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Author SHA1 Message Date
Gareth Rees
51e39dc087 Pass and check special closure values unused_pointer, unused_size instead of null, 0. 
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 Change: 186352
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 2014-05-29 15:28:33 +01:00
Gareth Rees
946a50691d Catch-up merge from master sources @186335 to branch/2014-03-30/addrset. 
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 Change: 186348
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 2014-05-29 14:58:50 +01:00
Gareth Rees
fd57486106 Fix problems identified by dl in review <https://info.ravenbrook.com/mail/2014/05/23/12-44-54/0/>. 
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 Change: 186300
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 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. 
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 Change: 186298
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 2014-05-25 19:26:48 +01:00
Gareth Rees
64f59a3797 Ignore or use the result of landiterate. 
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 Change: 186166
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 2014-05-18 22:50:22 +01:00
Gareth Rees
4638be32ad Remove unused macros ("unless" and "when"). 
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 Change: 186120
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 2014-05-15 17:35:27 +01:00
Gareth Rees
34cc9d49e4 Catch-up merge from master sources @186077 to branch/2014-03-30/addrset. 
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 Change: 186081
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 2014-05-13 16:21:39 +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. 
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 Change: 185915
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 2014-05-01 12:18:00 +01:00
Gareth Rees
42f18f93af Catch-up merge from master/...@185556 to branch/2014-03-30/addrset. 
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 Change: 185563
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 2014-04-15 13:14:50 +01:00
Gareth Rees
c376a2b808 Mvt does not actually need to use gcsegs: in fact, gcsegs create difficulties because buffers need to be detached. so switch to using ordinary segs just like mvff. 
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 Change: 185556
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 2014-04-15 12:41:10 +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. 
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 Change: 185445
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 2014-04-11 00:26:48 +01:00
Gareth Rees
262bb324f3 No keyword arguments needed in these cbsfastlandclass initializations. 
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 Change: 185329
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 2014-04-08 00:13:50 +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.

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 Change: 185294
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 2014-04-07 15:36:18 +01:00
Gareth Rees
4b5d396792 Catch-up merge from master sources to branch/2014-03-30/addrset. 
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 Change: 185288
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 2014-04-07 15:02:09 +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).

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 Change: 185263
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 2014-04-06 22:51:05 +01:00
Gareth Rees
673eea41a0 Check classes after defining them. 
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 Change: 185228
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 2014-04-04 12:51:07 +01:00
Gareth Rees
86a50c3d1c Fix file-at-a-time compilation. 
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 Change: 185210
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 2014-04-03 15:01:53 +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
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 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
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 2014-04-03 12:52:23 +01:00
Gareth Rees
b409ae89f6 Turn freelist into a land class. 
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 Change: 185155
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 2014-04-02 14:01:18 +01:00
Gareth Rees
5314260bc8 Avoid type puns. 
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 Change: 185151
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 2014-04-02 12:16:38 +01:00
Gareth Rees
1d8238419a Landiargs -> liargs for terseness and consistency. 
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 Change: 185147
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 2014-04-01 23:39:03 +01:00
Gareth Rees
d2cbfda452 First pass at implementation of lands (collections of address ranges). 100% boilerplate! 
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 Change: 185131
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 2014-04-01 19:51:55 +01:00
Gareth Rees
9aef4157fd Fix review comments from dl <https://info.ravenbrook.com/mail/2014/03/25/17-44-56/0/>. 
Add __attribute__((__format__(printf))) to functions that take a printf-compatible format string (when building using GCC or Clang), so that format string mistakes can be detected statically.

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 Change: 185021
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 2014-03-26 12:27:35 +00:00
Gareth Rees
9d5266c0cc Improved support for pelles c: 
* Refactor nmake files so that a compiler-specific makefile is included; move Microsoft Visual C-specific options to mv.nmk.
* Add nmake files for Pelles (w3i3pc.nmk and pc.nmk).
* Rename spw3i3mv.c to spw3i3.c and spw3i6mv.c to spw3i6.c since these are also used by Pelles C.
* Make reasonable changes to the source code to avoid warnings from Pelles C:
** check results of function calls;
** avoid useless return values;
** undef max before defining it;
** ensure printf formats are checkable;
** move notreached() assertions to the end of blocks;
** suppress warnings in cases where the code shouldn't be changed ("Unreachable code", "Inline assembly code is not portable", "Structured Exception Handling is not portable").

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 Change: 184977
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 2014-03-24 18:23:29 +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
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 2014-02-28 10:30:32 +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 
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 Change: 184587
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 2014-02-28 00:35:05 +00:00
Richard Brooksby
f9051f09f6 Catch-up merge from master, mainly to pick up gcbench fixes. 
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 Change: 184504
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 2014-02-25 01:29:12 +00:00
Richard Brooksby
005a9d56da Detaching buffers from segments before freeing them in mvt. 
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 Change: 184389
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 2014-02-19 13:58:37 +00:00
Richard Brooksby
2151d00c7f Catch-up merge from master, mainly to pick up spare-ring merge. 
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 Change: 184365
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 2014-02-18 13:47:49 +00:00
Richard Brooksby
e6ff3a648f Merging branch //info.ravenbrook.com/project/mps/branch/2014-01-29/mps-chain-zones/... into master. 
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 Change: 184342
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 2014-02-14 15:15:07 +00:00
Richard Brooksby
252383465b Abolishing vmarenaalloc and its horrible relatives. 
Removing redundant SegPref structures from pools that only ever used the default.
Abolishing the VMNZ arena class, to be replaced with an option to ArenaCreate.

