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Comparing libcoro/coro.h (file contents):
Revision 1.32 by root, Fri Nov 7 20:12:26 2008 UTC vs.
Revision 1.38 by root, Fri Nov 14 05:27:08 2008 UTC

… …
60 * 2008-11-05 Hopefully fix misaligned stacks with CORO_ASM/SETJMP. 60 * 2008-11-05 Hopefully fix misaligned stacks with CORO_ASM/SETJMP.
61 * 2008-11-07 rbp wasn't saved in CORO_ASM on x86_64. 61 * 2008-11-07 rbp wasn't saved in CORO_ASM on x86_64.
62 * introduce coro_destroy, which is a nop except for pthreads. 62 * introduce coro_destroy, which is a nop except for pthreads.
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.
66 * try harder to get _setjmp/_longjmp.
67 * major code cleanup/restructuring.
68 * 2008-11-10 the .cfi hacks are no longer needed.
65 */ 69 */
66 70
67#ifndef CORO_H 71#ifndef CORO_H
68#define CORO_H 72#define CORO_H
69 73
… …
143 * and the single pointer value that is given to it as argument. 147 * and the single pointer value that is given to it as argument.
144 * 148 *
145 * Allocating/deallocating the stack is your own responsibility. 149 * Allocating/deallocating the stack is your own responsibility.
146 * 150 *
147 * As a special case, if coro, arg, sptr and ssize are all zero, 151 * As a special case, if coro, arg, sptr and ssize are all zero,
148 * then an "empty" coro_contetx will be created that is suitable 152 * then an "empty" coro_context will be created that is suitable
149 * as an initial source for coro_transfer. 153 * as an initial source for coro_transfer.
150 * 154 *
151 * This function is not reentrant, but putting a mutex around it 155 * This function is not reentrant, but putting a mutex around it
152 * will work. 156 * will work.
153 */ 157 */
… …
168#endif 172#endif
169 173
170/* 174/*
171 * The following prototype defines the coroutine destroy function. It is 175 * The following prototype defines the coroutine destroy function. It is
172 * usually implemented as a macro, so watch out. It also serves 176 * usually implemented as a macro, so watch out. It also serves
173 * no purpose unless you want to use the CORO_PTHREAD backend. 177 * no purpose unless you want to use the CORO_PTHREAD backend,
178 * where it is used to clean up the thread. You are responsible
179 * for freeing the stack and the context itself.
174 * 180 *
175 * This function is thread-safe and reentrant. 181 * This function is thread-safe and reentrant.
176 */ 182 */
177#if 0 183#if 0
178void coro_destroy (coro_context *ctx); 184void coro_destroy (coro_context *ctx);
… …
218 224
219# if defined(CORO_LINUX) && !defined(_GNU_SOURCE) 225# if defined(CORO_LINUX) && !defined(_GNU_SOURCE)
220# define _GNU_SOURCE /* for linux libc */ 226# define _GNU_SOURCE /* for linux libc */
221# endif 227# endif
222 228
229# if !CORO_LOSER
230# include <unistd.h>
231# endif
232
233/* solaris is hopelessly borked, it expands _XOPEN_UNIX to nothing */
234# if __sun
235# undef _XOPEN_UNIX
236# define _XOPEN_UNIX 1
237# endif
238
223# include <setjmp.h> 239# include <setjmp.h>
224 240
225struct coro_context { 241struct coro_context {
242#if _XOPEN_UNIX > 0 || CORO_LOSER
226 jmp_buf env; 243 jmp_buf env;
244#else
245 sigjmp_buf env;
246#endif
227}; 247};
228 248
229# if CORO_LINUX || (_XOPEN_SOURCE >= 600) 249# if _XOPEN_UNIX > 0
230# define coro_transfer(p,n) do { if (!_setjmp ((p)->env)) _longjmp ((n)->env, 1); } while (0) 250# define coro_transfer(p,n) do { if (! _setjmp ((p)->env )) _longjmp ((n)->env, 1); } while (0)
251# elif CORO_LOSER
252# define coro_transfer(p,n) do { if (! setjmp ((p)->env )) longjmp ((n)->env, 1); } while (0)
231# else 253# else
232# define coro_transfer(p,n) do { if (!setjmp ((p)->env)) longjmp ((n)->env, 1); } while (0) 254# define coro_transfer(p,n) do { if (!sigsetjmp ((p)->env, 0)) siglongjmp ((n)->env, 1); } while (0)
233# endif 255# endif
234 256
235# define coro_destroy(ctx) (void *)(ctx) 257# define coro_destroy(ctx) (void *)(ctx)
236 258
237#elif CORO_ASM 259#elif CORO_ASM
238 260
239struct coro_context { 261struct coro_context {
240 volatile void **sp; /* must be at offset 0 */ 262 void **sp; /* must be at offset 0 */
241}; 263};
242 264
243void __attribute__ ((__noinline__, __regparm__(2))) 265void __attribute__ ((__noinline__, __regparm__(2)))
244coro_transfer (coro_context *prev, coro_context *next); 266coro_transfer (coro_context *prev, coro_context *next);
245 267

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