[Libsysio-commit] HEAD: libsysio/misc fhi.c fhi.h
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[Libsysio-commit] HEAD: libsysio/misc fhi.c fhi.h
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From: Lee W. <lw...@us...> - 2009-02-04 20:07:29
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Update of /cvsroot/libsysio/libsysio/misc In directory ddv4jf1.ch3.sourceforge.com:/tmp/cvs-serv1058/misc Added Files: fhi.c fhi.h Log Message: A new API, built when --with-file-handle-interface is set to yes, is available with this deposit. The API allows operation by handles derived from exported volumes. At this point, it's not incredibly well tested. What is tested is the export/unexport functionality and the root_of, lookup, and stat functions. Hopefully, this will mature quickly. Not yet included is the ability to use credentials other than the caller's from it's process credentials. That ability should be here soon. --- NEW FILE --- /* * This Cplant(TM) source code is the property of Sandia National * Laboratories. * * This Cplant(TM) source code is copyrighted by Sandia National * Laboratories. * * The redistribution of this Cplant(TM) source code is subject to the * terms of the GNU Lesser General Public License * (see cit/LGPL or http://www.gnu.org/licenses/lgpl.html) * * Cplant(TM) Copyright 1998-2009 Sandia Corporation. * Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive * license for use of this work by or on behalf of the US Government. * Export of this program may require a license from the United States * Government. */ /* [...1030 lines suppressed...] SYSIO_INTERFACE_ENTER(fhi_statvfs64, "%hY", fhi); do { err = find_alias(fhi, &pno); if (err) break; err = PNOP_STATVFS(pno, buf); P_PUT(pno); } while (0); SYSIO_INTERFACE_RETURN(err, err, fhi_statvfs64, "%d%lvY", buf, 0); } --- NEW FILE --- /* * This Cplant(TM) source code is the property of Sandia National * Laboratories. * * This Cplant(TM) source code is copyrighted by Sandia National * Laboratories. * * The redistribution of this Cplant(TM) source code is subject to the * terms of the GNU Lesser General Public License * (see cit/LGPL or http://www.gnu.org/licenses/lgpl.html) * * Cplant(TM) Copyright 1998-2009 Sandia Corporation. * Under the terms of Contract DE-AC04-94AL85000, there is a non-exclusive * license for use of this work by or on behalf of the US Government. * Export of this program may require a license from the United States * Government. */ /* * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * Questions or comments about this library should be sent to: * * Lee Ward * Sandia National Laboratories, New Mexico * P.O. Box 5800 * Albuquerque, NM 87185-1319 * * le...@sa... */ struct file_handle_info_export; /* * File handle information contains everything necessary to uniquely * identify a file system object. */ struct file_handle_info { struct file_handle_info_export *fhi_export; /* associated export */ void *fhi_handle; /* opaque handle data */ size_t fhi_handle_len; /* opaque handle len */ }; /* * Set attributes record, used to alter an existing attribute. One sets * the flag, corresponding to the field to be changed, and the field itself. */ struct file_handle_info_sattr { unsigned fhisattr_mode_set : 1, /* set mode */ fhisattr_uid_set : 1, /* set uid */ fhisattr_gid_set : 1, /* set gid */ fhisattr_size_set : 1, /* set file length */ fhisattr_atime_set : 1, /* set last access */ fhisattr_mtime_set : 1; /* set last modify */ mode_t fhisattr_mode; /* desired mode */ uid_t fhisattr_uid; /* desired uid */ gid_t fhisattr_gid; /* desired gid */ off64_t fhisattr_size; /* desired length */ time_t fhisattr_atime; /* desired