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-rw-r--r--xlators/performance/stat-prefetch/src/stat-prefetch.c521
1 files changed, 33 insertions, 488 deletions
diff --git a/xlators/performance/stat-prefetch/src/stat-prefetch.c b/xlators/performance/stat-prefetch/src/stat-prefetch.c
index c6bf1e684cf..6a10ac4c42c 100644
--- a/xlators/performance/stat-prefetch/src/stat-prefetch.c
+++ b/xlators/performance/stat-prefetch/src/stat-prefetch.c
@@ -1,508 +1,53 @@
/*
- Copyright (c) 2006-2009 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/>.
+ Copyright (c) 2009-2010 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 _CONFIG_H
-#define _CONFIG_H
-#include "config.h"
-#endif
-
-#include "glusterfs.h"
#include "stat-prefetch.h"
-#include "dict.h"
-#include "xlator.h"
-#include <sys/time.h>
-
-struct sp_cache {
- struct sp_cache *next;
- struct sp_cache *prev;
- pid_t pid;
- long long tv_time;
- char *dirname;
- dir_entry_t entries;
- int32_t count;
- pthread_mutex_t lock;
-};
-
-static void
-stat_prefetch_cache_flush (struct sp_cache *cache, int32_t force)
-{
- struct sp_cache *trav;
- struct timeval tv;
- long long tv_time;
-
- gettimeofday (&tv, NULL);
- tv_time = (tv.tv_usec + (tv.tv_sec * 1000000));
-
- pthread_mutex_lock (&cache->lock);
-
- trav = cache->next;
- while (trav != cache) {
- struct sp_cache *next = trav->next;
- {
- if (tv_time > trav->tv_time || force) {
- gf_log ("stat-prefetch",
- GF_LOG_DEBUG,
- "flush on: %s",
- trav->dirname);
- dir_entry_t *entries;
-
- trav->prev->next = trav->next;
- trav->next->prev = trav->prev;
-
- entries = trav->entries.next;
-
- while (entries) {
- dir_entry_t *nextentry = entries->next;
- {
- free (entries->name);
- free (entries);
- }
- entries = nextentry;
- }
- free (trav->dirname);
- free (trav);
- }
- }
- trav = next;
- }
-
- pthread_mutex_unlock (&cache->lock);
-}
-
-static int32_t
-stat_prefetch_cache_fill (struct sp_cache *cache,
- pid_t pid,
- char *dirname,
- dir_entry_t *entries)
-{
- struct sp_cache *trav;
- struct timeval tv;
-
- pthread_mutex_unlock (&cache->lock);
- trav = cache->next;
- while (trav != cache) {
- // if (trav->pid == pid && !strcmp (trav->dirname, dirname)) {
- if (!strcmp (trav->dirname, dirname)) {
- break;
- }
- trav = trav->next;
- }
-
- if (trav == cache) {
- trav = CALLOC (1, sizeof (*trav));
- ERR_ABORT (trav);
- trav->pid = pid;
- trav->dirname = dirname;
-
- trav->prev = cache->prev;
- trav->next = cache;
- trav->next->prev = trav;
- trav->prev->next = trav;
- } else {
- free (dirname);
- }
-
- while (trav->entries.next) {
- dir_entry_t *tmp = trav->entries.next;
-
- trav->entries.next = trav->entries.next->next;
- free (tmp->name);
- free (tmp);
- }
- trav->entries.next = entries->next;
- entries->next = NULL;
-
- gettimeofday (&tv, NULL);
- trav->tv_time = (tv.tv_usec + (tv.tv_sec * 1000000)) + cache->tv_time;
-
- pthread_mutex_unlock (&cache->lock);
- return 0;
-}
-
-static int32_t
-stat_prefetch_cache_lookup (struct sp_cache *cache,
- pid_t pid,
- const char *path,
- struct stat *buf)
-{
- struct sp_cache *trav;
- char *dirname = strdup (path);
- char *filename = strrchr (dirname, '/');
- dir_entry_t *entries;
- dir_entry_t *prev = NULL;
-
- *filename = '\0';
