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117 Commits

Author SHA1 Message Date
Brian Anderson
b2cfb7ef82 rt: Add rust_port_select function 2012-02-16 11:12:22 -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
d5e7f0d113 rt: Don't kill tasks while they are in a callback from C 2012-02-14 11:24:09 -08:00
Brian Anderson
a393fb3221 rt: Maintain stack ptrs correctly when returning from stack switches 2012-02-14 11:24:09 -08:00
Brian Anderson
d493438c98 rt: Disable some expensive asserts 2012-02-09 22:58:40 -08:00
Brian Anderson
d90a9d3da0 rt: Inline everything on the C-stack-switching path 2012-02-09 22:15:15 -08:00
Brian Anderson
5d2442d89c rt: Add upcall_call_shim_on_rust_stack 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
ea76d3f454 rt: Add rust_task::call_on_c_stack 2012-02-09 19:00:16 -08:00
Brian Anderson
b98df86c09 rt: Move some stack manipulation functions into rust_task 2012-02-09 19:00:15 -08:00
Brian Anderson
4bd8f8d936 rt: Rename new_stack to next_stack, del_stack to prev_stack 2012-02-09 19:00:15 -08:00
Brian Anderson
889a783494 rt: Remove rust_task::rust_sp 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
d756b01619 rt: Add a function for configuring task notification 2012-02-09 19:00:15 -08:00
Brian Anderson
e0d5b92b84 rt: Begin moving stack-building functions to rust_stack.cpp 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
3d0e7a7af3 rt: Add a field to rust_task to hold its scheduler 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
Marijn Haverbeke
c1b075d042 Remove experimental GC code 
It's been sitting unused long enough to have bitrotted completely.
 2012-02-03 11:34:12 +01:00
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
18de0f2aeb rt: Rename task_sleep intrinsic to task_yield. Remove usec param 2012-02-02 18:10:24 -08:00
Brian Anderson
8693fcc2d7 rt: Remove yield timers 2012-02-02 18:10:24 -08:00
Niko Matsakis
196d69beb2 make boxes self-describing (fixes #1493)" (take 2) 
this will be used to generate a new snapshot.
 2012-02-01 18:52:08 -08:00
Niko Matsakis
3116643806 Revert "make boxes self-describing (fixes #1493)" until a new 
snapshot is prepared.
 2012-02-01 18:50:19 -08:00
Niko Matsakis
c36207bfb8 make boxes self-describing (fixes #1493) 2012-02-01 18:18:07 -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
94c389a25b rt: Add RUST_MAX_STACK env var with 8MB default 
Closes #1489
 2012-01-11 13:57:11 -08:00
Niko Matsakis
110c3ccdca add rust_task_is_unwinding predicate and do not kill if already unwinding 2012-01-09 19:53:32 -08:00
Niko Matsakis
8506241f3a fix how we walk functions to match new closure fmt 2012-01-06 22:40:31 -08:00
Niko Matsakis
25e81e34ea rewrite task tests 2012-01-06 22:40:31 -08:00
Niko Matsakis
98f5109cde simplify task impl 2012-01-06 22:40:31 -08:00
Brian Anderson
dedfef4c4c Revert "wip" 
This reverts commit aeadc6269e.
 2011-12-20 20:57:04 -08:00
Brian Anderson
aeadc6269e wip 2011-12-20 20:15:09 -08:00
Brian Anderson
128621be97 rt: Remove rust_task::grow. Obsolete 2011-12-20 20:02:57 -08:00
Brian Anderson
784713ec68 rt: Add a canary value to the end of every stack 
Check it on upcall entry and exit, and on stack deletion
 2011-12-20 11:48:47 -08:00
Brian Anderson
bd6b80c972 rt: Get rid of the rethrow in upcall_fail 
Throwing in upcall_fail ends up running lots of code in the red zone. To avoid
it we have the personality function figure out which stack it's on and switch
as needed.
 2011-12-18 17:17:31 -08:00
Brian Anderson
4ac345939c rt: Cache an extra stack segment to avoid bad behavior at stack boundaries 2011-12-17 13:45:38 -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
9a738fd61d rt: Various tweaks to make __morestack unwinding work on linux 
When unwinding through __morestack the stack limit in the TLS is invalidated
and must be reset. Instead of actually landing at __morestack we're
just going to make all our Rust landing pads call upcall_reset_stack_limit,
which will find the stack segment that corresponds to the current stack
pointer and put the limit in the TLS.

Also massively expand the stack segment red zone to make more room for the
dynamic linker. Will fix in the future.
 2011-12-06 16:32:41 -08:00
Brian Anderson
6da1a3fcd6 rt: Refactor record_sp into task::record_stack_limit 2011-12-01 15:26:42 -08:00
Brian Anderson
f2de42c39a rt: Reorganize stack growth code 2011-11-30 20:31:33 -08:00
Brian Anderson
e6ef4d929c rt: Remove the stack pointer field of stk_seg 2011-11-30 20:31:33 -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
1e58049da2 rt: Remove fail calls from rust_task::yield 2011-11-18 15:36:48 -08:00
Brian Anderson
0dfa1410d3 rt: Remove task::on_wakeup. Unused 2011-11-18 10:32:27 -08:00
Brian Anderson
d52888f0ba rt: Remove rust_task::yield. Unused 2011-11-18 10:32:27 -08:00
Brian Anderson
bae817efe6 rt: Remove rust_task::notify_tasks_wating_to_join 2011-11-16 17:22:14 -08:00
Niko Matsakis
26b0662fb8 fix alignment for chan_handle structs; rust equiv is translated 
to char[16], not struct{long,long}
 2011-11-16 15:16:42 -08:00