|
|
1 | #include "libcoro/coro.c" |
|
|
2 | |
1 | #define PERL_NO_GET_CONTEXT |
3 | #define PERL_NO_GET_CONTEXT |
2 | |
|
|
3 | #include "libcoro/coro.c" |
|
|
4 | |
4 | |
5 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
6 | #include "perl.h" |
6 | #include "perl.h" |
7 | #include "XSUB.h" |
7 | #include "XSUB.h" |
8 | |
8 | |
9 | #include "patchlevel.h" |
9 | #include "patchlevel.h" |
10 | |
10 | |
11 | #if PERL_VERSION < 6 |
11 | #include <stdio.h> |
|
|
12 | #include <errno.h> |
|
|
13 | #include <assert.h> |
|
|
14 | |
|
|
15 | #ifdef HAVE_MMAP |
|
|
16 | # include <unistd.h> |
|
|
17 | # include <sys/mman.h> |
|
|
18 | # ifndef MAP_ANONYMOUS |
|
|
19 | # ifdef MAP_ANON |
|
|
20 | # define MAP_ANONYMOUS MAP_ANON |
|
|
21 | # else |
|
|
22 | # undef HAVE_MMAP |
|
|
23 | # endif |
|
|
24 | # endif |
|
|
25 | # include <limits.h> |
|
|
26 | # ifndef PAGESIZE |
|
|
27 | # define PAGESIZE pagesize |
|
|
28 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
|
|
29 | static long pagesize; |
|
|
30 | # else |
|
|
31 | # define BOOT_PAGESIZE (void)0 |
|
|
32 | # endif |
|
|
33 | #else |
|
|
34 | # define PAGESIZE 0 |
|
|
35 | # define BOOT_PAGESIZE (void)0 |
|
|
36 | #endif |
|
|
37 | |
|
|
38 | #if CORO_USE_VALGRIND |
|
|
39 | # include <valgrind/valgrind.h> |
|
|
40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
|
|
41 | #else |
|
|
42 | # define REGISTER_STACK(cctx,start,end) |
|
|
43 | #endif |
|
|
44 | |
|
|
45 | /* the maximum number of idle cctx that will be pooled */ |
|
|
46 | #define MAX_IDLE_CCTX 8 |
|
|
47 | |
|
|
48 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
|
|
49 | (PERL_REVISION > (a) \ |
|
|
50 | || (PERL_REVISION == (a) \ |
|
|
51 | && (PERL_VERSION > (b) \ |
|
|
52 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
|
|
53 | |
|
|
54 | #if !PERL_VERSION_ATLEAST (5,6,0) |
12 | # ifndef PL_ppaddr |
55 | # ifndef PL_ppaddr |
13 | # define PL_ppaddr ppaddr |
56 | # define PL_ppaddr ppaddr |
14 | # endif |
57 | # endif |
15 | # ifndef call_sv |
58 | # ifndef call_sv |
16 | # define call_sv perl_call_sv |
59 | # define call_sv perl_call_sv |
… | |
… | |
27 | # ifndef IS_PADCONST |
70 | # ifndef IS_PADCONST |
28 | # define IS_PADCONST(v) 0 |
71 | # define IS_PADCONST(v) 0 |
29 | # endif |
72 | # endif |
30 | #endif |
73 | #endif |
31 | |
74 | |
32 | #include <errno.h> |
75 | /* 5.8.7 */ |
33 | #include <signal.h> |
76 | #ifndef SvRV_set |
34 | |
77 | # define SvRV_set(s,v) SvRV(s) = (v) |
35 | #ifdef HAVE_MMAP |
|
|
36 | # include <unistd.h> |
|
|
37 | # include <sys/mman.h> |
|
|
38 | # ifndef MAP_ANONYMOUS |
|
|
39 | # ifdef MAP_ANON |
|
|
40 | # define MAP_ANONYMOUS MAP_ANON |
|
|
41 | # else |
|
|
42 | # undef HAVE_MMAP |
|
|
43 | # endif |
|
|
44 | # endif |
78 | #endif |
45 | #endif |
|
|
46 | |
79 | |
47 | #define SUB_INIT "Coro::State::initialize" |
80 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
48 | #define UCORO_STATE "_coro_state" |
81 | # undef CORO_STACKGUARD |
|
|
82 | #endif |
49 | |
83 | |
50 | /* The next macro should declare a variable stacklevel that contains and approximation |
84 | #ifndef CORO_STACKGUARD |
51 | * to the current C stack pointer. Its property is that it changes with each call |
85 | # define CORO_STACKGUARD 0 |
52 | * and should be unique. */ |
86 | #endif |
|
|
87 | |
|
|
88 | /* prefer perl internal functions over our own? */ |
|
|
89 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
|
|
90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
|
|
91 | #endif |
|
|
92 | |
|
|
93 | /* The next macros try to return the current stack pointer, in an as |
|
|
94 | * portable way as possible. */ |
|
|
95 | #define dSTACKLEVEL volatile char stacklevel |
53 | #define dSTACKLEVEL void *stacklevel = &stacklevel |
96 | #define STACKLEVEL ((void *)&stacklevel) |
54 | |
97 | |
55 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
98 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
56 | |
99 | |
57 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
100 | #if __GNUC__ >= 3 |
|
|
101 | # define attribute(x) __attribute__(x) |
|
|
102 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
|
|
103 | #else |
|
|
104 | # define attribute(x) |
|
|
105 | # define BARRIER |
|
|
106 | #endif |
|
|
107 | |
|
|
108 | #define NOINLINE attribute ((noinline)) |
58 | |
109 | |
59 | #include "CoroAPI.h" |
110 | #include "CoroAPI.h" |
60 | |
111 | |
61 | #ifdef USE_ITHREADS |
112 | #ifdef USE_ITHREADS |
62 | static perl_mutex coro_mutex; |
113 | static perl_mutex coro_mutex; |
… | |
… | |
65 | #else |
116 | #else |
66 | # define LOCK (void)0 |
117 | # define LOCK (void)0 |
67 | # define UNLOCK (void)0 |
118 | # define UNLOCK (void)0 |
68 | #endif |
119 | #endif |
69 | |
120 | |
|
|
121 | /* helper storage struct for Coro::AIO */ |
|
|
122 | struct io_state |
|
|
123 | { |
|
|
124 | int errorno; |
|
|
125 | I32 laststype; |
|
|
126 | int laststatval; |
|
|
127 | Stat_t statcache; |
|
|
128 | }; |
|
|
129 | |
|
|
130 | static size_t coro_stacksize = CORO_STACKSIZE; |
70 | static struct CoroAPI coroapi; |
131 | static struct CoroAPI coroapi; |
71 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
|
|
133 | static JMPENV *main_top_env; |
72 | static HV *coro_state_stash; |
134 | static HV *coro_state_stash, *coro_stash; |
73 | static SV *ucoro_state_sv; |
|
|
74 | static U32 ucoro_state_hash; |
|
|
75 | static SV *coro_mortal; /* will be freed after next transfer */ |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
76 | |
136 | |
77 | /* this is actually not only the c stack but also c registers etc... */ |
137 | /* async_pool helper stuff */ |
|
|
138 | static SV *sv_pool_rss; |
|
|
139 | static SV *sv_pool_size; |
|
|
140 | static AV *av_async_pool; |
|
|
141 | |
|
|
142 | static struct coro_cctx *cctx_first; |
|
|
143 | static int cctx_count, cctx_idle; |
|
|
144 | |
|
|
145 | enum { |
|
|
146 | CC_MAPPED = 0x01, |
|
|
147 | CC_TRACE = 0x02, |
|
|
148 | CC_NOREUSE = 0x04, /* throw this away after tracing */ |
|
|
149 | }; |
|
|
150 | |
|
|
151 | /* this is a structure representing a c-level coroutine */ |
78 | typedef struct { |
152 | typedef struct coro_cctx { |
79 | int refcnt; /* pointer reference counter */ |
153 | struct coro_cctx *next; |
80 | int usecnt; /* shared by how many coroutines */ |
|
|
81 | int gencnt; /* generation counter */ |
|
|
82 | |
154 | |
|
|
155 | /* the stack */ |
|
|
156 | void *sptr; |
|
|
157 | size_t ssize; |
|
|
158 | |
|
|
159 | /* cpu state */ |
|
|
160 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
|
|
161 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
|
|
162 | JMPENV *top_env; |
83 | coro_context cctx; |
163 | coro_context cctx; |
84 | |
164 | |
85 | void *sptr; |
165 | #if CORO_USE_VALGRIND |
86 | long ssize; /* positive == mmap, otherwise malloc */ |
166 | int valgrind_id; |
87 | } coro_stack; |
167 | #endif |
|
|
168 | unsigned char flags; |
|
|
169 | } coro_cctx; |
88 | |
170 | |
|
|
171 | enum { |
|
|
172 | CF_RUNNING = 0x0001, /* coroutine is running */ |
|
|
173 | CF_READY = 0x0002, /* coroutine is ready */ |
|
|
174 | CF_NEW = 0x0004, /* has never been switched to */ |
|
|
175 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
|
|
176 | }; |
|
|
177 | |
|
|
178 | /* this is a structure representing a perl-level coroutine */ |
89 | struct coro { |
179 | struct coro { |
90 | /* the top-level JMPENV for each coroutine, needed to catch dies. */ |
180 | /* the c coroutine allocated to this perl coroutine, if any */ |
91 | JMPENV start_env; |
181 | coro_cctx *cctx; |
92 | |
|
|
93 | /* the optional C context */ |
|
|
94 | coro_stack *stack; |
|
|
95 | void *cursp; |
|
|
96 | int gencnt; |
|
|
97 | |
|
|
98 | /* optionally saved, might be zero */ |
|
|
99 | AV *defav; |
|
|
100 | SV *defsv; |
|
|
101 | SV *errsv; |
|
|
102 | |
|
|
103 | /* saved global state not related to stacks */ |
|
|
104 | U8 dowarn; |
|
|
105 | I32 in_eval; |
|
|
106 | |
|
|
107 | /* the stacks and related info (callchain etc..) */ |
|
|
108 | PERL_SI *curstackinfo; |
|
|
109 | AV *curstack; |
|
|
110 | AV *mainstack; |
|
|
111 | SV **stack_sp; |
|
|
112 | OP *op; |
|
|
113 | SV **curpad; |
|
|
114 | AV *comppad; |
|
|
115 | CV *compcv; |
|
|
116 | SV **stack_base; |
|
|
117 | SV **stack_max; |
|
|
118 | SV **tmps_stack; |
|
|
119 | I32 tmps_floor; |
|
|
120 | I32 tmps_ix; |
|
|
121 | I32 tmps_max; |
|
|
122 | I32 *markstack; |
|
|
123 | I32 *markstack_ptr; |
|
|
124 | I32 *markstack_max; |
|
|
125 | I32 *scopestack; |
|
|
126 | I32 scopestack_ix; |
|
|
127 | I32 scopestack_max; |
|
|
128 | ANY *savestack; |
|
|
129 | I32 savestack_ix; |
|
|
130 | I32 savestack_max; |
|
|
131 | OP **retstack; |
|
|
132 | I32 retstack_ix; |
|
|
133 | I32 retstack_max; |
|
|
134 | PMOP *curpm; |
|
|
135 | COP *curcop; |
|
|
136 | JMPENV *top_env; |
|
|
137 | |
182 | |
138 | /* data associated with this coroutine (initial args) */ |
183 | /* data associated with this coroutine (initial args) */ |
139 | AV *args; |
184 | AV *args; |
|
|
185 | int refcnt; |
|
|
186 | int save; /* CORO_SAVE flags */ |
|
|
187 | int flags; /* CF_ flags */ |
|
|
188 | |
|
|
189 | /* optionally saved, might be zero */ |
|
|
190 | AV *defav; /* @_ */ |
|
|
191 | SV *defsv; /* $_ */ |
|
|
192 | SV *errsv; /* $@ */ |
|
|
193 | GV *deffh; /* default filehandle */ |
|
|
194 | SV *irssv; /* $/ */ |
|
|
195 | SV *irssv_sv; /* real $/ cache */ |
|
|
196 | |
|
|
197 | #define VAR(name,type) type name; |
|
|
198 | # include "state.h" |
|
|
199 | #undef VAR |
|
|
200 | |
|
|
201 | /* coro process data */ |
|
|
202 | int prio; |
|
|
203 | |
|
|
204 | /* linked list */ |
|
|
205 | struct coro *next, *prev; |
|
|
206 | HV *hv; /* the perl hash associated with this coro, if any */ |
140 | }; |
207 | }; |
141 | |
208 | |
142 | typedef struct coro *Coro__State; |
209 | typedef struct coro *Coro__State; |
143 | typedef struct coro *Coro__State_or_hashref; |
210 | typedef struct coro *Coro__State_or_hashref; |
144 | |
211 | |
145 | /* mostly copied from op.c:cv_clone2 */ |
212 | /** Coro ********************************************************************/ |
146 | STATIC AV * |
213 | |
