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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 <errno.h> |
75 | /* 5.8.7 */ |
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76 | #ifndef SvRV_set |
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77 | # define SvRV_set(s,v) SvRV(s) = (v) |
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78 | #endif |
33 | |
79 | |
34 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
80 | #if !__i386 && !__x86_64 && !__powerpc && !__m68k && !__alpha && !__mips && !__sparc64 |
35 | # undef STACKGUARD |
81 | # undef CORO_STACKGUARD |
36 | #endif |
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37 | |
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38 | #ifndef STACKGUARD |
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39 | # define STACKGUARD 0 |
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40 | #endif |
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41 | |
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42 | #ifdef HAVE_MMAP |
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43 | # include <unistd.h> |
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44 | # include <sys/mman.h> |
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45 | # ifndef MAP_ANONYMOUS |
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46 | # ifdef MAP_ANON |
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47 | # define MAP_ANONYMOUS MAP_ANON |
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48 | # else |
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49 | # undef HAVE_MMAP |
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50 | # endif |
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51 | # endif |
82 | #endif |
52 | # include <limits.h> |
83 | |
53 | # ifndef PAGESIZE |
84 | #ifndef CORO_STACKGUARD |
54 | # define PAGESIZE pagesize |
85 | # define CORO_STACKGUARD 0 |
55 | # define BOOT_PAGESIZE pagesize = sysconf (_SC_PAGESIZE) |
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56 | static long pagesize; |
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57 | # else |
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58 | # define BOOT_PAGESIZE |
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59 | # endif |
86 | #endif |
60 | #endif |
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61 | |
87 | |
62 | #define SUB_INIT "Coro::State::initialize" |
88 | /* prefer perl internal functions over our own? */ |
63 | #define UCORO_STATE "_coro_state" |
89 | #ifndef CORO_PREFER_PERL_FUNCTIONS |
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90 | # define CORO_PREFER_PERL_FUNCTIONS 0 |
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91 | #endif |
64 | |
92 | |
65 | /* The next macro should declare a variable stacklevel that contains and approximation |
93 | /* The next macros try to return the current stack pointer, in an as |
66 | * to the current C stack pointer. Its property is that it changes with each call |
94 | * portable way as possible. */ |
67 | * and should be unique. */ |
95 | #define dSTACKLEVEL volatile char stacklevel |
68 | #define dSTACKLEVEL void *stacklevel = &stacklevel |
96 | #define STACKLEVEL ((void *)&stacklevel) |
69 | |
97 | |
70 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
98 | #define IN_DESTRUCT (PL_main_cv == Nullcv) |
71 | |
99 | |
72 | #define labs(l) ((l) >= 0 ? (l) : -(l)) |
100 | #if __GNUC__ >= 3 |
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101 | # define attribute(x) __attribute__(x) |
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102 | # define BARRIER __asm__ __volatile__ ("" : : : "memory") |
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103 | #else |
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104 | # define attribute(x) |
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105 | # define BARRIER |
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106 | #endif |
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107 | |
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108 | #define NOINLINE attribute ((noinline)) |
73 | |
109 | |
74 | #include "CoroAPI.h" |
110 | #include "CoroAPI.h" |
75 | |
111 | |
76 | #ifdef USE_ITHREADS |
112 | #ifdef USE_ITHREADS |
77 | static perl_mutex coro_mutex; |
113 | static perl_mutex coro_mutex; |
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80 | #else |
116 | #else |
81 | # define LOCK (void)0 |
117 | # define LOCK (void)0 |
82 | # define UNLOCK (void)0 |
118 | # define UNLOCK (void)0 |
83 | #endif |
119 | #endif |
84 | |
120 | |
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121 | /* helper storage struct for Coro::AIO */ |
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122 | struct io_state |
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123 | { |
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124 | int errorno; |
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125 | I32 laststype; |
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126 | int laststatval; |
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127 | Stat_t statcache; |
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128 | }; |
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129 | |
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130 | static size_t coro_stacksize = CORO_STACKSIZE; |
85 | static struct CoroAPI coroapi; |
131 | static struct CoroAPI coroapi; |
86 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
132 | static AV *main_mainstack; /* used to differentiate between $main and others */ |
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133 | static JMPENV *main_top_env; |
87 | static HV *coro_state_stash; |
134 | static HV *coro_state_stash, *coro_stash; |
88 | static SV *ucoro_state_sv; |
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89 | static U32 ucoro_state_hash; |
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90 | static SV *coro_mortal; /* will be freed after next transfer */ |
135 | static SV *coro_mortal; /* will be freed after next transfer */ |
91 | |
136 | |
92 | /* this is actually not only the c stack but also c registers etc... */ |
137 | static GV *irsgv; /* $/ */ |
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138 | |
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139 | /* async_pool helper stuff */ |
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140 | static SV *sv_pool_rss; |
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141 | static SV *sv_pool_size; |
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142 | static AV *av_async_pool; |
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143 | |
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144 | static struct coro_cctx *cctx_first; |
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145 | static int cctx_count, cctx_idle; |
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146 | |
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147 | enum { |
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148 | CC_MAPPED = 0x01, |
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149 | CC_NOREUSE = 0x02, /* throw this away after tracing */ |
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150 | CC_TRACE = 0x04, |
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151 | CC_TRACE_SUB = 0x08, /* trace sub calls */ |
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152 | CC_TRACE_LINE = 0x10, /* trace each statement */ |
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153 | CC_TRACE_ALL = CC_TRACE_SUB | CC_TRACE_LINE, |
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154 | }; |
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155 | |
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156 | /* this is a structure representing a c-level coroutine */ |
93 | typedef struct { |
157 | typedef struct coro_cctx { |
94 | int refcnt; /* pointer reference counter */ |
158 | struct coro_cctx *next; |
95 | int usecnt; /* shared by how many coroutines */ |
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96 | int gencnt; /* generation counter */ |
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97 | |
159 | |
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160 | /* the stack */ |
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161 | void *sptr; |
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162 | size_t ssize; |
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163 | |
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164 | /* cpu state */ |
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165 | void *idle_sp; /* sp of top-level transfer/schedule/cede call */ |
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166 | JMPENV *idle_te; /* same as idle_sp, but for top_env, TODO: remove once stable */ |
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167 | JMPENV *top_env; |
98 | coro_context cctx; |
168 | coro_context cctx; |
99 | |
169 | |
100 | void *sptr; |
170 | #if CORO_USE_VALGRIND |
101 | long ssize; /* positive == mmap, otherwise malloc */ |
171 | int valgrind_id; |
102 | } coro_stack; |
172 | #endif |
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173 | unsigned char flags; |
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174 | } coro_cctx; |
103 | |
175 | |
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176 | enum { |
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177 | CF_RUNNING = 0x0001, /* coroutine is running */ |
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178 | CF_READY = 0x0002, /* coroutine is ready */ |
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179 | CF_NEW = 0x0004, /* has never been switched to */ |
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180 | CF_DESTROYED = 0x0008, /* coroutine data has been freed */ |
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181 | }; |
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182 | |
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183 | /* this is a structure representing a perl-level coroutine */ |
104 | struct coro { |
184 | struct coro { |
105 | /* the optional C context */ |
185 | /* the c coroutine allocated to this perl coroutine, if any */ |
106 | coro_stack *stack; |
186 | coro_cctx *cctx; |
107 | void *cursp; |
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108 | int gencnt; |
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109 | |
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110 | /* optionally saved, might be zero */ |
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111 | AV *defav; |
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112 | SV *defsv; |
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113 | SV *errsv; |
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114 | |
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115 | /* saved global state not related to stacks */ |
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116 | U8 dowarn; |
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117 | I32 in_eval; |
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118 | |
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119 | /* the stacks and related info (callchain etc..) */ |
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120 | PERL_SI *curstackinfo; |
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121 | AV *curstack; |
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122 | AV *mainstack; |
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123 | SV **stack_sp; |
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124 | OP *op; |
