Commit Graph

41 Commits

Author SHA1 Message Date
Brian Anderson
5d4bf75f56 rt: Convert rust_task_list to a typedef 2012-03-18 18:18:18 -07:00
Brian Anderson
47c1895724 rt: Don't store the name of the task state in rust_task_list 2012-03-18 18:18:15 -07:00
Brian Anderson
05466c6138 rt: Use an enum to represent the task state 2012-03-18 17:41:56 -07:00
Brian Anderson
b247de6458 rt: Remove lock_held_by_current_thread 2012-03-18 17:03:35 -07:00
Brian Anderson
132266b2cb rt: Remove the recursive lock from rust_task_thread 2012-03-17 18:44:41 -07:00
Brian Anderson
5728a69e78 rt: Remove some bogus pthread settings from rust_task_thread
This is all handled by rust_thread, and 'true' isn't even a valid
value to pass to pthread_attr_setdetachestate
2012-03-17 17:18:24 -07:00
Marijn Haverbeke
146b61189a Get rid of rust_crate_cache in the runtime
We are no longer generating dynamic tydescs or dicts.

Issue #1982
2012-03-16 00:44:06 +01:00
Brian Anderson
c414b78afe rt: Remove the kernel task table 2012-03-15 11:10:52 -07:00
Brian Anderson
1366d65660 rt: Remove remaining uses of rust_kernel::get_task_by_id 2012-03-15 11:10:52 -07:00
Brian Anderson
0a5603cb58 rt: Make linked failure less prone to deadlock
Still a mess.
2012-03-05 19:39:56 -08:00
Brian Anderson
c78da1e170 rt: Stop calling prepare_valgrind_stack when it's not needed 2012-03-05 19:39:56 -08:00
Brian Anderson
f057f00300 rt: Simplify reap_dead_tasks 2012-03-05 19:39:56 -08:00
Brian Anderson
8efe4b8913 rt: Add an assert to the scheduler loop 2012-03-05 19:39:56 -08:00
Brian Anderson
2465a63a69 rt: Move transition from rust_task to rust_task_thread 2012-03-05 19:39:55 -08:00
Brian Anderson
237652299e rt: Protect cond and cond_name with the state_lock 2012-03-05 19:39:55 -08:00
Brian Anderson
b2a075e20d rt: Protect rust_task::state with a lock 2012-03-05 19:39:55 -08:00
Brian Anderson
14306756b4 rt: Always delete task stacks on the task thread
There's not a real race here, but it makes helgrind happy and is arguably
less prone to future errrors.
2012-03-02 15:21:59 -08:00
Brian Anderson
96f565492d rt: Make fields of rust_task_thread private where possible 2012-03-01 21:41:11 -08:00
Brian Anderson
b6c57dbba2 rt: rust_task_thread isn't ref counted 2012-03-01 21:19:12 -08:00
Brian Anderson
7e9aa6c3c2 rt: Don't zero new stacks 2012-02-27 16:13:51 -08:00
Brian Anderson
b3f77bf927 rt: Change the way the kernel exits to avoid pthread leaks
This makes the kernel join every scheduler thread before exiting in order to
ensure that all threads are completely terminated before the process exits. On
my machine, for 32-bit targets, this was causing regular valgrind errors.
2012-02-27 14:25:32 -08:00
Brian Anderson
e4c027446e Revert "rt: Reconfigure the C stack for valgrind each time it's used"
This reverts commit 859e025652.

This ended up not fixing the '0 bytes lost' problem and has some performance
impact.
2012-02-27 14:01:36 -08:00
Brian Anderson
859e025652 rt: Reconfigure the C stack for valgrind each time it's used 2012-02-14 15:11:56 -08:00
Brian Anderson
a53a08e1b9 rt: Don't allocate a C stack for tasks that already have one 2012-02-14 13:51:15 -08:00
Brian Anderson
3af4b2c998 rt: Call register/deregister_valgrind_stack from the stack con/destructors 2012-02-10 12:58:35 -08:00
Brian Anderson
3406da49d9 rt: Extract prepare_valgrind_stack from register_valgrind_stack 2012-02-10 12:58:35 -08:00
Brian Anderson
c42492e6aa rt: Rename config_valgrind_stack to register_valgrind_stack, etc 2012-02-10 12:58:35 -08:00
Brian Anderson
8e55d3130a rt: Use 100k stacks for scheduler threads 2012-02-10 11:53:30 -08:00
Brian Anderson
d90a9d3da0 rt: Inline everything on the C-stack-switching path 2012-02-09 22:15:15 -08:00
Brian Anderson
dff256cd19 rt: Move valgrind stack configuration out of the hot path 2012-02-09 21:27:50 -08:00
Brian Anderson
81e1564a7d rt: Detach pthreads before exiting
Joinable pthreads need to be either joined or detached and we no
longer join with the scheduler threads.
2012-02-09 19:00:16 -08:00
Brian Anderson
79b1563abb rt: Use rust_task_thread's C-stack pool for native calls 2012-02-09 19:00:16 -08:00
Brian Anderson
bfb80064d2 rt: Add methods to rust_task_thread for borrowing C stacks 2012-02-09 19:00:16 -08:00
Brian Anderson
0667fb4e63 rt: Make rust_task::ref_count private 2012-02-09 19:00:15 -08:00
Brian Anderson
d39ea47746 rt: Remove rust_task_user struct 2012-02-09 19:00:15 -08:00
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
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
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