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-rw-r--r--xlators/cluster/afr/src/afr-dir-write.c1786
1 files changed, 1786 insertions, 0 deletions
diff --git a/xlators/cluster/afr/src/afr-dir-write.c b/xlators/cluster/afr/src/afr-dir-write.c
new file mode 100644
index 00000000000..87a6e09b5be
--- /dev/null
+++ b/xlators/cluster/afr/src/afr-dir-write.c
@@ -0,0 +1,1786 @@
+/*
+ Copyright (c) 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/>.
+*/
+
+
+#include <libgen.h>
+#include <unistd.h>
+#include <fnmatch.h>
+#include <sys/time.h>
+#include <stdlib.h>
+#include <signal.h>
+
+#ifndef _CONFIG_H
+#define _CONFIG_H
+#include "config.h"
+#endif
+
+#include "glusterfs.h"
+#include "afr.h"
+#include "dict.h"
+#include "xlator.h"
+#include "hashfn.h"
+#include "logging.h"
+#include "stack.h"
+#include "list.h"
+#include "call-stub.h"
+#include "defaults.h"
+#include "common-utils.h"
+#include "compat-errno.h"
+#include "compat.h"
+
+#include "afr.h"
+#include "afr-transaction.h"
+
+
+void
+afr_build_parent_loc (loc_t *parent, loc_t *child)
+{
+ char *tmp = NULL;
+
+ if (!child->parent) {
+ loc_copy (parent, child);
+ return;
+ }
+
+ tmp = strdup (child->path);
+ parent->path = strdup (dirname (tmp));
+ FREE (tmp);
+
+ parent->name = strrchr (parent->path, '/');
+ if (parent->name)
+ parent->name++;
+
+ parent->inode = inode_ref (child->parent);
+ parent->parent = inode_parent (parent->inode, 0, NULL);
+ parent->ino = parent->inode->ino;
+}
+
+
+/* {{{ create */
+
+int
+afr_create_unwind (call_frame_t *frame, xlator_t *this)
+{
+ call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (local->transaction.main_frame) {
+ main_frame = local->transaction.main_frame;
+ }
+ local->transaction.main_frame = NULL;
+ }
+ UNLOCK (&frame->lock);
+
+ if (main_frame)
+ AFR_STACK_UNWIND (main_frame, local->op_ret, local->op_errno,
+ local->cont.create.fd,
+ local->cont.create.inode,
+ &local->cont.create.buf);
+ return 0;
+}
+
+
+int
+afr_create_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno,
+ fd_t *fd, inode_t *inode, struct stat *buf)
+{
+ afr_local_t * local = NULL;
+ afr_private_t * priv = NULL;
+
+ int call_count = -1;
+ int child_index = -1;
+
+ local = frame->local;
+ priv = this->private;
+
+ child_index = (long) cookie;
+
+ LOCK (&frame->lock);
+ {
+ if (child_went_down (op_ret, op_errno))
+ afr_transaction_child_died (frame, this, child_index);
+
+ if (op_ret != -1) {
+ local->op_ret = op_ret;
+
+ if ((local->success_count == 0)
+ || (child_index == priv->read_child)) {
+ local->cont.create.buf = *buf;
+ local->cont.create.buf.st_ino =
+ afr_itransform (buf->st_ino,
+ priv->child_count,
+ child_index);
+ }
+ local->cont.create.inode = inode;
+
+ local->success_count++;
+ }
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0) {
+ local->transaction.unwind (frame, this);
+
+ local->transaction.resume (frame, this);
+ }
+
+ return 0;
+}
+
+
+int
+afr_create_wind (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ int call_count = -1;
+ int i = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ call_count = afr_up_children_count (priv->child_count, local->child_up);
+
+ if (call_count == 0) {
+ local->transaction.resume (frame, this);
+ return 0;
+ }
+
+ local->call_count = call_count;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_create_wind_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->create,
+ &local->loc,
+ local->cont.create.flags,
+ local->cont.create.mode,
+ local->cont.create.fd);
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+}
+
+
+int
+afr_create_done (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t * local = NULL;
+
+ local = frame->local;
+
+ local->transaction.unwind (frame, this);
+
+ AFR_STACK_DESTROY (frame);
+
+ return 0;
+}
+
+
+int
+afr_create (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, int32_t flags, mode_t mode, fd_t *fd)
+{
+ afr_private_t * priv = NULL;
+ afr_local_t * local = NULL;
+ call_frame_t * transaction_frame = NULL;
+
+ int ret = -1;
+
+ int op_ret = -1;
