1 |
root |
1.63 |
#include "libcoro/coro.c" |
2 |
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3 |
root |
1.146 |
#define PERL_NO_GET_CONTEXT |
4 |
root |
1.198 |
#define PERL_EXT |
5 |
root |
1.146 |
|
6 |
root |
1.1 |
#include "EXTERN.h" |
7 |
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#include "perl.h" |
8 |
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#include "XSUB.h" |
9 |
root |
1.246 |
#include "perliol.h" |
10 |
root |
1.1 |
|
11 |
pcg |
1.46 |
#include "patchlevel.h" |
12 |
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13 |
root |
1.127 |
#include <stdio.h> |
14 |
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#include <errno.h> |
15 |
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#include <assert.h> |
16 |
root |
1.231 |
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17 |
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#ifdef WIN32 |
18 |
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# undef setjmp |
19 |
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# undef longjmp |
20 |
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# undef _exit |
21 |
root |
1.232 |
# define setjmp _setjmp // deep magic, don't ask |
22 |
root |
1.231 |
#else |
23 |
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# include <inttypes.h> /* most portable stdint.h */ |
24 |
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#endif |
25 |
root |
1.127 |
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26 |
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#ifdef HAVE_MMAP |
27 |
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# include <unistd.h> |
28 |
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# include <sys/mman.h> |
29 |
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# ifndef MAP_ANONYMOUS |
30 |
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# ifdef MAP_ANON |
31 |
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# define MAP_ANONYMOUS MAP_ANON |
32 |
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# else |
33 |
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# undef HAVE_MMAP |
34 |
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# endif |
35 |
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# endif |
36 |
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# include <limits.h> |
37 |
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# ifndef PAGESIZE |
38 |
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# define PAGESIZE pagesize |
39 |
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# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
40 |
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static long pagesize; |
41 |
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# else |
42 |
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# define BOOT_PAGESIZE (void)0 |
43 |
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# endif |
44 |
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#else |
45 |
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# define PAGESIZE 0 |
46 |
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# define BOOT_PAGESIZE (void)0 |
47 |
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#endif |
48 |
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49 |
root |
1.143 |
#if CORO_USE_VALGRIND |
50 |
root |
1.104 |
# include <valgrind/valgrind.h> |
51 |
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#endif |
52 |
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53 |
root |
1.115 |
/* the maximum number of idle cctx that will be pooled */ |
54 |
root |
1.254 |
static int cctx_max_idle = 4; |
55 |
root |
1.115 |
|
56 |
root |
1.100 |
#define PERL_VERSION_ATLEAST(a,b,c) \ |
57 |
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(PERL_REVISION > (a) \ |
58 |
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|| (PERL_REVISION == (a) \ |
59 |
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&& (PERL_VERSION > (b) \ |
60 |
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|| (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
61 |
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62 |
root |
1.102 |
#if !PERL_VERSION_ATLEAST (5,6,0) |
63 |
pcg |
1.46 |
# ifndef PL_ppaddr |
64 |
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# define PL_ppaddr ppaddr |
65 |
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# endif |
66 |
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# ifndef call_sv |
67 |
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# define call_sv perl_call_sv |
68 |
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# endif |
69 |
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# ifndef get_sv |
70 |
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# define get_sv perl_get_sv |
71 |
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# endif |
72 |
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# ifndef get_cv |
73 |
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# define get_cv perl_get_cv |
74 |
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# endif |
75 |
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# ifndef IS_PADGV |
76 |
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# define IS_PADGV(v) 0 |
77 |
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# endif |
78 |
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# ifndef IS_PADCONST |
79 |
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# define IS_PADCONST(v) 0 |
80 |
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# endif |
81 |
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#endif |
82 |
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83 |
root |
1.251 |
/* 5.11 */ |
84 |
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#ifndef CxHASARGS |
85 |
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# define CxHASARGS(cx) (cx)->blk_sub.hasargs |
86 |
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#endif |
87 |
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88 |
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/* 5.10.0 */ |
89 |
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#ifndef SvREFCNT_inc_NN |
90 |
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# define SvREFCNT_inc_NN(sv) SvREFCNT_inc (sv) |
91 |
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#endif |
92 |
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93 |
root |
1.190 |
/* 5.8.8 */ |
94 |
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#ifndef GV_NOTQUAL |
95 |
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# define GV_NOTQUAL 0 |
96 |
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#endif |
97 |
root |
1.191 |
#ifndef newSV |
98 |
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# define newSV(l) NEWSV(0,l) |
99 |
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#endif |
100 |
root |
1.223 |
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101 |
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/* 5.8.7 */ |
102 |
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#ifndef SvRV_set |
103 |
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# define SvRV_set(s,v) SvRV(s) = (v) |
104 |
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#endif |
105 |
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106 |
root |
1.78 |
#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
107 |
root |
1.143 |
# undef CORO_STACKGUARD |
108 |
root |
1.78 |
#endif |
109 |
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110 |
root |
1.143 |
#ifndef CORO_STACKGUARD |
111 |
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# define CORO_STACKGUARD 0 |
112 |
root |
1.78 |
#endif |
113 |
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114 |
root |
1.127 |
/* prefer perl internal functions over our own? */ |
115 |
root |
1.143 |
#ifndef CORO_PREFER_PERL_FUNCTIONS |
116 |
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# define CORO_PREFER_PERL_FUNCTIONS 0 |
117 |
root |
1.3 |
#endif |
118 |
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119 |
root |
1.158 |
/* The next macros try to return the current stack pointer, in an as |
120 |
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* portable way as possible. */ |
121 |
root |
1.268 |
#if __GNUC__ >= 4 |
122 |
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# define dSTACKLEVEL void *stacklevel = __builtin_frame_address (0) |
123 |
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#else |
124 |
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# define dSTACKLEVEL volatile void *stacklevel = (volatile void *)&stacklevel |
125 |
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#endif |
126 |
root |
1.15 |
|
127 |
root |
1.34 |
#define IN_DESTRUCT (PL_main_cv == Nullcv) |
128 |
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129 |
root |
1.100 |
#if __GNUC__ >= 3 |
130 |
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# define attribute(x) __attribute__(x) |
131 |
root |
1.194 |
# define expect(expr,value) __builtin_expect ((expr),(value)) |
132 |
root |
1.263 |
# define INLINE static inline |
133 |
root |
1.100 |
#else |
134 |
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# define attribute(x) |
135 |
root |
1.194 |
# define expect(expr,value) (expr) |
136 |
root |
1.263 |
# define INLINE static |
137 |
root |
1.100 |
#endif |
138 |
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139 |
root |
1.194 |
#define expect_false(expr) expect ((expr) != 0, 0) |
140 |
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#define expect_true(expr) expect ((expr) != 0, 1) |
141 |
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142 |
root |
1.100 |
#define NOINLINE attribute ((noinline)) |
143 |
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144 |
root |
1.23 |
#include "CoroAPI.h" |
145 |
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146 |
pcg |
1.55 |
#ifdef USE_ITHREADS |
147 |
root |
1.256 |
|
148 |
root |
1.253 |
static perl_mutex coro_lock; |
149 |
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# define LOCK do { MUTEX_LOCK (&coro_lock); } while (0) |
150 |
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# define UNLOCK do { MUTEX_UNLOCK (&coro_lock); } while (0) |
151 |
root |
1.256 |
# if CORO_PTHREAD |
152 |
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static void *coro_thx; |
153 |
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# endif |
154 |
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|
155 |
pcg |
1.55 |
#else |
156 |
root |
1.256 |
|
157 |
root |
1.69 |
# define LOCK (void)0 |
158 |
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# define UNLOCK (void)0 |
159 |
root |
1.256 |
|
160 |
pcg |
1.55 |
#endif |
161 |
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162 |
root |
1.256 |
# undef LOCK |
163 |
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# define LOCK (void)0 |
164 |
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# undef UNLOCK |
165 |
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# define UNLOCK (void)0 |
166 |
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|
167 |
root |
1.136 |
/* helper storage struct for Coro::AIO */ |
168 |
root |
1.120 |
struct io_state |
169 |
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{ |
170 |
root |
1.249 |
AV *res; |
171 |
root |
1.120 |
int errorno; |
172 |
root |
1.255 |
I32 laststype; /* U16 in 5.10.0 */ |
173 |
root |
1.120 |
int laststatval; |
174 |
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Stat_t statcache; |
175 |
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}; |
176 |
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177 |
root |
1.246 |
static double (*nvtime)(); /* so why doesn't it take void? */ |
178 |
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179 |
root |
1.254 |
static U32 cctx_gen; |
180 |
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static size_t cctx_stacksize = CORO_STACKSIZE; |
181 |
root |
1.23 |
static struct CoroAPI coroapi; |
182 |
pcg |
1.56 |
static AV *main_mainstack; /* used to differentiate between $main and others */ |
183 |
root |
1.148 |
static JMPENV *main_top_env; |
184 |
root |
1.88 |
static HV *coro_state_stash, *coro_stash; |
185 |
root |
1.252 |
static volatile SV *coro_mortal; /* will be freed/thrown after next transfer */ |
186 |
root |
1.260 |
static volatile struct coro *transfer_next; |
187 |
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|
188 |
root |
1.189 |
static GV *irsgv; /* $/ */ |
189 |
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static GV *stdoutgv; /* *STDOUT */ |
190 |
root |
1.214 |
static SV *rv_diehook; |
191 |
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static SV *rv_warnhook; |
192 |
root |
1.200 |
static HV *hv_sig; /* %SIG */ |
193 |
root |
1.178 |
|
194 |
root |
1.159 |
/* async_pool helper stuff */ |
195 |
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static SV *sv_pool_rss; |
196 |
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static SV *sv_pool_size; |
197 |
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static AV *av_async_pool; |
198 |
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|
199 |
root |
1.233 |
/* Coro::AnyEvent */ |
200 |
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static SV *sv_activity; |
201 |
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202 |
root |
1.211 |
static struct coro_cctx *cctx_first; |
203 |
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static int cctx_count, cctx_idle; |
204 |
root |
1.107 |
|
205 |
root |
1.165 |
enum { |
206 |
root |
1.167 |
CC_MAPPED = 0x01, |
207 |
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CC_NOREUSE = 0x02, /* throw this away after tracing */ |
208 |
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CC_TRACE = 0x04, |
209 |
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CC_TRACE_SUB = 0x08, /* trace sub calls */ |
210 |
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CC_TRACE_LINE = 0x10, /* trace each statement */ |
