Lisa Hsu
d6da172517
util: do checkpoint aggregation more cleanly, fix last changeset.
...
1) Move alpha-specific code out of page_table.cc:serialize().
2) Begin serializing M5_pid and unserializing it, but adding an function to do optional paramIn so that old checkpoints don't need to be fixed up.
3) Fix up alpha startup code so that the unserialized M5_pid value is properly written to DTB_IPR_ASN.
4) Fix the memory unserialize that I forgot somehow in the last changeset.
5) Add in an agg_se.py to handle aggregated checkpoints. --bench foo-bar plus positional arguments foo bar are the only changes in usage from se.py.
Note this aggregation stuff has only been tested for Alpha and nothing else, though it should take a very minimal amount of work to get it to work with another ISA.
2010-01-19 22:03:44 -08:00
Derek Hower
07ea0891f1
ruby: new atomics implementation
...
This patch changes the way that Ruby handles atomic RMW instructions. This implementation, unlike the prior one, is protocol independent. It works by locking an address from the sequencer immediately after the read portion of an RMW completes. When that address is locked, the coherence controller will only satisfy requests coming from one port (e.g., the mandatory queue) and will ignore all others. After the write portion completed, the line is unlocked. This should also work with multi-line atomics, as long as the blocks are always acquired in the same order.
2010-01-19 17:11:36 -06:00
Derek Hower
279f179bab
merge
2010-01-19 15:48:12 -06:00
Lisa Hsu
4a40ac71f8
util: make a generic checkpoint aggregator that can aggregate different cpts into one multi-programmed cpt. Make minor changes to serialization/unserialization to get it to work properly. Note that checkpoints were made with a comment at the beginning with // - this must be changed to ## to work properly with the python config parser in the aggregator.
2010-01-18 14:30:31 -08:00
Lisa Hsu
8b4e8690b7
cache: make tags->insertBlock() and tags->accessBlock() context aware so that the cache can make context-specific decisions within their various tag policy implementations.
2010-01-12 10:53:02 -08:00
Derek Hower
5aa104e072
ruby: cleaned up ruby-lang configuration
2009-12-04 13:12:40 -06:00
Brad Beckmann
5d8a669539
Resurrection of the CMP token protocol to GEM5
2009-11-18 16:34:33 -08:00
Brad Beckmann
dcac2ec24c
ruby: removed the chip pointer from MessageBuffer
...
The Chip object no longer exists and thus is removed from the MessageBuffer
constructor.
2009-11-18 16:34:32 -08:00
Brad Beckmann
c9764b1ff1
ruby: added error message to isinstance check
...
Added error message when a symbol is not an instance of a particular expected
type.
2009-11-18 16:34:32 -08:00
Brad Beckmann
20f872ed2a
ruby: Added boolean to State Machine parameters
...
* * *
ruby: Removed primitive .hh includes
2009-11-18 16:34:32 -08:00
Brad Beckmann
8011e80725
ruby: The persistent table files from GEMS
...
These files are need by the MOESI_CMP_token protocol.
2009-11-18 16:34:32 -08:00
Brad Beckmann
cef3c56163
ruby: MOESI hammer support for DMA reads and writes
2009-11-18 16:34:32 -08:00
Brad Beckmann
dbb2c111cc
ruby: Added a memory controller feature to MOESI hammer
2009-11-18 16:34:32 -08:00
Brad Beckmann
bc12b8432d
ruby: Hammer ruby configuration support
2009-11-18 16:34:32 -08:00
Brad Beckmann
877be2009c
ruby: Changes necessary to get the hammer protocol to work in GEM5
2009-11-18 16:34:32 -08:00
Brad Beckmann
b0973035b4
ruby: added the original hammer protocols from old ruby
2009-11-18 16:34:31 -08:00
Brad Beckmann
2783a7b9ad
ruby: returns the number of LLC needed for broadcast
...
Added feature to CacheMemory to return the number of last level caches.
This count is need for broadcast protocols such as MOESI_hammer.
2009-11-18 16:34:31 -08:00
Brad Beckmann
7b8fcecf11
ruby: cache configuration fix to use bytes
...
Changed cache size to be in bytes instead of kb so that testers can use very
small caches and increase the chance of writeback races.
