Security-57031.1.35.tar.gz

[apple/security.git] / Security / libsecurity_cdsa_utilities / lib / cssmalloc.cpp

diff --git a/Security/libsecurity_cdsa_utilities/lib/cssmalloc.cpp b/Security/libsecurity_cdsa_utilities/lib/cssmalloc.cpp
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+/*
+ * Copyright (c) 2000-2004,2006,2011,2014 Apple Inc. All Rights Reserved.
+ * 
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+
+//
+// cssmalloc - memory allocation in the CDSA world.
+//
+// Don't eat heavily before inspecting this code.
+//
+#include <security_cdsa_utilities/cssmalloc.h>
+#include <stdlib.h>
+#include <errno.h>
+
+
+
+namespace Security {
+
+
+//
+// CssmMemoryFunctionsAllocators
+//
+void *CssmMemoryFunctionsAllocator::malloc(size_t size) throw(std::bad_alloc)
+{ return functions.malloc(size); }
+
+void CssmMemoryFunctionsAllocator::free(void *addr) throw()
+{ return functions.free(addr); }
+
+void *CssmMemoryFunctionsAllocator::realloc(void *addr, size_t size) throw(std::bad_alloc)
+{ return functions.realloc(addr, size); }
+
+
+//
+// CssmAllocatorMemoryFunctions
+//
+CssmAllocatorMemoryFunctions::CssmAllocatorMemoryFunctions(Allocator &alloc)
+{
+       AllocRef = &alloc;
+       malloc_func = relayMalloc;
+       free_func = relayFree;
+       realloc_func = relayRealloc;
+       calloc_func = relayCalloc;
+}
+
+void *CssmAllocatorMemoryFunctions::relayMalloc(size_t size, void *ref) throw(std::bad_alloc)
+{ return allocator(ref).malloc(size); }
+
+void CssmAllocatorMemoryFunctions::relayFree(void *mem, void *ref) throw()
+{ allocator(ref).free(mem); }
+
+void *CssmAllocatorMemoryFunctions::relayRealloc(void *mem, size_t size, void *ref) throw(std::bad_alloc)
+{ return allocator(ref).realloc(mem, size); }
+
+void *CssmAllocatorMemoryFunctions::relayCalloc(uint32 count, size_t size, void *ref) throw(std::bad_alloc)
+{
+       // Allocator doesn't have a calloc() method
+       void *mem = allocator(ref).malloc(size * count);
+       memset(mem, 0, size * count);
+       return mem;
+}
+
+
+//
+// CssmVector
+//
+
+
+}   // namespace Security