147 | clone_padlist (pTHX_ AV *protopadlist) |
214 | #define PRIO_MAX 3 |
|
|
215 | #define PRIO_HIGH 1 |
|
|
216 | #define PRIO_NORMAL 0 |
|
|
217 | #define PRIO_LOW -1 |
|
|
218 | #define PRIO_IDLE -3 |
|
|
219 | #define PRIO_MIN -4 |
|
|
220 | |
|
|
221 | /* for Coro.pm */ |
|
|
222 | static SV *coro_current; |
|
|
223 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
224 | static int coro_nready; |
|
|
225 | static struct coro *coro_first; |
|
|
226 | |
|
|
227 | /** lowlevel stuff **********************************************************/ |
|
|
228 | |
|
|
229 | static AV * |
|
|
230 | coro_clone_padlist (pTHX_ CV *cv) |
148 | { |
231 | { |
149 | AV *av; |
232 | AV *padlist = CvPADLIST (cv); |
150 | I32 ix; |
|
|
151 | AV *protopad_name = (AV *) * av_fetch (protopadlist, 0, FALSE); |
|
|
152 | AV *protopad = (AV *) * av_fetch (protopadlist, 1, FALSE); |
|
|
153 | SV **pname = AvARRAY (protopad_name); |
|
|
154 | SV **ppad = AvARRAY (protopad); |
|
|
155 | I32 fname = AvFILLp (protopad_name); |
|
|
156 | I32 fpad = AvFILLp (protopad); |
|
|
157 | AV *newpadlist, *newpad_name, *newpad; |
233 | AV *newpadlist, *newpad; |
158 | SV **npad; |
|
|
159 | |
|
|
160 | newpad_name = newAV (); |
|
|
161 | for (ix = fname; ix >= 0; ix--) |
|
|
162 | av_store (newpad_name, ix, SvREFCNT_inc (pname[ix])); |
|
|
163 | |
|
|
164 | newpad = newAV (); |
|
|
165 | av_fill (newpad, AvFILLp (protopad)); |
|
|
166 | npad = AvARRAY (newpad); |
|
|
167 | |
234 | |
168 | newpadlist = newAV (); |
235 | newpadlist = newAV (); |
169 | AvREAL_off (newpadlist); |
236 | AvREAL_off (newpadlist); |
170 | av_store (newpadlist, 0, (SV *) newpad_name); |
237 | #if PERL_VERSION_ATLEAST (5,9,0) |
|
|
238 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
|
|
239 | #else |
|
|
240 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
|
|
241 | #endif |
|
|
242 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
|
|
243 | --AvFILLp (padlist); |
|
|
244 | |
|
|
245 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
171 | av_store (newpadlist, 1, (SV *) newpad); |
246 | av_store (newpadlist, 1, (SV *)newpad); |
172 | |
|
|
173 | av = newAV (); /* will be @_ */ |
|
|
174 | av_extend (av, 0); |
|
|
175 | av_store (newpad, 0, (SV *) av); |
|
|
176 | AvREIFY_on (av); |
|
|
177 | |
|
|
178 | for (ix = fpad; ix > 0; ix--) |
|
|
179 | { |
|
|
180 | SV *namesv = (ix <= fname) ? pname[ix] : Nullsv; |
|
|
181 | |
|
|
182 | if (namesv && namesv != &PL_sv_undef) |
|
|
183 | { |
|
|
184 | char *name = SvPVX (namesv); /* XXX */ |
|
|
185 | |
|
|
186 | if (SvFLAGS (namesv) & SVf_FAKE || *name == '&') |
|
|
187 | { /* lexical from outside? */ |
|
|
188 | npad[ix] = SvREFCNT_inc (ppad[ix]); |
|
|
189 | } |
|
|
190 | else |
|
|
191 | { /* our own lexical */ |
|
|
192 | SV *sv; |
|
|
193 | if (*name == '&') |
|
|
194 | sv = SvREFCNT_inc (ppad[ix]); |
|
|
195 | else if (*name == '@') |
|
|
196 | sv = (SV *) newAV (); |
|
|
197 | else if (*name == '%') |
|
|
198 | sv = (SV *) newHV (); |
|
|
199 | else |
|
|
200 | sv = NEWSV (0, 0); |
|
|
201 | |
|
|
202 | #ifdef SvPADBUSY |
|
|
203 | if (!SvPADBUSY (sv)) |
|
|
204 | #endif |
|
|
205 | SvPADMY_on (sv); |
|
|
206 | |
|
|
207 | npad[ix] = sv; |
|
|
208 | } |
|
|
209 | } |
|
|
210 | else if (IS_PADGV (ppad[ix]) || IS_PADCONST (ppad[ix])) |
|
|
211 | { |
|
|
212 | npad[ix] = SvREFCNT_inc (ppad[ix]); |
|
|
213 | } |
|
|
214 | else |
|
|
215 | { |
|
|
216 | SV *sv = NEWSV (0, 0); |
|
|
217 | SvPADTMP_on (sv); |
|
|
218 | npad[ix] = sv; |
|
|
219 | } |
|
|
220 | } |
|
|
221 | |
|
|
222 | #if 0 /* return -ENOTUNDERSTOOD */ |
|
|
223 | /* Now that vars are all in place, clone nested closures. */ |
|
|
224 | |
|
|
225 | for (ix = fpad; ix > 0; ix--) { |
|
|
226 | SV* namesv = (ix <= fname) ? pname[ix] : Nullsv; |
|
|
227 | if (namesv |
|
|
228 | && namesv != &PL_sv_undef |
|
|
229 | && !(SvFLAGS(namesv) & SVf_FAKE) |
|
|
230 | && *SvPVX(namesv) == '&' |
|
|
231 | && CvCLONE(ppad[ix])) |
|
|
232 | { |
|
|
233 | CV *kid = cv_clone((CV*)ppad[ix]); |
|
|
234 | SvREFCNT_dec(ppad[ix]); |
|
|
235 | CvCLONE_on(kid); |
|
|
236 | SvPADMY_on(kid); |
|
|
237 | npad[ix] = (SV*)kid; |
|
|
238 | } |
|
|
239 | } |
|
|
240 | #endif |
|
|
241 | |
247 | |
242 | return newpadlist; |
248 | return newpadlist; |
243 | } |
249 | } |
244 | |
250 | |
245 | STATIC void |
251 | static void |
246 | free_padlist (pTHX_ AV *padlist) |
252 | free_padlist (pTHX_ AV *padlist) |
247 | { |
253 | { |
248 | /* may be during global destruction */ |
254 | /* may be during global destruction */ |
249 | if (SvREFCNT (padlist)) |
255 | if (SvREFCNT (padlist)) |
250 | { |
256 | { |
… | |
… | |
264 | |
270 | |
265 | SvREFCNT_dec ((SV*)padlist); |
271 | SvREFCNT_dec ((SV*)padlist); |
266 | } |
272 | } |
267 | } |
273 | } |
268 | |
274 | |
269 | STATIC int |
275 | static int |
270 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
276 | coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
271 | { |
277 | { |
272 | AV *padlist; |
278 | AV *padlist; |
273 | AV *av = (AV *)mg->mg_obj; |
279 | AV *av = (AV *)mg->mg_obj; |
274 | |
280 | |
275 | /* casting is fun. */ |
281 | /* casting is fun. */ |
276 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
282 | while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
277 | free_padlist (aTHX_ padlist); |
283 | free_padlist (aTHX_ padlist); |
278 | |
284 | |
279 | SvREFCNT_dec (av); |
285 | SvREFCNT_dec (av); |
|
|
286 | |
|
|
287 | return 0; |
280 | } |
288 | } |
281 | |
289 | |
282 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
290 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
283 | |
291 | |
284 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
292 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
285 | |
293 | |
|
|
294 | #define CORO_MAGIC(cv) \ |
|
|
295 | SvMAGIC (cv) \ |
|
|
296 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
|
|
297 | ? SvMAGIC (cv) \ |
|
|
298 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
|
|
299 | : 0 |
|
|
300 | |
286 | /* the next two functions merely cache the padlists */ |
301 | /* the next two functions merely cache the padlists */ |
287 | STATIC void |
302 | static void |
288 | get_padlist (pTHX_ CV *cv) |
303 | get_padlist (pTHX_ CV *cv) |
289 | { |
304 | { |
290 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
305 | MAGIC *mg = CORO_MAGIC (cv); |
|
|
306 | AV *av; |
291 | |
307 | |
292 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
308 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
293 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
309 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
294 | else |
310 | else |
|
|
311 | { |
|
|
312 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
313 | /* this is probably cleaner, but also slower? */ |
|
|
314 | CV *cp = Perl_cv_clone (cv); |
|
|
315 | CvPADLIST (cv) = CvPADLIST (cp); |
|
|
316 | CvPADLIST (cp) = 0; |
|
|
317 | SvREFCNT_dec (cp); |
|
|
318 | #else |
295 | CvPADLIST (cv) = clone_padlist (aTHX_ CvPADLIST (cv)); |
319 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
|
|
320 | #endif |
|
|
321 | } |
296 | } |
322 | } |
297 | |
323 | |
298 | STATIC void |
324 | static void |
299 | put_padlist (pTHX_ CV *cv) |
325 | put_padlist (pTHX_ CV *cv) |
300 | { |
326 | { |
301 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
327 | MAGIC *mg = CORO_MAGIC (cv); |
|
|
328 | AV *av; |
302 | |
329 | |
303 | if (!mg) |
330 | if (!mg) |
304 | { |
331 | { |
305 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
332 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
306 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
333 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
307 | mg->mg_virtual = &vtbl_coro; |
334 | mg->mg_virtual = &vtbl_coro; |
308 | mg->mg_obj = (SV *)newAV (); |
335 | mg->mg_obj = (SV *)newAV (); |
309 | } |
336 | } |
310 | |
337 | |
311 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
338 | av = (AV *)mg->mg_obj; |
|
|
339 | |
|
|
340 | if (AvFILLp (av) >= AvMAX (av)) |
|
|
341 | av_extend (av, AvMAX (av) + 1); |
|
|
342 | |
|
|
343 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
312 | } |
344 | } |
|
|
345 | |
|
|
346 | /** load & save, init *******************************************************/ |
313 | |
347 | |
314 | #define SB do { |
348 | #define SB do { |
315 | #define SE } while (0) |
349 | #define SE } while (0) |
316 | |
350 | |
317 | #define LOAD(state) load_state(aTHX_ (state)); |
|
|
318 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
|
|
319 | |
|
|
320 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
351 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
321 | |
352 | |
322 | static void |
353 | static void |
323 | load_state(pTHX_ Coro__State c) |
354 | load_perl (pTHX_ Coro__State c) |
324 | { |
355 | { |
325 | PL_dowarn = c->dowarn; |
356 | #define VAR(name,type) PL_ ## name = c->name; |
326 | PL_in_eval = c->in_eval; |
357 | # include "state.h" |
327 | |
358 | #undef VAR |
328 | PL_curstackinfo = c->curstackinfo; |
|
|
329 | PL_curstack = c->curstack; |
|
|
330 | PL_mainstack = c->mainstack; |
|
|
331 | PL_stack_sp = c->stack_sp; |
|
|
332 | PL_op = c->op; |
|
|
333 | PL_curpad = c->curpad; |
|
|
334 | PL_comppad = c->comppad; |
|
|
335 | PL_compcv = c->compcv; |
|
|
336 | PL_stack_base = c->stack_base; |
|
|
337 | PL_stack_max = c->stack_max; |
|
|
338 | PL_tmps_stack = c->tmps_stack; |
|
|
339 | PL_tmps_floor = c->tmps_floor; |
|
|
340 | PL_tmps_ix = c->tmps_ix; |
|
|
341 | PL_tmps_max = c->tmps_max; |
|
|
342 | PL_markstack = c->markstack; |
|
|
343 | PL_markstack_ptr = c->markstack_ptr; |
|
|
344 | PL_markstack_max = c->markstack_max; |
|
|
345 | PL_scopestack = c->scopestack; |
|
|
346 | PL_scopestack_ix = c->scopestack_ix; |
|
|
347 | PL_scopestack_max = c->scopestack_max; |
|
|
348 | PL_savestack = c->savestack; |
|
|
349 | PL_savestack_ix = c->savestack_ix; |
|
|
350 | PL_savestack_max = c->savestack_max; |
|
|
351 | #ifdef PL_retstack |
|
|
352 | PL_retstack = c->retstack; |
|
|
353 | PL_retstack_ix = c->retstack_ix; |
|
|
354 | PL_retstack_max = c->retstack_max; |
|
|
355 | #endif |
|
|
