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diff --git a/tools/storage_mon.c b/tools/storage_mon.c
index 27d2ff1d1..ef4fefed7 100644
--- a/tools/storage_mon.c
+++ b/tools/storage_mon.c
@@ -1,899 +1,900 @@
#include <stdio.h>
#include <getopt.h>
#include <stdlib.h>
#include <stdint.h>
#include <syslog.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <fcntl.h>
#include <time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#ifdef __FreeBSD__
#include <sys/disk.h>
#endif
#include <config.h>
#include <glib.h>
#include <libgen.h>
#include <qb/qbdefs.h>
#include <qb/qblog.h>
#include <qb/qbloop.h>
#include <qb/qbutil.h>
#include <qb/qbipcs.h>
#include <qb/qbipcc.h>
#define MAX_DEVICES 25
#define DEFAULT_TIMEOUT 10
#define DEFAULT_INTERVAL 30
#define DEFAULT_PIDFILE HA_VARRUNDIR "storage_mon.pid"
#define DEFAULT_ATTRNAME "#health-storage_mon"
#define SMON_GET_RESULT_COMMAND "get_check_value"
#define SMON_BUFF_1MEG 1048576
#define SMON_MAX_IPCSNAME 256
#define SMON_MAX_MSGSIZE 128
#define SMON_MAX_RESP_SIZE 100
#define PRINT_STORAGE_MON_ERR(fmt, ...) if (!daemonize) { \
fprintf(stderr, fmt"\n", __VA_ARGS__); \
} else { \
syslog(LOG_ERR, fmt, __VA_ARGS__); \
}
#define PRINT_STORAGE_MON_ERR_NOARGS(str) if (!daemonize) { \
fprintf(stderr, str"\n"); \
} else { \
syslog(LOG_ERR, str); \
}
#define PRINT_STORAGE_MON_INFO(fmt, ...) if (!daemonize) { \
printf(fmt"\n", __VA_ARGS__); \
} else { \
syslog(LOG_INFO, fmt, __VA_ARGS__); \
}
struct storage_mon_timer_data {
int interval;
};
struct storage_mon_check_value_req {
struct qb_ipc_request_header hdr;
char message[SMON_MAX_MSGSIZE];
};
struct storage_mon_check_value_res {
struct qb_ipc_response_header hdr;
char message[SMON_MAX_MSGSIZE];
};
char *devices[MAX_DEVICES];
int scores[MAX_DEVICES];
size_t device_count = 0;
int timeout = DEFAULT_TIMEOUT;
int verbose = 0;
int inject_error_percent = 0;
const char *attrname = DEFAULT_ATTRNAME;
gboolean daemonize = FALSE;
int shutting_down = FALSE;
static qb_ipcs_service_t *ipcs;
int final_score = 0;
int response_final_score = 0;
pid_t test_forks[MAX_DEVICES];
size_t finished_count = 0;
gboolean daemon_check_first_all_devices = FALSE;
static qb_loop_t *storage_mon_poll_handle;
static qb_loop_timer_handle timer_handle;
static qb_loop_timer_handle expire_handle;
static struct storage_mon_timer_data timer_d;
static int test_device_main(gpointer data);
static void wrap_test_device_main(void *data);
static void usage(char *name, FILE *f)
{
fprintf(f, "usage: %s [-hv] [-d <device>]... [-s <score>]... [-t <secs>]\n", name);
fprintf(f, " --device <dev> device to test, up to %d instances\n", MAX_DEVICES);
fprintf(f, " --score <n> score if device fails the test. Must match --device count\n");
fprintf(f, " --timeout <n> max time to wait for a device test to come back. in seconds (default %d)\n", DEFAULT_TIMEOUT);
fprintf(f, " --inject-errors-percent <n> Generate EIO errors <n>%% of the time (for testing only)\n");
fprintf(f, " --daemonize test run in daemons.\n");
fprintf(f, " --client client connection to daemon. requires the attrname option.\n");
fprintf(f, " --interval <n> interval to test. in seconds (default %d)(for daemonize only)\n", DEFAULT_INTERVAL);
fprintf(f, " --pidfile <path> file path to record pid (default %s)(for daemonize only)\n", DEFAULT_PIDFILE);
