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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 |
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79 | |
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80 | /* 5.8.8 */ |
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81 | #ifndef GV_NOTQUAL |
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82 | # define GV_NOTQUAL 0 |
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83 | #endif |
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84 | #ifndef newSV |
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85 | # define newSV(l) NEWSV(0,l) |
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86 | #endif |
34 | |
87 | |
35 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
88 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
36 | # undef STACKGUARD |
89 | # 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 |
90 | #endif |
53 | # include <limits.h> |
91 | |
54 | # ifndef PAGESIZE |
92 | #ifndef CORO_STACKGUARD |
55 | # define PAGESIZE pagesize |
93 | # 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 |
94 | #endif |
61 | #endif |
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62 | |
95 | |
63 | /* The next macro should declare a variable stacklevel that contains and approximation |
96 | /* prefer perl internal functions over our own? */ |
64 | * to the current C stack pointer. Its property is that it changes with each call |
97 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
65 | * and should be unique. */ |
98 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
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99 | #endif |
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100 | |
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101 | /* The next macros try to return the current stack pointer, in an as |
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102 | * portable way as possible. */ |
66 | #define dSTACKLEVEL int stacklevel |
103 | #define dSTACKLEVEL volatile char stacklevel |
67 | #define STACKLEVEL ((void *)&stacklevel) |
104 | #define STACKLEVEL ((void *)&stacklevel) |
68 | |
105 | |
69 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
106 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
70 | |
107 | |
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108 | #if __GNUC__ >= 3 |
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109 | # define attribute(x) __attribute__(x) |
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110 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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111 | #else |
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112 | # define attribute(x) |
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113 | # define BARRIER |
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114 | #endif |
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115 | |
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116 | #define NOINLINE attribute ((noinline)) |
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117 | |
71 | #include "CoroAPI.h" |
118 | #include "CoroAPI.h" |
72 | |
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73 | #define TRANSFER_SET_STACKLEVEL 0x8bfbfbfb /* magic cookie */ |
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74 | |
119 | |
75 | #ifdef USE_ITHREADS |
120 | #ifdef USE_ITHREADS |
76 | static perl_mutex coro_mutex; |
121 | static perl_mutex coro_mutex; |
77 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
122 | # define LOCK do { MUTEX_LOCK (&coro_mutex); } while (0) |
78 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
123 | # define UNLOCK do { MUTEX_UNLOCK (&coro_mutex); } while (0) |
79 | #else |
124 | #else |
80 | # define LOCK (void)0 |
125 | # define LOCK (void)0 |
81 | # define UNLOCK (void)0 |
126 | # define UNLOCK (void)0 |
82 | #endif |
127 | #endif |
83 | |
128 | |
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129 | /* helper storage struct for Coro::AIO */ |
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130 | struct io_state |
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131 | { |
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132 | int errorno; |
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133 | I32 laststype; |
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134 | int laststatval; |
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135 | Stat_t statcache; |
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136 | }; |
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137 | |
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138 | static size_t coro_stacksize = CORO_STACKSIZE; |
84 | static struct CoroAPI coroapi; |
139 | static struct CoroAPI coroapi; |
85 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
140 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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141 | static JMPENV *main_top_env; |
86 | static HV *coro_state_stash, *coro_stash; |
142 | static HV *coro_state_stash, *coro_stash; |
87 | static SV *coro_mortal; /* will be freed after next transfer */ |
143 | static SV *coro_mortal; /* will be freed after next transfer */ |
88 | |
144 | |
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145 | static GV *irsgv; /* $/ */ |
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146 | static GV *stdoutgv; /* *STDOUT */ |
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147 | |
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148 | /* async_pool helper stuff */ |
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149 | static SV *sv_pool_rss; |
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150 | static SV *sv_pool_size; |
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151 | static AV *av_async_pool; |
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152 | |
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153 | static struct coro_cctx *cctx_first; |
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154 | static int cctx_count, cctx_idle; |
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155 | |
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156 | enum { |
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157 | CC_MAPPED = 0x01, |
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158 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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159 | CC_TRACE = 0x04, |
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160 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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161 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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162 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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163 | }; |
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164 | |
89 | /* this is a structure representing a c-level coroutine */ |
165 | /* this is a structure representing a c-level coroutine */ |
90 | typedef struct coro_stack { |
166 | typedef struct coro_cctx { |
91 | struct coro_stack *next; |
167 | struct coro_cctx *next; |
92 | |
168 | |
93 | /* the stack */ |
169 | /* the stack */ |
94 | void *sptr; |
170 | void *sptr; |
95 | long ssize; /* positive == mmap, otherwise malloc */ |
171 | size_t ssize; |
96 | |
172 | |
97 | /* cpu state */ |
173 | /* cpu state */ |
98 | void *idle_sp; /* original stacklevel when coroutine was created */ |
174 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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175 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
99 | JMPENV *top_env; |
176 | JMPENV *top_env; |
100 | coro_context cctx; |
177 | coro_context cctx; |
101 | } coro_stack; |
178 | |
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179 | #if CORO_USE_VALGRIND |
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180 | int valgrind_id; |
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181 | #endif |
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182 | unsigned char flags; |
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183 | } coro_cctx; |
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184 | |
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185 | enum { |
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186 | CF_RUNNING = 0x0001, /* coroutine is running */ |
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187 | CF_READY = 0x0002, /* coroutine is ready */ |
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188 | CF_NEW = 0x0004, /* has never been switched to */ |
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189 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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190 | }; |
102 | |
191 | |
103 | /* this is a structure representing a perl-level coroutine */ |
192 | /* this is a structure representing a perl-level coroutine */ |
104 | struct coro { |
193 | struct coro { |
105 | /* the c coroutine allocated to this perl coroutine, if any */ |
194 | /* the c coroutine allocated to this perl coroutine, if any */ |
106 | coro_stack *stack; |
195 | coro_cctx *cctx; |
107 | |
196 | |
108 | /* data associated with this coroutine (initial args) */ |
197 | /* data associated with this coroutine (initial args) */ |
109 | AV *args; |
198 | AV *args; |
110 | int refcnt; |
199 | int refcnt; |
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200 | int flags; /* CF_ flags */ |
111 | |
201 | |
112 | /* optionally saved, might be zero */ |
202 | /* optionally saved, might be zero */ |
113 | AV *defav; |
203 | AV *defav; /* @_ */ |
114 | SV *defsv; |
204 | SV *defsv; /* $_ */ |
115 | SV *errsv; |
205 | SV *errsv; /* $@ */ |
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206 | SV *deffh; /* default filehandle */ |
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207 | SV *irssv; /* $/ */ |
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208 | SV *irssv_sv; /* real $/ cache */ |
116 | |
209 | |
117 | /* saved global state not related to stacks */ |
210 | #define VAR(name,type) type name; |
118 | U8 dowarn; |
211 | # include "state.h" |
119 | I32 in_eval; |
212 | #undef VAR |
120 | |
213 | |
121 | /* the stacks and related info (callchain etc..) */ |
214 | /* statistics */ |
122 | PERL_SI *curstackinfo; |
215 | int usecount; /* number of transfers to this coro */ |
123 | AV *curstack; |
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124 | AV *mainstack; |
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125 | SV **stack_sp; |
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126 | OP *op; |
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127 | SV **curpad; |