356 | PL_curpm = c->curpm; |
|
|
357 | PL_curcop = c->curcop; |
|
|
358 | PL_top_env = c->top_env; |
|
|
359 | |
359 | |
360 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
360 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
361 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
361 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
362 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
362 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
363 | if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); |
|
|
364 | |
|
|
365 | if (c->irssv) |
|
|
366 | { |
|
|
367 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
368 | { |
|
|
369 | SvREFCNT_dec (c->irssv); |
|
|
370 | c->irssv = 0; |
|
|
371 | } |
|
|
372 | else |
|
|
373 | { |
|
|
374 | REPLACE_SV (PL_rs, c->irssv); |
|
|
375 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
376 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
377 | } |
|
|
378 | } |
363 | |
379 | |
364 | { |
380 | { |
365 | dSP; |
381 | dSP; |
366 | CV *cv; |
382 | CV *cv; |
367 | |
383 | |
368 | /* now do the ugly restore mess */ |
384 | /* now do the ugly restore mess */ |
369 | while ((cv = (CV *)POPs)) |
385 | while ((cv = (CV *)POPs)) |
370 | { |
386 | { |
371 | AV *padlist = (AV *)POPs; |
|
|
372 | |
|
|
373 | if (padlist) |
|
|
374 | { |
|
|
375 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
387 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
376 | CvPADLIST(cv) = padlist; |
388 | CvDEPTH (cv) = PTR2IV (POPs); |
377 | } |
389 | CvPADLIST (cv) = (AV *)POPs; |
378 | |
|
|
379 | ++CvDEPTH(cv); |
|
|
380 | } |
390 | } |
381 | |
391 | |
382 | PUTBACK; |
392 | PUTBACK; |
383 | } |
393 | } |
384 | } |
394 | } |
385 | |
395 | |
386 | static void |
396 | static void |
387 | save_state(pTHX_ Coro__State c, int flags) |
397 | save_perl (pTHX_ Coro__State c) |
388 | { |
398 | { |
389 | { |
399 | { |
390 | dSP; |
400 | dSP; |
391 | I32 cxix = cxstack_ix; |
401 | I32 cxix = cxstack_ix; |
392 | PERL_CONTEXT *ccstk = cxstack; |
402 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
395 | /* |
405 | /* |
396 | * the worst thing you can imagine happens first - we have to save |
406 | * the worst thing you can imagine happens first - we have to save |
397 | * (and reinitialize) all cv's in the whole callchain :( |
407 | * (and reinitialize) all cv's in the whole callchain :( |
398 | */ |
408 | */ |
399 | |
409 | |
400 | PUSHs (Nullsv); |
410 | XPUSHs (Nullsv); |
401 | /* this loop was inspired by pp_caller */ |
411 | /* this loop was inspired by pp_caller */ |
402 | for (;;) |
412 | for (;;) |
403 | { |
413 | { |
404 | while (cxix >= 0) |
414 | while (cxix >= 0) |
405 | { |
415 | { |
406 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
416 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
407 | |
417 | |
408 | if (CxTYPE(cx) == CXt_SUB) |
418 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
409 | { |
419 | { |
410 | CV *cv = cx->blk_sub.cv; |
420 | CV *cv = cx->blk_sub.cv; |
|
|
421 | |
411 | if (CvDEPTH(cv)) |
422 | if (CvDEPTH (cv)) |
412 | { |
423 | { |
413 | EXTEND (SP, CvDEPTH(cv)*2); |
424 | EXTEND (SP, 3); |
414 | |
|
|
415 | while (--CvDEPTH(cv)) |
|
|
416 | { |
|
|
417 | /* this tells the restore code to increment CvDEPTH */ |
|
|
418 | PUSHs (Nullsv); |
|
|
419 | PUSHs ((SV *)cv); |
|
|
420 | } |
|
|
421 | |
|
|
422 | PUSHs ((SV *)CvPADLIST(cv)); |
425 | PUSHs ((SV *)CvPADLIST (cv)); |
|
|
426 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
423 | PUSHs ((SV *)cv); |
427 | PUSHs ((SV *)cv); |
424 | |
428 | |
|
|
429 | CvDEPTH (cv) = 0; |
425 | get_padlist (aTHX_ cv); /* this is a monster */ |
430 | get_padlist (aTHX_ cv); |
426 | } |
431 | } |
427 | } |
432 | } |
428 | #ifdef CXt_FORMAT |
|
|
429 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
430 | { |
|
|
431 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
432 | /* my bold guess is as a simple, plain sub... */ |
|
|
433 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
434 | } |
|
|
435 | #endif |
|
|
436 | } |
433 | } |
437 | |
434 | |
438 | if (top_si->si_type == PERLSI_MAIN) |
435 | if (top_si->si_type == PERLSI_MAIN) |
439 | break; |
436 | break; |
440 | |
437 | |
441 | top_si = top_si->si_prev; |
438 | top_si = top_si->si_prev; |
442 | ccstk = top_si->si_cxstack; |
439 | ccstk = top_si->si_cxstack; |
443 | cxix = top_si->si_cxix; |
440 | cxix = top_si->si_cxix; |
444 | } |
441 | } |
445 | |
442 | |
446 | PUTBACK; |
443 | PUTBACK; |
447 | } |
444 | } |
448 | |
445 | |
449 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
446 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
450 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
447 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
451 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
448 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
|
|
449 | c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; |
|
|
450 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
452 | |
451 | |
453 | c->dowarn = PL_dowarn; |
452 | #define VAR(name,type)c->name = PL_ ## name; |
454 | c->in_eval = PL_in_eval; |
453 | # include "state.h" |
455 | |
454 | #undef VAR |
456 | c->curstackinfo = PL_curstackinfo; |
|
|
457 | c->curstack = PL_curstack; |
|
|
458 | c->mainstack = PL_mainstack; |
|
|
459 | c->stack_sp = PL_stack_sp; |
|
|
460 | c->op = PL_op; |
|
|
461 | c->curpad = PL_curpad; |
|
|
462 | c->comppad = PL_comppad; |
|
|
463 | c->compcv = PL_compcv; |
|
|
464 | c->stack_base = PL_stack_base; |
|
|
465 | c->stack_max = PL_stack_max; |
|
|
466 | c->tmps_stack = PL_tmps_stack; |
|
|
467 | c->tmps_floor = PL_tmps_floor; |
|
|
468 | c->tmps_ix = PL_tmps_ix; |
|
|
469 | c->tmps_max = PL_tmps_max; |
|
|
470 | c->markstack = PL_markstack; |
|
|
471 | c->markstack_ptr = PL_markstack_ptr; |
|
|
472 | c->markstack_max = PL_markstack_max; |
|
|
473 | c->scopestack = PL_scopestack; |
|
|
474 | c->scopestack_ix = PL_scopestack_ix; |
|
|
475 | c->scopestack_max = PL_scopestack_max; |
|
|
476 | c->savestack = PL_savestack; |
|
|
477 | c->savestack_ix = PL_savestack_ix; |
|
|
478 | c->savestack_max = PL_savestack_max; |
|
|
479 | #ifdef PL_retstack |
|
|
480 | c->retstack = PL_retstack; |
|
|
481 | c->retstack_ix = PL_retstack_ix; |
|
|
482 | c->retstack_max = PL_retstack_max; |
|
|
483 | #endif |
|
|
484 | c->curpm = PL_curpm; |
|
|
485 | c->curcop = PL_curcop; |
|
|
486 | c->top_env = PL_top_env; |
|
|
487 | } |
455 | } |
488 | |
456 | |
489 | /* |
457 | /* |
490 | * allocate various perl stacks. This is an exact copy |
458 | * allocate various perl stacks. This is an exact copy |
491 | * of perl.c:init_stacks, except that it uses less memory |
459 | * of perl.c:init_stacks, except that it uses less memory |
492 | * on the (sometimes correct) assumption that coroutines do |
460 | * on the (sometimes correct) assumption that coroutines do |
493 | * not usually need a lot of stackspace. |
461 | * not usually need a lot of stackspace. |
494 | */ |
462 | */ |
495 | STATIC void |
463 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
464 | # define coro_init_stacks init_stacks |
|
|
465 | #else |
|
|
466 | static void |
496 | coro_init_stacks (pTHX) |
467 | coro_init_stacks (pTHX) |
497 | { |
468 | { |
498 | LOCK; |
469 | PL_curstackinfo = new_stackinfo(64, 6); |
499 | |
|
|
500 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
|
|
501 | PL_curstackinfo->si_type = PERLSI_MAIN; |
470 | PL_curstackinfo->si_type = PERLSI_MAIN; |
502 | PL_curstack = PL_curstackinfo->si_stack; |
471 | PL_curstack = PL_curstackinfo->si_stack; |
503 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
472 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
504 | |
473 | |
505 | PL_stack_base = AvARRAY(PL_curstack); |
474 | PL_stack_base = AvARRAY(PL_curstack); |
506 | PL_stack_sp = PL_stack_base; |
475 | PL_stack_sp = PL_stack_base; |
507 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
476 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
508 | |
477 | |
509 | New(50,PL_tmps_stack,96,SV*); |
478 | New(50,PL_tmps_stack,64,SV*); |
510 | PL_tmps_floor = -1; |
479 | PL_tmps_floor = -1; |
511 | PL_tmps_ix = -1; |
480 | PL_tmps_ix = -1; |
512 | PL_tmps_max = 96; |
481 | PL_tmps_max = 64; |
513 | |
482 | |
514 | New(54,PL_markstack,16,I32); |
483 | New(54,PL_markstack,16,I32); |
515 | PL_markstack_ptr = PL_markstack; |
484 | PL_markstack_ptr = PL_markstack; |
516 | PL_markstack_max = PL_markstack + 16; |
485 | PL_markstack_max = PL_markstack + 16; |
517 | |
486 | |
… | |
… | |
521 | |
490 | |
522 | New(54,PL_scopestack,16,I32); |
491 | New(54,PL_scopestack,16,I32); |
523 | PL_scopestack_ix = 0; |
492 | PL_scopestack_ix = 0; |
524 | PL_scopestack_max = 16; |
493 | PL_scopestack_max = 16; |
525 | |
494 | |
526 | New(54,PL_savestack,96,ANY); |
495 | New(54,PL_savestack,64,ANY); |
527 | PL_savestack_ix = 0; |
496 | PL_savestack_ix = 0; |
528 | PL_savestack_max = 96; |
497 | PL_savestack_max = 64; |
529 | |
498 | |
530 | #ifdef PL_retstack |
499 | #if !PERL_VERSION_ATLEAST (5,9,0) |
531 | New(54,PL_retstack,8,OP*); |
500 | New(54,PL_retstack,4,OP*); |
532 | PL_retstack_ix = 0; |
501 | PL_retstack_ix = 0; |
533 | PL_retstack_max = 8; |
502 | PL_retstack_max = 4; |
534 | #endif |
503 | #endif |
535 | |
|
|
536 | UNLOCK; |
|
|
537 | } |
504 | } |
|
|
505 | #endif |
538 | |
506 | |
539 | /* |
507 | /* |
540 | * destroy the stacks, the callchain etc... |
508 | * destroy the stacks, the callchain etc... |
541 | */ |
509 | */ |
542 | STATIC void |
510 | static void |
543 | destroy_stacks(pTHX) |
511 | coro_destroy_stacks (pTHX) |
544 | { |
512 | { |
545 | if (!IN_DESTRUCT) |
513 | if (!IN_DESTRUCT) |
546 | { |
514 | { |
547 | /* is this ugly, I ask? */ |
515 | /* restore all saved variables and stuff */ |
548 | LEAVE_SCOPE (0); |
516 | LEAVE_SCOPE (0); |
|
|
517 | assert (PL_tmps_floor == -1); |
549 | |
518 | |
550 | /* sure it is, but more important: is it correct?? :/ */ |
519 | /* free all temporaries */ |
551 | FREETMPS; |
520 | FREETMPS; |
|
|
521 | assert (PL_tmps_ix == -1); |
552 | |
522 | |
|
|
523 | /* unwind all extra stacks */ |
