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[Qemu-devel] [PATCH 02/12] event_notifier: add Win32 implementation
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 02/12] event_notifier: add Win32 implementation |
Date: |
Mon, 16 Jul 2012 12:42:47 +0200 |
The Win32 implementation of EventNotifier is a trivial wrapper
around manual-reset events.
Signed-off-by: Paolo Bonzini <address@hidden>
---
Makefile.objs | 4 +-
event_notifier.c => event_notifier-posix.c | 0
event_notifier-win32.c | 59 ++++++++++++++++++++++++++++
event_notifier.h | 17 +++++++-
4 files changed, 77 insertions(+), 3 deletions(-)
rename event_notifier.c => event_notifier-posix.c (100%)
create mode 100644 event_notifier-win32.c
diff --git a/Makefile.objs b/Makefile.objs
index 625c4d5..ecdfaf9 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -45,6 +45,8 @@ block-obj-y = cutils.o cache-utils.o qemu-option.o module.o
async.o
block-obj-y += nbd.o block.o aio.o aes.o qemu-config.o qemu-progress.o
qemu-sockets.o
block-obj-y += $(coroutine-obj-y) $(qobject-obj-y) $(version-obj-y)
block-obj-$(CONFIG_POSIX) += posix-aio-compat.o
+block-obj-$(CONFIG_POSIX) += event_notifier-posix.o
+block-obj-$(CONFIG_WIN32) += event_notifier-win32.o
block-obj-$(CONFIG_LINUX_AIO) += linux-aio.o
block-obj-y += block/
@@ -90,7 +92,7 @@ common-obj-y += bt-host.o bt-vhci.o
common-obj-y += iov.o acl.o
common-obj-$(CONFIG_POSIX) += compatfd.o
-common-obj-y += notify.o event_notifier.o
+common-obj-y += notify.o
common-obj-y += qemu-timer.o qemu-timer-common.o
common-obj-$(CONFIG_SLIRP) += slirp/
diff --git a/event_notifier.c b/event_notifier-posix.c
similarity index 100%
rename from event_notifier.c
rename to event_notifier-posix.c
diff --git a/event_notifier-win32.c b/event_notifier-win32.c
new file mode 100644
index 0000000..c723dad
--- /dev/null
+++ b/event_notifier-win32.c
@@ -0,0 +1,59 @@
+/*
+ * event notifier support for Win32
+ *
+ * Copyright Red Hat, Inc. 2012
+ *
+ * Authors:
+ * Paolo Bonzini <address@hidden>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu-common.h"
+#include "event_notifier.h"
+#include "main-loop.h"
+
+int event_notifier_init(EventNotifier *e, int active)
+{
+ e->event = CreateEvent(NULL, FALSE, FALSE, NULL);
+ assert(e->event);
+ return 0;
+}
+
+void event_notifier_cleanup(EventNotifier *e)
+{
+ CloseHandle(e->event);
+}
+
+HANDLE event_notifier_get_handle(EventNotifier *e)
+{
+ return e->event;
+}
+
+int event_notifier_set_handler(EventNotifier *e,
+ EventNotifierHandler *handler)
+{
+ if (handler) {
+ return qemu_add_wait_object(e->event, (IOHandler *)handler, e);
+ } else {
+ qemu_del_wait_object(e->event, (IOHandler *)handler, e);
+ return 0;
+ }
+}
+
+int event_notifier_set(EventNotifier *e)
+{
+ SetEvent(e->event);
+ return 0;
+}
+
+int event_notifier_test_and_clear(EventNotifier *e)
+{
+ int ret = WaitForSingleObject(e->event, 0);
+ if (ret == WAIT_OBJECT_0) {
+ ResetEvent(e->event);
+ return true;
+ }
+ return false;
+}
diff --git a/event_notifier.h b/event_notifier.h
index f04d12d..88b57af 100644
--- a/event_notifier.h
+++ b/event_notifier.h
@@ -15,19 +15,32 @@
#include "qemu-common.h"
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
struct EventNotifier {
+#ifdef _WIN32
+ HANDLE event;
+#else
int rfd;
int wfd;
+#endif
};
typedef void EventNotifierHandler(EventNotifier *);
-void event_notifier_init_fd(EventNotifier *, int fd);
int event_notifier_init(EventNotifier *, int active);
void event_notifier_cleanup(EventNotifier *);
-int event_notifier_get_fd(EventNotifier *);
int event_notifier_set(EventNotifier *);
int event_notifier_test_and_clear(EventNotifier *);
int event_notifier_set_handler(EventNotifier *, EventNotifierHandler *);
+#ifdef CONFIG_POSIX
+void event_notifier_init_fd(EventNotifier *, int fd);
+int event_notifier_get_fd(EventNotifier *);
+#else
+HANDLE event_notifier_get_handle(EventNotifier *);
+#endif
+
#endif
--
1.7.10.4
- [Qemu-devel] [PATCH 00/12] Portable thread-pool/AIO, Win32 emulated AIO, Paolo Bonzini, 2012/07/16
- [Qemu-devel] [PATCH 01/12] event_notifier: enable it to use pipes, Paolo Bonzini, 2012/07/16
- [Qemu-devel] [PATCH 02/12] event_notifier: add Win32 implementation,
Paolo Bonzini <=
- [Qemu-devel] [PATCH 04/12] aio: provide platform-independent API, Paolo Bonzini, 2012/07/16
- [Qemu-devel] [PATCH 03/12] main-loop: use event notifiers, Paolo Bonzini, 2012/07/16
- [Qemu-devel] [PATCH 05/12] aio: add Win32 implementation, Paolo Bonzini, 2012/07/16
- [Qemu-devel] [PATCH 06/12] linux-aio: use event notifiers, Paolo Bonzini, 2012/07/16
- [Qemu-devel] [PATCH 07/12] qemu-thread: add QemuSemaphore, Paolo Bonzini, 2012/07/16