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131 commits

Author SHA1 Message Date
Richard Brooksby
e09dbaab0f Promoting shield to first class structure. 
Copied from Perforce
 Change: 190219
 ServerID: perforce.ravenbrook.com
 2016-03-20 00:32:43 +00:00
Richard Brooksby
ff69c9af04 Separating flag for segment in shield cache from depth, clarifying code and optimising segfree somewhat. 
Copied from Perforce
 Change: 190194
 ServerID: perforce.ravenbrook.com
 2016-03-19 13:42:09 +00:00
Richard Brooksby
641cdc164c Catch-up merge from master sources to branch/2016-03-11/shield-coalesce. 
Copied from Perforce
 Change: 190150
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 2016-03-17 13:53:40 +00:00
Richard Brooksby
662a1b1b9b Allocate the shield cache. also improve commentary quite a bit. 
Copied from Perforce
 Change: 190147
 ServerID: perforce.ravenbrook.com
 2016-03-17 13:37:40 +00:00
Richard Brooksby
9583c0f68a Merging branch mps/branch/2016-03-13/without-reservation into master sources. 
Copied from Perforce
 Change: 190106
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 2016-03-15 13:19:27 +00:00
Richard Brooksby
26da5b46b0 Catch-up merge from master sources to branch/2014-10-13/format. 
Copied from Perforce
 Change: 190060
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 2016-03-15 10:02:21 +00:00
Richard Brooksby
d4a055f70b Merging branch/2016-03-12/pause into the master sources. 
Copied from Perforce
 Change: 190053
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 2016-03-15 06:31:08 +00:00
Gareth Rees
e034e7aeea Address points made by rb in review <https://info.ravenbrook.com/mail/2016/03/14/18-48-19/0/> 
Copied from Perforce
 Change: 190031
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 2016-03-14 20:10:14 +00:00
Richard Brooksby
ca7dcd913e Basic removal of the reservoir pool from code and design. 
Copied from Perforce
 Change: 190000
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 2016-03-13 20:32:24 +00:00
Gareth Rees
31de518300 Catch-up merge from branch/2015-08-25/tradeoff to branch/2016-03-12/pause (to pick up the morework value in arenapoll). 
Copied from Perforce
 Change: 189918
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 2016-03-12 20:32:41 +00:00
Gareth Rees
f9041d9a20 Documentation and interface for pause time control (no implementation yet). 
Copied from Perforce
 Change: 189915
 ServerID: perforce.ravenbrook.com
 2016-03-12 20:25:33 +00:00
Richard Brooksby
275770ed43 Catch-up merge from master sources to branch/2015-08-25/tradeoff. 
Copied from Perforce
 Change: 189891
 ServerID: perforce.ravenbrook.com
 2016-03-12 15:13:15 +00:00
Gareth Rees
973f5369e1 Rename chain.h to locus.h, for consistency with other modules, where the interface has the same name as the implemention. 
Copied from Perforce
 Change: 189682
 ServerID: perforce.ravenbrook.com
 2016-03-06 18:56:32 +00:00
Richard Brooksby
50384dd478 Fixing terminology from "top" to "hot end" of stack. 
Copied from Perforce
 Change: 189530
 ServerID: perforce.ravenbrook.com
 2016-03-02 10:16:44 +00:00
Richard Brooksby
a3efd2d694 Catch-up merge from branch/2015-08-06/config to remove arenaconfigure. 
Copied from Perforce
 Change: 189335
 ServerID: perforce.ravenbrook.com
 2016-02-25 22:59:06 +00:00
Richard Brooksby
a0e001c000 Catch up merge from master sources. 
Copied from Perforce
 Change: 189130
 ServerID: perforce.ravenbrook.com
 2016-02-10 21:10:25 +00:00
Richard Brooksby
eac348d664 Catch-up merge from masters. 
Copied from Perforce
 Change: 188921
 ServerID: perforce.ravenbrook.com
 2016-01-19 16:22:39 +00:00
Gareth Rees
edf30c06b4 New function mps_root_create_reg_masked applies a mask and pattern test to all words in registers and on the stack when scanning them. this supports tagged references in these locations. 
Consistently use the type "Word *" for pointers into the stack or into saved registers.
Remove TraceScanAreaTagged.

