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444 Commits

Author SHA1 Message Date
Roberto Ierusalimschy 41964648ee long strings are created directly in final position when possible 
(instead of using an auxiliar buffer to first create the string
and then allocate the final string and copy result there)
 2015-09-08 12:41:05 -03:00
Roberto Ierusalimschy 2b61360d82 avoid overflows (detected with 'clang -ftrapv') 2015-07-13 10:30:03 -03:00
Roberto Ierusalimschy b436ed58a3 'clearapihash' -> 'luaS_clearcache' and moved to 'lstring.c' (which 
keeps all code related to this cache)
 2015-03-25 10:42:19 -03:00
Roberto Ierusalimschy 2ae2e6408e avoid testing for NULL when marking objects that cannot be NULL 2015-03-04 10:51:55 -03:00
Roberto Ierusalimschy a80cada914 new cache for interning strings 2015-03-04 10:31:21 -03:00
Roberto Ierusalimschy 7e2015a46d size of short strings stored in a single byte, to reduce the size 
of struct 'TString'
 2015-01-16 14:54:37 -02:00
Roberto Ierusalimschy 88ef06f4f3 comments were wrong (not updated about several changes) 2014-12-20 11:58:15 -02:00
Roberto Ierusalimschy 28fdbcf393 added include for 'lprefix.h', for stuff that must be added before 
any other header file
 2014-11-02 17:19:04 -02:00
Roberto Ierusalimschy 4542fb9f78 comments (a few extra quotes around identifiers) 2014-10-30 16:53:28 -02:00
Roberto Ierusalimschy e9885efc7c added comment and assert about an (impossible) division by zero 2014-10-29 13:02:53 -02:00
Roberto Ierusalimschy bdf566a8a3 `name' in comments changed to 'name' 2014-10-25 09:50:46 -02:00
Roberto Ierusalimschy 2f4d429071 details (comments) 2014-10-03 09:54:57 -03:00
Roberto Ierusalimschy 3a15c7ce43 size for array part of a table ('sizearray') changed from 'int' to 
'unsigned int', which allows twice as many elements in the array part
 2014-09-04 15:15:29 -03:00
Roberto Ierusalimschy 0a6b58c3aa weak tables that must be retraversed are kept in 'grayagain' list 
until atomic phase (instead of going to their special lists) +
more comments
 2014-09-03 13:54:41 -03:00
Roberto Ierusalimschy df608f842a 'linktable' -> 'linkgclist' (and used for all links with 'gclist') 2014-09-01 14:37:11 -03:00
Roberto Ierusalimschy 07c7fdb9df simpler definition for 'setobj' (trust the compiler for the assignment) 2014-07-29 13:22:24 -03:00
Roberto Ierusalimschy 3c6d0aaa7d 'iswhite' and related macros now can work directly on any object 
(no need to convert to 'GCObject')
 2014-07-19 12:14:46 -03:00
Roberto Ierusalimschy e43612aaf6 put the restriction that 'luaC_barrierback' works only on tables 
in its prototype
 2014-07-19 12:09:37 -03:00
Roberto Ierusalimschy 2898e2fd12 removed useless assertion (gcstate != GCSpause already implied by 
other assertions) and wrong assertion (setmetatable uses this barrier
for tables too)
 2014-07-19 11:44:19 -03:00
Roberto Ierusalimschy bb12903120 type 'Udata' refers directly to structure inside the union (union 
used only for aligning purposes now)
 2014-07-18 11:46:47 -03:00
Roberto Ierusalimschy ca41b43f53 type 'TString' refers directly to the structure inside the union 
(union used only for size purposes)
 2014-07-18 10:36:14 -03:00
Roberto Ierusalimschy 56137d58ff added check for conversion 'obj2gco' (and corrections for small 
problems detected by this check)
 2014-07-18 09:17:54 -03:00
Roberto Ierusalimschy 9aec500a26 no need for field 'gch' anymore 2014-07-17 14:27:49 -03:00