+ int op_errno = 0;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (this->private, out);
+
+ priv = this->private;
+
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "out of memory :(");
+ goto out;
+ }
+
+ ALLOC_OR_GOTO (local, afr_local_t, out);
+
+ ret = AFR_LOCAL_INIT (local, priv);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
+ }
+
+ transaction_frame->local = local;
+
+ loc_copy (&local->loc, loc);
+
+ local->cont.create.flags = flags;
+ local->cont.create.mode = mode;
+ local->cont.create.fd = fd_ref (fd);
+
+ local->transaction.fop = afr_create_wind;
+ local->transaction.done = afr_create_done;
+ local->transaction.unwind = afr_create_unwind;
+
+ afr_build_parent_loc (&local->transaction.parent_loc, loc);
+
+ local->transaction.main_frame = frame;
+ local->transaction.basename = AFR_BASENAME (loc->path);
+ local->transaction.pending = AFR_ENTRY_PENDING;
+
+ afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+
+ op_ret = 0;
+out:
+ if (op_ret == -1) {
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+ AFR_STACK_UNWIND (frame, op_ret, op_errno, NULL);
+ }
+
+ return 0;
+}
+
+/* }}} */
+
+/* {{{ mknod */
+
+int
+afr_mknod_unwind (call_frame_t *frame, xlator_t *this)
+{
+ call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (local->transaction.main_frame) {
+ main_frame = local->transaction.main_frame;
+ }
+ local->transaction.main_frame = NULL;
+ }
+ UNLOCK (&frame->lock);
+
+ if (main_frame)
+ AFR_STACK_UNWIND (main_frame, local->op_ret, local->op_errno,
+ local->cont.mknod.inode,
+ &local->cont.mknod.buf);
+ return 0;
+}
+
+
+int
+afr_mknod_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno,
+ inode_t *inode, struct stat *buf)
+{
+ afr_local_t * local = NULL;
+ afr_private_t * priv = NULL;
+
+ int call_count = -1;
+ int child_index = -1;
+
+ local = frame->local;
+ priv = this->private;
+
+ child_index = (long) cookie;
+
+ LOCK (&frame->lock);
+ {
+ if (child_went_down (op_ret, op_errno))
+ afr_transaction_child_died (frame, this, child_index);
+
+ if (op_ret != -1) {
+ local->op_ret = op_ret;
+
+ if ((local->success_count == 0)
+ || (child_index == priv->read_child)) {
+ local->cont.mknod.buf = *buf;
+ local->cont.mknod.buf.st_ino =
+ afr_itransform (buf->st_ino,
+ priv->child_count,
+ child_index);
+ }
+ local->cont.mknod.inode = inode;
+
+ local->success_count++;
+ }
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0) {
+ local->transaction.unwind (frame, this);
+
+ local->transaction.resume (frame, this);
+ }
+
+ return 0;
+}
+
+
+int32_t
+afr_mknod_wind (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ int call_count = -1;
+ int i = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ call_count = afr_up_children_count (priv->child_count, local->child_up);
+
+ if (call_count == 0) {
+ local->transaction.resume (frame, this);
+ return 0;
+ }
+
+ local->call_count = call_count;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_mknod_wind_cbk, (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->mknod,
+ &local->loc, local->cont.mknod.mode,
+ local->cont.mknod.dev);
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+}
+
+
+int
+afr_mknod_done (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t * local = NULL;
+
+ local = frame->local;
+
+ local->transaction.unwind (frame, this);
+ AFR_STACK_DESTROY (frame);
+
+ return 0;
+}
+
+
+int
+afr_mknod (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, mode_t mode, dev_t dev)
+{
+ afr_private_t * priv = NULL;
+ afr_local_t * local = NULL;
+ call_frame_t * transaction_frame = NULL;
+
+ int ret = -1;
+
+ int op_ret = -1;
+ int op_errno = 0;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (this->private, out);
+
+ priv = this->private;
+
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "out of memory :(");
+ goto out;
+ }
+
+ ALLOC_OR_GOTO (local, afr_local_t, out);
+
+ ret = AFR_LOCAL_INIT (local, priv);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
+ }
+
+ transaction_frame->local = local;
+
+ loc_copy (&local->loc, loc);
+
+ local->cont.mknod.mode = mode;
