/**
* check if all SER2Jab workers are still alive
* - if not, try to launch new ones
*/
void xjab_check_workers(int mpid)
{
int i, n, stat;
//DBG("XJAB:%d:xjab_check_workers: time=%d\n", mpid, get_ticks());
if(!jwl || jwl->len <= 0)
return;
for(i=0; i < jwl->len; i++)
{
if(jwl->workers[i].pid > 0)
{
stat = 0;
n = waitpid(jwl->workers[i].pid, &stat, WNOHANG);
if(n == 0 || n!=jwl->workers[i].pid)
continue;
LOG(L_ERR,"XJAB:xjab_check_workers: worker[%d][pid=%d] has exited"
" - status=%d err=%d errno=%d\n", i, jwl->workers[i].pid,
stat, n, errno);
xj_wlist_clean_jobs(jwl, i, 1);
xj_wlist_set_pid(jwl, -1, i);
}
#ifdef XJ_EXTRA_DEBUG
DBG("XJAB:%d:xjab_check_workers: create a new worker[%d]\n", mpid, i);
#endif
if ( (stat=fork())<0 )
{
#ifdef XJ_EXTRA_DEBUG
DBG("XJAB:xjab_check_workers: error - cannot launch new"
" worker[%d]\n", i);
#endif
LOG(L_ERR, "XJAB:xjab_check_workers: error - worker[%d] lost"
" forever \n", i);
return;
}
if (stat == 0)
{
if(xj_wlist_set_pid(jwl, getpid(), i) < 0)
{
LOG(L_ERR, "XJAB:xjab_check_workers: error setting new"
" worker's pid - w[%d]\n", i);
return;
}
xj_worker_process(jwl,jaddress,jport,i,db_con[i]);
exit(0);
}
}
}
/**
* check if all SER2Jab workers are still alive
* - if not, try to launch new ones
*/
void xjab_check_workers(int mpid)
{
int i, n, stat;
//LM_DBG("time=%d\n", get_ticks());
if(!jwl || jwl->len <= 0)
return;
for(i=0; i < jwl->len; i++)
{
if(jwl->workers[i].pid > 0)
{
stat = 0;
n = waitpid(jwl->workers[i].pid, &stat, WNOHANG);
if(n == 0 || n!=jwl->workers[i].pid)
continue;
LM_ERR("worker[%d][pid=%d] has exited - status=%d err=%d"
"errno=%d\n", i, jwl->workers[i].pid, stat, n, errno);
xj_wlist_clean_jobs(jwl, i, 1);
xj_wlist_set_pid(jwl, -1, i);
}
#ifdef XJ_EXTRA_DEBUG
LM_DBG("create a new worker[%d]\n", i);
#endif
if ( (stat=fork())<0 )
{
#ifdef XJ_EXTRA_DEBUG
LM_DBG("cannot launch new worker[%d]\n", i);
#endif
LM_ERR("worker[%d] lost forever \n", i);
return;
}
if (stat == 0)
{
if(xj_wlist_set_pid(jwl, getpid(), i) < 0)
{
LM_ERR("failed to set new worker's pid - w[%d]\n", i);
return;
}
xj_worker_process(jwl,jaddress,jport,priority, i,
db_con[i], &jabber_dbf);
exit(0);
}
}
}
/*
* Initialize children
*/
static int child_init(int rank)
{
int i, j, mpid, cpid;
LM_DBG("initializing child <%d>\n", rank);
/* Rank 0 is main process now - 1 is the first child (janakj) */
if(rank == 1)
{
#ifdef HAVE_IHTTP
/** register iHTTP callbacks -- go forward in any case*/
ihb.reg_f("xjab", "XMPP Gateway", IH_MENU_YES,
xjab_mod_info, NULL);
ihb.reg_f("xjabc", "XMPP connections", IH_MENU_YES,
xjab_connections, NULL);
#endif
if((mpid=fork())<0 )
{
LM_ERR("cannot launch worker's manager\n");
return -1;
}
if(mpid == 0)
{
/** launching the workers */
for(i=0;i<nrw;i++)
{
if ( (cpid=fork())<0 )
{
LM_ERR("cannot launch worker\n");
return -1;
}
if (cpid == 0)
{
for(j=0;j<nrw;j++)
if(j!=i) close(pipes[j][0]);
close(pipes[i][1]);
if(xj_wlist_set_pid(jwl, getpid(), i) < 0)
{
LM_ERR("failed to set worker's pid\n");
return -1;
}
xj_worker_process(jwl,jaddress,jport, priority, i,
db_con[i], &jabber_dbf);
exit(0);
}
}
mpid = getpid();
while(1)
{
sleep(check_time);
xjab_check_workers(mpid);
}
}
}
//if(pipes)
//{
// for(i=0;i<nrw;i++)
// close(pipes[i][0]);
//}
return 0;
}
/**
* check if all SER2Jab workers are still alive
* - if not, try to launch new ones
*/
void xjab_check_workers(int mpid)
{
int i, n, stat;
