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70 lines
1.7 KiB
C++
70 lines
1.7 KiB
C++
/* Copyright (C) 2014 InfiniDB, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#pragma once
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <string>
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namespace idbdatafile
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{
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/**
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* Take an fopen() style mode string and return the corresponding flags
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* ala open()
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*/
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inline int modeStrToFlags(const char* mode)
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{
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std::string modestr = mode;
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// this could easily be migrated to a lookup table if performance
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// ever became a concern, but for now this is fine.
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if (modestr == "r" || modestr == "rb")
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{
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return O_RDONLY;
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}
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else if (modestr == "r+" || modestr == "r+b")
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{
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return O_RDWR;
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}
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else if (modestr == "w" || modestr == "wb")
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{
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return O_WRONLY | O_CREAT | O_TRUNC;
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}
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else if (modestr == "w+" || modestr == "w+b")
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{
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return O_RDWR | O_CREAT | O_TRUNC;
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}
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else if (modestr == "a" || modestr == "ab")
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{
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return O_WRONLY | O_CREAT | O_APPEND;
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}
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else if (modestr == "a+" || modestr == "a+b")
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{
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return O_RDWR | O_CREAT | O_APPEND;
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}
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else
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{
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// error
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return -1;
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}
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}
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} // namespace idbdatafile
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