Roberto Ierusalimschy b9dcf9974d detail (typos in comments) 2014-06-30 16:48:08 -03:00
Roberto Ierusalimschy 4d696c45b9 simpler handling of 'GCScallfin' state + more comments 2014-05-25 16:08:32 -03:00
Roberto Ierusalimschy 4a24883674 'GCmemtrav' does not need to track the entire collection, only each 
single step individually
 2014-04-04 14:01:04 -03:00
Roberto Ierusalimschy f61ceee708 LUAI_FUNC is being used only in header files 2014-04-02 13:44:42 -03:00
Roberto Ierusalimschy 0d745ed04c more precise estimation (GCestimate) for total bytes in use after 
a GC cycle
 2014-04-01 11:06:59 -03:00
Roberto Ierusalimschy da4811238a details (typos in comments) 2014-03-21 10:52:33 -03:00
Roberto Ierusalimschy c86b9da022 userdata can have any Lua value as uservalue 2014-02-19 10:52:42 -03:00
Roberto Ierusalimschy 3f78de256e no need to keep threads in a different GC list, now that there is the 
'twups' list
 2014-02-18 10:46:26 -03:00
Roberto Ierusalimschy d764cc5522 new list 'twups' to allow traversal of upvalues from dead threads 
(+ fixed some problems with cycles involving those upvalues)
 2014-02-18 10:39:37 -03:00
Roberto Ierusalimschy ffa96d988d field 'op' renamed to 'open' 2014-02-15 11:12:01 -02:00
Roberto Ierusalimschy 1cce3e6842 change in the way 'collectgarbage("step", size)' interprets 'size' 
(mimicking the way the GC itself behaves when Lua allocates 'size'
Kbytes)
 2014-02-14 14:43:14 -02:00
Roberto Ierusalimschy 90b0ac6495 limit to 'gcstepmul' imposed by 'lua_gc' (+ some details in 'lgc.c') 2014-02-13 15:25:20 -02:00
Roberto Ierusalimschy de3b1c9b53 better control for number of finalizers called at each GC cycle 
(increases progressively)
 2014-02-13 12:46:38 -02:00
Roberto Ierusalimschy 733c58595b no more local collection 2014-02-13 10:11:34 -02:00
Roberto Ierusalimschy 6b30774469 detail (better presentation for 'luaC_step') 2014-02-11 10:28:47 -02:00
Roberto Ierusalimschy ba3586cc90 keep a single list of objects to be finalized (with local and non-local 
objects), to ensure finalization order
 2014-02-11 10:18:12 -02:00
Roberto Ierusalimschy 88e23f508c details 2013-12-13 13:42:08 -02:00
Roberto Ierusalimschy c8585efc78 use goto to implement a tail call in 'reallymarkobject' 2013-12-13 13:17:00 -02:00
Roberto Ierusalimschy 4c6dfc342b CallInfo lists shrinks together with their associated stacks 2013-09-17 12:40:06 -03:00
Roberto Ierusalimschy 686e57cf9c GC local pause configurable 2013-09-13 13:21:52 -03:00
Roberto Ierusalimschy 6ca7b63bce check for shrinking string table done only at the end of a GC cycle 2013-09-11 11:56:15 -03:00
Roberto Ierusalimschy 4eeb1831be new names and better order for GC states (sweep first lists that 
can have dead objects)
 2013-09-11 11:47:08 -03:00
Roberto Ierusalimschy dd373a8f66 threads are kept in a separated GC list, linked after the main thread 2013-09-11 11:09:55 -03:00
Roberto Ierusalimschy 7061fe1d56 detail: 'sweepstep' checks end of phase after calling 'sweeplist', so 
that phases with small lists return 0 at the first call to 'sweepstep'
 2013-09-11 10:24:55 -03:00
Roberto Ierusalimschy d8aa8dd97e objects in list 'tobefnz' have a GC life-cycle like all others 
(specifically they are cleaned during sweep phase)
 2013-09-11 09:47:48 -03:00
Roberto Ierusalimschy 1150873447 'luaC_newobj' does not handle special cases; only special case 
now is threads, which do not use 'luaC_newobj' anymore.
