1 |
pcg |
1.56 |
#define PERL_NO_GET_CONTEXT |
2 |
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3 |
root |
1.63 |
#include "libcoro/coro.c" |
4 |
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5 |
root |
1.1 |
#include "EXTERN.h" |
6 |
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#include "perl.h" |
7 |
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#include "XSUB.h" |
8 |
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9 |
pcg |
1.46 |
#include "patchlevel.h" |
10 |
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11 |
root |
1.65 |
#if PERL_VERSION < 6 |
12 |
pcg |
1.46 |
# ifndef PL_ppaddr |
13 |
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# define PL_ppaddr ppaddr |
14 |
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# endif |
15 |
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# ifndef call_sv |
16 |
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# define call_sv perl_call_sv |
17 |
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# endif |
18 |
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# ifndef get_sv |
19 |
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# define get_sv perl_get_sv |
20 |
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# endif |
21 |
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# ifndef get_cv |
22 |
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# define get_cv perl_get_cv |
23 |
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# endif |
24 |
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# ifndef IS_PADGV |
25 |
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# define IS_PADGV(v) 0 |
26 |
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# endif |
27 |
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# ifndef IS_PADCONST |
28 |
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# define IS_PADCONST(v) 0 |
29 |
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# endif |
30 |
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#endif |
31 |
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32 |
root |
1.70 |
#include <errno.h> |
33 |
root |
1.20 |
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34 |
root |
1.78 |
#if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
35 |
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# undef STACKGUARD |
36 |
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#endif |
37 |
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38 |
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#ifndef STACKGUARD |
39 |
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# define STACKGUARD 0 |
40 |
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#endif |
41 |
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42 |
root |
1.13 |
#ifdef HAVE_MMAP |
43 |
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# include <unistd.h> |
44 |
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# include <sys/mman.h> |
45 |
root |
1.36 |
# ifndef MAP_ANONYMOUS |
46 |
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# ifdef MAP_ANON |
47 |
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# define MAP_ANONYMOUS MAP_ANON |
48 |
root |
1.16 |
# else |
49 |
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# undef HAVE_MMAP |
50 |
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# endif |
51 |
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# endif |
52 |
root |
1.78 |
# include <limits.h> |
53 |
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# ifndef PAGESIZE |
54 |
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# define PAGESIZE pagesize |
55 |
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# define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
56 |
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static long pagesize; |
57 |
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# else |
58 |
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# define BOOT_PAGESIZE |
59 |
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# endif |
60 |
root |
1.3 |
#endif |
61 |
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62 |
root |
1.88 |
#define SUB_INIT "Coro::State::initialize" |
63 |
root |
1.14 |
|
64 |
root |
1.28 |
/* The next macro should declare a variable stacklevel that contains and approximation |
65 |
root |
1.23 |
* to the current C stack pointer. Its property is that it changes with each call |
66 |
root |
1.15 |
* and should be unique. */ |
67 |
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#define dSTACKLEVEL void *stacklevel = &stacklevel |
68 |
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69 |
root |
1.34 |
#define IN_DESTRUCT (PL_main_cv == Nullcv) |
70 |
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71 |
root |
1.15 |
#define labs(l) ((l) >= 0 ? (l) : -(l)) |
72 |
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73 |
root |
1.23 |
#include "CoroAPI.h" |
74 |
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75 |
pcg |
1.55 |
#ifdef USE_ITHREADS |
76 |
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static perl_mutex coro_mutex; |
77 |
root |
1.69 |
# define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
78 |
pcg |
1.55 |
# define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
79 |
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#else |
80 |
root |
1.69 |
# define LOCK (void)0 |
81 |
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# define UNLOCK (void)0 |
82 |
pcg |
1.55 |
#endif |
83 |
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84 |
root |
1.23 |
static struct CoroAPI coroapi; |
85 |
pcg |
1.56 |
static AV *main_mainstack; /* used to differentiate between $main and others */ |
86 |
root |
1.88 |
static HV *coro_state_stash, *coro_stash; |
87 |
pcg |
1.58 |
static SV *coro_mortal; /* will be freed after next transfer */ |
88 |
root |
1.23 |
|
89 |
root |
1.89 |
/* this is actually not just the c stack but also c registers etc... */ |
90 |
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typedef struct coro_stack { |
91 |
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struct coro_stack *next; |
