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Diffstat (limited to '')
-rw-r--r-- | vendor/syn/tests/repo/progress.rs | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/vendor/syn/tests/repo/progress.rs b/vendor/syn/tests/repo/progress.rs new file mode 100644 index 000000000..28c8a44b1 --- /dev/null +++ b/vendor/syn/tests/repo/progress.rs @@ -0,0 +1,37 @@ +use std::io::{Read, Result}; +use std::time::{Duration, Instant}; + +pub struct Progress<R> { + bytes: usize, + tick: Instant, + stream: R, +} + +impl<R> Progress<R> { + pub fn new(stream: R) -> Self { + Progress { + bytes: 0, + tick: Instant::now() + Duration::from_millis(2000), + stream, + } + } +} + +impl<R: Read> Read for Progress<R> { + fn read(&mut self, buf: &mut [u8]) -> Result<usize> { + let num = self.stream.read(buf)?; + self.bytes += num; + let now = Instant::now(); + if now > self.tick { + self.tick = now + Duration::from_millis(500); + errorf!("downloading... {} bytes\n", self.bytes); + } + Ok(num) + } +} + +impl<R> Drop for Progress<R> { + fn drop(&mut self) { + errorf!("done ({} bytes)\n", self.bytes); + } +} |