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258 commits

Author SHA1 Message Date
Bruce Mitchener
2e417719d4 Fix typos. 2024-11-26 22:10:23 +07:00
Richard Brooksby
dc27b3a3dc Generalising mps_addr_object, arenaaddrobject, pooladdrobject for pools that do not use segments. 2023-06-07 14:57:55 +01:00
Jonathan Holburn
20f96d80a5 Add implementation of mps_addr_object as implemented by jph on top of branch cet-merge-2 and subsequently became mps-2022. directly fix some whitespace according to c syntax conventions and remove boolean operation on a pointer 2023-05-16 17:26:00 +01:00
Gareth Rees
b0a1af5c05 Represent the spare memory as a land. 2022-01-17 20:19:07 +00:00
Gareth Rees
7c6c56b541 Ensure that the mps builds with clang 10. 
Clang 10 turns on -Wimplicit-int-float-conversion, and on 64-bit
platforms this issues a warning that implicit conversions to double
from Size and unsigned long "may lose precision".

This commit adds casts to (double) for all such conversions. The loss
of precision is either impossible in practice (because a double can
represent all integers up to 2**53, which is about 9 petabytes, well
beyond the addressing capabilities for current CPUs), or else
acceptable, because we are accumulating an approximate quantity like
"collection work" or "fill size" (that has to cope with loss of
precision due in any case), or computing a threshold like the spare
commit limit where it is acceptable for it to be somewhat approximate.
 2021-01-10 10:42:05 +00:00
Gareth Rees
f47c389a52 Fix indentation of second clause of license. 2020-08-30 10:13:06 +01:00
Gareth Rees
af0f431eda Use https: instead of http: when linking to the ravenbrook web site. 2020-08-30 10:13:03 +01:00
Peter Jackson
4de2606846 Publish licence updates in code directory. 
Publish minor changes to readme and configure files in main directory.
Main directory and code directory licence texts are now fully updated.

Copied from Perforce
 Change: 196994
 2020-06-11 17:05:40 +01:00
Gareth Rees
4eda4e85c7 Use tags with dots; regularize design references from code. 
Copied from Perforce
 Change: 195761
 2018-11-29 17:12:29 +00:00
Gareth Rees
cbf9885146 Document the event parameters. 
Split event ArenaAccess into ArenaAccessBegin and ArenaAccessEnd to avoid the need for the count field.
New events SegReclaim and SegScan.
Delete some redundant events: AMCFinish (PoolFinish), AMCFix, AMCFixForward, AMCFixInPlace (TraceFix), AMCGenCreate (GenInit), AMCGenDestroy (GenFinish), AMCInit (PoolInitAMC), AMCReclaim (SegReclaim), AMCScanBegin, AMCScanEnd (SegScan), ArenaWriteFaults (ArenaAccessBegin), PoolInitMV, TraceScanSeg (SegScan).
Add result code field to events ArenaAllocFail, CommitLimitSet, SegAllocFail.
Remove arena field from events PoolInitAMS, PoolInitMFS, PoolInitMVFF (already appeared in generic PoolInit event).

Copied from Perforce
 Change: 195247
 2018-10-14 14:04:40 +01:00
Gareth Rees
d2d2895c03 Catch-up merge from master sources at changelevel 194022 to branch/2018-06-20/monitor. 
Copied from Perforce
 Change: 195071
 2018-09-15 21:29:28 +01:00
Gareth Rees
bfe482e9e8 Avoid division by zero. 
Copied from Perforce
 Change: 194983
 2018-08-14 09:51:41 +01:00
Gareth Rees
cdb8c9bc5e Merge branch/2018-08-01/land-insert-steal into the master sources. 
Copied from Perforce
 Change: 194968
 2018-08-13 14:42:25 +01:00
Gareth Rees
5a8fe51e8c Call arenafreelandinsertextend before landinsertsteal, to reduce the amount of fragmentation. 
Copied from Perforce
 Change: 194965
 2018-08-13 14:29:19 +01:00
Gareth Rees
5af520e0b0 If mps_key_spare_commit_limit and mps_key_spare are both given, then the latter takes precedence. 
If MPS_KEY_SPARE_COMMIT_LIMIT has a value greater than the commit limit, clamp the spare commit limit to 1.0.
Add smoke test coverage of MPS_KEY_SPARE, mps_arena_spare, and mps_arena_spare_set.
Document the deprecation of MPS_KEY_SPARE_COMMIT_LIMIT.

