Files
libva-v4l2-request-fourier/src/utils.c
T
test0r ac674b84ec src/utils.c: tee request_log() to /tmp/libva-fourier.log
Sandboxed processes (Chromium GPU process etc.) redirect stderr, so
request_log() output never reaches our test harness. Add a lazy-open
append to /tmp/libva-fourier.log so we can capture diagnostic logging
regardless of process sandboxing.

Will revert before final.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-04-25 21:59:57 +00:00

57 lines
2.0 KiB
C

/*
* Copyright (C) 2016 Florent Revest <florent.revest@free-electrons.com>
* Copyright (C) 2018 Paul Kocialkowski <paul.kocialkowski@bootlin.com>
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include "request.h"
#include "utils.h"
void request_log(const char *format, ...)
{
va_list arguments;
static FILE *trace_fp;
fprintf(stderr, "%s: ", V4L2_REQUEST_STR_VENDOR);
va_start(arguments, format);
vfprintf(stderr, format, arguments);
va_end(arguments);
/* Fourier-local: also tee to /tmp/libva-fourier.log so messages are
* visible from sandboxed GPU processes (Chromium etc.) where stderr
* is redirected. Append-mode, lazy-open. */
if (trace_fp == NULL)
trace_fp = fopen("/tmp/libva-fourier.log", "a");
if (trace_fp != NULL) {
fprintf(trace_fp, "%s: ", V4L2_REQUEST_STR_VENDOR);
va_start(arguments, format);
vfprintf(trace_fp, format, arguments);
va_end(arguments);
fflush(trace_fp);
}
}