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1 | #include "libcoro/coro.c" |
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2 | |
1 | #define PERL_NO_GET_CONTEXT |
3 | #define PERL_NO_GET_CONTEXT |
2 | |
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3 | #include "libcoro/coro.c" |
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4 | |
4 | |
5 | #include "EXTERN.h" |
5 | #include "EXTERN.h" |
6 | #include "perl.h" |
6 | #include "perl.h" |
7 | #include "XSUB.h" |
7 | #include "XSUB.h" |
8 | |
8 | |
9 | #include "patchlevel.h" |
9 | #include "patchlevel.h" |
10 | |
10 | |
11 | #if PERL_VERSION < 6 |
11 | #include <stdio.h> |
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12 | #include <errno.h> |
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13 | #include <assert.h> |
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14 | |
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15 | #ifdef HAVE_MMAP |
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16 | # include <unistd.h> |
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17 | # include <sys/mman.h> |
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18 | # ifndef MAP_ANONYMOUS |
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19 | # ifdef MAP_ANON |
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20 | # define MAP_ANONYMOUS MAP_ANON |
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21 | # else |
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22 | # undef HAVE_MMAP |
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23 | # endif |
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24 | # endif |
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25 | # include <limits.h> |
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26 | # ifndef PAGESIZE |
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27 | # define PAGESIZE pagesize |
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28 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
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29 | static long pagesize; |
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30 | # else |
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31 | # define BOOT_PAGESIZE (void)0 |
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32 | # endif |
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33 | #else |
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34 | # define PAGESIZE 0 |
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35 | # define BOOT_PAGESIZE (void)0 |
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36 | #endif |
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37 | |
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38 | #if CORO_USE_VALGRIND |
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39 | # include <valgrind/valgrind.h> |
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40 | # define REGISTER_STACK(cctx,start,end) (cctx)->valgrind_id = VALGRIND_STACK_REGISTER ((start), (end)) |
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41 | #else |
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42 | # define REGISTER_STACK(cctx,start,end) |
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43 | #endif |
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44 | |
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45 | /* the maximum number of idle cctx that will be pooled */ |
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46 | #define MAX_IDLE_CCTX 8 |
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47 | |
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48 | #define PERL_VERSION_ATLEAST(a,b,c) \ |
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49 | (PERL_REVISION > (a) \ |
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50 | || (PERL_REVISION == (a) \ |
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51 | && (PERL_VERSION > (b) \ |
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52 | || (PERL_VERSION == (b) && PERLSUBVERSION >= (c))))) |
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53 | |
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54 | #if !PERL_VERSION_ATLEAST (5,6,0) |
12 | # ifndef PL_ppaddr |
55 | # ifndef PL_ppaddr |
13 | # define PL_ppaddr ppaddr |
56 | # define PL_ppaddr ppaddr |
14 | # endif |
57 | # endif |
15 | # ifndef call_sv |
58 | # ifndef call_sv |
16 | # define call_sv perl_call_sv |
59 | # define call_sv perl_call_sv |
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27 | # ifndef IS_PADCONST |
70 | # ifndef IS_PADCONST |
28 | # define IS_PADCONST(v) 0 |
71 | # define IS_PADCONST(v) 0 |
29 | # endif |
72 | # endif |
30 | #endif |
73 | #endif |
31 | |
74 | |
32 | #include <stdio.h> |
75 | /* 5.8.7 */ |
33 | #include <errno.h> |
76 | #ifndef SvRV_set |
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77 | # define SvRV_set(s,v) SvRV(s) = (v) |
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78 | #endif |
34 | |
79 | |
35 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
80 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
36 | # undef STACKGUARD |
81 | # undef CORO_STACKGUARD |
37 | #endif |
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38 | |
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39 | #ifndef STACKGUARD |
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40 | # define STACKGUARD 0 |
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41 | #endif |
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42 | |
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43 | #ifdef HAVE_MMAP |
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44 | # include <unistd.h> |
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45 | # include <sys/mman.h> |
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46 | # ifndef MAP_ANONYMOUS |
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47 | # ifdef MAP_ANON |
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48 | # define MAP_ANONYMOUS MAP_ANON |
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49 | # else |
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50 | # undef HAVE_MMAP |
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51 | # endif |
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52 | # endif |
82 | #endif |
53 | # include <limits.h> |
83 | |
54 | # ifndef PAGESIZE |
84 | #ifndef CORO_STACKGUARD |
55 | # define PAGESIZE pagesize |
85 | # define CORO_STACKGUARD 0 |
56 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
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57 | static long pagesize; |
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58 | # else |
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59 | # define BOOT_PAGESIZE |
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60 | # endif |
86 | #endif |
61 | #endif |
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62 | |
87 | |
63 | /* The next macro should declare a variable stacklevel that contains and approximation |
88 | /* prefer perl internal functions over our own? */ |
64 | * to the current C stack pointer. Its property is that it changes with each call |
89 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
65 | * and should be unique. */ |
90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
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91 | #endif |
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92 | |
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93 | /* The next macros try to return the current stack pointer, in an as |
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94 | * portable way as possible. */ |
66 | #define dSTACKLEVEL int stacklevel |
95 | #define dSTACKLEVEL volatile char stacklevel |
67 | #define STACKLEVEL ((void *)&stacklevel) |
96 | #define STACKLEVEL ((void *)&stacklevel) |
68 | |
97 | |
69 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
98 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
70 | |
99 | |
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100 | #if __GNUC__ >= 3 |
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101 | # define attribute(x) __attribute__(x) |
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102 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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103 | #else |
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104 | # define attribute(x) |
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105 | # define BARRIER |
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106 | #endif |
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107 | |
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108 | #define NOINLINE attribute ((noinline)) |
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109 | |
71 | #include "CoroAPI.h" |
110 | #include "CoroAPI.h" |
72 | |
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73 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
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74 | |
111 | |
75 | #ifdef USE_ITHREADS |
112 | #ifdef USE_ITHREADS |
76 | static perl_mutex coro_mutex; |
113 | static perl_mutex coro_mutex; |
77 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
114 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
78 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
115 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
79 | #else |
116 | #else |
80 | # define LOCK (void)0 |
117 | # define LOCK (void)0 |
81 | # define UNLOCK (void)0 |
118 | # define UNLOCK (void)0 |
82 | #endif |
119 | #endif |
83 | |
120 | |
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121 | /* helper storage struct for Coro::AIO */ |
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122 | struct io_state |
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123 | { |
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124 | int errorno; |
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125 | I32 laststype; |
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126 | int laststatval; |
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127 | Stat_t statcache; |
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128 | }; |
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129 | |
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130 | static size_t coro_stacksize = CORO_STACKSIZE; |
84 | static struct CoroAPI coroapi; |
131 | static struct CoroAPI coroapi; |
85 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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133 | static JMPENV *main_top_env; |
86 | static HV *coro_state_stash, *coro_stash; |
134 | static HV *coro_state_stash, *coro_stash; |
87 | static SV *coro_mortal; /* will be freed after next transfer */ |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
88 | |
136 | |
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137 | /* async_pool helper stuff */ |
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138 | static SV *sv_pool_rss; |
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139 | static SV *sv_pool_size; |
