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Comparing libcoro/coro.h (file contents):
Revision 1.15 by root, Thu Oct 26 07:27:50 2006 UTC vs.
Revision 1.20 by root, Fri Apr 27 19:26:18 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.
41 */ 43 */
42 44
43#ifndef CORO_H 45#ifndef CORO_H
44#define CORO_H 46#define CORO_H
45 47
… …
98 * This is the type for the initialization function of a new coroutine. 100 * This is the type for the initialization function of a new coroutine.
99 */ 101 */
100typedef void (*coro_func)(void *); 102typedef void (*coro_func)(void *);
101 103
102/* 104/*
103 * A coroutine state is saved in the following structure. Treat it as a 105 * 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, 106 * opaque type. errno and sigmask might be saved, but don't rely on it,
105 * implement your own switching primitive if you need it. 107 * implement your own switching primitive if you need that.
106 */ 108 */
107typedef struct coro_context coro_context; 109typedef struct coro_context coro_context;
108 110
109/* 111/*
110 * This function creates a new coroutine. Apart from a pointer to an 112 * 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. 114 * and the single pointer value that is given to it as argument.
113 * 115 *
114 * Allocating/deallocating the stack is your own responsibility, so there is 116 * Allocating/deallocating the stack is your own responsibility, so there is
115 * no coro_destroy function. 117 * no coro_destroy function.
116 */ 118 */
117void coro_create (coro_context *ctx, 119void coro_create (coro_context *ctx, /* an uninitialised coro_context */
118 coro_func coro, void *arg, 120 coro_func coro, /* the coroutine code to be executed */
119 void *sptr, long ssize); 121 void *arg, /* a single pointer passed to the coro */
122 void *sptr, /* start of stack area */
123 long ssize); /* size of stack area */
120 124
121/* 125/*
122 * The following prototype defines the coroutine switching function. It is 126 * The following prototype defines the coroutine switching function. It is
123 * usually implemented as a macro, so watch out. 127 * usually implemented as a macro, so watch out.
124 * 128 *
… …
159#define coro_transfer(p,n) swapcontext (&((p)->uc), &((n)->uc)) 163#define coro_transfer(p,n) swapcontext (&((p)->uc), &((n)->uc))
160 164
161#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX 165#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
162 166
163#if defined(CORO_LINUX) && !defined(_GNU_SOURCE) 167#if defined(CORO_LINUX) && !defined(_GNU_SOURCE)
164# define _GNU_SOURCE // for linux libc 168# define _GNU_SOURCE /* for linux libc */
165#endif 169#endif
166 170
167#include <setjmp.h> 171#include <setjmp.h>
168 172
169struct coro_context { 173struct coro_context {
170 jmp_buf env; 174 jmp_buf env;
171}; 175};
172 176
177#if CORO_LINUX
173#define coro_transfer(p,n) do { if (!setjmp ((p)->env)) longjmp ((n)->env, 1); } while(0) 178# define coro_transfer(p,n) do { if (!_setjmp ((p)->env)) _longjmp ((n)->env, 1); } while (0)
179#else
180# define coro_transfer(p,n) do { if (!setjmp ((p)->env)) longjmp ((n)->env, 1); } while (0)
181#endif
174 182
175#endif 183#endif
176 184
177#endif 185#endif
178 186

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