spawn.c File Reference

GIS Library - Handles process spawning. More...

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <signal.h>
#include <stdarg.h>
#include <unistd.h>
#include <fcntl.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <grass/config.h>
#include <grass/gis.h>
#include <grass/glocale.h>
#include <grass/spawn.h>

Include dependency graph for spawn.c:

Go to the source code of this file.

Macros
#define	MAX_ARGS   256
#define	MAX_BINDINGS   256
#define	MAX_SIGNALS   32
#define	MAX_REDIRECTS   32
#define	NEXT_ARG(var, type)   ((type) *(var)++)
#define	NEXT_ARG_INT(var)   (int)((intptr_t) *(var)++)

Functions
int	G_vspawn_ex (const char *command, const char **args)
	Spawn new process based on command. More...
int	G_spawn_ex (const char *command,...)
	Spawn new process based on command. More...
int	G_spawn (const char *command,...)
	Spawn new process based on command. More...
int	G_wait (int i_pid)

Detailed Description

GIS Library - Handles process spawning.

(C) 2001-2014 by the GRASS Development Team

This program is free software under the GNU General Public License (>=v2). Read the file COPYING that comes with GRASS for details.

Author

Glynn Clements

Date

2004-2006

Definition in file spawn.c.

Macro Definition Documentation

MAX_ARGS

#define MAX_ARGS   256

Definition at line 44 of file spawn.c.

Referenced by G_spawn().

MAX_BINDINGS

#define MAX_BINDINGS   256

Definition at line 45 of file spawn.c.

MAX_REDIRECTS

#define MAX_REDIRECTS   32

Definition at line 47 of file spawn.c.

MAX_SIGNALS

#define MAX_SIGNALS   32

Definition at line 46 of file spawn.c.

NEXT_ARG

#define NEXT_ARG	(		var,
			type
	)		((type) *(var)++)

Definition at line 734 of file spawn.c.

NEXT_ARG_INT

#define NEXT_ARG_INT

(

var

)

(int)((intptr_t) *(var)++)

Definition at line 735 of file spawn.c.

Function Documentation

G_spawn()

int G_spawn	(	const char *	command,
			...
	)

Spawn new process based on command.

Parameters

[in]

command

Returns

-1 on error

process status on success

Definition at line 925 of file spawn.c.

References G_spawn_ex(), MAX_ARGS, NULL, SF_ARGVEC, SF_SIGNAL, SSA_BLOCK, SSA_IGNORE, and SST_PRE.

G_spawn_ex()

int G_spawn_ex	(	const char *	command,
			...
	)

Spawn new process based on command.

This is a more advanced version of G_spawn().

Parameters

[in]

command

Returns

-1 on error

process status on success

Definition at line 903 of file spawn.c.

Referenced by G_spawn().

G_vspawn_ex()

int G_vspawn_ex	(	const char *	command,
		const char **	args
	)

Spawn new process based on command.

This is a more advanced version of G_spawn().

Parameters

[in]	command
[in]	args	arguments

Returns

-1 on error

process status on success

Definition at line 882 of file spawn.c.

G_wait()

int G_wait

(

int

i_pid

)

Definition at line 956 of file spawn.c.

References FALSE.

Referenced by db_shutdown_driver(), and G_popen_close().