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[Qemu-devel] [PATCH 01/25] event_notifier: add Win32 implementation
From: |
Paolo Bonzini |
Subject: |
[Qemu-devel] [PATCH 01/25] event_notifier: add Win32 implementation |
Date: |
Fri, 26 Oct 2012 16:05:31 +0200 |
Signed-off-by: Paolo Bonzini <address@hidden>
---
Makefile.objs | 4 ++-
event_notifier.c => event_notifier-posix.c | 0
event_notifier.c => event_notifier-win32.c | 48 +++++++++++++-----------------
event_notifier.h | 17 +++++++++--
qemu-os-win32.h | 1 -
5 file modificati, 38 inserzioni(+), 32 rimozioni(-)
copy event_notifier.c => event_notifier-posix.c (100%)
rename event_notifier.c => event_notifier-win32.c (49%)
diff --git a/Makefile.objs b/Makefile.objs
index 74b3542..a0a3543 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -93,7 +93,9 @@ common-obj-y += bt-host.o bt-vhci.o
common-obj-y += dma-helpers.o
common-obj-y += iov.o acl.o
common-obj-$(CONFIG_POSIX) += compatfd.o
-common-obj-y += notify.o event_notifier.o
+common-obj-y += notify.o
+common-obj-$(CONFIG_POSIX) += event_notifier-posix.o
+common-obj-$(CONFIG_WIN32) += event_notifier-win32.o
common-obj-y += qemu-timer.o qemu-timer-common.o
common-obj-y += qtest.o
common-obj-y += vl.o
diff --git a/event_notifier.c b/event_notifier-posix.c
similarity index 100%
copy from event_notifier.c
copy to event_notifier-posix.c
diff --git a/event_notifier.c b/event_notifier-win32.c
similarity index 49%
rename from event_notifier.c
rename to event_notifier-win32.c
index 2c207e1..c723dad 100644
--- a/event_notifier.c
+++ b/event_notifier-win32.c
@@ -12,56 +12,48 @@
#include "qemu-common.h"
#include "event_notifier.h"
-#include "qemu-char.h"
-
-#ifdef CONFIG_EVENTFD
-#include <sys/eventfd.h>
-#endif
-
-void event_notifier_init_fd(EventNotifier *e, int fd)
-{
- e->fd = fd;
-}
+#include "main-loop.h"
int event_notifier_init(EventNotifier *e, int active)
{
-#ifdef CONFIG_EVENTFD
- int fd = eventfd(!!active, EFD_NONBLOCK | EFD_CLOEXEC);
- if (fd < 0)
- return -errno;
- e->fd = fd;
+ e->event = CreateEvent(NULL, FALSE, FALSE, NULL);
+ assert(e->event);
return 0;
-#else
- return -ENOSYS;
-#endif
}
void event_notifier_cleanup(EventNotifier *e)
{
- close(e->fd);
+ CloseHandle(e->event);
}
-int event_notifier_get_fd(EventNotifier *e)
+HANDLE event_notifier_get_handle(EventNotifier *e)
{
- return e->fd;
+ return e->event;
}
int event_notifier_set_handler(EventNotifier *e,
EventNotifierHandler *handler)
{
- return qemu_set_fd_handler(e->fd, (IOHandler *)handler, NULL, e);
+ 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)
{
- uint64_t value = 1;
- int r = write(e->fd, &value, sizeof(value));
- return r == sizeof(value);
+ SetEvent(e->event);
+ return 0;
}
int event_notifier_test_and_clear(EventNotifier *e)
{
- uint64_t value;
- int r = read(e->fd, &value, sizeof(value));
- return r == sizeof(value);
+ 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 f0ec2f2..b283a49 100644
--- a/event_notifier.h
+++ b/event_notifier.h
@@ -15,18 +15,31 @@
#include "qemu-common.h"
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
struct EventNotifier {
+#ifdef _WIN32
+ HANDLE event;
+#else
int fd;
+#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
diff --git a/qemu-os-win32.h b/qemu-os-win32.h
index 8ba466d..d0e9234 100644
--- a/qemu-os-win32.h
+++ b/qemu-os-win32.h
@@ -28,7 +28,6 @@
#include <windows.h>
#include <winsock2.h>
-#include "main-loop.h"
/* Workaround for older versions of MinGW. */
#ifndef ECONNREFUSED
--
1.7.12.1
- [Qemu-devel] [PATCH 00/25] AioContext & threadpool, Paolo Bonzini, 2012/10/26
- [Qemu-devel] [PATCH 01/25] event_notifier: add Win32 implementation,
Paolo Bonzini <=
- [Qemu-devel] [PATCH 03/25] aio: change qemu_aio_set_fd_handler to return void, Paolo Bonzini, 2012/10/26
- [Qemu-devel] [PATCH 04/25] aio: provide platform-independent API, Paolo Bonzini, 2012/10/26
- [Qemu-devel] [PATCH 05/25] aio: introduce AioContext, move bottom halves there, Paolo Bonzini, 2012/10/26
- [Qemu-devel] [PATCH 07/25] aio: test node->deleted before calling io_flush, Paolo Bonzini, 2012/10/26
- [Qemu-devel] [PATCH 11/25] aio: make AioContexts GSources, Paolo Bonzini, 2012/10/26
- [Qemu-devel] [PATCH 08/25] aio: add non-blocking variant of aio_wait, Paolo Bonzini, 2012/10/26
- [Qemu-devel] [PATCH 06/25] aio: add I/O handlers to the AioContext interface, Paolo Bonzini, 2012/10/26
- [Qemu-devel] [PATCH 02/25] event_notifier: enable it to use pipes, Paolo Bonzini, 2012/10/26
- [Qemu-devel] [PATCH 09/25] aio: prepare for introducing GSource-based dispatch, Paolo Bonzini, 2012/10/26
- [Qemu-devel] [PATCH 12/25] aio: add aio_notify, Paolo Bonzini, 2012/10/26