Copied from Perforce
 Change: 188231
 ServerID: perforce.ravenbrook.com
 2015-09-04 12:22:03 +01:00
Gareth Rees
b4db3bd09f Introduce new type work representing a measure of work done by the collector. use this systematically to make the code clearer. 
Copied from Perforce
 Change: 188210
 ServerID: perforce.ravenbrook.com
 2015-09-03 13:01:55 +01:00
Gareth Rees
511ec1c025 Catch-up merge from branch/2015-08-10/arena-create to branch/2015-08-06/config. 
Copied from Perforce
 Change: 188104
 ServerID: perforce.ravenbrook.com
 2015-08-10 12:49:36 +01:00
Gareth Rees
6359b0ed98 Merge branch/2014-09-29/reserved into the master sources. 
Copied from Perforce
 Change: 188090
 ServerID: perforce.ravenbrook.com
 2015-08-07 16:33:43 +01:00
Gareth Rees
703c1ee5f5 New function mps_arena_configure provides keyword argument interface to changing the properties of an arena. 
New keyword arguments MPS_KEY_ARENA_COMMIT_LIMIT and MPS_KEY_SPARE_ARENA_COMMIT_LIMIT can be passed to mps_arena_create_k or mps_arena_configure.
Deprecate mps_arena_commit_limit_set and mps_arena_spare_commit_limit_set.

Copied from Perforce
 Change: 188085
 ServerID: perforce.ravenbrook.com
 2015-08-06 17:02:51 +01:00
Gareth Rees
abbdcfc59f Assert if a thread dies while registered, but make a best effort to continue working after the assertion, by marking the thread as dead and moving it to a ring of dead threads. 
Copied from Perforce
 Change: 187393
 ServerID: perforce.ravenbrook.com
 2014-10-25 17:41:42 +01:00
Gareth Rees
4ce030ad13 Use a reference count to discover cases where a format is deleted when a pool is still using it, as suggested by rb <https://info.ravenbrook.com/mail/2014/10/16/13-35-06/0/>. 
Copied from Perforce
 Change: 187279
 ServerID: perforce.ravenbrook.com
 2014-10-16 22:59:00 +01:00
Gareth Rees
72a38afb68 Remove unused pool {fill,empty}{mutator,internal}size statistics. 
Copied from Perforce
 Change: 187270
 ServerID: perforce.ravenbrook.com
 2014-10-14 22:37:55 +01:00
Gareth Rees
f65f1db83e Attach the pools using a format to a ring in the format, so that when we destroy the format, we can check that no pools are using it. 
Copied from Perforce
 Change: 187253
 ServerID: perforce.ravenbrook.com
 2014-10-13 22:44:20 +01:00
Gareth Rees
72209444c0 Store reserved address space associated with chunk in a field in the chunkstruct, as suggested by rb in <https://info.ravenbrook.com/mail/2014/10/01/13-55-44/0/>. 
Copied from Perforce
 Change: 187104
 ServerID: perforce.ravenbrook.com
 2014-10-01 21:40:50 +01:00
Gareth Rees
53c5301a9e Instead of iterating over the chunks to compute the total reserved address space, maintain a running total in arenachunkinsert and (new function) arenachunkremoved. 
New arena class method chunkReserved handles the class-specific computation of the reserved size of a chunk.

Copied from Perforce
 Change: 187089
 ServerID: perforce.ravenbrook.com
 2014-09-29 22:50:46 +01:00
Gareth Rees
21f6addf6c Rename mps_class_t to mps_pool_class_t for clarity. 
Retain a typedef for mps_class_t for backwards compatibility.

Copied from Perforce
 Change: 187065
 ServerID: perforce.ravenbrook.com
 2014-09-27 13:37:38 +01:00
Gareth Rees
7c2e271e60 Rename segpref to locuspref -- this structure describes preferences for the placement of any kind of address, not just segments. 
Add LocusPrefDescribe and use it in MVFFDescribe.

