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/*
* Emulator
*
* Copyright (C) 2012, 2013 Samsung Electronics Co., Ltd. All rights reserved.
*
* Contact:
* SeokYeon Hwang <syeon.hwang@samsung.com>
* MunKyu Im <munkyu.im@samsung.com>
* GiWoong Kim <giwoong.kim@samsung.com>
* YeongKyoon Lee <yeongkyoon.lee@samsung.com>
* HyunJun Son
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* Contributors:
* - S-Core Co., Ltd
*
*/
/**
@file osutil.c
@brief Common functions for osutil
*/
#include "osutil.h"
#include "debug_ch.h"
#include <curl/curl.h>
#include <string.h>
#ifndef CONFIG_WIN32
MULTI_DEBUG_CHANNEL(emulator, osutil);
static sdcard_info info;
static int fd_lock(int fd)
{
struct flock lock;
lock.l_type = F_WRLCK;
lock.l_start = 0;
lock.l_whence = SEEK_SET;
lock.l_len = 0;
lock.l_pid = getpid();
return fcntl(fd, F_SETLK, &lock);
}
static int fd_unlock(int fd)
{
struct flock lock;
lock.l_type = F_UNLCK;
lock.l_start = 0;
lock.l_whence = SEEK_SET;
lock.l_len = 0;
lock.l_pid = getpid();
return fcntl(fd, F_SETLK, &lock);
}
bool make_sdcard_lock_posix(char *sdcard)
{
char *lock_file = g_strdup_printf("%s-%d.lck", sdcard, getpid());
int fd = open(lock_file, O_CREAT|O_RDWR, 0666);
if (fd == -1)
{
perror("file open error : ");
return false;
}
if (fd_lock(fd) == -1)
{
perror("file is lock ");
close(fd);
return false;
}
info.fd = fd;
INFO("Get file lock: %s\n", lock_file);
return true;
}
int remove_sdcard_lock_posix(char *sdcard)
{
errno = 0;
char *lock_file = g_strdup_printf("%s-%d.lck", sdcard, getpid());
int fd = open(lock_file, O_RDWR, 0666);
if (fd == -1)
{
perror("file open error : ");
if(errno == ENOENT) {
return ERR_NOENT;
}
return ERR_UNLCK;
}
if (fd_unlock(fd) == -1)
{
perror("file unlock error ");
close(fd);
return ERR_UNLCK;
}
if (unlink(lock_file) < 0) {
perror("unlink error ");
close(fd);
return ERR_UNLCK;
}
INFO("unlock success: %s\n", lock_file);
close(fd);
close(info.fd);
return ERR_SUCCESS;
}
#endif
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