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/***************************************************************
MPU-LIBIO.H
This file contains internal declarations for
LIBMPUIO stream operations.
PART OF : MPUIO - library .
USAGE : Internal only .
NOTE : NONE .
Copyright (C) 2000 - 2026 by Andrey V.Kosteltsev.
All Rights Reserved.
***************************************************************/
#ifndef __MPU_LIBIO_H
#define __MPU_LIBIO_H 1
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <libmpuio.h>
#include <mpu-symbols.h>
#define __MPU_IO_MAGIC 0x4d505549U
#define __MPU_IO_NO_READS 0x00000001U
#define __MPU_IO_NO_WRITES 0x00000002U
#define __MPU_IO_EOF_SEEN 0x00000004U
#define __MPU_IO_ERR_SEEN 0x00000008U
#define __MPU_IO_USER_BUF 0x00000010U
#define __MPU_IO_LINE_BUF 0x00000020U
#define __MPU_IO_UNBUFFERED 0x00000040U
#define __MPU_IO_READING 0x00000080U
#define __MPU_IO_WRITING 0x00000100U
#define __MPU_IO_APPEND 0x00000200U
#define __MPU_IO_STATIC 0x00000400U
#define __MPU_IO_STRING 0x00000800U
#define __MPU_IO_COUNTED 0x00001000U
#define __MPU_IO_MEMSTREAM 0x00002000U
#define __MPU_IO_PIPE 0x00004000U
#define __MPU_IO_COOKIE 0x00008000U
#define __MPU_IO_NOLIST 0x00010000U
struct __mpu_IO_jump_t;
struct __mpu_IO_FILE
{
__mpu_uint32_t _magic;
unsigned int _flags;
int _fileno;
unsigned char *_read_base;
unsigned char *_read_ptr;
unsigned char *_read_end;
unsigned char *_write_base;
unsigned char *_write_ptr;
unsigned char *_write_end;
unsigned char *_buf_base;
unsigned char *_buf_end;
pthread_mutex_t _lock;
struct __mpu_IO_FILE *_next;
unsigned int _pins;
unsigned int _closing;
void *_cookie;
unsigned int _unget_count;
__mpu_char16_t _unget_chars[8];
};
struct __mpu_IO_FILE_plus
{
struct __mpu_IO_FILE file;
const struct __mpu_IO_jump_t *vtable;
};
#define __MPU_IO_PLUS(STREAM) \
((struct __mpu_IO_FILE_plus *)(void *)(STREAM))
#define __MPU_IO_JUMPS(STREAM) \
(__MPU_IO_PLUS( STREAM )->vtable)
struct __mpu_IO_jump_t
{
int (*finish)( mpu_FILE *stream );
int (*underflow)( mpu_FILE *stream );
int (*overflow)( mpu_FILE *stream, int c );
int (*sync)( mpu_FILE *stream );
int (*setbuf)( mpu_FILE *stream, unsigned char *buf,
int mode, size_t size );
off_t (*seekoff)( mpu_FILE *stream, off_t offset, int whence );
off_t (*seekpos)( mpu_FILE *stream, off_t position );
int (*flush)( mpu_FILE *stream );
int (*close)( mpu_FILE *stream );
int (*seek)( mpu_FILE *stream, off_t offset, int whence );
off_t (*tell)( mpu_FILE *stream );
int (*get_byte)( mpu_FILE *stream );
int (*put_byte)( unsigned char c, mpu_FILE *stream );
size_t (*xsgetn)( mpu_FILE *stream, void *data, size_t size );
size_t (*xsputn)( mpu_FILE *stream, const void *data, size_t size );
int (*get_char)( mpu_FILE *stream, __mpu_char16_t *wc );
int (*put_char)( __mpu_char16_t wc, mpu_FILE *stream );
};
typedef struct __mpu_IO_cookie_file
{
void *user_cookie;
mpu_cookie_io_functions_t io;
} __mpu_IO_cookie_file;
typedef struct __mpu_IO_strfile
{
__mpu_char16_t *buffer;
size_t capacity;
size_t length;
size_t pos;
int nul_terminated;
int dynamic;
__mpu_char16_t **publish_buffer;
size_t *publish_size;
} __mpu_IO_strfile;
extern pthread_mutex_t __mpu_IO_list_lock;
extern mpu_FILE *__mpu_IO_list_all;
extern const struct __mpu_IO_jump_t __mpu_IO_file_jumps;
extern const struct __mpu_IO_jump_t __mpu_IO_str_jumps;
extern const struct __mpu_IO_jump_t __mpu_IO_cookie_jumps;
extern int __mpu_IO_lock_init( pthread_mutex_t *lock );
extern int __mpu_IO_parse_mode( const char *mode, unsigned int *flags,
int *oflags, int for_open );
extern int __mpu_IO_valid( mpu_FILE *stream );
