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-rw-r--r--lib/common/EventWatchFilesystemObject.cpp99
1 files changed, 99 insertions, 0 deletions
diff --git a/lib/common/EventWatchFilesystemObject.cpp b/lib/common/EventWatchFilesystemObject.cpp
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+// --------------------------------------------------------------------------
+//
+// File
+// Name: EventWatchFilesystemObject.cpp
+// Purpose: WaitForEvent compatible object for watching directories
+// Created: 12/3/04
+//
+// --------------------------------------------------------------------------
+
+#include "Box.h"
+
+#include <fcntl.h>
+#include <unistd.h>
+
+#include "EventWatchFilesystemObject.h"
+#include "autogen_CommonException.h"
+
+#include "MemLeakFindOn.h"
+
+
+// --------------------------------------------------------------------------
+//
+// Function
+// Name: EventWatchFilesystemObject::EventWatchFilesystemObject(const char *)
+// Purpose: Constructor -- opens the file object
+// Created: 12/3/04
+//
+// --------------------------------------------------------------------------
+EventWatchFilesystemObject::EventWatchFilesystemObject(const char *Filename)
+#ifndef PLATFORM_KQUEUE_NOT_SUPPORTED
+ : mDescriptor(::open(Filename, O_RDONLY /*O_EVTONLY*/, 0))
+#endif
+{
+#ifndef PLATFORM_KQUEUE_NOT_SUPPORTED
+ if(mDescriptor == -1)
+ {
+ THROW_EXCEPTION(CommonException, OSFileOpenError)
+ }
+#else
+ THROW_EXCEPTION(CommonException, KQueueNotSupportedOnThisPlatform)
+#endif
+}
+
+
+// --------------------------------------------------------------------------
+//
+// Function
+// Name: EventWatchFilesystemObject::~EventWatchFilesystemObject()
+// Purpose: Destructor
+// Created: 12/3/04
+//
+// --------------------------------------------------------------------------
+EventWatchFilesystemObject::~EventWatchFilesystemObject()
+{
+ if(mDescriptor != -1)
+ {
+ ::close(mDescriptor);
+ }
+}
+
+
+// --------------------------------------------------------------------------
+//
+// Function
+// Name: EventWatchFilesystemObject::EventWatchFilesystemObject(const EventWatchFilesystemObject &)
+// Purpose: Copy constructor
+// Created: 12/3/04
+//
+// --------------------------------------------------------------------------
+EventWatchFilesystemObject::EventWatchFilesystemObject(const EventWatchFilesystemObject &rToCopy)
+ : mDescriptor(::dup(rToCopy.mDescriptor))
+{
+ if(mDescriptor == -1)
+ {
+ THROW_EXCEPTION(CommonException, OSFileError)
+ }
+}
+
+
+#ifndef PLATFORM_KQUEUE_NOT_SUPPORTED
+// --------------------------------------------------------------------------
+//
+// Function
+// Name: EventWatchFilesystemObject::FillInKEvent(struct kevent &, int)
+// Purpose: For WaitForEvent
+// Created: 12/3/04
+//
+// --------------------------------------------------------------------------
+void EventWatchFilesystemObject::FillInKEvent(struct kevent &rEvent, int Flags) const
+{
+ EV_SET(&rEvent, mDescriptor, EVFILT_VNODE, EV_CLEAR, NOTE_DELETE | NOTE_WRITE, 0, (void*)this);
+}
+#else
+void EventWatchFilesystemObject::FillInPoll(int &fd, short &events, int Flags) const
+{
+ THROW_EXCEPTION(CommonException, KQueueNotSupportedOnThisPlatform)
+}
+#endif
+