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2469 commits

Author SHA1 Message Date
Gareth Rees
6cda91e1ee Keep forward declarations for seg methods together. 
Copied from Perforce
 Change: 193842
 2018-06-15 14:55:40 +01:00
Gareth Rees
de94fe2aa3 Catch-up merge from master sources at change 193831 to branch/2017-03-04/seg-methods. 
Copied from Perforce
 Change: 193836
 2018-06-15 13:46:23 +01:00
Gareth Rees
f5ffaeb349 Mach_thread_self() can in theory "return mach_port_null if a resource shortage prevented the reception of the send right" so add a check in each case. (there's nothing we can do about it but at least we can notice.) 
Copied from Perforce
 Change: 193831
 2018-06-15 12:54:28 +01:00
Gareth Rees
e9d454d796 It's safe to register a thread multiple times on macos, so there is no need for the guard. 
Copied from Perforce
 Change: 193828
 2018-06-15 12:44:51 +01:00
Gareth Rees
307bc47730 Rename "mac os x" and "os x" to "macos", except for a few cases where for historical accuracy we want to continue to refer to the former name. 
Copied from Perforce
 Change: 193821
 2018-06-15 12:15:36 +01:00
Gareth Rees
81874fdf08 Fix typo. 
Copied from Perforce
 Change: 193811
 2018-06-15 11:15:42 +01:00
Gareth Rees
b0a73a5c71 Refactor atfork code to improve separation of concerns. 
Copied from Perforce
 Change: 193806
 2018-06-15 10:58:33 +01:00
Gareth Rees
4eeac719ad Start the collection and dereference the objects in the parent as well as the child. 
Copied from Perforce
 Change: 193800
 2018-06-15 10:06:59 +01:00
Gareth Rees
ad432cf7c4 Fix issues identified in review by nb. 
Copied from Perforce
 Change: 193793
 2018-06-14 19:31:30 +01:00
Gareth Rees
b1ac192a9a Update design history. restore accidentally removed check. 
Copied from Perforce
 Change: 193787
 2018-06-14 17:55:03 +01:00
Gareth Rees
6fda834973 Improve comments. 
Copied from Perforce
 Change: 193783
 2018-06-14 17:44:41 +01:00
Gareth Rees
612b44060f Fix ansi build. 
Copied from Perforce
 Change: 193769
 2018-06-14 16:58:24 +01:00
Gareth Rees
b5e1965b3d Avoid compilation errors from latest msvc. 
Copied from Perforce
 Change: 193768
 2018-06-14 16:54:33 +01:00
Gareth Rees
f92f645f63 Support for fork on linux and freebsd. 
Copied from Perforce
 Change: 193765
 2018-06-14 16:47:23 +01:00
Gareth Rees
e70b4c273c Take locks before fork(), release them in the parent and reinitialize them in the child. 
Add forktest target to the Xcode project.
Write design for fork safety and cross-reference from the code.
Update release notes.

Copied from Perforce
 Change: 193760
 2018-06-14 16:25:08 +01:00
Gareth Rees
2401957e62 Extend forktest so that it does allocation before the fork and collection afterwards; this ensures that we hit the read barrier and thus exercise the exception handling. 
After forking in the child, re-create exception port and exception thread, and re-register the (only) thread with that port.

Copied from Perforce
 Change: 193755
 2018-06-14 12:54:35 +01:00
Gareth Rees
8146970622 Add fork test case (fails on os x if pthread_atfork is not called). 
pthread_atfork handlers on OS X: in the child, update the mach port for the forking thread and move all other threads to the dead ring.

Copied from Perforce
 Change: 193746
 2018-06-13 17:09:07 +01:00
Gareth Rees
9de5c1dfbe Avoid using deprecated function mps_fix and deprecated macro mps_fix in the test cases; use mps_fix12 instead. 
Copied from Perforce
 Change: 193726
 2018-06-13 13:59:14 +01:00
Gareth Rees
52d6325133 New pool method poolsegpoolgen gets the pool generation for a segment. (this allows the segment whiten and reclaim methods not to need to know the pool class.) 
Copied from Perforce
 Change: 193084
 ServerID: perforce.ravenbrook.com
 2017-03-31 13:28:25 +01:00
Gareth Rees
2a24ad79df Since we know that a segment belongs to a pool with a format at the point where we call segwalk, it makes sense to pass the format. 
Copied from Perforce
 Change: 193079
 ServerID: perforce.ravenbrook.com
 2017-03-31 09:15:41 +01:00
Gareth Rees
e615adda88 Avoid "result of 32-bit shift implicitly converted to 64 bits" warning from visual c. 
Check AWL pool generation.
Update design.

