1 | /* |
1 | /* |
2 | * Copyright (c) 2001-2008 Marc Alexander Lehmann <schmorp@schmorp.de> |
2 | * Copyright (c) 2001-2011 Marc Alexander Lehmann <schmorp@schmorp.de> |
3 | * |
3 | * |
4 | * Redistribution and use in source and binary forms, with or without modifica- |
4 | * Redistribution and use in source and binary forms, with or without modifica- |
5 | * tion, are permitted provided that the following conditions are met: |
5 | * tion, are permitted provided that the following conditions are met: |
6 | * |
6 | * |
7 | * 1. Redistributions of source code must retain the above copyright notice, |
7 | * 1. Redistributions of source code must retain the above copyright notice, |
8 | * this list of conditions and the following disclaimer. |
8 | * this list of conditions and the following disclaimer. |
9 | * |
9 | * |
10 | * 2. Redistributions in binary form must reproduce the above copyright |
10 | * 2. Redistributions in binary form must reproduce the above copyright |
11 | * notice, this list of conditions and the following disclaimer in the |
11 | * notice, this list of conditions and the following disclaimer in the |
12 | * documentation and/or other materials provided with the distribution. |
12 | * documentation and/or other materials provided with the distribution. |
13 | * |
13 | * |
14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
14 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
15 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
15 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MER- |
16 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
16 | * CHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO |
17 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
17 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPE- |
18 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
18 | * CIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
… | |
… | |
74 | # include <stdio.h> |
74 | # include <stdio.h> |
75 | # include <signal.h> |
75 | # include <signal.h> |
76 | # include <unistd.h> |
76 | # include <unistd.h> |
77 | # endif |
77 | # endif |
78 | |
78 | |
79 | static volatile coro_func coro_init_func; |
79 | static coro_func coro_init_func; |
80 | static volatile void *coro_init_arg; |
80 | static void *coro_init_arg; |
81 | static volatile coro_context *new_coro, *create_coro; |
81 | static coro_context *new_coro, *create_coro; |
82 | |
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83 | /* what we really want to detect here is wether we use a new-enough version of GAS */ |
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84 | /* with dwarf debug info. instead, check for gcc 3, ELF and GNU/Linux and hope for the best */ |
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85 | # if __GNUC__ >= 3 && __ELF__ && __linux__ |
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86 | # define HAVE_CFI 1 |
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87 | # endif |
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88 | |
82 | |
89 | static void |
83 | static void |
90 | coro_init (void) |
84 | coro_init (void) |
91 | { |
85 | { |
92 | volatile coro_func func = coro_init_func; |
86 | volatile coro_func func = coro_init_func; |
93 | volatile void *arg = coro_init_arg; |
87 | volatile void *arg = coro_init_arg; |
94 | |
88 | |
95 | coro_transfer ((coro_context *)new_coro, (coro_context *)create_coro); |
89 | coro_transfer (new_coro, create_coro); |
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90 | |
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91 | #if __GCC_HAVE_DWARF2_CFI_ASM && __amd64 |
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92 | asm (".cfi_undefined rip"); |
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93 | #endif |
96 | |
94 | |
97 | func ((void *)arg); |
95 | func ((void *)arg); |
98 | |
96 | |
99 | /* the new coro returned. bad. just abort() for now */ |
97 | /* the new coro returned. bad. just abort() for now */ |
100 | abort (); |
98 | abort (); |
… | |
… | |
106 | |
104 | |
107 | /* trampoline signal handler */ |
105 | /* trampoline signal handler */ |
108 | static void |
106 | static void |
109 | trampoline (int sig) |
107 | trampoline (int sig) |
110 | { |
108 | { |
111 | if ( |
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112 | #if _XOPEN_UNIX > 0 |
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113 | _setjmp (new_coro->env) |
