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Reviving HARDMEMTESTS

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This commit brings a new implementation for HARDMEMTESTS, which forces
an emergency GC whenever possible. It also fixes some issues detected
with this option:
  - A small bug in lvm.c: a closure could be collected by an emergency
  GC while being initialized.
  - Some tests: a memory address can be immediatly reused after a GC;
  for instance, two consecutive '{}' expressions can return exactly the
  same address, if the first one is not anchored.
This commit is contained in:
Roberto Ierusalimschy 2019-07-18 14:58:15 -03:00
parent 024a6071ca
commit d36a31e673
4 changed files with 35 additions and 15 deletions
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7
testes/api.lua
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@ -354,8 +354,11 @@ assert(to("topointer", nil) == null)
assert(to("topointer", "abc") ~= null)
assert(to("topointer", string.rep("x", 10)) ==
to("topointer", string.rep("x", 10))) -- short strings
assert(to("topointer", string.rep("x", 300)) ~=
to("topointer", string.rep("x", 300))) -- long strings
do -- long strings
local s1 = string.rep("x", 300)
local s2 = string.rep("x", 300)
assert(to("topointer", s1) ~= to("topointer", s2))
end
assert(to("topointer", T.pushuserdata(20)) ~= null)
assert(to("topointer", io.read) ~= null) -- light C function
assert(to("topointer", hfunc) ~= null) -- "heavy" C function