Brian Anderson
028af5cb6c
rt: Change the lifecycle of tasks and schedulers for various reasons
...
This is in preparation for giving schedulers their own life cycle separate
from the kernel.
Tasks must be deleted before their scheduler thread, so we can't let the
scheduler exit before all its tasks have been cleaned up. In this scheme,
the scheduler will unregister tasks with the kernel when they are reaped,
then drop their ref on the task (there may still be others). When the task
ref count hits zero, the task will request to be unregistered from the
scheduler, which is responsible for deleting the task.
Instead of having the kernel tell the scheduler to exit, let the scheduler
decide when to exit. For now it will exit when all of its tasks are
unregistered.
2012-02-08 15:42:51 -08:00
Brian Anderson
7685e5de94
rt: Refactor the rust_kernel interface a bit
2012-02-08 15:42:47 -08:00
Brian Anderson
ad80823a6c
rt: Introduce scheduler ids
2012-02-08 15:33:40 -08:00
Brian Anderson
c76b81cddf
rt: Delete schedulers immediately upon release
...
This will be needed once we support dynamically changing schedulers.
2012-02-08 15:33:40 -08:00
Brian Anderson
f39e64d56a
rt: Change the scheme used for terminating the kernel
...
Instead of joining on the scheduler threads, instead keep a count of active
schedulers. When there are no more schedulers raise a signal for the main
thread to continue.
This will be required once schedulers can be added and removed from the
running kernel.
2012-02-08 15:33:40 -08:00
Brian Anderson
21d783c338
rt: Make isaac_init not a template
2012-02-03 23:48:12 -08:00
Brian Anderson
f7a727e861
rt: Remove some silly locks in rust_scheduler
2012-02-03 23:48:12 -08:00
Brian Anderson
12fa90888e
rt: Clean up the way the kernel tracks tasks
2012-02-03 23:48:12 -08:00
Brian Anderson
8d881967a2
rt: Extract rust_scheduler from rust_task_thread
2012-02-03 23:48:12 -08:00
Brian Anderson
f94339cc1c
rt: Rename rust_scheduler to rust_task_thread
2012-02-03 23:48:12 -08:00
Brian Anderson
3b4dd26ff1
rt: Remove lock_and_signal::signal_all
2012-02-02 18:29:03 -08:00
Brian Anderson
cd774fc5fa
rt: Stop waking up the scheduler on a timer
2012-02-02 18:23:01 -08:00
Brian Anderson
b1a090c7c4
rt: Remove unused arguments in rust_scheduler
2012-02-02 18:17:33 -08:00
Brian Anderson
6c632c71c6
rt: Simplify reap_dead_tasks
2012-02-02 18:10:24 -08:00
Brian Anderson
f719ea552b
rt: Remove rust_scheduler::interrupt_flag. Unused
2012-02-02 18:10:24 -08:00
Brian Anderson
aee83d2ff1
rt: Only wake up all schedulers when no tasks are left
...
At the moment there's not really any reason to be raising this signal,
since they schedulers wake up periodically anyway, but once we remove
the timer this will be how the schedulers know to exit.
2012-02-02 18:10:24 -08:00
Brian Anderson
5449b886d3
rt: Remove bogus task reaping from the scheduler
2012-02-02 18:10:24 -08:00
Brian Anderson
3978fbff8b
rt: Remove rust_task::can_schedule. Does nothing
2012-02-02 18:10:24 -08:00
Brian Anderson
ed3a5ad5ad
rt: Remove running_on flag. Does nothing
2012-02-02 18:10:24 -08:00
Brian Anderson
57cad61353
rt: Remove task pinning. Does nothing
2012-02-02 18:10:24 -08:00
Brian Anderson
8693fcc2d7
rt: Remove yield timers
2012-02-02 18:10:24 -08:00
Brian Anderson
5c89938544
rt: Remove rust_timer. Unused
2012-02-01 16:05:17 -08:00
Brian Anderson
6548cdd59b
rt: Make the initial segment of the main task's stack 1MB
...
This is a trick to fool microbenchmarks. Closes #1681
2012-01-29 21:20:39 -08:00
Brian Anderson
0616cba62b
libcore: Add sys::set_exit_status
...
