/usr/src/file_protector-1.1-1507/transport/ Current File: //usr/src/file_protector-1.1-1507/transport/fork_event.c
/**
@file
@brief    'fork' event
@details  Copyright (c) 2017-2018 Acronis International GmbH
@author   Mikhail Krivtsov (mikhail.krivtsov@acronis.com)
@since    $Id: $
*/

#include "fork_event.h"

#include "debug.h"
#include "message.h"
#include "task_info_map.h"

void fork_event_nowait(pid_t parent_tgid, pid_t parent_pid, pid_t child_tgid,
		pid_t child_pid)
{
	msg_t *msg;
	size_t fork_img_size;
	size_t msg_img_size;

	if (TS_IGNORE == task_info_status_get(parent_tgid)
	|| (parent_pid != parent_tgid && TS_IGNORE == task_info_status_get(parent_pid))) {
		DPRINTF("process is in 'ignore list'");
		goto out;
	}

	fork_img_size = sizeof(fork_img_t);
	msg_img_size = sizeof(msg_img_t) + fork_img_size;

	msg = msg_new_type_nowait(msg_img_size, MT_FORK);
	if (msg) {
		msg_img_t *msg_img = MSG_IMG(msg);
		fork_img_t *fork_img = IMG_PAYLOAD(msg_img);
		/*
		 * userspace kernel
		 * getpid()  current->tgid
		 * gettid()  current->pid
		 */
		fork_img->parent.pid = parent_tgid;
		fork_img->parent.tid = parent_pid;
		fork_img->child.pid = child_tgid;
		fork_img->child.tid = child_pid;

		send_msg_async(msg);
		msg_unref(msg);
	}
out:	;
}