211 |
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CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
212 |
root |
1.165 |
}; |
213 |
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|
214 |
root |
1.92 |
/* this is a structure representing a c-level coroutine */ |
215 |
root |
1.272 |
typedef struct coro_cctx |
216 |
|
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{ |
217 |
root |
1.106 |
struct coro_cctx *next; |
218 |
root |
1.15 |
|
219 |
root |
1.93 |
/* the stack */ |
220 |
root |
1.15 |
void *sptr; |
221 |
root |
1.145 |
size_t ssize; |
222 |
root |
1.89 |
|
223 |
|
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/* cpu state */ |
224 |
root |
1.132 |
void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
225 |
|
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JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
226 |
root |
1.93 |
JMPENV *top_env; |
227 |
root |
1.89 |
coro_context cctx; |
228 |
root |
1.104 |
|
229 |
root |
1.254 |
U32 gen; |
230 |
root |
1.143 |
#if CORO_USE_VALGRIND |
231 |
root |
1.104 |
int valgrind_id; |
232 |
|
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#endif |
233 |
root |
1.165 |
unsigned char flags; |
234 |
root |
1.106 |
} coro_cctx; |
235 |
root |
1.15 |
|
236 |
root |
1.111 |
enum { |
237 |
root |
1.133 |
CF_RUNNING = 0x0001, /* coroutine is running */ |
238 |
|
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CF_READY = 0x0002, /* coroutine is ready */ |
239 |
|
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CF_NEW = 0x0004, /* has never been switched to */ |
240 |
|
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CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
241 |
root |
1.111 |
}; |
242 |
|
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|
243 |
root |
1.198 |
/* the structure where most of the perl state is stored, overlaid on the cxstack */ |
244 |
root |
1.272 |
typedef struct |
245 |
|
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{ |
246 |
root |
1.198 |
SV *defsv; |
247 |
|
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AV *defav; |
248 |
|
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SV *errsv; |
249 |
|
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SV *irsgv; |
250 |
|
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#define VAR(name,type) type name; |
251 |
|
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# include "state.h" |
252 |
|
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#undef VAR |
253 |
|
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} perl_slots; |
254 |
|
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|
255 |
|
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#define SLOT_COUNT ((sizeof (perl_slots) + sizeof (PERL_CONTEXT) - 1) / sizeof (PERL_CONTEXT)) |
256 |
|
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|
257 |
root |
1.92 |
/* this is a structure representing a perl-level coroutine */ |
258 |
root |
1.1 |
struct coro { |
259 |
root |
1.272 |
/* the C coroutine allocated to this perl coroutine, if any */ |
260 |
root |
1.106 |
coro_cctx *cctx; |
261 |
root |
1.92 |
|
262 |
root |
1.198 |
/* process data */ |
263 |
root |
1.273 |
struct CoroSLF slf_frame; /* saved slf frame */ |
264 |
root |
1.198 |
AV *mainstack; |
265 |
|
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perl_slots *slot; /* basically the saved sp */ |
266 |
|
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|
267 |
root |
1.203 |
AV *args; /* data associated with this coroutine (initial args) */ |
268 |
|
|
int refcnt; /* coroutines are refcounted, yes */ |
269 |
|
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int flags; /* CF_ flags */ |
270 |
|
|
HV *hv; /* the perl hash associated with this coro, if any */ |
271 |
root |
1.92 |
|
272 |
root |
1.172 |
/* statistics */ |
273 |
root |
1.181 |
int usecount; /* number of transfers to this coro */ |
274 |
root |
1.172 |
|
275 |
root |
1.87 |
/* coro process data */ |
276 |
|
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int prio; |
277 |
root |
1.203 |
SV *throw; /* exception to be thrown */ |
278 |
root |
1.181 |
|
279 |
|
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/* async_pool */ |
280 |
root |
1.184 |
SV *saved_deffh; |
281 |
root |
1.151 |
|
282 |
|
|
/* linked list */ |
283 |
|
|
struct coro *next, *prev; |
284 |
root |
1.1 |
}; |
285 |
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|
286 |
|
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typedef struct coro *Coro__State; |
287 |
|
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typedef struct coro *Coro__State_or_hashref; |
288 |
|
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|
289 |
root |
1.273 |
static struct CoroSLF slf_frame; /* the current slf frame */ |
290 |
root |
1.272 |
|
291 |
root |
1.137 |
/** Coro ********************************************************************/ |
292 |
|
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|
293 |
|
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#define PRIO_MAX 3 |
294 |
|
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#define PRIO_HIGH 1 |
295 |
|
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#define PRIO_NORMAL 0 |
296 |
|
|
#define PRIO_LOW -1 |
297 |
|
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#define PRIO_IDLE -3 |
298 |
|
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#define PRIO_MIN -4 |
299 |
|
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|
300 |
|
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/* for Coro.pm */ |
301 |
|
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static SV *coro_current; |
302 |
root |
1.233 |
static SV *coro_readyhook; |
303 |
root |
1.257 |
static AV *coro_ready [PRIO_MAX - PRIO_MIN + 1]; |
304 |
root |
1.153 |
static struct coro *coro_first; |
305 |
root |
1.270 |
#define coro_nready coroapi.nready |
306 |
root |
1.137 |
|
307 |
|
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/** lowlevel stuff **********************************************************/ |
308 |
|
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|
309 |
root |
1.199 |
static SV * |
310 |
root |
1.213 |
coro_get_sv (pTHX_ const char *name, int create) |
311 |
root |
1.199 |
{ |
312 |
root |
1.228 |
#if PERL_VERSION_ATLEAST (5,10,0) |
313 |
root |
1.199 |
/* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
314 |
|
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get_sv (name, create); |
315 |
|
|
#endif |
316 |
|
|
return get_sv (name, create); |
317 |
|
|
} |
318 |
|
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|
319 |
root |
1.200 |
static AV * |
320 |
root |
1.213 |
coro_get_av (pTHX_ const char *name, int create) |
321 |
root |
1.199 |
{ |
322 |
root |
1.228 |
#if PERL_VERSION_ATLEAST (5,10,0) |
323 |
root |
1.199 |
/* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
324 |
|
|
get_av (name, create); |
325 |
|
|
#endif |
326 |
|
|
return get_av (name, create); |
327 |
|
|
} |
328 |
|
|
|
329 |
root |
1.200 |
static HV * |
330 |
root |
1.213 |
coro_get_hv (pTHX_ const char *name, int create) |
331 |
root |
1.200 |
{ |
332 |
root |
1.228 |
#if PERL_VERSION_ATLEAST (5,10,0) |
333 |
root |
1.200 |
/* silence stupid and wrong 5.10 warning that I am unable to switch off */ |
334 |
|
|
get_hv (name, create); |
335 |
|
|
#endif |
336 |
|
|
return get_hv (name, create); |
337 |
|
|
} |
338 |
|
|
|
339 |
root |
1.77 |
static AV * |
340 |
root |
1.146 |
coro_clone_padlist (pTHX_ CV *cv) |
341 |
root |
1.77 |
{ |
342 |
|
|
AV *padlist = CvPADLIST (cv); |
343 |
|
|
AV *newpadlist, *newpad; |
344 |
root |
1.3 |
|
345 |
|
|
newpadlist = newAV (); |
346 |
|
|
AvREAL_off (newpadlist); |
347 |
root |
1.228 |
#if PERL_VERSION_ATLEAST (5,10,0) |
348 |
root |
1.100 |
Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
349 |
|
|
#else |
350 |
root |
1.77 |
Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
351 |
root |
1.79 |
#endif |
352 |
root |
1.77 |
newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
353 |
|
|
--AvFILLp (padlist); |
354 |
root |
1.3 |
|
355 |
root |
1.249 |
av_store (newpadlist, 0, SvREFCNT_inc_NN (*av_fetch (padlist, 0, FALSE))); |
356 |
root |
1.77 |
av_store (newpadlist, 1, (SV *)newpad); |
357 |
root |
1.3 |
|
358 |
|
|
return newpadlist; |
359 |
|
|
} |
360 |
|
|
|
361 |
root |
1.77 |
static void |
362 |
root |
1.146 |
free_padlist (pTHX_ AV *padlist) |
363 |
root |
1.3 |
{ |
364 |
|
|
/* may be during global destruction */ |
365 |
pcg |
1.50 |
if (SvREFCNT (padlist)) |
366 |
root |
1.3 |
{ |
367 |
pcg |
1.50 |
I32 i = AvFILLp (padlist); |
368 |
root |
1.3 |
while (i >= 0) |
369 |
|
|
{ |
370 |
pcg |
1.50 |
SV **svp = av_fetch (padlist, i--, FALSE); |
371 |
|
|
if (svp) |
372 |
|
|
{ |
373 |
|
|
SV *sv; |
374 |
|
|
while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
375 |
|
|
SvREFCNT_dec (sv); |
376 |
|
|
|
377 |
|
|
SvREFCNT_dec (*svp); |
378 |
|
|
} |
379 |
root |
1.3 |
} |
380 |
|
|
|
381 |
pcg |
1.50 |
SvREFCNT_dec ((SV*)padlist); |
382 |
|
|
} |
383 |
|
|
} |
384 |
|
|
|
385 |
root |
1.77 |
static int |
386 |
pcg |
1.54 |
coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
387 |
pcg |
1.50 |
{ |
388 |
|
|
AV *padlist; |
389 |
|
|
AV *av = (AV *)mg->mg_obj; |
390 |
|
|
|
391 |
|
|
/* casting is fun. */ |
392 |
|
|
while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
393 |
root |
1.146 |
free_padlist (aTHX_ padlist); |
394 |
root |
1.61 |
|
395 |
root |
1.245 |
SvREFCNT_dec (av); /* sv_magicext increased the refcount */ |
396 |
root |
1.244 |
|
397 |
root |
1.76 |
return 0; |
398 |
root |
1.3 |
} |
399 |
pcg |
1.50 |
|
400 |
root |
1.214 |
#define CORO_MAGIC_type_cv PERL_MAGIC_ext |
401 |
|
|
#define CORO_MAGIC_type_state PERL_MAGIC_ext |
402 |
pcg |
1.50 |
|
403 |
root |
1.214 |
static MGVTBL coro_cv_vtbl = { |
404 |
|
|
0, 0, 0, 0, |
405 |
|
|
coro_cv_free |
406 |
|
|
}; |
407 |
root |
1.3 |
|
408 |
root |
1.253 |
#define CORO_MAGIC(sv, type) \ |
409 |
|
|
SvMAGIC (sv) \ |
410 |
|
|
? SvMAGIC (sv)->mg_type == type \ |
411 |
|
|
? SvMAGIC (sv) \ |
412 |
|
|
: mg_find (sv, type) \ |
413 |
|
|
: 0 |
414 |
root |
1.109 |
|
415 |
root |
1.214 |
#define CORO_MAGIC_cv(cv) CORO_MAGIC (((SV *)(cv)), CORO_MAGIC_type_cv) |
416 |
|
|
#define CORO_MAGIC_state(sv) CORO_MAGIC (((SV *)(sv)), CORO_MAGIC_type_state) |
417 |
|
|
|
418 |
root |
1.263 |
INLINE struct coro * |
419 |
root |
1.169 |
SvSTATE_ (pTHX_ SV *coro) |
420 |
|
|
{ |
421 |
|
|
HV *stash; |
422 |
|
|
MAGIC *mg; |
423 |
|
|
|
424 |
|
|
if (SvROK (coro)) |
425 |
|
|
coro = SvRV (coro); |
426 |
|
|
|
427 |
root |
1.194 |
if (expect_false (SvTYPE (coro) != SVt_PVHV)) |
428 |
root |
1.172 |
croak ("Coro::State object required"); |
429 |
|
|
|
430 |
root |
1.169 |
stash = SvSTASH (coro); |
431 |
root |
1.194 |
if (expect_false (stash != coro_stash && stash != coro_state_stash)) |
432 |
root |
1.169 |
{ |
433 |
|
|
/* very slow, but rare, check */ |
434 |
|
|
if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
435 |
|
|
croak ("Coro::State object required"); |
436 |
|
|
} |
437 |
|
|
|
438 |
root |
1.214 |
mg = CORO_MAGIC_state (coro); |
439 |
root |
1.169 |
return (struct coro *)mg->mg_ptr; |
440 |
|
|
} |
441 |
|
|
|
442 |
|
|
#define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
443 |
|
|
|
444 |
root |
1.7 |
/* the next two functions merely cache the padlists */ |
445 |
root |
1.77 |
static void |
446 |
root |
1.146 |
get_padlist (pTHX_ CV *cv) |
447 |
root |
1.3 |
{ |
448 |
root |
1.214 |
MAGIC *mg = CORO_MAGIC_cv (cv); |
449 |
root |
1.109 |
AV *av; |
450 |
root |
1.4 |
|
451 |
root |
1.194 |
if (expect_true (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0)) |
452 |
root |
1.109 |
CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
453 |
root |
1.4 |
else |
454 |
root |
1.77 |
{ |
455 |
root |
1.143 |
#if CORO_PREFER_PERL_FUNCTIONS |
456 |
root |
1.244 |
/* this is probably cleaner? but also slower! */ |
457 |
|
|
/* in practise, it seems to be less stable */ |
458 |
root |
1.98 |
CV *cp = Perl_cv_clone (cv); |
459 |
root |
1.77 |
CvPADLIST (cv) = CvPADLIST (cp); |
460 |
|
|
CvPADLIST (cp) = 0; |
461 |
|
|
SvREFCNT_dec (cp); |
462 |
|
|
#else |
463 |
root |
1.146 |
CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
464 |
root |
1.77 |
#endif |
465 |
|
|
} |
466 |
root |
1.4 |
} |
467 |
|
|
|
468 |
root |
1.77 |
static void |
469 |
root |
1.146 |
put_padlist (pTHX_ CV *cv) |
470 |
root |
1.4 |
{ |
471 |
root |
1.214 |
MAGIC *mg = CORO_MAGIC_cv (cv); |
472 |
root |
1.109 |
AV *av; |
473 |
root |
1.7 |
|
474 |
root |
1.194 |
if (expect_false (!mg)) |
475 |
root |
1.214 |
mg = sv_magicext ((SV *)cv, (SV *)newAV (), CORO_MAGIC_type_cv, &coro_cv_vtbl, 0, 0); |
476 |
root |
1.7 |
|
477 |
root |
1.109 |
av = (AV *)mg->mg_obj; |
478 |
|
|
|
479 |
root |
1.194 |
if (expect_false (AvFILLp (av) >= AvMAX (av))) |
480 |
root |
1.109 |
av_extend (av, AvMAX (av) + 1); |
481 |
|
|
|
482 |
|
|
AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
483 |
root |
1.7 |
} |
484 |
|
|
|
485 |
root |
1.137 |
/** load & save, init *******************************************************/ |
486 |
|
|
|
487 |
root |
1.7 |
static void |
488 |
root |
1.146 |
load_perl (pTHX_ Coro__State c) |
489 |
root |
1.7 |
{ |
490 |
root |
1.198 |
perl_slots *slot = c->slot; |
491 |
|
|
c->slot = 0; |
492 |
|
|
|
493 |
|
|
PL_mainstack = c->mainstack; |
494 |
root |
1.7 |
|
495 |
root |
1.198 |
GvSV (PL_defgv) = slot->defsv; |
496 |
|
|
GvAV (PL_defgv) = slot->defav; |
497 |
|
|
GvSV (PL_errgv) = slot->errsv; |
498 |
|
|
GvSV (irsgv) = slot->irsgv; |
499 |
|
|
|
500 |
|
|
#define VAR(name,type) PL_ ## name = slot->name; |
501 |
|
|
# include "state.h" |
502 |
|
|
#undef VAR |
503 |
root |
1.7 |
|
504 |
|
|
{ |
505 |
|
|
dSP; |
506 |
root |
1.198 |
|
507 |
root |
1.7 |
CV *cv; |
508 |
|
|
|
509 |
|
|
/* now do the ugly restore mess */ |
510 |
root |
1.194 |
while (expect_true (cv = (CV *)POPs)) |
511 |
root |
1.7 |
{ |
512 |
root |
1.146 |
put_padlist (aTHX_ cv); /* mark this padlist as available */ |
513 |
root |
1.109 |
