X-Git-Url: http://erislabs.net/gitweb/?a=blobdiff_plain;f=lib%2Fglthread%2Fcond.h;h=d866b6e6772c8907df1213dcd5362cbc8ad8d241;hb=3c65a6806b208533f681855712e0febf4bb0ed67;hp=5939004cc4fc1300c6b5b2dbab67923737df1432;hpb=9036fbd9f324256fee4b0f2259bdc8bb5a5eac04;p=gnulib.git diff --git a/lib/glthread/cond.h b/lib/glthread/cond.h index 5939004cc..d866b6e67 100644 --- a/lib/glthread/cond.h +++ b/lib/glthread/cond.h @@ -1,5 +1,5 @@ /* Condition variables for multithreading. - Copyright (C) 2005-2008 Free Software Foundation, Inc. + Copyright (C) 2005-2010 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -52,6 +52,7 @@ #include #include #include +#include #include "glthread/lock.h" @@ -122,9 +123,9 @@ extern int glthread_in_use (void); typedef pthread_cond_t gl_cond_t; # define gl_cond_define(STORAGECLASS, NAME) \ - STORAGECLASS pthread_cond_t NAME; + STORAGECLASS gl_cond_t NAME; # define gl_cond_define_initialized(STORAGECLASS, NAME) \ - STORAGECLASS pthread_cond_t NAME = gl_cond_initializer; + STORAGECLASS gl_cond_t NAME = gl_cond_initializer; # define gl_cond_initializer \ PTHREAD_COND_INITIALIZER # define glthread_cond_init(COND) \ @@ -181,9 +182,9 @@ extern "C" { typedef pth_cond_t gl_cond_t; # define gl_cond_define(STORAGECLASS, NAME) \ - STORAGECLASS pth_cond_t NAME; + STORAGECLASS gl_cond_t NAME; # define gl_cond_define_initialized(STORAGECLASS, NAME) \ - STORAGECLASS pth_cond_t NAME = gl_cond_initializer; + STORAGECLASS gl_cond_t NAME = gl_cond_initializer; # define gl_cond_initializer \ PTH_COND_INIT # define glthread_cond_init(COND) \ @@ -239,11 +240,11 @@ extern "C" { /* -------------------------- gl_cond_t datatype -------------------------- */ -typedef pthread_cond_t gl_cond_t; +typedef cond_t gl_cond_t; # define gl_cond_define(STORAGECLASS, NAME) \ - STORAGECLASS cond_t NAME; + STORAGECLASS gl_cond_t NAME; # define gl_cond_define_initialized(STORAGECLASS, NAME) \ - STORAGECLASS cond_t NAME = gl_cond_initializer; + STORAGECLASS gl_cond_t NAME = gl_cond_initializer; # define gl_cond_initializer \ DEFAULTCV # define glthread_cond_init(COND) \ @@ -268,7 +269,67 @@ extern int glthread_cond_timedwait_multithreaded (gl_cond_t *cond, gl_lock_t *lo /* ========================================================================= */ -#if !(USE_POSIX_THREADS || USE_PTH_THREADS || USE_SOLARIS_THREADS) +#if USE_WIN32_THREADS + +# include + +# ifdef __cplusplus +extern "C" { +# endif + +/* -------------------------- gl_cond_t datatype -------------------------- */ + +struct gl_waitqueue_link +{ + struct gl_waitqueue_link *wql_next; + struct gl_waitqueue_link *wql_prev; +}; +typedef struct + { + struct gl_waitqueue_link wq_list; /* circular list of waiting threads */ + } + gl_linked_waitqueue_t; +typedef struct + { + gl_spinlock_t guard; /* protects the initialization */ + CRITICAL_SECTION lock; /* protects the remaining fields */ + gl_linked_waitqueue_t waiters; /* waiting threads */ + } + gl_cond_t; +# define gl_cond_define(STORAGECLASS, NAME) \ + STORAGECLASS gl_cond_t NAME; +# define gl_cond_define_initialized(STORAGECLASS, NAME) \ + STORAGECLASS gl_cond_t NAME = gl_cond_initializer; +# define gl_cond_initializer \ + { { 0, -1 } } +# define glthread_cond_init(COND) \ + glthread_cond_init_func (COND) +# define glthread_cond_wait(COND, LOCK) \ + glthread_cond_wait_func (COND, LOCK) +# define glthread_cond_timedwait(COND, LOCK, ABSTIME) \ + glthread_cond_timedwait_func (COND, LOCK, ABSTIME) +# define glthread_cond_signal(COND) \ + glthread_cond_signal_func (COND) +# define glthread_cond_broadcast(COND) \ + glthread_cond_broadcast_func (COND) +# define glthread_cond_destroy(COND) \ + glthread_cond_destroy_func (COND) +extern int glthread_cond_init_func (gl_cond_t *cond); +extern int glthread_cond_wait_func (gl_cond_t *cond, gl_lock_t *lock); +extern int glthread_cond_timedwait_func (gl_cond_t *cond, gl_lock_t *lock, struct timespec *abstime); +extern int glthread_cond_signal_func (gl_cond_t *cond); +extern int glthread_cond_broadcast_func (gl_cond_t *cond); +extern int glthread_cond_destroy_func (gl_cond_t *cond); + +# ifdef __cplusplus +} +# endif + +#endif + +/* ========================================================================= */ + +#if !(USE_POSIX_THREADS || USE_PTH_THREADS || USE_SOLARIS_THREADS || USE_WIN32_THREADS) /* Provide dummy implementation if threads are not supported. */