
|
1064 | struct coro *prev, *next; |
|
|
1065 | }; |
|
|
1066 | |
|
|
1067 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
1411 | #define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1068 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1412 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1069 | |
1413 | |
1070 | /** high level stuff ********************************************************/ |
1414 | /** high level stuff ********************************************************/ |
1071 | |
1415 | |
1072 | static int |
1416 | static int |
1073 | coro_state_destroy (pTHX_ struct coro *coro) |
1417 | coro_state_destroy (pTHX_ struct coro *coro) |
1074 | { |
1418 | { |
1075 | if (coro->flags & CF_DESTROYED) |
1419 | if (coro->flags & CF_DESTROYED) |
1076 | return 0; |
1420 | return 0; |
|
|
1421 | |
|
|
1422 | if (coro->on_destroy) |
|
|
1423 | coro->on_destroy (aTHX_ coro); |
1077 | |
1424 | |
1078 | coro->flags |= CF_DESTROYED; |
1425 | coro->flags |= CF_DESTROYED; |
1079 | |
1426 | |
1080 | if (coro->flags & CF_READY) |
1427 | if (coro->flags & CF_READY) |
1081 | { |
1428 | { |
1082 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1429 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
1083 | /* alternative: look through all ready queues and remove the coro */ |
1430 | /* alternative: look through all ready queues and remove the coro */ |
1084 | LOCK; |
|
|
1085 | --coro_nready; |
1431 | --coro_nready; |
1086 | UNLOCK; |
|
|
1087 | } |
1432 | } |
1088 | else |
1433 | else |
1089 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1434 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1090 | |
1435 | |
1091 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1436 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1092 | { |
1437 | { |
1093 | struct coro temp; |
1438 | struct coro temp; |
1094 | |
1439 | |
1095 | if (coro->flags & CF_RUNNING) |
1440 | assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1096 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1097 | |
1441 | |
1098 | save_perl (aTHX_ &temp); |
1442 | save_perl (aTHX_ &temp); |
1099 | load_perl (aTHX_ coro); |
1443 | load_perl (aTHX_ coro); |
1100 | |
1444 | |
1101 | coro_destroy (aTHX_ coro); |
1445 | coro_destruct (aTHX_ coro); |
1102 | |
1446 | |
1103 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
1447 | load_perl (aTHX_ &temp); |
1104 | |
1448 | |
1105 | coro->mainstack = 0; |
1449 | coro->slot = 0; |
1106 | } |
1450 | } |
1107 | |
1451 | |
1108 | cctx_destroy (coro->cctx); |
1452 | cctx_destroy (coro->cctx); |
|
|
1453 | SvREFCNT_dec (coro->startcv); |
1109 | SvREFCNT_dec (coro->args); |
1454 | SvREFCNT_dec (coro->args); |
|
|
1455 | SvREFCNT_dec (CORO_THROW); |
1110 | |
1456 | |
1111 | if (coro->next) coro->next->prev = coro->prev; |
1457 | if (coro->next) coro->next->prev = coro->prev; |
1112 | if (coro->prev) coro->prev->next = coro->next; |
1458 | if (coro->prev) coro->prev->next = coro->next; |
1113 | if (coro == coro_first) coro_first = coro->next; |
1459 | if (coro == coro_first) coro_first = coro->next; |
1114 | |
1460 | |
… | |
… | |
1152 | # define MGf_DUP 0 |
1498 | # define MGf_DUP 0 |
1153 | #endif |
1499 | #endif |
1154 | }; |
1500 | }; |
1155 | |
1501 | |
1156 | static void |
1502 | static void |
1157 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
1503 | prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1158 | { |
1504 | { |
1159 | ta->prev = SvSTATE (prev_sv); |
1505 | ta->prev = SvSTATE (prev_sv); |
1160 | ta->next = SvSTATE (next_sv); |
1506 | ta->next = SvSTATE (next_sv); |
1161 | TRANSFER_CHECK (*ta); |
1507 | TRANSFER_CHECK (*ta); |
1162 | } |
1508 | } |
1163 | |
1509 | |
1164 | static void |
1510 | static void |
1165 | api_transfer (SV *prev_sv, SV *next_sv) |
1511 | api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1166 | { |
1512 | { |
1167 | dTHX; |
|
|
1168 | struct transfer_args ta; |
1513 | struct coro_transfer_args ta; |
1169 | |
1514 | |
1170 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1515 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1171 | TRANSFER (ta); |
1516 | TRANSFER (ta, 1); |
|
|
1517 | } |
|
|
1518 | |
|
|
1519 | /*****************************************************************************/ |
|
|
1520 | /* gensub: simple closure generation utility */ |
|
|
1521 | |
|
|
1522 | #define GENSUB_ARG CvXSUBANY (cv).any_ptr |
|
|
1523 | |
|
|
1524 | /* create a closure from XS, returns a code reference */ |
|
|
1525 | /* the arg can be accessed via GENSUB_ARG from the callback */ |
|
|
1526 | /* the callback must use dXSARGS/XSRETURN */ |
|
|
1527 | static SV * |
|
|
1528 | gensub (pTHX_ void (*xsub)(pTHX_ CV *), void *arg) |
|
|
1529 | { |
|
|
1530 | CV *cv = (CV *)newSV (0); |
|
|
1531 | |
|
|
1532 | sv_upgrade ((SV *)cv, SVt_PVCV); |
|
|
1533 | |
|
|
1534 | CvANON_on (cv); |
|
|
1535 | CvISXSUB_on (cv); |
|
|
1536 | CvXSUB (cv) = xsub; |
|
|
1537 | GENSUB_ARG = arg; |
|
|
1538 | |
|
|
1539 | return newRV_noinc ((SV *)cv); |
1172 | } |
1540 | } |
1173 | |
1541 | |
1174 | /** Coro ********************************************************************/ |
1542 | /** Coro ********************************************************************/ |
1175 | |
1543 | |
1176 | static void |
1544 | INLINE void |
1177 | coro_enq (pTHX_ SV *coro_sv) |
1545 | coro_enq (pTHX_ struct coro *coro) |
1178 | { |
1546 | { |
1179 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1547 | av_push (coro_ready [coro->prio - PRIO_MIN], SvREFCNT_inc_NN (coro->hv)); |
1180 | } |
1548 | } |
1181 | |
1549 | |
1182 | static SV * |
1550 | INLINE SV * |
1183 | coro_deq (pTHX_ int min_prio) |
1551 | coro_deq (pTHX) |
1184 | { |
1552 | { |
1185 | int prio = PRIO_MAX - PRIO_MIN; |
1553 | int prio; |
1186 | |
1554 | |
1187 | min_prio -= PRIO_MIN; |
|
|
1188 | if (min_prio < 0) |
|
|
1189 | min_prio = 0; |
|
|
1190 | |
|
|
1191 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1555 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1192 | if (AvFILLp (coro_ready [prio]) >= 0) |
1556 | if (AvFILLp (coro_ready [prio]) >= 0) |
1193 | return av_shift (coro_ready [prio]); |
1557 | return av_shift (coro_ready [prio]); |
1194 | |
1558 | |
1195 | return 0; |
1559 | return 0; |
1196 | } |
1560 | } |
1197 | |
1561 | |
1198 | static int |
1562 | static int |
1199 | api_ready (SV *coro_sv) |
1563 | api_ready (pTHX_ SV *coro_sv) |
1200 | { |
1564 | { |
1201 | dTHX; |
|
|
1202 | struct coro *coro; |
1565 | struct coro *coro; |
|
|
1566 | SV *sv_hook; |
|
|
1567 | void (*xs_hook)(void); |
1203 | |
1568 | |
1204 | if (SvROK (coro_sv)) |
1569 | if (SvROK (coro_sv)) |
1205 | coro_sv = SvRV (coro_sv); |
1570 | coro_sv = SvRV (coro_sv); |
1206 | |
1571 | |
1207 | coro = SvSTATE (coro_sv); |
1572 | coro = SvSTATE (coro_sv); |
… | |
… | |
1209 | if (coro->flags & CF_READY) |
1574 | if (coro->flags & CF_READY) |
1210 | return 0; |
1575 | return 0; |
1211 | |
1576 | |
1212 | coro->flags |= CF_READY; |
1577 | coro->flags |= CF_READY; |
1213 | |
1578 | |
1214 | LOCK; |
1579 | sv_hook = coro_nready ? 0 : coro_readyhook; |
1215 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
1580 | xs_hook = coro_nready ? 0 : coroapi.readyhook; |
|
|
1581 | |
|
|
1582 | coro_enq (aTHX_ coro); |
1216 | ++coro_nready; |
1583 | ++coro_nready; |
1217 | UNLOCK; |
1584 | |
|
|
1585 | if (sv_hook) |
|
|
1586 | { |
|
|
1587 | dSP; |
|
|
1588 | |
|
|
1589 | ENTER; |
|
|
1590 | SAVETMPS; |
|
|
1591 | |
|
|
1592 | PUSHMARK (SP); |
|
|
1593 | PUTBACK; |
|
|
1594 | call_sv (sv_hook, G_VOID | G_DISCARD); |
|
|
1595 | |
|
|
1596 | FREETMPS; |
|
|
1597 | LEAVE; |
|
|
1598 | } |
|
|
1599 | |
|
|
1600 | if (xs_hook) |
|
|
1601 | xs_hook (); |
1218 | |
1602 | |
1219 | return 1; |
1603 | return 1; |
1220 | } |
1604 | } |
1221 | |
1605 | |
1222 | static int |
1606 | static int |
1223 | api_is_ready (SV *coro_sv) |
1607 | api_is_ready (pTHX_ SV *coro_sv) |
1224 | { |
1608 | { |
1225 | dTHX; |
|
|
1226 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1609 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1227 | } |
1610 | } |
1228 | |
1611 | |
1229 | static void |
1612 | INLINE void |
1230 | prepare_schedule (pTHX_ struct transfer_args *ta) |
1613 | prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1231 | { |
1614 | { |
1232 | SV *prev_sv, *next_sv; |
1615 | SV *prev_sv, *next_sv; |
1233 | |
1616 | |
1234 | for (;;) |
1617 | for (;;) |
1235 | { |
1618 | { |
1236 | LOCK; |
|
|
1237 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
1619 | next_sv = coro_deq (aTHX); |
1238 | |
1620 | |
1239 | /* nothing to schedule: call the idle handler */ |
1621 | /* nothing to schedule: call the idle handler */ |
1240 | if (!next_sv) |
1622 | if (expect_false (!next_sv)) |
1241 | { |
1623 | { |
1242 | dSP; |
