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Output of queue log not started until logger reloaded.

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ASTERISK-15863 caused a regression with queue logging.  The output of the
queue log is not started until the logger configuration is reloaded.

* Queue log initialization is completely delayed until the first message
is posted to the queue log system.  Including the initial opening of the
queue log file.

* Fixed rotate_file() ROTATE strategy to give the file just rotated out to
the configured exec function after rotate.  Just like the other strategies.

* Fixed logger reload to always post the queue reload entry instead of
just if there is a queue log file.

* Refactored some code to eliminate some redundancy and to reduce stack
utilization.

(closes issue ASTERISK-17036)
JIRA SWP-2952
Reported by: Juan Carlos Valero
Patches:
      jira_asterisk_17036_v1.8.patch (license #5621) patch uploaded by rmudgett
Tested by: rmudgett

(closes issue ASTERISK-18208)
Reported by: Christian Pinedo

Review: https://reviewboard.asterisk.org/r/1333/


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.8@331461 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Richard Mudgett
2011-08-10 20:29:59 +00:00
parent 43a5273659
commit e6b7737ef6
1 changed files with 129 additions and 57 deletions
Download Patch File Download Diff File Expand all files Collapse all files

186
main/logger.c
View File

@@ -79,6 +79,7 @@ static char exec_after_rotate[256] = "";
static int filesize_reload_needed;
static unsigned int global_logmask = 0xFFFF;
static int queuelog_init;
static int logger_initialized;
static enum rotatestrategy {
SEQUENTIAL = 1 << 0, /* Original method - create a new file, in order */
@@ -397,11 +398,10 @@ static void init_logger_chain(int locked)
AST_RWLIST_INSERT_HEAD(&logchannels, chan, list);
global_logmask |= chan->logmask;
}
if (qlog) {
char tmp[4096];
fclose(qlog);
snprintf(tmp, sizeof(tmp), "%s/%s", ast_config_AST_LOG_DIR, queue_log_name);
qlog = fopen(tmp, "a");
qlog = NULL;
}
if (!locked) {
@@ -469,9 +469,25 @@ void ast_queue_log(const char *queuename, const char *callid, const char *agent,
int qlog_len;
char time_str[30];
if (!logger_initialized) {
/* You are too early. We are not open yet! */
return;
}
if (!queuelog_init) {
queuelog_init = 1;
logger_queue_init();
AST_RWLIST_WRLOCK(&logchannels);
if (!queuelog_init) {
/*
* We have delayed initializing the queue logging system so
* preloaded realtime modules can get up. We must initialize
* now since someone is trying to log something.
*/
logger_queue_init();
queuelog_init = 1;
AST_RWLIST_UNLOCK(&logchannels);
ast_queue_log("NONE", "NONE", "NONE", "QUEUESTART", "%s", "");
} else {
AST_RWLIST_UNLOCK(&logchannels);
}
}
if (ast_check_realtime("queue_log")) {
@@ -487,7 +503,8 @@ void ast_queue_log(const char *queuename, const char *callid, const char *agent,
);
AST_NONSTANDARD_APP_ARGS(args, qlog_msg, '|');
/* Ensure fields are large enough to receive data */
ast_realtime_require_field("queue_log", "data1", RQ_CHAR, strlen(S_OR(args.data[0], "")),
ast_realtime_require_field("queue_log",
"data1", RQ_CHAR, strlen(S_OR(args.data[0], "")),
"data2", RQ_CHAR, strlen(S_OR(args.data[1], "")),
"data3", RQ_CHAR, strlen(S_OR(args.data[2], "")),
"data4", RQ_CHAR, strlen(S_OR(args.data[3], "")),
@@ -609,6 +626,8 @@ static int rotate_file(const char *filename)
if (rename(filename, new)) {
fprintf(stderr, "Unable to rename file '%s' to '%s'\n", filename, new);
res = -1;
} else {
filename = new;
}
}
@@ -625,9 +644,77 @@ static int rotate_file(const char *filename)
return res;
}
/*!
* \internal
* \brief Start the realtime queue logging if configured.
*
* \retval TRUE if not to open queue log file.
*/
static int logger_queue_rt_start(void)
{
if (ast_check_realtime("queue_log")) {
if (!ast_realtime_require_field("queue_log",
"time", RQ_DATETIME, 26,
"data1", RQ_CHAR, 20,
