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491 Commits

Author SHA1 Message Date
Roberto Ierusalimschy 6e600695f8 field 'sizearray' in struct 'Table' changed to 'alimit', which can 
be used as a hint for '#t'
 2018-06-15 11:14:20 -03:00
Roberto Ierusalimschy 0c7738240e FALLTHROUGH comment must be last "statement" 
(so it does not work when inside a block)
 2018-03-16 11:22:09 -03:00
Roberto Ierusalimschy 2952bc5fc9 special compact representation for userdata with no user values 
(a common case)
 2018-02-26 10:35:03 -03:00
Roberto Ierusalimschy 4a7fe61806 in 'clearbykeys', clear keys of just-removed entries too 2018-02-23 10:21:27 -03:00
Roberto Ierusalimschy 9243c414d9 first version of empty entries in tables 
(so that, in the future, tables can contain regular nil entries)
 2018-02-23 10:16:18 -03:00
Roberto Ierusalimschy 477ca2fe8c some reorganization in 'lobject.h' 
(just moving stuff around)
 2018-02-22 14:28:10 -03:00
Roberto Ierusalimschy ca6fe7449a userdata can have multiple user values 2018-02-20 13:52:50 -03:00
Roberto Ierusalimschy 1afd5a152d more generic way to handle 'gclist' 2018-02-19 17:06:56 -03:00
Roberto Ierusalimschy daff7c3b4d small corrections in generational mode 
(cannot call finalizers in emergency collections +
 should set everything before calling finalizers)
 2018-02-05 15:14:54 -02:00
Roberto Ierusalimschy e2b15aa21d janitor work on casts 2018-01-28 13:13:26 -02:00
Roberto Ierusalimschy cf7eff45f3 keep control of stack top in Lua functions concentrated in 'luaV_execute' 2017-12-28 13:42:57 -02:00
Roberto Ierusalimschy 1d5b885437 when running Lua code, there is no need to keep 'L->top' "correct"; 
set it only when needed.
 2017-12-20 12:58:05 -02:00
Roberto Ierusalimschy e663a24ab0 more freedom in handling memory-allocation errors (not all allocations 
automatically raise an error), which allows fixing a bug when resizing
a table.
 2017-12-08 15:28:25 -02:00
Roberto Ierusalimschy 421e459684 'luaS_resize' can raise memory errors 2017-12-01 15:38:49 -02:00
Roberto Ierusalimschy ac78b914b6 warnings from Visual Studio /W3 2017-11-30 13:37:16 -02:00
Roberto Ierusalimschy 599f1742c6 detail (typo in comments) 2017-11-23 17:29:04 -02:00
Roberto Ierusalimschy ad0704e40c back to 'CallInfo' (no gains with its removal) 2017-11-07 11:25:26 -02:00
Roberto Ierusalimschy 54eb35a8aa more fields moved out of 'CallInfo' 2017-11-03 10:12:30 -02:00
Roberto Ierusalimschy de9128d09d do not mess up the debt when the collector is not running 2017-10-31 13:29:28 -02:00
Roberto Ierusalimschy 1d8920dd7f some cleaning in GC parameters 2017-10-11 09:38:45 -03:00
Roberto Ierusalimschy 029d269f4d bug: dead keys with nil values can stay in weak tables 2017-08-31 13:14:41 -03:00
Roberto Ierusalimschy f96497397a new type 'StackValue' for stack elements 
(we may want to put extra info there in the future)
 2017-06-29 12:06:44 -03:00
Roberto Ierusalimschy 73ec04fcf3 no more 'DEADKEY'. Table traversals do not need to consider dead keys; 
if the key is dead, it cannot be given to 'next'. Instead, we now
use a 'table' tag without the collectable bit, which makes it
a unique tag good enough to reserve space.