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125 | SV **curpad; |
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126 | AV *comppad; |
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127 | CV *compcv; |
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128 | SV **stack_base; |
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129 | SV **stack_max; |
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130 | SV **tmps_stack; |
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131 | I32 tmps_floor; |
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132 | I32 tmps_ix; |
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133 | I32 tmps_max; |
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134 | I32 *markstack; |
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135 | I32 *markstack_ptr; |
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136 | I32 *markstack_max; |
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137 | I32 *scopestack; |
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138 | I32 scopestack_ix; |
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139 | I32 scopestack_max; |
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140 | ANY *savestack; |
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141 | I32 savestack_ix; |
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142 | I32 savestack_max; |
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143 | OP **retstack; |
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144 | I32 retstack_ix; |
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145 | I32 retstack_max; |
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146 | PMOP *curpm; |
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147 | COP *curcop; |
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148 | JMPENV *top_env; |
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149 | |
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150 | /* coro process data */ |
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151 | int prio; |
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152 | |
187 | |
153 | /* data associated with this coroutine (initial args) */ |
188 | /* data associated with this coroutine (initial args) */ |
154 | AV *args; |
189 | AV *args; |
155 | int refcnt; |
190 | int refcnt; |
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191 | int flags; /* CF_ flags */ |
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192 | |
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193 | /* optionally saved, might be zero */ |
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194 | AV *defav; /* @_ */ |
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195 | SV *defsv; /* $_ */ |
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196 | SV *errsv; /* $@ */ |
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197 | IO *deffh; /* default filehandle */ |
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198 | SV *irssv; /* $/ */ |
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199 | SV *irssv_sv; /* real $/ cache */ |
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200 | |
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201 | #define VAR(name,type) type name; |
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202 | # include "state.h" |
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203 | #undef VAR |
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204 | |
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205 | /* statistics */ |
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206 | int usecount; /* number of switches to this coro */ |
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207 | |
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208 | /* coro process data */ |
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209 | int prio; |
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210 | |
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211 | /* linked list */ |
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212 | struct coro *next, *prev; |
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213 | HV *hv; /* the perl hash associated with this coro, if any */ |
156 | }; |
214 | }; |
157 | |
215 | |
158 | typedef struct coro *Coro__State; |
216 | typedef struct coro *Coro__State; |
159 | typedef struct coro *Coro__State_or_hashref; |
217 | typedef struct coro *Coro__State_or_hashref; |
160 | |
218 | |
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219 | /** Coro ********************************************************************/ |
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220 | |
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221 | #define PRIO_MAX 3 |
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222 | #define PRIO_HIGH 1 |
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223 | #define PRIO_NORMAL 0 |
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224 | #define PRIO_LOW -1 |
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225 | #define PRIO_IDLE -3 |
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226 | #define PRIO_MIN -4 |
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227 | |
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228 | /* for Coro.pm */ |
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229 | static SV *coro_current; |
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230 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
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231 | static int coro_nready; |
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232 | static struct coro *coro_first; |
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233 | |
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234 | /** lowlevel stuff **********************************************************/ |
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235 | |
161 | static AV * |
236 | static AV * |
162 | coro_clone_padlist (pTHX_ CV *cv) |
237 | coro_clone_padlist (pTHX_ CV *cv) |
163 | { |
238 | { |
164 | AV *padlist = CvPADLIST (cv); |
239 | AV *padlist = CvPADLIST (cv); |
165 | AV *newpadlist, *newpad; |
240 | AV *newpadlist, *newpad; |
166 | |
241 | |
167 | newpadlist = newAV (); |
242 | newpadlist = newAV (); |
168 | AvREAL_off (newpadlist); |
243 | AvREAL_off (newpadlist); |
169 | #if PERL_VERSION < 9 |
244 | #if PERL_VERSION_ATLEAST (5,9,0) |
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245 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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246 | #else |
170 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
247 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1, 1); |
171 | #else |
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172 | Perl_pad_push (aTHX_ padlist, AvFILLp (padlist) + 1); |
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173 | #endif |
248 | #endif |
174 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
249 | newpad = (AV *)AvARRAY (padlist)[AvFILLp (padlist)]; |
175 | --AvFILLp (padlist); |
250 | --AvFILLp (padlist); |
176 | |
251 | |
177 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
252 | av_store (newpadlist, 0, SvREFCNT_inc (*av_fetch (padlist, 0, FALSE))); |
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221 | |
296 | |
222 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
297 | #define PERL_MAGIC_coro PERL_MAGIC_ext |
223 | |
298 | |
224 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
299 | static MGVTBL vtbl_coro = {0, 0, 0, 0, coro_cv_free}; |
225 | |
300 | |
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301 | #define CORO_MAGIC(cv) \ |
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302 | SvMAGIC (cv) \ |
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303 | ? SvMAGIC (cv)->mg_type == PERL_MAGIC_coro \ |
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304 | ? SvMAGIC (cv) \ |
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305 | : mg_find ((SV *)cv, PERL_MAGIC_coro) \ |
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306 | : 0 |
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307 | |
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308 | static struct coro * |
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309 | SvSTATE_ (pTHX_ SV *coro) |
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310 | { |
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311 | HV *stash; |
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312 | MAGIC *mg; |
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313 | |
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314 | if (SvROK (coro)) |
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315 | coro = SvRV (coro); |
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316 | |
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317 | if (SvTYPE (coro) != SVt_PVHV) |
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318 | croak ("Coro::State object required"); |
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319 | |
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320 | stash = SvSTASH (coro); |
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321 | if (stash != coro_stash && stash != coro_state_stash) |
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322 | { |
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323 | /* very slow, but rare, check */ |
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324 | if (!sv_derived_from (sv_2mortal (newRV_inc (coro)), "Coro::State")) |
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325 | croak ("Coro::State object required"); |
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326 | } |
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327 | |
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328 | mg = CORO_MAGIC (coro); |
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329 | return (struct coro *)mg->mg_ptr; |
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330 | } |
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331 | |
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332 | #define SvSTATE(sv) SvSTATE_ (aTHX_ (sv)) |
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333 | |
226 | /* the next two functions merely cache the padlists */ |
334 | /* the next two functions merely cache the padlists */ |
227 | static void |
335 | static void |
228 | get_padlist (pTHX_ CV *cv) |
336 | get_padlist (pTHX_ CV *cv) |
229 | { |
337 | { |
230 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
338 | MAGIC *mg = CORO_MAGIC (cv); |
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339 | AV *av; |
231 | |
340 | |
232 | if (mg && AvFILLp ((AV *)mg->mg_obj) >= 0) |
341 | if (mg && AvFILLp ((av = (AV *)mg->mg_obj)) >= 0) |
233 | CvPADLIST (cv) = (AV *)av_pop ((AV *)mg->mg_obj); |
342 | CvPADLIST (cv) = (AV *)AvARRAY (av)[AvFILLp (av)--]; |
234 | else |
343 | else |
235 | { |
344 | { |
236 | #if 0 |
345 | #if CORO_PREFER_PERL_FUNCTIONS |
237 | /* this should work - but it doesn't :( */ |
346 | /* this is probably cleaner, but also slower? */ |
238 | CV *cp = Perl_cv_clone (aTHX_ cv); |
347 | CV *cp = Perl_cv_clone (cv); |
239 | CvPADLIST (cv) = CvPADLIST (cp); |
348 | CvPADLIST (cv) = CvPADLIST (cp); |
240 | CvPADLIST (cp) = 0; |
349 | CvPADLIST (cp) = 0; |
241 | SvREFCNT_dec (cp); |
350 | SvREFCNT_dec (cp); |
242 | #else |
351 | #else |
243 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
352 | CvPADLIST (cv) = coro_clone_padlist (aTHX_ cv); |
… | |
… | |
246 | } |
355 | } |
247 | |
356 | |
248 | static void |