+ local->cont.mknod.dev = dev;
+
+ local->transaction.fop = afr_mknod_wind;
+ local->transaction.done = afr_mknod_done;
+ local->transaction.unwind = afr_mknod_unwind;
+
+ afr_build_parent_loc (&local->transaction.parent_loc, loc);
+
+ local->transaction.main_frame = frame;
+ local->transaction.basename = AFR_BASENAME (loc->path);
+ local->transaction.pending = AFR_ENTRY_PENDING;
+
+ afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+
+ op_ret = 0;
+out:
+ if (op_ret == -1) {
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+ AFR_STACK_UNWIND (frame, op_ret, op_errno, NULL);
+ }
+
+ return 0;
+}
+
+/* }}} */
+
+/* {{{ mkdir */
+
+
+int
+afr_mkdir_unwind (call_frame_t *frame, xlator_t *this)
+{
+ call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (local->transaction.main_frame) {
+ main_frame = local->transaction.main_frame;
+ }
+ local->transaction.main_frame = NULL;
+ }
+ UNLOCK (&frame->lock);
+
+ if (main_frame)
+ AFR_STACK_UNWIND (main_frame, local->op_ret, local->op_errno,
+ local->cont.mkdir.inode,
+ &local->cont.mkdir.buf);
+ return 0;
+}
+
+
+int
+afr_mkdir_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno,
+ inode_t *inode, struct stat *buf)
+{
+ afr_local_t * local = NULL;
+ afr_private_t * priv = NULL;
+
+ int call_count = -1;
+ int child_index = -1;
+
+ local = frame->local;
+ priv = this->private;
+
+ child_index = (long) cookie;
+
+ LOCK (&frame->lock);
+ {
+ if (child_went_down (op_ret, op_errno))
+ afr_transaction_child_died (frame, this, child_index);
+
+ if (op_ret != -1) {
+ local->op_ret = op_ret;
+
+ if ((local->success_count == 0)
+ || (child_index == priv->read_child)) {
+ local->cont.mkdir.buf = *buf;
+ local->cont.mkdir.buf.st_ino =
+ afr_itransform (buf->st_ino, priv->child_count,
+ child_index);
+ }
+ local->cont.mkdir.inode = inode;
+
+ local->success_count++;
+ }
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0) {
+ local->transaction.unwind (frame, this);
+
+ local->transaction.resume (frame, this);
+ }
+
+ return 0;
+}
+
+
+int
+afr_mkdir_wind (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ int call_count = -1;
+ int i = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ call_count = afr_up_children_count (priv->child_count, local->child_up);
+
+ if (call_count == 0) {
+ local->transaction.resume (frame, this);
+ return 0;
+ }
+
+ local->call_count = call_count;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_mkdir_wind_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->mkdir,
+ &local->loc, local->cont.mkdir.mode);
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+}
+
+
+int
+afr_mkdir_done (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t * local = NULL;
+
+ local = frame->local;
+
+ local->transaction.unwind (frame, this);
+
+ AFR_STACK_DESTROY (frame);
+
+ return 0;
+}
+
+
+int
+afr_mkdir (call_frame_t *frame, xlator_t *this,
+ loc_t *loc, mode_t mode)
+{
+ afr_private_t * priv = NULL;
+ afr_local_t * local = NULL;
+ call_frame_t * transaction_frame = NULL;
+
+ int ret = -1;
+
+ int op_ret = -1;
+ int op_errno = 0;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (this->private, out);
+
+ priv = this->private;
+
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "out of memory :(");
+ goto out;
+ }
+
+ ALLOC_OR_GOTO (local, afr_local_t, out);
+
+ ret = AFR_LOCAL_INIT (local, priv);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
+ }
+
+ transaction_frame->local = local;
+
+ loc_copy (&local->loc, loc);
+
+ local->cont.mkdir.mode = mode;
+
+ local->transaction.fop = afr_mkdir_wind;
+ local->transaction.done = afr_mkdir_done;
+ local->transaction.unwind = afr_mkdir_unwind;
+
+ afr_build_parent_loc (&local->transaction.parent_loc, loc);
+
+ local->transaction.main_frame = frame;
+ local->transaction.basename = AFR_BASENAME (loc->path);
+ local->transaction.pending = AFR_ENTRY_PENDING;
+
+ afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+
+ op_ret = 0;
+out:
+ if (op_ret == -1) {
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (frame, op_ret, op_errno, NULL);