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140 | static AV *av_async_pool; |
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141 | |
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142 | static struct coro_cctx *cctx_first; |
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143 | static int cctx_count, cctx_idle; |
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144 | |
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145 | enum { |
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146 | CC_MAPPED = 0x01, |
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147 | CC_TRACE = 0x02, |
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148 | CC_NOREUSE = 0x04, /* throw this away after tracing */ |
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149 | }; |
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150 | |
89 | /* this is a structure representing a c-level coroutine */ |
151 | /* this is a structure representing a c-level coroutine */ |
90 | typedef struct coro_stack { |
152 | typedef struct coro_cctx { |
91 | struct coro_stack *next; |
153 | struct coro_cctx *next; |
92 | |
154 | |
93 | /* the stack */ |
155 | /* the stack */ |
94 | void *sptr; |
156 | void *sptr; |
95 | long ssize; /* positive == mmap, otherwise malloc */ |
157 | size_t ssize; |
96 | |
158 | |
97 | /* cpu state */ |
159 | /* cpu state */ |
98 | void *idle_sp; /* original stacklevel when coroutine was created */ |
160 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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161 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
99 | JMPENV *top_env; |
162 | JMPENV *top_env; |
100 | coro_context cctx; |
163 | coro_context cctx; |
101 | } coro_stack; |
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102 | |
164 | |
103 | /* the (fake) coro_stack representing the main program */ |
165 | #if CORO_USE_VALGRIND |
104 | static coro_stack *main_stack; |
166 | int valgrind_id; |
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167 | #endif |
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168 | unsigned char flags; |
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169 | } coro_cctx; |
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170 | |
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171 | enum { |
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172 | CF_RUNNING = 0x0001, /* coroutine is running */ |
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173 | CF_READY = 0x0002, /* coroutine is ready */ |
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174 | CF_NEW = 0x0004, /* has never been switched to */ |
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175 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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176 | }; |
105 | |
177 | |
106 | /* this is a structure representing a perl-level coroutine */ |
178 | /* this is a structure representing a perl-level coroutine */ |
107 | struct coro { |
179 | struct coro { |
108 | /* the c coroutine allocated to this perl coroutine, if any */ |
180 | /* the c coroutine allocated to this perl coroutine, if any */ |
109 | coro_stack *stack; |
181 | coro_cctx *cctx; |
110 | |
182 | |
111 | /* data associated with this coroutine (initial args) */ |
183 | /* data associated with this coroutine (initial args) */ |
112 | AV *args; |
184 | AV *args; |
113 | int refcnt; |
185 | int refcnt; |
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186 | int save; /* CORO_SAVE flags */ |
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187 | int flags; /* CF_ flags */ |
114 | |
188 | |
115 | /* optionally saved, might be zero */ |
189 | /* optionally saved, might be zero */ |
116 | AV *defav; |
190 | AV *defav; /* @_ */ |
117 | SV *defsv; |
191 | SV *defsv; /* $_ */ |
118 | SV *errsv; |
192 | SV *errsv; /* $@ */ |
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193 | GV *deffh; /* default filehandle */ |
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194 | SV *irssv; /* $/ */ |
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195 | SV *irssv_sv; /* real $/ cache */ |
119 | |
196 | |
120 | /* saved global state not related to stacks */ |
197 | #define VAR(name,type) type name; |
121 | U8 dowarn; |
198 | # include "state.h" |
122 | I32 in_eval; |
199 | #undef VAR |
123 | |
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124 | /* the stacks and related info (callchain etc..) */ |
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125 | PERL_SI *curstackinfo; |
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126 | AV *curstack; |
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127 | AV *mainstack; |
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128 | SV **stack_sp; |
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129 | OP *op; |
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130 | SV **curpad; |
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131 | AV *comppad; |
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132 | CV *compcv; |
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133 | SV **stack_base; |
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134 | SV **stack_max; |
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135 | SV **tmps_stack; |
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136 | I32 tmps_floor; |
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137 | I32 tmps_ix; |
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138 | I32 tmps_max; |
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139 | I32 *markstack; |
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140 | I32 *markstack_ptr; |
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141 | I32 *markstack_max; |
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142 | I32 *scopestack; |
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143 | I32 scopestack_ix; |
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144 | I32 scopestack_max; |
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145 | ANY *savestack; |
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146 | I32 savestack_ix; |
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147 | I32 savestack_max; |
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148 | OP **retstack; |
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149 | I32 retstack_ix; |
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150 | I32 retstack_max; |
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151 | PMOP *curpm; |
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152 | COP *curcop; |
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153 | |
200 | |
154 | /* coro process data */ |
201 | /* coro process data */ |
155 | int prio; |
202 | int prio; |
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203 | |
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204 | /* linked list */ |
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205 | struct coro *next, *prev; |
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206 | HV *hv; /* the perl hash associated with this coro, if any */ |
156 | }; |
207 | }; |
157 | |
208 | |
158 | typedef struct coro *Coro__State; |
209 | typedef struct coro *Coro__State; |
159 | typedef struct coro *Coro__State_or_hashref; |
210 | typedef struct coro *Coro__State_or_hashref; |
160 | |
211 | |
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212 | /** Coro ********************************************************************/ |
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213 | |
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214 | #define PRIO_MAX 3 |
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215 | #define PRIO_HIGH 1 |
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216 | #define PRIO_NORMAL 0 |
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217 | #define PRIO_LOW -1 |
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218 | #define PRIO_IDLE -3 |
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219 | #define PRIO_MIN -4 |
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220 | |
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221 | /* for Coro.pm */ |
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222 | static SV *coro_current; |
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223 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
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224 | static int coro_nready; |
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225 | static struct coro *coro_first; |
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226 | |
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227 | /** lowlevel stuff **********************************************************/ |
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228 | |
161 | static AV * |
229 | static AV * |
162 | coro_clone_padlist (pTHX_ CV *cv) |
230 | coro_clone_padlist (pTHX_ CV *cv) |
163 | { |
231 | { |
164 | AV *padlist = CvPADLIST (cv); |
232 | AV *padlist = CvPADLIST (cv); |
165 | AV *newpadlist, *newpad; |
233 | AV *newpadlist, *newpad; |
166 | |
234 | |
167 | newpadlist = newAV (); |
235 | newpadlist = newAV (); |
168 | AvREAL_off (newpadlist); |
236 | AvREAL_off (newpadlist); |
169 | #if PERL_VERSION < 9 |
237 | #if PERL_VERSION_ATLEAST (5,9,0) |
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238 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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239 | #else |
170 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
240 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
171 | #else |
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172 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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173 | #endif |
241 | #endif |
174 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
242 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
175 | --AvFILLp (padlist); |
243 | --AvFILLp (padlist); |
176 | |
244 | |
177 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
245 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
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221 | |
289 | |
222 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
290 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
223 | |
291 | |
224 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
292 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
225 | |
293 | |
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294 | #define CORO_MAGIC(cv) \ |
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295 | SvMAGIC (cv) \ |
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296 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
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297 | ? SvMAGIC (cv) \ |
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298 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
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299 | : 0 |
