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Author SHA1 Message Date
Roberto Ierusalimschy
6063c47031 Field 'lastfree' changed (back) to 'Node *' 
Due to allignment, it is already using the space of a pointer, and
a pointer generates slightly simpler code.
 2024-02-07 13:56:39 -03:00
Roberto Ierusalimschy
0c9bec0d38 Better handling of size limit when resizing a table 
Avoid silent conversions from int to unsigned int when calling
'luaH_resize'; avoid silent conversions from lua_Integer to int in
'table.create'; MAXASIZE corrected for the new implementation of arrays;
'luaH_resize' checks explicitly whether new size respects MAXASIZE.
(Even constructors were bypassing that check.)
 2024-02-07 13:39:54 -03:00
Roberto Ierusalimschy
c31d6774ac Details 2024-01-29 14:29:24 -03:00
Roberto Ierusalimschy
108e0bdc84 Merge branch 'master' into nextversion 2024-01-25 13:52:52 -03:00
Roberto Ierusalimschy
b34a97a4af Small optimization in 'luaH_psetint' 
It is quite common to write to empty but existing cells in the array
part of a table, so 'luaH_psetint' checks for the common case that
the table doesn't have a newindex metamethod to complete the write.
 2024-01-25 13:44:49 -03:00
Roberto Ierusalimschy
3e9dbe143d New function 'table.create' 
Creates a table preallocating memory. (It just exports to Lua the API
function 'lua_createtable'.)
 2024-01-18 15:16:26 -03:00
Roberto Ierusalimschy
4a8e480864 New mechanism to query GC parameters 2024-01-16 17:02:55 -03:00
Roberto Ierusalimschy
17e0c29d9b Clear interface between references and predefines 
The reference system has a defined way to add initial values to the
table where it operates.
 2024-01-15 11:31:49 -03:00
Roberto Ierusalimschy
8eb0abc9db Removed uses of LUA_NUMTAGS 
That constant was already deprecated (see commit 6aabf4b15e).
 2024-01-13 18:10:50 -03:00
Roberto Ierusalimschy
d862da6d04 Optimizations for 'lua_rawgeti' and 'lua_rawseti' 
'lua_rawgeti' now uses "fast track"; 'lua_rawseti' still calls
'luaH_setint', but the latter was recoded to avoid extra overhead
when writing to the array part after 'alimit'.
 2024-01-12 15:50:51 -03:00
Roberto Ierusalimschy
e288c5a918 Bug: Yielding in a hook stops in the wrong instruction 
Yielding in a hook must decrease the program counter, because it already
counted an instruction that, in the end, was not executed. However,
that decrement should be done only when about to restart the thread.
Otherwise, inspecting the thread with the debug library shows it one
instruction behind of where it really is.
 2024-01-11 13:44:16 -03:00
Roberto Ierusalimschy
7827c40c49 A few more tweaks in the garbage collector 2024-01-10 14:45:58 -03:00
Roberto Ierusalimschy
e7af9cdf0b Fixed buffers reuse absolute line information 2023-12-27 17:42:00 -03:00
Roberto Ierusalimschy
12b6f610b0 Several tweaks in the garbage collector 
- back with step size in collectgarbage("step")
- adjustments in defaults for some GC parameters
- adjustments in 'luaO_codeparam'
 2023-12-27 12:09:11 -03:00
Roberto Ierusalimschy
e81f586001 Removed compatibility option LUA_COMPAT_GCPARAMS 
The meaning of different GC parameters changed, so there is point in
supporting old values for them. The new code simply ignores the
parameters when changing the GC mode, so the incompatibility is small.
 2023-12-22 14:57:43 -03:00
Roberto Ierusalimschy
e2cc179454 New option "setparms" for 'collectgarbage' 
The generational mode also uses the parameters for the incremental
mode in its major collections, so it should be easy to change those
parameters without having to change the GC mode.
 2023-12-22 14:48:07 -03:00
Roberto Ierusalimschy
5853c37a83 Bug: Buffer overflow in string concatenation 
Even if the string fits in size_t, the whole size of the TString object
can overflow when we add the header.
 2023-12-21 13:37:51 -03:00
Roberto Ierusalimschy
ad0ea7813b GC parameters encoded as floating-point bytes 
This encoding brings more precision and a larger range for these
parameters.
 2023-12-20 16:25:20 -03:00
Roberto Ierusalimschy
666e95a66d Option 0 for step multiplier makes GC non-incremental 2023-12-20 11:06:27 -03:00
Roberto Ierusalimschy
4eda1acafa Cleaner protocol between 'lua_dump' and writer function 
'lua_dump' signals to the writer function the end of a dump, so that
is has more freedom when using the stack.
 2023-12-14 11:41:57 -03:00
Roberto Ierusalimschy
ad73b33224 Check minor->major made at the end of a minor cycle 
It does not make sense to wait for another cycle to decide when much of
the information about creation of old objects is already available.
 2023-12-07 15:45:41 -03:00
Roberto Ierusalimschy
925fe8a0f2 First criteria for shifts minor<->major 2023-12-07 15:45:11 -03:00
Roberto Ierusalimschy
789e7acdea Major collections done incrementally 
Major collections do not need to "stop the world". Still pending:
criteria for shifts minor-major, shifts generational-incremental.