92 |
root |
1.15 |
|
93 |
root |
1.89 |
void *idle_sp; |
94 |
root |
1.15 |
void *sptr; |
95 |
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long ssize; /* positive == mmap, otherwise malloc */ |
96 |
root |
1.89 |
|
97 |
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/* cpu state */ |
98 |
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coro_context cctx; |
99 |
root |
1.15 |
} coro_stack; |
100 |
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101 |
root |
1.89 |
static coro_stack *main_stack; |
102 |
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103 |
root |
1.1 |
struct coro { |
104 |
root |
1.7 |
/* optionally saved, might be zero */ |
105 |
root |
1.3 |
AV *defav; |
106 |
root |
1.7 |
SV *defsv; |
107 |
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SV *errsv; |
108 |
root |
1.1 |
|
109 |
root |
1.7 |
/* saved global state not related to stacks */ |
110 |
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U8 dowarn; |
111 |
root |
1.19 |
I32 in_eval; |
112 |
root |
1.7 |
|
113 |
root |
1.89 |
/* the c stack, if any */ |
114 |
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coro_stack *stack; |
115 |
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116 |
root |
1.7 |
/* the stacks and related info (callchain etc..) */ |
117 |
root |
1.1 |
PERL_SI *curstackinfo; |
118 |
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AV *curstack; |
119 |
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AV *mainstack; |
120 |
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SV **stack_sp; |
121 |
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OP *op; |
122 |
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SV **curpad; |
123 |
root |
1.44 |
AV *comppad; |
124 |
root |
1.62 |
CV *compcv; |
125 |
root |
1.1 |
SV **stack_base; |
126 |
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SV **stack_max; |
127 |
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SV **tmps_stack; |
128 |
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I32 tmps_floor; |
129 |
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I32 tmps_ix; |
130 |
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I32 tmps_max; |
131 |
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I32 *markstack; |
132 |
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I32 *markstack_ptr; |
133 |
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I32 *markstack_max; |
134 |
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I32 *scopestack; |
135 |
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I32 scopestack_ix; |
136 |
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I32 scopestack_max; |
137 |
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ANY *savestack; |
138 |
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I32 savestack_ix; |
139 |
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I32 savestack_max; |
140 |
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OP **retstack; |
141 |
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I32 retstack_ix; |
142 |
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I32 retstack_max; |
143 |
root |
1.66 |
PMOP *curpm; |
144 |
root |
1.1 |
COP *curcop; |
145 |
root |
1.13 |
JMPENV *top_env; |
146 |
root |
1.1 |
|
147 |
root |
1.87 |
/* coro process data */ |
148 |
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int prio; |
149 |
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|
150 |
root |
1.7 |
/* data associated with this coroutine (initial args) */ |
151 |
root |
1.3 |
AV *args; |
152 |
root |
1.87 |
int refcnt; |
153 |
root |
1.1 |
}; |
154 |
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155 |
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typedef struct coro *Coro__State; |
156 |
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typedef struct coro *Coro__State_or_hashref; |
157 |
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158 |
root |
1.77 |
static AV * |
159 |
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coro_clone_padlist (pTHX_ CV *cv) |
160 |
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{ |
161 |
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AV *padlist = CvPADLIST (cv); |
162 |
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AV *newpadlist, *newpad; |
163 |
root |
1.3 |
|
164 |
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newpadlist = newAV (); |
165 |
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AvREAL_off (newpadlist); |
166 |
root |
1.79 |
#if PERL_VERSION < 9 |
167 |
root |
1.77 |
Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
168 |
root |
1.79 |
#else |
169 |
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Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
170 |
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#endif |
171 |
root |
1.77 |
newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
172 |
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--AvFILLp (padlist); |
173 |
root |
1.3 |
|
174 |
root |
1.77 |
av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
175 |
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av_store (newpadlist, 1, (SV *)newpad); |
176 |
root |
1.3 |
|
177 |
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return newpadlist; |
178 |
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} |
179 |
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180 |
root |
1.77 |
static void |
181 |
pcg |
1.56 |
free_padlist (pTHX_ AV *padlist) |
182 |
root |
1.3 |
{ |
183 |
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/* may be during global destruction */ |
184 |
pcg |
1.50 |
if (SvREFCNT (padlist)) |
185 |
root |
1.3 |
{ |
186 |
pcg |
1.50 |
I32 i = AvFILLp (padlist); |
187 |
root |
1.3 |
while (i >= 0) |
188 |
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{ |
189 |
pcg |
1.50 |
SV **svp = av_fetch (padlist, i--, FALSE); |
190 |
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if (svp) |
191 |
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{ |
192 |
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SV *sv; |
193 |
