4c5873809f
rename as VipsConnection, VipsSource, VipsTarget etc. see https://github.com/libvips/libvips/issues/1494#issuecomment-569498619 renamed with this script: ``` set -e edit() { sed -i -E "$1" rename } for i in $*; do cp $i rename edit s/VIPS_STREAMOU/VIPS_TARGET_CUSTOM/g edit s/VIPS_STREAMO/VIPS_TARGET/g edit s/VIPS_STREAMIU/VIPS_SOURCE_CUSTOM/g edit s/VIPS_STREAMI/VIPS_SOURCE/g edit s/VIPS_STREAM/VIPS_CONNECTION/g edit s/vips_streamou/vips_target_custom/g edit s/vips_streamo/vips_target/g edit s/vips_streamiu/vips_source_custom/g edit s/vips_streami/vips_source/g edit s/vips_stream/vips_connection/g edit s/VipsStreamou/VipsTargetCustom/g edit s/VipsStreamo/VipsTarget/g edit s/VipsStreamiu/VipsSourceCustom/g edit s/VipsStreami/VipsSource/g edit s/VipsStream/VipsConnection/g # eg. VIPS_TYPE_STREAM or VIPS_IS_STREAM edit "s/VIPS_([A-Z]+)_STREAMOU/VIPS_\1_TARGET_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMO/VIPS_\1_TARGET/g" edit "s/VIPS_([A-Z]+)_STREAMIU/VIPS_\1_SOURCE_CUSTOM/g" edit "s/VIPS_([A-Z]+)_STREAMI/VIPS_\1_SOURCE/g" edit "s/VIPS_([A-Z]+)_STREAM/VIPS_\1_CONNECTION/g" edit s/streamou/target_custom/g edit s/streamo/target/g edit s/streamiu/source_custom/g edit s/streami/source/g # various identifiers which also change edit s/is_a_stream/is_a_source/g edit s/find_load_stream/find_load_source/g edit s/find_save_stream/find_save_target/g edit s/new_from_stream/new_from_source/g edit s/write_to_stream/write_to_target/g edit s/vips_thumbnail_stream/vips_thumbnail_source/g # eg. vips_webpload_stream edit "s/vips_([a-z]+)load_stream/vips_\1load_source/g" # eg. vips_webpsave_stream edit "s/vips_([a-z]+)save_stream/vips_\1save_target/g" mv rename $i done ```
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
/* Read an image and check that file handles are being closed on minimise.
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*
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* This will only work on linux: we signal success and do nothing if /dev/proc
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* does not exist.
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*/
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#include <sys/types.h>
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#include <unistd.h>
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#include <vips/vips.h>
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/* Count the number of files in a directory, -1 for directory not found etc.
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*/
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static int
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count_files( const char *dirname )
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{
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GDir *dir;
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int n;
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if( !(dir = g_dir_open( dirname, 0, NULL )) )
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return( -1 );
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for( n = 0; g_dir_read_name( dir ); n++ )
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;
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g_dir_close( dir );
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return( n );
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}
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int
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main( int argc, char **argv )
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{
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VipsSource *source;
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VipsImage *image, *x;
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char fd_dir[256];
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int n_files;
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double average;
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if( VIPS_INIT( argv[0] ) )
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vips_error_exit( "unable to start" );
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if( argc != 2 )
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vips_error_exit( "usage: %s test-image", argv[0] );
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vips_snprintf( fd_dir, 256, "/proc/%d/fd", getpid() );
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n_files = count_files( fd_dir );
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if( n_files == -1 )
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/* Probably not linux, silent success.
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*/
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return( 0 );
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/* This is usually 4. stdout / stdin / stderr plus one more made for
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* us by glib, I think, doing what I don't know.
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*/
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/* Opening an image should read the header, then close the fd.
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*/
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printf( "** seq open ..\n" );
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if( !(source = vips_source_new_from_file( argv[1] )) )
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vips_error_exit( NULL );
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if( !(image = vips_image_new_from_source( source, "",
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"access", VIPS_ACCESS_SEQUENTIAL,
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NULL )) )
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vips_error_exit( NULL );
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if( count_files( fd_dir ) != n_files )
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vips_error_exit( "%s: fd not closed after header read",
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argv[1] );
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/* We should be able to read a chunk near the top, then have the fd
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* closed again.
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*/
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printf( "** crop1, avg ..\n" );
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if( vips_crop( image, &x, 0, 0, image->Xsize, 10, NULL ) ||
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vips_avg( x, &average, NULL ) )
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vips_error_exit( NULL );
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g_object_unref( x );
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if( count_files( fd_dir ) != n_files )
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vips_error_exit( "%s: fd not closed after first read",
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argv[1] );
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/* We should be able to read again, a little further down, and have
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* the input restarted and closed again.
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*/
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printf( "** crop2, avg ..\n" );
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if( vips_crop( image, &x, 0, 20, image->Xsize, 10, NULL ) ||
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vips_avg( x, &average, NULL ) )
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vips_error_exit( NULL );
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g_object_unref( x );
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if( count_files( fd_dir ) != n_files )
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vips_error_exit( "%s: fd not closed after second read",
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argv[1] );
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/* Clean up, and we should still just have three open.
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*/
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printf( "** unref ..\n" );
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g_object_unref( image );
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g_object_unref( source );
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printf( "** shutdown ..\n" );
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vips_shutdown();
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if( count_files( fd_dir ) != n_files )
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vips_error_exit( "%s: fd not closed after shutdown",
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argv[1] );
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return( 0 );
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}
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