- filename ++;
-
- pthread_mutex_lock (&cache->lock);
- trav = cache->next;
- while (trav != cache) {
- // if ((trav->pid == pid) && !strcmp (dirname, trav->dirname))
- if (!strcmp (dirname, trav->dirname))
- break;
- trav = trav->next;
- }
- if (trav == cache) {
- free (dirname);
- pthread_mutex_unlock (&cache->lock);
- return -1;
- }
-
- entries = trav->entries.next;
- prev = &trav->entries;
- while (entries) {
- if (!strcmp (entries->name, filename))
- break;
- prev = entries;
- entries = entries->next;
- }
- if (!entries) {
- free (dirname);
- pthread_mutex_unlock (&cache->lock);
- return -1;
- }
-
- *buf = entries->buf;
- prev->next = entries->next;
- free (entries->name);
- free (entries);
- free (dirname);
-
- pthread_mutex_unlock (&cache->lock);
-
- return 0;
-}
-
-
-int32_t
-stat_prefetch_readdir_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- dir_entry_t *entries,
- int32_t count)
-{
- char *path = frame->local;
- pid_t pid = frame->root->pid;
- frame->local = NULL;
-
- STACK_UNWIND (frame, op_ret, op_errno, entries, count);
-
- if (op_ret == 0)
- stat_prefetch_cache_fill (this->private,
- pid,
- path,
- entries);
- else
- free (path);
-
- return 0;
-}
-
-int32_t
-stat_prefetch_readdir (call_frame_t *frame,
- xlator_t *this,
- const char *path)
-{
- stat_prefetch_cache_flush (this->private, 0);
-
- frame->local = strdup (path);
- STACK_WIND (frame,
- stat_prefetch_readdir_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->readdir,
- path);
- return 0;
-}
-
-
-int32_t
-stat_prefetch_getattr_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct stat *buf)
-{
- STACK_UNWIND (frame, op_ret, op_errno, buf);
- return 0;
-}
-
-int32_t
-stat_prefetch_getattr (call_frame_t *frame,
- struct xlator *this,
- const char *path)
-{
- struct stat buf;
- pid_t pid = frame->root->pid;
- stat_prefetch_cache_flush (this->private, 0);
-
- if (stat_prefetch_cache_lookup (this->private,
- pid,
- path,
- &buf) == 0) {
- STACK_UNWIND (frame, 0, 0, &buf);
- return 0;
- }
-
- STACK_WIND (frame,
- stat_prefetch_getattr_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->getattr,
- path);
-
- return 0;
-}
-
-
-int32_t
-stat_prefetch_unlink_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno)
-{
- STACK_UNWIND (frame, op_ret, op_errno);
- return 0;
-}
-
-int32_t
-stat_prefetch_unlink (call_frame_t *frame,
- struct xlator *this,
- const char *path)
-{
- stat_prefetch_cache_flush (this->private, 1);
-
- STACK_WIND (frame,
- stat_prefetch_unlink_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->unlink,
- path);
-
- return 0;
-}
-
-
-int32_t
-stat_prefetch_chmod_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct stat *buf)
-{
- STACK_UNWIND (frame, op_ret, op_errno, buf);
- return 0;
-}
-
-int32_t
-stat_prefetch_chmod (call_frame_t *frame,
- struct xlator *this,
- const char *path,
- mode_t mode)
-{
- stat_prefetch_cache_flush (this->private, 1);
-
- STACK_WIND (frame,
- stat_prefetch_chmod_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->chmod,
- path,
- mode);
-
- return 0;
-}
-
-
-int32_t
-stat_prefetch_chown_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct stat *buf)
-{
- STACK_UNWIND (frame, op_ret, op_errno, buf);
- return 0;
-}
-
-int32_t
