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326 Commits

Author SHA1 Message Date
Roberto Ierusalimschy d2ea5b00b7 new function 'luaC_changemode' + 
bug: objects entering the 'allgc' list must have their OLDBIT cleared
(upvalues being cleared) + bug: in 'checkSizes', KGC_EMERGENCY is
stored in 'gckind' field, not in 'gcstate' + current white changes when
entering sweep phase (so there are dead objects only in that phase)
 2010-05-05 15:58:36 -03:00
Roberto Ierusalimschy 7444b5a1d5 better documentation of GC costs 2010-05-05 10:39:58 -03:00
Roberto Ierusalimschy 3e662cec89 full GC must run finalizers only after finishing everything else 
(including a return to generational mode if needed)
 2010-05-04 15:09:06 -03:00
Roberto Ierusalimschy aa73403ba4 no need of a KGC_FORCED collection kind; it has the same behavior of 
a normal collection
 2010-05-03 14:39:48 -03:00
Roberto Ierusalimschy 0c27de2e7b no more 'finalize' phase in GC; finalizers are called along the 
entire cycle
 2010-05-03 14:33:39 -03:00
Roberto Ierusalimschy d25f7f9d78 items in 'tobefnz' are kept black (as before recent change) and changed 
to white only when needed (being moved to 'allgc' when not keeping
invariant).
 2010-05-03 08:55:40 -03:00
Roberto Ierusalimschy 4d871ee973 "gray lists" only need to be valid when 'keepinvariant' is true 2010-04-30 15:37:14 -03:00
Roberto Ierusalimschy 23001d8607 nasty GC bug: upvalue must be turned white when not keeping invariant, 
but barrier was not being called when uv->v were already white.
 2010-04-29 18:43:36 -03:00
Roberto Ierusalimschy aaa5d7adab 'luaC_linkupval' moved into 'lfunc.c' code + new way to control GC speed 2010-04-29 14:32:40 -03:00
Roberto Ierusalimschy 00114a95b2 lots of new comments + small changes in loop controls + other small 
"janitor work"
 2010-04-26 14:58:00 -03:00
Roberto Ierusalimschy 4aaf0ef75c "to-be-finalized" objects marked and sweeped like all other objects 2010-04-20 17:15:30 -03:00
Roberto Ierusalimschy d20ff60615 new macro LUA_NUMTAGS 2010-04-12 13:07:29 -03:00
Roberto Ierusalimschy a09c8d7beb cannot sweep main thread in sweepstring phase 2010-04-05 11:15:35 -03:00
Roberto Ierusalimschy e54668b696 added proper code to trace garbage collection 2010-04-02 11:37:41 -03:00
Roberto Ierusalimschy a8d3aa14fd global table now is only kept in the registry 2010-03-29 14:43:14 -03:00
Roberto Ierusalimschy 064e406f67 no more fenvs! 2010-03-26 17:58:11 -03:00
Roberto Ierusalimschy 5c87f61e6b major collections in generational mode 2010-03-25 16:37:23 -03:00
Roberto Ierusalimschy 3aa9598177 'mainthread' is not inserted in the 'allgc' list anymore, but swept 
separately.
 2010-03-25 10:06:36 -03:00
Roberto Ierusalimschy 64d39ed1b6 generational mode no longer sweep old objects 2010-03-24 12:51:10 -03:00
Roberto Ierusalimschy 4433dbb5f5 userdata with finalizers are kept in a separated list ('udgc'), instead 
of at the end of 'rootgc' (which was renamed to 'allgc', as it is not
"root" in the usual meaning for collectors)
 2010-03-24 10:07:01 -03:00
Roberto Ierusalimschy 5cb128ea54 BUG: emergency collector might resize 'strt' (string table) when 
creating a new string
+ atomic and markroot steps has some cost
+ full collection must leave collector in proper state when mode
is generational
 2010-03-23 17:16:06 -03:00
Roberto Ierusalimschy 74123e9686 draft version of a generational mode for garbage collection. (Not well 
tested; no major collections; ...)
 2010-03-22 15:28:03 -03:00
Roberto Ierusalimschy f84b575cfa no more pseudoindex LUA_GLOBALSINDEX; global table now accessible 
through registry
 2009-12-22 13:32:50 -02:00
Roberto Ierusalimschy 0bbdddc86b allocator function receives the tag of object being allocated in 'osize' 
when 'ptr' is NULL.
 2009-12-17 13:46:44 -02:00
Roberto Ierusalimschy 8da245bfd2 better to keep GC state numbers sequential, to optimize switch in 
'singlestep'
 2009-12-11 19:31:14 -02:00
Roberto Ierusalimschy a2a2abcba4 new function 'luaC_runtilstate' to advance GC until a "valid" state 2009-12-11 17:14:59 -02:00
Roberto Ierusalimschy 3c4d970a7b comment typos 2009-11-26 09:39:20 -02:00
Roberto Ierusalimschy ce444bff33 (huge) simplification of GC management 2009-11-18 11:13:47 -02:00
Roberto Ierusalimschy 88eb901f81 registry and global table may be changed through the API without a 
write barrier, so GC should visit them in the atomic phase.