2009-11-18 16:34:31 -08:00
Brad Beckmann
99338a7460
ruby: fix CacheMemory destructor
2009-11-18 16:33:35 -08:00
Brad Beckmann
7ab484624f
ruby: split CacheMemory.hh into a .hh and a .cc
2009-11-18 16:33:35 -08:00
Brad Beckmann
8b0f970084
ruby: Added default names to message buffers
...
Added default names to message buffers created by the simple network.
2009-11-18 13:55:58 -08:00
Brad Beckmann
ed54ecf1c8
ruby: slicc method error fix
...
Added error message when a method call is not supported by an object.
2009-11-18 13:55:58 -08:00
Brad Beckmann
994169327a
ruby: slicc action error fix
...
Small fix to the State Machine error message when duplicate actions are defined.
2009-11-18 13:55:58 -08:00
Brad Beckmann
cc2db929cb
ruby: slicc state machine error fixes
...
Added error messages when:
- a state does not exist in a machine's list of known states.
- an event does not exist in a machine
- the actions of a certain machine have not been declared
2009-11-18 13:55:58 -08:00
Brad Beckmann
e84881b7a3
ruby: Removed unused action z_stall
2009-11-18 13:55:58 -08:00
Brad Beckmann
faf1d97f24
ruby: fixed dma mi example to work with multiple dma ports
2009-11-18 13:55:58 -08:00
Brad Beckmann
93f0069dd5
ruby: getPort function fix
...
Fixed RubyMemory::getPort function to not pass in a -1 for the idx parameter
2009-11-18 13:55:58 -08:00
Brad Beckmann
204d1776ca
ruby: Fixed Directory memory destructor
2009-11-18 13:55:58 -08:00
Brad Beckmann
6e1dc2546c
m5: Added isValidSrc and isValidDest calls to packet.hh
2009-11-18 13:55:58 -08:00
Brad Beckmann
90d6e2652f
ruby: included ruby config parameter ports per core
...
Slightly improved the major hack need to correctly assign the number of ports
per core. CPUs have two ports: icache + dcache. MemTester has one port.
2009-11-18 13:55:58 -08:00
Brad Beckmann
dce53610c3
ruby: Added error check for openning the ruby config file
2009-11-18 13:55:58 -08:00
Brad Beckmann
3cf24f9716
ruby: Support for merging ALPHA_FS and ruby
...
Connects M5 cpu and dma ports directly to ruby sequencers and dma
sequencers. Rubymem also includes a pio port so that pio requests
and be forwarded to a special pio bus connecting to device pio
ports.
2009-11-18 13:55:58 -08:00
Brad Beckmann
d7a4f665ed
ruby: Added more info to bridge error message
2009-11-18 13:55:57 -08:00
Brad Beckmann
17e14efa7e
ruby: Ruby 64-bit address output fixes.
2009-11-18 13:55:57 -08:00
Brad Beckmann
b7cc66af31
ruby: Ruby destruction fix.
2009-11-18 13:55:57 -08:00
Brad Beckmann
5492f71755
ruby: Ruby debug print fixes.
2009-11-18 13:55:57 -08:00
Derek Hower
9ef5e72917
ruby: added sequencer stats to track what requests are waiting on
2009-11-18 11:55:30 -06:00
Derek Hower
d11dd6ed2c
ruby: turned off randomization by default, turned on memory controller random arbitrate
2009-11-18 11:53:43 -06:00
Derek Hower
2f5839832e
ruby: added -A option to TwoLevel_SplitL1UnifiedL2 to set the L1 cache size
2009-11-13 09:45:23 -06:00
Derek Hower
f7f475a6f4
ruby: gave ALIASED_REQUEST priority over BUFFER_FULL in sequencer
2009-11-13 09:44:51 -06:00
Derek Hower
2ee04d6587
ruby: reduce the memory usage of ruby by making memory vector page based
2009-11-13 09:43:39 -06:00
Derek Hower
ceb8fde914
ruby: cache memory bugfix
2009-11-13 09:42:47 -06:00
Gabe Black
b8120f6c38
Mem: Eliminate the NO_FAULT request flag.
2009-11-10 21:10:18 -08:00
Steve Reinhardt
9098010e3f
slicc: tweak file enumeration for scons
...
Right now .cc and .hh files are handled separately, but then
they're just munged together at the end by scons, so it
doesn't buy us anything. Might as well munge from the start
since we'll eventually be adding generated Python files
to the list too.
