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103 Commits

Author SHA1 Message Date
Tim Chevalier
c814df0bd6 Comments only: annotate FIXMEs 2012-06-21 16:03:28 -07:00
Michael Sullivan
4c0d41cffa Add a malloc_dyn upcall for dynamically sized allocations on the shared heap. 2012-06-13 17:59:21 -07:00
Brian Anderson
f717100fc7 rt: Start tasks, ports and scheds at 1, assert when we see 0. Closes #2321 2012-05-07 14:32:36 -07:00
Brian Anderson
46cc11ea88 core: Serialize all access to the environment using a weak global task 2012-04-30 17:34:29 -07:00
Jeff Olson
577b888e4b rt: remove unneccesary c++ functions and rust_kernel data, re: global loop 2012-04-27 22:19:30 -07:00
Jeff Olson
253fad7788 replace impl of globa_async_handle with one using atomic compare-and-swap 2012-04-20 15:23:22 -07:00
Jeff Olson
9a5d1974dc don't use ::malloc for initializing the global_async_handle in rust_kernel 2012-04-20 15:23:22 -07:00
Jeff Olson
e0f110aa12 clean and trying the global loop test as two separate loop lifetimes.. 
.. seeing an occasional valgrind/barf spew on some invalid read/writes..
need to investigate further.. i think its related to my poor citizen
conduct, re: pointers stashed in rust_kernel..
 2012-04-20 15:23:22 -07:00
Jeff Olson
c6667c06c3 add needed fields for global libuv loop + bindings to manage from rust 
adding two pointers fields to rust_kernel :(
.. have to do manual malloc/free for one of the fields, which feels wrong
 2012-04-20 15:23:21 -07:00
Brian Anderson
53f5c0c623 rt: Delete some incorrect comments 2012-04-20 14:00:13 -07:00
Brian Anderson
4357e1fd60 rt: Take the weak_task_lock in end_weak_tasks 
Don't remember why it's commented out. Probably an oversight.
 2012-04-20 13:59:31 -07:00
Brian Anderson
01dc4a8b26 core: Add priv::weaken_task 2012-04-07 19:56:41 -07:00
Brian Anderson
e325146eb4 Merge remote-tracking branch 'brson/mainthread' 
Conflicts:
	src/rt/rust_kernel.cpp
	src/rt/rust_scheduler.cpp
	src/rt/rust_scheduler.h
 2012-04-03 20:30:01 -07:00
Brian Anderson
4cf7efc8f7 rt: Fix bugs in the osmain scheduler 2012-04-03 20:24:29 -07:00
Brian Anderson
c0e12854ed rt: Fix bugs in the osmain scheduler 2012-04-03 18:01:13 -07:00
Brian Anderson
4f4b7b10bb rt: Futz with headers to satisfy FreeBSD 2012-04-03 16:02:38 -07:00
Jon Morton
72ffb4b446 fix 'I don't know how C works' 2012-04-03 16:02:38 -07:00
Jon Morton
632a4c9326 Refactor includes structure, getting rid of rust_internal.h 
Many changes to code structure are included:
- removed TIME_SLICE_IN_MS
- removed sychronized_indexed_list
- removed region_owned
- kernel_owned move to kernel.h, task_owned moved to task.h
- global configs moved to rust_globals.h
- changed #pragma once to standard guard in rust_upcall.h
- got rid of memory.h
 2012-04-03 16:02:38 -07:00
Brian Anderson
e1858882a4 rt: Run a single-threaded scheduler on the main thread 2012-04-02 15:35:47 -07:00
Jon Morton
bcb9269d84 rt: cleanup passing around of rust_env 2012-04-02 03:11:58 -05:00
Jon Morton
128a8b6ed5 remove rust_srv 2012-04-01 22:18:40 -05:00
Jon Morton
413994ea3e replace assertion macros with plain asserts 2012-04-01 21:14:16 -05:00
Brian Anderson
fb528dd7d6 rt: Allow some schedulers to stay alive even without tasks to execute 2012-04-01 16:57:14 -07:00
Brian Anderson
e78396850d Merge remote-tracking branch 'brson/mainthread' 
Conflicts:
	src/rt/rust_sched_loop.cpp
	src/rt/rust_shape.cpp
	src/rt/rust_task.cpp
 2012-04-01 00:15:04 -07:00
Brian Anderson
21064637ed rt: Fix whitespace 2012-03-31 23:12:06 -07:00
Brian Anderson
218dd08469 rt: Introduce rust_sched_reaper 
This just moves the responsibility for joining with scheduler threads
off to a worker thread. This will be needed when we allow tasks to be
scheduled on the main thread.
 2012-03-31 19:51:29 -07:00
Graydon Hoare
2aaca455b9 Tidy up multiple declarations and STDC_FOO_MACROS guards in headers. 2012-03-28 14:26:51 -07:00
Graydon Hoare
c141e7a068 Fix some gcc-4.4-isms, should build now on 4.1+. 2012-03-28 13:52:47 -07:00
Brian Anderson
b247de6458 rt: Remove lock_held_by_current_thread 2012-03-18 17:03:35 -07:00
Brian Anderson
c414b78afe rt: Remove the kernel task table 2012-03-15 11:10:52 -07:00
Brian Anderson
b278d675a2 rt: Look up ports through a single port table 
Instead of a two-level lookup, just use one big table
 2012-03-15 11:10:52 -07:00
Brian Anderson
5df44bd066 rt: Remove rust_kernel::live_tasks. Unused 2012-03-01 14:53:20 -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
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
Jyun-Yan You
b778dac197 fix build on freebsd 2012-02-09 18:41:57 -08:00
Brian Anderson
2f4e7c157e rt: Export a scheduler API 2012-02-08 15:42:51 -08:00
Brian Anderson
f2a1aa2649 rt: Hold schedulers in a map 2012-02-08 15:42:51 -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
ebc3646c39 rt: Start schedulers immediately upon creation 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
e818406072 rt: Expand rust_kernel::live_tasks to a uintptr_t 2012-02-04 01:15:00 -08:00
Brian Anderson
9fa950ec53 rt: Stop using atomic ops on rust_kernel::live_tasks 
These ops are all done within spitting distance of a suitable lock,
so just protect it with the lock.
 2012-02-04 00:31:43 -08:00
Brian Anderson
c7777f4fd9 rt: Add sanity checks when we hit the max task/port id 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
e7f00b6493 rt: Do all task creation through a scheduler 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