 2009-11-09 16:29:21 -02:00
Roberto Ierusalimschy a921d81033 avoid using 'ttype' when there is an explicit test + macro 'checkdeadkey' 
to avoid repetitions
 2009-11-06 15:06:19 -02:00
Roberto Ierusalimschy 9756f56354 better control over accesses to TValue fields 2009-11-05 15:43:54 -02:00
Roberto Ierusalimschy 5bc91c6405 no more one environment per thread: all threads share a single global 
environment
 2009-10-23 17:12:19 -02:00
Roberto Ierusalimschy 5938212748 information about upvalues (where they come from) kept in Proto structure, 
instead of sequence of pseudo-opcodes after OP_CLOSURE
 2009-09-28 13:32:50 -03:00
Roberto Ierusalimschy 1829911d7c some operations may shrink g->totalbytes so g->estimate must be 
more flexible
 2009-09-28 10:50:34 -03:00
Roberto Ierusalimschy 55dc7fb240 bug: stack must be cleared until its end (including extra size) + 
control of stack size moved to 'ldo.c'
 2009-07-16 13:26:09 -03:00
Roberto Ierusalimschy 4a67e48611 new macro 'condmovestack' instead of 'condhardstacktests' 2009-06-08 16:35:59 -03:00
Roberto Ierusalimschy 019ebcb85f errors in finalizers are propagated with code LUA_ERRGCMM (ERRor in 
__gc MetaMethod)
 2009-05-21 17:06:11 -03:00
Roberto Ierusalimschy 673c456cba resize string hash table only when new size is smaller than current one 2009-04-29 14:09:41 -03:00
Roberto Ierusalimschy e091a254df new way to GC stacks: the entire stack must be correct all the times; 
the 'dead' part of a stack (after the top) must have only nil's, so
that 'top' may go up without cleaning the stack.
 2009-04-28 16:04:36 -03:00
Roberto Ierusalimschy 4f88418170 'CallInfo' stack implemented as double-linked list instead of an array 2009-04-17 11:28:06 -03:00
Roberto Ierusalimschy ba484b9eb1 yielding across lua_call (first version) 2009-03-10 14:14:37 -03:00
Roberto Ierusalimschy d07abcc6c7 finalizers always called protected 2009-02-17 16:47:58 -03:00
Roberto Ierusalimschy 0c8f5fc2fd simplification in the handling of finalizers: no more 'tmudata' list + 
no more GCSsweeptmu collector's state
 2008-06-26 16:42:45 -03:00
Roberto Ierusalimschy c3525610fe bug: when closing the state, 'luaC_separateudata' might mark 
userdata in the wrong phase of collection, therefore avoiding
their traversal
 2008-06-23 19:07:44 -03:00
Roberto Ierusalimschy 7ba62e2985 code reorganization (only changed comments and order of functions) 2008-06-23 13:51:28 -03:00
Roberto Ierusalimschy e2b366c760 userdata with finalizers are kept in a separated list 2008-02-19 15:55:09 -03:00
Roberto Ierusalimschy 5f0a2f6248 more options for 'kinds' of Garbage Collection + more agressive 
shrinking of stacks and string hash
 2008-02-11 13:46:03 -02:00
Roberto Ierusalimschy 5e8dd55574 first implementation of ephemerons 2007-10-31 13:41:19 -02:00
Roberto Ierusalimschy 0e961ad47a some changes toward ephemerons 2007-10-29 14:51:20 -02:00
Roberto Ierusalimschy a7c9e45c64 avoid trailing white spaces 2006-09-11 11:07:24 -03:00
Roberto Ierusalimschy 3ca9af51a4 emergency garbage collector (core forces a GC when allocation fails) 2006-07-11 12:53:29 -03:00
Roberto Ierusalimschy 0079efc479 bug: collector did not compensate enough for userdata with finalizers 2006-05-24 11:34:06 -03:00
Roberto Ierusalimschy c505f341d6 small changes in casts 2005-12-22 14:19:56 -02:00
Roberto Ierusalimschy 4ff1e5b4e1 details 2005-08-24 14:06:36 -03:00
Roberto Ierusalimschy 680fc88cc2 a small bug 2005-08-04 10:37:38 -03:00
Roberto Ierusalimschy 746a1d612b small bug (type error) 2005-06-07 15:53:45 -03:00
Roberto Ierusalimschy 90de38bf1f warnings in VS .Net 2005-05-31 11:25:18 -03:00
Roberto Ierusalimschy 6cf85dcc90 metatables for all types 2005-05-05 12:34:03 -03:00
Roberto Ierusalimschy 390256edf7 better name for GC pause 2005-03-22 13:04:29 -03:00
Roberto Ierusalimschy 4494094031 detail 2005-03-16 17:02:48 -03:00
Roberto Ierusalimschy 370d31a559 `luac´ -> `luai' (to avoid confusion with other luac stuff) 2005-03-09 13:28:07 -03:00
Roberto Ierusalimschy f8df21bd20 `luaconf.h´ exports all its definitions always (so all of them 
must have a lua/LUA prefix).