fprintf(f, " --attrname <attr> attribute name to update test result (default %s)(for daemonize/client only)\n", DEFAULT_ATTRNAME);
fprintf(f, " --verbose emit extra output to stdout\n");
fprintf(f, " --help print this message\n");
}
/* Check one device */
static void *test_device(const char *device, int verbose, int inject_error_percent)
{
uint64_t devsize;
int flags = O_RDONLY | O_DIRECT;
int device_fd;
int res;
- off_t seek_spot;
if (verbose) {
printf("Testing device %s\n", device);
}
device_fd = open(device, flags);
if (device_fd < 0) {
if (errno != EINVAL) {
PRINT_STORAGE_MON_ERR("Failed to open %s: %s", device, strerror(errno));
exit(-1);
}
flags &= ~O_DIRECT;
device_fd = open(device, flags);
if (device_fd < 0) {
PRINT_STORAGE_MON_ERR("Failed to open %s: %s", device, strerror(errno));
exit(-1);
}
}
#ifdef __FreeBSD__
res = ioctl(device_fd, DIOCGMEDIASIZE, &devsize);
#else
res = ioctl(device_fd, BLKGETSIZE64, &devsize);
#endif
if (res < 0) {
PRINT_STORAGE_MON_ERR("Failed to get device size for %s: %s", device, strerror(errno));
goto error;
}
if (verbose) {
PRINT_STORAGE_MON_INFO("%s: opened %s O_DIRECT, size=%zu", device, (flags & O_DIRECT)?"with":"without", devsize);
}
/* Don't fret about real randomness */
srand(time(NULL) + getpid());
- /* Pick a random place on the device - sector aligned */
- seek_spot = (rand() % (devsize-1024)) & 0xFFFFFFFFFFFFFE00;
- res = lseek(device_fd, seek_spot, SEEK_SET);
- if (res < 0) {
- PRINT_STORAGE_MON_ERR("Failed to seek %s: %s", device, strerror(errno));
- goto error;
- }
- if (verbose) {
- PRINT_STORAGE_MON_INFO("%s: reading from pos %ld", device, seek_spot);
- }
if (flags & O_DIRECT) {
int sec_size = 0;
void *buffer;
#ifdef __FreeBSD__
res = ioctl(device_fd, DIOCGSECTORSIZE, &sec_size);
#else
res = ioctl(device_fd, BLKSSZGET, &sec_size);
#endif
if (res < 0) {
PRINT_STORAGE_MON_ERR("Failed to get block device sector size for %s: %s", device, strerror(errno));
goto error;
}
if (posix_memalign(&buffer, sysconf(_SC_PAGESIZE), sec_size) != 0) {
PRINT_STORAGE_MON_ERR("Failed to allocate aligned memory: %s", strerror(errno));
goto error;
}
res = read(device_fd, buffer, sec_size);
free(buffer);
if (res < 0) {
PRINT_STORAGE_MON_ERR("Failed to read %s: %s", device, strerror(errno));
goto error;
}
if (res < sec_size) {
PRINT_STORAGE_MON_ERR("Failed to read %d bytes from %s, got %d", sec_size, device, res);
goto error;
}
} else {
+ off_t seek_spot;
char buffer[512];
+ /* Pick a random place on the device - sector aligned */
+ seek_spot = (rand() % (devsize-1024)) & 0xFFFFFFFFFFFFFE00;
+ res = lseek(device_fd, seek_spot, SEEK_SET);
+ if (res < 0) {
+ PRINT_STORAGE_MON_ERR("Failed to seek %s: %s", device, strerror(errno));
+ goto error;
+ }
+ if (verbose) {
+ PRINT_STORAGE_MON_INFO("%s: reading from pos %ld", device, seek_spot);
+ }
+
res = read(device_fd, buffer, sizeof(buffer));
if (res < 0) {
PRINT_STORAGE_MON_ERR("Failed to read %s: %s", device, strerror(errno));
goto error;
}
if (res < (int)sizeof(buffer)) {
PRINT_STORAGE_MON_ERR("Failed to read %ld bytes from %s, got %d", sizeof(buffer), device, res);
goto error;
}
}
/* Fake an error */
if (inject_error_percent && ((rand() % 100) < inject_error_percent)) {
