"
*/
static VALUE
method_inspect(VALUE method)
{
struct METHOD *data;
VALUE str;
const char *s;
char *sharp = "#";
Data_Get_Struct(method, struct METHOD, data);
str = rb_str_buf_new2("#<");
s = rb_obj_classname(method);
rb_str_buf_cat2(str, s);
rb_str_buf_cat2(str, ": ");
if (FL_TEST(data->oclass, FL_SINGLETON)) {
VALUE v = rb_iv_get(data->oclass, "__attached__");
if (data->recv == Qundef) {
rb_str_buf_append(str, rb_inspect(data->oclass));
}
else if (data->recv == v) {
rb_str_buf_append(str, rb_inspect(v));
sharp = ".";
}
else {
rb_str_buf_append(str, rb_inspect(data->recv));
rb_str_buf_cat2(str, "(");
rb_str_buf_append(str, rb_inspect(v));
rb_str_buf_cat2(str, ")");
sharp = ".";
}
}
else {
rb_str_buf_cat2(str, rb_class2name(data->rclass));
if (data->rclass != data->oclass) {
rb_str_buf_cat2(str, "(");
rb_str_buf_cat2(str, rb_class2name(data->oclass));
rb_str_buf_cat2(str, ")");
}
}
rb_str_buf_cat2(str, sharp);
rb_str_append(str, rb_id2str(data->oid));
rb_str_buf_cat2(str, ">");
return str;
}
static VALUE
mproc(VALUE method)
{
return rb_funcall(Qnil, rb_intern("proc"), 0);
}
static VALUE
mlambda(VALUE method)
{
return rb_funcall(Qnil, rb_intern("lambda"), 0);
}
static VALUE
bmcall(VALUE args, VALUE method)
{
volatile VALUE a;
if (CLASS_OF(args) != rb_cArray) {
args = rb_ary_new3(1, args);
}
a = args;
return rb_method_call(RARRAY_LEN(a), RARRAY_PTR(a), method);
}
VALUE
rb_proc_new(
VALUE (*func)(ANYARGS), /* VALUE yieldarg[, VALUE procarg] */
VALUE val)
{
VALUE procval = rb_iterate(mproc, 0, func, val);
return procval;
}
/*
* call-seq:
* meth.to_proc => prc
*
* Returns a Proc
object corresponding to this method.
*/
static VALUE
method_proc(VALUE method)
{
VALUE procval;
rb_proc_t *proc;
/*
* class Method
* def to_proc
* proc{|*args|
* self.call(*args)
* }
* end
* end
*/
procval = rb_iterate(mlambda, 0, bmcall, method);
GetProcPtr(procval, proc);
proc->is_from_method = 1;
return procval;
}
static VALUE
rb_obj_is_method(VALUE m)
{
if (TYPE(m) == T_DATA && RDATA(m)->dmark == (RUBY_DATA_FUNC) bm_mark) {
return Qtrue;
}
return Qfalse;
}
/*
* call_seq:
* local_jump_error.exit_value => obj
*
* Returns the exit value associated with this +LocalJumpError+.
*/
static VALUE
localjump_xvalue(VALUE exc)
{
return rb_iv_get(exc, "@exit_value");
}
/*
* call-seq:
* local_jump_error.reason => symbol
*
* The reason this block was terminated:
* :break, :redo, :retry, :next, :return, or :noreason.
*/
static VALUE
localjump_reason(VALUE exc)
{
return rb_iv_get(exc, "@reason");
}
/*
* call-seq:
* prc.binding => binding
*
* Returns the binding associated with prc. Note that
* Kernel#eval
accepts either a Proc
or a
* Binding
object as its second parameter.
*
* def fred(param)
* proc {}
* end
*
* b = fred(99)
* eval("param", b.binding) #=> 99
*/
static VALUE
proc_binding(VALUE self)
{
rb_proc_t *proc;
VALUE bindval = binding_alloc(rb_cBinding);
rb_binding_t *bind;
GetProcPtr(self, proc);
GetBindingPtr(bindval, bind);
if (TYPE(proc->block.iseq) == T_NODE) {
rb_raise(rb_eArgError, "Can't create Binding from C level Proc");
}
bind->env = proc->envval;
bind->cref_stack = proc->special_cref_stack;
return bindval;
}
static VALUE curry(VALUE dummy, VALUE args, int argc, VALUE *argv);
static VALUE
make_curry_proc(VALUE proc, VALUE passed, VALUE arity)
{
VALUE args = rb_ary_new2(3);
RARRAY_PTR(args)[0] = proc;
RARRAY_PTR(args)[1] = passed;
RARRAY_PTR(args)[2] = arity;
RARRAY_LEN(args) = 3;
rb_ary_freeze(passed);
rb_ary_freeze(args);
return rb_proc_new(curry, args);
}
static VALUE
curry(VALUE dummy, VALUE args, int argc, VALUE *argv)
{
VALUE proc, passed, arity;
proc = RARRAY_PTR(args)[0];
passed = RARRAY_PTR(args)[1];
arity = RARRAY_PTR(args)[2];
passed = rb_ary_plus(passed, rb_ary_new4(argc, argv));
rb_ary_freeze(passed);
if(RARRAY_LEN(passed) < FIX2INT(arity)) {
arity = make_curry_proc(proc, passed, arity);
return arity;
}
arity = rb_proc_call(proc, passed);
return arity;
}
/*
* call-seq:
* prc.curry => a_proc
* prc.curry(arity) => a_proc
*
* Returns a curried proc. If the optional arity argument is given,
* it determines the number of arguments.
* A curried proc receives some arguments. If a sufficient number of
* arguments are supplied, it passes the supplied arguments to the original
* proc and returns the result. Otherwise, returns another curried proc that
* takes the rest of arguments.
*
* b = proc {|x, y, z| (x||0) + (y||0) + (z||0) }
* p b.curry[1][2][3] #=> 6
* p b.curry[1, 2][3, 4] #=> 6
* p b.curry(5)[1][2][3][4][5] #=> 6
* p b.curry(5)[1, 2][3, 4][5] #=> 6
* p b.curry(1)[1] #=> 1
*
* b = proc {|x, y, z, *w| (x||0) + (y||0) + (z||0) + w.inject(0, &:+) }
* p b.curry[1][2][3] #=> 6
* p b.curry[1, 2][3, 4] #=> 10
* p b.curry(5)[1][2][3][4][5] #=> 15
* p b.curry(5)[1, 2][3, 4][5] #=> 15
* p b.curry(1)[1] #=> 1
*
* b = lambda {|x, y, z| (x||0) + (y||0) + (z||0) }
* p b.curry[1][2][3] #=> 6
* p b.curry[1, 2][3, 4] #=> wrong number of arguments (4 or 3)
* p b.curry(5) #=> wrong number of arguments (5 or 3)
* p b.curry(1) #=> wrong number of arguments (1 or 3)
*
* b = lambda {|x, y, z, *w| (x||0) + (y||0) + (z||0) + w.inject(0, &:+) }
* p b.curry[1][2][3] #=> 6
* p b.curry[1, 2][3, 4] #=> 10
* p b.curry(5)[1][2][3][4][5] #=> 15
* p b.curry(5)[1, 2][3, 4][5] #=> 15
* p b.curry(1) #=> wrong number of arguments (1 or 3)
*
* b = proc { :foo }
* p b.curry[] #=> :foo
*/
static VALUE
proc_curry(int argc, VALUE *argv, VALUE self)
{
int sarity, marity = FIX2INT(proc_arity(self));
VALUE arity, opt = Qfalse;
if (marity < 0) {
marity = -marity - 1;
opt = Qtrue;
}
rb_scan_args(argc, argv, "01", &arity);
if (NIL_P(arity)) {
arity = INT2FIX(marity);
}
else {
sarity = FIX2INT(arity);
if (proc_lambda_p(self) && (sarity < marity || (sarity > marity && !opt))) {
rb_raise(rb_eArgError, "wrong number of arguments (%d for %d)", sarity, marity);
}
}
return make_curry_proc(self, rb_ary_new(), arity);
}
/*
* Proc
objects are blocks of code that have been bound to
* a set of local variables. Once bound, the code may be called in
* different contexts and still access those variables.
