1 /* thr_nt.c - wrapper around NT threads */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 1998-2012 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
19 #if defined( HAVE_NT_THREADS )
21 #define _WIN32_WINNT 0x0400
25 #include "ldap_pvt_thread.h" /* Get the thread interface */
26 #define LDAP_THREAD_IMPLEMENTATION
27 #include "ldap_thr_debug.h" /* May rename the symbols defined below */
29 typedef struct ldap_int_thread_s {
34 #ifndef NT_MAX_THREADS
35 #define NT_MAX_THREADS 1024
38 static ldap_int_thread_s tids[NT_MAX_THREADS];
42 /* mingw compiler very sensitive about getting prototypes right */
43 typedef unsigned __stdcall thrfunc_t(void *);
46 ldap_int_thread_initialize( void )
52 ldap_int_thread_destroy( void )
58 ldap_pvt_thread_create( ldap_pvt_thread_t * thread,
60 void *(*start_routine)( void *),
67 thd = (HANDLE) _beginthreadex(NULL, LDAP_PVT_THREAD_STACK_SIZE, (thrfunc_t *) start_routine,
71 *thread = (ldap_pvt_thread_t) tid;
72 tids[ntids].tid = tid;
73 tids[ntids].thd = thd;
81 ldap_pvt_thread_exit( void *retval )
87 ldap_pvt_thread_join( ldap_pvt_thread_t thread, void **thread_return )
92 for (i=0; i<ntids; i++) {
93 if ( tids[i].tid == thread )
96 if ( i > ntids ) return -1;
98 status = WaitForSingleObject( tids[i].thd, INFINITE );
99 for (; i<ntids; i++) {
103 return status == WAIT_FAILED ? -1 : 0;
107 ldap_pvt_thread_kill( ldap_pvt_thread_t thread, int signo )
113 ldap_pvt_thread_yield( void )
120 ldap_pvt_thread_cond_init( ldap_pvt_thread_cond_t *cond )
122 *cond = CreateEvent( NULL, FALSE, FALSE, NULL );
127 ldap_pvt_thread_cond_destroy( ldap_pvt_thread_cond_t *cv )
134 ldap_pvt_thread_cond_signal( ldap_pvt_thread_cond_t *cond )
141 ldap_pvt_thread_cond_wait( ldap_pvt_thread_cond_t *cond,
142 ldap_pvt_thread_mutex_t *mutex )
144 SignalObjectAndWait( *mutex, *cond, INFINITE, FALSE );
145 WaitForSingleObject( *mutex, INFINITE );
150 ldap_pvt_thread_cond_broadcast( ldap_pvt_thread_cond_t *cond )
152 while ( WaitForSingleObject( *cond, 0 ) == WAIT_TIMEOUT )
158 ldap_pvt_thread_mutex_init( ldap_pvt_thread_mutex_t *mutex )
160 *mutex = CreateMutex( NULL, 0, NULL );
165 ldap_pvt_thread_mutex_destroy( ldap_pvt_thread_mutex_t *mutex )
167 CloseHandle( *mutex );
172 ldap_pvt_thread_mutex_lock( ldap_pvt_thread_mutex_t *mutex )
175 status = WaitForSingleObject( *mutex, INFINITE );
176 return status == WAIT_FAILED ? -1 : 0;
180 ldap_pvt_thread_mutex_unlock( ldap_pvt_thread_mutex_t *mutex )
182 ReleaseMutex( *mutex );
187 ldap_pvt_thread_mutex_trylock( ldap_pvt_thread_mutex_t *mp )
190 status = WaitForSingleObject( *mp, 0 );
191 return status == WAIT_FAILED || status == WAIT_TIMEOUT
196 ldap_pvt_thread_self( void )
198 return GetCurrentThreadId();
202 ldap_pvt_thread_key_create( ldap_pvt_thread_key_t *keyp )
204 DWORD key = TlsAlloc();
205 if ( key != TLS_OUT_OF_INDEXES ) {
214 ldap_pvt_thread_key_destroy( ldap_pvt_thread_key_t key )
216 /* TlsFree returns 0 on failure */
217 return( TlsFree( key ) == 0 );
221 ldap_pvt_thread_key_setdata( ldap_pvt_thread_key_t key, void *data )
223 return ( TlsSetValue( key, data ) == 0 );
227 ldap_pvt_thread_key_getdata( ldap_pvt_thread_key_t key, void **data )
229 void *ptr = TlsGetValue( key );
231 return( ptr ? GetLastError() : 0 );