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300 | |
226 | /* the next two functions merely cache the padlists */ |
301 | /* the next two functions merely cache the padlists */ |
227 | static void |
302 | static void |
228 | get_padlist (pTHX_ CV *cv) |
303 | get_padlist (pTHX_ CV *cv) |
229 | { |
304 | { |
230 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
305 | MAGIC *mg = CORO_MAGIC (cv); |
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306 | AV *av; |
231 | |
307 | |
232 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
308 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
233 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
309 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
234 | else |
310 | else |
235 | { |
311 | { |
236 | #if 0 |
312 | #if CORO_PREFER_PERL_FUNCTIONS |
237 | /* this should work - but it doesn't :( */ |
313 | /* this is probably cleaner, but also slower? */ |
238 | CV *cp = Perl_cv_clone (aTHX_ cv); |
314 | CV *cp = Perl_cv_clone (cv); |
239 | CvPADLIST (cv) = CvPADLIST (cp); |
315 | CvPADLIST (cv) = CvPADLIST (cp); |
240 | CvPADLIST (cp) = 0; |
316 | CvPADLIST (cp) = 0; |
241 | SvREFCNT_dec (cp); |
317 | SvREFCNT_dec (cp); |
242 | #else |
318 | #else |
243 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
319 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
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246 | } |
322 | } |
247 | |
323 | |
248 | static void |
324 | static void |
249 | put_padlist (pTHX_ CV *cv) |
325 | put_padlist (pTHX_ CV *cv) |
250 | { |
326 | { |
251 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
327 | MAGIC *mg = CORO_MAGIC (cv); |
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328 | AV *av; |
252 | |
329 | |
253 | if (!mg) |
330 | if (!mg) |
254 | { |
331 | { |
255 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
332 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
256 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
333 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
257 | mg->mg_virtual = &vtbl_coro; |
334 | mg->mg_virtual = &vtbl_coro; |
258 | mg->mg_obj = (SV *)newAV (); |
335 | mg->mg_obj = (SV *)newAV (); |
259 | } |
336 | } |
260 | |
337 | |
261 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
338 | av = (AV *)mg->mg_obj; |
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339 | |
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340 | if (AvFILLp (av) >= AvMAX (av)) |
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341 | av_extend (av, AvMAX (av) + 1); |
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342 | |
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343 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
262 | } |
344 | } |
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345 | |
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346 | /** load & save, init *******************************************************/ |
263 | |
347 | |
264 | #define SB do { |
348 | #define SB do { |
265 | #define SE } while (0) |
349 | #define SE } while (0) |
266 | |
350 | |
267 | #define LOAD(state) load_state(aTHX_ (state)); |
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268 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
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269 | |
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270 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
351 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec (sv); (sv) = (val); (val) = 0; SE |
271 | |
352 | |
272 | static void |
353 | static void |
273 | load_state(pTHX_ Coro__State c) |
354 | load_perl (pTHX_ Coro__State c) |
274 | { |
355 | { |
275 | PL_dowarn = c->dowarn; |
356 | #define VAR(name,type) PL_ ## name = c->name; |
276 | PL_in_eval = c->in_eval; |
357 | # include "state.h" |
277 | |
358 | #undef VAR |
278 | PL_curstackinfo = c->curstackinfo; |
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279 | PL_curstack = c->curstack; |
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280 | PL_mainstack = c->mainstack; |
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281 | PL_stack_sp = c->stack_sp; |
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282 | PL_op = c->op; |
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283 | PL_curpad = c->curpad; |
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284 | PL_comppad = c->comppad; |
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285 | PL_compcv = c->compcv; |
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286 | PL_stack_base = c->stack_base; |
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287 | PL_stack_max = c->stack_max; |
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288 | PL_tmps_stack = c->tmps_stack; |
|
|
289 | PL_tmps_floor = c->tmps_floor; |
|
|
290 | PL_tmps_ix = c->tmps_ix; |
|
|
291 | PL_tmps_max = c->tmps_max; |
|
|
292 | PL_markstack = c->markstack; |
|
|
293 | PL_markstack_ptr = c->markstack_ptr; |
|
|
294 | PL_markstack_max = c->markstack_max; |
|
|
295 | PL_scopestack = c->scopestack; |
|
|
296 | PL_scopestack_ix = c->scopestack_ix; |
|
|
297 | PL_scopestack_max = c->scopestack_max; |
|
|
298 | PL_savestack = c->savestack; |
|
|
299 | PL_savestack_ix = c->savestack_ix; |
|
|
300 | PL_savestack_max = c->savestack_max; |
|
|
301 | #if PERL_VERSION < 9 |
|
|
302 | PL_retstack = c->retstack; |
|
|
303 | PL_retstack_ix = c->retstack_ix; |
|
|
304 | PL_retstack_max = c->retstack_max; |
|
|
305 | #endif |
|
|
306 | PL_curpm = c->curpm; |
|
|
307 | PL_curcop = c->curcop; |
|
|
308 | |
359 | |
309 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
360 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
310 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
361 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
311 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
362 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
363 | if (c->deffh) REPLACE_SV (PL_defoutgv , c->deffh); |
|
|
364 | |
|
|
365 | if (c->irssv) |
|
|
366 | { |
|
|
367 | if (c->irssv == PL_rs || sv_eq (PL_rs, c->irssv)) |
|
|
368 | { |
|
|
369 | SvREFCNT_dec (c->irssv); |
|
|
370 | c->irssv = 0; |
|
|
371 | } |
|
|
372 | else |
|
|
373 | { |
|
|
374 | REPLACE_SV (PL_rs, c->irssv); |
|
|
375 | if (!c->irssv_sv) c->irssv_sv = get_sv ("/", 0); |
|
|
376 | sv_setsv (c->irssv_sv, PL_rs); |
|
|
377 | } |
|
|
378 | } |
312 | |
379 | |
313 | { |
380 | { |
314 | dSP; |
381 | dSP; |
315 | CV *cv; |
382 | CV *cv; |
316 | |
383 | |
317 | /* now do the ugly restore mess */ |
384 | /* now do the ugly restore mess */ |
318 | while ((cv = (CV *)POPs)) |
385 | while ((cv = (CV *)POPs)) |
319 | { |
386 | { |
320 | AV *padlist = (AV *)POPs; |
|
|
321 | |
|
|
322 | if (padlist) |
|
|
323 | { |
|
|
324 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
387 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
325 | CvPADLIST(cv) = padlist; |
388 | CvDEPTH (cv) = PTR2IV (POPs); |
326 | } |
389 | CvPADLIST (cv) = (AV *)POPs; |
327 | |
|
|
328 | ++CvDEPTH(cv); |
|
|
329 | } |
390 | } |
330 | |
391 | |
331 | PUTBACK; |
392 | PUTBACK; |
332 | } |
393 | } |
333 | } |
394 | } |
334 | |
395 | |
335 | static void |
396 | static void |
336 | save_state(pTHX_ Coro__State c, int flags) |
397 | save_perl (pTHX_ Coro__State c) |
337 | { |
398 | { |
338 | { |
399 | { |
339 | dSP; |
400 | dSP; |
340 | I32 cxix = cxstack_ix; |
401 | I32 cxix = cxstack_ix; |
341 | PERL_CONTEXT *ccstk = cxstack; |
402 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
344 | /* |
405 | /* |
345 | * the worst thing you can imagine happens first - we have to save |
406 | * the worst thing you can imagine happens first - we have to save |
346 | * (and reinitialize) all cv's in the whole callchain :( |
407 | * (and reinitialize) all cv's in the whole callchain :( |
347 | */ |
408 | */ |
348 | |
409 | |
349 | PUSHs (Nullsv); |
410 | XPUSHs (Nullsv); |
350 | /* this loop was inspired by pp_caller */ |
411 | /* this loop was inspired by pp_caller */ |
351 | for (;;) |
412 | for (;;) |
352 | { |
413 | { |
353 | while (cxix >= 0) |
414 | while (cxix >= 0) |
354 | { |
415 | { |
355 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
416 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
356 | |
417 | |
357 | if (CxTYPE(cx) == CXt_SUB) |
418 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
358 | { |
419 | { |
359 | CV *cv = cx->blk_sub.cv; |
420 | CV *cv = cx->blk_sub.cv; |
|
|
421 | |
360 | if (CvDEPTH(cv)) |
422 | if (CvDEPTH (cv)) |
361 | { |
423 | { |
362 | EXTEND (SP, CvDEPTH(cv)*2); |
424 | EXTEND (SP, 3); |
363 | |
|
|
364 | while (--CvDEPTH(cv)) |
|
|
365 | { |
|
|
366 | /* this tells the restore code to increment CvDEPTH */ |
|
|
367 | PUSHs (Nullsv); |
|
|
368 | PUSHs ((SV *)cv); |
|
|
369 | } |
|
|
370 | |
|
|
371 | PUSHs ((SV *)CvPADLIST(cv)); |
425 | PUSHs ((SV *)CvPADLIST (cv)); |
|
|
426 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
372 | PUSHs ((SV *)cv); |
427 | PUSHs ((SV *)cv); |
373 | |
428 | |
|
|
429 | CvDEPTH (cv) = 0; |
374 | get_padlist (aTHX_ cv); |
430 | get_padlist (aTHX_ cv); |
375 | } |
431 | } |
376 | } |
432 | } |
377 | #ifdef CXt_FORMAT |
|
|
378 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
379 | { |
|
|
380 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
381 | /* my bold guess is as a simple, plain sub... */ |
|
|
382 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
383 | } |
|
|
384 | #endif |
|
|
385 | } |
433 | } |
386 | |
434 | |
387 | if (top_si->si_type == PERLSI_MAIN) |
435 | if (top_si->si_type == PERLSI_MAIN) |
388 | break; |
436 | break; |
389 | |
437 | |
390 | top_si = top_si->si_prev; |
438 | top_si = top_si->si_prev; |
391 | ccstk = top_si->si_cxstack; |
439 | ccstk = top_si->si_cxstack; |
392 | cxix = top_si->si_cxix; |
440 | cxix = top_si->si_cxix; |
393 | } |
441 | } |
394 | |
442 | |
395 | PUTBACK; |
443 | PUTBACK; |
396 | } |
444 | } |
397 | |
445 | |
398 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
446 | c->defav = c->save & CORO_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
399 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
447 | c->defsv = c->save & CORO_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
400 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
448 | c->errsv = c->save & CORO_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
|
|
449 | c->deffh = c->save & CORO_SAVE_DEFFH ? (GV *)SvREFCNT_inc (PL_defoutgv) : 0; |
|
|
450 | c->irssv = c->save & CORO_SAVE_IRSSV ? SvREFCNT_inc (PL_rs) : 0; |
401 | |
451 | |
402 | c->dowarn = PL_dowarn; |
452 | #define VAR(name,type)c->name = PL_ ## name; |
403 | c->in_eval = PL_in_eval; |
453 | # include "state.h" |
404 | |
454 | #undef VAR |
405 | c->curstackinfo = PL_curstackinfo; |
|
|
406 | c->curstack = PL_curstack; |
|
|
407 | c->mainstack = PL_mainstack; |
|
|
408 | c->stack_sp = PL_stack_sp; |
|
|
409 | c->op = PL_op; |
|
|
410 | c->curpad = PL_curpad; |
|
|
411 | c->comppad = PL_comppad; |
|
|
412 | c->compcv = PL_compcv; |
|
|
413 | c->stack_base = PL_stack_base; |
|
|
