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|
#include "mem-types.h"
#include "libxlator.h"
/*Copy the contents of oldtimebuf to newtimbuf*/
static void
update_timebuf (uint32_t *oldtimbuf, uint32_t *newtimebuf)
{
newtimebuf[0] = (oldtimbuf[0]);
newtimebuf[1] = (oldtimbuf[1]);
}
/* Convert Timebuf in network order to host order */
static void
get_hosttime (uint32_t *oldtimbuf, uint32_t *newtimebuf)
{
newtimebuf[0] = ntohl (oldtimbuf[0]);
newtimebuf[1] = ntohl (oldtimbuf[1]);
}
/* Match the Incoming trusted.glusterfs.<uuid>.xtime against volume uuid */
int
match_uuid_local (const char *name, char *uuid)
{
name = strtail ((char *)name, MARKER_XATTR_PREFIX);
if (!name || name++[0] != '.')
return -1;
name = strtail ((char *)name, uuid);
if (!name || strcmp (name, ".xtime") != 0)
return -1;
return 0;
}
/* Aggregate all the <volid>.xtime attrs of the cluster and send the max*/
int32_t
cluster_markerxtime_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int op_ret, int op_errno, dict_t *dict)
{
int32_t callcnt = 0;
int ret = -1;
uint32_t *net_timebuf;
uint32_t host_timebuf[2];
char *marker_xattr;
struct marker_str *local;
char *vol_uuid;
if (!this || !frame || !frame->local || !cookie) {
gf_log (this->name, GF_LOG_DEBUG, "possible NULL deref");
goto out;
}
local = frame->local;
if (!local || !local->vol_uuid) {
gf_log (this->name, GF_LOG_DEBUG, "possible NULL deref");
goto out;
}
if (local->esomerr) {
LOCK (&frame->lock);
{
callcnt = --local->call_count;
}
goto done;
}
vol_uuid = local->vol_uuid;
if (op_ret && op_errno == ENODATA) {
LOCK (&frame->lock);
{
callcnt = --local->call_count;
local->enodata_count++;
}
goto done;
}
if (op_ret && op_errno == ENOENT) {
LOCK (&frame->lock);
{
callcnt = --local->call_count;
local->enoent_count++;
}
goto done;
}
if (op_ret && op_errno == ENOTCONN) {
LOCK (&frame->lock);
{
callcnt = --local->call_count;
local->enotconn_count++;
}
goto done;
}
if (op_ret) {
LOCK (&frame->lock);
{
callcnt = --local->call_count;
local->esomerr = op_errno;
}
goto done;
}
LOCK (&frame->lock);
{
callcnt = --local->call_count;
if (!gf_asprintf (& marker_xattr, "%s.%s.%s",
MARKER_XATTR_PREFIX, vol_uuid, XTIME)) {
op_errno = ENOMEM;
goto done;
}
if (dict_get_ptr (dict, marker_xattr, (void **)&net_timebuf)) {
gf_log (this->name, GF_LOG_WARNING,
"Unable to get <uuid>.xtime attr");
local->noxtime_count++;
goto done;
}
if (local->has_xtime) {
get_hosttime (net_timebuf, host_timebuf);
if ( (host_timebuf[0]>local->host_timebuf[0]) ||
(host_timebuf[0] == local->host_timebuf[0] &&
host_timebuf[1] >= local->host_timebuf[1])) {
update_timebuf (net_timebuf, local->net_timebuf);
update_timebuf (host_timebuf, local->host_timebuf);
}
}
else {
get_hosttime (net_timebuf, local->host_timebuf);
update_timebuf (net_timebuf, local->net_timebuf);
local->has_xtime = _gf_true;
}
}
done:
UNLOCK (&frame->lock);
if (!callcnt) {
op_ret = 0;
op_errno = 0;
if (local->has_xtime) {
if (!dict) {
dict = dict_new();
if (ret) {
op_ret = -1;
op_errno = ENOMEM;
goto out;
}
}
ret = dict_set_static_bin (dict, marker_xattr,
(void *)local->net_timebuf, 8);
if (ret) {
op_ret = -1;
op_errno = ENOMEM;
goto out;
}
goto out;
}
if (local->noxtime_count)
goto out;
if (local->enodata_count) {
op_ret = -1;
op_errno = ENODATA;
goto out;
}
if (local->enotconn_count) {
op_ret = -1;
op_errno = ENOTCONN;
goto out;
}
if (local->enoent_count) {
op_ret = -1;
op_errno = ENOENT;
goto out;
}
else {
op_errno = local->esomerr;
goto out;
}
out:
if (local->xl_specf_unwind) {
frame->local = local->xl_local;
local->xl_specf_unwind (frame, op_ret,
op_errno, dict);
return 0;
}
STACK_UNWIND_STRICT (getxattr, frame, op_ret, op_errno, dict);
}
return 0;
}
int32_t
cluster_markeruuid_cbk (call_frame_t *frame, void *cookie, xlator_t *this,
