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/*
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 * os-win32.c
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 *
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 * Copyright (c) 2003-2008 Fabrice Bellard
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 * Copyright (c) 2010 Red Hat, Inc.
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 *
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 * QEMU library functions for win32 which are shared between QEMU and
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 * the QEMU tools.
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 *
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
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 * of this software and associated documentation files (the "Software"), to deal
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 * in the Software without restriction, including without limitation the rights
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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 * copies of the Software, and to permit persons to whom the Software is
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 * furnished to do so, subject to the following conditions:
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 *
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 * The above copyright notice and this permission notice shall be included in
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 * all copies or substantial portions of the Software.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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 * THE SOFTWARE.
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 */
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#include <windows.h>
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#include "config-host.h"
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#include "sysemu.h"
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#include "trace.h"
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static void *oom_check(void *ptr)
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{
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    if (ptr == NULL) {
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        fprintf(stderr, "Failed to allocate memory: %lu\n", GetLastError());
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        abort();
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    }
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    return ptr;
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}
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void *qemu_memalign(size_t alignment, size_t size)
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{
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    void *ptr;
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    if (!size) {
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        abort();
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    }
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    ptr = oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
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    trace_qemu_memalign(alignment, size, ptr);
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    return ptr;
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}
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void *qemu_vmalloc(size_t size)
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{
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    void *ptr;
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    /* FIXME: this is not exactly optimal solution since VirtualAlloc
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       has 64Kb granularity, but at least it guarantees us that the
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       memory is page aligned. */
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    if (!size) {
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        abort();
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    }
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    ptr = oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
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    trace_qemu_vmalloc(size, ptr);
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    return ptr;
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}
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void qemu_vfree(void *ptr)
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{
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    trace_qemu_vfree(ptr);
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    VirtualFree(ptr, 0, MEM_RELEASE);
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}