blob: 554a5ecd074202b0e8fd32a04b21b7b66662fa0e [file] [log] [blame]
// Copyright 2017 Google Inc. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "starboard/memory.h"
#include <windows.h>
#include "starboard/log.h"
#include "starboard/shared/starboard/memory_reporter_internal.h"
void* SbMemoryMap(int64_t size_bytes, int flags, const char* name) {
SB_UNREFERENCED_PARAMETER(name);
if (size_bytes == 0) {
return SB_MEMORY_MAP_FAILED;
}
ULONG protect = PAGE_NOACCESS;
// |flags| is a bitmask of SbMemoryMapFlags, but |protect| is not a bitmask.
switch (flags) {
case kSbMemoryMapProtectRead:
protect = PAGE_READONLY;
break;
case kSbMemoryMapProtectWrite:
// Windows does not provide write only mode privileges
// are escalated to read/write.
case kSbMemoryMapProtectReadWrite:
protect = PAGE_READWRITE;
break;
default:
SB_NOTREACHED();
}
void* memory = VirtualAllocFromApp(NULL, size_bytes, MEM_COMMIT, protect);
if (PAGE_READONLY != protect) {
SbMemoryReporterReportMappedMemory(memory, size_bytes);
}
return memory;
}