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Author SHA1 Message Date
Roberto Ierusalimschy
e885dee5ab File operations try an "emergency collection" when failing 
If a file operation fails do to lack of resources (too many open
files or not enough memory), it does a full garbage collection and
tries the operation again. Lack of resources are "too many open
files" (process wise and system wise) and "not enough memory".
The code is full of '#if's because error codes are not part
of the standard ISO C.
 2018-07-25 11:44:46 -03:00
Roberto Ierusalimschy
ccae0f5aad Comments about OLD0/OLD1 ages 
Improved the comments in file 'lgc.c' explaining the roles of "ages"
OLD0 and OLD1 in the generacional collector.
 2018-07-18 11:43:45 -03:00
Roberto Ierusalimschy
2e297d6ab3 Fixed bug in generational collection of userdata 
During generational collection, a userdatum must become gray and
go to a gray list after being traversed (like tables), so that
'correctgraylist' can handle it to its next stage.

This commit also added minimum tests for the generational collector,
including one that would detect this bug.
 2018-07-13 15:43:02 -03:00
Roberto Ierusalimschy
fb18346ddd Avoid using 'int' for UTF-8 values 
An 'int' may have only 16 bits, so it may not be big enough for UTF-8
values. The new type 'utfint' (in the utf8 library) ensures at least
21 bits for those values.
 2018-07-12 15:56:44 -03:00
Roberto Ierusalimschy
96f9643f33 Bug: wrong 'nCcalls' when resuming a coroutine 
The counter 'nCcalls' now includes the number of CallInfo structures
pre-allocated (so that these "potential" C calls can be made without
checking 'nCcalls'). So, when copying this value from a thread to
another, in 'lua_resume', it must be corrected to the number of
CallInfo structures in the thread being resumed.
 2018-07-11 16:11:50 -03:00
Roberto Ierusalimschy
84058b1506 Added definition for LUA_VERSION_RELEASE_NUM 
LUA_VERSION_RELEASE_NUM is set to the release number of the Lua
interpreter (e.g., 5.4.0 becomes the integer 50400).
 2018-07-11 13:17:46 -03:00
Roberto Ierusalimschy
4d5de1c1fb Fixed bug in line info. when using 'not' operator 
When creating code for a jump on a 'not' condition, the code generator
was removing an instruction (the OP_NOT) without adjusting its
corresponding line information.

This fix also added tests for this case and extra functionality in
the test library to debug line info. structures.
 2018-07-11 12:53:23 -03:00
Roberto Ierusalimschy
9a825f6bb9 In tests of opcodes, avoid coercion in bitwise operation 2018-07-10 14:55:16 -03:00
Roberto Ierusalimschy
941b189d98 Improvements in the manual 
- More precise use of 'argument' x 'parameter'.
- Clarification about what the lexer considers 'letter', 'space',
and 'digit'.
 2018-07-10 13:48:19 -03:00
Roberto Ierusalimschy
21f663d29f Added missing $Id$ to file 'ljumptab.h' 2018-07-10 13:40:30 -03:00
Roberto Ierusalimschy
626cf0581b Generational mode may wait longer after a major collection 
When Lua is building large long-duration structures, frequent small
minor collections just waste time. Trying to avoid this, the
collector will do a larger pause after a major collection when it
does not collect enough garbage (which is a hint that memory is
being used for long-lasting objects).
 2018-07-09 14:22:09 -03:00
Roberto Ierusalimschy
ccf6d098f6 'searchpath' creates less temporary strings 
When creating error messages, package loaders may create dozens of
temporary strings (one or more for each tried template). This change
reduces the number of these strings, and avoid creating some of
them if the search is successful.
 2018-07-09 13:29:08 -03:00
Roberto Ierusalimschy
de2caf7ee4 Bit-library file removed from the project (as it was deprecated) 
This commit only removed the file 'lbitlib.c' from the project; the
makefile already was not using it.
 2018-07-09 12:54:51 -03:00
Roberto Ierusalimschy
b08c9079c5 Opcode names moved to a new header file 
The array with the names of the opcodes was moved to a header file
('lopnames.h'), as it is not used by the Lua kernel. Files that need
that array ('luac.c' and 'ltests.c') include the header file to get
a private (static) copy.
 2018-07-09 12:50:51 -03:00
Roberto Ierusalimschy
06e08c6d05 Fixed bug in OP_IDIVI 
Opocode was using 'luai_numdiv' (float division) instead of
'luai_numidiv' (integer division).
 2018-07-09 12:41:24 -03:00
Roberto Ierusalimschy
7c519dfbd0 Added manual and tests for version 5.4-w2 2018-07-09 12:33:01 -03:00
Roberto Ierusalimschy
f59e6a93c0 opening functions must be exported! 2018-06-19 16:23:57 -03:00
Roberto Ierusalimschy
6683f83b51 several details 2018-06-18 15:25:19 -03:00
Roberto Ierusalimschy
a314409dba in generational mode, an emergency collection can turn any object black 
during any memory allocation +
'luaT_getvarargs' may reallocate the stack, and therefore the top must
be correct.
