opd_pipe.c File Reference

Functions handling the $SESSIONDIR/opd_pipe FIFO special file. More...

#include "opd_pipe.h"
#include "opd_printf.h"
#include "op_config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <fcntl.h>
#include <unistd.h>
#include <errno.h>
#include <sys/stat.h>

Include dependency graph for opd_pipe.c:

Functions
void	opd_create_pipe (void)
	opd_create_pipe - creates the oprofiled fifo file
void	opd_open_pipe (void)
	opd_open_pipe - opens the oprofiled fifo file
void	opd_close_pipe (void)
	opd_close_pipe - closes the oprofiled fifo file
int	is_jitconv_requested (void)
	is_jitconv_requested - check for request to jit conversion

Detailed Description

Functions handling the $SESSIONDIR/opd_pipe FIFO special file.

NOTE: This code is dealing with potentially insecure input.

Remarks:: Copyright 2008 OProfile authors; Read the file COPYING

Author:: Daniel Hansel

Function Documentation

int is_jitconv_requested ( void )

is_jitconv_requested - check for request to jit conversion

Checks the Oprofile daemon fifo pipe for do_jitconv request. If jit conversion is requested ('do_jitconv' is sent) the check returns 1. Otherwise it returns 0.

void opd_close_pipe ( void )

opd_close_pipe - closes the oprofiled fifo file

Closes the Oprofile daemon fifo pipe.

void opd_create_pipe ( void )

opd_create_pipe - creates the oprofiled fifo file

Creates the Oprofile daemon fifo pipe to enable communication between the daemon and the 'opcontrol --dump' command. Failure to create the pipe is a fatal error.

References op_pipe_file.

void opd_open_pipe ( void )

opd_open_pipe - opens the oprofiled fifo file

References op_pipe_file.