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while (&PL_sv_undef != (sv = av_pop ((AV *)*svp))) |
194 |
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SvREFCNT_dec (sv); |
195 |
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196 |
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SvREFCNT_dec (*svp); |
197 |
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} |
198 |
root |
1.3 |
} |
199 |
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200 |
pcg |
1.50 |
SvREFCNT_dec ((SV*)padlist); |
201 |
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} |
202 |
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} |
203 |
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204 |
root |
1.77 |
static int |
205 |
pcg |
1.54 |
coro_cv_free (pTHX_ SV *sv, MAGIC *mg) |
206 |
pcg |
1.50 |
{ |
207 |
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AV *padlist; |
208 |
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AV *av = (AV *)mg->mg_obj; |
209 |
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210 |
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/* casting is fun. */ |
211 |
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while (&PL_sv_undef != (SV *)(padlist = (AV *)av_pop (av))) |
212 |
pcg |
1.56 |
free_padlist (aTHX_ padlist); |
213 |
root |
1.61 |
|
214 |
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SvREFCNT_dec (av); |
215 |
root |
1.76 |
|
216 |
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return 0; |
217 |
root |
1.3 |
} |
218 |
pcg |
1.50 |
|
219 |
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#define PERL_MAGIC_coro PERL_MAGIC_ext |
220 |
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221 |
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static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
222 |
root |
1.3 |
|
223 |
root |
1.7 |
/* the next two functions merely cache the padlists */ |
224 |
root |
1.77 |
static void |
225 |
pcg |
1.56 |
get_padlist (pTHX_ CV *cv) |
226 |
root |
1.3 |
{ |
227 |
pcg |
1.50 |
MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
228 |
root |
1.4 |
|
229 |
pcg |
1.50 |
if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
230 |
|
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CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
231 |
root |
1.4 |
else |
232 |
root |
1.77 |
{ |
233 |
|
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#if 0 |
234 |
|
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/* this should work - but it doesn't :( */ |
235 |
|
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CV *cp = Perl_cv_clone (aTHX_ cv); |
236 |
|
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CvPADLIST (cv) = CvPADLIST (cp); |
237 |
|
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CvPADLIST (cp) = 0; |
238 |
|
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SvREFCNT_dec (cp); |
239 |
|
|
#else |
240 |
|
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CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
241 |
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#endif |
242 |
|
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} |
243 |
root |
1.4 |
} |
244 |
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|
245 |
root |
1.77 |
static void |
246 |
pcg |
1.56 |
put_padlist (pTHX_ CV *cv) |
247 |
root |
1.4 |
{ |
248 |
pcg |
1.50 |
MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
249 |
root |
1.7 |
|
250 |
pcg |
1.50 |
if (!mg) |
251 |
root |
1.7 |
{ |
252 |
pcg |
1.50 |
sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
253 |
|
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mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
254 |
|
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mg->mg_virtual = &vtbl_coro; |
255 |
|
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mg->mg_obj = (SV *)newAV (); |
256 |
root |
1.7 |
} |
257 |
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|
258 |
pcg |
1.50 |
av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
259 |
root |
1.7 |
} |
260 |
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|
261 |
|
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#define SB do { |
262 |
|
|
#define SE } while (0) |
263 |
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|
264 |
root |
1.28 |
#define LOAD(state) load_state(aTHX_ (state)); |
265 |
|
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#define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
266 |
root |
1.7 |
|
267 |
pcg |
1.47 |
#define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
268 |
root |
1.7 |
|
269 |
|
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static void |
270 |
|
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load_state(pTHX_ Coro__State c) |
271 |
|
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{ |
272 |
|
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PL_dowarn = c->dowarn; |
273 |
root |
1.19 |
PL_in_eval = c->in_eval; |
274 |
root |
1.7 |
|
275 |
|
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PL_curstackinfo = c->curstackinfo; |
276 |
|
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PL_curstack = c->curstack; |
277 |
|
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PL_mainstack = c->mainstack; |
278 |
|
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PL_stack_sp = c->stack_sp; |
279 |
|
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PL_op = c->op; |
280 |
|
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PL_curpad = c->curpad; |
281 |
root |
1.44 |
PL_comppad = c->comppad; |
282 |
root |
1.62 |
PL_compcv = c->compcv; |
283 |
root |
1.7 |
PL_stack_base = c->stack_base; |
284 |
|
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PL_stack_max = c->stack_max; |
285 |
|
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PL_tmps_stack = c->tmps_stack; |
286 |
|
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PL_tmps_floor = c->tmps_floor; |
287 |
|
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PL_tmps_ix = c->tmps_ix; |
288 |
|
|
PL_tmps_max = c->tmps_max; |
289 |
|
|
PL_markstack = c->markstack; |
290 |
