Module: kamailio Branch: master Commit: f6b5f782e0ebc8570d640415c61b9bf654336154 URL: https://github.com/kamailio/kamailio/commit/f6b5f782e0ebc8570d640415c61b9bf… Author: Nacho Garcia Segovia &lt;nacho.gs(a)zaleos.net&gt; Committer: Nacho Garcia Segovia &lt;nacho.gs(a)zaleos.net&gt; Date: 2020-05-15T08:21:15+02:00 keepalive: early start of OPTIONS checking - Current code takes some time to start checking (ping_interval). So, if someone sets a really high ping_interval it takes a while to get destination status. This change fires the first OPTIONS check just 3 seconds (fixed) after the destination is added. The checks would be done with the pace defined in ping_interval. --- Modified: src/modules/keepalive/keepalive.h Modified: src/modules/keepalive/keepalive_api.c Modified: src/modules/keepalive/keepalive_core.c --- Diff: https://github.com/kamailio/kamailio/commit/f6b5f782e0ebc8570d640415c61b9bf… Patch: https://github.com/kamailio/kamailio/commit/f6b5f782e0ebc8570d640415c61b9bf… --- diff --git a/src/modules/keepalive/keepalive.h b/src/modules/keepalive/keepalive.h index a8da607db8..41e8eab00a 100644 --- a/src/modules/keepalive/keepalive.h +++ b/src/modules/keepalive/keepalive.h @@ -48,6 +48,8 @@ extern int ka_ping_interval; #define KA_PROBE_INACTIVE 2 #define KA_PROBE_ONLYFLAGGED 3 +#define KA_FIRST_TRY_DELAY 500 /* First OPTIONS send is done 500 millis after adding the destination */ + typedef void (*ka_statechanged_f)(str *uri, int state, void *user_attr); typedef void (*ka_response_f)( str *uri, struct tmcb_params *ps, void *user_attr); @@ -62,6 +64,7 @@ typedef struct _ka_dest int state; time_t last_checked, last_up, last_down; int counter; // counts unreachable attemps + ticks_t ping_interval; /*!< Actual interval between OPTIONS */ void *user_attr; ka_statechanged_f statechanged_clb; @@ -70,7 +73,7 @@ typedef struct _ka_dest struct ip_addr ip_address; /*!< IP-Address of the entry */ unsigned short int port; /*!< Port of the URI */ unsigned short int proto; /*!< Protocol of the URI */ - struct timer_ln *timer; + struct timer_ln *timer; /*!< Timer firing the OPTIONS test */ struct _ka_dest *next; } ka_dest_t; diff --git a/src/modules/keepalive/keepalive_api.c b/src/modules/keepalive/keepalive_api.c index 18336084af..19339c4ba6 100644 --- a/src/modules/keepalive/keepalive_api.c +++ b/src/modules/keepalive/keepalive_api.c @@ -107,6 +107,7 @@ int ka_add_dest(str *uri, str *owner, int flags, int ping_interval, dest->statechanged_clb = statechanged_clb; dest->response_clb = response_clb; dest->user_attr = user_attr; + dest->ping_interval = MS_TO_TICKS((ping_interval == 0 ? ka_ping_interval : ping_interval) * 1000) ; dest->timer = timer_alloc(); if (dest->timer == NULL) { @@ -116,8 +117,7 @@ int ka_add_dest(str *uri, str *owner, int flags, int ping_interval, timer_init(dest->timer, ka_check_timer, dest, 0); - int actual_ping_interval = ping_interval == 0 ? ka_ping_interval : ping_interval; - if(timer_add(dest->timer, MS_TO_TICKS(actual_ping_interval * 1000)) < 0){ + if(timer_add(dest->timer, MS_TO_TICKS(KA_FIRST_TRY_DELAY)) < 0){ LM_ERR("failed to start timer\n"); goto err; } diff --git a/src/modules/keepalive/keepalive_core.c b/src/modules/keepalive/keepalive_core.c index 04b520a62b..4daa57908d 100644 --- a/src/modules/keepalive/keepalive_core.c +++ b/src/modules/keepalive/keepalive_core.c @@ -82,7 +82,7 @@ ticks_t ka_check_timer(ticks_t ticks, struct timer_ln* tl, void* param) ka_dest->last_checked = time(NULL); - return (ticks_t)(-1); /* periodical */ + return ka_dest->ping_interval; /* periodical, but based on dest->ping_interval, not on initial_timeout */ } /*! \brief