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128 | AV *comppad; |
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129 | CV *compcv; |
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130 | SV **stack_base; |
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131 | SV **stack_max; |
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132 | SV **tmps_stack; |
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133 | I32 tmps_floor; |
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134 | I32 tmps_ix; |
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135 | I32 tmps_max; |
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136 | I32 *markstack; |
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137 | I32 *markstack_ptr; |
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138 | I32 *markstack_max; |
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139 | I32 *scopestack; |
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140 | I32 scopestack_ix; |
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141 | I32 scopestack_max; |
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142 | ANY *savestack; |
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143 | I32 savestack_ix; |
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144 | I32 savestack_max; |
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145 | OP **retstack; |
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146 | I32 retstack_ix; |
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147 | I32 retstack_max; |
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148 | PMOP *curpm; |
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149 | COP *curcop; |
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150 | |
216 | |
151 | /* coro process data */ |
217 | /* coro process data */ |
152 | int prio; |
218 | int prio; |
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219 | //SV *throw; |
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220 | |
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221 | /* async_pool */ |
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222 | SV *saved_deffh; |
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223 | |
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224 | /* linked list */ |
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225 | struct coro *next, *prev; |
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226 | HV *hv; /* the perl hash associated with this coro, if any */ |
153 | }; |
227 | }; |
154 | |
228 | |
155 | typedef struct coro *Coro__State; |
229 | typedef struct coro *Coro__State; |
156 | typedef struct coro *Coro__State_or_hashref; |
230 | typedef struct coro *Coro__State_or_hashref; |
157 | |
231 | |
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232 | /** Coro ********************************************************************/ |
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233 | |
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234 | #define PRIO_MAX 3 |
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235 | #define PRIO_HIGH 1 |
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236 | #define PRIO_NORMAL 0 |
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237 | #define PRIO_LOW -1 |
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238 | #define PRIO_IDLE -3 |
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239 | #define PRIO_MIN -4 |
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240 | |
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241 | /* for Coro.pm */ |
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242 | static SV *coro_current; |
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243 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
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244 | static int coro_nready; |
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245 | static struct coro *coro_first; |
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246 | |
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247 | /** lowlevel stuff **********************************************************/ |
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248 | |
158 | static AV * |
249 | static AV * |
159 | coro_clone_padlist (pTHX_ CV *cv) |
250 | coro_clone_padlist (pTHX_ CV *cv) |
160 | { |
251 | { |
161 | AV *padlist = CvPADLIST (cv); |
252 | AV *padlist = CvPADLIST (cv); |
162 | AV *newpadlist, *newpad; |
253 | AV *newpadlist, *newpad; |
163 | |
254 | |
164 | newpadlist = newAV (); |
255 | newpadlist = newAV (); |
165 | AvREAL_off (newpadlist); |
256 | AvREAL_off (newpadlist); |
166 | #if PERL_VERSION < 9 |
257 | #if PERL_VERSION_ATLEAST (5,9,0) |
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258 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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259 | #else |
167 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
260 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
168 | #else |
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169 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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170 | #endif |
261 | #endif |
171 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
262 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
172 | --AvFILLp (padlist); |
263 | --AvFILLp (padlist); |
173 | |
264 | |
174 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
265 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
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218 | |
309 | |
219 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
310 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
220 | |
311 | |
221 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
312 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
222 | |
313 | |
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314 | #define CORO_MAGIC(cv) \ |
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315 | SvMAGIC (cv) \ |
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316 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
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317 | ? SvMAGIC (cv) \ |
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318 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
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319 | : 0 |
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320 | |
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321 | static struct coro * |
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322 | SvSTATE_ (pTHX_ SV *coro) |
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323 | { |
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324 | HV *stash; |
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325 | MAGIC *mg; |
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326 | |
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327 | if (SvROK (coro)) |
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328 | coro = SvRV (coro); |
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329 | |
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330 | if (SvTYPE (coro) != SVt_PVHV) |
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331 | croak ("Coro::State object required"); |
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332 | |
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333 | stash = SvSTASH (coro); |
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334 | if (stash != coro_stash && stash != coro_state_stash) |
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335 | { |
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336 | /* very slow, but rare, check */ |
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337 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
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338 | croak ("Coro::State object required"); |
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339 | } |
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340 | |
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341 | mg = CORO_MAGIC (coro); |
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342 | return (struct coro *)mg->mg_ptr; |
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343 | } |
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344 | |
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345 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
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346 | |
223 | /* the next two functions merely cache the padlists */ |
347 | /* the next two functions merely cache the padlists */ |
224 | static void |
348 | static void |
225 | get_padlist (pTHX_ CV *cv) |
349 | get_padlist (pTHX_ CV *cv) |
226 | { |
350 | { |
227 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
351 | MAGIC *mg = CORO_MAGIC (cv); |
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352 | AV *av; |
228 | |
353 | |
229 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
354 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
230 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
355 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
231 | else |
356 | else |
232 | { |
357 | { |
233 | #if 0 |
358 | #if CORO_PREFER_PERL_FUNCTIONS |
234 | /* this should work - but it doesn't :( */ |
359 | /* this is probably cleaner, but also slower? */ |
235 | CV *cp = Perl_cv_clone (aTHX_ cv); |
360 | CV *cp = Perl_cv_clone (cv); |
236 | CvPADLIST (cv) = CvPADLIST (cp); |
361 | CvPADLIST (cv) = CvPADLIST (cp); |
237 | CvPADLIST (cp) = 0; |
362 | CvPADLIST (cp) = 0; |
238 | SvREFCNT_dec (cp); |
363 | SvREFCNT_dec (cp); |
239 | #else |
364 | #else |
240 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
365 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
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243 | } |
368 | } |
244 | |
369 | |
245 | static void |
370 | static void |
246 | put_padlist (pTHX_ CV *cv) |
371 | put_padlist (pTHX_ CV *cv) |
247 | { |
372 | { |
248 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
373 | MAGIC *mg = CORO_MAGIC (cv); |
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374 | AV *av; |
249 | |
375 | |
250 | if (!mg) |
376 | if (!mg) |
251 | { |
377 | { |
252 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
378 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
253 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
379 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
254 | mg->mg_virtual = &vtbl_coro; |
380 | mg->mg_virtual = &vtbl_coro; |
255 | mg->mg_obj = (SV *)newAV (); |
381 | mg->mg_obj = (SV *)newAV (); |
256 | } |
382 | } |
257 | |
383 | |
258 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