|
|
PL_markstack_ptr = c->markstack_ptr; |
291 |
|
|
PL_markstack_max = c->markstack_max; |
292 |
|
|
PL_scopestack = c->scopestack; |
293 |
|
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PL_scopestack_ix = c->scopestack_ix; |
294 |
|
|
PL_scopestack_max = c->scopestack_max; |
295 |
|
|
PL_savestack = c->savestack; |
296 |
|
|
PL_savestack_ix = c->savestack_ix; |
297 |
|
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PL_savestack_max = c->savestack_max; |
298 |
root |
1.72 |
#if PERL_VERSION < 9 |
299 |
root |
1.7 |
PL_retstack = c->retstack; |
300 |
|
|
PL_retstack_ix = c->retstack_ix; |
301 |
|
|
PL_retstack_max = c->retstack_max; |
302 |
root |
1.71 |
#endif |
303 |
root |
1.66 |
PL_curpm = c->curpm; |
304 |
root |
1.7 |
PL_curcop = c->curcop; |
305 |
root |
1.13 |
PL_top_env = c->top_env; |
306 |
root |
1.7 |
|
307 |
|
|
if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
308 |
|
|
if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
309 |
|
|
if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
310 |
|
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|
311 |
|
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{ |
312 |
|
|
dSP; |
313 |
|
|
CV *cv; |
314 |
|
|
|
315 |
|
|
/* now do the ugly restore mess */ |
316 |
|
|
while ((cv = (CV *)POPs)) |
317 |
|
|
{ |
318 |
|
|
AV *padlist = (AV *)POPs; |
319 |
|
|
|
320 |
|
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if (padlist) |
321 |
|
|
{ |
322 |
pcg |
1.56 |
put_padlist (aTHX_ cv); /* mark this padlist as available */ |
323 |
root |
1.7 |
CvPADLIST(cv) = padlist; |
324 |
|
|
} |
325 |
|
|
|
326 |
|
|
++CvDEPTH(cv); |
327 |
|
|
} |
328 |
|
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|
329 |
|
|
PUTBACK; |
330 |
|
|
} |
331 |
|
|
} |
332 |
|
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|
333 |
root |
1.3 |
static void |
334 |
root |
1.7 |
save_state(pTHX_ Coro__State c, int flags) |
335 |
root |
1.3 |
{ |
336 |
|
|
{ |
337 |
|
|
dSP; |
338 |
|
|
I32 cxix = cxstack_ix; |
339 |
root |
1.11 |
PERL_CONTEXT *ccstk = cxstack; |
340 |
root |
1.3 |
PERL_SI *top_si = PL_curstackinfo; |
341 |
|
|
|
342 |
|
|
/* |
343 |
|
|
* the worst thing you can imagine happens first - we have to save |
344 |
|
|
* (and reinitialize) all cv's in the whole callchain :( |
345 |
|
|
*/ |
346 |
|
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|
347 |
|
|
PUSHs (Nullsv); |
348 |
|
|
/* this loop was inspired by pp_caller */ |
349 |
|
|
for (;;) |
350 |
|
|
{ |
351 |
root |
1.30 |
while (cxix >= 0) |
352 |
root |
1.3 |
{ |
353 |
root |
1.4 |
PERL_CONTEXT *cx = &ccstk[cxix--]; |
354 |
root |
1.3 |
|
355 |
|
|
if (CxTYPE(cx) == CXt_SUB) |
356 |
|
|
{ |
357 |
|
|
CV *cv = cx->blk_sub.cv; |
358 |
|
|
if (CvDEPTH(cv)) |
359 |
|
|
{ |
360 |
root |
1.7 |
EXTEND (SP, CvDEPTH(cv)*2); |
361 |
|
|
|
362 |
|
|
while (--CvDEPTH(cv)) |
363 |
|
|
{ |
364 |
|
|
/* this tells the restore code to increment CvDEPTH */ |
365 |
|
|
PUSHs (Nullsv); |
366 |
|
|
PUSHs ((SV *)cv); |
367 |
|
|
} |
368 |
|
|
|
369 |
root |
1.3 |
PUSHs ((SV *)CvPADLIST(cv)); |
370 |
|
|
PUSHs ((SV *)cv); |
371 |
|
|
|
372 |
root |
1.77 |
get_padlist (aTHX_ cv); |
373 |
root |
1.3 |
} |
374 |
|
|
} |
375 |
pcg |
1.46 |
#ifdef CXt_FORMAT |
376 |
root |
1.3 |
else if (CxTYPE(cx) == CXt_FORMAT) |
377 |
|
|
{ |
378 |
|
|
/* I never used formats, so how should I know how these are implemented? */ |
379 |
|
|
/* my bold guess is as a simple, plain sub... */ |
380 |
|
|
croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
381 |
|
|
} |
382 |
pcg |
1.46 |
#endif |
383 |
root |
1.3 |
} |
384 |
|
|
|
385 |
|
|
if (top_si->si_type == PERLSI_MAIN) |
386 |
|
|
break; |
387 |
|
|
|
388 |
|
|
top_si = top_si->si_prev; |
389 |
|
|
ccstk = top_si->si_cxstack; |
390 |
|
|
cxix = top_si->si_cxix; |
391 |
|
|
} |
392 |
|
|
|
393 |
|
|
PUTBACK; |
394 |
|
|
} |
395 |
|
|
|
396 |
root |
1.12 |
c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
397 |
|
|
c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
398 |
|
|
c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
399 |
root |
1.7 |
|
400 |
root |
1.3 |
c->dowarn = PL_dowarn; |
401 |
root |
1.19 |
c->in_eval = PL_in_eval; |
402 |
root |
1.7 |
|
403 |
root |
1.3 |
c->curstackinfo = PL_curstackinfo; |
404 |
|
|
c->curstack = PL_curstack; |
405 |
|
|
c->mainstack = PL_mainstack; |
406 |
|
|
c->stack_sp = PL_stack_sp; |
407 |
|
|
c->op = PL_op; |
408 |
|
|
c->curpad = PL_curpad; |
409 |
root |
1.44 |
c->comppad = PL_comppad; |
410 |
root |
1.62 |
c->compcv = PL_compcv; |
411 |
root |
1.3 |
c->stack_base = PL_stack_base; |
412 |
|
|
c->stack_max = PL_stack_max; |
413 |
|
|
c->tmps_stack = PL_tmps_stack; |
414 |
|
|
c->tmps_floor = PL_tmps_floor; |
415 |
|
|
c->tmps_ix = PL_tmps_ix; |
416 |
|
|
c->tmps_max = PL_tmps_max; |
417 |
|
|
c->markstack = PL_markstack; |
418 |
|
|
c->markstack_ptr = PL_markstack_ptr; |
419 |
|
|
c->markstack_max = PL_markstack_max; |
420 |
|
|
c->scopestack = PL_scopestack; |
421 |
|
|
c->scopestack_ix = PL_scopestack_ix; |
422 |
|
|
c->scopestack_max = PL_scopestack_max; |
423 |
|
|
c->savestack = PL_savestack; |
424 |
|
|
c->savestack_ix = PL_savestack_ix; |
425 |
|
|
c->savestack_max = PL_savestack_max; |
426 |
root |
1.72 |
#if PERL_VERSION < 9 |
427 |
root |
1.3 |
c->retstack = PL_retstack; |
428 |
|
|
c->retstack_ix = PL_retstack_ix; |
429 |
|
|
c->retstack_max = PL_retstack_max; |
430 |
root |
1.71 |
#endif |
431 |
root |
1.66 |
c->curpm = PL_curpm; |
432 |
root |
1.3 |
c->curcop = PL_curcop; |
433 |
root |
1.13 |
c->top_env = PL_top_env; |
434 |
|
|
} |
435 |
|
|
|
436 |
|
|
/* |
437 |
|
|
* allocate various perl stacks. This is an exact copy |
438 |
|
|
* of perl.c:init_stacks, except that it uses less memory |
439 |
pcg |
1.52 |
* on the (sometimes correct) assumption that coroutines do |
440 |
|
|
* not usually need a lot of stackspace. |
441 |
root |
1.13 |
*/ |
442 |
root |
1.77 |
static void |
443 |
root |
1.13 |
coro_init_stacks (pTHX) |
444 |
|
|
{ |
445 |
pcg |
1.55 |
LOCK; |
446 |
|
|
|
447 |
root |
1.13 |
PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
448 |
|
|