414 | c->stack_max = PL_stack_max; |
|
|
415 | c->tmps_stack = PL_tmps_stack; |
|
|
416 | c->tmps_floor = PL_tmps_floor; |
|
|
417 | c->tmps_ix = PL_tmps_ix; |
|
|
418 | c->tmps_max = PL_tmps_max; |
|
|
419 | c->markstack = PL_markstack; |
|
|
420 | c->markstack_ptr = PL_markstack_ptr; |
|
|
421 | c->markstack_max = PL_markstack_max; |
|
|
422 | c->scopestack = PL_scopestack; |
|
|
423 | c->scopestack_ix = PL_scopestack_ix; |
|
|
424 | c->scopestack_max = PL_scopestack_max; |
|
|
425 | c->savestack = PL_savestack; |
|
|
426 | c->savestack_ix = PL_savestack_ix; |
|
|
427 | c->savestack_max = PL_savestack_max; |
|
|
428 | #if PERL_VERSION < 9 |
|
|
429 | c->retstack = PL_retstack; |
|
|
430 | c->retstack_ix = PL_retstack_ix; |
|
|
431 | c->retstack_max = PL_retstack_max; |
|
|
432 | #endif |
|
|
433 | c->curpm = PL_curpm; |
|
|
434 | c->curcop = PL_curcop; |
|
|
435 | } |
455 | } |
436 | |
456 | |
437 | /* |
457 | /* |
438 | * allocate various perl stacks. This is an exact copy |
458 | * allocate various perl stacks. This is an exact copy |
439 | * of perl.c:init_stacks, except that it uses less memory |
459 | * of perl.c:init_stacks, except that it uses less memory |
440 | * on the (sometimes correct) assumption that coroutines do |
460 | * on the (sometimes correct) assumption that coroutines do |
441 | * not usually need a lot of stackspace. |
461 | * not usually need a lot of stackspace. |
442 | */ |
462 | */ |
|
|
463 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
464 | # define coro_init_stacks init_stacks |
|
|
465 | #else |
443 | static void |
466 | static void |
444 | coro_init_stacks (pTHX) |
467 | coro_init_stacks (pTHX) |
445 | { |
468 | { |
446 | LOCK; |
469 | PL_curstackinfo = new_stackinfo(64, 6); |
447 | |
|
|
448 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
|
|
449 | PL_curstackinfo->si_type = PERLSI_MAIN; |
470 | PL_curstackinfo->si_type = PERLSI_MAIN; |
450 | PL_curstack = PL_curstackinfo->si_stack; |
471 | PL_curstack = PL_curstackinfo->si_stack; |
451 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
472 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
452 | |
473 | |
453 | PL_stack_base = AvARRAY(PL_curstack); |
474 | PL_stack_base = AvARRAY(PL_curstack); |
454 | PL_stack_sp = PL_stack_base; |
475 | PL_stack_sp = PL_stack_base; |
455 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
476 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
456 | |
477 | |
457 | New(50,PL_tmps_stack,96,SV*); |
478 | New(50,PL_tmps_stack,64,SV*); |
458 | PL_tmps_floor = -1; |
479 | PL_tmps_floor = -1; |
459 | PL_tmps_ix = -1; |
480 | PL_tmps_ix = -1; |
460 | PL_tmps_max = 96; |
481 | PL_tmps_max = 64; |
461 | |
482 | |
462 | New(54,PL_markstack,16,I32); |
483 | New(54,PL_markstack,16,I32); |
463 | PL_markstack_ptr = PL_markstack; |
484 | PL_markstack_ptr = PL_markstack; |
464 | PL_markstack_max = PL_markstack + 16; |
485 | PL_markstack_max = PL_markstack + 16; |
465 | |
486 | |
… | |
… | |
469 | |
490 | |
470 | New(54,PL_scopestack,16,I32); |
491 | New(54,PL_scopestack,16,I32); |
471 | PL_scopestack_ix = 0; |
492 | PL_scopestack_ix = 0; |
472 | PL_scopestack_max = 16; |
493 | PL_scopestack_max = 16; |
473 | |
494 | |
474 | New(54,PL_savestack,96,ANY); |
495 | New(54,PL_savestack,64,ANY); |
475 | PL_savestack_ix = 0; |
496 | PL_savestack_ix = 0; |
476 | PL_savestack_max = 96; |
497 | PL_savestack_max = 64; |
477 | |
498 | |
478 | #if PERL_VERSION < 9 |
499 | #if !PERL_VERSION_ATLEAST (5,9,0) |
479 | New(54,PL_retstack,8,OP*); |
500 | New(54,PL_retstack,4,OP*); |
480 | PL_retstack_ix = 0; |
501 | PL_retstack_ix = 0; |
481 | PL_retstack_max = 8; |
502 | PL_retstack_max = 4; |
482 | #endif |
503 | #endif |
483 | |
|
|
484 | UNLOCK; |
|
|
485 | } |
504 | } |
|
|
505 | #endif |
486 | |
506 | |
487 | /* |
507 | /* |
488 | * destroy the stacks, the callchain etc... |
508 | * destroy the stacks, the callchain etc... |
489 | */ |
509 | */ |
490 | static void |
510 | static void |
491 | destroy_stacks(pTHX) |
511 | coro_destroy_stacks (pTHX) |
492 | { |
512 | { |
493 | if (!IN_DESTRUCT) |
513 | if (!IN_DESTRUCT) |
494 | { |
514 | { |
495 | /* is this ugly, I ask? */ |
515 | /* restore all saved variables and stuff */ |
496 | LEAVE_SCOPE (0); |
516 | LEAVE_SCOPE (0); |
|
|
517 | assert (PL_tmps_floor == -1); |
497 | |
518 | |
498 | /* sure it is, but more important: is it correct?? :/ */ |
519 | /* free all temporaries */ |
499 | FREETMPS; |
520 | FREETMPS; |
|
|
521 | assert (PL_tmps_ix == -1); |
500 | |
522 | |
|
|
523 | /* unwind all extra stacks */ |
501 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
524 | POPSTACK_TO (PL_mainstack); |
|
|
525 | |
|
|
526 | /* unwind main stack */ |
|
|
527 | dounwind (-1); |
502 | } |
528 | } |
503 | |
529 | |
504 | while (PL_curstackinfo->si_next) |
530 | while (PL_curstackinfo->si_next) |
505 | PL_curstackinfo = PL_curstackinfo->si_next; |
531 | PL_curstackinfo = PL_curstackinfo->si_next; |
506 | |
532 | |
507 | while (PL_curstackinfo) |
533 | while (PL_curstackinfo) |
508 | { |
534 | { |
509 | PERL_SI *p = PL_curstackinfo->si_prev; |
535 | PERL_SI *p = PL_curstackinfo->si_prev; |
510 | |
536 | |
511 | { /*D*//*remove*/ |
|
|
512 | dSP; |
|
|
513 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
514 | PUTBACK; /* possibly superfluous */ |
|
|
515 | } |
|
|
516 | |
|
|
517 | if (!IN_DESTRUCT) |
537 | if (!IN_DESTRUCT) |
518 | { |
|
|
519 | dounwind (-1);/*D*//*remove*/ |
|
|
520 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
538 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
521 | } |
|
|
522 | |
539 | |
523 | Safefree (PL_curstackinfo->si_cxstack); |
540 | Safefree (PL_curstackinfo->si_cxstack); |
524 | Safefree (PL_curstackinfo); |
541 | Safefree (PL_curstackinfo); |
525 | PL_curstackinfo = p; |
542 | PL_curstackinfo = p; |
526 | } |
543 | } |
527 | |
544 | |
528 | Safefree (PL_tmps_stack); |
545 | Safefree (PL_tmps_stack); |
529 | Safefree (PL_markstack); |
546 | Safefree (PL_markstack); |
530 | Safefree (PL_scopestack); |
547 | Safefree (PL_scopestack); |
531 | Safefree (PL_savestack); |
548 | Safefree (PL_savestack); |
532 | #if PERL_VERSION < 9 |
549 | #if !PERL_VERSION_ATLEAST (5,9,0) |
533 | Safefree (PL_retstack); |
550 | Safefree (PL_retstack); |
534 | #endif |
551 | #endif |
535 | } |
552 | } |
536 | |
553 | |
|
|
554 | static size_t |
|
|
555 | coro_rss (struct coro *coro) |
|
|
556 | { |
|
|
557 | size_t rss = sizeof (coro); |
|
|
558 | |
|
|
559 | if (coro->mainstack) |
|
|
560 | { |
|
|
561 | if (coro->flags & CF_RUNNING) |
|
|
562 | { |
|
|
563 | #define VAR(name,type)coro->name = PL_ ## name; |
|
|
564 | # include "state.h" |
|
|
565 | #undef VAR |
|
|
566 | } |
|
|
567 | |
|
|
568 | rss += sizeof (coro->curstackinfo); |
|
|
569 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
570 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
571 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
|
|
572 | rss += coro->tmps_max * sizeof (SV *); |
|
|
573 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
|
|
574 | rss += coro->scopestack_max * sizeof (I32); |
|
|
575 | rss += coro->savestack_max * sizeof (ANY); |
|
|
576 | |
|
|
577 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
578 | rss += coro->retstack_max * sizeof (OP *); |
|
|
579 | #endif |
|
|
580 | } |
|
|
581 | |
|
|
582 | return rss; |
|
|
583 | } |
|
|
584 | |
|
|
585 | /** coroutine stack handling ************************************************/ |
|
|
586 | |
537 | static void |
587 | static void |
538 | setup_coro (struct coro *coro) |
588 | setup_coro (pTHX_ struct coro *coro) |
539 | { |
589 | { |
540 | /* |
590 | /* |
541 | * emulate part of the perl startup here. |
591 | * emulate part of the perl startup here. |
542 | */ |
592 | */ |
543 | dTHX; |
593 | coro_init_stacks (aTHX); |
|
|
594 | |
|
|
595 | PL_curcop = &PL_compiling; |
|
|
596 | PL_in_eval = EVAL_NULL; |
|
|
597 | PL_comppad = 0; |
|
|
598 | PL_curpm = 0; |
|
|
599 | PL_localizing = 0; |
|
|
600 | PL_dirty = 0; |
|
|
601 | PL_restartop = 0; |
|
|
602 | |
|
|
603 | { |
|
|
604 | dSP; |
|
|
605 | LOGOP myop; |
|
|
606 | |
|
|
607 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
608 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
609 | |
|
|
610 | Zero (&myop, 1, LOGOP); |
|
|
611 | myop.op_next = Nullop; |
|
|
612 | myop.op_flags = OPf_WANT_VOID; |
|
|
613 | |
|
|
614 | PUSHMARK (SP); |
|
|
615 | XPUSHs (av_shift (GvAV (PL_defgv))); |
|
|
616 | PUTBACK; |
|
|
617 | PL_op = (OP *)&myop; |
|
|
618 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
619 | SPAGAIN; |
|
|
620 | } |
|
|
621 | |
|
|
622 | ENTER; /* necessary e.g. for dounwind */ |
|
|
623 | } |
|
|
624 | |
|
|
625 | static void |
|
|
626 | free_coro_mortal (pTHX) |
|
|
627 | { |
|
|
628 | if (coro_mortal) |
|
|
629 | { |
|
|
630 | SvREFCNT_dec (coro_mortal); |
|
|
631 | coro_mortal = 0; |
|
|
632 | } |
|
|
633 | } |
|
|
634 | |
|
|
635 | static void |
|
|
636 | do_trace (pTHX) |
|
|
637 | { |
|
|
638 | if (PL_curcop != &PL_compiling) |
|
|
639 | { |
|
|
640 | runops_proc_t old_runops = PL_runops; |
|
|
641 | dSP; |
|
|
642 | ENTER; |
|
|
643 | SAVETMPS; |
|
|
644 | PUSHMARK (SP); |
|
|
645 | PUTBACK; |
|
|
646 | PL_runops = RUNOPS_DEFAULT; |
|
|
647 | call_pv ("Coro::_do_trace", G_KEEPERR | G_EVAL | G_VOID | G_DISCARD | G_NOARGS); |
|
|
648 | PL_runops = old_runops; |
|
|
649 | SPAGAIN; |
|
|
650 | FREETMPS; |
|
|
651 | LEAVE; |
|
|
652 | PUTBACK; |
|
|
653 | } |
|
|
654 | } |
|
|
655 | |
|
|
656 | static int |
|
|
657 | runops_coro (pTHX) |
|
|
658 | { |
|
|
659 | COP *oldcop = 0; |
|
|
660 | |
|
|
661 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
662 | { |
|
|
663 | PERL_ASYNC_CHECK (); |
|
|
664 | |
|
|
665 | if (oldcop != PL_curcop) |
|
|
666 | { |
|
|
667 | oldcop = PL_curcop; |
|
|
668 | do_trace (aTHX); |
|
|
669 | } |
|
|
670 | } |
|
|
671 | |
|
|
672 | TAINT_NOT; |
|
|
673 | return 0; |
|
|
674 | } |
|
|
675 | |
|
|
676 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
677 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
678 | /* during execution of a perl program */ |
|
|
679 | static void NOINLINE |
|
|
680 | prepare_cctx (pTHX_ coro_cctx *cctx) |
|
|
681 | { |
544 | dSP; |
682 | dSP; |
545 | UNOP myop; |
683 | LOGOP myop; |
546 | SV *sub_init = (SV *)get_cv ("Coro::State::coro_init", FALSE); |
|
|
547 | |
684 | |
548 | coro_init_stacks (aTHX); |
685 | PL_top_env = &PL_start_env; |
549 | /*PL_curcop = 0;*/ |
|
|
550 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
|
|
551 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
552 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
553 | |
686 | |
554 | SPAGAIN; |
687 | if (cctx->flags & CC_TRACE) |
|
|
688 | PL_runops = runops_coro; |
555 | |
689 | |
556 | Zero (&myop, 1, UNOP); |
690 | Zero (&myop, 1, LOGOP); |
557 | myop.op_next = Nullop; |
691 | myop.op_next = PL_op; |
558 | myop.op_flags = OPf_WANT_VOID; |
692 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
559 | |
693 | |
|
|
694 | PUSHMARK (SP); |
|
|
695 | EXTEND (SP, 2); |
|
|
