Use common objects for qemu-img and qemu-nbd

Right now, we sprinkle #if defined(QEMU_IMG) && defined(QEMU_NBD) all over the
code.  It's ugly and causes us to have to build multiple object files for
linking against qemu and the tools.

This patch introduces a new file, qemu-tool.c which contains enough for
qemu-img, qemu-nbd, and QEMU to all share the same objects.

This also required getting qemu-nbd to be a bit more Windows friendly.  I also
changed the Windows block-raw to use normal IO instead of overlapping IO since
we don't actually do AIO yet on Windows.  I changed the various #if 0's to
 #if WIN32_AIO to make it easier for someone to eventually fix AIO on Windows.

After this patch, there are no longer any #ifdef's related to qemu-img and
qemu-nbd.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5226 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 27 insertions, 0 deletions

diff --git a/osdep.c b/osdep.c
index a49efba01..683aad0f0 100644
--- a/osdep.c
+++ b/osdep.c
@@ -45,6 +45,8 @@
 #include <malloc.h>
 #endif
 
+#include "qemu_socket.h"
+
 #if defined(_WIN32)
 void *qemu_memalign(size_t alignment, size_t size)
 {
@@ -283,3 +285,28 @@ int qemu_gettimeofday(qemu_timeval *tp)
   return 0;
 }
 #endif /* _WIN32 */
+
+
+#ifdef _WIN32
+void socket_set_nonblock(int fd)
+{
+    unsigned long opt = 1;
+    ioctlsocket(fd, FIONBIO, &opt);
+}
+
+int inet_aton(const char *cp, struct in_addr *ia)
+{
+    uint32_t addr = inet_addr(cp);
+    if (addr == 0xffffffff)
+	return 0;
+    ia->s_addr = addr;
+    return 1;
+}
+#else
+void socket_set_nonblock(int fd)
+{
+    int f;
+    f = fcntl(fd, F_GETFL);
+    fcntl(fd, F_SETFL, f | O_NONBLOCK);
+}
+#endif