RPM IO API.

The RPM IO API (Fd_t is RPM equivalent to libc's FILE). More...

Collaboration diagram for RPM IO API.:

Files
file	rpmbase64.h
file	rpmfileutil.h
file	rpmio.h
file	rpmlog.h
file	rpmmacro.h
file	rpmsq.h
file	rpmsw.h
file	rpmurl.h

RPMIO Interface.
const char *	Fstrerror (FD_t fd)
ssize_t	Fread (void *buf, size_t size, size_t nmemb, FD_t fd)
ssize_t	Fwrite (const void *buf, size_t size, size_t nmemb, FD_t fd)
int	Fseek (FD_t fd, off_t offset, int whence)
off_t	Ftell (FD_t fd)
int	Fclose (FD_t fd)
FD_t	Fdopen (FD_t ofd, const char *fmode)
FD_t	Fopen (const char *path, const char *fmode)
int	Fflush (FD_t fd)
int	Ferror (FD_t fd)
int	Fileno (FD_t fd)
int	Fcntl (FD_t fd, int op, void *lip)
const char *	Fdescr (FD_t fd)

RPMIO Utilities.
enum	fdOpX_e {   FDSTAT_READ = 0, FDSTAT_WRITE = 1, FDSTAT_SEEK = 2, FDSTAT_CLOSE = 3,   FDSTAT_DIGEST = 4, FDSTAT_MAX = 5 }
typedef enum fdOpX_e	fdOpX
off_t	fdSize (FD_t fd)
FD_t	fdDup (int fdno)
FD_t	fdLink (FD_t fd)
FD_t	fdFree (FD_t fd)
rpmop	fdOp (FD_t fd, fdOpX opx)
off_t	ufdCopy (FD_t sfd, FD_t tfd)

Detailed Description

The RPM IO API (Fd_t is RPM equivalent to libc's FILE).

Typedef Documentation

typedef enum fdOpX_e fdOpX

Identify per-desciptor I/O operation statistics.

Enumeration Type Documentation

enum fdOpX_e

Identify per-desciptor I/O operation statistics.

Enumerator
FDSTAT_READ	Read statistics index.
FDSTAT_WRITE	Write statistics index.
FDSTAT_SEEK	Seek statistics index.
FDSTAT_CLOSE	Close statistics index
FDSTAT_DIGEST	Digest statistics index.

Function Documentation

int Fclose

(

FD_t

fd

)

fclose(3) clone.

int Fcntl	(	FD_t	fd,
		int	op,
		void *	lip
	)

fcntl(2) clone.

FD_t fdDup

(

int

fdno

)

dup(2) clone.

const char* Fdescr

(

FD_t

fd

)

Get informative description (eg file name) from fd for diagnostic output.

FD_t fdFree

(

FD_t

fd

)

Dereference a file descriptor. This does NOT close the file.

FD_t fdLink

(

FD_t

fd

)

Reference a file descriptor.

rpmop fdOp	(	FD_t	fd,
		fdOpX	opx
	)

File operation statistics.

FD_t Fdopen	(	FD_t	ofd,
		const char *	fmode
	)

fdopen(3) clone.

See Fopen() for details.

off_t fdSize

(

FD_t

fd

)

Return the size of the backing file of the descriptor.

int Ferror

(

FD_t

fd

)

ferror(3) clone.

int Fflush

(

FD_t

fd

)

fflush(3) clone.

int Fileno

(

FD_t

fd

)

fileno(3) clone.

FD_t Fopen	(	const char *	path,
		const char *	fmode
	)

fopen(3) clone with compression support.

The fmode parameter is based on that of fopen(3), but may also include a compression method (type and flags) to use when opening the stream. See rpm-payloadflags(7) manual for details.

ssize_t Fread	(	void *	buf,
		size_t	size,
		size_t	nmemb,
		FD_t	fd
	)

Like fread(3) but with read(3)-style return values.

int Fseek	(	FD_t	fd,
		off_t	offset,
		int	whence
	)

fseek(3) clone.

const char* Fstrerror

(

FD_t

fd

)

strerror(3) clone.

off_t Ftell

(

FD_t

fd

)

ftell(3) clone.

ssize_t Fwrite	(	const void *	buf,
		size_t	size,
		size_t	nmemb,
		FD_t	fd
	)

Like fwrite(3) but with write(3)-style return values.

off_t ufdCopy	(	FD_t	sfd,
		FD_t	tfd
	)

Copy file descriptor into another.