Read v0.1.0
Reads bytes from a file descriptor.
Package: Bsd
Signature
func Read(fd: int32, buffer: *opaque, count: uint) -> int64;
Parameters
| Name | Type | Description |
|---|---|---|
fd | int32 | File descriptor to read. |
buffer | *opaque | Writable destination for up to count bytes. |
count | uint | Maximum number of bytes to read. |
Returns
int64 - bytes read on success, 0 at end of file, or a negative errno value on failure. A successful call may return fewer than count bytes.
Example
import Bsd::{ Read, StdIn };
func Main() -> int {
var buffer: char8[256];
let result = Read(StdIn, buffer.data, 256u);
if result == 0i64 {
// End of file.
}
return 0;
}