2009-11-05 11:11:06 -08:00
Steve Reinhardt
058ccfc7fe
slicc: whack some of Nate's leftover debug code
2009-11-05 11:11:05 -08:00
Nathan Binkert
2c5fe6f95e
build: fix compile problems pointed out by gcc 4.4
2009-11-04 16:57:01 -08:00
Nathan Binkert
25d9328689
license: Fix license on network model code
...
This mostly was a matter of changing the license owner to Princeton
which is as it should have been. The code was originally licensed
under the GPL but was relicensed as BSD by Li-Shiuan Peh on July 27,
2009. This relicensing was in an explicit e-mail to Nathan Binkert,
Brad Beckmann, Mark Hill, David Wood, and Steve Reinhardt.
2009-10-28 11:56:56 -07:00
Derek Hower
22d9a53080
ruby: removed obsolete configuration files
2009-10-20 15:29:02 -05:00
Brad Beckmann
0fdfc82bde
fixed error message generation bug in SLICC ast files
2009-10-26 17:06:32 -07:00
Derek Hower
909bac6840
ruby: add parameter to config to set # of l2 banks
2009-10-16 16:31:16 -05:00
Derek Hower
4505216282
merge
2009-10-07 15:48:26 -05:00
Steve Reinhardt
8a761c44af
bus: add assertion to catch illegal retry
...
on mem-inhibited transaction.
2009-10-03 18:07:39 -07:00
Steve Reinhardt
f679630788
Minor cleanup: Use the blockAlign() method where it applies in the cache.
2009-09-26 10:50:50 -07:00
Steve Reinhardt
72cfed4164
Force prefetches to check cache and MSHRs immediately prior to issue.
...
This prevents redundant prefetches from being issued, solving the
occasional 'needsExclusive && !blk->isWritable()' assertion failure
in cache_impl.hh that several people have run into.
Eliminates "prefetch_cache_check_push" flag, neither setting of
which really solved the problem.
2009-09-26 10:50:50 -07:00
Derek Hower
d9a2450054
protocol: cleaned up MESI...got rid of unneccessary virtual networks
2009-09-25 17:51:51 -05:00
Derek Hower
83a9dc2939
ruby: more helpful config error message
2009-09-25 17:51:12 -05:00
Derek Hower
26990dc492
slicc: removed unused atomics code from StateMachine
2009-09-25 17:47:38 -05:00
Nathan Binkert
be0d74d6f6
ruby: Disable all debug output by default
2009-09-23 18:17:11 -07:00
Nathan Binkert
d9f39c8ce7
arch: nuke arch/isa_specific.hh and move stuff to generated config/the_isa.hh
2009-09-23 08:34:21 -07:00
Nathan Binkert
2278363015
slicc: Pure python implementation of slicc.
...
This is simply a translation of the C++ slicc into python with very minimal
reorganization of the code. The output can be verified as nearly identical
by doing a "diff -wBur".
Slicc can easily be run manually by using util/slicc
2009-09-22 18:12:39 -07:00
Nathan Binkert
e9288b2cd3
scons: add slicc and ply to sys.path and PYTHONPATH so everyone has access
2009-09-22 15:24:16 -07:00
Nathan Binkert
9a8cb7db7e
python: Move more code into m5.util allow SCons to use that code.
...
Get rid of misc.py and just stick misc things in __init__.py
Move utility functions out of SCons files and into m5.util
Move utility type stuff from m5/__init__.py to m5/util/__init__.py
Remove buildEnv from m5 and allow access only from m5.defines
Rename AddToPath to addToPath while we're moving it to m5.util
Rename read_command to readCommand while we're moving it
Rename compare_versions to compareVersions while we're moving it.
--HG--
rename : src/python/m5/convert.py => src/python/m5/util/convert.py
rename : src/python/m5/smartdict.py => src/python/m5/util/smartdict.py
2009-09-22 15:24:16 -07:00
Polina Dudnik
4f463b3a26
Atomics bug fix
2009-09-21 13:04:52 -05:00
Polina Dudnik
114d8724dd
Functionality migrated to sequencer.