357 | static void |
249 | put_padlist (pTHX_ CV *cv) |
358 | put_padlist (pTHX_ CV *cv) |
250 | { |
359 | { |
251 | MAGIC *mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
360 | MAGIC *mg = CORO_MAGIC (cv); |
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361 | AV *av; |
252 | |
362 | |
253 | if (!mg) |
363 | if (!mg) |
254 | { |
364 | { |
255 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
365 | sv_magic ((SV *)cv, 0, PERL_MAGIC_coro, 0, 0); |
256 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
366 | mg = mg_find ((SV *)cv, PERL_MAGIC_coro); |
257 | mg->mg_virtual = &vtbl_coro; |
367 | mg->mg_virtual = &vtbl_coro; |
258 | mg->mg_obj = (SV *)newAV (); |
368 | mg->mg_obj = (SV *)newAV (); |
259 | } |
369 | } |
260 | |
370 | |
261 | av_push ((AV *)mg->mg_obj, (SV *)CvPADLIST (cv)); |
371 | av = (AV *)mg->mg_obj; |
262 | } |
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263 | |
372 | |
264 | #define SB do { |
373 | if (AvFILLp (av) >= AvMAX (av)) |
265 | #define SE } while (0) |
374 | av_extend (av, AvMAX (av) + 1); |
266 | |
375 | |
267 | #define LOAD(state) load_state(aTHX_ (state)); |
376 | AvARRAY (av)[++AvFILLp (av)] = (SV *)CvPADLIST (cv); |
268 | #define SAVE(state,flags) save_state(aTHX_ (state),(flags)); |
377 | } |
269 | |
378 | |
270 | #define REPLACE_SV(sv,val) SB SvREFCNT_dec(sv); (sv) = (val); (val) = 0; SE |
379 | /** load & save, init *******************************************************/ |
271 | |
380 | |
272 | static void |
381 | static void |
273 | load_state(pTHX_ Coro__State c) |
382 | load_perl (pTHX_ Coro__State c) |
274 | { |
383 | { |
275 | PL_dowarn = c->dowarn; |
384 | #define VAR(name,type) PL_ ## name = c->name; |
276 | PL_in_eval = c->in_eval; |
385 | # include "state.h" |
|
|
386 | #undef VAR |
277 | |
387 | |
278 | PL_curstackinfo = c->curstackinfo; |
388 | GvSV (PL_defgv) = c->defsv; |
279 | PL_curstack = c->curstack; |
389 | GvAV (PL_defgv) = c->defav; |
280 | PL_mainstack = c->mainstack; |
390 | GvSV (PL_errgv) = c->errsv; |
281 | PL_stack_sp = c->stack_sp; |
391 | GvIOp(PL_defoutgv) = c->deffh; |
282 | PL_op = c->op; |
392 | PL_rs = c->irssv; |
283 | PL_curpad = c->curpad; |
393 | GvSV (irsgv) = c->irssv_sv; |
284 | PL_comppad = c->comppad; |
|
|
285 | PL_compcv = c->compcv; |
|
|
286 | PL_stack_base = c->stack_base; |
|
|
287 | PL_stack_max = c->stack_max; |
|
|
288 | PL_tmps_stack = c->tmps_stack; |
|
|
289 | PL_tmps_floor = c->tmps_floor; |
|
|
290 | PL_tmps_ix = c->tmps_ix; |
|
|
291 | PL_tmps_max = c->tmps_max; |
|
|
292 | PL_markstack = c->markstack; |
|
|
293 | PL_markstack_ptr = c->markstack_ptr; |
|
|
294 | PL_markstack_max = c->markstack_max; |
|
|
295 | PL_scopestack = c->scopestack; |
|
|
296 | PL_scopestack_ix = c->scopestack_ix; |
|
|
297 | PL_scopestack_max = c->scopestack_max; |
|
|
298 | PL_savestack = c->savestack; |
|
|
299 | PL_savestack_ix = c->savestack_ix; |
|
|
300 | PL_savestack_max = c->savestack_max; |
|
|
301 | #if PERL_VERSION < 9 |
|
|
302 | PL_retstack = c->retstack; |
|
|
303 | PL_retstack_ix = c->retstack_ix; |
|
|
304 | PL_retstack_max = c->retstack_max; |
|
|
305 | #endif |
|
|
306 | PL_curpm = c->curpm; |
|
|
307 | PL_curcop = c->curcop; |
|
|
308 | PL_top_env = c->top_env; |
|
|
309 | |
|
|
310 | if (c->defav) REPLACE_SV (GvAV (PL_defgv), c->defav); |
|
|
311 | if (c->defsv) REPLACE_SV (DEFSV , c->defsv); |
|
|
312 | if (c->errsv) REPLACE_SV (ERRSV , c->errsv); |
|
|
313 | |
394 | |
314 | { |
395 | { |
315 | dSP; |
396 | dSP; |
316 | CV *cv; |
397 | CV *cv; |
317 | |
398 | |
318 | /* now do the ugly restore mess */ |
399 | /* now do the ugly restore mess */ |
319 | while ((cv = (CV *)POPs)) |
400 | while ((cv = (CV *)POPs)) |
320 | { |
401 | { |
321 | AV *padlist = (AV *)POPs; |
|
|
322 | |
|
|
323 | if (padlist) |
|
|
324 | { |
|
|
325 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
402 | put_padlist (aTHX_ cv); /* mark this padlist as available */ |
326 | CvPADLIST(cv) = padlist; |
403 | CvDEPTH (cv) = PTR2IV (POPs); |
327 | } |
404 | CvPADLIST (cv) = (AV *)POPs; |
328 | |
|
|
329 | ++CvDEPTH(cv); |
|
|
330 | } |
405 | } |
331 | |
406 | |
332 | PUTBACK; |
407 | PUTBACK; |
333 | } |
408 | } |
334 | } |
409 | } |
335 | |
410 | |
336 | static void |
411 | static void |
337 | save_state(pTHX_ Coro__State c, int flags) |
412 | save_perl (pTHX_ Coro__State c) |
338 | { |
413 | { |
339 | { |
414 | { |
340 | dSP; |
415 | dSP; |
341 | I32 cxix = cxstack_ix; |
416 | I32 cxix = cxstack_ix; |
342 | PERL_CONTEXT *ccstk = cxstack; |
417 | PERL_CONTEXT *ccstk = cxstack; |
… | |
… | |
345 | /* |
420 | /* |
346 | * the worst thing you can imagine happens first - we have to save |
421 | * the worst thing you can imagine happens first - we have to save |
347 | * (and reinitialize) all cv's in the whole callchain :( |
422 | * (and reinitialize) all cv's in the whole callchain :( |
348 | */ |
423 | */ |
349 | |
424 | |
350 | PUSHs (Nullsv); |
425 | XPUSHs (Nullsv); |
351 | /* this loop was inspired by pp_caller */ |
426 | /* this loop was inspired by pp_caller */ |
352 | for (;;) |
427 | for (;;) |
353 | { |
428 | { |
354 | while (cxix >= 0) |
429 | while (cxix >= 0) |
355 | { |
430 | { |
356 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
431 | PERL_CONTEXT *cx = &ccstk[cxix--]; |
357 | |
432 | |
358 | if (CxTYPE(cx) == CXt_SUB) |
433 | if (CxTYPE (cx) == CXt_SUB || CxTYPE (cx) == CXt_FORMAT) |
359 | { |
434 | { |
360 | CV *cv = cx->blk_sub.cv; |
435 | CV *cv = cx->blk_sub.cv; |
|
|
436 | |
361 | if (CvDEPTH(cv)) |
437 | if (CvDEPTH (cv)) |
362 | { |
438 | { |
363 | EXTEND (SP, CvDEPTH(cv)*2); |
439 | EXTEND (SP, 3); |
364 | |
|
|
365 | while (--CvDEPTH(cv)) |
|
|
366 | { |
|
|
367 | /* this tells the restore code to increment CvDEPTH */ |
|
|
368 | PUSHs (Nullsv); |
|
|
369 | PUSHs ((SV *)cv); |
|
|
370 | } |
|
|
371 | |
|
|
372 | PUSHs ((SV *)CvPADLIST(cv)); |
440 | PUSHs ((SV *)CvPADLIST (cv)); |
|
|
441 | PUSHs (INT2PTR (SV *, CvDEPTH (cv))); |
373 | PUSHs ((SV *)cv); |
442 | PUSHs ((SV *)cv); |
374 | |
443 | |
|
|
444 | CvDEPTH (cv) = 0; |
375 | get_padlist (aTHX_ cv); |
445 | get_padlist (aTHX_ cv); |
376 | } |
446 | } |
377 | } |
447 | } |
378 | #ifdef CXt_FORMAT |
|
|
379 | else if (CxTYPE(cx) == CXt_FORMAT) |
|
|
380 | { |
|
|
381 | /* I never used formats, so how should I know how these are implemented? */ |
|
|
382 | /* my bold guess is as a simple, plain sub... */ |
|
|
383 | croak ("CXt_FORMAT not yet handled. Don't switch coroutines from within formats"); |
|
|
384 | } |
|
|
385 | #endif |
|
|
386 | } |
448 | } |
387 | |
449 | |
388 | if (top_si->si_type == PERLSI_MAIN) |
450 | if (top_si->si_type == PERLSI_MAIN) |
389 | break; |
451 | break; |
390 | |
452 | |
391 | top_si = top_si->si_prev; |
453 | top_si = top_si->si_prev; |
392 | ccstk = top_si->si_cxstack; |
454 | ccstk = top_si->si_cxstack; |
393 | cxix = top_si->si_cxix; |
455 | cxix = top_si->si_cxix; |
394 | } |
456 | } |
395 | |
457 | |
396 | PUTBACK; |
458 | PUTBACK; |
397 | } |
459 | } |
398 | |
460 | |
399 | c->defav = flags & TRANSFER_SAVE_DEFAV ? (AV *)SvREFCNT_inc (GvAV (PL_defgv)) : 0; |
461 | c->defav = GvAV (PL_defgv); |
400 | c->defsv = flags & TRANSFER_SAVE_DEFSV ? SvREFCNT_inc (DEFSV) : 0; |
462 | c->defsv = DEFSV; |
401 | c->errsv = flags & TRANSFER_SAVE_ERRSV ? SvREFCNT_inc (ERRSV) : 0; |
463 | c->errsv = ERRSV; |
|
|
464 | c->deffh = GvIOp (PL_defoutgv); |
|
|
465 | c->irssv = PL_rs; |
|
|
466 | c->irssv_sv = GvSV (irsgv); |
402 | |
467 | |
403 | c->dowarn = PL_dowarn; |
468 | #define VAR(name,type)c->name = PL_ ## name; |
404 | c->in_eval = PL_in_eval; |
469 | # include "state.h" |
405 | |
470 | #undef VAR |
406 | c->curstackinfo = PL_curstackinfo; |
|
|
407 | c->curstack = PL_curstack; |
|
|
408 | c->mainstack = PL_mainstack; |
|
|
409 | c->stack_sp = PL_stack_sp; |
|
|
410 | c->op = PL_op; |
|
|
411 | c->curpad = PL_curpad; |
|
|
412 | c->comppad = PL_comppad; |
|
|
413 | c->compcv = PL_compcv; |
|
|
414 | c->stack_base = PL_stack_base; |
|
|
415 | c->stack_max = PL_stack_max; |
|
|
416 | c->tmps_stack = PL_tmps_stack; |
|
|
417 | c->tmps_floor = PL_tmps_floor; |
|
|
418 | c->tmps_ix = PL_tmps_ix; |
|
|
419 | c->tmps_max = PL_tmps_max; |
|
|
420 | c->markstack = PL_markstack; |
|
|
421 | c->markstack_ptr = PL_markstack_ptr; |
|
|
422 | c->markstack_max = PL_markstack_max; |
|
|
423 | c->scopestack = PL_scopestack; |
|
|
424 | c->scopestack_ix = PL_scopestack_ix; |
|
|
425 | c->scopestack_max = PL_scopestack_max; |
|
|
426 | c->savestack = PL_savestack; |
|
|
427 | c->savestack_ix = PL_savestack_ix; |
|
|
428 | c->savestack_max = PL_savestack_max; |
|
|
429 | #if PERL_VERSION < 9 |
|
|
430 | c->retstack = PL_retstack; |
|
|
431 | c->retstack_ix = PL_retstack_ix; |
|
|
432 | c->retstack_max = PL_retstack_max; |
|
|
433 | #endif |
|
|
434 | c->curpm = PL_curpm; |
|
|
435 | c->curcop = PL_curcop; |
|
|
436 | c->top_env = PL_top_env; |
|
|
437 | } |
471 | } |
438 | |
472 | |
439 | /* |
473 | /* |
440 | * allocate various perl stacks. This is an exact copy |
474 | * allocate various perl stacks. This is an exact copy |
441 | * of perl.c:init_stacks, except that it uses less memory |
475 | * of perl.c:init_stacks, except that it uses less memory |
442 | * on the (sometimes correct) assumption that coroutines do |
476 | * on the (sometimes correct) assumption that coroutines do |
443 | * not usually need a lot of stackspace. |
477 | * not usually need a lot of stackspace. |
444 | */ |
478 | */ |
|
|
479 | #if CORO_PREFER_PERL_FUNCTIONS |
|
|
480 | # define coro_init_stacks init_stacks |
|
|
481 | #else |
445 | static void |
482 | static void |
446 | coro_init_stacks (pTHX) |
483 | coro_init_stacks (pTHX) |
447 | { |
484 | { |
448 | LOCK; |
485 | PL_curstackinfo = new_stackinfo(64, 6); |
449 | |
|
|
450 | PL_curstackinfo = new_stackinfo(96, 1024/sizeof(PERL_CONTEXT) - 1); |
|
|
451 | PL_curstackinfo->si_type = PERLSI_MAIN; |
486 | PL_curstackinfo->si_type = PERLSI_MAIN; |
452 | PL_curstack = PL_curstackinfo->si_stack; |
487 | PL_curstack = PL_curstackinfo->si_stack; |
453 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
488 | PL_mainstack = PL_curstack; /* remember in case we switch stacks */ |
454 | |
489 | |
455 | PL_stack_base = AvARRAY(PL_curstack); |
490 | PL_stack_base = AvARRAY(PL_curstack); |
456 | PL_stack_sp = PL_stack_base; |
491 | PL_stack_sp = PL_stack_base; |
457 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
492 | PL_stack_max = PL_stack_base + AvMAX(PL_curstack); |
458 | |
493 | |
459 | New(50,PL_tmps_stack,96,SV*); |
494 | New(50,PL_tmps_stack,64,SV*); |
460 | PL_tmps_floor = -1; |
495 | PL_tmps_floor = -1; |
461 | PL_tmps_ix = -1; |
496 | PL_tmps_ix = -1; |
462 | PL_tmps_max = 96; |
497 | PL_tmps_max = 64; |
463 | |
498 | |
464 | New(54,PL_markstack,16,I32); |
499 | New(54,PL_markstack,16,I32); |
465 | PL_markstack_ptr = PL_markstack; |
500 | PL_markstack_ptr = PL_markstack; |
466 | PL_markstack_max = PL_markstack + 16; |
501 | PL_markstack_max = PL_markstack + 16; |
467 | |
502 | |
… | |
… | |
471 | |
506 | |
472 | New(54,PL_scopestack,16,I32); |
507 | New(54,PL_scopestack,16,I32); |
473 | PL_scopestack_ix = 0; |
508 | PL_scopestack_ix = 0; |
474 | PL_scopestack_max = 16; |
509 | PL_scopestack_max = 16; |
475 | |
510 | |
476 | New(54,PL_savestack,96,ANY); |
511 | New(54,PL_savestack,64,ANY); |
477 | PL_savestack_ix = 0; |
512 | PL_savestack_ix = 0; |
478 | PL_savestack_max = 96; |
513 | PL_savestack_max = 64; |
479 | |
514 | |
480 | #if PERL_VERSION < 9 |
515 | #if !PERL_VERSION_ATLEAST (5,9,0) |
481 | New(54,PL_retstack,8,OP*); |
516 | New(54,PL_retstack,4,OP*); |
482 | PL_retstack_ix = 0; |
