Adding upstream version 2.5.13+dfsg.upstream/2.5.13+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 411 insertions, 0 deletions

diff --git a/libraries/libldap/thr_posix.c b/libraries/libldap/thr_posix.c
new file mode 100644
index 0000000..004dc0b
--- /dev/null
+++ b/libraries/libldap/thr_posix.c
@@ -0,0 +1,411 @@
+/* thr_posix.c - wrapper around posix and posixish thread implementations.  */
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
+ *
+ * Copyright 1998-2022 The OpenLDAP Foundation.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
+ *
+ * A copy of this license is available in file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+
+
+#include "portable.h"
+
+#if defined( HAVE_PTHREADS )
+
+#ifdef __GLIBC__
+#undef _FEATURES_H
+#define _XOPEN_SOURCE 500		/* For pthread_setconcurrency() on glibc */
+#endif
+
+#include <ac/errno.h>
+
+#ifdef REPLACE_BROKEN_YIELD
+#ifndef HAVE_NANOSLEEP
+#include <ac/socket.h>
+#endif
+#include <ac/time.h>
+#endif
+
+#include "ldap_pvt_thread.h" /* Get the thread interface */
+#define LDAP_THREAD_IMPLEMENTATION
+#define LDAP_THREAD_RDWR_IMPLEMENTATION
+#include "ldap_thr_debug.h"	 /* May rename the symbols defined below */
+#include <signal.h>			 /* For pthread_kill() */
+
+extern int ldap_int_stackguard;
+
+#if HAVE_PTHREADS < 6
+#  define LDAP_INT_THREAD_ATTR_DEFAULT		pthread_attr_default
+#  define LDAP_INT_THREAD_CONDATTR_DEFAULT	pthread_condattr_default
+#  define LDAP_INT_THREAD_MUTEXATTR_DEFAULT	pthread_mutexattr_default
+#else
+#  define LDAP_INT_THREAD_ATTR_DEFAULT		NULL
+#  define LDAP_INT_THREAD_CONDATTR_DEFAULT	NULL
+#  define LDAP_INT_THREAD_MUTEXATTR_DEFAULT NULL
+#endif
+
+#ifdef LDAP_THREAD_DEBUG
+#  if defined LDAP_INT_THREAD_MUTEXATTR	/* May be defined in CPPFLAGS */
+#  elif defined HAVE_PTHREAD_KILL_OTHER_THREADS_NP
+	 /* LinuxThreads hack */
+#    define LDAP_INT_THREAD_MUTEXATTR	PTHREAD_MUTEX_ERRORCHECK_NP
+#  else
+#    define LDAP_INT_THREAD_MUTEXATTR	PTHREAD_MUTEX_ERRORCHECK
+#  endif
+static pthread_mutexattr_t mutex_attr;
+#  undef  LDAP_INT_THREAD_MUTEXATTR_DEFAULT
+#  define LDAP_INT_THREAD_MUTEXATTR_DEFAULT &mutex_attr
+#endif
+
+static pthread_mutexattr_t mutex_attr_recursive;
+
+#if HAVE_PTHREADS < 7
+#define ERRVAL(val)	((val) < 0 ? errno : 0)
+#else
+#define ERRVAL(val)	(val)
+#endif
+
+int
+ldap_int_thread_initialize( void )
+{
+#ifdef LDAP_INT_THREAD_MUTEXATTR
+	pthread_mutexattr_init( &mutex_attr );
+	pthread_mutexattr_settype( &mutex_attr, LDAP_INT_THREAD_MUTEXATTR );
+#endif
+	if (pthread_mutexattr_init(&mutex_attr_recursive))
+		return -1;
+	if (pthread_mutexattr_settype(&mutex_attr_recursive, PTHREAD_MUTEX_RECURSIVE))
+		return -1;
+	return 0;
+}
+
+int
+ldap_int_thread_destroy( void )
+{
+#ifdef HAVE_PTHREAD_KILL_OTHER_THREADS_NP
+	/* LinuxThreads: kill clones */
+	pthread_kill_other_threads_np();
+#endif
+#ifdef LDAP_INT_THREAD_MUTEXATTR
+	pthread_mutexattr_destroy( &mutex_attr );
+#endif
+	pthread_mutexattr_destroy( &mutex_attr_recursive );
+	return 0;
+}
+
+#ifdef LDAP_THREAD_HAVE_SETCONCURRENCY
+int
+ldap_pvt_thread_set_concurrency(int n)
+{
+#ifdef HAVE_PTHREAD_SETCONCURRENCY
+	return pthread_setconcurrency( n );
+#elif defined(HAVE_THR_SETCONCURRENCY)
+	return thr_setconcurrency( n );
+#else
+	return 0;
+#endif
+}
+#endif
+
+#ifdef LDAP_THREAD_HAVE_GETCONCURRENCY
+int
+ldap_pvt_thread_get_concurrency(void)
+{
+#ifdef HAVE_PTHREAD_GETCONCURRENCY
+	return pthread_getconcurrency();
+#elif defined(HAVE_THR_GETCONCURRENCY)
+	return thr_getconcurrency();
+#else
+	return 0;
+#endif
+}
+#endif
+
+/* detachstate appeared in Draft 6, but without manifest constants.