1624 | dSP; |
1243 | UNLOCK; |
|
|
1244 | |
1625 | |
1245 | ENTER; |
1626 | ENTER; |
1246 | SAVETMPS; |
1627 | SAVETMPS; |
1247 | |
1628 | |
1248 | PUSHMARK (SP); |
1629 | PUSHMARK (SP); |
1249 | PUTBACK; |
1630 | PUTBACK; |
1250 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1631 | call_sv (get_sv ("Coro::idle", FALSE), G_VOID | G_DISCARD); |
1251 | |
1632 | |
1252 | FREETMPS; |
1633 | FREETMPS; |
1253 | LEAVE; |
1634 | LEAVE; |
1254 | continue; |
1635 | continue; |
1255 | } |
1636 | } |
1256 | |
1637 | |
1257 | ta->next = SvSTATE (next_sv); |
1638 | ta->next = SvSTATE_hv (next_sv); |
1258 | |
1639 | |
1259 | /* cannot transfer to destroyed coros, skip and look for next */ |
1640 | /* cannot transfer to destroyed coros, skip and look for next */ |
1260 | if (ta->next->flags & CF_DESTROYED) |
1641 | if (expect_false (ta->next->flags & CF_DESTROYED)) |
1261 | { |
1642 | { |
1262 | UNLOCK; |
|
|
1263 | SvREFCNT_dec (next_sv); |
1643 | SvREFCNT_dec (next_sv); |
1264 | /* coro_nready is already taken care of by destroy */ |
1644 | /* coro_nready has already been taken care of by destroy */ |
1265 | continue; |
1645 | continue; |
1266 | } |
1646 | } |
1267 | |
1647 | |
1268 | --coro_nready; |
1648 | --coro_nready; |
1269 | UNLOCK; |
|
|
1270 | break; |
1649 | break; |
1271 | } |
1650 | } |
1272 | |
1651 | |
1273 | /* free this only after the transfer */ |
1652 | /* free this only after the transfer */ |
1274 | prev_sv = SvRV (coro_current); |
1653 | prev_sv = SvRV (coro_current); |
1275 | ta->prev = SvSTATE (prev_sv); |
1654 | ta->prev = SvSTATE_hv (prev_sv); |
1276 | TRANSFER_CHECK (*ta); |
1655 | TRANSFER_CHECK (*ta); |
1277 | assert (ta->next->flags & CF_READY); |
1656 | assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1278 | ta->next->flags &= ~CF_READY; |
1657 | ta->next->flags &= ~CF_READY; |
1279 | SvRV_set (coro_current, next_sv); |
1658 | SvRV_set (coro_current, next_sv); |
1280 | |
1659 | |
1281 | LOCK; |
|
|
1282 | free_coro_mortal (aTHX); |
1660 | free_coro_mortal (aTHX); |
1283 | coro_mortal = prev_sv; |
1661 | coro_mortal = prev_sv; |
1284 | UNLOCK; |
|
|
1285 | } |
1662 | } |
1286 | |
1663 | |
1287 | static void |
1664 | INLINE void |
1288 | prepare_cede (pTHX_ struct transfer_args *ta) |
1665 | prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1289 | { |
1666 | { |
1290 | api_ready (coro_current); |
1667 | api_ready (aTHX_ coro_current); |
1291 | prepare_schedule (aTHX_ ta); |
1668 | prepare_schedule (aTHX_ ta); |
1292 | } |
1669 | } |
1293 | |
1670 | |
|
|
1671 | INLINE void |
|
|
1672 | prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
|
|
1673 | { |
|
|
1674 | SV *prev = SvRV (coro_current); |
|
|
1675 | |
|
|
1676 | if (coro_nready) |
|
|
1677 | { |
|
|
1678 | prepare_schedule (aTHX_ ta); |
|
|
1679 | api_ready (aTHX_ prev); |
|
|
1680 | } |
|
|
1681 | else |
|
|
1682 | prepare_nop (aTHX_ ta); |
|
|
1683 | } |
|
|
1684 | |
|
|
1685 | static void |
|
|
1686 | api_schedule (pTHX) |
|
|
1687 | { |
|
|
1688 | struct coro_transfer_args ta; |
|
|
1689 | |
|
|
1690 | prepare_schedule (aTHX_ &ta); |
|
|
1691 | TRANSFER (ta, 1); |
|
|
1692 | } |
|
|
1693 | |
1294 | static int |
1694 | static int |
1295 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
1695 | api_cede (pTHX) |
1296 | { |
1696 | { |
1297 | if (coro_nready) |
1697 | struct coro_transfer_args ta; |
1298 | { |
1698 | |
1299 | SV *prev = SvRV (coro_current); |
|
|
1300 | prepare_schedule (aTHX_ ta); |
1699 | prepare_cede (aTHX_ &ta); |
1301 | api_ready (prev); |
1700 | |
|
|
1701 | if (expect_true (ta.prev != ta.next)) |
|
|
1702 | { |
|
|
1703 | TRANSFER (ta, 1); |
1302 | return 1; |
1704 | return 1; |
1303 | } |
1705 | } |
1304 | else |
1706 | else |
1305 | return 0; |
1707 | return 0; |
1306 | } |
1708 | } |
1307 | |
1709 | |
1308 | static void |
|
|
1309 | api_schedule (void) |
|
|
1310 | { |
|
|
1311 | dTHX; |
|
|
1312 | struct transfer_args ta; |
|
|
1313 | |
|
|
1314 | prepare_schedule (aTHX_ &ta); |
|
|
1315 | TRANSFER (ta); |
|
|
1316 | } |
|
|
1317 | |
|
|
1318 | static int |
1710 | static int |
1319 | api_cede (void) |
1711 | api_cede_notself (pTHX) |
1320 | { |
1712 | { |
1321 | dTHX; |
1713 | if (coro_nready) |
|
|
1714 | { |
1322 | struct transfer_args ta; |
1715 | struct coro_transfer_args ta; |
1323 | |
1716 | |
1324 | prepare_cede (aTHX_ &ta); |
1717 | prepare_cede_notself (aTHX_ &ta); |
1325 | |
|
|
1326 | if (ta.prev != ta.next) |
|
|
1327 | { |
|
|
1328 | TRANSFER (ta); |
1718 | TRANSFER (ta, 1); |
1329 | return 1; |
1719 | return 1; |
1330 | } |
1720 | } |
1331 | else |
1721 | else |
1332 | return 0; |
1722 | return 0; |
1333 | } |
1723 | } |
1334 | |
1724 | |
1335 | static int |
1725 | static void |
1336 | api_cede_notself (void) |
|
|
1337 | { |
|
|
1338 | dTHX; |
|
|
1339 | struct transfer_args ta; |
|
|
1340 | |
|
|
1341 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1342 | { |
|
|
1343 | TRANSFER (ta); |
|
|
1344 | return 1; |
|
|
1345 | } |
|
|
1346 | else |
|
|
1347 | return 0; |
|
|
1348 | } |
|
|
1349 | |
|
|
1350 | static void |
|
|
1351 | api_trace (SV *coro_sv, int flags) |
1726 | api_trace (pTHX_ SV *coro_sv, int flags) |
1352 | { |
1727 | { |
1353 | dTHX; |
|
|
1354 | struct coro *coro = SvSTATE (coro_sv); |
1728 | struct coro *coro = SvSTATE (coro_sv); |
1355 | |
1729 | |
1356 | if (flags & CC_TRACE) |
1730 | if (flags & CC_TRACE) |
1357 | { |
1731 | { |
1358 | if (!coro->cctx) |
1732 | if (!coro->cctx) |
1359 | coro->cctx = cctx_new (); |
1733 | coro->cctx = cctx_new_run (); |
1360 | else if (!(coro->cctx->flags & CC_TRACE)) |
1734 | else if (!(coro->cctx->flags & CC_TRACE)) |
1361 | croak ("cannot enable tracing on coroutine with custom stack"); |
1735 | croak ("cannot enable tracing on coroutine with custom stack,"); |
1362 | |
1736 | |
1363 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1737 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1364 | } |
1738 | } |
1365 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1739 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1366 | { |
1740 | { |
1367 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1741 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1368 | |
1742 | |
1369 | if (coro->flags & CF_RUNNING) |
1743 | if (coro->flags & CF_RUNNING) |
1370 | PL_runops = RUNOPS_DEFAULT; |
1744 | PL_runops = RUNOPS_DEFAULT; |
1371 | else |
1745 | else |
1372 | coro->runops = RUNOPS_DEFAULT; |
1746 | coro->slot->runops = RUNOPS_DEFAULT; |
|
|
1747 | } |
|
|
1748 | } |
|
|
1749 | |
|
|
1750 | /*****************************************************************************/ |
|
|
1751 | /* rouse callback */ |
|
|
1752 | |
|
|
1753 | #define CORO_MAGIC_type_rouse PERL_MAGIC_ext |
|
|
1754 | |
|
|
1755 | static void |
|
|
1756 | coro_rouse_callback (pTHX_ CV *cv) |
|
|
1757 | { |
|
|
1758 | dXSARGS; |
|
|
1759 | SV *data = (SV *)GENSUB_ARG; |
|
|
1760 | |
|
|
1761 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
1373 | } |
1762 | { |
|
|
1763 | /* first call, set args */ |
|
|
1764 | int i; |
|
|
1765 | AV *av = newAV (); |
|
|
1766 | SV *coro = SvRV (data); |
|
|
1767 | |
|
|
1768 | SvRV_set (data, (SV *)av); |
|
|
1769 | api_ready (aTHX_ coro); |
|
|
1770 | SvREFCNT_dec (coro); |
|
|
1771 | |
|
|
1772 | /* better take a full copy of the arguments */ |
|
|
1773 | while (items--) |
|
|
1774 | av_store (av, items, newSVsv (ST (items))); |
|
|
1775 | } |
|
|
1776 | |
|
|
1777 | XSRETURN_EMPTY; |
1374 | } |
1778 | } |
|
|
1779 | |
|
|
1780 | static int |
|
|
1781 | slf_check_rouse_wait (pTHX_ struct CoroSLF *frame) |
|
|
1782 | { |
|
|
1783 | SV *data = (SV *)frame->data; |
|
|
1784 | |
|
|
1785 | if (CORO_THROW) |
|
|
1786 | return 0; |
|
|
1787 | |
|
|
1788 | if (SvTYPE (SvRV (data)) != SVt_PVAV) |
|
|
1789 | return 1; |
|
|
1790 | |
|
|
1791 | /* now push all results on the stack */ |
|
|
1792 | { |
|
|
1793 | dSP; |
|
|
1794 | AV *av = (AV *)SvRV (data); |
|
|
1795 | int i; |
|
|
1796 | |
|
|
1797 | EXTEND (SP, AvFILLp (av) + 1); |
|
|
1798 | for (i = 0; i <= AvFILLp (av); ++i) |
|
|
1799 | PUSHs (sv_2mortal (AvARRAY (av)[i])); |
|
|
1800 | |
|
|
1801 | /* we have stolen the elements, so ste length to zero and free */ |
|
|
1802 | AvFILLp (av) = -1; |
|
|
1803 | av_undef (av); |
|
|
1804 | |
|
|
1805 | PUTBACK; |
|
|
1806 | } |
|
|
1807 | |
|
|
1808 | return 0; |
|
|
1809 | } |
|
|
1810 | |
|
|
1811 | static void |
|
|
1812 | slf_init_rouse_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1813 | { |
|
|
1814 | SV *cb; |
|
|
1815 | |
|
|
1816 | if (items) |
|
|
1817 | cb = arg [0]; |
|
|
1818 | else |
|
|
1819 | { |
|
|
1820 | struct coro *coro = SvSTATE_current; |
|
|
1821 | |
|
|
1822 | if (!coro->rouse_cb) |
|
|
1823 | croak ("Coro::rouse_wait called without rouse callback, and no default rouse callback found either,"); |
