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-rw-r--r--xlators/cluster/map/src/map-helper.c343
1 files changed, 0 insertions, 343 deletions
diff --git a/xlators/cluster/map/src/map-helper.c b/xlators/cluster/map/src/map-helper.c
deleted file mode 100644
index c5f828ae6d1..00000000000
--- a/xlators/cluster/map/src/map-helper.c
+++ /dev/null
@@ -1,343 +0,0 @@
-/*
- Copyright (c) 2009-2012 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.
-*/
-#include "xlator.h"
-#include "map.h"
-
-
-xlator_t *
-map_subvol_next (xlator_t *this, xlator_t *prev)
-{
- map_private_t *priv = NULL;
- xlator_t *next = NULL;
- int i = 0;
-
- priv = this->private;
-
- for (i = 0; i < priv->child_count; i++) {
- if (priv->xlarray[i].xl == prev) {
- if ((i + 1) < priv->child_count)
- next = priv->xlarray[i + 1].xl;
- break;
- }
- }
-
- return next;
-}
-
-int
-map_subvol_cnt (xlator_t *this, xlator_t *subvol)
-{
- int i = 0;
- int ret = -1;
- map_private_t *priv = NULL;
-
- priv = this->private;
-
- for (i = 0; i < priv->child_count; i++) {
- if (subvol == priv->xlarray[i].xl) {
- ret = i;
- break;
- }
- }
-
- return ret;
-}
-
-int
-map_itransform (xlator_t *this, xlator_t *subvol, uint64_t x, uint64_t *y_p)
-{
- map_private_t *priv = NULL;
- int cnt = 0;
- int max = 0;
- uint64_t y = 0;
-
- if (x == ((uint64_t) -1)) {
- y = (uint64_t) -1;
- goto out;
- }
-
- priv = this->private;
-
- max = priv->child_count;
- cnt = map_subvol_cnt (this, subvol);
-
- y = ((x * max) + cnt);
-
-out:
- if (y_p)
- *y_p = y;
-
- return 0;
-}
-
-
-int
-map_deitransform (xlator_t *this, uint64_t y, xlator_t **subvol_p,
- uint64_t *x_p)
-{
- int cnt = 0;
- int max = 0;
- uint64_t x = 0;
- xlator_t *subvol = 0;
- map_private_t *priv = NULL;
-
- priv = this->private;
- max = priv->child_count;
-
- cnt = y % max;
- x = y / max;
-
- subvol = priv->xlarray[cnt].xl;
-
- if (subvol_p)
- *subvol_p = subvol;
-
- if (x_p)
- *x_p = x;
-
- return 0;
-}
-
-
-xlator_t *
-get_mapping_subvol_from_path (xlator_t *this, const char *path)
-{
- map_private_t *priv = NULL;
- struct map_pattern *map = NULL;
-
- /* To make sure we handle '/' properly */
- if (!strcmp (path, "/"))
- return NULL;
-
- priv = this->private;
-
- map = priv->map;
- while (map) {
- if (!strncmp (map->directory, path, map->dir_len)) {
- if ((path[map->dir_len] == '/') ||
- (path[map->dir_len] == '\0')) {
- return map->xl;
- }
- }
-
- map = map->next;
- }
-
- return priv->default_xl;
-}
-
-xlator_t *
-get_mapping_subvol_from_ctx (xlator_t *this, inode_t *inode)
-{
- uint64_t subvol = 0;
- int ret = -1;
-
- ret = inode_ctx_get (inode, this, &subvol);
- if (ret != 0)
- return NULL;
-
- return (xlator_t *)(long)subvol;
-}
-
-int
-check_multiple_volume_entry (xlator_t *this,
- xlator_t *subvol)
-{
- int ret = -1;
- int idx = 0;
- map_private_t *priv = NULL;
-
- priv = this->private;
-
- for (idx = 0; idx < priv->child_count; idx++) {
- if (priv->xlarray[idx].xl == subvol) {
- if (priv->xlarray[idx].mapped) {
- gf_log (this->name, GF_LOG_ERROR,
- "subvolume '%s' is already mapped",
- subvol->name);
- goto out;
- }
- priv->xlarray[idx].mapped = 1;
- ret = 0;
- goto out;
- }
- }
-
- gf_log (this->name, GF_LOG_ERROR,
- "subvolume '%s' is not found",
- subvol->name);
-
- out:
- return ret;
-}
-
-int
-verify_dir_and_assign_subvol (xlator_t *this,
- const char *directory,
- const char *subvol)
-{
- int default_flag = 0;
- int ret = -1;
- int idx = 0;
- map_private_t *priv = NULL;
- xlator_list_t *trav = NULL;
- struct map_pattern *tmp_map = NULL;
-
- priv = this->private;
-
- /* check if directory is valid, ie, its a top level dir, and
- * not includes a '*' in it.
