zeda_stream.h File Reference

generalized I/O stream. More...

#include <zeda/zeda_misc.h>

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Data Structures
struct	__zstream

Macros
#define	zStreamRewind(s)   (*(s)->rewind)( (s) )
	set the current position to the head of a stream. More...
#define	zStreamSeek(s, p)   (*(s)->seek)( (s), (p) )
	set the current position to the specified location in a stream. More...
#define	zStreamTell(s)   (*(s)->tell)( (s) )
	tell the current position in a stream. More...
#define	zStreamRead(s, d, u, n)   (*(s)->read)( (s), (d), (u), (n) )
	read n data from the current position of s, and copy it to the memory pointed by d. u is the size of a data cell. More...
#define	zStreamWrite(s, m, u, n)   (*(s)->write)( (s), (m), (u), (n) )
	write n data stored at m to the current position of s. s is the size of a data cell. More...
#define	zStreamClose(s)   (*(s)->close)( (s) )
	close a stream. More...

Typedefs
typedef struct __zstream	zStream

Functions
void	zStreamAttachFile (zStream *str, FILE *fp)
	attach a file to a stream. More...
void	zStreamAttachMem (zStream *str, byte *mem, size_t size)
	attach a memory space to a stream. More...
zStream *	zStreamOpenFile (zStream *str, char filename[], char *mode)
	open a file and attach to a stream. More...
zStream *	zStreamOpenMem (zStream *str, size_t size)
	allocate a memory space and attach to a stream. More...

Detailed Description

generalized I/O stream.

Author

Zhidao

This module is not available in the kernel space, since it requires the file pointer.