384 | av = (AV *)mg->mg_obj; |
259 | } |
|
|
260 | |
385 | |
261 | #define SB do { |
386 | if (AvFILLp (av) >= AvMAX (av)) |
262 | #define SE } while (0) |
387 | av_extend (av, AvMAX (av) + 1); |
263 | |
388 | |
264 | #define LOAD(state) load_state(aTHX_ (state)); |
389 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
265 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
390 | } |
266 | |
391 | |
267 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
392 | /** load & save, init *******************************************************/ |
268 | |
393 | |
269 | static void |
394 | static void |
270 | load_state(pTHX_ Coro__State c) |
395 | load_perl (pTHX_ Coro__State c) |
271 | { |
396 | { |
272 | PL_dowarn = c->dowarn; |
397 | #define VAR(name,type) PL_ ## name = c->name; |
273 | PL_in_eval = c->in_eval; |
398 | # include "state.h" |
|
|
399 | #undef VAR |
274 | |
400 | |
275 | PL_curstackinfo = c->curstackinfo; |
401 | GvSV (PL_defgv) = c->defsv; |
276 | PL_curstack = c->curstack; |
402 | GvAV (PL_defgv) = c->defav; |
277 | PL_mainstack = c->mainstack; |
403 | GvSV (PL_errgv) = c->errsv; |
278 | PL_stack_sp = c->stack_sp; |
404 | GvSV (irsgv) = c->irssv_sv; |
279 | PL_op = c->op; |
|
|
280 | PL_curpad = c->curpad; |
|
|
281 | PL_comppad = c->comppad; |
|
|
282 | PL_compcv = c->compcv; |
|
|
283 | PL_stack_base = c->stack_base; |
|
|
284 | PL_stack_max = c->stack_max; |
|
|
285 | PL_tmps_stack = c->tmps_stack; |
|
|
286 | PL_tmps_floor = c->tmps_floor; |
|
|
287 | 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 | 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 | PL_savestack_max = c->savestack_max; |
|
|
298 | #if PERL_VERSION < 9 |
|
|
299 | PL_retstack = c->retstack; |
|
|
300 | PL_retstack_ix = c->retstack_ix; |
|
|
301 | PL_retstack_max = c->retstack_max; |
|
|
302 | #endif |
|
|
303 | PL_curpm = c->curpm; |
|
|
304 | PL_curcop = c->curcop; |
|
|
305 | |
|
|
306 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
|
|
307 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
|
|
308 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
309 | |
405 | |
310 | { |
406 | { |
311 | dSP; |
407 | dSP; |
312 | CV *cv; |
408 | CV *cv; |
313 | |
409 | |
314 | /* now do the ugly restore mess */ |
410 | /* now do the ugly restore mess */ |
315 | while ((cv = (CV *)POPs)) |
411 | while ((cv = (CV *)POPs)) |
316 | { |
412 | { |
317 | AV *padlist = (AV *)POPs; |
|
|
318 | |
|
|
319 | if (padlist) |
|
|
320 | { |
|
|
321 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
413 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
322 | CvPADLIST(cv) = padlist; |
414 | CvDEPTH (cv) = PTR2IV (POPs); |
323 | } |
415 | CvPADLIST (cv) = (AV *)POPs; |
324 | |
|
|
325 | ++CvDEPTH(cv); |
|
|
326 | } |
416 | } |
327 | |
417 | |
328 | PUTBACK; |
418 | PUTBACK; |
329 | } |
419 | } |
330 | } |
420 | } |
331 | |
421 | |
332 | static void |
422 | static void |
333 | save_state(pTHX_ Coro__State c, int flags) |
423 | save_perl (pTHX_ Coro__State c) |
334 | { |
424 | { |
335 | { |
425 | { |
336 | dSP; |
426 | dSP; |
337 | I32 cxix = cxstack_ix; |
427 | I32 cxix = cxstack_ix; |
338 | PERL_CONTEXT *ccstk = cxstack; |
428 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
341 | /* |
431 | /* |
342 | * the worst thing you can imagine happens first - we have to save |
432 | * the worst thing you can imagine happens first - we have to save |
343 | * (and reinitialize) all cv's in the whole callchain :( |
433 | * (and reinitialize) all cv's in the whole callchain :( |
344 | */ |
434 | */ |
345 | |
435 | |
346 | PUSHs (Nullsv); |
436 | XPUSHs (Nullsv); |
347 | /* this loop was inspired by pp_caller */ |
437 | /* this loop was inspired by pp_caller */ |
348 | for (;;) |
438 | for (;;) |
349 | { |
439 | { |
350 | while (cxix >= 0) |
440 | while (cxix >= 0) |
351 | { |
441 | { |
352 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
442 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
353 | |
443 | |
354 | if (CxTYPE(cx) == CXt_SUB) |
444 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
355 | { |
445 | { |
356 | CV *cv = cx->blk_sub.cv; |
446 | CV *cv = cx->blk_sub.cv; |
|
|
447 | |
357 | if (CvDEPTH(cv)) |
448 | if (CvDEPTH (cv)) |
358 | { |
449 | { |
359 | EXTEND (SP, CvDEPTH(cv)*2); |
450 | EXTEND (SP, 3); |
360 | |
|
|
361 | while (--CvDEPTH(cv)) |
|
|
362 | { |
|
|
363 | /* this tells the restore code to increment CvDEPTH */ |
|
|
364 | PUSHs (Nullsv); |
|
|
365 | PUSHs ((SV *)cv); |
|
|
366 | } |
|
|
367 | |
|
|
368 | PUSHs ((SV *)CvPADLIST(cv)); |
451 | PUSHs ((SV *)CvPADLIST (cv)); |
|
|
452 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
369 | PUSHs ((SV *)cv); |
453 | PUSHs ((SV *)cv); |
370 | |
454 | |
|
|
455 | CvDEPTH (cv) = 0; |
371 | get_padlist (aTHX_ cv); |
456 | get_padlist (aTHX_ cv); |
372 | } |
457 | } |
373 | } |
458 | } |
374 | #ifdef CXt_FORMAT |
|
|
375 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
376 | { |
|
|
377 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
378 | /* my bold guess is as a simple, plain sub... */ |
|
|
379 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
380 | } |
|
|
381 | #endif |
|
|
382 | } |
459 | } |
383 | |
460 | |
384 | if (top_si->si_type == PERLSI_MAIN) |
461 | if (top_si->si_type == PERLSI_MAIN) |
385 | break; |
462 | break; |
386 | |
463 | |
387 | top_si = top_si->si_prev; |
464 | top_si = top_si->si_prev; |
388 | ccstk = top_si->si_cxstack; |
465 | ccstk = top_si->si_cxstack; |
389 | cxix = top_si->si_cxix; |
466 | cxix = top_si->si_cxix; |
390 | } |
467 | } |
391 | |
468 | |
392 | PUTBACK; |
469 | PUTBACK; |
393 | } |
470 | } |
394 | |
471 | |
395 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
472 | c->defav = GvAV (PL_defgv); |
396 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
473 | c->defsv = DEFSV; |
397 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
474 | c->errsv = ERRSV; |
|
|
475 | c->irssv_sv = GvSV (irsgv); |
398 | |
476 | |
399 | c->dowarn = PL_dowarn; |
477 | #define VAR(name,type)c->name = PL_ ## name; |
400 | c->in_eval = PL_in_eval; |
478 | # include "state.h" |
401 | |
479 | #undef VAR |
402 | c->curstackinfo = PL_curstackinfo; |
|
|
403 | c->curstack = PL_curstack; |
|
|
404 | c->mainstack = PL_mainstack; |
|
|
405 | c->stack_sp = PL_stack_sp; |
|
|
406 | c->op = PL_op; |
|
|
407 | c->curpad = PL_curpad; |
|
|
408 | c->comppad = PL_comppad; |
|
|
409 | c->compcv = PL_compcv; |
|
|
410 | c->stack_base = PL_stack_base; |
|
|
411 | c->stack_max = PL_stack_max; |
|
|
412 | c->tmps_stack = PL_tmps_stack; |
|
|
413 | c->tmps_floor = PL_tmps_floor; |
|
|
414 | c->tmps_ix = PL_tmps_ix; |
|
|
415 | c->tmps_max = PL_tmps_max; |
|
|
416 | c->markstack = PL_markstack; |
|
|
417 | c->markstack_ptr = PL_markstack_ptr; |
|
|
418 | c->markstack_max = PL_markstack_max; |
|
|
419 | c->scopestack = PL_scopestack; |
|
|
420 | c->scopestack_ix = PL_scopestack_ix; |
|
|
421 | c->scopestack_max = PL_scopestack_max; |
|
|
422 | c->savestack = PL_savestack; |
|
|
423 | c->savestack_ix = PL_savestack_ix; |
|
|
424 | c->savestack_max = PL_savestack_max; |
|
|
425 | #if PERL_VERSION < 9 |
|
|
426 | c->retstack = PL_retstack; |
|
|
427 | c->retstack_ix = PL_retstack_ix; |
|
|
428 | c->retstack_max = PL_retstack_max; |
|
|
429 | #endif |
|
|
430 | c->curpm = PL_curpm; |
|
|
431 | c->curcop = PL_curcop; |
|
|
432 | } |
480 | } |
433 | |
481 | |
434 | /* |
482 | /* |
435 | * allocate various perl stacks. This is an exact copy |
483 | * allocate various perl stacks. This is an exact copy |
436 | * of perl.c:init_stacks, except that it uses less memory |
484 | * of perl.c:init_stacks, except that it uses less memory |
437 | * on the (sometimes correct) assumption that coroutines do |
485 | * on the (sometimes correct) assumption that coroutines do |
438 | * not usually need a lot of stackspace. |
486 | * not usually need a lot of stackspace. |
439 | */ |
487 | */ |
|
|
488 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
489 | # define coro_init_stacks init_stacks |
|
|
490 | #else |
440 | static void |
491 | static void |
441 | coro_init_stacks (pTHX) |
492 | coro_init_stacks (pTHX) |
442 | { |
493 | { |
443 | LOCK; |
494 | PL_curstackinfo = new_stackinfo(64, 6); |
444 | |
|
|
445 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
|
|
446 | PL_curstackinfo->si_type = PERLSI_MAIN; |
495 | PL_curstackinfo->si_type = PERLSI_MAIN; |
447 | PL_curstack = PL_curstackinfo->si_stack; |
496 | PL_curstack = PL_curstackinfo->si_stack; |
448 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
497 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
449 | |
498 | |
450 | PL_stack_base = AvARRAY(PL_curstack); |
499 | PL_stack_base = AvARRAY(PL_curstack); |
451 | PL_stack_sp = PL_stack_base; |
500 | PL_stack_sp = PL_stack_base; |
452 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
501 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
453 | |
502 | |
454 | New(50,PL_tmps_stack,96,SV*); |
503 | New(50,PL_tmps_stack,64,SV*); |
455 | PL_tmps_floor = -1; |
504 | PL_tmps_floor = -1; |
456 | PL_tmps_ix = -1; |
505 | PL_tmps_ix = -1; |
457 | PL_tmps_max = 96; |
506 | PL_tmps_max = 64; |
458 | |
507 | |
459 | New(54,PL_markstack,16,I32); |
508 | New(54,PL_markstack,16,I32); |
460 | PL_markstack_ptr = PL_markstack; |
509 | PL_markstack_ptr = PL_markstack; |
461 | PL_markstack_max = PL_markstack + 16; |
510 | PL_markstack_max = PL_markstack + 16; |
462 | |
511 | |
… | |
… | |
466 | |
515 | |
467 | New(54,PL_scopestack,16,I32); |
516 | New(54,PL_scopestack,16,I32); |
468 | PL_scopestack_ix = 0; |
517 | PL_scopestack_ix = 0; |
469 | PL_scopestack_max = 16; |
518 | PL_scopestack_max = 16; |
470 | |
519 | |
471 | New(54,PL_savestack,96,ANY); |
520 | New(54,PL_savestack,64,ANY); |
472 | PL_savestack_ix = 0; |
521 | PL_savestack_ix = 0; |
473 | PL_savestack_max = 96; |
522 | PL_savestack_max = 64; |
474 | |
523 | |
475 | #if PERL_VERSION < 9 |
524 | #if !PERL_VERSION_ATLEAST (5,9,0) |
476 | New(54,PL_retstack,8,OP*); |
525 | New(54,PL_retstack,4,OP*); |
477 | PL_retstack_ix = 0; |
526 | PL_retstack_ix = 0; |
478 | PL_retstack_max = 8; |
527 | PL_retstack_max = 4; |
479 | #endif |
528 | #endif |
480 | |
|
|
481 | UNLOCK; |
|
|
482 | } |
529 | } |
|
|
530 | #endif |
483 | |
531 | |
484 | /* |
532 | /* |
485 | * destroy the stacks, the callchain etc... |
533 | * destroy the stacks, the callchain etc... |
486 | */ |
534 | */ |
487 | static void |
535 | static void |
488 | destroy_stacks(pTHX) |
536 | coro_destroy_stacks (pTHX) |
489 | { |
537 | { |
490 | if (!IN_DESTRUCT) |
|
|
491 | { |
|
|
492 | /* is this ugly, I ask? */ |
|
|
493 | LEAVE_SCOPE (0); |
|
|
494 | |
|
|
495 | /* sure it is, but more important: is it correct?? :/ */ |
|
|
496 | FREETMPS; |
|
|
497 | |
|
|