2009-09-17 17:39:52 -05:00
Derek Hower
31a3ef03cb
ruby: improve libruby_issue_request feedback
2009-09-15 21:37:40 -05:00
Derek Hower
144459032a
removed isReady from the library interface
2009-09-15 20:49:54 -05:00
Derek Hower
20da0f788c
ruby: added broadcast mechanism
2009-09-15 20:39:00 -05:00
Derek Hower
a06cfa199f
ruby: added unified assert script
2009-09-15 11:32:11 -05:00
Derek Hower
803cf3b434
ruby: made configuration parameters uniform
2009-09-15 09:47:11 -05:00
Derek Hower
11f3f83068
ruby:removed unused code from CacheMemory
2009-09-14 17:52:46 -05:00
Derek Hower
18e328cb63
ruby: configuration updates
2009-09-14 17:11:02 -05:00
Derek Hower
62b06f4a70
ruby: removed stray printf
2009-09-14 17:09:26 -05:00
Derek Hower
75c2baa81c
merge
2009-09-11 16:23:17 -05:00
Derek Hower
6fc2a4cadc
ruby: cleaned up unified MESI/MOESI configuration
2009-09-11 16:22:59 -05:00
Polina Dudnik
c7f0cf9803
Added new MESI files
2009-09-11 16:19:31 -05:00
Derek Hower
bd770274b0
merge
2009-09-11 14:17:21 -05:00
Polina Dudnik
8cdd7265ce
Config adjustments for MESI
2009-09-11 11:07:22 -05:00
Polina Dudnik
fc9ebc60db
Somayeh's MESI protocol with Polina's bug fixes
2009-09-11 11:04:55 -05:00
Polina Dudnik
7ef3e3b2c2
MI data corruption bug fix
2009-09-11 10:59:35 -05:00
Polina Dudnik
353a69eae7
Object print bug fix
2009-09-11 10:59:08 -05:00
Polina Dudnik
2af2e590e1
MOESI data corruption bug fix
2009-09-11 10:58:37 -05:00
Derek Hower
0637fe0bfd
ruby: removed SMT-related Sequencer assert
2009-09-10 21:19:54 -05:00
Derek Hower
ef87b6dc82
ruby: made randomization true by default
2009-09-10 21:19:34 -05:00
Derek Hower
26acdd4f34
protocol: made MI_example work with unordered networks
2009-09-10 21:18:09 -05:00
Derek Hower
e6e3ccf5c0
ruby: made L2 request/response latency based on cache latency by default
2009-09-10 13:32:16 -05:00
Derek Hower
3bb2fcfc84
ruby: made Locked read/write atomic requests within ruby
2009-09-09 12:39:10 -05:00
Derek Hower
edd522b30a
Automated merge with ssh://hg@m5sim.org/m5
2009-09-01 09:36:53 -05:00
Derek Hower
849bad7ad7
ruby: fixed config assertion failure
2009-09-01 09:35:48 -05:00
Polina Dudnik
041a8cefc7
[mq]: MOESI_patch
2009-08-31 16:38:22 -05:00
Polina Dudnik
a02dbd61f9
Reset the atomics flags if RMW_Read is not followed by a RMW_Read or RMW_Write
2009-08-28 15:09:41 -05:00
Polina Dudnik
95da6dc84c
imported patch mi_patch
2009-08-28 15:04:55 -05:00
Derek Hower
15aa180570
merge
2009-08-25 10:37:21 -05:00
Derek Hower
6cd552483b
Automated merge with ssh://hg@m5sim.org/m5
2009-08-25 10:10:23 -05:00
Derek Hower
03bf748ac7
ruby: CacheMemory tag lookup uses a hash instead of a loop
2009-08-25 10:09:47 -05:00
Polina Dudnik
a4fc1bad94
[mq]: first_patch
2009-08-21 15:52:46 -05:00
Derek Hower
efc1dddbd8
ruby: added random seed option to config scripts
2009-08-18 16:24:09 -05:00
Polina Dudnik
6654fe02da
Made servicing_atomic a counter and added started writes:
...
a function for setting the flag to indicate that
the rmw_writes started issuing
2009-08-15 12:45:11 -05:00
Polina Dudnik
a8e11cf3bb
Bug fix: indicate when writes started coming in
2009-08-14 17:57:54 -05:00
Polina Dudnik
ee3226d973
Merge with current branch
2009-08-14 15:30:25 -05:00
Polina Dudnik
0b0f47ec16
Added proc_id to CacheMsg for SMT.
...