*
* def gen_times(factor)
* return Proc.new {|n| n*factor }
* end
*
* times3 = gen_times(3)
* times5 = gen_times(5)
*
* times3.call(12) #=> 36
* times5.call(5) #=> 25
* times3.call(times5.call(4)) #=> 60
*
*/
void
Init_Proc(void)
{
/* Proc */
rb_cProc = rb_define_class("Proc", rb_cObject);
rb_undef_alloc_func(rb_cProc);
rb_define_singleton_method(rb_cProc, "new", rb_proc_s_new, -1);
rb_define_method(rb_cProc, "call", proc_call, -1);
rb_define_method(rb_cProc, "[]", proc_call, -1);
rb_define_method(rb_cProc, "yield", proc_call, -1);
rb_define_method(rb_cProc, "to_proc", proc_to_proc, 0);
rb_define_method(rb_cProc, "arity", proc_arity, 0);
rb_define_method(rb_cProc, "clone", proc_clone, 0);
rb_define_method(rb_cProc, "dup", proc_dup, 0);
rb_define_method(rb_cProc, "==", proc_eq, 1);
rb_define_method(rb_cProc, "eql?", proc_eq, 1);
rb_define_method(rb_cProc, "hash", proc_hash, 0);
rb_define_method(rb_cProc, "to_s", proc_to_s, 0);
rb_define_method(rb_cProc, "lambda?", proc_lambda_p, 0);
rb_define_method(rb_cProc, "binding", proc_binding, 0);
rb_define_method(rb_cProc, "curry", proc_curry, -1);
/* Exceptions */
rb_eLocalJumpError = rb_define_class("LocalJumpError", rb_eStandardError);
rb_define_method(rb_eLocalJumpError, "exit_value", localjump_xvalue, 0);
rb_define_method(rb_eLocalJumpError, "reason", localjump_reason, 0);
rb_eSysStackError = rb_define_class("SystemStackError", rb_eException);
sysstack_error = rb_exc_new2(rb_eSysStackError, "stack level too deep");
OBJ_TAINT(sysstack_error);
rb_register_mark_object(sysstack_error);
/* utility functions */
rb_define_global_function("proc", rb_block_proc, 0);
rb_define_global_function("lambda", proc_lambda, 0);
/* Method */
rb_cMethod = rb_define_class("Method", rb_cObject);
rb_undef_alloc_func(rb_cMethod);
rb_undef_method(CLASS_OF(rb_cMethod), "new");
rb_define_method(rb_cMethod, "==", method_eq, 1);
rb_define_method(rb_cMethod, "eql?", method_eq, 1);
rb_define_method(rb_cMethod, "hash", method_hash, 0);
rb_define_method(rb_cMethod, "clone", method_clone, 0);
rb_define_method(rb_cMethod, "call", rb_method_call, -1);
rb_define_method(rb_cMethod, "[]", rb_method_call, -1);
rb_define_method(rb_cMethod, "arity", method_arity_m, 0);
rb_define_method(rb_cMethod, "inspect", method_inspect, 0);
rb_define_method(rb_cMethod, "to_s", method_inspect, 0);
rb_define_method(rb_cMethod, "to_proc", method_proc, 0);
rb_define_method(rb_cMethod, "receiver", method_receiver, 0);
rb_define_method(rb_cMethod, "name", method_name, 0);
rb_define_method(rb_cMethod, "owner", method_owner, 0);
rb_define_method(rb_cMethod, "unbind", method_unbind, 0);
rb_define_method(rb_mKernel, "method", rb_obj_method, 1);
rb_define_method(rb_mKernel, "public_method", rb_obj_public_method, 1);
/* UnboundMethod */
rb_cUnboundMethod = rb_define_class("UnboundMethod", rb_cObject);
rb_undef_alloc_func(rb_cUnboundMethod);
rb_undef_method(CLASS_OF(rb_cUnboundMethod), "new");
rb_define_method(rb_cUnboundMethod, "==", method_eq, 1);
rb_define_method(rb_cUnboundMethod, "eql?", method_eq, 1);
rb_define_method(rb_cUnboundMethod, "hash", method_hash, 0);
rb_define_method(rb_cUnboundMethod, "clone", method_clone, 0);
rb_define_method(rb_cUnboundMethod, "arity", method_arity_m, 0);
rb_define_method(rb_cUnboundMethod, "inspect", method_inspect, 0);
rb_define_method(rb_cUnboundMethod, "to_s", method_inspect, 0);
rb_define_method(rb_cUnboundMethod, "name", method_name, 0);
rb_define_method(rb_cUnboundMethod, "owner", method_owner, 0);
rb_define_method(rb_cUnboundMethod, "bind", umethod_bind, 1);
/* Module#*_method */
rb_define_method(rb_cModule, "instance_method", rb_mod_instance_method, 1);
rb_define_method(rb_cModule, "public_instance_method", rb_mod_public_instance_method, 1);
rb_define_private_method(rb_cModule, "define_method", rb_mod_define_method, -1);
/* Kernel */
rb_define_method(rb_mKernel, "define_singleton_method", rb_obj_define_method, -1);
}
/*
* Objects of class Binding
encapsulate the execution
* context at some particular place in the code and retain this context
* for future use. The variables, methods, value of self
,
* and possibly an iterator block that can be accessed in this context
* are all retained. Binding objects can be created using
* Kernel#binding
, and are made available to the callback
* of Kernel#set_trace_func
.
*
* These binding objects can be passed as the second argument of the
* Kernel#eval
method, establishing an environment for the
* evaluation.
*
* class Demo
* def initialize(n)
* @secret = n
* end
* def getBinding
* return binding()
* end
* end
*
* k1 = Demo.new(99)
* b1 = k1.getBinding
* k2 = Demo.new(-3)
* b2 = k2.getBinding
*
* eval("@secret", b1) #=> 99
* eval("@secret", b2) #=> -3
* eval("@secret") #=> nil
*
* Binding objects have no class-specific methods.
*
*/
void
Init_Binding(void)
{
rb_cBinding = rb_define_class("Binding", rb_cObject);
rb_undef_alloc_func(rb_cBinding);
rb_undef_method(CLASS_OF(rb_cBinding), "new");
rb_define_method(rb_cBinding, "clone", binding_clone, 0);
rb_define_method(rb_cBinding, "dup", binding_dup, 0);
rb_define_method(rb_cBinding, "eval", bind_eval, -1);
rb_define_global_function("binding", rb_f_binding, 0);
}
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/*
Copyright (c) 2008-2009 Gluster, Inc. <http://www.gluster.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 "inode.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 "byte-order.h"
#include "afr-transaction.h"
#include "afr-self-heal.h"
#include "afr-self-heal-common.h"
int
afr_sh_post_nonblocking_entrylk_cbk (call_frame_t *frame, xlator_t *this);
int
afr_sh_entry_done (call_frame_t *frame, xlator_t *this)
{
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
afr_private_t *priv = NULL;
local = frame->local;
sh = &local->self_heal;
priv = this->private;
/*
TODO: cleanup sh->*
*/
if (sh->healing_fd)
fd_unref (sh->healing_fd);
sh->healing_fd = NULL;
/* for (i = 0; i < priv->child_count; i++) { */
/* sh->locked_nodes[i] = 0; */
/* } */
gf_log (this->name, GF_LOG_TRACE,
"self heal of %s completed",
local->loc.path);
sh->completion_cbk (frame, this);
return 0;
}
int
afr_sh_entry_unlock (call_frame_t *frame, xlator_t *this)
{
afr_local_t *local = NULL;
afr_internal_lock_t *int_lock = NULL;
local = frame->local;
int_lock = &local->internal_lock;
int_lock->lock_cbk = afr_sh_entry_done;
afr_unlock (frame, this);
return 0;
}
int
afr_sh_entry_finish (call_frame_t *frame, xlator_t *this)
{
afr_local_t *local = NULL;
local = frame->local;
gf_log (this->name, GF_LOG_TRACE,
"finishing entry selfheal of %s", local->loc.path);
afr_sh_entry_unlock (frame, this);
return 0;
}
int
afr_sh_entry_erase_pending_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret,
int32_t op_errno, dict_t *xattr)
{
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
afr_private_t *priv = NULL;
int call_count = 0;
local = frame->local;
sh = &local->self_heal;
priv = this->private;
LOCK (&frame->lock);
{
}
UNLOCK (&frame->lock);
call_count = afr_frame_return (frame);
if (call_count == 0)
afr_sh_entry_finish (frame, this);
return 0;
}
int
afr_sh_entry_erase_pending (call_frame_t *frame, xlator_t *this)
{
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
afr_private_t *priv = NULL;
int call_count = 0;
int i = 0;
dict_t **erase_xattr = NULL;
int need_unwind = 0;
local = frame->local;
sh = &local->self_heal;
priv = this->private;
afr_sh_pending_to_delta (priv, sh->xattr, sh->delta_matrix, sh->success,
priv->child_count, AFR_ENTRY_TRANSACTION);
erase_xattr = GF_CALLOC (sizeof (*erase_xattr), priv->child_count,
gf_afr_mt_dict_t);
for (i = 0; i < priv->child_count; i++) {
if (sh->xattr[i]) {
call_count++;
erase_xattr[i] = get_new_dict();
dict_ref (erase_xattr[i]);
}
}
if (call_count == 0)
need_unwind = 1;
afr_sh_delta_to_xattr (priv, sh->delta_matrix, erase_xattr,
priv->child_count, AFR_ENTRY_TRANSACTION);
local->call_count = call_count;
for (i = 0; i < priv->child_count; i++) {
if (!erase_xattr[i])
continue;
gf_log (this->name, GF_LOG_TRACE,
"erasing pending flags from %s on %s",
local->loc.path, priv->children[i]->name);
STACK_WIND_COOKIE (frame, afr_sh_entry_erase_pending_cbk,
