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/*
Copyright (C) 2001 Paul Davis
Copyright (C) 2004-2008 Grame
Copyright (C) 2008 Nedko Arnaudov
This program 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 2.1 of the License, or
(at your option) any later version.
This program 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 program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include <stdarg.h>
#include <stdio.h>
#include "JackError.h"
#include "JackGlobals.h"
#include "JackMessageBuffer.h"
using namespace Jack;
static bool change_thread_log_function(jack_log_function_t log_function)
{
return (jack_tls_get(JackGlobals::fKeyLogFunction) == NULL
&& jack_tls_set(JackGlobals::fKeyLogFunction, (void*)log_function));
}
SERVER_EXPORT int set_threaded_log_function()
{
return change_thread_log_function(JackMessageBufferAdd);
}
void jack_log_function(int level, const char *message)
{
void (* log_callback)(const char *);
switch (level)
{
case LOG_LEVEL_INFO:
log_callback = jack_info_callback;
break;
case LOG_LEVEL_ERROR:
log_callback = jack_error_callback;
break;
default:
return;
}
log_callback(message);
}
static void jack_format_and_log(int level, const char *prefix, const char *fmt, va_list ap)
{
char buffer[256];
size_t len;
jack_log_function_t log_function;
if (prefix != NULL) {
len = strlen(prefix);
assert(len < 256);
memcpy(buffer, prefix, len);
} else {
len = 0;
}
vsnprintf(buffer + len, sizeof(buffer) - len, fmt, ap);
log_function = (jack_log_function_t)jack_tls_get(JackGlobals::fKeyLogFunction);
/* if log function is not overridden for thread, use default one */
if (log_function == NULL)
{
log_function = jack_log_function;
//log_function(LOG_LEVEL_INFO, "------ Using default log function");
}
else
{
//log_function(LOG_LEVEL_INFO, "++++++ Using thread-specific log function");
}
log_function(level, buffer);
}
SERVER_EXPORT void jack_error(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
jack_format_and_log(LOG_LEVEL_ERROR, NULL, fmt, ap);
va_end(ap);
}
SERVER_EXPORT void jack_info(const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
jack_format_and_log(LOG_LEVEL_INFO, NULL, fmt, ap);
va_end(ap);
}
SERVER_EXPORT void jack_log(const char *fmt,...)
{
if (JackGlobals::fVerbose) {
va_list ap;
va_start(ap, fmt);
jack_format_and_log(LOG_LEVEL_INFO, "Jack: ", fmt, ap);
va_end(ap);
}
}
SERVER_EXPORT void default_jack_error_callback(const char *desc)
{
fprintf(stderr, "%s\n", desc);
fflush(stderr);
}
SERVER_EXPORT void default_jack_info_callback(const char *desc)
{
fprintf(stdout, "%s\n", desc);
fflush(stdout);
}
SERVER_EXPORT void silent_jack_error_callback(const char *desc)
{}
SERVER_EXPORT void silent_jack_info_callback(const char *desc)
{}
SERVER_EXPORT void (*jack_error_callback)(const char *desc) = &default_jack_error_callback;
SERVER_EXPORT void (*jack_info_callback)(const char *desc) = &default_jack_info_callback;
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