#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <grass/gis.h>
#include <grass/spawn.h>

Include dependency graph for popen.c:

Functions
void	G_popen_clear (struct Popen *state)

FILE *	G_popen_write (struct Popen state, const char program, const char **args)

FILE *	G_popen_read (struct Popen state, const char program, const char **args)

int	G_popen_close (struct Popen *state)
	Closes a pipe opened with G_popen_read() or G_popen_write().

Function Documentation

◆ G_popen_clear()

void G_popen_clear ( struct Popen * state )

Definition at line 56 of file popen.c.

References UntypedStream::fp, NULL, and state.

Referenced by G_open_mail(), G_open_pager(), and G_popen_close().

◆ G_popen_close()

int G_popen_close ( struct Popen * state )

Closes a pipe opened with G_popen_read() or G_popen_write().

Closes the associated stream, waits for the spawned process to finish, clears the popen state, and returns the process status reported by G_wait(). If the state has no open stream or process, it is cleared and 0 is returned.

Parameters

state Pointer to the popen state to close and reset.

Returns: The status returned by G_wait(), or 0 when no process is associated with the state.

Definition at line 84 of file popen.c.

References UntypedStream::fp, G_popen_clear(), G_wait(), and state.

Referenced by G_close_mail(), and G_close_pager().

◆ G_popen_read()

FILE * G_popen_read	(	struct Popen *	state,
		const char *	program,
		const char **	args
	)

Definition at line 67 of file popen.c.

References state.

◆ G_popen_write()

FILE * G_popen_write	(	struct Popen *	state,
		const char *	program,
		const char **	args
	)

Definition at line 62 of file popen.c.