mirror of
https://github.com/c3lang/c3c.git
synced 2026-02-27 20:11:17 +00:00
2ac213a3ce
ReadBuffer and WriterBuffer buffer stream reads and writes to a stream. Useful in situations where the underlying stream is sensitive to the number of read or write calls. Signed-off-by: Pierre Curto <pierre.curto@gmail.com>
69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
module std::io @test;
|
|
|
|
const DATA = "Lorem ipsum blandit.";
|
|
|
|
fn void! readbuffer_large()
|
|
{
|
|
ByteReader src;
|
|
src.init(DATA);
|
|
char[DATA.len] buf;
|
|
ReadBuffer reader_buf;
|
|
reader_buf.init(src.as_stream(), buf[..]);
|
|
|
|
char[DATA.len] bytes;
|
|
usz n = reader_buf.read(bytes[..])!;
|
|
|
|
assert(n == DATA.len, "large read failed: got %d; want %d", n, DATA.len);
|
|
String got = (String)bytes[..];
|
|
assert(got == DATA, "large read failed: got %d; want %d", got, DATA);
|
|
}
|
|
|
|
fn void! readbuffer()
|
|
{
|
|
ByteReader src;
|
|
src.init(DATA);
|
|
char[3] buf;
|
|
ReadBuffer reader_buf;
|
|
reader_buf.init(src.as_stream(), buf[..]);
|
|
|
|
ByteWriter bw;
|
|
bw.tinit();
|
|
|
|
usz n = reader_buf.as_stream().copy_to(bw.as_stream())!;
|
|
|
|
assert(n == DATA.len, "got %d; want %d", n, DATA.len);
|
|
String got = bw.as_str();
|
|
assert(got == DATA, "got %d; want %d", got, DATA);
|
|
}
|
|
|
|
fn void! writebuffer_large()
|
|
{
|
|
ByteWriter out;
|
|
out.tinit();
|
|
char[16] buf;
|
|
WriteBuffer write_buf;
|
|
write_buf.init(out.as_stream(), buf[..]);
|
|
|
|
usz n = write_buf.write(DATA)!;
|
|
|
|
assert(n == DATA.len, "large write failed: got %d; want %d", n, DATA.len);
|
|
String got = out.as_str();
|
|
assert(got == DATA, "large write failed: got %d; want %d", got, DATA);
|
|
}
|
|
|
|
fn void! writebuffer()
|
|
{
|
|
ByteReader br;
|
|
br.init(DATA);
|
|
ByteWriter out;
|
|
out.tinit();
|
|
char[3] buf;
|
|
WriteBuffer write_buf;
|
|
write_buf.init(out.as_stream(), buf[..]);
|
|
|
|
usz n = br.as_stream().copy_to(write_buf.as_stream())!;
|
|
|
|
assert(n == DATA.len, "got %d; want %d", n, DATA.len);
|
|
String got = out.as_str();
|
|
assert(got == DATA, "got %d; want %d", got, DATA);
|
|
} |