+ }
+
+ return 0;
+}
+
+/* }}} */
+
+/* {{{ link */
+
+
+int
+afr_link_unwind (call_frame_t *frame, xlator_t *this)
+{
+ call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (local->transaction.main_frame) {
+ main_frame = local->transaction.main_frame;
+ }
+ local->transaction.main_frame = NULL;
+ }
+ UNLOCK (&frame->lock);
+
+ if (main_frame) {
+ local->cont.link.buf.st_ino = local->cont.link.ino;
+
+ AFR_STACK_UNWIND (main_frame, local->op_ret, local->op_errno,
+ local->cont.link.inode,
+ &local->cont.link.buf);
+ }
+
+ return 0;
+}
+
+
+int
+afr_link_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, inode_t *inode,
+ struct stat *buf)
+{
+ afr_local_t * local = NULL;
+ afr_private_t * priv = NULL;
+
+ int call_count = -1;
+ int child_index = -1;
+
+ local = frame->local;
+ priv = this->private;
+
+ child_index = (long) cookie;
+
+ LOCK (&frame->lock);
+ {
+ if (child_went_down (op_ret, op_errno))
+ afr_transaction_child_died (frame, this, child_index);
+
+ if (op_ret != -1) {
+ local->op_ret = op_ret;
+
+ if ((local->success_count == 0)
+ || (child_index == priv->read_child)) {
+ local->cont.link.buf = *buf;
+ local->cont.link.buf.st_ino =
+ afr_itransform (buf->st_ino, priv->child_count,
+ child_index);
+ }
+ local->cont.link.inode = inode;
+
+ local->success_count++;
+ }
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0) {
+ local->transaction.unwind (frame, this);
+
+ local->transaction.resume (frame, this);
+ }
+
+ return 0;
+}
+
+
+int
+afr_link_wind (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ int call_count = -1;
+ int i = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ call_count = afr_up_children_count (priv->child_count, local->child_up);
+
+ if (call_count == 0) {
+ local->transaction.resume (frame, this);
+ return 0;
+ }
+
+ local->call_count = call_count;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_link_wind_cbk, (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->link,
+ &local->loc,
+ &local->newloc);
+
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+}
+
+
+int
+afr_link_done (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t * local = frame->local;
+
+ local->transaction.unwind (frame, this);
+
+ AFR_STACK_DESTROY (frame);
+
+ return 0;
+}
+
+
+int
+afr_link (call_frame_t *frame, xlator_t *this,
+ loc_t *oldloc, loc_t *newloc)
+{
+ afr_private_t * priv = NULL;
+ afr_local_t * local = NULL;
+ call_frame_t * transaction_frame = NULL;
+
+ int ret = -1;
+
+ int op_ret = -1;
+ int op_errno = 0;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (this->private, out);
+
+ priv = this->private;
+
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "out of memory :(");
+ goto out;
+ }
+
+ ALLOC_OR_GOTO (local, afr_local_t, out);
+
+ ret = AFR_LOCAL_INIT (local, priv);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
+ }
+
+ transaction_frame->local = local;
+
+ loc_copy (&local->loc, oldloc);
+ loc_copy (&local->newloc, newloc);
+
+ local->cont.link.ino = oldloc->inode->ino;
+
+ local->transaction.fop = afr_link_wind;
+ local->transaction.done = afr_link_done;
+ local->transaction.unwind = afr_link_unwind;
+
+ afr_build_parent_loc (&local->transaction.parent_loc, oldloc);
+
+ local->transaction.main_frame = frame;
+ local->transaction.basename = AFR_BASENAME (oldloc->path);
+ local->transaction.new_basename = AFR_BASENAME (newloc->path);
+ local->transaction.pending = AFR_ENTRY_PENDING;
+
+ afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+
+ op_ret = 0;
+out:
+ if (op_ret == -1) {
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+ AFR_STACK_UNWIND (frame, op_ret, op_errno);
+ }
+
+ return 0;
+}
+
+/* }}} */
+
+/* {{{ symlink */
+
+
+int
+afr_symlink_unwind (call_frame_t *frame, xlator_t *this)
+{
+ call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (local->transaction.main_frame) {
+ main_frame = local->transaction.main_frame;
+ }
+ local->transaction.main_frame = NULL;
+ }
+ UNLOCK (&frame->lock);
+
+ if (main_frame)
