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/*
* Copyright © 2011 Intel Corp.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Authored by: Rob Staudinger <robsta@linux.intel.com>
*/
#include "config.h"
#include <stdio.h>
#include <string.h>
#include <glib.h>
#include "ytstenut-internal.h"
#undef G_LOG_DOMAIN
#define G_LOG_DOMAIN PACKAGE"\0main\0"G_STRLOC
static const GDebugKey _debug_keys[] = {
{ "brief", YTS_DEBUG_BRIEF }, /* Brief debug output. */
{ "client", YTS_DEBUG_CLIENT },
{ "contact", YTS_DEBUG_CONTACT },
{ "file-transfer", YTS_DEBUG_FILE_TRANSFER },
{ "main", YTS_DEBUG_MAIN },
{ "proxy", YTS_DEBUG_PROXY },
{ "proxy-service", YTS_DEBUG_PROXY_SERVICE },
{ "roster", YTS_DEBUG_ROSTER },
{ "service-adapter", YTS_DEBUG_SERVICE_ADAPTER },
{ "service", YTS_DEBUG_SERVICE },
{ "telepathy", YTS_DEBUG_TELEPATHY },
{ "unspecified", YTS_DEBUG_UNSPECIFIED }
};
static YtsDebugFlags _debug_flags = 0;
static void
log_brief (GLogLevelFlags log_level,
char const *context,
char const *message)
{
char const *level;
if (G_LOG_LEVEL_ERROR & log_level)
level = "error";
else if (G_LOG_LEVEL_CRITICAL & log_level)
level = "critical";
else if (G_LOG_LEVEL_WARNING & log_level)
level = "warning";
else if (G_LOG_LEVEL_MESSAGE & log_level)
level = "message";
else if (G_LOG_LEVEL_INFO & log_level)
level = "info";
else if (G_LOG_LEVEL_DEBUG & log_level)
level = "debug";
else
level = "unknown";
fprintf (stderr, "%s: %s: %s\n", context, level, message);
}
static void
log_default (char const *log_domain,
GLogLevelFlags log_level,
char const *topic,
char const *location,
char const *message_)
{
char *message;
/* Prepend context to message. */
if (location) {
message = g_strdup_printf ("%s: %s", location, message_);
} else {
message = g_strdup_printf ("%s: %s", topic, message_);
}
g_log_default_handler (log_domain, log_level, message, NULL);
g_free (message);
}
static void
_log_handler (char const *log_domain,
GLogLevelFlags log_level,
char const *message,
gpointer user_data)
{
char const *topic;
char const *location = NULL;
unsigned topic_flag = 0;
/* A bit of a hack, the domain has the format "ytstenut\0topic",
* so look what's past the \0 for the topic. */
topic = &log_domain[strlen (log_domain) + 1];
if (0 != g_strcmp0 ("unspecified", topic)) {
location = &topic[strlen (topic) + 1];
if (location[0] == '.' && location[1] == '/')
location += 2;
}
if (_debug_flags) {
/* == We are in debug mode. == */
for (unsigned i = 1; i < G_N_ELEMENTS (_debug_keys); i++) {
if (0 == g_strcmp0 (topic, _debug_keys[i].key)) {
topic_flag = _debug_keys[i].value;
break;
}
}
if (_debug_flags & topic_flag) {
if (YTS_DEBUG_BRIEF & _debug_flags) {
log_brief (log_level,
location ? location : topic,
message);
} else {
log_default (log_domain, log_level, topic, location, message);
}
}
} else {
/* == Not in debug mode ==
* Only print debug messages (there should not be any in a tarball release),
* and exceptions. */
GLogLevelFlags log_mask = G_LOG_LEVEL_ERROR |
G_LOG_LEVEL_CRITICAL |
G_LOG_LEVEL_WARNING |
G_LOG_LEVEL_DEBUG;
if (log_level & log_mask) {
log_default (log_domain, log_level, topic, location, message);
}
}
}
bool
ytstenut_init (void)
{
static bool is_initialized = false;
char const *yts_debug;
if (is_initialized) {
g_warning ("%s: library already initialized.", G_STRLOC);
return false;
}
yts_debug = g_getenv ("YTS_DEBUG");
if (yts_debug) {
_debug_flags = g_parse_debug_string (yts_debug,
_debug_keys,
G_N_ELEMENTS (_debug_keys));
}
g_log_set_handler (PACKAGE, G_LOG_LEVEL_MASK, _log_handler, NULL);
is_initialized = true;
return true;
}
YtsDebugFlags
ytstenut_get_debug_flags (void)
{
return _debug_flags;
}
#if 0
/* This is just for testing the above code standalone. */
int
main (int argc,
char **argv)
{
ytstenut_init ();
g_warning ("foo");
printf ("=== %s\n", FOO_LOG_DOMAIN);
return 0;
}
#endif
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