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Comparing libcoro/coro.h (file contents):
Revision 1.34 by root, Sat Nov 8 04:52:01 2008 UTC vs.
Revision 1.39 by root, Sun Nov 16 00:55:41 2008 UTC

… …
63 * speed up CORO_PTHREAD. Do no longer leak threads either. 63 * speed up CORO_PTHREAD. Do no longer leak threads either.
64 * coro_create now allows one to create source coro_contexts. 64 * coro_create now allows one to create source coro_contexts.
65 * do not rely on makecontext passing a void * correctly. 65 * do not rely on makecontext passing a void * correctly.
66 * try harder to get _setjmp/_longjmp. 66 * try harder to get _setjmp/_longjmp.
67 * major code cleanup/restructuring. 67 * major code cleanup/restructuring.
68 * 2008-11-10 the .cfi hacks are no longer needed.
69 * 2008-11-16 work around a freebsd pthread bug.
68 */ 70 */
69 71
70#ifndef CORO_H 72#ifndef CORO_H
71#define CORO_H 73#define CORO_H
72 74
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114 * SGI's version of Microsoft's NT ;) 116 * SGI's version of Microsoft's NT ;)
115 * 117 *
116 * -DCORO_ASM 118 * -DCORO_ASM
117 * 119 *
118 * Handcoded assembly, known to work only on a few architectures/ABI: 120 * Handcoded assembly, known to work only on a few architectures/ABI:
119 * ELF Linux x86 && amd64 when gcc is used and optimisation is turned on. 121 * GCC + x86/IA32 and amd64/x86_64 + GNU/Linux and a few BSDs.
120 * 122 *
121 * -DCORO_PTHREAD 123 * -DCORO_PTHREAD
122 * 124 *
123 * Use the pthread API. You have to provide <pthread.h> and -lpthread. 125 * Use the pthread API. You have to provide <pthread.h> and -lpthread.
126 * This is likely the slowest backend, and it also does not support fork(),
127 * so avoid it at all costs.
124 * 128 *
125 * If you define neither of these symbols, coro.h will try to autodetect 129 * If you define neither of these symbols, coro.h will try to autodetect
126 * the model. This currently works for CORO_LOSER only. For the other 130 * the model. This currently works for CORO_LOSER only. For the other
127 * alternatives you should check (e.g. using autoconf) and define the 131 * alternatives you should check (e.g. using autoconf) and define the
128 * following symbols: HAVE_UCONTEXT_H / HAVE_SETJMP_H / HAVE_SIGALTSTACK. 132 * following symbols: HAVE_UCONTEXT_H / HAVE_SETJMP_H / HAVE_SIGALTSTACK.
… …
146 * and the single pointer value that is given to it as argument. 150 * and the single pointer value that is given to it as argument.
147 * 151 *
148 * Allocating/deallocating the stack is your own responsibility. 152 * Allocating/deallocating the stack is your own responsibility.
149 * 153 *
150 * As a special case, if coro, arg, sptr and ssize are all zero, 154 * As a special case, if coro, arg, sptr and ssize are all zero,
151 * then an "empty" coro_contetx will be created that is suitable 155 * then an "empty" coro_context will be created that is suitable
152 * as an initial source for coro_transfer. 156 * as an initial source for coro_transfer.
153 * 157 *
154 * This function is not reentrant, but putting a mutex around it 158 * This function is not reentrant, but putting a mutex around it
155 * will work. 159 * will work.
156 */ 160 */
… …
171#endif 175#endif
172 176
173/* 177/*
174 * The following prototype defines the coroutine destroy function. It is 178 * The following prototype defines the coroutine destroy function. It is
175 * usually implemented as a macro, so watch out. It also serves 179 * usually implemented as a macro, so watch out. It also serves
176 * no purpose unless you want to use the CORO_PTHREAD backend. 180 * no purpose unless you want to use the CORO_PTHREAD backend,
181 * where it is used to clean up the thread. You are responsible
182 * for freeing the stack and the context itself.
177 * 183 *
178 * This function is thread-safe and reentrant. 184 * This function is thread-safe and reentrant.
179 */ 185 */
180#if 0 186#if 0
181void coro_destroy (coro_context *ctx); 187void coro_destroy (coro_context *ctx);
… …
225 231
226# if !CORO_LOSER 232# if !CORO_LOSER
227# include <unistd.h> 233# include <unistd.h>
228# endif 234# endif
229 235
236/* solaris is hopelessly borked, it expands _XOPEN_UNIX to nothing */
237# if __sun
238# undef _XOPEN_UNIX
239# define _XOPEN_UNIX 1
240# endif
241
230# include <setjmp.h> 242# include <setjmp.h>
231 243
232struct coro_context { 244struct coro_context {
245#if _XOPEN_UNIX > 0 || CORO_LOSER
233 jmp_buf env; 246 jmp_buf env;
247#else
248 sigjmp_buf env;
249#endif
234}; 250};
235 251
236# if _XOPEN_UNIX > 0 252# if _XOPEN_UNIX > 0
237# define coro_transfer(p,n) do { if (! _setjmp ((p)->env )) _longjmp ((n)->env, 1); } while (0) 253# define coro_transfer(p,n) do { if (! _setjmp ((p)->env )) _longjmp ((n)->env, 1); } while (0)
238# elif CORO_LOSER 254# elif CORO_LOSER

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