+ AFR_STACK_UNWIND (main_frame, local->op_ret, local->op_errno,
+ local->cont.symlink.inode,
+ &local->cont.symlink.buf);
+ return 0;
+}
+
+
+int
+afr_symlink_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, inode_t *inode,
+ struct stat *buf)
+{
+ afr_local_t * local = NULL;
+ afr_private_t * priv = NULL;
+
+ int call_count = -1;
+ int child_index = -1;
+
+ local = frame->local;
+ priv = this->private;
+
+ child_index = (long) cookie;
+
+ LOCK (&frame->lock);
+ {
+ if (child_went_down (op_ret, op_errno))
+ afr_transaction_child_died (frame, this, child_index);
+
+ if (op_ret != -1) {
+ local->op_ret = op_ret;
+
+ if ((local->success_count == 0)
+ || (child_index == priv->read_child)) {
+ local->cont.symlink.buf = *buf;
+ local->cont.symlink.buf.st_ino =
+ afr_itransform (buf->st_ino, priv->child_count,
+ child_index);
+ }
+ local->cont.symlink.inode = inode;
+
+ local->success_count++;
+ }
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0) {
+ local->transaction.unwind (frame, this);
+
+ local->transaction.resume (frame, this);
+ }
+
+ return 0;
+}
+
+
+int
+afr_symlink_wind (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ int call_count = -1;
+ int i = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ call_count = afr_up_children_count (priv->child_count, local->child_up);
+
+ if (call_count == 0) {
+ local->transaction.resume (frame, this);
+ return 0;
+ }
+
+ local->call_count = call_count;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_symlink_wind_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->symlink,
+ local->cont.symlink.linkpath,
+ &local->loc);
+
+ if (!--call_count)
+ break;
+
+ }
+ }
+
+ return 0;
+}
+
+
+int
+afr_symlink_done (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t * local = frame->local;
+
+ local->transaction.unwind (frame, this);
+
+ AFR_STACK_DESTROY (frame);
+
+ return 0;
+}
+
+
+int
+afr_symlink (call_frame_t *frame, xlator_t *this,
+ const char *linkpath, loc_t *loc)
+{
+ afr_private_t * priv = NULL;
+ afr_local_t * local = NULL;
+ call_frame_t * transaction_frame = NULL;
+
+ int ret = -1;
+
+ int op_ret = -1;
+ int op_errno = 0;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (this->private, out);
+
+ priv = this->private;
+
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "out of memory :(");
+ goto out;
+ }
+
+ ALLOC_OR_GOTO (local, afr_local_t, out);
+
+ ret = AFR_LOCAL_INIT (local, priv);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
+ }
+
+ transaction_frame->local = local;
+
+ loc_copy (&local->loc, loc);
+
+ local->cont.symlink.ino = loc->inode->ino;
+ local->cont.symlink.linkpath = strdup (linkpath);
+
+ local->transaction.fop = afr_symlink_wind;
+ local->transaction.done = afr_symlink_done;
+ local->transaction.unwind = afr_symlink_unwind;
+
+ afr_build_parent_loc (&local->transaction.parent_loc, loc);
+
+ local->transaction.main_frame = frame;
+ local->transaction.basename = AFR_BASENAME (loc->path);
+ local->transaction.pending = AFR_ENTRY_PENDING;
+
+ afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+
+ op_ret = 0;
+out:
+ if (op_ret == -1) {
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+ AFR_STACK_UNWIND (frame, op_ret, op_errno, NULL, NULL);
+ }
+
+ return 0;
+}
+
+/* }}} */
+
+/* {{{ rename */
+
+int
+afr_rename_unwind (call_frame_t *frame, xlator_t *this)
+{
+ call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (local->transaction.main_frame) {
+ main_frame = local->transaction.main_frame;
+ }
+ local->transaction.main_frame = NULL;
+ }
+ UNLOCK (&frame->lock);
+
+ if (main_frame) {
+ local->cont.rename.buf.st_ino = local->cont.rename.ino;
+
+ AFR_STACK_UNWIND (main_frame, local->op_ret, local->op_errno,
+ &local->cont.rename.buf);
+ }
+
+ return 0;
+}
+
+
+int
+afr_rename_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno, struct stat *buf)
+{
+ afr_local_t * local = NULL;
+ afr_private_t * priv = NULL;
+
+ int call_count = -1;
+ int child_index = -1;
+
+ local = frame->local;
+ priv = this->private;
+
+ child_index = (long) cookie;
+
+ LOCK (&frame->lock);