517 | PL_retstack_ix = 0; |
483 | PL_retstack_max = 8; |
518 | PL_retstack_max = 4; |
484 | #endif |
519 | #endif |
485 | |
|
|
486 | UNLOCK; |
|
|
487 | } |
520 | } |
|
|
521 | #endif |
488 | |
522 | |
489 | /* |
523 | /* |
490 | * destroy the stacks, the callchain etc... |
524 | * destroy the stacks, the callchain etc... |
491 | */ |
525 | */ |
492 | static void |
526 | static void |
493 | destroy_stacks(pTHX) |
527 | coro_destroy_stacks (pTHX) |
494 | { |
528 | { |
495 | if (!IN_DESTRUCT) |
|
|
496 | { |
|
|
497 | /* is this ugly, I ask? */ |
|
|
498 | LEAVE_SCOPE (0); |
|
|
499 | |
|
|
500 | /* sure it is, but more important: is it correct?? :/ */ |
|
|
501 | FREETMPS; |
|
|
502 | |
|
|
503 | /*POPSTACK_TO (PL_mainstack);*//*D*//*use*/ |
|
|
504 | } |
|
|
505 | |
|
|
506 | while (PL_curstackinfo->si_next) |
529 | while (PL_curstackinfo->si_next) |
507 | PL_curstackinfo = PL_curstackinfo->si_next; |
530 | PL_curstackinfo = PL_curstackinfo->si_next; |
508 | |
531 | |
509 | while (PL_curstackinfo) |
532 | while (PL_curstackinfo) |
510 | { |
533 | { |
511 | PERL_SI *p = PL_curstackinfo->si_prev; |
534 | PERL_SI *p = PL_curstackinfo->si_prev; |
512 | |
535 | |
513 | { /*D*//*remove*/ |
|
|
514 | dSP; |
|
|
515 | SWITCHSTACK (PL_curstack, PL_curstackinfo->si_stack); |
|
|
516 | PUTBACK; /* possibly superfluous */ |
|
|
517 | } |
|
|
518 | |
|
|
519 | if (!IN_DESTRUCT) |
536 | if (!IN_DESTRUCT) |
520 | { |
|
|
521 | dounwind (-1);/*D*//*remove*/ |
|
|
522 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
537 | SvREFCNT_dec (PL_curstackinfo->si_stack); |
523 | } |
|
|
524 | |
538 | |
525 | Safefree (PL_curstackinfo->si_cxstack); |
539 | Safefree (PL_curstackinfo->si_cxstack); |
526 | Safefree (PL_curstackinfo); |
540 | Safefree (PL_curstackinfo); |
527 | PL_curstackinfo = p; |
541 | PL_curstackinfo = p; |
528 | } |
542 | } |
529 | |
543 | |
530 | Safefree (PL_tmps_stack); |
544 | Safefree (PL_tmps_stack); |
531 | Safefree (PL_markstack); |
545 | Safefree (PL_markstack); |
532 | Safefree (PL_scopestack); |
546 | Safefree (PL_scopestack); |
533 | Safefree (PL_savestack); |
547 | Safefree (PL_savestack); |
534 | #if PERL_VERSION < 9 |
548 | #if !PERL_VERSION_ATLEAST (5,9,0) |
535 | Safefree (PL_retstack); |
549 | Safefree (PL_retstack); |
536 | #endif |
550 | #endif |
537 | } |
551 | } |
538 | |
552 | |
539 | static void |
553 | static size_t |
540 | allocate_stack (Coro__State ctx, int alloc) |
554 | coro_rss (pTHX_ struct coro *coro) |
541 | { |
555 | { |
542 | coro_stack *stack; |
556 | size_t rss = sizeof (coro); |
543 | |
557 | |
544 | New (0, stack, 1, coro_stack); |
558 | if (coro->mainstack) |
545 | |
|
|
546 | stack->refcnt = 1; |
|
|
547 | stack->usecnt = 1; |
|
|
548 | stack->gencnt = ctx->gencnt = 0; |
|
|
549 | |
|
|
550 | if (alloc) |
|
|
551 | { |
559 | { |
552 | #if HAVE_MMAP |
560 | if (coro->flags & CF_RUNNING) |
553 | stack->ssize = ((STACKSIZE * sizeof (long) + PAGESIZE - 1) / PAGESIZE + STACKGUARD) * PAGESIZE; /* mmap should do allocate-on-write for us */ |
|
|
554 | stack->sptr = mmap (0, stack->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
555 | if (stack->sptr != (void *)-1) |
|
|
556 | { |
561 | { |
557 | # if STACKGUARD |
562 | #define VAR(name,type)coro->name = PL_ ## name; |
558 | mprotect (stack->sptr, STACKGUARD * PAGESIZE, PROT_NONE); |
563 | # include "state.h" |
559 | # endif |
564 | #undef VAR |
560 | } |
565 | } |
561 | else |
|
|
562 | #endif |
|
|
563 | { |
|
|
564 | stack->ssize = - (STACKSIZE * (long)sizeof (long)); |
|
|
565 | New (0, stack->sptr, STACKSIZE, long); |
|
|
566 | } |
|
|
567 | } |
|
|
568 | else |
|
|
569 | stack->sptr = 0; |
|
|
570 | |
566 | |
571 | ctx->stack = stack; |
567 | rss += sizeof (coro->curstackinfo); |
572 | } |
568 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstackinfo->si_stack)) * sizeof (SV *); |
|
|
569 | rss += (coro->curstackinfo->si_cxmax + 1) * sizeof (PERL_CONTEXT); |
|
|
570 | rss += sizeof (struct xpvav) + (1 + AvFILL (coro->curstack)) * sizeof (SV *); |
|
|
571 | rss += coro->tmps_max * sizeof (SV *); |
|
|
572 | rss += (coro->markstack_max - coro->markstack_ptr) * sizeof (I32); |
|
|
573 | rss += coro->scopestack_max * sizeof (I32); |
|
|
574 | rss += coro->savestack_max * sizeof (ANY); |
573 | |
575 | |
574 | static void |
576 | #if !PERL_VERSION_ATLEAST (5,9,0) |
575 | deallocate_stack (Coro__State ctx) |
577 | rss += coro->retstack_max * sizeof (OP *); |
576 | { |
578 | #endif |
577 | coro_stack *stack = ctx->stack; |
|
|
578 | |
|
|
579 | ctx->stack = 0; |
|
|
580 | |
|
|
581 | if (stack) |
|
|
582 | { |
579 | } |
583 | if (!--stack->refcnt) |
|
|
584 | { |
|
|
585 | #ifdef HAVE_MMAP |
|
|
586 | if (stack->ssize > 0 && stack->sptr) |
|
|
587 | munmap (stack->sptr, stack->ssize); |
|
|
588 | else |
|
|
589 | #endif |
|
|
590 | Safefree (stack->sptr); |
|
|
591 | |
580 | |
592 | Safefree (stack); |
581 | return rss; |
593 | } |
|
|
594 | else if (ctx->gencnt == stack->gencnt) |
|
|
595 | --stack->usecnt; |
|
|
596 | } |
|
|
597 | } |
582 | } |
598 | |
583 | |
|
|
584 | /** coroutine stack handling ************************************************/ |
|
|
585 | |
599 | static void |
586 | static void |
600 | setup_coro (void *arg) |
587 | coro_setup (pTHX_ struct coro *coro) |
601 | { |
588 | { |
602 | /* |
589 | /* |
603 | * emulate part of the perl startup here. |
590 | * emulate part of the perl startup here. |
604 | */ |
591 | */ |
|
|
592 | coro_init_stacks (aTHX); |
|
|
593 | |
|
|
594 | PL_runops = RUNOPS_DEFAULT; |
|
|
595 | PL_curcop = &PL_compiling; |
|
|
596 | PL_in_eval = EVAL_NULL; |
|
|
597 | PL_comppad = 0; |
|
|
598 | PL_curpm = 0; |
|
|
599 | PL_localizing = 0; |
|
|
600 | PL_dirty = 0; |
|
|
601 | PL_restartop = 0; |
|
|
602 | |
|
|
603 | GvSV (PL_defgv) = NEWSV (0, 0); |
|
|
604 | GvAV (PL_defgv) = coro->args; coro->args = 0; |
|
|
605 | GvSV (PL_errgv) = NEWSV (0, 0); |
|
|
606 | GvSV (irsgv) = newSVpvn ("\n", 1); sv_magic (GvSV (irsgv), irsgv, PERL_MAGIC_sv, "/", 1); |
|
|
607 | PL_rs = newSVsv (GvSV (irsgv)); |
|
|
608 | |
|
|
609 | { |
|
|
610 | IO *io = newIO (); |
|
|
611 | GvIOp(PL_defoutgv) = io; |
|
|
612 | IoTYPE (io) = IoTYPE_WRONLY; |
|
|
613 | IoOFP (io) = IoIFP (io) = PerlIO_stdout (); |
|
|
614 | IoFLAGS (io) |= IOf_FLUSH; |
|
|
615 | } |
|
|
616 | |
|
|
617 | { |
|
|
618 | dSP; |
|
|
619 | LOGOP myop; |
|
|
620 | |
|
|
621 | Zero (&myop, 1, LOGOP); |
|
|
622 | myop.op_next = Nullop; |
|
|
623 | myop.op_flags = OPf_WANT_VOID; |
|
|
624 | |
|
|
625 | PUSHMARK (SP); |
|
|
626 | XPUSHs (av_shift (GvAV (PL_defgv))); |
|
|
627 | PUTBACK; |
|
|
628 | PL_op = (OP *)&myop; |
|
|
629 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
630 | SPAGAIN; |
|
|
631 | } |
|
|
632 | |
|
|
633 | ENTER; /* necessary e.g. for dounwind */ |
|
|
634 | } |
|
|
635 | |
|
|
636 | static void |
|
|
637 | coro_destroy (pTHX_ struct coro *coro) |
|
|
638 | { |
|
|
639 | if (!IN_DESTRUCT) |
|
|
640 | { |
|
|
641 | /* restore all saved variables and stuff */ |
|
|
642 | LEAVE_SCOPE (0); |
|
|
643 | assert (PL_tmps_floor == -1); |
|
|
644 | |
|
|
645 | /* free all temporaries */ |
|
|
646 | FREETMPS; |
|
|
647 | assert (PL_tmps_ix == -1); |
|
|
648 | |
|
|
649 | /* unwind all extra stacks */ |
|
|
650 | POPSTACK_TO (PL_mainstack); |
|
|
651 | |
|
|
652 | /* unwind main stack */ |
|
|
653 | dounwind (-1); |
|
|
654 | } |
|
|
655 | |
|
|
656 | SvREFCNT_dec (GvSV (PL_defgv)); |
|
|
657 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
658 | SvREFCNT_dec (GvSV (PL_errgv)); |
|
|
659 | SvREFCNT_dec (GvIOp(PL_defoutgv)); |
|
|
660 | SvREFCNT_dec (PL_rs); |
|
|
661 | SvREFCNT_dec (GvSV (irsgv)); |
|
|
662 | |
|
|
663 | coro_destroy_stacks (aTHX); |
|
|
664 | } |
|
|
665 | |
|
|
666 | static void |
|
|
667 | free_coro_mortal (pTHX) |
|
|
668 | { |
|
|
669 | if (coro_mortal) |
|
|
670 | { |
|
|
671 | SvREFCNT_dec (coro_mortal); |
|
|
672 | coro_mortal = 0; |
|
|
673 | } |
|
|
674 | } |
|
|
675 | |
|
|
676 | static int |
|
|
677 | runops_trace (pTHX) |
|
|
678 | { |
|
|
679 | COP *oldcop = 0; |
|
|
680 | int oldcxix = -2; |
|
|
681 | struct coro *coro = SvSTATE (coro_current); /* trace cctx is tied to specific coro */ |
|
|
682 | coro_cctx *cctx = coro->cctx; |
|
|
683 | |
|
|
684 | while ((PL_op = CALL_FPTR (PL_op->op_ppaddr) (aTHX))) |
|
|
685 | { |
|
|
686 | PERL_ASYNC_CHECK (); |
|
|
687 | |
|
|
688 | if (cctx->flags & CC_TRACE_ALL) |
|
|
689 | { |
|
|
690 | if (PL_op->op_type == OP_LEAVESUB && cctx->flags & CC_TRACE_SUB) |
|
|
691 | { |
|
|
692 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
693 | SV **bot, **top; |
|
|
694 | AV *av = newAV (); /* return values */ |
|
|
695 | SV **cb; |
|
|
696 | dSP; |
|
|
697 | |
|
|
698 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
699 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
700 | if (isGV (gv)) |
|
|
701 | gv_efullname3 (fullname, gv, 0); |
|
|
702 | |
|
|
703 | bot = PL_stack_base + cx->blk_oldsp + 1; |
|
|
704 | top = cx->blk_gimme == G_ARRAY ? SP + 1 |
|
|
705 | : cx->blk_gimme == G_SCALAR ? bot + 1 |
|
|
706 | : bot; |
|
|
707 | |
|
|
708 | while (bot < top) |
|
|
709 | av_push (av, SvREFCNT_inc (*bot++)); |
|
|
710 | |
|
|
711 | PL_runops = RUNOPS_DEFAULT; |
|
|
712 | ENTER; |
|
|
713 | SAVETMPS; |
|
|
714 | EXTEND (SP, 3); |
|
|
715 | PUSHMARK (SP); |
|
|
716 | PUSHs (&PL_sv_no); |
|
|
717 | PUSHs (fullname); |
|
|
718 | PUSHs (sv_2mortal (newRV_noinc ((SV *)av))); |
|
|
719 | PUTBACK; |
|
|
720 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
721 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
722 | SPAGAIN; |
|
|
723 | FREETMPS; |
|
|
724 | LEAVE; |
|
|
725 | PL_runops = runops_trace; |
|
|
726 | } |
|
|
727 | |
|
|
728 | if (oldcop != PL_curcop) |
|
|
729 | { |
|
|
730 | oldcop = PL_curcop; |
|
|
731 | |
|
|
732 | if (PL_curcop != &PL_compiling) |
|
|
733 | { |
|
|
734 | SV **cb; |
|
|
735 | |
|
|
736 | if (oldcxix != cxstack_ix && cctx->flags & CC_TRACE_SUB) |
|
|
737 | { |
|
|
738 | PERL_CONTEXT *cx = &cxstack[cxstack_ix]; |
|
|
739 | |
|
|
740 | if (CxTYPE (cx) == CXt_SUB && oldcxix < cxstack_ix) |
|
|
741 | { |
|
|
742 | runops_proc_t old_runops = PL_runops; |
|
|
743 | dSP; |
|
|
744 | GV *gv = CvGV (cx->blk_sub.cv); |
|
|
745 | SV *fullname = sv_2mortal (newSV (0)); |
|
|
746 | |
|
|
747 | if (isGV (gv)) |
|
|
748 | gv_efullname3 (fullname, gv, 0); |
|
|
749 | |
|
|
750 | PL_runops = RUNOPS_DEFAULT; |
|
|
751 | ENTER; |
|
|
752 | SAVETMPS; |
|
|
753 | EXTEND (SP, 3); |
|
|
754 | PUSHMARK (SP); |
|
|
755 | PUSHs (&PL_sv_yes); |
|
|
756 | PUSHs (fullname); |
|
|
757 | PUSHs (cx->blk_sub.hasargs ? sv_2mortal (newRV_inc ((SV *)cx->blk_sub.argarray)) : &PL_sv_undef); |
|
|
758 | PUTBACK; |
|
|
759 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_sub_cb", sizeof ("_trace_sub_cb") - 1, 0); |
|
|
760 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
761 | SPAGAIN; |
|
|
762 | FREETMPS; |
|
|
763 | LEAVE; |
|
|
764 | PL_runops = runops_trace; |
|
|
765 | } |
|
|
766 | |
|
|
767 | oldcxix = cxstack_ix; |
|
|
768 | } |
|
|
769 | |
|
|
770 | if (cctx->flags & CC_TRACE_LINE) |
|
|
771 | { |
|
|
772 | dSP; |
|
|
773 | |
|
|
774 | PL_runops = RUNOPS_DEFAULT; |
|
|
775 | ENTER; |
|
|
776 | SAVETMPS; |
|
|
777 | EXTEND (SP, 3); |
|
|
778 | PL_runops = RUNOPS_DEFAULT; |
|
|
779 | PUSHMARK (SP); |
|
|
780 | PUSHs (sv_2mortal (newSVpv (OutCopFILE (oldcop), 0))); |
|
|
781 | PUSHs (sv_2mortal (newSViv (CopLINE (oldcop)))); |
|
|
782 | PUTBACK; |
|
|
783 | cb = hv_fetch ((HV *)SvRV (coro_current), "_trace_line_cb", sizeof ("_trace_line_cb") - 1, 0); |
|
|
784 | if (cb) call_sv (*cb, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