PRINT_STORAGE_MON_ERR_NOARGS("People, please fasten your seatbelts, injecting errors!");
goto error;
}
res = close(device_fd);
if (res != 0) {
PRINT_STORAGE_MON_ERR("Failed to close %s: %s", device, strerror(errno));
exit(-1);
}
if (verbose) {
PRINT_STORAGE_MON_INFO("%s: done", device);
}
exit(0);
error:
close(device_fd);
exit(-1);
}
static gboolean is_child_runnning(void)
{
size_t i;
for (i=0; i<device_count; i++) {
if (test_forks[i] != 0) {
return TRUE;
}
}
return FALSE;
}
static void stop_child(pid_t pid, int signal)
{
errno = 0;
if (kill(pid, signal) == 0) {
syslog(LOG_DEBUG, "Stopping chilg sent signal %d to process %lld", signal, (long long) pid);
} else {
syslog(LOG_ERR, "Could not stop child (process %lld) with signal %d: %s", (long long) pid, signal, strerror(errno));
}
}
static int32_t sigterm_handler(int num, void *data)
{
size_t i;
shutting_down = TRUE;
/* If there is an unfired timer, stop it. */
qb_loop_timer_del(storage_mon_poll_handle, timer_handle);
/* Send SIGTERM to non-terminating device monitoring processes. */
if (is_child_runnning()) {
/* See if threads have finished */
for (i=0; i<device_count; i++) {
if (test_forks[i] > 0 ) {
stop_child(test_forks[i], SIGTERM);
}
}
}
/* Set a timer for termination. */
qb_loop_timer_add(storage_mon_poll_handle, QB_LOOP_HIGH, 0, NULL, wrap_test_device_main, &timer_handle);
return 0;
}
static size_t find_child_pid(int pid)
{
size_t i;
for (i=0; i<device_count; i++) {
if (test_forks[i] > 0 ) {
if (test_forks[i] == pid) {
return i;
}
}
}
return -1;
}
static int32_t sigchld_handler(int32_t sig, void *data)
{
pid_t pid;
size_t index;
int status;
if (is_child_runnning()) {
while(1) {
pid = waitpid(-1, &status, WNOHANG);
if (pid > 0) {
if (WIFEXITED(status)) {
index = find_child_pid(pid);
if (index >= 0) {
/* If the expire timer is running, no timeout has occurred, */
/* so add the final_score from the exit code of the terminated child process. */
if (qb_loop_timer_is_running(storage_mon_poll_handle, expire_handle)) {
if (WEXITSTATUS(status) !=0) {
syslog(LOG_ERR, "Error reading from device %s", devices[index]);
final_score += scores[index];
/* Update response values immediately in preparation for inquiries from clients. */
response_final_score = final_score;
/* Even in the first demon mode check, if there is an error device, clear */
/* the flag to return the response to the client without waiting for all devices to finish. */
daemon_check_first_all_devices = TRUE;
}
}
finished_count++;
test_forks[index] = 0;
/* Update the result value for the client response once all checks have completed. */
if (device_count == finished_count) {
response_final_score = final_score;
if (!daemon_check_first_all_devices) {
daemon_check_first_all_devices = TRUE;
}
}
}
}
} else {
break;
}
}
}
return 0;
}
static void child_shutdown(int nsig)
{
exit(1);
}
static int write_pid_file(const char *pidfile)
{
char *pid;
char *dir, *str = NULL;
int fd = -1;
int rc = -1;
int i, len;
if (asprintf(&pid, "%jd", (intmax_t)getpid()) < 0) {
syslog(LOG_ERR, "Failed to allocate memory to store PID");
pid = NULL;
goto done;
}
str = strdup(pidfile);
if (str == NULL) {
syslog(LOG_ERR, "Failed to duplicate string ['%s']", pidfile);
goto done;
}
dir = dirname(str);
for (i = 1, len = strlen(dir); i < len; i++) {
if (dir[i] == '/') {