+ {
+ if (child_went_down (op_ret, op_errno))
+ afr_transaction_child_died (frame, this, child_index);
+
+ if ((op_ret != -1) && (local->success_count == 0)) {
+ local->op_ret = op_ret;
+
+ if (buf) {
+ local->cont.rename.buf = *buf;
+ local->cont.rename.buf.st_ino =
+ afr_itransform (buf->st_ino, priv->child_count,
+ child_index);
+ }
+ local->success_count++;
+ }
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0) {
+ local->transaction.unwind (frame, this);
+
+ local->transaction.resume (frame, this);
+ }
+
+ return 0;
+}
+
+
+int32_t
+afr_rename_wind (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ int call_count = -1;
+ int i = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ call_count = afr_up_children_count (priv->child_count, local->child_up);
+
+ if (call_count == 0) {
+ local->transaction.resume (frame, this);
+ return 0;
+ }
+
+ local->call_count = call_count;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_rename_wind_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->rename,
+ &local->loc,
+ &local->newloc);
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+}
+
+
+int
+afr_rename_done (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t * local = frame->local;
+
+ local->transaction.unwind (frame, this);
+
+ AFR_STACK_DESTROY (frame);
+
+ return 0;
+}
+
+
+int
+afr_rename (call_frame_t *frame, xlator_t *this,
+ loc_t *oldloc, loc_t *newloc)
+{
+ afr_private_t * priv = NULL;
+ afr_local_t * local = NULL;
+ call_frame_t * transaction_frame = NULL;
+
+ int ret = -1;
+
+ int op_ret = -1;
+ int op_errno = 0;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (this->private, out);
+
+ priv = this->private;
+
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "out of memory :(");
+ goto out;
+ }
+
+ ALLOC_OR_GOTO (local, afr_local_t, out);
+
+ ret = AFR_LOCAL_INIT (local, priv);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
+ }
+
+ transaction_frame->local = local;
+
+ loc_copy (&local->loc, oldloc);
+ loc_copy (&local->newloc, newloc);
+
+ local->cont.rename.ino = oldloc->inode->ino;
+
+ local->transaction.fop = afr_rename_wind;
+ local->transaction.done = afr_rename_done;
+ local->transaction.unwind = afr_rename_unwind;
+
+ afr_build_parent_loc (&local->transaction.parent_loc, oldloc);
+ afr_build_parent_loc (&local->transaction.new_parent_loc, newloc);
+
+ local->transaction.main_frame = frame;
+ local->transaction.basename = AFR_BASENAME (oldloc->path);
+ local->transaction.new_basename = AFR_BASENAME (newloc->path);
+ local->transaction.pending = AFR_ENTRY_PENDING;
+
+ afr_transaction (transaction_frame, this, AFR_ENTRY_RENAME_TRANSACTION);
+
+ op_ret = 0;
+out:
+ if (op_ret == -1) {
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+
+ AFR_STACK_UNWIND (frame, op_ret, op_errno, NULL);
+ }
+
+ return 0;
+}
+
+/* }}} */
+
+/* {{{ unlink */
+
+int
+afr_unlink_unwind (call_frame_t *frame, xlator_t *this)
+{
+ call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (local->transaction.main_frame) {
+ main_frame = local->transaction.main_frame;
+ }
+ local->transaction.main_frame = NULL;
+ }
+ UNLOCK (&frame->lock);
+
+ if (main_frame)
+ AFR_STACK_UNWIND (main_frame, local->op_ret, local->op_errno);
+
+ return 0;
+}
+
+
+int
+afr_unlink_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno)
+{
+ afr_local_t * local = NULL;
+ afr_private_t * priv = NULL;
+
+ int call_count = -1;
+ int child_index = (long) cookie;
+ int need_unwind = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ LOCK (&frame->lock);
+ {
+ if (child_went_down (op_ret, op_errno))
+ afr_transaction_child_died (frame, this, child_index);
+
+ if (op_ret != -1) {
+ if (local->success_count == 0) {
+ local->op_ret = op_ret;
+ }
+ local->success_count++;
+
+ if (local->success_count == priv->wait_count) {
+ need_unwind = 1;
+ }
+ }
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0) {
+ local->transaction.unwind (frame, this);
+
+ local->transaction.resume (frame, this);
+ }
+
+ return 0;
+}
+
+
+int32_t