785 | SPAGAIN; |
|
|
786 | FREETMPS; |
|
|
787 | LEAVE; |
|
|
788 | PL_runops = runops_trace; |
|
|
789 | } |
|
|
790 | } |
|
|
791 | } |
|
|
792 | } |
|
|
793 | } |
|
|
794 | |
|
|
795 | TAINT_NOT; |
|
|
796 | return 0; |
|
|
797 | } |
|
|
798 | |
|
|
799 | /* inject a fake call to Coro::State::_cctx_init into the execution */ |
|
|
800 | /* _cctx_init should be careful, as it could be called at almost any time */ |
|
|
801 | /* during execution of a perl program */ |
|
|
802 | static void NOINLINE |
|
|
803 | prepare_cctx (pTHX_ coro_cctx *cctx) |
|
|
804 | { |
|
|
805 | dSP; |
|
|
806 | LOGOP myop; |
|
|
807 | |
|
|
808 | PL_top_env = &PL_start_env; |
|
|
809 | |
|
|
810 | if (cctx->flags & CC_TRACE) |
|
|
811 | PL_runops = runops_trace; |
|
|
812 | |
|
|
813 | Zero (&myop, 1, LOGOP); |
|
|
814 | myop.op_next = PL_op; |
|
|
815 | myop.op_flags = OPf_WANT_VOID | OPf_STACKED; |
|
|
816 | |
|
|
817 | PUSHMARK (SP); |
|
|
818 | EXTEND (SP, 2); |
|
|
819 | PUSHs (sv_2mortal (newSViv (PTR2IV (cctx)))); |
|
|
820 | PUSHs ((SV *)get_cv ("Coro::State::_cctx_init", FALSE)); |
|
|
821 | PUTBACK; |
|
|
822 | PL_op = (OP *)&myop; |
|
|
823 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
824 | SPAGAIN; |
|
|
825 | } |
|
|
826 | |
|
|
827 | /* |
|
|
828 | * this is a _very_ stripped down perl interpreter ;) |
|
|
829 | */ |
|
|
830 | static void |
|
|
831 | coro_run (void *arg) |
|
|
832 | { |
605 | dTHX; |
833 | dTHX; |
606 | dSP; |
|
|
607 | Coro__State ctx = (Coro__State)arg; |
|
|
608 | SV *sub_init = (SV *)get_cv (SUB_INIT, FALSE); |
|
|
609 | |
834 | |
610 | coro_init_stacks (aTHX); |
835 | /* coro_run is the alternative tail of transfer(), so unlock here. */ |
611 | /*PL_curcop = 0;*/ |
836 | UNLOCK; |
612 | /*PL_in_eval = PL_in_eval;*/ /* inherit */ |
|
|
613 | SvREFCNT_dec (GvAV (PL_defgv)); |
|
|
614 | GvAV (PL_defgv) = ctx->args; ctx->args = 0; |
|
|
615 | |
837 | |
616 | SPAGAIN; |
838 | /* we now skip the entersub that lead to transfer() */ |
|
|
839 | PL_op = PL_op->op_next; |
617 | |
840 | |
618 | if (ctx->stack) |
841 | /* inject a fake subroutine call to cctx_init */ |
619 | { |
842 | prepare_cctx (aTHX_ (coro_cctx *)arg); |
620 | ctx->cursp = 0; |
|
|
621 | |
843 | |
622 | PUSHMARK(SP); |
844 | /* somebody or something will hit me for both perl_run and PL_restartop */ |
623 | PUTBACK; |
845 | PL_restartop = PL_op; |
624 | (void) call_sv (sub_init, G_VOID|G_NOARGS|G_EVAL); |
846 | perl_run (PL_curinterp); |
625 | |
847 | |
626 | if (SvTRUE (ERRSV)) |
848 | /* |
627 | croak (NULL); |
849 | * If perl-run returns we assume exit() was being called or the coro |
628 | else |
850 | * fell off the end, which seems to be the only valid (non-bug) |
629 | croak ("FATAL: CCTXT coroutine returned!"); |
851 | * reason for perl_run to return. We try to exit by jumping to the |
|
|
852 | * bootstrap-time "top" top_env, as we cannot restore the "main" |
|
|
853 | * coroutine as Coro has no such concept |
|
|
854 | */ |
|
|
855 | PL_top_env = main_top_env; |
|
|
856 | JMPENV_JUMP (2); /* I do not feel well about the hardcoded 2 at all */ |
|
|
857 | } |
|
|
858 | |
|
|
859 | static coro_cctx * |
|
|
860 | cctx_new () |
|
|
861 | { |
|
|
862 | coro_cctx *cctx; |
|
|
863 | void *stack_start; |
|
|
864 | size_t stack_size; |
|
|
865 | |
|
|
866 | ++cctx_count; |
|
|
867 | |
|
|
868 | Newz (0, cctx, 1, coro_cctx); |
|
|
869 | |
|
|
870 | #if HAVE_MMAP |
|
|
871 | |
|
|
872 | cctx->ssize = ((coro_stacksize * sizeof (long) + PAGESIZE - 1) / PAGESIZE + CORO_STACKGUARD) * PAGESIZE; |
|
|
873 | /* mmap supposedly does allocate-on-write for us */ |
|
|
874 | cctx->sptr = mmap (0, cctx->ssize, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANONYMOUS, 0, 0); |
|
|
875 | |
|
|
876 | if (cctx->sptr != (void *)-1) |
|
|
877 | { |
|
|
878 | # if CORO_STACKGUARD |
|
|
879 | mprotect (cctx->sptr, CORO_STACKGUARD * PAGESIZE, PROT_NONE); |
|
|
880 | # endif |
|
|
881 | stack_start = CORO_STACKGUARD * PAGESIZE + (char *)cctx->sptr; |
|
|
882 | stack_size = cctx->ssize - CORO_STACKGUARD * PAGESIZE; |
|
|
883 | cctx->flags |= CC_MAPPED; |
630 | } |
884 | } |
631 | else |
885 | else |
632 | { |
886 | #endif |
633 | UNOP myop; |
|
|
634 | |
|
|
635 | Zero(&myop, 1, UNOP); |
|
|
636 | myop.op_next = Nullop; |
|
|
637 | myop.op_flags = OPf_WANT_VOID; |
|
|
638 | |
|
|
639 | PL_op = (OP *)&myop; |
|
|
640 | |
|
|
641 | PUSHMARK(SP); |
|
|
642 | XPUSHs (sub_init); |
|
|
643 | /* |
|
|
644 | * the next line is slightly wrong, as PL_op->op_next |
|
|
645 | * is actually being executed so we skip the first op. |
|
|
646 | * that doesn't matter, though, since it is only |
|
|
647 | * pp_nextstate and we never return... |
|
|
648 | * ah yes, and I don't care anyways ;) |
|
|
649 | */ |
|
|
650 | PUTBACK; |
|
|
651 | PL_op = PL_ppaddr[OP_ENTERSUB](aTHX); |
|
|
652 | SPAGAIN; |
|
|
653 | |
|
|
654 | ENTER; /* necessary e.g. for dounwind */ |
|
|
655 | } |
887 | { |
656 | } |
888 | cctx->ssize = coro_stacksize * (long)sizeof (long); |
|
|
889 | New (0, cctx->sptr, coro_stacksize, long); |
657 | |
890 | |
658 | static void |
891 | if (!cctx->sptr) |
659 | continue_coro (void *arg) |
892 | { |
660 | { |
893 | perror ("FATAL: unable to allocate stack for coroutine"); |
661 | /* |
894 | _exit (EXIT_FAILURE); |
662 | * this is a _very_ stripped down perl interpreter ;) |
895 | } |
663 | */ |
|
|
664 | dTHX; |
|
|
665 | Coro__State ctx = (Coro__State)arg; |
|
|
666 | |
896 | |
667 | PL_top_env = &PL_start_env; |
897 | stack_start = cctx->sptr; |
|
|
898 | stack_size = cctx->ssize; |
|
|
899 | } |
668 | |
900 | |
669 | ctx->cursp = 0; |
901 | REGISTER_STACK (cctx, (char *)stack_start, (char *)stack_start + stack_size); |
670 | PL_op = PL_op->op_next; |
902 | coro_create (&cctx->cctx, coro_run, (void *)cctx, stack_start, stack_size); |
671 | CALLRUNOPS(aTHX); |
|
|
672 | |
903 | |
673 | abort (); |
904 | return cctx; |
674 | } |
905 | } |
675 | |
906 | |
676 | /* never call directly, always through the coro_state_transfer global variable */ |
|
|
677 | static void |
907 | static void |
|
|
908 | cctx_destroy (coro_cctx *cctx) |
|
|
909 | { |
|
|
910 | if (!cctx) |
|
|
911 | return; |
|
|
912 | |
|
|
913 | --cctx_count; |
|
|
914 | |
|
|
915 | #if CORO_USE_VALGRIND |
|
|
916 | VALGRIND_STACK_DEREGISTER (cctx->valgrind_id); |
|
|
917 | #endif |
|
|
918 | |
|
|
919 | #if HAVE_MMAP |
|
|
920 | if (cctx->flags & CC_MAPPED) |
|
|
921 | munmap (cctx->sptr, cctx->ssize); |
|
|
922 | else |
|
|
923 | #endif |
|
|
924 | Safefree (cctx->sptr); |
|
|
925 | |
|
|
926 | Safefree (cctx); |
|
|
927 | } |
|
|
928 | |
|
|
929 | static coro_cctx * |
|
|
930 | cctx_get (pTHX) |
|
|
931 | { |
|
|
932 | while (cctx_first) |
|
|
933 | { |
|
|
934 | coro_cctx *cctx = cctx_first; |
|
|
935 | cctx_first = cctx->next; |
|
|
936 | --cctx_idle; |
|
|
937 | |
|
|
938 | if (cctx->ssize >= coro_stacksize && !(cctx->flags & CC_NOREUSE)) |
|
|
939 | return cctx; |
|
|
940 | |
|
|
941 | cctx_destroy (cctx); |
|
|
942 | } |
|
|
943 | |
|
|
944 | return cctx_new (); |
|
|
945 | } |
|
|
946 | |
|
|
947 | static void |
|
|
948 | cctx_put (coro_cctx *cctx) |
|
|
949 | { |
|
|
950 | /* free another cctx if overlimit */ |
|
|
951 | if (cctx_idle >= MAX_IDLE_CCTX) |
|
|
952 | { |
|
|
953 | coro_cctx *first = cctx_first; |
|
|
954 | cctx_first = first->next; |
|
|
955 | --cctx_idle; |
|
|
956 | |
|
|
957 | cctx_destroy (first); |
|
|
958 | } |
|
|
959 | |
|
|
960 | ++cctx_idle; |
|
|
961 | cctx->next = cctx_first; |
|
|
962 | cctx_first = cctx; |
|
|
963 | } |
|
|
964 | |
|
|
965 | /** coroutine switching *****************************************************/ |
|
|
966 | |
|
|
967 | static void NOINLINE |
|
|
968 | transfer_check (pTHX_ struct coro *prev, struct coro *next) |
|
|
969 | { |
|
|
970 | if (prev != next) |
|
|
971 | { |
|
|
972 | if (!(prev->flags & (CF_RUNNING | CF_NEW))) |
|
|
973 | croak ("Coro::State::transfer called with non-running/new prev Coro::State, but can only transfer from running or new states"); |
|
|
974 | |
|
|
975 | if (next->flags & CF_RUNNING) |
|
|
976 | croak ("Coro::State::transfer called with running next Coro::State, but can only transfer to inactive states"); |
|
|
977 | |
|
|
978 | if (next->flags & CF_DESTROYED) |
|
|
979 | croak ("Coro::State::transfer called with destroyed next Coro::State, but can only transfer to inactive states"); |
|
|
980 | |
|
|
981 | if (PL_lex_state != LEX_NOTPARSING) |
|
|
982 | croak ("Coro::State::transfer called while parsing, but this is not supported"); |
|
|
983 | } |
|
|
984 | } |
|
|
985 | |
|
|
986 | /* always use the TRANSFER macro */ |
|
|
987 | static void NOINLINE |
678 | transfer_impl (pTHX_ struct coro *prev, struct coro *next, int flags) |
988 | transfer (pTHX_ struct coro *prev, struct coro *next) |
679 | { |
989 | { |
680 | dSTACKLEVEL; |
990 | dSTACKLEVEL; |
681 | |
991 | |
|
|
992 | /* sometimes transfer is only called to set idle_sp */ |
|
|
993 | if (!next) |
|
|
994 | { |
|
|
995 | ((coro_cctx *)prev)->idle_sp = STACKLEVEL; |
|
|
996 | assert (((coro_cctx *)prev)->idle_te = PL_top_env); /* just for the side-effect when asserts are enabled */ |
|
|
997 | } |
682 | if (prev != next) |
998 | else if (prev != next) |
683 | { |
999 | { |
684 | /* has this coro been created yet? */ |
1000 | coro_cctx *prev__cctx; |
685 | if (next->mainstack) |
1001 | |
|
|
1002 | if (prev->flags & CF_NEW) |
686 | { |
1003 | { |
687 | LOCK; |
1004 | /* create a new empty context */ |
688 | SAVE (prev, flags); |
1005 | Newz (0, prev->cctx, 1, coro_cctx); |
689 | LOAD (next); |
1006 | prev->flags &= ~CF_NEW; |
690 | UNLOCK; |
1007 | prev->flags |= CF_RUNNING; |
691 | |
|
|
692 | /* mark this state as in-use */ |
|
|
693 | next->mainstack = 0; |
|
|
694 | next->tmps_ix = -2; |
|
|
695 | |
|
|
696 | /* stacklevel changed? if yes, grab the stack for us! */ |
|
|
697 | if (flags & TRANSFER_SAVE_CCTXT) |
|
|
698 | { |
|
|
699 | if (!prev->stack) |
|
|
700 | allocate_stack (prev, 0); |
|
|
701 | else if (prev->cursp != stacklevel |
|
|
702 | && prev->stack->usecnt > 1) |
|
|
703 | { |
|
|
704 | prev->gencnt = ++prev->stack->gencnt; |
|
|
705 | prev->stack->usecnt = 1; |
|
|
706 | } |
|
|
707 | |
|
|
708 | /* has our stack been invalidated? */ |
|
|
709 | if (next->stack && next->stack->gencnt != next->gencnt) |
|
|
710 | { |
|
|
711 | deallocate_stack (next); |
|
|
712 | allocate_stack (next, 1); |
|
|
713 | coro_create (&(next->stack->cctx), |
|
|
714 | continue_coro, (void *)next, |
|
|
715 | next->stack->sptr, labs (next->stack->ssize)); |
|
|
716 | } |
|
|
717 | |
|
|
718 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
719 | prev->cursp = stacklevel; |
|
|
720 | /* don't add any code here */ |
|
|
721 | } |
|
|
722 | else |
|
|
723 | next->cursp = stacklevel; |
|
|
724 | } |
1008 | } |
725 | else if (next->tmps_ix == -2) |
1009 | |
726 | croak ("tried to transfer to running coroutine"); |
1010 | prev->flags &= ~CF_RUNNING; |
|
|
1011 | next->flags |= CF_RUNNING; |
|
|
1012 | |
|
|
1013 | LOCK; |
|
|
1014 | |
|
|
1015 | if (next->flags & CF_NEW) |
|
|
1016 | { |
|
|
1017 | /* need to start coroutine */ |
|
|
1018 | next->flags &= ~CF_NEW; |
|
|
1019 | /* first get rid of the old state */ |
|
|
1020 | save_perl (aTHX_ prev); |
|
|
1021 | /* setup coroutine call */ |
|
|
1022 | coro_setup (aTHX_ next); |
|
|
1023 | } |
727 | else |
1024 | else |
728 | { |
1025 | { |
729 | LOCK; |
1026 | /* coroutine already started */ |
730 | SAVE (prev, -1); /* first get rid of the old state */ |
1027 | save_perl (aTHX_ prev); |
731 | UNLOCK; |
1028 | load_perl (aTHX_ next); |
732 | |
|
|
733 | /* create the coroutine for the first time */ |
