PPC手机从待机到重启后网络重建问题

[胡摩西]

PPC待机开机后网络连接会断开，必须重新激活网络，通常是怎样处理这个过程的呢？

激活网络->建立socket->工作->手机因某原因待机->网络断开->激活开机->怎样处理返回到第一步呢？

[载舟之水]

系统唤醒当然会发消息，你要做的就是创建一个消息队列，然后等着系统发给你

DWORD ResumeMonThread(LPVOID)
{
	MSGQUEUEOPTIONS msgOptions = {0}; 

	while(!IsAPIReady(SH_SHELL) || !IsAPIReady(SH_WMGR) || !IsAPIReady(SH_GDI))
	{
		Sleep(250);
	}

	wprintf(_T("ResumeMonThread TID = 0x%x\r\n"), GetCurrentThreadId());

	// Create a message queue for Power Manager notifications.
	msgOptions.dwSize        = sizeof(MSGQUEUEOPTIONS);
	msgOptions.dwFlags       = 0;
	msgOptions.dwMaxMessages = 0;
	msgOptions.cbMaxMessage  = sizeof(POWER_BROADCAST) + MAX_NAMELEN;
	msgOptions.bReadAccess   = TRUE;

	g_hPMReadMsgQ = CreateMsgQueue(NULL, &msgOptions);

	if ( g_hPMReadMsgQ == NULL )
	{
		DEBUGMSG(1, (TEXT("PWM: CreateMsgQueue(Read): error %d\r\n"), GetLastError()));
		g_FlagExitThrd = TRUE;
	}
	// Request Power notifications
	g_hPMNotifications = RequestPowerNotifications(g_hPMReadMsgQ, POWER_NOTIFY_ALL);
	if ( ! g_hPMNotifications ) 
	{
		DEBUGMSG(1, (TEXT("PWM: RequestPowerNotifications: error %d\r\n"), GetLastError()));
		g_FlagExitThrd = TRUE;
	}

	DebugOut(TEXT("ResumeMonThread: create thread success!!!"));

	while(!g_FlagExitThrd)
	{
		DWORD iBytesInQueue = 0;
		DWORD dwFlags;
		UCHAR buf[QUEUE_SIZE];

		PPOWER_BROADCAST pB = (PPOWER_BROADCAST) buf;
		memset(buf, 0, QUEUE_SIZE);

		DEBUGMSG(0, (TEXT("PWM: Waiting for PM state transition notification\r\n")));

		// Read message from queue.
		if ( ! ReadMsgQueue(g_hPMReadMsgQ, buf, QUEUE_SIZE, &iBytesInQueue, INFINITE, &dwFlags) )
		{
			DEBUGMSG(1, (TEXT("PWM: ReadMsgQueue: ERROR:%d\r\n"), GetLastError()));
		} 
		else if ( iBytesInQueue < sizeof(POWER_BROADCAST) )
		{
			DEBUGMSG(1, (TEXT("PWM: Received short message: %d bytes, expected: %d\r\n"),
				iBytesInQueue, sizeof(POWER_BROADCAST)));
		}
		else 
		{
			switch ( pB->Message )
			{
			case PBT_TRANSITION:

				//RETAILMSG(1, (TEXT("PWM: PBT_TRANSITION to system power state [Flags: 0x%x]: '%s'\r\n"), pB->Flags, pB->SystemPowerState));

				switch ( POWER_STATE(pB->Flags) )
				{
				case POWER_STATE_ON:
					//DEBUGMSG(1, (TEXT("PWM: POWER_STATE_ON\r\n")));
					break;

				case POWER_STATE_OFF:
					//DEBUGMSG(1, (TEXT("PWM: POWER_STATE_OFF\r\n")));
					break;

				case POWER_STATE_CRITICAL:
					//DEBUGMSG(1, (TEXT("PWM: POWER_STATE_CRITICAL\r\n")));
					break;

				case POWER_STATE_BOOT:
					//DEBUGMSG(1, (TEXT("PWM: POWER_STATE_BOOT\r\n")));
					break;

				case POWER_STATE_IDLE:
					//DEBUGMSG(1, (TEXT("PWM: POWER_STATE_IDLE\r\n")));
					break;

				case POWER_STATE_SUSPEND:
					DebugOut(TEXT("POWER_STATE_SUSPEND for resume mon\r\n"));
					break;

				case POWER_STATE_RESET:
					//DEBUGMSG(1, (TEXT("PWM: POWER_STATE_RESET\r\n")));
					break;