498 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
|
|
499 | } |
|
|
500 | |
|
|
501 | while (PL_curstackinfo->si_next) |
538 | while (PL_curstackinfo->si_next) |
502 | PL_curstackinfo = PL_curstackinfo->si_next; |
539 | PL_curstackinfo = PL_curstackinfo->si_next; |
503 | |
540 | |
504 | while (PL_curstackinfo) |
541 | while (PL_curstackinfo) |
505 | { |
542 | { |
506 | PERL_SI *p = PL_curstackinfo->si_prev; |
543 | PERL_SI *p = PL_curstackinfo->si_prev; |
507 | |
544 | |
508 | { /*D*//*remove*/ |
|
|
509 | dSP; |
|
|
510 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
511 | PUTBACK; /* possibly superfluous */ |
|
|
512 | } |
|
|
513 | |
|
|
514 | if (!IN_DESTRUCT) |
545 | if (!IN_DESTRUCT) |
515 | { |
|
|
516 | dounwind (-1);/*D*//*remove*/ |
|
|
517 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
546 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
518 | } |
|
|
519 | |
547 | |
520 | Safefree (PL_curstackinfo->si_cxstack); |
548 | Safefree (PL_curstackinfo->si_cxstack); |
521 | Safefree (PL_curstackinfo); |
549 | Safefree (PL_curstackinfo); |
522 | PL_curstackinfo = p; |
550 | PL_curstackinfo = p; |
523 | } |
551 | } |
524 | |
552 | |
525 | Safefree (PL_tmps_stack); |
553 | Safefree (PL_tmps_stack); |
526 | Safefree (PL_markstack); |
554 | Safefree (PL_markstack); |
527 | Safefree (PL_scopestack); |
555 | Safefree (PL_scopestack); |
528 | Safefree (PL_savestack); |
556 | Safefree (PL_savestack); |
529 | #if PERL_VERSION < 9 |
557 | #if !PERL_VERSION_ATLEAST (5,9,0) |
530 | Safefree (PL_retstack); |
558 | Safefree (PL_retstack); |
531 | #endif |
559 | #endif |
532 | } |
560 | } |
533 | |
561 | |
534 | static void |
562 | static size_t |
535 | setup_coro (struct coro *coro) |
563 | coro_rss (pTHX_ struct coro *coro) |
|
|
564 | { |
|
|
565 | size_t rss = sizeof (*coro); |
|
|
566 | |
|
|
567 | if (coro->mainstack) |
|
|
568 | { |
|
|
569 | if (coro->flags & CF_RUNNING) |
|
|
570 | { |
|
|
571 | #define VAR(name,type)coro->name = PL_ ## name; |
|
|
572 | # include "state.h" |
|
|
573 | #undef VAR |
|
|
574 | } |
|
|
575 | |
|
|
576 | rss += sizeof (coro->curstackinfo); |
|
|
577 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
578 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
579 | rss += sizeof (SV) + sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
|
|
580 | rss += coro->tmps_max * sizeof (SV *); |
|
|
581 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
|
|
582 | rss += coro->scopestack_max * sizeof (I32); |
|
|
583 | rss += coro->savestack_max * sizeof (ANY); |
|
|
584 | |
|
|
585 | #if !PERL_VERSION_ATLEAST (5,9,0) |
|
|
586 | rss += coro->retstack_max * sizeof (OP *); |
|
|
587 | #endif |
|
|
588 | } |
|
|
589 | |
|
|
590 | return rss; |
|
|
591 | } |
|
|
592 | |
|
|
593 | /** coroutine stack handling ************************************************/ |
|
|
594 | |
|
|
595 | static void |
|
|
596 | coro_setup (pTHX_ struct coro *coro) |
536 | { |
597 | { |
537 | /* |
598 | /* |
538 | * emulate part of the perl startup here. |
599 | * emulate part of the perl startup here. |
539 | */ |
600 | */ |
540 | dTHX; |
601 | coro_init_stacks (aTHX); |
|
|
602 | |
|
|
603 | PL_runops = RUNOPS_DEFAULT; |
|
|
604 | PL_curcop = &PL_compiling; |
|
|
605 | PL_in_eval = EVAL_NULL; |
|
|
606 | PL_comppad = 0; |
|
|
607 | PL_curpm = 0; |
|
|
608 | PL_localizing = 0; |
|
|
609 | PL_dirty = 0; |
|
|
610 | PL_restartop = 0; |
|
|
611 | |
|
|
612 | GvSV (PL_defgv) = newSV (0); |
|
|
613 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
614 | GvSV (PL_errgv) = newSV (0); |
|
|
615 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), (SV *)irsgv, PERL_MAGIC_sv, "/", 0); |
|
|
616 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
617 | PL_defoutgv = SvREFCNT_inc (stdoutgv); |
|
|
618 | |
|
|
619 | ENTER; /* necessary e.g. for dounwind */ |
|
|
620 | |
|
|
621 | { |
|
|
622 | dSP; |
|
|
623 | LOGOP myop; |
|
|
624 | |
|
|
625 | Zero (&myop, 1, LOGOP); |
|
|
626 | myop.op_next = Nullop; |
|
|
627 | myop.op_flags = OPf_WANT_VOID; |
|
|
628 | |
|
|
629 | PUSHMARK (SP); |
|
|
630 | XPUSHs (sv_2mortal (av_shift (GvAV (PL_defgv)))); |
|
|
631 | PUTBACK; |
|
|
632 | PL_op = (OP *)&myop; |
|
|
633 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
634 | SPAGAIN; |
|
|
635 | } |
|
|
636 | } |
|
|
637 | |
|
|
638 | static void |
|
|
639 | coro_destroy (pTHX_ struct coro *coro) |
|
|
640 | { |
|
|
641 | if (!IN_DESTRUCT) |
|
|
642 | { |
|
|
643 | /* restore all saved variables and stuff */ |
|
|
644 | LEAVE_SCOPE (0); |
|
|
645 | assert (PL_tmps_floor == -1); |
|
|
646 | |
|
|
647 | /* free all temporaries */ |
|
|
648 | FREETMPS; |
|
|
649 | assert (PL_tmps_ix == -1); |
|
|
650 | |
|
|
651 | /* unwind all extra stacks */ |
|
|
652 | POPSTACK_TO (PL_mainstack); |
|
|
653 | |
|
|
654 | /* unwind main stack */ |
|
|
655 | dounwind (-1); |
|
|
656 | } |
|
|
657 | |
|
|
658 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
659 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
660 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
661 | SvREFCNT_dec (PL_defoutgv); |
|
|
662 | SvREFCNT_dec (PL_rs); |
|
|
663 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
664 | |
|
|
665 | SvREFCNT_dec (coro->saved_deffh); |
|
|
666 | //SvREFCNT_dec (coro->throw); |
|
|
667 | |
|
|
668 | coro_destroy_stacks (aTHX); |
|
|
669 | } |
|
|
670 | |
|
|
671 | static void |
|
|
672 | free_coro_mortal (pTHX) |
|
|
673 | { |
|
|
674 | if (coro_mortal) |
|
|
675 | { |
|
|
676 | SvREFCNT_dec (coro_mortal); |
|
|
677 | coro_mortal = 0; |
|
|
678 | } |
|
|
679 | } |
|
|
680 | |
|
|
681 | static int |
|
|
682 | runops_trace (pTHX) |
|
|
683 | { |
|
|
684 | COP *oldcop = 0; |
|
|
685 | int oldcxix = -2; |
|
|
686 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
687 | coro_cctx *cctx = coro->cctx; |
|
|
688 | |
|
|
689 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
690 | { |
|
|
691 | PERL_ASYNC_CHECK (); |
|
|
692 | |
|
|
693 | if (cctx->flags & CC_TRACE_ALL) |
|
|
694 | { |
|
|
695 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
696 | { |
|
|
697 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
698 | SV **bot, **top; |
|
|
699 | AV *av = newAV (); /* return values */ |
|
|
700 | SV **cb; |
|
|
701 | dSP; |
|
|
702 | |
|
|
703 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
704 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
705 | if (isGV (gv)) |
|
|
706 | gv_efullname3 (fullname, gv, 0); |
|
|
707 | |
|
|
708 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
709 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
710 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
711 | : bot; |
|
|
712 | |
|
|
713 | av_extend (av, top - bot); |
|
|
714 | while (bot < top) |
|
|
715 | av_push (av, SvREFCNT_inc (*bot++)); |
|
|
716 | |
|
|
717 | PL_runops = RUNOPS_DEFAULT; |
|
|
718 | ENTER; |
|
|
719 | SAVETMPS; |
|
|
720 | EXTEND (SP, 3); |
|
|
721 | PUSHMARK (SP); |
|
|
722 | PUSHs (&PL_sv_no); |
|
|
723 | PUSHs (fullname); |
|
|
724 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
725 | PUTBACK; |
|
|
726 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
727 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
728 | SPAGAIN; |
|
|
729 | FREETMPS; |
|
|
730 | LEAVE; |
|
|
731 | PL_runops = runops_trace; |
|
|
732 | } |
|
|
733 | |
|
|
734 | if (oldcop != PL_curcop) |
|
|
735 | { |
|
|
736 | oldcop = PL_curcop; |
|
|
737 | |
|
|
738 | if (PL_curcop != &PL_compiling) |
|
|
739 | { |
|
|
740 | SV **cb; |
|
|
741 | |
|
|
742 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
743 | { |
|
|
744 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
745 | |
|
|
746 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
747 | { |
|
|
748 | runops_proc_t old_runops = PL_runops; |
|
|
749 | dSP; |
|
|
750 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
751 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
752 | |
|
|
753 | if (isGV (gv)) |
|
|
754 | gv_efullname3 (fullname, gv, 0); |
|
|
755 | |
|
|
756 | PL_runops = RUNOPS_DEFAULT; |
|
|
757 | ENTER; |
|
|
758 | SAVETMPS; |
|
|
759 | EXTEND (SP, 3); |
|
|
760 | PUSHMARK (SP); |
|
|
761 | PUSHs (&PL_sv_yes); |
|
|
762 | PUSHs (fullname); |
|
|
763 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
764 | PUTBACK; |
|
|
765 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
766 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
767 | SPAGAIN; |
|
|
768 | FREETMPS; |
|
|
769 | LEAVE; |
|
|
770 | PL_runops = runops_trace; |
|
|
771 | } |
|
|
772 | |
|
|
773 | oldcxix = cxstack_ix; |
|
|
774 | } |
|
|
775 | |
|
|
776 | if (cctx->flags & CC_TRACE_LINE) |
|
|
777 | { |
|
|
778 | dSP; |
|
|
779 | |
|
|
780 | PL_runops = RUNOPS_DEFAULT; |
|
|
781 | ENTER; |
|
|
782 | SAVETMPS; |
|
|
783 | EXTEND (SP, 3); |
|
|
784 | PL_runops = RUNOPS_DEFAULT; |
|
|
785 | PUSHMARK (SP); |
|
|
786 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
787 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
788 | PUTBACK; |
|
|
789 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
790 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
791 | SPAGAIN; |
|
|
792 | FREETMPS; |
|
|
793 | LEAVE; |
|
|
794 | PL_runops = runops_trace; |
|
|
795 | } |
|
|
796 | } |
|
|
797 | } |
|
|
798 | } |
|
|
799 | } |
|
|
800 | |
|
|
801 | TAINT_NOT; |
|
|
802 | return 0; |
|
|
803 | } |
|
|
804 | |
|
|
805 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
806 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
807 | /* during execution of a perl program */ |
|
|
808 | static void NOINLINE |
|
|
809 | prepare_cctx (pTHX_ coro_cctx *cctx) |
|
|
810 | { |
541 | dSP; |
811 | dSP; |
542 | UNOP myop; |
812 | LOGOP myop; |
543 | SV *sub_init = (SV *)get_cv ("Coro::State::coro_init", FALSE); |
|
|
544 | |
813 | |
545 | coro_init_stacks (aTHX); |
814 | PL_top_env = &PL_start_env; |
546 | /*PL_curcop = 0;*/ |
|
|
547 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
|
|
548 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
549 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
550 | |
815 | |
551 | SPAGAIN; |
816 | if (cctx->flags & CC_TRACE) |
|
|
817 | PL_runops = runops_trace; |
552 | |
818 | |
553 | Zero (&myop, 1, UNOP); |
819 | Zero (&myop, 1, LOGOP); |
554 | myop.op_next = Nullop; |
820 | myop.op_next = PL_op; |
555 | myop.op_flags = OPf_WANT_VOID; |
821 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
556 | |
822 | |
|
|
823 | PUSHMARK (SP); |
|
|
824 | EXTEND (SP, 2); |
|
|
825 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
|
|
826 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
|
|
827 | PUTBACK; |
557 | PL_op = (OP *)&myop; |
828 | PL_op = (OP *)&myop; |
558 | |
|
|
559 | PUSHMARK(SP); |
|
|
560 | XPUSHs (sub_init); |
|
|
561 | PUTBACK; |
|
|
562 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
