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Linux的获取U盘的插入或拔除消息
来源: 互联网 发布时间:2016-11-17
本文导语: 以前在WIndows下,可以直接重载OnDeviceChange函数来得知设备改变消息. #define DBT_DEVICEREMOVECOMPLETE 0x8004 // device is gone 转到Linux下,不知道应用程序是怎么得知设备已经移除的消息. 还请各位指点,谢谢!...
以前在WIndows下,可以直接重载OnDeviceChange函数来得知设备改变消息.
#define DBT_DEVICEREMOVECOMPLETE 0x8004 // device is gone
转到Linux下,不知道应用程序是怎么得知设备已经移除的消息.
还请各位指点,谢谢!
#define DBT_DEVICEREMOVECOMPLETE 0x8004 // device is gone
转到Linux下,不知道应用程序是怎么得知设备已经移除的消息.
还请各位指点,谢谢!
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/*
* Copyright (C) 2004-2006 Kay Sievers
*
* 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 version 2 of the License.
*
* 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.
*
*/
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include "udev.h"
#include "udevd.h"
static int uevent_netlink_sock = -1;
static int udev_monitor_sock = -1;
static volatile int udev_exit;
static int init_udev_monitor_socket(void)
{
struct sockaddr_un saddr;
socklen_t addrlen;
int retval;
memset(&saddr, 0x00, sizeof(saddr));
saddr.sun_family = AF_LOCAL;
/* use abstract namespace for socket path */
strcpy(&saddr.sun_path[1], "/org/kernel/udev/monitor");
addrlen = offsetof(struct sockaddr_un, sun_path) + strlen(saddr.sun_path+1) + 1;
udev_monitor_sock = socket(AF_LOCAL, SOCK_DGRAM, 0);
if (udev_monitor_sock == -1) {
fprintf(stderr, "error getting socket: %sn", strerror(errno));
return -1;
}
/* the bind takes care of ensuring only one copy running */
retval = bind(udev_monitor_sock, (struct sockaddr *) &saddr, addrlen);
if (retval