commit | afb91fcefe12cfba2761edb3e2e3fbb953704d5c | [log] [tgz] |
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author | Jeff Brown <jeffbrown@google.com> | Wed Nov 21 20:20:15 2018 -0800 |
committer | CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> | Thu Dec 13 20:37:27 2018 +0000 |
tree | 14d33698e7063286469223cf52ca58ff29691d0f | |
parent | c088adf63db771f422973e71dd2f9cfdc6886535 [diff] |
[fit][scope] Add a mechanism for scoping promises. fit::scope is a mechanism for wrapping promises such that they will automatically be abandoned if the scope is exited before they complete. Can be very useful when handing out promises that capture references to "this" or to local variables. Test: fit-test Change-Id: I6fc510f9d90ac4b57cae55a8e9f0a40f30b7ffd8
Zircon is the core platform that powers the Fuchsia OS. Zircon is composed of a microkernel (source in kernel/...) as well as a small set of userspace services, drivers, and libraries (source in system/...) necessary for the system to boot, talk to hardware, load userspace processes and run them, etc. Fuchsia builds a much larger OS on top of this foundation.
The canonical Zircon Git repository is located at: https://fuchsia.googlesource.com/zircon
A read-only mirror of the code is present at: https://github.com/fuchsia-mirror/zircon
The Zircon Kernel provides syscalls to manage processes, threads, virtual memory, inter-process communication, waiting on object state changes, and locking (via futexes).
Currently there are some temporary syscalls that have been used for early bringup work, which will be going away in the future as the long term syscall API/ABI surface is finalized. The expectation is that there will be about 100 syscalls.
Zircon syscalls are generally non-blocking. The wait_one, wait_many port_wait and thread sleep being the notable exceptions.
This page is a non-comprehensive index of the zircon documentation.