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authorJes Sorensen <Jes.Sorensen@redhat.com>2010-10-26 10:39:19 +0200
committerBlue Swirl <blauwirbel@gmail.com>2010-10-30 08:02:36 +0000
commitc1b0b93b06ab026ef45ae02d0ee7557741910637 (patch)
tree586402746c2e86fe219e409bbf55ef2211eb1f3d /oslib-win32.c
parent9a78eead0c74333a394c0f7bbfc4423ac746fcd5 (diff)
Move QEMU OS dependant library functions to OS specific files
This moves library functions used by both QEMU and the QEMU tools, such as qemu-img, qemu-nbd etc. from osdep.c to oslib-{posix,win32}.c In addition it introduces oslib-obj.y to the Makefile set to be included by the various targets, instead of relying on these library functions magically getting included via block-obj-y. Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
Diffstat (limited to 'oslib-win32.c')
-rw-r--r--oslib-win32.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/oslib-win32.c b/oslib-win32.c
new file mode 100644
index 0000000000..3b5245d127
--- /dev/null
+++ b/oslib-win32.c
@@ -0,0 +1,73 @@
+/*
+ * os-win32.c
+ *
+ * Copyright (c) 2003-2008 Fabrice Bellard
+ * Copyright (c) 2010 Red Hat, Inc.
+ *
+ * QEMU library functions for win32 which are shared between QEMU and
+ * the QEMU tools.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+#include <windows.h>
+#include "config-host.h"
+#include "sysemu.h"
+#include "trace.h"
+
+static void *oom_check(void *ptr)
+{
+ if (ptr == NULL) {
+ fprintf(stderr, "Failed to allocate memory: %lu\n", GetLastError());
+ abort();
+ }
+ return ptr;
+}
+
+void *qemu_memalign(size_t alignment, size_t size)
+{
+ void *ptr;
+
+ if (!size) {
+ abort();
+ }
+ ptr = oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
+ trace_qemu_memalign(alignment, size, ptr);
+ return ptr;
+}
+
+void *qemu_vmalloc(size_t size)
+{
+ void *ptr;
+
+ /* FIXME: this is not exactly optimal solution since VirtualAlloc
+ has 64Kb granularity, but at least it guarantees us that the
+ memory is page aligned. */
+ if (!size) {
+ abort();
+ }
+ ptr = oom_check(VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE));
+ trace_qemu_vmalloc(size, ptr);
+ return ptr;
+}
+
+void qemu_vfree(void *ptr)
+{
+ trace_qemu_vfree(ptr);
+ VirtualFree(ptr, 0, MEM_RELEASE);
+}