void rozofs_ll_open_nb(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi) {
ientry_t *ie = 0;
int ret;
void *buffer_p = NULL;
epgw_mfile_arg_t arg;
file_t *file = NULL;
errno = 0;
/*
** Update the IO statistics
*/
rozofs_thr_cnt_update(rozofs_thr_counter[ROZOFSMOUNT_COUNTER_OTHER], 1);
int trc_idx = rozofs_trc_req_flags(srv_rozofs_ll_open,ino,NULL,fi->flags);
/*
** allocate a context for saving the fuse parameters
*/
buffer_p = rozofs_fuse_alloc_saved_context();
if (buffer_p == NULL)
{
severe("out of fuse saved context");
errno = ENOMEM;
goto error;
}
SAVE_FUSE_PARAM(buffer_p,req);
SAVE_FUSE_PARAM(buffer_p,ino);
SAVE_FUSE_PARAM(buffer_p,trc_idx);
SAVE_FUSE_STRUCT(buffer_p,fi,sizeof( struct fuse_file_info));
START_PROFILING_NB(buffer_p,rozofs_ll_open);
DEBUG("open (%lu)\n", (unsigned long int) ino);
if (!(ie = get_ientry_by_inode(ino))) {
errno = ENOENT;
goto error;
}
/*
** check if it is configured in block mode, in that case we avoid
** a transaction with the exportd
*/
if ((rozofs_mode == 1) ||
((ie->timestamp+rozofs_tmr_get_attr_us(rozofs_is_directory_inode(ino))) > rozofs_get_ticker_us()))
{
/*
** allocate a context for the file descriptor
*/
file = rozofs_file_working_var_init(ie,ie->fid);
if (rozofs_cache_mode == 1)
fi->direct_io = 1;
else
{
if (rozofs_cache_mode == 2)
fi->keep_cache = 1;
}
/*
** save the opening flags
*/
file->open_flags = fi->flags;
fi->fh = (unsigned long) file;
/*
** update the statistics
*/
rzkpi_file_stat_update(ie->pfid,(int)0,RZKPI_OPEN);
/*
** Take care of the file caching cache for hybrid SSD/HDD configuration
*/
rzcachetrack_file(ie->pfid,ie->attrs.attrs.size,ie->attrs.attrs.mtime);
/*
** send back response to fuse
*/
fuse_reply_open(req, fi);
goto out;
}
/*
** get the attributes of the file
*/
arg.arg_gw.eid = exportclt.eid;
memcpy(arg.arg_gw.fid, ie->fid, sizeof (uuid_t));
/*
** now initiates the transaction towards the remote end
*/
/*
** In case the EXPORT LBG is down and we know this ientry, let's respond to
** the requester with the current available information
*/
if (common_config.client_fast_reconnect) {
expgw_tx_routing_ctx_t routing_ctx;
if (expgw_get_export_routing_lbg_info(arg.arg_gw.eid,ie->fid,&routing_ctx) != 0) {
goto error;
}
if (north_lbg_get_state(routing_ctx.lbg_id[0]) != NORTH_LBG_UP) {
goto short_cut;
}
}
#if 1
ret = rozofs_expgateway_send_routing_common(arg.arg_gw.eid,ie->fid,EXPORT_PROGRAM, EXPORT_VERSION,
EP_GETATTR,(xdrproc_t) xdr_epgw_mfile_arg_t,(void *)&arg,
rozofs_ll_open_cbk,buffer_p);
#else
ret = rozofs_export_send_common(&exportclt,EXPORT_PROGRAM, EXPORT_VERSION,
EP_GETATTR,(xdrproc_t) xdr_epgw_mfile_arg_t,(void *)&arg,
rozofs_ll_open_cbk,buffer_p);
#endif
if (ret < 0) {
/*
** In case of fast reconnect mode let's respond with the previously knows
** parameters instead of failing
*/
if (common_config.client_fast_reconnect) {
short_cut:
/*
** allocate a context for the file descriptor
*/
file = rozofs_file_working_var_init(ie,ie->fid);
if (rozofs_cache_mode == 1)
fi->direct_io = 1;
else
{
if (rozofs_cache_mode == 2)
fi->keep_cache = 1;
}
/*
** save the opening flags
*/
