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109 commits

Author SHA1 Message Date
Gareth Rees
8eb003846d Fix problems identified by rb in review <https://info.ravenbrook.com/mail/2014/06/04/15-13-24/0/>. 
Copied from Perforce
 Change: 186449
 ServerID: perforce.ravenbrook.com
 2014-06-08 20:28:33 +01:00
Gareth Rees
3704522c58 Catch-up merge from master sources @186352 to branch/2014-04-15/mvffnoseg. 
Copied from Perforce
 Change: 186355
 ServerID: perforce.ravenbrook.com
 2014-05-29 16:03:34 +01:00
Gareth Rees
51e39dc087 Pass and check special closure values unused_pointer, unused_size instead of null, 0. 
Copied from Perforce
 Change: 186352
 ServerID: perforce.ravenbrook.com
 2014-05-29 15:28:33 +01:00
Gareth Rees
8e4721db4c Fix problems identified by rb in review <https://info.ravenbrook.com/mail/2014/05/29/13-01-02/0/>. 
Copied from Perforce
 Change: 186347
 ServerID: perforce.ravenbrook.com
 2014-05-29 14:50:36 +01:00
Gareth Rees
fd57486106 Fix problems identified by dl in review <https://info.ravenbrook.com/mail/2014/05/23/12-44-54/0/>. 
Copied from Perforce
 Change: 186300
 ServerID: perforce.ravenbrook.com
 2014-05-25 20:49:22 +01:00
Gareth Rees
181767e4db Split land iteration into two functions, one which deletes ranges, the other which does not. 
Copied from Perforce
 Change: 186298
 ServerID: perforce.ravenbrook.com
 2014-05-25 19:26:48 +01:00
Gareth Rees
bb21449097 Landiterate now returns a bool indicating whether all visitor calls returned true. 
Copied from Perforce
 Change: 186165
 ServerID: perforce.ravenbrook.com
 2014-05-18 22:46:16 +01:00
Gareth Rees
7cd4759316 Catch-up merge from branch/2014-03-30/addrset to branch/2014-04-15/mvffnoseg. 
Copied from Perforce
 Change: 186082
 ServerID: perforce.ravenbrook.com
 2014-05-13 16:27:17 +01:00
Gareth Rees
34cc9d49e4 Catch-up merge from master sources @186077 to branch/2014-03-30/addrset. 
Copied from Perforce
 Change: 186081
 ServerID: perforce.ravenbrook.com
 2014-05-13 16:21:39 +01:00
Gareth Rees
f4a4f1e250 Merge branch/2014-02-23/mvff-tune into branch/2014-04-15/mvffnoseg. 
Copied from Perforce
 Change: 186079
 ServerID: perforce.ravenbrook.com
 2014-05-13 16:10:51 +01:00
Gareth Rees
8e72725b5b Assert that size > 0 in cbsfindlargest. (merged from change 184496.) 
Copied from Perforce
 Change: 186075
 ServerID: perforce.ravenbrook.com
 2014-05-13 13:44:42 +01:00
Gareth Rees
7985175687 Fixed a bug in cbsfindlargest where it always deleted the entire range found even when finddeletelow or finddeletehigh were passed. (merged from change 184493.) 
Copied from Perforce
 Change: 186074
 ServerID: perforce.ravenbrook.com
 2014-05-13 13:33:46 +01:00
Gareth Rees
58b2d71836 Bug fix. ensuring cbsfinddeleterange returns oldrangereturn even if it doesn’t delete a block. (merged from change 184485.) 
Copied from Perforce
 Change: 186070
 ServerID: perforce.ravenbrook.com
 2014-05-13 12:30:23 +01:00
Gareth Rees
3a1ce9493f Remove mps_key_cbs_extend_by and mfsextendself keyword arguments to cbsinit. these were unused and obsoleted by cbsblockpool. 
Copied from Perforce
 Change: 186006
 ServerID: perforce.ravenbrook.com
 2014-05-11 19:09:44 +01:00
Gareth Rees
7620c6fcd1 Fix rash build on os x by adding the unused attribute to functions declared static that are not called in the rash variety. 
Copied from Perforce
 Change: 185915
 ServerID: perforce.ravenbrook.com
 2014-05-01 12:18:00 +01:00
Gareth Rees
29035a7f67 Put cbsfindinzones back where it was (moving it broke the build). 
Copied from Perforce
 Change: 185584
 ServerID: perforce.ravenbrook.com
 2014-04-16 11:19:55 +01:00
Gareth Rees
b3a3b0b8fc Move cbsfindinzones so that diff is cleaner. 
Copied from Perforce
 Change: 185578
 ServerID: perforce.ravenbrook.com
 2014-04-16 10:24:26 +01:00
Gareth Rees
87b3880405 New generic function landsize returns the total size of ranges in a land (if the land supports it). implement it for all land classes. 
The MVFF pool class doesn't have to maintain its free size any more: it can just call LandSize.
Move re-entrancy protection from CBS to Land. This allows us to remove some CBS functions. (But requires some adjustment in failoverDelete.)
In MVFF, do more checking of mvff->total.