CvDEPTH (cv) = PTR2IV (POPs); |
514 |
|
|
CvPADLIST (cv) = (AV *)POPs; |
515 |
root |
1.7 |
} |
516 |
|
|
|
517 |
|
|
PUTBACK; |
518 |
|
|
} |
519 |
root |
1.272 |
|
520 |
|
|
slf_frame = c->slf_frame; |
521 |
root |
1.7 |
} |
522 |
|
|
|
523 |
root |
1.3 |
static void |
524 |
root |
1.146 |
save_perl (pTHX_ Coro__State c) |
525 |
root |
1.3 |
{ |
526 |
root |
1.272 |
c->slf_frame = slf_frame; |
527 |
|
|
|
528 |
root |
1.3 |
{ |
529 |
|
|
dSP; |
530 |
|
|
I32 cxix = cxstack_ix; |
531 |
root |
1.11 |
PERL_CONTEXT *ccstk = cxstack; |
532 |
root |
1.3 |
PERL_SI *top_si = PL_curstackinfo; |
533 |
|
|
|
534 |
|
|
/* |
535 |
|
|
* the worst thing you can imagine happens first - we have to save |
536 |
|
|
* (and reinitialize) all cv's in the whole callchain :( |
537 |
|
|
*/ |
538 |
|
|
|
539 |
root |
1.157 |
XPUSHs (Nullsv); |
540 |
root |
1.3 |
/* this loop was inspired by pp_caller */ |
541 |
|
|
for (;;) |
542 |
|
|
{ |
543 |
root |
1.194 |
while (expect_true (cxix >= 0)) |
544 |
root |
1.3 |
{ |
545 |
root |
1.4 |
PERL_CONTEXT *cx = &ccstk[cxix--]; |
546 |
root |
1.3 |
|
547 |
root |
1.194 |
if (expect_true (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT)) |
548 |
root |
1.3 |
{ |
549 |
|
|
CV *cv = cx->blk_sub.cv; |
550 |
root |
1.109 |
|
551 |
root |
1.194 |
if (expect_true (CvDEPTH (cv))) |
552 |
root |
1.3 |
{ |
553 |
root |
1.109 |
EXTEND (SP, 3); |
554 |
root |
1.117 |
PUSHs ((SV *)CvPADLIST (cv)); |
555 |
root |
1.233 |
PUSHs (INT2PTR (SV *, (IV)CvDEPTH (cv))); |
556 |
root |
1.3 |
PUSHs ((SV *)cv); |
557 |
|
|
|
558 |
root |
1.109 |
CvDEPTH (cv) = 0; |
559 |
root |
1.146 |
get_padlist (aTHX_ cv); |
560 |
root |
1.3 |
} |
561 |
|
|
} |
562 |
|
|
} |
563 |
|
|
|
564 |
root |
1.194 |
if (expect_true (top_si->si_type == PERLSI_MAIN)) |
565 |
root |
1.3 |
break; |
566 |
|
|
|
567 |
|
|
top_si = top_si->si_prev; |
568 |
root |
1.158 |
ccstk = top_si->si_cxstack; |
569 |
|
|
cxix = top_si->si_cxix; |
570 |
root |
1.3 |
} |
571 |
|
|
|
572 |
|
|
PUTBACK; |
573 |
|
|
} |
574 |
|
|
|
575 |
root |
1.198 |
/* allocate some space on the context stack for our purposes */ |
576 |
root |
1.202 |
/* we manually unroll here, as usually 2 slots is enough */ |
577 |
|
|
if (SLOT_COUNT >= 1) CXINC; |
578 |
|
|
if (SLOT_COUNT >= 2) CXINC; |
579 |
|
|
if (SLOT_COUNT >= 3) CXINC; |
580 |
root |
1.198 |
{ |
581 |
|
|
int i; |
582 |
|
|
for (i = 3; i < SLOT_COUNT; ++i) |
583 |
|
|
CXINC; |
584 |
|
|
} |
585 |
root |
1.202 |
cxstack_ix -= SLOT_COUNT; /* undo allocation */ |
586 |
root |
1.198 |
|
587 |
|
|
c->mainstack = PL_mainstack; |
588 |
|
|
|
589 |
|
|
{ |
590 |
|
|
perl_slots *slot = c->slot = (perl_slots *)(cxstack + cxstack_ix + 1); |
591 |
|
|
|
592 |
|
|
slot->defav = GvAV (PL_defgv); |
593 |
|
|
slot->defsv = DEFSV; |
594 |
|
|
slot->errsv = ERRSV; |
595 |
|
|
slot->irsgv = GvSV (irsgv); |
596 |
|
|
|
597 |
|
|
#define VAR(name,type) slot->name = PL_ ## name; |
598 |
|
|
# include "state.h" |
599 |
|
|
#undef VAR |
600 |
|
|
} |
601 |
root |
1.13 |
} |
602 |
|
|
|
603 |
|
|
/* |
604 |
root |
1.272 |
* allocate various perl stacks. This is almost an exact copy |
605 |
root |
1.13 |
* of perl.c:init_stacks, except that it uses less memory |
606 |
pcg |
1.52 |
* on the (sometimes correct) assumption that coroutines do |
607 |
|
|
* not usually need a lot of stackspace. |
608 |
root |
1.13 |
*/ |
609 |
root |
1.204 |
#if CORO_PREFER_PERL_FUNCTIONS |
610 |
root |
1.126 |
# define coro_init_stacks init_stacks |
611 |
|
|
#else |
612 |
root |
1.77 |
static void |
613 |
root |
1.146 |
coro_init_stacks (pTHX) |
614 |
root |
1.13 |
{ |
615 |
root |
1.198 |
PL_curstackinfo = new_stackinfo(32, 8); |
616 |
root |
1.13 |
PL_curstackinfo->si_type = PERLSI_MAIN; |
617 |
|
|
PL_curstack = PL_curstackinfo->si_stack; |
618 |
|
|
PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
619 |
|
|
|
620 |
|
|
PL_stack_base = AvARRAY(PL_curstack); |
621 |
|
|
PL_stack_sp = PL_stack_base; |
622 |
|
|
PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
623 |
|
|
|
624 |
root |
1.198 |
New(50,PL_tmps_stack,32,SV*); |
625 |
root |
1.13 |
PL_tmps_floor = -1; |
626 |
|
|
PL_tmps_ix = -1; |
627 |
root |
1.198 |
PL_tmps_max = 32; |
628 |
root |
1.13 |
|
629 |
root |
1.154 |
New(54,PL_markstack,16,I32); |
630 |
root |
1.13 |
PL_markstack_ptr = PL_markstack; |
631 |
root |
1.154 |
PL_markstack_max = PL_markstack + 16; |
632 |
root |
1.13 |
|
633 |
pcg |
1.46 |
#ifdef SET_MARK_OFFSET |
634 |
root |
1.13 |
SET_MARK_OFFSET; |
635 |
pcg |
1.46 |
#endif |
636 |
root |
1.13 |
|
637 |
root |
1.198 |
New(54,PL_scopestack,8,I32); |
638 |
root |
1.13 |
PL_scopestack_ix = 0; |
639 |
root |
1.198 |
PL_scopestack_max = 8; |
640 |
root |
1.13 |
|
641 |
root |
1.198 |
New(54,PL_savestack,24,ANY); |
642 |
root |
1.13 |
PL_savestack_ix = 0; |
643 |
root |
1.198 |
PL_savestack_max = 24; |
644 |
root |
1.13 |
|
645 |
root |
1.228 |
#if !PERL_VERSION_ATLEAST (5,10,0) |
646 |
root |
1.156 |
New(54,PL_retstack,4,OP*); |
647 |
root |
1.13 |
PL_retstack_ix = 0; |
648 |
root |
1.156 |
PL_retstack_max = 4; |
649 |
root |
1.71 |
#endif |
650 |
root |
1.3 |
} |
651 |
root |
1.127 |
#endif |
652 |
root |
1.1 |
|
653 |
root |
1.7 |
/* |
654 |
|
|
* destroy the stacks, the callchain etc... |
655 |
|
|
*/ |
656 |
root |
1.77 |
static void |
657 |
root |
1.253 |
coro_destruct_stacks (pTHX) |
658 |
root |
1.1 |
{ |
659 |
root |
1.4 |
while (PL_curstackinfo->si_next) |
660 |
|
|
PL_curstackinfo = PL_curstackinfo->si_next; |
661 |
|
|
|
662 |
|
|
while (PL_curstackinfo) |
663 |
|
|
{ |
664 |
|
|
PERL_SI *p = PL_curstackinfo->si_prev; |
665 |
|
|
|
666 |
root |
1.34 |
if (!IN_DESTRUCT) |
667 |
root |
1.126 |
SvREFCNT_dec (PL_curstackinfo->si_stack); |
668 |
root |
1.7 |
|
669 |
pcg |
1.57 |
Safefree (PL_curstackinfo->si_cxstack); |
670 |
|
|
Safefree (PL_curstackinfo); |
671 |
root |
1.4 |
PL_curstackinfo = p; |
672 |
|
|
} |
673 |
|
|
|
674 |
pcg |
1.57 |
Safefree (PL_tmps_stack); |
675 |
|
|
Safefree (PL_markstack); |
676 |
|
|
Safefree (PL_scopestack); |
677 |
|
|
Safefree (PL_savestack); |
678 |
root |
1.228 |
#if !PERL_VERSION_ATLEAST (5,10,0) |
679 |
pcg |
1.57 |
Safefree (PL_retstack); |
680 |
root |
1.71 |
#endif |
681 |
root |
1.1 |
} |
682 |
|
|
|
683 |
root |
1.152 |
static size_t |
684 |
root |
1.171 |
coro_rss (pTHX_ struct coro *coro) |
685 |
root |
1.152 |
{ |
686 |
root |
1.183 |
size_t rss = sizeof (*coro); |
687 |
root |
1.152 |
|
688 |
|
|
if (coro->mainstack) |
689 |
|
|
{ |
690 |
root |
1.198 |
perl_slots tmp_slot; |
691 |
|
|
perl_slots *slot; |
692 |
|
|
|
693 |
root |
1.153 |
if (coro->flags & CF_RUNNING) |
694 |
|
|
{ |
695 |
root |
1.198 |
slot = &tmp_slot; |
696 |
|
|
|
697 |
|
|
#define VAR(name,type) slot->name = PL_ ## name; |
698 |
root |
1.153 |
# include "state.h" |
699 |
|
|
#undef VAR |
700 |
|
|
} |
701 |
root |
1.198 |
else |
702 |
|
|
slot = coro->slot; |
703 |
root |
1.153 |
|
704 |
root |
1.245 |
if (slot) |
705 |
|
|
{ |
706 |
|
|
rss += sizeof (slot->curstackinfo); |
707 |
|
|
rss += (slot->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
708 |
|
|
rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvMAX (slot->curstack)) * sizeof (SV *); |
709 |
|
|
rss += slot->tmps_max * sizeof (SV *); |
710 |
|
|
rss += (slot->markstack_max - slot->markstack_ptr) * sizeof (I32); |
711 |
|
|
rss += slot->scopestack_max * sizeof (I32); |
712 |
|
|
rss += slot->savestack_max * sizeof (ANY); |
713 |
root |
1.152 |
|
714 |
root |
1.228 |
#if !PERL_VERSION_ATLEAST (5,10,0) |
715 |
root |
1.245 |
rss += slot->retstack_max * sizeof (OP *); |
716 |
root |
1.152 |
#endif |
717 |
root |
1.245 |
} |
718 |
root |
1.152 |
} |
719 |
|
|
|
720 |
|
|
return rss; |
721 |
|
|
} |
722 |
|
|
|
723 |
root |
1.137 |
/** coroutine stack handling ************************************************/ |
724 |
|
|
|
725 |
root |
1.214 |
static int (*orig_sigelem_get) (pTHX_ SV *sv, MAGIC *mg); |
726 |
root |
1.220 |
static int (*orig_sigelem_set) (pTHX_ SV *sv, MAGIC *mg); |
727 |
root |
1.239 |
static int (*orig_sigelem_clr) (pTHX_ SV *sv, MAGIC *mg); |
728 |
root |
1.214 |
|
729 |
root |
1.238 |
/* apparently < 5.8.8 */ |
730 |
|
|
#ifndef MgPV_nolen_const |
731 |
|
|
#define MgPV_nolen_const(mg) (((((int)(mg)->mg_len)) == HEf_SVKEY) ? \ |
732 |
root |
1.241 |
SvPV_nolen((SV*)((mg)->mg_ptr)) : \ |
733 |
root |
1.238 |
(const char*)(mg)->mg_ptr) |
734 |
|
|
#endif |
735 |
|
|
|
736 |
root |
1.214 |
/* |
737 |
|
|
* This overrides the default magic get method of %SIG elements. |
738 |
|
|
* The original one doesn't provide for reading back of PL_diehook/PL_warnhook |
739 |
|
|
* and instead of tryign to save and restore the hash elements, we just provide |
740 |
|
|
* readback here. |
741 |
|
|
* We only do this when the hook is != 0, as they are often set to 0 temporarily, |
742 |
|
|
* not expecting this to actually change the hook. This is a potential problem |
743 |
|
|
* when a schedule happens then, but we ignore this. |
744 |
|
|
*/ |
745 |
|
|
static int |
746 |
|
|
coro_sigelem_get (pTHX_ SV *sv, MAGIC *mg) |
747 |
|
|
{ |
748 |
|
|
const char *s = MgPV_nolen_const (mg); |
749 |
|
|
|
750 |
|
|
if (*s == '_') |
751 |
|
|
{ |
752 |
root |
1.239 |
SV **svp = 0; |
753 |
|
|
|
754 |
|
|
if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
755 |
|
|
if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
756 |
|
|
|
757 |
|
|
if (svp) |
758 |
|
|
{ |
759 |
|
|
sv_setsv (sv, *svp ? *svp : &PL_sv_undef); |
760 |
|
|
return 0; |
761 |
|
|
} |
762 |
root |
1.214 |
} |
763 |
|
|
|
764 |
root |
1.220 |
return orig_sigelem_get ? orig_sigelem_get (aTHX_ sv, mg) : 0; |
765 |
|
|
} |
766 |
|
|
|
767 |
|
|
static int |
768 |
root |
1.239 |
coro_sigelem_clr (pTHX_ SV *sv, MAGIC *mg) |
769 |
|
|
{ |
770 |
|
|
const char *s = MgPV_nolen_const (mg); |
771 |
|
|
|
772 |
|
|
if (*s == '_') |
773 |
|
|
{ |
774 |
|
|
SV **svp = 0; |
775 |
|
|
|
776 |
|
|
if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
777 |
|
|
if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
778 |
|
|
|
779 |
|
|
if (svp) |
780 |
|
|
{ |
781 |
|
|
SV *old = *svp; |
782 |
|
|
*svp = 0; |
783 |
|
|
SvREFCNT_dec (old); |
784 |
|
|
return 0; |
785 |
|
|
} |
786 |
|
|
} |
787 |
|
|
|
788 |
|
|
return orig_sigelem_clr ? orig_sigelem_clr (aTHX_ sv, mg) : 0; |
789 |
|
|
} |
790 |
|
|
|
791 |
|
|
static int |
792 |
root |
1.220 |
coro_sigelem_set (pTHX_ SV *sv, MAGIC *mg) |
793 |
|
|
{ |
794 |
|
|
const char *s = MgPV_nolen_const (mg); |
795 |
|
|
|
796 |
|
|
if (*s == '_') |
797 |
|
|
{ |
798 |
|
|
SV **svp = 0; |
799 |
|
|
|
800 |
|
|
if (strEQ (s, "__DIE__" )) svp = &PL_diehook; |
801 |
|
|
if (strEQ (s, "__WARN__")) svp = &PL_warnhook; |
802 |
|
|
|
803 |
|
|
if (svp) |
804 |
|
|
{ |
805 |
|
|
SV *old = *svp; |
806 |
|
|
*svp = newSVsv (sv); |
807 |
|
|
SvREFCNT_dec (old); |
808 |
root |
1.231 |
return 0; |
809 |
root |
1.220 |
} |
810 |
|
|
} |
811 |
|
|
|
812 |
|
|
return orig_sigelem_set ? orig_sigelem_set (aTHX_ sv, mg) : 0; |
813 |
root |
1.214 |
} |
814 |
|
|
|
815 |
root |
1.13 |
static void |
816 |
root |
1.272 |
prepare_nop (aTHX_ struct coro_transfer_args *ta) |
817 |
|
|
{ |
818 |
|
|
/* kind of mega-hacky, but works */ |
819 |
|
|
ta->next = ta->prev = (struct coro *)ta; |
820 |
|
|
} |
821 |
|
|
|
822 |
|
|
static int |
823 |
|
|
slf_check_nop (aTHX) |
824 |
|
|
{ |
825 |
|
|
return 0; |
826 |
|
|
} |
827 |
|
|
|
828 |
|
|
static void |
829 |
root |
1.179 |
coro_setup (pTHX_ struct coro *coro) |
830 |
root |
1.13 |
{ |
831 |
root |
1.89 |
/* |
832 |
|
|
* emulate part of the perl startup here. |
833 |
|
|
*/ |
834 |
root |
1.146 |
coro_init_stacks (aTHX); |
835 |
root |
1.15 |
|
836 |
root |
1.169 |
PL_runops = RUNOPS_DEFAULT; |
837 |
root |
1.117 |
PL_curcop = &PL_compiling; |
838 |
|
|
PL_in_eval = EVAL_NULL; |
839 |
root |
1.142 |
PL_comppad = 0; |
840 |
root |
1.117 |
PL_curpm = 0; |
841 |
root |
1.196 |
PL_curpad = 0; |
842 |
root |
1.117 |
PL_localizing = 0; |
843 |
|
|
PL_dirty = 0; |
844 |
|
|
PL_restartop = 0; |
845 |
root |
1.229 |
#if PERL_VERSION_ATLEAST (5,10,0) |
846 |
root |
1.228 |
PL_parser = 0; |
847 |
|
|
#endif |
848 |
root |
1.214 |
|
849 |
|
|
/* recreate the die/warn hooks */ |
850 |
root |
1.220 |
PL_diehook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__DIE__" , sizeof ("__DIE__" ) - 1, 1), rv_diehook ); |
851 |
|
|
PL_warnhook = 0; SvSetMagicSV (*hv_fetch (hv_sig, "__WARN__", sizeof ("__WARN__") - 1, 1), rv_warnhook); |
852 |
root |
1.178 |
|
853 |
root |
1.191 |
GvSV (PL_defgv) = newSV (0); |
854 |
root |
1.178 |
GvAV (PL_defgv) = coro->args; coro->args = 0; |
855 |
root |
1.191 |
GvSV (PL_errgv) = newSV (0); |
856 |
root |
1.180 |
GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
857 |
root |
1.179 |
PL_rs = newSVsv (GvSV (irsgv)); |
858 |
root |
1.249 |
PL_defoutgv = (GV *)SvREFCNT_inc_NN (stdoutgv); |
859 |
root |
1.103 |
|
860 |
root |
1.102 |
{ |
861 |
|
|
dSP; |
862 |
root |
1.260 |
UNOP myop; |
863 |
root |
1.102 |
|
864 |
root |
1.260 |
Zero (&myop, 1, UNOP); |
865 |
root |
1.102 |
myop.op_next = Nullop; |
866 |
|
|
myop.op_flags = OPf_WANT_VOID; |
867 |
root |
1.89 |
|
868 |
root |
1.102 |
PUSHMARK (SP); |
869 |
root |
1.192 |
XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
870 |
root |
1.102 |
PUTBACK; |
871 |
root |
1.120 |
PL_op = (OP *)&myop; |
872 |
root |
1.102 |
PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
873 |
|
|
SPAGAIN; |
874 |
root |
1.117 |
} |
875 |
root |
1.210 |
|
876 |
|
|
/* this newly created coroutine might be run on an existing cctx which most |
877 |
root |
1.272 |
* likely was suspended in pp_slf, so we have to emulate entering pp_slf here. |
878 |
root |
1.210 |
*/ |
879 |
root |
1.272 |
slf_frame.prepare = prepare_nop; /* provide a nop function for an eventual pp_slf */ |
880 |
|
|
slf_frame.check = slf_check_nop; /* signal pp_slf to not repeat */ |
881 |
root |
1.13 |
} |
882 |
|
|
|
883 |
|
|
static void |
884 |
root |
1.253 |
coro_destruct (pTHX_ struct coro *coro) |
885 |
root |
1.178 |
{ |
886 |
|
|
if (!IN_DESTRUCT) |
887 |
|
|
{ |
888 |
|
|
/* restore all saved variables and stuff */ |