+ * in Draft 7 they were called PTHREAD_CREATE_UNDETACHED and ...DETACHED.
+ * in Draft 8 on, ...UNDETACHED became ...JOINABLE.
+ */
+#ifndef PTHREAD_CREATE_JOINABLE
+#ifdef PTHREAD_CREATE_UNDETACHED
+#define	PTHREAD_CREATE_JOINABLE	PTHREAD_CREATE_UNDETACHED
+#else
+#define	PTHREAD_CREATE_JOINABLE	0
+#endif
+#endif
+
+#ifndef PTHREAD_CREATE_DETACHED
+#define	PTHREAD_CREATE_DETACHED	1
+#endif
+
+int 
+ldap_pvt_thread_create( ldap_pvt_thread_t * thread,
+	int detach,
+	void *(*start_routine)( void * ),
+	void *arg)
+{
+	int rtn;
+	pthread_attr_t attr;
+
+/* Always create the thread attrs, so we can set stacksize if we need to */
+#if HAVE_PTHREADS > 5
+	pthread_attr_init(&attr);
+#else
+	pthread_attr_create(&attr);
+#endif
+
+#ifdef LDAP_PVT_THREAD_SET_STACK_SIZE
+	/* this should be tunable */
+	pthread_attr_setstacksize( &attr, LDAP_PVT_THREAD_STACK_SIZE );
+	if ( ldap_int_stackguard )
+		pthread_attr_setguardsize( &attr, LDAP_PVT_THREAD_STACK_SIZE );
+#endif
+
+#if HAVE_PTHREADS > 5
+	detach = detach ? PTHREAD_CREATE_DETACHED : PTHREAD_CREATE_JOINABLE;
+#if HAVE_PTHREADS == 6
+	pthread_attr_setdetachstate(&attr, &detach);
+#else
+	pthread_attr_setdetachstate(&attr, detach);
+#endif
+#endif
+
+#if HAVE_PTHREADS < 5
+	rtn = pthread_create( thread, attr, start_routine, arg );
+#else
+	rtn = pthread_create( thread, &attr, start_routine, arg );
+#endif
+
+#if HAVE_PTHREADS > 5
+	pthread_attr_destroy(&attr);
+#else
+	pthread_attr_delete(&attr);
+	if( detach ) {
+		pthread_detach( thread );
+	}
+#endif
+
+#if HAVE_PTHREADS < 7
+	if ( rtn < 0 ) rtn = errno;
+#endif
+	return rtn;
+}
+
+void 
+ldap_pvt_thread_exit( void *retval )
+{
+	pthread_exit( retval );
+}
+
+int 
+ldap_pvt_thread_join( ldap_pvt_thread_t thread, void **thread_return )
+{
+#if HAVE_PTHREADS < 7
+	void *dummy;
+	if (thread_return==NULL)
+	  thread_return=&dummy;
+#endif
+	return ERRVAL( pthread_join( thread, thread_return ) );
+}
+
+int 
+ldap_pvt_thread_kill( ldap_pvt_thread_t thread, int signo )
+{
+#if defined(HAVE_PTHREAD_KILL) && HAVE_PTHREADS > 4
+	/* MacOS 10.1 is detected as v10 but has no pthread_kill() */
+	return ERRVAL( pthread_kill( thread, signo ) );
+#else
+	/* pthread package with DCE */
+	if (kill( getpid(), signo )<0)
+		return errno;
+	return 0;
+#endif
+}
+
+int 
+ldap_pvt_thread_yield( void )
+{
+#ifdef REPLACE_BROKEN_YIELD
+#ifdef HAVE_NANOSLEEP
+	struct timespec t = { 0, 0 };
+	nanosleep(&t, NULL);
+#else
+	struct timeval tv = {0,0};
+	select( 0, NULL, NULL, NULL, &tv );
+#endif
+	return 0;
+
+#elif defined(HAVE_THR_YIELD)
+	thr_yield();
+	return 0;
+
+#elif HAVE_PTHREADS == 10
+	return sched_yield();
+
+#elif defined(_POSIX_THREAD_IS_GNU_PTH)
+	sched_yield();
+	return 0;
+
+#elif HAVE_PTHREADS == 6
+	pthread_yield(NULL);
+	return 0;
+
+#else
+	pthread_yield();
+	return 0;
+#endif
+}
+
+int 
+ldap_pvt_thread_cond_init( ldap_pvt_thread_cond_t *cond )
+{
+	return ERRVAL( pthread_cond_init(
+		cond, LDAP_INT_THREAD_CONDATTR_DEFAULT ) );
+}
+
+int 
+ldap_pvt_thread_cond_destroy( ldap_pvt_thread_cond_t *cond )