Sets the process exit code
2012-01-12 22:24:27 -08:00
Niko Matsakis
8506241f3a
fix how we walk functions to match new closure fmt
2012-01-06 22:40:31 -08:00
Graydon Hoare
5930463faa
Tidy up some drift in runtime logging, close #1380 .
2011-12-28 11:53:12 -08:00
Brian Anderson
9e6ff44d93
rt: Make __morestack work on win32
2011-12-08 16:47:33 -08:00
Brian Anderson
5d1a1dc420
rt: Rename stk_seg.limit to stk_seg.end
...
rust_task is using the word limit it two ways, so one has to change.
2011-12-06 21:45:53 -08:00
Brian Anderson
6da1a3fcd6
rt: Refactor record_sp into task::record_stack_limit
2011-12-01 15:26:42 -08:00
Brian Anderson
6bdf347418
rt: Make __morestack (without unwinding) work on 32-bit linux
2011-11-22 18:02:10 -08:00
Brian Anderson
0dfa1410d3
rt: Remove task::on_wakeup. Unused
2011-11-18 10:32:27 -08:00
Brian Anderson
d624e523c9
rt: Make stack growth code build on Linux
2011-11-17 10:53:06 -08:00
Patrick Walton
e6c3c4e48c
rt: More work on morestack
2011-11-17 10:52:59 -08:00
Brian Anderson
02cebbb9f1
Revert "rt: More work on morestack"
...
This reverts commit 68aff2ad6d
.
2011-11-16 18:49:19 -08:00
Brian Anderson
5559e149e4
Revert "rt: Make stack growth code build on Linux"
...
This reverts commit da4b7da4e1
.
2011-11-16 18:49:07 -08:00
Brian Anderson
da4b7da4e1
rt: Make stack growth code build on Linux
2011-11-16 18:33:00 -08:00
Patrick Walton
68aff2ad6d
rt: More work on morestack
2011-11-16 18:00:57 -08:00
Brian Anderson
bae817efe6
rt: Remove rust_task::notify_tasks_wating_to_join
2011-11-16 17:22:14 -08:00
Patrick Walton
b3cf0c4d1b
Revert "rt: More work on morestack"
...
This reverts commit ced0d4f15e
.
2011-11-14 16:20:53 -08:00
Patrick Walton
ced0d4f15e
rt: More work on morestack
2011-11-14 16:17:08 -08:00
Patrick Walton
e8757ea01f
rt: Expose the C stack inside the Rust scheduler so that C calls can switch to it
2011-09-28 10:22:02 -07:00
Patrick Walton
9ba86178ef
rt: Store the task in TLS
2011-09-27 18:12:03 -07:00
Patrick Walton
5209b19255
rt: Rename rand() to isaac_rand() since the former prevents lots of standard headers from being included
2011-09-20 15:34:47 -07:00
Brian Anderson
a0ad9a42cd
Unsupervise tasks before the scheduler kills them. Unblock before yield->fail
2011-09-14 17:05:35 -07:00
Brian Anderson
0ea55ffdc8
Use a unique exit status when the runtime fails normally
...
Check for it in run-fail tests
2011-09-11 17:31:40 -07:00
Brian Anderson
25ae3d655c
Rewrite spawn yet again
...
The motivation here is that the bottom of each stack needs to contain a C++
try/catch block so that we can unwind. This is already the case for main, but
not spawned tasks.
Issue #236
2011-09-07 10:32:58 -07:00
Brian Anderson
7dad31d11c
Fix comment typos
2011-08-20 16:30:27 -07:00
Brian Anderson
abdb6cd71b
Rewrite reap_dead_tasks to never grab the sched lock before a task lock
...
Doing so contradicts the locking order used everywhere else and causes
deadlocks.
Un-XFAIL task-perf-spawnalot
Closes #854
2011-08-20 16:21:27 -07:00
Michael Sullivan
eb368d1b34
Remove rc_base. Closes #603 .
2011-08-18 15:49:58 -07:00
Eric Holk
ae89ea223d
Making more of the rust_task structure directly accessible from Rust.
2011-08-17 14:42:40 -07:00