PL_curstackinfo->si_type = PERLSI_MAIN; |
449 |
|
|
PL_curstack = PL_curstackinfo->si_stack; |
450 |
|
|
PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
451 |
|
|
|
452 |
|
|
PL_stack_base = AvARRAY(PL_curstack); |
453 |
|
|
PL_stack_sp = PL_stack_base; |
454 |
|
|
PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
455 |
|
|
|
456 |
root |
1.15 |
New(50,PL_tmps_stack,96,SV*); |
457 |
root |
1.13 |
PL_tmps_floor = -1; |
458 |
|
|
PL_tmps_ix = -1; |
459 |
root |
1.15 |
PL_tmps_max = 96; |
460 |
root |
1.13 |
|
461 |
root |
1.15 |
New(54,PL_markstack,16,I32); |
462 |
root |
1.13 |
PL_markstack_ptr = PL_markstack; |
463 |
root |
1.15 |
PL_markstack_max = PL_markstack + 16; |
464 |
root |
1.13 |
|
465 |
pcg |
1.46 |
#ifdef SET_MARK_OFFSET |
466 |
root |
1.13 |
SET_MARK_OFFSET; |
467 |
pcg |
1.46 |
#endif |
468 |
root |
1.13 |
|
469 |
root |
1.15 |
New(54,PL_scopestack,16,I32); |
470 |
root |
1.13 |
PL_scopestack_ix = 0; |
471 |
root |
1.15 |
PL_scopestack_max = 16; |
472 |
root |
1.13 |
|
473 |
root |
1.15 |
New(54,PL_savestack,96,ANY); |
474 |
root |
1.13 |
PL_savestack_ix = 0; |
475 |
root |
1.15 |
PL_savestack_max = 96; |
476 |
root |
1.13 |
|
477 |
root |
1.72 |
#if PERL_VERSION < 9 |
478 |
root |
1.13 |
New(54,PL_retstack,8,OP*); |
479 |
|
|
PL_retstack_ix = 0; |
480 |
|
|
PL_retstack_max = 8; |
481 |
root |
1.71 |
#endif |
482 |
pcg |
1.55 |
|
483 |
|
|
UNLOCK; |
484 |
root |
1.3 |
} |
485 |
root |
1.1 |
|
486 |
root |
1.7 |
/* |
487 |
|
|
* destroy the stacks, the callchain etc... |
488 |
|
|
*/ |
489 |
root |
1.77 |
static void |
490 |
root |
1.4 |
destroy_stacks(pTHX) |
491 |
root |
1.1 |
{ |
492 |
root |
1.34 |
if (!IN_DESTRUCT) |
493 |
root |
1.31 |
{ |
494 |
|
|
/* is this ugly, I ask? */ |
495 |
pcg |
1.52 |
LEAVE_SCOPE (0); |
496 |
root |
1.31 |
|
497 |
|
|
/* sure it is, but more important: is it correct?? :/ */ |
498 |
pcg |
1.52 |
FREETMPS; |
499 |
pcg |
1.57 |
|
500 |
|
|
/*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
501 |
root |
1.31 |
} |
502 |
root |
1.7 |
|
503 |
root |
1.4 |
while (PL_curstackinfo->si_next) |
504 |
|
|
PL_curstackinfo = PL_curstackinfo->si_next; |
505 |
|
|
|
506 |
|
|
while (PL_curstackinfo) |
507 |
|
|
{ |
508 |
|
|
PERL_SI *p = PL_curstackinfo->si_prev; |
509 |
|
|
|
510 |
pcg |
1.57 |
{ /*D*//*remove*/ |
511 |
root |
1.7 |
dSP; |
512 |
|
|
SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
513 |
|
|
PUTBACK; /* possibly superfluous */ |
514 |
|
|
} |
515 |
|
|
|
516 |
root |
1.34 |
if (!IN_DESTRUCT) |
517 |
root |
1.31 |
{ |
518 |
pcg |
1.57 |
dounwind (-1);/*D*//*remove*/ |
519 |
|
|
SvREFCNT_dec (PL_curstackinfo->si_stack); |
520 |
root |
1.31 |
} |
521 |
root |
1.7 |
|
522 |
pcg |
1.57 |
Safefree (PL_curstackinfo->si_cxstack); |
523 |
|
|
Safefree (PL_curstackinfo); |
524 |
root |
1.4 |
PL_curstackinfo = p; |
525 |
|
|
} |
526 |
|
|
|
527 |
pcg |
1.57 |
Safefree (PL_tmps_stack); |
528 |
|
|
Safefree (PL_markstack); |
529 |
|
|
Safefree (PL_scopestack); |
530 |
|
|
Safefree (PL_savestack); |
531 |
root |
1.72 |
#if PERL_VERSION < 9 |
532 |
pcg |
1.57 |
Safefree (PL_retstack); |
533 |
root |
1.71 |
#endif |
534 |
root |
1.1 |
} |
535 |
|
|
|
536 |
root |
1.13 |
static void |
537 |
root |
1.89 |
setup_coro (struct coro *coro) |
538 |
root |
1.13 |
{ |
539 |
root |
1.89 |
/* |
540 |
|
|
* emulate part of the perl startup here. |
541 |
|
|
*/ |
542 |
|
|
dTHX; |
543 |
|
|
dSP; |
544 |
|
|
UNOP myop; |
545 |
|
|
SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); |
546 |
root |
1.15 |
|
547 |
root |
1.89 |
coro_init_stacks (aTHX); |
548 |
|
|
/*PL_curcop = 0;*/ |
549 |
|
|
/*PL_in_eval = PL_in_eval;*/ /* inherit */ |
550 |
|
|
SvREFCNT_dec (GvAV (PL_defgv)); |
551 |
|
|
GvAV (PL_defgv) = coro->args; coro->args = 0; |
552 |
root |
1.15 |
|
553 |
root |
1.89 |
SPAGAIN; |
554 |
pcg |
1.55 |
|
555 |
root |
1.89 |
Zero (&myop, 1, UNOP); |
556 |
|
|
myop.op_next = Nullop; |
557 |
|
|
myop.op_flags = OPf_WANT_VOID; |
558 |
|
|
|
559 |
|
|
PL_op = (OP *)&myop; |
560 |
|
|
|
561 |
|
|
PUSHMARK(SP); |
562 |
|
|
XPUSHs (sub_init); |
563 |
|
|
PUTBACK; |
564 |
|
|
PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
565 |
|
|
SPAGAIN; |
566 |
root |
1.15 |
|
567 |
root |
1.89 |
ENTER; /* necessary e.g. for dounwind */ |
568 |
root |
1.13 |
} |
569 |
|
|
|
570 |
|
|
static void |
571 |
root |
1.89 |
transfer_tail () |
572 |
root |
1.13 |
{ |
573 |
root |
1.89 |
if (coro_mortal) |
574 |
root |
1.15 |
{ |
575 |
root |
1.89 |
SvREFCNT_dec (coro_mortal); |
576 |
|
|
coro_mortal = 0; |
577 |
|
|
} |
578 |
pcg |
1.47 |
|
579 |
root |
1.89 |
UNLOCK; |
580 |
root |
1.13 |
} |
581 |
|
|
|
582 |
|
|
static void |
583 |
root |
1.89 |
coro_run (void *arg) |
584 |
root |
1.13 |
{ |
585 |
|
|
/* |
586 |
root |
1.89 |
* this is a _very_ stripped down perl interpreter ;) |
587 |
root |
1.13 |
*/ |
588 |
pcg |
1.56 |
dTHX; |
589 |
root |
1.13 |
|
590 |
root |
1.89 |
transfer_tail (); |
591 |
|
|
|
592 |
|
|
PL_top_env = &PL_start_env; |
593 |
root |
1.91 |
PL_restartop = PL_op; |
594 |
root |
1.89 |
/* somebody will hit me for both perl_run and PL_restart_top */ |
595 |
|
|
perl_run (aTHX_ PERL_GET_CONTEXT); |
596 |
|
|
|
597 |
|
|
abort (); |
598 |
|
|
} |
599 |
|
|
|
600 |
|
|
static coro_stack * |
601 |
|
|
stack_new () |
602 |
|
|
{ |
603 |
|
|
coro_stack *stack; |
604 |
|
|
|
605 |
|
|
New (0, stack, 1, coro_stack); |
606 |
|
|
|
607 |
|
|
#if HAVE_MMAP |
608 |
root |
1.13 |
|
609 |
root |
1.89 |
stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */ |
610 |
|
|
stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
611 |
root |
1.19 |
|
612 |
root |
1.89 |
if (stack->sptr == (void *)-1) |
613 |
root |
1.13 |
{ |
614 |
root |
1.89 |
fprintf (stderr, "FATAL: unable to mmap stack for coroutine\n"); |
615 |
|
|
_exit (EXIT_FAILURE); |
616 |
|
|
} |
617 |
root |
1.15 |
|
618 |
root |
1.89 |
mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
619 |
root |
1.19 |
|
620 |
root |
1.89 |
#else |
621 |
|
|
|
622 |
|
|
stack->ssize = STACKSIZE * (long)sizeof (long); |
623 |
|
|
New (0, stack->sptr, STACKSIZE, long); |
624 |
|
|
|
625 |
|
|
if (!stack->sptr) |
626 |
|
|
{ |
627 |
