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File indexing completed on 2023-03-17 11:26:53
0001 #ifndef STORAGE_FACTORY_IO_FLAGS_H 0002 #define STORAGE_FACTORY_IO_FLAGS_H 0003 0004 namespace edm::storage { 0005 0006 namespace IOFlags { 0007 /// File open mode flags. 0008 enum OpenMode { 0009 OpenRead = 1, /*< Open for read access. */ 0010 OpenWrite = 2, /*< Open for write access. */ 0011 OpenNonBlock = 4, /*< Open in non-blocking mode. 0012 Neither the #open() nor any 0013 subsequent operation on the 0014 returned descriptor cause the 0015 process to wait. Applied to 0016 opening a named pipe (a FIFO) 0017 allows the pipe to be opened 0018 without waiting for the other end 0019 to be connected. */ 0020 OpenAppend = 8, /*< Writes to the file should always 0021 append to the end of the file. */ 0022 OpenUnbuffered = 16, /*< No write caching should be done on 0023 this file; may result in blocking 0024 the process until the data has 0025 actually been written. */ 0026 OpenCreate = 32, /*< Create the file if it does not exist. */ 0027 OpenExclusive = 64, /*< With #ModeCreate specifies that 0028 the creation should fali if the 0029 file exists. */ 0030 OpenTruncate = 128, /*< If the file exists, truncate it to 0031 zero size. */ 0032 OpenNotCTTY = 256, /*< If the specified file is a 0033 terminal device, do not make it 0034 the controlling terminal for the 0035 process even if the process does 0036 not have one yet. */ 0037 OpenWrap = 512 /*< Wrap the file if at all possible 0038 with a local file. */ 0039 }; 0040 } // namespace IOFlags 0041 } // namespace edm::storage 0042 #endif // STORAGE_FACTORY_IO_FLAGS_H
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