+afr_unlink_wind (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ int call_count = -1;
+ int i = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ call_count = afr_up_children_count (priv->child_count, local->child_up);
+
+ if (call_count == 0) {
+ local->transaction.resume (frame, this);
+ return 0;
+ }
+
+ local->call_count = call_count;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_unlink_wind_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->unlink,
+ &local->loc);
+
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+}
+
+
+int32_t
+afr_unlink_done (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t * local = frame->local;
+
+ local->transaction.unwind (frame, this);
+
+ AFR_STACK_DESTROY (frame);
+
+ return 0;
+}
+
+
+int32_t
+afr_unlink (call_frame_t *frame, xlator_t *this,
+ loc_t *loc)
+{
+ afr_private_t * priv = NULL;
+ afr_local_t * local = NULL;
+ call_frame_t * transaction_frame = NULL;
+
+ int ret = -1;
+
+ int op_ret = -1;
+ int op_errno = 0;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (this->private, out);
+
+ priv = this->private;
+
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "out of memory :(");
+ goto out;
+ }
+
+ ALLOC_OR_GOTO (local, afr_local_t, out);
+
+ ret = AFR_LOCAL_INIT (local, priv);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
+ }
+
+ transaction_frame->local = local;
+
+ loc_copy (&local->loc, loc);
+
+ local->transaction.fop = afr_unlink_wind;
+ local->transaction.done = afr_unlink_done;
+ local->transaction.unwind = afr_unlink_unwind;
+
+ afr_build_parent_loc (&local->transaction.parent_loc, loc);
+
+ local->transaction.main_frame = frame;
+ local->transaction.basename = AFR_BASENAME (loc->path);
+ local->transaction.pending = AFR_ENTRY_PENDING;
+
+ afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+
+ op_ret = 0;
+out:
+ if (op_ret == -1) {
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+ AFR_STACK_UNWIND (frame, op_ret, op_errno);
+ }
+
+ return 0;
+}
+
+/* }}} */
+
+/* {{{ rmdir */
+
+
+
+int
+afr_rmdir_unwind (call_frame_t *frame, xlator_t *this)
+{
+ call_frame_t *main_frame = NULL;
+ afr_local_t *local = NULL;
+
+ local = frame->local;
+
+ LOCK (&frame->lock);
+ {
+ if (local->transaction.main_frame) {
+ main_frame = local->transaction.main_frame;
+ }
+ local->transaction.main_frame = NULL;
+ }
+ UNLOCK (&frame->lock);
+
+ if (main_frame)
+ AFR_STACK_UNWIND (main_frame, local->op_ret, local->op_errno);
+
+ return 0;
+}
+
+
+int
+afr_rmdir_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno)
+{
+ afr_local_t * local = NULL;
+ afr_private_t * priv = NULL;
+
+ int call_count = -1;
+ int child_index = (long) cookie;
+ int need_unwind = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ LOCK (&frame->lock);
+ {
+ if (child_went_down (op_ret, op_errno))
+ afr_transaction_child_died (frame, this, child_index);
+
+ if (op_ret != -1) {
+ if (local->success_count == 0) {
+ local->op_ret = op_ret;
+ }
+ local->success_count++;
+
+ if (local->success_count == priv->wait_count)
+ need_unwind = 1;
+ }
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0) {
+ local->transaction.unwind (frame, this);
+
+ local->transaction.resume (frame, this);
+ }
+
+ return 0;
+}
+
+
+int
+afr_rmdir_wind (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ int call_count = -1;
+ int i = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ call_count = afr_up_children_count (priv->child_count, local->child_up);
+
+ if (call_count == 0) {
+ local->transaction.resume (frame, this);
+ return 0;
+ }
+
+ local->call_count = call_count;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_rmdir_wind_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->rmdir,
+ &local->loc);
+
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+}
+
+
+int
+afr_rmdir_done (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t * local = frame->local;
+
+ local->transaction.unwind (frame, this);
+
+ AFR_STACK_DESTROY (frame);
+
+ return 0;
+}
+
+
+int
+afr_rmdir (call_frame_t *frame, xlator_t *this,
+ loc_t *loc)
+{
