unixsock plugin: Fix the initialization of the pthread variable under Mac OS X.

diff --git a/src/unixsock.c b/src/unixsock.c
index de1fa4f..f6dbf73 100644 (file)
--- a/src/unixsock.c
+++ b/src/unixsock.c
@@ -74,7 +74,7 @@ static char *sock_file  = NULL;
 static char *sock_group = NULL;
 static int   sock_perms = S_IRWXU | S_IRWXG;
 
-static pthread_t listen_thread = -1;
+static pthread_t listen_thread = NULL;
 
 /* Linked list and auxilliary variables for saving values */
 static value_cache_t   *cache_head = NULL;
@@ -654,7 +654,7 @@ static int us_shutdown (void)
 {
        void *ret;
 
-       if (listen_thread >= 0)
+       if (listen_thread != NULL)
        {
                pthread_kill (listen_thread, SIGTERM);
                pthread_join (listen_thread, &ret);