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cc #7887
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queue shared by each scheduler. Now there is a separate work queue for each scheduler, and work is "stolen" from other queues when it is exhausted locally.
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- Made naming schemes consistent between Option, Result and Either
- Changed Options Add implementation to work like the maybe monad (return None if any of the inputs is None)
- Removed duplicate Option::get and renamed all related functions to use the term `unwrap` instead
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multicast functions now take IpAddr (without port), because they dont't
need port.
Uv* types renamed:
* UvIpAddr -> UvSocketAddr
* UvIpv4 -> UvIpv4SocketAddr
* UvIpv6 -> UvIpv6SocketAddr
"Socket address" is a common name for (ip-address, port) pair (e.g. in
sockaddr_in struct).
P. S. Are there any backward compatibility concerns? What is std::rt module, is it a part of public API?
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this has been replaced by `for`
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OS X defaults the ulimit for open files to 256 for programs launched
from the Terminal (GUI apps get a higher default). Unfortunately this is
too low for the rt tests, which deliberately overcommit and create a lot
of threads (which means a lot of schedulers, and each scheduler needs at
least 2 fds).
By calling sysctl() and setrlimit() we can bump the fd limit up to the
maximum allowed (on stock OS X it's 10240).
Fixes #7772.
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This workaround was less than ideal. A better solution is to raise the
fd limit.
This reverts commit 49b72bdd77916e27aaf95909516702c1450f11ac.
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multicast functions now take IpAddr (without port), because they dont't
need port.
Uv* types renamed:
* UvIpAddr -> UvSocketAddr
* UvIpv4 -> UvIpv4SocketAddr
* UvIpv6 -> UvIpv6SocketAddr
"Socket address" is a common name for (ip-address, port) pair (e.g. in
sockaddr_in struct).
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scheduler functions slightly
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old design the TLS held the scheduler struct, and the scheduler struct
held the active task. This posed all sorts of weird problems due to
how we wanted to use the contents of TLS. The cleaner approach is to
leave the active task in TLS and have the task hold the scheduler. To
make this work out the scheduler has to run inside a regular task, and
then once that is the case the context switching code is massively
simplified, as instead of three possible paths there is only one. The
logical flow is also easier to follow, as the scheduler struct acts
somewhat like a "token" indicating what is active.
These changes also necessitated changing a large number of runtime
tests, and rewriting most of the runtime testing helpers.
Polish level is "low", as I will very soon start on more scheduler
changes that will require wiping the polish off. That being said there
should be sufficient comments around anything complex to make this
entirely respectable as a standalone commit.
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Makes it more obvious what's going on
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Some notes about the commits.
Exit code propagation commits:
* ```Reimplement unwrap()``` has the same old code from ```arc::unwrap``` ported to use modern atomic types and finally (it's considerably nicer this way)
* ```Add try_unwrap()``` has some new slightly-tricky (but pretty simple) concurrency primitive code
* ```Add KillHandle``` and ```Add kill::Death``` are the bulk of the logic.
Task killing commits:
* ```Implement KillHandle::kill() and friends```, ```Do a task-killed check```, and ```Add BlockedTask``` implement the killing logic;
* ```Change the HOF context switchers``` turns said logic on
Linked failure commits:
* ```Replace *rust_task ptrs``` adapts the taskgroup code to work for both runtimes
* ```Enable taskgroup code``` does what it says on the tin.
r? @brson
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Too much overcommit here exhausts the low fd limit on OS X.
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Too much overcommit here exhausts the low fd limit on OS X.
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Conflicts:
src/libstd/rt/test.rs
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Conflicts:
src/libstd/rt/test.rs
src/rt/rustrt.def.in
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of tasks as a component of coroutines.
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Conflicts:
src/libstd/rt/comm.rs
src/libstd/rt/mod.rs
src/libstd/rt/sched.rs
src/libstd/rt/task.rs
src/libstd/rt/test.rs
src/libstd/rt/tube.rs
src/libstd/rt/uv/uvio.rs
src/libstd/rt/uvio.rs
src/libstd/task/spawn.rs
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Conflicts:
src/libstd/rt/sched.rs
src/libstd/rt/task.rs
src/libstd/rt/test.rs
src/libstd/task/mod.rs
src/libstd/task/spawn.rs
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pinned to them
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have been planned for, and no forwarding of tasks off special schedulers is supported.
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Part of #3853
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This properly distributes the load now
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Conflicts:
src/libstd/rt/sched.rs
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This only changes the directory names; it does not change the "real"
metadata names.
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