+{
+	return ERRVAL( pthread_cond_destroy( cond ) );
+}
+	
+int 
+ldap_pvt_thread_cond_signal( ldap_pvt_thread_cond_t *cond )
+{
+	return ERRVAL( pthread_cond_signal( cond ) );
+}
+
+int
+ldap_pvt_thread_cond_broadcast( ldap_pvt_thread_cond_t *cond )
+{
+	return ERRVAL( pthread_cond_broadcast( cond ) );
+}
+
+int 
+ldap_pvt_thread_cond_wait( ldap_pvt_thread_cond_t *cond, 
+		      ldap_pvt_thread_mutex_t *mutex )
+{
+	return ERRVAL( pthread_cond_wait( cond, mutex ) );
+}
+
+int 
+ldap_pvt_thread_mutex_init( ldap_pvt_thread_mutex_t *mutex )
+{
+	return ERRVAL( pthread_mutex_init(
+		mutex, LDAP_INT_THREAD_MUTEXATTR_DEFAULT ) );
+}
+
+int 
+ldap_pvt_thread_mutex_destroy( ldap_pvt_thread_mutex_t *mutex )
+{
+	return ERRVAL( pthread_mutex_destroy( mutex ) );
+}
+
+int 
+ldap_pvt_thread_mutex_lock( ldap_pvt_thread_mutex_t *mutex )
+{
+	return ERRVAL( pthread_mutex_lock( mutex ) );
+}
+
+int 
+ldap_pvt_thread_mutex_trylock( ldap_pvt_thread_mutex_t *mutex )
+{
+	return ERRVAL( pthread_mutex_trylock( mutex ) );
+}
+
+int 
+ldap_pvt_thread_mutex_unlock( ldap_pvt_thread_mutex_t *mutex )
+{
+	return ERRVAL( pthread_mutex_unlock( mutex ) );
+}
+
+int
+ldap_pvt_thread_mutex_recursive_init( ldap_pvt_thread_mutex_t *mutex )
+{
+	return ERRVAL( pthread_mutex_init( mutex, &mutex_attr_recursive ) );
+}
+
+ldap_pvt_thread_t ldap_pvt_thread_self( void )
+{
+	return pthread_self();
+}
+
+int
+ldap_pvt_thread_key_create( ldap_pvt_thread_key_t *key )
+{
+	return pthread_key_create( key, NULL );
+}
+
+int
+ldap_pvt_thread_key_destroy( ldap_pvt_thread_key_t key )
+{
+	return pthread_key_delete( key );
+}
+
+int
+ldap_pvt_thread_key_setdata( ldap_pvt_thread_key_t key, void *data )
+{
+	return pthread_setspecific( key, data );
+}
+
+int
+ldap_pvt_thread_key_getdata( ldap_pvt_thread_key_t key, void **data )
+{
+	*data = pthread_getspecific( key );
+	return 0;
+}
+
+#ifdef LDAP_THREAD_HAVE_RDWR
+#ifdef HAVE_PTHREAD_RWLOCK_DESTROY
+int 
+ldap_pvt_thread_rdwr_init( ldap_pvt_thread_rdwr_t *rw )
+{
+	return ERRVAL( pthread_rwlock_init( rw, NULL ) );
+}
+
+int 
+ldap_pvt_thread_rdwr_destroy( ldap_pvt_thread_rdwr_t *rw )
+{
+	return ERRVAL( pthread_rwlock_destroy( rw ) );
+}
+
+int ldap_pvt_thread_rdwr_rlock( ldap_pvt_thread_rdwr_t *rw )
+{
+	return ERRVAL( pthread_rwlock_rdlock( rw ) );
+}
+
+int ldap_pvt_thread_rdwr_rtrylock( ldap_pvt_thread_rdwr_t *rw )
+{
+	return ERRVAL( pthread_rwlock_tryrdlock( rw ) );
+}
+
+int ldap_pvt_thread_rdwr_runlock( ldap_pvt_thread_rdwr_t *rw )
+{
+	return ERRVAL( pthread_rwlock_unlock( rw ) );
+}
+
+int ldap_pvt_thread_rdwr_wlock( ldap_pvt_thread_rdwr_t *rw )
+{
+	return ERRVAL( pthread_rwlock_wrlock( rw ) );
+}
+
+int ldap_pvt_thread_rdwr_wtrylock( ldap_pvt_thread_rdwr_t *rw )
+{
+	return ERRVAL( pthread_rwlock_trywrlock( rw ) );
+}
+
+int ldap_pvt_thread_rdwr_wunlock( ldap_pvt_thread_rdwr_t *rw )
+{
+	return ERRVAL( pthread_rwlock_unlock( rw ) );
+}
+
+#endif /* HAVE_PTHREAD_RWLOCK_DESTROY */
+#endif /* LDAP_THREAD_HAVE_RDWR */
+#endif /* HAVE_PTHREADS */
+