|
|
1824 | |
|
|
1825 | cb = sv_2mortal (coro->rouse_cb); |
|
|
1826 | coro->rouse_cb = 0; |
|
|
1827 | } |
|
|
1828 | |
|
|
1829 | if (!SvROK (cb) |
|
|
1830 | || SvTYPE (SvRV (cb)) != SVt_PVCV |
|
|
1831 | || CvXSUB ((CV *)SvRV (cb)) != coro_rouse_callback) |
|
|
1832 | croak ("Coro::rouse_wait called with illegal callback argument,"); |
|
|
1833 | |
|
|
1834 | { |
|
|
1835 | CV *cv = (CV *)SvRV (cb); /* for GENSUB_ARG */ |
|
|
1836 | SV *data = (SV *)GENSUB_ARG; |
|
|
1837 | |
|
|
1838 | frame->data = (void *)data; |
|
|
1839 | frame->prepare = SvTYPE (SvRV (data)) == SVt_PVAV ? prepare_nop : prepare_schedule; |
|
|
1840 | frame->check = slf_check_rouse_wait; |
|
|
1841 | } |
|
|
1842 | } |
|
|
1843 | |
|
|
1844 | static SV * |
|
|
1845 | coro_new_rouse_cb (pTHX) |
|
|
1846 | { |
|
|
1847 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1848 | struct coro *coro = SvSTATE_hv (hv); |
|
|
1849 | SV *data = newRV_inc ((SV *)hv); |
|
|
1850 | SV *cb = gensub (aTHX_ coro_rouse_callback, (void *)data); |
|
|
1851 | |
|
|
1852 | sv_magicext (SvRV (cb), data, CORO_MAGIC_type_rouse, 0, 0, 0); |
|
|
1853 | SvREFCNT_dec (data); /* magicext increases the refcount */ |
|
|
1854 | |
|
|
1855 | SvREFCNT_dec (coro->rouse_cb); |
|
|
1856 | coro->rouse_cb = SvREFCNT_inc_NN (cb); |
|
|
1857 | |
|
|
1858 | return cb; |
|
|
1859 | } |
|
|
1860 | |
|
|
1861 | /*****************************************************************************/ |
|
|
1862 | /* schedule-like-function opcode (SLF) */ |
|
|
1863 | |
|
|
1864 | static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
|
|
1865 | static const CV *slf_cv; |
|
|
1866 | static SV **slf_argv; |
|
|
1867 | static int slf_argc, slf_arga; /* count, allocated */ |
|
|
1868 | static I32 slf_ax; /* top of stack, for restore */ |
|
|
1869 | |
|
|
1870 | /* this restores the stack in the case we patched the entersub, to */ |
|
|
1871 | /* recreate the stack frame as perl will on following calls */ |
|
|
1872 | /* since entersub cleared the stack */ |
|
|
1873 | static OP * |
|
|
1874 | pp_restore (pTHX) |
|
|
1875 | { |
|
|
1876 | int i; |
|
|
1877 | SV **SP = PL_stack_base + slf_ax; |
|
|
1878 | |
|
|
1879 | PUSHMARK (SP); |
|
|
1880 | |
|
|
1881 | EXTEND (SP, slf_argc + 1); |
|
|
1882 | |
|
|
1883 | for (i = 0; i < slf_argc; ++i) |
|
|
1884 | PUSHs (sv_2mortal (slf_argv [i])); |
|
|
1885 | |
|
|
1886 | PUSHs ((SV *)CvGV (slf_cv)); |
|
|
1887 | |
|
|
1888 | RETURNOP (slf_restore.op_first); |
|
|
1889 | } |
|
|
1890 | |
|
|
1891 | static void |
|
|
1892 | slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
|
|
1893 | { |
|
|
1894 | SV **arg = (SV **)slf_frame.data; |
|
|
1895 | |
|
|
1896 | prepare_transfer (aTHX_ ta, arg [0], arg [1]); |
|
|
1897 | } |
|
|
1898 | |
|
|
1899 | static void |
|
|
1900 | slf_init_transfer (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1901 | { |
|
|
1902 | if (items != 2) |
|
|
1903 | croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
|
|
1904 | |
|
|
1905 | frame->prepare = slf_prepare_transfer; |
|
|
1906 | frame->check = slf_check_nop; |
|
|
1907 | frame->data = (void *)arg; /* let's hope it will stay valid */ |
|
|
1908 | } |
|
|
1909 | |
|
|
1910 | static void |
|
|
1911 | slf_init_schedule (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1912 | { |
|
|
1913 | frame->prepare = prepare_schedule; |
|
|
1914 | frame->check = slf_check_nop; |
|
|
1915 | } |
|
|
1916 | |
|
|
1917 | static void |
|
|
1918 | slf_init_cede (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1919 | { |
|
|
1920 | frame->prepare = prepare_cede; |
|
|
1921 | frame->check = slf_check_nop; |
|
|
1922 | } |
|
|
1923 | |
|
|
1924 | static void |
|
|
1925 | slf_init_cede_notself (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
1926 | { |
|
|
1927 | frame->prepare = prepare_cede_notself; |
|
|
1928 | frame->check = slf_check_nop; |
|
|
1929 | } |
|
|
1930 | |
|
|
1931 | /* |
|
|
1932 | * these not obviously related functions are all rolled into one |
|
|
1933 | * function to increase chances that they all will call transfer with the same |
|
|
1934 | * stack offset |
|
|
1935 | * SLF stands for "schedule-like-function". |
|
|
1936 | */ |
|
|
1937 | static OP * |
|
|
1938 | pp_slf (pTHX) |
|
|
1939 | { |
|
|
1940 | I32 checkmark; /* mark SP to see how many elements check has pushed */ |
|
|
1941 | |
|
|
1942 | /* set up the slf frame, unless it has already been set-up */ |
|
|
1943 | /* the latter happens when a new coro has been started */ |
|
|
1944 | /* or when a new cctx was attached to an existing coroutine */ |
|
|
1945 | if (expect_true (!slf_frame.prepare)) |
|
|
1946 | { |
|
|
1947 | /* first iteration */ |
|
|
1948 | dSP; |
|
|
1949 | SV **arg = PL_stack_base + TOPMARK + 1; |
|
|
1950 | int items = SP - arg; /* args without function object */ |
|
|
1951 | SV *gv = *sp; |
|
|
1952 | |
|
|
1953 | /* do a quick consistency check on the "function" object, and if it isn't */ |
|
|
1954 | /* for us, divert to the real entersub */ |
|
|
1955 | if (SvTYPE (gv) != SVt_PVGV |
|
|
1956 | || !GvCV (gv) |
|
|
1957 | || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
|
|
1958 | return PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
1959 | |
|
|
1960 | if (!(PL_op->op_flags & OPf_STACKED)) |
|
|
1961 | { |
|
|
1962 | /* ampersand-form of call, use @_ instead of stack */ |
|
|
1963 | AV *av = GvAV (PL_defgv); |
|
|
1964 | arg = AvARRAY (av); |
|
|
1965 | items = AvFILLp (av) + 1; |
|
|
1966 | } |
|
|
1967 | |
|
|
1968 | /* now call the init function, which needs to set up slf_frame */ |
|
|
1969 | ((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) |
|
|
1970 | (aTHX_ &slf_frame, GvCV (gv), arg, items); |
|
|
1971 | |
|
|
1972 | /* pop args */ |
|
|
1973 | SP = PL_stack_base + POPMARK; |
|
|
1974 | |
|
|
1975 | PUTBACK; |
|
|
1976 | } |
|
|
1977 | |
|
|
1978 | /* now that we have a slf_frame, interpret it! */ |
|
|
1979 | /* we use a callback system not to make the code needlessly */ |
|
|
1980 | /* complicated, but so we can run multiple perl coros from one cctx */ |
|
|
1981 | |
|
|
1982 | do |
|
|
1983 | { |
|
|
1984 | struct coro_transfer_args ta; |
|
|
1985 | |
|
|
1986 | slf_frame.prepare (aTHX_ &ta); |
|
|
1987 | TRANSFER (ta, 0); |
|
|
1988 | |
|
|
1989 | checkmark = PL_stack_sp - PL_stack_base; |
|
|
1990 | } |
|
|
1991 | while (slf_frame.check (aTHX_ &slf_frame)); |
|
|
1992 | |
|
|
1993 | slf_frame.prepare = 0; /* invalidate the frame, we are done processing it */ |
|
|
1994 | |
|
|
1995 | /* exception handling */ |
|
|
1996 | if (expect_false (CORO_THROW)) |
|
|
1997 | { |
|
|
1998 | SV *exception = sv_2mortal (CORO_THROW); |
|
|
1999 | |
|
|
2000 | CORO_THROW = 0; |
|
|
2001 | sv_setsv (ERRSV, exception); |
|
|
2002 | croak (0); |
|
|
2003 | } |
|
|
2004 | |
|
|
2005 | /* return value handling - mostly like entersub */ |
|
|
2006 | /* make sure we put something on the stack in scalar context */ |
|
|
2007 | if (GIMME_V == G_SCALAR) |
|
|
2008 | { |
|
|
2009 | dSP; |
|
|
2010 | SV **bot = PL_stack_base + checkmark; |
|
|
2011 | |
|
|
2012 | if (sp == bot) /* too few, push undef */ |
|
|
2013 | bot [1] = &PL_sv_undef; |
|
|
2014 | else if (sp != bot + 1) /* too many, take last one */ |
|
|
2015 | bot [1] = *sp; |
|
|
2016 | |
|
|
2017 | SP = bot + 1; |
|
|
2018 | |
|
|
2019 | PUTBACK; |
|
|
2020 | } |
|
|
2021 | |
|
|
2022 | return NORMAL; |
|
|
2023 | } |
|
|
2024 | |
|
|
2025 | static void |
|
|
2026 | api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, I32 ax) |
|
|
2027 | { |
|
|
2028 | int i; |
|
|
2029 | SV **arg = PL_stack_base + ax; |
|
|
2030 | int items = PL_stack_sp - arg + 1; |
|
|
2031 | |
|
|
2032 | assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
|
|
2033 | |
|
|
2034 | if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
|
|
2035 | && PL_op->op_ppaddr != pp_slf) |
|
|
2036 | croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
|
|
2037 | |
|
|
2038 | CvFLAGS (cv) |= CVf_SLF; |
|
|
2039 | CvXSUBANY (cv).any_ptr = (void *)init_cb; |
|
|
2040 | slf_cv = cv; |
|
|
2041 | |
|
|
2042 | /* we patch the op, and then re-run the whole call */ |
|
|
2043 | /* we have to put the same argument on the stack for this to work */ |
|
|
2044 | /* and this will be done by pp_restore */ |
|
|
2045 | slf_restore.op_next = (OP *)&slf_restore; |
|
|
2046 | slf_restore.op_type = OP_CUSTOM; |
|
|
2047 | slf_restore.op_ppaddr = pp_restore; |
|
|
2048 | slf_restore.op_first = PL_op; |
|
|
2049 | |
|
|
2050 | slf_ax = ax - 1; /* undo the ax++ inside dAXMARK */ |
|
|
2051 | |
|
|
2052 | if (PL_op->op_flags & OPf_STACKED) |
|
|
2053 | { |
|
|
2054 | if (items > slf_arga) |
|
|
2055 | { |
|
|
2056 | slf_arga = items; |
|
|
2057 | free (slf_argv); |
|
|
