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Author SHA1 Message Date
Richard Brooksby
4487895475 Detabifying code and restructuredtext files. 
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 Change: 189309
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 2016-02-18 19:58:13 +00:00
Richard Brooksby
2dbb15a869 Fixing uninitialised variable warning from gcc 5.2.1. 
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 Change: 189069
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 2016-01-30 19:58:10 +00:00
Gareth Rees
84347b9bbe Merge branch/2014-09-29/reserved into the master sources. 
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 Change: 188090
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 2015-08-07 16:33:43 +01:00
Gareth Rees
e2d03a9b0e Vmarenagrow now passes on the result code from vmchunkcreate, instead of substituting resresource under the circumstances described in job003899. 
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 Change: 187489
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 2014-11-07 14:04:35 +00:00
Gareth Rees
2dc79898eb Check that sparsearraymap makes some (or no) progress. 
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 Change: 187465
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 2014-11-06 10:56:45 +00:00
Gareth Rees
e2e51376f9 Assert that sparsearrayunmap made some (or no) progress. 
Copied from Perforce
 Change: 187464
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 2014-11-06 10:51:18 +00:00
Gareth Rees
00aeff2d49 Call the "contracted" callback before destroying the chunk, as the arena is (briefly) invalid afterwards. 
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 Change: 187294
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 2014-10-20 16:40:32 +01:00
Gareth Rees
f7f4e4a7f0 If you try to create a client arena that's too small for the full complement of zones, return mps_res_memory instead of asserting. 
If you try to create a virtual memory arena that's too small for the full complement of zones, round up the size to the minimum instead of asserting.

Copied from Perforce
 Change: 187164
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 2014-10-08 22:16:56 +01:00
Gareth Rees
943471d015 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
22aa2a0841 Account for the reserved memory in the arena's own vm. (this was previously not included in arenareserved.) 
Make the computation in pageDescUnmap clearer (and not relying on arithmetic overflow).

Copied from Perforce
 Change: 187091
 ServerID: perforce.ravenbrook.com
 2014-09-30 11:02:11 +01:00
Gareth Rees
9436487a05 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
a8d9fcc694 Design.mps.ring.naming: "when one structure parent contains one ring of child structures, the field in parent is usually known as childring, and the field in child is known as parentring". so the field in chunkstruct should be named arenaring. 
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 Change: 187084
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 2014-09-29 20:54:00 +01:00
Gareth Rees
2d0f425428 Ensure that code of the form if (condition) statement; is split over two lines, so that it is possible to set a breakpoint on the statement in a debugger. 
This change was agreed in 1997 (see <https://info.ravenbrook.com/project/mps/mail/1997/08/19/13-44/0.txt>), so it's about time it was implemented.

Copied from Perforce
 Change: 187071
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 2014-09-27 22:57:02 +01:00
Gareth Rees
456d747b61 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.

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 Change: 187061
 ServerID: perforce.ravenbrook.com
 2014-09-27 11:27:00 +01:00
Gareth Rees
c66d260ec1 Don't return resparam from mps_arena_vm_growth if desired < minimum: this is a static programming error (not a dynamic condition) so aver instead. 
Copied from Perforce
 Change: 187057
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 2014-09-26 21:55:05 +01:00
Gareth Rees
61a58b9b50 Fix problems noted by rb in review <https://info.ravenbrook.com/mail/2014/06/18/14-06-43/0/> 
Copied from Perforce
 Change: 186667
 ServerID: perforce.ravenbrook.com
 2014-06-18 15:36:35 +01:00
Gareth Rees
ef7bb2c997 Catch-up merge from branch/2014-05-28/align to branch/2014-06-14/vm. 
Copied from Perforce
 Change: 186664
 ServerID: perforce.ravenbrook.com
 2014-06-17 15:52:16 +01:00
Gareth Rees
5fb05e31b6 Fix problems noted by dl in review <https://info.ravenbrook.com/mail/2014/06/17/13-35-38/0/>. 
Copied from Perforce
 Change: 186662
 ServerID: perforce.ravenbrook.com
 2014-06-17 15:15:32 +01:00
Gareth Rees
e95af3fb0e Store the vm descriptor in the vmarena and vmchunk structures. 
Copied from Perforce
 Change: 186624
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 2014-06-14 15:12:26 +01:00
Gareth Rees
8d9b6c0884 Improve the diff and make the vm implementations more closely parallel. 
Copied from Perforce
 Change: 186591
 ServerID: perforce.ravenbrook.com
 2014-06-13 17:59:37 +01:00
Gareth Rees
f39706c2be Now that we can call vmpagesize without having a vm to hand, the implementation of vmcreate can be simpler: in particular, the grain size can already be correctly rounded up. 
Copied from Perforce
 Change: 186590
 ServerID: perforce.ravenbrook.com
 2014-06-13 17:39:58 +01:00
Gareth Rees
8c3e5886b4 Vmpagesize now takes no arguments -- this avoids suggesting (incorrectly) that it might return a different value for each vm. 
New function ProtGranularity returns the protection granularity of the operating system. (On all currently supported operating systems this is the same as the granularity of memory mapping returned by VMPageSuze, but it's important to separate these concepts.) MPMCheck asserts that the granularity of memory mapping is a multiple of the granularity of protection.
Client arena supports MPS_KEY_ARENA_GRAIN_SIZE.
Some of the test cases set the arena grain size.

