mirror of
https://github.com/apple/swift.git
synced 2025-12-14 20:36:38 +01:00
fe8618a3d2
The allocator's crimes include: * It uses OS SPI that must not be used by non-OS apps. * It does not play well with memory debugging tools like Instruments. * It does not return memory to the OS in response to memory pressure. * It is less tested than we would like because many configurations inadvertently turn it off (such as running from Xcode). * Its per-thread magazine implementation does not actually work. * Its "try alloc" flag is incompletely implemented and never used. * Its "zero fill" flag is unimplemented and inconsistently used. Swift SVN r20757
35 lines
1.1 KiB
C++
35 lines
1.1 KiB
C++
//===--- Heap.cpp - Swift Language Heap Logic -----------------------------===//
|
|
//
|
|
// This source file is part of the Swift.org open source project
|
|
//
|
|
// Copyright (c) 2014 - 2015 Apple Inc. and the Swift project authors
|
|
// Licensed under Apache License v2.0 with Runtime Library Exception
|
|
//
|
|
// See http://swift.org/LICENSE.txt for license information
|
|
// See http://swift.org/CONTRIBUTORS.txt for the list of Swift project authors
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// Implementations of the Swift heap
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "swift/Runtime/HeapObject.h"
|
|
#include "swift/Runtime/Heap.h"
|
|
#include "Private.h"
|
|
#include "Debug.h"
|
|
#include <stdlib.h>
|
|
|
|
using namespace swift;
|
|
|
|
void *swift::swift_slowAlloc(size_t size, size_t alignMask) {
|
|
// FIXME: use posix_memalign if alignMask is larger than the system guarantee.
|
|
void *p = malloc(size);
|
|
if (!p) swift::crash("Could not allocate memory.");
|
|
return p;
|
|
}
|
|
|
|
void swift::swift_slowDealloc(void *ptr, size_t bytes, size_t alignMask) {
|
|
free(ptr);
|
|
}
|