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Diffstat (limited to 'xlators/storage/posix/src/posix.h')
-rw-r--r-- | xlators/storage/posix/src/posix.h | 110 |
1 files changed, 110 insertions, 0 deletions
diff --git a/xlators/storage/posix/src/posix.h b/xlators/storage/posix/src/posix.h new file mode 100644 index 000000000..b162139c9 --- /dev/null +++ b/xlators/storage/posix/src/posix.h @@ -0,0 +1,110 @@ +/* + Copyright (c) 2006, 2007, 2008 Z RESEARCH, Inc. <http://www.zresearch.com> + This file is part of GlusterFS. + + GlusterFS is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published + by the Free Software Foundation; either version 3 of the License, + or (at your option) any later version. + + GlusterFS 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 + General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see + <http://www.gnu.org/licenses/>. +*/ + +#ifndef _POSIX_H +#define _POSIX_H + +#ifndef _CONFIG_H +#define _CONFIG_H +#include "config.h" +#endif + +#include <stdio.h> +#include <unistd.h> +#include <sys/types.h> +#include <dirent.h> + +#ifdef linux +#ifdef __GLIBC__ +#include <sys/fsuid.h> +#else +#include <unistd.h> +#endif +#endif + +#ifdef HAVE_SYS_XATTR_H +#include <sys/xattr.h> +#endif + +#ifdef HAVE_SYS_EXTATTR_H +#include <sys/extattr.h> +#endif + +#include "xlator.h" +#include "inode.h" +#include "compat.h" + +#include "xattr-cache.h" + +/** + * posix_fd - internal structure common to file and directory fd's + */ + +struct posix_fd { + int fd; /* fd returned by the kernel */ + int32_t flags; /* flags for open/creat */ + char * path; /* used by setdents/getdents */ + DIR * dir; /* handle returned by the kernel */ +}; + +struct posix_private { + char *base_path; + int32_t base_path_length; + dev_t base_stdev; + + xattr_cache_t *xattr_cache; + + /* Statistics, provides activity of the server */ + struct xlator_stats stats; + + struct timeval prev_fetch_time; + struct timeval init_time; + + int32_t max_read; /* */ + int32_t max_write; /* */ + int64_t interval_read; /* Used to calculate the max_read value */ + int64_t interval_write; /* Used to calculate the max_write value */ + int64_t read_value; /* Total read, from init */ + int64_t write_value; /* Total write, from init */ + +/* + In some cases, two exported volumes may reside on the same + partition on the server. Sending statvfs info for both + the volumes will lead to erroneous df output at the client, + since free space on the partition will be counted twice. + + In such cases, user can disable exporting statvfs info + on one of the volumes by setting this option. +*/ + gf_boolean_t export_statfs; + + gf_boolean_t o_direct; /* always open files in O_DIRECT mode */ +}; + +#define POSIX_BASE_PATH(this) (((struct posix_private *)this->private)->base_path) + +#define POSIX_BASE_PATH_LEN(this) (((struct posix_private *)this->private)->base_path_length) + +#define MAKE_REAL_PATH(var, this, path) do { \ + var = alloca (strlen (path) + POSIX_BASE_PATH_LEN(this) + 2); \ + strcpy (var, POSIX_BASE_PATH(this)); \ + strcpy (&var[POSIX_BASE_PATH_LEN(this)], path); \ + } while (0) + +#endif /* _POSIX_H */ |