Copied from Perforce
 Change: 186588
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 2014-06-13 17:19:23 +01:00
Gareth Rees
8acd14d9dd Configurable grain size for client arenas. 
Copied from Perforce
 Change: 186579
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 2014-06-13 16:24:55 +01:00
Gareth Rees
76b164e48c Catch-up merge from master sources @186573 to branch/2014-05-28/align. 
Copied from Perforce
 Change: 186574
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 2014-06-13 15:37:20 +01:00
Gareth Rees
bf97a59af1 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
72c680ccce User size should be aligned up to the platform alignment (for convenience). 
Add test cases.

Copied from Perforce
 Change: 186571
 ServerID: perforce.ravenbrook.com
 2014-06-13 15:18:28 +01:00
Gareth Rees
66f3338574 Catch-up merge from master sources @186554 to branch/2014-05-17/chunk-tree. 
Copied from Perforce
 Change: 186563
 ServerID: perforce.ravenbrook.com
 2014-06-13 14:25:09 +01:00
Gareth Rees
cd291a5f7a Merge branch/2014-06-11/grain into branch/2014-05-28/align. 
Copied from Perforce
 Change: 186561
 ServerID: perforce.ravenbrook.com
 2014-06-13 13:35:14 +01:00
Gareth Rees
a6c1da3a83 Restore the chunk ring. 
Copied from Perforce
 Change: 186558
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 2014-06-13 12:31:47 +01:00
Gareth Rees
2fa5f5688d New function arenachunktreetraverse ensures that calls to chunkofaddr are reliably detected. 
Copied from Perforce
 Change: 186550
 ServerID: perforce.ravenbrook.com
 2014-06-12 20:28:50 +01:00
Gareth Rees
9aa93127ba Remove obsolete macro arenachunkring. 
Copied from Perforce
 Change: 186549
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 2014-06-12 19:52:43 +01:00
Gareth Rees
b0d20ed749 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
3aabbcfa48 Rename vmgrainsize to vmpagesize (because it is in fact the operating system page size) and to avoid confusion with the arena grain size. 
Copied from Perforce
 Change: 186543
 ServerID: perforce.ravenbrook.com
 2014-06-12 17:18:50 +01:00
Gareth Rees
41e2d84377 Rename "arena alignment" to "arena grain size" to avoid confusion with ordinary structure alignment. 
Copied from Perforce
 Change: 186503
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 2014-06-11 17:13:03 +01:00
Gareth Rees
a6ea56c348 Use unused_pointer and unused_size now we have 'em. 
Copied from Perforce
 Change: 186492
 ServerID: perforce.ravenbrook.com
 2014-06-11 13:59:02 +01:00
Gareth Rees
ebfb9af464 Fix problems identified by rb in review <https://info.ravenbrook.com/mail/2014/06/05/14-58-24/0/>. 
Copied from Perforce
 Change: 186451
 ServerID: perforce.ravenbrook.com
 2014-06-08 22:10:21 +01:00
Gareth Rees
4a59d4e9b7 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
1e773a75fe Tree_traverse_and_delete is a better name than tree_destroy. 
Generalize this macro so it can be used in all three cases.

Copied from Perforce
 Change: 186228
 ServerID: perforce.ravenbrook.com
 2014-05-21 11:38:59 +01:00
Gareth Rees
f5e11efb38 Improvements following review. 
Copied from Perforce
 Change: 186227
 ServerID: perforce.ravenbrook.com
 2014-05-21 00:43:06 +01:00
Gareth Rees
5f84d4c3db 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
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 2014-05-20 18:12:37 +01:00
Gareth Rees
d947fe9ff5 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
2b41ec58db Catch-up merge from master sources @185999 to branch/2014-04-17/describe. 
Copied from Perforce
 Change: 186003
 ServerID: perforce.ravenbrook.com
 2014-05-11 18:33:02 +01:00
Gareth Rees
add3e4bf93 Consistent order stream, depth. 
Copied from Perforce
 Change: 186001
 ServerID: perforce.ravenbrook.com
 2014-05-11 18:30:23 +01:00
Gareth Rees
c44f2d6a20 Correct indentation of describe output by passing depth parameter to describe functions and to writef. 
Call Describe functions from test cases so that we get coverage.

Copied from Perforce
 Change: 186000
 ServerID: perforce.ravenbrook.com
 2014-05-11 18:20:38 +01:00
Gareth Rees
4ed8190265 Back out change 185626 (violates the design.mps.writef.snazzy). 
Copied from Perforce
 Change: 185941
 ServerID: perforce.ravenbrook.com
 2014-05-02 12:44:31 +01:00
Gareth Rees
4c655eba6a 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
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 2014-05-01 12:18:00 +01:00
Gareth Rees
d83fbf6b09 Correct indentation of describe output. 
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 Change: 185626
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 2014-04-17 13:36:42 +01:00
Gareth Rees
8624638093 Default value for mps_key_arena_size makes it easier to create arenas. 
Copied from Perforce
 Change: 185472
 ServerID: perforce.ravenbrook.com
 2014-04-11 21:15:09 +01:00
Gareth Rees
b70e268929 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
bcea6812fc 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
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 2014-04-06 22:51:05 +01:00