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889 Commits

Author SHA1 Message Date
Patrick Walton
91d45b91e6 stdlib: Implement str::unsafe_from_bytes_ivec() 2011-07-08 22:23:11 -07:00
Patrick Walton
aa0f6f4961 stdlib: Add an offset function for simple pointer arithmetic on unsafe pointers 2011-07-08 21:56:15 -07:00
Eric Holk
d7db25e8f6 Added an environment variable to override the minimum stack size. Closes #637. 2011-07-08 11:36:56 -07:00
Eric Holk
3958c72cd8 Some cleanup 2011-07-07 18:32:45 -07:00
Eric Holk
4739953b84 Fixed two races. 
The first is that the memory_region destructor would complain there is
still an outstanding allocation. This is because circular_buffer from
rust_chan wasn't refing its task, so the task was being destructed too
soon.

The second was where the program could deadlock while joining a
task. The target task would die in the time between checking whether
the task should block and then actually blocking. The fix is to use
the target task's lock.
 2011-07-07 18:22:27 -07:00
Eric Holk
f6e37f659c Made TRACK_ALLOCATIONS add only constant time overhead. This makes it 
feasible to turn it on and run rustc.
 2011-07-07 18:22:27 -07:00
Eric Holk
5d9a5b7d55 Tightened up the scoping for our various new operators, which should 
make it harder to use the wrong one.
 2011-07-07 18:22:27 -07:00
Eric Holk
8acadb17c2 Work on debugging race conditions. 
Ports and channels have been moved to the kernel pool, since they've
been known to outlive their associated task. This probably isn't the
right thing to do, the life cycle needs fixed instead.

Some refactorying in memory_region.cpp. Added a helper function to
increment and decrement the allocation counter. This makes it easier
to switch between atomic and non-atomic increments. Using atomic
increments for now, although this still does not fix the problem.
 2011-07-07 18:22:27 -07:00
Eric Holk
dcd2563a3a Removing the synchronized memory region from tasks. 2011-07-07 18:22:27 -07:00
Eric Holk
a0f45f4456 Removing most of the locks in rust_upcall.cpp and elsewhere. 2011-07-07 18:22:27 -07:00
Rob Arnold
f6117173c9 Allocate rust_ivec buffers out of the kernel pool 
The duplication of upcalls is due to the fact that the runtime is
shared between stage0/rustc and stage1/rustc. Once snapshots are
updated, they should be de-duplicated.
 2011-07-06 20:41:24 -07:00
Rob Arnold
2e2e1f7cb3 Add realloc method to rust_kernel 2011-07-06 20:37:27 -07:00
Patrick Walton
0391e14fc2 rt: Double stack size 2011-07-06 15:13:00 -07:00
Patrick Walton
91eb63eaee rt: Add a stack check to upcall_get_type_desc 2011-07-06 15:07:04 -07:00
Eric Holk
111989a626 Removed what seems to be the last of the calls to rand(). Closes #582. 2011-07-06 11:50:25 -07:00
Eric Holk
bc5d6aefda Added a task wakeup callback. Closes #599. 
The callback happens when a task moves from the "blocked" state to the
"running" state. The callback is also inherited by child tasks. There
is currently only a native API.