access */ time_t fhisattr_mtime; /* desired modify */ }; /* * Set an attribute value in the passed buffer. */ #define _FHISATTR_SET(_fhisattr, _n, _v) \ do { \ (_fhisattr)->fhisattr_ ##_n _set = 1; \ (_fhisattr)->fhisattr_ ##_n = (_v); \ } while (0) /* * Helper macros to set both the mask and value in the file handle info set * attribute record. */ #define FHISATTR_SET_MODE(_fhisattr, _v) \ _FHISATTR_SET((_fhisattr), mode, (_v) & 07777) #define FHISATTR_SET_UID(_fhisattr, _v) \ _FHISATTR_SET((_fhisattr), uid, (_v)) #define FHISATTR_SET_GID(_fhisattr, _v) \ _FHISATTR_SET((_fhisattr), gid, (_v)) #define FHISATTR_SET_SIZE(_fhisattr, _v) \ _FHISATTR_SET((_fhisattr), size, (_v)) #define FHISATTR_SET_ATIME(_fhisattr, _v) \ _FHISATTR_SET((_fhisattr), atime, (_v)) #define FHISATTR_SET_MTIME(_fhisattr, _v) \ _FHISATTR_SET((_fhisattr), mtime, (_v)) /* * Clear all attribute values in passed file handle info set attribute record * buffer. */ #define FHISATTR_CLEAR(_fhisattr) \ do { \ FHISATTR_MODE_SET((_fhisattr), 0); \ FHISATTR_UID_SET((_fhisattr), -1); \ FHISATTR_GID_SET((_fhisattr), -1); \ FHISATTR_SIZE_SET((_fhisattr), 0); \ FHISATTR_ATIME_SET((_fhisattr), 0); \ FHISATTR_MTIME_SET((_fhisattr), 0); \ } while (0); /* * Arguments for file handle information directory operations. */ struct file_handle_info_dirop_args { struct file_handle_info *fhida_dir; const char *fhida_path; }; extern int SYSIO_INTERFACE_NAME(fhi_export)(const void *key, size_t keylen, const char *source, unsigned flags, struct file_handle_info_export **fhiexpp); extern int SYSIO_INTERFACE_NAME(fhi_unexport)(struct file_handle_info_export *fhiexp); extern ssize_t SYSIO_INTERFACE_NAME(fhi_root_of)(struct file_handle_info_export *fhiexp, struct file_handle_info *fhi); extern ssize_t SYSIO_INTERFACE_NAME(fhi_iowait)(ioid_t ioid); extern int SYSIO_INTERFACE_NAME(fhi_iodone)(ioid_t ioid); extern int SYSIO_INTERFACE_NAME(fhi_getattr)(struct file_handle_info *fhi, struct stat64 *buf); extern int SYSIO_INTERFACE_NAME(fhi_setattr)(struct file_handle_info *fhi, struct file_handle_info_sattr *fhisattr); extern ssize_t SYSIO_INTERFACE_NAME(fhi_lookup)(struct file_handle_info *parent_fhi, const char *path, unsigned iopmask, struct file_handle_info *result); extern ssize_t SYSIO_INTERFACE_NAME(fhi_readlink)(struct file_handle_info *fhi, char *buf, size_t bufsiz); extern int SYSIO_INTERFACE_NAME(fhi_iread64x)(struct file_handle_info *fhi, const struct iovec *iov, size_t iov_count, const struct xtvec64 *xtv, size_t xtv_count, ioid_t *ioidp); extern int SYSIO_INTERFACE_NAME(fhi_iwrite64x)(struct file_handle_info *fhi, const struct iovec *iov, size_t iov_count, const struct xtvec64 *xtv, size_t xtv_count, ioid_t *ioidp); extern int SYSIO_INTERFACE_NAME(fhi_create)(struct file_handle_info_dirop_args *where, mode_t mode); extern int SYSIO_INTERFACE_NAME(fhi_unlink)(struct file_handle_info_dirop_args *where); extern int SYSIO_INTERFACE_NAME(fhi_rename)(struct file_handle_info_dirop_args *from, struct file_handle_info_dirop_args *to); extern int SYSIO_INTERFACE_NAME(fhi_link)(struct file_handle_info_dirop_args *from, struct file_handle_info_dirop_args *to); extern int SYSIO_INTERFACE_NAME(fhi_symlink)(struct file_handle_info_dirop_args *from, const char *to); extern int SYSIO_INTERFACE_NAME(fhi_mkdir)(struct file_handle_info_dirop_args *where, mode_t mode); extern int SYSIO_INTERFACE_NAME(fhi_rmdir)(struct file_handle_info_dirop_args *where); extern ssize_t SYSIO_INTERFACE_NAME(fhi_getdirents64)(struct file_handle_info *fhi, char *buf, size_t nbytes, off64_t * __restrict basep); extern int SYSIO_INTERFACE_NAME(fhi_statvfs)(struct file_handle_info *fhi, struct statvfs64 *buf); |