dir[i] = 0;
if ((mkdir(dir, 0640) < 0) && (errno != EEXIST)) {
syslog(LOG_ERR, "Failed to create directory %s: %s", dir, strerror(errno));
goto done;
}
dir[i] = '/';
}
}
if ((mkdir(dir, 0640) < 0) && (errno != EEXIST)) {
syslog(LOG_ERR, "Failed to create directory %s: %s", dir, strerror(errno));
goto done;
}
fd = open(pidfile, O_CREAT | O_WRONLY, 0640);
if (fd < 0) {
syslog(LOG_ERR, "Failed to open %s: %s", pidfile, strerror(errno));
goto done;
}
if (write(fd, pid, strlen(pid)) != strlen(pid)) {
syslog(LOG_ERR, "Failed to write '%s' to %s: %s", pid, pidfile, strerror(errno));
goto done;
}
rc = 0;
done:
if (fd != -1) {
close(fd);
}
if (pid != NULL) {
free(pid);
}
if (str != NULL) {
free(str);
}
return rc;
}
static void child_timeout_handler(void *data)
{
size_t i;
if (is_child_runnning()) {
for (i=0; i<device_count; i++) {
if (test_forks[i] > 0) {
syslog(LOG_ERR, "Reading from device %s did not complete in %d seconds timeout", devices[i], timeout);
/* If timeout occurs before SIGCHLD, add child process failure score to final_score. */
final_score += scores[i];
/* Update response values immediately in preparation for inquiries from clients. */
response_final_score = final_score;
/* Even in the first demon mode check, if there is an error device, clear */
/* the flag to return the response to the client without waiting for all devices to finish. */
daemon_check_first_all_devices = TRUE;
}
}
}
}
static void wrap_test_device_main(void *data)
{
struct storage_mon_timer_data *timer_data = (struct storage_mon_timer_data*)data;
test_device_main((timer_data != NULL) ? &timer_data->interval : NULL);
}
static int test_device_main(gpointer data)
{
size_t i;
struct timespec ts;
time_t start_time;
gboolean device_check = TRUE;
if (daemonize) {
if (shutting_down == TRUE) {
goto done;
}
/* In the case of daemon mode, it is avoided that the timer is triggered and the number of */
/* child processes increases while the device monitoring child process is not completed. */
if (is_child_runnning()) {
device_check = FALSE;
}
}
if (device_check) {
/* Reset final_score, finished_count, test_forks[] */
final_score = 0;
finished_count = 0;
memset(test_forks, 0, sizeof(test_forks));
for (i=0; i<device_count; i++) {
test_forks[i] = fork();
if (test_forks[i] < 0) {
PRINT_STORAGE_MON_ERR("Error spawning fork for %s: %s\n", devices[i], strerror(errno));
/* Just test the devices we have */
break;
}
/* child */
if (test_forks[i] == 0) {
if (daemonize) {
signal(SIGTERM, &child_shutdown);
}
test_device(devices[i], verbose, inject_error_percent);
}
}
if (!daemonize) {
/* See if they have finished */
clock_gettime(CLOCK_REALTIME, &ts);
start_time = ts.tv_sec;
while ((finished_count < device_count) && ((start_time + timeout) > ts.tv_sec)) {
for (i=0; i<device_count; i++) {
int wstatus;
pid_t w;
if (test_forks[i] > 0) {
w = waitpid(test_forks[i], &wstatus, WUNTRACED | WNOHANG | WCONTINUED);
if (w < 0) {
PRINT_STORAGE_MON_ERR("waitpid on %s failed: %s", devices[i], strerror(errno));
return -1;
}
if (w == test_forks[i]) {
if (WIFEXITED(wstatus)) {
if (WEXITSTATUS(wstatus) != 0) {
syslog(LOG_ERR, "Error reading from device %s", devices[i]);
final_score += scores[i];
}
finished_count++;
test_forks[i] = 0;
}
}
}
}
usleep(100000);
