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* Fixed bug with to-be-closed variables in base C levelRoberto Ierusalimschy2019-04-261-0/+2
| | | | | | | | To-be-closed variables in C use 'ci.nresults' to code that there is a variable to be closed in that function. The intialization of the base C level (the one "running" when calling API functions outside any Lua call) did not initialize 'ci.nresults', creating (correct) warnings in valgrind.
* LUAI_MAXCCALLS renamed LUAI_MAXCSTACKRoberto Ierusalimschy2019-03-251-8/+8
| | | | | | | The limit LUAI_MAXCCALLS was renamed LUAI_MAXCSTACK, which better represents its meaning. Moreover, its definition was moved to 'luaconf.h', given its importance now that Lua does not use a "stackless" implementation.
* Changes in the warning systemRoberto Ierusalimschy2019-03-141-2/+2
| | | | | | | | - The warning functions get an extra parameter that tells whether message is to be continued (instead of using end-of-lines as a signal). - The user data for the warning function is a regular value, instead of a writable slot inside the Lua state.
* After a "bad collections", avoid switching back back to generationalRoberto Ierusalimschy2019-01-301-1/+3
| | | | | | | After a major bad collection (one that collects too few objects), next collection will be major again. In that case, avoid switching back to generational mode (as it will have to switch again to incremental to do next major collection).
* No more LUA_ERRGCMM errorsRoberto Ierusalimschy2019-01-011-0/+7
| | | | | Errors in finalizers (__gc metamethods) are never propagated. Instead, they generate a warning.
* Added a warning system to LuaRoberto Ierusalimschy2018-12-281-0/+2
| | | | | The warning system is just a way for Lua to emit warnings, messages to the programmer that do not interfere with the running program.
* Changes in the control of C-stack overflowRoberto Ierusalimschy2018-12-271-16/+33
| | | | | | | | | | * unification of the 'nny' and 'nCcalls' counters; * external C functions ('lua_CFunction') count more "slots" in the C stack (to allow for their possible use of buffers) * added a new test script specific for C-stack overflows. (Most of those tests were already present, but concentrating them in a single script easies the task of checking whether 'LUAI_MAXCCALLS' is adequate in a system.)
* New functions 'lua_resetthread' and 'coroutine.kill'Roberto Ierusalimschy2018-12-131-2/+25
| | | | | | New functions to reset/kill a thread/coroutine, mainly (only?) to close any pending to-be-closed variable. ('lua_resetthread' also allows a thread to be reused...)
* Removed internal cache for closuresRoberto Ierusalimschy2018-11-011-1/+1
| | | | | | | | | | | | | | | | | | | The mechanism of "caching the last closure created for a prototype to try to reuse it the next time a closure for that prototype is created" was removed. There are several reasons: - It is hard to find a natural example where this cache has a measurable impact on performance. - Programmers already perceive closure creation as something slow, so they tend to avoid it inside hot paths. (Any case where the cache could reuse a closure can be rewritten predefining the closure in some variable and using that variable.) - The implementation was somewhat complex, due to a bad interaction with the generational collector. (Typically, new closures are new, while prototypes are old. So, the cache breaks the invariant that old objects should not point to new ones.)
* First "complete" implementation of to-be-closed variablesRoberto Ierusalimschy2018-10-171-2/+2
| | | | | | | Still missing: - handling of memory errors when creating upvalue (must run closing method all the same) - interaction with coroutines
* Removed extra information from RCS keyword stringsRoberto Ierusalimschy2018-08-231-1/+1
| | | | | Version numbers and dates (mostly wrong) from RCS keyword strings removed from all source files; only the file name are kept.
* no need to check whether libraries and host use the same kernel;Roberto Ierusalimschy2018-06-181-6/+5
| | | | Lua should work correctly with several copies of the kernel
* new field 'nilvalue' in struct 'global_State' to avoid the use ofRoberto Ierusalimschy2018-06-151-1/+2
| | | | addresses of static variables
* no more 'luaO_nilobject' to avoid comparison of global variable addressesRoberto Ierusalimschy2018-06-011-3/+2
| | | | (now uses static variables)
* macro 'luai_makeseed' now controls the whole process of making the seedRoberto Ierusalimschy2018-05-291-17/+17
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* 'gcemergency' should be zero before any memory allocationRoberto Ierusalimschy2018-02-051-2/+2
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* janitor work on castsRoberto Ierusalimschy2018-01-281-3/+3
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* new macro 'isLuacode' (to distinguish regular Lua code fromRoberto Ierusalimschy2017-12-191-2/+2
| | | | hooks, where C code can run inside a Lua function).
