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/* Copyright (C) 2007-2008 The Android Open Source Project
**
** This software is licensed under the terms of the GNU General Public
** License version 2, as published by the Free Software Foundation, and
** may be copied, distributed, and modified under those terms.
**
** 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 General Public License for more details.
*/
#include "android/utils/debug.h"
#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
void
dprint( const char* format, ... )
{
va_list args;
va_start( args, format );
fprintf( stdout, "emulator: ");
vfprintf( stdout, format, args );
fprintf( stdout, "\n" );
va_end( args );
}
void
dprintn( const char* format, ... )
{
va_list args;
va_start( args, format );
vfprintf( stdout, format, args );
va_end( args );
}
void
dprintnv( const char* format, va_list args )
{
vfprintf( stdout, format, args );
}
void
dwarning( const char* format, ... )
{
va_list args;
va_start( args, format );
dprintn( "emulator: WARNING: " );
dprintnv( format, args );
dprintn( "\n" );
va_end( args );
}
void
derror( const char* format, ... )
{
va_list args;
va_start( args, format );
dprintn( "emulator: ERROR: " );
dprintnv( format, args );
dprintn( "\n" );
va_end( args );
}
/** STDOUT/STDERR REDIRECTION
**
** allows you to shut temporarily shutdown stdout/stderr
** this is useful to get rid of debug messages from ALSA and esd
** on Linux.
**/
static int stdio_disable_count;
static int stdio_save_out_fd;
static int stdio_save_err_fd;
#ifdef _WIN32
extern void
stdio_disable( void )
{
if (++stdio_disable_count == 1) {
int null_fd, out_fd, err_fd;
fflush(stdout);
out_fd = _fileno(stdout);
err_fd = _fileno(stderr);
stdio_save_out_fd = _dup(out_fd);
stdio_save_err_fd = _dup(err_fd);
null_fd = _open( "NUL", _O_WRONLY );
_dup2(null_fd, out_fd);
_dup2(null_fd, err_fd);
close(null_fd);
}
}
extern void
stdio_enable( void )
{
if (--stdio_disable_count == 0) {
int out_fd, err_fd;
fflush(stdout);
out_fd = _fileno(stdout);
err_fd = _fileno(stderr);
_dup2(stdio_save_out_fd, out_fd);
_dup2(stdio_save_err_fd, err_fd);
_close(stdio_save_out_fd);
_close(stdio_save_err_fd);
}
}
#else
extern void
stdio_disable( void )
{
if (++stdio_disable_count == 1) {
int null_fd, out_fd, err_fd;
fflush(stdout);
out_fd = fileno(stdout);
err_fd = fileno(stderr);
stdio_save_out_fd = dup(out_fd);
stdio_save_err_fd = dup(err_fd);
null_fd = open( "/dev/null", O_WRONLY );
dup2(null_fd, out_fd);
dup2(null_fd, err_fd);
close(null_fd);
}
}
extern void
stdio_enable( void )
{
if (--stdio_disable_count == 0) {
int out_fd, err_fd;
fflush(stdout);
out_fd = fileno(stdout);
err_fd = fileno(stderr);
dup2(stdio_save_out_fd, out_fd);
dup2(stdio_save_err_fd, err_fd);
close(stdio_save_out_fd);
close(stdio_save_err_fd);
}
}
#endif
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