889 |
|
|
LEAVE_SCOPE (0); |
890 |
|
|
assert (PL_tmps_floor == -1); |
891 |
|
|
|
892 |
|
|
/* free all temporaries */ |
893 |
|
|
FREETMPS; |
894 |
|
|
assert (PL_tmps_ix == -1); |
895 |
|
|
|
896 |
|
|
/* unwind all extra stacks */ |
897 |
|
|
POPSTACK_TO (PL_mainstack); |
898 |
|
|
|
899 |
|
|
/* unwind main stack */ |
900 |
|
|
dounwind (-1); |
901 |
|
|
} |
902 |
|
|
|
903 |
|
|
SvREFCNT_dec (GvSV (PL_defgv)); |
904 |
|
|
SvREFCNT_dec (GvAV (PL_defgv)); |
905 |
|
|
SvREFCNT_dec (GvSV (PL_errgv)); |
906 |
root |
1.180 |
SvREFCNT_dec (PL_defoutgv); |
907 |
root |
1.178 |
SvREFCNT_dec (PL_rs); |
908 |
|
|
SvREFCNT_dec (GvSV (irsgv)); |
909 |
|
|
|
910 |
root |
1.198 |
SvREFCNT_dec (PL_diehook); |
911 |
|
|
SvREFCNT_dec (PL_warnhook); |
912 |
|
|
|
913 |
root |
1.184 |
SvREFCNT_dec (coro->saved_deffh); |
914 |
root |
1.196 |
SvREFCNT_dec (coro->throw); |
915 |
root |
1.181 |
|
916 |
root |
1.253 |
coro_destruct_stacks (aTHX); |
917 |
root |
1.178 |
} |
918 |
|
|
|
919 |
root |
1.263 |
INLINE void |
920 |
root |
1.146 |
free_coro_mortal (pTHX) |
921 |
root |
1.13 |
{ |
922 |
root |
1.194 |
if (expect_true (coro_mortal)) |
923 |
root |
1.15 |
{ |
924 |
root |
1.89 |
SvREFCNT_dec (coro_mortal); |
925 |
|
|
coro_mortal = 0; |
926 |
|
|
} |
927 |
root |
1.13 |
} |
928 |
|
|
|
929 |
root |
1.165 |
static int |
930 |
root |
1.169 |
runops_trace (pTHX) |
931 |
root |
1.165 |
{ |
932 |
|
|
COP *oldcop = 0; |
933 |
root |
1.167 |
int oldcxix = -2; |
934 |
root |
1.169 |
struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
935 |
|
|
coro_cctx *cctx = coro->cctx; |
936 |
root |
1.165 |
|
937 |
|
|
while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
938 |
|
|
{ |
939 |
|
|
PERL_ASYNC_CHECK (); |
940 |
|
|
|
941 |
root |
1.173 |
if (cctx->flags & CC_TRACE_ALL) |
942 |
root |
1.167 |
{ |
943 |
root |
1.173 |
if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
944 |
|
|
{ |
945 |
|
|
PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
946 |
|
|
SV **bot, **top; |
947 |
|
|
AV *av = newAV (); /* return values */ |
948 |
|
|
SV **cb; |
949 |
|
|
dSP; |
950 |
root |
1.167 |
|
951 |
root |
1.173 |
GV *gv = CvGV (cx->blk_sub.cv); |
952 |
|
|
SV *fullname = sv_2mortal (newSV (0)); |
953 |
|
|
if (isGV (gv)) |
954 |
|
|
gv_efullname3 (fullname, gv, 0); |
955 |
|
|
|
956 |
|
|
bot = PL_stack_base + cx->blk_oldsp + 1; |
957 |
|
|
top = cx->blk_gimme == G_ARRAY ? SP + 1 |
958 |
|
|
: cx->blk_gimme == G_SCALAR ? bot + 1 |
959 |
|
|
: bot; |
960 |
root |
1.167 |
|
961 |
root |
1.193 |
av_extend (av, top - bot); |
962 |
root |
1.173 |
while (bot < top) |
963 |
root |
1.249 |
av_push (av, SvREFCNT_inc_NN (*bot++)); |
964 |
root |
1.167 |
|
965 |
root |
1.173 |
PL_runops = RUNOPS_DEFAULT; |
966 |
root |
1.167 |
ENTER; |
967 |
|
|
SAVETMPS; |
968 |
|
|
EXTEND (SP, 3); |
969 |
root |
1.173 |
PUSHMARK (SP); |
970 |
|
|
PUSHs (&PL_sv_no); |
971 |
|
|
PUSHs (fullname); |
972 |
|
|
PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
973 |
|
|
PUTBACK; |
974 |
root |
1.212 |
cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
975 |
root |
1.173 |
if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
976 |
|
|
SPAGAIN; |
977 |
|
|
FREETMPS; |
978 |
|
|
LEAVE; |
979 |
|
|
PL_runops = runops_trace; |
980 |
|
|
} |
981 |
|
|
|
982 |
|
|
if (oldcop != PL_curcop) |
983 |
|
|
{ |
984 |
|
|
oldcop = PL_curcop; |
985 |
root |
1.167 |
|
986 |
root |
1.173 |
if (PL_curcop != &PL_compiling) |
987 |
root |
1.167 |
{ |
988 |
root |
1.173 |
SV **cb; |
989 |
|
|
|
990 |
|
|
if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
991 |
|
|
{ |
992 |
|
|
PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
993 |
|
|
|
994 |
|
|
if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
995 |
|
|
{ |
996 |
|
|
runops_proc_t old_runops = PL_runops; |
997 |
|
|
dSP; |
998 |
|
|
GV *gv = CvGV (cx->blk_sub.cv); |
999 |
|
|
SV *fullname = sv_2mortal (newSV (0)); |
1000 |
|
|
|
1001 |
|
|
if (isGV (gv)) |
1002 |
|
|
gv_efullname3 (fullname, gv, 0); |
1003 |
|
|
|
1004 |
|
|
PL_runops = RUNOPS_DEFAULT; |
1005 |
|
|
ENTER; |
1006 |
|
|
SAVETMPS; |
1007 |
|
|
EXTEND (SP, 3); |
1008 |
|
|
PUSHMARK (SP); |
1009 |
|
|
PUSHs (&PL_sv_yes); |
1010 |
|
|
PUSHs (fullname); |
1011 |
root |
1.223 |
PUSHs (CxHASARGS (cx) ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
1012 |
root |
1.173 |
PUTBACK; |
1013 |
root |
1.212 |
cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
1014 |
root |
1.173 |
if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1015 |
|
|
SPAGAIN; |
1016 |
|
|
FREETMPS; |
1017 |
|
|
LEAVE; |
1018 |
|
|
PL_runops = runops_trace; |
1019 |
|
|
} |
1020 |
|
|
|
1021 |
|
|
oldcxix = cxstack_ix; |
1022 |
|
|
} |
1023 |
root |
1.167 |
|
1024 |
root |
1.173 |
if (cctx->flags & CC_TRACE_LINE) |
1025 |
root |
1.167 |
{ |
1026 |
root |
1.173 |
dSP; |
1027 |
root |
1.167 |
|
1028 |
root |
1.173 |
PL_runops = RUNOPS_DEFAULT; |
1029 |
|
|
ENTER; |
1030 |
|
|
SAVETMPS; |
1031 |
|
|
EXTEND (SP, 3); |
1032 |
|
|
PL_runops = RUNOPS_DEFAULT; |
1033 |
root |
1.167 |
PUSHMARK (SP); |
1034 |
root |
1.173 |
PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
1035 |
|
|
PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
1036 |
root |
1.167 |
PUTBACK; |
1037 |
root |
1.212 |
cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
1038 |
root |
1.169 |
if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
1039 |
root |
1.167 |
SPAGAIN; |
1040 |
root |
1.173 |
FREETMPS; |
1041 |
|
|
LEAVE; |
1042 |
|
|
PL_runops = runops_trace; |
1043 |
root |
1.167 |
} |
1044 |
root |
1.169 |
} |
1045 |
root |
1.167 |
} |
1046 |
root |
1.165 |
} |
1047 |
|
|
} |
1048 |
|
|
|
1049 |
|
|
TAINT_NOT; |
1050 |
|
|
return 0; |
1051 |
|
|
} |
1052 |
|
|
|
1053 |
root |
1.260 |
static void |
1054 |
root |
1.272 |
prepare_set_stacklevel (struct coro_transfer_args *ta, struct coro_cctx *cctx) |
1055 |
root |
1.260 |
{ |
1056 |
|
|
ta->prev = (struct coro *)cctx; |
1057 |
|
|
ta->next = 0; |
1058 |
|
|
} |
1059 |
|
|
|
1060 |
root |
1.120 |
/* inject a fake call to Coro::State::_cctx_init into the execution */ |
1061 |
root |
1.150 |
/* _cctx_init should be careful, as it could be called at almost any time */ |
1062 |
|
|
/* during execution of a perl program */ |
1063 |
root |
1.259 |
/* also initialises PL_top_env */ |
1064 |
root |
1.100 |
static void NOINLINE |
1065 |
root |
1.201 |
cctx_prepare (pTHX_ coro_cctx *cctx) |
1066 |
root |
1.99 |
{ |
1067 |
|
|
dSP; |
1068 |
root |
1.260 |
UNOP myop; |
1069 |
root |
1.99 |
|
1070 |
root |
1.165 |
PL_top_env = &PL_start_env; |
1071 |
|
|
|
1072 |
|
|
if (cctx->flags & CC_TRACE) |
1073 |
root |
1.169 |
PL_runops = runops_trace; |
1074 |
root |
1.165 |
|
1075 |
root |
1.260 |
Zero (&myop, 1, UNOP); |
1076 |
|
|
myop.op_next = PL_op; |
1077 |
root |
1.120 |
myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
1078 |
root |
1.102 |
|
1079 |
|
|
PUSHMARK (SP); |
1080 |
root |
1.120 |
EXTEND (SP, 2); |
1081 |
root |
1.260 |
PUSHs (sv_2mortal (newSViv ((IV)cctx))); |
1082 |
root |
1.120 |
PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
1083 |
root |
1.99 |
PUTBACK; |
1084 |
root |
1.120 |
PL_op = (OP *)&myop; |
1085 |
|
|
PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
1086 |
root |
1.99 |
SPAGAIN; |
1087 |
|
|
} |
1088 |
|
|
|
1089 |
root |
1.262 |
/* the tail of transfer: execute stuff we can only do after a transfer */ |
1090 |
root |
1.263 |
INLINE void |
1091 |
root |
1.262 |
transfer_tail (pTHX) |
1092 |
root |
1.259 |
{ |
1093 |
root |
1.260 |
struct coro *next = (struct coro *)transfer_next; |
1094 |
root |
1.263 |
assert (!(transfer_next = 0)); /* just used for the side effect when asserts are enabled */ |
1095 |
root |
1.264 |
assert (("FATAL: next coroutine was zero in transfer_tail (please report)", next)); |
1096 |
root |
1.260 |
|
1097 |
|
|
free_coro_mortal (aTHX); |
1098 |
root |
1.259 |
UNLOCK; |
1099 |
|
|
|
1100 |
root |
1.260 |
if (expect_false (next->throw)) |
1101 |
root |
1.259 |
{ |
1102 |
root |
1.260 |
SV *exception = sv_2mortal (next->throw); |
1103 |
root |
1.259 |
|
1104 |
root |
1.260 |
next->throw = 0; |
1105 |
|
|
sv_setsv (ERRSV, exception); |
1106 |
|
|
croak (0); |
1107 |
root |
1.259 |
} |
1108 |
|
|
} |
1109 |
|
|
|
1110 |
root |
1.148 |
/* |
1111 |
|
|
* this is a _very_ stripped down perl interpreter ;) |
1112 |
|
|
*/ |
1113 |
root |
1.99 |
static void |
1114 |
root |
1.201 |
cctx_run (void *arg) |
1115 |
root |
1.13 |
{ |
1116 |
root |
1.256 |
#ifdef USE_ITHREADS |
1117 |
|
|
# if CORO_PTHREAD |
1118 |
|
|
PERL_SET_CONTEXT (coro_thx); |
1119 |
|
|
# endif |
1120 |
|
|
#endif |
1121 |
|
|
{ |
1122 |
|
|
dTHX; |
1123 |
root |
1.146 |
|
1124 |
root |
1.272 |
/* normally we would need to skip the entersub here */ |
1125 |
|
|
/* not doing so will re-execute it, which is exactly what we want */ |
1126 |
|
|
/* PL_nop = PL_nop->op_next */ |
1127 |
root |
1.107 |
|
1128 |
root |
1.256 |
/* inject a fake subroutine call to cctx_init */ |
1129 |
|
|
cctx_prepare (aTHX_ (coro_cctx *)arg); |
1130 |
root |
1.89 |
|
1131 |
root |
1.260 |
/* cctx_run is the alternative tail of transfer() */ |
1132 |
root |
1.272 |
/* TODO: throwing an exception here might be deadly, VERIFY */ |
1133 |
root |
1.262 |
transfer_tail (aTHX); |
1134 |
root |
1.259 |
|
1135 |
root |
1.256 |
/* somebody or something will hit me for both perl_run and PL_restartop */ |
1136 |
|
|
PL_restartop = PL_op; |
1137 |
|
|
perl_run (PL_curinterp); |
1138 |
root |
1.89 |
|
1139 |
root |
1.256 |
/* |
1140 |
|
|
* If perl-run returns we assume exit() was being called or the coro |
1141 |
|
|
* fell off the end, which seems to be the only valid (non-bug) |
1142 |
|
|
* reason for perl_run to return. We try to exit by jumping to the |
1143 |
|
|
* bootstrap-time "top" top_env, as we cannot restore the "main" |
1144 |
|
|
* coroutine as Coro has no such concept |
1145 |
|
|
*/ |
1146 |
|
|
PL_top_env = main_top_env; |
1147 |
|
|
JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
1148 |
|
|
} |
1149 |
root |
1.89 |
} |
1150 |
|
|
|
1151 |
root |
1.106 |
static coro_cctx * |
1152 |
|
|
cctx_new () |
1153 |
root |
1.89 |
{ |
1154 |
root |
1.106 |
coro_cctx *cctx; |
1155 |
root |
1.89 |
|
1156 |
root |
1.107 |
++cctx_count; |
1157 |
root |
1.258 |
New (0, cctx, 1, coro_cctx); |
1158 |
|
|
|
1159 |
root |
1.259 |
cctx->gen = cctx_gen; |
1160 |
|
|
cctx->flags = 0; |
1161 |
root |
1.260 |
cctx->idle_sp = 0; /* can be accessed by transfer between cctx_run and set_stacklevel, on throw */ |
1162 |
root |
1.258 |
|
1163 |
|
|
return cctx; |
1164 |
|
|
} |
1165 |
|
|
|
1166 |
|
|
/* create a new cctx only suitable as source */ |
1167 |
|
|
static coro_cctx * |
1168 |
|
|
cctx_new_empty () |
1169 |
|
|
{ |
1170 |
|
|
coro_cctx *cctx = cctx_new (); |
1171 |
root |
1.89 |
|
1172 |
root |
1.259 |
cctx->sptr = 0; |
1173 |
root |
1.258 |
coro_create (&cctx->cctx, 0, 0, 0, 0); |
1174 |
|
|
|
1175 |
|
|
return cctx; |
1176 |
|
|
} |
1177 |
|
|
|
1178 |
|
|
/* create a new cctx suitable as destination/running a perl interpreter */ |
1179 |
|
|
static coro_cctx * |
1180 |
|
|
cctx_new_run () |
1181 |
|
|
{ |
1182 |
|
|
coro_cctx *cctx = cctx_new (); |
1183 |
|
|
void *stack_start; |
1184 |
|
|
size_t stack_size; |
1185 |
root |
1.254 |
|
1186 |
root |
1.89 |
#if HAVE_MMAP |
1187 |
root |
1.254 |
cctx->ssize = ((cctx_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
1188 |
root |
1.120 |
/* mmap supposedly does allocate-on-write for us */ |
1189 |
root |
1.106 |
cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
1190 |
root |
1.19 |
|
1191 |
root |
1.141 |
if (cctx->sptr != (void *)-1) |
1192 |
root |
1.13 |
{ |
1193 |
root |
1.263 |
#if CORO_STACKGUARD |
1194 |
|
|
mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
1195 |
|
|
#endif |
1196 |
|
|
stack_start = (char *)cctx->sptr + CORO_STACKGUARD * PAGESIZE; |
1197 |
|
|
stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
1198 |
root |
1.165 |
cctx->flags |= CC_MAPPED; |
1199 |
root |
1.141 |
} |
1200 |
|
|
else |
1201 |
|
|
#endif |
1202 |
root |
1.89 |
{ |
1203 |
root |
1.254 |
cctx->ssize = cctx_stacksize * (long)sizeof (long); |
1204 |
|
|
New (0, cctx->sptr, cctx_stacksize, long); |
1205 |
root |
1.13 |
|
1206 |
root |
1.141 |
if (!cctx->sptr) |
1207 |
|
|
{ |
1208 |
root |
1.264 |
perror ("FATAL: unable to allocate stack for coroutine, exiting."); |
1209 |
root |
1.141 |
_exit (EXIT_FAILURE); |
1210 |
|
|
} |
1211 |
root |
1.89 |
|
1212 |
root |
1.145 |
stack_start = cctx->sptr; |
1213 |
|
|
stack_size = cctx->ssize; |
1214 |
|
|
} |
1215 |
root |
1.104 |
|
1216 |
root |
1.263 |
#if CORO_USE_VALGRIND |
1217 |
|
|
cctx->valgrind_id = VALGRIND_STACK_REGISTER ((char *)stack_start, (char *)stack_start + stack_size); |
1218 |
|
|
#endif |
1219 |
|
|
|
1220 |
root |
1.201 |
coro_create (&cctx->cctx, cctx_run, (void *)cctx, stack_start, stack_size); |
1221 |
root |
1.13 |
|
1222 |
root |
1.106 |
return cctx; |
1223 |
root |
1.13 |
} |
1224 |
|
|
|
1225 |
root |
1.15 |
static void |
1226 |
root |
1.115 |
cctx_destroy (coro_cctx *cctx) |
1227 |
root |
1.15 |
{ |
1228 |
root |
1.106 |
if (!cctx) |
1229 |
root |
1.89 |
return; |
1230 |
|
|
|
1231 |
root |
1.107 |
--cctx_count; |
1232 |
root |
1.253 |
coro_destroy (&cctx->cctx); |
1233 |
root |
1.107 |
|
1234 |
root |
1.253 |
/* coro_transfer creates new, empty cctx's */ |
1235 |
|
|
if (cctx->sptr) |
1236 |
|
|
{ |
1237 |
root |
1.263 |
#if CORO_USE_VALGRIND |
1238 |
|
|
VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
1239 |
|
|
#endif |
1240 |
root |
1.104 |
|
1241 |
root |
1.89 |
#if HAVE_MMAP |
1242 |
root |
1.253 |
if (cctx->flags & CC_MAPPED) |
1243 |
|
|
munmap (cctx->sptr, cctx->ssize); |
1244 |
|
|
else |
1245 |
root |
1.89 |
#endif |
1246 |
root |
1.253 |
Safefree (cctx->sptr); |
1247 |
|
|
} |
1248 |
root |
1.89 |
|
1249 |
root |
1.106 |
Safefree (cctx); |
1250 |
root |
1.89 |
} |
1251 |
root |
1.32 |
|
1252 |
root |
1.193 |
/* wether this cctx should be destructed */ |
1253 |
root |
1.254 |
#define CCTX_EXPIRED(cctx) ((cctx)->gen != cctx_gen || ((cctx)->flags & CC_NOREUSE)) |
1254 |