//DBG("XJAB:%d:xjab_check_workers: time=%d\n", mpid, get_ticks());
if(!jwl || jwl->len <= 0)
return;
for(i=0; i < jwl->len; i++)
{
if(jwl->workers[i].pid > 0)
{
stat = 0;
n = waitpid(jwl->workers[i].pid, &stat, WNOHANG);
if(n == 0 || n!=jwl->workers[i].pid)
continue;
LOG(L_ERR,"XJAB:xjab_check_workers: worker[%d][pid=%d] has exited"
" - status=%d err=%d errno=%d\n", i, jwl->workers[i].pid,
stat, n, errno);
xj_wlist_clean_jobs(jwl, i, 1);
xj_wlist_set_pid(jwl, -1, i);
}
#ifdef XJ_EXTRA_DEBUG
DBG("XJAB:%d:xjab_check_workers: create a new worker[%d]\n", mpid, i);
#endif
if ( (stat=fork())<0 )
{
#ifdef XJ_EXTRA_DEBUG
DBG("XJAB:xjab_check_workers: error - cannot launch new"
" worker[%d]\n", i);
#endif
LOG(L_ERR, "XJAB:xjab_check_workers: error - worker[%d] lost"
" forever \n", i);
return;
}
if (stat == 0)
{
if(xj_wlist_set_pid(jwl, getpid(), i) < 0)
{
LOG(L_ERR, "XJAB:xjab_check_workers: error setting new"
" worker's pid - w[%d]\n", i);
return;
}
/* initialize the config framework
* The child process was not registered under
* the framework during mod_init, therefore the
* late version needs to be called. (Miklos) */
if (cfg_late_child_init()) return;
ctx = db_ctx("jabber");
if (ctx == NULL) goto dberror;
if (db_add_db(ctx, db_url) < 0) goto dberror;
if (db_connect(ctx) < 0) goto dberror;
cmd = db_cmd(DB_GET, ctx, db_table, db_cols, db_params, NULL);
if (!cmd) goto dberror;
xj_worker_process(jwl,jaddress,jport,i, cmd);
db_cmd_free(cmd);
db_ctx_free(ctx);
ctx = NULL;
/* destroy the local config */
cfg_child_destroy();
exit(0);
}
}
dberror:
if (cmd) db_cmd_free(cmd);
cmd = NULL;
if (ctx) db_ctx_free(ctx);
ctx = NULL;
}
/*
* Initialize children
*/
static int child_init(int rank)
{
int i, j, mpid, cpid;
DBG("XJAB:child_init: initializing child <%d>\n", rank);
/* Rank 0 is main process now - 1 is the first child (janakj) */
if(rank == 1)
{
#ifdef HAVE_IHTTP
/** register iHTTP callbacks -- go forward in any case*/
ihb.reg_f("xjab", "XMPP Gateway", IH_MENU_YES,
xjab_mod_info, NULL);
ihb.reg_f("xjabc", "XMPP connections", IH_MENU_YES,
xjab_connections, NULL);
#endif
if((mpid=fork())<0 )
{
LOG(L_ERR, "XJAB:child_init:error - cannot launch worker's"
" manager\n");
return -1;
}
if(mpid == 0)
{
/** launching the workers */
for(i=0;i<nrw;i++)
{
if ( (cpid=fork())<0 )
{
LOG(L_ERR,"XJAB:child_init:error - cannot launch worker\n");
return -1;
}
if (cpid == 0)
{
for(j=0;j<nrw;j++)
if(j!=i) close(pipes[j][0]);
close(pipes[i][1]);
if(xj_wlist_set_pid(jwl, getpid(), i) < 0)
{
LOG(L_ERR, "XJAB:child_init:error setting worker's"
" pid\n");
return -1;
}
/* initialize the config framework */
if (cfg_child_init()) return -1;
ctx = db_ctx("jabber");
if (ctx == NULL) goto dberror;
if (db_add_db(ctx, db_url) < 0) goto dberror;
if (db_connect(ctx) < 0) goto dberror;
cmd = db_cmd(DB_GET, ctx, db_table, db_cols, db_params, NULL);
if (!cmd) goto dberror;
xj_worker_process(jwl,jaddress,jport,i, cmd);
db_cmd_free(cmd);
db_ctx_free(ctx);
ctx = NULL;
/* destroy the local config */
cfg_child_destroy();
exit(0);
}
}
mpid = getpid();
/* initialize the config framework */
if (cfg_child_init()) return -1;
while(1)
{
sleep(check_time);
/* update the local config */
cfg_update();
xjab_check_workers(mpid);
}
}
}
//if(pipes)
//{
// for(i=0;i<nrw;i++)
// close(pipes[i][0]);
//}
return 0;
dberror:
if (cmd) db_cmd_free(cmd);
cmd = NULL;
if (ctx) db_ctx_free(ctx);
ctx = NULL;
return -1;
}
