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rt: Implement ThreadPerCore scheduling mode

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Fixes #3465.
This commit is contained in:
Philipp Brüschweiler
2012-09-13 20:47:35 +02:00
parent 308ca06012
commit 62b51d9152
3 changed files with 22 additions and 5 deletions
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18
src/libcore/task.rs
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@@ -1403,11 +1403,9 @@ fn spawn_raw(+opts: TaskOpts, +f: fn~()) {
let num_threads = match opts.mode {
SingleThreaded => 1u,
ThreadPerCore => {
fail ~"thread_per_core scheduling mode unimplemented"
}
ThreadPerCore => rustrt::rust_num_threads(),
ThreadPerTask => {
fail ~"thread_per_task scheduling mode unimplemented"
fail ~"ThreadPerTask scheduling mode unimplemented"
}
ManualThreads(threads) => {
if threads == 0u {
@@ -1657,6 +1655,8 @@ extern mod rustrt {
fn rust_get_sched_id() -> sched_id;
fn rust_new_sched(num_threads: libc::uintptr_t) -> sched_id;
fn sched_threads() -> libc::size_t;
fn rust_num_threads() -> libc::uintptr_t;
fn get_task_id() -> task_id;
#[rust_stack]
@@ -2422,3 +2422,13 @@ fn test_tls_cleanup_on_failure() unsafe {
local_data_set(int_key, @31337);
fail;
}
#[test]
fn test_sched_thread_per_core() {
let cores = rustrt::rust_num_threads();
let mut reported_threads = 0u;
do spawn_sched(ThreadPerCore) {
reported_threads = rustrt::sched_threads();
}
assert(cores == reported_threads);
}