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/*
Copyright (c) 2014 Red Hat, Inc. <http://www.redhat.com>
This file is part of GlusterFS.
This file is licensed to you under your choice of the GNU Lesser
General Public License, version 3 or any later version (LGPLv3 or
later), or the GNU General Public License, version 2 (GPLv2), in all
cases as published by the Free Software Foundation.
*/
#include <stdio.h>
#include <limits.h>
#include <signal.h>
#include "glusterd.h"
#include "glusterd-utils.h"
#include <glusterfs/common-utils.h>
#include <glusterfs/xlator.h>
#include <glusterfs/logging.h>
#include "glusterd-messages.h"
#include "glusterd-proc-mgmt.h"
int
glusterd_proc_init(glusterd_proc_t *proc, char *name, char *pidfile,
char *logdir, char *logfile, char *volfile, char *volfileid,
char *volfileserver)
{
int ret = -1;
ret = snprintf(proc->name, sizeof(proc->name), "%s", name);
if (ret < 0)
goto out;
ret = snprintf(proc->pidfile, sizeof(proc->pidfile), "%s", pidfile);
if (ret < 0)
goto out;
ret = snprintf(proc->logdir, sizeof(proc->logdir), "%s", logdir);
if (ret < 0)
goto out;
ret = snprintf(proc->logfile, sizeof(proc->logfile), "%s", logfile);
if (ret < 0)
goto out;
ret = snprintf(proc->volfile, sizeof(proc->volfile), "%s", volfile);
if (ret < 0)
goto out;
ret = snprintf(proc->volfileid, sizeof(proc->volfileid), "%s", volfileid);
if (ret < 0)
goto out;
ret = snprintf(proc->volfileserver, sizeof(proc->volfileserver), "%s",
volfileserver);
if (ret < 0)
goto out;
out:
if (ret > 0)
ret = 0;
return ret;
}
int
glusterd_proc_stop(glusterd_proc_t *proc, int sig, int flags)
{
/* NB: Copy-paste code from glusterd_service_stop, the source may be
* removed once all daemon management use proc */
int32_t ret = -1;
pid_t pid = -1;
xlator_t *this = NULL;
glusterd_conf_t *conf = NULL;
this = THIS;
GF_ASSERT(this);
conf = this->private;
GF_ASSERT(conf);
if (!gf_is_service_running(proc->pidfile, &pid)) {
ret = 0;
gf_msg(this->name, GF_LOG_INFO, 0, GD_MSG_ALREADY_STOPPED,
"%s already stopped", proc->name);
goto out;
}
gf_msg(this->name, GF_LOG_INFO, 0, GD_MSG_SVC_STOP_SUCCESS,
"Stopping %s daemon running in pid: "
"%d",
proc->name, pid);
ret = kill(pid, sig);
if (ret) {
switch (errno) {
case ESRCH:
gf_msg_debug(this->name, 0,
"%s is already "
"stopped",
proc->name);
ret = 0;
goto out;
default:
gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_SVC_KILL_FAIL,
"Unable to kill %s "
"service, reason:%s",
proc->name, strerror(errno));
}
} else {
(void)glusterd_unlink_file(proc->pidfile);
}
if (flags != PROC_STOP_FORCE)
goto out;
synclock_unlock(&conf->big_lock);
sleep(1);
synclock_lock(&conf->big_lock);
if (gf_is_service_running(proc->pidfile, &pid)) {
ret = kill(pid, SIGKILL);
if (ret) {
gf_msg(this->name, GF_LOG_ERROR, errno, GD_MSG_PID_KILL_FAIL,
"Unable to kill pid:%d, "
"reason:%s",
pid, strerror(errno));
goto out;
}
ret = glusterd_unlink_file(proc->pidfile);
if (ret)
goto out;
}
ret = 0;
out:
return ret;
}
int
glusterd_proc_get_pid(glusterd_proc_t *proc)
{
int pid = -1;
(void)gf_is_service_running(proc->pidfile, &pid);
return pid;
}
int
glusterd_proc_is_running(glusterd_proc_t *proc)
{
int pid = -1;
return gf_is_service_running(proc->pidfile, &pid);
}
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