109 | if (coro_setjmp (new_coro->env)) |
114 | #else |
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115 | setjmp (new_coro->env) |
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116 | #endif |
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117 | ) { |
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118 | #if HAVE_CFI |
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119 | asm (".cfi_startproc"); |
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120 | #endif |
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121 | coro_init (); /* start it */ |
110 | coro_init (); /* start it */ |
122 | #if HAVE_CFI |
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123 | asm (".cfi_endproc"); |
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124 | #endif |
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125 | } |
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126 | else |
111 | else |
127 | trampoline_done = 1; |
112 | trampoline_done = 1; |
128 | } |
113 | } |
129 | |
114 | |
130 | # endif |
115 | # endif |
131 | |
116 | |
132 | # if CORO_ASM |
117 | # if CORO_ASM |
133 | |
118 | |
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119 | #if _WIN32 || __CYGWIN__ |
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120 | #define CORO_WIN_TIB 1 |
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121 | #endif |
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122 | |
134 | asm ( |
123 | asm ( |
135 | ".text\n" |
124 | "\t.text\n" |
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125 | #if _WIN32 || __CYGWIN__ |
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126 | "\t.globl _coro_transfer\n" |
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127 | "_coro_transfer:\n" |
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128 | #else |
136 | ".globl coro_transfer\n" |
129 | "\t.globl coro_transfer\n" |
137 | ".type coro_transfer, @function\n" |
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138 | "coro_transfer:\n" |
130 | "coro_transfer:\n" |
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131 | #endif |
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132 | /* windows, of course, gives a shit on the amd64 ABI and uses different registers */ |
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133 | /* http://blogs.msdn.com/freik/archive/2005/03/17/398200.aspx */ |
139 | #if __amd64 |
134 | #if __amd64 |
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135 | |
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136 | #if _WIN32 || __CYGWIN__ |
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137 | #define NUM_SAVED 29 |
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138 | "\tsubq $168, %rsp\t" /* one dummy qword to improve alignment */ |
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139 | "\tmovaps %xmm6, (%rsp)\n" |
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140 | "\tmovaps %xmm7, 16(%rsp)\n" |
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141 | "\tmovaps %xmm8, 32(%rsp)\n" |
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142 | "\tmovaps %xmm9, 48(%rsp)\n" |
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143 | "\tmovaps %xmm10, 64(%rsp)\n" |
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144 | "\tmovaps %xmm11, 80(%rsp)\n" |
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145 | "\tmovaps %xmm12, 96(%rsp)\n" |
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146 | "\tmovaps %xmm13, 112(%rsp)\n" |
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147 | "\tmovaps %xmm14, 128(%rsp)\n" |
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148 | "\tmovaps %xmm15, 144(%rsp)\n" |
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149 | "\tpushq %rsi\n" |
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150 | "\tpushq %rdi\n" |
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151 | "\tpushq %rbp\n" |
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152 | "\tpushq %rbx\n" |
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153 | "\tpushq %r12\n" |
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154 | "\tpushq %r13\n" |
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155 | "\tpushq %r14\n" |
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156 | "\tpushq %r15\n" |
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157 | #if CORO_WIN_TIB |
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158 | "\tpushq %fs:0x0\n" |