(void *) (long) i,
priv->children[i],
priv->children[i]->fops->xattrop,
&local->loc,
GF_XATTROP_ADD_ARRAY, erase_xattr[i]);
if (!--call_count)
break;
}
for (i = 0; i < priv->child_count; i++) {
if (erase_xattr[i]) {
dict_unref (erase_xattr[i]);
}
}
GF_FREE (erase_xattr);
if (need_unwind)
afr_sh_entry_finish (frame, this);
return 0;
}
static int
next_active_source (call_frame_t *frame, xlator_t *this,
int current_active_source)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
int source = -1;
int next_active_source = -1;
int i = 0;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
source = sh->source;
if (source != -1) {
if (current_active_source != source)
next_active_source = source;
goto out;
}
/*
the next active sink becomes the source for the
'conservative decision' of merging all entries
*/
for (i = 0; i < priv->child_count; i++) {
if ((sh->sources[i] == 0)
&& (local->child_up[i] == 1)
&& (i > current_active_source)) {
next_active_source = i;
break;
}
}
out:
return next_active_source;
}
static int
next_active_sink (call_frame_t *frame, xlator_t *this,
int current_active_sink)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
int next_active_sink = -1;
int i = 0;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
/*
the next active sink becomes the source for the
'conservative decision' of merging all entries
*/
for (i = 0; i < priv->child_count; i++) {
if ((sh->sources[i] == 0)
&& (local->child_up[i] == 1)
&& (i > current_active_sink)) {
next_active_sink = i;
break;
}
}
return next_active_sink;
}
int
build_child_loc (xlator_t *this, loc_t *child, loc_t *parent, char *name)
{
int ret = -1;
if (!child) {
goto out;
}
if (strcmp (parent->path, "/") == 0)
ret = gf_asprintf ((char **)&child->path, "/%s", name);
else
ret = gf_asprintf ((char **)&child->path, "%s/%s", parent->path,
name);
if (-1 == ret) {
gf_log (this->name, GF_LOG_ERROR,
"asprintf failed while setting child path");
}
if (!child->path) {
gf_log (this->name, GF_LOG_ERROR,
"Out of memory.");
goto out;
}
child->name = strrchr (child->path, '/');
if (child->name)
child->name++;
child->parent = inode_ref (parent->inode);
child->inode = inode_new (parent->inode->table);
if (!child->inode) {
gf_log (this->name, GF_LOG_ERROR,
"Out of memory.");
goto out;
}
ret = 0;
out:
if (ret == -1)
loc_wipe (child);
return ret;
}
int
afr_sh_entry_expunge_all (call_frame_t *frame, xlator_t *this);
int
afr_sh_entry_expunge_subvol (call_frame_t *frame, xlator_t *this,
int active_src);
int
afr_sh_entry_expunge_entry_done (call_frame_t *frame, xlator_t *this,
int active_src)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
int call_count = 0;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
LOCK (&frame->lock);
{
}
UNLOCK (&frame->lock);
call_count = afr_frame_return (frame);
if (call_count == 0)
afr_sh_entry_expunge_subvol (frame, this, active_src);
return 0;
}
int
afr_sh_entry_expunge_parent_setattr_cbk (call_frame_t *expunge_frame,
void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno,
struct iatt *preop, struct iatt *postop)
{
afr_private_t *priv = NULL;
afr_local_t *expunge_local = NULL;
afr_self_heal_t *expunge_sh = NULL;
call_frame_t *frame = NULL;
int active_src = (long) cookie;
priv = this->private;
expunge_local = expunge_frame->local;
expunge_sh = &expunge_local->self_heal;
frame = expunge_sh->sh_frame;
if (op_ret != 0) {
gf_log (this->name, GF_LOG_DEBUG,
"setattr on parent directory of %s on subvolume %s failed: %s",
expunge_local->loc.path,
priv->children[active_src]->name, strerror (op_errno));
}
AFR_STACK_DESTROY (expunge_frame);
afr_sh_entry_expunge_entry_done (frame, this, active_src);
return 0;
}
int
afr_sh_entry_expunge_rename_cbk (call_frame_t *expunge_frame, void *cookie,
xlator_t *this,
int32_t op_ret, int32_t op_errno,
struct iatt *buf,
struct iatt *preoldparent,
struct iatt *postoldparent,
struct iatt *prenewparent,
struct iatt *postnewparent)
{
afr_private_t *priv = NULL;
afr_local_t *expunge_local = NULL;
afr_self_heal_t *expunge_sh = NULL;
int active_src = 0;
call_frame_t *frame = NULL;
int32_t valid = 0;
priv = this->private;
expunge_local = expunge_frame->local;
expunge_sh = &expunge_local->self_heal;
frame = expunge_sh->sh_frame;
active_src = (long) cookie;
if (op_ret == 0) {
gf_log (this->name, GF_LOG_DEBUG,
"removed %s on %s",
expunge_local->loc.path,
priv->children[active_src]->name);
} else {
gf_log (this->name, GF_LOG_DEBUG,
"removing %s on %s failed (%s)",
expunge_local->loc.path,
priv->children[active_src]->name,
strerror (op_errno));
}
valid = GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME;
afr_build_parent_loc (&expunge_sh->parent_loc, &expunge_local->loc);
STACK_WIND_COOKIE (expunge_frame, afr_sh_entry_expunge_parent_setattr_cbk,
(void *) (long) active_src,
priv->children[active_src],
priv->children[active_src]->fops->setattr,
&expunge_sh->parent_loc,
&expunge_sh->parentbuf,
valid);
return 0;
}
static void
init_trash_loc (loc_t *trash_loc, inode_table_t *table)
{
trash_loc->path = gf_strdup ("/" GF_REPLICATE_TRASH_DIR);
trash_loc->name = GF_REPLICATE_TRASH_DIR;
trash_loc->parent = table->root;
trash_loc->inode = inode_new (table);
}
char *
make_trash_path (const char *path)
{
char *c = NULL;
char *tp = NULL;
tp = GF_CALLOC (strlen ("/" GF_REPLICATE_TRASH_DIR) + strlen (path) + 1, sizeof (char),
gf_afr_mt_char);
strcpy (tp, GF_REPLICATE_TRASH_DIR);
strcat (tp, path);
c = strchr (tp, '/') + 1;
while (*c++)
if (*c == '/')
*c = '-';
return tp;
}
int
afr_sh_entry_expunge_rename (call_frame_t *expunge_frame, xlator_t *this,
int active_src, inode_t *trash_inode)
{
afr_private_t *priv = NULL;
afr_local_t *expunge_local = NULL;
loc_t rename_loc;
priv = this->private;
expunge_local = expunge_frame->local;
rename_loc.inode = inode_ref (expunge_local->loc.inode);
rename_loc.path = make_trash_path (expunge_local->loc.path);
rename_loc.name = strrchr (rename_loc.path, '/') + 1;
rename_loc.parent = trash_inode;
gf_log (this->name, GF_LOG_TRACE,
"moving file/directory %s on %s to %s",
expunge_local->loc.path, priv->children[active_src]->name,
rename_loc.path);
STACK_WIND_COOKIE (expunge_frame, afr_sh_entry_expunge_rename_cbk,
(void *) (long) active_src,
priv->children[active_src],
priv->children[active_src]->fops->rename,
&expunge_local->loc, &rename_loc);
loc_wipe (&rename_loc);
return 0;
}
int
afr_sh_entry_expunge_mkdir_cbk (call_frame_t *expunge_frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, inode_t *inode,
struct iatt *buf, struct iatt *preparent,
struct iatt *postparent)
{
afr_private_t *priv = NULL;
afr_local_t *expunge_local = NULL;
afr_self_heal_t *expunge_sh = NULL;
call_frame_t *frame = NULL;
int active_src = (long) cookie;
inode_t *trash_inode = NULL;
priv = this->private;
expunge_local = expunge_frame->local;
expunge_sh = &expunge_local->self_heal;
frame = expunge_sh->sh_frame;
if (op_ret != 0) {
gf_log (this->name, GF_LOG_ERROR,
"mkdir of /" GF_REPLICATE_TRASH_DIR " failed on %s",
priv->children[active_src]->name);
goto out;
}
/* mkdir successful */
trash_inode = inode_link (inode, expunge_local->loc.inode->table->root,
GF_REPLICATE_TRASH_DIR, buf);
afr_sh_entry_expunge_rename (expunge_frame, this, active_src,
trash_inode);
return 0;
out:
AFR_STACK_DESTROY (expunge_frame);
afr_sh_entry_expunge_entry_done (frame, this, active_src);
return 0;
}
int
afr_sh_entry_expunge_lookup_trash_cbk (call_frame_t *expunge_frame, void *cookie,
xlator_t *this,
int32_t op_ret, int32_t op_errno,
inode_t *inode, struct iatt *buf,
dict_t *xattr, struct iatt *postparent)
{
afr_private_t *priv = NULL;
afr_local_t *expunge_local = NULL;
afr_self_heal_t *expunge_sh = NULL;
call_frame_t *frame = NULL;
int active_src = (long) cookie;
inode_t *trash_inode;
loc_t trash_loc;
priv = this->private;
expunge_local = expunge_frame->local;
expunge_sh = &expunge_local->self_heal;
frame = expunge_sh->sh_frame;
if ((op_ret != 0) && (op_errno == ENOENT)) {
init_trash_loc (&trash_loc, expunge_local->loc.inode->table);
gf_log (this->name, GF_LOG_TRACE,
"creating directory " GF_REPLICATE_TRASH_DIR " on subvolume %s",
priv->children[active_src]->name);
