From 72746498a4b532e0a30a955dd1b3b854d2de0c59 Mon Sep 17 00:00:00 2001 From: Simo Sorce Date: Tue, 16 Aug 2011 16:36:43 -0400 Subject: s3-spoolssd: Send a message to the parent when we accept a connection Every time we accept a connection wanr the parent, so it can run management routines and reallocate more resources if necessary. Signed-off-by: Andreas Schneider Signed-off-by: Simo Sorce --- source3/printing/spoolssd.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) (limited to 'source3') diff --git a/source3/printing/spoolssd.c b/source3/printing/spoolssd.c index 6f644fcd92..b833529f8f 100644 --- a/source3/printing/spoolssd.c +++ b/source3/printing/spoolssd.c @@ -39,6 +39,7 @@ #define SPOOLSS_PIPE_NAME "spoolss" #define DAEMON_NAME "spoolssd" +static struct server_id parent_id; static struct prefork_pool *spoolss_pool = NULL; static int spoolss_child_id = 0; @@ -455,6 +456,7 @@ static void spoolss_handle_client(struct tevent_req *req) { struct spoolss_children_data *data; struct spoolss_new_client *client; + const DATA_BLOB ping = data_blob_null; int ret; int sd; @@ -472,6 +474,10 @@ static void spoolss_handle_client(struct tevent_req *req) return; } + /* Warn parent that our status changed */ + messaging_send(data->msg_ctx, parent_id, + MSG_PREFORK_CHILD_EVENT, &ping); + DEBUG(2, ("Spoolss preforked child %d got client connection!\n", (int)(data->pf->pid))); @@ -504,6 +510,20 @@ static void check_updater_child(void) } } +static void child_ping(struct messaging_context *msg_ctx, + void *private_data, + uint32_t msg_type, + struct server_id server_id, + DATA_BLOB *data) +{ + struct tevent_context *ev_ctx; + + ev_ctx = talloc_get_type_abort(private_data, struct tevent_context); + + DEBUG(10, ("Got message that a child changed status.\n")); + pfh_manage_pool(ev_ctx, msg_ctx, &pf_spoolss_cfg, spoolss_pool); +} + static bool spoolssd_schedule_check(struct tevent_context *ev_ctx, struct messaging_context *msg_ctx, struct timeval current_time); @@ -654,6 +674,9 @@ pid_t start_spoolssd(struct tevent_context *ev_ctx, smb_panic("reinit_after_fork() failed"); } + /* save the parent process id so the children can use it later */ + parent_id = procid_self(); + spoolss_reopen_logs(0); pfh_daemon_config(DAEMON_NAME, &pf_spoolss_cfg, @@ -714,6 +737,8 @@ pid_t start_spoolssd(struct tevent_context *ev_ctx, print_queue_forward); messaging_register(msg_ctx, ev_ctx, MSG_PRINTER_PCAP, pcap_updated); + messaging_register(msg_ctx, ev_ctx, + MSG_PREFORK_CHILD_EVENT, child_ping); /* As soon as messaging is up check if pcap has been loaded already. * If so then we probably missed a message and should load_printers() -- cgit