+ afr_private_t * priv = NULL;
+ afr_local_t * local = NULL;
+ call_frame_t * transaction_frame = NULL;
+
+ int ret = -1;
+
+ int op_ret = -1;
+ int op_errno = 0;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (this->private, out);
+
+ priv = this->private;
+
+ transaction_frame = copy_frame (frame);
+ if (!transaction_frame) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "out of memory :(");
+ goto out;
+ }
+
+ ALLOC_OR_GOTO (local, afr_local_t, out);
+
+ ret = AFR_LOCAL_INIT (local, priv);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
+ }
+
+ transaction_frame->local = local;
+
+ loc_copy (&local->loc, loc);
+
+ local->transaction.fop = afr_rmdir_wind;
+ local->transaction.done = afr_rmdir_done;
+ local->transaction.unwind = afr_rmdir_unwind;
+
+ afr_build_parent_loc (&local->transaction.parent_loc, loc);
+
+ local->transaction.main_frame = frame;
+ local->transaction.basename = AFR_BASENAME (loc->path);
+ local->transaction.pending = AFR_ENTRY_PENDING;
+
+ afr_transaction (transaction_frame, this, AFR_ENTRY_TRANSACTION);
+
+ op_ret = 0;
+out:
+ if (op_ret == -1) {
+ if (transaction_frame)
+ AFR_STACK_DESTROY (transaction_frame);
+ AFR_STACK_UNWIND (frame, op_ret, op_errno);
+ }
+
+ return 0;
+}
+
+/* }}} */
+
+/* {{{ setdents */
+
+int32_t
+afr_setdents_wind_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
+ int32_t op_ret, int32_t op_errno)
+{
+ afr_local_t * local = NULL;
+ afr_private_t * priv = NULL;
+
+ int call_count = -1;
+ int child_index = (long) cookie;
+
+ local = frame->local;
+ priv = this->private;
+
+ LOCK (&frame->lock);
+ {
+ if (child_went_down (op_ret, op_errno))
+ afr_transaction_child_died (frame, this, child_index);
+
+ if ((op_ret != -1) && (local->success_count == 0)) {
+ local->op_ret = op_ret;
+ local->success_count++;
+ }
+
+ local->op_errno = op_errno;
+ }
+ UNLOCK (&frame->lock);
+
+ call_count = afr_frame_return (frame);
+
+ if (call_count == 0) {
+ local->transaction.resume (frame, this);
+ }
+
+ return 0;
+}
+
+
+int32_t
+afr_setdents_wind (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t *local = NULL;
+ afr_private_t *priv = NULL;
+
+ int call_count = -1;
+ int i = 0;
+
+ local = frame->local;
+ priv = this->private;
+
+ call_count = afr_up_children_count (priv->child_count, local->child_up);
+
+ if (call_count == 0) {
+ local->transaction.resume (frame, this);
+ return 0;
+ }
+
+ local->call_count = call_count;
+
+ for (i = 0; i < priv->child_count; i++) {
+ if (local->child_up[i]) {
+ STACK_WIND_COOKIE (frame, afr_setdents_wind_cbk,
+ (void *) (long) i,
+ priv->children[i],
+ priv->children[i]->fops->setdents,
+ local->fd, local->cont.setdents.flags,
+ local->cont.setdents.entries,
+ local->cont.setdents.count);
+
+ if (!--call_count)
+ break;
+ }
+ }
+
+ return 0;
+}
+
+
+int32_t
+afr_setdents_done (call_frame_t *frame, xlator_t *this)
+{
+ afr_local_t * local = frame->local;
+
+ AFR_STACK_UNWIND (frame, local->op_ret, local->op_errno);
+
+ return 0;
+}
+
+
+int32_t
+afr_setdents (call_frame_t *frame, xlator_t *this,
+ fd_t *fd, int32_t flags, dir_entry_t *entries, int32_t count)
+{
+ afr_private_t * priv = NULL;
+ afr_local_t * local = NULL;
+
+ int ret = -1;
+
+ int op_ret = -1;
+ int op_errno = 0;
+
+ VALIDATE_OR_GOTO (frame, out);
+ VALIDATE_OR_GOTO (this, out);
+ VALIDATE_OR_GOTO (this->private, out);
+
+ priv = this->private;
+
+ ALLOC_OR_GOTO (local, afr_local_t, out);
+
+ ret = AFR_LOCAL_INIT (local, priv);
+ if (ret < 0) {
+ op_errno = -ret;
+ goto out;
+ }
+
+ frame->local = local;
+
+ local->fd = fd_ref (fd);
+
+ local->cont.setdents.flags = flags;
+ local->cont.setdents.entries = entries;
+ local->cont.setdents.count = count;
+
+ local->transaction.fop = afr_setdents_wind;
+ local->transaction.done = afr_setdents_done;
+
+ local->transaction.basename = NULL;
+ local->transaction.pending = AFR_ENTRY_PENDING;
+
+ afr_transaction (frame, this, AFR_ENTRY_TRANSACTION);
+
+ op_ret = 0;
+out:
+ if (op_ret == -1) {
+ AFR_STACK_UNWIND (frame, op_ret, op_errno);
+ }
+
+ return 0;
+}
+
+/* }}} */