Last change
on this file since 2380 was
1757,
checked in by ymipsl, 5 years ago
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Implement one sided communication in client/server protocol to avoid dead-lock when some buffer are full.
YM
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-
Property copyright set to
Software name : XIOS (Xml I/O Server) http://forge.ipsl.jussieu.fr/ioserver Creation date : January 2009 Licence : CeCCIL version2 see license file in root directory : Licence_CeCILL_V2-en.txt or http://www.cecill.info/licences/Licence_CeCILL_V2-en.html Holder : CEA/LSCE (Laboratoire des Sciences du CLimat et de l'Environnement) CNRS/IPSL (Institut Pierre Simon Laplace) Project Manager : Yann Meurdesoif yann.meurdesoif@cea.fr
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File size:
1.2 KB
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1 | #ifndef __BUFFER_SERVER_HPP__ |
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2 | #define __BUFFER_SERVER_HPP__ |
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3 | |
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4 | #include "xios_spl.hpp" |
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5 | #include "buffer.hpp" |
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6 | #include "mpi.hpp" |
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7 | #include "cxios.hpp" |
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8 | |
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9 | namespace xios |
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10 | { |
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11 | class CServerBuffer |
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12 | { |
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13 | public: |
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14 | CServerBuffer(vector<MPI_Win>& windows, vector<MPI_Aint>& winAddress, int windowsRank, StdSize bufSize) ; |
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15 | ~CServerBuffer() ; |
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16 | |
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17 | bool isBufferFree(size_t count) ; |
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18 | void* getBuffer(size_t count) ; |
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19 | void freeBuffer(size_t count) ; |
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20 | void createWindows(MPI_Comm oneSidedComm) ; |
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21 | bool freeWindows(void) ; |
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22 | bool getBufferFromClient(size_t timeLine, char* & buffer, size_t& count) ; |
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23 | bool isBufferEmpty(void) ; |
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24 | void updateCurrentWindows(void) ; |
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25 | void lockBuffer(void) ; |
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26 | void unlockBuffer(void) ; |
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27 | void notifyClientFinalize(void) ; |
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28 | private: |
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29 | char* buffer; |
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30 | size_t first; // first occupied element |
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31 | size_t current; // first free element |
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32 | size_t end; |
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33 | size_t size; |
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34 | size_t used ; // count of element occupied |
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35 | std::vector<MPI_Win> windows_ ; |
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36 | std::vector<MPI_Aint> winAddress_ ; |
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37 | |
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38 | int currentWindows ; |
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39 | bool hasWindows ; |
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40 | int windowsRank_ ; |
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41 | }; |
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42 | } |
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43 | |
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44 | #endif |
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