extern void __mpu_IO_link_in( mpu_FILE *stream );
extern void __mpu_IO_unlink_locked( mpu_FILE *stream );
extern void __mpu_IO_unlink( mpu_FILE *stream );
extern mpu_FILE *__mpu_IO_file_open( int fd, unsigned int flags );
extern int __mpu_IO_doallocbuf( mpu_FILE *stream );
extern int __mpu_IO_file_finish_unlocked( mpu_FILE *stream );
extern int __mpu_IO_file_underflow_unlocked( mpu_FILE *stream );
extern int __mpu_IO_file_overflow_unlocked( mpu_FILE *stream, int c );
extern int __mpu_IO_file_sync_unlocked( mpu_FILE *stream );
extern int __mpu_IO_file_setbuf_unlocked( mpu_FILE *stream,
unsigned char *buf,
int mode, size_t size );
extern off_t __mpu_IO_file_seekoff_unlocked( mpu_FILE *stream,
off_t offset, int whence );
extern off_t __mpu_IO_file_seekpos_unlocked( mpu_FILE *stream,
off_t position );
extern int __mpu_IO_file_flush_unlocked( mpu_FILE *stream );
extern int __mpu_IO_file_sync_input_unlocked( mpu_FILE *stream );
extern int __mpu_IO_file_get_byte_unlocked( mpu_FILE *stream );
extern int __mpu_IO_file_put_byte_unlocked( unsigned char c,
mpu_FILE *stream );
extern size_t __mpu_IO_file_xsgetn_unlocked( mpu_FILE *stream,
void *data, size_t size );
extern size_t __mpu_IO_file_xsputn_unlocked( mpu_FILE *stream,
const void *data, size_t size );
extern int __mpu_IO_file_seek_unlocked( mpu_FILE *stream,
off_t offset, int whence );
extern off_t __mpu_IO_file_tell_unlocked( mpu_FILE *stream );
extern int __mpu_IO_file_close_unlocked( mpu_FILE *stream );
extern int __mpu_IO_finish_unlocked( mpu_FILE *stream );
extern int __mpu_IO_underflow_unlocked( mpu_FILE *stream );
extern int __mpu_IO_overflow_unlocked( mpu_FILE *stream, int c );
extern int __mpu_IO_sync_unlocked( mpu_FILE *stream );
extern int __mpu_IO_setbuf_unlocked( mpu_FILE *stream,
unsigned char *buf,
int mode, size_t size );
extern off_t __mpu_IO_seekoff_unlocked( mpu_FILE *stream,
off_t offset, int whence );
extern off_t __mpu_IO_seekpos_unlocked( mpu_FILE *stream,
off_t position );
extern int __mpu_IO_flush_unlocked( mpu_FILE *stream );
extern int __mpu_IO_get_byte_unlocked( mpu_FILE *stream );
extern int __mpu_IO_put_byte_unlocked( unsigned char c,
mpu_FILE *stream );
extern size_t __mpu_IO_xsgetn_unlocked( mpu_FILE *stream,
void *data, size_t size );
extern size_t __mpu_IO_xsputn_unlocked( mpu_FILE *stream,
const void *data, size_t size );
extern int __mpu_IO_get_char_unlocked( mpu_FILE *stream,
__mpu_char16_t *wc );
extern int __mpu_IO_put_char_unlocked( __mpu_char16_t wc,
mpu_FILE *stream );
extern int __mpu_IO_unget_char_unlocked( __mpu_char16_t wc,
mpu_FILE *stream );
extern int __mpu_UTF8_decode_unlocked( mpu_FILE *stream,
__mpu_char16_t *wc );
extern int __mpu_UTF8_encode_unlocked( __mpu_char16_t wc,
mpu_FILE *stream );
extern mpu_FILE *__mpu_IO_str_open( __mpu_char16_t *buffer,
size_t capacity,
size_t length,
unsigned int flags );
extern mpu_FILE *__mpu_IO_str_open_readonly( const __mpu_char16_t *buffer,
size_t length );
extern mpu_FILE *__mpu_IO_str_open_counted( __mpu_char16_t *buffer,
size_t capacity );
extern mpu_FILE *__mpu_IO_str_open_memstream( __mpu_char16_t **buffer,
size_t *size,
unsigned int flags );
extern int __mpu_IO_vfprintf( mpu_FILE *stream,
const __mpu_char16_t *format,
va_list args );
extern int __mpu_IO_vfprintf_unlocked( mpu_FILE *stream,
const __mpu_char16_t *format,
va_list args );
extern int __mpu_IO_vfscanf( mpu_FILE *stream,
const __mpu_char16_t *format,
va_list args );
extern int __mpu_IO_vfscanf_unlocked( mpu_FILE *stream,
const __mpu_char16_t *format,
va_list args );
#endif /* __MPU_LIBIO_H */
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