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159 | "\tpushq %fs:0x8\n" |
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160 | "\tpushq %fs:0xc\n" |
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161 | #endif |
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162 | "\tmovq %rsp, (%rcx)\n" |
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163 | "\tmovq (%rdx), %rsp\n" |
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164 | #if CORO_WIN_TIB |
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165 | "\tpopq %fs:0xc\n" |
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166 | "\tpopq %fs:0x8\n" |
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167 | "\tpopq %fs:0x0\n" |
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168 | #endif |
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169 | "\tpopq %r15\n" |
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170 | "\tpopq %r14\n" |
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171 | "\tpopq %r13\n" |
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172 | "\tpopq %r12\n" |
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173 | "\tpopq %rbx\n" |
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174 | "\tpopq %rbp\n" |
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175 | "\tpopq %rdi\n" |
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176 | "\tpopq %rsi\n" |
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177 | "\tmovaps (%rsp), %xmm6\n" |
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178 | "\tmovaps 16(%rsp), %xmm7\n" |
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179 | "\tmovaps 32(%rsp), %xmm8\n" |
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180 | "\tmovaps 48(%rsp), %xmm9\n" |
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181 | "\tmovaps 64(%rsp), %xmm10\n" |
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182 | "\tmovaps 80(%rsp), %xmm11\n" |
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183 | "\tmovaps 96(%rsp), %xmm12\n" |
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184 | "\tmovaps 112(%rsp), %xmm13\n" |
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185 | "\tmovaps 128(%rsp), %xmm14\n" |
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186 | "\tmovaps 144(%rsp), %xmm15\n" |
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187 | "\taddq $168, %rsp\n" |
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188 | #else |
140 | #define NUM_SAVED 6 |
189 | #define NUM_SAVED 6 |
141 | "\tpush %rbp\n" |
190 | "\tpushq %rbp\n" |
142 | "\tpush %rbx\n" |
191 | "\tpushq %rbx\n" |
143 | "\tpush %r12\n" |
192 | "\tpushq %r12\n" |
144 | "\tpush %r13\n" |
193 | "\tpushq %r13\n" |
145 | "\tpush %r14\n" |
194 | "\tpushq %r14\n" |
146 | "\tpush %r15\n" |
195 | "\tpushq %r15\n" |
147 | "\tmov %rsp, (%rdi)\n" |
196 | "\tmovq %rsp, (%rdi)\n" |
148 | "\tmov (%rsi), %rsp\n" |
197 | "\tmovq (%rsi), %rsp\n" |
149 | "\tpop %r15\n" |
198 | "\tpopq %r15\n" |
150 | "\tpop %r14\n" |
199 | "\tpopq %r14\n" |
151 | "\tpop %r13\n" |
200 | "\tpopq %r13\n" |
152 | "\tpop %r12\n" |
201 | "\tpopq %r12\n" |
153 | "\tpop %rbx\n" |
202 | "\tpopq %rbx\n" |
154 | "\tpop %rbp\n" |
203 | "\tpopq %rbp\n" |
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204 | #endif |
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205 | "\tpopq %rcx\n" |
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206 | "\tjmpq *%rcx\n" |
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207 | |
155 | #elif __i386 |
208 | #elif __i386 |
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209 | |
156 | #define NUM_SAVED 4 |
210 | #define NUM_SAVED 4 |
157 | "\tpush %ebp\n" |
211 | "\tpushl %ebp\n" |
158 | "\tpush %ebx\n" |
212 | "\tpushl %ebx\n" |
159 | "\tpush %esi\n" |
213 | "\tpushl %esi\n" |
160 | "\tpush %edi\n" |
214 | "\tpushl %edi\n" |
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215 | #if CORO_WIN_TIB |
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216 | #undef NUM_SAVED |
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217 | #define NUM_SAVED 7 |
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218 | "\tpushl %fs:0\n" |
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219 | "\tpushl %fs:4\n" |
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220 | "\tpushl %fs:8\n" |
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221 | #endif |