clock_gettime(CLOCK_REALTIME, &ts);
}
/* See which threads have not finished */
for (i=0; i<device_count; i++) {
if (test_forks[i] != 0) {
syslog(LOG_ERR, "Reading from device %s did not complete in %d seconds timeout", devices[i], timeout);
fprintf(stderr, "Thread for device %s did not complete in time\n", devices[i]);
final_score += scores[i];
}
}
} else {
/* Run the child process timeout watch timer. */
qb_loop_timer_add(storage_mon_poll_handle, QB_LOOP_MED, timeout * QB_TIME_NS_IN_SEC, NULL, child_timeout_handler, &expire_handle);
}
}
if (!daemonize) {
if (verbose) {
printf("Final score is %d\n", final_score);
}
return final_score;
} else {
if (data != NULL) {
/* Sets the device check to run on the next timer. */
qb_loop_timer_add(storage_mon_poll_handle, QB_LOOP_MED, timer_d.interval * QB_TIME_NS_IN_SEC, &timer_d, wrap_test_device_main, &timer_handle);
}
return TRUE;
}
done:
qb_loop_stop(storage_mon_poll_handle);
return FALSE;
}
static int32_t
storage_mon_job_add(enum qb_loop_priority p, void *data, qb_loop_job_dispatch_fn fn)
{
return qb_loop_job_add(storage_mon_poll_handle, p, data, fn);
}
static int32_t
storage_mon_dispatch_add(enum qb_loop_priority p, int32_t fd, int32_t evts,
void *data, qb_ipcs_dispatch_fn_t fn)
{
return qb_loop_poll_add(storage_mon_poll_handle, p, fd, evts, data, fn);
}
static int32_t
storage_mon_dispatch_mod(enum qb_loop_priority p, int32_t fd, int32_t evts,
void *data, qb_ipcs_dispatch_fn_t fn)
{
return qb_loop_poll_mod(storage_mon_poll_handle, p, fd, evts, data, fn);
}
static int32_t
storage_mon_dispatch_del(int32_t fd)
{
return qb_loop_poll_del(storage_mon_poll_handle, fd);
}
static int32_t
storage_mon_ipcs_connection_accept_fn(qb_ipcs_connection_t * c, uid_t uid, gid_t gid)
{
return 0;
}
static void
storage_mon_ipcs_connection_created_fn(qb_ipcs_connection_t *c)
{
struct qb_ipcs_stats srv_stats;
qb_ipcs_stats_get(ipcs, &srv_stats, QB_FALSE);
syslog(LOG_DEBUG, "Connection created (active:%d, closed:%d)",
srv_stats.active_connections, srv_stats.closed_connections);
}
static void
storage_mon_ipcs_connection_destroyed_fn(qb_ipcs_connection_t *c)
{
syslog(LOG_DEBUG, "Connection about to be freed");
}
static int32_t
storage_mon_ipcs_connection_closed_fn(qb_ipcs_connection_t *c)
{
struct qb_ipcs_connection_stats stats;
struct qb_ipcs_stats srv_stats;
qb_ipcs_stats_get(ipcs, &srv_stats, QB_FALSE);
qb_ipcs_connection_stats_get(c, &stats, QB_FALSE);
syslog(LOG_DEBUG,
"Connection to pid:%d destroyed (active:%d, closed:%d)",
stats.client_pid, srv_stats.active_connections,
srv_stats.closed_connections);
return 0;
}
static int32_t
storage_mon_ipcs_msg_process_fn(qb_ipcs_connection_t *c, void *data, size_t size)
{
struct storage_mon_check_value_req *request;
struct qb_ipc_response_header resps;
ssize_t res;
struct iovec iov[2];
char resp[SMON_MAX_RESP_SIZE];
int32_t rc;
int send_score = response_final_score;
request = (struct storage_mon_check_value_req *)data;
syslog(LOG_DEBUG, "msg received (id:%d, size:%d, data:%s)",
request->hdr.id, request->hdr.size, request->message);
if (strcmp(request->message, SMON_GET_RESULT_COMMAND) != 0) {
syslog(LOG_DEBUG, "request command is unknown.");
send_score = -1;
} else if (!daemon_check_first_all_devices) {
send_score = -2;
}
resps.size = sizeof(struct qb_ipc_response_header);