|
|
734 | if (flags & TRANSFER_SAVE_CCTXT) |
|
|
735 | { |
|
|
736 | if (!prev->stack) |
|
|
737 | allocate_stack (prev, 0); |
|
|
738 | |
|
|
739 | /* the new coroutine starts with start_env again */ |
|
|
740 | PL_top_env = &PL_start_env; |
|
|
741 | |
|
|
742 | if (prev->stack->sptr && flags & TRANSFER_LAZY_STACK) |
|
|
743 | { |
|
|
744 | setup_coro (next); |
|
|
745 | next->cursp = stacklevel; |
|
|
746 | |
|
|
747 | prev->stack->refcnt++; |
|
|
748 | prev->stack->usecnt++; |
|
|
749 | next->stack = prev->stack; |
|
|
750 | next->gencnt = prev->gencnt; |
|
|
751 | } |
|
|
752 | else |
|
|
753 | { |
|
|
754 | assert (!next->stack); |
|
|
755 | allocate_stack (next, 1); |
|
|
756 | coro_create (&(next->stack->cctx), |
|
|
757 | setup_coro, (void *)next, |
|
|
758 | next->stack->sptr, labs (next->stack->ssize)); |
|
|
759 | coro_transfer (&(prev->stack->cctx), &(next->stack->cctx)); |
|
|
760 | prev->cursp = stacklevel; |
|
|
761 | /* don't add any code here */ |
|
|
762 | } |
|
|
763 | } |
|
|
764 | else |
|
|
765 | { |
|
|
766 | setup_coro (next); |
|
|
767 | next->cursp = stacklevel; |
|
|
768 | } |
|
|
769 | } |
1029 | } |
770 | } |
|
|
771 | |
1030 | |
772 | LOCK; |
1031 | prev__cctx = prev->cctx; |
773 | if (coro_mortal) |
1032 | |
774 | { |
1033 | /* possibly "free" the cctx */ |
775 | SvREFCNT_dec (coro_mortal); |
1034 | if (prev__cctx->idle_sp == STACKLEVEL && !(prev__cctx->flags & CC_TRACE)) |
776 | coro_mortal = 0; |
1035 | { |
777 | } |
1036 | /* I assume that STACKLEVEL is a stronger indicator than PL_top_env changes */ |
|
|
1037 | assert (("ERROR: current top_env must equal previous top_env", PL_top_env == prev__cctx->idle_te)); |
|
|
1038 | |
|
|
1039 | prev->cctx = 0; |
|
|
1040 | |
|
|
1041 | cctx_put (prev__cctx); |
|
|
1042 | } |
|
|
1043 | |
|
|
1044 | ++next->usecount; |
|
|
1045 | |
|
|
1046 | if (!next->cctx) |
|
|
1047 | next->cctx = cctx_get (aTHX); |
|
|
1048 | |
|
|
1049 | if (prev__cctx != next->cctx) |
|
|
1050 | { |
|
|
1051 | prev__cctx->top_env = PL_top_env; |
|
|
1052 | PL_top_env = next->cctx->top_env; |
|
|
1053 | coro_transfer (&prev__cctx->cctx, &next->cctx->cctx); |
|
|
1054 | } |
|
|
1055 | |
|
|
1056 | free_coro_mortal (aTHX); |
778 | UNLOCK; |
1057 | UNLOCK; |
|
|
1058 | } |
779 | } |
1059 | } |
780 | |
1060 | |
781 | /* use this function pointer to call the above function */ |
1061 | struct transfer_args |
782 | /* this is done to increase chances of the compiler not inlining the call */ |
1062 | { |
783 | void (*coro_state_transfer)(pTHX_ struct coro *prev, struct coro *next, int flags) = transfer_impl; |
1063 | struct coro *prev, *next; |
|
|
1064 | }; |
784 | |
1065 | |
785 | #define SV_CORO(sv,func) \ |
1066 | #define TRANSFER(ta) transfer (aTHX_ (ta).prev, (ta).next) |
786 | do { \ |
1067 | #define TRANSFER_CHECK(ta) transfer_check (aTHX_ (ta).prev, (ta).next) |
787 | if (SvROK (sv)) \ |
|
|
788 | sv = SvRV (sv); \ |
|
|
789 | \ |
|
|
790 | if (SvTYPE (sv) == SVt_PVHV && SvSTASH (sv) != coro_state_stash) \ |
|
|
791 | { \ |
|
|
792 | HE *he = hv_fetch_ent ((HV *)sv, ucoro_state_sv, 0, ucoro_state_hash); \ |
|
|
793 | \ |
|
|
794 | if (!he) \ |
|
|
795 | croak ("%s() -- %s is a hashref but lacks the " UCORO_STATE " key", func, # sv); \ |
|
|
796 | \ |
|
|
797 | (sv) = SvRV (HeVAL(he)); \ |
|
|
798 | } \ |
|
|
799 | \ |
|
|
800 | /* must also be changed inside Coro::Cont::yield */ \ |
|
|
801 | if (!SvOBJECT (sv) || SvSTASH (sv) != coro_state_stash) \ |
|
|
802 | croak ("%s() -- %s is not (and contains not) a Coro::State object", func, # sv); \ |
|
|
803 | \ |
|
|
804 | } while(0) |
|
|
805 | |
1068 | |
|
|
1069 | /** high level stuff ********************************************************/ |
|
|
1070 | |
806 | static void |
1071 | static int |
807 | coro_state_destroy (struct coro *coro) |
1072 | coro_state_destroy (pTHX_ struct coro *coro) |
808 | { |
1073 | { |
809 | if (coro->refcnt--) |
1074 | if (coro->flags & CF_DESTROYED) |
810 | return; |
1075 | return 0; |
|
|
1076 | |
|
|
1077 | coro->flags |= CF_DESTROYED; |
|
|
1078 | |
|
|
1079 | if (coro->flags & CF_READY) |
|
|
1080 | { |
|
|
1081 | /* reduce nready, as destroying a ready coro effectively unreadies it */ |
|
|
1082 | /* alternative: look through all ready queues and remove the coro */ |
|
|
1083 | LOCK; |
|
|
1084 | --coro_nready; |
|
|
1085 | UNLOCK; |
|
|
1086 | } |
|
|
1087 | else |
|
|
1088 | coro->flags |= CF_READY; /* make sure it is NOT put into the readyqueue */ |
811 | |
1089 | |
812 | if (coro->mainstack && coro->mainstack != main_mainstack) |
1090 | if (coro->mainstack && coro->mainstack != main_mainstack) |
813 | { |
1091 | { |
814 | struct coro temp; |
1092 | struct coro temp; |
815 | |
1093 | |
816 | SAVE (aTHX_ (&temp), TRANSFER_SAVE_ALL); |
1094 | if (coro->flags & CF_RUNNING) |
|
|
1095 | croak ("FATAL: tried to destroy currently running coroutine"); |
|
|
1096 | |
|
|
1097 | save_perl (aTHX_ &temp); |
817 | LOAD (aTHX_ coro); |
1098 | load_perl (aTHX_ coro); |
818 | |
1099 | |
819 | destroy_stacks (aTHX); |
1100 | coro_destroy (aTHX_ coro); |
820 | |
1101 | |
821 | LOAD ((&temp)); /* this will get rid of defsv etc.. */ |
1102 | load_perl (aTHX_ &temp); /* this will get rid of defsv etc.. */ |
822 | |
1103 | |
823 | coro->mainstack = 0; |
1104 | coro->mainstack = 0; |
824 | } |
1105 | } |
825 | |
1106 | |
826 | deallocate_stack (coro); |
1107 | cctx_destroy (coro->cctx); |
827 | SvREFCNT_dec (coro->args); |
1108 | SvREFCNT_dec (coro->args); |
828 | Safefree (coro); |
1109 | |
|
|
1110 | if (coro->next) coro->next->prev = coro->prev; |
|
|
1111 | if (coro->prev) coro->prev->next = coro->next; |
|
|
1112 | if (coro == coro_first) coro_first = coro->next; |
|
|
1113 | |
|
|
1114 | return 1; |
829 | } |
1115 | } |
830 | |
1116 | |
831 | static int |
1117 | static int |
832 | coro_state_clear (SV *sv, MAGIC *mg) |
1118 | coro_state_free (pTHX_ SV *sv, MAGIC *mg) |
833 | { |
1119 | { |
834 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1120 | struct coro *coro = (struct coro *)mg->mg_ptr; |
835 | mg->mg_ptr = 0; |
1121 | mg->mg_ptr = 0; |
836 | |
1122 | |
|
|
1123 | coro->hv = 0; |
|
|
1124 | |
|
|
1125 | if (--coro->refcnt < 0) |
|
|
1126 | { |
837 | coro_state_destroy (coro); |
1127 | coro_state_destroy (aTHX_ coro); |
|
|
1128 | Safefree (coro); |
|
|
1129 | } |
838 | |
1130 | |
839 | return 0; |
1131 | return 0; |
840 | } |
1132 | } |
841 | |
1133 | |
842 | static int |
1134 | static int |
843 | coro_state_dup (MAGIC *mg, CLONE_PARAMS *params) |
1135 | coro_state_dup (pTHX_ MAGIC *mg, CLONE_PARAMS *params) |
844 | { |
1136 | { |
845 | struct coro *coro = (struct coro *)mg->mg_ptr; |
1137 | struct coro *coro = (struct coro *)mg->mg_ptr; |
846 | |
1138 | |
847 | ++coro->refcnt; |
1139 | ++coro->refcnt; |
848 | |
1140 | |
849 | return 0; |
1141 | return 0; |
850 | } |
1142 | } |
851 | |
1143 | |
852 | static MGVTBL coro_state_vtbl = { 0, 0, 0, 0, coro_state_clear, 0, coro_state_dup, 0 }; |
1144 | static MGVTBL coro_state_vtbl = { |
|
|
1145 | 0, 0, 0, 0, |
|
|
1146 | coro_state_free, |
|
|
1147 | 0, |
|
|
1148 | #ifdef MGf_DUP |
|
|
1149 | coro_state_dup, |
|
|
1150 | #else |
|
|
1151 | # define MGf_DUP 0 |
|
|
1152 | #endif |
|
|
1153 | }; |
853 | |
1154 | |
854 | static struct coro * |
|
|
855 | SvSTATE (SV *coro) |
|
|
856 | { |
|
|
857 | MAGIC *mg = SvMAGIC (SvROK (coro) ? SvRV (coro) : coro); |
|
|
858 | assert (mg->mg_type == PERL_MAGIC_ext); |
|
|
859 | return (struct coro *)mg->mg_ptr; |
|
|
860 | } |
|
|
861 | |
|
|
862 | static void |
1155 | static void |
|
|
1156 | prepare_transfer (pTHX_ struct transfer_args *ta, SV *prev_sv, SV *next_sv) |
|
|
1157 | { |
|
|
1158 | ta->prev = SvSTATE (prev_sv); |
|
|
1159 | ta->next = SvSTATE (next_sv); |
|
|
1160 | TRANSFER_CHECK (*ta); |
|
|
1161 | } |
|
|
1162 | |
|
|
1163 | static void |
863 | api_transfer (pTHX_ SV *prev, SV *next, int flags) |
1164 | api_transfer (SV *prev_sv, SV *next_sv) |
864 | { |
1165 | { |
865 | SV_CORO (prev, "Coro::transfer"); |
1166 | dTHX; |
866 | SV_CORO (next, "Coro::transfer"); |
1167 | struct transfer_args ta; |
867 | |
1168 | |
868 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
1169 | prepare_transfer (aTHX_ &ta, prev_sv, next_sv); |
|
|
1170 | TRANSFER (ta); |
869 | } |
1171 | } |
870 | |
1172 | |
871 | /** Coro ********************************************************************/ |
1173 | /** Coro ********************************************************************/ |
872 | |
1174 | |
873 | #define PRIO_MAX 3 |
|
|
874 | #define PRIO_HIGH 1 |
|
|
875 | #define PRIO_NORMAL 0 |
|
|
876 | #define PRIO_LOW -1 |
|
|
877 | #define PRIO_IDLE -3 |
|
|
878 | #define PRIO_MIN -4 |
|
|
879 | |
|
|
880 | /* for Coro.pm */ |
|
|
881 | static GV *coro_current, *coro_idle; |
|
|
882 | static AV *coro_ready [PRIO_MAX-PRIO_MIN+1]; |
|
|
883 | static int coro_nready; |
|
|
884 | |
|
|
885 | static void |
1175 | static void |
886 | coro_enq (pTHX_ SV *sv) |
1176 | coro_enq (pTHX_ SV *coro_sv) |
887 | { |
1177 | { |
888 | int prio; |
|
|
889 | |
|
|
890 | if (SvTYPE (sv) != SVt_PVHV) |
|
|
891 | croak ("Coro::ready tried to enqueue something that is not a coroutine"); |
|
|
892 | |
|
|
893 | { |
|
|
894 | SV *coro = sv; |
|
|
895 | SV_CORO (coro, "omg"); |
|
|
896 | prio = SvSTATE (coro)->prio; |
|
|
897 | } |
|
|
898 | |
|
|
899 | av_push (coro_ready [prio - PRIO_MIN], sv); |
1178 | av_push (coro_ready [SvSTATE (coro_sv)->prio - PRIO_MIN], coro_sv); |
900 | coro_nready++; |
|
|
901 | } |
1179 | } |
902 | |
1180 | |
903 | static SV * |
1181 | static SV * |
904 | coro_deq (pTHX_ int min_prio) |
1182 | coro_deq (pTHX_ int min_prio) |
905 | { |
1183 | { |
… | |
… | |
909 | if (min_prio < 0) |
1187 | if (min_prio < 0) |
910 | min_prio = 0; |
1188 | min_prio = 0; |
911 | |
1189 | |
912 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
1190 | for (prio = PRIO_MAX - PRIO_MIN + 1; --prio >= min_prio; ) |
913 | if (AvFILLp (coro_ready [prio]) >= 0) |
1191 | if (AvFILLp (coro_ready [prio]) >= 0) |
914 | { |
|
|
915 | coro_nready--; |
|
|
916 | return av_shift (coro_ready [prio]); |
1192 | return av_shift (coro_ready [prio]); |
917 | } |
|
|
918 | |
1193 | |
919 | return 0; |
1194 | return 0; |
920 | } |
1195 | } |
921 | |
1196 | |
922 | static void |
1197 | static int |
923 | api_ready (SV *coro) |
1198 | api_ready (SV *coro_sv) |
924 | { |
1199 | { |
925 | dTHX; |
1200 | dTHX; |
|
|
1201 | struct coro *coro; |
926 | |
1202 | |
927 | if (SvROK (coro)) |
1203 | if (SvROK (coro_sv)) |
928 | coro = SvRV (coro); |
1204 | coro_sv = SvRV (coro_sv); |
|
|
1205 | |
|
|
1206 | coro = SvSTATE (coro_sv); |
|
|
1207 | |
|
|
1208 | if (coro->flags & CF_READY) |
|
|
1209 | return 0; |
|
|
1210 | |
|
|
1211 | coro->flags |= CF_READY; |
929 | |
1212 | |
930 | LOCK; |
1213 | LOCK; |
931 | coro_enq (aTHX_ SvREFCNT_inc (coro)); |
1214 | coro_enq (aTHX_ SvREFCNT_inc (coro_sv)); |
|
|
1215 | ++coro_nready; |
932 | UNLOCK; |
1216 | UNLOCK; |
|
|
1217 | |
|
|
1218 | return 1; |
|
|
1219 | } |
|
|
1220 | |
|
|
1221 | static int |
|
|
1222 | api_is_ready (SV *coro_sv) |
|
|
1223 | { |
|
|
1224 | dTHX; |
|
|
1225 | return !!(SvSTATE (coro_sv)->flags & CF_READY); |
|
|
1226 | } |
|
|
1227 | |
|
|
1228 | static void |
|
|
1229 | prepare_schedule (pTHX_ struct transfer_args *ta) |
|
|
1230 | { |
|
|
1231 | SV *prev_sv, *next_sv; |
|
|
1232 | |
|
|
1233 | for (;;) |
|
|
1234 | { |
|
|
1235 | LOCK; |
|
|
1236 | next_sv = coro_deq (aTHX_ PRIO_MIN); |
|
|
1237 | |
|
|
1238 | /* nothing to schedule: call the idle handler */ |
|
|
1239 | if (!next_sv) |
|
|
1240 | { |
|
|
1241 | dSP; |
|
|
1242 | UNLOCK; |
|
|
1243 | |
|
|