161 | "\tmov %esp, (%eax)\n" |
222 | "\tmovl %esp, (%eax)\n" |
162 | "\tmov (%edx), %esp\n" |
223 | "\tmovl (%edx), %esp\n" |
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224 | #if CORO_WIN_TIB |
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225 | "\tpopl %fs:8\n" |
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226 | "\tpopl %fs:4\n" |
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227 | "\tpopl %fs:0\n" |
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228 | #endif |
163 | "\tpop %edi\n" |
229 | "\tpopl %edi\n" |
164 | "\tpop %esi\n" |
230 | "\tpopl %esi\n" |
165 | "\tpop %ebx\n" |
231 | "\tpopl %ebx\n" |
166 | "\tpop %ebp\n" |
232 | "\tpopl %ebp\n" |
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233 | "\tpopl %ecx\n" |
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234 | "\tjmpl *%ecx\n" |
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235 | |
167 | #else |
236 | #else |
168 | #error unsupported architecture |
237 | #error unsupported architecture |
169 | #endif |
238 | #endif |
170 | "\tret\n" |
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171 | ); |
239 | ); |
172 | |
240 | |
173 | # endif |
241 | # endif |
174 | |
242 | |
175 | void |
243 | void |
… | |
… | |
207 | perror ("sigaction"); |
275 | perror ("sigaction"); |
208 | abort (); |
276 | abort (); |
209 | } |
277 | } |
210 | |
278 | |
211 | /* set the new stack */ |
279 | /* set the new stack */ |
212 | nstk.ss_sp = STACK_ADJUST_PTR (sptr,ssize); /* yes, some platforms (IRIX) get this wrong. */ |
280 | nstk.ss_sp = STACK_ADJUST_PTR (sptr, ssize); /* yes, some platforms (IRIX) get this wrong. */ |
213 | nstk.ss_size = STACK_ADJUST_SIZE (sptr,ssize); |
281 | nstk.ss_size = STACK_ADJUST_SIZE (sptr, ssize); |
214 | nstk.ss_flags = 0; |
282 | nstk.ss_flags = 0; |
215 | |
283 | |
216 | if (sigaltstack (&nstk, &ostk) < 0) |
284 | if (sigaltstack (&nstk, &ostk) < 0) |
217 | { |
285 | { |
218 | perror ("sigaltstack"); |
286 | perror ("sigaltstack"); |
… | |
… | |
241 | sigaction (SIGUSR2, &osa, 0); |
309 | sigaction (SIGUSR2, &osa, 0); |
242 | sigprocmask (SIG_SETMASK, &osig, 0); |
310 | sigprocmask (SIG_SETMASK, &osig, 0); |
243 | |
311 | |
244 | # elif CORO_LOSER |
312 | # elif CORO_LOSER |
245 | |
313 | |
246 | setjmp (ctx->env); |
314 | coro_setjmp (ctx->env); |
247 | #if __CYGWIN__ |
315 | #if __CYGWIN__ && __i386 |
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316 | ctx->env[8] = (long) coro_init; |
248 | ctx->env[7] = (long)((char *)sptr + ssize) - sizeof (long); |
317 | ctx->env[7] = (long) ((char *)sptr + ssize) - sizeof (long); |
249 | ctx->env[8] = (long)coro_init; |
318 | #elif __CYGWIN__ && __x86_64 |
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319 | ctx->env[7] = (long) coro_init; |
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320 | ctx->env[6] = (long) ((char *)sptr + ssize) - sizeof (long); |
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321 | #elif defined __MINGW32__ |
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322 | ctx->env[5] = (long) coro_init; |
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323 | ctx->env[4] = (long) ((char *)sptr + ssize) - sizeof (long); |
250 | #elif defined(_M_IX86) |
324 | #elif defined _M_IX86 |
251 | ((_JUMP_BUFFER *)&ctx->env)->Eip = (long)coro_init; |
325 | ((_JUMP_BUFFER *)&ctx->env)->Eip = (long) coro_init; |
252 | ((_JUMP_BUFFER *)&ctx->env)->Esp = (long)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
326 | ((_JUMP_BUFFER *)&ctx->env)->Esp = (long) STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
253 | #elif defined(_M_AMD64) |
327 | #elif defined _M_AMD64 |
254 | ((_JUMP_BUFFER *)&ctx->env)->Rip = (__int64)coro_init; |
328 | ((_JUMP_BUFFER *)&ctx->env)->Rip = (__int64) coro_init; |
255 | ((_JUMP_BUFFER *)&ctx->env)->Rsp = (__int64)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
329 | ((_JUMP_BUFFER *)&ctx->env)->Rsp = (__int64) STACK_ADJUST_PTR (sptr, ssize) - sizeof (__int64); |
256 | #elif defined(_M_IA64) |
330 | #elif defined _M_IA64 |
257 | ((_JUMP_BUFFER *)&ctx->env)->StIIP = (__int64)coro_init; |
331 | ((_JUMP_BUFFER *)&ctx->env)->StIIP = (__int64) coro_init; |
258 | ((_JUMP_BUFFER *)&ctx->env)->IntSp = (__int64)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
332 | ((_JUMP_BUFFER *)&ctx->env)->IntSp = (__int64) STACK_ADJUST_PTR (sptr, ssize) - sizeof (__int64); |
259 | #else |
333 | #else |
