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/cvs/libcoro/coro.h
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Comparing libcoro/coro.h (file contents):
Revision 1.39 by root, Sun Nov 16 00:55:41 2008 UTC vs.
Revision 1.44 by root, Fri Dec 3 19:21:59 2010 UTC

1/* 1/*
2 * Copyright (c) 2001-2008 Marc Alexander Lehmann <schmorp@schmorp.de> 2 * Copyright (c) 2001-2009 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,
… …
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. 69 * 2008-11-16 work around a freebsd pthread bug.
70 * 2008-11-19 define coro_*jmp symbols for easier porting.
71 * 2009-06-23 tentative win32-backend support for mingw32 (Yasuhiro Matsumoto).
72 * 2010-12-03 tentative support for uclibc (which lacks all sorts of things).
70 */ 73 */
71 74
72#ifndef CORO_H 75#ifndef CORO_H
73#define CORO_H 76#define CORO_H
77
78#if __cplusplus
79extern "C" {
80#endif
74 81
75#define CORO_VERSION 2 82#define CORO_VERSION 2
76 83
77/* 84/*
78 * Changes since API version 1: 85 * Changes since API version 1:
… …
239# define _XOPEN_UNIX 1 246# define _XOPEN_UNIX 1
240# endif 247# endif
241 248
242# include <setjmp.h> 249# include <setjmp.h>
243 250
251# if _XOPEN_UNIX > 0 || defined (_setjmp)
252# define coro_jmp_buf jmp_buf
253# define coro_setjmp(env) _setjmp (env)
254# define coro_longjmp(env) _longjmp ((env), 1)
255# elif CORO_LOSER
256# define coro_jmp_buf jmp_buf
257# define coro_setjmp(env) setjmp (env)
258# define coro_longjmp(env) longjmp ((env), 1)
259# else
260# define coro_jmp_buf sigjmp_buf
261# define coro_setjmp(env) sigsetjmp (env, 0)
262# define coro_longjmp(env) siglongjmp ((env), 1)
263# endif
264
244struct coro_context { 265struct coro_context {
245#if _XOPEN_UNIX > 0 || CORO_LOSER
246 jmp_buf env; 266 coro_jmp_buf env;
247#else
248 sigjmp_buf env;
249#endif
250}; 267};
251 268
252# if _XOPEN_UNIX > 0
253# define coro_transfer(p,n) do { if (! _setjmp ((p)->env )) _longjmp ((n)->env, 1); } while (0) 269# define coro_transfer(p,n) do { if (!coro_setjmp ((p)->env)) coro_longjmp ((n)->env); } while (0)
254# elif CORO_LOSER
255# define coro_transfer(p,n) do { if (! setjmp ((p)->env )) longjmp ((n)->env, 1); } while (0)
256# else
257# define coro_transfer(p,n) do { if (!sigsetjmp ((p)->env, 0)) siglongjmp ((n)->env, 1); } while (0)
258# endif
259
260# define coro_destroy(ctx) (void *)(ctx) 270# define coro_destroy(ctx) (void *)(ctx)
261 271
262#elif CORO_ASM 272#elif CORO_ASM
263 273
264struct coro_context { 274struct coro_context {
… …
284void coro_transfer (coro_context *prev, coro_context *next); 294void coro_transfer (coro_context *prev, coro_context *next);
285void coro_destroy (coro_context *ctx); 295void coro_destroy (coro_context *ctx);
286 296
287#endif 297#endif
288 298
299#if __cplusplus
300}
289#endif 301#endif
290 302
303#endif
304

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