From f192014c1a738f51bcc1b0fd91909ad234eea91f Mon Sep 17 00:00:00 2001
From: Kurt Zeilenga <kurt@openldap.org>
Date: Wed, 7 Jun 2000 00:28:35 +0000
Subject: [PATCH] Use pthread rwlocks, if available

---
 include/ldap_int_thread.h         |  5 ++++
 include/ldap_pvt_thread.h         |  2 ++
 include/portable.h.in             |  9 +++++++
 libraries/libldap_r/libldap_r.dsp |  4 +++
 libraries/libldap_r/rdwr.c        |  2 +-
 libraries/libldap_r/thr_posix.c   | 44 +++++++++++++++++++++++++++++++
 6 files changed, 65 insertions(+), 1 deletion(-)

diff --git a/include/ldap_int_thread.h b/include/ldap_int_thread.h
index 7f0257cdfa..5da7f13c17 100644
--- a/include/ldap_int_thread.h
+++ b/include/ldap_int_thread.h
@@ -49,6 +49,11 @@ typedef pthread_cond_t		ldap_int_thread_cond_t;
 #define HAVE_SETCONCURRENCY 1
 #endif
 
+#if defined( HAVE_PTHREAD_RWLOCK_DESTROY )
+#define LDAP_THREAD_HAVE_RDWR 1
+typedef pthread_rwlock_t ldap_pvt_thread_rdwr_t;
+#endif
+
 LDAP_END_DECL
 
 #elif defined ( HAVE_MACH_CTHREADS )
diff --git a/include/ldap_pvt_thread.h b/include/ldap_pvt_thread.h
index f336feafa9..668f58a1eb 100644
--- a/include/ldap_pvt_thread.h
+++ b/include/ldap_pvt_thread.h
@@ -96,6 +96,7 @@ ldap_pvt_thread_mutex_trylock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 LIBLDAP_F( int )
 ldap_pvt_thread_mutex_unlock LDAP_P(( ldap_pvt_thread_mutex_t *mutex ));
 
+#ifndef LDAP_THREAD_HAVE_RDWR
 typedef struct ldap_pvt_thread_rdwr_var {
 	ldap_pvt_thread_mutex_t ltrw_mutex;	
 	ldap_pvt_thread_cond_t ltrw_read;	/* wait for read */
@@ -107,6 +108,7 @@ typedef struct ldap_pvt_thread_rdwr_var {
 	int ltrw_r_wait;
 	int ltrw_w_wait;
 } ldap_pvt_thread_rdwr_t;
+#endif
 
 LIBLDAP_F( int )
 ldap_pvt_thread_rdwr_init LDAP_P((ldap_pvt_thread_rdwr_t *rdwrp));
diff --git a/include/portable.h.in b/include/portable.h.in
index 6da42a598e..03d346c282 100644
--- a/include/portable.h.in
+++ b/include/portable.h.in
@@ -14,6 +14,12 @@
 
 /* end of preamble */
 
+#if !defined(SLAPD_SCHEMA_COMPAT) && !defined(SLAPD_SCHEMA_NOT_COMPAT)
+	/* define SLAPD_SCHEMA_COMPAT if you want old schema codes */
+#define SLAPD_SCHEMA_NOT_COMPAT 1
+#endif
+
+
 /* Define if on AIX 3.
    System headers sometimes define this.
    We just want to avoid a redefinition error message.  */
@@ -203,6 +209,9 @@
 /* Define if you have the pthread_kill function.  */
 #undef HAVE_PTHREAD_KILL
 
+/* Define if you have the pthread_rwlock_destroy function.  */
+#undef HAVE_PTHREAD_RWLOCK_DESTROY
+
 /* Define if you have the pthread_setconcurrency function.  */
 #undef HAVE_PTHREAD_SETCONCURRENCY
 
diff --git a/libraries/libldap_r/libldap_r.dsp b/libraries/libldap_r/libldap_r.dsp
index fe699a88ac..29e1d8d776 100644
--- a/libraries/libldap_r/libldap_r.dsp
+++ b/libraries/libldap_r/libldap_r.dsp
@@ -336,6 +336,10 @@ SOURCE=.\thr_stub.c
 # End Source File
 # Begin Source File
 
+SOURCE=.\threads.c
+# End Source File
+# Begin Source File
+
 SOURCE=..\libldap\tls.c
 # End Source File
 # Begin Source File
diff --git a/libraries/libldap_r/rdwr.c b/libraries/libldap_r/rdwr.c
index 75757adb7d..e97fe7143c 100644
--- a/libraries/libldap_r/rdwr.c
+++ b/libraries/libldap_r/rdwr.c
@@ -226,7 +226,7 @@ int ldap_pvt_thread_rdwr_wunlock( ldap_pvt_thread_rdwr_t *rw )
 	return 0;
 }
 
-#ifdef LDAP_DEBUG
+#ifdef LDAP_RDWR_DEBUG
 
 /* just for testing, 
  * return 0 if false, suitable for assert(ldap_pvt_thread_rdwr_Xchk(rdwr))
diff --git a/libraries/libldap_r/thr_posix.c b/libraries/libldap_r/thr_posix.c
index b66cf7861c..f6a16c5d2a 100644
--- a/libraries/libldap_r/thr_posix.c
+++ b/libraries/libldap_r/thr_posix.c
@@ -218,5 +218,49 @@ ldap_int_thread_mutex_unlock( ldap_int_thread_mutex_t *mutex )
 	return pthread_mutex_unlock( mutex );
 }
 
+#ifdef HAVE_PTHREAD_RWLOCK_DESTROY
+int 
+ldap_pvt_thread_rdwr_init( ldap_pvt_thread_rdwr_t *rw )
+{
+	return pthread_rwlock_init( rw, NULL );
+}
+
+int 
+ldap_pvt_thread_rdwr_destroy( ldap_pvt_thread_rdwr_t *rw )
+{
+	return pthread_rwlock_destroy( rw );
+}
+
+int ldap_pvt_thread_rdwr_rlock( ldap_pvt_thread_rdwr_t *rw )
+{
+	return pthread_rwlock_rdlock( rw );
+}
+
+int ldap_pvt_thread_rdwr_rtrylock( ldap_pvt_thread_rdwr_t *rw )
+{
+	return pthread_rwlock_tryrdlock( rw );
+}
+
+int ldap_pvt_thread_rdwr_runlock( ldap_pvt_thread_rdwr_t *rw )
+{
+	return pthread_rwlock_unlock( rw );
+}
+
+int ldap_pvt_thread_rdwr_wlock( ldap_pvt_thread_rdwr_t *rw )
+{
+	return pthread_rwlock_wrlock( rw );
+}
+
+int ldap_pvt_thread_rdwr_wtrylock( ldap_pvt_thread_rdwr_t *rw )
+{
+	return pthread_rwlock_trywrlock( rw );
+}
+
+int ldap_pvt_thread_rdwr_wunlock( ldap_pvt_thread_rdwr_t *rw )
+{
+	return pthread_rwlock_unlock( rw );
+}
+
+#endif /* LDAP_THREAD_HAVE_RDWR */
 #endif /* HAVE_PTHREADS */
 
-- 
2.39.5