553 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
524 | POPSTACK_TO (PL_mainstack); |
|
|
525 | |
|
|
526 | /* unwind main stack */ |
|
|
527 | dounwind (-1); |
554 | } |
528 | } |
555 | |
529 | |
556 | while (PL_curstackinfo->si_next) |
530 | while (PL_curstackinfo->si_next) |
557 | PL_curstackinfo = PL_curstackinfo->si_next; |
531 | PL_curstackinfo = PL_curstackinfo->si_next; |
558 | |
532 | |
559 | while (PL_curstackinfo) |
533 | while (PL_curstackinfo) |
560 | { |
534 | { |
561 | PERL_SI *p = PL_curstackinfo->si_prev; |
535 | PERL_SI *p = PL_curstackinfo->si_prev; |
562 | |
536 | |
563 | { /*D*//*remove*/ |
|
|
564 | dSP; |
|
|
565 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
566 | PUTBACK; /* possibly superfluous */ |
|
|
567 | } |
|
|
568 | |
|
|
569 | if (!IN_DESTRUCT) |
537 | if (!IN_DESTRUCT) |
570 | { |
|
|
571 | dounwind (-1);/*D*//*remove*/ |
|
|
572 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
538 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
573 | } |
|
|
574 | |
539 | |
575 | Safefree (PL_curstackinfo->si_cxstack); |
540 | Safefree (PL_curstackinfo->si_cxstack); |
576 | Safefree (PL_curstackinfo); |
541 | Safefree (PL_curstackinfo); |
577 | PL_curstackinfo = p; |
542 | PL_curstackinfo = p; |
578 | } |
543 | } |
579 | |
544 | |
580 | Safefree (PL_tmps_stack); |
545 | Safefree (PL_tmps_stack); |
581 | Safefree (PL_markstack); |
546 | Safefree (PL_markstack); |
582 | Safefree (PL_scopestack); |
547 | Safefree (PL_scopestack); |
583 | Safefree (PL_savestack); |
548 | Safefree (PL_savestack); |
584 | #ifdef PL_retstack |
549 | #if !PERL_VERSION_ATLEAST (5,9,0) |
585 | Safefree (PL_retstack); |
550 | Safefree (PL_retstack); |
586 | #endif |
551 | #endif |
587 | } |
552 | } |
588 | |
553 | |
589 | static void |
554 | static size_t |
590 | allocate_stack (Coro__State ctx, int alloc) |
555 | coro_rss (struct coro *coro) |
591 | { |
556 | { |
592 | coro_stack *stack; |
557 | size_t rss = sizeof (coro); |
593 | |
558 | |
594 | New (0, stack, 1, coro_stack); |
559 | if (coro->mainstack) |
595 | |
|
|
596 | stack->refcnt = 1; |
|
|
597 | stack->usecnt = 1; |
|
|
598 | stack->gencnt = ctx->gencnt = 0; |
|
|
599 | |
|
|
600 | if (alloc) |
|
|
601 | { |
560 | { |
602 | #if HAVE_MMAP |
561 | if (coro->flags & CF_RUNNING) |
603 | stack->ssize = STACKSIZE * sizeof (long); /* mmap should do allocate-on-write for us */ |
|
|
604 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
605 | if (stack->sptr == (void *)-1) |
|
|
606 | #endif |
|
|
607 | { |
562 | { |
608 | /*FIXME*//*D*//* reasonable stack size! */ |
563 | #define VAR(name,type)coro->name = PL_ ## name; |
609 | stack->ssize = - (STACKSIZE * sizeof (long)); |
564 | # include "state.h" |
610 | New (0, stack->sptr, STACKSIZE, long); |
565 | #undef VAR |
611 | } |
566 | } |
612 | } |
|
|
613 | else |
|
|
614 | stack->sptr = 0; |
|
|
615 | |
567 | |
616 | ctx->stack = stack; |
568 | rss += sizeof (coro->curstackinfo); |
617 | } |
569 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
570 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
571 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
|
|
572 | rss += coro->tmps_max * sizeof (SV *); |
|
|
573 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
|
|
574 | rss += coro->scopestack_max * sizeof (I32); |
|
|
575 | rss += coro->savestack_max * sizeof (ANY); |
618 | |
576 | |
619 | static void |
577 | #if !PERL_VERSION_ATLEAST (5,9,0) |
620 | deallocate_stack (Coro__State ctx) |
578 | rss += coro->retstack_max * sizeof (OP *); |
621 | { |
579 | #endif |
622 | coro_stack *stack = ctx->stack; |
|
|
623 | |
|
|
624 | ctx->stack = 0; |
|
|
625 | |
|
|
626 | if (stack) |
|
|
627 | { |
580 | } |
628 | if (!--stack->refcnt) |
|
|
629 | { |
|
|
630 | #ifdef HAVE_MMAP |
|
|
631 | if (stack->ssize > 0 && stack->sptr) |
|
|
632 | munmap (stack->sptr, stack->ssize); |
|
|
633 | else |
|
|
634 | #endif |
|
|
635 | Safefree (stack->sptr); |
|
|
636 | |
581 | |
637 | Safefree (stack); |
582 | return rss; |
638 | } |
|
|
639 | else if (ctx->gencnt == stack->gencnt) |
|
|
640 | --stack->usecnt; |
|
|
641 | } |
|
|
642 | } |
583 | } |
643 | |
584 | |
|
|
585 | /** coroutine stack handling ************************************************/ |
|
|
586 | |
644 | static void |
587 | static void |
645 | setup_coro (void *arg) |
588 | setup_coro (pTHX_ struct coro *coro) |
646 | { |
589 | { |
647 | /* |
590 | /* |
648 | * emulate part of the perl startup here. |
591 | * emulate part of the perl startup here. |
649 | */ |
592 | */ |
|
|
593 | coro_init_stacks (aTHX); |
|
|
594 | |
|
|
595 | PL_curcop = &PL_compiling; |
|
|
596 | PL_in_eval = EVAL_NULL; |
|
|
597 | PL_comppad = 0; |
|
|
598 | PL_curpm = 0; |
|
|
599 | PL_localizing = 0; |
|
|
600 | PL_dirty = 0; |
|
|
601 | PL_restartop = 0; |
|
|
602 | |
|
|
603 | { |
|
|
604 | dSP; |
|
|
605 | LOGOP myop; |
|
|
606 | |
|
|
607 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
608 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
609 | |
|
|
610 | Zero (&myop, 1, LOGOP); |
|
|
611 | myop.op_next = Nullop; |
|
|
612 | myop.op_flags = OPf_WANT_VOID; |
|
|
613 | |
|
|
614 | PUSHMARK (SP); |
|
|
615 | XPUSHs (av_shift (GvAV (PL_defgv))); |
|
|
616 | PUTBACK; |
|
|
617 | PL_op = (OP *)&myop; |
|
|
618 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
619 | SPAGAIN; |
|
|
620 | } |
|
|
621 | |
|
|
622 | ENTER; /* necessary e.g. for dounwind */ |
|
|
623 | } |
|
|
624 | |
|
|
625 | static void |
|
|
626 | free_coro_mortal (pTHX) |
|
|
627 | { |
|
|
628 | if (coro_mortal) |
|
|
629 | { |
|
|
630 | SvREFCNT_dec (coro_mortal); |
|
|
631 | coro_mortal = 0; |
|
|
632 | } |
|
|
633 | } |
|
|
634 | |
|
|
635 | static void |
|
|
636 | do_trace (pTHX) |
|
|
637 | { |
|
|
638 | if (PL_curcop != &PL_compiling) |
|
|
639 | { |
|
|
640 | runops_proc_t old_runops = PL_runops; |
|
|
641 | dSP; |
|
|
642 | ENTER; |
|
|
643 | SAVETMPS; |
|
|
644 | PUSHMARK (SP); |
|
|
645 | PUTBACK; |
|
|
646 | PL_runops = RUNOPS_DEFAULT; |
|
|
647 | call_pv ("Coro::_do_trace", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD | G_NOARGS); |
|
|
648 | PL_runops = old_runops; |
|
|
649 | SPAGAIN; |
|
|
650 | FREETMPS; |
|
|
651 | LEAVE; |
|
|
652 | PUTBACK; |
|
|
653 | } |
|
|
654 | } |
|
|
655 | |
|
|
656 | static int |
|
|
657 | runops_coro (pTHX) |
|
|
658 | { |
|
|
659 | COP *oldcop = 0; |
|
|
660 | |
|
|
661 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
662 | { |
|
|
663 | PERL_ASYNC_CHECK (); |
|
|
664 | |
|
|
665 | if (oldcop != PL_curcop) |
|
|
666 | { |
|
|
667 | oldcop = PL_curcop; |
|
|
668 | do_trace (aTHX); |
|
|
669 | } |
|
|
670 | } |
|
|
671 | |
|
|
672 | TAINT_NOT; |
|
|
673 | return 0; |
|
|
674 | } |
|
|
675 | |
|
|
676 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
677 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
678 | /* during execution of a perl program */ |
|
|
679 | static void NOINLINE |
|
|
680 | prepare_cctx (pTHX_ coro_cctx *cctx) |
|
|
681 | { |
|
|
682 | dSP; |
|
|
683 | LOGOP myop; |
|
|
684 | |
|
|
685 | PL_top_env = &PL_start_env; |
|
|
686 | |
|
|
687 | if (cctx->flags & CC_TRACE) |
|
|
688 | PL_runops = runops_coro; |
|
|
689 | |
|
|
690 | Zero (&myop, 1, LOGOP); |
|
|
691 | myop.op_next = PL_op; |
|
|
692 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
|
|
693 | |
|
|
694 | PUSHMARK (SP); |
|
|
695 | EXTEND (SP, 2); |
|
|
696 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
|
|
697 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
|
|
698 | PUTBACK; |
|
|
699 | PL_op = (OP *)&myop; |
|
|
700 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
701 | SPAGAIN; |
|
|
702 | } |
|
|
703 | |
|
|
704 | /* |
|
|
705 | * this is a _very_ stripped down perl interpreter ;) |
|
|
706 | */ |
|
|
707 | static void |
|
|
708 | coro_run (void *arg) |
|
|
709 | { |
650 | dTHX; |
710 | dTHX; |
651 | dSP; |
|
|
652 | Coro__State ctx = (Coro__State)arg; |
|
|
653 | SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); |
|
|
654 | |
711 | |
655 | coro_init_stacks (aTHX); |
712 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
656 | /*PL_curcop = 0;*/ |
713 | UNLOCK; |
657 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
|
|
658 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
659 | GvAV (PL_defgv) = ctx->args; ctx->args = 0; |
|
|
660 | |
714 | |
661 | SPAGAIN; |
715 | /* we now skip the entersub that lead to transfer() */ |
|
|
716 | PL_op = PL_op->op_next; |
662 | |
717 | |
663 | if (ctx->stack) |
718 | /* inject a fake subroutine call to cctx_init */ |
664 | { |
719 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
665 | ctx->cursp = 0; |
|
|
666 | |
720 | |
667 | PUSHMARK(SP); |
721 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
668 | PUTBACK; |
722 | PL_restartop = PL_op; |
669 | (void) call_sv (sub_init, G_VOID|G_NOARGS|G_EVAL); |
723 | perl_run (PL_curinterp); |
670 | |
724 | |
671 | if (SvTRUE (ERRSV)) |
725 | /* |
672 | croak (NULL); |
726 | * If perl-run returns we assume exit() was being called or the coro |
673 | else |
727 | * fell off the end, which seems to be the only valid (non-bug) |
674 | croak ("FATAL: CCTXT coroutine returned!"); |
728 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
729 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
730 | * coroutine as Coro has no such concept |
|
|
731 | */ |
|
|
732 | PL_top_env = main_top_env; |
|
|
733 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
734 | } |
|
|
735 | |
|
|
736 | static coro_cctx * |
|
|
737 | cctx_new () |
|
|
738 | { |
|
|
739 | coro_cctx *cctx; |
|
|
740 | void *stack_start; |
|
|
741 | size_t stack_size; |
|
|
742 | |
|
|
743 | ++cctx_count; |
|
|
744 | |
|
|
745 | Newz (0, cctx, 1, coro_cctx); |
|
|
746 | |
|
|
747 | #if HAVE_MMAP |
|
|
748 | |
|
|
749 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
|
|
750 | /* mmap supposedly does allocate-on-write for us */ |
|
|
751 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
752 | |
|
|
753 | if (cctx->sptr != (void *)-1) |
|
|
754 | { |
|
|
755 | # if CORO_STACKGUARD |
|
|
756 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
757 | # endif |
|
|