root |
1.193 |
|
1255 |
root |
1.106 |
static coro_cctx * |
1256 |
root |
1.211 |
cctx_get (pTHX) |
1257 |
root |
1.89 |
{ |
1258 |
root |
1.211 |
while (expect_true (cctx_first)) |
1259 |
root |
1.89 |
{ |
1260 |
root |
1.211 |
coro_cctx *cctx = cctx_first; |
1261 |
|
|
cctx_first = cctx->next; |
1262 |
|
|
--cctx_idle; |
1263 |
root |
1.145 |
|
1264 |
root |
1.194 |
if (expect_true (!CCTX_EXPIRED (cctx))) |
1265 |
root |
1.145 |
return cctx; |
1266 |
|
|
|
1267 |
|
|
cctx_destroy (cctx); |
1268 |
root |
1.89 |
} |
1269 |
root |
1.91 |
|
1270 |
root |
1.258 |
return cctx_new_run (); |
1271 |
root |
1.89 |
} |
1272 |
root |
1.19 |
|
1273 |
root |
1.89 |
static void |
1274 |
root |
1.211 |
cctx_put (coro_cctx *cctx) |
1275 |
root |
1.89 |
{ |
1276 |
root |
1.263 |
assert (("FATAL: cctx_put called on non-initialised cctx in Coro (please report)", cctx->sptr)); |
1277 |
root |
1.253 |
|
1278 |
root |
1.115 |
/* free another cctx if overlimit */ |
1279 |
root |
1.254 |
if (expect_false (cctx_idle >= cctx_max_idle)) |
1280 |
root |
1.115 |
{ |
1281 |
root |
1.211 |
coro_cctx *first = cctx_first; |
1282 |
|
|
cctx_first = first->next; |
1283 |
|
|
--cctx_idle; |
1284 |
root |
1.115 |
|
1285 |
|
|
cctx_destroy (first); |
1286 |
|
|
} |
1287 |
|
|
|
1288 |
root |
1.211 |
++cctx_idle; |
1289 |
|
|
cctx->next = cctx_first; |
1290 |
|
|
cctx_first = cctx; |
1291 |
root |
1.15 |
} |
1292 |
|
|
|
1293 |
root |
1.137 |
/** coroutine switching *****************************************************/ |
1294 |
|
|
|
1295 |
root |
1.194 |
static void |
1296 |
root |
1.170 |
transfer_check (pTHX_ struct coro *prev, struct coro *next) |
1297 |
|
|
{ |
1298 |
root |
1.194 |
if (expect_true (prev != next)) |
1299 |
root |
1.170 |
{ |
1300 |
root |
1.194 |
if (expect_false (!(prev->flags & (CF_RUNNING | CF_NEW)))) |
1301 |
root |
1.273 |
croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states,"); |
1302 |
root |
1.170 |
|
1303 |
root |
1.194 |
if (expect_false (next->flags & CF_RUNNING)) |
1304 |
root |
1.273 |
croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states,"); |
1305 |
root |
1.170 |
|
1306 |
root |
1.194 |
if (expect_false (next->flags & CF_DESTROYED)) |
1307 |
root |
1.273 |
croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states,"); |
1308 |
root |
1.170 |
|
1309 |
root |
1.228 |
#if !PERL_VERSION_ATLEAST (5,10,0) |
1310 |
root |
1.230 |
if (expect_false (PL_lex_state != LEX_NOTPARSING)) |
1311 |
root |
1.273 |
croak ("Coro::State::transfer called while parsing, but this is not supported in your perl version,"); |
1312 |
root |
1.198 |
#endif |
1313 |
root |
1.170 |
} |
1314 |
|
|
} |
1315 |
|
|
|
1316 |
|
|
/* always use the TRANSFER macro */ |
1317 |
root |
1.100 |
static void NOINLINE |
1318 |
root |
1.227 |
transfer (pTHX_ struct coro *prev, struct coro *next, int force_cctx) |
1319 |
root |
1.8 |
{ |
1320 |
root |
1.15 |
dSTACKLEVEL; |
1321 |
root |
1.8 |
|
1322 |
root |
1.89 |
/* sometimes transfer is only called to set idle_sp */ |
1323 |
root |
1.194 |
if (expect_false (!next)) |
1324 |
root |
1.124 |
{ |
1325 |
root |
1.268 |
((coro_cctx *)prev)->idle_sp = stacklevel; |
1326 |
root |
1.132 |
assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
1327 |
root |
1.124 |
} |
1328 |
root |
1.194 |
else if (expect_true (prev != next)) |
1329 |
root |
1.8 |
{ |
1330 |
root |
1.106 |
coro_cctx *prev__cctx; |
1331 |
root |
1.89 |
|
1332 |
root |
1.194 |
if (expect_false (prev->flags & CF_NEW)) |
1333 |
root |
1.111 |
{ |
1334 |
root |
1.253 |
/* create a new empty/source context */ |
1335 |
root |
1.258 |
prev->cctx = cctx_new_empty (); |
1336 |
root |
1.117 |
prev->flags &= ~CF_NEW; |
1337 |
|
|
prev->flags |= CF_RUNNING; |
1338 |
root |
1.111 |
} |
1339 |
|
|
|
1340 |
|
|
prev->flags &= ~CF_RUNNING; |
1341 |
|
|
next->flags |= CF_RUNNING; |
1342 |
|
|
|
1343 |
root |
1.92 |
LOCK; |
1344 |
root |
1.13 |
|
1345 |
root |
1.214 |
/* first get rid of the old state */ |
1346 |
|
|
save_perl (aTHX_ prev); |
1347 |
|
|
|
1348 |
root |
1.194 |
if (expect_false (next->flags & CF_NEW)) |
1349 |
root |
1.90 |
{ |
1350 |
|
|
/* need to start coroutine */ |
1351 |
root |
1.117 |
next->flags &= ~CF_NEW; |
1352 |
root |
1.89 |
/* setup coroutine call */ |
1353 |
root |
1.179 |
coro_setup (aTHX_ next); |
1354 |
root |
1.8 |
} |
1355 |
root |
1.118 |
else |
1356 |
root |
1.214 |
load_perl (aTHX_ next); |
1357 |
root |
1.15 |
|
1358 |
root |
1.106 |
prev__cctx = prev->cctx; |
1359 |
root |
1.92 |
|
1360 |
root |
1.261 |
/* possibly untie and reuse the cctx */ |
1361 |
root |
1.227 |
if (expect_true ( |
1362 |
root |
1.268 |
prev__cctx->idle_sp == stacklevel |
1363 |
root |
1.227 |
&& !(prev__cctx->flags & CC_TRACE) |
1364 |
|
|
&& !force_cctx |
1365 |
|
|
)) |
1366 |
root |
1.92 |
{ |
1367 |
root |
1.268 |
/* I assume that stacklevel is a stronger indicator than PL_top_env changes */ |
1368 |
root |
1.263 |
assert (("FATAL: current top_env must equal previous top_env in Coro (please report)", PL_top_env == prev__cctx->idle_te)); |
1369 |
root |
1.112 |
|
1370 |
root |
1.117 |
prev->cctx = 0; |
1371 |
|
|
|
1372 |
root |
1.193 |
/* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
1373 |
root |
1.194 |
/* without this the next cctx_get might destroy the prev__cctx while still in use */ |
1374 |
|
|
if (expect_false (CCTX_EXPIRED (prev__cctx))) |
1375 |
root |
1.201 |
if (!next->cctx) |
1376 |
root |
1.211 |
next->cctx = cctx_get (aTHX); |
1377 |
root |
1.193 |
|
1378 |
root |
1.211 |
cctx_put (prev__cctx); |
1379 |
root |
1.92 |
} |
1380 |
|
|
|
1381 |
root |
1.172 |
++next->usecount; |
1382 |
|
|
|
1383 |
root |
1.194 |
if (expect_true (!next->cctx)) |
1384 |
root |
1.211 |
next->cctx = cctx_get (aTHX); |
1385 |
root |
1.111 |
|
1386 |
root |
1.263 |
assert (("FATAL: transfer_next already nonzero in Coro (please report)", !transfer_next)); |
1387 |
root |
1.260 |
transfer_next = next; |
1388 |
root |
1.216 |
|
1389 |
root |
1.194 |
if (expect_false (prev__cctx != next->cctx)) |
1390 |
root |
1.117 |
{ |
1391 |
root |
1.106 |
prev__cctx->top_env = PL_top_env; |
1392 |
|
|
PL_top_env = next->cctx->top_env; |
1393 |
|
|
coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
1394 |
root |
1.92 |
} |
1395 |
|
|
|
1396 |
root |
1.262 |
transfer_tail (aTHX); |
1397 |
root |
1.8 |
} |
1398 |
root |
1.39 |
} |
1399 |
root |
1.23 |
|
1400 |
root |
1.227 |
#define TRANSFER(ta, force_cctx) transfer (aTHX_ (ta).prev, (ta).next, (force_cctx)) |
1401 |
root |
1.170 |
#define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
1402 |
root |
1.92 |
|
1403 |
root |
1.137 |
/** high level stuff ********************************************************/ |
1404 |
|
|
|
1405 |
root |
1.133 |
static int |
1406 |
root |
1.146 |
coro_state_destroy (pTHX_ struct coro *coro) |
1407 |
root |
1.87 |
{ |
1408 |
root |
1.133 |
if (coro->flags & CF_DESTROYED) |
1409 |
|
|
return 0; |
1410 |
|
|
|
1411 |
|
|
coro->flags |= CF_DESTROYED; |
1412 |
root |
1.137 |
|
1413 |
|
|
if (coro->flags & CF_READY) |
1414 |
|
|
{ |
1415 |
|
|
/* reduce nready, as destroying a ready coro effectively unreadies it */ |
1416 |
root |
1.139 |
/* alternative: look through all ready queues and remove the coro */ |
1417 |
root |
1.137 |
LOCK; |
1418 |
|
|
--coro_nready; |
1419 |
|
|
UNLOCK; |
1420 |
|
|
} |
1421 |
|
|
else |
1422 |
|
|
coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
1423 |
root |
1.87 |
|
1424 |
|
|
if (coro->mainstack && coro->mainstack != main_mainstack) |
1425 |
|
|
{ |
1426 |
root |
1.140 |
struct coro temp; |
1427 |
|
|
|
1428 |
root |
1.273 |
assert (("FATAL: tried to destroy currently running coroutine (please report)", !(coro->flags & CF_RUNNING))); |
1429 |
root |
1.133 |
|
1430 |
root |
1.146 |
save_perl (aTHX_ &temp); |
1431 |
|
|
load_perl (aTHX_ coro); |
1432 |
root |
1.87 |
|
1433 |
root |
1.253 |
coro_destruct (aTHX_ coro); |
1434 |
root |
1.87 |
|
1435 |
root |
1.198 |
load_perl (aTHX_ &temp); |
1436 |
root |
1.87 |
|
1437 |
root |
1.198 |
coro->slot = 0; |
1438 |
root |
1.87 |
} |
1439 |
|
|
|
1440 |
root |
1.115 |
cctx_destroy (coro->cctx); |
1441 |
root |
1.87 |
SvREFCNT_dec (coro->args); |
1442 |
root |
1.133 |
|
1443 |
root |
1.151 |
if (coro->next) coro->next->prev = coro->prev; |
1444 |
|
|
if (coro->prev) coro->prev->next = coro->next; |
1445 |
root |
1.153 |
if (coro == coro_first) coro_first = coro->next; |
1446 |
root |
1.151 |
|
1447 |
root |
1.133 |
return 1; |
1448 |
root |
1.87 |
} |
1449 |
|
|
|
1450 |
|
|
static int |
1451 |
root |
1.134 |
coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
1452 |
root |
1.87 |
{ |
1453 |
|
|
struct coro *coro = (struct coro *)mg->mg_ptr; |
1454 |
|
|
mg->mg_ptr = 0; |
1455 |
|
|
|
1456 |
root |
1.151 |
coro->hv = 0; |
1457 |
|
|
|
1458 |
root |
1.134 |
if (--coro->refcnt < 0) |
1459 |
|
|
{ |
1460 |
root |
1.146 |
coro_state_destroy (aTHX_ coro); |
1461 |
root |
1.134 |
Safefree (coro); |
1462 |
|
|
} |
1463 |
root |
1.133 |
|
1464 |
root |
1.87 |
return 0; |
1465 |
|
|
} |
1466 |
|
|
|
1467 |
|
|
static int |
1468 |
root |
1.98 |
coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
1469 |
root |
1.87 |
{ |
1470 |
|
|
struct coro *coro = (struct coro *)mg->mg_ptr; |
1471 |
|
|
|
1472 |
|
|
++coro->refcnt; |
1473 |
|
|
|
1474 |
|
|
return 0; |
1475 |
|
|
} |
1476 |
|
|
|
1477 |
root |
1.100 |
static MGVTBL coro_state_vtbl = { |
1478 |
|
|
0, 0, 0, 0, |
1479 |
root |
1.134 |
coro_state_free, |
1480 |
root |
1.100 |
0, |
1481 |
|
|
#ifdef MGf_DUP |
1482 |
|
|
coro_state_dup, |
1483 |
root |
1.102 |
#else |
1484 |
|
|
# define MGf_DUP 0 |
1485 |
root |
1.100 |
#endif |
1486 |
|
|
}; |
1487 |
root |
1.87 |
|
1488 |
root |
1.23 |
static void |
1489 |
root |
1.272 |
prepare_transfer (pTHX_ struct coro_transfer_args *ta, SV *prev_sv, SV *next_sv) |
1490 |
root |
1.23 |
{ |
1491 |
root |
1.122 |
ta->prev = SvSTATE (prev_sv); |
1492 |
|
|
ta->next = SvSTATE (next_sv); |
1493 |
root |
1.170 |
TRANSFER_CHECK (*ta); |
1494 |
root |
1.92 |
} |
1495 |
|
|
|
1496 |
|
|
static void |
1497 |
root |
1.270 |
api_transfer (pTHX_ SV *prev_sv, SV *next_sv) |
1498 |
root |
1.92 |
{ |
1499 |
root |
1.272 |
struct coro_transfer_args ta; |
1500 |
root |
1.92 |
|
1501 |
root |
1.146 |
prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
1502 |
root |
1.227 |
TRANSFER (ta, 1); |
1503 |
root |
1.21 |
} |
1504 |
|
|
|
1505 |
root |
1.22 |
/** Coro ********************************************************************/ |
1506 |
|
|
|
1507 |
|
|
static void |
1508 |
root |
1.146 |
coro_enq (pTHX_ SV *coro_sv) |
1509 |
root |
1.22 |
{ |
1510 |
root |
1.112 |
av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
1511 |
root |
1.22 |
} |
1512 |
|
|
|
1513 |
|
|
static SV * |
1514 |
root |
1.218 |
coro_deq (pTHX) |
1515 |
root |
1.22 |
{ |
1516 |
root |
1.218 |
int prio; |
1517 |
root |
1.22 |
|
1518 |
root |
1.218 |
for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= 0; ) |
1519 |
root |
1.83 |
if (AvFILLp (coro_ready [prio]) >= 0) |
1520 |
root |
1.137 |
return av_shift (coro_ready [prio]); |
1521 |
root |
1.22 |
|
1522 |
|
|
return 0; |
1523 |
|
|
} |
1524 |
|
|
|
1525 |
root |
1.111 |
static int |
1526 |
root |
1.270 |
api_ready (pTHX_ SV *coro_sv) |
1527 |
root |
1.23 |
{ |
1528 |
root |
1.111 |
struct coro *coro; |
1529 |
root |
1.237 |
SV *sv_hook; |
1530 |
|
|
void (*xs_hook)(void); |
1531 |
root |
1.111 |
|
1532 |
|
|
if (SvROK (coro_sv)) |
1533 |
|
|
coro_sv = SvRV (coro_sv); |
1534 |
|
|
|
1535 |
|
|
coro = SvSTATE (coro_sv); |
1536 |
root |
1.112 |
|
1537 |
root |
1.111 |
if (coro->flags & CF_READY) |
1538 |
|
|
return 0; |
1539 |
pcg |
1.56 |
|
1540 |
root |
1.111 |
coro->flags |= CF_READY; |
1541 |
root |
1.39 |
|
1542 |
pcg |
1.55 |
LOCK; |
1543 |
root |
1.233 |
|
1544 |
root |
1.237 |
sv_hook = coro_nready ? 0 : coro_readyhook; |
1545 |
|
|
xs_hook = coro_nready ? 0 : coroapi.readyhook; |
1546 |
root |
1.233 |
|
1547 |
root |
1.249 |
coro_enq (aTHX_ SvREFCNT_inc_NN (coro_sv)); |
1548 |
root |
1.137 |
++coro_nready; |
1549 |
root |
1.233 |
|
1550 |
pcg |
1.55 |
UNLOCK; |
1551 |
root |
1.233 |
|
1552 |
root |
1.237 |
if (sv_hook) |
1553 |
root |
1.233 |
{ |
1554 |
|
|
dSP; |
1555 |
|
|
|
1556 |
|
|
ENTER; |
1557 |
|
|
SAVETMPS; |
1558 |
|
|
|
1559 |
|
|
PUSHMARK (SP); |
1560 |
|
|
PUTBACK; |
1561 |
root |
1.237 |
call_sv (sv_hook, G_DISCARD); |
1562 |
root |
1.233 |
SPAGAIN; |
1563 |
|
|
|
1564 |
|
|
FREETMPS; |
1565 |
|
|
LEAVE; |
1566 |
|
|
} |
1567 |
root |
1.111 |
|
1568 |
root |
1.237 |
if (xs_hook) |
1569 |
|
|
xs_hook (); |
1570 |
|
|
|
1571 |
root |
1.111 |
return 1; |
1572 |
|
|
} |
1573 |
|
|
|
1574 |
|
|
static int |
1575 |
root |
1.270 |
api_is_ready (pTHX_ SV *coro_sv) |
1576 |
root |
1.111 |
{ |
1577 |
root |
1.130 |
return !!(SvSTATE (coro_sv)->flags & CF_READY); |
1578 |
root |
1.23 |
} |
1579 |
|
|
|
1580 |
root |
1.263 |
INLINE void |
1581 |
root |
1.272 |
prepare_schedule (pTHX_ struct coro_transfer_args *ta) |
1582 |
root |
1.23 |
{ |
1583 |
root |
1.133 |
SV *prev_sv, *next_sv; |
1584 |
root |
1.88 |
|
1585 |
|
|
for (;;) |
1586 |
|
|
{ |
1587 |
|
|
LOCK; |
1588 |
root |
1.218 |
next_sv = coro_deq (aTHX); |
1589 |
root |
1.88 |
|
1590 |
root |
1.133 |
/* nothing to schedule: call the idle handler */ |
1591 |
root |
1.194 |
if (expect_false (!next_sv)) |
1592 |
root |
1.133 |
{ |
1593 |
root |
1.140 |
dSP; |
1594 |
root |
1.138 |
UNLOCK; |
1595 |
root |
1.133 |
|
1596 |
|
|
ENTER; |
1597 |
|
|
SAVETMPS; |
1598 |
root |
1.23 |
|
1599 |
root |
1.133 |
PUSHMARK (SP); |
1600 |
|
|
PUTBACK; |
1601 |
|
|
call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
1602 |
root |
1.219 |
SPAGAIN; |
1603 |
root |
1.133 |
|
1604 |
|
|
FREETMPS; |
1605 |
|
|
LEAVE; |
1606 |
|
|
continue; |
1607 |
|
|
} |
1608 |
root |
1.88 |
|
1609 |
root |
1.133 |
ta->next = SvSTATE (next_sv); |
1610 |
pcg |
1.55 |
|
1611 |
root |
1.133 |
/* cannot transfer to destroyed coros, skip and look for next */ |
1612 |
root |
1.194 |
if (expect_false (ta->next->flags & CF_DESTROYED)) |
1613 |
root |
1.133 |
{ |
1614 |
root |
1.138 |
UNLOCK; |
1615 |
root |
1.133 |
