X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/a56afec84c545bff8857ec1ebc33a0db038aad37..f968cbbb699423fa252994ff42de77f8671ac7eb:/src/xbt/mallocator.c diff --git a/src/xbt/mallocator.c b/src/xbt/mallocator.c index fa9f5828e8..9b7bd8e8eb 100644 --- a/src/xbt/mallocator.c +++ b/src/xbt/mallocator.c @@ -1,6 +1,6 @@ /* mallocator - recycle objects to avoid malloc() / free() */ -/* Copyright (c) 2006-2014. The SimGrid Team. +/* Copyright (c) 2006-2018. The SimGrid Team. * All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it @@ -13,6 +13,13 @@ #include "xbt/asserts.h" #include "xbt/sysdep.h" +#ifndef MIN +#define MIN(a, b) ((a) < (b) ? (a) : (b)) +#endif +#ifndef MAX +#define MAX(a, b) ((a) > (b) ? (a) : (b)) +#endif + XBT_LOG_NEW_DEFAULT_SUBCATEGORY(xbt_mallocator, xbt, "Mallocators"); /** Implementation note on the mallocators: @@ -46,8 +53,7 @@ static inline void lock_reset(xbt_mallocator_t m) static inline void lock_acquire(xbt_mallocator_t m) { if (initialization_done > 1) { - int *lock = &m->lock; - while (__sync_lock_test_and_set(lock, 1)) + while (__atomic_test_and_set(&m->lock, __ATOMIC_ACQUIRE)) /* nop */; } } @@ -55,7 +61,7 @@ static inline void lock_acquire(xbt_mallocator_t m) static inline void lock_release(xbt_mallocator_t m) { if (initialization_done > 1) - __sync_lock_release(&m->lock); + __atomic_clear(&m->lock, __ATOMIC_RELEASE); } /** @@ -154,8 +160,6 @@ void *xbt_mallocator_get(xbt_mallocator_t m) if (m->current_size <= 0) { /* No object is ready yet. Create a bunch of them to try to group the * mallocs on the same memory pages (to help the cache lines) */ - - /* XBT_DEBUG("Create a new object for mallocator %p (size:%d/%d)", m, m->current_size, m->max_size); */ int i; int amount = MIN(m->max_size / 2, 1000); for (i = 0; i < amount; i++) @@ -164,7 +168,6 @@ void *xbt_mallocator_get(xbt_mallocator_t m) } /* there is at least an available object, now */ - /* XBT_DEBUG("Reuse an old object for mallocator %p (size:%d/%d)", m, m->current_size, m->max_size); */ object = m->objects[--m->current_size]; lock_release(m); } else { @@ -202,14 +205,11 @@ void xbt_mallocator_release(xbt_mallocator_t m, void *object) lock_acquire(m); if (m->current_size < m->max_size) { /* there is enough place to push the object */ - /* XBT_DEBUG("Store deleted object in mallocator %p for further use (size:%d/%d)", - m, m->current_size, m->max_size); */ m->objects[m->current_size++] = object; lock_release(m); } else { lock_release(m); /* otherwise we don't have a choice, we must free the object */ - /* XBT_DEBUG("Free deleted object: mallocator %p is full (size:%d/%d)", m, m->current_size, m->max_size); */ m->free_f(object); } } else {