696 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
|
|
697 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
|
|
698 | PUTBACK; |
560 | PL_op = (OP *)&myop; |
699 | PL_op = (OP *)&myop; |
561 | |
|
|
562 | PUSHMARK(SP); |
|
|
563 | XPUSHs (sub_init); |
|
|
564 | PUTBACK; |
|
|
565 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
700 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
566 | SPAGAIN; |
701 | SPAGAIN; |
567 | |
|
|
568 | ENTER; /* necessary e.g. for dounwind */ |
|
|
569 | } |
702 | } |
570 | |
703 | |
571 | static void |
704 | /* |
572 | free_coro_mortal () |
705 | * this is a _very_ stripped down perl interpreter ;) |
573 | { |
706 | */ |
574 | if (coro_mortal) |
|
|
575 | { |
|
|
576 | SvREFCNT_dec (coro_mortal); |
|
|
577 | coro_mortal = 0; |
|
|
578 | } |
|
|
579 | } |
|
|
580 | |
|
|
581 | static void |
707 | static void |
582 | coro_run (void *arg) |
708 | coro_run (void *arg) |
583 | { |
709 | { |
|
|
710 | dTHX; |
|
|
711 | |
|
|
712 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
|
|
713 | UNLOCK; |
|
|
714 | |
|
|
715 | /* we now skip the entersub that lead to transfer() */ |
|
|
716 | PL_op = PL_op->op_next; |
|
|
717 | |
|
|
718 | /* inject a fake subroutine call to cctx_init */ |
|
|
719 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
|
|
720 | |
|
|
721 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
|
|
722 | PL_restartop = PL_op; |
|
|
723 | perl_run (PL_curinterp); |
|
|
724 | |
584 | /* |
725 | /* |
585 | * this is a _very_ stripped down perl interpreter ;) |
726 | * If perl-run returns we assume exit() was being called or the coro |
|
|
727 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
728 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
729 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
730 | * coroutine as Coro has no such concept |
586 | */ |
731 | */ |
587 | dTHX; |
|
|
588 | int ret; |
|
|
589 | |
|
|
590 | UNLOCK; |
|
|
591 | |
|
|
592 | PL_top_env = &PL_start_env; |
732 | PL_top_env = main_top_env; |
593 | |
733 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
594 | sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV ((coro_stack *)arg)); |
|
|
595 | sv_setiv (get_sv ("Coro::State::cctx_restartop", FALSE), PTR2IV (PL_op)); |
|
|
596 | |
|
|
597 | /* continue at cctx_init, without entersub */ |
|
|
598 | PL_restartop = CvSTART (get_cv ("Coro::State::cctx_init", FALSE)); |
|
|
599 | |
|
|
600 | /* somebody will hit me for both perl_run and PL_restartop */ |
|
|
601 | ret = perl_run (aTHX_ PERL_GET_CONTEXT); |
|
|
602 | printf ("ret %d\n", ret);//D |
|
|
603 | |
|
|
604 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr); |
|
|
605 | abort (); |
|
|
606 | } |
734 | } |
607 | |
735 | |
608 | static coro_stack * |
736 | static coro_cctx * |
609 | stack_new () |
737 | cctx_new () |
610 | { |
738 | { |
611 | coro_stack *stack; |
739 | coro_cctx *cctx; |
|
|
740 | void *stack_start; |
|
|
741 | size_t stack_size; |
612 | |
742 | |
|
|
743 | ++cctx_count; |
|
|
744 | |
613 | New (0, stack, 1, coro_stack); |
745 | Newz (0, cctx, 1, coro_cctx); |
614 | |
746 | |
615 | #if HAVE_MMAP |
747 | #if HAVE_MMAP |
616 | |
748 | |
617 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
749 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
618 | /* mmap suppsedly does allocate-on-write for us */ |
750 | /* mmap supposedly does allocate-on-write for us */ |
619 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
751 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
620 | |
752 | |
621 | if (stack->sptr == (void *)-1) |
753 | if (cctx->sptr != (void *)-1) |
622 | { |
|
|
623 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
624 | _exit (EXIT_FAILURE); |
|
|
625 | } |
754 | { |
626 | |
|
|
627 | # if STACKGUARD |
755 | # if CORO_STACKGUARD |
628 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
756 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
629 | # endif |
757 | # endif |
630 | |
758 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
631 | #else |
759 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
632 | |
760 | cctx->flags |= CC_MAPPED; |
633 | stack->ssize = STACKSIZE * (long)sizeof (long); |
|
|
634 | New (0, stack->sptr, STACKSIZE, long); |
|
|
635 | |
|
|
636 | if (!stack->sptr) |
|
|
637 | { |
761 | } |
|
|
762 | else |
|
|
763 | #endif |
|
|
764 | { |
|
|
765 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
766 | New (0, cctx->sptr, coro_stacksize, long); |
|
|
767 | |
|
|
768 | if (!cctx->sptr) |
|
|
769 | { |
638 | perror (stderr, "FATAL: unable to malloc stack for coroutine"); |
770 | perror ("FATAL: unable to allocate stack for coroutine"); |
639 | _exit (EXIT_FAILURE); |
771 | _exit (EXIT_FAILURE); |
640 | } |
772 | } |
641 | |
773 | |
642 | #endif |
774 | stack_start = cctx->sptr; |
|
|
775 | stack_size = cctx->ssize; |
|
|
776 | } |
643 | |
777 | |
|
|
778 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
644 | coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize); |
779 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
645 | |
780 | |
646 | return stack; |
781 | return cctx; |
647 | } |
782 | } |
648 | |
783 | |
649 | static void |
784 | static void |
650 | stack_free (coro_stack *stack) |
785 | cctx_destroy (coro_cctx *cctx) |
651 | { |
786 | { |
652 | if (!stack || stack == main_stack) |
787 | if (!cctx) |
653 | return; |
788 | return; |
654 | |
789 | |
|
|
790 | --cctx_count; |
|
|
791 | |
|
|
792 | #if CORO_USE_VALGRIND |
|
|
793 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
794 | #endif |
|
|
795 | |
655 | #if HAVE_MMAP |
796 | #if HAVE_MMAP |
|
|
797 | if (cctx->flags & CC_MAPPED) |
656 | munmap (stack->sptr, stack->ssize); |
798 | munmap (cctx->sptr, cctx->ssize); |
657 | #else |
|
|
658 | Safefree (stack->sptr); |
|
|
659 | #endif |
|
|
660 | |
|
|
661 | Safefree (stack); |
|
|
662 | } |
|
|
663 | |
|
|
664 | static coro_stack *stack_first; |
|
|
665 | |
|
|
666 | static coro_stack * |
|
|
667 | stack_get () |
|
|
668 | { |
|
|
669 | coro_stack *stack; |
|
|
670 | |
|
|
671 | if (stack_first) |
|
|
672 | { |
|
|
673 | stack = stack_first; |
|
|
674 | stack_first = stack->next; |
|
|
675 | } |
|
|
676 | else |
799 | else |
|
|
800 | #endif |
|
|
801 | Safefree (cctx->sptr); |
|
|
802 | |
|
|
803 | Safefree (cctx); |
|
|
804 | } |
|
|
805 | |
|
|
806 | static coro_cctx * |
|
|
807 | cctx_get (pTHX) |
|
|
808 | { |
|
|
809 | while (cctx_first) |
677 | { |
810 | { |
678 | stack = stack_new (); |
811 | coro_cctx *cctx = cctx_first; |
679 | PL_op = PL_op->op_next; |
812 | cctx_first = cctx->next; |
|
|
813 | --cctx_idle; |
|
|
814 | |
|
|
815 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
|
|
816 | return cctx; |
|
|
817 | |
|
|
818 | cctx_destroy (cctx); |
680 | } |
819 | } |
681 | |
820 | |
682 | return stack; |
821 | return cctx_new (); |
683 | } |
822 | } |
684 | |
823 | |
685 | static void |
824 | static void |
686 | stack_put (coro_stack *stack) |
825 | cctx_put (coro_cctx *cctx) |
687 | { |
826 | { |
688 | stack->next = stack_first; |
827 | /* free another cctx if overlimit */ |
689 | stack_first = stack; |
828 | if (cctx_idle >= MAX_IDLE_CCTX) |
|
|
829 | { |
|
|
830 | coro_cctx *first = cctx_first; |
|
|
831 | cctx_first = first->next; |
|
|
832 | --cctx_idle; |
|
|
833 | |
|
|
834 | cctx_destroy (first); |
|
|
835 | } |
|
|
836 | |
|
|
837 | ++cctx_idle; |
|
|
838 | cctx->next = cctx_first; |
|
|
839 | cctx_first = cctx; |
690 | } |
840 | } |
|
|
841 | |
|
|
842 | /** coroutine switching *****************************************************/ |
691 | |
843 | |
692 | /* never call directly, always through the coro_state_transfer global variable */ |
844 | /* never call directly, always through the coro_state_transfer global variable */ |
693 | static void |
845 | static void NOINLINE |
694 | transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
846 | transfer (pTHX_ struct coro *prev, struct coro *next) |
695 | { |
847 | { |
696 | dSTACKLEVEL; |
848 | dSTACKLEVEL; |
697 | |
849 | |
698 | /* sometimes transfer is only called to set idle_sp */ |
850 | /* sometimes transfer is only called to set idle_sp */ |
699 | if (flags == TRANSFER_SET_STACKLEVEL) |
851 | if (!next) |
|
|
852 | { |
700 | ((coro_stack *)prev)->idle_sp = STACKLEVEL; |
853 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
|
|
854 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
|
|
855 | } |
701 | else if (prev != next) |
856 | else if (prev != next) |
702 | { |
857 | { |
703 | coro_stack *prev__stack; |
858 | coro_cctx *prev__cctx; |
|
|
859 | |
|
|
860 | if (prev->flags & CF_NEW) |
|
|
861 | { |
|
|
862 | /* create a new empty context */ |
|
|
863 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
864 | prev->flags &= ~CF_NEW; |
|
|
865 | prev->flags |= CF_RUNNING; |
|
|
866 | } |
|
|
867 | |
|
|
868 | /*TODO: must not croak here */ |
|
|
869 | if (!prev->flags & CF_RUNNING) |
|
|
870 | croak ("Coro::State::transfer called with non-running prev Coro::State, but can only transfer from running states"); |
|
|
871 | |
|
|
872 | if (next->flags & CF_RUNNING) |
|
|
873 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
874 | |
|
|
875 | if (next->flags & CF_DESTROYED) |
|
|
876 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
877 | |
|
|
878 | prev->flags &= ~CF_RUNNING; |
|
|
879 | next->flags |= CF_RUNNING; |
704 | |
880 | |
705 | LOCK; |
881 | LOCK; |
706 | |
882 | |
707 | if (next->mainstack) |
883 | if (next->flags & CF_NEW) |
708 | { |
884 | { |
709 | /* coroutine already started */ |
885 | /* need to start coroutine */ |
710 | SAVE (prev, flags); |
886 | next->flags &= ~CF_NEW; |
711 | LOAD (next); |
887 | /* first get rid of the old state */ |
|
|
888 | save_perl (aTHX_ prev); |
|
|
889 | /* setup coroutine call */ |
|
|
890 | setup_coro (aTHX_ next); |
712 | } |
891 | } |
713 | else |
892 | else |
714 | { |
893 | { |
715 | /* need to start coroutine */ |
894 | /* coroutine already started */ |
716 | /* first get rid of the old state */ |
895 | save_perl (aTHX_ prev); |
717 | SAVE (prev, -1); |
896 | load_perl (aTHX_ next); |
718 | /* setup coroutine call */ |
|
|
719 | setup_coro (next); |
|
|
720 | /* need a stack */ |
|
|
721 | next->stack = 0; |
|
|
722 | } |
897 | } |
723 | |
898 | |
724 | prev__stack = prev->stack; |
899 | prev__cctx = prev->cctx; |
725 | |
900 | |
726 | /* possibly "free" the stack */ |
901 | /* possibly "free" the cctx */ |
727 | if (prev__stack->idle_sp == STACKLEVEL) |
902 | if (prev__cctx->idle_sp == STACKLEVEL) |
728 | { |
903 | { |
729 | stack_put (prev__stack); |
904 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
|
|
905 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
|
|
906 | |
730 | prev->stack = 0; |
907 | prev->cctx = 0; |
|
|
908 | |
|
|
909 | cctx_put (prev__cctx); |
731 | } |
910 | } |
732 | |
911 | |
733 | if (!next->stack) |
912 | if (!next->cctx) |
734 | next->stack = stack_get (); |
913 | next->cctx = cctx_get (aTHX); |
735 | |
914 | |
736 | if (prev__stack != next->stack) |
915 | if (prev__cctx != next->cctx) |
737 | { |
916 | { |
