oprofile: opd_pipe.h Source File

00001 /**
00002  * @file daemon/opd_pipe.h
00003  * Functions handling the $SESSIONDIR/opd_pipe FIFO special file.
00004  * NOTE: This code is dealing with potencially insecure input.
00005  *
00006  * @remark Copyright 2008 OProfile authors
00007  * @remark Read the file COPYING
00008  *
00009  * @author Daniel Hansel
00010  */
00011 
00012 #ifndef OPD_PIPE_H_
00013 #define OPD_PIPE_H_
00014  
00015 /**
00016  * opd_create_pipe - creates the oprofiled fifo file
00017  *
00018  * Creates the Oprofile daemon fifo pipe to enable communication between
00019  * the daemon and the 'opcontrol --dump' command. Failure to create the pipe
00020  * is a fatal error.
00021  */
00022 void opd_create_pipe(void);
00023 
00024 /**
00025  * opd_open_pipe - opens the oprofiled fifo file
00026  */
00027 void opd_open_pipe(void);
00028 
00029 /**
00030  * opd_close_pipe - closes the oprofiled fifo file
00031  *
00032  * Closes the Oprofile daemon fifo pipe.
00033  */
00034 void opd_close_pipe(void);
00035 
00036 /**
00037  * is_jitconv_requested - check for request to jit conversion
00038  *
00039  * Checks the Oprofile daemon fifo pipe for do_jitconv request.
00040  * If jit conversion is requested ('do_jitconv' is sent) the check returns 1.
00041  * Otherwise it returns 0.
00042  */
00043 int is_jitconv_requested(void);
00044 
00045 #endif /*OPD_PIPE_H_*/