758 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
759 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
760 | cctx->flags |= CC_MAPPED; |
675 | } |
761 | } |
676 | else |
762 | else |
677 | { |
763 | #endif |
678 | UNOP myop; |
|
|
679 | |
|
|
680 | PL_op = (OP *)&myop; |
|
|
681 | |
|
|
682 | Zero(&myop, 1, UNOP); |
|
|
683 | myop.op_next = Nullop; |
|
|
684 | myop.op_flags = OPf_WANT_VOID; |
|
|
685 | |
|
|
686 | PUSHMARK(SP); |
|
|
687 | XPUSHs (sub_init); |
|
|
688 | /* |
|
|
689 | * the next line is slightly wrong, as PL_op->op_next |
|
|
690 | * is actually being executed so we skip the first op. |
|
|
691 | * that doesn't matter, though, since it is only |
|
|
692 | * pp_nextstate and we never return... |
|
|
693 | * ah yes, and I don't care anyways ;) |
|
|
694 | */ |
|
|
695 | PUTBACK; |
|
|
696 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
697 | SPAGAIN; |
|
|
698 | |
|
|
699 | ENTER; /* necessary e.g. for dounwind */ |
|
|
700 | } |
764 | { |
701 | } |
765 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
766 | New (0, cctx->sptr, coro_stacksize, long); |
702 | |
767 | |
703 | static void |
768 | if (!cctx->sptr) |
704 | continue_coro (void *arg) |
769 | { |
705 | { |
770 | perror ("FATAL: unable to allocate stack for coroutine"); |
706 | /* |
771 | _exit (EXIT_FAILURE); |
707 | * this is a _very_ stripped down perl interpreter ;) |
772 | } |
708 | */ |
|
|
709 | dTHX; |
|
|
710 | Coro__State ctx = (Coro__State)arg; |
|
|
711 | JMPENV coro_start_env; |
|
|
712 | |
773 | |
713 | PL_top_env = &ctx->start_env; |
774 | stack_start = cctx->sptr; |
|
|
775 | stack_size = cctx->ssize; |
|
|
776 | } |
714 | |
777 | |
715 | ctx->cursp = 0; |
778 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
716 | PL_op = PL_op->op_next; |
779 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
717 | CALLRUNOPS(aTHX); |
|
|
718 | |
780 | |
719 | abort (); |
781 | return cctx; |
720 | } |
782 | } |
721 | |
783 | |
722 | STATIC void |
784 | static void |
|
|
785 | cctx_destroy (coro_cctx *cctx) |
|
|
786 | { |
|
|
787 | if (!cctx) |
|
|
788 | return; |
|
|
789 | |
|
|
790 | --cctx_count; |
|
|
791 | |
|
|
792 | #if CORO_USE_VALGRIND |
|
|
793 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
794 | #endif |
|
|
795 | |
|
|
796 | #if HAVE_MMAP |
|
|
797 | if (cctx->flags & CC_MAPPED) |
|
|
798 | munmap (cctx->sptr, cctx->ssize); |
|
|
799 | else |
|
|
800 | #endif |
|
|
801 | Safefree (cctx->sptr); |
|
|
802 | |
|
|
803 | Safefree (cctx); |
|
|
804 | } |
|
|
805 | |
|
|
806 | static coro_cctx * |
|
|
807 | cctx_get (pTHX) |
|
|
808 | { |
|
|
809 | while (cctx_first) |
|
|
810 | { |
|
|
811 | coro_cctx *cctx = cctx_first; |
|
|
812 | cctx_first = cctx->next; |
|
|
813 | --cctx_idle; |
|
|
814 | |
|
|
815 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
|
|
816 | return cctx; |
|
|
817 | |
|
|
818 | cctx_destroy (cctx); |
|
|
819 | } |
|
|
820 | |
|
|
821 | return cctx_new (); |
|
|
822 | } |
|
|
823 | |
|
|
824 | static void |
|
|
825 | cctx_put (coro_cctx *cctx) |
|
|
826 | { |
|
|
827 | /* free another cctx if overlimit */ |
|
|
828 | if (cctx_idle >= MAX_IDLE_CCTX) |
|
|
829 | { |
|
|
830 | coro_cctx *first = cctx_first; |
|
|
831 | cctx_first = first->next; |
|
|
832 | --cctx_idle; |
|
|
833 | |
|
|
834 | cctx_destroy (first); |
|
|
835 | } |
|
|
836 | |
|
|
837 | ++cctx_idle; |
|
|
838 | cctx->next = cctx_first; |
|
|
839 | cctx_first = cctx; |
|
|
840 | } |
|
|
841 | |
|
|
842 | /** coroutine switching *****************************************************/ |
|
|
843 | |
|
|
844 | /* never call directly, always through the coro_state_transfer global variable */ |
|
|
845 | static void NOINLINE |
723 | transfer (pTHX_ struct coro *prev, struct coro *next, int flags) |
846 | transfer (pTHX_ struct coro *prev, struct coro *next) |
724 | { |
847 | { |
725 | dSTACKLEVEL; |
848 | dSTACKLEVEL; |
726 | |
849 | |
|
|
850 | /* sometimes transfer is only called to set idle_sp */ |
|
|
851 | if (!next) |
|
|
852 | { |
|
|
853 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
|
|
854 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
|
|
855 | } |
727 | if (prev != next) |
856 | else if (prev != next) |
728 | { |
857 | { |
729 | if (next->mainstack) |
858 | coro_cctx *prev__cctx; |
|
|
859 | |
|
|
860 | if (prev->flags & CF_NEW) |
730 | { |
861 | { |
731 | LOCK; |
862 | /* create a new empty context */ |
732 | SAVE (prev, flags); |
863 | Newz (0, prev->cctx, 1, coro_cctx); |
733 | LOAD (next); |
864 | prev->flags &= ~CF_NEW; |
734 | UNLOCK; |
865 | prev->flags |= CF_RUNNING; |
735 | |
|
|
736 | /* mark this state as in-use */ |
|
|
737 | next->mainstack = 0; |
|
|
738 | next->tmps_ix = -2; |
|
|
739 | |
|
|
740 | /* stacklevel changed? if yes, grab the stack for us! */ |
|
|
741 | if (flags & TRANSFER_SAVE_CCTXT) |
|
|
742 | { |
|
|
743 | if (!prev->stack) |
|
|
744 | allocate_stack (prev, 0); |
|
|
745 | else if (prev->cursp != stacklevel |
|
|
746 | && prev->stack->usecnt > 1) |
|
|
747 | { |
|
|
748 | prev->gencnt = ++prev->stack->gencnt; |
|
|
749 | prev->stack->usecnt = 1; |
|
|
750 | } |
|
|
751 | |
|
|
752 | /* has our stack been invalidated? */ |
|
|
753 | if (next->stack && next->stack->gencnt != next->gencnt) |
|
|
754 | { |
|
|
755 | deallocate_stack (next); |
|
|
756 | allocate_stack (next, 1); |
|
|
757 | coro_create (&(next->stack->cctx), |
|
|
758 | continue_coro, (void *)next, |
|
|
759 | next->stack->sptr, labs (next->stack->ssize)); |
|
|
760 | } |
|
|
761 | |
|
|
762 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
763 | prev->cursp = stacklevel; |
|
|
764 | /* don't add any code here */ |
|
|
765 | } |
|
|
766 | else |
|
|
767 | next->cursp = stacklevel; |
|
|
768 | } |
866 | } |
769 | else if (next->tmps_ix == -2) |
867 | |
770 | croak ("tried to transfer to running coroutine"); |
868 | /*TODO: must not croak here */ |
|
|
869 | if (!prev->flags & CF_RUNNING) |
|
|
870 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
871 | |
|
|
872 | if (next->flags & CF_RUNNING) |
|
|
873 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
874 | |
|
|
875 | if (next->flags & CF_DESTROYED) |
|
|
876 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
877 | |
|
|
878 | prev->flags &= ~CF_RUNNING; |
|
|
879 | next->flags |= CF_RUNNING; |
|
|
880 | |
|
|
881 | LOCK; |
|
|
882 | |
|
|
883 | if (next->flags & CF_NEW) |
|
|
884 | { |
|
|
885 | /* need to start coroutine */ |
|
|
886 | next->flags &= ~CF_NEW; |
|
|
887 | /* first get rid of the old state */ |
|
|
888 | save_perl (aTHX_ prev); |
|
|
889 | /* setup coroutine call */ |
|
|
890 | setup_coro (aTHX_ next); |
|
|
891 | } |
771 | else |
892 | else |
772 | { |
893 | { |
773 | LOCK; |
894 | /* coroutine already started */ |
774 | SAVE (prev, -1); /* first get rid of the old state */ |
895 | save_perl (aTHX_ prev); |
775 | UNLOCK; |
896 | load_perl (aTHX_ next); |
776 | |
|
|
777 | if (flags & TRANSFER_SAVE_CCTXT) |
|
|
778 | { |
|
|
779 | if (!prev->stack) |
|
|
780 | allocate_stack (prev, 0); |
|
|
781 | |
|
|
782 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
|
|
783 | { |
|
|
784 | PL_top_env = &next->start_env; |
|
|
785 | |
|
|
786 | setup_coro (next); |
|
|
787 | next->cursp = stacklevel; |
|
|
788 | |
|
|
789 | prev->stack->refcnt++; |
|
|
790 | prev->stack->usecnt++; |
|
|
791 | next->stack = prev->stack; |
|
|
792 | next->gencnt = prev->gencnt; |
|
|
793 | } |
|
|
794 | else |
|
|
795 | { |
|
|
796 | assert (!next->stack); |
|
|
797 | allocate_stack (next, 1); |
|
|
798 | coro_create (&(next->stack->cctx), |
|
|
799 | setup_coro, (void *)next, |
|
|
800 | next->stack->sptr, labs (next->stack->ssize)); |
|
|
801 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
802 | prev->cursp = stacklevel; |
|
|
803 | /* don't add any code here */ |
|
|
804 | } |
|
|
805 | } |
|
|
806 | else |
|
|
807 | { |
|
|
808 | setup_coro (next); |
|
|
809 | next->cursp = stacklevel; |
|
|
810 | } |
|
|
811 | } |
897 | } |
812 | } |
|
|
813 | |
898 | |
814 | LOCK; |
899 | prev__cctx = prev->cctx; |
815 | if (coro_mortal) |
900 | |
816 | { |
901 | /* possibly "free" the cctx */ |
817 | SvREFCNT_dec (coro_mortal); |
902 | if (prev__cctx->idle_sp == STACKLEVEL) |
818 | coro_mortal = 0; |
903 | { |
819 | } |
904 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
|
|
905 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
|
|
906 | |
|
|
907 | prev->cctx = 0; |
|
|
908 | |
|
|
909 | cctx_put (prev__cctx); |
|
|
910 | } |
|
|
911 | |
|
|
912 | if (!next->cctx) |
|
|
913 | next->cctx = cctx_get (aTHX); |
|
|
914 | |
|
|
915 | if (prev__cctx != next->cctx) |
|
|
916 | { |
|
|
917 | prev__cctx->top_env = PL_top_env; |
|
|
918 | PL_top_env = next->cctx->top_env; |
|
|
919 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
|
|
920 | } |
|
|
921 | |
|
|
922 | free_coro_mortal (aTHX); |
820 | UNLOCK; |
923 | UNLOCK; |
|
|
924 | } |
821 | } |
925 | } |
822 | |
926 | |
823 | #define SV_CORO(sv,func) \ |
927 | struct transfer_args |
824 | do { \ |
928 | { |
825 | if (SvROK (sv)) \ |
929 | struct coro *prev, *next; |
826 | sv = SvRV (sv); \ |
930 | }; |
827 | \ |
|
|
828 | if (SvTYPE (sv) == SVt_PVHV) \ |
|
|
829 | { \ |
|
|
830 | HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ |
|
|
831 | \ |
|
|
832 | if (!he) \ |
|
|
833 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ |
|
|
834 | \ |
|
|
835 | (sv) = SvRV (HeVAL(he)); \ |
|
|
836 | } \ |
|
|
837 | \ |
|
|
838 | /* must also be changed inside Coro::Cont::yield */ \ |
|
|
839 | if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \ |
|
|
840 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
|
|
841 | \ |
|
|
842 | } while(0) |
|
|
843 | |
931 | |
844 | #define SvSTATE(sv) (struct coro *)SvIV (sv) |
932 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
845 | |
933 | |
|
|
934 | /** high level stuff ********************************************************/ |
|
|
935 | |
846 | static void |
936 | static int |
|
|
937 | coro_state_destroy (pTHX_ struct coro *coro) |
|
|
938 | { |
|
|
939 | if (coro->flags & CF_DESTROYED) |
|
|
940 | return 0; |
|
|
941 | |
|
|
942 | coro->flags |= CF_DESTROYED; |
