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
13 Institution: The Information Technology Center, Carnegie-Mellon University
17 #include <afsconfig.h>
18 #include <afs/param.h>
23 #include <sys/types.h>
32 #include <sys/fcntl.h>
36 #include <afs/afsint.h>
38 #include <afs/afssyscalls.h>
44 #include "vol_internal.h"
46 /* returns 0 on success, errno on failure */
48 ReallyRead(DirHandle * file, int block, char *data)
54 fdP = IH_OPEN(file->dirh_handle);
59 nBytes = FDH_PREAD(fdP, data, (afs_fsize_t) AFS_PAGESIZE,
60 ((afs_foff_t)block) * AFS_PAGESIZE);
61 if (nBytes != AFS_PAGESIZE) {
73 /* returns 0 on success, errno on failure */
75 ReallyWrite(DirHandle * file, int block, char *data)
83 fdP = IH_OPEN(file->dirh_handle);
88 nBytes = FDH_PWRITE(fdP, data, (afs_fsize_t) AFS_PAGESIZE,
89 ((afs_foff_t)block) * AFS_PAGESIZE);
90 if (nBytes != AFS_PAGESIZE) {
99 *(file->volumeChanged) = 1;
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, Device device,
109 Inode inode, int *volumeChanged)
111 static int SalvageCacheCheck = 1;
112 memset(dir, 0, sizeof(DirHandle));
114 dir->dirh_device = device;
115 dir->dirh_volume = volume;
116 dir->dirh_inode = inode;
117 IH_INIT(dir->dirh_handle, device, volume, inode);
118 /* Always re-read for a new dirhandle */
119 dir->dirh_cacheCheck = SalvageCacheCheck++;
120 dir->volumeChanged = volumeChanged;
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);
169 osi_Panic("%s\n", msg);