Not yet necessary, but in case each of the threads
is allowed to initiate an atomic, will come in handy
2009-08-14 15:30:07 -05:00
Polina Dudnik
de25decf37
Multi-line RMW handling
2009-08-14 14:24:15 -05:00
Polina Dudnik
4b924fd16c
SMT atomics modifications:
...
don't allow enquing from other threads if servicing and atomic for a thread
2009-08-14 14:06:14 -05:00
Derek Hower
bcaf93d182
Automated merge with ssh://hg@m5sim.org/m5
2009-08-13 10:37:37 -05:00
Derek Hower
db40cb8f51
ruby: config bugfix
2009-08-13 10:37:09 -05:00
Tushar Krishna
35082a67b6
ruby/network data_msg_size bug fix with updated stats
2009-08-11 15:19:04 -07:00
Brad Beckmann
b89add1e3f
merged Tushar's bug fix with public repository changes
2009-08-11 12:22:41 -07:00
Derek Hower
1a452d228b
protocol: added recycle actions to MOESI DMA events
2009-08-09 13:58:40 -05:00
Tushar Krishna
b952eb19c1
bug fix for data_msg_size in network/Network.cc
2009-08-07 13:59:40 -07:00
Derek Hower
cbc52ef6c5
fixed MOESI_CMP_directory bug
2009-08-06 03:41:28 -05:00
Derek Hower
f5e0c56da2
protocol: fixed MOESI_CMP_directory bug
2009-08-06 01:15:55 -05:00
Derek Hower
a1b5a6320f
ruby: better configuration assert message
2009-08-06 01:15:23 -05:00
Derek Hower
dff7c9eaa0
merge
2009-08-05 14:23:32 -05:00
Derek Hower
fbf7391bb0
ruby: configuration supports multiple runs in same session
...
These changes allow to run Ruby-gems multiple times from the same
ruby-lang script with different configurations
2009-08-05 14:20:32 -05:00
Derek Hower
1276df51e2
protocol: made MI_example dma mapping generic
2009-08-05 14:17:23 -05:00
Derek Hower
7f012ef8da
ruby: made mapAddressToRange based off a bit count
2009-08-04 23:05:37 -05:00
Derek Hower
33b28fde7a
slicc: added MOESI_CMP_directory, DMA SequencerMsg, parameterized controllers
...
This changeset contains a lot of different changes that are too
mingled to separate. They are:
1. Added MOESI_CMP_directory
I made the changes necessary to bring back MOESI_CMP_directory,
including adding a DMA controller. I got rid of MOESI_CMP_directory_m
and made MOESI_CMP_directory use a memory controller. Added a new
configuration for two level protocols in general, and
MOESI_CMP_directory in particular.
2. DMA Sequencer uses a generic SequencerMsg
I will eventually make the cache Sequencer use this type as well. It
doesn't contain an offset field, just a physical address and a length.
MI_example has been updated to deal with this.
3. Parameterized Controllers
SLICC controllers can now take custom parameters to use for mapping,
latencies, etc. Currently, only int parameters are supported.
2009-08-04 12:52:52 -05:00
Derek Hower
c1e0bd1df4
slicc: generate html by default
2009-08-04 12:42:45 -05:00
Nathan Binkert
bd7af84d5e
slicc: better error messages when the python parser fails
2009-08-04 09:37:27 -07:00
Derek Hower
ac15e42c17
Automated merge with ssh://hg@m5sim.org/m5
2009-08-03 11:39:08 -05:00
Steve Reinhardt
a13a706a20
Fix setting of INST_FETCH flag for O3 CPU.
...
It's still broken in inorder.
Also enhance DPRINTFs in cache and physical memory so we
can see more easily whether it's getting set or not.
2009-08-01 22:50:14 -07:00
Steve Reinhardt
1c28004654
Clean up some inconsistencies with Request flags.
2009-08-01 22:50:13 -07:00
Steve Reinhardt
c0755e6085
Rename internal Request fields to start with '_'.
...
The inconsistency was causing a subtle bug with some of the
constructors where the params had the same name as the fields.
This is also a first step to switching the accessors over to
our new "standard", e.g., getVaddr() -> vaddr().
