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Author SHA1 Message Date
Roberto Ierusalimschy
86a8e74824 Details 2024-03-28 17:11:33 -03:00
Roberto Ierusalimschy
9fa63a6268 Some 'unsigned int' changed to 'unsigned' 
'unsigned int' is too long sometimes. (We already write 'long' instead
of 'long int'...)
 2024-03-22 14:06:11 -03:00
Roberto Ierusalimschy
0593256707 'luaH_get' functions return tag of the result 
Undoing previous commit. Returning TValue increases code size without
any visible gains. Returning the tag is a little simpler than returning
a special code (HOK/HNOTFOUND) and the tag is useful by itself in
some cases.
 2024-03-21 11:23:21 -03:00
Roberto Ierusalimschy
ce6f5502c9 'luaH_get' functions return 'TValue' 
Instead of receiving a parameter telling them where to put the result
of the query, these functions return the TValue directly. (That is,
they return a structure.)
 2024-03-18 15:56:32 -03:00
Roberto Ierusalimschy
ba71060381 Removed "bulk operations" 
Negligible performance gains don't justify extra complexity.
 2024-03-15 11:23:35 -03:00
Roberto Ierusalimschy
3823fc6c81 Added "bulk operations" to arrays 
A few operations on arrays can be performed "in bulk", treating all
tags of a cell as a simple (or a few) word(s).
 2024-03-15 11:01:34 -03:00
Roberto Ierusalimschy
52aa2b5d24 Details 
- 'unsigned int' -> 'unsigned'
- Some explicit casts to avoid warnings
- Test avoids printing the value of 'fail' (which may not be nil)
 2024-03-13 09:20:34 -03:00
Roberto Ierusalimschy
cc2b66c856 Removed type 'varint_t' 
size_t should be big enough to count the number of strings in a dump.
(And, by definition, it is big enough to count the length of each
string.)
 2024-03-13 09:16:51 -03:00
Roberto Ierusalimschy
65b07dd53d API asserts for illegal pops of to-be-closed variables 2024-03-11 14:05:06 -03:00
Roberto Ierusalimschy
7237eb3f1c Fixed warnings from different compilers 2024-02-15 11:18:34 -03:00
Roberto Ierusalimschy
165389b27b New interface to function 'luaL_openselectedlibs' 
Instead of preloading all non-loaded libraries, there is another
mask to select which libraries to preload.
 2024-02-15 11:17:39 -03:00
Roberto Ierusalimschy
c8121ce34b Revising code for Varint encoding in dumps 
- Usign lua_Unsigned to count strings.
- Varint uses a type large enough both for size_t and lua_Unsigned.
- Most-Significant Bit 0 means last byte, to conform to common usage.
- (unrelated) Change in macro 'getaddr' so that multiplication is
  by constants.
 2024-02-12 15:16:11 -03:00
Roberto Ierusalimschy
7360f8d0fd Removed deprecated function 'setcstacklimit' 2024-02-07 14:20:43 -03:00
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