This section explains the Memory File Archive that is prepared by default in the file system.
The basic operations of the Memory File Archive are outlined below:
- It is loaded automatically the first time the FS_CreateFileFromMemory function is called.
- It is accessed at the memory location specified by the MI_CpuCopy8 function, making it possible to manipulate it as a file.
Cache disabling and cleaning are not performed internally. Other than file reading/writing, it does not support any manipulations (general directory and path-related commands). The archive name is not registered in the file system.
Operations are always conducted synchronously, even when the asynchronous versions of functions are called.
The Memory File Archive is implemented as follows:
Read Callback: Data is read from memory by the MI_CpuCopy8 function. The response is always FS_RESULT_SUCCESS.
Write Callback: Data is written to memory by the MI_CpuCopy8 function. The response is always FS_RESULT_SUCCESS.
User Procedures:
FS_COMMAND_SEEKDIR
|
These commands are not supported. Issuing any of them always returns FS_RESULT_UNSUPPORTED. |
| Other | Returns FS_RESULT_PROC_UNKNOWN and defaults to default commands. |
FSArchive
FS_ARCHIVE_PROC_FUNC
FS_SetArchiveProc
2005/06/28 Initial version.
CONFIDENTIAL