pipe.h File Reference

#include "shell.h"
#include "tokens.h"

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Macros
#define	WAIT_NEXT_COMMAND   1

Functions
int	builtin_pipe (t_ast *node, t_ms_data *data)

Macro Definition Documentation

WAIT_NEXT_COMMAND

#define WAIT_NEXT_COMMAND   1

Definition at line 19 of file pipe.h.

Function Documentation

builtin_pipe()

int builtin_pipe	(	t_ast *	node,
		t_ms_data *	data
	)

Definition at line 46 of file pipe.c.

{
    pid_t   pid_1;
    pid_t   pid_2;
    int     status_1;
    int     status_2;
    int     setup_result;
 
    status_1 = 0;
    status_2 = 0;
    setup_result = setup_pipe_processes(node, data, &pid_1, &pid_2);
    if (setup_result == WAIT_NEXT_COMMAND)
        return (WAIT_NEXT_COMMAND);
    if (pid_1 > 0 && waitpid(pid_1, &status_1, 0) == -1)
        return (ft_perror("waitpid"));
    if (pid_2 > 0)
    {
        if (waitpid(pid_2, &status_2, 0) == -1)
            return (ft_perror("waitpid"));
        return (WEXITSTATUS(status_2));
    }
    return (WEXITSTATUS(status_1));
}

References ft_perror(), setup_pipe_processes(), and WAIT_NEXT_COMMAND.

Referenced by builtin_pipe_test(), and execute_ast().

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