static void
s_once_proc(void) {
char *dbg_lvl_str = getenv("LAGOPUS_LOG_DEBUGLEVEL");
char *logfile = getenv("LAGOPUS_LOG_FILE");
uint16_t d = 0;
lagopus_log_destination_t log_dst = LAGOPUS_LOG_EMIT_TO_UNKNOWN;
if (IS_VALID_STRING(dbg_lvl_str) == true) {
uint16_t tmp = 0;
if (lagopus_str_parse_uint16(dbg_lvl_str, &tmp) == LAGOPUS_RESULT_OK) {
d = tmp;
}
}
if ((logfile = s_validate_path(logfile, s_is_valid_path)) != NULL) {
log_dst = LAGOPUS_LOG_EMIT_TO_FILE;
}
if (lagopus_log_initialize(log_dst, logfile, false, true, d) !=
LAGOPUS_RESULT_OK) {
lagopus_exit_error(1, "logger initialization error.\n");
}
if (d > 0) {
lagopus_msg_debug(d, "Logger debug level is set to: %d.\n", d);
}
#ifdef HAVE_PROCFS_SELF_EXE
if (readlink("/proc/self/exe", s_exefile, PATH_MAX) != -1) {
(void)lagopus_set_command_name(s_exefile);
lagopus_msg_debug(10, "set the command name '%s'.\n",
lagopus_get_command_name());
}
#endif /* HAVE_PROCFS_SELF_EXE */
}
static void
s_once_proc(void) {
char *dbg_lvl_str = getenv("LAGOPUS_LOG_DEBUGLEVEL");
char *logfile = getenv("LAGOPUS_LOG_FILE");
uint16_t d = 0;
lagopus_log_destination_t log_dst = LAGOPUS_LOG_EMIT_TO_UNKNOWN;
if (IS_VALID_STRING(dbg_lvl_str) == true) {
uint16_t tmp = 0;
if (lagopus_str_parse_uint16(dbg_lvl_str, &tmp) == LAGOPUS_RESULT_OK) {
d = tmp;
}
}
if ((logfile = s_validate_path(logfile, s_is_valid_path)) != NULL) {
log_dst = LAGOPUS_LOG_EMIT_TO_FILE;
}
if (lagopus_log_initialize(log_dst, logfile, false, true, d) !=
LAGOPUS_RESULT_OK) {
lagopus_exit_error(1, "logger initialization error.\n");
}
if (d > 0) {
lagopus_msg_debug(d, "Logger debug level is set to: %d.\n", d);
}
}
int
main(int argc, const char *const argv[]) {
lagopus_log_destination_t dst = LAGOPUS_LOG_EMIT_TO_UNKNOWN;
const char *logarg;
char *p;
uint16_t cur_debug_level = lagopus_log_get_debug_level();
int ipcfds[2];
ipcfds[0] = -1;
ipcfds[1] = -1;
s_progname = ((p = strrchr(argv[0], '/')) != NULL) ? ++p : argv[0];
parse_args(argc, argv);
if (IS_VALID_STRING(s_logfile) == true) {
dst = LAGOPUS_LOG_EMIT_TO_FILE;
logarg = s_logfile;
} else {
dst = LAGOPUS_LOG_EMIT_TO_SYSLOG;
logarg = s_progname;
}
/*
* If the cur_debug_level > 0 the debug level is set by the lagopus
* runtime so use it as is.