260 | #error "microsoft libc or architecture not supported" |
334 | #error "microsoft libc or architecture not supported" |
261 | #endif |
335 | #endif |
262 | |
336 | |
263 | # elif CORO_LINUX |
337 | # elif CORO_LINUX |
264 | |
338 | |
265 | _setjmp (ctx->env); |
339 | coro_setjmp (ctx->env); |
266 | #if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (JB_PC) && defined (JB_SP) |
340 | #if __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (JB_PC) && defined (JB_SP) |
267 | ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; |
341 | ctx->env[0].__jmpbuf[JB_PC] = (long) coro_init; |
268 | ctx->env[0].__jmpbuf[JB_SP] = (long)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
342 | ctx->env[0].__jmpbuf[JB_SP] = (long) STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
269 | #elif __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (__mc68000__) |
343 | #elif __GLIBC__ >= 2 && __GLIBC_MINOR__ >= 0 && defined (__mc68000__) |
270 | ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init; |
344 | ctx->env[0].__jmpbuf[0].__aregs[0] = (long int)coro_init; |
271 | ctx->env[0].__jmpbuf[0].__sp = (int *)((char *)sptr + ssize) - sizeof (long); |
345 | ctx->env[0].__jmpbuf[0].__sp = (int *) ((char *)sptr + ssize) - sizeof (long); |
272 | #elif defined (__GNU_LIBRARY__) && defined (__i386__) |
346 | #elif defined (__GNU_LIBRARY__) && defined (__i386__) |
273 | ctx->env[0].__jmpbuf[0].__pc = (char *)coro_init; |
347 | ctx->env[0].__jmpbuf[0].__pc = (char *) coro_init; |
274 | ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize) - sizeof (long); |
348 | ctx->env[0].__jmpbuf[0].__sp = (void *) ((char *)sptr + ssize) - sizeof (long); |
275 | #elif defined (__GNU_LIBRARY__) && defined (__amd64__) |
349 | #elif defined (__GNU_LIBRARY__) && defined (__amd64__) |
276 | ctx->env[0].__jmpbuf[JB_PC] = (long)coro_init; |
350 | ctx->env[0].__jmpbuf[JB_PC] = (long) coro_init; |
277 | ctx->env[0].__jmpbuf[0].__sp = (void *)((char *)sptr + ssize) - sizeof (long); |
351 | ctx->env[0].__jmpbuf[0].__sp = (void *) ((char *)sptr + ssize) - sizeof (long); |
278 | #else |
352 | #else |
279 | #error "linux libc or architecture not supported" |
353 | #error "linux libc or architecture not supported" |
280 | #endif |
354 | #endif |
281 | |
355 | |
282 | # elif CORO_IRIX |
356 | # elif CORO_IRIX |
283 | |
357 | |
284 | setjmp (ctx->env); |
358 | coro_setjmp (ctx->env, 0); |
285 | ctx->env[JB_PC] = (__uint64_t)coro_init; |
359 | ctx->env[JB_PC] = (__uint64_t)coro_init; |
286 | ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
360 | ctx->env[JB_SP] = (__uint64_t)STACK_ADJUST_PTR (sptr, ssize) - sizeof (long); |
287 | |
361 | |
288 | # elif CORO_ASM |
362 | # elif CORO_ASM |
289 | |
363 | |
290 | ctx->sp = (volatile void **)(ssize + (char *)sptr); |
364 | ctx->sp = (void **)(ssize + (char *)sptr); |
291 | *--ctx->sp = (void *)abort; /* needed for alignment only */ |
365 | *--ctx->sp = (void *)abort; /* needed for alignment only */ |
292 | *--ctx->sp = (void *)coro_init; |
366 | *--ctx->sp = (void *)coro_init; |
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367 | |
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368 | #if CORO_WIN_TIB |
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369 | *--ctx->sp = 0; /* ExceptionList */ |
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370 | *--ctx->sp = (char *)sptr + ssize; /* StackBase */ |
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371 | *--ctx->sp = sptr; /* StackLimit */ |
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372 | #endif |
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373 | |
293 | ctx->sp -= NUM_SAVED; |
374 | ctx->sp -= NUM_SAVED; |
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375 | memset (ctx->sp, 0, sizeof (*ctx->sp) * NUM_SAVED); |
294 | |
376 | |
295 | # elif CORO_UCONTEXT |
377 | # elif CORO_UCONTEXT |
296 | |
378 | |
297 | getcontext (&(ctx->uc)); |
379 | getcontext (&(ctx->uc)); |
298 | |
380 | |
… | |
… | |
306 | # endif |
388 | # endif |
307 | |
389 | |
308 | coro_transfer (create_coro, new_coro); |
390 | coro_transfer (create_coro, new_coro); |
309 | } |
391 | } |
310 | |
392 | |
311 | #endif |
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312 | |
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313 | /*****************************************************************************/ |
393 | /*****************************************************************************/ |
