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rewrite to use old C++-based mechanism

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This commit is contained in:
Niko Matsakis
2012-01-06 22:02:05 -08:00
parent a1ef79c9d2
commit d4410a9f9b
3 changed files with 26 additions and 10 deletions
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23
src/libcore/task.rs
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@@ -28,8 +28,6 @@ Example:
*/
import cast = unsafe::reinterpret_cast;
import comm;
import option::{some, none};
import option = option::t;
import ptr;
import c = ctypes;
@@ -112,10 +110,23 @@ Returns:
A handle to the new task
*/
fn spawn(-f: sendfn()) -> task unsafe {
fn spawn(-f: sendfn()) -> task {
spawn_inner(f, none)
}
fn spawn_inner(-f: sendfn(),
notify: option<comm::chan<task_notification>>) -> task unsafe {
let closure: *rust_closure = unsafe::reinterpret_cast(ptr::addr_of(f));
#debug("spawn: closure={%x,%x}", (*closure).fnptr, (*closure).envptr);
let id = rustrt::new_task();
// set up notifications if they are enabled.
option::may(notify) {|c|
let task_ptr <- rust_task_ptr(rustrt::get_task_pointer(id));
(**task_ptr).notify_enabled = 1;
(**task_ptr).notify_chan = c;
}
rustrt::start_task(id, closure);
unsafe::leak(f);
ret id;
@@ -129,6 +140,11 @@ A task that sends notification upon termination
type joinable_task = (task, comm::port<task_notification>);
fn spawn_joinable(-f: sendfn()) -> joinable_task {
let notify_port = comm::port();
let notify_chan = comm::chan(notify_port);
let task = spawn_inner(f, some(notify_chan));
ret (task, notify_port);
/*
resource notify_rsrc(data: (comm::chan<task_notification>,
task,
@mutable task_result)) {
@@ -148,6 +164,7 @@ fn spawn_joinable(-f: sendfn()) -> joinable_task {
};
let task = spawn(g);
ret (task, notify_port);
*/
}
/*