SvREFCNT_dec (next_sv); |
1616 |
root |
1.260 |
/* coro_nready has already been taken care of by destroy */ |
1617 |
root |
1.133 |
continue; |
1618 |
|
|
} |
1619 |
root |
1.23 |
|
1620 |
root |
1.137 |
--coro_nready; |
1621 |
|
|
UNLOCK; |
1622 |
root |
1.133 |
break; |
1623 |
root |
1.88 |
} |
1624 |
|
|
|
1625 |
root |
1.133 |
/* free this only after the transfer */ |
1626 |
|
|
prev_sv = SvRV (coro_current); |
1627 |
|
|
ta->prev = SvSTATE (prev_sv); |
1628 |
root |
1.170 |
TRANSFER_CHECK (*ta); |
1629 |
root |
1.263 |
assert (("FATAL: next coroutine isn't marked as ready in Coro (please report)", ta->next->flags & CF_READY)); |
1630 |
root |
1.133 |
ta->next->flags &= ~CF_READY; |
1631 |
root |
1.170 |
SvRV_set (coro_current, next_sv); |
1632 |
root |
1.23 |
|
1633 |
root |
1.99 |
LOCK; |
1634 |
root |
1.146 |
free_coro_mortal (aTHX); |
1635 |
root |
1.133 |
coro_mortal = prev_sv; |
1636 |
root |
1.99 |
UNLOCK; |
1637 |
root |
1.92 |
} |
1638 |
|
|
|
1639 |
root |
1.263 |
INLINE void |
1640 |
root |
1.272 |
prepare_cede (pTHX_ struct coro_transfer_args *ta) |
1641 |
root |
1.92 |
{ |
1642 |
root |
1.270 |
api_ready (aTHX_ coro_current); |
1643 |
root |
1.146 |
prepare_schedule (aTHX_ ta); |
1644 |
root |
1.131 |
} |
1645 |
pcg |
1.55 |
|
1646 |
root |
1.272 |
INLINE void |
1647 |
|
|
prepare_cede_notself (pTHX_ struct coro_transfer_args *ta) |
1648 |
root |
1.131 |
{ |
1649 |
root |
1.267 |
SV *prev = SvRV (coro_current); |
1650 |
|
|
|
1651 |
root |
1.131 |
if (coro_nready) |
1652 |
|
|
{ |
1653 |
root |
1.146 |
prepare_schedule (aTHX_ ta); |
1654 |
root |
1.270 |
api_ready (aTHX_ prev); |
1655 |
root |
1.131 |
} |
1656 |
|
|
else |
1657 |
root |
1.272 |
prepare_nop (aTHX_ ta); |
1658 |
root |
1.39 |
} |
1659 |
|
|
|
1660 |
root |
1.92 |
static void |
1661 |
root |
1.270 |
api_schedule (pTHX) |
1662 |
root |
1.92 |
{ |
1663 |
root |
1.272 |
struct coro_transfer_args ta; |
1664 |
root |
1.92 |
|
1665 |
root |
1.146 |
prepare_schedule (aTHX_ &ta); |
1666 |
root |
1.227 |
TRANSFER (ta, 1); |
1667 |
root |
1.92 |
} |
1668 |
root |
1.89 |
|
1669 |
root |
1.131 |
static int |
1670 |
root |
1.270 |
api_cede (pTHX) |
1671 |
root |
1.39 |
{ |
1672 |
root |
1.272 |
struct coro_transfer_args ta; |
1673 |
root |
1.89 |
|
1674 |
root |
1.146 |
prepare_cede (aTHX_ &ta); |
1675 |
root |
1.131 |
|
1676 |
root |
1.194 |
if (expect_true (ta.prev != ta.next)) |
1677 |
root |
1.131 |
{ |
1678 |
root |
1.227 |
TRANSFER (ta, 1); |
1679 |
root |
1.131 |
return 1; |
1680 |
|
|
} |
1681 |
|
|
else |
1682 |
|
|
return 0; |
1683 |
|
|
} |
1684 |
|
|
|
1685 |
|
|
static int |
1686 |
root |
1.270 |
api_cede_notself (pTHX) |
1687 |
root |
1.131 |
{ |
1688 |
root |
1.267 |
if (coro_nready) |
1689 |
|
|
{ |
1690 |
root |
1.272 |
struct coro_transfer_args ta; |
1691 |
root |
1.131 |
|
1692 |
root |
1.267 |
prepare_cede_notself (aTHX_ &ta); |
1693 |
root |
1.227 |
TRANSFER (ta, 1); |
1694 |
root |
1.131 |
return 1; |
1695 |
|
|
} |
1696 |
|
|
else |
1697 |
|
|
return 0; |
1698 |
root |
1.23 |
} |
1699 |
|
|
|
1700 |
root |
1.173 |
static void |
1701 |
root |
1.270 |
api_trace (pTHX_ SV *coro_sv, int flags) |
1702 |
root |
1.173 |
{ |
1703 |
root |
1.174 |
struct coro *coro = SvSTATE (coro_sv); |
1704 |
root |
1.173 |
|
1705 |
|
|
if (flags & CC_TRACE) |
1706 |
|
|
{ |
1707 |
|
|
if (!coro->cctx) |
1708 |
root |
1.258 |
coro->cctx = cctx_new_run (); |
1709 |
root |
1.173 |
else if (!(coro->cctx->flags & CC_TRACE)) |
1710 |
root |
1.273 |
croak ("cannot enable tracing on coroutine with custom stack,"); |
1711 |
root |
1.173 |
|
1712 |
|
|
coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
1713 |
|
|
} |
1714 |
|
|
else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
1715 |
|
|
{ |
1716 |
|
|
coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
1717 |
|
|
|
1718 |
|
|
if (coro->flags & CF_RUNNING) |
1719 |
|
|
PL_runops = RUNOPS_DEFAULT; |
1720 |
|
|
else |
1721 |
root |
1.198 |
coro->slot->runops = RUNOPS_DEFAULT; |
1722 |
root |
1.173 |
} |
1723 |
|
|
} |
1724 |
|
|
|
1725 |
root |
1.255 |
#if 0 |
1726 |
root |
1.243 |
static int |
1727 |
|
|
coro_gensub_free (pTHX_ SV *sv, MAGIC *mg) |
1728 |
|
|
{ |
1729 |
|
|
AV *padlist; |
1730 |
|
|
AV *av = (AV *)mg->mg_obj; |
1731 |
|
|
|
1732 |
|
|
abort (); |
1733 |
|
|
|
1734 |
|
|
return 0; |
1735 |
|
|
} |
1736 |
|
|
|
1737 |
|
|
static MGVTBL coro_gensub_vtbl = { |
1738 |
|
|
0, 0, 0, 0, |
1739 |
|
|
coro_gensub_free |
1740 |
|
|
}; |
1741 |
root |
1.255 |
#endif |
1742 |
root |
1.243 |
|
1743 |
root |
1.246 |
/*****************************************************************************/ |
1744 |
|
|
/* PerlIO::cede */ |
1745 |
|
|
|
1746 |
|
|
typedef struct |
1747 |
|
|
{ |
1748 |
|
|
PerlIOBuf base; |
1749 |
|
|
NV next, every; |
1750 |
|
|
} PerlIOCede; |
1751 |
|
|
|
1752 |
|
|
static IV |
1753 |
|
|
PerlIOCede_pushed (pTHX_ PerlIO *f, const char *mode, SV *arg, PerlIO_funcs *tab) |
1754 |
|
|
{ |
1755 |
|
|
PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1756 |
|
|
|
1757 |
root |
1.247 |
self->every = SvCUR (arg) ? SvNV (arg) : 0.01; |
1758 |
root |
1.246 |
self->next = nvtime () + self->every; |
1759 |
|
|
|
1760 |
|
|
return PerlIOBuf_pushed (aTHX_ f, mode, Nullsv, tab); |
1761 |
|
|
} |
1762 |
|
|
|
1763 |
|
|
static SV * |
1764 |
|
|
PerlIOCede_getarg (pTHX_ PerlIO *f, CLONE_PARAMS *param, int flags) |
1765 |
|
|
{ |
1766 |
|
|
PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1767 |
|
|
|
1768 |
|
|
return newSVnv (self->every); |
1769 |
|
|
} |
1770 |
|
|
|
1771 |
|
|
static IV |
1772 |
|
|
PerlIOCede_flush (pTHX_ PerlIO *f) |
1773 |
|
|
{ |
1774 |
|
|
PerlIOCede *self = PerlIOSelf (f, PerlIOCede); |
1775 |
|
|
double now = nvtime (); |
1776 |
|
|
|
1777 |
|
|
if (now >= self->next) |
1778 |
|
|
{ |
1779 |
root |
1.270 |
api_cede (aTHX); |
1780 |
root |
1.246 |
self->next = now + self->every; |
1781 |
|
|
} |
1782 |
|
|
|
1783 |
root |
1.248 |
return PerlIOBuf_flush (aTHX_ f); |
1784 |
root |
1.246 |
} |
1785 |
|
|
|
1786 |
|
|
static PerlIO_funcs PerlIO_cede = |
1787 |
|
|
{ |
1788 |
|
|
sizeof(PerlIO_funcs), |
1789 |
|
|
"cede", |
1790 |
|
|
sizeof(PerlIOCede), |
1791 |
|
|
PERLIO_K_DESTRUCT | PERLIO_K_RAW, |
1792 |
|
|
PerlIOCede_pushed, |
1793 |
|
|
PerlIOBuf_popped, |
1794 |
|
|
PerlIOBuf_open, |
1795 |
|
|
PerlIOBase_binmode, |
1796 |
|
|
PerlIOCede_getarg, |
1797 |
|
|
PerlIOBase_fileno, |
1798 |
|
|
PerlIOBuf_dup, |
1799 |
|
|
PerlIOBuf_read, |
1800 |
|
|
PerlIOBuf_unread, |
1801 |
|
|
PerlIOBuf_write, |
1802 |
|
|
PerlIOBuf_seek, |
1803 |
|
|
PerlIOBuf_tell, |
1804 |
|
|
PerlIOBuf_close, |
1805 |
|
|
PerlIOCede_flush, |
1806 |
|
|
PerlIOBuf_fill, |
1807 |
|
|
PerlIOBase_eof, |
1808 |
|
|
PerlIOBase_error, |
1809 |
|
|
PerlIOBase_clearerr, |
1810 |
|
|
PerlIOBase_setlinebuf, |
1811 |
|
|
PerlIOBuf_get_base, |
1812 |
|
|
PerlIOBuf_bufsiz, |
1813 |
|
|
PerlIOBuf_get_ptr, |
1814 |
|
|
PerlIOBuf_get_cnt, |
1815 |
|
|
PerlIOBuf_set_ptrcnt, |
1816 |
|
|
}; |
1817 |
|
|
|
1818 |
root |
1.264 |
/*****************************************************************************/ |
1819 |
|
|
|
1820 |
root |
1.269 |
static const CV *slf_cv; /* for quick consistency check */ |
1821 |
root |
1.264 |
|
1822 |
root |
1.269 |
static UNOP slf_restore; /* restore stack as entersub did, for first-re-run */ |
1823 |
|
|
static SV *slf_arg0; |
1824 |
|
|
static SV *slf_arg1; |
1825 |
root |
1.273 |
static SV *slf_arg2; |
1826 |
root |
1.264 |
|
1827 |
|
|
/* this restores the stack in the case we patched the entersub, to */ |
1828 |
|
|
/* recreate the stack frame as perl will on following calls */ |
1829 |
|
|
/* since entersub cleared the stack */ |
1830 |
|
|
static OP * |
1831 |
|
|
pp_restore (pTHX) |
1832 |
|
|
{ |
1833 |
|
|
dSP; |
1834 |
|
|
|
1835 |
|
|
PUSHMARK (SP); |
1836 |
|
|
|
1837 |
|
|
EXTEND (SP, 3); |
1838 |
root |
1.269 |
if (slf_arg0) PUSHs (sv_2mortal (slf_arg0)); |
1839 |
|
|
if (slf_arg1) PUSHs (sv_2mortal (slf_arg1)); |
1840 |
root |
1.273 |
if (slf_arg2) PUSHs (sv_2mortal (slf_arg2)); |
1841 |
root |
1.269 |
PUSHs ((SV *)CvGV (slf_cv)); |
1842 |
root |
1.264 |
|
1843 |
root |
1.269 |
RETURNOP (slf_restore.op_first); |
1844 |
root |
1.264 |
} |
1845 |
|
|
|
1846 |
root |
1.272 |
static void |
1847 |
root |
1.273 |
slf_prepare_set_stacklevel (pTHX_ struct coro_transfer_args *ta) |
1848 |
|
|
{ |
1849 |
|
|
prepare_set_stacklevel (ta, (struct coro_cctx *)slf_frame.data); |
1850 |
|
|
} |
1851 |
|
|
|
1852 |
|
|
static void |
1853 |
|
|
slf_init_set_stacklevel (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
1854 |
root |
1.272 |
{ |
1855 |
|
|
assert (("FATAL: set_stacklevel needs the coro cctx as sole argument", items == 1)); |
1856 |
root |
1.273 |
|
1857 |
|
|
frame->prepare = slf_prepare_set_stacklevel; |
1858 |
|
|
frame->check = slf_check_nop; |
1859 |
|
|
frame->data = (void *)SvIV (arg [0]); |
1860 |
root |
1.272 |
} |
1861 |
|
|
|
1862 |
|
|
static void |
1863 |
root |
1.273 |
slf_prepare_transfer (pTHX_ struct coro_transfer_args *ta) |
1864 |
root |
1.272 |
{ |
1865 |
root |
1.273 |
SV **arg = (SV **)slf_frame.data; |
1866 |
|
|
|
1867 |
|
|
prepare_transfer (ta, arg [0], arg [1]); |
1868 |
root |
1.272 |
} |
1869 |
root |
1.267 |
|
1870 |
root |
1.272 |
static void |
1871 |
root |
1.273 |
slf_init_transfer (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
1872 |
root |
1.272 |
{ |
1873 |
|
|
if (items != 2) |
1874 |
root |
1.273 |
croak ("Coro::State::transfer (prev, next) expects two arguments, not %d,", items); |
1875 |
root |
1.272 |
|
1876 |
root |
1.273 |
frame->prepare = slf_prepare_transfer; |
1877 |
|
|
frame->check = slf_check_nop; |
1878 |
|
|
frame->data = (void *)arg; /* let's hope it will stay valid */ |
1879 |
root |
1.272 |
} |
1880 |
|
|
|
1881 |
|
|
static void |
1882 |
root |
1.273 |
slf_init_schedule (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
1883 |
root |
1.272 |
{ |
1884 |
root |
1.273 |
frame->prepare = prepare_schedule; |
1885 |
|
|
frame->check = slf_check_nop; |
1886 |
|
|
} |
1887 |
root |
1.272 |
|
1888 |
root |
1.273 |
static void |
1889 |
|
|
slf_init_cede (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
1890 |
|
|
{ |
1891 |
|
|
frame->prepare = prepare_cede; |
1892 |
|
|
frame->check = slf_check_nop; |
1893 |
root |
1.272 |
} |
1894 |
|
|
|
1895 |
|
|
static void |
1896 |
root |
1.273 |
slf_init_cede_notself (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
1897 |
root |
1.272 |
{ |
1898 |
root |
1.273 |
frame->prepare = prepare_cede_notself; |
1899 |
|
|
frame->check = slf_check_nop; |
1900 |
root |
1.272 |
} |
1901 |
|
|
|
1902 |
|
|
/* we hijack an hopefully unused CV flag for our purposes */ |
1903 |
|
|
#define CVf_SLF 0x4000 |
1904 |
root |
1.264 |
|
1905 |
root |
1.267 |
/* |
1906 |
|
|
* these not obviously related functions are all rolled into one |
1907 |
|
|
* function to increase chances that they all will call transfer with the same |
1908 |
|
|
* stack offset |
1909 |
root |
1.269 |
* SLF stands for "schedule-like-function". |
1910 |
root |
1.267 |
*/ |
1911 |
root |
1.264 |
static OP * |
1912 |
root |
1.269 |
pp_slf (pTHX) |
1913 |
root |
1.264 |
{ |
1914 |
root |
1.272 |
I32 checkmark; /* mark SP to see how many elements check has pushed */ |
1915 |
|
|
|
1916 |
root |
1.273 |
/* set up the slf frame, unless it has already been set-up */ |
1917 |
|
|
/* the latter happens when a new coro has been started */ |
1918 |
|
|
/* or when a new cctx was attached to an existing coroutine */ |
1919 |
root |
1.272 |
if (expect_true (!slf_frame.prepare)) |
1920 |
|
|
{ |
1921 |
|
|
/* first iteration */ |
1922 |
|
|
dSP; |
1923 |
|
|
SV **arg = PL_stack_base + TOPMARK + 1; |
1924 |
|
|
int items = SP - arg; /* args without function object */ |
1925 |
|
|
SV *gv = *sp; |
1926 |
|
|
|
1927 |
|
|
/* do a quick consistency check on the "function" object, and if it isn't */ |
1928 |
|
|
/* for us, divert to the real entersub */ |
1929 |
|
|
if (SvTYPE (gv) != SVt_PVGV || !(CvFLAGS (GvCV (gv)) & CVf_SLF)) |
1930 |
|
|
return PL_ppaddr[OP_ENTERSUB](aTHX); |
1931 |
|
|
|
1932 |
|
|
/* pop args */ |
1933 |
|
|
SP = PL_stack_base + POPMARK; |
1934 |
|
|
|
1935 |
|
|
if (!(PL_op->op_flags & OPf_STACKED)) |
1936 |
|
|
{ |
1937 |
|
|
/* ampersand-form of call, use @_ instead of stack */ |
1938 |
|
|
AV *av = GvAV (PL_defgv); |
1939 |
|
|
arg = AvARRAY (av); |
1940 |
|
|
items = AvFILLp (av) + 1; |
1941 |
|
|
} |
1942 |
root |
1.264 |
|
1943 |
root |
1.272 |
PUTBACK; |
1944 |
root |
1.270 |
|
1945 |
root |
1.273 |
((coro_slf_cb)CvXSUBANY (GvCV (gv)).any_ptr) (aTHX_ &slf_frame, arg, items); |
1946 |
root |
1.270 |
} |
1947 |
|
|
|
1948 |
root |
1.272 |
/* now interpret the slf_frame */ |
1949 |
|
|
/* we use a callback system not to make the code needlessly */ |
1950 |
|
|
/* complicated, but so we can run multiple perl coros from one cctx */ |
1951 |
|
|
|
1952 |
|
|
do |
1953 |
root |
1.264 |
{ |
1954 |
root |
1.272 |
struct coro_transfer_args ta; |
1955 |
root |
1.264 |
|
1956 |
root |
1.272 |
slf_frame.prepare (aTHX_ &ta); |
1957 |
|
|
TRANSFER (ta, 0); |
1958 |
root |
1.264 |
|
1959 |
root |
1.272 |
checkmark = PL_stack_sp - PL_stack_base; |
1960 |
|
|
} |
1961 |
root |
1.273 |
while (slf_frame.check (aTHX_ &slf_frame)); |
1962 |
root |
1.264 |
|
1963 |
root |
1.272 |
{ |
1964 |
|
|
dSP; |
1965 |
|
|
SV **bot = PL_stack_base + checkmark; |
1966 |
|
|
int gimme = GIMME_V; |
1967 |
root |
1.264 |
|
1968 |
root |
1.272 |
slf_frame.prepare = 0; /* signal pp_slf that we need a new frame */ |
1969 |
root |
1.264 |
|
1970 |
root |
1.272 |
/* make sure we put something on the stack in scalar context */ |
1971 |
|
|
if (gimme == G_SCALAR) |
1972 |
|
|
{ |
1973 |
|
|
if (sp == bot) |
1974 |
|
|
XPUSHs (&PL_sv_undef); |
1975 |
root |
1.269 |
|
1976 |
root |
1.272 |
SP = bot + 1; |
1977 |
|
|
} |
1978 |
root |
1.264 |
|
1979 |
root |
1.272 |
PUTBACK; |
1980 |
|
|
} |
1981 |
root |
1.270 |
|
1982 |
root |
1.272 |
return NORMAL; |
1983 |
root |
1.264 |
} |
1984 |
root |
1.246 |
|
1985 |
root |
1.267 |
static void |
1986 |
root |
1.273 |