 2023-12-06 10:49:56 -03:00
Roberto Ierusalimschy
74b4013538 Removed macro 'changeage' 
It is simpler to use always 'setage'. The saving from 'changeage'
is too irrelevant.
 2023-12-01 16:42:01 -03:00
Roberto Ierusalimschy
b719ff9399 Removed parameter in 'collectgarbage("step")' 
A call to 'collectgarbage("step")' always performs one GC basic step.
 2023-12-01 16:38:28 -03:00
Roberto Ierusalimschy
35a2fed2d1 Removed deprecated options in 'lua_gc' 
Options 'setpause' and 'setstepmul' were deprecated in Lua 5.4.
 2023-11-30 15:51:02 -03:00
Roberto Ierusalimschy
63d68bd657 Comments detailing the ages for generational GC 
Plus other comments and small details.
 2023-11-29 16:22:09 -03:00
Roberto Ierusalimschy
842a83f09c Panic functions should not raise errors 
The standard panic function was using 'lua_tostring', which may raise
a memory-allocation error if error value is a number.
 2023-11-24 16:08:55 -03:00
Roberto Ierusalimschy
011850a8f8 Details in the manual 2023-11-24 14:44:38 -03:00
Roberto Ierusalimschy
52b899d60d Simpler coding for new representation for arrays 
With the tags comming first in a cell, we can define the whole cell
as a C type and let C do part of the address computations.
 2023-11-24 14:41:07 -03:00
Roberto Ierusalimschy
25cd3d377e Buffer in 'luai_makeseed' measured in bytes 
In the (rare) cases when sizeof(void*) or sizeof(time_t) are not
multiples of sizeof(int), we still can use all their bytes in the seed.
 2023-11-15 10:28:32 -03:00
Roberto Ierusalimschy
1028f296a8 Default paths stored as external strings 2023-11-13 13:41:59 -03:00
Roberto Ierusalimschy
6d042a178f Auxiliary buffer uses external strings 
The buffer system from the auxiliary library reuses its buffer
as external memory when closing long strings.
 2023-11-13 13:12:33 -03:00
Roberto Ierusalimschy
eabf425c76 Correct anchoring and GC barriers in 'loadString' 
Call to 'luaH_setint' could call the GC with the string unanchored.
Moreover, previously saved strings were being assigned to the prototype
without a barrier.
 2023-11-13 13:11:09 -03:00
Roberto Ierusalimschy
3b57e37e48 Fixed buffers save long strings as external. 2023-11-10 12:35:48 -03:00
Roberto Ierusalimschy
024f9064f1 External strings 
Strings can use external buffers to store their contents.
 2023-11-09 17:05:42 -03:00
Roberto Ierusalimschy
7f4906f565 Towards external strings 
Long strings have a pointer to string contents.
 2023-11-08 13:24:38 -03:00
Roberto Ierusalimschy
b8a9d14032 Details 
Comments and parameter name in header file.
 2023-11-08 10:41:24 -03:00
Roberto Ierusalimschy
19afd91687 Solving merge issue with use of tables in dump/undump 
The use of tables in dump/undump to reuse strings did not exist in
the version that changed the representation of arrays, so it was not
corrected for the new API for tables.
 2023-11-08 10:02:06 -03:00
Roberto Ierusalimschy
37c215b43f Merge branch 'newarray' into nextversion 2023-11-07 17:26:15 -03:00
Roberto Ierusalimschy
9e99f3071d Merge branch 'master' into nextversion 2023-11-07 17:25:46 -03:00
Roberto Ierusalimschy
fa075b7953 Merge branch 'master' into newarray 2023-11-03 15:39:14 -03:00
Roberto Ierusalimschy
08a077d673 Full implementation of new representation for arrays 2023-11-03 15:26:13 -03:00
Roberto Ierusalimschy
7923dbbf72 Bug: Recursion in 'getobjname' can stack overflow 
'getobjname' now broken in two, a basic version that handles locals,
upvalues, and constants, and a full version, which uses the basic
version to handle table accesses (globals and fields).
 2023-11-01 12:00:54 -03:00
Roberto Ierusalimschy
43c8e5bded Full abstraction for representation of array values 2023-10-30 14:25:59 -03:00
Roberto Ierusalimschy
b8b709b6d4 Avoid direct accesses to the array part of a table 2023-10-27 16:32:49 -03:00
Roberto Ierusalimschy
81e4fce530 Simpler test in 'luaH_getint' 
The test whether key is inside the array part of a table uses a bit
trick to avoid computing the real size of the array part.
 2023-10-26 16:12:25 -03:00
Roberto Ierusalimschy
6baee9ef9d Removed test for "corrupted binary dump" 
Test is too non portable. (For instance, it does not work for
different number types.)
 2023-09-08 16:19:21 -03:00
Roberto Ierusalimschy
edd8589f47 Avoid casts from unsigned long to floating-point 
Old Microsoft compilers do not support those casts.
 2023-09-08 11:34:39 -03:00
Roberto Ierusalimschy
14e416355f Added suport for Fixed Buffers 
A fixed buffer keeps a binary chunk "forever", so that the program
does not need to copy some of its parts when loading it.
 2023-09-05 15:30:45 -03:00