77 lines
1.9 KiB
C
77 lines
1.9 KiB
C
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/***************************************************************************
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//
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// File: NodeMonitor.h
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//
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// Description: The Node Monitor
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//
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// Copyright 1992-98, Be Incorporated, All Rights Reserved.
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//
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***************************************************************************/
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#ifndef _NODE_MONITOR_H
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#define _NODE_MONITOR_H
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#ifndef _BE_BUILD_H
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#include <BeBuild.h>
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#endif
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#include <StorageDefs.h>
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#include <Node.h>
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#include <Messenger.h>
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class BLooper;
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class BHandler;
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_IMPEXP_BE status_t watch_node(const node_ref *node,
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uint32 flags,
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BMessenger target);
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_IMPEXP_BE status_t watch_node(const node_ref *node,
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uint32 flags,
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const BHandler *handler,
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const BLooper *looper = NULL);
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_IMPEXP_BE status_t stop_watching(BMessenger target);
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_IMPEXP_BE status_t stop_watching(const BHandler *handler,
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const BLooper *looper=NULL);
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/* Flags for the watch_node() call.
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* Note that B_WATCH_MOUNT is NOT included in
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* B_WATCH_ALL -- the latter is a convenience
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* for watching all watchable state changes for
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* a specific node. Watching for volumes
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* being mounted and unmounted (B_WATCH_MOUNT)
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* is in a category by itself.
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*
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* BVolumeRoster provides a handy cover for
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* volume watching.
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*/
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enum {
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B_STOP_WATCHING = 0x0000,
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B_WATCH_NAME = 0x0001,
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B_WATCH_STAT = 0x0002,
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B_WATCH_ATTR = 0x0004,
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B_WATCH_DIRECTORY = 0x0008,
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B_WATCH_ALL = 0x000f,
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B_WATCH_MOUNT = 0x0010
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};
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/* When a node monitor notification
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* returns to the target, the "opcode" field
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* will hold one of these values. The other
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* fields in the message tell you which
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* node (or device) changed. See the documentation
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* for the names of these other fields.
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*/
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#define B_ENTRY_CREATED 1
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#define B_ENTRY_REMOVED 2
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#define B_ENTRY_MOVED 3
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#define B_STAT_CHANGED 4
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#define B_ATTR_CHANGED 5
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#define B_DEVICE_MOUNTED 6
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#define B_DEVICE_UNMOUNTED 7
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#endif
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