1 #ifndef _DEFILE_H 2 #define _DEFILE_H 3 /*------------------------------------------------------------------------- 4 * drawElements Utility Library 5 * ---------------------------- 6 * 7 * Copyright 2014 The Android Open Source Project 8 * 9 * Licensed under the Apache License, Version 2.0 (the "License"); 10 * you may not use this file except in compliance with the License. 11 * You may obtain a copy of the License at 12 * 13 * http://www.apache.org/licenses/LICENSE-2.0 14 * 15 * Unless required by applicable law or agreed to in writing, software 16 * distributed under the License is distributed on an "AS IS" BASIS, 17 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 18 * See the License for the specific language governing permissions and 19 * limitations under the License. 20 * 21 *//*! 22 * \file 23 * \brief File abstraction. 24 *//*--------------------------------------------------------------------*/ 25 26 #include "deDefs.h" 27 28 DE_BEGIN_EXTERN_C 29 30 /* File types. */ 31 typedef struct deFile_s deFile; 32 33 typedef enum deFileMode_e 34 { 35 DE_FILEMODE_READ = (1<<0), /*!< Read access to file. */ 36 DE_FILEMODE_WRITE = (1<<2), /*!< Write access to file. */ 37 DE_FILEMODE_CREATE = (1<<3), /*!< Create file if it doesn't exist. Requires DE_FILEMODE_WRITE. */ 38 DE_FILEMODE_OPEN = (1<<4), /*!< Open file if it exists. */ 39 DE_FILEMODE_TRUNCATE = (1<<5) /*!< Truncate content of file. Requires DE_FILEMODE_OPEN. */ 40 } deFileMode; 41 42 typedef enum deFileFlag_e 43 { 44 DE_FILE_NONBLOCKING = (1<<0), /*!< Set to non-blocking mode. Not supported on Win32! */ 45 DE_FILE_CLOSE_ON_EXEC = (1<<1) 46 } deFileFlag; 47 48 typedef enum deFileResult_e 49 { 50 DE_FILERESULT_SUCCESS = 0, 51 DE_FILERESULT_END_OF_FILE = 1, 52 DE_FILERESULT_WOULD_BLOCK = 2, 53 DE_FILERESULT_ERROR = 3, 54 55 DE_FILERESULT_LAST 56 } deFileResult; 57 58 typedef enum deFilePosition_e 59 { 60 DE_FILEPOSITION_BEGIN = 0, 61 DE_FILEPOSITION_END = 1, 62 DE_FILEPOSITION_CURRENT = 2, 63 64 DE_FILEPOSITION_LAST 65 } deFilePosition; 66 67 /* File API. */ 68 69 deBool deFileExists (const char* filename); 70 deBool deDeleteFile (const char* filename); 71 72 deFile* deFile_create (const char* filename, deUint32 mode); 73 deFile* deFile_createFromHandle (deUintptr handle); 74 void deFile_destroy (deFile* file); 75 76 deBool deFile_setFlags (deFile* file, deUint32 flags); 77 78 deInt64 deFile_getPosition (const deFile* file); 79 deBool deFile_seek (deFile* file, deFilePosition base, deInt64 offset); 80 deInt64 deFile_getSize (const deFile* file); 81 82 deFileResult deFile_read (deFile* file, void* buf, deInt64 bufSize, deInt64* numRead); 83 deFileResult deFile_write (deFile* file, const void* buf, deInt64 bufSize, deInt64* numWritten); 84 85 DE_END_EXTERN_C 86 87 #endif /* _DEFILE_H */ 88