mirror of git://gcc.gnu.org/git/gcc.git
133 lines
4.1 KiB
C
133 lines
4.1 KiB
C
/* GNU Objective-C Typed Streams interface.
|
|
Copyright (C) 1993, 1995 Free Software Foundation, Inc.
|
|
|
|
This file is part of GCC.
|
|
|
|
GCC is free software; you can redistribute it and/or modify it
|
|
under the terms of the GNU General Public License as published by the
|
|
Free Software Foundation; either version 2, or (at your option) any
|
|
later version.
|
|
|
|
GCC 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.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GCC; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
/* As a special exception, if you link this library with files compiled
|
|
with GCC to produce an executable, this does not cause the resulting
|
|
executable to be covered by the GNU General Public License. This
|
|
exception does not however invalidate any other reasons why the
|
|
executable file might be covered by the GNU General Public License. */
|
|
|
|
#ifndef __typedstream_INCLUDE_GNU
|
|
#define __typedstream_INCLUDE_GNU
|
|
|
|
#include "objc/objc.h"
|
|
#include "objc/hash.h"
|
|
#include <stdio.h>
|
|
|
|
typedef int (*objc_typed_read_func)(void*, char*, int);
|
|
typedef int (*objc_typed_write_func)(void*, const char*, int);
|
|
typedef int (*objc_typed_flush_func)(void*);
|
|
typedef int (*objc_typed_eof_func)(void*);
|
|
|
|
#define OBJC_READONLY 0x01
|
|
#define OBJC_WRITEONLY 0x02
|
|
|
|
#define OBJC_MANAGED_STREAM 0x01
|
|
#define OBJC_FILE_STREAM 0x02
|
|
#define OBJC_MEMORY_STREAM 0x04
|
|
|
|
#define OBJC_TYPED_STREAM_VERSION 0x01
|
|
|
|
typedef struct objc_typed_stream {
|
|
void* physical;
|
|
cache_ptr object_table; /* read/written objects */
|
|
cache_ptr stream_table; /* other read/written but shared things.. */
|
|
cache_ptr class_table; /* class version mapping */
|
|
cache_ptr object_refs; /* forward references */
|
|
int mode; /* OBJC_READONLY or OBJC_WRITEONLY */
|
|
int type; /* MANAGED, FILE, MEMORY etc bit string */
|
|
int version; /* version used when writing */
|
|
int writing_root_p;
|
|
objc_typed_read_func read;
|
|
objc_typed_write_func write;
|
|
objc_typed_eof_func eof;
|
|
objc_typed_flush_func flush;
|
|
} TypedStream;
|
|
|
|
/* opcode masks */
|
|
#define _B_VALUE 0x1fU
|
|
#define _B_CODE 0xe0U
|
|
#define _B_SIGN 0x10U
|
|
#define _B_NUMBER 0x0fU
|
|
|
|
/* standard opcodes */
|
|
#define _B_INVALID 0x00U
|
|
#define _B_SINT 0x20U
|
|
#define _B_NINT 0x40U
|
|
#define _B_SSTR 0x60U
|
|
#define _B_NSTR 0x80U
|
|
#define _B_RCOMM 0xa0U
|
|
#define _B_UCOMM 0xc0U
|
|
#define _B_EXT 0xe0U
|
|
|
|
/* eXtension opcodes */
|
|
#define _BX_OBJECT 0x00U
|
|
#define _BX_CLASS 0x01U
|
|
#define _BX_SEL 0x02U
|
|
#define _BX_OBJREF 0x03U
|
|
#define _BX_OBJROOT 0x04U
|
|
#define _BX_EXT 0x1fU
|
|
|
|
/*
|
|
** Read and write objects as specified by TYPE. All the `last'
|
|
** arguments are pointers to the objects to read/write.
|
|
*/
|
|
|
|
int objc_write_type (TypedStream* stream, const char* type, const void* data);
|
|
int objc_read_type (TypedStream* stream, const char* type, void* data);
|
|
|
|
int objc_write_types (TypedStream* stream, const char* type, ...);
|
|
int objc_read_types (TypedStream* stream, const char* type, ...);
|
|
|
|
int objc_write_object_reference (TypedStream* stream, id object);
|
|
int objc_write_root_object (TypedStream* stream, id object);
|
|
|
|
long objc_get_stream_class_version (TypedStream* stream, Class class);
|
|
|
|
|
|
/*
|
|
** Convenience functions
|
|
*/
|
|
|
|
int objc_write_array (TypedStream* stream, const char* type,
|
|
int count, const void* data);
|
|
int objc_read_array (TypedStream* stream, const char* type,
|
|
int count, void* data);
|
|
|
|
int objc_write_object (TypedStream* stream, id object);
|
|
int objc_read_object (TypedStream* stream, id* object);
|
|
|
|
|
|
|
|
/*
|
|
** Open a typed stream for reading or writing. MODE may be either of
|
|
** OBJC_READONLY or OBJC_WRITEONLY.
|
|
*/
|
|
|
|
TypedStream* objc_open_typed_stream (FILE* physical, int mode);
|
|
TypedStream* objc_open_typed_stream_for_file (const char* file_name, int mode);
|
|
|
|
void objc_close_typed_stream (TypedStream* stream);
|
|
|
|
BOOL objc_end_of_typed_stream (TypedStream* stream);
|
|
void objc_flush_typed_stream (TypedStream* stream);
|
|
|
|
#endif /* not __typedstream_INCLUDE_GNU */
|