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Redone the NodeMonitor.h header file to suit our needs (it can now also be

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included from standard C).


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@2471 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2003-01-17 17:43:31 +00:00
parent 51ee67dc8f
commit 31f5d420ed
1 changed files with 50 additions and 57 deletions
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headers/os/storage/NodeMonitor.h
+50 -57
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@@ -1,76 +1,69 @@
/***************************************************************************
//
// File: NodeMonitor.h
//
// Description: The Node Monitor
//
// Copyright 1992-98, Be Incorporated, All Rights Reserved.
//
***************************************************************************/
#ifndef _NODE_MONITOR_H #ifndef _NODE_MONITOR_H
#define _NODE_MONITOR_H #define _NODE_MONITOR_H
/* Node monitor calls for kernel add-ons
**
** Distributed under the terms of the OpenBeOS License.
*/
#ifndef _BE_BUILD_H
#include <BeBuild.h>
#endif
#include <StorageDefs.h> #include <StorageDefs.h>
#include <Node.h> #include <Node.h>
#include <Messenger.h> #include <Messenger.h>
class BLooper;
class BHandler;
_IMPEXP_BE status_t watch_node(const node_ref *node, class BLooper;
uint32 flags, class BHandler;
BMessenger target);
_IMPEXP_BE status_t watch_node(const node_ref *node,
uint32 flags,
const BHandler *handler,
const BLooper *looper = NULL);
_IMPEXP_BE status_t stop_watching(BMessenger target);
_IMPEXP_BE status_t stop_watching(const BHandler *handler,
const BLooper *looper=NULL);
/* Flags for the watch_node() call. /* Flags for the watch_node() call.
* Note that B_WATCH_MOUNT is NOT included in
* B_WATCH_ALL -- the latter is a convenience
* for watching all watchable state changes for
* a specific node. Watching for volumes
* being mounted and unmounted (B_WATCH_MOUNT)
* is in a category by itself.
* *
* BVolumeRoster provides a handy cover for * Note that B_WATCH_MOUNT is NOT included in B_WATCH_ALL.
* volume watching. * You may prefer to use BVolumeRoster for volume watching.
*/ */
enum { enum {
B_STOP_WATCHING = 0x0000, B_STOP_WATCHING = 0x0000,
B_WATCH_NAME = 0x0001, B_WATCH_NAME = 0x0001,
B_WATCH_STAT = 0x0002, B_WATCH_STAT = 0x0002,
B_WATCH_ATTR = 0x0004, B_WATCH_ATTR = 0x0004,
B_WATCH_DIRECTORY = 0x0008, B_WATCH_DIRECTORY = 0x0008,
B_WATCH_ALL = 0x000f, B_WATCH_ALL = 0x000f,
B_WATCH_MOUNT = 0x0010
B_WATCH_MOUNT = 0x0010
}; };
/* When a node monitor notification
* returns to the target, the "opcode" field /* The "opcode" field of the B_NODE_MONITOR notification message you get.
* will hold one of these values. The other *
* fields in the message tell you which * The presence and meaning of the other fields in that message specifying what
* node (or device) changed. See the documentation * exactly caused the notification depend on this value.
* for the names of these other fields.
*/ */
#define B_ENTRY_CREATED 1
#define B_ENTRY_REMOVED 2 #define B_ENTRY_CREATED 1
#define B_ENTRY_MOVED 3 #define B_ENTRY_REMOVED 2
#define B_STAT_CHANGED 4 #define B_ENTRY_MOVED 3
#define B_ATTR_CHANGED 5 #define B_STAT_CHANGED 4
#define B_DEVICE_MOUNTED 6 #define B_ATTR_CHANGED 5
#define B_DEVICE_UNMOUNTED 7 #define B_DEVICE_MOUNTED 6
#define B_DEVICE_UNMOUNTED 7
#endif /* C++ callable Prototypes
*
* Since you are not able to parse BMessages from plain C, there is no
* API exported.
*/
#ifdef __cplusplus
extern status_t watch_node(const node_ref *node, uint32 flags, BMessenger target);
extern status_t watch_node(const node_ref *node, uint32 flags,
const BHandler *handler,
const BLooper *looper = NULL);
extern status_t stop_watching(BMessenger target);
extern status_t stop_watching(const BHandler *handler, const BLooper *looper = NULL);
#endif /* __cplusplus */
#endif /* _NODE_MONITOR_H*/