738 | prev__stack->top_env = PL_top_env; |
917 | prev__cctx->top_env = PL_top_env; |
739 | PL_top_env = next->stack->top_env; |
918 | PL_top_env = next->cctx->top_env; |
740 | printf ("stacksw %p %p\n", prev__stack->idle_sp, next->stack->idle_sp);//D |
|
|
741 | coro_transfer (&prev__stack->cctx, &next->stack->cctx); |
919 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
742 | } |
920 | } |
743 | |
921 | |
744 | free_coro_mortal (); |
922 | free_coro_mortal (aTHX); |
745 | |
|
|
746 | UNLOCK; |
923 | UNLOCK; |
747 | } |
924 | } |
748 | } |
925 | } |
749 | |
926 | |
750 | /* use this function pointer to call the above function */ |
|
|
751 | /* this is done to increase chances of the compiler not inlining the call */ |
|
|
752 | /* not static to make it even harder for the compiler (and theoretically impossible in most cases */ |
|
|
753 | void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; |
|
|
754 | |
|
|
755 | struct transfer_args |
927 | struct transfer_args |
756 | { |
928 | { |
757 | struct coro *prev, *next; |
929 | struct coro *prev, *next; |
758 | int flags; |
|
|
759 | }; |
930 | }; |
760 | |
931 | |
761 | #define TRANSFER(ta) coro_state_transfer ((ta).prev, (ta).next, (ta).flags) |
932 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
762 | |
933 | |
|
|
934 | /** high level stuff ********************************************************/ |
|
|
935 | |
763 | static void |
936 | static int |
764 | coro_state_destroy (struct coro *coro) |
937 | coro_state_destroy (pTHX_ struct coro *coro) |
765 | { |
938 | { |
766 | if (coro->refcnt--) |
939 | if (coro->flags & CF_DESTROYED) |
767 | return; |
940 | return 0; |
|
|
941 | |
|
|
942 | coro->flags |= CF_DESTROYED; |
|
|
943 | |
|
|
944 | if (coro->flags & CF_READY) |
|
|
945 | { |
|
|
946 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
947 | /* alternative: look through all ready queues and remove the coro */ |
|
|
948 | LOCK; |
|
|
949 | --coro_nready; |
|
|
950 | UNLOCK; |
|
|
951 | } |
|
|
952 | else |
|
|
953 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
768 | |
954 | |
769 | if (coro->mainstack && coro->mainstack != main_mainstack) |
955 | if (coro->mainstack && coro->mainstack != main_mainstack) |
770 | { |
956 | { |
771 | struct coro temp; |
957 | struct coro temp; |
772 | |
958 | |
773 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
959 | assert (!(coro->flags & CF_RUNNING)); |
|
|
960 | |
|
|
961 | Zero (&temp, 1, struct coro); |
|
|
962 | temp.save = CORO_SAVE_ALL; |
|
|
963 | |
|
|
964 | if (coro->flags & CF_RUNNING) |
|
|
965 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
966 | |
|
|
967 | save_perl (aTHX_ &temp); |
774 | LOAD (aTHX_ coro); |
968 | load_perl (aTHX_ coro); |
775 | |
969 | |
776 | destroy_stacks (aTHX); |
970 | coro_destroy_stacks (aTHX); |
777 | |
971 | |
778 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
972 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
779 | |
973 | |
780 | coro->mainstack = 0; |
974 | coro->mainstack = 0; |
781 | } |
975 | } |
782 | |
976 | |
783 | stack_free (coro->stack); |
977 | cctx_destroy (coro->cctx); |
784 | SvREFCNT_dec (coro->args); |
978 | SvREFCNT_dec (coro->args); |
785 | Safefree (coro); |
979 | |
|
|
980 | if (coro->next) coro->next->prev = coro->prev; |
|
|
981 | if (coro->prev) coro->prev->next = coro->next; |
|
|
982 | if (coro == coro_first) coro_first = coro->next; |
|
|
983 | |
|
|
984 | return 1; |
786 | } |
985 | } |
787 | |
986 | |
788 | static int |
987 | static int |
789 | coro_state_clear (SV *sv, MAGIC *mg) |
988 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
790 | { |
989 | { |
791 | struct coro *coro = (struct coro *)mg->mg_ptr; |
990 | struct coro *coro = (struct coro *)mg->mg_ptr; |
792 | mg->mg_ptr = 0; |
991 | mg->mg_ptr = 0; |
793 | |
992 | |
|
|
993 | coro->hv = 0; |
|
|
994 | |
|
|
995 | if (--coro->refcnt < 0) |
|
|
996 | { |
794 | coro_state_destroy (coro); |
997 | coro_state_destroy (aTHX_ coro); |
|
|
998 | Safefree (coro); |
|
|
999 | } |
795 | |
1000 | |
796 | return 0; |
1001 | return 0; |
797 | } |
1002 | } |
798 | |
1003 | |
799 | static int |
1004 | static int |
800 | coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) |
1005 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
801 | { |
1006 | { |
802 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1007 | struct coro *coro = (struct coro *)mg->mg_ptr; |
803 | |
1008 | |
804 | ++coro->refcnt; |
1009 | ++coro->refcnt; |
805 | |
1010 | |
806 | return 0; |
1011 | return 0; |
807 | } |
1012 | } |
808 | |
1013 | |
809 | static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; |
1014 | static MGVTBL coro_state_vtbl = { |
|
|
1015 | 0, 0, 0, 0, |
|
|
1016 | coro_state_free, |
|
|
1017 | 0, |
|
|
1018 | #ifdef MGf_DUP |
|
|
1019 | coro_state_dup, |
|
|
1020 | #else |
|
|
1021 | # define MGf_DUP 0 |
|
|
1022 | #endif |
|
|
1023 | }; |
810 | |
1024 | |
811 | static struct coro * |
1025 | static struct coro * |
812 | SvSTATE (SV *coro) |
1026 | SvSTATE_ (pTHX_ SV *coro) |
813 | { |
1027 | { |
814 | HV *stash; |
1028 | HV *stash; |
815 | MAGIC *mg; |
1029 | MAGIC *mg; |
816 | |
1030 | |
817 | if (SvROK (coro)) |
1031 | if (SvROK (coro)) |
… | |
… | |
823 | /* very slow, but rare, check */ |
1037 | /* very slow, but rare, check */ |
824 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
1038 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
825 | croak ("Coro::State object required"); |
1039 | croak ("Coro::State object required"); |
826 | } |
1040 | } |
827 | |
1041 | |
828 | mg = SvMAGIC (coro); |
1042 | mg = CORO_MAGIC (coro); |
829 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
830 | return (struct coro *)mg->mg_ptr; |
1043 | return (struct coro *)mg->mg_ptr; |
831 | } |
1044 | } |
832 | |
1045 | |
|
|
1046 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
|
|
1047 | |
833 | static void |
1048 | static void |
834 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev, SV *next, int flags) |
1049 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
835 | { |
1050 | { |
836 | ta->prev = SvSTATE (prev); |
1051 | ta->prev = SvSTATE (prev_sv); |
837 | ta->next = SvSTATE (next); |
1052 | ta->next = SvSTATE (next_sv); |
838 | ta->flags = flags; |
|
|
839 | } |
1053 | } |
840 | |
1054 | |
841 | static void |
1055 | static void |
842 | api_transfer (SV *prev, SV *next, int flags) |
1056 | api_transfer (SV *prev_sv, SV *next_sv) |
843 | { |
1057 | { |
844 | dTHX; |
1058 | dTHX; |
845 | struct transfer_args ta; |
1059 | struct transfer_args ta; |
846 | |
1060 | |
847 | prepare_transfer (aTHX_ &ta, prev, next, flags); |
1061 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
848 | TRANSFER (ta); |
1062 | TRANSFER (ta); |
849 | } |
1063 | } |
850 | |
1064 | |
|
|
1065 | static int |
|
|
1066 | api_save (SV *coro_sv, int new_save) |
|
|
1067 | { |
|
|
1068 | dTHX; |
|
|
1069 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1070 | int old_save = coro->save; |
|
|
1071 | |
|
|
1072 | if (new_save >= 0) |
|
|
1073 | coro->save = new_save; |
|
|
1074 | |
|
|
1075 | return old_save; |
|
|
1076 | } |
|
|
1077 | |
851 | /** Coro ********************************************************************/ |
1078 | /** Coro ********************************************************************/ |
852 | |
1079 | |
853 | #define PRIO_MAX 3 |
|
|
854 | #define PRIO_HIGH 1 |
|
|
855 | #define PRIO_NORMAL 0 |
|
|
856 | #define PRIO_LOW -1 |
|
|
857 | #define PRIO_IDLE -3 |
|
|
858 | #define PRIO_MIN -4 |
|
|
859 | |
|
|
860 | /* for Coro.pm */ |
|
|
861 | static GV *coro_current, *coro_idle; |
|
|
862 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
863 | static int coro_nready; |
|
|
864 | |
|
|
865 | static void |
1080 | static void |
866 | coro_enq (pTHX_ SV *sv) |
1081 | coro_enq (pTHX_ SV *coro_sv) |
867 | { |
1082 | { |
868 | int prio; |
|
|
869 | |
|
|
870 | if (SvTYPE (sv) != SVt_PVHV) |
|
|
871 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
872 | |
|
|
873 | prio = SvSTATE (sv)->prio; |
|
|
874 | |
|
|
875 | av_push (coro_ready [prio - PRIO_MIN], sv); |
1083 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
876 | coro_nready++; |
|
|
877 | } |
1084 | } |
878 | |
1085 | |
879 | static SV * |
1086 | static SV * |
880 | coro_deq (pTHX_ int min_prio) |
1087 | coro_deq (pTHX_ int min_prio) |
881 | { |
1088 | { |
… | |
… | |
885 | if (min_prio < 0) |
1092 | if (min_prio < 0) |
886 | min_prio = 0; |
1093 | min_prio = 0; |
887 | |
1094 | |
888 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1095 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
889 | if (AvFILLp (coro_ready [prio]) >= 0) |
1096 | if (AvFILLp (coro_ready [prio]) >= 0) |
890 | { |
|
|
891 | coro_nready--; |
|
|
892 | return av_shift (coro_ready [prio]); |
1097 | return av_shift (coro_ready [prio]); |
893 | } |
|
|
894 | |
1098 | |
895 | return 0; |
1099 | return 0; |
896 | } |
1100 | } |
897 | |
1101 | |
898 | static void |
1102 | static int |
899 | api_ready (SV *coro) |
1103 | api_ready (SV *coro_sv) |
900 | { |
1104 | { |
901 | dTHX; |
1105 | dTHX; |
|
|
1106 | struct coro *coro; |
902 | |
1107 | |
903 | if (SvROK (coro)) |
1108 | if (SvROK (coro_sv)) |
904 | coro = SvRV (coro); |
1109 | coro_sv = SvRV (coro_sv); |
|
|
1110 | |
|
|
1111 | coro = SvSTATE (coro_sv); |
|
|
1112 | |
|
|
1113 | if (coro->flags & CF_READY) |
|
|
1114 | return 0; |
|
|
1115 | |
|
|
1116 | coro->flags |= CF_READY; |
905 | |
1117 | |
906 | LOCK; |
1118 | LOCK; |
907 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
1119 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1120 | ++coro_nready; |
908 | UNLOCK; |
1121 | UNLOCK; |
909 | } |
|
|
910 | |
1122 | |
|
|
1123 | return 1; |
|
|
1124 | } |
|
|
1125 | |
911 | static void |
1126 | static int |
|
|
1127 | api_is_ready (SV *coro_sv) |
|
|
1128 | { |
|
|
1129 | dTHX; |
|
|
1130 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1131 | } |
|
|
1132 | |
|
|
1133 | static void |
912 | prepare_schedule (aTHX_ struct transfer_args *ta) |
1134 | prepare_schedule (pTHX_ struct transfer_args *ta) |
913 | { |
1135 | { |
914 | SV *current, *prev, *next; |
1136 | SV *prev_sv, *next_sv; |
|
|
1137 | |
|
|
1138 | for (;;) |
|
|
1139 | { |
|
|
1140 | LOCK; |
|
|
1141 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1142 | |
|
|
1143 | /* nothing to schedule: call the idle handler */ |
|
|
1144 | if (!next_sv) |
|
|
1145 | { |
|
|
1146 | dSP; |
|
|
1147 | UNLOCK; |
|
|
1148 | |
|
|
1149 | ENTER; |
|
|
1150 | SAVETMPS; |
|
|
1151 | |
|
|
1152 | PUSHMARK (SP); |
|
|
1153 | PUTBACK; |
|
|
1154 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1155 | |
|
|
1156 | FREETMPS; |
|
|
1157 | LEAVE; |
|
|
1158 | continue; |
|
|
1159 | } |
|
|
1160 | |
|
|
1161 | ta->next = SvSTATE (next_sv); |
|
|
1162 | |
|
|
1163 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1164 | if (ta->next->flags & CF_DESTROYED) |
|
|
1165 | { |
|
|
1166 | UNLOCK; |
|
|
1167 | SvREFCNT_dec (next_sv); |
|
|
1168 | /* coro_nready is already taken care of by destroy */ |
|
|
1169 | continue; |
|
|
1170 | } |
|
|
1171 | |