|
|
943 | |
|
|
944 | if (coro->flags & CF_READY) |
|
|
945 | { |
|
|
946 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
947 | /* alternative: look through all ready queues and remove the coro */ |
|
|
948 | LOCK; |
|
|
949 | --coro_nready; |
|
|
950 | UNLOCK; |
|
|
951 | } |
|
|
952 | else |
|
|
953 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
|
|
954 | |
|
|
955 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
956 | { |
|
|
957 | struct coro temp; |
|
|
958 | |
|
|
959 | assert (!(coro->flags & CF_RUNNING)); |
|
|
960 | |
|
|
961 | Zero (&temp, 1, struct coro); |
|
|
962 | temp.save = CORO_SAVE_ALL; |
|
|
963 | |
|
|
964 | if (coro->flags & CF_RUNNING) |
|
|
965 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
966 | |
|
|
967 | save_perl (aTHX_ &temp); |
|
|
968 | load_perl (aTHX_ coro); |
|
|
969 | |
|
|
970 | coro_destroy_stacks (aTHX); |
|
|
971 | |
|
|
972 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
|
|
973 | |
|
|
974 | coro->mainstack = 0; |
|
|
975 | } |
|
|
976 | |
|
|
977 | cctx_destroy (coro->cctx); |
|
|
978 | SvREFCNT_dec (coro->args); |
|
|
979 | |
|
|
980 | if (coro->next) coro->next->prev = coro->prev; |
|
|
981 | if (coro->prev) coro->prev->next = coro->next; |
|
|
982 | if (coro == coro_first) coro_first = coro->next; |
|
|
983 | |
|
|
984 | return 1; |
|
|
985 | } |
|
|
986 | |
|
|
987 | static int |
|
|
988 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
|
|
989 | { |
|
|
990 | struct coro *coro = (struct coro *)mg->mg_ptr; |
|
|
991 | mg->mg_ptr = 0; |
|
|
992 | |
|
|
993 | coro->hv = 0; |
|
|
994 | |
|
|
995 | if (--coro->refcnt < 0) |
|
|
996 | { |
|
|
997 | coro_state_destroy (aTHX_ coro); |
|
|
998 | Safefree (coro); |
|
|
999 | } |
|
|
1000 | |
|
|
1001 | return 0; |
|
|
1002 | } |
|
|
1003 | |
|
|
1004 | static int |
|
|
1005 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
|
|
1006 | { |
|
|
1007 | struct coro *coro = (struct coro *)mg->mg_ptr; |
|
|
1008 | |
|
|
1009 | ++coro->refcnt; |
|
|
1010 | |
|
|
1011 | return 0; |
|
|
1012 | } |
|
|
1013 | |
|
|
1014 | static MGVTBL coro_state_vtbl = { |
|
|
1015 | 0, 0, 0, 0, |
|
|
1016 | coro_state_free, |
|
|
1017 | 0, |
|
|
1018 | #ifdef MGf_DUP |
|
|
1019 | coro_state_dup, |
|
|
1020 | #else |
|
|
1021 | # define MGf_DUP 0 |
|
|
1022 | #endif |
|
|
1023 | }; |
|
|
1024 | |
|
|
1025 | static struct coro * |
|
|
1026 | SvSTATE_ (pTHX_ SV *coro) |
|
|
1027 | { |
|
|
1028 | HV *stash; |
|
|
1029 | MAGIC *mg; |
|
|
1030 | |
|
|
1031 | if (SvROK (coro)) |
|
|
1032 | coro = SvRV (coro); |
|
|
1033 | |
|
|
1034 | stash = SvSTASH (coro); |
|
|
1035 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
1036 | { |
|
|
1037 | /* very slow, but rare, check */ |
|
|
1038 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
1039 | croak ("Coro::State object required"); |
|
|
1040 | } |
|
|
1041 | |
|
|
1042 | mg = CORO_MAGIC (coro); |
|
|
1043 | return (struct coro *)mg->mg_ptr; |
|
|
1044 | } |
|
|
1045 | |
|
|
1046 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
1047 | |
|
|
1048 | static void |
|
|
1049 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
|
|
1050 | { |
|
|
1051 | ta->prev = SvSTATE (prev_sv); |
|
|
1052 | ta->next = SvSTATE (next_sv); |
|
|
1053 | } |
|
|
1054 | |
|
|
1055 | static void |
847 | api_transfer(pTHX_ SV *prev, SV *next, int flags) |
1056 | api_transfer (SV *prev_sv, SV *next_sv) |
848 | { |
1057 | { |
849 | SV_CORO (prev, "Coro::transfer"); |
1058 | dTHX; |
850 | SV_CORO (next, "Coro::transfer"); |
1059 | struct transfer_args ta; |
851 | |
1060 | |
852 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
1061 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
|
|
1062 | TRANSFER (ta); |
|
|
1063 | } |
|
|
1064 | |
|
|
1065 | static int |
|
|
1066 | api_save (SV *coro_sv, int new_save) |
|
|
1067 | { |
|
|
1068 | dTHX; |
|
|
1069 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1070 | int old_save = coro->save; |
|
|
1071 | |
|
|
1072 | if (new_save >= 0) |
|
|
1073 | coro->save = new_save; |
|
|
1074 | |
|
|
1075 | return old_save; |
853 | } |
1076 | } |
854 | |
1077 | |
855 | /** Coro ********************************************************************/ |
1078 | /** Coro ********************************************************************/ |
856 | |
1079 | |
857 | #define PRIO_MAX 3 |
|
|
858 | #define PRIO_HIGH 1 |
|
|
859 | #define PRIO_NORMAL 0 |
|
|
860 | #define PRIO_LOW -1 |
|
|
861 | #define PRIO_IDLE -3 |
|
|
862 | #define PRIO_MIN -4 |
|
|
863 | |
|
|
864 | /* for Coro.pm */ |
|
|
865 | static GV *coro_current, *coro_idle; |
|
|
866 | static AV *coro_ready[PRIO_MAX-PRIO_MIN+1]; |
|
|
867 | static int coro_nready; |
|
|
868 | |
|
|
869 | static void |
1080 | static void |
870 | coro_enq (pTHX_ SV *sv) |
1081 | coro_enq (pTHX_ SV *coro_sv) |
871 | { |
1082 | { |
872 | if (SvTYPE (sv) == SVt_PVHV) |
|
|
873 | { |
|
|
874 | SV **xprio = hv_fetch ((HV *)sv, "prio", 4, 0); |
|
|
875 | int prio = xprio ? SvIV (*xprio) : PRIO_NORMAL; |
|
|
876 | |
|
|
877 | prio = prio > PRIO_MAX ? PRIO_MAX |
|
|
878 | : prio < PRIO_MIN ? PRIO_MIN |
|
|
879 | : prio; |
|
|
880 | |
|
|
881 | av_push (coro_ready [prio - PRIO_MIN], sv); |
1083 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
882 | coro_nready++; |
|
|
883 | |
|
|
884 | return; |
|
|
885 | } |
|
|
886 | |
|
|
887 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
888 | } |
1084 | } |
889 | |
1085 | |
890 | static SV * |
1086 | static SV * |
891 | coro_deq (pTHX_ int min_prio) |
1087 | coro_deq (pTHX_ int min_prio) |
892 | { |
1088 | { |
… | |
… | |
895 | min_prio -= PRIO_MIN; |
1091 | min_prio -= PRIO_MIN; |
896 | if (min_prio < 0) |
1092 | if (min_prio < 0) |
897 | min_prio = 0; |
1093 | min_prio = 0; |
898 | |
1094 | |
899 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1095 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
900 | if (av_len (coro_ready[prio]) >= 0) |
1096 | if (AvFILLp (coro_ready [prio]) >= 0) |
901 | { |
|
|
902 | coro_nready--; |
|
|
903 | return av_shift (coro_ready[prio]); |
1097 | return av_shift (coro_ready [prio]); |
904 | } |
|
|
905 | |
1098 | |
906 | return 0; |
1099 | return 0; |
907 | } |
1100 | } |
908 | |
1101 | |
909 | static void |
1102 | static int |
910 | api_ready (SV *coro) |
1103 | api_ready (SV *coro_sv) |
911 | { |
1104 | { |
912 | dTHX; |
1105 | dTHX; |
|
|
1106 | struct coro *coro; |
913 | |
1107 | |
914 | if (SvROK (coro)) |
1108 | if (SvROK (coro_sv)) |
915 | coro = SvRV (coro); |
1109 | coro_sv = SvRV (coro_sv); |
|
|
1110 | |
|
|
1111 | coro = SvSTATE (coro_sv); |
|
|
1112 | |
|
|
1113 | if (coro->flags & CF_READY) |
|
|
1114 | return 0; |
|
|
1115 | |
|
|
1116 | coro->flags |= CF_READY; |
916 | |
1117 | |
917 | LOCK; |
1118 | LOCK; |
918 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
1119 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1120 | ++coro_nready; |
919 | UNLOCK; |
1121 | UNLOCK; |
|
|
1122 | |
|
|
1123 | return 1; |
|
|
1124 | } |
|
|
1125 | |
|
|
1126 | static int |
|
|
1127 | api_is_ready (SV *coro_sv) |
|
|
1128 | { |
|
|
1129 | dTHX; |
|
|
1130 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1131 | } |
|
|
1132 | |
|
|
1133 | static void |
|
|
1134 | prepare_schedule (pTHX_ struct transfer_args *ta) |
|
|
1135 | { |
|
|
1136 | SV *prev_sv, *next_sv; |
|
|
1137 | |
|
|
1138 | for (;;) |
|
|
1139 | { |
|
|
1140 | LOCK; |
|
|
1141 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1142 | |
|
|
1143 | /* nothing to schedule: call the idle handler */ |
|
|
1144 | if (!next_sv) |
|
|
1145 | { |
|
|
1146 | dSP; |
|
|
1147 | UNLOCK; |
|
|
1148 | |
|
|
1149 | ENTER; |
|
|
1150 | SAVETMPS; |
|
|
1151 | |
|
|
1152 | PUSHMARK (SP); |
|
|
1153 | PUTBACK; |
|
|
1154 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1155 | |
|
|
1156 | FREETMPS; |
|
|
1157 | LEAVE; |
|
|
1158 | continue; |
|
|
1159 | } |
|
|
1160 | |
|
|
1161 | ta->next = SvSTATE (next_sv); |
|
|
1162 | |
|
|
1163 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1164 | if (ta->next->flags & CF_DESTROYED) |
|
|
1165 | { |
|
|
1166 | UNLOCK; |
|
|
1167 | SvREFCNT_dec (next_sv); |
|
|
1168 | /* coro_nready is already taken care of by destroy */ |
|
|
1169 | continue; |
|
|
1170 | } |
|
|
1171 | |
|
|
1172 | --coro_nready; |
|
|
1173 | UNLOCK; |
|
|
1174 | break; |
|
|
1175 | } |
|
|
1176 | |
|
|
1177 | /* free this only after the transfer */ |
|
|
1178 | prev_sv = SvRV (coro_current); |
|
|
1179 | SvRV_set (coro_current, next_sv); |
|
|
1180 | ta->prev = SvSTATE (prev_sv); |
|
|
1181 | |
|
|
1182 | assert (ta->next->flags & CF_READY); |
|
|
1183 | ta->next->flags &= ~CF_READY; |
|
|
1184 | |
|
|
1185 | LOCK; |
|
|
1186 | free_coro_mortal (aTHX); |
|
|
1187 | coro_mortal = prev_sv; |
|
|
1188 | UNLOCK; |
|
|
1189 | } |
|
|
1190 | |
|
|
1191 | static void |
|
|
1192 | prepare_cede (pTHX_ struct transfer_args *ta) |
|
|
1193 | { |
|
|
1194 | api_ready (coro_current); |
|
|
1195 | prepare_schedule (aTHX_ ta); |
|
|
1196 | } |
|
|
1197 | |
|
|
1198 | static int |
|
|
1199 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1200 | { |
|
|
1201 | if (coro_nready) |
|
|
1202 | { |
|
|
1203 | SV *prev = SvRV (coro_current); |
|
|
1204 | prepare_schedule (aTHX_ ta); |
|
|
1205 | api_ready (prev); |
|
|
1206 | return 1; |
|
|
1207 | } |
|
|
1208 | else |
|
|
1209 | return 0; |
920 | } |
1210 | } |
921 | |
1211 | |
922 | static void |
1212 | static void |
923 | api_schedule (void) |
1213 | api_schedule (void) |
924 | { |
1214 | { |
925 | dTHX; |
1215 | dTHX; |
|
|
1216 | struct transfer_args ta; |
926 | |
1217 | |
927 | SV *prev, *next; |
1218 | prepare_schedule (aTHX_ &ta); |
928 | |
1219 | TRANSFER (ta); |
929 | LOCK; |
|
|
930 | |
|
|
931 | prev = SvRV (GvSV (coro_current)); |
|
|
932 | next = coro_deq (aTHX_ PRIO_MIN); |
|
|
933 | |
|
|
934 | if (!next) |
|
|
935 | next = SvREFCNT_inc (SvRV (GvSV (coro_idle))); |
|
|
936 | |
|
|
937 | /* free this only after the transfer */ |
|
|
938 | coro_mortal = prev; |
|
|
939 | SV_CORO (prev, "Coro::schedule"); |
|
|
940 | |
|
|
941 | SvRV (GvSV (coro_current)) = next; |
|
|
942 | |
|
|
943 | SV_CORO (next, "Coro::schedule"); |