Copied from Perforce
 Change: 194948
 2018-08-13 10:30:18 +01:00
Gareth Rees
77ed9d9f4f Address points 1-10, 13-14 from <https://info.ravenbrook.com/mail/2018/08/03/10-09-09/0/> 
Copied from Perforce
 Change: 194942
 2018-08-13 08:10:55 +01:00
Gareth Rees
bcb24de010 Catch-up merge from master sources at changelevel 194869 to branch/2016-03-04/spare-fraction. 
Copied from Perforce
 Change: 194872
 2018-08-02 15:14:23 +01:00
Gareth Rees
3fcea3ce5d New land functions landinsertsteal and landdeletesteal and unit test. 
Use LandInsertSteal instead of arenaFreeLandInsertSteal.
Add regression test for job004102.

Copied from Perforce
 Change: 194861
 2018-08-02 13:16:15 +01:00
Gareth Rees
2b0fec987d Clean up function definitions: no need for "extern"; opening brace goes on new line. 
Copied from Perforce
 Change: 194654
 2018-07-15 19:05:39 +01:00
Gareth Rees
940c52fddd Merge branch/2016-03-01/mvff-control into the master sources. 
Copied from Perforce
 Change: 194442
 2018-07-05 13:37:01 +01:00
Gareth Rees
bb53551d8f Merge branch/2018-07-04/mvff-perf into the master sources. 
Copied from Perforce
 Change: 194439
 2018-07-05 12:54:16 +01:00
Gareth Rees
17504d0242 Mfsextend now takes (base, limit) instead of (base, size) for consistency with the rest of the mps. 
Copied from Perforce
 Change: 194408
 2018-07-04 16:31:45 +01:00
Gareth Rees
6c3da83fb2 Avoid "dereferencing type-punned pointer might break strict-aliasing rules" warning from gcc. 
Copied from Perforce
 Change: 194403
 2018-07-04 15:56:51 +01:00
Gareth Rees
4946085f89 Integrate branch/2016-03-15/sunrise/...@190086,190087 to pick up elimination of tractp from mfs. 
Copied from Perforce
 Change: 194372
 2018-07-03 10:34:46 +01:00
Gareth Rees
5ee645763e Catch-up merge from master sources at changelevel 194314 to branch/2016-03-01/mvff-control. 
Copied from Perforce
 Change: 194323
 2018-06-29 14:28:33 +01:00
Gareth Rees
c3a7104eff Label the time series in the monitor. 
In telemetry output, distinguish between labelling of (client) addresses and (MPS-internal) pointers, to avoid transgressing the distinction.
Add arena grain size, class, and serial number to ArenaCreate* events.
Add pool class and serial number to PoolInit event.

Copied from Perforce
 Change: 194086
 2018-06-22 11:05:46 +01:00
Gareth Rees
e961c80ff9 Arenafree event needs to include the pool so that telemetry-consuming applications can update pool statistics without having to remember the addresses of all the allocations. 
Copied from Perforce
 Change: 194050
 2018-06-21 13:57:42 +01:00
Gareth Rees
2962cdff8b Check that arena, buffer, land classes override sets of related methods. 
Copied from Perforce
 Change: 193060
 ServerID: perforce.ravenbrook.com
 2017-03-30 20:43:43 +01:00
Gareth Rees
17c1449096 Check that segment classes override sets of related methods. 
Add missing finish functions amcSegFinish, mrgLinkSegFinish, mrgRefSegFinish, sncSegFinish.
Check all class constructor results.