STACK_WIND_COOKIE (expunge_frame, afr_sh_entry_expunge_mkdir_cbk,
(void *) (long) active_src,
priv->children[active_src],
priv->children[active_src]->fops->mkdir,
&trash_loc, 0777);
loc_wipe (&trash_loc);
return 0;
}
if (op_ret != 0) {
gf_log (this->name, GF_LOG_DEBUG,
"lookup of /" GF_REPLICATE_TRASH_DIR " failed on %s",
priv->children[active_src]->name);
goto out;
}
/* lookup successful */
trash_inode = inode_link (inode, expunge_local->loc.inode->table->root,
GF_REPLICATE_TRASH_DIR, buf);
afr_sh_entry_expunge_rename (expunge_frame, this, active_src,
trash_inode);
return 0;
out:
AFR_STACK_DESTROY (expunge_frame);
afr_sh_entry_expunge_entry_done (frame, this, active_src);
return 0;
}
int
afr_sh_entry_expunge_lookup_trash (call_frame_t *expunge_frame, xlator_t *this,
int active_src)
{
afr_private_t *priv = NULL;
afr_local_t *expunge_local = NULL;
inode_t *root = NULL;
inode_t *trash = NULL;
loc_t trash_loc;
priv = this->private;
expunge_local = expunge_frame->local;
root = expunge_local->loc.inode->table->root;
trash = inode_grep (root->table, root, GF_REPLICATE_TRASH_DIR);
if (trash) {
/* inode is in cache, so no need to mkdir */
afr_sh_entry_expunge_rename (expunge_frame, this, active_src,
trash);
return 0;
}
/* Not in cache, so look it up */
init_trash_loc (&trash_loc, expunge_local->loc.inode->table);
gf_log (this->name, GF_LOG_TRACE,
"looking up /" GF_REPLICATE_TRASH_DIR " on %s",
priv->children[active_src]->name);
STACK_WIND_COOKIE (expunge_frame, afr_sh_entry_expunge_lookup_trash_cbk,
(void *) (long) active_src,
priv->children[active_src],
priv->children[active_src]->fops->lookup,
&trash_loc, NULL);
loc_wipe (&trash_loc);
return 0;
}
int
afr_sh_entry_expunge_remove (call_frame_t *expunge_frame, xlator_t *this,
int active_src, struct iatt *buf)
{
afr_private_t *priv = NULL;
afr_local_t *expunge_local = NULL;
afr_self_heal_t *expunge_sh = NULL;
int source = 0;
call_frame_t *frame = NULL;
int type = 0;
priv = this->private;
expunge_local = expunge_frame->local;
expunge_sh = &expunge_local->self_heal;
frame = expunge_sh->sh_frame;
source = expunge_sh->source;
type = buf->ia_type;
switch (type) {
case IA_IFSOCK:
case IA_IFREG:
case IA_IFBLK:
case IA_IFCHR:
case IA_IFIFO:
case IA_IFLNK:
case IA_IFDIR:
afr_sh_entry_expunge_lookup_trash (expunge_frame, this, active_src);
break;
default:
gf_log (this->name, GF_LOG_ERROR,
"%s has unknown file type on %s: 0%o",
expunge_local->loc.path,
priv->children[source]->name, type);
goto out;
break;
}
return 0;
out:
AFR_STACK_DESTROY (expunge_frame);
afr_sh_entry_expunge_entry_done (frame, this, active_src);
return 0;
}
int
afr_sh_entry_expunge_lookup_cbk (call_frame_t *expunge_frame, void *cookie,
xlator_t *this,
int32_t op_ret, int32_t op_errno,
inode_t *inode, struct iatt *buf, dict_t *x,
struct iatt *postparent)
{
afr_private_t *priv = NULL;
afr_local_t *expunge_local = NULL;
afr_self_heal_t *expunge_sh = NULL;
call_frame_t *frame = NULL;
int active_src = 0;
priv = this->private;
expunge_local = expunge_frame->local;
expunge_sh = &expunge_local->self_heal;
frame = expunge_sh->sh_frame;
active_src = (long) cookie;
if (op_ret == -1) {
gf_log (this->name, GF_LOG_TRACE,
"lookup of %s on %s failed (%s)",
expunge_local->loc.path,
priv->children[active_src]->name,
strerror (op_errno));
goto out;
}
afr_sh_entry_expunge_remove (expunge_frame, this, active_src, buf);
return 0;
out:
AFR_STACK_DESTROY (expunge_frame);
afr_sh_entry_expunge_entry_done (frame, this, active_src);
return 0;
}
int
afr_sh_entry_expunge_purge (call_frame_t *expunge_frame, xlator_t *this,
int active_src)
{
afr_private_t *priv = NULL;
afr_local_t *expunge_local = NULL;
priv = this->private;
expunge_local = expunge_frame->local;
gf_log (this->name, GF_LOG_TRACE,
"looking up %s on %s",
expunge_local->loc.path, priv->children[active_src]->name);
STACK_WIND_COOKIE (expunge_frame, afr_sh_entry_expunge_lookup_cbk,
(void *) (long) active_src,
priv->children[active_src],
priv->children[active_src]->fops->lookup,
&expunge_local->loc, 0);
return 0;
}
int
afr_sh_entry_expunge_entry_cbk (call_frame_t *expunge_frame, void *cookie,
xlator_t *this,
int32_t op_ret, int32_t op_errno,
inode_t *inode, struct iatt *buf, dict_t *x,
struct iatt *postparent)
{
afr_private_t *priv = NULL;
afr_local_t *expunge_local = NULL;
afr_self_heal_t *expunge_sh = NULL;
int source = 0;
call_frame_t *frame = NULL;
int active_src = 0;
priv = this->private;
expunge_local = expunge_frame->local;
expunge_sh = &expunge_local->self_heal;
frame = expunge_sh->sh_frame;
active_src = expunge_sh->active_source;
source = (long) cookie;
if (op_ret == -1 && op_errno == ENOENT && postparent) {
gf_log (this->name, GF_LOG_TRACE,
"missing entry %s on %s",
expunge_local->loc.path,
priv->children[source]->name);
expunge_sh->parentbuf = *postparent;
afr_sh_entry_expunge_purge (expunge_frame, this, active_src);
return 0;
}
if (op_ret == 0) {
gf_log (this->name, GF_LOG_TRACE,
"%s exists under %s",
expunge_local->loc.path,
priv->children[source]->name);
} else {
gf_log (this->name, GF_LOG_TRACE,
"looking up %s under %s failed (%s)",
expunge_local->loc.path,
priv->children[source]->name,
strerror (op_errno));
}
AFR_STACK_DESTROY (expunge_frame);
afr_sh_entry_expunge_entry_done (frame, this, active_src);
return 0;
}
int
afr_sh_entry_expunge_entry (call_frame_t *frame, xlator_t *this,
char *name)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
int ret = -1;
call_frame_t *expunge_frame = NULL;
afr_local_t *expunge_local = NULL;
afr_self_heal_t *expunge_sh = NULL;
int active_src = 0;
int source = 0;
int op_errno = 0;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
active_src = sh->active_source;
source = sh->source;
if ((strcmp (name, ".") == 0)
|| (strcmp (name, "..") == 0)
|| ((strcmp (local->loc.path, "/") == 0)
&& (strcmp (name, GF_REPLICATE_TRASH_DIR) == 0))) {
gf_log (this->name, GF_LOG_TRACE,
"skipping inspection of %s under %s",
name, local->loc.path);
goto out;
}
gf_log (this->name, GF_LOG_TRACE,
"inspecting existance of %s under %s",
name, local->loc.path);
expunge_frame = copy_frame (frame);
if (!expunge_frame) {
gf_log (this->name, GF_LOG_ERROR,
"Out of memory.");
goto out;
}
ALLOC_OR_GOTO (expunge_local, afr_local_t, out);
expunge_frame->local = expunge_local;
expunge_sh = &expunge_local->self_heal;
expunge_sh->sh_frame = frame;
expunge_sh->active_source = active_src;
ret = build_child_loc (this, &expunge_local->loc, &local->loc, name);
if (ret != 0) {
goto out;
}
gf_log (this->name, GF_LOG_TRACE,
"looking up %s on %s", expunge_local->loc.path,
priv->children[source]->name);
STACK_WIND_COOKIE (expunge_frame,
afr_sh_entry_expunge_entry_cbk,
(void *) (long) source,
priv->children[source],
priv->children[source]->fops->lookup,
&expunge_local->loc, 0);
ret = 0;
out:
if (ret == -1)
afr_sh_entry_expunge_entry_done (frame, this, active_src);
return 0;
}
int
afr_sh_entry_expunge_readdir_cbk (call_frame_t *frame, void *cookie,
xlator_t *this,
int32_t op_ret, int32_t op_errno,
gf_dirent_t *entries)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
gf_dirent_t *entry = NULL;
off_t last_offset = 0;
int active_src = 0;
int entry_count = 0;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
active_src = sh->active_source;
if (op_ret <= 0) {
if (op_ret < 0) {
gf_log (this->name, GF_LOG_DEBUG,
"readdir of %s on subvolume %s failed (%s)",
local->loc.path,
priv->children[active_src]->name,
strerror (op_errno));
} else {
gf_log (this->name, GF_LOG_TRACE,
"readdir of %s on subvolume %s complete",
local->loc.path,
priv->children[active_src]->name);
}
afr_sh_entry_expunge_all (frame, this);
return 0;
}
list_for_each_entry (entry, &entries->list, list) {
last_offset = entry->d_off;
entry_count++;
}
gf_log (this->name, GF_LOG_TRACE,
"readdir'ed %d entries from %s",
entry_count, priv->children[active_src]->name);
sh->offset = last_offset;
local->call_count = entry_count;
list_for_each_entry (entry, &entries->list, list) {
afr_sh_entry_expunge_entry (frame, this, entry->d_name);
}
return 0;
}
int
afr_sh_entry_expunge_subvol (call_frame_t *frame, xlator_t *this,
int active_src)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
