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Removed lib/system/allocators.nim. seqs_v2 and strs_v2 now uses allocShared0. (#13190)

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* Cleanup, remove lib/system/allocators.nim. seqs_v2 and strs_v2 now use
allocShared0 by default.

* Fixed -d:useMalloc allocShared / reallocShared / deallocShared. These now use the alloc/dealloc/realloc implementation that also takes care of zeroing memory at realloc.

* Removed debug printfs

* Removed unpairedEnvAllocs() from tests/destructor/tnewruntime_misc

* More mmdisp cleanups. The shared allocators do not need to zero memory or throw since the regular ones already do that

* Introduced realloc0 and reallocShared0, these procs are now used by
strs_v2 and seqs_v2. This also allowed the -d:useMalloc allocator to
drop the extra header with allocation length.

* Moved strs_v2/seqs_v2 'allocated' flag into 'cap' field

* Added 'getAllocStats()' to get low level alloc/dealloc counters. Enable with -d:allocStats

* *allocShared implementations for boehm and go allocators now depend on the proper *allocImpl procs
This commit is contained in:
Ico Doornekamp 2020-01-23 14:25:22 +01:00 • committed by Andreas Rumpf
commit b68eb1cad0
21 changed files with 275 additions and 312 deletions
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10
tests/destructor/tbintree2.nim
View file

@ -1,10 +1,9 @@
discard """
cmd: '''nim c --newruntime $file'''
cmd: '''nim c -d:allocStats --newruntime $file'''
output: '''0
3 3 alloc/dealloc pairs: 0'''
(allocCount: 6, deallocCount: 6)'''
"""
import system / allocators
import system / ansi_c
import random
@ -97,7 +96,6 @@ proc main() =
discard
echo res
main()
dumpAllocStats:
main()
let (a, d) = allocCounters()
discard cprintf("%ld %ld alloc/dealloc pairs: %ld\n", a, d, system.allocs)