"data2", RQ_CHAR, 20,
"data3", RQ_CHAR, 20,
"data4", RQ_CHAR, 20,
"data5", RQ_CHAR, 20,
SENTINEL)) {
logfiles.queue_adaptive_realtime = 1;
} else {
logfiles.queue_adaptive_realtime = 0;
}
if (!logfiles.queue_log_to_file) {
/* Don't open the log file. */
return 1;
}
}
return 0;
}
/*!
* \internal
* \brief Rotate the queue log file and restart.
*
* \param queue_rotate Log queue rotation mode.
*
* \note Assumes logchannels is write locked on entry.
*
* \retval 0 on success.
* \retval -1 on error.
*/
static int logger_queue_restart(int queue_rotate)
{
int res = 0;
char qfname[PATH_MAX];
if (logger_queue_rt_start()) {
return res;
}
snprintf(qfname, sizeof(qfname), "%s/%s", ast_config_AST_LOG_DIR, queue_log_name);
if (qlog) {
/* Just in case it was still open. */
fclose(qlog);
qlog = NULL;
}
if (queue_rotate) {
rotate_file(qfname);
}
/* Open the log file. */
qlog = fopen(qfname, "a");
if (!qlog) {
ast_log(LOG_ERROR, "Unable to create queue log: %s\n", strerror(errno));
res = -1;
}
return res;
}
static int reload_logger(int rotate)
{
char old[PATH_MAX] = "";
int queue_rotate = rotate;
struct logchannel *f;
int res = 0;
@@ -676,48 +763,16 @@ static int reload_logger(int rotate)
init_logger_chain(1 /* locked */);
ast_unload_realtime("queue_log");
if (logfiles.queue_log) {
do {
ast_unload_realtime("queue_log");
if (ast_check_realtime("queue_log")) {
if (!ast_realtime_require_field("queue_log",
"time", RQ_DATETIME, 26, "data1", RQ_CHAR, 20,
"data2", RQ_CHAR, 20, "data3", RQ_CHAR, 20,
"data4", RQ_CHAR, 20, "data5", RQ_CHAR, 20, SENTINEL)) {
logfiles.queue_adaptive_realtime = 1;
} else {
logfiles.queue_adaptive_realtime = 0;
}
if (!logfiles.queue_log_to_file) {
/* Skip the following section */
break;
}
}
if (qlog) {
fclose(qlog);
qlog = NULL;
}
snprintf(old, sizeof(old), "%s/%s", ast_config_AST_LOG_DIR, queue_log_name);
if (queue_rotate) {
rotate_file(old);
}
qlog = fopen(old, "a");
if (qlog) {
AST_RWLIST_UNLOCK(&logchannels);
ast_queue_log("NONE", "NONE", "NONE", "CONFIGRELOAD", "%s", "");
AST_RWLIST_WRLOCK(&logchannels);
ast_verb(1, "Asterisk Queue Logger restarted\n");
} else {
ast_log(LOG_ERROR, "Unable to create queue log: %s\n", strerror(errno));
res = -1;
}
} while (0);
res = logger_queue_restart(queue_rotate);
AST_RWLIST_UNLOCK(&logchannels);
ast_queue_log("NONE", "NONE", "NONE", "CONFIGRELOAD", "%s", "");
ast_verb(1, "Asterisk Queue Logger restarted\n");
} else {
AST_RWLIST_UNLOCK(&logchannels);
}
AST_RWLIST_UNLOCK(&logchannels);
return res;
}
@@ -1021,22 +1076,36 @@ static void *logger_thread(void *data)
return NULL;
}
/*!
* \internal
* \brief Initialize the logger queue.
*
* \note Assumes logchannels is write locked on entry.
*
* \return Nothing
*/
static void logger_queue_init(void)
{
/* Preloaded modules are up. */
ast_unload_realtime("queue_log");
if (logfiles.queue_log && ast_check_realtime("queue_log")) {
if (!ast_realtime_require_field("queue_log",
"time", RQ_DATETIME, 26, "data1", RQ_CHAR, 20,
"data2", RQ_CHAR, 20, "data3", RQ_CHAR, 20,
"data4", RQ_CHAR, 20, "data5", RQ_CHAR, 20, SENTINEL)) {
logfiles.queue_adaptive_realtime = 1;
} else {
logfiles.queue_adaptive_realtime = 0;
if (logfiles.queue_log) {
char qfname[PATH_MAX];
if (logger_queue_rt_start()) {
return;
}
/* Open the log file. */
snprintf(qfname, sizeof(qfname), "%s/%s", ast_config_AST_LOG_DIR,
queue_log_name);
if (qlog) {
/* Just in case it was already open. */
fclose(qlog);
}
qlog = fopen(qfname, "a");
if (!qlog) {
ast_log(LOG_ERROR, "Unable to create queue log: %s\n", strerror(errno));
}
}
ast_queue_log("NONE", "NONE", "NONE", "QUEUESTART", "%s", "");
}
int init_logger(void)
@@ -1058,6 +1127,7 @@ int init_logger(void)
/* create log channels */
init_logger_chain(0 /* locked */);
logger_initialized = 1;
return 0;
}
@@ -1066,6 +1136,8 @@ void close_logger(void)
{
struct logchannel *f = NULL;
logger_initialized = 0;
/* Stop logger thread */
AST_LIST_LOCK(&logmsgs);
close_logger_thread = 1;