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simple_cmd_builtin() done.

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+ exec_cmd_line.c split in multiples files
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LuckyLaszlo
2021-11-18 14:28:56 +01:00
parent 91d5a0d14c
commit 0bd9dcb3bb
8 changed files with 370 additions and 251 deletions
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95
srcs/exec/pipeline.c Normal file
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@@ -0,0 +1,95 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* pipeline.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: lperrey <lperrey@student.42.fr> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2021/11/16 01:57:38 by lperrey #+# #+# */
/* Updated: 2021/11/18 14:12:36 by lperrey ### ########.fr */
/* */
/* ************************************************************************** */
#include "minishell.h"
static int open_pipes(t_cmd *pipeline[]);
static int pipeline_find_access(t_cmd *pipeline[], char *path[]);
static pid_t pipeline_exec(t_cmd *pipeline[], t_all *c);
int pipeline(t_all *c)
{
if (!open_pipes(c->cmd_arr))
return (0);
if (!pipeline_find_access(c->cmd_arr, c->path))
return (0);
if (ft_2d_arrlen(c->cmd_arr) == 1 && c->cmd_arr[0]->builtin_func)
simple_command_builtin(c->cmd_arr[0], c);
else
wait_subshell(pipeline_exec(c->cmd_arr, c), &c->last_exit_status);
free_pipeline(&c->cmd_arr);
return (1);
}
static int open_pipes(t_cmd *pipeline[])
{
int i;
int pipes[2];
i = 0;
while (pipeline[i] && pipeline[i + 1])
{
if (pipe(pipes) == -1)
return (ft_reti_perror(0, "pipe()"));
if (pipeline[i]->fd_out == STDOUT_FILENO)
pipeline[i]->fd_out = pipes[STDOUT_FILENO];
else
if (close(pipes[STDOUT_FILENO]) == -1)
perror("close()");
if (pipeline[i]->fd_in == STDIN_FILENO)
pipeline[i + 1]->fd_in = pipes[STDIN_FILENO];
else
if (close(pipes[STDIN_FILENO]) == -1)
perror("close()");
i++;
}
return (1);
}
static int pipeline_find_access(t_cmd *pipeline[], char *path[])
{
int i;
i = 0;
while (pipeline[i])
{
if (!cmd_find_access(pipeline[i], path))
return (0);
i++;
}
return (1);
}
// TODO : Change exit status as in documentation :
// https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_08_02
static pid_t pipeline_exec(t_cmd *pipeline[], t_all *c)
{
int i;
int ret;
i = 0;
while (pipeline[i])
{
if (!pipeline[i]->error)
{
ret = cmd_exec_in_subshell(pipeline[i], c);
if (ret != EXIT_SUCCESS)
free_exit(c, ret);
}
i++;
}
close_pipeline_fd(c->cmd_arr);
i -= 1;
if (pipeline[i]->error)
c->last_exit_status = pipeline[i]->error;
return (pipeline[i]->pid);
}