Data Fields
| PP_Resource(* | Create )(PP_Instance instance, PP_FileSystemType type) |
| PP_Bool(* | IsFileSystem )(PP_Resource resource) |
| int32_t(* | Open )(PP_Resource file_system, int64_t expected_size, struct PP_CompletionCallback callback) |
| PP_FileSystemType(* | GetType )(PP_Resource file_system) |
Detailed Description
The PPB_FileSystem struct identifies the file system type associated with a file.
Field Documentation
| PP_Resource(* PPB_FileSystem::Create)(PP_Instance instance, PP_FileSystemType type) |
Create() creates a file system object of the given type.
- Parameters:
[in] instance A PP_Instanceidentifying the instance with the file.[in] type A file system type as defined by PP_FileSystemTypeenum (except PP_FILESYSTEMTYPE_ISOLATED, which is currently not supported).
- Returns:
- A
PP_Resourcecorresponding to a file system if successful.
| PP_FileSystemType(* PPB_FileSystem::GetType)(PP_Resource file_system) |
GetType() returns the type of the provided file system.
- Parameters:
[in] file_system A PP_Resourcecorresponding to a file system.
- Returns:
- A
PP_FileSystemTypewith the file system type if valid orPP_FILESYSTEMTYPE_INVALIDif the provided resource is not a valid file system. It is valid to call this function even before Open() completes.
| PP_Bool(* PPB_FileSystem::IsFileSystem)(PP_Resource resource) |
IsFileSystem() determines if the provided resource is a file system.
- Parameters:
[in] resource A PP_Resourcecorresponding to a file system.
- Returns:
PP_TRUEif the resource is aPPB_FileSystem,PP_FALSEif the resource is invalid or some type other thanPPB_FileSystem.
| int32_t(* PPB_FileSystem::Open)(PP_Resource file_system, int64_t expected_size, struct PP_CompletionCallback callback) |
Open() opens the file system.
A file system must be opened before running any other operation on it.
- Parameters:
[in] file_system A PP_Resourcecorresponding to a file system.[in] expected_size The expected size of the file system. Note that this does not request quota; to do that, you must either invoke requestQuota from JavaScript: http://www.html5rocks.com/en/tutorials/file/filesystem/#toc-requesting-quota or set the unlimitedStorage permission for Chrome Web Store apps: http://code.google.com/chrome/extensions/manifest.html#permissions [in] callback A PP_CompletionCallbackto be called upon completion of Open().
- Returns:
- An int32_t containing an error code from
pp_errors.h.
The documentation for this struct was generated from the following file: