diff options
Diffstat (limited to 'xlators/storage/posix/src/posix-inode-handle.h')
| -rw-r--r-- | xlators/storage/posix/src/posix-inode-handle.h | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/xlators/storage/posix/src/posix-inode-handle.h b/xlators/storage/posix/src/posix-inode-handle.h new file mode 100644 index 00000000000..6849276d3db --- /dev/null +++ b/xlators/storage/posix/src/posix-inode-handle.h @@ -0,0 +1,106 @@ +/* + Copyright (c) 2011-2017 Red Hat, Inc. <http://www.redhat.com> + This file is part of GlusterFS. + + This file is licensed to you under your choice of the GNU Lesser + General Public License, version 3 or any later version (LGPLv3 or + later), or the GNU General Public License, version 2 (GPLv2), in all + cases as published by the Free Software Foundation. +*/ +#ifndef _POSIX_INODE_HANDLE_H +#define _POSIX_INODE_HANDLE_H + +#include <limits.h> +#include <sys/types.h> +#include "xlator.h" +#include "gf-dirent.h" +#include "posix.h" + +/* From Open Group Base Specifications Issue 6 */ +#ifndef _XOPEN_PATH_MAX +#define _XOPEN_PATH_MAX 1024 +#endif + +#define TRASH_DIR "landfill" + +#define UUID0_STR "00000000-0000-0000-0000-000000000000" +#define SLEN(str) (sizeof(str) - 1) + +#define LOC_HAS_ABSPATH(loc) (loc && (loc->path) && (loc->path[0] == '/')) +#define LOC_IS_DIR(loc) (loc && (loc->inode) && \ + (loc->inode->ia_type == IA_IFDIR)) +#define MAKE_REAL_PATH(var, this, path) do { \ + size_t path_len = strlen(path); \ + size_t var_len = path_len + POSIX_BASE_PATH_LEN(this) + 1; \ + if (POSIX_PATH_MAX(this) != -1 && \ + var_len >= POSIX_PATH_MAX(this)) { \ + var = alloca (path_len + 1); \ + strcpy (var, (path[0] == '/') ? path + 1 : path); \ + } else { \ + var = alloca (var_len); \ + strcpy (var, POSIX_BASE_PATH(this)); \ + strcpy (&var[POSIX_BASE_PATH_LEN(this)], path); \ + } \ + } while (0) + +#define MAKE_HANDLE_PATH(var, this, gfid, base) do { \ + int __len; \ + __len = posix_handle_path (this, gfid, base, NULL, 0); \ + if (__len <= 0) \ + break; \ + var = alloca (__len); \ + __len = posix_handle_path (this, gfid, base, var, __len); \ + if (__len <= 0) \ + var = NULL; \ + } while (0) + +#define MAKE_INODE_HANDLE(rpath, this, loc, iatt_p) do { \ + if (gf_uuid_is_null (loc->gfid)) { \ + gf_msg (this->name, GF_LOG_ERROR, 0, \ + P_MSG_INODE_HANDLE_CREATE, \ + "null gfid for path %s", (loc)->path); \ + break; \ + } \ + if (LOC_IS_DIR (loc) && LOC_HAS_ABSPATH (loc)) { \ + MAKE_REAL_PATH (rpath, this, (loc)->path); \ + op_ret = posix_pstat (this, (loc)->gfid, rpath, iatt_p); \ + break; \ + } \ + errno = 0; \ + op_ret = posix_istat (this, loc->gfid, NULL, iatt_p); \ + if (errno != ELOOP) { \ + MAKE_HANDLE_PATH (rpath, this, (loc)->gfid, NULL); \ + if (!rpath) { \ + op_ret = -1; \ + gf_msg (this->name, GF_LOG_ERROR, errno, \ + P_MSG_INODE_HANDLE_CREATE, \ + "Failed to create inode handle " \ + "for path %s", (loc)->path); \ + } \ + break; \ + } \ + /* __ret == -1 && errno == ELOOP */ \ + } while (0) + +#define POSIX_ANCESTRY_PATH (1 << 0) +#define POSIX_ANCESTRY_DENTRY (1 << 1) + +int +posix_handle_path (xlator_t *this, uuid_t gfid, const char *basename, char *buf, + size_t len); + +int +posix_make_ancestryfromgfid (xlator_t *this, char *path, int pathsize, + gf_dirent_t *head, int type, uuid_t gfid, + const size_t handle_size, + const char *priv_base_path, + inode_table_t *table, inode_t **parent, + dict_t *xdata, int32_t *op_errno); + +int +posix_handle_init (xlator_t *this); + +int +posix_handle_trash_init (xlator_t *this); + +#endif /* !_POSIX_INODE_HANDLE_H */ |