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Comparing libcoro/coro.h (file contents):
Revision 1.14 by root, Thu Oct 26 05:20:47 2006 UTC vs.
Revision 1.21 by root, Fri Apr 27 19:35:28 2007 UTC

… …
36 */ 36 */
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.
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.
41 */ 44 */
42 45
43#ifndef CORO_H 46#ifndef CORO_H
44#define CORO_H 47#define CORO_H
45 48
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98 * 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.
99 */ 102 */
100typedef void (*coro_func)(void *); 103typedef void (*coro_func)(void *);
101 104
102/* 105/*
103 * 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
104 * 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,
105 * implement your own switching primitive. 108 * implement your own switching primitive if you need that.
106 */ 109 */
107typedef struct coro_context coro_context; 110typedef struct coro_context coro_context;
108 111
109/* 112/*
110 * 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
… …
112 * 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.
113 * 116 *
114 * Allocating/deallocating the stack is your own responsibility, so there is 117 * Allocating/deallocating the stack is your own responsibility, so there is
115 * no coro_destroy function. 118 * no coro_destroy function.
116 */ 119 */
117void coro_create (coro_context *ctx, 120void coro_create (coro_context *ctx, /* an uninitialised coro_context */
118 coro_func coro, void *arg, 121 coro_func coro, /* the coroutine code to be executed */
119 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 */
120 125
121/* 126/*
122 * The following prototype defines the coroutine switching function. It is 127 * The following prototype defines the coroutine switching function. It is
123 * usually implemented as a macro, so watch out. 128 * usually implemented as a macro, so watch out.
124 * 129 *
… …
159#define coro_transfer(p,n) swapcontext (&((p)->uc), &((n)->uc)) 164#define coro_transfer(p,n) swapcontext (&((p)->uc), &((n)->uc))
160 165
161#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX 166#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
162 167
163#if defined(CORO_LINUX) && !defined(_GNU_SOURCE) 168#if defined(CORO_LINUX) && !defined(_GNU_SOURCE)
164# define _GNU_SOURCE // for linux libc 169# define _GNU_SOURCE /* for linux libc */
165#endif 170#endif
166 171
167#include <setjmp.h> 172#include <setjmp.h>
168 173
169struct coro_context { 174struct coro_context {
170 jmp_buf env; 175 jmp_buf env;
171}; 176};
172 177
178#if CORO_LINUX || (_XOPEN_SOURCE >= 600)
173#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)
180#else
181# define coro_transfer(p,n) do { if (!setjmp ((p)->env)) longjmp ((n)->env, 1); } while (0)
182#endif
174 183
175#endif 184#endif
176 185
177#endif 186#endif
178 187

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