/*
* Copyright 2000, International Business Machines Corporation and others.
* All Rights Reserved.
- *
+ *
* This software has been released under the terms of the IBM Public
* License. For details, see the LICENSE file in the top-level source
* directory or online at http://www.openafs.org/dl/license10.html
*/
-#ifndef __CM_SCACHE_H_ENV__
-#define __CM_SCACHE_H_ENV__ 1
+#ifndef OPENAFS_WINNT_AFSD_CM_SCACHE_H
+#define OPENAFS_WINNT_AFSD_CM_SCACHE_H 1
#define MOUNTPOINTLEN 1024 /* max path length for symlink; same as AFSPATHMAX */
/* Key used for byte range locking. Each unique key identifies a
unique client per cm_scache_t for the purpose of locking. */
-typedef afs_uint64 cm_key_t;
+typedef struct cm_key {
+ afs_offs_t process_id; /* process IDs can be 64bit on 64bit environments */
+ afs_uint16 session_id;
+ afs_uint64 file_id; /* afs redir uses File Object pointers as file id */
+} cm_key_t;
typedef struct cm_range {
afs_int64 offset;
osi_queue_t q; /* list of all locks [protected by
cm_scacheLock] */
osi_queue_t fileq; /* per-file list of locks [protected
- by scp->mx]*/
-
+ by scp->rw]*/
+
cm_user_t *userp; /* The user to which this lock belongs
to [immutable; held] */
cm_scache_t *scp; /* The scache to which this lock
* cm_scacheLock] */
} cm_file_lock_t;
+#define fileq_to_cm_file_lock_t(q) ((cm_file_lock_t *)((char *) (q) - offsetof(cm_file_lock_t, fileq)))
+
#define CM_FILELOCK_FLAG_DELETED 0x01
#define CM_FILELOCK_FLAG_LOST 0x02
struct cm_scache *nextp; /* next in hash; cm_scacheLock */
struct cm_scache *allNextp; /* next in all scache list; cm_scacheLock */
cm_fid_t fid;
- afs_uint32 flags; /* flags; locked by mx */
+ afs_uint32 flags; /* flags; locked by rw */
/* synchronization stuff */
- osi_mutex_t mx; /* mutex for this structure */
+ osi_rwlock_t rw; /* rwlock for this structure */
osi_rwlock_t bufCreateLock; /* read-locked during buffer creation;
* write-locked to prevent buffers from
* being created during a truncate op, etc.
afs_uint32 unixModeBits; /* unix protection mode bits */
afs_uint32 linkCount; /* link count */
afs_uint64 dataVersion; /* data version */
+ afs_uint64 bufDataVersionLow; /* range of valid cm_buf_t dataVersions */
afs_uint32 owner; /* file owner */
afs_uint32 group; /* file owning group */
cm_user_t *creator; /* user, if new file */
+ /* volume status */
+ time_t volumeCreationDate; /* volume creation date from AFSVolSync */
+
/* pseudo file status */
osi_hyper_t serverLength; /* length known to server */
* the link contents here.
*/
cm_fid_t mountRootFid; /* mounted on root */
- time_t mountRootGen; /* time to update mountRootFidp? */
+ time_t mountRootGen; /* time to update mountRootFid? */
cm_fid_t dotdotFid; /* parent of volume root */
/* callback info */
afs_int32 serverLock; /* current lock we have acquired on
* this file. One of (-1), LockRead
* or LockWrite. [protected by
- * scp->mx]. In the future, this
+ * scp->rw]. In the future, this
* should be replaced by a queue of
* cm_server_lock_t objects which keep
* track of lock type, the user for
afs_uint32 clientLocks; /* number of locks on ::fileLocks that
have CM_FILELOCK_FLAG_CLIENTONLY
set. */
-
- /* volume info */
- struct cm_volume *volp; /* volume info; held reference */
+
+ afs_int32 fsLockCount; /* number of locks held as reported
+ * by the file server in the most
+ * recent fetch status. Updated by
+ * the locks known to have been acquired
+ * or released by this client.