 2013-09-11 09:26:14 -03:00
Roberto Ierusalimschy aeff4f79fa local collection now calls finalizers 2013-09-03 12:37:10 -03:00
Roberto Ierusalimschy 1bf4faec64 new GC state to sweep 'localgc' list + small changes in sweep control 2013-08-30 16:14:26 -03:00
Roberto Ierusalimschy b5e75fde4e bug: local collection must clear rest of stack 2013-08-29 10:34:16 -03:00
Roberto Ierusalimschy 9a871dd3db tables and userdata all go to local list, too 2013-08-28 15:30:26 -03:00
Roberto Ierusalimschy 90972ff136 LOCALBLACK changed to LOCALMARK and used also to control whether object 
is in 'localgc' list + luaC_newobj by default puts object in 'localgc'
list
 2013-08-27 17:04:00 -03:00
Roberto Ierusalimschy af35c7f398 upvalues collected by reference count 2013-08-27 15:53:35 -03:00
Roberto Ierusalimschy 742b7377d3 Lua closures go to local, too 2013-08-26 09:41:10 -03:00
Roberto Ierusalimschy 50955e27f5 C functions and strings now go to the local list; first version 
of the local collector
 2013-08-23 10:34:54 -03:00
Roberto Ierusalimschy 0df6635711 "fixed" objects kept in a separated list (instead of being kept in 
'allgc' list with a bit marking them)
 2013-08-21 17:09:51 -03:00
Roberto Ierusalimschy ae800656c9 change in string table: string table is now independent of GC lists; all 
strings live in 'normal' GC lists
 2013-08-21 16:21:16 -03:00
Roberto Ierusalimschy 8f6b80aa1d GC bits SEPARATED and FINALIZEDBIT mixed in FINALIZEDBIT (with simpler 
control)
 2013-08-20 14:46:34 -03:00
Roberto Ierusalimschy 9eff921f8f "barrier" for link prototype->cache changed to be consistent with 
GC behavior (link is cleared to preserve invariant)
 2013-08-19 11:18:43 -03:00
Roberto Ierusalimschy 439d74e29f added 'local' bit (true => object is only refered by local variables) 2013-08-16 15:55:49 -03:00
Roberto Ierusalimschy 3679d33b02 barrier conditions rewritten to test first 'isblack' and then 'iswhite' 
(during a pause all objects are white, so 'isblack' fails much more
often than 'iswhite')
 2013-08-13 14:36:44 -03:00
Roberto Ierusalimschy 78b941039d change to allow collector to stop when it goes to the atomic phase 
(just for debugging)
 2013-08-07 12:39:09 -03:00
Roberto Ierusalimschy 623e388bb4 double-linked list of all upvalues elliminated and changed to a 
traversal of all non-marked threads
 2013-08-07 09:18:11 -03:00
Roberto Ierusalimschy 677d90165f no more generational collection !!! 2013-08-05 13:58:28 -03:00
Roberto Ierusalimschy c37b7b3cca bug: garbage collector can trigger too many times in recursive loops, 
because it was not computing the size of CallInfo structures in threads
 2013-04-26 15:26:49 -03:00
Roberto Ierusalimschy 75250a237c typos in comments 2013-03-16 18:10:18 -03:00
Roberto Ierusalimschy 437a49be5e cast to avoid warnings 2013-03-15 15:33:36 -03:00
Roberto Ierusalimschy a799ed5af9 more precise control for GC pause (based on threshold) 2012-10-19 16:00:33 -03:00
Roberto Ierusalimschy fdae4b9453 removed commented-out line (for debugging) 2012-10-03 09:36:17 -03:00
Roberto Ierusalimschy ae1d318822 small bug: generational mode is always in 'propagate' mode only 
outside the collector: during collection of course it must go to
other modes.