|
|
944 | |
|
|
945 | UNLOCK; |
|
|
946 | |
|
|
947 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), |
|
|
948 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
|
|
949 | } |
1220 | } |
950 | |
1221 | |
951 | static void |
1222 | static int |
952 | api_cede (void) |
1223 | api_cede (void) |
953 | { |
1224 | { |
954 | dTHX; |
1225 | dTHX; |
|
|
1226 | struct transfer_args ta; |
955 | |
1227 | |
956 | LOCK; |
1228 | prepare_cede (aTHX_ &ta); |
957 | coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
958 | UNLOCK; |
|
|
959 | |
1229 | |
960 | api_schedule (); |
1230 | if (ta.prev != ta.next) |
|
|
1231 | { |
|
|
1232 | TRANSFER (ta); |
|
|
1233 | return 1; |
|
|
1234 | } |
|
|
1235 | else |
|
|
1236 | return 0; |
|
|
1237 | } |
|
|
1238 | |
|
|
1239 | static int |
|
|
1240 | api_cede_notself (void) |
|
|
1241 | { |
|
|
1242 | dTHX; |
|
|
1243 | struct transfer_args ta; |
|
|
1244 | |
|
|
1245 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1246 | { |
|
|
1247 | TRANSFER (ta); |
|
|
1248 | return 1; |
|
|
1249 | } |
|
|
1250 | else |
|
|
1251 | return 0; |
961 | } |
1252 | } |
962 | |
1253 | |
963 | MODULE = Coro::State PACKAGE = Coro::State |
1254 | MODULE = Coro::State PACKAGE = Coro::State |
964 | |
1255 | |
965 | PROTOTYPES: ENABLE |
1256 | PROTOTYPES: DISABLE |
966 | |
1257 | |
967 | BOOT: |
1258 | BOOT: |
968 | { /* {} necessary for stoopid perl-5.6.x */ |
1259 | { |
969 | #ifdef USE_ITHREADS |
1260 | #ifdef USE_ITHREADS |
970 | MUTEX_INIT (&coro_mutex); |
1261 | MUTEX_INIT (&coro_mutex); |
971 | #endif |
1262 | #endif |
|
|
1263 | BOOT_PAGESIZE; |
972 | |
1264 | |
973 | ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); |
|
|
974 | PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); |
|
|
975 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1265 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
976 | |
1266 | |
977 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1267 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
978 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1268 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
979 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1269 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1270 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1271 | newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH)); |
980 | newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); |
1272 | newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); |
|
|
1273 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
981 | |
1274 | |
982 | main_mainstack = PL_mainstack; |
1275 | main_mainstack = PL_mainstack; |
|
|
1276 | main_top_env = PL_top_env; |
|
|
1277 | |
|
|
1278 | while (main_top_env->je_prev) |
|
|
1279 | main_top_env = main_top_env->je_prev; |
983 | |
1280 | |
984 | coroapi.ver = CORO_API_VERSION; |
1281 | coroapi.ver = CORO_API_VERSION; |
985 | coroapi.transfer = api_transfer; |
1282 | coroapi.transfer = api_transfer; |
986 | } |
|
|
987 | |
1283 | |
988 | Coro::State |
1284 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
989 | _newprocess(args) |
1285 | } |
990 | SV * args |
1286 | |
991 | PROTOTYPE: $ |
1287 | SV * |
|
|
1288 | new (char *klass, ...) |
992 | CODE: |
1289 | CODE: |
993 | Coro__State coro; |
1290 | { |
|
|
1291 | struct coro *coro; |
|
|
1292 | HV *hv; |
|
|
1293 | int i; |
994 | |
1294 | |
995 | if (!SvROK (args) || SvTYPE (SvRV (args)) != SVt_PVAV) |
|
|
996 | croak ("Coro::State::_newprocess expects an arrayref"); |
|
|
997 | |
|
|
998 | Newz (0, coro, 1, struct coro); |
1295 | Newz (0, coro, 1, struct coro); |
|
|
1296 | coro->args = newAV (); |
|
|
1297 | coro->save = CORO_SAVE_DEF; |
|
|
1298 | coro->flags = CF_NEW; |
999 | |
1299 | |
1000 | coro->args = (AV *)SvREFCNT_inc (SvRV (args)); |
1300 | if (coro_first) coro_first->prev = coro; |
1001 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
1301 | coro->next = coro_first; |
1002 | /*coro->stack = 0;*/ |
1302 | coro_first = coro; |
1003 | |
1303 | |
1004 | /* same as JMPENV_BOOTSTRAP */ |
1304 | coro->hv = hv = newHV (); |
1005 | /* we might be able to recycle start_env, but safe is safe */ |
1305 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1006 | /*Zero(&coro->start_env, 1, JMPENV);*/ |
1306 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1007 | coro->start_env.je_ret = -1; |
|
|
1008 | coro->start_env.je_mustcatch = TRUE; |
|
|
1009 | |
1307 | |
1010 | RETVAL = coro; |
1308 | for (i = 1; i < items; i++) |
|
|
1309 | av_push (coro->args, newSVsv (ST (i))); |
|
|
1310 | } |
1011 | OUTPUT: |
1311 | OUTPUT: |
1012 | RETVAL |
1312 | RETVAL |
1013 | |
1313 | |
|
|
1314 | int |
|
|
1315 | save (SV *coro, int new_save = -1) |
|
|
1316 | CODE: |
|
|
1317 | RETVAL = api_save (coro, new_save); |
|
|
1318 | OUTPUT: |
|
|
1319 | RETVAL |
|
|
1320 | |
|
|
1321 | int |
|
|
1322 | save_also (SV *coro_sv, int save_also) |
|
|
1323 | CODE: |
|
|
1324 | { |
|
|
1325 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1326 | RETVAL = coro->save; |
|
|
1327 | coro->save |= save_also; |
|
|
1328 | } |
|
|
1329 | OUTPUT: |
|
|
1330 | RETVAL |
|
|
1331 | |
1014 | void |
1332 | void |
1015 | transfer(prev, next, flags) |
1333 | _set_stacklevel (...) |
1016 | SV *prev |
1334 | ALIAS: |
1017 | SV *next |
1335 | Coro::State::transfer = 1 |
1018 | int flags |
1336 | Coro::schedule = 2 |
1019 | PROTOTYPE: @ |
1337 | Coro::cede = 3 |
|
|
1338 | Coro::cede_notself = 4 |
1020 | CODE: |
1339 | CODE: |
1021 | PUTBACK; |
1340 | { |
1022 | SV_CORO (next, "Coro::transfer"); |
1341 | struct transfer_args ta; |
1023 | SV_CORO (prev, "Coro::transfer"); |
1342 | |
1024 | transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
1343 | switch (ix) |
1025 | SPAGAIN; |
1344 | { |
|
|
1345 | case 0: |
|
|
1346 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1347 | ta.next = 0; |
|
|
1348 | break; |
|
|
1349 | |
|
|
1350 | case 1: |
|
|
1351 | if (items != 2) |
|
|
1352 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
|
|
1353 | |
|
|
1354 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
|
|
1355 | break; |
|
|
1356 | |
|
|
1357 | case 2: |
|
|
1358 | prepare_schedule (aTHX_ &ta); |
|
|
1359 | break; |
|
|
1360 | |
|
|
1361 | case 3: |
|
|
1362 | prepare_cede (aTHX_ &ta); |
|
|
1363 | break; |
|
|
1364 | |
|
|
1365 | case 4: |
|
|
1366 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1367 | XSRETURN_EMPTY; |
|
|
1368 | |
|
|
1369 | break; |
|
|
1370 | } |
|
|
1371 | |
|
|
1372 | BARRIER; |
|
|
1373 | TRANSFER (ta); |
|
|
1374 | |
|
|
1375 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
|
|
1376 | XSRETURN_YES; |
|
|
1377 | } |
|
|
1378 | |
|
|
1379 | bool |
|
|
1380 | _destroy (SV *coro_sv) |
|
|
1381 | CODE: |
|
|
1382 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
|
|
1383 | OUTPUT: |
|
|
1384 | RETVAL |
1026 | |
1385 | |
1027 | void |
1386 | void |
1028 | DESTROY(coro) |
|
|
1029 | Coro::State coro |
|
|
1030 | CODE: |
|
|
1031 | |
|
|
1032 | if (coro->mainstack && coro->mainstack != main_mainstack) |
|
|
1033 | { |
|
|
1034 | struct coro temp; |
|
|
1035 | |
|
|
1036 | PUTBACK; |
|
|
1037 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
|
|
1038 | LOAD (aTHX_ coro); |
|
|
1039 | SPAGAIN; |
|
|
1040 | |
|
|
1041 | destroy_stacks (aTHX); |
|
|
1042 | |
|
|
1043 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
|
|
1044 | SPAGAIN; |
|
|
1045 | |
|
|
1046 | coro->mainstack = 0; |
|
|
1047 | } |
|
|
1048 | |
|
|
1049 | deallocate_stack (coro); |
|
|
1050 | SvREFCNT_dec (coro->args); |
|
|
1051 | Safefree (coro); |
|
|
1052 | |
|
|
1053 | void |
|
|
1054 | _exit(code) |
1387 | _exit (code) |
1055 | int code |
1388 | int code |
1056 | PROTOTYPE: $ |
1389 | PROTOTYPE: $ |
1057 | CODE: |
1390 | CODE: |
1058 | _exit (code); |
1391 | _exit (code); |
1059 | |
1392 | |
1060 | MODULE = Coro::State PACKAGE = Coro::Cont |
1393 | int |
|
|
1394 | cctx_stacksize (int new_stacksize = 0) |
|
|
1395 | CODE: |
|
|
1396 | RETVAL = coro_stacksize; |
|
|
1397 | if (new_stacksize) |
|
|
1398 | coro_stacksize = new_stacksize; |
|
|
1399 | OUTPUT: |
|
|
1400 | RETVAL |
1061 | |
1401 | |
1062 | # this is slightly dirty (should expose a c-level api) |
1402 | int |
|
|
1403 | cctx_count () |
|
|
1404 | CODE: |
|
|
1405 | RETVAL = cctx_count; |
|
|
1406 | OUTPUT: |
|
|
1407 | RETVAL |
|
|
1408 | |
|
|
1409 | int |
|
|
1410 | cctx_idle () |
|
|
1411 | CODE: |
|
|
1412 | RETVAL = cctx_idle; |
|
|
1413 | OUTPUT: |
|
|
1414 | RETVAL |
1063 | |
1415 | |
1064 | void |
1416 | void |
1065 | yield(...) |
1417 | list () |
1066 | PROTOTYPE: @ |
1418 | PPCODE: |
|
|
1419 | { |
|
|
1420 | struct coro *coro; |
|
|
1421 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1422 | if (coro->hv) |
|
|
1423 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1424 | } |
|
|
1425 | |
|
|
1426 | void |
|
|
1427 | call (Coro::State coro, SV *coderef) |
|
|
1428 | ALIAS: |
|
|
1429 | eval = 1 |
|
|
1430 | CODE: |
|
|
1431 | { |
|
|
1432 | if (coro->mainstack) |
|
|
1433 | { |
|
|
1434 | struct coro temp; |
|
|
1435 | Zero (&temp, 1, struct coro); |
|
|
1436 | temp.save = CORO_SAVE_ALL; |
|
|
1437 | |
|
|
1438 | if (!(coro->flags & CF_RUNNING)) |
|
|
1439 | { |
|
|
1440 | save_perl (aTHX_ &temp); |
|
|
1441 | load_perl (aTHX_ coro); |
|
|
1442 | } |
|
|
1443 | |
|
|
1444 | { |
|
|
1445 | dSP; |
|
|
1446 | ENTER; |
|
|
1447 | SAVETMPS; |
|
|
1448 | PUSHMARK (SP); |
|
|
1449 | PUTBACK; |
|
|
1450 | if (ix) |
|
|
1451 | eval_sv (coderef, 0); |
|
|
1452 | else |
|
|
1453 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1454 | SPAGAIN; |
|
|
1455 | FREETMPS; |
|
|
1456 | LEAVE; |
|
|
1457 | PUTBACK; |
|
|
1458 | } |
|
|
1459 | |
|
|
1460 | if (!(coro->flags & CF_RUNNING)) |
|
|
1461 | { |
|
|
1462 | save_perl (aTHX_ coro); |
|
|
1463 | load_perl (aTHX_ &temp); |
|
|
1464 | } |
|
|
1465 | } |
|
|
1466 | } |
|
|
1467 | |
|
|
1468 | SV * |
|
|
1469 | is_ready (Coro::State coro) |
|
|
1470 | PROTOTYPE: $ |
|
|
1471 | ALIAS: |
|
|
1472 | is_ready = CF_READY |
|
|
1473 | is_running = CF_RUNNING |
|
|
1474 | is_new = CF_NEW |
|
|
1475 | is_destroyed = CF_DESTROYED |
