104 lines
2.6 KiB
C
104 lines
2.6 KiB
C
/* A dynamic memory buffer that expands as you write.
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*/
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/*
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This file is part of VIPS.
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VIPS is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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02110-1301 USA
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*/
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/*
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These files are distributed with VIPS - http://www.vips.ecs.soton.ac.uk
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*/
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#ifndef VIPS_DBUF_H
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#define VIPS_DBUF_H
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#ifdef __cplusplus
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extern "C" {
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#endif /*__cplusplus*/
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#include <vips/vips.h>
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/* A buffer in the process of being written to.
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*/
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typedef struct _VipsDbuf {
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/* All fields are private.
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*/
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/*< private >*/
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/* The current base, and the size of the allocated memory area.
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*/
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unsigned char *data;
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size_t allocated_size;
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/* The size of the actual data that's been written. This will usually
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* be <= allocated_size, but always >= write_point.
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*/
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size_t data_size;
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/* The write point.
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*/
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size_t write_point;
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} VipsDbuf;
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VIPS_API
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void vips_dbuf_destroy( VipsDbuf *dbuf );
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VIPS_API
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void vips_dbuf_init( VipsDbuf *dbuf );
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VIPS_API
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gboolean vips_dbuf_minimum_size( VipsDbuf *dbuf, size_t size );
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VIPS_API
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gboolean vips_dbuf_allocate( VipsDbuf *dbuf, size_t size );
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VIPS_API
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size_t vips_dbuf_read( VipsDbuf *dbuf, unsigned char *data, size_t size );
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VIPS_API
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unsigned char *vips_dbuf_get_write( VipsDbuf *dbuf, size_t *size );
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VIPS_API
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gboolean vips_dbuf_write( VipsDbuf *dbuf,
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const unsigned char *data, size_t size );
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VIPS_API
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gboolean vips_dbuf_writef( VipsDbuf *dbuf, const char *fmt, ... )
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G_GNUC_PRINTF( 2, 3 );
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VIPS_API
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gboolean vips_dbuf_write_amp( VipsDbuf *dbuf, const char *str );
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VIPS_API
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void vips_dbuf_reset( VipsDbuf *dbuf );
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VIPS_API
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void vips_dbuf_destroy( VipsDbuf *dbuf );
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VIPS_API
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gboolean vips_dbuf_seek( VipsDbuf *dbuf, off_t offset, int whence );
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VIPS_API
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void vips_dbuf_truncate( VipsDbuf *dbuf );
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VIPS_API
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off_t vips_dbuf_tell( VipsDbuf *dbuf );
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VIPS_API
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unsigned char *vips_dbuf_string( VipsDbuf *dbuf, size_t *size );
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VIPS_API
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unsigned char *vips_dbuf_steal( VipsDbuf *dbuf, size_t *size );
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#endif /*VIPS_DBUF_H*/
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#ifdef __cplusplus
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}
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#endif /*__cplusplus*/
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