pthreadpool: use unsigned for num_idle, num_threads and max_threads

These can't get negative.

Signed-off-by: Stefan Metzmacher <metze@samba.org>
Reviewed-by: Ralph Boehme <slow@samba.org>

diff --git a/lib/pthreadpool/pthreadpool.c b/lib/pthreadpool/pthreadpool.c
index 92a88c9ca849e7236efde474b4b5dc9561f682ef..0ab6f63dbf425f74e53f4918f3ba96e9c2581d3b 100644 (file)
--- a/lib/pthreadpool/pthreadpool.c
+++ b/lib/pthreadpool/pthreadpool.c
@@ -78,17 +78,17 @@ struct pthreadpool {
        /*
         * maximum number of threads
         */
-       int max_threads;
+       unsigned max_threads;
 
        /*
         * Number of threads
         */
-       int num_threads;
+       unsigned num_threads;
 
        /*
         * Number of idle threads
         */
-       int num_idle;
+       unsigned num_idle;
 
        /*
         * Condition variable indicating that helper threads should
@@ -206,7 +206,7 @@ static void pthreadpool_prepare_pool(struct pthreadpool *pool)
        assert(ret == 0);
 
        while (pool->num_idle != 0) {
-               int num_idle = pool->num_idle;
+               unsigned num_idle = pool->num_idle;
                pthread_cond_t prefork_cond;
 
                ret = pthread_cond_init(&prefork_cond, NULL);