- */
- if (!strcmp ("*", directory)) {
- default_flag = 1;
- } else {
- if (directory[0] != '/') {
- gf_log (this->name, GF_LOG_ERROR,
- "map takes absolute path, starting with '/'. "
- "not '%s'", directory);
- goto out;
- }
- for (idx = 1; idx < (strlen (directory) - 1); idx++) {
- if (directory[idx] == '/') {
- gf_log (this->name, GF_LOG_ERROR,
- "map takes only top level directory, "
- "not '%s'", directory);
- goto out;
- }
- }
- }
-
- /* Assign proper subvolume */
- trav = this->children;
- while (trav) {
- if (!strcmp (trav->xlator->name, subvol)) {
-
- /* Check if there is another directory for
- * same volume, if yes, return error.
- */
- ret = check_multiple_volume_entry (this,
- trav->xlator);
- if (ret != 0) {
- goto out;
- }
-
- ret = 0;
- if (default_flag) {
- if (priv->default_xl) {
- ret = -1;
- gf_log (this->name, GF_LOG_ERROR,
- "'*' specified more than "
- "once. don't confuse me!!!");
- }
-
- priv->default_xl = trav->xlator;
- goto out;
- }
-
- tmp_map = GF_CALLOC (1, sizeof (struct map_pattern),
- gf_map_mt_map_pattern);
- tmp_map->xl = trav->xlator;
- tmp_map->dir_len = strlen (directory);
-
- /* make sure that the top level directory starts
- * with '/' and ends without '/'
- */
- tmp_map->directory = gf_strdup (directory);
- if (directory[tmp_map->dir_len - 1] == '/') {
- tmp_map->dir_len--;
- }
-
- if (!priv->map)
- priv->map = tmp_map;
- else {
- struct map_pattern *trav_map = NULL;
- trav_map = priv->map;
- while (trav_map->next)
- trav_map = trav_map->next;
- trav_map->next = tmp_map;
- }
-
- goto out;
- }
-
- trav = trav->next;
- }
-
- gf_log (this->name, GF_LOG_ERROR,
- "map volume '%s' is not proper subvolume", subvol);
-
- out:
- return ret;
-}
-
-int
-assign_default_subvol (xlator_t *this, const char *default_xl)
-{
- int ret = -1;
- map_private_t *priv = NULL;
- xlator_list_t *trav = NULL;
-
- priv = this->private;
- trav = this->children;
-
- while (trav) {
- if (!strcmp (trav->xlator->name, default_xl)) {
- ret = check_multiple_volume_entry (this,
- trav->xlator);
- if (ret != 0) {
- goto out;
- }
- if (priv->default_xl)
- gf_log (this->name, GF_LOG_WARNING,
- "default-volume option provided, "
- "overriding earlier '*' option");
- priv->default_xl = trav->xlator;
- return 0;
- }
- trav = trav->next;
- }
-
- gf_log (this->name, GF_LOG_ERROR,
- "default-volume value is not an valid subvolume. check again");
- out:
- return -1;
-}
-
-void
-verify_if_all_subvolumes_got_used (xlator_t *this)
-{
- int idx = 0;
- map_private_t *priv = NULL;
-
- priv = this->private;
-
- for (idx = 0; idx < priv->child_count; idx++) {
- if (!priv->xlarray[idx].mapped) {
- if (!priv->default_xl) {
- priv->default_xl = priv->xlarray[idx].xl;
- priv->xlarray[idx].mapped = 1;
- } else {
- gf_log (this->name, GF_LOG_WARNING,
- "subvolume '%s' is not mapped to "
- "any directory",
- priv->xlarray[idx].xl->name);
- }
- }
- }
-
- if (!priv->default_xl) {
- gf_log (this->name, GF_LOG_WARNING,
- "default subvolume not specified, filesystem "
- "may not work properly. Check 'map' translator "
- "documentation for more info");
- }
-
- return ;
-}
generated by cgit (git 2.34.1) at 2024-05-13 06:44:49 +0000