829 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
563 | SPAGAIN; |
830 | SPAGAIN; |
564 | |
|
|
565 | ENTER; /* necessary e.g. for dounwind */ |
|
|
566 | } |
831 | } |
567 | |
832 | |
568 | static void |
833 | /* |
569 | free_coro_mortal () |
834 | * this is a _very_ stripped down perl interpreter ;) |
570 | { |
835 | */ |
571 | if (coro_mortal) |
|
|
572 | { |
|
|
573 | SvREFCNT_dec (coro_mortal); |
|
|
574 | coro_mortal = 0; |
|
|
575 | } |
|
|
576 | } |
|
|
577 | |
|
|
578 | static void |
836 | static void |
579 | coro_run (void *arg) |
837 | coro_run (void *arg) |
580 | { |
838 | { |
|
|
839 | dTHX; |
|
|
840 | |
|
|
841 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
|
|
842 | UNLOCK; |
|
|
843 | |
|
|
844 | /* we now skip the entersub that lead to transfer() */ |
|
|
845 | PL_op = PL_op->op_next; |
|
|
846 | |
|
|
847 | /* inject a fake subroutine call to cctx_init */ |
|
|
848 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
|
|
849 | |
|
|
850 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
|
|
851 | PL_restartop = PL_op; |
|
|
852 | perl_run (PL_curinterp); |
|
|
853 | |
581 | /* |
854 | /* |
582 | * this is a _very_ stripped down perl interpreter ;) |
855 | * If perl-run returns we assume exit() was being called or the coro |
|
|
856 | * fell off the end, which seems to be the only valid (non-bug) |
|
|
857 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
858 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
859 | * coroutine as Coro has no such concept |
583 | */ |
860 | */ |
584 | dTHX; |
|
|
585 | int ret; |
|
|
586 | |
|
|
587 | UNLOCK; |
|
|
588 | |
|
|
589 | PL_top_env = &PL_start_env; |
861 | PL_top_env = main_top_env; |
590 | |
862 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
591 | sv_setiv (get_sv ("Coro::State::cctx_stack", FALSE), PTR2IV ((coro_stack *)arg)); |
|
|
592 | sv_setiv (get_sv ("Coro::State::cctx_restartop", FALSE), PTR2IV (PL_op)); |
|
|
593 | |
|
|
594 | /* continue at cctx_init, without entersub */ |
|
|
595 | PL_restartop = CvSTART (get_cv ("Coro::State::cctx_init", FALSE)); |
|
|
596 | |
|
|
597 | /* somebody will hit me for both perl_run and PL_restartop */ |
|
|
598 | ret = perl_run (aTHX_ PERL_GET_CONTEXT); |
|
|
599 | printf ("ret %d\n", ret);//D |
|
|
600 | |
|
|
601 | fputs ("FATAL: C coroutine fell over the edge of the world, aborting.\n", stderr); |
|
|
602 | abort (); |
|
|
603 | } |
863 | } |
604 | |
864 | |
605 | static coro_stack * |
865 | static coro_cctx * |
606 | stack_new () |
866 | cctx_new () |
607 | { |
867 | { |
608 | coro_stack *stack; |
868 | coro_cctx *cctx; |
|
|
869 | void *stack_start; |
|
|
870 | size_t stack_size; |
609 | |
871 | |
|
|
872 | ++cctx_count; |
|
|
873 | |
610 | New (0, stack, 1, coro_stack); |
874 | Newz (0, cctx, 1, coro_cctx); |
611 | |
875 | |
612 | #if HAVE_MMAP |
876 | #if HAVE_MMAP |
613 | |
877 | |
614 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; |
878 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
615 | /* mmap suppsedly does allocate-on-write for us */ |
879 | /* mmap supposedly does allocate-on-write for us */ |
616 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
880 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
617 | |
881 | |
618 | if (stack->sptr == (void *)-1) |
882 | if (cctx->sptr != (void *)-1) |
619 | { |
|
|
620 | perror ("FATAL: unable to mmap stack for coroutine"); |
|
|
621 | _exit (EXIT_FAILURE); |
|
|
622 | } |
883 | { |
623 | |
|
|
624 | # if STACKGUARD |
884 | # if CORO_STACKGUARD |
625 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
885 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
626 | # endif |
886 | # endif |
627 | |
887 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
628 | #else |
888 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
629 | |
889 | cctx->flags |= CC_MAPPED; |
630 | stack->ssize = STACKSIZE * (long)sizeof (long); |
|
|
631 | New (0, stack->sptr, STACKSIZE, long); |
|
|
632 | |
|
|
633 | if (!stack->sptr) |
|
|
634 | { |
890 | } |
|
|
891 | else |
|
|
892 | #endif |
|
|
893 | { |
|
|
894 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
895 | New (0, cctx->sptr, coro_stacksize, long); |
|
|
896 | |
|
|
897 | if (!cctx->sptr) |
|
|
898 | { |
635 | perror (stderr, "FATAL: unable to malloc stack for coroutine"); |
899 | perror ("FATAL: unable to allocate stack for coroutine"); |
636 | _exit (EXIT_FAILURE); |
900 | _exit (EXIT_FAILURE); |
637 | } |
901 | } |
638 | |
902 | |
639 | #endif |
903 | stack_start = cctx->sptr; |
|
|
904 | stack_size = cctx->ssize; |
|
|
905 | } |
640 | |
906 | |
|
|
907 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
641 | coro_create (&stack->cctx, coro_run, (void *)stack, stack->sptr, stack->ssize); |
908 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
642 | |
909 | |
643 | return stack; |
910 | return cctx; |
644 | } |
911 | } |
645 | |
912 | |
646 | static void |
913 | static void |
647 | stack_free (coro_stack *stack) |
914 | cctx_destroy (coro_cctx *cctx) |
648 | { |
915 | { |
649 | if (!stack) |
916 | if (!cctx) |
650 | return; |
917 | return; |
651 | |
918 | |
|
|
919 | --cctx_count; |
|
|
920 | |
|
|
921 | #if CORO_USE_VALGRIND |
|
|
922 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
923 | #endif |
|
|
924 | |
652 | #if HAVE_MMAP |
925 | #if HAVE_MMAP |
|
|
926 | if (cctx->flags & CC_MAPPED) |
653 | munmap (stack->sptr, stack->ssize); |
927 | munmap (cctx->sptr, cctx->ssize); |
654 | #else |
|
|
655 | Safefree (stack->sptr); |
|
|
656 | #endif |
|
|
657 | |
|
|
658 | Safefree (stack); |
|
|
659 | } |
|
|
660 | |
|
|
661 | static coro_stack *stack_first; |
|
|
662 | |
|
|
663 | static coro_stack * |
|
|
664 | stack_get () |
|
|
665 | { |
|
|
666 | coro_stack *stack; |
|
|
667 | |
|
|
668 | if (stack_first) |
|
|
669 | { |
|
|
670 | stack = stack_first; |
|
|
671 | stack_first = stack->next; |
|
|
672 | } |
|
|
673 | else |
928 | else |
|
|
929 | #endif |
|
|
930 | Safefree (cctx->sptr); |
|
|
931 | |
|
|
932 | Safefree (cctx); |
|
|
933 | } |
|
|
934 | |
|
|
935 | /* wether this cctx should be destructed */ |
|
|
936 | #define CCTX_EXPIRED(cctx) ((cctx)->ssize < coro_stacksize || ((cctx)->flags & CC_NOREUSE)) |
|
|
937 | |
|
|
938 | static coro_cctx * |
|
|
939 | cctx_get (pTHX) |
|
|
940 | { |
|
|
941 | while (cctx_first) |
674 | { |
942 | { |
675 | stack = stack_new (); |
943 | coro_cctx *cctx = cctx_first; |
676 | PL_op = PL_op->op_next; |
944 | cctx_first = cctx->next; |
|
|
945 | --cctx_idle; |
|
|
946 | |
|
|
947 | if (!CCTX_EXPIRED (cctx)) |
|
|
948 | return cctx; |
|
|
949 | |
|
|
950 | cctx_destroy (cctx); |
677 | } |
951 | } |
678 | |
952 | |
679 | return stack; |
953 | return cctx_new (); |
680 | } |
954 | } |
681 | |
955 | |
682 | static void |
956 | static void |
683 | stack_put (coro_stack *stack) |
957 | cctx_put (coro_cctx *cctx) |
684 | { |
958 | { |
685 | stack->next = stack_first; |
959 | /* free another cctx if overlimit */ |
686 | stack_first = stack; |
960 | if (cctx_idle >= MAX_IDLE_CCTX) |
687 | } |
961 | { |
|
|
962 | coro_cctx *first = cctx_first; |
|
|
963 | cctx_first = first->next; |
|
|
964 | --cctx_idle; |
688 | |
965 | |
689 | /* never call directly, always through the coro_state_transfer global variable */ |
966 | cctx_destroy (first); |
690 | static void |
967 | } |
|
|
968 | |
|
|
969 | ++cctx_idle; |
|
|
970 | cctx->next = cctx_first; |
|
|
971 | cctx_first = cctx; |
|
|
972 | } |
|
|
973 | |
|
|
974 | /** coroutine switching *****************************************************/ |
|
|
975 | |
|
|
976 | static void NOINLINE |
|
|
977 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
978 | { |
|
|
979 | if (prev != next) |
|
|
980 | { |
|
|
981 | if (!(prev->flags & (CF_RUNNING | CF_NEW))) |
|
|
982 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
983 | |
|
|
984 | if (next->flags & CF_RUNNING) |
|
|
985 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
986 | |
|
|
987 | if (next->flags & CF_DESTROYED) |
|
|
988 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
989 | |
|
|
990 | if (PL_lex_state != LEX_NOTPARSING) |
|
|
991 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
|
|
992 | } |
|
|
993 | } |
|
|
994 | |
|
|
995 | /* always use the TRANSFER macro */ |
|
|
996 | static void NOINLINE |
691 | transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
997 | transfer (pTHX_ struct coro *prev, struct coro *next) |
692 | { |
998 | { |
693 | dSTACKLEVEL; |
999 | dSTACKLEVEL; |
694 | |
1000 | |
695 | /* sometimes transfer is only called to set idle_sp */ |
1001 | /* sometimes transfer is only called to set idle_sp */ |
696 | if (flags == TRANSFER_SET_STACKLEVEL) |
1002 | if (!next) |
|
|
1003 | { |
697 | ((coro_stack *)prev)->idle_sp = STACKLEVEL; |
1004 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
|
|
1005 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
|
|
1006 | } |
698 | else if (prev != next) |
1007 | else if (prev != next) |
699 | { |
1008 | { |
700 | coro_stack *prev__stack; |
1009 | coro_cctx *prev__cctx; |
|
|
1010 | |
|
|
1011 | if (prev->flags & CF_NEW) |
|
|
1012 | { |
|
|
1013 | /* create a new empty context */ |
|
|
1014 | Newz (0, prev->cctx, 1, coro_cctx); |
|
|
1015 | prev->flags &= ~CF_NEW; |
|
|
1016 | prev->flags |= CF_RUNNING; |
|
|
1017 | } |
|
|
1018 | |
|
|
1019 | prev->flags &= ~CF_RUNNING; |
|
|
1020 | next->flags |= CF_RUNNING; |
701 | |
1021 | |
702 | LOCK; |
1022 | LOCK; |
703 | |
1023 | |
704 | if (next->mainstack) |
1024 | if (next->flags & CF_NEW) |
705 | { |
1025 | { |
706 | /* coroutine already started */ |
1026 | /* need to start coroutine */ |
707 | SAVE (prev, flags); |
1027 | next->flags &= ~CF_NEW; |
708 | LOAD (next); |
1028 | /* first get rid of the old state */ |
|
|
1029 | save_perl (aTHX_ prev); |
|
|
1030 | /* setup coroutine call */ |
|
|
1031 | coro_setup (aTHX_ next); |
709 | } |
1032 | } |
710 | else |
1033 | else |
711 | { |
1034 | { |
712 | /* need to start coroutine */ |
1035 | /* coroutine already started */ |
713 | /* first get rid of the old state */ |
1036 | save_perl (aTHX_ prev); |
714 | SAVE (prev, -1); |
1037 | load_perl (aTHX_ next); |
715 | /* setup coroutine call */ |
|
|
716 | setup_coro (next); |
|
|
717 | /* need a stack */ |
|
|
718 | next->stack = 0; |
|
|
719 | } |
1038 | } |
720 | |
1039 | |
721 | if (!prev->stack) |
|
|
722 | /* create a new empty context */ |
|
|
723 | Newz (0, prev->stack, 1, coro_stack); |
|
|
724 | |
|
|
725 | prev__stack = prev->stack; |
1040 | prev__cctx = prev->cctx; |
726 | |
1041 | |
727 | /* possibly "free" the stack */ |
1042 | /* possibly "free" the cctx */ |
728 | if (prev__stack->idle_sp == STACKLEVEL) |
1043 | if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) |
729 | { |
1044 | { |
