Red Bear OS
4ba511830f
logd scheme.rs: - Kernel log reader: don't break loop on 0-byte read. /scheme/sys/log presents a snapshot; breaking loses all future entries. Now polls with a 50ms sleep on drain, continuing to capture new kernel logs. Also slice buffer to actual bytes read to avoid processing stale data. - read(): return EBADF instead of silent Ok(0) stub. Logd handles are write-only sinks; reading is not a valid operation. - fcntl(): return ENOSYS instead of silent Ok(0). No fcntl operations are implemented for log handles. - fsync(): remove TODO comment; behavior (Ok(())) is correct since the output channel guarantees FIFO delivery. ipcd uds/stream.rs: - events(): remove 'TODO: block on write buffer'. Backpressure is now applied at the scheme level. - fevent(): filter EVENT_WRITE based on peer receive buffer fullness against sender's SO_SNDBUF. Prevents busy-spin when buffer is full. - write_inner(): check backpressure before accepting data. Return EAGAIN (non-blocking) or EWOULDBLOCK (blocking) when peer buffer would exceed SO_SNDBUF limit. Only applies to established connections. - handle_sendmsg(): same backpressure check for sendmsg path. initfs tools/src/lib.rs: - Replace hardcoded PAGE_SIZE=4096 constant with runtime detection via sysconf(_SC_PAGESIZE). Handles 16K/64K page ARM hardware correctly. Falls back to 4096 with logged warning if sysconf fails or returns an invalid value.
Base
Repository containing various system daemons, that are considered fundamental for the OS.
You can see what each component does in the following list:
- audiod : Daemon used to process the sound drivers audio
- bootstrap : First code that the kernel executes, responsible for spawning the init daemon
- daemon : Redox daemon library
- drivers
- init : Daemon used to start most system components and programs
- initfs : Filesystem with the necessary system components to run RedoxFS
- ipcd : Daemon used for inter-process communication
- logd : Daemon used to log system components and daemons
- netstack : Daemon used for networking
- ptyd : Daemon used for pseudo-terminal
- ramfs : RAM filesystem
- randd : Daemon used for random number generation
- zerod : Daemon used to discard all writes and fill read buffers with zero
How To Contribute
To learn how to contribute you need to read the following document:
If you want to contribute to drivers read its README
Development
To learn how to do development with these system components inside the Redox build system you need to read the Build System and Coding and Building pages.
How To Build
It is recommended to build this system component via the Redox build system, you can learn how to do it on the Building Redox page.
To build and test outside the build system, install redoxer then use check.sh script to build or test:
./check.sh- Check build for x86_64./check.sh --arch=ARCH- Check build for specific ARCH (aarch64,i586,riscv64gc)./check.sh --all- Check build for all ARCH./check.sh --test- Check the base system boots up on x86_64
You can also use make install to inspect the content on ./sysroot, or make test-gui to test booting with orbital interactively.