int op_ret, int op_errno, dict_t *dict)
{
int32_t callcnt = 0;
data_t *data = NULL;
struct volume_mark *volmark = NULL;
struct marker_str *marker = NULL;
char *vol_uuid;
if (!this || !frame || !cookie) {
gf_log (this->name, GF_LOG_DEBUG, "possible NULL deref");
goto out;
}
marker = frame->local;
if (!marker) {
gf_log (this->name, GF_LOG_DEBUG, "possible NULL deref");
goto out;
}
vol_uuid = marker->vol_uuid;
if (op_ret && (ENOENT == op_errno)) {
LOCK (&frame->lock);
{
callcnt = --marker->call_count;
marker->enoent_count++;
}
goto done;
}
if (op_ret && (ENOTCONN == op_errno)) {
LOCK (&frame->lock);
{
callcnt = --marker->call_count;
marker->enotconn_count++;
}
goto done;
}
if (!(data = dict_get (dict, GF_XATTR_MARKER_KEY))) {
LOCK (&frame->lock);
{
callcnt = --marker->call_count;
}
goto done;
}
volmark = (struct volume_mark *)data->data;
LOCK (&frame->lock);
{
callcnt = --marker->call_count;
if (marker_has_volinfo (marker)) {
if ((marker->volmark->major != volmark->major) ||
(marker->volmark->minor != volmark->minor)) {
op_ret = -1;
op_errno = EINVAL;
goto done;
}
else if (volmark->retval) {
data_unref ((data_t *) marker->volmark);
marker->volmark = volmark;
callcnt = 0;
}
else if ( (volmark->sec > marker->volmark->sec) ||
((volmark->sec == marker->volmark->sec)
&& (volmark->usec >= marker->volmark->usec))) {
GF_FREE (marker->volmark);
marker->volmark = memdup (volmark, sizeof (struct volume_mark));
VALIDATE_OR_GOTO (marker->volmark, done);
}
} else {
marker->volmark = memdup (volmark, sizeof (struct volume_mark));
VALIDATE_OR_GOTO (marker->volmark, done);
uuid_unparse (volmark->uuid, vol_uuid);
if (volmark->retval)
callcnt = 0;
}
}
done:
UNLOCK (&frame->lock);
if (!callcnt) {
op_ret = 0;
op_errno = 0;
if (marker_has_volinfo (marker)) {
if (!dict) {
dict = dict_new();
if (!dict) {
op_ret = -1;
op_errno = ENOMEM;
goto out;
}
}
if (dict_set_bin (dict, GF_XATTR_MARKER_KEY,
marker->volmark,
sizeof (struct volume_mark))) {
op_ret = -1;
op_errno = ENOMEM;
}
goto out;
}
if (marker->enotconn_count) {
op_ret = -1;
op_errno = ENOTCONN;
goto out;
}
if (marker->enoent_count) {
op_ret = -1;
op_errno = ENOENT;
}
else {
op_ret = -1;
op_errno = EINVAL;
}
out:
if (marker->xl_specf_unwind) {
frame->local = marker->xl_local;
marker->xl_specf_unwind (frame, op_ret,
op_errno, dict);
return 0;
}
STACK_UNWIND_STRICT (getxattr, frame, op_ret, op_errno, dict);
}
return 0;
}
int32_t
cluster_getmarkerattr (call_frame_t *frame,xlator_t *this, loc_t *loc,
const char *name, void *xl_local,
xlator_specf_unwind_t xl_specf_getxattr_unwind,
xlator_t **sub_volumes, int count, int type,
char *vol_uuid)
{
int i;
struct marker_str *local;
VALIDATE_OR_GOTO (frame, err);
VALIDATE_OR_GOTO (this, err);
VALIDATE_OR_GOTO (loc, err);
VALIDATE_OR_GOTO (loc->path, err);
VALIDATE_OR_GOTO (loc->inode, err);
VALIDATE_OR_GOTO (name, err);
VALIDATE_OR_GOTO (xl_specf_getxattr_unwind, err);
local = GF_CALLOC (sizeof (struct marker_str), 1,
gf_common_mt_libxl_marker_local);
local->xl_local = xl_local;
frame->local = local;
local->call_count = count;
local->xl_specf_unwind = xl_specf_getxattr_unwind;
local->vol_uuid = vol_uuid;
for (i=0; i < count; i++) {
if (MARKER_UUID_TYPE == type)
STACK_WIND (frame, cluster_markeruuid_cbk,
*(sub_volumes + i),
(*(sub_volumes + i))->fops->getxattr,
loc, name);
else if (MARKER_XTIME_TYPE == type)
STACK_WIND (frame, cluster_markerxtime_cbk,
*(sub_volumes + i),
(*(sub_volumes + i))->fops->getxattr,
loc, name);
else {
gf_log (this->name, GF_LOG_WARNING,
"Unrecognized type of marker attr recived");
STACK_WIND (frame, default_getxattr_cbk,
*(sub_volumes + i),
(*(sub_volumes + i))->fops->getxattr,
loc, name);
break;
}
}
return 0;
err:
return -1;
}
|
