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Syslog ident must be provided explicitly.

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The syslog ident must be provided explicitly when calling
skygw_logmanager_init (and not provided via the argv array).
It can be NULL, in which case it automatically will be the program
name.

The openlog() call is now always made, irrespective of what the
value of the global syslog flag is. That way it will be possible
to turn syslog logging on or off after the fact.
This commit is contained in:
Johan Wikman
2015-11-10 10:17:42 +02:00
parent 55dbaa49c0
commit 24bed47794
11 changed files with 56 additions and 77 deletions
Download Patch File Download Diff File Expand all files Collapse all files

70
log_manager/log_manager.cc
View File

@ -91,8 +91,7 @@ ssize_t log_ses_count[LOGFILE_LAST] = {0};
const char* shm_pathname_prefix = "/dev/shm/";
/** Errors are written to syslog too by default */
char* syslog_id_str = strdup("LOGFILE_ERROR");
char* syslog_ident_str = NULL;
char* syslog_id_str = strdup("LOGFILE_ERROR");
/** Forward declarations
*/
@ -273,7 +272,10 @@ static void* thr_filewriter_fun(void* data);
static logfile_t* logmanager_get_logfile(logmanager_t* lm);
static bool logmanager_register(bool writep);
static void logmanager_unregister(void);
static bool logmanager_init_nomutex(const char* logdir, log_target_t target, int argc, char* argv[]);
static bool logmanager_init_nomutex(const char* ident,
const char* logdir,
log_target_t target,
int argc, char* argv[]);
static void logmanager_done_nomutex(void);
static bool logmanager_is_valid_id(logfile_id_t id);
@ -304,7 +306,10 @@ static int find_last_seqno(strpart_t* parts, int seqno, int seqnoidx);
void flushall_logfiles(bool flush);
bool thr_flushall_check();
static bool logmanager_init_nomutex(const char* logdir, log_target_t target, int argc, char* argv[])
static bool logmanager_init_nomutex(const char* ident,
const char* logdir,
log_target_t target,
int argc, char* argv[])
{
fnames_conf_t* fn;
filewriter_t* fw;
@ -345,11 +350,9 @@ static bool logmanager_init_nomutex(const char* logdir, log_target_t target, int
fn->fn_state = UNINIT;
fw->fwr_state = UNINIT;
if (!do_syslog)
{
free(syslog_id_str);
syslog_id_str = NULL;
}
// The openlog call is always made, but a connection to the system logger will
// not be made until a call to syslog is made.
openlog(ident, LOG_PID | LOG_ODELAY, LOG_USER);
/** Initialize configuration including log file naming info */
if (!fnames_conf_init(fn, logdir, argc, argv))
@ -414,6 +417,7 @@ return_succp:
/**
* Initializes log managing routines in MariaDB Corporation MaxScale.
*
* @param ident The syslog ident. If NULL, then the program name is used.
* @param logdir The directory for the log file. If NULL logging will be made to stdout.
* @param target Whether the log should be written to filesystem or shared memory.
* Meaningless if logdir is NULL.
@ -423,7 +427,10 @@ return_succp:
* @return true if succeed, otherwise false
*
*/
bool skygw_logmanager_init(const char* logdir, log_target_t target, int argc, char* argv[])
bool skygw_logmanager_init(const char* ident,
const char* logdir,
log_target_t target,
int argc, char* argv[])
{
bool succp = false;
@ -435,7 +442,7 @@ bool skygw_logmanager_init(const char* logdir, log_target_t target, int argc, ch
goto return_succp;
}
succp = logmanager_init_nomutex(logdir, target, argc, argv);
succp = logmanager_init_nomutex(ident, logdir, target, argc, argv);
return_succp:
release_lock(&lmlock);
@ -474,10 +481,8 @@ static void logmanager_done_nomutex(void)
/** Release logfile memory */
logfile_done(lf);
if (syslog_id_str)
{
closelog();
}
closelog();
/** Release messages and finally logmanager memory */
fnames_conf_done(&lm->lm_fnames_conf);
skygw_message_done(lm->lm_clientmes);
@ -1623,7 +1628,7 @@ static bool logmanager_register(bool writep)
// If someone is logging before the log manager has been inited,
// or after the log manager has been finished, the messages are
// written to stdout.
succp = logmanager_init_nomutex(NULL, LOG_TARGET_DEFAULT, 0, NULL);
succp = logmanager_init_nomutex(NULL, NULL, LOG_TARGET_DEFAULT, 0, NULL);
}
}
/** if logmanager existed or was succesfully restarted, increase link */
@ -1689,8 +1694,7 @@ static bool fnames_conf_init(fnames_conf_t* fn,
bool succp = false;
const char* argstr =
"-h - help\n"
"-l <syslog log file ids> .......(no default)\n"
"-m <syslog ident> ............(argv[0])\n";
"-l <syslog log file ids> .......(no default)\n";
/**
* When init_started is set, clean must be done for it.
@ -1702,7 +1706,7 @@ static bool fnames_conf_init(fnames_conf_t* fn,
#endif
optind = 1; /**<! reset getopt index */
while ((opt = getopt(argc, argv, "+h:l:m:")) != -1)
while ((opt = getopt(argc, argv, "+h:l:")) != -1)
{
switch (opt)
{
@ -1718,14 +1722,6 @@ static bool fnames_conf_init(fnames_conf_t* fn,
}
break;
case 'm':
/**
* Identity string for syslog printing, needs '-l'
* to be effective.
*/
syslog_ident_str = optarg;
break;
case 'h':
default:
fprintf(stderr, "\nSupported arguments are (default)\n%s\n", argstr);
@ -1745,20 +1741,6 @@ static bool fnames_conf_init(fnames_conf_t* fn,
fn->fn_logpath = strdup("/tmp"); // Not used.
}
/** Set identity string for syslog if it is not set in config.*/
if (do_syslog)
{
syslog_ident_str =
(syslog_ident_str == NULL ?
(argv == NULL ? strdup(program_invocation_short_name) : strdup(*argv)) :
syslog_ident_str);
}
/* ss_dfprintf(stderr, "\n\n\tCommand line : ");
for (i = 0; i < argc; i++)
{
ss_dfprintf(stderr, "%s ", argv[i]);
}
ss_dfprintf(stderr, "\n");*/
#if defined(NOT_USED)
fprintf(stderr,
"Log :\t%s/%s1%s\n\n",
@ -1804,12 +1786,6 @@ static bool logfiles_init(logmanager_t* lm)
bool store_shmem = (lm->lm_target == LOG_TARGET_SHMEM);
bool write_syslog;
/** Open syslog immediately. Print pid of loggind process. */
if (syslog_id_str != NULL)
{
openlog(syslog_ident_str, LOG_PID | LOG_NDELAY, LOG_USER);
}
/**
* Check if file is also written to syslog.
*/