Implemented the open, init functions correctly

[openldap] / servers / slapd / init.c

diff --git a/servers/slapd/init.c b/servers/slapd/init.c
index e93479432cbb9e3e26eb9c62c5f4379f73772d85..43af8d0a14d7f7b825a51f78ccc3315a874a012d 100644 (file)
--- a/servers/slapd/init.c
+++ b/servers/slapd/init.c
@@ -11,17 +11,153 @@
 #include "portable.h"
 #include "slap.h"
 
-void
-init( void )
+/*
+ * read-only global variables or variables only written by the listener
+ * thread (after they are initialized) - no need to protect them with a mutex.
+ */
+int            slap_debug = 0;
+
+#ifdef LDAP_DEBUG
+int            ldap_syslog = LDAP_DEBUG_STATS;
+#else
+int            ldap_syslog;
+#endif
+
+int            ldap_syslog_level = LOG_DEBUG;
+char           *default_referral;
+time_t         starttime;
+ldap_pvt_thread_t      listener_tid;
+int            g_argc;
+char           **g_argv;
+
+/*
+ * global variables that need mutex protection
+ */
+int                            active_threads;
+ldap_pvt_thread_mutex_t        active_threads_mutex;
+ldap_pvt_thread_cond_t active_threads_cond;
+
+time_t                 currenttime;
+ldap_pvt_thread_mutex_t        currenttime_mutex;
+
+ldap_pvt_thread_mutex_t        new_conn_mutex;
+
+#ifdef SLAPD_CRYPT
+ldap_pvt_thread_mutex_t        crypt_mutex;
+#endif
+
+int                            num_conns;
+long                   ops_initiated;
+long                   ops_completed;
+ldap_pvt_thread_mutex_t        ops_mutex;
+
+long                   num_entries_sent;
+long                   num_bytes_sent;
+ldap_pvt_thread_mutex_t        num_sent_mutex;
+/*
+ * these mutexes must be used when calling the entry2str()
+ * routine since it returns a pointer to static data.
+ */
+ldap_pvt_thread_mutex_t        entry2str_mutex;
+ldap_pvt_thread_mutex_t        replog_mutex;
+
+static char* slap_name;
+int slapMode = SLAP_UNDEFINED_MODE;
+
+int
+slap_init( int mode, char *name )
 {
-       pthread_mutex_init( &active_threads_mutex, pthread_mutexattr_default );
-       pthread_mutex_init( &new_conn_mutex, pthread_mutexattr_default );
-       pthread_mutex_init( &currenttime_mutex, pthread_mutexattr_default );
-       pthread_mutex_init( &entry2str_mutex, pthread_mutexattr_default );
-       pthread_mutex_init( &replog_mutex, pthread_mutexattr_default );
-       pthread_mutex_init( &ops_mutex, pthread_mutexattr_default );
-       pthread_mutex_init( &num_sent_mutex, pthread_mutexattr_default );
+       int rc;
+
+       if( slapMode != SLAP_UNDEFINED_MODE ) {
+               Debug( LDAP_DEBUG_ANY,
+                "%s init: init called twice (old=%d, new=%d)\n",
+                name, slapMode, mode );
+               return 1;
+       }
+
+       slapMode = mode;
+
+       switch ( slapMode ) {
+
+               case SLAP_SERVER_MODE:
+               case SLAP_TOOL_MODE:
+#ifdef SLAPD_BDB2
+               case SLAP_TIMEDSERVER_MODE:
+#endif
+
+                       Debug( LDAP_DEBUG_TRACE,
+                               "%s init: initiated %s.\n",
+                               name, mode == SLAP_TOOL_MODE ? "tool" : "server", 0 );
+
+                       slap_name = name;
+       
+                       (void) ldap_pvt_thread_initialize();
+
+                       ldap_pvt_thread_mutex_init( &active_threads_mutex );
+                       ldap_pvt_thread_cond_init( &active_threads_cond );
+
+                       ldap_pvt_thread_mutex_init( &new_conn_mutex );
+                       ldap_pvt_thread_mutex_init( &currenttime_mutex );
+                       ldap_pvt_thread_mutex_init( &entry2str_mutex );
+                       ldap_pvt_thread_mutex_init( &replog_mutex );
+                       ldap_pvt_thread_mutex_init( &ops_mutex );
+                       ldap_pvt_thread_mutex_init( &num_sent_mutex );
 #ifdef SLAPD_CRYPT
-       pthread_mutex_init( &crypt_mutex, pthread_mutexattr_default );
+                       ldap_pvt_thread_mutex_init( &crypt_mutex );
 #endif
+
+                       rc = backend_init();
+                       break;
+
+               default:
+                       Debug( LDAP_DEBUG_ANY,
+                               "%s init: undefined mode (%d).\n", name, mode, 0 );
+                       rc = 1;
+                       break;
+       }
+
+       return rc;
+}
+
+int slap_startup(int dbnum)
+{
+       int rc;
+
+       Debug( LDAP_DEBUG_TRACE,
+               "%s startup: initiated.\n",
+               slap_name, 0, 0 );
+
+       rc = backend_startup(dbnum);
+
+       return rc;
+}
+
+int slap_shutdown(int dbnum)
+{
+       int rc;
+
+       Debug( LDAP_DEBUG_TRACE,
+               "%s shutdown: initiated\n",
+               slap_name, 0, 0 );
+
+       /* let backends do whatever cleanup they need to do */
+       rc = backend_shutdown(dbnum); 
+
+       return rc;
 }
+
+int slap_destroy(void)
+{
+       int rc;
+
+       Debug( LDAP_DEBUG_TRACE,
+               "%s shutdown: freeing system resources.\n",
+               slap_name, 0, 0 );
+
+       rc = backend_destroy();
+
+       /* should destory the above mutex */
+       return rc;
+}
+