314 | /* pthread backend */ |
394 | /* pthread backend */ |
315 | /*****************************************************************************/ |
395 | /*****************************************************************************/ |
316 | |
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317 | #if CORO_PTHREAD |
396 | #elif CORO_PTHREAD |
318 | |
397 | |
319 | /* this mutex will be locked by the running coroutine */ |
398 | /* this mutex will be locked by the running coroutine */ |
320 | pthread_mutex_t coro_mutex = PTHREAD_MUTEX_INITIALIZER; |
399 | pthread_mutex_t coro_mutex = PTHREAD_MUTEX_INITIALIZER; |
321 | |
400 | |
322 | struct coro_init_args |
401 | struct coro_init_args |
… | |
… | |
356 | void |
435 | void |
357 | coro_transfer (coro_context *prev, coro_context *next) |
436 | coro_transfer (coro_context *prev, coro_context *next) |
358 | { |
437 | { |
359 | pthread_cond_signal (&next->cv); |
438 | pthread_cond_signal (&next->cv); |
360 | pthread_cond_wait (&prev->cv, &coro_mutex); |
439 | pthread_cond_wait (&prev->cv, &coro_mutex); |
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440 | #if __FreeBSD__ /* freebsd is of course broken and needs manual testcancel calls... yay... */ |
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441 | pthread_testcancel (); |
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442 | #endif |
361 | } |
443 | } |
362 | |
444 | |
363 | void |
445 | void |
364 | coro_create (coro_context *ctx, coro_func coro, void *arg, void *sptr, long ssize) |
446 | coro_create (coro_context *ctx, coro_func coro, void *arg, void *sptr, long ssize) |
365 | { |
447 | { |
… | |
… | |
386 | args.arg = arg; |
468 | args.arg = arg; |
387 | args.self = ctx; |
469 | args.self = ctx; |
388 | args.main = &nctx; |
470 | args.main = &nctx; |
389 | |
471 | |
390 | pthread_attr_init (&attr); |
472 | pthread_attr_init (&attr); |
|
|
473 | #if __UCLIBC__ |
|
|
474 | /* exists, but is borked */ |
|
|
475 | /*pthread_attr_setstacksize (&attr, (size_t)ssize);*/ |
|
|
476 | #elif __CYGWIN__ |
|
|
477 | /* POSIX, not here */ |
|
|
478 | pthread_attr_setstacksize (&attr, (size_t)ssize); |
|
|
479 | #else |
391 | pthread_attr_setstack (&attr, sptr, (size_t)ssize); |
480 | pthread_attr_setstack (&attr, sptr, (size_t)ssize); |
|
|
481 | #endif |
392 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
482 | pthread_attr_setscope (&attr, PTHREAD_SCOPE_PROCESS); |
393 | pthread_create (&ctx->id, &attr, coro_init, &args); |
483 | pthread_create (&ctx->id, &attr, coro_init, &args); |
394 | |
484 | |
395 | coro_transfer (args.main, args.self); |
485 | coro_transfer (args.main, args.self); |
396 | } |
486 | } |
… | |
… | |
410 | } |
500 | } |
411 | |
501 | |
412 | pthread_cond_destroy (&ctx->cv); |
502 | pthread_cond_destroy (&ctx->cv); |
413 | } |
503 | } |
414 | |
504 | |
|
|
505 | /*****************************************************************************/ |
|
|
506 | /* fiber backend */ |
|
|
507 | /*****************************************************************************/ |
|
|
508 | #elif CORO_FIBER |
|
|
509 | |
|
|
510 | #define WIN32_LEAN_AND_MEAN |
|
|
511 | #include <windows.h> |
|
|
512 | |
|
|
513 | VOID CALLBACK |
|
|
514 | coro_init (PVOID arg) |
|
|
515 | { |
|
|
516 | coro_context *ctx = (coro_context *)arg; |
|
|
517 | |
|
|
518 | ctx->coro (ctx->arg); |
|
|
519 | } |
|
|
520 | |
|
|
521 | void |
|
|
522 | coro_transfer (coro_context *prev, coro_context *next) |
|
|
523 | { |
|
|
524 | if (!prev->fiber) |
|
|
525 | { |
|
|
526 | prev->fiber = GetCurrentFiber (); |
|
|
527 | |
|
|
528 | if (prev->fiber == 0 || prev->fiber == (void *)0x1e00) |
|
|
529 | prev->fiber = ConvertThreadToFiber (0); |
|
|
530 | } |
|
|
531 | |
|
|
532 | SwitchToFiber (next->fiber); |
|
|
533 | } |
|
|
534 | |
|
|
535 | void |
|
|
536 | coro_create (coro_context *ctx, coro_func coro, void *arg, void *sptr, long ssize) |
|
|
537 | { |
|
|
538 | ctx->fiber = 0; |
|
|
539 | ctx->coro = coro; |
|
|
540 | ctx->arg = arg; |
|
|
541 | |
|
|
542 | if (!coro) |
|
|
543 | return; |
|
|
544 | |
|
|
545 | ctx->fiber = CreateFiber (ssize, coro_init, ctx); |
|
|
546 | } |
|
|
547 | |
|
|
548 | void |
|
|
549 | coro_destroy (coro_context *ctx) |
|
|
550 | { |
|
|
551 | DeleteFiber (ctx->fiber); |
|
|
552 | } |
|
|
553 | |
|
|
554 | #else |
|
|
555 | # error unsupported backend |
415 | #endif |
556 | #endif |
416 | |
557 | |