2058 | slf_argv = malloc (slf_arga * sizeof (SV *)); |
|
|
2059 | } |
|
|
2060 | |
|
|
2061 | slf_argc = items; |
|
|
2062 | |
|
|
2063 | for (i = 0; i < items; ++i) |
|
|
2064 | slf_argv [i] = SvREFCNT_inc (arg [i]); |
|
|
2065 | } |
|
|
2066 | else |
|
|
2067 | slf_argc = 0; |
|
|
2068 | |
|
|
2069 | PL_op->op_ppaddr = pp_slf; |
|
|
2070 | PL_op->op_type = OP_CUSTOM; /* maybe we should leave it at entersub? */ |
|
|
2071 | |
|
|
2072 | PL_op = (OP *)&slf_restore; |
|
|
2073 | } |
|
|
2074 | |
|
|
2075 | /*****************************************************************************/ |
|
|
2076 | /* PerlIO::cede */ |
|
|
2077 | |
|
|
2078 | typedef struct |
|
|
2079 | { |
|
|
2080 | PerlIOBuf base; |
|
|
2081 | NV next, every; |
|
|
2082 | } PerlIOCede; |
|
|
2083 | |
|
|
2084 | static IV |
|
|
2085 | PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
|
|
2086 | { |
|
|
2087 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2088 | |
|
|
2089 | self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
|
|
2090 | self->next = nvtime () + self->every; |
|
|
2091 | |
|
|
2092 | return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
|
|
2093 | } |
|
|
2094 | |
|
|
2095 | static SV * |
|
|
2096 | PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
|
|
2097 | { |
|
|
2098 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2099 | |
|
|
2100 | return newSVnv (self->every); |
|
|
2101 | } |
|
|
2102 | |
|
|
2103 | static IV |
|
|
2104 | PerlIOCede_flush (pTHX_ PerlIO *f) |
|
|
2105 | { |
|
|
2106 | PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
|
|
2107 | double now = nvtime (); |
|
|
2108 | |
|
|
2109 | if (now >= self->next) |
|
|
2110 | { |
|
|
2111 | api_cede (aTHX); |
|
|
2112 | self->next = now + self->every; |
|
|
2113 | } |
|
|
2114 | |
|
|
2115 | return PerlIOBuf_flush (aTHX_ f); |
|
|
2116 | } |
|
|
2117 | |
|
|
2118 | static PerlIO_funcs PerlIO_cede = |
|
|
2119 | { |
|
|
2120 | sizeof(PerlIO_funcs), |
|
|
2121 | "cede", |
|
|
2122 | sizeof(PerlIOCede), |
|
|
2123 | PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
|
|
2124 | PerlIOCede_pushed, |
|
|
2125 | PerlIOBuf_popped, |
|
|
2126 | PerlIOBuf_open, |
|
|
2127 | PerlIOBase_binmode, |
|
|
2128 | PerlIOCede_getarg, |
|
|
2129 | PerlIOBase_fileno, |
|
|
2130 | PerlIOBuf_dup, |
|
|
2131 | PerlIOBuf_read, |
|
|
2132 | PerlIOBuf_unread, |
|
|
2133 | PerlIOBuf_write, |
|
|
2134 | PerlIOBuf_seek, |
|
|
2135 | PerlIOBuf_tell, |
|
|
2136 | PerlIOBuf_close, |
|
|
2137 | PerlIOCede_flush, |
|
|
2138 | PerlIOBuf_fill, |
|
|
2139 | PerlIOBase_eof, |
|
|
2140 | PerlIOBase_error, |
|
|
2141 | PerlIOBase_clearerr, |
|
|
2142 | PerlIOBase_setlinebuf, |
|
|
2143 | PerlIOBuf_get_base, |
|
|
2144 | PerlIOBuf_bufsiz, |
|
|
2145 | PerlIOBuf_get_ptr, |
|
|
2146 | PerlIOBuf_get_cnt, |
|
|
2147 | PerlIOBuf_set_ptrcnt, |
|
|
2148 | }; |
|
|
2149 | |
|
|
2150 | /*****************************************************************************/ |
|
|
2151 | /* Coro::Semaphore & Coro::Signal */ |
|
|
2152 | |
|
|
2153 | static SV * |
|
|
2154 | coro_waitarray_new (pTHX_ int count) |
|
|
2155 | { |
|
|
2156 | /* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
|
|
2157 | AV *av = newAV (); |
|
|
2158 | SV **ary; |
|
|
2159 | |
|
|
2160 | /* unfortunately, building manually saves memory */ |
|
|
2161 | Newx (ary, 2, SV *); |
|
|
2162 | AvALLOC (av) = ary; |
|
|
2163 | /*AvARRAY (av) = ary;*/ |
|
|
2164 | SvPVX ((SV *)av) = (char *)ary; /* 5.8.8 needs this syntax instead of AvARRAY = ary */ |
|
|
2165 | AvMAX (av) = 1; |
|
|
2166 | AvFILLp (av) = 0; |
|
|
2167 | ary [0] = newSViv (count); |
|
|
2168 | |
|
|
2169 | return newRV_noinc ((SV *)av); |
|
|
2170 | } |
|
|
2171 | |
|
|
2172 | /* semaphore */ |
|
|
2173 | |
|
|
2174 | static void |
|
|
2175 | coro_semaphore_adjust (pTHX_ AV *av, IV adjust) |
|
|
2176 | { |
|
|
2177 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2178 | IV count = SvIVX (count_sv); |
|
|
2179 | |
|
|
2180 | count += adjust; |
|
|
2181 | SvIVX (count_sv) = count; |
|
|
2182 | |
|
|
2183 | /* now wake up as many waiters as are expected to lock */ |
|
|
2184 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2185 | { |
|
|
2186 | SV *cb; |
|
|
2187 | |
|
|
2188 | /* swap first two elements so we can shift a waiter */ |
|
|
2189 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2190 | AvARRAY (av)[1] = count_sv; |
|
|
2191 | cb = av_shift (av); |
|
|
2192 | |
|
|
2193 | if (SvOBJECT (cb)) |
|
|
2194 | { |
|
|
2195 | api_ready (aTHX_ cb); |
|
|
2196 | --count; |
|
|
2197 | } |
|
|
2198 | else if (SvTYPE (cb) == SVt_PVCV) |
|
|
2199 | { |
|
|
2200 | dSP; |
|
|
2201 | PUSHMARK (SP); |
|
|
2202 | XPUSHs (sv_2mortal (newRV_inc ((SV *)av))); |
|
|
2203 | PUTBACK; |
|
|
2204 | call_sv (cb, G_VOID | G_DISCARD | G_EVAL | G_KEEPERR); |
|
|
2205 | } |
|
|
2206 | |
|
|
2207 | SvREFCNT_dec (cb); |
|
|
2208 | } |
|
|
2209 | } |
|
|
2210 | |
|
|
2211 | static void |
|
|
2212 | coro_semaphore_on_destroy (pTHX_ struct coro *coro) |
|
|
2213 | { |
|
|
2214 | /* call $sem->adjust (0) to possibly wake up some other waiters */ |
|
|
2215 | coro_semaphore_adjust (aTHX_ (AV *)coro->slf_frame.data, 0); |
|
|
2216 | } |
|
|
2217 | |
|
|
2218 | static int |
|
|
2219 | slf_check_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, int acquire) |
|
|
2220 | { |
|
|
2221 | AV *av = (AV *)frame->data; |
|
|
2222 | SV *count_sv = AvARRAY (av)[0]; |
|
|
2223 | |
|
|
2224 | /* if we are about to throw, don't actually acquire the lock, just throw */ |
|
|
2225 | if (CORO_THROW) |
|
|
2226 | return 0; |
|
|
2227 | else if (SvIVX (count_sv) > 0) |
|
|
2228 | { |
|
|
2229 | SvSTATE_current->on_destroy = 0; |
|
|
2230 | |
|
|
2231 | if (acquire) |
|
|
2232 | SvIVX (count_sv) = SvIVX (count_sv) - 1; |
|
|
2233 | else |
|
|
2234 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2235 | |
|
|
2236 | return 0; |
|
|
2237 | } |
|
|
2238 | else |
|
|
2239 | { |
|
|
2240 | int i; |
|
|
2241 | /* if we were woken up but can't down, we look through the whole */ |
|
|
2242 | /* waiters list and only add us if we aren't in there already */ |
|
|
2243 | /* this avoids some degenerate memory usage cases */ |
|
|
2244 | |
|
|
2245 | for (i = 1; i <= AvFILLp (av); ++i) |
|
|
2246 | if (AvARRAY (av)[i] == SvRV (coro_current)) |
|
|
2247 | return 1; |
|
|
2248 | |
|
|
2249 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2250 | return 1; |
|
|
2251 | } |
|
|
2252 | } |
|
|
2253 | |
|
|
2254 | static int |
|
|
2255 | slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
|
|
2256 | { |
|
|
2257 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 1); |
|
|
2258 | } |
|
|
2259 | |
|
|
2260 | static int |
|
|
2261 | slf_check_semaphore_wait (pTHX_ struct CoroSLF *frame) |
|
|
2262 | { |
|
|
2263 | return slf_check_semaphore_down_or_wait (aTHX_ frame, 0); |
|
|
2264 | } |
|
|
2265 | |
|
|
2266 | static void |
|
|
2267 | slf_init_semaphore_down_or_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2268 | { |
|
|
2269 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2270 | |
|
|
2271 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2272 | { |
|
|
2273 | frame->data = (void *)av; |
|
|
2274 | frame->prepare = prepare_nop; |
|
|
2275 | } |
|
|
2276 | else |
|
|
2277 | { |
|
|
2278 | av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
|
|
2279 | |
|
|
2280 | frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
|
|
2281 | frame->prepare = prepare_schedule; |
|
|
2282 | |
|
|
2283 | /* to avoid race conditions when a woken-up coro gets terminated */ |
|
|
2284 | /* we arrange for a temporary on_destroy that calls adjust (0) */ |
|
|
2285 | SvSTATE_current->on_destroy = coro_semaphore_on_destroy; |
|
|
2286 | } |
|
|
2287 | } |
|
|
2288 | |
|
|
2289 | static void |
|
|
2290 | slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2291 | { |
|
|
2292 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2293 | frame->check = slf_check_semaphore_down; |
|
|
2294 | } |
|
|
2295 | |
|
|
2296 | static void |
|
|
2297 | slf_init_semaphore_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2298 | { |
|
|
2299 | if (items >= 2) |
|
|
2300 | { |
|
|
2301 | /* callback form */ |
|
|
2302 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2303 | CV *cb_cv = coro_sv_2cv (arg [1]); |
|
|
2304 | |
|
|
2305 | av_push (av, (SV *)SvREFCNT_inc_NN (cb_cv)); |
|
|
2306 | |
|
|
2307 | if (SvIVX (AvARRAY (av)[0]) > 0) |
|
|
2308 | coro_semaphore_adjust (aTHX_ av, 0); |
|
|
2309 | |
|
|
2310 | frame->prepare = prepare_nop; |
|
|
2311 | frame->check = slf_check_nop; |
|
|
2312 | } |
|
|
2313 | else |
|
|
2314 | { |
|
|
2315 | slf_init_semaphore_down_or_wait (aTHX_ frame, cv, arg, items); |
|
|
2316 | frame->check = slf_check_semaphore_wait; |
|
|
2317 | } |
|
|
2318 | } |
|
|
