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Comparing libcoro/coro.h (file contents):
Revision 1.38 by root, Fri Nov 14 05:27:08 2008 UTC vs.
Revision 1.40 by root, Wed Nov 19 02:56:16 2008 UTC

… …
64 * coro_create now allows one to create source coro_contexts. 64 * coro_create now allows one to create source coro_contexts.
65 * do not rely on makecontext passing a void * correctly. 65 * do not rely on makecontext passing a void * correctly.
66 * try harder to get _setjmp/_longjmp. 66 * try harder to get _setjmp/_longjmp.
67 * major code cleanup/restructuring. 67 * major code cleanup/restructuring.
68 * 2008-11-10 the .cfi hacks are no longer needed. 68 * 2008-11-10 the .cfi hacks are no longer needed.
69 * 2008-11-16 work around a freebsd pthread bug.
70 * 2008-11-19 define coro_*jmp symbols for easier porting.
69 */ 71 */
70 72
71#ifndef CORO_H 73#ifndef CORO_H
72#define CORO_H 74#define CORO_H
73 75
… …
115 * SGI's version of Microsoft's NT ;) 117 * SGI's version of Microsoft's NT ;)
116 * 118 *
117 * -DCORO_ASM 119 * -DCORO_ASM
118 * 120 *
119 * Handcoded assembly, known to work only on a few architectures/ABI: 121 * Handcoded assembly, known to work only on a few architectures/ABI:
120 * ELF Linux x86 && amd64 when gcc is used and optimisation is turned on. 122 * GCC + x86/IA32 and amd64/x86_64 + GNU/Linux and a few BSDs.
121 * 123 *
122 * -DCORO_PTHREAD 124 * -DCORO_PTHREAD
123 * 125 *
124 * Use the pthread API. You have to provide <pthread.h> and -lpthread. 126 * Use the pthread API. You have to provide <pthread.h> and -lpthread.
127 * This is likely the slowest backend, and it also does not support fork(),
128 * so avoid it at all costs.
125 * 129 *
126 * If you define neither of these symbols, coro.h will try to autodetect 130 * If you define neither of these symbols, coro.h will try to autodetect
127 * the model. This currently works for CORO_LOSER only. For the other 131 * the model. This currently works for CORO_LOSER only. For the other
128 * alternatives you should check (e.g. using autoconf) and define the 132 * alternatives you should check (e.g. using autoconf) and define the
129 * following symbols: HAVE_UCONTEXT_H / HAVE_SETJMP_H / HAVE_SIGALTSTACK. 133 * following symbols: HAVE_UCONTEXT_H / HAVE_SETJMP_H / HAVE_SIGALTSTACK.
… …
236# define _XOPEN_UNIX 1 240# define _XOPEN_UNIX 1
237# endif 241# endif
238 242
239# include <setjmp.h> 243# include <setjmp.h>
240 244
241struct coro_context { 245# if _XOPEN_UNIX > 0 || defined (_setjmp)
242#if _XOPEN_UNIX > 0 || CORO_LOSER 246# define coro_jmp_buf jmp_buf
243 jmp_buf env; 247# define coro_setjmp(env) _setjmp (env)
244#else 248# define coro_longjmp(env) _longjmp ((env), 1)
245 sigjmp_buf env;
246#endif
247};
248
249# if _XOPEN_UNIX > 0
250# define coro_transfer(p,n) do { if (! _setjmp ((p)->env )) _longjmp ((n)->env, 1); } while (0)
251# elif CORO_LOSER 249# elif CORO_LOSER
252# define coro_transfer(p,n) do { if (! setjmp ((p)->env )) longjmp ((n)->env, 1); } while (0) 250# define coro_jmp_buf jmp_buf
251# define coro_setjmp(env) setjmp (env)
252# define coro_longjmp(env) longjmp ((env), 1)
253# else 253# else
254# define coro_jmp_buf sigjmp_buf
255# define coro_setjmp(env) sigsetjmp (env, 0)
256# define coro_longjmp(env) siglongjmp ((env), 1)
257# endif
258
259struct coro_context {
260 coro_jmp_buf env;
261};
262
254# define coro_transfer(p,n) do { if (!sigsetjmp ((p)->env, 0)) siglongjmp ((n)->env, 1); } while (0) 263# define coro_transfer(p,n) do { if (!coro_setjmp ((p)->env)) coro_longjmp ((n)->env); } while (0)
255# endif
256
257# define coro_destroy(ctx) (void *)(ctx) 264# define coro_destroy(ctx) (void *)(ctx)
258 265
259#elif CORO_ASM 266#elif CORO_ASM
260 267
261struct coro_context { 268struct coro_context {

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