+ */
/* bulk stat progress */
osi_hyper_t bulkStatProgress; /* track bulk stats of large dirs */
Holds queue of
cm_scache_waiter_t
objects. Protected by
- cm_cacheLock. */
+ cm_scacheLock. */
osi_queue_t * waitQueueT; /* locked by cm_scacheLock */
+
+ /* redirector state - protected by scp->rw */
+ osi_queue_t * redirQueueH; /* LRU queue of buffers for this
+ file that are assigned to the
+ afsredir kernel module. */
+ osi_queue_t * redirQueueT;
+ afs_uint32 redirBufCount; /* Number of buffers held by the redirector */
+ time_t redirLastAccess; /* last time redir accessed the vnode */
} cm_scache_t;
+/* dataVersion */
+#define CM_SCACHE_VERSION_BAD 0xFFFFFFFFFFFFFFFF
+
/* mask field - tell what has been modified */
#define CM_SCACHEMASK_CLIENTMODTIME 1 /* client mod time */
#define CM_SCACHEMASK_LENGTH 2 /* length */
#define CM_SCACHEMASK_TRUNCPOS 4 /* truncation position */
/* fileType values */
+#define CM_SCACHETYPE_UNKNOWN 0 /* unknown */
#define CM_SCACHETYPE_FILE 1 /* a file */
#define CM_SCACHETYPE_DIRECTORY 2 /* a dir */
#define CM_SCACHETYPE_SYMLINK 3 /* a symbolic link */
* this is a truncate op. */
#define CM_SCACHEFLAG_INHASH 0x40 /* in the hash table */
#define CM_SCACHEFLAG_BULKSTATTING 0x80 /* doing a bulk stat */
+#define CM_SCACHEFLAG_SIZESETTING 0x100 /* Stabilized; Truncate */
#define CM_SCACHEFLAG_WAITING 0x200 /* waiting for fetch/store
* state to change */
#define CM_SCACHEFLAG_PURERO 0x400 /* read-only (not even backup);
#define CM_SCACHEFLAG_EACCESS 0x200000 /* Bulk Stat returned EACCES */
#define CM_SCACHEFLAG_SMB_FID 0x400000
+#define CM_SCACHEFLAG_LOCAL 0x800000 /* Locally modified */
+#define CM_SCACHEFLAG_BULKREADING 0x1000000/* Bulk read in progress */
+#define CM_SCACHEFLAG_RDR_IN_USE 0x2000000/* in use by Redirector; advisory */
/* sync flags for calls to the server. The CM_SCACHEFLAG_FETCHING,
* CM_SCACHEFLAG_STORING and CM_SCACHEFLAG_SIZESTORING flags correspond to the
#define CM_SCACHESYNC_FORCECB 0x200000/* when calling cm_GetCallback()
* set the force flag */
+#define CM_SCACHESYNC_BULKREAD 0x400000/* reading many buffers */
+
/* flags for cm_RecycleSCache */
#define CM_SCACHE_RECYCLEFLAG_DESTROY_BUFFERS 0x1
* in old info.
*/
#define CM_MERGEFLAG_STOREDATA 2 /* Merge due to storedata op */
-#define CM_MERGEFLAG_DIROP 4 /* Merge due to directory op */
+#define CM_MERGEFLAG_DIROP 4 /* Merge due to directory op */
+#define CM_MERGEFLAG_FETCHDATA 8 /* Merge due to fetchdata op */
/* hash define. Must not include the cell, since the callback revocation code
* doesn't necessarily know the cell in the case of a multihomed server
extern void cm_SyncOpDone(cm_scache_t *, struct cm_buf *, afs_uint32);
-extern void cm_MergeStatus(cm_scache_t * dscp, cm_scache_t * scp,
- struct AFSFetchStatus * statusp,
+extern void cm_MergeStatus(cm_scache_t * dscp, cm_scache_t * scp,
+ struct AFSFetchStatus * statusp,
struct AFSVolSync * volsyncp,
- struct cm_user *userp,
+ struct cm_user *userp,
+ cm_req_t *reqp,
afs_uint32 flags);
extern void cm_AFSFidFromFid(struct AFSFid *, cm_fid_t *);
extern long cm_RecycleSCache(cm_scache_t *scp, afs_int32 flags);
extern void cm_RemoveSCacheFromHashTable(cm_scache_t *scp);
-#endif /* __CM_SCACHE_H_ENV__ */
+
+extern void cm_AdjustScacheLRU(cm_scache_t *scp);
+
+extern int cm_DumpSCache(FILE *outputFile, char *cookie, int lock);
+
+extern void cm_ResetSCacheDirectory(cm_scache_t *scp, afs_int32 locked);
+
+extern cm_scache_t * cm_RootSCachep(cm_user_t *userp, cm_req_t *reqp);
+#endif /* OPENAFS_WINNT_AFSD_CM_SCACHE_H */