2319 | |
|
|
2320 | /* signal */ |
|
|
2321 | |
|
|
2322 | static void |
|
|
2323 | coro_signal_wake (pTHX_ AV *av, int count) |
|
|
2324 | { |
|
|
2325 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2326 | |
|
|
2327 | /* now signal count waiters */ |
|
|
2328 | while (count > 0 && AvFILLp (av) > 0) |
|
|
2329 | { |
|
|
2330 | SV *cb; |
|
|
2331 | |
|
|
2332 | /* swap first two elements so we can shift a waiter */ |
|
|
2333 | cb = AvARRAY (av)[0]; |
|
|
2334 | AvARRAY (av)[0] = AvARRAY (av)[1]; |
|
|
2335 | AvARRAY (av)[1] = cb; |
|
|
2336 | |
|
|
2337 | cb = av_shift (av); |
|
|
2338 | |
|
|
2339 | api_ready (aTHX_ cb); |
|
|
2340 | sv_setiv (cb, 0); /* signal waiter */ |
|
|
2341 | SvREFCNT_dec (cb); |
|
|
2342 | |
|
|
2343 | --count; |
|
|
2344 | } |
|
|
2345 | } |
|
|
2346 | |
|
|
2347 | static int |
|
|
2348 | slf_check_signal_wait (pTHX_ struct CoroSLF *frame) |
|
|
2349 | { |
|
|
2350 | /* if we are about to throw, also stop waiting */ |
|
|
2351 | return SvROK ((SV *)frame->data) && !CORO_THROW; |
|
|
2352 | } |
|
|
2353 | |
|
|
2354 | static void |
|
|
2355 | slf_init_signal_wait (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2356 | { |
|
|
2357 | AV *av = (AV *)SvRV (arg [0]); |
|
|
2358 | |
|
|
2359 | if (SvIVX (AvARRAY (av)[0])) |
|
|
2360 | { |
|
|
2361 | SvIVX (AvARRAY (av)[0]) = 0; |
|
|
2362 | frame->prepare = prepare_nop; |
|
|
2363 | frame->check = slf_check_nop; |
|
|
2364 | } |
|
|
2365 | else |
|
|
2366 | { |
|
|
2367 | SV *waiter = newRV_inc (SvRV (coro_current)); /* owned by signal av */ |
|
|
2368 | |
|
|
2369 | av_push (av, waiter); |
|
|
2370 | |
|
|
2371 | frame->data = (void *)sv_2mortal (SvREFCNT_inc_NN (waiter)); /* owned by process */ |
|
|
2372 | frame->prepare = prepare_schedule; |
|
|
2373 | frame->check = slf_check_signal_wait; |
|
|
2374 | } |
|
|
2375 | } |
|
|
2376 | |
|
|
2377 | /*****************************************************************************/ |
|
|
2378 | /* Coro::AIO */ |
|
|
2379 | |
|
|
2380 | #define CORO_MAGIC_type_aio PERL_MAGIC_ext |
|
|
2381 | |
|
|
2382 | /* helper storage struct */ |
|
|
2383 | struct io_state |
|
|
2384 | { |
|
|
2385 | int errorno; |
|
|
2386 | I32 laststype; /* U16 in 5.10.0 */ |
|
|
2387 | int laststatval; |
|
|
2388 | Stat_t statcache; |
|
|
2389 | }; |
|
|
2390 | |
|
|
2391 | static void |
|
|
2392 | coro_aio_callback (pTHX_ CV *cv) |
|
|
2393 | { |
|
|
2394 | dXSARGS; |
|
|
2395 | AV *state = (AV *)GENSUB_ARG; |
|
|
2396 | SV *coro = av_pop (state); |
|
|
2397 | SV *data_sv = newSV (sizeof (struct io_state)); |
|
|
2398 | |
|
|
2399 | av_extend (state, items); |
|
|
2400 | |
|
|
2401 | sv_upgrade (data_sv, SVt_PV); |
|
|
2402 | SvCUR_set (data_sv, sizeof (struct io_state)); |
|
|
2403 | SvPOK_only (data_sv); |
|
|
2404 | |
|
|
2405 | { |
|
|
2406 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2407 | |
|
|
2408 | data->errorno = errno; |
|
|
2409 | data->laststype = PL_laststype; |
|
|
2410 | data->laststatval = PL_laststatval; |
|
|
2411 | data->statcache = PL_statcache; |
|
|
2412 | } |
|
|
2413 | |
|
|
2414 | /* now build the result vector out of all the parameters and the data_sv */ |
|
|
2415 | { |
|
|
2416 | int i; |
|
|
2417 | |
|
|
2418 | for (i = 0; i < items; ++i) |
|
|
2419 | av_push (state, SvREFCNT_inc_NN (ST (i))); |
|
|
2420 | } |
|
|
2421 | |
|
|
2422 | av_push (state, data_sv); |
|
|
2423 | |
|
|
2424 | api_ready (aTHX_ coro); |
|
|
2425 | SvREFCNT_dec (coro); |
|
|
2426 | SvREFCNT_dec ((AV *)state); |
|
|
2427 | } |
|
|
2428 | |
|
|
2429 | static int |
|
|
2430 | slf_check_aio_req (pTHX_ struct CoroSLF *frame) |
|
|
2431 | { |
|
|
2432 | AV *state = (AV *)frame->data; |
|
|
2433 | |
|
|
2434 | /* if we are about to throw, return early */ |
|
|
2435 | /* this does not cancel the aio request, but at least */ |
|
|
2436 | /* it quickly returns */ |
|
|
2437 | if (CORO_THROW) |
|
|
2438 | return 0; |
|
|
2439 | |
|
|
2440 | /* one element that is an RV? repeat! */ |
|
|
2441 | if (AvFILLp (state) == 0 && SvROK (AvARRAY (state)[0])) |
|
|
2442 | return 1; |
|
|
2443 | |
|
|
2444 | /* restore status */ |
|
|
2445 | { |
|
|
2446 | SV *data_sv = av_pop (state); |
|
|
2447 | struct io_state *data = (struct io_state *)SvPVX (data_sv); |
|
|
2448 | |
|
|
2449 | errno = data->errorno; |
|
|
2450 | PL_laststype = data->laststype; |
|
|
2451 | PL_laststatval = data->laststatval; |
|
|
2452 | PL_statcache = data->statcache; |
|
|
2453 | |
|
|
2454 | SvREFCNT_dec (data_sv); |
|
|
2455 | } |
|
|
2456 | |
|
|
2457 | /* push result values */ |
|
|
2458 | { |
|
|
2459 | dSP; |
|
|
2460 | int i; |
|
|
2461 | |
|
|
2462 | EXTEND (SP, AvFILLp (state) + 1); |
|
|
2463 | for (i = 0; i <= AvFILLp (state); ++i) |
|
|
2464 | PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (state)[i]))); |
|
|
2465 | |
|
|
2466 | PUTBACK; |
|
|
2467 | } |
|
|
2468 | |
|
|
2469 | return 0; |
|
|
2470 | } |
|
|
2471 | |
|
|
2472 | static void |
|
|
2473 | slf_init_aio_req (pTHX_ struct CoroSLF *frame, CV *cv, SV **arg, int items) |
|
|
2474 | { |
|
|
2475 | AV *state = (AV *)sv_2mortal ((SV *)newAV ()); |
|
|
2476 | SV *coro_hv = SvRV (coro_current); |
|
|
2477 | struct coro *coro = SvSTATE_hv (coro_hv); |
|
|
2478 | |
|
|
2479 | /* put our coroutine id on the state arg */ |
|
|
2480 | av_push (state, SvREFCNT_inc_NN (coro_hv)); |
|
|
2481 | |
|
|
2482 | /* first see whether we have a non-zero priority and set it as AIO prio */ |
|
|
2483 | if (coro->prio) |
|
|
2484 | { |
|
|
2485 | dSP; |
|
|
2486 | |
|
|
2487 | static SV *prio_cv; |
|
|
2488 | static SV *prio_sv; |
|
|
2489 | |
|
|
2490 | if (expect_false (!prio_cv)) |
|
|
2491 | { |
|
|
2492 | prio_cv = (SV *)get_cv ("IO::AIO::aioreq_pri", 0); |
|
|
2493 | prio_sv = newSViv (0); |
|
|
2494 | } |
|
|
2495 | |
|
|
2496 | PUSHMARK (SP); |
|
|
2497 | sv_setiv (prio_sv, coro->prio); |
|
|
2498 | XPUSHs (prio_sv); |
|
|
2499 | |
|
|
2500 | PUTBACK; |
|
|
2501 | call_sv (prio_cv, G_VOID | G_DISCARD); |
|
|
2502 | } |
|
|
2503 | |
|
|
2504 | /* now call the original request */ |
|
|
2505 | { |
|
|
2506 | dSP; |
|
|
2507 | CV *req = (CV *)CORO_MAGIC_NN ((SV *)cv, CORO_MAGIC_type_aio)->mg_obj; |
|
|
2508 | int i; |
|
|
2509 | |
|
|
2510 | PUSHMARK (SP); |
|
|
2511 | |
|
|
2512 | /* first push all args to the stack */ |
|
|
2513 | EXTEND (SP, items + 1); |
|
|
2514 | |
|
|
2515 | for (i = 0; i < items; ++i) |
|
|
2516 | PUSHs (arg [i]); |
|
|
2517 | |
|
|
2518 | /* now push the callback closure */ |
|
|
2519 | PUSHs (sv_2mortal (gensub (aTHX_ coro_aio_callback, (void *)SvREFCNT_inc_NN ((SV *)state)))); |
|
|
2520 | |
|
|
2521 | /* now call the AIO function - we assume our request is uncancelable */ |
|
|
2522 | PUTBACK; |
|
|
2523 | call_sv ((SV *)req, G_VOID | G_DISCARD); |
|
|
2524 | } |
|
|
2525 | |
|
|
2526 | /* now that the requets is going, we loop toll we have a result */ |
|
|
2527 | frame->data = (void *)state; |
|
|
2528 | frame->prepare = prepare_schedule; |
|
|
2529 | frame->check = slf_check_aio_req; |
|
|
2530 | } |
|
|
2531 | |
|
|
2532 | static void |
|
|
2533 | coro_aio_req_xs (pTHX_ CV *cv) |
|
|
2534 | { |
|
|
2535 | dXSARGS; |
|
|
2536 | |
|
|
2537 | CORO_EXECUTE_SLF_XS (slf_init_aio_req); |
|
|
2538 | |
|
|
2539 | XSRETURN_EMPTY; |
|
|
2540 | } |
|
|
2541 | |
|
|
2542 | /*****************************************************************************/ |
1375 | |
2543 | |
1376 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2544 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
1377 | |
2545 | |
1378 | PROTOTYPES: DISABLE |
2546 | PROTOTYPES: DISABLE |
1379 | |
2547 | |
1380 | BOOT: |
2548 | BOOT: |
1381 | { |
2549 | { |
1382 | #ifdef USE_ITHREADS |
2550 | #ifdef USE_ITHREADS |
1383 | MUTEX_INIT (&coro_mutex); |
2551 | # if CORO_PTHREAD |
|
|
2552 | coro_thx = PERL_GET_CONTEXT; |
|
|
2553 | # endif |
1384 | #endif |
2554 | #endif |
1385 | BOOT_PAGESIZE; |
2555 | BOOT_PAGESIZE; |
1386 | |
2556 | |
1387 | irsgv = gv_fetchpv ("/", 1, SVt_PV); |
2557 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
2558 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
2559 | |
|
|
2560 | orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
|
|
2561 | orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
|
|
2562 | orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
|
|
2563 | |
|
|
2564 | hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
|
|
2565 | rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
|
|
2566 | rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
1388 | |
2567 | |
1389 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
2568 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1390 | |
2569 | |
1391 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
2570 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1392 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
