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Comparing libcoro/coro.h (file contents):
Revision 1.18 by root, Sun Nov 26 03:19:06 2006 UTC vs.
Revision 1.20 by root, Fri Apr 27 19:26:18 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.
42 */ 43 */
43 44
44#ifndef CORO_H 45#ifndef CORO_H
45#define CORO_H 46#define CORO_H
46 47
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99 * 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.
100 */ 101 */
101typedef void (*coro_func)(void *); 102typedef void (*coro_func)(void *);
102 103
103/* 104/*
104 * 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
105 * 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,
106 * implement your own switching primitive if you need it. 107 * implement your own switching primitive if you need that.
107 */ 108 */
108typedef struct coro_context coro_context; 109typedef struct coro_context coro_context;
109 110
110/* 111/*
111 * 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
… …
113 * 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.
114 * 115 *
115 * Allocating/deallocating the stack is your own responsibility, so there is 116 * Allocating/deallocating the stack is your own responsibility, so there is
116 * no coro_destroy function. 117 * no coro_destroy function.
117 */ 118 */
118void coro_create (coro_context *ctx, 119void coro_create (coro_context *ctx, /* an uninitialised coro_context */
119 coro_func coro, void *arg, 120 coro_func coro, /* the coroutine code to be executed */
120 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 */
121 124
122/* 125/*
123 * The following prototype defines the coroutine switching function. It is 126 * The following prototype defines the coroutine switching function. It is
124 * usually implemented as a macro, so watch out. 127 * usually implemented as a macro, so watch out.
125 * 128 *
… …
160#define coro_transfer(p,n) swapcontext (&((p)->uc), &((n)->uc)) 163#define coro_transfer(p,n) swapcontext (&((p)->uc), &((n)->uc))
161 164
162#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX 165#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
163 166
164#if defined(CORO_LINUX) && !defined(_GNU_SOURCE) 167#if defined(CORO_LINUX) && !defined(_GNU_SOURCE)
165# define _GNU_SOURCE // for linux libc 168# define _GNU_SOURCE /* for linux libc */
166#endif 169#endif
167 170
168#include <setjmp.h> 171#include <setjmp.h>
169 172
170struct coro_context { 173struct coro_context {
171 jmp_buf env; 174 jmp_buf env;
172}; 175};
173 176
174#if CORO_LINUX 177#if CORO_LINUX
175# 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)
176#else 179#else
177# define coro_transfer(p,n) do { if (!setjmp ((p)->env)) longjmp ((n)->env, 1); } while(0) 180# define coro_transfer(p,n) do { if (!setjmp ((p)->env)) longjmp ((n)->env, 1); } while (0)
178#endif 181#endif
179 182
180#endif 183#endif
181 184
182#endif 185#endif

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