bypasscache for ukernel

[openafs.git] / src / afs / afs.h

diff --git a/src/afs/afs.h b/src/afs/afs.h
index 6bf4f0e..984cf8b 100644 (file)
--- a/src/afs/afs.h
+++ b/src/afs/afs.h
@@ -129,10 +129,7 @@ struct sysname_info {
 #define        BOP_FETCH       1       /* parm1 is chunk to get */
 #define        BOP_STORE       2       /* parm1 is chunk to store */
 #define        BOP_PATH        3       /* parm1 is path, parm2 is chunk to fetch */
-
-#if defined(AFS_CACHE_BYPASS)
 #define        BOP_FETCH_NOCACHE       4   /* parms are: vnode ptr, offset, segment ptr, addr, cred ptr */
-#endif
 #ifdef AFS_DARWIN_ENV
 #define        BOP_MOVE        5        /* ptr1 afs_uspc_param ptr2 sname ptr3 dname */
 #endif
@@ -682,7 +679,6 @@ struct SimpleLocks {
 
 /*... to be continued ...  */
 
-#if defined(AFS_CACHE_BYPASS)
 /* vcache (file) cachingStates bits */
 #define FCSDesireBypass   0x1  /* This file should bypass the cache */
 #define FCSBypass         0x2  /* This file is currently NOT being cached */
@@ -696,7 +692,6 @@ struct SimpleLocks {
                                                                                 * lock vcache (it's already locked) */
 #define TRANSSetManualBit              0x4     /* The Transition routine should set FCSManuallySet so that
                                                                         * filename checking does not override pioctl requests */
-#endif /* AFS_CACHE_BYPASS */
 
 #define        CPSIZE      2
 #if defined(AFS_XBSD_ENV) || defined(AFS_DARWIN_ENV)
@@ -893,14 +888,13 @@ struct vcache {
     short flockCount;          /* count of flock readers, or -1 if writer */
     char mvstat;               /* 0->normal, 1->mt pt, 2->root. */
 
-#if defined(AFS_CACHE_BYPASS)
-       char cachingStates;                     /* Caching policies for this file */
-       afs_uint32 cachingTransitions;          /* # of times file has flopped between caching and not */
+    char cachingStates;                        /* Caching policies for this file */
+    afs_uint32 cachingTransitions;             /* # of times file has flopped between caching and not */
+
 #if defined(AFS_LINUX24_ENV)
-       off_t next_seq_offset;  /* Next sequential offset (used by prefetch/readahead) */
-#else
-       off_t next_seq_blk_offset; /* accounted in blocks for Solaris & IRIX */
-#endif
+    off_t next_seq_offset;     /* Next sequential offset (used by prefetch/readahead) */
+#elif defined(AFS_SUN5_ENV) || defined(AFS_SGI65_ENV)
+    off_t next_seq_blk_offset; /* accounted in blocks for Solaris & IRIX */
 #endif
 
 #if    defined(AFS_SUN5_ENV)
@@ -1559,4 +1553,36 @@ struct afssysa {
 extern int Afs_syscall(struct afssysa *uap, rval_t *rvp);
 #endif /* AFS_SUN5_ENV */
 
+/*
+ * Various definitions for osi_sleep and its event hash table
+ * DFBSD and SUNOS have no osi_sleep, and HPUX has its own hack for this stuff
+ */
+#define AFS_EVHASHSIZE 128     /* size of afs_evhasht, must be power of 2 */
+
+typedef struct afs_event {
+    struct afs_event *next;    /* next in hash chain */
+    char *event;               /* lwp event: an address */
+    int refcount;              /* Is it in use? */
+    int seq;                   /* Sequence number: this is incremented
+                                * by wakeup calls; wait will not return until
+                                * it changes */
+#if defined(AFS_AIX_ENV)
+    tid_t cond;
+#elif defined(AFS_DARWIN_ENV)
+# ifdef AFS_DARWIN80_ENV
+    lck_mtx_t *lck;
+    thread_t owner;
+# endif
+    /* no cond member */
+#elif defined(AFS_FBSD_ENV) || defined(AFS_OBSD_ENV)
+    int cond;                  /* "all this gluck should probably be replaced by CVs" */
+#elif defined(AFS_LINUX24_ENV)
+    wait_queue_head_t cond;
+#elif defined(AFS_NBSD_ENV) || defined(AFS_SUN5_ENV) || defined(AFS_SGI_ENV)
+    kcondvar_t cond;           /* Currently associated condition variable */
+#endif
+} afs_event_t;
+
+extern afs_event_t *afs_evhasht[AFS_EVHASHSIZE];       /* Hash table for events */
+
 #endif /* _AFS_H_ */