|
|
1172 | --coro_nready; |
|
|
1173 | UNLOCK; |
|
|
1174 | break; |
|
|
1175 | } |
|
|
1176 | |
|
|
1177 | /* free this only after the transfer */ |
|
|
1178 | prev_sv = SvRV (coro_current); |
|
|
1179 | SvRV_set (coro_current, next_sv); |
|
|
1180 | ta->prev = SvSTATE (prev_sv); |
|
|
1181 | |
|
|
1182 | assert (ta->next->flags & CF_READY); |
|
|
1183 | ta->next->flags &= ~CF_READY; |
915 | |
1184 | |
916 | LOCK; |
1185 | LOCK; |
917 | |
|
|
918 | current = GvSV (coro_current); |
|
|
919 | |
|
|
920 | for (;;) |
|
|
921 | { |
|
|
922 | LOCK; |
|
|
923 | |
|
|
924 | next = coro_deq (aTHX_ PRIO_MIN); |
|
|
925 | |
|
|
926 | if (next) |
|
|
927 | break; |
|
|
928 | |
|
|
929 | UNLOCK; |
|
|
930 | |
|
|
931 | { |
|
|
932 | dSP; |
|
|
933 | |
|
|
934 | ENTER; |
|
|
935 | SAVETMPS; |
|
|
936 | |
|
|
937 | PUSHMARK (SP); |
|
|
938 | PUTBACK; |
|
|
939 | call_sv (GvSV (coro_idle), G_DISCARD); |
|
|
940 | |
|
|
941 | FREETMPS; |
|
|
942 | LEAVE; |
|
|
943 | } |
|
|
944 | } |
|
|
945 | |
|
|
946 | prev = SvRV (current); |
|
|
947 | SvRV (current) = next; |
|
|
948 | |
|
|
949 | /* free this only after the transfer */ |
|
|
950 | free_coro_mortal (); |
1186 | free_coro_mortal (aTHX); |
951 | coro_mortal = prev; |
1187 | coro_mortal = prev_sv; |
952 | |
|
|
953 | ta->prev = SvSTATE (prev); |
|
|
954 | ta->next = SvSTATE (next); |
|
|
955 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
956 | |
|
|
957 | UNLOCK; |
1188 | UNLOCK; |
958 | } |
1189 | } |
959 | |
1190 | |
960 | static void |
1191 | static void |
961 | prepare_cede (aTHX_ struct transfer_args *ta) |
1192 | prepare_cede (pTHX_ struct transfer_args *ta) |
962 | { |
1193 | { |
963 | LOCK; |
1194 | api_ready (coro_current); |
964 | coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
965 | UNLOCK; |
|
|
966 | |
|
|
967 | prepare_schedule (ta); |
1195 | prepare_schedule (aTHX_ ta); |
|
|
1196 | } |
|
|
1197 | |
|
|
1198 | static int |
|
|
1199 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1200 | { |
|
|
1201 | if (coro_nready) |
|
|
1202 | { |
|
|
1203 | SV *prev = SvRV (coro_current); |
|
|
1204 | prepare_schedule (aTHX_ ta); |
|
|
1205 | api_ready (prev); |
|
|
1206 | return 1; |
|
|
1207 | } |
|
|
1208 | else |
|
|
1209 | return 0; |
968 | } |
1210 | } |
969 | |
1211 | |
970 | static void |
1212 | static void |
971 | api_schedule (void) |
1213 | api_schedule (void) |
972 | { |
1214 | { |
973 | dTHX; |
1215 | dTHX; |
974 | struct transfer_args ta; |
1216 | struct transfer_args ta; |
975 | |
1217 | |
976 | prepare_schedule (&ta); |
1218 | prepare_schedule (aTHX_ &ta); |
977 | TRANSFER (ta); |
1219 | TRANSFER (ta); |
978 | } |
1220 | } |
979 | |
1221 | |
980 | static void |
1222 | static int |
981 | api_cede (void) |
1223 | api_cede (void) |
982 | { |
1224 | { |
983 | dTHX; |
1225 | dTHX; |
984 | struct transfer_args ta; |
1226 | struct transfer_args ta; |
985 | |
1227 | |
986 | prepare_cede (&ta); |
1228 | prepare_cede (aTHX_ &ta); |
|
|
1229 | |
|
|
1230 | if (ta.prev != ta.next) |
|
|
1231 | { |
987 | TRANSFER (ta); |
1232 | TRANSFER (ta); |
|
|
1233 | return 1; |
|
|
1234 | } |
|
|
1235 | else |
|
|
1236 | return 0; |
|
|
1237 | } |
|
|
1238 | |
|
|
1239 | static int |
|
|
1240 | api_cede_notself (void) |
|
|
1241 | { |
|
|
1242 | dTHX; |
|
|
1243 | struct transfer_args ta; |
|
|
1244 | |
|
|
1245 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1246 | { |
|
|
1247 | TRANSFER (ta); |
|
|
1248 | return 1; |
|
|
1249 | } |
|
|
1250 | else |
|
|
1251 | return 0; |
988 | } |
1252 | } |
989 | |
1253 | |
990 | MODULE = Coro::State PACKAGE = Coro::State |
1254 | MODULE = Coro::State PACKAGE = Coro::State |
991 | |
1255 | |
992 | PROTOTYPES: DISABLE |
1256 | PROTOTYPES: DISABLE |
… | |
… | |
998 | #endif |
1262 | #endif |
999 | BOOT_PAGESIZE; |
1263 | BOOT_PAGESIZE; |
1000 | |
1264 | |
1001 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1265 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1002 | |
1266 | |
1003 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1267 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (CORO_SAVE_DEFAV)); |
1004 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1268 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (CORO_SAVE_DEFSV)); |
1005 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1269 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (CORO_SAVE_ERRSV)); |
|
|
1270 | newCONSTSUB (coro_state_stash, "SAVE_IRSSV", newSViv (CORO_SAVE_IRSSV)); |
|
|
1271 | newCONSTSUB (coro_state_stash, "SAVE_DEFFH", newSViv (CORO_SAVE_DEFFH)); |
|
|
1272 | newCONSTSUB (coro_state_stash, "SAVE_DEF", newSViv (CORO_SAVE_DEF)); |
|
|
1273 | newCONSTSUB (coro_state_stash, "SAVE_ALL", newSViv (CORO_SAVE_ALL)); |
1006 | |
1274 | |
1007 | main_mainstack = PL_mainstack; |
1275 | main_mainstack = PL_mainstack; |
|
|
1276 | main_top_env = PL_top_env; |
|
|
1277 | |
|
|
1278 | while (main_top_env->je_prev) |
|
|
1279 | main_top_env = main_top_env->je_prev; |
1008 | |
1280 | |
1009 | coroapi.ver = CORO_API_VERSION; |
1281 | coroapi.ver = CORO_API_VERSION; |
1010 | coroapi.transfer = api_transfer; |
1282 | coroapi.transfer = api_transfer; |
1011 | |
|
|
1012 | Newz (0, main_stack, 1, coro_stack); |
|
|
1013 | main_stack->idle_sp = (void *)-1; |
|
|
1014 | |
1283 | |
1015 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1284 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1016 | } |
1285 | } |
1017 | |
1286 | |
1018 | SV * |
1287 | SV * |
… | |
… | |
1023 | HV *hv; |
1292 | HV *hv; |
1024 | int i; |
1293 | int i; |
1025 | |
1294 | |
1026 | Newz (0, coro, 1, struct coro); |
1295 | Newz (0, coro, 1, struct coro); |
1027 | coro->args = newAV (); |
1296 | coro->args = newAV (); |
|
|
1297 | coro->save = CORO_SAVE_DEF; |
|
|
1298 | coro->flags = CF_NEW; |
1028 | |
1299 | |
|
|
1300 | if (coro_first) coro_first->prev = coro; |
|
|
1301 | coro->next = coro_first; |
|
|
1302 | coro_first = coro; |
|
|
1303 | |
1029 | hv = newHV (); |
1304 | coro->hv = hv = newHV (); |
1030 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1305 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1031 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1306 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1032 | |
1307 | |
1033 | for (i = 1; i < items; i++) |
1308 | for (i = 1; i < items; i++) |
1034 | av_push (coro->args, newSVsv (ST (i))); |
1309 | av_push (coro->args, newSVsv (ST (i))); |
1035 | |
|
|
1036 | coro->stack = main_stack; |
|
|
1037 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
|
|
1038 | /*coro->stack = 0;*/ |
|
|
1039 | } |
1310 | } |
1040 | OUTPUT: |
1311 | OUTPUT: |
|
|
1312 | RETVAL |
|
|
1313 | |
|
|
1314 | int |
|
|
1315 | save (SV *coro, int new_save = -1) |
|
|
1316 | CODE: |
|
|
1317 | RETVAL = api_save (coro, new_save); |
|
|
1318 | OUTPUT: |
|
|
1319 | RETVAL |
|
|
1320 | |
|
|
1321 | int |
|
|
1322 | save_also (SV *coro_sv, int save_also) |
|
|
1323 | CODE: |
|
|
1324 | { |
|
|
1325 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1326 | RETVAL = coro->save; |
|
|
1327 | coro->save |= save_also; |
|
|
1328 | } |
|
|
1329 | OUTPUT: |
1041 | RETVAL |
1330 | RETVAL |
1042 | |
1331 | |
1043 | void |
1332 | void |
1044 | _set_stacklevel (...) |
1333 | _set_stacklevel (...) |
1045 | ALIAS: |
1334 | ALIAS: |
1046 | Coro::State::transfer = 1 |
1335 | Coro::State::transfer = 1 |
1047 | Coro::schedule = 2 |
1336 | Coro::schedule = 2 |
1048 | Coro::cede = 3 |
1337 | Coro::cede = 3 |
1049 | Coro::Cont::yield = 4 |
1338 | Coro::cede_notself = 4 |
1050 | CODE: |
1339 | CODE: |
1051 | { |
1340 | { |
1052 | struct transfer_args ta; |
1341 | struct transfer_args ta; |
1053 | |
1342 | |
1054 | switch (ix) |
1343 | switch (ix) |
1055 | { |
1344 | { |
1056 | case 0: |
1345 | case 0: |
1057 | ta.prev = (struct coro *)INT2PTR (coro_stack *, SvIV (ST (0))); |
1346 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1058 | ta.next = 0; |
1347 | ta.next = 0; |
1059 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1060 | break; |
1348 | break; |
1061 | |
1349 | |
1062 | case 1: |
1350 | case 1: |
1063 | if (items != 3) |
1351 | if (items != 2) |
1064 | croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); |
1352 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1065 | |
1353 | |
1066 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
1354 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1067 | break; |
1355 | break; |
1068 | |
1356 | |
1069 | case 2: |
1357 | case 2: |
1070 | prepare_schedule (&ta); |
1358 | prepare_schedule (aTHX_ &ta); |
1071 | break; |
1359 | break; |
1072 | |
1360 | |
1073 | case 3: |
1361 | case 3: |
1074 | prepare_cede (&ta); |
1362 | prepare_cede (aTHX_ &ta); |
1075 | break; |
1363 | break; |
1076 | |
1364 | |
1077 | case 4: |
1365 | case 4: |
1078 | { |
1366 | if (!prepare_cede_notself (aTHX_ &ta)) |
1079 | SV *yieldstack; |
1367 | XSRETURN_EMPTY; |
1080 | SV *sv; |
|
|
1081 | AV *defav = GvAV (PL_defgv); |
|
|
1082 | |
1368 | |
1083 | yieldstack = *hv_fetch ( |
|
|
1084 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1085 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1086 | 0 |
|
|
1087 | ); |
|
|
1088 | |
|
|
1089 | /* set up @_ -- ugly */ |
|
|
1090 | av_clear (defav); |
|
|
1091 | av_fill (defav, items - 1); |
|
|
1092 | while (items--) |
|
|
1093 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1094 | |
|
|
1095 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1096 | ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1097 | ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1098 | ta.flags = 0; |
|
|
1099 | SvREFCNT_dec (sv); |
|
|
1100 | } |
|
|
1101 | break; |
1369 | break; |
1102 | |
|
|
1103 | } |
1370 | } |
1104 | |
1371 | |
|
|
1372 | BARRIER; |
1105 | TRANSFER (ta); |
1373 | TRANSFER (ta); |
1106 | } |
|
|
1107 | |
1374 | |
1108 | void |
1375 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
1109 | _clone_state_from (SV *dst, SV *src) |
1376 | XSRETURN_YES; |
|
|
1377 | } |
|
|
1378 | |
|
|
1379 | bool |
|
|
1380 | _destroy (SV *coro_sv) |
1110 | CODE: |
1381 | CODE: |
1111 | { |
1382 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1112 | struct coro *coro_src = SvSTATE (src); |
1383 | OUTPUT: |
1113 | |
1384 | RETVAL |
1114 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1115 | |
|
|
1116 | ++coro_src->refcnt; |
|
|
1117 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1118 | } |
|
|
1119 | |
|
|
1120 | void |
|
|
1121 | _nonlocal_goto (IV nextop) |
|
|
1122 | CODE: |
|
|
1123 | /* uuh, somebody will kill me again for this */ |
|
|
1124 | PL_op->op_next = INT2PTR (OP *, nextop); |
|
|
1125 | |
1385 | |
1126 | void |
1386 | void |
1127 | _exit (code) |
1387 | _exit (code) |
1128 | int code |
1388 | int code |
1129 | PROTOTYPE: $ |
1389 | PROTOTYPE: $ |
1130 | CODE: |
1390 | CODE: |
1131 | _exit (code); |
1391 | _exit (code); |
1132 | |
1392 | |
|
|
1393 | int |
|
|
1394 | cctx_stacksize (int new_stacksize = 0) |
|
|
1395 | CODE: |
|
|
1396 | RETVAL = coro_stacksize; |
|
|
1397 | if (new_stacksize) |
|
|
1398 | coro_stacksize = new_stacksize; |
|
|
