Module: sip-router
Branch: master
Commit: b1aadf4cf9ea8fa91465fadc24ad268398a74880
URL:    
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=b1aadf4cf9ea8fa91465fadc24ad268398a74880

Author: Alex Hermann <[email protected]>
Committer: Charles Chance <[email protected]>
Date:   Thu Nov 13 19:45:32 2014 +0000

dmq: Add init_callback() to API

The init_callback is called after DMQ has synced with the notification_peer.
This callback can thus be used to send/broadcast messages as early as
possible.

---

 modules/dmq/dmq.c               |   12 +++++++++++-
 modules/dmq/notification_peer.c |   34 +++++++++++++++++++++++++++++++++-
 modules/dmq/notification_peer.h |    1 +
 modules/dmq/peer.h              |    2 ++
 modules/htable/ht_dmq.c         |    1 +
 5 files changed, 48 insertions(+), 2 deletions(-)

diff --git a/modules/dmq/dmq.c b/modules/dmq/dmq.c
index 7e4defb..6d53baf 100644
--- a/modules/dmq/dmq.c
+++ b/modules/dmq/dmq.c
@@ -239,7 +239,14 @@ static int mod_init(void)
                LM_ERR("error in shm_malloc\n");
                return -1;
        }
-       
+
+       dmq_init_callback_done = shm_malloc(sizeof(int));
+       if (!dmq_init_callback_done) {
+               LM_ERR("no more shm\n");
+               return -1;
+       }
+       *dmq_init_callback_done = 0;
+
        /**
         * add the dmq notification peer.
         * the dmq is a peer itself so that it can receive node notifications
@@ -326,6 +333,9 @@ static void destroy(void) {
        if (dmq_server_socket.s) {
                pkg_free(dmq_server_socket.s);
        }
+       if (dmq_init_callback_done) {
+               shm_free(dmq_init_callback_done);
+       }
 }
 
 static int handle_dmq_fixup(void** param, int param_no)
diff --git a/modules/dmq/notification_peer.c b/modules/dmq/notification_peer.c
index 2acb9a8..e7d8930 100644
--- a/modules/dmq/notification_peer.c
+++ b/modules/dmq/notification_peer.c
@@ -29,6 +29,9 @@
 str notification_content_type = str_init("text/plain");
 dmq_resp_cback_t notification_callback = {&notification_resp_callback_f, 0};
 
+int *dmq_init_callback_done;
+
+
 /**
  * @brief add notification peer
  */
@@ -36,6 +39,7 @@ int add_notification_peer()
 {
        dmq_peer_t not_peer;
        not_peer.callback = dmq_notification_callback;
+       not_peer.init_callback = NULL;
        not_peer.description.s = "notification_peer";
        not_peer.description.len = 17;
        not_peer.peer_id.s = "notification_peer";
@@ -165,6 +169,21 @@ error:
        return -1;
 }
 
+
+int run_init_callbacks() {
+       dmq_peer_t* crt;
+
+       crt = peer_list->peers;
+       while(crt) {
+               if (crt->init_callback) {
+                       crt->init_callback();
+               }
+               crt = crt->next;
+       }
+       return 0;
+}
+
+
 /**
  * @brief dmq notification callback
  */
@@ -206,6 +225,10 @@ int dmq_notification_callback(struct sip_msg* msg, 
peer_reponse_t* resp)
                                &notification_callback, maxforwards, 
&notification_content_type);
        }
        pkg_free(response_body);
+       if (!*dmq_init_callback_done) {
+               *dmq_init_callback_done = 1;
+               run_init_callbacks();
+       }
        return 0;
 error:
        return -1;
@@ -292,8 +315,17 @@ int notification_resp_callback_f(struct sip_msg* msg, int 
code,
                dmq_node_t* node, void* param)
 {
        int ret;
+       int nodes_recv;
+
        LM_DBG("notification_callback_f triggered [%p %d %p]\n", msg, code, 
param);
-       if(code == 408) {
+       if(code == 200) {
+               nodes_recv = extract_node_list(node_list, msg);
+               LM_DBG("received %d new or changed nodes\n", nodes_recv);
+               if (!*dmq_init_callback_done) {
+                       *dmq_init_callback_done = 1;
+                       run_init_callbacks();
+               }
+       } else if(code == 408) {
                /* deleting node - the server did not respond */
                LM_ERR("deleting server %.*s because of failed request\n", 
STR_FMT(&node->orig_uri));
                if (STR_EQ(node->orig_uri, dmq_notification_address)) {
diff --git a/modules/dmq/notification_peer.h b/modules/dmq/notification_peer.h
index 72df4ec..ff9871d 100644
--- a/modules/dmq/notification_peer.h
+++ b/modules/dmq/notification_peer.h
@@ -34,6 +34,7 @@
 #include "dmq_funcs.h"
 
 extern str notification_content_type;
+extern int *dmq_init_callback_done;
 
 int add_notification_peer();
 int dmq_notification_callback(struct sip_msg* msg, peer_reponse_t* resp);
diff --git a/modules/dmq/peer.h b/modules/dmq/peer.h
index 7ce4434..bd1a15d 100644
--- a/modules/dmq/peer.h
+++ b/modules/dmq/peer.h
@@ -42,11 +42,13 @@ typedef struct peer_response {
 } peer_reponse_t;
 
 typedef int(*peer_callback_t)(struct sip_msg*, peer_reponse_t* resp);
+typedef int(*init_callback_t)();
 
 typedef struct dmq_peer {
        str peer_id;
        str description;
        peer_callback_t callback;
+       init_callback_t init_callback;
        struct dmq_peer* next;
 } dmq_peer_t;
 
diff --git a/modules/htable/ht_dmq.c b/modules/htable/ht_dmq.c
index 284c3dc..21755a7 100644
--- a/modules/htable/ht_dmq.c
+++ b/modules/htable/ht_dmq.c
@@ -59,6 +59,7 @@ int ht_dmq_initialize()
         }
 
        not_peer.callback = ht_dmq_handle_msg;
+       not_peer.init_callback = NULL;
        not_peer.description.s = "htable";
        not_peer.description.len = 6;
        not_peer.peer_id.s = "htable";


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