81acff62c6
Previously, since we passed B_RELATIVE_TIMEOUT unconditionally, a timeout of 0 would mean that it would return as soon as there was CPU time available (so, usually, instantly.) This usually was not a "problem" in that it caused broken behavior, but it would result in exceptionally high CPU usage. At first I implemented this correctly (i.e. a timeout of 0 will block until explicitly woken up) but then discovered that our implementation of these functions creates subtle race conditions compared to their FreeBSD counterparts, and so to avoid deadlocks, a timeout of 1 second is imposed. For situations where there are deadlocks due to race conditions, this will make them painfully obvious (e.g. all network transfers stalling for a second every 2-3 seconds or so.)
Haiku
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Haiku is an open-source operating system that specifically targets personal computing. Inspired by the BeOS, Haiku is fast, simple to use, easy to learn and yet very powerful.
Goals
- Sensible defaults with minimal configuration required.
- Clean, clear, concise code.
- Unified desktop environment.
Trying Haiku
Haiku provides pre-built nightly images and release images. Haiku is compatible with a large variety of hardware, but in case you don't want to "take the plunge" and install Haiku on bare metal, you can install it on a virtual machine (VM) instead. If you've never used a VM before, you can follow one of the "Emulating Haiku" guides.
Compiling Haiku
See ReadMe.Compiling.
Contributing
Haiku is a meritocratic open source project with a large variety of tasks. Even if you can't write code, you can still help! Haiku needs designers, (technical) writers, translators, testers... Get involved and help out!
Contributing code
If you're submitting a patch to us, please make sure you're following the patch submitting guidelines.
If you're having trouble finding something in the source tree, you can use one of our OpenGrok servers:
- http://xref.plausible.coop/ (provided by Landon Fuller)
- http://code.metager.de/source/xref/haiku (provided by MetaGer)
Contributing documentation
The main piece of documentation that still needs work are the API docs (found
in the tree at docs/user). Just find an undocumented class, write
documentation for it, and submit a patch.
Contributing translations
See wiki:i18n.
Contributing software ports
See HaikuPorts.
Contributing to our infrastructure
See Infrastructure.