Copied from Perforce
 Change: 193055
 ServerID: perforce.ravenbrook.com
 2017-03-30 11:37:41 +01:00
Gareth Rees
79d301f528 Cherry-pick change 192595 from custom/cet/main, removing mps_addr_object. this function failed to solve the problem of decoding the stack on 64-bit windows, because the stack may need to be decoded after an mps assertion failure, in which case the arena lock is held and mps_addr_object cannot be called. we eventually solved the problem in a different way (using mps_arena_postmortem) and mps_addr_object is no longer used. 
Copied from Perforce
 Change: 192637
 ServerID: perforce.ravenbrook.com
 2016-10-19 14:13:38 +01:00
Gareth Rees
91551170b1 Remove return statements that have no effect. 
Copied from Perforce
 Change: 192529
 ServerID: perforce.ravenbrook.com
 2016-10-13 15:17:50 +01:00
Gareth Rees
d8c32f0d3f New functions mps_arena_busy and mps_arena_postmortem, plus test coverage. 
Copied from Perforce
 Change: 192247
 ServerID: perforce.ravenbrook.com
 2016-09-08 13:55:43 +01:00
Richard Brooksby
2065bf5351 Renaming class fields called "protocol" to "instclassstruct" in line with usual mps convention. 
Copied from Perforce
 Change: 191685
 ServerID: perforce.ravenbrook.com
 2016-04-27 14:25:54 +01:00
Richard Brooksby
139c44155b Converting arena finish and describe methods to specialize instfinish and instdescribe. 
Copied from Perforce
 Change: 191614
 ServerID: perforce.ravenbrook.com
 2016-04-23 16:31:26 +01:00
Richard Brooksby
f288d65473 Removing bogus arenatrivdescribe and turning arenadescribe the right way in. 
Copied from Perforce
 Change: 191480
 ServerID: perforce.ravenbrook.com
 2016-04-21 15:27:41 +01:00
Richard Brooksby
efb1d94578 Catch-up merge from master sources to branch/2016-04-08/protidying. 
Copied from Perforce
 Change: 191471
 ServerID: perforce.ravenbrook.com
 2016-04-21 14:46:10 +01:00
Gareth Rees
7e8d63a21c Merge branch/2016-04-11/job003998. 
Copied from Perforce
 Change: 191388
 ServerID: perforce.ravenbrook.com
 2016-04-20 17:56:59 +01:00
Gareth Rees
10be1ec77f Initialize arena->zoneshift to zoneshiftunset (which is not a valid shift) and modify the arena checking to spot this value. previously a default shift value (namely 20) was used, but this value was bogus as the zone shift is not determined until the class initialization runs. 
Copied from Perforce
 Change: 191370
 ServerID: perforce.ravenbrook.com
 2016-04-20 15:51:16 +01:00
Richard Brooksby
f1af541a95 Removing a note about initialization order that no longer applies. 
Copied from Perforce
 Change: 191305
 ServerID: perforce.ravenbrook.com
 2016-04-19 23:00:02 +01:00
Richard Brooksby
32250731d7 Avoid using "class" as an identifier, since tools like lldb parse expressions as c++, and it can't be named. 
Copied from Perforce
 Change: 191304
 ServerID: perforce.ravenbrook.com
 2016-04-19 23:00:02 +01:00
Richard Brooksby
06ef28892a Catch-up merge from master sources to branch/2016-04-08/protidying. 
Copied from Perforce
 Change: 191251
 ServerID: perforce.ravenbrook.com
 2016-04-19 16:37:51 +01:00
Richard Brooksby
90a825ad34 Converting a low priority fixme into a todo for later. 
Copied from Perforce
 Change: 191013
 ServerID: perforce.ravenbrook.com
 2016-04-12 17:48:29 +01:00
Richard Brooksby
d31995246d Making classes into instances of kinds, allowing subclass tests to be used to validate classes as well. 
Copied from Perforce
 Change: 190958
 ServerID: perforce.ravenbrook.com
 2016-04-11 20:58:39 +01:00
Richard Brooksby
12d4dfda16 Eliminating generated classof* and setclassof* functions in favour of checked poly macros. 
Copied from Perforce
 Change: 190938
 ServerID: perforce.ravenbrook.com
 2016-04-11 18:06:47 +01:00
Richard Brooksby
62533b8c71 Converting many uses of classof* to method macros. 
Copied from Perforce
 Change: 190937
 ServerID: perforce.ravenbrook.com
 2016-04-11 17:59:36 +01:00
Gareth Rees
d6fd31cecb Assert that the range passed to landinsert is not empty. 
Assert that the range passed to ArenaFreeLandInsert is not empty.
Assert that there's address space left over in a chunk after the overheads have been accounted for.

Copied from Perforce
 Change: 190920
 ServerID: perforce.ravenbrook.com
 2016-04-11 16:09:51 +01:00
Richard Brooksby
3bf43b069f Using mustbea and couldbea when calling inst functions. 
Copied from Perforce
 Change: 190924
 ServerID: perforce.ravenbrook.com
 2016-04-11 15:17:24 +01:00
Gareth Rees
7660e38f3e Catch-up merge from master sources to branch/2015-08-11/compact. 
Copied from Perforce
 Change: 190901
 ServerID: perforce.ravenbrook.com
 2016-04-11 14:40:44 +01:00
Richard Brooksby
78ad983c55 Adding classname for use in describe methods. 
Fixing error path to use class destroy in ArenaCreate.
Using MustBeA to reduce boiler plate in land classes.

Copied from Perforce
 Change: 190904
 ServerID: perforce.ravenbrook.com
 2016-04-11 14:06:28 +01:00
Richard Brooksby
c4ef464d0e Using superclass init and finish in the arena bootstrap and teardown. 
Copied from Perforce
 Change: 190895
 ServerID: perforce.ravenbrook.com
 2016-04-11 13:35:16 +01:00