gpionotify.cxx File Reference

Create GPIO exported interface. More...

#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <unistd.h>
#include <fcntl.h>
#include <string>
#include "rnr/rnrconfig.h"
#include "rnr/log.h"
#include "rnr/opts.h"
#include "rnr/pkg.h"
#include "rnr/gpio.h"
#include "version.h"

Go to the source code of this file.

Macros
#define	APP_EC_OK   0
	success exit code
#define	APP_EC_ARGS   2
	command-line options/arguments error exit code
#define	APP_EC_EXEC   4
	execution exit code

Functions
static void	badCmdExit ()
	Exit program on bad command-line values.
static int	strToInt (const string &str, int &val)
	Convert string to integer.
static void	mainInit (int argc, char *argv[])
	Main initialization. More...
int	main (int argc, char *argv[])
	Main. More...

Variables
static char *	Argv0
	the command
static bool_t	OptsMonitor = false
	do [not] keep listening for events
static double	OptsTimeout = 0.0
	event timeout (none)
static int	ArgsGpioNum
	gpio number
static OptsPgmInfo_T	PgmInfo
	Program information. More...
static OptsInfo_T	OptsInfo []
	Command line options information.

Detailed Description

Create GPIO exported interface.

LastChangedDate

2015-04-08 17:22:10 -0600 (Wed, 08 Apr 2015)

Rev

3913

Author

Robin Knight (robin.nosp@m..kni.nosp@m.ght@r.nosp@m.oadn.nosp@m.arrow.nosp@m.s.co.nosp@m.m)

Copyright

© 2016-2017. RoadNarrows LLC.
http://www.roadnarrows.com
All Rights Reserved

Definition in file gpionotify.cxx.

Function Documentation

static void mainInit ( int  argc, char *  argv[]  )

static

Main initialization.

Parameters

argc	Command-line argument count.
argv	Command-line argument list.

Exits:

Program terminates on conversion error.

Returns

Exit code.

Definition at line 168 of file gpionotify.cxx.

References APP_EC_EXEC, APP_EC_OK, ArgsGpioNum, Argv0, badCmdExit(), gpioNotify(), gpioOpen(), gpioQuickRead(), main(), OptsInfo, OptsMonitor, OptsTimeout, PgmInfo, PkgInfo, and strToInt().

{
  // name of this process
  Argv0 = basename(argv[0]);

  // parse input options
  argv = OptsGet(Argv0, &PkgInfo, &PgmInfo, OptsInfo, true, &argc, argv);

  if( argc == 0 )
  {
    fprintf(stderr, "%s: No GPIO pin number <gpio> specified.\n", Argv0);
    badCmdExit();
  }

  else if( strToInt(argv[0], ArgsGpioNum) < 0 )
  {
    fprintf(stderr, "%s: '%s': Bad GPIO number.\n", Argv0, argv[0]);
    badCmdExit();
  }

  for(int i = 2; i<argc; ++i)
    printf(".%s.\n", argv[i]);

}