resps.id = 13;
resps.error = 0;
rc = snprintf(resp, SMON_MAX_RESP_SIZE, "%d", send_score) + 1;
iov[0].iov_len = sizeof(resps);
iov[0].iov_base = &resps;
iov[1].iov_len = rc;
iov[1].iov_base = resp;
resps.size += rc;
res = qb_ipcs_response_sendv(c, iov, 2);
if (res < 0) {
errno = -res;
syslog(LOG_ERR, "qb_ipcs_response_send : errno = %d", errno);
}
return 0;
}
static int32_t
storage_mon_client(void)
{
struct storage_mon_check_value_req request;
struct storage_mon_check_value_res response;
qb_ipcc_connection_t *conn;
char ipcs_name[SMON_MAX_IPCSNAME];
int32_t rc;
memset(&response, 0, sizeof(response));
snprintf(ipcs_name, SMON_MAX_IPCSNAME, "storage_mon_%s", attrname);
conn = qb_ipcc_connect(ipcs_name, 0);
if (conn == NULL) {
syslog(LOG_ERR, "qb_ipcc_connect error\n");
return(-1);
}
snprintf(request.message, SMON_MAX_MSGSIZE, "%s", SMON_GET_RESULT_COMMAND);
request.hdr.id = 0;
request.hdr.size = sizeof(struct storage_mon_check_value_req);
response.hdr.id = 0;
rc = qb_ipcc_send(conn, &request, request.hdr.size);
if (rc < 0) {
syslog(LOG_ERR, "qb_ipcc_send error : %d\n", rc);
return(-1);
}
if (rc > 0) {
rc = qb_ipcc_recv(conn, &response, sizeof(response), -1);
if (rc < 0) {
syslog(LOG_ERR, "qb_ipcc_recv error : %d\n", rc);
return(-1);
}
}
qb_ipcc_disconnect(conn);
/* Set score to result */
/* 0 : Normal. */
/* greater than 0 : monitoring error. */
/* -1 : communication system error. */
/* -2 : Not all checks completed for first device in daemon mode. */
if (strnlen(response.message, 1)) {
rc = atoi(response.message);
} else {
rc = -1;
}
syslog(LOG_DEBUG, "daemon response[%d]: %s \n", response.hdr.id, response.message);
return(rc);
}
static int32_t
storage_mon_daemon(int interval, const char *pidfile)
{
int32_t rc;
char ipcs_name[SMON_MAX_IPCSNAME];
struct qb_ipcs_service_handlers service_handle = {
.connection_accept = storage_mon_ipcs_connection_accept_fn,
.connection_created = storage_mon_ipcs_connection_created_fn,
.msg_process = storage_mon_ipcs_msg_process_fn,
.connection_destroyed = storage_mon_ipcs_connection_destroyed_fn,
.connection_closed = storage_mon_ipcs_connection_closed_fn,
};
struct qb_ipcs_poll_handlers poll_handle = {
.job_add = storage_mon_job_add,
.dispatch_add = storage_mon_dispatch_add,
.dispatch_mod = storage_mon_dispatch_mod,
.dispatch_del = storage_mon_dispatch_del,
};
if (daemon(0, 0) < 0) {
syslog(LOG_ERR, "Failed to daemonize: %s", strerror(errno));
return -1;
}
umask(S_IWGRP | S_IWOTH | S_IROTH);
if (write_pid_file(pidfile) < 0) {
return -1;
}
snprintf(ipcs_name, SMON_MAX_IPCSNAME, "storage_mon_%s", attrname);
ipcs = qb_ipcs_create(ipcs_name, 0, QB_IPC_NATIVE, &service_handle);
if (ipcs == 0) {
syslog(LOG_ERR, "qb_ipcs_create");
return -1;
}
qb_ipcs_enforce_buffer_size(ipcs, SMON_BUFF_1MEG);
storage_mon_poll_handle = qb_loop_create();
qb_ipcs_poll_handlers_set(ipcs, &poll_handle);
rc = qb_ipcs_run(ipcs);
if (rc != 0) {
errno = -rc;
syslog(LOG_ERR, "qb_ipcs_run");
return -1;
}
qb_loop_signal_add(storage_mon_poll_handle, QB_LOOP_HIGH,
SIGTERM, NULL, sigterm_handler, NULL);
qb_loop_signal_add(storage_mon_poll_handle, QB_LOOP_MED,
SIGCHLD, NULL, sigchld_handler, NULL);
timer_d.interval = interval;
qb_loop_timer_add(storage_mon_poll_handle, QB_LOOP_MED, 0, &timer_d, wrap_test_device_main, &timer_handle);