Copied from Perforce
 Change: 185569
 ServerID: perforce.ravenbrook.com
 2014-04-15 16:35:34 +01:00
Gareth Rees
42f18f93af Catch-up merge from master/...@185556 to branch/2014-03-30/addrset. 
Copied from Perforce
 Change: 185563
 ServerID: perforce.ravenbrook.com
 2014-04-15 13:14:50 +01:00
Gareth Rees
9c8713f51b Fix problems found by coverity. see <https://info.ravenbrook.com/mail/2014/04/10/23-23-42/0/> for full analysis. 
Copied from Perforce
 Change: 185445
 ServerID: perforce.ravenbrook.com
 2014-04-11 00:26:48 +01:00
Gareth Rees
b90f8b9bcd Use cbs subclasses to implement the fast-find and find-in-zones features. this avoids the need to control behaviour by passing booleans, and it means that there is no wasted space in the cbs block structure when these features are not used. 
Bring splay tree design up to date; add missing diagrams; move it to the "current" section of the manual.

Copied from Perforce
 Change: 185294
 ServerID: perforce.ravenbrook.com
 2014-04-07 15:36:18 +01:00
Gareth Rees
4b5d396792 Catch-up merge from master sources to branch/2014-03-30/addrset. 
Copied from Perforce
 Change: 185288
 ServerID: perforce.ravenbrook.com
 2014-04-07 15:02:09 +01:00
Gareth Rees
f2776dc0b4 Can't use checkd_nosig(tree, ...) because treeempty is null. 
arena->enabledMessageTypes might be NULL.

Copied from Perforce
 Change: 185271
 ServerID: perforce.ravenbrook.com
 2014-04-07 10:14:40 +01:00
Gareth Rees
d3d2795fce Improve control over checking: 
1. Where Type is a pointer type with a signature, replace CHECKL(TypeCheck(val)) with CHECKD(Type, val).
2. Where Type is a pointer type with no signature, replace CHECKL(TypeCheck(val)) with CHECKD_NOSIG(Type, val).
3. Where Type is a pointer type with a signature, but the structure is not visible at point of checking, replace CHECKL(TypeCheck(val)) with CHECKD_NOSIG(Type, val). Reference <design/check/#.hidden-type>
4. Make BTCheck extern and use it where possible.
5. Replace AVER(TypeCheck(val)) with AVERT(Type, val).

Copied from Perforce
 Change: 185263
 ServerID: perforce.ravenbrook.com
 2014-04-06 22:51:05 +01:00
Gareth Rees
ce6b34aa8f Test the failover module (both always and never failing over). 
Fix result code bug in failoverInsert.
Test all result codes in fotest.
Tidy up code and documentation.

Copied from Perforce
 Change: 185207
 ServerID: perforce.ravenbrook.com
 2014-04-03 14:46:58 +01:00
Gareth Rees
0b159dc650 New module failover implements a fail-over allocator as a land class. 
Use Failover in MVT and MVFF.
Test Failover in landtest.
Implementation of LandFindInZones for Freelist (untested).
Remove signature from RangeStruct so we can embed it without a space cost.

Copied from Perforce
 Change: 185196
 ServerID: perforce.ravenbrook.com
 2014-04-03 12:52:23 +01:00
Gareth Rees
b409ae89f6 Turn freelist into a land class. 
Copied from Perforce
 Change: 185155
 ServerID: perforce.ravenbrook.com
 2014-04-02 14:01:18 +01:00
Gareth Rees
d2cbfda452 First pass at implementation of lands (collections of address ranges). 100% boilerplate! 
Copied from Perforce
 Change: 185131
 ServerID: perforce.ravenbrook.com
 2014-04-01 19:51:55 +01:00
Richard Brooksby
687c50b762 Implementing top-down (last fit) allocation in zones. 
Copied from Perforce
 Change: 184771
 ServerID: perforce.ravenbrook.com
 2014-03-13 12:06:28 +00:00
Richard Brooksby
2ce13f82dc Incomplete response to code review. see <https://info.ravenbrook.com/mail/2014/03/07/11-21-03/0/>. 
Copied from Perforce
 Change: 184735
 ServerID: perforce.ravenbrook.com
 2014-03-11 16:39:11 +00:00
Richard Brooksby
2b9719e4bd Catch-up merge from master. 
Copied from Perforce
 Change: 184732
 ServerID: perforce.ravenbrook.com
 2014-03-11 16:30:47 +00:00
Richard Brooksby
1e8eec530b Catch-up merge from branch/2014-02-22/splay-tune to pick up code review changes. 
Copied from Perforce
 Change: 184727
 ServerID: perforce.ravenbrook.com
 2014-03-11 16:07:19 +00:00
Richard Brooksby
16e0798806 Responding to code review <https://info.ravenbrook.com/mail/2014/03/07/22-40-36/0/>. 
Using TREE_ELT where appropriate.
Using AVERT consistently on Tree, but see job003691.