1244 | ENTER; |
|
|
1245 | SAVETMPS; |
|
|
1246 | |
|
|
1247 | PUSHMARK (SP); |
|
|
1248 | PUTBACK; |
|
|
1249 | call_sv (get_sv ("Coro::idle", FALSE), G_DISCARD); |
|
|
1250 | |
|
|
1251 | FREETMPS; |
|
|
1252 | LEAVE; |
|
|
1253 | continue; |
|
|
1254 | } |
|
|
1255 | |
|
|
1256 | ta->next = SvSTATE (next_sv); |
|
|
1257 | |
|
|
1258 | /* cannot transfer to destroyed coros, skip and look for next */ |
|
|
1259 | if (ta->next->flags & CF_DESTROYED) |
|
|
1260 | { |
|
|
1261 | UNLOCK; |
|
|
1262 | SvREFCNT_dec (next_sv); |
|
|
1263 | /* coro_nready is already taken care of by destroy */ |
|
|
1264 | continue; |
|
|
1265 | } |
|
|
1266 | |
|
|
1267 | --coro_nready; |
|
|
1268 | UNLOCK; |
|
|
1269 | break; |
|
|
1270 | } |
|
|
1271 | |
|
|
1272 | /* free this only after the transfer */ |
|
|
1273 | prev_sv = SvRV (coro_current); |
|
|
1274 | ta->prev = SvSTATE (prev_sv); |
|
|
1275 | TRANSFER_CHECK (*ta); |
|
|
1276 | assert (ta->next->flags & CF_READY); |
|
|
1277 | ta->next->flags &= ~CF_READY; |
|
|
1278 | SvRV_set (coro_current, next_sv); |
|
|
1279 | |
|
|
1280 | LOCK; |
|
|
1281 | free_coro_mortal (aTHX); |
|
|
1282 | coro_mortal = prev_sv; |
|
|
1283 | UNLOCK; |
|
|
1284 | } |
|
|
1285 | |
|
|
1286 | static void |
|
|
1287 | prepare_cede (pTHX_ struct transfer_args *ta) |
|
|
1288 | { |
|
|
1289 | api_ready (coro_current); |
|
|
1290 | prepare_schedule (aTHX_ ta); |
|
|
1291 | } |
|
|
1292 | |
|
|
1293 | static int |
|
|
1294 | prepare_cede_notself (pTHX_ struct transfer_args *ta) |
|
|
1295 | { |
|
|
1296 | if (coro_nready) |
|
|
1297 | { |
|
|
1298 | SV *prev = SvRV (coro_current); |
|
|
1299 | prepare_schedule (aTHX_ ta); |
|
|
1300 | api_ready (prev); |
|
|
1301 | return 1; |
|
|
1302 | } |
|
|
1303 | else |
|
|
1304 | return 0; |
933 | } |
1305 | } |
934 | |
1306 | |
935 | static void |
1307 | static void |
936 | api_schedule (void) |
1308 | api_schedule (void) |
937 | { |
1309 | { |
938 | dTHX; |
1310 | dTHX; |
|
|
1311 | struct transfer_args ta; |
939 | |
1312 | |
940 | SV *prev, *next; |
1313 | prepare_schedule (aTHX_ &ta); |
941 | |
1314 | TRANSFER (ta); |
942 | LOCK; |
|
|
943 | |
|
|
944 | prev = SvRV (GvSV (coro_current)); |
|
|
945 | next = coro_deq (aTHX_ PRIO_MIN); |
|
|
946 | |
|
|
947 | if (!next) |
|
|
948 | next = SvREFCNT_inc (SvRV (GvSV (coro_idle))); |
|
|
949 | |
|
|
950 | /* free this only after the transfer */ |
|
|
951 | coro_mortal = prev; |
|
|
952 | SV_CORO (prev, "Coro::schedule"); |
|
|
953 | |
|
|
954 | SvRV (GvSV (coro_current)) = next; |
|
|
955 | |
|
|
956 | SV_CORO (next, "Coro::schedule"); |
|
|
957 | |
|
|
958 | UNLOCK; |
|
|
959 | |
|
|
960 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), |
|
|
961 | TRANSFER_SAVE_ALL | TRANSFER_LAZY_STACK); |
|
|
962 | } |
1315 | } |
963 | |
1316 | |
964 | static void |
1317 | static int |
965 | api_cede (void) |
1318 | api_cede (void) |
966 | { |
1319 | { |
967 | dTHX; |
1320 | dTHX; |
|
|
1321 | struct transfer_args ta; |
968 | |
1322 | |
969 | LOCK; |
1323 | prepare_cede (aTHX_ &ta); |
970 | coro_enq (aTHX_ SvREFCNT_inc (SvRV (GvSV (coro_current)))); |
|
|
971 | UNLOCK; |
|
|
972 | |
1324 | |
973 | api_schedule (); |
1325 | if (ta.prev != ta.next) |
|
|
1326 | { |
|
|
1327 | TRANSFER (ta); |
|
|
1328 | return 1; |
|
|
1329 | } |
|
|
1330 | else |
|
|
1331 | return 0; |
974 | } |
1332 | } |
975 | |
1333 | |
|
|
1334 | static int |
|
|
1335 | api_cede_notself (void) |
|
|
1336 | { |
|
|
1337 | dTHX; |
|
|
1338 | struct transfer_args ta; |
|
|
1339 | |
|
|
1340 | if (prepare_cede_notself (aTHX_ &ta)) |
|
|
1341 | { |
|
|
1342 | TRANSFER (ta); |
|
|
1343 | return 1; |
|
|
1344 | } |
|
|
1345 | else |
|
|
1346 | return 0; |
|
|
1347 | } |
|
|
1348 | |
|
|
1349 | static void |
|
|
1350 | api_trace (SV *coro_sv, int flags) |
|
|
1351 | { |
|
|
1352 | dTHX; |
|
|
1353 | struct coro *coro = SvSTATE (coro_sv); |
|
|
1354 | |
|
|
1355 | if (flags & CC_TRACE) |
|
|
1356 | { |
|
|
1357 | if (!coro->cctx) |
|
|
1358 | coro->cctx = cctx_new (); |
|
|
1359 | else if (!(coro->cctx->flags & CC_TRACE)) |
|
|
1360 | croak ("cannot enable tracing on coroutine with custom stack"); |
|
|
1361 | |
|
|
1362 | coro->cctx->flags |= CC_NOREUSE | (flags & (CC_TRACE | CC_TRACE_ALL)); |
|
|
1363 | } |
|
|
1364 | else if (coro->cctx && coro->cctx->flags & CC_TRACE) |
|
|
1365 | { |
|
|
1366 | coro->cctx->flags &= ~(CC_TRACE | CC_TRACE_ALL); |
|
|
1367 | |
|
|
1368 | if (coro->flags & CF_RUNNING) |
|
|
1369 | PL_runops = RUNOPS_DEFAULT; |
|
|
1370 | else |
|
|
1371 | coro->runops = RUNOPS_DEFAULT; |
|
|
1372 | } |
|
|
1373 | } |
|
|
1374 | |
976 | MODULE = Coro::State PACKAGE = Coro::State |
1375 | MODULE = Coro::State PACKAGE = Coro::State PREFIX = api_ |
977 | |
1376 | |
978 | PROTOTYPES: DISABLE |
1377 | PROTOTYPES: DISABLE |
979 | |
1378 | |
980 | BOOT: |
1379 | BOOT: |
981 | { /* {} necessary for stoopid perl-5.6.x */ |
1380 | { |
982 | #ifdef USE_ITHREADS |
1381 | #ifdef USE_ITHREADS |
983 | MUTEX_INIT (&coro_mutex); |
1382 | MUTEX_INIT (&coro_mutex); |
984 | #endif |
1383 | #endif |
985 | BOOT_PAGESIZE; |
1384 | BOOT_PAGESIZE; |
986 | |
1385 | |
987 | ucoro_state_sv = newSVpv (UCORO_STATE, sizeof(UCORO_STATE) - 1); |
1386 | irsgv = gv_fetchpv ("/", 1, SVt_PV); |
988 | PERL_HASH(ucoro_state_hash, UCORO_STATE, sizeof(UCORO_STATE) - 1); |
1387 | |
989 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
1388 | coro_state_stash = gv_stashpv ("Coro::State", TRUE); |
990 | |
1389 | |
991 | newCONSTSUB (coro_state_stash, "SAVE_DEFAV", newSViv (TRANSFER_SAVE_DEFAV)); |
1390 | newCONSTSUB (coro_state_stash, "CC_TRACE" , newSViv (CC_TRACE)); |
992 | newCONSTSUB (coro_state_stash, "SAVE_DEFSV", newSViv (TRANSFER_SAVE_DEFSV)); |
1391 | newCONSTSUB (coro_state_stash, "CC_TRACE_SUB" , newSViv (CC_TRACE_SUB)); |
993 | newCONSTSUB (coro_state_stash, "SAVE_ERRSV", newSViv (TRANSFER_SAVE_ERRSV)); |
1392 | newCONSTSUB (coro_state_stash, "CC_TRACE_LINE", newSViv (CC_TRACE_LINE)); |
994 | newCONSTSUB (coro_state_stash, "SAVE_CCTXT", newSViv (TRANSFER_SAVE_CCTXT)); |
1393 | newCONSTSUB (coro_state_stash, "CC_TRACE_ALL" , newSViv (CC_TRACE_ALL)); |
995 | |
1394 | |
996 | main_mainstack = PL_mainstack; |
1395 | main_mainstack = PL_mainstack; |
|
|
1396 | main_top_env = PL_top_env; |
|
|
1397 | |
|
|
1398 | while (main_top_env->je_prev) |
|
|
1399 | main_top_env = main_top_env->je_prev; |
997 | |
1400 | |
998 | coroapi.ver = CORO_API_VERSION; |
1401 | coroapi.ver = CORO_API_VERSION; |
999 | coroapi.transfer = api_transfer; |
1402 | coroapi.transfer = api_transfer; |
1000 | |
1403 | |
1001 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
1404 | assert (("PRIO_NORMAL must be 0", !PRIO_NORMAL)); |
… | |
… | |
1008 | struct coro *coro; |
1411 | struct coro *coro; |
1009 | HV *hv; |
1412 | HV *hv; |
1010 | int i; |
1413 | int i; |
1011 | |
1414 | |
1012 | Newz (0, coro, 1, struct coro); |
1415 | Newz (0, coro, 1, struct coro); |
1013 | coro->args = newAV (); |
1416 | coro->args = newAV (); |
|
|
1417 | coro->flags = CF_NEW; |
|
|
1418 | |
|
|
1419 | if (coro_first) coro_first->prev = coro; |
|
|
1420 | coro->next = coro_first; |
|
|
1421 | coro_first = coro; |
|
|
1422 | |
|
|
1423 | coro->hv = hv = newHV (); |
|
|
1424 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
|
|
1425 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
1014 | |
1426 | |
1015 | for (i = 1; i < items; i++) |
1427 | for (i = 1; i < items; i++) |
1016 | av_push (coro->args, newSVsv (ST (i))); |
1428 | av_push (coro->args, newSVsv (ST (i))); |
1017 | |
|
|
1018 | /*coro->mainstack = 0; *//*actual work is done inside transfer */ |
|
|
1019 | /*coro->stack = 0;*/ |
|
|
1020 | |
|
|
1021 | hv = newHV (); |
|
|
1022 | sv_magicext ((SV *)hv, 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro, 0)->mg_flags |= MGf_DUP; |
|
|
1023 | RETVAL = sv_bless (newRV_noinc ((SV *)hv), gv_stashpv (klass, 1)); |
|
|
1024 | } |
1429 | } |
1025 | OUTPUT: |
1430 | OUTPUT: |
1026 | RETVAL |
1431 | RETVAL |
1027 | |
1432 | |
|
|
1433 | # these not obviously related functions are all rolled into the same xs |
|
|
1434 | # function to increase chances that they all will call transfer with the same |
|
|
1435 | # stack offset |
1028 | void |
1436 | void |
1029 | transfer(prev, next, flags) |
1437 | _set_stacklevel (...) |
1030 | SV *prev |
1438 | ALIAS: |
1031 | SV *next |
1439 | Coro::State::transfer = 1 |
1032 | int flags |
1440 | Coro::schedule = 2 |
|
|
1441 | Coro::cede = 3 |
|
|
1442 | Coro::cede_notself = 4 |
1033 | CODE: |
1443 | CODE: |
1034 | PUTBACK; |
|
|
1035 | SV_CORO (next, "Coro::transfer"); |
|
|
1036 | SV_CORO (prev, "Coro::transfer"); |
|
|
1037 | coro_state_transfer (aTHX_ SvSTATE (prev), SvSTATE (next), flags); |
|
|
1038 | SPAGAIN; |
|
|
1039 | |
|
|
1040 | int |
|
|
1041 | prio (Coro::State coro, int newprio = 0) |
|
|
1042 | ALIAS: |
|
|
1043 | nice = 1 |
|
|
1044 | CODE: |
|
|
1045 | { |
1444 | { |
1046 | RETVAL = coro->prio; |
1445 | struct transfer_args ta; |
1047 | |
1446 | |
1048 | if (items > 1) |
1447 | switch (ix) |
1049 | { |
1448 | { |
|
|
1449 | case 0: |
|
|
1450 | ta.prev = (struct coro *)INT2PTR (coro_cctx *, SvIV (ST (0))); |
|
|
1451 | ta.next = 0; |
|
|
1452 | break; |
|
|
1453 | |
|
|
1454 | case 1: |
1050 | if (ix) |
1455 | if (items != 2) |
1051 | newprio += coro->prio; |
1456 | croak ("Coro::State::transfer (prev,next) expects two arguments, not %d", items); |
1052 | |
1457 | |
1053 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
1458 | prepare_transfer (aTHX_ &ta, ST (0), ST (1)); |
1054 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
1459 | break; |
1055 | |
1460 | |
1056 | coro->prio = newprio; |
1461 | case 2: |
|
|
1462 | prepare_schedule (aTHX_ &ta); |
|
|
1463 | break; |
|
|
1464 | |
|
|
1465 | case 3: |
|
|
1466 | prepare_cede (aTHX_ &ta); |
|
|
1467 | break; |
|
|
1468 | |
|
|
1469 | case 4: |
|
|
1470 | if (!prepare_cede_notself (aTHX_ &ta)) |
|
|
1471 | XSRETURN_EMPTY; |
|
|
1472 | |
|
|
1473 | break; |
1057 | } |
1474 | } |
1058 | } |
|
|
1059 | |
1475 | |
1060 | void |
1476 | BARRIER; |
1061 | _clone_state_from (SV *dst, SV *src) |
1477 | TRANSFER (ta); |
|
|
1478 | |
|
|
1479 | if (GIMME_V != G_VOID && ta.next != ta.prev) |
|
|
1480 | XSRETURN_YES; |
|
|
1481 | } |
|
|
1482 | |
|
|
1483 | bool |
|
|
1484 | _destroy (SV *coro_sv) |
1062 | CODE: |
1485 | CODE: |
1063 | { |
1486 | RETVAL = coro_state_destroy (aTHX_ SvSTATE (coro_sv)); |
1064 | struct coro *coro_src = SvSTATE (src); |
1487 | OUTPUT: |
1065 | |
1488 | RETVAL |
1066 | sv_unmagic (SvRV (dst), PERL_MAGIC_ext); |
|
|
1067 | |
|
|
1068 | ++coro_src->refcnt; |
|
|
1069 | sv_magicext (SvRV (dst), 0, PERL_MAGIC_ext, &coro_state_vtbl, (char *)coro_src, 0)->mg_flags |= MGf_DUP; |
|
|
1070 | } |
|
|
1071 | |
1489 | |
1072 | void |
1490 | void |
1073 | _exit (code) |
1491 | _exit (code) |
1074 | int code |
1492 | int code |
1075 | PROTOTYPE: $ |
1493 | PROTOTYPE: $ |
1076 | CODE: |
1494 | CODE: |
1077 | _exit (code); |
1495 | _exit (code); |
1078 | |
1496 | |
1079 | MODULE = Coro::State PACKAGE = Coro::Cont |
1497 | int |
|
|
1498 | cctx_stacksize (int new_stacksize = 0) |
|
|
1499 | CODE: |
|
|
1500 | RETVAL = coro_stacksize; |
|
|
1501 | if (new_stacksize) |
|
|
1502 | coro_stacksize = new_stacksize; |
|
|
1503 | OUTPUT: |
|
|
1504 | RETVAL |
|
|
1505 | |
|
|
1506 | int |
|
|
1507 | cctx_count () |
|
|
1508 | CODE: |
|
|
1509 | RETVAL = cctx_count; |
|
|
1510 | OUTPUT: |
|
|
1511 | RETVAL |
|
|
1512 | |
|
|
1513 | int |
|
|
1514 | cctx_idle () |
|
|
1515 | CODE: |
|
|
1516 | RETVAL = cctx_idle; |
|
|
1517 | OUTPUT: |
|
|
1518 | RETVAL |
1080 | |
1519 | |
1081 | void |
1520 | void |
1082 | yield (...) |