*/
(void)lagopus_log_initialize(dst, logarg, false, true,
(cur_debug_level > 0) ?
cur_debug_level : s_debug_level);
(void)lagopus_signal(SIGHUP, s_hup_handler, NULL);
(void)lagopus_signal(SIGINT, s_term_handler, NULL);
(void)lagopus_signal(SIGTERM, s_term_handler, NULL);
(void)lagopus_signal(SIGQUIT, s_term_handler, NULL);
if (s_debug_level == 0) {
pid_t pid = (pid_t)-1;
if (pipe(ipcfds) != 0) {
lagopus_perror(LAGOPUS_RESULT_POSIX_API_ERROR);
return 1;
}
pid = fork();
if (pid > 0) {
int exit_code;
ssize_t st;
(void)close(ipcfds[1]);
if ((st = read(ipcfds[0], (void *)&exit_code, sizeof(int))) !=
sizeof(int)) {
lagopus_perror(LAGOPUS_RESULT_POSIX_API_ERROR);
return 1;
}
return exit_code;
} else if (pid == 0) {
s_daemonize(ipcfds[1]);
if (lagopus_log_get_destination() == LAGOPUS_LOG_EMIT_TO_FILE) {
(void)lagopus_log_reinitialize();
}
} else {
lagopus_perror(LAGOPUS_RESULT_POSIX_API_ERROR);
lagopus_msg_error("can' be a daemon.\n");
return 1;
}
}
return s_do_main(argc, argv, ipcfds[1]);
}
int
main(int argc, const char *const argv[]) {
const char *nm = myname(argv[0]);
(void)argc;
lagopus_log_set_trace_flags(TRACE_OFPT_HELLO |
TRACE_OFPT_ERROR |
TRACE_OFPT_METER_MOD);
lagopus_msg("this should emitted to stderr.\n");
lagopus_msg_trace(TRACE_OFPT_HELLO, false, "hello test.\n");
lagopus_msg_trace(TRACE_OFPT_ERROR, false, "error test.\n");
lagopus_msg_trace(TRACE_OFPT_HELLO |
TRACE_OFPT_ERROR,
false, "hello|error test.\n");
/*
* log to stderr.
*/
if (IS_LAGOPUS_RESULT_OK(
lagopus_log_initialize(LAGOPUS_LOG_EMIT_TO_UNKNOWN, NULL,
false, true, 1)) == false) {
lagopus_msg_fatal("what's wrong??\n");
/* not reached. */
}
lagopus_dprint("debug to stderr.\n");
/*
* log to file.
*/
if (IS_LAGOPUS_RESULT_OK(
lagopus_log_initialize(LAGOPUS_LOG_EMIT_TO_FILE, "./testlog.txt",
false, true, 10)) == false) {
lagopus_msg_fatal("what's wrong??\n");
/* not reached. */
}
lagopus_dprint("debug to file.\n");
lagopus_msg_debug(5, "debug to file, again.\n");
lagopus_msg_trace(TRACE_OFPT_HELLO, false, "hello file test.\n");
lagopus_msg_trace(TRACE_OFPT_ERROR, false, "error file test.\n");
lagopus_msg_trace(TRACE_OFPT_HELLO |
TRACE_OFPT_ERROR,
false, "hello|error file test.\n");
if (IS_LAGOPUS_RESULT_OK(
lagopus_log_initialize(LAGOPUS_LOG_EMIT_TO_SYSLOG, nm,
false, false, 10)) == false) {
lagopus_msg_fatal("what's wrong??\n");
/* not reached. */
}
lagopus_msg_debug(5, "debug to syslog.\n");
lagopus_msg_trace(TRACE_OFPT_HELLO, false, "hello syslog test.\n");
lagopus_msg_trace(TRACE_OFPT_ERROR, false, "error syslog test.\n");
lagopus_msg_trace(TRACE_OFPT_HELLO |
TRACE_OFPT_ERROR,
false, "hello|error syslog test.\n");
/*
* log to stderr, again.
*/
if (IS_LAGOPUS_RESULT_OK(
lagopus_log_initialize(LAGOPUS_LOG_EMIT_TO_UNKNOWN, NULL,
false, true, 1)) == false) {
lagopus_msg_fatal("what's wrong??\n");
/* not reached. */
}
lagopus_dprint("will exit 1 ...\n");
lagopus_exit_error(1, "exit 1 on purpose.\n");
return 0;
}