2571 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
… | |
… | |
1397 | main_top_env = PL_top_env; |
2576 | main_top_env = PL_top_env; |
1398 | |
2577 | |
1399 | while (main_top_env->je_prev) |
2578 | while (main_top_env->je_prev) |
1400 | main_top_env = main_top_env->je_prev; |
2579 | main_top_env = main_top_env->je_prev; |
1401 | |
2580 | |
|
|
2581 | { |
|
|
2582 | SV *slf = sv_2mortal (newSViv (PTR2IV (pp_slf))); |
|
|
2583 | |
|
|
2584 | if (!PL_custom_op_names) PL_custom_op_names = newHV (); |
|
|
2585 | hv_store_ent (PL_custom_op_names, slf, |
|
|
2586 | newSVpv ("coro_slf", 0), 0); |
|
|
2587 | |
|
|
2588 | if (!PL_custom_op_descs) PL_custom_op_descs = newHV (); |
|
|
2589 | hv_store_ent (PL_custom_op_descs, slf, |
|
|
2590 | newSVpv ("coro schedule like function", 0), 0); |
|
|
2591 | } |
|
|
2592 | |
1402 | coroapi.ver = CORO_API_VERSION; |
2593 | coroapi.ver = CORO_API_VERSION; |
|
|
2594 | coroapi.rev = CORO_API_REVISION; |
|
|
2595 | |
1403 | coroapi.transfer = api_transfer; |
2596 | coroapi.transfer = api_transfer; |
|
|
2597 | |
|
|
2598 | coroapi.sv_state = SvSTATE_; |
|
|
2599 | coroapi.execute_slf = api_execute_slf; |
|
|
2600 | coroapi.prepare_nop = prepare_nop; |
|
|
2601 | coroapi.prepare_schedule = prepare_schedule; |
|
|
2602 | coroapi.prepare_cede = prepare_cede; |
|
|
2603 | coroapi.prepare_cede_notself = prepare_cede_notself; |
|
|
2604 | |
|
|
2605 | { |
|
|
2606 | SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
|
|
2607 | |
|
|
2608 | if (!svp) croak ("Time::HiRes is required"); |
|
|
2609 | if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
|
|
2610 | |
|
|
2611 | nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
|
|
2612 | } |
1404 | |
2613 | |
1405 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2614 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1406 | } |
2615 | } |
1407 | |
2616 | |
1408 | SV * |
2617 | SV * |
1409 | new (char *klass, ...) |
2618 | new (char *klass, ...) |
1410 | CODE: |
2619 | CODE: |
1411 | { |
2620 | { |
1412 | struct coro *coro; |
2621 | struct coro *coro; |
|
|
2622 | MAGIC *mg; |
1413 | HV *hv; |
2623 | HV *hv; |
|
|
2624 | CV *cb; |
1414 | int i; |
2625 | int i; |
|
|
2626 | |
|
|
2627 | if (items > 1) |
|
|
2628 | { |
|
|
2629 | cb = coro_sv_2cv (ST (1)); |
|
|
2630 | |
|
|
2631 | if (CvISXSUB (cb)) |
|
|
2632 | croak ("Coro::State doesn't support XS functions as coroutine start, caught"); |
|
|
2633 | |
|
|
2634 | if (!CvROOT (cb)) |
|
|
2635 | croak ("Coro::State doesn't support autoloaded or undefined functions as coroutine start, caught"); |
|
|
2636 | } |
1415 | |
2637 | |
1416 | Newz (0, coro, 1, struct coro); |
2638 | Newz (0, coro, 1, struct coro); |
1417 | coro->args = newAV (); |
2639 | coro->args = newAV (); |
1418 | coro->flags = CF_NEW; |
2640 | coro->flags = CF_NEW; |
1419 | |
2641 | |
1420 | if (coro_first) coro_first->prev = coro; |
2642 | if (coro_first) coro_first->prev = coro; |
1421 | coro->next = coro_first; |
2643 | coro->next = coro_first; |
1422 | coro_first = coro; |
2644 | coro_first = coro; |
1423 | |
2645 | |
1424 | coro->hv = hv = newHV (); |
2646 | coro->hv = hv = newHV (); |
1425 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
2647 | mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
|
|
2648 | mg->mg_flags |= MGf_DUP; |
1426 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2649 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1427 | |
2650 | |
|
|
2651 | if (items > 1) |
|
|
2652 | { |
|
|
2653 | coro->startcv = SvREFCNT_inc_NN (cb); |
|
|
2654 | |
|
|
2655 | av_extend (coro->args, items - 1); |
1428 | for (i = 1; i < items; i++) |
2656 | for (i = 2; i < items; i++) |
1429 | av_push (coro->args, newSVsv (ST (i))); |
2657 | av_push (coro->args, newSVsv (ST (i))); |
|
|
2658 | } |
1430 | } |
2659 | } |
1431 | OUTPUT: |
2660 | OUTPUT: |
1432 | RETVAL |
2661 | RETVAL |
1433 | |
2662 | |
1434 | # these not obviously related functions are all rolled into the same xs |
|
|
1435 | # function to increase chances that they all will call transfer with the same |
|
|
1436 | # stack offset |
|
|
1437 | void |
2663 | void |
1438 | _set_stacklevel (...) |
2664 | transfer (...) |
1439 | ALIAS: |
2665 | PROTOTYPE: $$ |
1440 | Coro::State::transfer = 1 |
2666 | CODE: |
1441 | Coro::schedule = 2 |
2667 | CORO_EXECUTE_SLF_XS (slf_init_transfer); |
1442 | Coro::cede = 3 |
|
|
1443 | Coro::cede_notself = 4 |
|
|
1444 | CODE: |
|
|
1445 | { |
|
|
1446 | struct transfer_args ta; |
|
|
1447 | |
|
|
1448 | switch (ix) |
|
|
1449 | { |
|
|
1450 | case 0: |
|
|
1451 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1452 | ta.next = 0; |
|
|
1453 | break; |
|
|
1454 | |
|
|
1455 | case 1: |
|
|
1456 | if (items != 2) |
|
|
1457 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1458 | |
|
|
1459 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1460 | break; |
|
|
1461 | |
|
|
1462 | case 2: |
|
|
1463 | prepare_schedule (aTHX_ &ta); |
|
|
1464 | break; |
|
|
1465 | |
|
|
1466 | case 3: |
|
|
1467 | prepare_cede (aTHX_ &ta); |
|
|
1468 | break; |
|
|
1469 | |
|
|
1470 | case 4: |
|
|
1471 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1472 | XSRETURN_EMPTY; |
|
|
1473 | |
|
|
1474 | break; |
|
|
1475 | } |
|
|
1476 | |
|
|
1477 | BARRIER; |
|
|
1478 | TRANSFER (ta); |
|
|
1479 | |
|
|
1480 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
|
|
1481 | XSRETURN_YES; |
|
|
1482 | } |
|
|
1483 | |
2668 | |
1484 | bool |
2669 | bool |
1485 | _destroy (SV *coro_sv) |
2670 | _destroy (SV *coro_sv) |
1486 | CODE: |
2671 | CODE: |
1487 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2672 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1488 | OUTPUT: |
2673 | OUTPUT: |
1489 | RETVAL |
2674 | RETVAL |
1490 | |
2675 | |
1491 | void |
2676 | void |
1492 | _exit (code) |
2677 | _exit (int code) |
1493 | int code |
|
|
1494 | PROTOTYPE: $ |
2678 | PROTOTYPE: $ |
1495 | CODE: |
2679 | CODE: |
1496 | _exit (code); |
2680 | _exit (code); |
1497 | |
2681 | |
1498 | int |
2682 | int |
1499 | cctx_stacksize (int new_stacksize = 0) |
2683 | cctx_stacksize (int new_stacksize = 0) |
|
|
2684 | PROTOTYPE: ;$ |
1500 | CODE: |
2685 | CODE: |
1501 | RETVAL = coro_stacksize; |
2686 | RETVAL = cctx_stacksize; |
1502 | if (new_stacksize) |
2687 | if (new_stacksize) |
|
|
2688 | { |
1503 | coro_stacksize = new_stacksize; |
2689 | cctx_stacksize = new_stacksize; |
|
|
2690 | ++cctx_gen; |
|
|
2691 | } |
1504 | OUTPUT: |
2692 | OUTPUT: |
1505 | RETVAL |
2693 | RETVAL |
1506 | |
2694 | |
1507 | int |
2695 | int |
|
|
2696 | cctx_max_idle (int max_idle = 0) |
|
|
2697 | PROTOTYPE: ;$ |
|
|
2698 | CODE: |
|
|
2699 | RETVAL = cctx_max_idle; |
|
|
2700 | if (max_idle > 1) |
|
|
2701 | cctx_max_idle = max_idle; |
|
|
2702 | OUTPUT: |
|
|
2703 | RETVAL |
|
|
2704 | |
|
|
2705 | int |
1508 | cctx_count () |
2706 | cctx_count () |
|
|
2707 | PROTOTYPE: |
1509 | CODE: |
2708 | CODE: |
1510 | RETVAL = cctx_count; |
2709 | RETVAL = cctx_count; |
1511 | OUTPUT: |
2710 | OUTPUT: |
1512 | RETVAL |
2711 | RETVAL |
1513 | |
2712 | |
1514 | int |
2713 | int |
1515 | cctx_idle () |
2714 | cctx_idle () |
|
|
2715 | PROTOTYPE: |
1516 | CODE: |
2716 | CODE: |
1517 | RETVAL = cctx_idle; |
2717 | RETVAL = cctx_idle; |
1518 | OUTPUT: |
2718 | OUTPUT: |
1519 | RETVAL |
2719 | RETVAL |
1520 | |
2720 | |
1521 | void |
2721 | void |
1522 | list () |
2722 | list () |
|
|
2723 | PROTOTYPE: |
1523 | PPCODE: |
2724 | PPCODE: |
1524 | { |
2725 | { |
1525 | struct coro *coro; |
2726 | struct coro *coro; |
1526 | for (coro = coro_first; coro; coro = coro->next) |
2727 | for (coro = coro_first; coro; coro = coro->next) |
1527 | if (coro->hv) |
2728 | if (coro->hv) |
… | |
… | |
1532 | call (Coro::State coro, SV *coderef) |
2733 | call (Coro::State coro, SV *coderef) |
1533 | ALIAS: |
2734 | ALIAS: |
1534 | eval = 1 |
2735 | eval = 1 |
1535 | CODE: |
2736 | CODE: |
1536 | { |
2737 | { |
1537 | if (coro->mainstack) |
2738 | if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
1538 | { |
2739 | { |
1539 | struct coro temp; |
2740 | struct coro temp; |
1540 | Zero (&temp, 1, struct coro); |
|
|
1541 | |
2741 | |
1542 | if (!(coro->flags & CF_RUNNING)) |
2742 | if (!(coro->flags & CF_RUNNING)) |
1543 | { |
2743 | { |
|
|
2744 | PUTBACK; |
1544 | save_perl (aTHX_ &temp); |
2745 | save_perl (aTHX_ &temp); |
1545 | load_perl (aTHX_ coro); |
2746 | load_perl (aTHX_ coro); |
1546 | } |
2747 | } |
1547 | |
2748 | |
1548 | { |
2749 | { |
1549 | dSP; |
2750 | dSP; |
1550 | ENTER; |
2751 | ENTER; |
1551 | SAVETMPS; |
2752 | SAVETMPS; |
|
|
2753 | PUTBACK; |
|
|
2754 | PUSHSTACK; |
1552 | PUSHMARK (SP); |
2755 | PUSHMARK (SP); |
1553 | PUTBACK; |
2756 | |
1554 | if (ix) |
