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-rw-r--r--src/thread.c49
1 files changed, 34 insertions, 15 deletions
diff --git a/src/thread.c b/src/thread.c
index e6fb390..8975bc7 100644
--- a/src/thread.c
+++ b/src/thread.c
@@ -1,4 +1,4 @@
-/* $Id: thread.c,v 1.2 2000-12-08 03:35:07 rjkaes Exp $
+/* $Id: thread.c,v 1.3 2000-12-09 02:35:30 rjkaes Exp $
*
* Handles the creation/destruction of the various threads required for
* processing incoming connections.
@@ -28,6 +28,7 @@ static socklen_t addrlen;
struct thread_s {
pthread_t tid;
enum { T_EMPTY, T_WAITING, T_CONNECTED } status;
+ unsigned int connects;
};
static struct thread_s *thread_ptr;
static pthread_mutex_t mlock = PTHREAD_MUTEX_INITIALIZER;
@@ -40,8 +41,17 @@ struct thread_config_s {
static unsigned int servers_waiting; /* servers waiting for a connection */
static pthread_mutex_t servers_mutex = PTHREAD_MUTEX_INITIALIZER;
-#define LOCK_SERVERS() pthread_mutex_lock(&servers_mutex)
-#define UNLOCK_SERVERS() pthread_mutex_unlock(&servers_mutex)
+#define SERVER_INC() do { \
+ pthread_mutex_lock(&servers_mutex); \
+ servers_waiting++; \
+ pthread_mutex_unlock(&servers_mutex); \
+} while (0)
+
+#define SERVER_DEC() do { \
+ pthread_mutex_lock(&servers_mutex); \
+ servers_waiting--; \
+ pthread_mutex_unlock(&servers_mutex); \
+} while (0)
/*
* Set the configuration values for the various thread related settings.
@@ -96,18 +106,25 @@ static void *thread_main(void *arg)
connfd = accept(listenfd, cliaddr, &clilen);
pthread_mutex_unlock(&mlock);
- LOCK_SERVERS();
ptr->status = T_CONNECTED;
- servers_waiting--;
- UNLOCK_SERVERS();
+
+ SERVER_DEC();
handle_connection(connfd);
close(connfd);
- LOCK_SERVERS();
- ptr->status = T_WAITING;
- servers_waiting++;
- UNLOCK_SERVERS();
+ if (thread_config.maxrequestsperchild != 0)
+ ptr->connects++;
+
+ if (ptr->connects > thread_config.maxrequestsperchild) {
+ ptr->connects = 0;
+ ptr->status = T_EMPTY;
+ return NULL;
+ } else {
+ ptr->status = T_WAITING;
+
+ SERVER_INC();
+ }
}
}
/*
@@ -142,6 +159,7 @@ int thread_pool_create(void)
}
for (i = thread_config.startservers; i < thread_config.maxclients; i++) {
thread_ptr[i].status = T_EMPTY;
+ thread_ptr[i].connects = 0;
}
return 0;
@@ -156,14 +174,14 @@ int thread_main_loop(void)
int i;
/* If there are not enough spare servers, create more */
- LOCK_SERVERS();
-
if (servers_waiting < thread_config.minspareservers) {
for (i = 0; i < thread_config.maxclients; i++) {
if (thread_ptr[i].status == T_EMPTY) {
pthread_create(&thread_ptr[i].tid, NULL, &thread_main, &thread_ptr[i]);
thread_ptr[i].status = T_WAITING;
- servers_waiting++;
+
+ SERVER_INC();
+
log(LOG_NOTICE, "Created a new thread.");
break;
}
@@ -172,7 +190,9 @@ int thread_main_loop(void)
for (i = 0; i < thread_config.maxclients; i++) {
if (thread_ptr[i].status == T_WAITING) {
pthread_join(thread_ptr[i].tid, NULL);
- servers_waiting--;
+
+ SERVER_DEC();
+
thread_ptr[i].status = T_EMPTY;
log(LOG_NOTICE, "Killed off a thread.");
break;
@@ -180,7 +200,6 @@ int thread_main_loop(void)
}
}
- UNLOCK_SERVERS();
return 0;
}