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Comparing libcoro/coro.h (file contents):
Revision 1.9 by root, Thu Mar 3 17:20:31 2005 UTC vs.
Revision 1.13 by root, Sun Feb 19 22:30:58 2006 UTC

… …
36 */ 36 */
37 37
38#ifndef CORO_H 38#ifndef CORO_H
39#define CORO_H 39#define CORO_H
40 40
41#define CORO_VERSION 1 41#define CORO_VERSION 2
42
43/*
44 * Changes since API version 1:
45 * replaced bogus -DCORO_LOOSE with gramatically more correct -DCORO_LOSER
46 */
42 47
43/* 48/*
44 * This library consists of only three files 49 * This library consists of only three files
45 * coro.h, coro.c and LICENSE (and optionally README) 50 * coro.h, coro.c and LICENSE (and optionally README)
46 * 51 *
… …
50 * 55 *
51 * -DCORO_UCONTEXT 56 * -DCORO_UCONTEXT
52 * 57 *
53 * This flavour uses SUSv2's get/set/swap/makecontext functions that 58 * This flavour uses SUSv2's get/set/swap/makecontext functions that
54 * unfortunately only newer unices support. 59 * unfortunately only newer unices support.
55 * Use this for GNU/Linux + glibc-2.2.3. 60 * Use this for GNU/Linux + glibc-2.2.3 and possibly higher.
56 * 61 *
57 * -DCORO_SJLJ 62 * -DCORO_SJLJ
58 * 63 *
59 * This flavour uses SUSv'2 setjmp/longjmp and sigaltstack functions to 64 * This flavour uses SUSv2's setjmp/longjmp and sigaltstack functions to
60 * do it's job. Coroutine creation is much slower than UCONTEXT, but 65 * do it's job. Coroutine creation is much slower than UCONTEXT, but
61 * context switching is often a bit cheaper. It should work on almost 66 * context switching is often a bit cheaper. It should work on almost
62 * all unices. Use this for GNU/Linux + glibc-2.2. glibc-2.1 and below 67 * all unices. Use this for GNU/Linux + glibc-2.2. glibc-2.1 and below
63 * do not work with any sane model (neither sigaltstack nor context 68 * do not work with any sane model (neither sigaltstack nor context
64 * functions are implemented) 69 * functions are implemented)
65 * 70 *
66 * -DCORO_LINUX 71 * -DCORO_LINUX
67 * 72 *
68 * Old GNU/Linux systems (<= glibc-2.1) work with this implementation 73 * Old GNU/Linux systems (<= glibc-2.1) work with this implementation
69 * (very fast). 74 * (it is very fast and therefore recommended over other methods).
70 * 75 *
71 * -DCORO_LOOSE 76 * -DCORO_LOSER
72 * 77 *
73 * Microsoft's highly proprietary platform doesn't support sigaltstack, and 78 * Microsoft's highly proprietary platform doesn't support sigaltstack, and
74 * this automatically selects a suitable workaround for this platform. 79 * this automatically selects a suitable workaround for this platform.
75 * (untested) 80 * (untested)
76 * 81 *
77 * -DCORO_IRIX 82 * -DCORO_IRIX
78 * 83 *
79 * SGI's version of Microsoft's NT ;) 84 * SGI's version of Microsoft's NT ;)
80 * 85 *
81 * If you define neither of these symbols, coro.h will try to autodetect 86 * If you define neither of these symbols, coro.h will try to autodetect
82 * the model. This currently works for CORO_LOOSE only. For the other 87 * the model. This currently works for CORO_LOSER only. For the other
83 * alternatives you should check (e.g. using autoconf) and define the 88 * alternatives you should check (e.g. using autoconf) and define the
84 * following symbols: HAVE_UCONTEXT_H / HAVE_SETJMP_H / HAVE_SIGALTSTACK. 89 * following symbols: HAVE_UCONTEXT_H / HAVE_SETJMP_H / HAVE_SIGALTSTACK.
85 */ 90 */
86 91
87/* 92/*
… …
96 */ 101 */
97typedef struct coro_context coro_context; 102typedef struct coro_context coro_context;
98 103
99/* 104/*
100 * This function creates a new coroutine. Apart from a pointer to an 105 * This function creates a new coroutine. Apart from a pointer to an
101 * uninitialized coro_context, it expects a pointer to the entry function 106 * uninitialised coro_context, it expects a pointer to the entry function
102 * and the single pointer value that is given to it as argument. 107 * and the single pointer value that is given to it as argument.
103 * 108 *
104 * Allocating/deallocating the stack is your own responsibility, so there is 109 * Allocating/deallocating the stack is your own responsibility, so there is
105 * no coro_destroy function. 110 * no coro_destroy function.
106 */ 111 */
… …
119 * That was it. No other user-visible functions are implemented here. 124 * That was it. No other user-visible functions are implemented here.
120 */ 125 */
121 126
122/*****************************************************************************/ 127/*****************************************************************************/
123 128
124#if !defined(CORO_LOOSE) && !defined(CORO_UCONTEXT) \ 129#if !defined(CORO_LOSER) && !defined(CORO_UCONTEXT) \
125 && !defined(CORO_SJLJ) && !defined(CORO_LINUX) \ 130 && !defined(CORO_SJLJ) && !defined(CORO_LINUX) \
126 && !defined(CORO_IRIX) 131 && !defined(CORO_IRIX)
127# if defined(WINDOWS) 132# if defined(WINDOWS)
128# define CORO_LOOSE 1 /* you don't win with windoze */ 133# define CORO_LOSER 1 /* you don't win with windoze */
129# elif defined(__linux) && defined(__x86) 134# elif defined(__linux) && defined(__x86)
130# elif defined(HAVE_UCONTEXT_H) 135# elif defined(HAVE_UCONTEXT_H)
131# define CORO_UCONTEXT 1 136# define CORO_UCONTEXT 1
132# elif defined(HAVE_SETJMP_H) && defined(HAVE_SIGALTSTACK) 137# elif defined(HAVE_SETJMP_H) && defined(HAVE_SIGALTSTACK)
133# define CORO_SJLJ 1 138# define CORO_SJLJ 1
… …
146 ucontext_t uc; 151 ucontext_t uc;
147}; 152};
148 153
149#define coro_transfer(p,n) swapcontext (&((p)->uc), &((n)->uc)) 154#define coro_transfer(p,n) swapcontext (&((p)->uc), &((n)->uc))
150 155
151#elif CORO_SJLJ || CORO_LOOSE || CORO_LINUX || CORO_IRIX 156#elif CORO_SJLJ || CORO_LOSER || CORO_LINUX || CORO_IRIX
152 157
153#ifdef CORO_LINUX 158#if defined(CORO_LINUX) && !defined(_GNU_SOURCE)
154# define _GNU_SOURCE // for linux libc 159# define _GNU_SOURCE // for linux libc
155#endif 160#endif
156 161
157#include <setjmp.h> 162#include <setjmp.h>
158 163

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