kiper220/mimalloc
1
0
Fork 0
mirror of https://github.com/microsoft/mimalloc.git synced 2025-05-06 23:39:31 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

improve QNX support

Browse source
This commit is contained in:
Daan 2025-03-06 20:40:52 -08:00
parent 97d440b51d
commit 783c3ba486
1 changed files with 7 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

13
src/prim/unix/prim.c
View file

@ -62,7 +62,14 @@ terms of the MIT license. A copy of the license can be found in the file
#include <sys/syscall.h> #include <sys/syscall.h>
#endif #endif
#if !defined(MADV_DONTNEED) && defined(POSIX_MADV_DONTNEED) // QNX
#define MADV_DONTNEED POSIX_MADV_DONTNEED
#endif
#if !defined(MADV_FREE) && defined(POSIX_MADV_FREE) // QNX
#define MADV_FREE POSIX_MADV_FREE
#endif
//------------------------------------------------------------------------------------ //------------------------------------------------------------------------------------
// Use syscalls for some primitives to allow for libraries that override open/read/close etc. // Use syscalls for some primitives to allow for libraries that override open/read/close etc.
// and do allocation themselves; using syscalls prevents recursion when mimalloc is // and do allocation themselves; using syscalls prevents recursion when mimalloc is
@ -413,11 +420,7 @@ int _mi_prim_commit(void* start, size_t size, bool* is_zero) {
int _mi_prim_decommit(void* start, size_t size, bool* needs_recommit) { int _mi_prim_decommit(void* start, size_t size, bool* needs_recommit) {
int err = 0; int err = 0;
// decommit: use MADV_DONTNEED as it decreases rss immediately (unlike MADV_FREE) // decommit: use MADV_DONTNEED as it decreases rss immediately (unlike MADV_FREE)
#if defined(__QNX__)
err = posix_madvise(start, size, POSIX_MADV_DONTNEED);
#else
err = unix_madvise(start, size, MADV_DONTNEED); err = unix_madvise(start, size, MADV_DONTNEED);
#endif
#if !MI_DEBUG && !MI_SECURE #if !MI_DEBUG && !MI_SECURE
*needs_recommit = false; *needs_recommit = false;
#else #else
@ -449,8 +452,6 @@ int _mi_prim_reset(void* start, size_t size) {
mi_atomic_store_release(&advice, (size_t)MADV_DONTNEED); mi_atomic_store_release(&advice, (size_t)MADV_DONTNEED);
err = unix_madvise(start, size, MADV_DONTNEED); err = unix_madvise(start, size, MADV_DONTNEED);
} }
#elif defined(__QNX__)
int err = posix_madvise(start, size, POSIX_MADV_DONTNEED);
#else #else
int err = unix_madvise(start, size, MADV_DONTNEED); int err = unix_madvise(start, size, MADV_DONTNEED);
#endif #endif