api_execute_slf (pTHX_ CV *cv, coro_slf_cb init_cb, SV **arg, int items) |
1987 |
root |
1.267 |
{ |
1988 |
root |
1.272 |
assert (("FATAL: SLF call with illegal CV value", !CvANON (cv))); |
1989 |
root |
1.1 |
|
1990 |
root |
1.273 |
if (PL_op->op_ppaddr != PL_ppaddr [OP_ENTERSUB] |
1991 |
|
|
&& PL_op->op_ppaddr != pp_slf) |
1992 |
root |
1.274 |
croak ("FATAL: Coro SLF calls can only be made normally, not via goto or any other means, caught"); |
1993 |
root |
1.273 |
|
1994 |
|
|
if (items > 3) |
1995 |
root |
1.275 |
croak ("Coro only supports up to three arguments to SLF functions currently (not %d), caught", items); |
1996 |
root |
1.272 |
|
1997 |
|
|
CvFLAGS (cv) |= CVf_SLF; |
1998 |
root |
1.273 |
CvXSUBANY (cv).any_ptr = (void *)init_cb; |
1999 |
root |
1.269 |
slf_cv = cv; |
2000 |
root |
1.1 |
|
2001 |
root |
1.267 |
/* we patch the op, and then re-run the whole call */ |
2002 |
root |
1.269 |
/* we have to put the same argument on the stack for this to work */ |
2003 |
|
|
/* and this will be done by pp_restore */ |
2004 |
|
|
slf_restore.op_next = (OP *)&slf_restore; |
2005 |
|
|
slf_restore.op_type = OP_NULL; |
2006 |
|
|
slf_restore.op_ppaddr = pp_restore; |
2007 |
|
|
slf_restore.op_first = PL_op; |
2008 |
root |
1.264 |
|
2009 |
root |
1.272 |
slf_arg0 = items > 0 ? SvREFCNT_inc (arg [0]) : 0; |
2010 |
|
|
slf_arg1 = items > 1 ? SvREFCNT_inc (arg [1]) : 0; |
2011 |
root |
1.273 |
slf_arg2 = items > 2 ? SvREFCNT_inc (arg [2]) : 0; |
2012 |
root |
1.266 |
|
2013 |
root |
1.269 |
PL_op->op_ppaddr = pp_slf; |
2014 |
root |
1.264 |
|
2015 |
root |
1.269 |
PL_op = (OP *)&slf_restore; |
2016 |
root |
1.267 |
} |
2017 |
root |
1.264 |
|
2018 |
root |
1.275 |
/*****************************************************************************/ |
2019 |
|
|
|
2020 |
|
|
static int |
2021 |
|
|
slf_check_semaphore_down (pTHX_ struct CoroSLF *frame) |
2022 |
|
|
{ |
2023 |
|
|
AV *av = (AV *)frame->data; |
2024 |
|
|
SV *count_sv = AvARRAY (av)[0]; |
2025 |
|
|
|
2026 |
|
|
if (SvIVX (count_sv) > 0) |
2027 |
|
|
{ |
2028 |
|
|
SvIVX (count_sv) = SvIVX (count_sv) - 1; |
2029 |
|
|
return 0; |
2030 |
|
|
} |
2031 |
|
|
else |
2032 |
|
|
{ |
2033 |
|
|
int i; |
2034 |
|
|
/* if we were woken up but can't down, we look through the whole */ |
2035 |
|
|
/* waiters list and only add us if we aren't in there already */ |
2036 |
|
|
/* this avoids some degenerate memory usage cases */ |
2037 |
|
|
|
2038 |
|
|
for (i = 1; i <= AvFILLp (av); ++i) |
2039 |
|
|
if (AvARRAY (av)[i] == SvRV (coro_current)) |
2040 |
|
|
return 1; |
2041 |
|
|
|
2042 |
|
|
av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2043 |
|
|
return 1; |
2044 |
|
|
} |
2045 |
|
|
} |
2046 |
|
|
|
2047 |
|
|
static void |
2048 |
|
|
slf_init_semaphore_down (pTHX_ struct CoroSLF *frame, SV **arg, int items) |
2049 |
|
|
{ |
2050 |
|
|
AV *av = (AV *)SvRV (arg [0]); |
2051 |
|
|
|
2052 |
|
|
if (SvIVX (AvARRAY (av)[0]) > 0) |
2053 |
|
|
{ |
2054 |
|
|
frame->data = (void *)av; |
2055 |
|
|
frame->prepare = prepare_nop; |
2056 |
|
|
} |
2057 |
|
|
else |
2058 |
|
|
{ |
2059 |
|
|
av_push (av, SvREFCNT_inc (SvRV (coro_current))); |
2060 |
|
|
|
2061 |
|
|
frame->data = (void *)sv_2mortal (SvREFCNT_inc ((SV *)av)); |
2062 |
|
|
frame->prepare = prepare_schedule; |
2063 |
|
|
} |
2064 |
|
|
|
2065 |
|
|
frame->check = slf_check_semaphore_down; |
2066 |
|
|
|
2067 |
|
|
} |
2068 |
|
|
|
2069 |
root |
1.267 |
MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
2070 |
root |
1.264 |
|
2071 |
root |
1.267 |
PROTOTYPES: DISABLE |
2072 |
root |
1.264 |
|
2073 |
root |
1.3 |
BOOT: |
2074 |
root |
1.88 |
{ |
2075 |
pcg |
1.55 |
#ifdef USE_ITHREADS |
2076 |
root |
1.253 |
MUTEX_INIT (&coro_lock); |
2077 |
root |
1.256 |
# if CORO_PTHREAD |
2078 |
|
|
coro_thx = PERL_GET_CONTEXT; |
2079 |
|
|
# endif |
2080 |
pcg |
1.55 |
#endif |
2081 |
root |
1.78 |
BOOT_PAGESIZE; |
2082 |
pcg |
1.55 |
|
2083 |
root |
1.190 |
irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
2084 |
|
|
stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
2085 |
root |
1.220 |
|
2086 |
root |
1.239 |
orig_sigelem_get = PL_vtbl_sigelem.svt_get; PL_vtbl_sigelem.svt_get = coro_sigelem_get; |
2087 |
|
|
orig_sigelem_set = PL_vtbl_sigelem.svt_set; PL_vtbl_sigelem.svt_set = coro_sigelem_set; |
2088 |
|
|
orig_sigelem_clr = PL_vtbl_sigelem.svt_clear; PL_vtbl_sigelem.svt_clear = coro_sigelem_clr; |
2089 |
root |
1.220 |
|
2090 |
root |
1.213 |
hv_sig = coro_get_hv (aTHX_ "SIG", TRUE); |
2091 |
root |
1.220 |
rv_diehook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::diehook" , 0, SVt_PVCV)); |
2092 |
|
|
rv_warnhook = newRV_inc ((SV *)gv_fetchpv ("Coro::State::warnhook", 0, SVt_PVCV)); |
2093 |
root |
1.199 |
|
2094 |
root |
1.14 |
coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
2095 |
root |
1.7 |
|
2096 |
root |
1.167 |
newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
2097 |
|
|
newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
2098 |
|
|
newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
2099 |
|
|
newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
2100 |
|
|
|
2101 |
root |
1.12 |
main_mainstack = PL_mainstack; |
2102 |
root |
1.148 |
main_top_env = PL_top_env; |
2103 |
|
|
|
2104 |
|
|
while (main_top_env->je_prev) |
2105 |
|
|
main_top_env = main_top_env->je_prev; |
2106 |
root |
1.23 |
|
2107 |
root |
1.271 |
coroapi.ver = CORO_API_VERSION; |
2108 |
|
|
coroapi.rev = CORO_API_REVISION; |
2109 |
root |
1.273 |
|
2110 |
root |
1.271 |
coroapi.transfer = api_transfer; |
2111 |
root |
1.273 |
|
2112 |
|
|
coroapi.sv_state = SvSTATE_; |
2113 |
|
|
coroapi.execute_slf = api_execute_slf; |
2114 |
|
|
coroapi.prepare_nop = prepare_nop; |
2115 |
|
|
coroapi.prepare_schedule = prepare_schedule; |
2116 |
|
|
coroapi.prepare_cede = prepare_cede; |
2117 |
|
|
coroapi.prepare_cede_notself = prepare_cede_notself; |
2118 |
root |
1.87 |
|
2119 |
root |
1.246 |
{ |
2120 |
|
|
SV **svp = hv_fetch (PL_modglobal, "Time::NVtime", 12, 0); |
2121 |
|
|
|
2122 |
|
|
if (!svp) croak ("Time::HiRes is required"); |
2123 |
|
|
if (!SvIOK (*svp)) croak ("Time::NVtime isn't a function pointer"); |
2124 |
|
|
|
2125 |
|
|
nvtime = INT2PTR (double (*)(), SvIV (*svp)); |
2126 |
|
|
} |
2127 |
|
|
|
2128 |
root |
1.87 |
assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
2129 |
root |
1.9 |
} |
2130 |
root |
1.3 |
|
2131 |
root |
1.87 |
SV * |
2132 |
root |
1.86 |
new (char *klass, ...) |
2133 |
root |
1.1 |
CODE: |
2134 |
root |
1.86 |
{ |
2135 |
root |
1.87 |
struct coro *coro; |
2136 |
root |
1.214 |
MAGIC *mg; |
2137 |
root |
1.87 |
HV *hv; |
2138 |
root |
1.86 |
int i; |
2139 |
|
|
|
2140 |
pcg |
1.47 |
Newz (0, coro, 1, struct coro); |
2141 |
root |
1.178 |
coro->args = newAV (); |
2142 |
root |
1.117 |
coro->flags = CF_NEW; |
2143 |
root |
1.86 |
|
2144 |
root |
1.153 |
if (coro_first) coro_first->prev = coro; |
2145 |
|
|
coro->next = coro_first; |
2146 |
|
|
coro_first = coro; |
2147 |
root |
1.151 |
|
2148 |
|
|
coro->hv = hv = newHV (); |
2149 |
root |
1.214 |
mg = sv_magicext ((SV *)hv, 0, CORO_MAGIC_type_state, &coro_state_vtbl, (char *)coro, 0); |
2150 |
|
|
mg->mg_flags |= MGf_DUP; |
2151 |
root |
1.89 |
RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
2152 |
|
|
|
2153 |
root |
1.192 |
av_extend (coro->args, items - 1); |
2154 |
root |
1.86 |
for (i = 1; i < items; i++) |
2155 |
|
|
av_push (coro->args, newSVsv (ST (i))); |
2156 |
|
|
} |
2157 |
root |
1.1 |
OUTPUT: |
2158 |
|
|
RETVAL |
2159 |
|
|
|
2160 |
root |
1.267 |
void |
2161 |
|
|
_set_stacklevel (...) |
2162 |
root |
1.272 |
CODE: |
2163 |
root |
1.273 |
api_execute_slf (aTHX_ cv, slf_init_set_stacklevel, &ST (0), items); |
2164 |
root |
1.272 |
|
2165 |
|
|
void |
2166 |
|
|
transfer (...) |
2167 |
root |
1.276 |
PROTOTYPE: $$ |
2168 |
root |
1.272 |
CODE: |
2169 |
root |
1.273 |
api_execute_slf (aTHX_ cv, slf_init_transfer, &ST (0), items); |
2170 |
root |
1.267 |
|
2171 |
root |
1.133 |
bool |
2172 |
|
|
_destroy (SV *coro_sv) |
2173 |
root |
1.87 |
CODE: |
2174 |
root |
1.146 |
RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
2175 |
root |
1.133 |
OUTPUT: |
2176 |
|
|
RETVAL |
2177 |
root |
1.12 |
|
2178 |
root |
1.7 |
void |
2179 |
root |
1.233 |
_exit (int code) |
2180 |
root |
1.20 |
PROTOTYPE: $ |
2181 |
|
|
CODE: |
2182 |
|
|
_exit (code); |
2183 |
root |
1.1 |
|
2184 |
root |
1.106 |
int |
2185 |
root |
1.145 |
cctx_stacksize (int new_stacksize = 0) |
2186 |
root |
1.275 |
PROTOTYPE: ;$ |
2187 |
root |
1.145 |
CODE: |
2188 |
root |
1.254 |
RETVAL = cctx_stacksize; |
2189 |
root |
1.145 |
if (new_stacksize) |
2190 |
root |
1.254 |
{ |
2191 |
|
|
cctx_stacksize = new_stacksize; |
2192 |
|
|
++cctx_gen; |
2193 |
|
|
} |
2194 |
|
|
OUTPUT: |
2195 |
|
|
RETVAL |
2196 |
|
|
|
2197 |
|
|
int |
2198 |
|
|
cctx_max_idle (int max_idle = 0) |
2199 |
root |
1.275 |
PROTOTYPE: ;$ |
2200 |
root |
1.254 |
CODE: |
2201 |
|
|
RETVAL = cctx_max_idle; |
2202 |
|
|
if (max_idle > 1) |
2203 |
|
|
cctx_max_idle = max_idle; |
2204 |
root |
1.145 |
OUTPUT: |
2205 |
|
|
RETVAL |
2206 |
|
|
|
2207 |
|
|
int |
2208 |
root |
1.106 |
cctx_count () |
2209 |
root |
1.275 |
PROTOTYPE: |
2210 |
root |
1.106 |
CODE: |
2211 |
|
|
RETVAL = cctx_count; |
2212 |
|
|
OUTPUT: |
2213 |
|
|
RETVAL |
2214 |
|
|
|
2215 |
|
|
int |
2216 |
|
|
cctx_idle () |
2217 |
root |
1.275 |
PROTOTYPE: |
2218 |
root |
1.106 |
CODE: |
2219 |
root |
1.211 |
RETVAL = cctx_idle; |
2220 |
root |
1.106 |
OUTPUT: |
2221 |
|
|
RETVAL |
2222 |
|
|
|
2223 |
root |
1.151 |
void |
2224 |
|
|
list () |
2225 |
root |
1.275 |
PROTOTYPE: |
2226 |
root |
1.151 |
PPCODE: |
2227 |
|
|
{ |
2228 |
|
|
struct coro *coro; |
2229 |
root |
1.153 |
for (coro = coro_first; coro; coro = coro->next) |
2230 |
root |
1.151 |
if (coro->hv) |
2231 |
|
|
XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
2232 |
|
|
} |
2233 |
|
|
|
2234 |
|
|
void |
2235 |
root |
1.164 |
call (Coro::State coro, SV *coderef) |
2236 |
|
|
ALIAS: |
2237 |
|
|
eval = 1 |
2238 |
root |
1.151 |
CODE: |
2239 |
|
|
{ |
2240 |
root |
1.245 |
if (coro->mainstack && ((coro->flags & CF_RUNNING) || coro->slot)) |
2241 |
root |
1.151 |
{ |
2242 |
|
|
struct coro temp; |
2243 |
|
|
|
2244 |
|
|
if (!(coro->flags & CF_RUNNING)) |
2245 |
|
|
{ |
2246 |
root |
1.219 |
PUTBACK; |
2247 |
root |
1.151 |
save_perl (aTHX_ &temp); |
2248 |
|
|
load_perl (aTHX_ coro); |
2249 |
|
|
} |
2250 |
|
|
|
2251 |
|
|
{ |
2252 |
|
|
dSP; |
2253 |
|
|
ENTER; |
2254 |
|
|
SAVETMPS; |
2255 |
root |
1.208 |
PUTBACK; |
2256 |
|
|
PUSHSTACK; |
2257 |
root |
1.151 |
PUSHMARK (SP); |
2258 |
root |
1.198 |
|
2259 |
root |
1.164 |
if (ix) |
2260 |
|
|
eval_sv (coderef, 0); |
2261 |
|
|
else |
2262 |
|
|
call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
2263 |
root |
1.198 |
|
2264 |
root |
1.208 |
POPSTACK; |
2265 |
root |
1.211 |
SPAGAIN; |
2266 |
root |
1.151 |
FREETMPS; |
2267 |
|
|
LEAVE; |
2268 |
root |
1.210 |
PUTBACK; |
2269 |
root |
1.151 |
} |
2270 |
|
|
|
2271 |
|
|
if (!(coro->flags & CF_RUNNING)) |
2272 |
|
|
{ |
2273 |
|
|
save_perl (aTHX_ coro); |
2274 |
|
|
load_perl (aTHX_ &temp); |
2275 |
root |
1.219 |
SPAGAIN; |
2276 |
root |
1.151 |
} |
2277 |
|
|
} |
2278 |
|
|
} |
2279 |
root |
1.172 |
|
2280 |
root |
1.151 |
SV * |
2281 |
root |
1.152 |
is_ready (Coro::State coro) |
2282 |
root |
1.151 |
PROTOTYPE: $ |
2283 |
|
|
ALIAS: |
2284 |
|
|
is_ready = CF_READY |
2285 |
|
|
is_running = CF_RUNNING |
2286 |
|
|
is_new = CF_NEW |
2287 |
|
|
is_destroyed = CF_DESTROYED |
2288 |
|
|
CODE: |
2289 |
|
|
RETVAL = boolSV (coro->flags & ix); |
2290 |
|
|
OUTPUT: |
2291 |
|
|
RETVAL |
2292 |
|
|
|
2293 |
root |
1.165 |
void |
2294 |
root |
1.260 |
throw (Coro::State self, SV *throw = &PL_sv_undef) |
2295 |
|
|
PROTOTYPE: $;$ |
2296 |
|
|
CODE: |
2297 |
|
|
SvREFCNT_dec (self->throw); |
2298 |
|
|
self->throw = SvOK (throw) ? newSVsv (throw) : 0; |
2299 |
|
|
|
2300 |
|
|
void |
2301 |
root |
1.174 |
api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
2302 |
root |
1.275 |
PROTOTYPE: $;$ |
2303 |
root |
1.270 |
C_ARGS: aTHX_ coro, flags |
2304 |
root |
1.165 |
|
2305 |
root |
1.162 |
SV * |
2306 |
root |
1.234 |
has_cctx (Coro::State coro) |
2307 |
root |
1.162 |
PROTOTYPE: $ |
2308 |
|
|
CODE: |
2309 |
|
|
RETVAL = boolSV (!!coro->cctx); |
2310 |
|
|
OUTPUT: |
2311 |
|
|
RETVAL |
2312 |
|
|
|
2313 |
root |
1.167 |
int |
2314 |
|
|
is_traced (Coro::State coro) |
2315 |
|
|
PROTOTYPE: $ |
2316 |
|
|
CODE: |
2317 |
|
|
RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
2318 |
|
|
OUTPUT: |
2319 |
|
|
RETVAL |
2320 |
|
|
|
2321 |
root |
1.255 |
UV |
2322 |
root |
1.152 |
rss (Coro::State coro) |
2323 |
|
|
PROTOTYPE: $ |
2324 |
root |
1.172 |
ALIAS: |
2325 |
|
|
usecount = 1 |
2326 |
root |
1.152 |
CODE: |
2327 |
root |
1.172 |
switch (ix) |
2328 |
|
|
{ |
2329 |
|
|
case 0: RETVAL = coro_rss (aTHX_ coro); break; |
2330 |
|
|
case 1: RETVAL = coro->usecount; break; |
2331 |
|
|
} |
2332 |
root |
1.152 |
OUTPUT: |
2333 |
|
|
RETVAL |
2334 |
|
|
|
2335 |
root |
1.226 |
void |
2336 |
|
|
force_cctx () |
2337 |
root |
1.275 |
PROTOTYPE: |
2338 |
root |
1.226 |
CODE: |
2339 |
|
|
struct coro *coro = SvSTATE (coro_current); |
2340 |
|
|
coro->cctx->idle_sp = 0; |
2341 |
root |
1.151 |
|
2342 |
root |
1.242 |
void |
2343 |
|
|
swap_defsv (Coro::State self) |
2344 |
|
|
PROTOTYPE: $ |
2345 |
|
|
ALIAS: |
2346 |
|
|
swap_defav = 1 |
2347 |
|
|
CODE: |
2348 |
|
|
if (!self->slot) |
2349 |
root |
1.273 |
croak ("cannot swap state with coroutine that has no saved state,"); |
2350 |
root |
1.242 |
else |
2351 |
|
|
{ |
2352 |
|
|
SV **src = ix ? (SV **)&GvAV (PL_defgv) : &GvSV (PL_defgv); |
2353 |
|
|
SV **dst = ix ? (SV **)&self->slot->defav : (SV **)&self->slot->defsv; |
2354 |
|
|
|
2355 |
|
|
SV *tmp = *src; *src = *dst; *dst = tmp; |
2356 |
|
|
} |
2357 |
|
|
|
2358 |
root |
1.21 |
MODULE = Coro::State PACKAGE = Coro |
2359 |
|
|
|
2360 |
|
|
BOOT: |
2361 |
|
|
{ |
2362 |
root |
1.22 |
int i; |
2363 |
|
|
|
2364 |
root |
1.233 |
av_async_pool = coro_get_av (aTHX_ "Coro::async_pool", TRUE); |
2365 |
root |
