Use Sleep to yield

libraries/libldap_r/thr_nt.c

+/*
+ * Copyright 1998,1999 The OpenLDAP Foundation, Redwood City, California, USA
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted only
+ * as authorized by the OpenLDAP Public License.  A copy of this
+ * license is available at http://www.OpenLDAP.org/license.html or
+ * in file LICENSE in the top-level directory of the distribution.
+ */
+
+/* thr_nt.c - wrapper around NT threads */
+
+#include "portable.h"
+
+#if defined( HAVE_NT_THREADS )
+
+#include "ldap_pvt_thread.h"
+
+int
+ldap_pvt_thread_initialize( void )
+{
+	return 0;
+}
+
+int
+ldap_pvt_thread_destroy( void )
+{
+	return 0;
+}
+
+int 
+ldap_pvt_thread_create( ldap_pvt_thread_t * thread, 
+	int detach,
+	void *(*start_routine)( void *),
+	void *arg)
+{
+	*thread = (ldap_pvt_thread_t)_beginthread( (void *) start_routine, 
+						0, arg );
+	 return ( (unsigned long)*thread == -1 ? -1 : 0 );
+}
+	
+void 
+ldap_pvt_thread_exit( void *retval )
+{
+	_endthread( );
+}
+
+int 
+ldap_pvt_thread_join( ldap_pvt_thread_t thread, void **thread_return )
+{
+	DWORD status;
+	status = WaitForSingleObject( (HANDLE) thread, INFINITE );
+	if (status == WAIT_FAILED) {
+		return -1;
+	}
+	return 0;
+}
+
+int 
+ldap_pvt_thread_kill( ldap_pvt_thread_t thread, int signo )
+{
+	return 0;
+}
+
+int 
+ldap_pvt_thread_yield( void )
+{
+	Sleep( 0 );
+	return 0;
+}
+
+int 
+ldap_pvt_thread_cond_init( ldap_pvt_thread_cond_t *cond )
+{
+	*cond = CreateEvent( NULL, FALSE, FALSE, NULL );
+	return( 0 );
+}
+
+int
+ldap_pvt_thread_cond_destroy( ldap_pvt_thread_cond_t *cv )
+{
+	CloseHandle( *cv );
+	return( 0 );
+}
+
+int 
+ldap_pvt_thread_cond_signal( ldap_pvt_thread_cond_t *cond )
+{
+	SetEvent( *cond );
+	return( 0 );
+}
+
+int 
+ldap_pvt_thread_cond_wait( ldap_pvt_thread_cond_t *cond, 
+			  ldap_pvt_thread_mutex_t *mutex )
+{
+	ReleaseMutex( *mutex );
+	WaitForSingleObject( *cond, INFINITE );
+	WaitForSingleObject( *mutex, INFINITE );
+	return( 0 );
+}
+
+int
+ldap_pvt_thread_cond_broadcast( ldap_pvt_thread_cond_t *cv )
+{
+	SetEvent( *cv );
+	return( 0 );
+}
+
+int 
+ldap_pvt_thread_mutex_init( ldap_pvt_thread_mutex_t *mutex )
+{
+	*mutex = CreateMutex( NULL, 0, NULL );
+	return ( 0 );
+}
+
+int 
+ldap_pvt_thread_mutex_destroy( ldap_pvt_thread_mutex_t *mutex )
+{
+	CloseHandle( *mutex );
+	return ( 0 );	
+}
+
+int 
+ldap_pvt_thread_mutex_lock( ldap_pvt_thread_mutex_t *mutex )
+{
+	WaitForSingleObject( *mutex, INFINITE );
+	return ( 0 );
+}
+
+int 
+ldap_pvt_thread_mutex_unlock( ldap_pvt_thread_mutex_t *mutex )
+{
+	ReleaseMutex( *mutex );
+	return ( 0 );
+}
+
+int
+ldap_pvt_thread_mutex_trylock( ldap_pvt_thread_mutex_t *mp )
+{
+	DWORD status;
+
+	status = WaitForSingleObject( *mp, 0 );
+	if ( (status == WAIT_FAILED) || (status == WAIT_TIMEOUT) )
+		return 0;
+	else
+		return 1;
+}
+
+#endif