On 12 Jun '08, at 5:57 AM, santoshb wrote:
I want to know how we can get the file close event using FSEventStreamEventFlags. I have written the code for get the event when user write, open and close the file. But we are not able to distinguish between which event is for which purpose.
You can't. The FSEvents API only tells you what _directories_ have been changed, and only sometime after the changes happen. It doesn't tell you about individual changes, or even what files changed, much less individual open/write/close calls. (The reason is that doing so doesn't scale — the system would choke under the burden of delivering so many notifications.)
Did you read the "File System Events Programming Guide"? Its overview section says:
When your application registers for notification, the file system events daemon will post a notification every time that any file in the monitored directory hierarchy changes. It will also post a notification if the directory itself is modified (for example, if its permissions change or a new file is added). The important point to take away is that the granularity of notifications is at a directory level. It tells you only that something in the directory has changed, but does not tell you what changed.
—Jens
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