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/*
* Copyright (C) 2000-2003 the xine project
*
* This file is part of xine, a free video player.
*
* xine is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* xine 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 General Public License for more details.
*
* You should have received a copy of the GNU 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
*
* $Id: scratch.c,v 1.24 2007/01/19 00:12:22 dgp85 Exp $
*
* top-level xine functions
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <stdio.h>
#include <stdarg.h>
#include <string.h> /* For memset */
#define LOG_MODULE "scratch"
#define LOG_VERBOSE
/*
#define LOG
*/
#include "xineutils.h"
#include "scratch.h"
static void __attribute__((__format__(__printf__, 2, 0)))
scratch_printf (scratch_buffer_t *this, const char *format, va_list argp)
{
time_t t;
struct tm tm;
size_t l;
pthread_mutex_lock (&this->lock);
time (&t);
localtime_r (&t, &tm);
if ( ! this->lines[this->cur] )
this->lines[this->cur] = xine_xmalloc(SCRATCH_LINE_LEN_MAX+1);
if ( ! this->lines[this->cur] )
return;
strftime (this->lines[this->cur], SCRATCH_LINE_LEN_MAX, "%X: ", &tm);
l = strlen (this->lines[this->cur]);
vsnprintf (this->lines[this->cur] + l, SCRATCH_LINE_LEN_MAX - l, format, argp);
lprintf ("printing format %s to line %d\n", format, this->cur);
this->cur = (this->cur + 1) % this->num_lines;
pthread_mutex_unlock (&this->lock);
}
static char **scratch_get_content (scratch_buffer_t *this) {
int i, j;
pthread_mutex_lock (&this->lock);
for(i = 0, j = (this->cur - 1); i < this->num_lines; i++, j--) {
if(j < 0)
j = (this->num_lines - 1);
free (this->ordered[i]);
this->ordered[i] = this->lines[j] ? strdup (this->lines[j]) : NULL;
lprintf ("line %d contains >%s<\n", i , this->lines[j]);
}
pthread_mutex_unlock (&this->lock);
return this->ordered;
}
static void scratch_dispose (scratch_buffer_t *this) {
int i;
pthread_mutex_lock (&this->lock);
for(i = 0; i < this->num_lines; i++ ) {
free(this->ordered[i]);
free(this->lines[i]);
}
free (this->lines);
free (this->ordered);
pthread_mutex_unlock (&this->lock);
pthread_mutex_destroy (&this->lock);
free (this);
}
scratch_buffer_t *_x_new_scratch_buffer (int num_lines) {
scratch_buffer_t *this;
int i;
this = xine_xmalloc (sizeof (scratch_buffer_t));
this->lines = xine_xmalloc (sizeof (char *) * (num_lines + 1));
this->ordered = xine_xmalloc (sizeof (char *) * (num_lines + 1));
for (i = 0; i <= num_lines; i++)
this->lines[i] = this->ordered[i] = NULL;
this->scratch_printf = scratch_printf;
this->get_content = scratch_get_content;
this->dispose = scratch_dispose;
this->num_lines = num_lines;
this->cur = 0;
pthread_mutex_init (&this->lock, NULL);
return this;
}
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