63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
/*
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* Copyright: JessMA Open Source (ldcsaa@gmail.com)
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*
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* Author : Bruce Liang
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* Website : https://github.com/ldcsaa
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* Project : https://github.com/ldcsaa/HP-Socket
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* Blog : http://www.cnblogs.com/ldcsaa
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* Wiki : http://www.oschina.net/p/hp-socket
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* QQ Group : 44636872, 75375912
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "PollHelper.h"
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#include "FuncHelper.h"
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long PollForSingleObject(pollfd& pfd, long lTimeout, const sigset_t* pSigSet)
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{
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return PollForMultipleObjects(&pfd, 1, lTimeout, pSigSet);
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}
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long PollForMultipleObjects(pollfd pfds[], int iCount, long lTimeout, const sigset_t* pSigSet)
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{
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ASSERT(iCount > 0 && iCount < (int)(sizeof(LONG) * 8));
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timespec* pts = nullptr;
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if(!IS_INFINITE(lTimeout))
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{
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pts = CreateLocalObject(timespec);
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::MillisecondToTimespec(lTimeout, *pts);
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}
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while(TRUE)
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{
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int rs = NO_EINTR_INT(ppoll(pfds, iCount, pts, pSigSet));
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if(rs <= TIMEOUT) return rs;
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LONG lValue = 0L;
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for(int i = 0; i < iCount; i++)
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{
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pollfd& pfd = pfds[i];
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if(pfd.revents & _POLL_ALL_EVENTS)
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lValue |= (1 << i);
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}
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return lValue;
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}
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}
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