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Comparing libcoro/coro.h (file contents):
Revision 1.17 by root, Sun Nov 26 03:18:51 2006 UTC vs.
Revision 1.21 by root, Fri Apr 27 19:35:28 2007 UTC

… …
37 37
38/* 38/*
39 * 2006-10-26 Include stddef.h on OS X to work around one of its bugs. 39 * 2006-10-26 Include stddef.h on OS X to work around one of its bugs.
40 * Reported by Michael_G_Schwern. 40 * Reported by Michael_G_Schwern.
41 * 2006-11-26 Use _setjmp instead of setjmp on GNU/Linux. 41 * 2006-11-26 Use _setjmp instead of setjmp on GNU/Linux.
42 * 2007-04-27 Set unwind frame info if gcc 3+ and ELF is detected.
43 * Use _setjmp instead of setjmp on _XOPEN_SOURCE >= 600.
42 */ 44 */
43 45
44#ifndef CORO_H 46#ifndef CORO_H
45#define CORO_H 47#define CORO_H
46 48
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99 * This is the type for the initialization function of a new coroutine. 101 * This is the type for the initialization function of a new coroutine.
100 */ 102 */
101typedef void (*coro_func)(void *); 103typedef void (*coro_func)(void *);
102 104
103/* 105/*
104 * A coroutine state is saved in the following structure. Treat it as a 106 * A coroutine state is saved in the following structure. Treat it as an
105 * opaque type. errno and sigmask might be saved, but don't rely on it, 107 * opaque type. errno and sigmask might be saved, but don't rely on it,
106 * implement your own switching primitive if you need it. 108 * implement your own switching primitive if you need that.
107 */ 109 */
108typedef struct coro_context coro_context; 110typedef struct coro_context coro_context;
109 111
110/* 112/*
111 * This function creates a new coroutine. Apart from a pointer to an 113 * This function creates a new coroutine. Apart from a pointer to an
… …
113 * and the single pointer value that is given to it as argument. 115 * and the single pointer value that is given to it as argument.
114 * 116 *
115 * Allocating/deallocating the stack is your own responsibility, so there is 117 * Allocating/deallocating the stack is your own responsibility, so there is
116 * no coro_destroy function. 118 * no coro_destroy function.
117 */ 119 */
118void coro_create (coro_context *ctx, 120void coro_create (coro_context *ctx, /* an uninitialised coro_context */
119 coro_func coro, void *arg, 121 coro_func coro, /* the coroutine code to be executed */
120 void *sptr, long ssize); 122 void *arg, /* a single pointer passed to the coro */
123 void *sptr, /* start of stack area */
124 long ssize); /* size of stack area */
121 125
122/* 126/*
123 * The following prototype defines the coroutine switching function. It is 127 * The following prototype defines the coroutine switching function. It is
124 * usually implemented as a macro, so watch out. 128 * usually implemented as a macro, so watch out.
125 * 129 *
… …
160#define coro_transfer(p,n) swapcontext (&((p)->uc), &((n)->uc)) 164#define coro_transfer(p,n) swapcontext (&((p)->uc), &((n)->uc))
161 165
162#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX 166#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
163 167
164#if defined(CORO_LINUX) && !defined(_GNU_SOURCE) 168#if defined(CORO_LINUX) && !defined(_GNU_SOURCE)
165# define _GNU_SOURCE // for linux libc 169# define _GNU_SOURCE /* for linux libc */
166#endif 170#endif
167 171
168#include <setjmp.h> 172#include <setjmp.h>
169 173
170struct coro_context { 174struct coro_context {
171 jmp_buf env; 175 jmp_buf env;
172}; 176};
173 177
174#if CORO_LINUX 178#if CORO_LINUX || (_XOPEN_SOURCE >= 600)
175# define coro_transfer(p,n) do { if (!_setjmp ((p)->env)) _longjmp ((n)->env, 1); } while(0) 179# define coro_transfer(p,n) do { if (!_setjmp ((p)->env)) _longjmp ((n)->env, 1); } while (0)
176#else 180#else
177# define coro_transfer(p,n) do { if (!setjmp ((p)->env)) longjmp ((n)->env, 1); } while(0) 181# define coro_transfer(p,n) do { if (!setjmp ((p)->env)) longjmp ((n)->env, 1); } while (0)
178#endif 182#endif
179 183
180#endif 184#endif
181 185
182#endif 186#endif

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