1.213 |
sv_pool_rss = coro_get_sv (aTHX_ "Coro::POOL_RSS" , TRUE); |
2366 |
|
|
sv_pool_size = coro_get_sv (aTHX_ "Coro::POOL_SIZE" , TRUE); |
2367 |
root |
1.159 |
|
2368 |
root |
1.213 |
coro_current = coro_get_sv (aTHX_ "Coro::current", FALSE); |
2369 |
root |
1.159 |
SvREADONLY_on (coro_current); |
2370 |
|
|
|
2371 |
root |
1.198 |
coro_stash = gv_stashpv ("Coro", TRUE); |
2372 |
root |
1.88 |
|
2373 |
|
|
newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
2374 |
|
|
newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
2375 |
|
|
newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
2376 |
|
|
newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
2377 |
|
|
newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
2378 |
|
|
newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
2379 |
root |
1.22 |
|
2380 |
|
|
for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
2381 |
|
|
coro_ready[i] = newAV (); |
2382 |
root |
1.26 |
|
2383 |
|
|
{ |
2384 |
root |
1.263 |
SV *sv = coro_get_sv (aTHX_ "Coro::API", TRUE); |
2385 |
root |
1.26 |
|
2386 |
root |
1.131 |
coroapi.schedule = api_schedule; |
2387 |
|
|
coroapi.cede = api_cede; |
2388 |
|
|
coroapi.cede_notself = api_cede_notself; |
2389 |
|
|
coroapi.ready = api_ready; |
2390 |
|
|
coroapi.is_ready = api_is_ready; |
2391 |
root |
1.270 |
coroapi.nready = coro_nready; |
2392 |
root |
1.131 |
coroapi.current = coro_current; |
2393 |
root |
1.26 |
|
2394 |
|
|
GCoroAPI = &coroapi; |
2395 |
root |
1.81 |
sv_setiv (sv, (IV)&coroapi); |
2396 |
|
|
SvREADONLY_on (sv); |
2397 |
root |
1.26 |
} |
2398 |
root |
1.21 |
} |
2399 |
|
|
|
2400 |
root |
1.122 |
void |
2401 |
root |
1.272 |
schedule (...) |
2402 |
|
|
CODE: |
2403 |
root |
1.276 |
api_execute_slf (aTHX_ cv, slf_init_schedule, &ST (0), 0); |
2404 |
root |
1.272 |
|
2405 |
|
|
void |
2406 |
|
|
cede (...) |
2407 |
|
|
CODE: |
2408 |
root |
1.276 |
api_execute_slf (aTHX_ cv, slf_init_cede, &ST (0), 0); |
2409 |
root |
1.272 |
|
2410 |
|
|
void |
2411 |
|
|
cede_notself (...) |
2412 |
|
|
CODE: |
2413 |
root |
1.276 |
api_execute_slf (aTHX_ cv, slf_init_cede_notself, &ST (0), 0); |
2414 |
root |
1.272 |
|
2415 |
|
|
void |
2416 |
root |
1.122 |
_set_current (SV *current) |
2417 |
|
|
PROTOTYPE: $ |
2418 |
|
|
CODE: |
2419 |
|
|
SvREFCNT_dec (SvRV (coro_current)); |
2420 |
root |
1.249 |
SvRV_set (coro_current, SvREFCNT_inc_NN (SvRV (current))); |
2421 |
root |
1.122 |
|
2422 |
root |
1.233 |
void |
2423 |
|
|
_set_readyhook (SV *hook) |
2424 |
|
|
PROTOTYPE: $ |
2425 |
|
|
CODE: |
2426 |
|
|
LOCK; |
2427 |
root |
1.236 |
SvREFCNT_dec (coro_readyhook); |
2428 |
root |
1.233 |
coro_readyhook = SvOK (hook) ? newSVsv (hook) : 0; |
2429 |
|
|
UNLOCK; |
2430 |
|
|
|
2431 |
root |
1.92 |
int |
2432 |
|
|
prio (Coro::State coro, int newprio = 0) |
2433 |
root |
1.275 |
PROTOTYPE: $;$ |
2434 |
root |
1.92 |
ALIAS: |
2435 |
|
|
nice = 1 |
2436 |
|
|
CODE: |
2437 |
|
|
{ |
2438 |
|
|
RETVAL = coro->prio; |
2439 |
|
|
|
2440 |
|
|
if (items > 1) |
2441 |
|
|
{ |
2442 |
|
|
if (ix) |
2443 |
root |
1.129 |
newprio = coro->prio - newprio; |
2444 |
root |
1.92 |
|
2445 |
|
|
if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
2446 |
|
|
if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
2447 |
|
|
|
2448 |
|
|
coro->prio = newprio; |
2449 |
|
|
} |
2450 |
|
|
} |
2451 |
root |
1.130 |
OUTPUT: |
2452 |
|
|
RETVAL |
2453 |
root |
1.92 |
|
2454 |
root |
1.111 |
SV * |
2455 |
root |
1.89 |
ready (SV *self) |
2456 |
root |
1.35 |
PROTOTYPE: $ |
2457 |
root |
1.21 |
CODE: |
2458 |
root |
1.270 |
RETVAL = boolSV (api_ready (aTHX_ self)); |
2459 |
root |
1.111 |
OUTPUT: |
2460 |
|
|
RETVAL |
2461 |
|
|
|
2462 |
root |
1.25 |
int |
2463 |
root |
1.87 |
nready (...) |
2464 |
root |
1.25 |
PROTOTYPE: |
2465 |
|
|
CODE: |
2466 |
|
|
RETVAL = coro_nready; |
2467 |
|
|
OUTPUT: |
2468 |
|
|
RETVAL |
2469 |
|
|
|
2470 |
root |
1.159 |
# for async_pool speedup |
2471 |
root |
1.161 |
void |
2472 |
|
|
_pool_1 (SV *cb) |
2473 |
root |
1.159 |
CODE: |
2474 |
|
|
{ |
2475 |
root |
1.181 |
struct coro *coro = SvSTATE (coro_current); |
2476 |
root |
1.159 |
HV *hv = (HV *)SvRV (coro_current); |
2477 |
|
|
AV *defav = GvAV (PL_defgv); |
2478 |
root |
1.212 |
SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
2479 |
root |
1.159 |
AV *invoke_av; |
2480 |
root |
1.181 |
int i, len; |
2481 |
|
|
|
2482 |
root |
1.159 |
if (!invoke) |
2483 |
root |
1.221 |
{ |
2484 |
root |
1.240 |
SV *old = PL_diehook; |
2485 |
|
|
PL_diehook = 0; |
2486 |
|
|
SvREFCNT_dec (old); |
2487 |
root |
1.221 |
croak ("\3async_pool terminate\2\n"); |
2488 |
|
|
} |
2489 |
root |
1.159 |
|
2490 |
root |
1.184 |
SvREFCNT_dec (coro->saved_deffh); |
2491 |
root |
1.249 |
coro->saved_deffh = SvREFCNT_inc_NN ((SV *)PL_defoutgv); |
2492 |
root |
1.182 |
|
2493 |
root |
1.159 |
hv_store (hv, "desc", sizeof ("desc") - 1, |
2494 |
root |
1.212 |
newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
2495 |
root |
1.159 |
|
2496 |
|
|
invoke_av = (AV *)SvRV (invoke); |
2497 |
|
|
len = av_len (invoke_av); |
2498 |
|
|
|
2499 |
root |
1.161 |
sv_setsv (cb, AvARRAY (invoke_av)[0]); |
2500 |
root |
1.159 |
|
2501 |
|
|
if (len > 0) |
2502 |
|
|
{ |
2503 |
root |
1.161 |
av_fill (defav, len - 1); |
2504 |
root |
1.159 |
for (i = 0; i < len; ++i) |
2505 |
root |
1.249 |
av_store (defav, i, SvREFCNT_inc_NN (AvARRAY (invoke_av)[i + 1])); |
2506 |
root |
1.159 |
} |
2507 |
|
|
} |
2508 |
|
|
|
2509 |
|
|
void |
2510 |
root |
1.161 |
_pool_2 (SV *cb) |
2511 |
root |
1.159 |
CODE: |
2512 |
|
|
{ |
2513 |
|
|
struct coro *coro = SvSTATE (coro_current); |
2514 |
|
|
|
2515 |
root |
1.161 |
sv_setsv (cb, &PL_sv_undef); |
2516 |
|
|
|
2517 |
root |
1.184 |
SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
2518 |
|
|
coro->saved_deffh = 0; |
2519 |
root |
1.181 |
|
2520 |
root |
1.255 |
if (coro_rss (aTHX_ coro) > SvUV (sv_pool_rss) |
2521 |
root |
1.159 |
|| av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
2522 |
root |
1.221 |
{ |
2523 |
root |
1.240 |
SV *old = PL_diehook; |
2524 |
|
|
PL_diehook = 0; |
2525 |
|
|
SvREFCNT_dec (old); |
2526 |
root |
1.221 |
croak ("\3async_pool terminate\2\n"); |
2527 |
|
|
} |
2528 |
root |
1.159 |
|
2529 |
|
|
av_clear (GvAV (PL_defgv)); |
2530 |
root |
1.212 |
hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
2531 |
|
|
newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
2532 |
root |
1.175 |
|
2533 |
root |
1.159 |
coro->prio = 0; |
2534 |
root |
1.173 |
|
2535 |
|
|
if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
2536 |
root |
1.270 |
api_trace (aTHX_ coro_current, 0); |
2537 |
root |
1.173 |
|
2538 |
root |
1.159 |
av_push (av_async_pool, newSVsv (coro_current)); |
2539 |
|
|
} |
2540 |
|
|
|
2541 |
root |
1.243 |
#if 0 |
2542 |
|
|
|
2543 |
|
|
void |
2544 |
|
|
_generator_call (...) |
2545 |
|
|
PROTOTYPE: @ |
2546 |
|
|
PPCODE: |
2547 |
|
|
fprintf (stderr, "call %p\n", CvXSUBANY(cv).any_ptr); |
2548 |
|
|
xxxx |
2549 |
|
|
abort (); |
2550 |
|
|
|
2551 |
|
|
SV * |
2552 |
|
|
gensub (SV *sub, ...) |
2553 |
|
|
PROTOTYPE: &;@ |
2554 |
|
|
CODE: |
2555 |
|
|
{ |
2556 |
|
|
struct coro *coro; |
2557 |
|
|
MAGIC *mg; |
2558 |
|
|
CV *xcv; |
2559 |
|
|
CV *ncv = (CV *)newSV_type (SVt_PVCV); |
2560 |
|
|
int i; |
2561 |
|
|
|
2562 |
|
|
CvGV (ncv) = CvGV (cv); |
2563 |
|
|
CvFILE (ncv) = CvFILE (cv); |
2564 |
|
|
|
2565 |
|
|
Newz (0, coro, 1, struct coro); |
2566 |
|
|
coro->args = newAV (); |
2567 |
|
|
coro->flags = CF_NEW; |
2568 |
|
|
|
2569 |
|
|
av_extend (coro->args, items - 1); |
2570 |
|
|
for (i = 1; i < items; i++) |
2571 |
|
|
av_push (coro->args, newSVsv (ST (i))); |
2572 |
|
|
|
2573 |
|
|
CvISXSUB_on (ncv); |
2574 |
|
|
CvXSUBANY (ncv).any_ptr = (void *)coro; |
2575 |
|
|
|
2576 |
|
|
xcv = GvCV (gv_fetchpv ("Coro::_generator_call", 0, SVt_PVCV)); |
2577 |
|
|
|
2578 |
|
|
CvXSUB (ncv) = CvXSUB (xcv); |
2579 |
|
|
CvANON_on (ncv); |
2580 |
|
|
|
2581 |
|
|
mg = sv_magicext ((SV *)ncv, 0, CORO_MAGIC_type_state, &coro_gensub_vtbl, (char *)coro, 0); |
2582 |
|
|
RETVAL = newRV_noinc ((SV *)ncv); |
2583 |
|
|
} |
2584 |
|
|
OUTPUT: |
2585 |
|
|
RETVAL |
2586 |
|
|
|
2587 |
|
|
#endif |
2588 |
|
|
|
2589 |
root |
1.159 |
|
2590 |
root |
1.89 |
MODULE = Coro::State PACKAGE = Coro::AIO |
2591 |
|
|
|
2592 |
root |
1.249 |
void |
2593 |
|
|
_get_state (SV *self) |
2594 |
root |
1.275 |
PROTOTYPE: $ |
2595 |
root |
1.249 |
PPCODE: |
2596 |
root |
1.70 |
{ |
2597 |
root |
1.249 |
AV *defav = GvAV (PL_defgv); |
2598 |
|
|
AV *av = newAV (); |
2599 |
|
|
int i; |
2600 |
|
|
SV *data_sv = newSV (sizeof (struct io_state)); |
2601 |
|
|
struct io_state *data = (struct io_state *)SvPVX (data_sv); |
2602 |
|
|
SvCUR_set (data_sv, sizeof (struct io_state)); |
2603 |
|
|
SvPOK_only (data_sv); |
2604 |
root |
1.120 |
|
2605 |
|
|
data->errorno = errno; |
2606 |
|
|
data->laststype = PL_laststype; |
2607 |
|
|
data->laststatval = PL_laststatval; |
2608 |
|
|
data->statcache = PL_statcache; |
2609 |
root |
1.249 |
|
2610 |
|
|
av_extend (av, AvFILLp (defav) + 1 + 1); |
2611 |
|
|
|
2612 |
|
|
for (i = 0; i <= AvFILLp (defav); ++i) |
2613 |
|
|
av_push (av, SvREFCNT_inc_NN (AvARRAY (defav)[i])); |
2614 |
|
|
|
2615 |
|
|
av_push (av, data_sv); |
2616 |
|
|
|
2617 |
|
|
XPUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
2618 |
|
|
|
2619 |
root |
1.270 |
api_ready (aTHX_ self); |
2620 |
root |
1.70 |
} |
2621 |
|
|
|
2622 |
|
|
void |
2623 |
root |
1.249 |
_set_state (SV *state) |
2624 |
root |
1.70 |
PROTOTYPE: $ |
2625 |
root |
1.249 |
PPCODE: |
2626 |
root |
1.70 |
{ |
2627 |
root |
1.249 |
AV *av = (AV *)SvRV (state); |
2628 |
|
|
struct io_state *data = (struct io_state *)SvPVX (AvARRAY (av)[AvFILLp (av)]); |
2629 |
|
|
int i; |
2630 |
root |
1.70 |
|
2631 |
root |
1.120 |
errno = data->errorno; |
2632 |
|
|
PL_laststype = data->laststype; |
2633 |
root |
1.70 |
PL_laststatval = data->laststatval; |
2634 |
root |
1.120 |
PL_statcache = data->statcache; |
2635 |
root |
1.249 |
|
2636 |
|
|
EXTEND (SP, AvFILLp (av)); |
2637 |
|
|
for (i = 0; i < AvFILLp (av); ++i) |
2638 |
|
|
PUSHs (sv_2mortal (SvREFCNT_inc_NN (AvARRAY (av)[i]))); |
2639 |
root |
1.70 |
} |
2640 |
root |
1.120 |
|
2641 |
root |
1.233 |
|
2642 |
|
|
MODULE = Coro::State PACKAGE = Coro::AnyEvent |
2643 |
|
|
|
2644 |
|
|
BOOT: |
2645 |
|
|
sv_activity = coro_get_sv (aTHX_ "Coro::AnyEvent::ACTIVITY", TRUE); |
2646 |
|
|
|
2647 |
|
|
SV * |
2648 |
root |
1.237 |
_schedule (...) |
2649 |
root |
1.233 |
CODE: |
2650 |
|
|
{ |
2651 |
|
|
static int incede; |
2652 |
|
|
|
2653 |
root |
1.270 |
api_cede_notself (aTHX); |
2654 |
root |
1.233 |
|
2655 |
|
|
++incede; |
2656 |
root |
1.270 |
while (coro_nready >= incede && api_cede (aTHX)) |
2657 |
root |
1.233 |
; |
2658 |
|
|
|
2659 |
|
|
sv_setsv (sv_activity, &PL_sv_undef); |
2660 |
|
|
if (coro_nready >= incede) |
2661 |
|
|
{ |
2662 |
|
|
PUSHMARK (SP); |
2663 |
|
|
PUTBACK; |
2664 |
|
|
call_pv ("Coro::AnyEvent::_activity", G_DISCARD | G_EVAL); |
2665 |
|
|
SPAGAIN; |
2666 |
|
|
} |
2667 |
|
|
|
2668 |
|
|
--incede; |
2669 |
|
|
} |
2670 |
|
|
|
2671 |
root |
1.246 |
|
2672 |
|
|
MODULE = Coro::State PACKAGE = PerlIO::cede |
2673 |
|
|
|
2674 |
|
|
BOOT: |
2675 |
|
|
PerlIO_define_layer (aTHX_ &PerlIO_cede); |
2676 |
root |
1.263 |
|
2677 |
root |
1.275 |
MODULE = Coro::State PACKAGE = Coro::Semaphore |
2678 |
|
|
|
2679 |
|
|
SV * |
2680 |
|
|
new (SV *klass, SV *count_ = 0) |
2681 |
|
|
CODE: |
2682 |
|
|
{ |
2683 |
|
|
/* a semaphore contains a counter IV in $sem->[0] and any waiters after that */ |
2684 |
|
|
AV *av = newAV (); |
2685 |
|
|
av_push (av, newSViv (count_ && SvOK (count_) ? SvIV (count_) : 1)); |
2686 |
|
|
RETVAL = sv_bless (newRV_noinc ((SV *)av), GvSTASH (CvGV (cv))); |
2687 |
|
|
} |
2688 |
|
|
OUTPUT: |
2689 |
|
|
RETVAL |
2690 |
|
|
|
2691 |
|
|
SV * |
2692 |
|
|
count (SV *self) |
2693 |
|
|
CODE: |
2694 |
|
|
RETVAL = newSVsv (AvARRAY ((AV *)SvRV (self))[0]); |
2695 |
|
|
OUTPUT: |
2696 |
|
|
RETVAL |
2697 |
|
|
|
2698 |
|
|
void |
2699 |
|
|
up (SV *self, int adjust = 1) |
2700 |
|
|
ALIAS: |
2701 |
|
|
adjust = 1 |
2702 |
|
|
CODE: |
2703 |
|
|
{ |
2704 |
|
|
AV *av = (AV *)SvRV (self); |
2705 |
|
|
SV *count_sv = AvARRAY (av)[0]; |
2706 |
|
|
IV count = SvIVX (count_sv); |
2707 |
|
|
|
2708 |
|
|
count += ix ? adjust : 1; |
2709 |
|
|
SvIVX (count_sv) = count; |
2710 |
|
|
|
2711 |
|
|
/* now wake up as many waiters as possible */ |
2712 |
|
|
while (count > 0 && AvFILLp (av) >= count) |
2713 |
|
|
{ |
2714 |
|
|
SV *cb; |
2715 |
|
|
|
2716 |
|
|
/* swap first two elements so we can shift a waiter */ |
2717 |
|
|
AvARRAY (av)[0] = AvARRAY (av)[1]; |
2718 |
|
|
AvARRAY (av)[1] = count_sv; |
2719 |
|
|
cb = av_shift (av); |
2720 |
|
|
|
2721 |
|
|
if (SvOBJECT (cb)) |
2722 |
|
|
api_ready (cb); |
2723 |
|
|
else |
2724 |
|
|
croak ("callbacks not yet supported"); |
2725 |
|
|
|
2726 |
|
|
SvREFCNT_dec (cb); |
2727 |
|
|
} |
2728 |
|
|
} |
2729 |
|
|
|
2730 |
|
|
void |
2731 |
|
|
down (SV *self) |
2732 |
|
|
CODE: |
2733 |
root |
1.276 |
api_execute_slf (aTHX_ cv, slf_init_semaphore_down, &ST (0), 1); |
2734 |
root |
1.275 |
|
2735 |
|
|
void |
2736 |
|
|
try (SV *self) |
2737 |
|
|
PPCODE: |
2738 |
|
|
{ |
2739 |
|
|
AV *av = (AV *)SvRV (self); |
2740 |
|
|
SV *count_sv = AvARRAY (av)[0]; |
2741 |
|
|
IV count = SvIVX (count_sv); |
2742 |
|
|
|
2743 |
|
|
if (count > 0) |
2744 |
|
|
{ |
2745 |
|
|
--count; |
2746 |
|
|
SvIVX (count_sv) = count; |
2747 |
|
|
XSRETURN_YES; |
2748 |
|
|
} |
2749 |
|
|
else |
2750 |
|
|
XSRETURN_NO; |
2751 |
|
|
} |
2752 |
|
|
|
2753 |
|
|
void |
2754 |
|
|
waiters (SV *self) |
2755 |
|
|
CODE: |
2756 |
|
|
{ |
2757 |
|
|
AV *av = (AV *)SvRV (self); |
2758 |
|
|
|
2759 |
|
|
if (GIMME_V == G_SCALAR) |
2760 |
|
|
XPUSHs (sv_2mortal (newSVsv (AvARRAY (av)[0]))); |
2761 |
|
|
else |
2762 |
|
|
{ |
2763 |
|
|
int i; |
2764 |
|
|
EXTEND (SP, AvFILLp (av) + 1 - 1); |
2765 |
|
|
for (i = 1; i <= AvFILLp (av); ++i) |
2766 |
|
|
PUSHs (newSVsv (AvARRAY (av)[i])); |
2767 |
|
|
} |
2768 |
|
|
} |
2769 |
|
|
|