qb_loop_run(storage_mon_poll_handle);
qb_loop_destroy(storage_mon_poll_handle);
unlink(pidfile);
return 0;
}
int main(int argc, char *argv[])
{
size_t score_count = 0;
int opt, option_index;
int interval = DEFAULT_INTERVAL;
const char *pidfile = DEFAULT_PIDFILE;
gboolean client = FALSE;
struct option long_options[] = {
{"timeout", required_argument, 0, 't' },
{"device", required_argument, 0, 'd' },
{"score", required_argument, 0, 's' },
{"inject-errors-percent", required_argument, 0, 0 },
{"daemonize", no_argument, 0, 0 },
{"client", no_argument, 0, 0 },
{"interval", required_argument, 0, 'i' },
{"pidfile", required_argument, 0, 'p' },
{"attrname", required_argument, 0, 'a' },
{"verbose", no_argument, 0, 'v' },
{"help", no_argument, 0, 'h' },
{0, 0, 0, 0 }
};
while ( (opt = getopt_long(argc, argv, "hvt:d:s:i:p:a:",
long_options, &option_index)) != -1 ) {
switch (opt) {
case 0: /* Long-only options */
if (strcmp(long_options[option_index].name, "inject-errors-percent") == 0) {
inject_error_percent = atoi(optarg);
if (inject_error_percent < 1 || inject_error_percent > 100) {
fprintf(stderr, "inject_error_percent should be between 1 and 100\n");
return -1;
}
}
if (strcmp(long_options[option_index].name, "daemonize") == 0) {
daemonize = TRUE;
}
if (strcmp(long_options[option_index].name, "client") == 0) {
client = TRUE;
}
if (daemonize && client) {
fprintf(stderr,"The daemonize option and client option cannot be specified at the same time.");
return -1;
}
break;
case 'd':
if (device_count < MAX_DEVICES) {
devices[device_count++] = strdup(optarg);
} else {
fprintf(stderr, "too many devices, max is %d\n", MAX_DEVICES);
return -1;
}
break;
case 's':
if (score_count < MAX_DEVICES) {
int score = atoi(optarg);
if (score < 1 || score > 10) {
fprintf(stderr, "Score must be between 1 and 10 inclusive\n");
return -1;
}
scores[score_count++] = score;
} else {
fprintf(stderr, "too many scores, max is %d\n", MAX_DEVICES);
return -1;
}
break;
case 'v':
verbose++;
break;
case 't':
timeout = atoi(optarg);
if (timeout < 1) {
fprintf(stderr, "invalid timeout %d. Min 1, recommended %d (default)\n", timeout, DEFAULT_TIMEOUT);
return -1;
}
break;
case 'h':
usage(argv[0], stdout);
return 0;
break;
case 'i':
interval = atoi(optarg);
if (interval < 1) {
fprintf(stderr, "invalid interval %d. Min 1, default is %d\n", interval, DEFAULT_INTERVAL);
return -1;
}
break;
case 'p':
pidfile = strdup(optarg);
if (pidfile == NULL) {
fprintf(stderr, "Failed to duplicate string ['%s']\n", optarg);
return -1;
}
break;
case 'a':
attrname = strdup(optarg);
if (attrname == NULL) {
fprintf(stderr, "Failed to duplicate string ['%s']\n", optarg);
return -1;
}
break;
default:
usage(argv[0], stderr);
return -1;
break;
}
}
if (client) {
return(storage_mon_client());
}
if (device_count == 0) {
fprintf(stderr, "No devices to test, use the -d or --device argument\n");
return -1;
}
if (device_count != score_count) {
fprintf(stderr, "There must be the same number of devices and scores\n");
return -1;
}
openlog("storage_mon", 0, LOG_DAEMON);
if (!daemonize) {
final_score = test_device_main(NULL);
} else {
return(storage_mon_daemon(interval, pidfile));
}
return final_score;
}

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