|
|
fprintf (stderr, "FATAL: unable to malloc stack for coroutine\n"); |
628 |
|
|
_exit (EXIT_FAILURE); |
629 |
root |
1.13 |
} |
630 |
|
|
|
631 |
root |
1.89 |
#endif |
632 |
|
|
|
633 |
|
|
coro_create (&stack->cctx, coro_run, 0, stack->sptr, stack->ssize); |
634 |
root |
1.13 |
|
635 |
root |
1.89 |
return stack; |
636 |
root |
1.13 |
} |
637 |
|
|
|
638 |
root |
1.15 |
static void |
639 |
root |
1.89 |
stack_free (coro_stack *stack) |
640 |
root |
1.15 |
{ |
641 |
root |
1.89 |
if (!stack || stack == main_stack) |
642 |
|
|
return; |
643 |
|
|
|
644 |
|
|
#if HAVE_MMAP |
645 |
|
|
munmap (stack->sptr, stack->ssize); |
646 |
|
|
#else |
647 |
|
|
Safefree (stack->sptr); |
648 |
|
|
#endif |
649 |
|
|
|
650 |
|
|
Safefree (stack); |
651 |
|
|
} |
652 |
root |
1.32 |
|
653 |
root |
1.89 |
static coro_stack *stack_first; |
654 |
root |
1.15 |
|
655 |
root |
1.91 |
static coro_stack * |
656 |
|
|
stack_get () |
657 |
root |
1.89 |
{ |
658 |
root |
1.91 |
coro_stack *stack; |
659 |
|
|
|
660 |
root |
1.89 |
if (stack_first) |
661 |
|
|
{ |
662 |
root |
1.91 |
stack = stack_first; |
663 |
|
|
stack_first = stack->next; |
664 |
root |
1.89 |
} |
665 |
|
|
else |
666 |
root |
1.91 |
{ |
667 |
|
|
stack = stack_new (); |
668 |
|
|
PL_op = PL_op->op_next; |
669 |
|
|
} |
670 |
|
|
|
671 |
|
|
return stack; |
672 |
root |
1.89 |
} |
673 |
root |
1.19 |
|
674 |
root |
1.89 |
static void |
675 |
|
|
stack_put (coro_stack *stack) |
676 |
|
|
{ |
677 |
|
|
stack->next = stack_first; |
678 |
|
|
stack_first = stack; |
679 |
root |
1.15 |
} |
680 |
|
|
|
681 |
root |
1.84 |
/* never call directly, always through the coro_state_transfer global variable */ |
682 |
root |
1.77 |
static void |
683 |
root |
1.84 |
transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
684 |
root |
1.8 |
{ |
685 |
root |
1.15 |
dSTACKLEVEL; |
686 |
root |
1.8 |
|
687 |
root |
1.89 |
/* sometimes transfer is only called to set idle_sp */ |
688 |
|
|
if (!prev->stack->idle_sp) |
689 |
|
|
prev->stack->idle_sp = stacklevel; |
690 |
|
|
|
691 |
|
|
LOCK; |
692 |
|
|
|
693 |
root |
1.8 |
if (prev != next) |
694 |
|
|
{ |
695 |
root |
1.89 |
coro_stack *prev_stack = prev->stack; |
696 |
|
|
|
697 |
|
|
/* possibly "free" the stack */ |
698 |
root |
1.91 |
if (0 && prev_stack->idle_sp == stacklevel) |
699 |
root |
1.8 |
{ |
700 |
root |
1.89 |
stack_put (prev_stack); |
701 |
|
|
prev->stack = 0; |
702 |
|
|
} |
703 |
root |
1.13 |
|
704 |
root |
1.90 |
if (next->mainstack) |
705 |
root |
1.89 |
{ |
706 |
root |
1.90 |
/* coroutine already started */ |
707 |
|
|
SAVE (prev, flags); |
708 |
|
|
LOAD (next); |
709 |
|
|
} |
710 |
|
|
else |
711 |
|
|
{ |
712 |
|
|
/* need to start coroutine */ |
713 |
root |
1.89 |
/* first get rid of the old state */ |
714 |
|
|
SAVE (prev, -1); |
715 |
|
|
/* setup coroutine call */ |
716 |
|
|
setup_coro (next); |
717 |
root |
1.90 |
/* need to change stack from main_stack to real one */ |
718 |
root |
1.89 |
next->stack = 0; |
719 |
root |
1.8 |
} |
720 |
root |
1.15 |
|
721 |
root |
1.89 |
if (!next->stack) |
722 |
root |
1.91 |
next->stack = stack_get (); |
723 |
root |
1.81 |
|
724 |
root |
1.89 |
if (prev_stack != next->stack) |
725 |
|
|
coro_transfer (&prev_stack->cctx, &next->stack->cctx); |
726 |
root |
1.8 |
} |
727 |
root |
1.3 |
|
728 |
root |
1.89 |
transfer_tail (); |
729 |
root |
1.39 |
} |
730 |
root |
1.23 |
|
731 |
root |
1.85 |
/* use this function pointer to call the above function */ |
732 |
|
|
/* this is done to increase chances of the compiler not inlining the call */ |
733 |
root |
1.84 |
void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; |
734 |
|
|
|
735 |
root |
1.87 |
static void |
736 |
|
|
coro_state_destroy (struct coro *coro) |
737 |
|
|
{ |
738 |
|
|
if (coro->refcnt--) |
739 |
|
|
return; |
740 |
|
|
|
741 |
|
|
if (coro->mainstack && coro->mainstack != main_mainstack) |
742 |
|
|
{ |
743 |
|
|
struct coro temp; |
744 |
|
|
|
745 |
|
|
SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
746 |
|
|
LOAD (aTHX_ coro); |
747 |
|
|
|
748 |
|
|
destroy_stacks (aTHX); |
749 |
|
|
|
750 |
|
|
LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
751 |
|
|
|
752 |
|
|
coro->mainstack = 0; |
753 |
|
|
} |
754 |
|
|
|
755 |
root |
1.89 |
stack_free (coro->stack); |
756 |
root |
1.87 |
SvREFCNT_dec (coro->args); |
757 |
|
|
Safefree (coro); |
758 |
|
|
} |
759 |
|
|
|
760 |
|
|
static int |
761 |
|
|
coro_state_clear (SV *sv, MAGIC *mg) |
762 |
|
|
{ |
763 |
|
|
struct coro *coro = (struct coro *)mg->mg_ptr; |
764 |
|
|
mg->mg_ptr = 0; |
765 |
|
|
|
766 |
|
|
coro_state_destroy (coro); |
767 |
|
|
|
768 |
|
|
return 0; |
769 |
|
|
} |
770 |
|
|
|
771 |
|
|
static int |
772 |
|
|
coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) |
773 |
|
|
{ |
774 |
|
|
struct coro *coro = (struct coro *)mg->mg_ptr; |
775 |
|
|
|
776 |
|
|
++coro->refcnt; |
777 |
|
|
|
778 |
|
|
return 0; |
779 |
|
|
} |
780 |
|
|
|
781 |
|
|
static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; |
782 |
|
|
|
783 |
|
|
static struct coro * |
784 |
|
|
SvSTATE (SV *coro) |
785 |
|
|
{ |
786 |
root |
1.88 |
HV *stash; |
787 |
|
|
MAGIC *mg; |
788 |
|
|
|
789 |
|
|
if (SvROK (coro)) |
790 |
|
|
coro = SvRV (coro); |
791 |
|
|
|
792 |
|
|
stash = SvSTASH (coro); |
793 |
|
|
if (stash != coro_stash && stash != coro_state_stash) |
794 |
|
|
{ |
795 |
|
|
/* very slow, but rare, check */ |
796 |
|
|
if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
797 |
|
|
croak ("Coro::State object required"); |
798 |
|
|
} |
799 |
|
|
|
800 |
|
|
mg = SvMAGIC (coro); |
801 |
root |
1.87 |
assert (mg->mg_type == PERL_MAGIC_ext); |
802 |
|
|
return (struct coro *)mg->mg_ptr; |
803 |
|
|
} |
804 |
root |
1.23 |
|
805 |
|
|
static void |
806 |
root |
1.84 |
api_transfer (pTHX_ SV *prev, SV *next, int flags) |
807 |
root |
1.23 |
{ |
808 |
root |
1.84 |
coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
809 |
root |
1.21 |
} |
810 |
|
|
|
811 |
root |
1.22 |
/** Coro ********************************************************************/ |
812 |
|
|
|
813 |
|
|
#define PRIO_MAX 3 |
814 |
|
|
#define PRIO_HIGH 1 |