-stat_prefetch_chown (call_frame_t *frame,
- struct xlator *this,
- const char *path,
- uid_t uid,
- gid_t gid)
-{
- stat_prefetch_cache_flush (this->private, 1);
-
- STACK_WIND (frame,
- stat_prefetch_chown_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->chown,
- path,
- uid,
- gid);
-
- return 0;
-}
-
-
-int32_t
-stat_prefetch_utimes_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct stat *buf)
-{
- STACK_UNWIND (frame, op_ret, op_errno, buf);
- return 0;
-}
-
-int32_t
-stat_prefetch_utimes (call_frame_t *frame,
- struct xlator *this,
- const char *path,
- struct timespec *tvp)
-{
- stat_prefetch_cache_flush (this->private, 1);
-
- STACK_WIND (frame,
- stat_prefetch_utimes_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->utimes,
- path,
- tvp);
-
- return 0;
-}
-
-
-int32_t
-stat_prefetch_truncate_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno,
- struct stat *buf)
-{
- STACK_UNWIND (frame, op_ret, op_errno, buf);
- return 0;
-}
-
-int32_t
-stat_prefetch_truncate (call_frame_t *frame,
- struct xlator *this,
- const char *path,
- off_t offset)
-{
- stat_prefetch_cache_flush (this->private, 1);
-
- STACK_WIND (frame,
- stat_prefetch_truncate_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->truncate,
- path,
- offset);
-
- return 0;
-}
-
-
-int32_t
-stat_prefetch_rename_cbk (call_frame_t *frame,
- void *cookie,
- xlator_t *this,
- int32_t op_ret,
- int32_t op_errno)
-{
- STACK_UNWIND (frame, op_ret, op_errno);
- return 0;
-}
-
-int32_t
-stat_prefetch_rename (call_frame_t *frame,
- struct xlator *this,
- const char *oldpath,
- const char *newpath)
-{
- stat_prefetch_cache_flush (this->private, 1);
-
- STACK_WIND (frame,
- stat_prefetch_rename_cbk,
- FIRST_CHILD(this),
- FIRST_CHILD(this)->fops->rename,
- oldpath,
- newpath);
-
- return 0;
-}
int32_t
-init (struct xlator *this)
+init (xlator_t *this)
{
- struct sp_cache *cache;
- dict_t *options = this->options;
+ int32_t ret = -1;
+ if (!this->children || this->children->next) {
+ gf_log ("stat-prefetch",
+ GF_LOG_ERROR,
+ "FATAL: translator %s does not have exactly one child "
+ "node", this->name);
+ goto out;
+ }
- if (!this->children || this->children->next) {
- gf_log ("stat-prefetch",
- GF_LOG_ERROR,
- "FATAL: translator %s does not have exactly one child node",
- this->name);
- return -1;
- }
-
- cache = (void *) CALLOC (1, sizeof (*cache));
- ERR_ABORT (cache);
- cache->next = cache->prev = cache;
-
- cache->tv_time = 1 * 1000000;
-
- if (dict_get (options, "cache-seconds")) {
- cache->tv_time = (data_to_int64 (dict_get (options, "cache-seconds")) *
- 1000000);
- }
-
- pthread_mutex_init (&cache->lock, NULL);
-
- this->private = cache;
- return 0;
+ ret = 0;
+out:
+ return ret;
}
void
-fini (struct xlator *this)
+fini (xlator_t *this)
{
- return;
+ return;
}
struct xlator_fops fops = {
- .getattr = stat_prefetch_getattr,
- .readdir = stat_prefetch_readdir,
- .unlink = stat_prefetch_unlink,
- .chmod = stat_prefetch_chmod,
- .chown = stat_prefetch_chown,
- .rename = stat_prefetch_rename,
- .utimes = stat_prefetch_utimes,
- .truncate = stat_prefetch_truncate,
};
struct xlator_mops mops = {
};
+
+struct xlator_cbks cbks = {
+};
generated by cgit (git 2.34.1) at 2024-11-11 14:13:35 +0000