STACK_WIND (frame, afr_sh_entry_expunge_readdir_cbk,
priv->children[active_src],
priv->children[active_src]->fops->readdir,
sh->healing_fd, sh->block_size, sh->offset);
return 0;
}
int
afr_sh_entry_expunge_all (call_frame_t *frame, xlator_t *this)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
int active_src = -1;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
sh->offset = 0;
if (sh->source == -1) {
gf_log (this->name, GF_LOG_TRACE,
"no active sources for %s to expunge entries",
local->loc.path);
goto out;
}
active_src = next_active_sink (frame, this, sh->active_source);
sh->active_source = active_src;
if (sh->op_failed) {
goto out;
}
if (active_src == -1) {
/* completed creating missing files on all subvolumes */
goto out;
}
gf_log (this->name, GF_LOG_TRACE,
"expunging entries of %s on %s to other sinks",
local->loc.path, priv->children[active_src]->name);
afr_sh_entry_expunge_subvol (frame, this, active_src);
return 0;
out:
afr_sh_entry_erase_pending (frame, this);
return 0;
}
int
afr_sh_entry_impunge_all (call_frame_t *frame, xlator_t *this);
int
afr_sh_entry_impunge_subvol (call_frame_t *frame, xlator_t *this,
int active_src);
int
afr_sh_entry_impunge_entry_done (call_frame_t *frame, xlator_t *this,
int active_src)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
int call_count = 0;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
LOCK (&frame->lock);
{
}
UNLOCK (&frame->lock);
call_count = afr_frame_return (frame);
if (call_count == 0)
afr_sh_entry_impunge_subvol (frame, this, active_src);
return 0;
}
int
afr_sh_entry_impunge_setattr_cbk (call_frame_t *impunge_frame, void *cookie,
xlator_t *this,
int32_t op_ret, int32_t op_errno,
struct iatt *preop, struct iatt *postop)
{
int call_count = 0;
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
afr_self_heal_t *impunge_sh = NULL;
call_frame_t *frame = NULL;
int active_src = 0;
int child_index = 0;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
frame = impunge_sh->sh_frame;
local = frame->local;
sh = &local->self_heal;
active_src = sh->active_source;
child_index = (long) cookie;
if (op_ret == 0) {
gf_log (this->name, GF_LOG_TRACE,
"setattr done for %s on %s",
impunge_local->loc.path,
priv->children[child_index]->name);
} else {
gf_log (this->name, GF_LOG_DEBUG,
"setattr (%s) on %s failed (%s)",
impunge_local->loc.path,
priv->children[child_index]->name,
strerror (op_errno));
}
LOCK (&impunge_frame->lock);
{
call_count = --impunge_local->call_count;
}
UNLOCK (&impunge_frame->lock);
if (call_count == 0) {
AFR_STACK_DESTROY (impunge_frame);
afr_sh_entry_impunge_entry_done (frame, this, active_src);
}
return 0;
}
int
afr_sh_entry_impunge_xattrop_cbk (call_frame_t *impunge_frame, void *cookie,
xlator_t *this,
int32_t op_ret, int32_t op_errno,
dict_t *xattr)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
call_frame_t *frame = NULL;
int child_index = 0;
struct iatt stbuf;
int32_t valid = 0;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
frame = impunge_sh->sh_frame;
child_index = (long) cookie;
gf_log (this->name, GF_LOG_TRACE,
"setting ownership of %s on %s to %d/%d",
impunge_local->loc.path,
priv->children[child_index]->name,
impunge_local->cont.lookup.buf.ia_uid,
impunge_local->cont.lookup.buf.ia_gid);
stbuf.ia_atime = impunge_local->cont.lookup.buf.ia_atime;
stbuf.ia_atime_nsec = impunge_local->cont.lookup.buf.ia_atime_nsec;
stbuf.ia_mtime = impunge_local->cont.lookup.buf.ia_mtime;
stbuf.ia_mtime_nsec = impunge_local->cont.lookup.buf.ia_mtime_nsec;
stbuf.ia_uid = impunge_local->cont.lookup.buf.ia_uid;
stbuf.ia_gid = impunge_local->cont.lookup.buf.ia_gid;
valid = GF_SET_ATTR_UID | GF_SET_ATTR_GID |
GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME;
STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_setattr_cbk,
(void *) (long) child_index,
priv->children[child_index],
priv->children[child_index]->fops->setattr,
&impunge_local->loc,
&stbuf, valid);
return 0;
}
int
afr_sh_entry_impunge_parent_setattr_cbk (call_frame_t *setattr_frame,
void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno,
struct iatt *preop, struct iatt *postop)
{
loc_t *parent_loc = cookie;
if (op_ret != 0) {
gf_log (this->name, GF_LOG_DEBUG,
"setattr on parent directory failed: %s",
strerror (op_errno));
}
loc_wipe (parent_loc);
GF_FREE (parent_loc);
AFR_STACK_DESTROY (setattr_frame);
return 0;
}
int
afr_sh_entry_impunge_newfile_cbk (call_frame_t *impunge_frame, void *cookie,
xlator_t *this,
int32_t op_ret, int32_t op_errno,
inode_t *inode, struct iatt *stbuf,
struct iatt *preparent,
struct iatt *postparent)
{
int call_count = 0;
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
call_frame_t *frame = NULL;
int active_src = 0;
int child_index = 0;
int pending_array[3] = {0, };
dict_t *xattr = NULL;
int ret = 0;
int idx = 0;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
call_frame_t *setattr_frame = NULL;
int32_t valid = 0;
loc_t *parent_loc = NULL;
struct iatt parentbuf;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
frame = impunge_sh->sh_frame;
local = frame->local;
sh = &local->self_heal;
active_src = sh->active_source;
child_index = (long) cookie;
if (op_ret == -1) {
gf_log (this->name, GF_LOG_DEBUG,
"creation of %s on %s failed (%s)",
impunge_local->loc.path,
priv->children[child_index]->name,
strerror (op_errno));
goto out;
}
inode->ia_type = stbuf->ia_type;
xattr = get_new_dict ();
dict_ref (xattr);
idx = afr_index_for_transaction_type (AFR_METADATA_TRANSACTION);
pending_array[idx] = hton32 (1);
if (IA_ISDIR (stbuf->ia_type))
idx = afr_index_for_transaction_type (AFR_ENTRY_TRANSACTION);
else
idx = afr_index_for_transaction_type (AFR_DATA_TRANSACTION);
pending_array[idx] = hton32 (1);
ret = dict_set_static_bin (xattr, priv->pending_key[child_index],
pending_array, sizeof (pending_array));
valid = GF_SET_ATTR_ATIME | GF_SET_ATTR_MTIME;
parentbuf = impunge_sh->parentbuf;
setattr_frame = copy_frame (impunge_frame);
parent_loc = GF_CALLOC (1, sizeof (*parent_loc),
gf_afr_mt_loc_t);
afr_build_parent_loc (parent_loc, &impunge_local->loc);
STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_xattrop_cbk,
(void *) (long) child_index,
priv->children[active_src],
priv->children[active_src]->fops->xattrop,
&impunge_local->loc, GF_XATTROP_ADD_ARRAY, xattr);
STACK_WIND_COOKIE (setattr_frame, afr_sh_entry_impunge_parent_setattr_cbk,
(void *) (long) parent_loc,
priv->children[child_index],
priv->children[child_index]->fops->setattr,
parent_loc, &parentbuf, valid);
dict_unref (xattr);
return 0;
out:
LOCK (&impunge_frame->lock);
{
call_count = --impunge_local->call_count;
}
UNLOCK (&impunge_frame->lock);
if (call_count == 0) {
AFR_STACK_DESTROY (impunge_frame);
afr_sh_entry_impunge_entry_done (frame, this, active_src);
}
return 0;
}
int
afr_sh_entry_impunge_mknod (call_frame_t *impunge_frame, xlator_t *this,
int child_index, struct iatt *stbuf)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
gf_log (this->name, GF_LOG_DEBUG,
"creating missing file %s on %s",
impunge_local->loc.path,
priv->children[child_index]->name);
STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_newfile_cbk,
(void *) (long) child_index,
priv->children[child_index],
priv->children[child_index]->fops->mknod,
&impunge_local->loc,
st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type),
stbuf->ia_rdev);
return 0;
}
int
afr_sh_entry_impunge_mkdir (call_frame_t *impunge_frame, xlator_t *this,
int child_index, struct iatt *stbuf)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
gf_log (this->name, GF_LOG_DEBUG,
"creating missing directory %s on %s",
impunge_local->loc.path,
priv->children[child_index]->name);
STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_newfile_cbk,
(void *) (long) child_index,
priv->children[child_index],
priv->children[child_index]->fops->mkdir,
&impunge_local->loc,
st_mode_from_ia (stbuf->ia_prot, stbuf->ia_type));
return 0;
}
int
afr_sh_entry_impunge_symlink (call_frame_t *impunge_frame, xlator_t *this,
int child_index, const char *linkname)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
gf_log (this->name, GF_LOG_DEBUG,
