opd_pipe.c File Reference

#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>

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Functions
void	opd_create_pipe (void)
void	opd_open_pipe (void)
void	opd_close_pipe (void)
int	is_jitconv_requested (void)
Variables
static int	fifo
static FILE *	fifo_fd = NULL

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

Definition in file opd_pipe.c.

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.

Definition at line 58 of file opd_pipe.c.

References fifo, and fifo_fd.

Referenced by opd_do_read().

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void opd_close_pipe ( void )

opd_close_pipe - closes the oprofiled fifo file

Closes the Oprofile daemon fifo pipe.

Definition at line 50 of file opd_pipe.c.

References fifo, and fifo_fd.

Referenced by opd_do_read().

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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.

Definition at line 27 of file opd_pipe.c.

References op_pipe_file.

Referenced by opd_open_files().

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