2009-08-01 22:50:10 -07:00
Derek Hower
d9ff3021ba
ruby: fixed clearStats
2009-07-29 13:46:58 -05:00
Derek Hower
469256d823
ruby: removed unused/incorrect profiler state
2009-07-27 21:43:43 -05:00
Polina Dudnik
e7a3bda497
Fixed the licences plus minor fixes for compilation
2009-07-22 20:28:32 -05:00
Derek Hower
7f34ee36ec
ruby: fixed sequencer RMW data bug
2009-07-21 19:42:09 -05:00
Derek Hower
80544cda8a
ruby: libruby_init now takes parsed Ruby-lang config text
...
libruby_init now expects to get a file that contains the output of
running a ruby-lang configuration, opposed to the ruby-lang
configuration itself.
2009-07-21 18:33:05 -05:00
Derek Hower
e59d0e3e89
ruby: moved cache stats from Profiler to CacheMemory
...
Caches are now responsible for their own statistic gathering. This
requires a direct callback from the protocol on misses, and so all
future protocols need to take this into account.
2009-07-20 09:40:43 -05:00
Derek Hower
308419b947
scons: removed RubyConfig from scons
2009-07-19 12:34:11 -05:00
Derek Hower
7cd2d8f687
ruby: removed all refs to old RubyConfig
2009-07-18 18:20:03 -05:00
Derek Hower
4bd7fe4c53
ruby: removed dead files
2009-07-18 18:18:37 -05:00
Derek Hower
f3d8d29342
ruby: removed dead files
2009-07-18 18:17:48 -05:00
Derek Hower
926ab6e6db
merge
2009-07-18 17:40:20 -05:00
Derek Hower
4b7ea4cb51
ruby: fixed dma sequencer bug
...
The DMASequencer was still using a parameter from the old RubyConfig,
causing an offset error when the requested data wasn't block aligned.
This changeset also includes a fix to MI_example for a similar bug.
2009-07-18 17:03:51 -05:00
Derek Hower
340845b139
ruby: better debug print for DataBlock
2009-07-18 16:58:33 -05:00
Derek Hower
7433029cd5
slicc: made coherence profilers per-controller
2009-07-18 16:54:45 -05:00
Polina Dudnik
e557b4beb5
merge
2009-07-16 15:40:48 -05:00
Polina Dudnik
23a405f5d8
Tester update
2009-07-15 10:46:22 -05:00
Polina Dudnik
289cd00326
Changed the state machine to generate code such that multiple processors can make atomic requests at once
2009-07-13 18:39:32 -05:00
Polina Dudnik
5f551d9ca2
1. Got rid of unused functions in DirectoryMemory
...
2. Reintroduced RMW_Read and RMW_Write
3. Defined -2 in the Sequencer as well as made a note about mandatory queue
Did not address the issues in the slicc because remaking the atomics altogether to allow
multiple processors to issue atomic requests at once
2009-07-13 17:22:29 -05:00
Derek Hower
100da6b326
merge
2009-07-13 14:49:51 -05:00
Derek Hower
d51445490d
regression: updated memtest-ruby stats
...
This also includes a change to the default Ruby random seed, which was
previously set using the wall clock. It is now set to 1234 so that
the stat files don't change for the regression tester.
2009-07-13 14:45:15 -05:00
Polina Dudnik
9a675a0391
Changes to add tracing and replaying command-line options
...
Trace is automatically ended upon a manual checkpoint
2009-07-13 12:50:10 -05:00
Polina Dudnik
b28058917c
Locked requests should actually be converted to ST rather than ATOMIC, because ATOMIC is for RMW.
2009-07-13 12:11:17 -05:00
Polina Dudnik
7a6bf67e47
Added atomics implementation which would work for MI_example
2009-07-13 12:06:23 -05:00
Polina Dudnik
c66af9f474
Minor fixes for compiling
2009-07-13 11:59:13 -05:00
Polina Dudnik
7606c71ea5
Replaced RMW with Locked. RMW will be used for the coherence-aided atomics other than LLSC
2009-07-13 11:37:56 -05:00
Polina Dudnik
faf823f947
Moved the lock check and clearing the lock into makeRequest
2009-07-13 11:34:38 -05:00
Polina Dudnik
86ce60e5cd
Forgot to replace one of the RubyRequest_RMW
2009-07-13 11:25:23 -05:00
Polina Dudnik
226981b2a6
Reintegrated Derek's functional implementation of atomics with a minor change: don't clear lock on failure
2009-07-13 11:13:29 -05:00