"creating missing symlink %s -> %s on %s",
impunge_local->loc.path, linkname,
priv->children[child_index]->name);
STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_newfile_cbk,
(void *) (long) child_index,
priv->children[child_index],
priv->children[child_index]->fops->symlink,
linkname, &impunge_local->loc);
return 0;
}
int
afr_sh_entry_impunge_symlink_unlink_cbk (call_frame_t *impunge_frame,
void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno,
struct iatt *preparent,
struct iatt *postparent)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
int child_index = -1;
call_frame_t *frame = NULL;
int call_count = -1;
int active_src = -1;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
frame = impunge_sh->sh_frame;
active_src = impunge_sh->active_source;
child_index = (long) cookie;
if (op_ret == -1) {
gf_log (this->name, GF_LOG_DEBUG,
"unlink of %s on %s failed (%s)",
impunge_local->loc.path,
priv->children[child_index]->name,
strerror (op_errno));
goto out;
}
afr_sh_entry_impunge_symlink (impunge_frame, this, child_index,
impunge_sh->linkname);
return 0;
out:
LOCK (&impunge_frame->lock);
{
call_count = --impunge_local->call_count;
}
UNLOCK (&impunge_frame->lock);
if (call_count == 0) {
AFR_STACK_DESTROY (impunge_frame);
afr_sh_entry_impunge_entry_done (frame, this, active_src);
}
return 0;
}
int
afr_sh_entry_impunge_symlink_unlink (call_frame_t *impunge_frame, xlator_t *this,
int child_index)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
gf_log (this->name, GF_LOG_DEBUG,
"unlinking symlink %s with wrong target on %s",
impunge_local->loc.path,
priv->children[child_index]->name);
STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_symlink_unlink_cbk,
(void *) (long) child_index,
priv->children[child_index],
priv->children[child_index]->fops->unlink,
&impunge_local->loc);
return 0;
}
int
afr_sh_entry_impunge_readlink_sink_cbk (call_frame_t *impunge_frame, void *cookie,
xlator_t *this,
int32_t op_ret, int32_t op_errno,
const char *linkname, struct iatt *sbuf)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
int child_index = -1;
call_frame_t *frame = NULL;
int call_count = -1;
int active_src = -1;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
frame = impunge_sh->sh_frame;
active_src = impunge_sh->active_source;
child_index = (long) cookie;
if ((op_ret == -1) && (op_errno != ENOENT)) {
gf_log (this->name, GF_LOG_DEBUG,
"readlink of %s on %s failed (%s)",
impunge_local->loc.path,
priv->children[active_src]->name,
strerror (op_errno));
goto out;
}
/* symlink doesn't exist on the sink */
if ((op_ret == -1) && (op_errno == ENOENT)) {
afr_sh_entry_impunge_symlink (impunge_frame, this,
child_index, impunge_sh->linkname);
return 0;
}
/* symlink exists on the sink, so check if targets match */
if (strcmp (linkname, impunge_sh->linkname) == 0) {
/* targets match, nothing to do */
goto out;
} else {
/*
* Hah! Sneaky wolf in sheep's clothing!
*/
afr_sh_entry_impunge_symlink_unlink (impunge_frame, this,
child_index);
return 0;
}
out:
LOCK (&impunge_frame->lock);
{
call_count = --impunge_local->call_count;
}
UNLOCK (&impunge_frame->lock);
if (call_count == 0) {
AFR_STACK_DESTROY (impunge_frame);
afr_sh_entry_impunge_entry_done (frame, this, active_src);
}
return 0;
}
int
afr_sh_entry_impunge_readlink_sink (call_frame_t *impunge_frame, xlator_t *this,
int child_index)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
gf_log (this->name, GF_LOG_DEBUG,
"checking symlink target of %s on %s",
impunge_local->loc.path, priv->children[child_index]->name);
STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_readlink_sink_cbk,
(void *) (long) child_index,
priv->children[child_index],
priv->children[child_index]->fops->readlink,
&impunge_local->loc, 4096);
return 0;
}
int
afr_sh_entry_impunge_readlink_cbk (call_frame_t *impunge_frame, void *cookie,
xlator_t *this,
int32_t op_ret, int32_t op_errno,
const char *linkname, struct iatt *sbuf)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
int child_index = -1;
call_frame_t *frame = NULL;
int call_count = -1;
int active_src = -1;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
frame = impunge_sh->sh_frame;
active_src = impunge_sh->active_source;
child_index = (long) cookie;
if (op_ret == -1) {
gf_log (this->name, GF_LOG_DEBUG,
"readlink of %s on %s failed (%s)",
impunge_local->loc.path,
priv->children[active_src]->name,
strerror (op_errno));
goto out;
}
impunge_sh->linkname = gf_strdup (linkname);
afr_sh_entry_impunge_readlink_sink (impunge_frame, this, child_index);
return 0;
out:
LOCK (&impunge_frame->lock);
{
call_count = --impunge_local->call_count;
}
UNLOCK (&impunge_frame->lock);
if (call_count == 0) {
AFR_STACK_DESTROY (impunge_frame);
afr_sh_entry_impunge_entry_done (frame, this, active_src);
}
return 0;
}
int
afr_sh_entry_impunge_readlink (call_frame_t *impunge_frame, xlator_t *this,
int child_index, struct iatt *stbuf)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
int active_src = -1;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
active_src = impunge_sh->active_source;
STACK_WIND_COOKIE (impunge_frame, afr_sh_entry_impunge_readlink_cbk,
(void *) (long) child_index,
priv->children[active_src],
priv->children[active_src]->fops->readlink,
&impunge_local->loc, 4096);
return 0;
}
int
afr_sh_entry_impunge_recreate_lookup_cbk (call_frame_t *impunge_frame,
void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno,
inode_t *inode, struct iatt *buf,
dict_t *xattr,struct iatt *postparent)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
int active_src = 0;
int type = 0;
int child_index = 0;
call_frame_t *frame = NULL;
int call_count = 0;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
frame = impunge_sh->sh_frame;
child_index = (long) cookie;
active_src = impunge_sh->active_source;
if (op_ret != 0) {
gf_log (this->name, GF_LOG_TRACE,
"looking up %s on %s (for %s) failed (%s)",
impunge_local->loc.path,
priv->children[active_src]->name,
priv->children[child_index]->name,
strerror (op_errno));
goto out;
}
impunge_sh->parentbuf = *postparent;
impunge_local->cont.lookup.buf = *buf;
type = buf->ia_type;
switch (type) {
case IA_IFSOCK:
case IA_IFREG:
case IA_IFBLK:
case IA_IFCHR:
case IA_IFIFO:
afr_sh_entry_impunge_mknod (impunge_frame, this,
child_index, buf);
break;
case IA_IFLNK:
afr_sh_entry_impunge_readlink (impunge_frame, this,
child_index, buf);
break;
case IA_IFDIR:
afr_sh_entry_impunge_mkdir (impunge_frame, this,
child_index, buf);
break;
default:
gf_log (this->name, GF_LOG_ERROR,
"%s has unknown file type on %s: 0%o",
impunge_local->loc.path,
priv->children[active_src]->name, type);
goto out;
break;
}
return 0;
out:
LOCK (&impunge_frame->lock);
{
call_count = --impunge_local->call_count;
}
UNLOCK (&impunge_frame->lock);
if (call_count == 0) {
AFR_STACK_DESTROY (impunge_frame);
afr_sh_entry_impunge_entry_done (frame, this, active_src);
}
return 0;
}
int
afr_sh_entry_impunge_recreate (call_frame_t *impunge_frame, xlator_t *this,
int child_index)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
int active_src = 0;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
active_src = impunge_sh->active_source;
STACK_WIND_COOKIE (impunge_frame,
afr_sh_entry_impunge_recreate_lookup_cbk,
(void *) (long) child_index,
priv->children[active_src],
priv->children[active_src]->fops->lookup,
&impunge_local->loc, 0);
return 0;
}
int
afr_sh_entry_impunge_entry_cbk (call_frame_t *impunge_frame, void *cookie,
xlator_t *this,
int32_t op_ret, int32_t op_errno,
inode_t *inode, struct iatt *buf, dict_t *x,
struct iatt *postparent)
{
afr_private_t *priv = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
int call_count = 0;
int child_index = 0;
call_frame_t *frame = NULL;
int active_src = 0;
priv = this->private;
impunge_local = impunge_frame->local;
impunge_sh = &impunge_local->self_heal;
frame = impunge_sh->sh_frame;
child_index = (long) cookie;
active_src = impunge_sh->active_source;
if ((op_ret == -1 && op_errno == ENOENT)
|| (IA_ISLNK (impunge_sh->impunging_entry_mode))) {
/*
* A symlink's target might have changed, so
* always go down the recreate path for them.
