2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 #include <afsconfig.h>
11 #include <afs/param.h>
16 #include <sys/types.h>
21 #include <netinet/in.h>
26 #include <sys/fcntl.h>
32 #include <afs/afsint.h>
34 #include <afs/assert.h>
36 #include <afs/ihandle.h>
39 /* returns 0 on success, errno on failure */
41 ReallyRead(DirHandle * file, int block, char *data)
46 fdP = IH_OPEN(file->dirh_handle);
51 if (FDH_SEEK(fdP, block * AFS_PAGESIZE, SEEK_SET) < 0) {
56 code = FDH_READ(fdP, data, AFS_PAGESIZE);
57 if (code != AFS_PAGESIZE) {
69 /* returns 0 on success, errno on failure */
71 ReallyWrite(DirHandle * file, int block, char *data)
74 extern int VolumeChanged;
79 fdP = IH_OPEN(file->dirh_handle);
84 if (FDH_SEEK(fdP, block * AFS_PAGESIZE, SEEK_SET) < 0) {
89 code = FDH_WRITE(fdP, data, AFS_PAGESIZE);
90 if (code != AFS_PAGESIZE) {
103 /* SetSalvageDirHandle:
104 * Create a handle to a directory entry and reference it (IH_INIT).
105 * The handle needs to be dereferenced with the FidZap() routine.
108 SetSalvageDirHandle(DirHandle * dir, afs_int32 volume, afs_int32 device,
111 private SalvageCacheCheck = 1;
112 memset(dir, 0, sizeof(DirHandle));
114 dir->dirh_volume = volume;
115 dir->dirh_device = device;
116 dir->dirh_inode = inode;
117 IH_INIT(dir->dirh_handle, device, volume, inode);
119 /* Always re-read for a new dirhandle */
120 dir->dirh_cacheCheck = SalvageCacheCheck++;
124 FidZap(DirHandle * file)
126 IH_RELEASE(file->dirh_handle);
127 memset(file, 0, sizeof(DirHandle));
131 FidZero(DirHandle * file)
133 memset(file, 0, sizeof(DirHandle));
137 FidEq(DirHandle * afile, DirHandle * bfile)
139 if (afile->dirh_volume != bfile->dirh_volume)
141 if (afile->dirh_device != bfile->dirh_device)
143 if (afile->dirh_cacheCheck != bfile->dirh_cacheCheck)
145 if (afile->dirh_inode != bfile->dirh_inode)
151 FidVolEq(DirHandle * afile, afs_int32 vid)
153 if (afile->dirh_volume != vid)
159 FidCpy(DirHandle * tofile, DirHandle * fromfile)
162 IH_COPY(tofile->dirh_handle, fromfile->dirh_handle);