gstreamer/gst/gsttrace.c
David I. Lehn a164187503 - basic arch check for HAVE_RDTSC
Original commit message from CVS:
- basic arch check for HAVE_RDTSC
- use common gst_trace_read_tsc() for RDTSC call
- add untested function to do ascii dump of trace data
2001-05-16 05:04:44 +00:00

132 lines
3.3 KiB
C

/* GStreamer
* Copyright (C) 1999,2000 Erik Walthinsen <omega@cse.ogi.edu>
* 2000 Wim Taymans <wtay@chello.be>
*
* gsttrace.c: Tracing functions (depracated)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <string.h>
#include "gst_private.h"
#include "gsttrace.h"
__inline__ void read_tsc(guint64 *dst) {
#ifdef HAVE_RDTSC
guint64 tsc;
__asm__ __volatile__ ("rdtsc" : "=A" (tsc));
*dst = tsc;
#else
*dst = 0;
#endif
}
void gst_trace_read_tsc(guint64 *dst) {
read_tsc(dst);
}
GstTrace *_gst_trace_default = NULL;
gint _gst_trace_on = 1;
GstTrace *gst_trace_new(guchar *filename,gint size) {
GstTrace *trace = g_malloc(sizeof(GstTrace));
g_return_val_if_fail(trace != NULL,NULL);
trace->filename = g_strdup(filename);
g_print("opening '%s'\n",trace->filename);
trace->fd = open(trace->filename,O_RDWR|O_CREAT|O_TRUNC,S_IRUSR|S_IWUSR);
perror("opening trace file");
g_return_val_if_fail(trace->fd > 0,NULL);
trace->buf = g_malloc(size * sizeof(GstTraceEntry));
g_return_val_if_fail(trace->buf != NULL,NULL);
trace->bufsize = size;
trace->bufoffset = 0;
return trace;
}
void gst_trace_destroy(GstTrace *trace) {
g_return_if_fail(trace != NULL);
g_return_if_fail(trace->buf != NULL);
if (gst_trace_get_remaining(trace) > 0)
gst_trace_flush(trace);
close(trace->fd);
g_free(trace->buf);
g_free(trace);
}
void gst_trace_flush(GstTrace *trace) {
if (!trace) {
trace = _gst_trace_default;
if (!trace ) return;
}
write(trace->fd,trace->buf,trace->bufoffset * sizeof(GstTraceEntry));
trace->bufoffset = 0;
}
void gst_trace_text_flush(GstTrace *trace) {
int i;
const int strsize = 20+1 + 10+1 + 10+1 + 112+1 + 1;
char str[strsize];
if (!trace) {
trace = _gst_trace_default;
if (!trace ) return;
}
for (i=0; i<trace->bufoffset; i++) {
snprintf(str, strsize, "%20lld %10d %10d %s\n",
trace->buf[i].timestamp,
trace->buf[i].sequence,
trace->buf[i].data,
trace->buf[i].message);
write(trace->fd,str,strlen(str));
}
trace->bufoffset = 0;
}
void gst_trace_set_default(GstTrace *trace) {
g_return_if_fail(trace != NULL);
_gst_trace_default = trace;
}
void _gst_trace_add_entry(GstTrace *trace,guint32 seq,guint32 data,gchar *msg) {
GstTraceEntry *entry;
if (!trace) {
trace = _gst_trace_default;
if (!trace ) return;
}
entry = trace->buf + trace->bufoffset;
read_tsc(&(entry->timestamp));
entry->sequence = seq;
entry->data = data;
strncpy(entry->message,msg,112);
trace->bufoffset++;
gst_trace_flush(trace);
}