*/
/* decrease call_count in recreate-callback */
gf_log (this->name, GF_LOG_TRACE,
"missing entry %s on %s",
impunge_local->loc.path,
priv->children[child_index]->name);
afr_sh_entry_impunge_recreate (impunge_frame, this,
child_index);
return 0;
}
if (op_ret == 0) {
gf_log (this->name, GF_LOG_TRACE,
"%s exists under %s",
impunge_local->loc.path,
priv->children[child_index]->name);
impunge_sh->parentbuf = *postparent;
} else {
gf_log (this->name, GF_LOG_TRACE,
"looking up %s under %s failed (%s)",
impunge_local->loc.path,
priv->children[child_index]->name,
strerror (op_errno));
}
LOCK (&impunge_frame->lock);
{
call_count = --impunge_local->call_count;
}
UNLOCK (&impunge_frame->lock);
if (call_count == 0) {
AFR_STACK_DESTROY (impunge_frame);
afr_sh_entry_impunge_entry_done (frame, this, active_src);
}
return 0;
}
int
afr_sh_entry_impunge_entry (call_frame_t *frame, xlator_t *this,
gf_dirent_t *entry)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
int ret = -1;
call_frame_t *impunge_frame = NULL;
afr_local_t *impunge_local = NULL;
afr_self_heal_t *impunge_sh = NULL;
int active_src = 0;
int i = 0;
int call_count = 0;
int op_errno = 0;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
active_src = sh->active_source;
if ((strcmp (entry->d_name, ".") == 0)
|| (strcmp (entry->d_name, "..") == 0)
|| ((strcmp (local->loc.path, "/") == 0)
&& (strcmp (entry->d_name, GF_REPLICATE_TRASH_DIR) == 0))) {
gf_log (this->name, GF_LOG_TRACE,
"skipping inspection of %s under %s",
entry->d_name, local->loc.path);
goto out;
}
gf_log (this->name, GF_LOG_TRACE,
"inspecting existance of %s under %s",
entry->d_name, local->loc.path);
impunge_frame = copy_frame (frame);
if (!impunge_frame) {
gf_log (this->name, GF_LOG_ERROR,
"Out of memory.");
goto out;
}
ALLOC_OR_GOTO (impunge_local, afr_local_t, out);
impunge_frame->local = impunge_local;
impunge_sh = &impunge_local->self_heal;
impunge_sh->sh_frame = frame;
impunge_sh->active_source = active_src;
impunge_sh->impunging_entry_mode =
st_mode_from_ia (entry->d_stat.ia_prot, entry->d_stat.ia_type);
ret = build_child_loc (this, &impunge_local->loc, &local->loc, entry->d_name);
if (ret != 0) {
goto out;
}
for (i = 0; i < priv->child_count; i++) {
if (i == active_src)
continue;
if (local->child_up[i] == 0)
continue;
if (sh->sources[i] == 1)
continue;
call_count++;
}
impunge_local->call_count = call_count;
for (i = 0; i < priv->child_count; i++) {
if (i == active_src)
continue;
if (local->child_up[i] == 0)
continue;
if (sh->sources[i] == 1)
continue;
gf_log (this->name, GF_LOG_TRACE,
"looking up %s on %s", impunge_local->loc.path,
priv->children[i]->name);
STACK_WIND_COOKIE (impunge_frame,
afr_sh_entry_impunge_entry_cbk,
(void *) (long) i,
priv->children[i],
priv->children[i]->fops->lookup,
&impunge_local->loc, 0);
if (!--call_count)
break;
}
ret = 0;
out:
if (ret == -1)
afr_sh_entry_impunge_entry_done (frame, this, active_src);
return 0;
}
int
afr_sh_entry_impunge_readdir_cbk (call_frame_t *frame, void *cookie,
xlator_t *this,
int32_t op_ret, int32_t op_errno,
gf_dirent_t *entries)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
gf_dirent_t *entry = NULL;
off_t last_offset = 0;
int active_src = 0;
int entry_count = 0;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
active_src = sh->active_source;
if (op_ret <= 0) {
if (op_ret < 0) {
gf_log (this->name, GF_LOG_DEBUG,
"readdir of %s on subvolume %s failed (%s)",
local->loc.path,
priv->children[active_src]->name,
strerror (op_errno));
} else {
gf_log (this->name, GF_LOG_TRACE,
"readdir of %s on subvolume %s complete",
local->loc.path,
priv->children[active_src]->name);
}
afr_sh_entry_impunge_all (frame, this);
return 0;
}
list_for_each_entry (entry, &entries->list, list) {
last_offset = entry->d_off;
entry_count++;
}
gf_log (this->name, GF_LOG_TRACE,
"readdir'ed %d entries from %s",
entry_count, priv->children[active_src]->name);
sh->offset = last_offset;
local->call_count = entry_count;
list_for_each_entry (entry, &entries->list, list) {
afr_sh_entry_impunge_entry (frame, this, entry);
}
return 0;
}
int
afr_sh_entry_impunge_subvol (call_frame_t *frame, xlator_t *this,
int active_src)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
STACK_WIND (frame, afr_sh_entry_impunge_readdir_cbk,
priv->children[active_src],
priv->children[active_src]->fops->readdirp,
sh->healing_fd, sh->block_size, sh->offset);
return 0;
}
int
afr_sh_entry_impunge_all (call_frame_t *frame, xlator_t *this)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
int active_src = -1;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
sh->offset = 0;
active_src = next_active_source (frame, this, sh->active_source);
sh->active_source = active_src;
if (sh->op_failed) {
afr_sh_entry_finish (frame, this);
return 0;
}
if (active_src == -1) {
/* completed creating missing files on all subvolumes */
afr_sh_entry_expunge_all (frame, this);
return 0;
}
gf_log (this->name, GF_LOG_TRACE,
"impunging entries of %s on %s to other sinks",
local->loc.path, priv->children[active_src]->name);
afr_sh_entry_impunge_subvol (frame, this, active_src);
return 0;
}
int
afr_sh_entry_opendir_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int32_t op_ret, int32_t op_errno, fd_t *fd)
{
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
afr_private_t *priv = NULL;
int call_count = 0;
int child_index = 0;
local = frame->local;
sh = &local->self_heal;
priv = this->private;
child_index = (long) cookie;
/* TODO: some of the open's might fail.