815 |
|
|
#define PRIO_NORMAL 0 |
816 |
|
|
#define PRIO_LOW -1 |
817 |
|
|
#define PRIO_IDLE -3 |
818 |
|
|
#define PRIO_MIN -4 |
819 |
|
|
|
820 |
|
|
/* for Coro.pm */ |
821 |
|
|
static GV *coro_current, *coro_idle; |
822 |
root |
1.83 |
static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
823 |
root |
1.25 |
static int coro_nready; |
824 |
root |
1.22 |
|
825 |
|
|
static void |
826 |
pcg |
1.56 |
coro_enq (pTHX_ SV *sv) |
827 |
root |
1.22 |
{ |
828 |
root |
1.74 |
int prio; |
829 |
|
|
|
830 |
root |
1.73 |
if (SvTYPE (sv) != SVt_PVHV) |
831 |
|
|
croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
832 |
root |
1.22 |
|
833 |
root |
1.88 |
prio = SvSTATE (sv)->prio; |
834 |
root |
1.22 |
|
835 |
root |
1.73 |
av_push (coro_ready [prio - PRIO_MIN], sv); |
836 |
|
|
coro_nready++; |
837 |
root |
1.22 |
} |
838 |
|
|
|
839 |
|
|
static SV * |
840 |
pcg |
1.56 |
coro_deq (pTHX_ int min_prio) |
841 |
root |
1.22 |
{ |
842 |
|
|
int prio = PRIO_MAX - PRIO_MIN; |
843 |
|
|
|
844 |
|
|
min_prio -= PRIO_MIN; |
845 |
|
|
if (min_prio < 0) |
846 |
|
|
min_prio = 0; |
847 |
|
|
|
848 |
|
|
for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
849 |
root |
1.83 |
if (AvFILLp (coro_ready [prio]) >= 0) |
850 |
root |
1.25 |
{ |
851 |
|
|
coro_nready--; |
852 |
root |
1.83 |
return av_shift (coro_ready [prio]); |
853 |
root |
1.25 |
} |
854 |
root |
1.22 |
|
855 |
|
|
return 0; |
856 |
|
|
} |
857 |
|
|
|
858 |
root |
1.23 |
static void |
859 |
|
|
api_ready (SV *coro) |
860 |
|
|
{ |
861 |
pcg |
1.56 |
dTHX; |
862 |
|
|
|
863 |
root |
1.39 |
if (SvROK (coro)) |
864 |
|
|
coro = SvRV (coro); |
865 |
|
|
|
866 |
pcg |
1.55 |
LOCK; |
867 |
pcg |
1.56 |
coro_enq (aTHX_ SvREFCNT_inc (coro)); |
868 |
pcg |
1.55 |
UNLOCK; |
869 |
root |
1.23 |
} |
870 |
|
|
|
871 |
|
|
static void |
872 |
root |
1.39 |
api_schedule (void) |
873 |
root |
1.23 |
{ |
874 |
pcg |
1.56 |
dTHX; |
875 |
|
|
|
876 |
root |
1.23 |
SV *prev, *next; |
877 |
root |
1.88 |
SV *current = GvSV (coro_current); |
878 |
|
|
|
879 |
|
|
for (;;) |
880 |
|
|
{ |
881 |
|
|
LOCK; |
882 |
|
|
|
883 |
|
|
next = coro_deq (aTHX_ PRIO_MIN); |
884 |
|
|
|
885 |
|
|
if (next) |
886 |
|
|
break; |
887 |
root |
1.23 |
|
888 |
root |
1.88 |
UNLOCK; |
889 |
|
|
|
890 |
|
|
{ |
891 |
|
|
dSP; |
892 |
|
|
|
893 |
|
|
ENTER; |
894 |
|
|
SAVETMPS; |
895 |
pcg |
1.55 |
|
896 |
root |
1.88 |
PUSHMARK (SP); |
897 |
|
|
PUTBACK; |
898 |
|
|
call_sv (GvSV (coro_idle), G_DISCARD); |
899 |
root |
1.23 |
|
900 |
root |
1.88 |
FREETMPS; |
901 |
|
|
LEAVE; |
902 |
|
|
} |
903 |
|
|
} |
904 |
|
|
|
905 |
|
|
prev = SvRV (current); |
906 |
|
|
SvRV (current) = next; |
907 |
root |
1.23 |
|
908 |
root |
1.40 |
/* free this only after the transfer */ |
909 |
root |
1.39 |
coro_mortal = prev; |
910 |
root |
1.23 |
|
911 |
pcg |
1.55 |
UNLOCK; |
912 |
|
|
|
913 |
root |
1.89 |
coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), TRANSFER_SAVE_ALL); |
914 |
root |
1.39 |
} |
915 |
|
|
|
916 |
root |
1.89 |
static int coro_cede_self; |
917 |
|
|
|
918 |
root |
1.39 |
static void |
919 |
|
|
api_cede (void) |
920 |
|
|
{ |
921 |
pcg |
1.56 |
dTHX; |
922 |
root |
1.89 |
SV *current = SvREFCNT_inc (SvRV (GvSV (coro_current))); |
923 |
pcg |
1.56 |
|
924 |
pcg |
1.55 |
LOCK; |
925 |
root |
1.89 |
|
926 |
|
|
if (coro_cede_self) |
927 |
|
|
{ |
928 |
|
|
AV *runqueue = coro_ready [PRIO_MAX - PRIO_MIN]; |
929 |
|
|
av_unshift (runqueue, 1); |
930 |
|
|
av_store (runqueue, 0, current); |
931 |
|
|
coro_nready++; |
932 |
|
|
coro_cede_self = 0; |
933 |
|
|
} |
934 |
|
|
else |
935 |
|
|
coro_enq (aTHX_ current); |
936 |
|
|
|
937 |
pcg |
1.55 |
UNLOCK; |
938 |
root |
1.39 |
|
939 |
|
|
api_schedule (); |
940 |
root |
1.23 |
} |
941 |
|
|
|
942 |
root |
1.3 |
MODULE = Coro::State PACKAGE = Coro::State |
943 |
root |
1.1 |
|
944 |
root |
1.87 |
PROTOTYPES: DISABLE |
945 |
root |
1.1 |
|
946 |
root |
1.3 |
BOOT: |
947 |
root |
1.88 |
{ |
948 |
pcg |
1.55 |
#ifdef USE_ITHREADS |
949 |
|
|
MUTEX_INIT (&coro_mutex); |
950 |
|
|
#endif |
951 |
root |
1.78 |
BOOT_PAGESIZE; |
952 |
pcg |
1.55 |
|
953 |
root |
1.14 |
coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
954 |
root |
1.7 |
|
955 |
root |
1.13 |
newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
956 |
|
|
newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
957 |
|
|
newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
958 |
root |
1.7 |
|
959 |
root |
1.12 |
main_mainstack = PL_mainstack; |
960 |
root |
1.23 |
|
961 |
root |
1.26 |
coroapi.ver = CORO_API_VERSION; |
962 |
|
|
coroapi.transfer = api_transfer; |
963 |
root |
1.87 |
|
964 |
root |
1.89 |
Newz (0, main_stack, 1, coro_stack); |
965 |
|
|
main_stack->idle_sp = (void *)-1; |
966 |
|
|
|
967 |
root |
1.87 |
assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
968 |
root |
1.9 |
} |
969 |
root |
1.3 |
|
970 |
root |
1.87 |
SV * |
971 |
root |
1.86 |
new (char *klass, ...) |
972 |
root |
1.1 |
CODE: |
973 |
root |
1.86 |
{ |
974 |
root |
1.87 |
struct coro *coro; |
975 |
|
|
HV *hv; |
976 |
root |
1.86 |
int i; |
977 |
|
|
|
978 |
pcg |
1.47 |
Newz (0, coro, 1, struct coro); |
979 |
root |
1.86 |
coro->args = newAV (); |
980 |
|
|
|
981 |
root |
1.89 |
hv = newHV (); |
982 |
|
|
sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
983 |
|
|
RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
984 |
|
|
|
985 |
|
|
av_push (coro->args, newSVsv (RETVAL)); |
986 |
root |
1.86 |
for (i = 1; i < items; i++) |
987 |
|
|
av_push (coro->args, newSVsv (ST (i))); |
988 |
|
|
|
989 |
root |
1.89 |
coro->stack = main_stack; |
990 |
root |
1.59 |
/*coro->mainstack = 0; *//*actual work is done inside transfer */ |
991 |
|
|
/*coro->stack = 0;*/ |
992 |
root |
1.86 |
} |
993 |
root |
1.1 |
OUTPUT: |
994 |
|
|
RETVAL |
995 |
|
|
|
996 |
|
|
void |
997 |
root |
1.89 |
transfer (prev, next, flags) |
998 |
root |
1.39 |
SV *prev |
999 |
|
|
SV *next |
1000 |
|
|
int flags |
1001 |
root |
1.1 |
CODE: |
1002 |
root |
1.20 |
PUTBACK; |
1003 |
root |
1.84 |
coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
1004 |
root |
1.20 |
SPAGAIN; |
1005 |