Copied from Perforce
 Change: 187061
 ServerID: perforce.ravenbrook.com
 2014-09-27 11:27:00 +01:00
Gareth Rees
a13a1aa1df Catch-up merge from master sources @186564 to branch/2014-06-11/grain. 
Copied from Perforce
 Change: 186572
 ServerID: perforce.ravenbrook.com
 2014-06-13 15:30:46 +01:00
Gareth Rees
100405cac2 Restore the chunk ring. 
Copied from Perforce
 Change: 186558
 ServerID: perforce.ravenbrook.com
 2014-06-13 12:31:47 +01:00
Gareth Rees
08f341fcc9 Catch-up merge from master sources @186540 to branch/2014-05-17/chunk-tree. 
Copied from Perforce
 Change: 186546
 ServerID: perforce.ravenbrook.com
 2014-06-12 17:55:16 +01:00
Gareth Rees
bfb0b771dd Rename "arena alignment" to "arena grain size" to avoid confusion with ordinary structure alignment. 
Copied from Perforce
 Change: 186503
 ServerID: perforce.ravenbrook.com
 2014-06-11 17:13:03 +01:00
Gareth Rees
de2a30d207 Catch-up merge from master sources @186481 to branch/2014-05-17/chunk-tree. 
Copied from Perforce
 Change: 186491
 ServerID: perforce.ravenbrook.com
 2014-06-11 13:52:31 +01:00
Gareth Rees
5969ae2114 Catch-up merge from branch/2014-04-15/mvffnoseg @186485 to branch/2014-05-15/size. 
Copied from Perforce
 Change: 186487
 ServerID: perforce.ravenbrook.com
 2014-06-11 13:17:14 +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
2f0ef9355d Clarify tracefix logic by unwinding the nested conditions. 
Change the arena's chunk tree from a splay tree to an ordinary tree (so that it's not possible to accidentally splay it and leave it unbalanced).
New function TreeFindNext allows us to implement TractFirst and TractNext without having to splay the tree.
Make sure all operations on the chunk tree leave it balanced. But don't balance the tree directly in ChunkFinish() because this is only ever called in a loop where multiple chunks are being deleted from the tre. Instead use the sequence TreeToVine -- iterate and delete -- TreeBalance. The new macro TREE_DESTROY assists with this.
No need any more for ArenaIsReservedAddr, CHUNK_OF_ADDR, TRACT_OF_ADDR.
Update design documentation.

Copied from Perforce
 Change: 186212
 ServerID: perforce.ravenbrook.com
 2014-05-20 18:12:37 +01:00
Gareth Rees
0b0a465674 Replace the chunk ring with a chunk tree. 
Fix bug in SplayFindNext (LESS and GREATER the wrong way round).

Copied from Perforce
 Change: 186157
 ServerID: perforce.ravenbrook.com
 2014-05-17 17:05:42 +01:00
Gareth Rees
981a266642 New public functions mps_pool_total_size and mps_pool_free_size. 
Old (undocumented) functions mps_{mv,mvff,mvt}_size and mps_{mv,mvff,mvt}_free_size are now macros for the new public functions.
New pool methods PoolTotalSize and PoolFreeSize, with implementations for public pool classes except SNC.
Coverage of the new functions in apss and mpmss for the manual pool classes, and in finaltest for the automatic pool classes.

Copied from Perforce
 Change: 186118
 ServerID: perforce.ravenbrook.com
 2014-05-15 17:01:59 +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
4deafee125 Lands maintain the total size of the address ranges they maintain. (this avoids the need to do free size accounting in mvff.) 
Copied from Perforce
 Change: 185567
 ServerID: perforce.ravenbrook.com
 2014-04-15 14:23:53 +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
93a79ac8a6 Add -wconversion to the options for gcc. ensure that the mps builds. 
Copied from Perforce
 Change: 185463
 ServerID: perforce.ravenbrook.com
 2014-04-11 14:25:15 +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
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
061eba523c Reponding to code review <https://info.ravenbrook.com/mail/2014/03/10/17-01-58/0/>. 
Renaming the arena’s “zoned CBS” back to earlier “free CBS”, especially since it might not be zoned.

Copied from Perforce
 Change: 184738
 ServerID: perforce.ravenbrook.com
 2014-03-11 17:27:57 +00:00