windows-nt/Source/XPSP1/NT/net/snmp/subagent/snmpevnt/evntcmd/snmpctrl.cpp
2020-09-26 16:20:57 +08:00

143 lines
3.7 KiB
C++

#include <stdafx.h>
#include "Errors.h"
#include "SNMPCtrl.h"
#include "EventCmd.h"
CSNMPController gSNMPController;
CSNMPController::CSNMPController()
{
m_hSNMPService = NULL;
m_hServiceController = NULL;
}
CSNMPController::~CSNMPController()
{
if (m_hSNMPService != NULL)
CloseServiceHandle(m_hSNMPService);
if (m_hServiceController != NULL)
CloseServiceHandle(m_hServiceController);
}
DWORD CSNMPController::LoadSvcHandle()
{
if (m_hSNMPService == NULL)
{
if (m_hServiceController == NULL)
{
m_hServiceController = OpenSCManager(
gCommandLine.m_szSystem,
"ServicesActive",
GENERIC_EXECUTE);
if (m_hServiceController == NULL)
return _E(GetLastError(), IDS_ERR25);
}
m_hSNMPService = OpenService(
m_hServiceController,
"SNMP",
SERVICE_CONTROL_INTERROGATE | SERVICE_START | SERVICE_STOP);
if (m_hSNMPService == NULL)
return _E(GetLastError(), IDS_ERR26);
}
return ERROR_SUCCESS;
}
BOOL CSNMPController::IsSNMPRunning()
{
SERVICE_STATUS snmpStatus;
if (LoadSvcHandle() != ERROR_SUCCESS)
return FALSE;
if (!QueryServiceStatus(m_hSNMPService, &snmpStatus))
return _E(GetLastError(), IDS_ERR27);
_W(WARN_TRACK, IDS_TRCK_WRN49, snmpStatus.dwCurrentState);
return snmpStatus.dwCurrentState == SERVICE_RUNNING;
}
DWORD CSNMPController::StartSNMP()
{
DWORD retCode;
SERVICE_STATUS svcStatus;
DWORD dwRetries;
if ((retCode = LoadSvcHandle()) != ERROR_SUCCESS)
return retCode;
if (!StartService(m_hSNMPService, 0, NULL))
return _E(GetLastError(), IDS_ERR28);
for (dwRetries = 10; dwRetries > 0; dwRetries--)
{
printf("."); fflush(stdout);
if (!QueryServiceStatus(m_hSNMPService, &svcStatus))
return _E(GetLastError(), IDS_ERR29);
if (svcStatus.dwCurrentState == SERVICE_RUNNING)
break;
if (svcStatus.dwCurrentState == SERVICE_START_PENDING)
{
if (svcStatus.dwWaitHint < 200)
svcStatus.dwWaitHint = 200;
if (svcStatus.dwWaitHint > 1000)
svcStatus.dwWaitHint = 1000;
Sleep(svcStatus.dwWaitHint);
}
else
return _E(ERROR_INVALID_STATE, IDS_ERR06, svcStatus.dwWaitHint);
}
printf("\n");
return retCode;
}
DWORD CSNMPController::StopSNMP()
{
DWORD retCode;
SERVICE_STATUS svcStatus;
DWORD dwRetries;
if ((retCode = LoadSvcHandle()) != ERROR_SUCCESS)
return retCode;
if (!ControlService(m_hSNMPService, SERVICE_CONTROL_STOP, &svcStatus))
{
retCode = GetLastError();
if (retCode == ERROR_SERVICE_NOT_ACTIVE)
{
_W(WARN_TRACK, IDS_TRCK_WRN50);
return ERROR_SUCCESS;
}
return _E(GetLastError(), IDS_ERR30);
}
for (dwRetries = 10; dwRetries > 0; dwRetries--)
{
printf("."); fflush(stdout);
if (!QueryServiceStatus(m_hSNMPService, &svcStatus))
return _E(GetLastError(), IDS_ERR31);
if (svcStatus.dwCurrentState == SERVICE_STOPPED)
break;
if (svcStatus.dwCurrentState == SERVICE_STOP_PENDING)
{
if (svcStatus.dwWaitHint < 200)
svcStatus.dwWaitHint = 200;
if (svcStatus.dwWaitHint > 1000)
svcStatus.dwWaitHint = 1000;
Sleep(svcStatus.dwWaitHint);
}
else
return _E(ERROR_INVALID_STATE, IDS_ERR06, svcStatus.dwWaitHint);
}
printf("\n");
if (dwRetries == 0)
return _E(ERROR_TIMEOUT, IDS_ERR07);
return retCode;
}