2757 | if (ix) |
1555 | eval_sv (coderef, 0); |
2758 | eval_sv (coderef, 0); |
1556 | else |
2759 | else |
1557 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2760 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
2761 | |
|
|
2762 | POPSTACK; |
1558 | SPAGAIN; |
2763 | SPAGAIN; |
1559 | FREETMPS; |
2764 | FREETMPS; |
1560 | LEAVE; |
2765 | LEAVE; |
1561 | PUTBACK; |
2766 | PUTBACK; |
1562 | } |
2767 | } |
1563 | |
2768 | |
1564 | if (!(coro->flags & CF_RUNNING)) |
2769 | if (!(coro->flags & CF_RUNNING)) |
1565 | { |
2770 | { |
1566 | save_perl (aTHX_ coro); |
2771 | save_perl (aTHX_ coro); |
1567 | load_perl (aTHX_ &temp); |
2772 | load_perl (aTHX_ &temp); |
|
|
2773 | SPAGAIN; |
1568 | } |
2774 | } |
1569 | } |
2775 | } |
1570 | } |
2776 | } |
1571 | |
2777 | |
1572 | SV * |
2778 | SV * |
… | |
… | |
1581 | RETVAL = boolSV (coro->flags & ix); |
2787 | RETVAL = boolSV (coro->flags & ix); |
1582 | OUTPUT: |
2788 | OUTPUT: |
1583 | RETVAL |
2789 | RETVAL |
1584 | |
2790 | |
1585 | void |
2791 | void |
|
|
2792 | throw (Coro::State self, SV *throw = &PL_sv_undef) |
|
|
2793 | PROTOTYPE: $;$ |
|
|
2794 | CODE: |
|
|
2795 | { |
|
|
2796 | struct coro *current = SvSTATE_current; |
|
|
2797 | SV **throwp = self == current ? &CORO_THROW : &self->except; |
|
|
2798 | SvREFCNT_dec (*throwp); |
|
|
2799 | *throwp = SvOK (throw) ? newSVsv (throw) : 0; |
|
|
2800 | } |
|
|
2801 | |
|
|
2802 | void |
1586 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2803 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
2804 | PROTOTYPE: $;$ |
|
|
2805 | C_ARGS: aTHX_ coro, flags |
1587 | |
2806 | |
1588 | SV * |
2807 | SV * |
1589 | has_stack (Coro::State coro) |
2808 | has_cctx (Coro::State coro) |
1590 | PROTOTYPE: $ |
2809 | PROTOTYPE: $ |
1591 | CODE: |
2810 | CODE: |
1592 | RETVAL = boolSV (!!coro->cctx); |
2811 | RETVAL = boolSV (!!coro->cctx); |
1593 | OUTPUT: |
2812 | OUTPUT: |
1594 | RETVAL |
2813 | RETVAL |
… | |
… | |
1599 | CODE: |
2818 | CODE: |
1600 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
2819 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
1601 | OUTPUT: |
2820 | OUTPUT: |
1602 | RETVAL |
2821 | RETVAL |
1603 | |
2822 | |
1604 | IV |
2823 | UV |
1605 | rss (Coro::State coro) |
2824 | rss (Coro::State coro) |
1606 | PROTOTYPE: $ |
2825 | PROTOTYPE: $ |
1607 | ALIAS: |
2826 | ALIAS: |
1608 | usecount = 1 |
2827 | usecount = 1 |
1609 | CODE: |
2828 | CODE: |
… | |
… | |
1613 | case 1: RETVAL = coro->usecount; break; |
2832 | case 1: RETVAL = coro->usecount; break; |
1614 | } |
2833 | } |
1615 | OUTPUT: |
2834 | OUTPUT: |
1616 | RETVAL |
2835 | RETVAL |
1617 | |
2836 | |
|
|
2837 | void |
|
|
2838 | force_cctx () |
|
|
2839 | PROTOTYPE: |
|
|
2840 | CODE: |
|
|
2841 | SvSTATE_current->cctx->idle_sp = 0; |
|
|
2842 | |
|
|
2843 | void |
|
|
2844 | swap_defsv (Coro::State self) |
|
|
2845 | PROTOTYPE: $ |
|
|
2846 | ALIAS: |
|
|
2847 | swap_defav = 1 |
|
|
2848 | CODE: |
|
|
2849 | if (!self->slot) |
|
|
2850 | croak ("cannot swap state with coroutine that has no saved state,"); |
|
|
2851 | else |
|
|
2852 | { |
|
|
2853 | SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
|
|
2854 | SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
|
|
2855 | |
|
|
2856 | SV *tmp = *src; *src = *dst; *dst = tmp; |
|
|
2857 | } |
|
|
2858 | |
1618 | |
2859 | |
1619 | MODULE = Coro::State PACKAGE = Coro |
2860 | MODULE = Coro::State PACKAGE = Coro |
1620 | |
2861 | |
1621 | BOOT: |
2862 | BOOT: |
1622 | { |
2863 | { |
1623 | int i; |
2864 | int i; |
1624 | |
2865 | |
1625 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1626 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1627 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
2866 | av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
|
|
2867 | sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
|
|
2868 | sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
1628 | |
2869 | |
1629 | coro_current = get_sv ("Coro::current", FALSE); |
2870 | coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
1630 | SvREADONLY_on (coro_current); |
2871 | SvREADONLY_on (coro_current); |
1631 | |
2872 | |
1632 | coro_stash = gv_stashpv ("Coro", TRUE); |
2873 | coro_stash = gv_stashpv ("Coro", TRUE); |
1633 | |
2874 | |
1634 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2875 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1635 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2876 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1636 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
2877 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1637 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
2878 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
… | |
… | |
1640 | |
2881 | |
1641 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2882 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1642 | coro_ready[i] = newAV (); |
2883 | coro_ready[i] = newAV (); |
1643 | |
2884 | |
1644 | { |
2885 | { |
1645 | SV *sv = perl_get_sv("Coro::API", 1); |
2886 | SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
1646 | |
2887 | |
1647 | coroapi.schedule = api_schedule; |
2888 | coroapi.schedule = api_schedule; |
1648 | coroapi.cede = api_cede; |
2889 | coroapi.cede = api_cede; |
1649 | coroapi.cede_notself = api_cede_notself; |
2890 | coroapi.cede_notself = api_cede_notself; |
1650 | coroapi.ready = api_ready; |
2891 | coroapi.ready = api_ready; |
1651 | coroapi.is_ready = api_is_ready; |
2892 | coroapi.is_ready = api_is_ready; |
1652 | coroapi.nready = &coro_nready; |
2893 | coroapi.nready = coro_nready; |
1653 | coroapi.current = coro_current; |
2894 | coroapi.current = coro_current; |
1654 | |
2895 | |
1655 | GCoroAPI = &coroapi; |
2896 | /*GCoroAPI = &coroapi;*/ |
1656 | sv_setiv (sv, (IV)&coroapi); |
2897 | sv_setiv (sv, (IV)&coroapi); |
1657 | SvREADONLY_on (sv); |
2898 | SvREADONLY_on (sv); |
1658 | } |
2899 | } |
1659 | } |
2900 | } |
|
|
2901 | |
|
|
2902 | void |
|
|
2903 | schedule (...) |
|
|
2904 | CODE: |
|
|
2905 | CORO_EXECUTE_SLF_XS (slf_init_schedule); |
|
|
2906 | |
|
|
2907 | void |
|
|
2908 | cede (...) |
|
|
2909 | CODE: |
|
|
2910 | CORO_EXECUTE_SLF_XS (slf_init_cede); |
|
|
2911 | |
|
|
2912 | void |
|
|
2913 | cede_notself (...) |
|
|
2914 | CODE: |
|
|
2915 | CORO_EXECUTE_SLF_XS (slf_init_cede_notself); |
1660 | |
2916 | |
1661 | void |
2917 | void |
1662 | _set_current (SV *current) |
2918 | _set_current (SV *current) |
1663 | PROTOTYPE: $ |
2919 | PROTOTYPE: $ |
1664 | CODE: |
2920 | CODE: |
1665 | SvREFCNT_dec (SvRV (coro_current)); |
2921 | SvREFCNT_dec (SvRV (coro_current)); |
1666 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
2922 | SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
|
|
2923 | |
|
|
2924 | void |
|
|
2925 | _set_readyhook (SV *hook) |
|
|
2926 | PROTOTYPE: $ |
|
|
2927 | CODE: |
|
|
2928 | SvREFCNT_dec (coro_readyhook); |
|
|
2929 | coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
1667 | |
2930 | |
1668 | int |
2931 | int |
1669 | prio (Coro::State coro, int newprio = 0) |
2932 | prio (Coro::State coro, int newprio = 0) |
|
|
2933 | PROTOTYPE: $;$ |
1670 | ALIAS: |
2934 | ALIAS: |
1671 | nice = 1 |
2935 | nice = 1 |
1672 | CODE: |
2936 | CODE: |
1673 | { |
2937 | { |
1674 | RETVAL = coro->prio; |
2938 | RETVAL = coro->prio; |
… | |
… | |
1689 | |
2953 | |
1690 | SV * |
2954 | SV * |
1691 | ready (SV *self) |
2955 | ready (SV *self) |
1692 | PROTOTYPE: $ |
2956 | PROTOTYPE: $ |
1693 | CODE: |
2957 | CODE: |
1694 | RETVAL = boolSV (api_ready (self)); |
2958 | RETVAL = boolSV (api_ready (aTHX_ self)); |
1695 | OUTPUT: |
2959 | OUTPUT: |
1696 | RETVAL |
2960 | RETVAL |
1697 | |
2961 | |
1698 | int |
2962 | int |
1699 | nready (...) |
2963 | nready (...) |
… | |
… | |
1706 | # for async_pool speedup |
2970 | # for async_pool speedup |
1707 | void |
2971 | void |
1708 | _pool_1 (SV *cb) |
2972 | _pool_1 (SV *cb) |
1709 | CODE: |
2973 | CODE: |
1710 | { |
2974 | { |
1711 | int i, len; |
|
|
1712 | HV *hv = (HV *)SvRV (coro_current); |
2975 | HV *hv = (HV *)SvRV (coro_current); |
|
|
2976 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
1713 | AV *defav = GvAV (PL_defgv); |
2977 | AV *defav = GvAV (PL_defgv); |
1714 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2978 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
1715 | AV *invoke_av; |
2979 | AV *invoke_av; |
|
|
2980 | int i, len; |
1716 | |
2981 | |
1717 | if (!invoke) |
2982 | if (!invoke) |
|
|
2983 | { |
|
|
2984 | SV *old = PL_diehook; |
|
|
2985 | PL_diehook = 0; |
|
|
2986 | SvREFCNT_dec (old); |
1718 | croak ("\3terminate\2\n"); |
2987 | croak ("\3async_pool terminate\2\n"); |
|
|
2988 | } |
|
|
2989 | |
|
|
2990 | SvREFCNT_dec (coro->saved_deffh); |
|
|