1521 | list () |
1083 | PROTOTYPE: @ |
1522 | PPCODE: |
|
|
1523 | { |
|
|
1524 | struct coro *coro; |
|
|
1525 | for (coro = coro_first; coro; coro = coro->next) |
|
|
1526 | if (coro->hv) |
|
|
1527 | XPUSHs (sv_2mortal (newRV_inc ((SV *)coro->hv))); |
|
|
1528 | } |
|
|
1529 | |
|
|
1530 | void |
|
|
1531 | call (Coro::State coro, SV *coderef) |
|
|
1532 | ALIAS: |
|
|
1533 | eval = 1 |
|
|
1534 | CODE: |
|
|
1535 | { |
|
|
1536 | if (coro->mainstack) |
|
|
1537 | { |
|
|
1538 | struct coro temp; |
|
|
1539 | Zero (&temp, 1, struct coro); |
|
|
1540 | |
|
|
1541 | if (!(coro->flags & CF_RUNNING)) |
|
|
1542 | { |
|
|
1543 | save_perl (aTHX_ &temp); |
|
|
1544 | load_perl (aTHX_ coro); |
|
|
1545 | } |
|
|
1546 | |
|
|
1547 | { |
|
|
1548 | dSP; |
|
|
1549 | ENTER; |
|
|
1550 | SAVETMPS; |
|
|
1551 | PUSHMARK (SP); |
|
|
1552 | PUTBACK; |
|
|
1553 | if (ix) |
|
|
1554 | eval_sv (coderef, 0); |
|
|
1555 | else |
|
|
1556 | call_sv (coderef, G_KEEPERR | G_EVAL | G_VOID | G_DISCARD); |
|
|
1557 | SPAGAIN; |
|
|
1558 | FREETMPS; |
|
|
1559 | LEAVE; |
|
|
1560 | PUTBACK; |
|
|
1561 | } |
|
|
1562 | |
|
|
1563 | if (!(coro->flags & CF_RUNNING)) |
|
|
1564 | { |
|
|
1565 | save_perl (aTHX_ coro); |
|
|
1566 | load_perl (aTHX_ &temp); |
|
|
1567 | } |
|
|
1568 | } |
|
|
1569 | } |
|
|
1570 | |
|
|
1571 | SV * |
|
|
1572 | is_ready (Coro::State coro) |
|
|
1573 | PROTOTYPE: $ |
|
|
1574 | ALIAS: |
|
|
1575 | is_ready = CF_READY |
|
|
1576 | is_running = CF_RUNNING |
|
|
1577 | is_new = CF_NEW |
|
|
1578 | is_destroyed = CF_DESTROYED |
|
|
1579 | CODE: |
|
|
1580 | RETVAL = boolSV (coro->flags & ix); |
|
|
1581 | OUTPUT: |
|
|
1582 | RETVAL |
|
|
1583 | |
|
|
1584 | void |
|
|
1585 | api_trace (SV *coro, int flags = CC_TRACE | CC_TRACE_SUB) |
|
|
1586 | |
|
|
1587 | SV * |
|
|
1588 | has_stack (Coro::State coro) |
|
|
1589 | PROTOTYPE: $ |
|
|
1590 | CODE: |
|
|
1591 | RETVAL = boolSV (!!coro->cctx); |
|
|
1592 | OUTPUT: |
|
|
1593 | RETVAL |
|
|
1594 | |
|
|
1595 | int |
|
|
1596 | is_traced (Coro::State coro) |
|
|
1597 | PROTOTYPE: $ |
|
|
1598 | CODE: |
|
|
1599 | RETVAL = (coro->cctx ? coro->cctx->flags : 0) & CC_TRACE_ALL; |
|
|
1600 | OUTPUT: |
|
|
1601 | RETVAL |
|
|
1602 | |
|
|
1603 | IV |
|
|
1604 | rss (Coro::State coro) |
|
|
1605 | PROTOTYPE: $ |
|
|
1606 | ALIAS: |
|
|
1607 | usecount = 1 |
1084 | CODE: |
1608 | CODE: |
1085 | SV *yieldstack; |
1609 | switch (ix) |
1086 | SV *sv; |
1610 | { |
1087 | AV *defav = GvAV (PL_defgv); |
1611 | case 0: RETVAL = coro_rss (aTHX_ coro); break; |
1088 | struct coro *prev, *next; |
1612 | case 1: RETVAL = coro->usecount; break; |
1089 | |
|
|
1090 | yieldstack = *hv_fetch ( |
|
|
1091 | (HV *)SvRV (GvSV (coro_current)), |
|
|
1092 | "yieldstack", sizeof ("yieldstack") - 1, |
|
|
1093 | 0 |
1613 | } |
1094 | ); |
1614 | OUTPUT: |
|
|
1615 | RETVAL |
1095 | |
1616 | |
1096 | /* set up @_ -- ugly */ |
|
|
1097 | av_clear (defav); |
|
|
1098 | av_fill (defav, items - 1); |
|
|
1099 | while (items--) |
|
|
1100 | av_store (defav, items, SvREFCNT_inc (ST(items))); |
|
|
1101 | |
|
|
1102 | sv = av_pop ((AV *)SvRV (yieldstack)); |
|
|
1103 | prev = SvSTATE ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 0, 0))); |
|
|
1104 | next = SvSTATE ((SV*)SvRV (*av_fetch ((AV *)SvRV (sv), 1, 0))); |
|
|
1105 | SvREFCNT_dec (sv); |
|
|
1106 | |
|
|
1107 | coro_state_transfer (aTHX_ prev, next, 0); |
|
|
1108 | |
1617 | |
1109 | MODULE = Coro::State PACKAGE = Coro |
1618 | MODULE = Coro::State PACKAGE = Coro |
1110 | |
1619 | |
1111 | BOOT: |
1620 | BOOT: |
1112 | { |
1621 | { |
1113 | int i; |
1622 | int i; |
|
|
1623 | |
|
|
1624 | sv_pool_rss = get_sv ("Coro::POOL_RSS" , TRUE); |
|
|
1625 | sv_pool_size = get_sv ("Coro::POOL_SIZE" , TRUE); |
|
|
1626 | av_async_pool = get_av ("Coro::async_pool", TRUE); |
|
|
1627 | |
|
|
1628 | coro_current = get_sv ("Coro::current", FALSE); |
|
|
1629 | SvREADONLY_on (coro_current); |
|
|
1630 | |
1114 | HV *stash = gv_stashpv ("Coro", TRUE); |
1631 | coro_stash = gv_stashpv ("Coro", TRUE); |
1115 | |
1632 | |
1116 | newCONSTSUB (stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1633 | newCONSTSUB (coro_stash, "PRIO_MAX", newSViv (PRIO_MAX)); |
1117 | newCONSTSUB (stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1634 | newCONSTSUB (coro_stash, "PRIO_HIGH", newSViv (PRIO_HIGH)); |
1118 | newCONSTSUB (stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1635 | newCONSTSUB (coro_stash, "PRIO_NORMAL", newSViv (PRIO_NORMAL)); |
1119 | newCONSTSUB (stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1636 | newCONSTSUB (coro_stash, "PRIO_LOW", newSViv (PRIO_LOW)); |
1120 | newCONSTSUB (stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1637 | newCONSTSUB (coro_stash, "PRIO_IDLE", newSViv (PRIO_IDLE)); |
1121 | newCONSTSUB (stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1638 | newCONSTSUB (coro_stash, "PRIO_MIN", newSViv (PRIO_MIN)); |
1122 | |
|
|
1123 | coro_current = gv_fetchpv ("Coro::current", TRUE, SVt_PV); |
|
|
1124 | coro_idle = gv_fetchpv ("Coro::idle" , TRUE, SVt_PV); |
|
|
1125 | |
1639 | |
1126 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1640 | for (i = PRIO_MAX - PRIO_MIN + 1; i--; ) |
1127 | coro_ready[i] = newAV (); |
1641 | coro_ready[i] = newAV (); |
1128 | |
1642 | |
1129 | { |
1643 | { |
1130 | SV *sv = perl_get_sv("Coro::API", 1); |
1644 | SV *sv = perl_get_sv("Coro::API", 1); |
1131 | |
1645 | |
1132 | coroapi.schedule = api_schedule; |
1646 | coroapi.schedule = api_schedule; |
1133 | coroapi.cede = api_cede; |
1647 | coroapi.cede = api_cede; |
|
|
1648 | coroapi.cede_notself = api_cede_notself; |
1134 | coroapi.ready = api_ready; |
1649 | coroapi.ready = api_ready; |
|
|
1650 | coroapi.is_ready = api_is_ready; |
1135 | coroapi.nready = &coro_nready; |
1651 | coroapi.nready = &coro_nready; |
1136 | coroapi.current = coro_current; |
1652 | coroapi.current = coro_current; |
1137 | |
1653 | |
1138 | GCoroAPI = &coroapi; |
1654 | GCoroAPI = &coroapi; |
1139 | sv_setiv (sv, (IV)&coroapi); |
1655 | sv_setiv (sv, (IV)&coroapi); |
1140 | SvREADONLY_on (sv); |
1656 | SvREADONLY_on (sv); |
1141 | } |
1657 | } |
1142 | } |
1658 | } |
1143 | |
1659 | |
1144 | #if !PERL_MICRO |
|
|
1145 | |
|
|
1146 | void |
1660 | void |
1147 | ready (self) |
1661 | _set_current (SV *current) |
1148 | SV * self |
|
|
1149 | PROTOTYPE: $ |
1662 | PROTOTYPE: $ |
1150 | CODE: |
1663 | CODE: |
1151 | api_ready (self); |
1664 | SvREFCNT_dec (SvRV (coro_current)); |
|
|
1665 | SvRV_set (coro_current, SvREFCNT_inc (SvRV (current))); |
1152 | |
1666 | |
1153 | #endif |
1667 | int |
|
|
1668 | prio (Coro::State coro, int newprio = 0) |
|
|
1669 | ALIAS: |
|
|
1670 | nice = 1 |
|
|
1671 | CODE: |
|
|
1672 | { |
|
|
1673 | RETVAL = coro->prio; |
|
|
1674 | |
|
|
1675 | if (items > 1) |
|
|
1676 | { |
|
|
1677 | if (ix) |
|
|
1678 | newprio = coro->prio - newprio; |
|
|
1679 | |
|
|
1680 | if (newprio < PRIO_MIN) newprio = PRIO_MIN; |
|
|
1681 | if (newprio > PRIO_MAX) newprio = PRIO_MAX; |
|
|
1682 | |
|
|
1683 | coro->prio = newprio; |
|
|
1684 | } |
|
|
1685 | } |
|
|
1686 | OUTPUT: |
|
|
1687 | RETVAL |
|
|
1688 | |
|
|
1689 | SV * |
|
|
1690 | ready (SV *self) |
|
|
1691 | PROTOTYPE: $ |
|
|
1692 | CODE: |
|
|
1693 | RETVAL = boolSV (api_ready (self)); |
|
|
1694 | OUTPUT: |
|
|
1695 | RETVAL |
1154 | |
1696 | |
1155 | int |
1697 | int |
1156 | nready (...) |
1698 | nready (...) |
1157 | PROTOTYPE: |
1699 | PROTOTYPE: |
1158 | CODE: |
1700 | CODE: |
1159 | RETVAL = coro_nready; |
1701 | RETVAL = coro_nready; |
1160 | OUTPUT: |
1702 | OUTPUT: |
1161 | RETVAL |
1703 | RETVAL |
1162 | |
1704 | |
|
|
1705 | # for async_pool speedup |
1163 | void |
1706 | void |
1164 | schedule (...) |
1707 | _pool_1 (SV *cb) |
1165 | PROTOTYPE: |
|
|
1166 | CODE: |
1708 | CODE: |
1167 | api_schedule (); |
1709 | { |
|
|
1710 | int i, len; |
|
|
1711 | HV *hv = (HV *)SvRV (coro_current); |
|
|
1712 | AV *defav = GvAV (PL_defgv); |
|
|
1713 | SV *invoke = hv_delete (hv, "_invoke", sizeof ("_invoke") - 1, 0); |
|
|
1714 | AV *invoke_av; |
|
|
1715 | |
|
|
1716 | if (!invoke) |
|
|
1717 | croak ("\3terminate\2\n"); |
|
|
1718 | |
|
|
1719 | hv_store (hv, "desc", sizeof ("desc") - 1, |
|
|
1720 | newSVpvn ("[async_pool]", sizeof ("[async_pool]") - 1), 0); |
|
|
1721 | |
|
|
1722 | invoke_av = (AV *)SvRV (invoke); |
|
|
1723 | len = av_len (invoke_av); |
|
|
1724 | |
|
|
1725 | sv_setsv (cb, AvARRAY (invoke_av)[0]); |
|
|
1726 | |
|
|
1727 | if (len > 0) |
|
|
1728 | { |
|
|
1729 | av_fill (defav, len - 1); |
|
|
1730 | for (i = 0; i < len; ++i) |
|
|
1731 | av_store (defav, i, SvREFCNT_inc (AvARRAY (invoke_av)[i + 1])); |
|
|
1732 | } |
|
|
1733 | |
|
|
1734 | SvREFCNT_dec (invoke); |
|
|
1735 | } |
1168 | |
1736 | |
1169 | void |
1737 | void |
1170 | cede (...) |
1738 | _pool_2 (SV *cb) |
1171 | PROTOTYPE: |
|
|
1172 | CODE: |
1739 | CODE: |
1173 | api_cede (); |
1740 | { |
|
|
1741 | struct coro *coro = SvSTATE (coro_current); |
1174 | |
1742 | |
1175 | # and these are hacks |
1743 | sv_setsv (cb, &PL_sv_undef); |
|
|
1744 | |
|
|
1745 | if (coro_rss (aTHX_ coro) > SvIV (sv_pool_rss) |
|
|
1746 | || av_len (av_async_pool) + 1 >= SvIV (sv_pool_size)) |
|
|
1747 | croak ("\3terminate\2\n"); |
|
|
1748 | |
|
|
1749 | av_clear (GvAV (PL_defgv)); |
|
|
1750 | hv_store ((HV *)SvRV (coro_current), "desc", sizeof ("desc") - 1, |
|
|
1751 | newSVpvn ("[async_pool idle]", sizeof ("[async_pool idle]") - 1), 0); |
|
|
1752 | |
|
|
1753 | coro->prio = 0; |
|
|
1754 | |
|
|
1755 | if (coro->cctx && (coro->cctx->flags & CC_TRACE)) |
|
|
1756 | api_trace (coro_current, 0); |
|
|
1757 | |
|
|
1758 | av_push (av_async_pool, newSVsv (coro_current)); |
|
|
1759 | } |
|
|
1760 | |
|
|
1761 | |
|
|
1762 | MODULE = Coro::State PACKAGE = Coro::AIO |
|
|
1763 | |
1176 | SV * |
1764 | SV * |
1177 | _aio_get_state () |
1765 | _get_state () |
1178 | CODE: |
1766 | CODE: |
1179 | { |
1767 | { |
1180 | struct { |
1768 | struct io_state *data; |
1181 | int errorno; |
|
|
1182 | int laststype; |
|
|
1183 | int laststatval; |
|
|
1184 | Stat_t statcache; |
|
|
1185 | } data; |
|
|
1186 | |
1769 | |
|
|
1770 | RETVAL = newSV (sizeof (struct io_state)); |
|
|
1771 | data = (struct io_state *)SvPVX (RETVAL); |
|
|
1772 | SvCUR_set (RETVAL, sizeof (struct io_state)); |
|
|
1773 | SvPOK_only (RETVAL); |
|
|
1774 | |
1187 | data.errorno = errno; |
1775 | data->errorno = errno; |
1188 | data.laststype = PL_laststype; |
1776 | data->laststype = PL_laststype; |
1189 | data.laststatval = PL_laststatval; |
1777 | data->laststatval = PL_laststatval; |
1190 | data.statcache = PL_statcache; |
1778 | data->statcache = PL_statcache; |
1191 | |
|
|
1192 | RETVAL = newSVpvn ((char *)&data, sizeof data); |
|
|
1193 | } |
1779 | } |
1194 | OUTPUT: |
1780 | OUTPUT: |
1195 | RETVAL |
1781 | RETVAL |
1196 | |
1782 | |
1197 | void |
1783 | void |
1198 | _aio_set_state (char *data_) |
1784 | _set_state (char *data_) |
1199 | PROTOTYPE: $ |
1785 | PROTOTYPE: $ |
1200 | CODE: |
1786 | CODE: |
1201 | { |
1787 | { |
1202 | struct { |
1788 | struct io_state *data = (void *)data_; |
1203 | int errorno; |
|
|
1204 | int laststype; |
|
|
1205 | int laststatval; |
|
|
1206 | Stat_t statcache; |
|
|
1207 | } *data = (void *)data_; |
|
|
1208 | |
1789 | |
1209 | errno = data->errorno; |
1790 | errno = data->errorno; |
1210 | PL_laststype = data->laststype; |
1791 | PL_laststype = data->laststype; |
1211 | PL_laststatval = data->laststatval; |
1792 | PL_laststatval = data->laststatval; |
1212 | PL_statcache = data->statcache; |
1793 | PL_statcache = data->statcache; |
1213 | } |
1794 | } |
|
|
1795 | |