Copied from Perforce
 Change: 184724
 ServerID: perforce.ravenbrook.com
 2014-03-11 15:46:51 +00:00
Richard Brooksby
4e28809e4a Responding to code review. see <https://info.ravenbrook.com/mail/2014/03/04/12-02-27/0/>. 
Copied from Perforce
 Change: 184669
 ServerID: perforce.ravenbrook.com
 2014-03-07 15:00:54 +00:00
Richard Brooksby
d1473656ee Resolving questions left behind in fixmes. 
Copied from Perforce
 Change: 184609
 ServerID: perforce.ravenbrook.com
 2014-02-28 14:42:44 +00:00
Richard Brooksby
d8362f2cad Merging branch/2014-02-22/splay-tune to pick up splay tree improvements. 
Copied from Perforce
 Change: 184606
 ServerID: perforce.ravenbrook.com
 2014-02-28 14:27:40 +00:00
Richard Brooksby
0673536606 Fixing res/bool confusion found by “xc/debug/fbmtest 244032167” 
Copied from Perforce
 Change: 184595
 ServerID: perforce.ravenbrook.com
 2014-02-28 10:53:07 +00:00
Richard Brooksby
887c6e3845 Tidying up interfaces to cbsinit and cbsfindinzones. 
Documenting assumptions about CBS block allocation used by the arena.

Copied from Perforce
 Change: 184593
 ServerID: perforce.ravenbrook.com
 2014-02-28 10:30:32 +00:00
Richard Brooksby
14620f8c24 Simplifying the interface to cbsfindinzones. 
Speeding up CBSFindInZones a bit.

Copied from Perforce
 Change: 184589
 ServerID: perforce.ravenbrook.com
 2014-02-28 01:25:18 +00:00
Richard Brooksby
ddfec2c708 Eliminating complex zonedcbs adt and reintroducing a cbs with zone summaries. removing the default “high” segment preference, that caused the cbs trees to unbalance, and isn’t required outside of ep. considerable reduction in code and speed up, now at parity with master on test xc/release/gcbench -x 1234 amc 
Copied from Perforce
 Change: 184587
 ServerID: perforce.ravenbrook.com
 2014-02-28 00:35:05 +00:00
Richard Brooksby
3b3e01b10f Searching the freecbs now respects the “high” preference, though not yet within blocks. 
Copied from Perforce
 Change: 184574
 ServerID: perforce.ravenbrook.com
 2014-02-26 19:29:05 +00:00
Richard Brooksby
dc83b10c0d Fixing cbsfindfirstinzones to return a res, because it can fail when it can’t allocate a cbs block, unlike cbsfindfirst. 
Fixing related corner case in arenaAllocFindInFreeCBS when it thought it couldn’t find a block when it was in fact running out of nodes.  This was revealed by “gcbench --npass 1 --arena-size 1M --seed 945632066 --niter 1 amc”.
Fixing draft ArenaFreeCBSDelete after exercising it.

Copied from Perforce
 Change: 184568
 ServerID: perforce.ravenbrook.com
 2014-02-26 17:40:39 +00:00
Richard Brooksby
4fdddc36e0 Backing out zone set summary in the cbs. this isn't needed for speed now that there's a cbs per zone in the arena, and it will slow down all other cbss. 
Copied from Perforce
 Change: 184561
 ServerID: perforce.ravenbrook.com
 2014-02-26 14:24:34 +00:00
Gareth Rees
6971bee496 Make mps_args_done obsolete. 
Copied from Perforce
 Change: 184543
 ServerID: perforce.ravenbrook.com
 2014-02-26 12:47:27 +00:00
Richard Brooksby
8f85caa56e Fixing bug where cbs overwrites its own blockpool pointer with garbage. 
Copied from Perforce
 Change: 184532
 ServerID: perforce.ravenbrook.com
 2014-02-25 19:19:37 +00:00
Richard Brooksby
b6b306bb48 Pass range bases directly as treekeys, speeding up cbscompare and most cbs operations. 
Copied from Perforce
 Change: 184500
 ServerID: perforce.ravenbrook.com
 2014-02-24 23:40:50 +00:00
Richard Brooksby
5f9e072412 Bug fix. nonsensical case in cbsfindlargest when size is passed as zero. 
Added RangeCopy.

Copied from Perforce
 Change: 184496
 ServerID: perforce.ravenbrook.com
 2014-02-24 23:02:42 +00:00
Richard Brooksby
7db856f7b8 Fixed a bug in cbsfindlargest where it always deleted the entire range found even when finddeletelow or finddeletehigh were passed. 
Copied from Perforce
 Change: 184493
 ServerID: perforce.ravenbrook.com
 2014-02-24 22:48:48 +00:00
Richard Brooksby
a28fda3fc5 Making assertions in cbsupdatenode critical, since this is extremely hot in any cbs with fast find. 
Copied from Perforce
 Change: 184492
 ServerID: perforce.ravenbrook.com
 2014-02-24 22:27:16 +00:00
Richard Brooksby
b876c0ff82 Only finishing the cbs block pool when cbs created it. oops. 
Copied from Perforce
 Change: 184488
 ServerID: perforce.ravenbrook.com
 2014-02-24 21:14:40 +00:00