This code hasn't been heavily exercised yet.
 2011-07-06 11:30:00 -07:00
Patrick Walton
291df4d732 rt: Add missing CDECL to routines in rust_builtin 2011-07-05 14:29:14 -07:00
Rob Arnold
4e59b0be54 Sync rust_chan's deref() method with rustc's code. 
If the channel is associated with a port then the destructor will assert.
Additionally, destruction of the object is not always appropriate. This brings
the deref() method into sync with the behavior of generated rust code which
only invokes destroy() once the reference count goes to 0.
 2011-07-01 16:59:11 -07:00
Rob Arnold
02a5949aba Add macro for refcounting runtime structures. 
The macro with the extra dtor parameter is intended for structures like
rust_chan which may not necessarily delete themselves when the ref count
becomes 0. This functionality will be used in an upcoming changeset.
 2011-07-01 16:59:10 -07:00
Rob Arnold
73cc624e8e Move the channel destroy code into rust_chan. 
This lets native code more easily destroy channels since directly deleting a
channel is not always the right way to destroy it.
 2011-07-01 16:59:10 -07:00
Rob Arnold
09921cf86f Move channel cloning logic into a method on rust_chan. 
This will allow us to more easily clone channels from native code.
 2011-07-01 16:59:10 -07:00
Patrick Walton
be50cdd24a rt: Add room for the new fill slot when resizing interior vectors 2011-06-30 11:35:05 -07:00
Eric Holk
b4a145e60f Added a nanosecond timer to time.rs, support for some floating point casts, and a commandline-driven mode for pfib.rs 2011-06-30 11:32:10 -07:00
Eric Holk
b3e5b5bd05 Added inheritance for task pinning. Closes #598 for real. 2011-06-29 18:56:34 -07:00
Eric Holk
63dcd325b9 Adding support for pinning tasks to the currently running thread. Closes #598. 2011-06-29 18:47:47 -07:00
Graydon Hoare
c796a8f24d Re-enable tidy (it was broken) and fix various non-tidy things. 2011-06-29 15:14:55 -07:00
Tim Chevalier
1ba85932b1 Add a runtime flag to enable/disable claims en masse 
Now, if the environment variable CHECK_CLAIMS is set, then all
claims turn into checks. Otherwise, claims are no-ops.
 2011-06-29 14:28:02 -07:00
Rafael Ávila de Espíndola
8c535d4aba Don't enable ssp everywhere. 2011-06-29 16:25:54 -04:00
Patrick Walton
a2ce532337 rt: Remove the lock around upcall_vec_append. Add a test case. Closes #156. 2011-06-29 10:33:51 -07:00
Patrick Walton
74f8eb51ae rustc: Move duplicate_heap_parts to copy glue; add a test case 2011-06-28 17:59:30 -07:00
Patrick Walton
dfcfef41df rustc: Rename take glue to copy glue 2011-06-28 16:52:59 -07:00
Eric Holk
866ee6ecb4 Re-enabling some tests. 2011-06-28 16:12:34 -07:00
Eric Holk
f6f8a06d6b Resurrecting the runtime unit tests, and modifying them so they compile under the latest refactoring changes. 2011-06-28 16:12:34 -07:00
Eric Holk
657e5a2bd5 Renamed what's left of rust_dom to rust_scheduler 2011-06-28 16:12:33 -07:00
Eric Holk
02f6645fca Moved win32_require to the kernel. 2011-06-28 16:12:33 -07:00
Eric Holk
2f84987a48 Fixed Win32 compile errors. 2011-06-28 16:12:33 -07:00
Eric Holk
49a8cb34d2 Removed dom_owned, splitting things between task_owned and kernel_owned. Had to re-xfail a few tests brson recently un-xfailed. 2011-06-28 16:12:33 -07:00
Eric Holk
f6f945fed5 Moved thread management to rust_kernel. 2011-06-28 16:12:33 -07:00
Eric Holk
c6d8324830 There is only one domain per kernel now. 2011-06-28 16:12:33 -07:00
Eric Holk
1c852ac9c0 Removing runtime tests. The runtime is tested well enough by the standard library tests, so we might as well have less code to fix during refactoring. 2011-06-28 16:12:33 -07:00
Michael Sullivan
99b4fff4d2 Properly handle the case where src==dst but we have to allocate a new vector. 2011-06-27 12:34:45 -07:00
Michael Sullivan
8ad7f3b56b Properly handle the case where src==dst in upcall_vec_append. 2011-06-27 12:34:44 -07:00
Graydon Hoare
bc9fa31618 A little tidying in rt. 2011-06-27 10:08:57 -07:00
Eric Holk
022ebc198b Implementation mising features in lock_and_signal for Win32. Also lowered the minimum stack size to get the pfib benchmark to run without exhausting its address space on Windows. 2011-06-27 09:58:39 -07:00
Eric Holk
681c063ec0 Conservatively serialize nearly all upcalls. Successfuly ran make check with RUST_THREADS=8, so we're probably fairly safe now. In the future we can relax the synchronization to get better performance. 2011-06-27 09:58:39 -07:00
Eric Holk
6367bcf427 Fixed a few concurrency bugs. Still not perfect, but overall it seems much more reliable. 2011-06-27 09:58:39 -07:00
Eric Holk
4d99bf9af2 Added some locking to ports to prevent the case where two threads simultaneously wake up a task blocked on a certain port. 2011-06-27 09:58:39 -07:00
Eric Holk
cb00befff0 Added an environment variable to control how many threads to use. 2011-06-27 09:58:39 -07:00
Eric Holk
4bc773465f Basic multithreading support. The infinite loops test successfully maxes out the CPU. 2011-06-27 09:58:39 -07:00
Eric Holk
860e8fd98b Combined set_registers and get_registers into swap_registers. 2011-06-23 20:23:04 -07:00