730 | stack_put (prev__stack); |
1045 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
|
|
1046 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
|
|
1047 | |
731 | prev->stack = 0; |
1048 | prev->cctx = 0; |
|
|
1049 | |
|
|
1050 | /* if the cctx is about to be destroyed we need to make sure we won't see it in cctx_get */ |
|
|
1051 | if (CCTX_EXPIRED (prev__cctx)) |
|
|
1052 | next->cctx = cctx_get (aTHX); |
|
|
1053 | |
|
|
1054 | cctx_put (prev__cctx); |
732 | } |
1055 | } |
733 | |
1056 | |
|
|
1057 | ++next->usecount; |
|
|
1058 | |
734 | if (!next->stack) |
1059 | if (!next->cctx) |
735 | next->stack = stack_get (); |
1060 | next->cctx = cctx_get (aTHX); |
736 | |
1061 | |
737 | if (prev__stack != next->stack) |
1062 | if (prev__cctx != next->cctx) |
738 | { |
1063 | { |
739 | prev__stack->top_env = PL_top_env; |
1064 | prev__cctx->top_env = PL_top_env; |
740 | PL_top_env = next->stack->top_env; |
1065 | PL_top_env = next->cctx->top_env; |
741 | coro_transfer (&prev__stack->cctx, &next->stack->cctx); |
1066 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
742 | } |
1067 | } |
743 | |
1068 | |
744 | free_coro_mortal (); |
1069 | free_coro_mortal (aTHX); |
745 | |
|
|
746 | UNLOCK; |
1070 | UNLOCK; |
747 | } |
1071 | } |
748 | } |
1072 | } |
749 | |
1073 | |
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 |
1074 | struct transfer_args |
756 | { |
1075 | { |
757 | struct coro *prev, *next; |
1076 | struct coro *prev, *next; |
758 | int flags; |
|
|
759 | }; |
1077 | }; |
760 | |
1078 | |
761 | #define TRANSFER(ta) coro_state_transfer ((ta).prev, (ta).next, (ta).flags) |
1079 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
|
|
1080 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
762 | |
1081 | |
|
|
1082 | /** high level stuff ********************************************************/ |
|
|
1083 | |
763 | static void |
1084 | static int |
764 | coro_state_destroy (struct coro *coro) |
1085 | coro_state_destroy (pTHX_ struct coro *coro) |
765 | { |
1086 | { |
766 | if (coro->refcnt--) |
1087 | if (coro->flags & CF_DESTROYED) |
767 | return; |
1088 | return 0; |
|
|
1089 | |
|
|
1090 | coro->flags |= CF_DESTROYED; |
|
|
1091 | |
|
|
1092 | if (coro->flags & CF_READY) |
|
|
1093 | { |
|
|
1094 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1095 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1096 | LOCK; |
|
|
1097 | --coro_nready; |
|
|
1098 | UNLOCK; |
|
|
1099 | } |
|
|
1100 | else |
|
|
1101 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
768 | |
1102 | |
769 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1103 | if (coro->mainstack && coro->mainstack != main_mainstack) |
770 | { |
1104 | { |
771 | struct coro temp; |
1105 | struct coro temp; |
772 | |
1106 | |
773 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
1107 | if (coro->flags & CF_RUNNING) |
|
|
1108 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1109 | |
|
|
1110 | save_perl (aTHX_ &temp); |
774 | LOAD (aTHX_ coro); |
1111 | load_perl (aTHX_ coro); |
775 | |
1112 | |
776 | destroy_stacks (aTHX); |
1113 | coro_destroy (aTHX_ coro); |
777 | |
1114 | |
778 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
1115 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
779 | |
1116 | |
780 | coro->mainstack = 0; |
1117 | coro->mainstack = 0; |
781 | } |
1118 | } |
782 | |
1119 | |
783 | stack_free (coro->stack); |
1120 | cctx_destroy (coro->cctx); |
784 | SvREFCNT_dec (coro->args); |
1121 | SvREFCNT_dec (coro->args); |
785 | Safefree (coro); |
1122 | |
|
|
1123 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1124 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1125 | if (coro == coro_first) coro_first = coro->next; |
|
|
1126 | |
|
|
1127 | return 1; |
786 | } |
1128 | } |
787 | |
1129 | |
788 | static int |
1130 | static int |
789 | coro_state_clear (SV *sv, MAGIC *mg) |
1131 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
790 | { |
1132 | { |
791 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1133 | struct coro *coro = (struct coro *)mg->mg_ptr; |
792 | mg->mg_ptr = 0; |
1134 | mg->mg_ptr = 0; |
793 | |
1135 | |
|
|
1136 | coro->hv = 0; |
|
|
1137 | |
|
|
1138 | if (--coro->refcnt < 0) |
|
|
1139 | { |
794 | coro_state_destroy (coro); |
1140 | coro_state_destroy (aTHX_ coro); |
|
|
1141 | Safefree (coro); |
|
|
1142 | } |
795 | |
1143 | |
796 | return 0; |
1144 | return 0; |
797 | } |
1145 | } |
798 | |
1146 | |
799 | static int |
1147 | static int |
800 | coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) |
1148 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
801 | { |
1149 | { |
802 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1150 | struct coro *coro = (struct coro *)mg->mg_ptr; |
803 | |
1151 | |
804 | ++coro->refcnt; |
1152 | ++coro->refcnt; |
805 | |
1153 | |
806 | return 0; |
1154 | return 0; |
807 | } |
1155 | } |
808 | |
1156 | |
809 | static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; |
1157 | static MGVTBL coro_state_vtbl = { |
|
|
1158 | 0, 0, 0, 0, |
|
|
1159 | coro_state_free, |
|
|
1160 | 0, |
|
|
1161 | #ifdef MGf_DUP |
|
|
1162 | coro_state_dup, |
|
|
1163 | #else |
|
|
1164 | # define MGf_DUP 0 |
|
|
1165 | #endif |
|
|
1166 | }; |
810 | |
1167 | |
811 | static struct coro * |
|
|
812 | SvSTATE (SV *coro) |
|
|
813 | { |
|
|
814 | HV *stash; |
|
|
815 | MAGIC *mg; |
|
|
816 | |
|
|
817 | if (SvROK (coro)) |
|
|
818 | coro = SvRV (coro); |
|
|
819 | |
|
|
820 | stash = SvSTASH (coro); |
|
|
821 | if (stash != coro_stash && stash != coro_state_stash) |
|
|
822 | { |
|
|
823 | /* very slow, but rare, check */ |
|
|
824 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
|
|
825 | croak ("Coro::State object required"); |
|
|
826 | } |
|
|
827 | |
|
|
828 | mg = SvMAGIC (coro); |
|
|
829 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
830 | return (struct coro *)mg->mg_ptr; |
|
|
831 | } |
|
|
832 | |
|
|
833 | static void |
1168 | static void |
834 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev, SV *next, int flags) |
1169 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
835 | { |
1170 | { |
836 | ta->prev = SvSTATE (prev); |
1171 | ta->prev = SvSTATE (prev_sv); |
837 | ta->next = SvSTATE (next); |
1172 | ta->next = SvSTATE (next_sv); |
838 | ta->flags = flags; |
1173 | TRANSFER_CHECK (*ta); |
839 | } |
1174 | } |
840 | |
1175 | |
841 | static void |
1176 | static void |
842 | api_transfer (SV *prev, SV *next, int flags) |
1177 | api_transfer (SV *prev_sv, SV *next_sv) |
843 | { |
1178 | { |
844 | dTHX; |
1179 | dTHX; |
845 | struct transfer_args ta; |
1180 | struct transfer_args ta; |
846 | |
1181 | |
847 | prepare_transfer (aTHX_ &ta, prev, next, flags); |
1182 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
848 | TRANSFER (ta); |
1183 | TRANSFER (ta); |
849 | } |
1184 | } |
850 | |
1185 | |
851 | /** Coro ********************************************************************/ |
1186 | /** Coro ********************************************************************/ |
852 | |
1187 | |
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 |
1188 | static void |
866 | coro_enq (pTHX_ SV *sv) |
1189 | coro_enq (pTHX_ SV *coro_sv) |
867 | { |
1190 | { |
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); |
1191 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
876 | coro_nready++; |
|
|
877 | } |
1192 | } |
878 | |
1193 | |
879 | static SV * |
1194 | static SV * |
880 | coro_deq (pTHX_ int min_prio) |
1195 | coro_deq (pTHX_ int min_prio) |
881 | { |
1196 | { |
… | |
… | |
885 | if (min_prio < 0) |
1200 | if (min_prio < 0) |
886 | min_prio = 0; |
1201 | min_prio = 0; |
887 | |
1202 | |
888 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1203 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
889 | if (AvFILLp (coro_ready [prio]) >= 0) |
1204 | if (AvFILLp (coro_ready [prio]) >= 0) |
890 | { |
|
|
891 | coro_nready--; |
|
|
892 | return av_shift (coro_ready [prio]); |
1205 | return av_shift (coro_ready [prio]); |
893 | } |
|
|
894 | |
1206 | |
895 | return 0; |
1207 | return 0; |
896 | } |
1208 | } |
897 | |
1209 | |
898 | static void |
1210 | static int |
899 | api_ready (SV *coro) |
1211 | api_ready (SV *coro_sv) |
900 | { |
1212 | { |
901 | dTHX; |
1213 | dTHX; |
|
|
1214 | struct coro *coro; |
902 | |
1215 | |
903 | if (SvROK (coro)) |
1216 | if (SvROK (coro_sv)) |
904 | coro = SvRV (coro); |
1217 | coro_sv = SvRV (coro_sv); |
|
|
1218 | |
|
|
1219 | coro = SvSTATE (coro_sv); |
|
|
1220 | |
|
|
1221 | if (coro->flags & CF_READY) |
|
|
1222 | return 0; |
|
|
1223 | |
|
|
1224 | coro->flags |= CF_READY; |
905 | |
1225 | |
906 | LOCK; |
1226 | LOCK; |
907 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
1227 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1228 | ++coro_nready; |
908 | UNLOCK; |
1229 | UNLOCK; |
909 | } |
|
|
910 | |
1230 | |
|
|
1231 | return 1; |
|
|
1232 | } |
|
|
1233 | |
911 | static void |
1234 | static int |
|
|
1235 | api_is_ready (SV *coro_sv) |
|
|
1236 | { |
|
|
1237 | dTHX; |
|
|
1238 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1239 | } |
|
|
1240 | |
|
|
1241 | static void |
912 | prepare_schedule (aTHX_ struct transfer_args *ta) |
1242 | prepare_schedule (pTHX_ struct transfer_args *ta) |
913 | { |
1243 | { |
914 | SV *current, *prev, *next; |
1244 | SV *prev_sv, *next_sv; |
|
|
1245 | |
|
|
1246 | for (;;) |
|
|
1247 | { |
|
|
1248 | LOCK; |
|
|
1249 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1250 | |
|
|
1251 | /* nothing to schedule: call the idle handler */ |
|
|
1252 | if (!next_sv) |
|
|
1253 | { |
|
|
1254 | dSP; |
|
|
1255 | UNLOCK; |
|
|
1256 | |
|
|
1257 | ENTER; |
|
|
1258 | SAVETMPS; |
|
|
1259 | |
|
|
1260 | PUSHMARK (SP); |
|
|
1261 | PUTBACK; |
|
|
1262 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1263 | |
|
|
1264 | FREETMPS; |
|
|
1265 | LEAVE; |
|
|
1266 | continue; |
|
|
1267 | } |
|
|
1268 | |
|
|
1269 | ta->next = SvSTATE (next_sv); |
|
|
1270 | |
|
|
1271 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1272 | if (ta->next->flags & CF_DESTROYED) |
|
|
1273 | { |
|
|
1274 | UNLOCK; |
|
|
1275 | SvREFCNT_dec (next_sv); |
|
|
1276 | /* coro_nready is already taken care of by destroy */ |
|
|
1277 | continue; |
|
|
1278 | } |
|
|
1279 | |
|
|
1280 | --coro_nready; |
|
|
1281 | UNLOCK; |
|
|
1282 | break; |
|
|
1283 | } |
|
|
1284 | |
|
|
1285 | /* free this only after the transfer */ |
|
|
1286 | prev_sv = SvRV (coro_current); |
|
|
1287 | ta->prev = SvSTATE (prev_sv); |
|
|
1288 | TRANSFER_CHECK (*ta); |
|
|
1289 | assert (ta->next->flags & CF_READY); |
|
|
1290 | ta->next->flags &= ~CF_READY; |
|
|
1291 | SvRV_set (coro_current, next_sv); |
915 | |
1292 | |
916 | LOCK; |
1293 | 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 (); |
