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Optimisation to send only to correct processid.

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Jeremy
(This used to be commit 3807c747a4)
This commit is contained in:
Jeremy Allison 2001-10-16 23:52:14 +00:00
parent 3f1d100842
commit ca4c584fb5
1 changed files with 16 additions and 6 deletions
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22
source3/printing/printing.c
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@ -477,14 +477,24 @@ static void print_queue_receive(int msg_type, pid_t src, void *buf, size_t len)
print_queue_update_background(snum);
}
static pid_t background_lpq_updater_pid;
/****************************************************************************
main thread of the background lpq updater
****************************************************************************/
void start_background_queue(void)
{
DEBUG(3,("Starting background LPQ thread\n"));
if(sys_fork()==0) {
DEBUG(5,("background LPQ thread started\n"));
DEBUG(3,("start_background_queue: Starting background LPQ thread\n"));
background_lpq_updater_pid = sys_fork();
if (background_lpq_updater_pid == -1) {
DEBUG(5,("start_background_queue: background LPQ thread failed to start. %s\n", strerror(errno) ));
exit(1);
}
if(background_lpq_updater_pid == 0) {
/* Child. */
DEBUG(5,("start_background_queue: background LPQ thread started\n"));
claim_connection(NULL,"smbd lpq backend",MAXSTATUS,False);
@ -498,10 +508,10 @@ void start_background_queue(void)
message_register(MSG_PRINTER_UPDATE, print_queue_receive);
DEBUG(5,("background LPQ thread waiting for messages\n"));
DEBUG(5,("start_background_queue: background LPQ thread waiting for messages\n"));
while (1) {
pause();
DEBUG(10,("background LPQ thread got a message\n"));
DEBUG(10,("start_background_queue: background LPQ thread got a message\n"));
message_dispatch();
}
}
@ -512,7 +522,7 @@ update the internal database from the system print queue for a queue
****************************************************************************/
static void print_queue_update(int snum)
{
message_send_all(conn_tdb_ctx(), MSG_PRINTER_UPDATE, &snum, sizeof(snum), False);
message_send_pid(background_lpq_updater_pid, MSG_PRINTER_UPDATE, &snum, sizeof(snum), False);
}
/****************************************************************************