Import Fix ITS#1865, (ITS#1764?) cond_broadcast behavior was broken

libraries/libldap_r/thr_nt.c

+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2002 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"
+
+/* mingw compiler very sensitive about getting prototypes right */
+typedef unsigned __stdcall thrfunc_t(void *);
+
+int
+ldap_int_thread_initialize( void )
+{
+	return 0;
+}
+
+int
+ldap_int_thread_destroy( void )
+{
+	return 0;
+}
+
+int 
+ldap_pvt_thread_create( ldap_pvt_thread_t * thread, 
+	int detach,
+	void *(*start_routine)( void *),
+	void *arg)
+{
+	unsigned tid;
+	HANDLE thd;
+
+	thd = (HANDLE) _beginthreadex(NULL, 0, (thrfunc_t *) start_routine,
+				      arg, 0, &tid);
+
+	*thread = (ldap_pvt_thread_t) thd;
+
+	return thd == NULL ? -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 );
+	return status == WAIT_FAILED ? -1 : 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 )
+{
+	SignalObjectAndWait( *mutex, *cond, INFINITE, FALSE );
+	WaitForSingleObject( *mutex, INFINITE );
+	return( 0 );
+}
+
+int
+ldap_pvt_thread_cond_broadcast( ldap_pvt_thread_cond_t *cond )
+{
+	while ( WaitForSingleObject( *cond, 0 ) == WAIT_TIMEOUT )
+		SetEvent( *cond );
+	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 )
+{
+	DWORD status;
+	status = WaitForSingleObject( *mutex, INFINITE );
+	return status == WAIT_FAILED ? -1 : 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 );
+	return status == WAIT_FAILED || status == WAIT_TIMEOUT
+		? -1 : 0;
+}
+
+#endif