1294 | free_coro_mortal (aTHX); |
951 | coro_mortal = prev; |
1295 | coro_mortal = prev_sv; |
952 | |
|
|
953 | ta->prev = SvSTATE (prev); |
|
|
954 | ta->next = SvSTATE (next); |
|
|
955 | ta->flags = TRANSFER_SAVE_ALL; |
|
|
956 | |
|
|
957 | UNLOCK; |
1296 | UNLOCK; |
958 | } |
1297 | } |
959 | |
1298 | |
960 | static void |
1299 | static void |
961 | prepare_cede (aTHX_ struct transfer_args *ta) |
1300 | prepare_cede (pTHX_ struct transfer_args *ta) |
962 | { |
1301 | { |
963 | LOCK; |
1302 | api_ready (coro_current); |
964 | coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
965 | UNLOCK; |
|
|
966 | |
|
|
967 | prepare_schedule (ta); |
1303 | prepare_schedule (aTHX_ ta); |
|
|
1304 | } |
|
|
1305 | |
|
|
1306 | static int |
|
|
1307 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1308 | { |
|
|
1309 | if (coro_nready) |
|
|
1310 | { |
|
|
1311 | SV *prev = SvRV (coro_current); |
|
|
1312 | prepare_schedule (aTHX_ ta); |
|
|
1313 | api_ready (prev); |
|
|
1314 | return 1; |
|
|
1315 | } |
|
|
1316 | else |
|
|
1317 | return 0; |
968 | } |
1318 | } |
969 | |
1319 | |
970 | static void |
1320 | static void |
971 | api_schedule (void) |
1321 | api_schedule (void) |
972 | { |
1322 | { |
973 | dTHX; |
1323 | dTHX; |
974 | struct transfer_args ta; |
1324 | struct transfer_args ta; |
975 | |
1325 | |
976 | prepare_schedule (&ta); |
1326 | prepare_schedule (aTHX_ &ta); |
977 | TRANSFER (ta); |
1327 | TRANSFER (ta); |
978 | } |
1328 | } |
979 | |
1329 | |
980 | static void |
1330 | static int |
981 | api_cede (void) |
1331 | api_cede (void) |
982 | { |
1332 | { |
983 | dTHX; |
1333 | dTHX; |
984 | struct transfer_args ta; |
1334 | struct transfer_args ta; |
985 | |
1335 | |
986 | prepare_cede (&ta); |
1336 | prepare_cede (aTHX_ &ta); |
|
|
1337 | |
|
|
1338 | if (ta.prev != ta.next) |
|
|
1339 | { |
987 | TRANSFER (ta); |
1340 | TRANSFER (ta); |
|
|
1341 | return 1; |
|
|
1342 | } |
|
|
1343 | else |
|
|
1344 | return 0; |
988 | } |
1345 | } |
989 | |
1346 | |
|
|
1347 | static int |
|
|
1348 | api_cede_notself (void) |
|
|
1349 | { |
|
|
1350 | dTHX; |
|
|
1351 | struct transfer_args ta; |
|
|
1352 | |
|
|
1353 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1354 | { |
|
|
1355 | TRANSFER (ta); |
|
|
1356 | return 1; |
|
|
1357 | } |
|
|
1358 | else |
|
|
1359 | return 0; |
|
|
1360 | } |
|
|
1361 | |
|
|
1362 | static void |
|
|
1363 | api_trace (SV *coro_sv, int flags) |
|
|
1364 | { |
|
|
1365 | dTHX; |
|
|
1366 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1367 | |
|
|
1368 | if (flags & CC_TRACE) |
|
|
1369 | { |
|
|
1370 | if (!coro->cctx) |
|
|
1371 | coro->cctx = cctx_new (); |
|
|
1372 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1373 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1374 | |
|
|
1375 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1376 | } |
|
|
1377 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1378 | { |
|
|
1379 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1380 | |
|
|
1381 | if (coro->flags & CF_RUNNING) |
|
|
1382 | PL_runops = RUNOPS_DEFAULT; |
|
|
1383 | else |
|
|
1384 | coro->runops = RUNOPS_DEFAULT; |
|
|
1385 | } |
|
|
1386 | } |
|
|
1387 | |
990 | MODULE = Coro::State PACKAGE = Coro::State |
1388 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
991 | |
1389 | |
992 | PROTOTYPES: DISABLE |
1390 | PROTOTYPES: DISABLE |
993 | |
1391 | |
994 | BOOT: |
1392 | BOOT: |
995 | { |
1393 | { |
996 | #ifdef USE_ITHREADS |
1394 | #ifdef USE_ITHREADS |
997 | MUTEX_INIT (&coro_mutex); |
1395 | MUTEX_INIT (&coro_mutex); |
998 | #endif |
1396 | #endif |
999 | BOOT_PAGESIZE; |
1397 | BOOT_PAGESIZE; |
1000 | |
1398 | |
|
|
1399 | irsgv = gv_fetchpv ("/" , GV_ADD|GV_NOTQUAL, SVt_PV); |
|
|
1400 | stdoutgv = gv_fetchpv ("STDOUT", GV_ADD|GV_NOTQUAL, SVt_PVIO); |
|
|
1401 | |
1001 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1402 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1002 | |
1403 | |
1003 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1404 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
1004 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1405 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
1005 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1406 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
|
|
1407 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
1006 | |
1408 | |
1007 | main_mainstack = PL_mainstack; |
1409 | main_mainstack = PL_mainstack; |
|
|
1410 | main_top_env = PL_top_env; |
|
|
1411 | |
|
|
1412 | while (main_top_env->je_prev) |
|
|
1413 | main_top_env = main_top_env->je_prev; |
1008 | |
1414 | |
1009 | coroapi.ver = CORO_API_VERSION; |
1415 | coroapi.ver = CORO_API_VERSION; |
1010 | coroapi.transfer = api_transfer; |
1416 | coroapi.transfer = api_transfer; |
1011 | |
1417 | |
1012 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1418 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
… | |
… | |
1019 | struct coro *coro; |
1425 | struct coro *coro; |
1020 | HV *hv; |
1426 | HV *hv; |
1021 | int i; |
1427 | int i; |
1022 | |
1428 | |
1023 | Newz (0, coro, 1, struct coro); |
1429 | Newz (0, coro, 1, struct coro); |
1024 | coro->args = newAV (); |
1430 | coro->args = newAV (); |
|
|
1431 | coro->flags = CF_NEW; |
1025 | |
1432 | |
|
|
1433 | if (coro_first) coro_first->prev = coro; |
|
|
1434 | coro->next = coro_first; |
|
|
1435 | coro_first = coro; |
|
|
1436 | |
1026 | hv = newHV (); |
1437 | coro->hv = hv = newHV (); |
1027 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1438 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
1028 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1439 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1029 | |
1440 | |
|
|
1441 | av_extend (coro->args, items - 1); |
1030 | for (i = 1; i < items; i++) |
1442 | for (i = 1; i < items; i++) |
1031 | av_push (coro->args, newSVsv (ST (i))); |
1443 | av_push (coro->args, newSVsv (ST (i))); |
1032 | |
|
|
1033 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
|
|
1034 | /*coro->stack = 0;*/ |
|
|
1035 | } |
1444 | } |
1036 | OUTPUT: |
1445 | OUTPUT: |
1037 | RETVAL |
1446 | RETVAL |
1038 | |
1447 | |
|
|
1448 | # these not obviously related functions are all rolled into the same xs |
|
|
1449 | # function to increase chances that they all will call transfer with the same |
|
|
1450 | # stack offset |
1039 | void |
1451 | void |
1040 | _set_stacklevel (...) |
1452 | _set_stacklevel (...) |
1041 | ALIAS: |
1453 | ALIAS: |
1042 | Coro::State::transfer = 1 |
1454 | Coro::State::transfer = 1 |
1043 | Coro::schedule = 2 |
1455 | Coro::schedule = 2 |
1044 | Coro::cede = 3 |
1456 | Coro::cede = 3 |
1045 | Coro::Cont::yield = 4 |
1457 | Coro::cede_notself = 4 |
1046 | CODE: |
1458 | CODE: |
1047 | { |
1459 | { |
1048 | struct transfer_args ta; |
1460 | struct transfer_args ta; |
1049 | |
1461 | |
1050 | switch (ix) |
1462 | switch (ix) |
1051 | { |
1463 | { |
1052 | case 0: |
1464 | case 0: |
1053 | ta.prev = (struct coro *)INT2PTR (coro_stack *, SvIV (ST (0))); |
1465 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
1054 | ta.next = 0; |
1466 | ta.next = 0; |
1055 | ta.flags = TRANSFER_SET_STACKLEVEL; |
|
|
1056 | break; |
1467 | break; |
1057 | |
1468 | |
1058 | case 1: |
1469 | case 1: |
1059 | if (items != 3) |
1470 | if (items != 2) |
1060 | croak ("Coro::State::transfer(prev,next,flags) expects three arguments, not %d", items); |
1471 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1061 | |
1472 | |
1062 | prepare_transfer (&ta, ST (0), ST (1), SvIV (ST (2))); |
1473 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1063 | break; |
1474 | break; |
1064 | |
1475 | |
1065 | case 2: |
1476 | case 2: |
1066 | prepare_schedule (&ta); |
1477 | prepare_schedule (aTHX_ &ta); |
1067 | break; |
1478 | break; |
1068 | |
1479 | |
1069 | case 3: |
1480 | case 3: |
1070 | prepare_cede (&ta); |
1481 | prepare_cede (aTHX_ &ta); |
1071 | break; |
1482 | break; |
1072 | |
1483 | |
1073 | case 4: |
1484 | case 4: |
1074 | { |
1485 | if (!prepare_cede_notself (aTHX_ &ta)) |
1075 | SV *yieldstack; |
1486 | XSRETURN_EMPTY; |
1076 | SV *sv; |
|
|
1077 | AV *defav = GvAV (PL_defgv); |
|
|
1078 | |
1487 | |
1079 | yieldstack = *hv_fetch ( |
|
|
1080 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1081 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1082 | 0 |
|
|
1083 | ); |
|
|
1084 | |
|
|
1085 | /* set up @_ -- ugly */ |
|
|
1086 | av_clear (defav); |
|
|
1087 | av_fill (defav, items - 1); |
|
|
1088 | while (items--) |
|
|
1089 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1090 | |
|
|
1091 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1092 | ta.prev = SvSTATE (*av_fetch ((AV *)SvRV (sv), 0, 0)); |
|
|
1093 | ta.next = SvSTATE (*av_fetch ((AV *)SvRV (sv), 1, 0)); |
|
|
1094 | ta.flags = 0; |
|
|
1095 | SvREFCNT_dec (sv); |
|
|
1096 | } |
|
|
1097 | break; |
1488 | break; |
1098 | |
|
|
1099 | } |
1489 | } |
1100 | |
1490 | |
|
|
1491 | BARRIER; |
1101 | TRANSFER (ta); |
1492 | TRANSFER (ta); |
1102 | } |
|
|
1103 | |
1493 | |
1104 | void |
1494 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
1105 | _clone_state_from (SV *dst, SV *src) |
1495 | XSRETURN_YES; |
|
|
1496 | } |
|
|
1497 | |
|
|
1498 | bool |
|
|
1499 | _destroy (SV *coro_sv) |
1106 | CODE: |
1500 | CODE: |
1107 | { |
1501 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1108 | struct coro *coro_src = SvSTATE (src); |
1502 | OUTPUT: |
1109 | |
1503 | RETVAL |
1110 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1111 | |
|
|
1112 | ++coro_src->refcnt; |
|
|
1113 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1114 | } |
|
|
1115 | |
|
|
1116 | void |
|
|
1117 | _nonlocal_goto (IV nextop) |
|
|
1118 | CODE: |
|
|
1119 | /* uuh, somebody will kill me again for this */ |
|
|
1120 | PL_op->op_next = INT2PTR (OP *, nextop); |
|
|
1121 | |
1504 | |
1122 | void |
1505 | void |
1123 | _exit (code) |
1506 | _exit (code) |
1124 | int code |
1507 | int code |
1125 | PROTOTYPE: $ |
1508 | PROTOTYPE: $ |
1126 | CODE: |
1509 | CODE: |
1127 | _exit (code); |
1510 | _exit (code); |
1128 | |
1511 | |
|
|
1512 | int |
|
|
1513 | cctx_stacksize (int new_stacksize = 0) |
|
|
1514 | CODE: |
|
|
1515 | RETVAL = coro_stacksize; |
|
|
1516 | if (new_stacksize) |
|
|
1517 | coro_stacksize = new_stacksize; |
|
|
1518 | OUTPUT: |
|
|
1519 | RETVAL |
|
|
1520 | |
|
|
1521 | int |
|
|
1522 | cctx_count () |
|
|
1523 | CODE: |
|
|
1524 | RETVAL = cctx_count; |
|
|
1525 | OUTPUT: |
|
|
1526 | RETVAL |
|
|
1527 | |
|
|
1528 | int |
|
|
1529 | cctx_idle () |
|
|
1530 | CODE: |
|
|
1531 | RETVAL = cctx_idle; |
|
|
1532 | OUTPUT: |
|
|
1533 | RETVAL |
|
|
1534 | |
|
|
1535 | void |
|
|
1536 | list () |
|
|
1537 | PPCODE: |
|
|
1538 | { |
|
|
1539 | struct coro *coro; |
