systemd/src/shared/exec-util.h

/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once

#include <stdbool.h>

#include "time-util.h"

typedef int (*gather_stdout_callback_t) (int fd, void *arg);

enum {
        STDOUT_GENERATE,   /* from generators to helper process */
        STDOUT_COLLECT,    /* from helper process to main process */
        STDOUT_CONSUME,    /* process data in main process */
        _STDOUT_CONSUME_MAX,
};

int execute_directories(
                const char* const* directories,
                usec_t timeout,
                gather_stdout_callback_t const callbacks[_STDOUT_CONSUME_MAX],
                void* const callback_args[_STDOUT_CONSUME_MAX],
                char *argv[],
                char *envp[]);

extern const gather_stdout_callback_t gather_environment[_STDOUT_CONSUME_MAX];