Copied from Perforce
 Change: 193076
 ServerID: perforce.ravenbrook.com
 2017-03-31 09:03:38 +01:00
Gareth Rees
a697ef913f Move alignshift to pool structure allows us to eliminate duplicate code between awl and lo. 
Copied from Perforce
 Change: 193071
 ServerID: perforce.ravenbrook.com
 2017-03-31 08:41:14 +01:00
Gareth Rees
49ba7045fc Only walk segments belonging to pools with an object format. 
Copied from Perforce
 Change: 193066
 ServerID: perforce.ravenbrook.com
 2017-03-31 08:05:59 +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
fd9cb83ec5 Avoid "format may be used uninitialized" warning. 
Copied from Perforce
 Change: 193050
 ServerID: perforce.ravenbrook.com
 2017-03-30 10:42:40 +01:00
Gareth Rees
79c2263d53 No need for poolclassmixinscan and abstractscanpool. 
Copied from Perforce
 Change: 193045
 ServerID: perforce.ravenbrook.com
 2017-03-30 10:23:15 +01:00
Gareth Rees
d4a68602ff Changing segnowalk to segtrivwalk avoids the need for attrfmt (now we can walk all segments). 
Copied from Perforce
 Change: 193044
 ServerID: perforce.ravenbrook.com
 2017-03-30 10:18:22 +01:00
Gareth Rees
2ffd832103 Move access method from pool class to segment class. 
Copied from Perforce
 Change: 193039
 ServerID: perforce.ravenbrook.com
 2017-03-30 09:55:37 +01:00
Gareth Rees
8ab47f84d1 Remove unused variable pool. 
Copied from Perforce
 Change: 193034
 ServerID: perforce.ravenbrook.com
 2017-03-30 09:19:54 +01:00
Gareth Rees
a400239f7e Move walk method from pool class to segment class. 
Copied from Perforce
 Change: 193028
 ServerID: perforce.ravenbrook.com
 2017-03-30 08:54:35 +01:00
Gareth Rees
b7a490ae32 Move fix and fixemergency methods from pool class to segment class. 
Copied from Perforce
 Change: 193023
 ServerID: perforce.ravenbrook.com
 2017-03-30 08:09:14 +01:00
Gareth Rees
9734df3505 Remove unused fixclosure field from trace and scanstate structures. 
Copied from Perforce
 Change: 193018
 ServerID: perforce.ravenbrook.com
 2017-03-30 07:14:10 +01:00
Gareth Rees
00a4ade456 Move scan method from pool class to segment class. 
Copied from Perforce
 Change: 193012
 ServerID: perforce.ravenbrook.com
 2017-03-29 19:17:17 +01:00
Gareth Rees
db5db0a9f3 Move reclaim method from pool class to segment class. 
Copied from Perforce
 Change: 193007
 ServerID: perforce.ravenbrook.com
 2017-03-29 17:13:45 +01:00
Gareth Rees
07adf64ebb Move whiten method from pool class to segment class. 
Copied from Perforce
 Change: 193002
 ServerID: perforce.ravenbrook.com
 2017-03-29 16:22:14 +01:00
Gareth Rees
47a1715c2d Move greyen method from pool class to segment class. 
Copied from Perforce
 Change: 192997
 ServerID: perforce.ravenbrook.com
 2017-03-29 15:58:32 +01:00
Gareth Rees
1dc5ac742a Move the blacken method from the pool class to the segment class. 
Copied from Perforce
 Change: 192994
 ServerID: perforce.ravenbrook.com
 2017-03-29 15:32:17 +01:00
Gareth Rees
7c159fd2f8 Remove undocumented plinth function mps_lib_assert_fail_expr and rewrite assertp macro to call documented plinth function mps_lib_assert_fail instead. 
Copied from Perforce
 Change: 192941
 ServerID: perforce.ravenbrook.com
 2017-03-04 11:17:11 +00:00
Gareth Rees
f6356fc2ef Remove used epvmdefaultsubsequentsegsize. 
Copied from Perforce
 Change: 192938
 ServerID: perforce.ravenbrook.com
 2017-03-04 11:02:31 +00:00
Gareth Rees
38dae4d616 Documentation improvements. 
Copied from Perforce
 Change: 192905
 ServerID: perforce.ravenbrook.com
 2017-02-18 09:38:15 +00:00
Gareth Rees
1c5e8269a8 Fix typos. 
Copied from Perforce
 Change: 192890
 ServerID: perforce.ravenbrook.com
 2017-02-11 11:30:15 +00:00
Gareth Rees
cb23106273 Add "cold end" and "hot end" to the glossary index. 
Copied from Perforce
 Change: 192660
 ServerID: perforce.ravenbrook.com
 2016-10-20 13:52:30 +01:00
Gareth Rees
148f538510 Merge design.mps.class-interface into design.mps.pool (as suggested by pekka p. pirinen on 1999-07-20). 
Bring pool class method descriptions up to date.
Document bufferClass, bufferFill, bufferEmpty, totalSize, freeSize methods.
Document generic instance methods at design.mps.protocol.method.

Copied from Perforce
 Change: 192642
 ServerID: perforce.ravenbrook.com
 2016-10-19 15:34:35 +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
587a3efb20 Remove unused pool class methods tracebegin and traceend. 
Remove unused event AMCTraceEnd.
The fixEmergency method must have the same type as the fix method because of how they are used.

Copied from Perforce
 Change: 192636
 ServerID: perforce.ravenbrook.com
 2016-10-19 14:07:20 +01:00
Gareth Rees
7f18fa9802 Use nextmethod to call the superclass init method, instead of calling poolabsinit directly. regularize the error handling. 
Copied from Perforce
 Change: 192631
 ServerID: perforce.ravenbrook.com
 2016-10-19 11:34:04 +01:00
Gareth Rees
4a5bfd071a Bring design.mps.message up to date and move it from old to current. 
Copied from Perforce
 Change: 192625
 ServerID: perforce.ravenbrook.com
 2016-10-18 22:35:13 +01:00
Gareth Rees
1b6774b850 Regularize the signature comments, for the benefit of design.mps.sig.test.uniq. 
Copied from Perforce
 Change: 192620
 ServerID: perforce.ravenbrook.com
 2016-10-18 18:30:50 +01:00
Gareth Rees
c5869484e5 Remove design documents for unsupported operating systems sunos, solaris and osf/1 (protsu, sso1al, vmo1, and vmso). 
Update thread-safety and version-library design documents and move them from old to current.

Copied from Perforce
 Change: 192617
 ServerID: perforce.ravenbrook.com
 2016-10-18 18:30:09 +01:00