|
|
1540 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1541 | if (coro->hv) |
|
|
1542 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1543 | } |
|
|
1544 | |
|
|
1545 | void |
|
|
1546 | call (Coro::State coro, SV *coderef) |
|
|
1547 | ALIAS: |
|
|
1548 | eval = 1 |
|
|
1549 | CODE: |
|
|
1550 | { |
|
|
1551 | if (coro->mainstack) |
|
|
1552 | { |
|
|
1553 | struct coro temp; |
|
|
1554 | Zero (&temp, 1, struct coro); |
|
|
1555 | |
|
|
1556 | if (!(coro->flags & CF_RUNNING)) |
|
|
1557 | { |
|
|
1558 | save_perl (aTHX_ &temp); |
|
|
1559 | load_perl (aTHX_ coro); |
|
|
1560 | } |
|
|
1561 | |
|
|
1562 | { |
|
|
1563 | dSP; |
|
|
1564 | ENTER; |
|
|
1565 | SAVETMPS; |
|
|
1566 | PUSHMARK (SP); |
|
|
1567 | PUTBACK; |
|
|
1568 | if (ix) |
|
|
1569 | eval_sv (coderef, 0); |
|
|
1570 | else |
|
|
1571 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1572 | SPAGAIN; |
|
|
1573 | FREETMPS; |
|
|
1574 | LEAVE; |
|
|
1575 | PUTBACK; |
|
|
1576 | } |
|
|
1577 | |
|
|
1578 | if (!(coro->flags & CF_RUNNING)) |
|
|
1579 | { |
|
|
1580 | save_perl (aTHX_ coro); |
|
|
1581 | load_perl (aTHX_ &temp); |
|
|
1582 | } |
|
|
1583 | } |
|
|
1584 | } |
|
|
1585 | |
|
|
1586 | SV * |
|
|
1587 | is_ready (Coro::State coro) |
|
|
1588 | PROTOTYPE: $ |
|
|
1589 | ALIAS: |
|
|
1590 | is_ready = CF_READY |
|
|
1591 | is_running = CF_RUNNING |
|
|
1592 | is_new = CF_NEW |
|
|
1593 | is_destroyed = CF_DESTROYED |
|
|
1594 | CODE: |
|
|
1595 | RETVAL = boolSV (coro->flags & ix); |
|
|
1596 | OUTPUT: |
|
|
1597 | RETVAL |
|
|
1598 | |
|
|
1599 | void |
|
|
1600 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1601 | |
|
|
1602 | SV * |
|
|
1603 | has_stack (Coro::State coro) |
|
|
1604 | PROTOTYPE: $ |
|
|
1605 | CODE: |
|
|
1606 | RETVAL = boolSV (!!coro->cctx); |
|
|
1607 | OUTPUT: |
|
|
1608 | RETVAL |
|
|
1609 | |
|
|
1610 | int |
|
|
1611 | is_traced (Coro::State coro) |
|
|
1612 | PROTOTYPE: $ |
|
|
1613 | CODE: |
|
|
1614 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1615 | OUTPUT: |
|
|
1616 | RETVAL |
|
|
1617 | |
|
|
1618 | IV |
|
|
1619 | rss (Coro::State coro) |
|
|
1620 | PROTOTYPE: $ |
|
|
1621 | ALIAS: |
|
|
1622 | usecount = 1 |
|
|
1623 | CODE: |
|
|
1624 | switch (ix) |
|
|
1625 | { |
|
|
1626 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
|
|
1627 | case 1: RETVAL = coro->usecount; break; |
|
|
1628 | } |
|
|
1629 | OUTPUT: |
|
|
1630 | RETVAL |
|
|
1631 | |
|
|
1632 | |
1129 | MODULE = Coro::State PACKAGE = Coro |
1633 | MODULE = Coro::State PACKAGE = Coro |
1130 | |
1634 | |
1131 | BOOT: |
1635 | BOOT: |
1132 | { |
1636 | { |
1133 | int i; |
1637 | int i; |
|
|
1638 | |
|
|
1639 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1640 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1641 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
|
|
1642 | |
|
|
1643 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1644 | SvREADONLY_on (coro_current); |
1134 | |
1645 | |
1135 | coro_stash = gv_stashpv ("Coro", TRUE); |
1646 | coro_stash = gv_stashpv ("Coro", TRUE); |
1136 | |
1647 | |
1137 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1648 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1138 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1649 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1139 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1650 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1140 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1651 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1141 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1652 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1142 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1653 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1143 | |
1654 | |
1144 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1145 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1146 | |
|
|
1147 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1655 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1148 | coro_ready[i] = newAV (); |
1656 | coro_ready[i] = newAV (); |
1149 | |
1657 | |
1150 | { |
1658 | { |
1151 | SV *sv = perl_get_sv("Coro::API", 1); |
1659 | SV *sv = perl_get_sv("Coro::API", 1); |
1152 | |
1660 | |
1153 | coroapi.schedule = api_schedule; |
1661 | coroapi.schedule = api_schedule; |
1154 | coroapi.cede = api_cede; |
1662 | coroapi.cede = api_cede; |
|
|
1663 | coroapi.cede_notself = api_cede_notself; |
1155 | coroapi.ready = api_ready; |
1664 | coroapi.ready = api_ready; |
|
|
1665 | coroapi.is_ready = api_is_ready; |
1156 | coroapi.nready = &coro_nready; |
1666 | coroapi.nready = &coro_nready; |
1157 | coroapi.current = coro_current; |
1667 | coroapi.current = coro_current; |
1158 | |
1668 | |
1159 | GCoroAPI = &coroapi; |
1669 | GCoroAPI = &coroapi; |
1160 | sv_setiv (sv, (IV)&coroapi); |
1670 | sv_setiv (sv, (IV)&coroapi); |
1161 | SvREADONLY_on (sv); |
1671 | SvREADONLY_on (sv); |
1162 | } |
1672 | } |
1163 | } |
1673 | } |
|
|
1674 | |
|
|
1675 | void |
|
|
1676 | _set_current (SV *current) |
|
|
1677 | PROTOTYPE: $ |
|
|
1678 | CODE: |
|
|
1679 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
1680 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
1164 | |
1681 | |
1165 | int |
1682 | int |
1166 | prio (Coro::State coro, int newprio = 0) |
1683 | prio (Coro::State coro, int newprio = 0) |
1167 | ALIAS: |
1684 | ALIAS: |
1168 | nice = 1 |
1685 | nice = 1 |
… | |
… | |
1171 | RETVAL = coro->prio; |
1688 | RETVAL = coro->prio; |
1172 | |
1689 | |
1173 | if (items > 1) |
1690 | if (items > 1) |
1174 | { |
1691 | { |
1175 | if (ix) |
1692 | if (ix) |
1176 | newprio += coro->prio; |
1693 | newprio = coro->prio - newprio; |
1177 | |
1694 | |
1178 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1695 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1179 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1696 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1180 | |
1697 | |
1181 | coro->prio = newprio; |
1698 | coro->prio = newprio; |
1182 | } |
1699 | } |
1183 | } |
1700 | } |
|
|
1701 | OUTPUT: |
|
|
1702 | RETVAL |
1184 | |
1703 | |
1185 | void |
1704 | SV * |
1186 | ready (SV *self) |
1705 | ready (SV *self) |
1187 | PROTOTYPE: $ |
1706 | PROTOTYPE: $ |
1188 | CODE: |
1707 | CODE: |
1189 | api_ready (self); |
1708 | RETVAL = boolSV (api_ready (self)); |
|
|
1709 | OUTPUT: |
|
|
1710 | RETVAL |
1190 | |
1711 | |
1191 | int |
1712 | int |
1192 | nready (...) |
1713 | nready (...) |
1193 | PROTOTYPE: |
1714 | PROTOTYPE: |
1194 | CODE: |
1715 | CODE: |
1195 | RETVAL = coro_nready; |
1716 | RETVAL = coro_nready; |
1196 | OUTPUT: |
1717 | OUTPUT: |
1197 | RETVAL |
1718 | RETVAL |
1198 | |
1719 | |
|
|
1720 | # for async_pool speedup |
|
|
1721 | void |
|
|
1722 | _pool_1 (SV *cb) |
|
|
1723 | CODE: |
|
|
1724 | { |
|
|
1725 | struct coro *coro = SvSTATE (coro_current); |
|
|
1726 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1727 | AV *defav = GvAV (PL_defgv); |
|
|
1728 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1729 | AV *invoke_av; |
|
|
1730 | int i, len; |
|
|
1731 | |
|
|
1732 | if (!invoke) |
|
|
1733 | croak ("\3terminate\2\n"); |
|
|
1734 | |
|
|
1735 | SvREFCNT_dec (coro->saved_deffh); |
|
|
1736 | coro->saved_deffh = SvREFCNT_inc ((SV *)PL_defoutgv); |
|
|
1737 | |
|
|
1738 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1739 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1740 | |
|
|
1741 | invoke_av = (AV *)SvRV (invoke); |
|
|
1742 | len = av_len (invoke_av); |
|
|
1743 | |
|
|
1744 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1745 | |
|
|
1746 | if (len > 0) |
|
|
1747 | { |
|
|
1748 | av_fill (defav, len - 1); |
|
|
1749 | for (i = 0; i < len; ++i) |
|
|
1750 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1751 | } |
|
|
1752 | |
|
|
1753 | SvREFCNT_dec (invoke); |
|
|
1754 | } |
|
|
1755 | |
|
|
1756 | void |
|
|
1757 | _pool_2 (SV *cb) |
|
|
1758 | CODE: |
|
|
1759 | { |
|
|
1760 | struct coro *coro = SvSTATE (coro_current); |
|
|
1761 | |
|
|
1762 | sv_setsv (cb, &PL_sv_undef); |
|
|
1763 | |
|
|
1764 | SvREFCNT_dec ((SV *)PL_defoutgv); PL_defoutgv = (GV *)coro->saved_deffh; |
|
|
1765 | coro->saved_deffh = 0; |
|
|
1766 | |
|
|
1767 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1768 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1769 | croak ("\3terminate\2\n"); |
|
|
1770 | |
|
|
1771 | av_clear (GvAV (PL_defgv)); |
|
|
1772 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1773 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1774 | |
|
|
1775 | coro->prio = 0; |
|
|
1776 | |
|
|
1777 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1778 | api_trace (coro_current, 0); |
|
|
1779 | |
|
|
1780 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1781 | } |
|
|
1782 | |
|
|
1783 | |
1199 | MODULE = Coro::State PACKAGE = Coro::AIO |
1784 | MODULE = Coro::State PACKAGE = Coro::AIO |
1200 | |
1785 | |
1201 | SV * |
1786 | SV * |
1202 | _get_state () |
1787 | _get_state () |
1203 | CODE: |
1788 | CODE: |
1204 | { |
1789 | { |
1205 | struct { |
1790 | struct io_state *data; |
1206 | int errorno; |
|
|
1207 | int laststype; |
|
|
1208 | int laststatval; |
|
|
1209 | Stat_t statcache; |
|
|
1210 | } data; |
|
|
1211 | |
1791 | |
|
|
1792 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1793 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1794 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1795 | SvPOK_only (RETVAL); |
|
|
1796 | |
1212 | data.errorno = errno; |
1797 | data->errorno = errno; |
1213 | data.laststype = PL_laststype; |
1798 | data->laststype = PL_laststype; |
1214 | data.laststatval = PL_laststatval; |
1799 | data->laststatval = PL_laststatval; |
1215 | data.statcache = PL_statcache; |
1800 | data->statcache = PL_statcache; |
1216 | |
|
|
1217 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1218 | } |
1801 | } |
1219 | OUTPUT: |
1802 | OUTPUT: |
1220 | RETVAL |
1803 | RETVAL |
1221 | |
1804 | |
1222 | void |
1805 | void |
1223 | _set_state (char *data_) |
1806 | _set_state (char *data_) |
1224 | PROTOTYPE: $ |
1807 | PROTOTYPE: $ |
1225 | CODE: |
1808 | CODE: |
1226 | { |
1809 | { |
1227 | struct { |
1810 | struct io_state *data = (void *)data_; |
1228 | int errorno; |
|
|
1229 | int laststype; |
|
|
1230 | int laststatval; |
|
|
1231 | Stat_t statcache; |
|
|
1232 | } *data = (void *)data_; |
|
|
1233 | |
1811 | |
1234 | errno = data->errorno; |
1812 | errno = data->errorno; |
1235 | PL_laststype = data->laststype; |
1813 | PL_laststype = data->laststype; |
1236 | PL_laststatval = data->laststatval; |
1814 | PL_laststatval = data->laststatval; |
1237 | PL_statcache = data->statcache; |
1815 | PL_statcache = data->statcache; |
1238 | } |
1816 | } |
|
|
1817 | |