2991 | coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
1719 | |
2992 | |
1720 | hv_store (hv, "desc", sizeof ("desc") - 1, |
2993 | hv_store (hv, "desc", sizeof ("desc") - 1, |
1721 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
2994 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
1722 | |
2995 | |
1723 | invoke_av = (AV *)SvRV (invoke); |
2996 | invoke_av = (AV *)SvRV (invoke); |
… | |
… | |
1727 | |
3000 | |
1728 | if (len > 0) |
3001 | if (len > 0) |
1729 | { |
3002 | { |
1730 | av_fill (defav, len - 1); |
3003 | av_fill (defav, len - 1); |
1731 | for (i = 0; i < len; ++i) |
3004 | for (i = 0; i < len; ++i) |
1732 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
3005 | av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
1733 | } |
3006 | } |
1734 | |
|
|
1735 | SvREFCNT_dec (invoke); |
|
|
1736 | } |
3007 | } |
1737 | |
3008 | |
1738 | void |
3009 | void |
1739 | _pool_2 (SV *cb) |
3010 | _pool_2 (SV *cb) |
1740 | CODE: |
3011 | CODE: |
1741 | { |
3012 | { |
1742 | struct coro *coro = SvSTATE (coro_current); |
3013 | HV *hv = (HV *)SvRV (coro_current); |
|
|
3014 | struct coro *coro = SvSTATE_hv ((SV *)hv); |
1743 | |
3015 | |
1744 | sv_setsv (cb, &PL_sv_undef); |
3016 | sv_setsv (cb, &PL_sv_undef); |
1745 | |
3017 | |
|
|
3018 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
3019 | coro->saved_deffh = 0; |
|
|
3020 | |
1746 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
3021 | if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
1747 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
3022 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
3023 | { |
|
|
3024 | SV *old = PL_diehook; |
|
|
3025 | PL_diehook = 0; |
|
|
3026 | SvREFCNT_dec (old); |
1748 | croak ("\3terminate\2\n"); |
3027 | croak ("\3async_pool terminate\2\n"); |
|
|
3028 | } |
1749 | |
3029 | |
1750 | av_clear (GvAV (PL_defgv)); |
3030 | av_clear (GvAV (PL_defgv)); |
1751 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
3031 | hv_store (hv, "desc", sizeof ("desc") - 1, |
1752 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
3032 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
1753 | |
3033 | |
1754 | coro->prio = 0; |
3034 | coro->prio = 0; |
1755 | |
3035 | |
1756 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
3036 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
1757 | api_trace (coro_current, 0); |
3037 | api_trace (aTHX_ coro_current, 0); |
1758 | |
3038 | |
1759 | av_push (av_async_pool, newSVsv (coro_current)); |
3039 | av_push (av_async_pool, newSVsv (coro_current)); |
1760 | } |
3040 | } |
1761 | |
3041 | |
1762 | |
|
|
1763 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
1764 | |
|
|
1765 | SV * |
3042 | SV * |
1766 | _get_state () |
3043 | rouse_cb () |
|
|
3044 | PROTOTYPE: |
1767 | CODE: |
3045 | CODE: |
1768 | { |
3046 | RETVAL = coro_new_rouse_cb (aTHX); |
1769 | struct io_state *data; |
|
|
1770 | |
|
|
1771 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1772 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1773 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1774 | SvPOK_only (RETVAL); |
|
|
1775 | |
|
|
1776 | data->errorno = errno; |
|
|
1777 | data->laststype = PL_laststype; |
|
|
1778 | data->laststatval = PL_laststatval; |
|
|
1779 | data->statcache = PL_statcache; |
|
|
1780 | } |
|
|
1781 | OUTPUT: |
3047 | OUTPUT: |
1782 | RETVAL |
3048 | RETVAL |
1783 | |
3049 | |
1784 | void |
3050 | void |
1785 | _set_state (char *data_) |
3051 | rouse_wait (...) |
1786 | PROTOTYPE: $ |
3052 | PROTOTYPE: ;$ |
|
|
3053 | PPCODE: |
|
|
3054 | CORO_EXECUTE_SLF_XS (slf_init_rouse_wait); |
|
|
3055 | |
|
|
3056 | |
|
|
3057 | MODULE = Coro::State PACKAGE = PerlIO::cede |
|
|
3058 | |
|
|
3059 | BOOT: |
|
|
3060 | PerlIO_define_layer (aTHX_ &PerlIO_cede); |
|
|
3061 | |
|
|
3062 | |
|
|
3063 | MODULE = Coro::State PACKAGE = Coro::Semaphore |
|
|
3064 | |
|
|
3065 | SV * |
|
|
3066 | new (SV *klass, SV *count = 0) |
1787 | CODE: |
3067 | CODE: |
1788 | { |
3068 | RETVAL = sv_bless ( |
1789 | struct io_state *data = (void *)data_; |
3069 | coro_waitarray_new (aTHX_ count && SvOK (count) ? SvIV (count) : 1), |
|
|
3070 | GvSTASH (CvGV (cv)) |
|
|
3071 | ); |
|
|
3072 | OUTPUT: |
|
|
3073 | RETVAL |
1790 | |
3074 | |
1791 | errno = data->errorno; |
3075 | # helper for Coro::Channel |
1792 | PL_laststype = data->laststype; |
3076 | SV * |
1793 | PL_laststatval = data->laststatval; |
3077 | _alloc (int count) |
1794 | PL_statcache = data->statcache; |
3078 | CODE: |
1795 | } |
3079 | RETVAL = coro_waitarray_new (aTHX_ count); |
|
|
3080 | OUTPUT: |
|
|
3081 | RETVAL |
1796 | |
3082 | |
|
|
3083 | SV * |
|
|
3084 | count (SV *self) |
|
|
3085 | CODE: |
|
|
3086 | RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
|
|
3087 | OUTPUT: |
|
|
3088 | RETVAL |
|
|
3089 | |
|
|
3090 | void |
|
|
3091 | up (SV *self, int adjust = 1) |
|
|
3092 | ALIAS: |
|
|
3093 | adjust = 1 |
|
|
3094 | CODE: |
|
|
3095 | coro_semaphore_adjust (aTHX_ (AV *)SvRV (self), ix ? adjust : 1); |
|
|
3096 | |
|
|
3097 | void |
|
|
3098 | down (...) |
|
|
3099 | CODE: |
|
|
3100 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_down); |
|
|
3101 | |
|
|
3102 | void |
|
|
3103 | wait (...) |
|
|
3104 | CODE: |
|
|
3105 | CORO_EXECUTE_SLF_XS (slf_init_semaphore_wait); |
|
|
3106 | |
|
|
3107 | void |
|
|
3108 | try (SV *self) |
|
|
3109 | PPCODE: |
|
|
3110 | { |
|
|
3111 | AV *av = (AV *)SvRV (self); |
|
|
3112 | SV *count_sv = AvARRAY (av)[0]; |
|
|
3113 | IV count = SvIVX (count_sv); |
|
|
3114 | |
|
|
3115 | if (count > 0) |
|
|
3116 | { |
|
|
3117 | --count; |
|
|
3118 | SvIVX (count_sv) = count; |
|
|
3119 | XSRETURN_YES; |
|
|
3120 | } |
|
|
3121 | else |
|
|
3122 | XSRETURN_NO; |
|
|
3123 | } |
|
|
3124 | |
|
|
3125 | void |
|
|
3126 | waiters (SV *self) |
|
|
3127 | PPCODE: |
|
|
3128 | { |
|
|
3129 | AV *av = (AV *)SvRV (self); |
|
|
3130 | int wcount = AvFILLp (av) + 1 - 1; |
|
|
3131 | |
|
|
3132 | if (GIMME_V == G_SCALAR) |
|
|
3133 | XPUSHs (sv_2mortal (newSViv (wcount))); |
|
|
3134 | else |
|
|
3135 | { |
|
|
3136 | int i; |
|
|
3137 | EXTEND (SP, wcount); |
|
|
3138 | for (i = 1; i <= wcount; ++i) |
|
|
3139 | PUSHs (sv_2mortal (newRV_inc (AvARRAY (av)[i]))); |
|
|
3140 | } |
|
|
3141 | } |
|
|
3142 | |
|
|
3143 | MODULE = Coro::State PACKAGE = Coro::Signal |
|
|
3144 | |
|
|
3145 | SV * |
|
|
3146 | new (SV *klass) |
|
|
3147 | CODE: |
|
|
3148 | RETVAL = sv_bless ( |
|
|
3149 | coro_waitarray_new (aTHX_ 0), |
|
|
3150 | GvSTASH (CvGV (cv)) |
|
|
3151 | ); |
|
|
3152 | OUTPUT: |
|
|
3153 | RETVAL |
|
|
3154 | |
|
|
3155 | void |
|
|
3156 | wait (...) |
|
|
3157 | CODE: |
|
|
3158 | CORO_EXECUTE_SLF_XS (slf_init_signal_wait); |
|
|
3159 | |
|
|
3160 | void |
|
|
3161 | broadcast (SV *self) |
|
|
3162 | CODE: |
|
|
3163 | { |
|
|
3164 | AV *av = (AV *)SvRV (self); |
|
|
3165 | coro_signal_wake (aTHX_ av, AvFILLp (av)); |
|
|
3166 | } |
|
|
3167 | |
|
|
3168 | void |
|
|
3169 | send (SV *self) |
|
|
3170 | CODE: |
|
|
3171 | { |
|
|
3172 | AV *av = (AV *)SvRV (self); |
|
|
3173 | |
|
|
3174 | if (AvFILLp (av)) |
|
|
3175 | coro_signal_wake (aTHX_ av, 1); |
|
|
3176 | else |
|
|
3177 | SvIVX (AvARRAY (av)[0]) = 1; /* remember the signal */ |
|
|
3178 | } |
|
|
3179 | |
|
|
3180 | IV |
|
|
3181 | awaited (SV *self) |
|
|
3182 | CODE: |
|
|
3183 | RETVAL = AvFILLp ((AV *)SvRV (self)) + 1 - 1; |
|
|
3184 | OUTPUT: |
|
|
3185 | RETVAL |
|
|
3186 | |
|
|
3187 | |
|
|
3188 | MODULE = Coro::State PACKAGE = Coro::AnyEvent |
|
|
3189 | |
|
|
3190 | BOOT: |
|
|
3191 | sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
|
|
3192 | |
|
|
3193 | void |
|
|
3194 | _schedule (...) |
|
|
3195 | CODE: |
|
|
3196 | { |
|
|
3197 | static int incede; |
|
|
3198 | |
|
|
3199 | api_cede_notself (aTHX); |
|
|
3200 | |
|
|
3201 | ++incede; |
|
|
3202 | while (coro_nready >= incede && api_cede (aTHX)) |
|
|
3203 | ; |
|
|
3204 | |
|
|
3205 | sv_setsv (sv_activity, &PL_sv_undef); |
|
|
3206 | if (coro_nready >= incede) |
|
|
3207 | { |
|
|
3208 | PUSHMARK (SP); |
|
|
3209 | PUTBACK; |
|
|
3210 | call_pv ("Coro::AnyEvent::_activity", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
3211 | } |
|
|
3212 | |
|
|
3213 | --incede; |
|
|
3214 | } |
|
|
3215 | |
|
|
3216 | |
|
|
3217 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
3218 | |
|
|
3219 | void |
|
|
3220 | _register (char *target, char *proto, SV *req) |
|
|
3221 | CODE: |
|
|
3222 | { |
|
|
3223 | CV *req_cv = coro_sv_2cv (req); |
|
|
3224 | /* newXSproto doesn't return the CV on 5.8 */ |
|
|
3225 | CV *slf_cv = newXS (target, coro_aio_req_xs, __FILE__); |
|
|
3226 | sv_setpv ((SV *)slf_cv, proto); |
|
|
3227 | sv_magicext ((SV *)slf_cv, (SV *)req_cv, CORO_MAGIC_type_aio, 0, 0, 0); |
|
|
3228 | } |
|
|
3229 | |