libvips/libsrc/iofuncs/error.c

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/* @(#) error handling
* @(#)
* @(#) Usage:
* @(#) void im_errormsg(variable_list)
* @(#) (variable_list) is (format, arg1, arg2, ...)
* @(#) format, arg1, arg2, etc are the same as in fprintf
* @(#)
* Copyright: N. Dessipris
* Written on: 18/03/1991
* Updated on: 9/7/92 KM
* 20/12/2003 JC
* - i18n added, domain now separate arg
* 14/2/07
* - lock around error buffer changes
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* 20/2/08
* - lock around warnings and diagnostics too, why not
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*/
/*
This file is part of VIPS.
VIPS is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser 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
*/
/*
These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif /*HAVE_CONFIG_H*/
#include <vips/intl.h>
#include <stdio.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <vips/vips.h>
#include <vips/internal.h>
#include <vips/vbuf.h>
#include <vips/thread.h>
#ifdef OS_WIN32
#include <windows.h>
#include <lmerr.h>
#endif /*OS_WIN32*/
#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif /*WITH_DMALLOC*/
/* Make global array to keep the error message buffer.
*/
#define IM_MAX_ERROR (10240)
static char im_error_text[IM_MAX_ERROR] = "";
static VBuf im_error_buf =
IM_BUF_STATIC( im_error_text, IM_MAX_ERROR );
#define IM_DIAGNOSTICS "IM_DIAGNOSTICS"
#define IM_WARNING "IM_WARNING"
const char *
im_error_buffer( void )
{
const char *msg;
g_mutex_lock( im__global_lock );
msg = im_buf_all( &im_error_buf );
g_mutex_unlock( im__global_lock );
return( msg );
}
void
im_verror( const char *domain, const char *fmt, va_list ap )
{
g_mutex_lock( im__global_lock );
im_buf_appendf( &im_error_buf, "%s: ", domain );
im_buf_vappendf( &im_error_buf, fmt, ap );
im_buf_appends( &im_error_buf, "\n" );
g_mutex_unlock( im__global_lock );
}
void
im_error( const char *domain, const char *fmt, ... )
{
va_list ap;
va_start( ap, fmt );
im_verror( domain, fmt, ap );
va_end( ap );
}
void
im_verror_system( int err, const char *domain, const char *fmt, va_list ap )
{
im_verror( domain, fmt, ap );
#ifdef OS_WIN32
{
char *buf;
if( FormatMessageA(
FORMAT_MESSAGE_ALLOCATE_BUFFER |
FORMAT_MESSAGE_IGNORE_INSERTS |
FORMAT_MESSAGE_FROM_SYSTEM,
NULL,
err,
MAKELANGID( LANG_NEUTRAL, SUBLANG_DEFAULT ),
(LPSTR) &buf, 0, NULL ) ) {
im_error( _( "windows error" ), "%s", buf );
LocalFree( buf );
}
}
#else /*OS_WIN32*/
{
char *buf;
buf = g_locale_to_utf8( strerror( err ), -1, NULL, NULL, NULL );
im_error( _( "unix error" ), "%s", buf );
g_free( buf );
}
#endif /*OS_WIN32*/
}
void
im_error_system( int err, const char *domain, const char *fmt, ... )
{
va_list ap;
va_start( ap, fmt );
im_verror_system( err, domain, fmt, ap );
va_end( ap );
}
void
im_error_clear( void )
{
g_mutex_lock( im__global_lock );
im_buf_rewind( &im_error_buf );
g_mutex_unlock( im__global_lock );
}
void
im_vdiag( const char *domain, const char *fmt, va_list ap )
{
if( !g_getenv( IM_DIAGNOSTICS ) ) {
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g_mutex_lock( im__global_lock );
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(void) fprintf( stderr, _( "%s: " ), _( "vips diagnostic" ) );
(void) fprintf( stderr, _( "%s: " ), domain );
(void) vfprintf( stderr, fmt, ap );
(void) fprintf( stderr, "\n" );
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g_mutex_unlock( im__global_lock );
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}
}
void
im_diag( const char *domain, const char *fmt, ... )
{
va_list ap;
va_start( ap, fmt );
im_vdiag( domain, fmt, ap );
va_end( ap );
}
void
im_vwarn( const char *domain, const char *fmt, va_list ap )
{
if( !g_getenv( IM_WARNING ) ) {
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g_mutex_lock( im__global_lock );
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(void) fprintf( stderr, _( "%s: " ), _( "vips warning" ) );
(void) fprintf( stderr, _( "%s: " ), domain );
(void) vfprintf( stderr, fmt, ap );
(void) fprintf( stderr, "\n" );
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g_mutex_unlock( im__global_lock );
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}
}
void
im_warn( const char *domain, const char *fmt, ... )
{
va_list ap;
va_start( ap, fmt );
im_vwarn( domain, fmt, ap );
va_end( ap );
}
/* Compatibility with pre-7.10 ... can't portably do these as macros sadly.
*/
void
im_errormsg( const char *fmt, ... )
{
va_list ap;
va_start( ap, fmt );
im_verror( "untranslated", fmt, ap );
va_end( ap );
}
void
im_verrormsg( const char *fmt, va_list ap )
{
im_verror( "untranslated", fmt, ap );
}
void
im_errormsg_system( int err, const char *fmt, ... )
{
va_list ap;
va_start( ap, fmt );
im_verror_system( err, "untranslated", fmt, ap );
va_end( ap );
}
void
im_diagnostics( const char *fmt, ... )
{
va_list ap;
va_start( ap, fmt );
im_vdiag( "untranslated", fmt, ap );
va_end( ap );
}
void
im_warning( const char *fmt, ... )
{
va_list ap;
va_start( ap, fmt );
im_vwarn( "untranslated", fmt, ap );
va_end( ap );
}