				case POWER_STATE_PASSWORD:
					//DEBUGMSG(1, (TEXT("PWM: POWER_STATE_PASSWORD\r\n")));
					break;
				case  POWER_STATE_UNATTENDED:
					//DEBUGMSG(1, (TEXT("PWM: POWER_STATE_UNATTENDED\r\n")));
					break;
				case 0:
					//DEBUGMSG(1,(TEXT("PWM: Power State Flags:0x%x\r\n"),pB->Flags));
					break;

				default:
					//DEBUGMSG(1,(TEXT("PWM: Unknown Power State Flags:0x%x\r\n"),pB->Flags));
					break;
				}
				break;
			case PBT_RESUME:
				{
					DebugOut(TEXT("PBT_RESUME\r\n"));
					if(g_hMainWnd != NULL)
					{
						ShowWindow(g_hMainWnd, SW_SHOWNORMAL);
						SetForegroundWindow((HWND)((ULONG) g_hMainWnd | 0x00000001));
						
						SendMessage(g_hMainWnd, WM_REFRESH_TIME, 0, 0);
					}
					break;
				}       
			case PBT_POWERSTATUSCHANGE:
				//DebugOut(TEXT("PWM: PBT_POWERSTATUSCHANGE\r\n"));
				break;

			case PBT_POWERINFOCHANGE:
				{
					PPOWER_BROADCAST_POWER_INFO ppbpi = (PPOWER_BROADCAST_POWER_INFO) pB->SystemPowerState;

					//  RETAILMSG(1, (TEXT("PWM: PBT_POWERINFOCHANGE\r\n")));
					//   RETAILMSG(1, (TEXT("PWM: \tAC line status %u, battery flag %u, backup flag %u, %d levels\r\n"),
					//          ppbpi->bACLineStatus, ppbpi->bBatteryFlag, 
					//          ppbpi->bBackupBatteryFlag, ppbpi->dwNumLevels));
					break;
				}

			default:
				//DEBUGMSG(1, (TEXT("PWM: Unknown Message:%d\r\n"), pB->Message));
				break;
			}
		}
	}
	// We shouldn't be here
	if ( g_hPMNotifications )
	{
		StopPowerNotifications(g_hPMNotifications);
		g_hPMNotifications = NULL;
	}
	if ( g_hPMReadMsgQ )
	{
		CloseMsgQueue(g_hPMReadMsgQ);
		g_hPMReadMsgQ = NULL;
	}

	DebugOut(_T("ResumeMonThread Exit\r\n"));

	return 0;
}

VOID ReleasePMThread(VOID)
{
	g_FlagExitThrd = TRUE;

	if ( g_hPMNotifications )
	{
		StopPowerNotifications(g_hPMNotifications);
		g_hPMNotifications = NULL;
	}
	if ( g_hPMReadMsgQ )
	{
		CloseMsgQueue(g_hPMReadMsgQ);
		g_hPMReadMsgQ = NULL;
	}

	return;
}

[OenAuth.Net]

楼上好强，研究一下

[胡摩西]

3楼确实强悍，研究下....

[sevenzhy]

收藏，学习了。

[胡摩西]

貌似3楼的方法就是开一个线程不停的监测电源状况？

[胡摩西]

需要包含哪些头呢？msdn上面居然没有

[载舟之水]

[Quote=引用 7 楼 huke1987 的回复:]
貌似3楼的方法就是开一个线程不停的监测电源状况？
[/Quote]

严格地讲不能这么看，因为是你主动请求系统发PM消息到你的队列里，而你的程序只是不停读消息循环而不是轮询。

MSDN当然不会有什么Windows Mobile的资料，大家都是看Windows Mobile 6 Documentation.chm的
不然怎么开发。

#include <pm.h>
#include <msgqueue.h>
#include "windev.h"

[OenAuth.Net]

待机重新唤醒问题，一直都是WM比较棘手的问题之一呀～～～～

帮顶了。

我以前的做法是用定时器监视电池状态（GetSystemPowerState)，不过效果不理想

[胡摩西]

[Quote=引用 1 楼 anglecloudy 的回复:]
待机重新唤醒问题，一直都是WM比较棘手的问题之一呀～～～～

帮顶了。

我以前的做法是用定时器监视电池状态（GetSystemPowerState)，不过效果不理想
[/Quote]
我看MSN的监测做的比较好。那个过程会不会触发某个窗口事件呢？我有一半哦笨的方法就是做个timer不停的监测，但是不划算（哦，这个和你那个方法差不多）。

[胡摩西]

谢谢nbcool
(载舟之水)