1399 | OUTPUT: |
|
|
1400 | RETVAL |
|
|
1401 | |
|
|
1402 | int |
|
|
1403 | cctx_count () |
|
|
1404 | CODE: |
|
|
1405 | RETVAL = cctx_count; |
|
|
1406 | OUTPUT: |
|
|
1407 | RETVAL |
|
|
1408 | |
|
|
1409 | int |
|
|
1410 | cctx_idle () |
|
|
1411 | CODE: |
|
|
1412 | RETVAL = cctx_idle; |
|
|
1413 | OUTPUT: |
|
|
1414 | RETVAL |
|
|
1415 | |
|
|
1416 | void |
|
|
1417 | list () |
|
|
1418 | PPCODE: |
|
|
1419 | { |
|
|
1420 | struct coro *coro; |
|
|
1421 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1422 | if (coro->hv) |
|
|
1423 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1424 | } |
|
|
1425 | |
|
|
1426 | void |
|
|
1427 | call (Coro::State coro, SV *coderef) |
|
|
1428 | ALIAS: |
|
|
1429 | eval = 1 |
|
|
1430 | CODE: |
|
|
1431 | { |
|
|
1432 | if (coro->mainstack) |
|
|
1433 | { |
|
|
1434 | struct coro temp; |
|
|
1435 | Zero (&temp, 1, struct coro); |
|
|
1436 | temp.save = CORO_SAVE_ALL; |
|
|
1437 | |
|
|
1438 | if (!(coro->flags & CF_RUNNING)) |
|
|
1439 | { |
|
|
1440 | save_perl (aTHX_ &temp); |
|
|
1441 | load_perl (aTHX_ coro); |
|
|
1442 | } |
|
|
1443 | |
|
|
1444 | { |
|
|
1445 | dSP; |
|
|
1446 | ENTER; |
|
|
1447 | SAVETMPS; |
|
|
1448 | PUSHMARK (SP); |
|
|
1449 | PUTBACK; |
|
|
1450 | if (ix) |
|
|
1451 | eval_sv (coderef, 0); |
|
|
1452 | else |
|
|
1453 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1454 | SPAGAIN; |
|
|
1455 | FREETMPS; |
|
|
1456 | LEAVE; |
|
|
1457 | PUTBACK; |
|
|
1458 | } |
|
|
1459 | |
|
|
1460 | if (!(coro->flags & CF_RUNNING)) |
|
|
1461 | { |
|
|
1462 | save_perl (aTHX_ coro); |
|
|
1463 | load_perl (aTHX_ &temp); |
|
|
1464 | } |
|
|
1465 | } |
|
|
1466 | } |
|
|
1467 | |
|
|
1468 | SV * |
|
|
1469 | is_ready (Coro::State coro) |
|
|
1470 | PROTOTYPE: $ |
|
|
1471 | ALIAS: |
|
|
1472 | is_ready = CF_READY |
|
|
1473 | is_running = CF_RUNNING |
|
|
1474 | is_new = CF_NEW |
|
|
1475 | is_destroyed = CF_DESTROYED |
|
|
1476 | CODE: |
|
|
1477 | RETVAL = boolSV (coro->flags & ix); |
|
|
1478 | OUTPUT: |
|
|
1479 | RETVAL |
|
|
1480 | |
|
|
1481 | void |
|
|
1482 | trace (Coro::State coro, int enable = 0) |
|
|
1483 | CODE: |
|
|
1484 | if (enable) |
|
|
1485 | { |
|
|
1486 | if (coro->flags & CF_RUNNING) |
|
|
1487 | croak ("cannot enable tracing on running coroutine"); |
|
|
1488 | |
|
|
1489 | if (coro->cctx) |
|
|
1490 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1491 | |
|
|
1492 | coro->cctx = cctx_new (); |
|
|
1493 | coro->cctx->flags |= CC_TRACE; |
|
|
1494 | } |
|
|
1495 | else |
|
|
1496 | if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1497 | { |
|
|
1498 | coro->cctx->flags &= ~CC_TRACE; |
|
|
1499 | coro->cctx->flags |= CC_NOREUSE; |
|
|
1500 | } |
|
|
1501 | |
|
|
1502 | SV * |
|
|
1503 | has_stack (Coro::State coro) |
|
|
1504 | PROTOTYPE: $ |
|
|
1505 | CODE: |
|
|
1506 | RETVAL = boolSV (!!coro->cctx); |
|
|
1507 | OUTPUT: |
|
|
1508 | RETVAL |
|
|
1509 | |
|
|
1510 | IV |
|
|
1511 | rss (Coro::State coro) |
|
|
1512 | PROTOTYPE: $ |
|
|
1513 | CODE: |
|
|
1514 | RETVAL = coro_rss (coro); |
|
|
1515 | OUTPUT: |
|
|
1516 | RETVAL |
|
|
1517 | |
|
|
1518 | |
1133 | MODULE = Coro::State PACKAGE = Coro |
1519 | MODULE = Coro::State PACKAGE = Coro |
1134 | |
1520 | |
1135 | BOOT: |
1521 | BOOT: |
1136 | { |
1522 | { |
1137 | int i; |
1523 | int i; |
|
|
1524 | |
|
|
1525 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1526 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1527 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
|
|
1528 | |
|
|
1529 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1530 | SvREADONLY_on (coro_current); |
1138 | |
1531 | |
1139 | coro_stash = gv_stashpv ("Coro", TRUE); |
1532 | coro_stash = gv_stashpv ("Coro", TRUE); |
1140 | |
1533 | |
1141 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1534 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1142 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1535 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1143 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1536 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1144 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1537 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1145 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1538 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1146 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1539 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1147 | |
1540 | |
1148 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1149 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1150 | |
|
|
1151 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1541 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1152 | coro_ready[i] = newAV (); |
1542 | coro_ready[i] = newAV (); |
1153 | |
1543 | |
1154 | { |
1544 | { |
1155 | SV *sv = perl_get_sv("Coro::API", 1); |
1545 | SV *sv = perl_get_sv("Coro::API", 1); |
1156 | |
1546 | |
1157 | coroapi.schedule = api_schedule; |
1547 | coroapi.schedule = api_schedule; |
|
|
1548 | coroapi.save = api_save; |
1158 | coroapi.cede = api_cede; |
1549 | coroapi.cede = api_cede; |
|
|
1550 | coroapi.cede_notself = api_cede_notself; |
1159 | coroapi.ready = api_ready; |
1551 | coroapi.ready = api_ready; |
|
|
1552 | coroapi.is_ready = api_is_ready; |
1160 | coroapi.nready = &coro_nready; |
1553 | coroapi.nready = &coro_nready; |
1161 | coroapi.current = coro_current; |
1554 | coroapi.current = coro_current; |
1162 | |
1555 | |
1163 | GCoroAPI = &coroapi; |
1556 | GCoroAPI = &coroapi; |
1164 | sv_setiv (sv, (IV)&coroapi); |
1557 | sv_setiv (sv, (IV)&coroapi); |
1165 | SvREADONLY_on (sv); |
1558 | SvREADONLY_on (sv); |
1166 | } |
1559 | } |
1167 | } |
1560 | } |
|
|
1561 | |
|
|
1562 | void |
|
|
1563 | _set_current (SV *current) |
|
|
1564 | PROTOTYPE: $ |
|
|
1565 | CODE: |
|
|
1566 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
1567 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
1168 | |
1568 | |
1169 | int |
1569 | int |
1170 | prio (Coro::State coro, int newprio = 0) |
1570 | prio (Coro::State coro, int newprio = 0) |
1171 | ALIAS: |
1571 | ALIAS: |
1172 | nice = 1 |
1572 | nice = 1 |
… | |
… | |
1175 | RETVAL = coro->prio; |
1575 | RETVAL = coro->prio; |
1176 | |
1576 | |
1177 | if (items > 1) |
1577 | if (items > 1) |
1178 | { |
1578 | { |
1179 | if (ix) |
1579 | if (ix) |
1180 | newprio += coro->prio; |
1580 | newprio = coro->prio - newprio; |
1181 | |
1581 | |
1182 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1582 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1183 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1583 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1184 | |
1584 | |
1185 | coro->prio = newprio; |
1585 | coro->prio = newprio; |
1186 | } |
1586 | } |
1187 | } |
1587 | } |
|
|
1588 | OUTPUT: |
|
|
1589 | RETVAL |
1188 | |
1590 | |
1189 | void |
1591 | SV * |
1190 | ready (SV *self) |
1592 | ready (SV *self) |
1191 | PROTOTYPE: $ |
1593 | PROTOTYPE: $ |
1192 | CODE: |
1594 | CODE: |
1193 | api_ready (self); |
1595 | RETVAL = boolSV (api_ready (self)); |
|
|
1596 | OUTPUT: |
|
|
1597 | RETVAL |
1194 | |
1598 | |
1195 | int |
1599 | int |
1196 | nready (...) |
1600 | nready (...) |
1197 | PROTOTYPE: |
1601 | PROTOTYPE: |
1198 | CODE: |
1602 | CODE: |
1199 | RETVAL = coro_nready; |
1603 | RETVAL = coro_nready; |
1200 | OUTPUT: |
1604 | OUTPUT: |
1201 | RETVAL |
1605 | RETVAL |
1202 | |
1606 | |
|
|
1607 | # for async_pool speedup |
|
|
1608 | void |
|
|
1609 | _pool_1 (SV *cb) |
|
|
1610 | CODE: |
|
|
1611 | { |
|
|
1612 | int i, len; |
|
|
1613 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1614 | AV *defav = GvAV (PL_defgv); |
|
|
1615 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1616 | AV *invoke_av; |
|
|
1617 | |
|
|
1618 | if (!invoke) |
|
|
1619 | croak ("\3terminate\2\n"); |
|
|
1620 | |
|
|
1621 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1622 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1623 | |
|
|
1624 | invoke_av = (AV *)SvRV (invoke); |
|
|
1625 | len = av_len (invoke_av); |
|
|
1626 | |
|
|
1627 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1628 | |
|
|
1629 | if (len > 0) |
|
|
1630 | { |
|
|
1631 | av_fill (defav, len - 1); |
|
|
1632 | for (i = 0; i < len; ++i) |
|
|
1633 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1634 | } |
|
|
1635 | |
|
|
1636 | SvREFCNT_dec (invoke); |
|
|
1637 | } |
|
|
1638 | |
|
|
1639 | void |
|
|
1640 | _pool_2 (SV *cb) |
|
|
1641 | CODE: |
|
|
1642 | { |
|
|
1643 | struct coro *coro = SvSTATE (coro_current); |
|
|
1644 | |
|
|
1645 | sv_setsv (cb, &PL_sv_undef); |
|
|
1646 | |
|
|
1647 | if (coro_rss (coro) > SvIV (sv_pool_rss) |
|
|
1648 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1649 | croak ("\3terminate\2\n"); |
|
|
1650 | |
|
|
1651 | av_clear (GvAV (PL_defgv)); |
|
|
1652 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1653 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1654 | coro->save = CORO_SAVE_DEF; |
|
|
1655 | coro->prio = 0; |
|
|
1656 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1657 | } |
|
|
1658 | |
|
|
1659 | |
1203 | MODULE = Coro::State PACKAGE = Coro::AIO |
1660 | MODULE = Coro::State PACKAGE = Coro::AIO |
1204 | |
1661 | |
1205 | SV * |
1662 | SV * |
1206 | _get_state () |
1663 | _get_state () |
1207 | CODE: |
1664 | CODE: |
1208 | { |
1665 | { |
1209 | struct { |
1666 | struct io_state *data; |
1210 | int errorno; |
|
|
1211 | int laststype; |
|
|
1212 | int laststatval; |
|
|
1213 | Stat_t statcache; |
|
|
1214 | } data; |
|
|
1215 | |
1667 | |
|
|
1668 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1669 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1670 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1671 | SvPOK_only (RETVAL); |
|
|
1672 | |
1216 | data.errorno = errno; |
1673 | data->errorno = errno; |
1217 | data.laststype = PL_laststype; |
1674 | data->laststype = PL_laststype; |
1218 | data.laststatval = PL_laststatval; |
1675 | data->laststatval = PL_laststatval; |
1219 | data.statcache = PL_statcache; |
1676 | data->statcache = PL_statcache; |
1220 | |
|
|
1221 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1222 | } |
1677 | } |
1223 | OUTPUT: |
1678 | OUTPUT: |
1224 | RETVAL |
1679 | RETVAL |
1225 | |
1680 | |
1226 | void |
1681 | void |
1227 | _set_state (char *data_) |
1682 | _set_state (char *data_) |
1228 | PROTOTYPE: $ |
1683 | PROTOTYPE: $ |
1229 | CODE: |
1684 | CODE: |
1230 | { |
1685 | { |
1231 | struct { |
1686 | struct io_state *data = (void *)data_; |
1232 | int errorno; |
|
|
1233 | int laststype; |
|
|
1234 | int laststatval; |
|
|
1235 | Stat_t statcache; |
|
|
1236 | } *data = (void *)data_; |
|
|
1237 | |
1687 | |
1238 | errno = data->errorno; |
1688 | errno = data->errorno; |
1239 | PL_laststype = data->laststype; |
1689 | PL_laststype = data->laststype; |
1240 | PL_laststatval = data->laststatval; |
1690 | PL_laststatval = data->laststatval; |
1241 | PL_statcache = data->statcache; |
1691 | PL_statcache = data->statcache; |
1242 | } |
1692 | } |
|
|
1693 | |