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[Qemu-devel] [PATCH 7/8] add Win32 implementation of event notifiers
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 7/8] add Win32 implementation of event notifiers |
Date: |
Wed, 26 May 2010 16:09:37 +0200 |
Signed-off-by: Paolo Bonzini <address@hidden>
---
Compile-tested only. iothread is broken anyway on Win32
due to missing implementation of qemu-threads.
event_notifier.c | 33 +++++++++++++++++++++++++++++++++
event_notifier.h | 8 ++++++++
2 files changed, 41 insertions(+), 0 deletions(-)
diff --git a/event_notifier.c b/event_notifier.c
index a33f3c5..0705dc5 100644
--- a/event_notifier.c
+++ b/event_notifier.c
@@ -11,11 +11,13 @@
*/
#include "qemu-common.h"
+#include "sysemu.h"
#include "event_notifier.h"
#include "qemu-char.h"
int event_notifier_init(EventNotifier *e, int active)
{
+#ifndef _WIN32
int fds[2];
int err;
if (qemu_eventfd (fds) < 0)
@@ -39,27 +41,50 @@ fail:
close(fds[0]);
close(fds[1]);
return err;
+#else
+ e->event = CreateEvent(NULL, FALSE, FALSE, NULL);
+ assert(e->event);
+ return 0;
+#endif
}
void event_notifier_cleanup(EventNotifier *e)
{
+#ifndef _WIN32
close(e->rfd);
close(e->wfd);
+#else
+ CloseHandle(e->event);
+#endif
}
int event_notifier_get_fd(EventNotifier *e)
{
+#ifndef _WIN32
return e->wfd;
+#else
+ abort();
+#endif
}
int event_notifier_set_handler(EventNotifier *e,
EventNotifierHandler *handler)
{
+#ifndef _WIN32
return qemu_set_fd_handler(e->rfd, (IOHandler *)handler, NULL, e);
+#else
+ if (handler) {
+ return qemu_add_wait_object(e->event, (IOHandler *)handler, e);
+ } else {
+ qemu_del_wait_object(e->event, (IOHandler *)handler, e);
+ return 0;
+ }
+#endif
}
int event_notifier_set(EventNotifier *e)
{
+#ifndef _WIN32
static const uint64_t value = 1;
ssize_t ret;
@@ -72,10 +97,15 @@ int event_notifier_set(EventNotifier *e)
return -1;
}
return 0;
+#else
+ SetEvent(e->event);
+ return 0;
+#endif
}
int event_notifier_test_and_clear(EventNotifier *e)
{
+#ifndef _WIN32
int value;
ssize_t len;
char buffer[512];
@@ -88,4 +118,7 @@ int event_notifier_test_and_clear(EventNotifier *e)
} while ((len == -1 && errno == EINTR) || len == sizeof(buffer));
return value;
+#else
+ return WaitForSingleObject(e->event, 0) == WAIT_OBJECT_0;
+#endif
}
diff --git a/event_notifier.h b/event_notifier.h
index ff9d6f2..f3c272a 100644
--- a/event_notifier.h
+++ b/event_notifier.h
@@ -3,9 +3,17 @@
#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 *);
--
1.6.6.1
- [Qemu-devel] [PATCH 0/8] Make event_notifier more useful and more used, Paolo Bonzini, 2010/05/26
- [Qemu-devel] [PATCH 6/8] enable event_notifier to use pipes, Paolo Bonzini, 2010/05/26
- [Qemu-devel] [PATCH 7/8] add Win32 implementation of event notifiers,
Paolo Bonzini <=
- [Qemu-devel] [PATCH 1/8] move event_notifier into the main directory, Paolo Bonzini, 2010/05/26
- [Qemu-devel] [PATCH 3/8] remove event_notifier_test, Paolo Bonzini, 2010/05/26
- [Qemu-devel] [PATCH 5/8] add and use event_notifier_set_handler, Paolo Bonzini, 2010/05/26
- [Qemu-devel] [PATCH 4/8] add and use virtqueue_from_guest_notifier, Paolo Bonzini, 2010/05/26
- [Qemu-devel] [PATCH 8/8] change ioevent to use event notifiers, Paolo Bonzini, 2010/05/26
- [Qemu-devel] [PATCH 2/8] add event_notifier_set, Paolo Bonzini, 2010/05/26
- [Qemu-devel] Re: [PATCH 0/8] Make event_notifier more useful and more used, Michael S. Tsirkin, 2010/05/27