 2017-06-12 11:21:44 -03:00
Roberto Ierusalimschy b6f87491af in hash nodes, keys are stored in separate pieces to avoid wasting 
space with alignments
 2017-06-09 13:48:44 -03:00
Roberto Ierusalimschy 4bc33d64de avoid overflows in computation of step size 2017-06-01 16:16:34 -03:00
Roberto Ierusalimschy 72d82a296c revamping the incremental collector 
Some simplifications (not counting bytes, couting only slots visited;
no more 'gcfinnum'); more GC parameters; using vararg in 'lua_gc' to
set parameters in different GC modes
 2017-05-26 16:14:29 -03:00
Roberto Ierusalimschy 2376eb6347 barrier for prototype's cache (with new gray list 'protogray' to keep 
prototypes to have their caches visited again) + constant 'MAXMISS'
 2017-05-04 10:32:01 -03:00
Roberto Ierusalimschy 8634b2a011 added 'cachemiss' field to prototype to avoid wasting time checking 
hits that fail too often
 2017-04-30 17:43:26 -03:00
Roberto Ierusalimschy f399e6705f ensures that "collectgarbage'step'" in generational mode does a 
minor collection
 2017-04-24 14:52:18 -03:00
Roberto Ierusalimschy 69371c4b84 'KGC_NORMAL' -> 'KGC_INC' + emergency GC signalled by flag (instead 
of mode)
 2017-04-24 13:59:26 -03:00
Roberto Ierusalimschy c354211744 small bug in generational control 2017-04-20 15:24:33 -03:00
Roberto Ierusalimschy c7bdc0e0e8 first version of control for the generational collector 2017-04-19 14:02:50 -03:00
Roberto Ierusalimschy 16001acb15 small corrections + removal of debugging functions 'count' and 
'printgray'.
 2017-04-12 15:01:40 -03:00
Roberto Ierusalimschy 0c8a7e071b 'mainthread' lives in 'allgc' list, like everybody else 2017-04-11 16:00:27 -03:00
Roberto Ierusalimschy a3d36fe283 Upvalues collected like everything else (with mark-sweep) instead 
of reference count (simpler and better for generational mode)
 2017-04-11 15:41:09 -03:00
Roberto Ierusalimschy 9569ad6b0d Comments for generational collector 2017-04-10 10:33:04 -03:00
Roberto Ierusalimschy 2331e1beec small changes in 'luaC_upvalbarrier' 2017-04-06 10:08:56 -03:00
Roberto Ierusalimschy e4287da3a6 generational collector (still not complete) 2017-04-05 13:50:51 -03:00
Roberto Ierusalimschy f5f3df3bd1 generational collection: new attempt (still incomplete) 2017-02-23 18:07:34 -03:00
Roberto Ierusalimschy 2a235312f0 detail (removing spaces at end of lines) 2016-12-22 11:08:50 -02:00
Roberto Ierusalimschy 7b1fba69b7 using 'lastfree == NULL' to signal that table is using the dummy 
node for its hash part + new macro 'allocsizenode'
 2016-11-07 10:38:35 -02:00
Roberto Ierusalimschy 138d00176c new flag in 'CallInfo.callstatus' to tell whether function is running 
as a finalizer
 2016-10-19 10:31:42 -02:00
Roberto Ierusalimschy 8d4feb504f do not try to ensure that 'sweepgc' points to a live object 
when entering sweep phase ('entersweep'); that may be too
expensive to be done still inside the atomic step. Walking
one single object more often than not will work.
 2016-03-31 16:02:03 -03:00
Roberto Ierusalimschy 03412af06e detail (removed fixed argument to function 'callallpendingfinalizers') 2015-12-10 16:12:30 -02:00
Roberto Ierusalimschy 7485512384 added comment and assert about dead keys 2015-11-03 16:10:44 -02:00
Roberto Ierusalimschy ff1289a361 in 'luaD_call', use two functions instead of one with fixed boolean 
argument
 2015-11-02 16:48:07 -02:00
Roberto Ierusalimschy cd73f3ccc5 now that we have a counter for CallInfos, use it for a more 
accurate value for the memory used by a thread
 2015-11-02 14:19:29 -02:00
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