diff options
Diffstat (limited to 'src/blocking')
-rw-r--r-- | src/blocking/mod.rs | 4 | ||||
-rw-r--r-- | src/blocking/reader.rs | 46 | ||||
-rw-r--r-- | src/blocking/writer.rs | 43 |
3 files changed, 93 insertions, 0 deletions
diff --git a/src/blocking/mod.rs b/src/blocking/mod.rs new file mode 100644 index 0000000..1ffaccd --- /dev/null +++ b/src/blocking/mod.rs @@ -0,0 +1,4 @@ +pub mod reader; +pub use reader::Reader; +pub mod writer; +pub use writer::Writer; diff --git a/src/blocking/reader.rs b/src/blocking/reader.rs new file mode 100644 index 0000000..86c348d --- /dev/null +++ b/src/blocking/reader.rs @@ -0,0 +1,46 @@ +/// Reads ttyrec frames from a `std::io::Read` instance. +pub struct Reader<T: std::io::Read> { + input: T, + parser: crate::Parser, + buf: [u8; 4096], +} + +impl<T: std::io::Read> Reader<T> { + /// Creates a new `Reader` from a `std::io::Read` instance. + pub fn new(input: T) -> Self { + Self { + input, + parser: crate::Parser::new(), + buf: [0; 4096], + } + } + + /// Returns the next parsed frame from the input stream. + /// + /// # Errors + /// * `crate::Error::EOF`: The input stream has been closed. + /// * `crate::Error::Read`: There was an error reading from the input + /// stream. + pub fn read_frame(&mut self) -> crate::Result<crate::Frame> { + loop { + if let Some(frame) = self.parser.next_frame() { + return Ok(frame); + } + let bytes = self + .input + .read(&mut self.buf) + .map_err(|source| crate::Error::Read { source })?; + if bytes == 0 { + return Err(crate::Error::EOF); + } + self.parser.add_bytes(&self.buf[..bytes]); + } + } + + /// How much the timestamps in this file should be offset by. + /// + /// See `Parser::offset`. + pub fn offset(&self) -> Option<std::time::Duration> { + self.parser.offset() + } +} diff --git a/src/blocking/writer.rs b/src/blocking/writer.rs new file mode 100644 index 0000000..5dade25 --- /dev/null +++ b/src/blocking/writer.rs @@ -0,0 +1,43 @@ +/// Writes ttyrec frames to a `std::io::Write` instance. +pub struct Writer<T: std::io::Write> { + output: T, + creator: crate::Creator, +} + +impl<T: std::io::Write> Writer<T> { + /// Creates a new `Writer` from a `std::io::Write` instance. + pub fn new(output: T) -> Self { + Self { + output, + creator: crate::Creator::new(), + } + } + + /// Writes a new frame to the output stream, using the current time and + /// given data. + /// + /// # Errors + /// * `crate::Error::Write`: There was an error writing to the input + /// stream. + pub fn frame(&mut self, data: &[u8]) -> crate::Result<()> { + self.frame_at(std::time::Instant::now(), data) + } + + /// Writes a new frame to the output stream, using the given time and + /// data. + /// + /// # Errors + /// * `crate::Error::Write`: There was an error writing to the input + /// stream. + pub fn frame_at( + &mut self, + cur_time: std::time::Instant, + data: &[u8], + ) -> crate::Result<()> { + let frame = self.creator.frame_at(cur_time, data); + let bytes: Vec<u8> = frame.try_into()?; + self.output + .write_all(&bytes) + .map_err(|source| crate::Error::Write { source }) + } +} |