 2018-06-18 14:58:21 -03:00
Roberto Ierusalimschy
15ce8d0904 in generational mode, an emergency collection can turn any object black 
during any memory allocation.
 2018-06-18 14:57:20 -03:00
Roberto Ierusalimschy
b43300c14f change in 'LUAI_DDEC' to allow variables to be static in 'onelua' 
+ change in 'LUAMOD_API' as opening functions do not need to be global
 2018-06-18 09:51:05 -03:00
Roberto Ierusalimschy
af70905246 no need to check whether libraries and host use the same kernel; 
Lua should work correctly with several copies of the kernel
 2018-06-18 09:08:10 -03:00
Roberto Ierusalimschy
b95e466218 new field 'nilvalue' in struct 'global_State' to avoid the use of 
addresses of static variables
 2018-06-15 16:31:22 -03:00
Roberto Ierusalimschy
d406d3d05f removed unused macros 'isstackindex'/'api_checkstackindex' + 
macro 'api_checkvalidindex' (used only once) expanded and removed
 2018-06-15 14:30:52 -03:00
Roberto Ierusalimschy
b6780ee41b detail (removed unused definition for 'LUA_QS') 2018-06-15 12:49:28 -03:00
Roberto Ierusalimschy
2c107e13a8 warning (comparison between signed and unsigned integers) 2018-06-15 11:18:40 -03:00
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
06127927ff new macro 'ispow2' 2018-06-15 11:13:45 -03:00
Roberto Ierusalimschy
aedcfb9414 type 'Rand64' may not be long long, so it should not use 'LL' in its 
constants
 2018-06-14 15:47:22 -03:00
Roberto Ierusalimschy
992b6d2712 no more 'TESTGRAYBIT' (to free this bit for real uses) 2018-06-11 11:19:50 -03:00
Roberto Ierusalimschy
588dfa4ce5 detail in comment 2018-06-08 16:07:27 -03:00
Roberto Ierusalimschy
6f2b8e21c4 added 'const' to 'Proto*' when possible 2018-06-08 16:06:59 -03:00
Roberto Ierusalimschy
c5dc521d65 added patch for bug 5.3.4-7 2018-06-08 13:23:18 -03:00
Roberto Ierusalimschy
505fc91222 no more 'luaO_nilobject' to avoid comparison of global variable addresses 
(now uses static variables)
 2018-06-01 14:40:38 -03:00
Roberto Ierusalimschy
fb8fa66136 no more 'luaH_emptyobject' and comparisons of addresses of global variables 
(instead, use a different kind of nil to signal the fake entry returned
when a key is not found in a table)
 2018-06-01 13:51:34 -03:00
Roberto Ierusalimschy
b397064955 avoid craches when loading tampered code with NULL as a string constant 2018-06-01 13:45:58 -03:00
Roberto Ierusalimschy
34aa0c5bd7 new macros 'likely'/'unlikely' with hints for jump predictions 
(used only in errors for now)
 2018-05-30 11:25:52 -03:00
Roberto Ierusalimschy
97e394ba18 macro 'luai_makeseed' now controls the whole process of making the seed 2018-05-29 15:02:51 -03:00
Roberto Ierusalimschy
950fbcb971 detail ('l_castU2S' should only be used over lua_Unsigned values) 2018-05-29 15:01:50 -03:00
Roberto Ierusalimschy
b2d4d06428 avoid possible overflows when checking sizes in 'string.unpack' 2018-05-25 10:39:32 -03:00
Roberto Ierusalimschy
3b8dba5279 added patches for two bugs (5.3.4-2 and 5.3.4-3) 2018-05-24 17:25:14 -03:00
Roberto Ierusalimschy
892aff2a07 avoid circular inclusion between ltm.h <-> lstate.h 2018-05-23 11:41:20 -03:00
Roberto Ierusalimschy
02ed0b2c30 in 'luaD_poscall', there is no need to compute 'firstResult' when 'nres==0' 2018-05-22 09:02:36 -03:00
Roberto Ierusalimschy
de53c2ec7e using some weak "randomness" (time and memory address) to initialize 
seeds for the PRNG
 2018-05-16 08:27:59 -03:00
Roberto Ierusalimschy
80bd4a8940 correction on xoshiro256** algorithm 
(should use state[1] instead of state[0] for output)
 2018-05-09 11:54:37 -03:00
Roberto Ierusalimschy
3e7415e846 reorganization of '#if's for sellecting a type for 'Rand64' + 
comments
 2018-05-04 17:01:45 -03:00
Roberto Ierusalimschy
e64e20ac81 minimizing the code ran by 'vmfetch' + no more 'vra' 
(the code is simpler without 'vra' and conversion is a no-op)
 2018-05-02 15:17:59 -03:00
Roberto Ierusalimschy
deb807837c 'luaO_pushvfstring' does not need to reallocate stack 
(less error cases in the API)
 2018-04-25 13:26:20 -03:00
Roberto Ierusalimschy
26eb144541 no need to define 'luaP_opnames' in regular builds 2018-04-19 12:42:41 -03:00
Roberto Ierusalimschy
f9c3d6fdbe use test mode to test the interpreter without jump tables 2018-04-11 13:49:36 -03:00