dispatcher.c File Reference

/* ************************************************************************** */
/*                                                                            */
/*                                                        :::      ::::::::   */
/*   dispatcher.c                                       :+:      :+:    :+:   */
/*                                                    +:+ +:+         +:+     */
/*   By: tgrekov <tgrekov@student.hive.fi>          +#+  +:+       +#+        */
/*                                                +#+#+#+#+#+   +#+           */
/*   Created: 2024/04/23 08:18:15 by tgrekov           #+#    #+#             */
/*   Updated: 2024/05/23 05:11:33 by tgrekov          ###   ########.fr       */
/*                                                                            */
/* ************************************************************************** */
 

Definition in file dispatcher.c.

#include <stdlib.h>
#include <unistd.h>
#include "../../mandatory/utils/utils.h"

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Functions
void	dispatch (char **paths, char *args, char **envp, int *in_out)
	Dispatch child process with argument string args, environment envp, and stdin / stdout in_out[0] / in_out[1].
int	wait_all (int *pids, int n, int override)
	Wait for first n processes in pids to change state and return the last process's exit code, if it could be resolved, or 1.
int	dispatcher (int n, char ***str_arrs, int *in_out)
	Dispatch n child processes with argument strings str_arrs[1][i], environment pointer str_arrs[2], where stdin for the first process is in_out[0] and stdout for the last process is in_out[1].

Function Documentation

dispatch()

void dispatch	(	char **	paths,
		char *	args,
		char **	envp,
		int *	in_out
	)

Dispatch child process with argument string args, environment envp, and stdin / stdout in_out[0] / in_out[1].

Parameters

paths	Null-terminated array of paths with trailing forward slashes to search for the executable name in
args	String of arguments that will be split and passed as argv to the child process
envp	Environment pointer for the child process
in_out	stdin and stdout for the child process

Definition at line 67 of file dispatch.c.

References arr_free(), ft_printf(), and ft_split().

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dispatcher()

int dispatcher	(	int	n,
		char ***	str_arrs,
		int *	in_out
	)

Dispatch n child processes with argument strings str_arrs[1][i], environment pointer str_arrs[2], where stdin for the first process is in_out[0] and stdout for the last process is in_out[1].

Parameters

n	Number of processes
str_arrs	Null-terminated arrays paths, argv, and envp
in_out	stdin for the first process and stdout for the last process

Return values

int	Exit code of the last process, if available, else 1, or if an error was encountered in the parent process, 1.

Definition at line 85 of file dispatcher.c.

References err().

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wait_all()

int wait_all	(	int *	pids,
		int	n,
		int	override
	)

Wait for first n processes in pids to change state and return the last process's exit code, if it could be resolved, or 1.

Parameters

pids	Process ids to wait on
n	Number of process ids
override	Overrides return value if non-zero

Return values

int	Last process's exit code or 1

Definition at line 31 of file wait_all.c.