* no more 'stackless' implementation; 'luaV_execute' calls itselfRoberto Ierusalimschy2017-11-231-2/+26
| | | | | recursively to execute function calls. 'unroll' continues all executions suspended by an yield (through a long jump)
* using 'trap' to stop 'luaV_execute' when necessary (tracing andRoberto Ierusalimschy2017-11-131-1/+2
| | | | to update its copy of 'base' when the stack is reallocated)
* back to 'CallInfo' (no gains with its removal)Roberto Ierusalimschy2017-11-071-8/+55
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* no more 'CallInfo' structureRoberto Ierusalimschy2017-11-041-53/+4
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* more fields moved out of 'CallInfo'Roberto Ierusalimschy2017-11-031-3/+3
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* baby steps to remove 'CallInfo': keeping 'L->func' correctRoberto Ierusalimschy2017-10-311-3/+6
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* some cleaning in GC parametersRoberto Ierusalimschy2017-10-111-3/+5
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* new type 'StackValue' for stack elementsRoberto Ierusalimschy2017-06-291-5/+5
| | | | (we may want to put extra info there in the future)
* revamping the incremental collectorRoberto Ierusalimschy2017-05-261-10/+2
| | | | | | 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
* barrier for prototype's cache (with new gray list 'protogray' to keepRoberto Ierusalimschy2017-05-041-2/+2
| | | | prototypes to have their caches visited again) + constant 'MAXMISS'
* 'KGC_NORMAL' -> 'KGC_INC' + emergency GC signalled by flag (insteadRoberto Ierusalimschy2017-04-241-2/+3
| | | | of mode)
* removed initialization of 'GCestimate' (it is initialized duringRoberto Ierusalimschy2017-04-121-2/+1
| | | | a GC cycle, when it start counting)
* 'mainthread' lives in 'allgc' list, like everybody elseRoberto Ierusalimschy2017-04-111-3/+4
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* generational collector (still not complete)Roberto Ierusalimschy2017-04-051-2/+3
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* generational collection: new attempt (still incomplete)Roberto Ierusalimschy2017-02-231-1/+2
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* removed field 'n' from 'CallInfo' (not being used right now)Roberto Ierusalimschy2015-11-131-14/+11
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* added counters for total and individual CallInfo entries (to allowRoberto Ierusalimschy2015-11-021-8/+16
| | | | better syncronization between CallInfo size and stack size)
* macro 'addbuff' was using external variable name, instead of usingRoberto Ierusalimschy2015-10-201-2/+2
| | | | its parameter name inside the macro.
* long strings are created directly in final position when possibleRoberto Ierusalimschy2015-09-081-3/+1
| | | | | (instead of using an auxiliar buffer to first create the string and then allocate the final string and copy result there)
* avoid overflows (detected with 'clang -ftrapv')Roberto Ierusalimschy2015-07-131-3/+7
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* new cache for interning stringsRoberto Ierusalimschy2015-03-041-8/+2
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* comments (references to "ANSI C" changed to "ISO C", which is theRoberto Ierusalimschy2014-11-021-4/+3
| | | | international name
* added include for 'lprefix.h', for stuff that must be added beforeRoberto Ierusalimschy2014-11-021-4/+6
| | | | any other header file
* extra space for new threads is initialized with a copy of the mainRoberto Ierusalimschy2014-07-241-3/+4
| | | | thread, not of the creator thread.
* better support for extra user space associated with a Lua stateRoberto Ierusalimschy2014-07-241-4/+5
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* type 'TString' refers directly to the structure inside the unionRoberto Ierusalimschy2014-07-181-2/+2
| | | | (union used only for size purposes)
* added check for conversion 'obj2gco' (and corrections for smallRoberto Ierusalimschy2014-07-181-2/+2
| | | | problems detected by this check)
* no need to keep threads in a different GC list, now that there is theRoberto Ierusalimschy2014-02-181-4/+4
| | | | 'twups' list
* new list 'twups' to allow traversal of upvalues from dead threadsRoberto Ierusalimschy2014-02-181-1/+3
| | | | (+ fixed some problems with cycles involving those upvalues)
* better control for number of finalizers called at each GC cycleRoberto Ierusalimschy2014-02-131-6/+7
| | | | (increases progressively)
* no more local collectionRoberto Ierusalimschy2014-02-131-14/+4
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* keep a single list of objects to be finalized (with local and non-localRoberto Ierusalimschy2014-02-111-2/+2
| | | | objects), to ensure finalization order
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