115 lines
3.1 KiB
C
115 lines
3.1 KiB
C
/******************************************************************************
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libprozilla - a download accelerator library
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Copyright (C) 2001 Kalum Somaratna
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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******************************************************************************/
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/* Debugging routines. */
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/* $Id$ */
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#include "common.h"
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#include "misc.h"
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#include "prozilla.h"
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#include "debug.h"
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static pthread_mutex_t debug_mutex = PTHREAD_MUTEX_INITIALIZER;
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/******************************************************************************
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Initialises the debug system, deletes any prior debug.log file if present
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******************************************************************************/
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void debug_init()
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{
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proz_debug_delete_log();
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return;
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}
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void proz_debug_delete_log()
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{
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char logfile_name[PATH_MAX];
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snprintf(logfile_name, PATH_MAX, "%s/debug.log", libprozrtinfo.log_dir);
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if (unlink(logfile_name) == -1)
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{
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/*
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* if the file is not present the continue silently
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*/
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if (errno == ENOENT)
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return;
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else
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{
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proz_debug(_("unable to delete the file %s. Reason-: %s"),
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strerror(errno));
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}
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}
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}
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/******************************************************************************
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Write a message to the debug-file.
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******************************************************************************/
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void proz_debug(const char *format, ...)
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{
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FILE *fp;
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va_list args;
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char message[MAX_MSG_SIZE + 1 + 1];
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char logfile_name[PATH_MAX];
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snprintf(logfile_name, PATH_MAX, "%s/debug.log", libprozrtinfo.log_dir);
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pthread_mutex_lock(&debug_mutex);
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if (libprozrtinfo.debug_mode == TRUE)
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{
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va_start(args, format);
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vsnprintf((char *)&message, MAX_MSG_SIZE, format, args);
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va_end(args);
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/* Remove all newlines from the end of the string. */
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while ((message[strlen(message) - 1] == '\r')
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|| (message[strlen(message) - 1] == '\n'))
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message[strlen(message) - 1] = '\0';
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/* Append a newline. */
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message[strlen(message) + 1] = '\0';
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message[strlen(message)] = '\n';
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if (!(fp = fopen(logfile_name, "at")))
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{
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pthread_mutex_unlock(&debug_mutex);
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return;
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}
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if (fwrite(message, 1, strlen(message), fp) != strlen(message))
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{
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pthread_mutex_unlock(&debug_mutex);
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fclose(fp);
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return;
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}
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fclose(fp);
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}
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pthread_mutex_unlock(&debug_mutex);
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}
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