 2012-09-11 09:53:08 -03:00
Roberto Ierusalimschy e4f609d0ee collector in generational mode must be in 'propagate' state when 
not running a collection
 2012-07-04 12:52:38 -03:00
Roberto Ierusalimschy 4fc15bbfb7 major collections in generational mode are triggered by comparison with 
the memory estimate from last major collection
 2012-07-02 10:40:05 -03:00
Roberto Ierusalimschy c510d94549 includes counts from 'sweeptolive' in cost of atomic step 2012-05-31 18:28:59 -03:00
Roberto Ierusalimschy ab2c3d5cde small bug in error handling of finalizers (cannot call lua_tostring 
inside the core) + small bug in luaC_checkfinalizer (when avoiding
remove object being sweeped from sweep list) + small changes in GC
pace control (for the atomic part)
 2012-05-31 17:26:14 -03:00
Roberto Ierusalimschy 6fcdfc6d4f bug: object being moved to 'finobj' list might not be sweeped by 
the collector
 2012-05-30 13:01:10 -03:00
Roberto Ierusalimschy 6efffb9acd only count in 'atomic' objects marked for the first time 2012-05-29 14:52:17 -03:00
Roberto Ierusalimschy 51e8f08e60 more efficient way to apply 'stepmul' + some changes in GC parameters 2012-05-28 17:41:00 -03:00
Roberto Ierusalimschy e29f3a5751 definition of 'GCSTEPSIZE' moved to header file + small changes 2012-05-23 12:43:14 -03:00
Roberto Ierusalimschy 8e7149f496 detail ('char' should be 'const char') 2012-05-22 15:38:56 -03:00
Roberto Ierusalimschy 086da10dac merge of fields 'lastmajormem' (used in gen. mode) and 'estimate' 
(used in inc. mode)
 2012-05-22 14:50:39 -03:00
Roberto Ierusalimschy b36b4b521f try to avoid sweeping new objects created with new white (and 
therefore not collectable in the current cycle)
 2012-05-22 14:32:25 -03:00
Roberto Ierusalimschy 398811a313 simpler macro 'luaC_condGC' + better 'step' in 'lua_gc' + 
micro bug in 'luaC_checkfinalizer' (current sweep object could be
removed from 'allgc' list)
 2012-05-21 10:18:10 -03:00
Roberto Ierusalimschy 2a66b34f72 revamp of the GC pace control; more like 5.1: any X Kbytes allocated 
makes the GC handle f(X) Kbytes of objects
 2012-05-20 17:36:44 -03:00
Roberto Ierusalimschy ea980fdeef removed 'stringmark' trick 2012-05-14 14:52:56 -03:00
Roberto Ierusalimschy 31829ad177 test for whether collector is running moved from function to 
macro 'luaC_condGC'.
 2012-05-11 16:22:33 -03:00
Roberto Ierusalimschy 3cadc37f47 no more 'Proto' objects on the stack. Protos are anchored on outer 
Protos or on a Closure, which must be created before the Proto.
 2012-05-08 10:53:33 -03:00
Roberto Ierusalimschy a4b96ce9a3 first implementation of long strings 2012-01-25 19:05:40 -02:00
Roberto Ierusalimschy fb6eee2805 Lua never uses Ã'assert' (it is always 'lua_assert') 2012-01-23 20:59:02 -02:00
Roberto Ierusalimschy fd22ccd6d0 object tag keeps variant bits too -> no need for 'isC' field in 
Closures + more strick typing for closure variants
 2012-01-20 20:05:50 -02:00
Roberto Ierusalimschy 01747f2c24 error message: "tag method" -> "metamethod" 2011-12-02 11:18:41 -02:00
Roberto Ierusalimschy 217b65e6d9 avoid some warnings about converting 32-bit shifts into 64-bit results 2011-11-28 15:25:48 -02:00
Roberto Ierusalimschy 788a0ecd27 'luaC_separateudata' renamed to 'separatetobefnz' and called only 
from 'lgc.c'
 2011-10-03 14:54:25 -03:00
Roberto Ierusalimschy bc90cf4b83 retraverse all gray lists together to avoid traversing some weak 
tables twice (as they may change lists when traversed)
 2011-10-03 13:22:05 -03:00
Roberto Ierusalimschy 87912786af dead objects are not collectable. 2011-09-24 18:12:01 -03:00
Roberto Ierusalimschy 95ed6c1127 better(?) scheme for cleaning weak tables; all ressurected objects 
are removed from weak values before finalization
 2011-09-24 18:00:40 -03:00
Roberto Ierusalimschy 45c346645c avoid clearing ephemeron tables that have nothing to be cleaned 
(no white elements)
 2011-09-19 14:03:38 -03:00
Roberto Ierusalimschy 74b0bb3a45 macro 'checkconsistency' moved to this file, as it is used only 
here
 2011-05-05 16:42:25 -03:00
Roberto Ierusalimschy 868ff40339 full collection does not restart collector + avoid changing GC 
state if an error happens in a step
 2010-12-29 16:00:23 -02:00