root |
1.1 |
|
1006 |
root |
1.87 |
int |
1007 |
|
|
prio (Coro::State coro, int newprio = 0) |
1008 |
|
|
ALIAS: |
1009 |
|
|
nice = 1 |
1010 |
root |
1.1 |
CODE: |
1011 |
root |
1.87 |
{ |
1012 |
|
|
RETVAL = coro->prio; |
1013 |
root |
1.1 |
|
1014 |
root |
1.87 |
if (items > 1) |
1015 |
root |
1.1 |
{ |
1016 |
root |
1.87 |
if (ix) |
1017 |
|
|
newprio += coro->prio; |
1018 |
root |
1.1 |
|
1019 |
root |
1.87 |
if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1020 |
|
|
if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1021 |
root |
1.1 |
|
1022 |
root |
1.87 |
coro->prio = newprio; |
1023 |
|
|
} |
1024 |
|
|
} |
1025 |
root |
1.1 |
|
1026 |
root |
1.87 |
void |
1027 |
root |
1.89 |
_clear_idle_sp (Coro::State self) |
1028 |
|
|
CODE: |
1029 |
|
|
self->stack->idle_sp = 0; |
1030 |
|
|
|
1031 |
|
|
void |
1032 |
root |
1.87 |
_clone_state_from (SV *dst, SV *src) |
1033 |
|
|
CODE: |
1034 |
|
|
{ |
1035 |
|
|
struct coro *coro_src = SvSTATE (src); |
1036 |
root |
1.13 |
|
1037 |
root |
1.87 |
sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
1038 |
root |
1.13 |
|
1039 |
root |
1.87 |
++coro_src->refcnt; |
1040 |
|
|
sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
1041 |
|
|
} |
1042 |
root |
1.12 |
|
1043 |
root |
1.7 |
void |
1044 |
root |
1.87 |
_exit (code) |
1045 |
root |
1.20 |
int code |
1046 |
|
|
PROTOTYPE: $ |
1047 |
|
|
CODE: |
1048 |
|
|
_exit (code); |
1049 |
root |
1.1 |
|
1050 |
root |
1.8 |
MODULE = Coro::State PACKAGE = Coro::Cont |
1051 |
|
|
|
1052 |
|
|
void |
1053 |
root |
1.87 |
yield (...) |
1054 |
root |
1.8 |
PROTOTYPE: @ |
1055 |
|
|
CODE: |
1056 |
root |
1.88 |
{ |
1057 |
root |
1.64 |
SV *yieldstack; |
1058 |
root |
1.8 |
SV *sv; |
1059 |
|
|
AV *defav = GvAV (PL_defgv); |
1060 |
|
|
struct coro *prev, *next; |
1061 |
|
|
|
1062 |
root |
1.64 |
yieldstack = *hv_fetch ( |
1063 |
|
|
(HV *)SvRV (GvSV (coro_current)), |
1064 |
|
|
"yieldstack", sizeof ("yieldstack") - 1, |
1065 |
|
|
0 |
1066 |
|
|
); |
1067 |
root |
1.8 |
|
1068 |
root |
1.11 |
/* set up @_ -- ugly */ |
1069 |
root |
1.8 |
av_clear (defav); |
1070 |
|
|
av_fill (defav, items - 1); |
1071 |
|
|
while (items--) |
1072 |
|
|
av_store (defav, items, SvREFCNT_inc (ST(items))); |
1073 |
|
|
|
1074 |
root |
1.64 |
sv = av_pop ((AV *)SvRV (yieldstack)); |
1075 |
root |
1.88 |
prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
1076 |
|
|
next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
1077 |
root |
1.8 |
SvREFCNT_dec (sv); |
1078 |
root |
1.13 |
|
1079 |
root |
1.84 |
coro_state_transfer (aTHX_ prev, next, 0); |
1080 |
root |
1.88 |
} |
1081 |
root |
1.1 |
|
1082 |
root |
1.21 |
MODULE = Coro::State PACKAGE = Coro |
1083 |
|
|
|
1084 |
|
|
BOOT: |
1085 |
|
|
{ |
1086 |
root |
1.22 |
int i; |
1087 |
|
|
|
1088 |
root |
1.88 |
coro_stash = gv_stashpv ("Coro", TRUE); |
1089 |
|
|
|
1090 |
|
|
newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1091 |
|
|
newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1092 |
|
|
newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1093 |
|
|
newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1094 |
|
|
newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1095 |
|
|
newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1096 |
root |
1.22 |
|
1097 |
root |
1.21 |
coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
1098 |
|
|
coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
1099 |
root |
1.22 |
|
1100 |
|
|
for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1101 |
|
|
coro_ready[i] = newAV (); |
1102 |
root |
1.26 |
|
1103 |
|
|
{ |
1104 |
|
|
SV *sv = perl_get_sv("Coro::API", 1); |
1105 |
|
|
|
1106 |
|
|
coroapi.schedule = api_schedule; |
1107 |
root |
1.39 |
coroapi.cede = api_cede; |
1108 |
root |
1.26 |
coroapi.ready = api_ready; |
1109 |
|
|
coroapi.nready = &coro_nready; |
1110 |
|
|
coroapi.current = coro_current; |
1111 |
|
|
|
1112 |
|
|
GCoroAPI = &coroapi; |
1113 |
root |
1.81 |
sv_setiv (sv, (IV)&coroapi); |
1114 |
|
|
SvREADONLY_on (sv); |
1115 |
root |
1.26 |
} |
1116 |
root |
1.21 |
} |
1117 |
|
|
|
1118 |
|
|
void |
1119 |
root |
1.89 |
ready (SV *self) |
1120 |
root |
1.35 |
PROTOTYPE: $ |
1121 |
root |
1.21 |
CODE: |
1122 |
root |
1.23 |
api_ready (self); |
1123 |
pcg |
1.50 |
|
1124 |
root |
1.25 |
int |
1125 |
root |
1.87 |
nready (...) |
1126 |
root |
1.25 |
PROTOTYPE: |
1127 |
|
|
CODE: |
1128 |
|
|
RETVAL = coro_nready; |
1129 |
|
|
OUTPUT: |
1130 |
|
|
RETVAL |
1131 |
|
|
|
1132 |
root |
1.21 |
void |
1133 |
root |
1.87 |
schedule (...) |
1134 |
root |
1.25 |
PROTOTYPE: |
1135 |
root |
1.21 |
CODE: |
1136 |
root |
1.39 |
api_schedule (); |
1137 |
|
|
|
1138 |
|
|
void |
1139 |
root |
1.89 |
_set_cede_self () |
1140 |
|
|
CODE: |
1141 |
|
|
coro_cede_self = 1; |
1142 |
|
|
|
1143 |
|
|
void |
1144 |
root |
1.87 |
cede (...) |
1145 |
root |
1.39 |
PROTOTYPE: |
1146 |
|
|
CODE: |
1147 |
|
|
api_cede (); |
1148 |
root |
1.21 |
|
1149 |
root |
1.89 |
MODULE = Coro::State PACKAGE = Coro::AIO |
1150 |
|
|
|
1151 |
root |
1.70 |
SV * |
1152 |
root |
1.89 |
_get_state () |
1153 |
root |
1.70 |
CODE: |
1154 |
|
|
{ |
1155 |
|
|
struct { |
1156 |
|
|
int errorno; |
1157 |
|
|
int laststype; |
1158 |
|
|
int laststatval; |
1159 |
|
|
Stat_t statcache; |
1160 |
|
|
} data; |
1161 |
|
|
|
1162 |
|
|
data.errorno = errno; |
1163 |
|
|
data.laststype = PL_laststype; |
1164 |
|
|
data.laststatval = PL_laststatval; |
1165 |
|
|
data.statcache = PL_statcache; |
1166 |
|
|
|
1167 |
|
|
RETVAL = newSVpvn ((char *)&data, sizeof data); |
1168 |
|
|
} |
1169 |
|
|
OUTPUT: |
1170 |
|
|
RETVAL |
1171 |
|
|
|
1172 |
|
|
void |
1173 |
root |
1.89 |
_set_state (char *data_) |
1174 |
root |
1.70 |
PROTOTYPE: $ |
1175 |
|
|
CODE: |
1176 |
|
|
{ |
1177 |
|
|
struct { |
1178 |
|
|
int errorno; |
1179 |
|
|
int laststype; |
1180 |
|
|
int laststatval; |
1181 |
|
|
Stat_t statcache; |
1182 |
|
|
} *data = (void *)data_; |
1183 |
|
|
|
1184 |
|
|
errno = data->errorno; |
1185 |
|
|
PL_laststype = data->laststype; |
1186 |
|
|
PL_laststatval = data->laststatval; |
1187 |
|
|
PL_statcache = data->statcache; |
1188 |
|
|
} |