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 Change: 184293
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 2014-02-04 18:10:53 +00:00
Richard Brooksby
34f5aece3d Clarifying a comment. 
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 Change: 184262
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 2014-01-31 13:50:16 +00:00
Richard Brooksby
7a73e98638 Refactored implementation of preferenced allocation policy from vm arena to general purpose arena. 
Eliminating SegPrefExpress in most places, especially where there wasn’t really any preference.
Eliminating special case knowledge about garbage collection from the arena.

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 Change: 184279
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 2014-01-30 18:08:10 +00:00
Richard Brooksby
8e4e0f066e Eliminating dodgy use of *segprefdefault() which could lead to implicit calls to memcpy. 
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 Change: 184217
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 2014-01-29 15:13:22 +00:00
Gareth Rees
d917eb1d0c Merge branch/2013-05-17/emergency into the master sources. 
This change refactors MVTBufferFill and makes related improvements to improve the clarity of the code.

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 Change: 183935
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 2014-01-10 18:52:08 +00:00
Gareth Rees
b14f5a51d7 Make improvements (mostly to comments) based on reviews: 
https://info.ravenbrook.com/mail/2014/01/10/15-57-50/0/
https://info.ravenbrook.com/mail/2014/01/10/15-40-47/0/

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 Change: 183932
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 2014-01-10 18:18:06 +00:00
Gareth Rees
b87ce7680f Don't call mvtsegfree from mvtfinish: we don't know whether or not there was any fragmented (unavailable) space in this segment, and so we can't keep the accounting correct. add assertion in mvtsegfree that detects incorrect accounting. 
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 Change: 183610
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 2013-10-30 13:15:09 +00:00
Richard Brooksby
01394a89ae Rewriting mvtbufferfill to separate out its various attempts to allocate memory and clarify their relationships. mvtbufferfill itself now clearly spells out the methods it applies and its fallbacks. this reveals quite a few questions which i have noted with fixmes and todos. 
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 Change: 182642
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 2013-06-08 18:38:03 +01:00
Gareth Rees
1d594d8c6d Mvtfinish must make the structure invalid first. 
Add comment explaining choice of GCSegClass.

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 Change: 182608
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 2013-06-07 15:39:07 +01:00
Gareth Rees
da3afade7b Mvt takes configurable alignment via a keyword argument. 
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 Change: 182605
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 2013-06-07 14:45:14 +01:00
Gareth Rees
e6605cc39c Tidying up in anticipation of review. 
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 Change: 182524
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 2013-06-04 23:49:48 +01:00
Gareth Rees
3cd8c3964f Avoid "variable may be used uninitialized" warning from visual c. 
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 Change: 182517
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 2013-06-04 20:41:19 +01:00
Gareth Rees
d6912235bd Mvt now fails over from a cbs to a freelist. 
Update test cases and design accordingly.

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 Change: 182509
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 2013-06-04 18:16:32 +01:00
Gareth Rees
2bda69bc6b New test case "fotest" for fail-over of cbs to freelist in mvff. (plus stub for mvt.) need some testing hooks in mvff and mvt for getting the cbs. 
This reveals a couple of bugs in MVFF: (i) if CBSDelete fails, this might be because the block is actually on the Freelist instead; (ii) we can't SegFree before calling FreelistDelete because the Freelist needs access to the memory in order to read its pointers.

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 Change: 182500
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 2013-06-04 16:51:24 +01:00
Gareth Rees
db9328da7a Use range objects in the cbs interface instead of base, limit pairs. the idea is that freelist and cbs should offer similar interfaces so that the testing code can be shared. 
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 Change: 182364
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 2013-05-31 16:29:26 +01:00
Gareth Rees
934ae05ca3 Rename the enumeration cbsfinddelete to finddelete in anticipation of it being shared between cbs and new freelist module. 
Since ABQDisposition enumeration only has two values, it's better to use Bool.

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 Change: 182347
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 2013-05-31 00:09:33 +01:00
Gareth Rees
87019f4ee2 Fix review comments from <https://info.ravenbrook.com/mail/2013/05/28/22-21-11/0/>: 
* Rename RangeOverlap to RangesOverlap.
* MVFF shouldn't assume that CBSInsert and CBSDelete can't fail.
* Remove unused function mps_mvff_stat.
* Don't call range methods in RangeCheck.
* RangeInit can't fail, so return void.

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 Change: 182297
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 2013-05-29 12:19:19 +01:00
Gareth Rees
4c5bca4bd0 Fix review comments from rb in <https://info.ravenbrook.com/mail/2013/05/23/18-17-17/0/> 
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 Change: 182149
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 2013-05-24 00:48:19 +01:00
Gareth Rees
964fe2954e The abq module manages objects internal to the mps (not client objects) so it should use the type void * in its interface, not addr. 
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 Change: 182051
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 2013-05-21 18:39:51 +01:00