pub fn write(fd: u64, buffer: &[u8]) -> Result<usize, SysError>Available on neither crate feature
native-simulator nor crate feature stub-syscalls.Expand description
This syscall writes data to a pipe via a file descriptor. The syscall Write writes up to value pointed by length bytes from the buffer, and the actual length of data written is returned.
If buffer is empty and fd is avaliable, then write() can still succeed: A data with a length of 0 is written to the pipe. The peer needs to use a read() syscall to consume the empty data, and read() will returns Ok(0).
Note: available after ckb 2nd hardfork.