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Diffstat (limited to 'sysroot/usr/include/android/asset_manager.h')
-rw-r--r-- | sysroot/usr/include/android/asset_manager.h | 140 |
1 files changed, 140 insertions, 0 deletions
diff --git a/sysroot/usr/include/android/asset_manager.h b/sysroot/usr/include/android/asset_manager.h new file mode 100644 index 0000000..57dd7cb --- /dev/null +++ b/sysroot/usr/include/android/asset_manager.h @@ -0,0 +1,140 @@ +/* + * Copyright (C) 2010 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + + +#ifndef ANDROID_ASSET_MANAGER_H +#define ANDROID_ASSET_MANAGER_H + +#include <sys/types.h> + +#ifdef __cplusplus +extern "C" { +#endif + +struct AAssetManager; +typedef struct AAssetManager AAssetManager; + +struct AAssetDir; +typedef struct AAssetDir AAssetDir; + +struct AAsset; +typedef struct AAsset AAsset; + +/* Available modes for opening assets */ +enum { + AASSET_MODE_UNKNOWN = 0, + AASSET_MODE_RANDOM = 1, + AASSET_MODE_STREAMING = 2, + AASSET_MODE_BUFFER = 3 +}; + + +/** + * Open the named directory within the asset hierarchy. The directory can then + * be inspected with the AAssetDir functions. To open the top-level directory, + * pass in "" as the dirName. + * + * The object returned here should be freed by calling AAssetDir_close(). + */ +AAssetDir* AAssetManager_openDir(AAssetManager* mgr, const char* dirName); + +/** + * Open an asset. + * + * The object returned here should be freed by calling AAsset_close(). + */ +AAsset* AAssetManager_open(AAssetManager* mgr, const char* filename, int mode); + +/** + * Iterate over the files in an asset directory. A NULL string is returned + * when all the file names have been returned. + * + * The returned file name is suitable for passing to AAssetManager_open(). + * + * The string returned here is owned by the AssetDir implementation and is not + * guaranteed to remain valid if any other calls are made on this AAssetDir + * instance. + */ +const char* AAssetDir_getNextFileName(AAssetDir* assetDir); + +/** + * Reset the iteration state of AAssetDir_getNextFileName() to the beginning. + */ +void AAssetDir_rewind(AAssetDir* assetDir); + +/** + * Close an opened AAssetDir, freeing any related resources. + */ +void AAssetDir_close(AAssetDir* assetDir); + +/** + * Attempt to read 'count' bytes of data from the current offset. + * + * Returns the number of bytes read, zero on EOF, or < 0 on error. + */ +int AAsset_read(AAsset* asset, void* buf, size_t count); + +/** + * Seek to the specified offset within the asset data. 'whence' uses the + * same constants as lseek()/fseek(). + * + * Returns the new position on success, or (off_t) -1 on error. + */ +off_t AAsset_seek(AAsset* asset, off_t offset, int whence); + +/** + * Close the asset, freeing all associated resources. + */ +void AAsset_close(AAsset* asset); + +/** + * Get a pointer to a buffer holding the entire contents of the assset. + * + * Returns NULL on failure. + */ +const void* AAsset_getBuffer(AAsset* asset); + +/** + * Report the total size of the asset data. + */ +off_t AAsset_getLength(AAsset* asset); + +/** + * Report the total amount of asset data that can be read from the current position. + */ +off_t AAsset_getRemainingLength(AAsset* asset); + +/** + * Open a new file descriptor that can be used to read the asset data. + * + * Returns < 0 if direct fd access is not possible (for example, if the asset is + * compressed). + */ +int AAsset_openFileDescriptor(AAsset* asset, off_t* outStart, off_t* outLength); + +/** + * Returns whether this asset's internal buffer is allocated in ordinary RAM (i.e. not + * mmapped). + */ +int AAsset_isAllocated(AAsset* asset); + + + +#ifdef __cplusplus +}; +#endif + +#endif // ANDROID_ASSET_MANAGER_H |