nstd_fs_file_read

nstd_sys::fs::file

Function nstd_fs_file_read 

Source 
#[unsafe(no_mangle)]
pub unsafe extern "C" fn nstd_fs_file_read(
    file: &mut NSTDFile,
    buffer: &mut NSTDSliceMut,
) -> NSTDIOResult
Available on crate feature fs only.
Expand description

Reads some data from an open file into a buffer.

§Parameters:

  • NSTDFile *file - A handle to the opened file.

  • NSTDSliceMut *buffer - The buffer to start filling with data from the file.

§Returns

NSTDIOResult read - The number of bytes read from handle on success, or the I/O operation error code on failure.

§Safety

buffer’s data must be valid for writes.