In that case, modify cleanup fn to send flush on those
fd's which are already open */
LOCK (&frame->lock);
{
if (op_ret == -1) {
gf_log (this->name, GF_LOG_DEBUG,
"opendir of %s failed on child %s (%s)",
local->loc.path,
priv->children[child_index]->name,
strerror (op_errno));
sh->op_failed = 1;
}
}
UNLOCK (&frame->lock);
call_count = afr_frame_return (frame);
if (call_count == 0) {
if (sh->op_failed) {
afr_sh_entry_finish (frame, this);
return 0;
}
gf_log (this->name, GF_LOG_TRACE,
"fd for %s opened, commencing sync",
local->loc.path);
sh->active_source = -1;
afr_sh_entry_impunge_all (frame, this);
}
return 0;
}
int
afr_sh_entry_open (call_frame_t *frame, xlator_t *this)
{
int i = 0;
int call_count = 0;
int source = -1;
int *sources = NULL;
fd_t *fd = NULL;
afr_local_t * local = NULL;
afr_private_t * priv = NULL;
afr_self_heal_t *sh = NULL;
local = frame->local;
sh = &local->self_heal;
priv = this->private;
source = local->self_heal.source;
sources = local->self_heal.sources;
sh->block_size = 131072;
sh->offset = 0;
call_count = sh->active_sinks;
if (source != -1)
call_count++;
local->call_count = call_count;
fd = fd_create (local->loc.inode, frame->root->pid);
sh->healing_fd = fd;
if (source != -1) {
gf_log (this->name, GF_LOG_TRACE,
"opening directory %s on subvolume %s (source)",
local->loc.path, priv->children[source]->name);
/* open source */
STACK_WIND_COOKIE (frame, afr_sh_entry_opendir_cbk,
(void *) (long) source,
priv->children[source],
priv->children[source]->fops->opendir,
&local->loc, fd);
call_count--;
}
/* open sinks */
for (i = 0; i < priv->child_count; i++) {
if (sources[i] || !local->child_up[i])
continue;
gf_log (this->name, GF_LOG_TRACE,
"opening directory %s on subvolume %s (sink)",
local->loc.path, priv->children[i]->name);
STACK_WIND_COOKIE (frame, afr_sh_entry_opendir_cbk,
(void *) (long) i,
priv->children[i],
priv->children[i]->fops->opendir,
&local->loc, fd);
if (!--call_count)
break;
}
return 0;
}
int
afr_sh_entry_sync_prepare (call_frame_t *frame, xlator_t *this)
{
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
afr_private_t *priv = NULL;
int active_sinks = 0;
int source = 0;
int i = 0;
local = frame->local;
sh = &local->self_heal;
priv = this->private;
source = sh->source;
for (i = 0; i < priv->child_count; i++) {
if (sh->sources[i] == 0 && local->child_up[i] == 1) {
active_sinks++;
sh->success[i] = 1;
}
}
if (source != -1)
sh->success[source] = 1;
if (active_sinks == 0) {
gf_log (this->name, GF_LOG_TRACE,
"no active sinks for self-heal on dir %s",
local->loc.path);
afr_sh_entry_finish (frame, this);
return 0;
}
if (source == -1 && active_sinks < 2) {
gf_log (this->name, GF_LOG_TRACE,
"cannot sync with 0 sources and 1 sink on dir %s",
local->loc.path);
afr_sh_entry_finish (frame, this);
return 0;
}
sh->active_sinks = active_sinks;
if (source != -1)
gf_log (this->name, GF_LOG_DEBUG,
"self-healing directory %s from subvolume %s to "
"%d other",
local->loc.path, priv->children[source]->name,
active_sinks);
else
gf_log (this->name, GF_LOG_DEBUG,
"no active sources for %s found. "
"merging all entries as a conservative decision",
local->loc.path);
afr_sh_entry_open (frame, this);
return 0;
}
int
afr_sh_entry_fix (call_frame_t *frame, xlator_t *this)
{
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
afr_private_t *priv = NULL;
int source = 0;
int nsources = 0;
local = frame->local;
sh = &local->self_heal;
priv = this->private;
if (sh->forced_merge) {
sh->source = -1;
goto heal;
}
afr_sh_build_pending_matrix (priv, sh->pending_matrix, sh->xattr,
priv->child_count, AFR_ENTRY_TRANSACTION);
afr_sh_print_pending_matrix (sh->pending_matrix, this);
nsources = afr_sh_mark_sources (sh, priv->child_count,
AFR_SELF_HEAL_ENTRY);
if (nsources == 0) {
gf_log (this->name, GF_LOG_TRACE,
"No self-heal needed for %s",
local->loc.path);
afr_sh_entry_finish (frame, this);
return 0;
}
afr_sh_supress_errenous_children (sh->sources, sh->child_errno,
priv->child_count);
source = afr_sh_select_source (sh->sources, priv->child_count);
sh->source = source;
heal:
afr_sh_entry_sync_prepare (frame, this);
return 0;
}
int
afr_sh_entry_lookup_cbk (call_frame_t *frame, void *cookie,
xlator_t *this, int32_t op_ret, int32_t op_errno,
inode_t *inode, struct iatt *buf, dict_t *xattr,
struct iatt *postparent)
{
afr_private_t *priv = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
int call_count = -1;
int child_index = (long) cookie;
local = frame->local;
sh = &local->self_heal;
priv = this->private;
LOCK (&frame->lock);
{
if (op_ret != -1) {
sh->xattr[child_index] = dict_ref (xattr);
sh->buf[child_index] = *buf;
}
}
UNLOCK (&frame->lock);
call_count = afr_frame_return (frame);
if (call_count == 0) {
afr_sh_entry_fix (frame, this);
}
return 0;
}
int
afr_sh_entry_lookup (call_frame_t *frame, xlator_t *this)
{
afr_self_heal_t * sh = NULL;
afr_local_t * local = NULL;
afr_private_t * priv = NULL;
dict_t *xattr_req = NULL;
int ret = 0;
int call_count = 0;
int i = 0;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
call_count = afr_up_children_count (priv->child_count,
local->child_up);
local->call_count = call_count;
xattr_req = dict_new();
if (xattr_req) {
for (i = 0; i < priv->child_count; i++) {
ret = dict_set_uint64 (xattr_req,
priv->pending_key[i],
3 * sizeof(int32_t));
}
}
for (i = 0; i < priv->child_count; i++) {
if (local->child_up[i]) {
STACK_WIND_COOKIE (frame,
afr_sh_entry_lookup_cbk,
(void *) (long) i,
priv->children[i],
priv->children[i]->fops->lookup,
&local->loc, xattr_req);
if (!--call_count)
break;
}
}
if (xattr_req)
dict_unref (xattr_req);
return 0;
}
int
afr_sh_post_blocking_entry_cbk (call_frame_t *frame, xlator_t *this)
{
afr_internal_lock_t *int_lock = NULL;
afr_local_t *local = NULL;
local = frame->local;
int_lock = &local->internal_lock;
if (int_lock->lock_op_ret < 0) {
gf_log (this->name, GF_LOG_DEBUG,
"Blocking entrylks failed.");
afr_sh_entry_done (frame, this);
} else {
gf_log (this->name, GF_LOG_DEBUG,
"Blocking entrylks done. Proceeding to FOP");
afr_sh_entry_lookup(frame, this);
}
return 0;
}
int
afr_sh_post_nonblocking_entry_cbk (call_frame_t *frame, xlator_t *this)
{
afr_internal_lock_t *int_lock = NULL;
afr_local_t *local = NULL;
local = frame->local;
int_lock = &local->internal_lock;
/* Initiate blocking locks if non-blocking has failed */
if (int_lock->lock_op_ret < 0) {
gf_log (this->name, GF_LOG_DEBUG,
"Non blocking entrylks failed. Proceeding to blocking");
int_lock->lock_cbk = afr_sh_post_blocking_entry_cbk;
afr_blocking_lock (frame, this);
} else {
gf_log (this->name, GF_LOG_DEBUG,
"Non blocking entrylks done. Proceeding to FOP");
afr_sh_entry_lookup(frame, this);
}
return 0;
}
int
afr_sh_entry_lock (call_frame_t *frame, xlator_t *this)
{
afr_internal_lock_t *int_lock = NULL;
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
local = frame->local;
int_lock = &local->internal_lock;
sh = &local->self_heal;
int_lock->transaction_lk_type = AFR_SELFHEAL_LK;
int_lock->selfheal_lk_type = AFR_ENTRY_SELF_HEAL_LK;
afr_set_lock_number (frame, this);
int_lock->lk_basename = NULL;
int_lock->lk_loc = &local->loc;
int_lock->lock_cbk = afr_sh_post_nonblocking_entry_cbk;
afr_nonblocking_entrylk (frame, this);
return 0;
}
int
afr_self_heal_entry (call_frame_t *frame, xlator_t *this)
{
afr_local_t *local = NULL;
afr_self_heal_t *sh = NULL;
afr_private_t *priv = NULL;
priv = this->private;
local = frame->local;
sh = &local->self_heal;
if (local->self_heal.need_entry_self_heal && priv->entry_self_heal) {
afr_sh_entry_lock (frame, this);
} else {
gf_log (this->name, GF_LOG_TRACE,
"proceeding to completion on %s",
local->loc.path);
afr_sh_entry_done (frame, this);
}
return 0;
}
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