|
|
1476 | CODE: |
|
|
1477 | RETVAL = boolSV (coro->flags & ix); |
|
|
1478 | OUTPUT: |
|
|
1479 | RETVAL |
|
|
1480 | |
|
|
1481 | void |
|
|
1482 | trace (Coro::State coro, int enable = 0) |
|
|
1483 | CODE: |
|
|
1484 | if (enable) |
|
|
1485 | { |
|
|
1486 | if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1487 | XSRETURN_EMPTY; |
|
|
1488 | |
|
|
1489 | if (coro->flags & CF_RUNNING) |
|
|
1490 | croak ("cannot enable tracing on running coroutine"); |
|
|
1491 | |
|
|
1492 | if (coro->cctx) |
|
|
1493 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1494 | |
|
|
1495 | coro->cctx = cctx_new (); |
|
|
1496 | coro->cctx->flags |= CC_TRACE; |
|
|
1497 | } |
|
|
1498 | else |
|
|
1499 | if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1500 | { |
|
|
1501 | coro->cctx->flags &= ~CC_TRACE; |
|
|
1502 | coro->cctx->flags |= CC_NOREUSE; |
|
|
1503 | } |
|
|
1504 | |
|
|
1505 | SV * |
|
|
1506 | has_stack (Coro::State coro) |
|
|
1507 | PROTOTYPE: $ |
|
|
1508 | CODE: |
|
|
1509 | RETVAL = boolSV (!!coro->cctx); |
|
|
1510 | OUTPUT: |
|
|
1511 | RETVAL |
|
|
1512 | |
|
|
1513 | IV |
|
|
1514 | rss (Coro::State coro) |
|
|
1515 | PROTOTYPE: $ |
1067 | CODE: |
1516 | CODE: |
1068 | SV *yieldstack; |
1517 | RETVAL = coro_rss (coro); |
1069 | SV *sv; |
1518 | OUTPUT: |
1070 | AV *defav = GvAV (PL_defgv); |
1519 | RETVAL |
1071 | struct coro *prev, *next; |
|
|
1072 | |
1520 | |
1073 | yieldstack = *hv_fetch ( |
|
|
1074 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1075 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1076 | 0 |
|
|
1077 | ); |
|
|
1078 | |
|
|
1079 | /* set up @_ -- ugly */ |
|
|
1080 | av_clear (defav); |
|
|
1081 | av_fill (defav, items - 1); |
|
|
1082 | while (items--) |
|
|
1083 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1084 | |
|
|
1085 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1086 | prev = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); |
|
|
1087 | next = (struct coro *)SvIV ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); |
|
|
1088 | SvREFCNT_dec (sv); |
|
|
1089 | |
|
|
1090 | transfer (aTHX_ prev, next, 0); |
|
|
1091 | |
1521 | |
1092 | MODULE = Coro::State PACKAGE = Coro |
1522 | MODULE = Coro::State PACKAGE = Coro |
1093 | |
1523 | |
1094 | # this is slightly dirty (should expose a c-level api) |
|
|
1095 | |
|
|
1096 | BOOT: |
1524 | BOOT: |
1097 | { |
1525 | { |
1098 | int i; |
1526 | int i; |
|
|
1527 | |
|
|
1528 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1529 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1530 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
|
|
1531 | |
|
|
1532 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1533 | SvREADONLY_on (coro_current); |
|
|
1534 | |
1099 | HV *stash = gv_stashpv ("Coro", TRUE); |
1535 | coro_stash = gv_stashpv ("Coro", TRUE); |
1100 | |
1536 | |
1101 | newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1537 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1102 | newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1538 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1103 | newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1539 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1104 | newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1540 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1105 | newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1541 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1106 | newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1542 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1107 | |
|
|
1108 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1109 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1110 | |
1543 | |
1111 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1544 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1112 | coro_ready[i] = newAV (); |
1545 | coro_ready[i] = newAV (); |
1113 | |
1546 | |
1114 | { |
1547 | { |
1115 | SV *sv = perl_get_sv("Coro::API", 1); |
1548 | SV *sv = perl_get_sv("Coro::API", 1); |
1116 | |
1549 | |
1117 | coroapi.schedule = api_schedule; |
1550 | coroapi.schedule = api_schedule; |
|
|
1551 | coroapi.save = api_save; |
1118 | coroapi.cede = api_cede; |
1552 | coroapi.cede = api_cede; |
|
|
1553 | coroapi.cede_notself = api_cede_notself; |
1119 | coroapi.ready = api_ready; |
1554 | coroapi.ready = api_ready; |
|
|
1555 | coroapi.is_ready = api_is_ready; |
1120 | coroapi.nready = &coro_nready; |
1556 | coroapi.nready = &coro_nready; |
1121 | coroapi.current = coro_current; |
1557 | coroapi.current = coro_current; |
1122 | |
1558 | |
1123 | GCoroAPI = &coroapi; |
1559 | GCoroAPI = &coroapi; |
1124 | sv_setiv(sv, (IV)&coroapi); |
1560 | sv_setiv (sv, (IV)&coroapi); |
1125 | SvREADONLY_on(sv); |
1561 | SvREADONLY_on (sv); |
1126 | } |
1562 | } |
1127 | } |
1563 | } |
1128 | |
1564 | |
1129 | #if !PERL_MICRO |
|
|
1130 | |
|
|
1131 | void |
1565 | void |
1132 | ready(self) |
1566 | _set_current (SV *current) |
1133 | SV * self |
|
|
1134 | PROTOTYPE: $ |
1567 | PROTOTYPE: $ |
1135 | CODE: |
1568 | CODE: |
1136 | api_ready (self); |
1569 | SvREFCNT_dec (SvRV (coro_current)); |
1137 | |
1570 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
1138 | #endif |
|
|
1139 | |
1571 | |
1140 | int |
1572 | int |
|
|
1573 | prio (Coro::State coro, int newprio = 0) |
|
|
1574 | ALIAS: |
|
|
1575 | nice = 1 |
|
|
1576 | CODE: |
|
|
1577 | { |
|
|
1578 | RETVAL = coro->prio; |
|
|
1579 | |
|
|
1580 | if (items > 1) |
|
|
1581 | { |
|
|
1582 | if (ix) |
|
|
1583 | newprio = coro->prio - newprio; |
|
|
1584 | |
|
|
1585 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
|
|
1586 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
|
|
1587 | |
|
|
1588 | coro->prio = newprio; |
|
|
1589 | } |
|
|
1590 | } |
|
|
1591 | OUTPUT: |
|
|
1592 | RETVAL |
|
|
1593 | |
|
|
1594 | SV * |
|
|
1595 | ready (SV *self) |
|
|
1596 | PROTOTYPE: $ |
|
|
1597 | CODE: |
|
|
1598 | RETVAL = boolSV (api_ready (self)); |
|
|
1599 | OUTPUT: |
|
|
1600 | RETVAL |
|
|
1601 | |
|
|
1602 | int |
1141 | nready(...) |
1603 | nready (...) |
1142 | PROTOTYPE: |
1604 | PROTOTYPE: |
1143 | CODE: |
1605 | CODE: |
1144 | RETVAL = coro_nready; |
1606 | RETVAL = coro_nready; |
1145 | OUTPUT: |
1607 | OUTPUT: |
1146 | RETVAL |
1608 | RETVAL |
1147 | |
1609 | |
|
|
1610 | # for async_pool speedup |
1148 | void |
1611 | void |
1149 | schedule(...) |
1612 | _pool_1 (SV *cb) |
1150 | PROTOTYPE: |
|
|
1151 | CODE: |
1613 | CODE: |
1152 | api_schedule (); |
1614 | { |
|
|
1615 | int i, len; |
|
|
1616 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1617 | AV *defav = GvAV (PL_defgv); |
|
|
1618 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1619 | AV *invoke_av; |
|
|
1620 | |
|
|
1621 | if (!invoke) |
|
|
1622 | croak ("\3terminate\2\n"); |
|
|
1623 | |
|
|
1624 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1625 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1626 | |
|
|
1627 | invoke_av = (AV *)SvRV (invoke); |
|
|
1628 | len = av_len (invoke_av); |
|
|
1629 | |
|
|
1630 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1631 | |
|
|
1632 | if (len > 0) |
|
|
1633 | { |
|
|
1634 | av_fill (defav, len - 1); |
|
|
1635 | for (i = 0; i < len; ++i) |
|
|
1636 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1637 | } |
|
|
1638 | |
|
|
1639 | SvREFCNT_dec (invoke); |
|
|
1640 | } |
1153 | |
1641 | |
1154 | void |
1642 | void |
1155 | cede(...) |
1643 | _pool_2 (SV *cb) |
1156 | PROTOTYPE: |
|
|
1157 | CODE: |
1644 | CODE: |
1158 | api_cede (); |
1645 | { |
|
|
1646 | struct coro *coro = SvSTATE (coro_current); |
1159 | |
1647 | |
1160 | # and these are hacks |
1648 | sv_setsv (cb, &PL_sv_undef); |
|
|
1649 | |
|
|
1650 | if (coro_rss (coro) > SvIV (sv_pool_rss) |
|
|
1651 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1652 | croak ("\3terminate\2\n"); |
|
|
1653 | |
|
|
1654 | av_clear (GvAV (PL_defgv)); |
|
|
1655 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1656 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1657 | coro->save = CORO_SAVE_DEF; |
|
|
1658 | coro->prio = 0; |
|
|
1659 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1660 | } |
|
|
1661 | |
|
|
1662 | |
|
|
1663 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
1664 | |
1161 | SV * |
1665 | SV * |
1162 | _aio_get_state () |
1666 | _get_state () |
1163 | CODE: |
1667 | CODE: |
1164 | { |
1668 | { |
1165 | struct { |
1669 | struct io_state *data; |
1166 | int errorno; |
|
|
1167 | int laststype; |
|
|
1168 | int laststatval; |
|
|
1169 | Stat_t statcache; |
|
|
1170 | } data; |
|
|
1171 | |
1670 | |
|
|
1671 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1672 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1673 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1674 | SvPOK_only (RETVAL); |
|
|
1675 | |
1172 | data.errorno = errno; |
1676 | data->errorno = errno; |
1173 | data.laststype = PL_laststype; |
1677 | data->laststype = PL_laststype; |
1174 | data.laststatval = PL_laststatval; |
1678 | data->laststatval = PL_laststatval; |
1175 | data.statcache = PL_statcache; |
1679 | data->statcache = PL_statcache; |
1176 | |
|
|
1177 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1178 | } |
1680 | } |
1179 | OUTPUT: |
1681 | OUTPUT: |
1180 | RETVAL |
1682 | RETVAL |
1181 | |
1683 | |
1182 | void |
1684 | void |
1183 | _aio_set_state (char *data_) |
1685 | _set_state (char *data_) |
1184 | PROTOTYPE: $ |
1686 | PROTOTYPE: $ |
1185 | CODE: |
1687 | CODE: |
1186 | { |
1688 | { |
1187 | struct { |
1689 | struct io_state *data = (void *)data_; |
1188 | int errorno; |
|
|
1189 | int laststype; |
|
|
1190 | int laststatval; |
|
|
1191 | Stat_t statcache; |
|
|
1192 | } *data = (void *)data_; |
|
|
1193 | |
1690 | |
1194 | errno = data->errorno; |
1691 | errno = data->errorno; |
1195 | PL_laststype = data->laststype; |
1692 | PL_laststype = data->laststype; |
1196 | PL_laststatval = data->laststatval; |
1693 | PL_laststatval = data->laststatval; |
1197 | PL_statcache = data->statcache; |
1694 | PL_statcache = data->statcache; |
1198 | } |
1695 | } |
|
|
1696 | |