This PR implements AsyncReadRent and AsyncWriteRent for File, completing the following tasks:
[x] Updated op::read<T> and op::write<T> to support reading/writing files using the file pointer.
Also modified the implementation of read and read_at on Windows:
Utilized the OVERLAPPED struct to reduce the number of syscalls.
[x] Fixed the bug where readv and writev would always start from the beginning of the file.
[x] Removed the incorrect implementation of readv and writev on Windows.
Simulated readv and writev by continually calling the read and write functions.
[x] Updated the documentation for AsyncWriteRent and AsyncReadRent.
[x] Due to the lack of readv/writev-like syscalls on the Windows platform, the structure of src/fs/file.rs was changed for better readability of the implementations on different platforms.
Xuanwo
commented
1 day ago
This PR implements AsyncReadRent and AsyncWriteRent for File, completing the following tasks:
op::read<T>andop::write<T>to support reading/writing files using the file pointer.OVERLAPPEDstruct to reduce the number of syscalls.readvandwritevwould always start from the beginning of the file.readvandwritevon Windows.readvandwritevby continually calling thereadandwritefunctions.AsyncWriteRentandAsyncReadRent.readv/writev-like syscalls on the Windows platform, the structure ofsrc/fs/file.rswas changed for better readability of the implementations on different platforms.Other details are shown in the code.
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