 2005-03-08 17:10:05 -03:00
Roberto Ierusalimschy d55bb795fa details 2005-02-23 14:30:22 -03:00
Roberto Ierusalimschy 7d45a5f48f C functions and userdata also have environments 2005-02-18 10:40:02 -02:00
Roberto Ierusalimschy 73d7640244 more secure way to stop GC cycles during finalizers 2005-02-14 11:19:50 -02:00
Roberto Ierusalimschy 678d2fb2ac all collected userdata must go to the end of the list of finalizers 2005-02-11 18:03:35 -02:00
Roberto Ierusalimschy 4df8800a01 cleaner way to free all objects 2005-02-10 11:25:02 -02:00
Roberto Ierusalimschy 334ba8132b cleaner way to remark open upvalues 2005-01-18 15:18:09 -02:00
Roberto Ierusalimschy 5be517602e no more generational collector (and no more `noinc' mode) 2005-01-14 12:19:42 -02:00
Roberto Ierusalimschy e2498e079e change in hash algorithm so that it does not need empty slot 
(tables can be 100% full)
 2005-01-05 16:20:51 -02:00
Roberto Ierusalimschy c6254dceff a different option for the GC 2004-12-13 10:15:11 -02:00
Roberto Ierusalimschy 39a8082f50 more options for controling the GC 2004-12-06 15:53:42 -02:00
Roberto Ierusalimschy 0e002005b1 better names for `luaM_free...' macros 2004-11-24 17:20:21 -02:00
Roberto Ierusalimschy 2f82bf6fe9 better support for 64-bit machines 2004-11-24 16:55:56 -02:00
Roberto Ierusalimschy 6f1ea817f5 better control over memory-size overflows 2004-11-19 13:52:40 -02:00
Roberto Ierusalimschy 8050e75f9d bug: gc metamethod must disable GC steps (to avoid nested calls) 2004-10-08 13:00:34 -03:00
Roberto Ierusalimschy bd38017ddf small optimization for table size in machines with double allignment 2004-10-06 15:34:16 -03:00
Roberto Ierusalimschy 0e54d2be36 bug: barrier was wrong for generational phase 2004-09-15 17:38:15 -03:00
Roberto Ierusalimschy 0de2065f4e tighter tests for stack overflow 2004-09-08 11:23:09 -03:00
Roberto Ierusalimschy 0b06241483 better control for GC cycles 2004-08-30 10:44:44 -03:00
Roberto Ierusalimschy 32d4f304db first implementation of generational GC 2004-08-24 17:12:06 -03:00
Roberto Ierusalimschy 26ae992129 less conservative write barrier for tables 2004-08-10 16:17:23 -03:00
Roberto Ierusalimschy b4cd38ba6c new scheme for configuration through `luaconf.h' 2004-04-30 17:13:38 -03:00
Roberto Ierusalimschy 178246062c reuse `sweeplist' for all lists 2004-03-23 09:57:12 -03:00
Roberto Ierusalimschy a4e1230f95 better way to control open upvalues 2004-03-15 18:04:33 -03:00
Roberto Ierusalimschy b876ec61c0 new (temporary?) API for garbage collector 2004-03-09 14:34:35 -03:00
Roberto Ierusalimschy 2aaf7394ad more and better tools (assertions & inspectors) to check incremental GC 2004-02-16 16:09:52 -03:00
Roberto Ierusalimschy beb2aa5a46 atomic operations are not GC "states" 2003-12-12 16:29:34 -02:00
Roberto Ierusalimschy 47fc57a252 `TObject' renamed to `TValue' + other name changes and better assertions 
for incremental garbage collection
 2003-12-10 10:13:36 -02:00
Roberto Ierusalimschy df429f163a First version of incremental GC 2003-12-09 14:56:11 -02:00
Roberto Ierusalimschy fe595a45c2 `grayagain' list 2003-12-04 16:52:23 -02:00
Roberto Ierusalimschy 9db1942bac sweep of strings also incremental 2003-12-04 15:22:42 -02:00
Roberto Ierusalimschy c6eac44a94 two different white flags (to distinguish dead elements from new ones) 2003-12-03 18:03:07 -02:00
Roberto Ierusalimschy 8878554b85 single list for all collectible objects, with udata separated at the 
end of the list
 2003-12-03 10:30:41 -02:00
Roberto Ierusalimschy af850484a9 default metatable can be NULL 2003-12-01 16:22:56 -02:00
Roberto Ierusalimschy 1d10acb355 incremental GC phases 2003-12-01 14:33:30 -02:00
Roberto Ierusalimschy 57b6ed6815 initial implementation of white/gray/black coloring 2003-11-19 17:41:57 -02:00
Roberto Ierusalimschy 366e4af3c9 towards incremental GC 2003-11-18 12:55:11 -02:00
Roberto Ierusalimschy ab7d9bfd0c cleaner code for manipulation of `marked' field 2003-11-17 17:50:05 -02:00
Roberto Ierusalimschy 8332d5c8a5 parser fully reentrant(!) 2003-08-27 18:01:44 -03:00