file->open_flags = fi->flags;
fi->fh = (unsigned long) file;
/*
** update the statistics
*/
rzkpi_file_stat_update(ie->pfid,(int)0,RZKPI_OPEN);
/*
** Take care of the file caching cache for hybrid SSD/HDD configuration
*/
rzcachetrack_file(ie->pfid,ie->attrs.attrs.size,ie->attrs.attrs.mtime);
/*
** send back response to fuse
*/
fuse_reply_open(req, fi);
goto out;
}
goto error;
}
/*
** no error just waiting for the answer
*/
return;
error:
fuse_reply_err(req, errno);
/*
** release the buffer if has been allocated
*/
out:
rozofs_trc_rsp_attr(srv_rozofs_ll_open,(fuse_ino_t)file,(ie==NULL)?NULL:ie->attrs.attrs.fid,(errno==0)?0:1,(ie==NULL)?-1:ie->attrs.attrs.size,trc_idx);
STOP_PROFILING_NB(buffer_p,rozofs_ll_open);
if (buffer_p != NULL) rozofs_fuse_release_saved_context(buffer_p);
return;
}
void rozofs_ll_open_nb(fuse_req_t req, fuse_ino_t ino, struct fuse_file_info *fi) {
ientry_t *ie = 0;
int ret;
void *buffer_p = NULL;
epgw_mfile_arg_t arg;
file_t *file = NULL;
errno = 0;
int trc_idx = rozofs_trc_req(srv_rozofs_ll_open,ino,NULL);
/*
** allocate a context for saving the fuse parameters
*/
buffer_p = rozofs_fuse_alloc_saved_context();
if (buffer_p == NULL)
{
severe("out of fuse saved context");
errno = ENOMEM;
goto error;
}
SAVE_FUSE_PARAM(buffer_p,req);
SAVE_FUSE_PARAM(buffer_p,ino);
SAVE_FUSE_PARAM(buffer_p,trc_idx);
SAVE_FUSE_STRUCT(buffer_p,fi,sizeof( struct fuse_file_info));
START_PROFILING_NB(buffer_p,rozofs_ll_open);
DEBUG("open (%lu)\n", (unsigned long int) ino);
if (!(ie = get_ientry_by_inode(ino))) {
errno = ENOENT;
goto error;
}
/*
** check if it is configured in block mode, in that case we avoid
** a transaction with the exportd
*/
if ((rozofs_mode == 1) ||
((ie->timestamp+rozofs_tmr_get(TMR_FUSE_ATTR_CACHE)*1000000) > rozofs_get_ticker_us()))
{
/*
** allocate a context for the file descriptor
*/
file = rozofs_file_working_var_init(ie,ie->fid);
if (rozofs_cache_mode == 1)
fi->direct_io = 1;
else
{
if (rozofs_cache_mode == 2)
fi->keep_cache = 1;
}
fi->fh = (unsigned long) file;
/*
** update the statistics
*/
rzkpi_file_stat_update(ie->pfid,(int)0,RZKPI_OPEN);
/*
** send back response to fuse
*/
fuse_reply_open(req, fi);
goto out;
}
/*
** get the attributes of the file
*/
arg.arg_gw.eid = exportclt.eid;
memcpy(arg.arg_gw.fid, ie->fid, sizeof (uuid_t));
/*
** now initiates the transaction towards the remote end
*/
#if 1
ret = rozofs_expgateway_send_routing_common(arg.arg_gw.eid,ie->fid,EXPORT_PROGRAM, EXPORT_VERSION,
EP_GETATTR,(xdrproc_t) xdr_epgw_mfile_arg_t,(void *)&arg,
rozofs_ll_open_cbk,buffer_p);
#else
ret = rozofs_export_send_common(&exportclt,EXPORT_PROGRAM, EXPORT_VERSION,
EP_GETATTR,(xdrproc_t) xdr_epgw_mfile_arg_t,(void *)&arg,
rozofs_ll_open_cbk,buffer_p);
#endif
if (ret < 0) goto error;
/*
** no error just waiting for the answer
*/
return;
error:
fuse_reply_err(req, errno);
/*
** release the buffer if has been allocated
*/
out:
rozofs_trc_rsp_attr(srv_rozofs_ll_open,(fuse_ino_t)file,(ie==NULL)?NULL:ie->attrs.fid,(errno==0)?0:1,(ie==NULL)?-1:ie->attrs.size,trc_idx);
STOP_PROFILING_NB(buffer_p,rozofs_ll_open);
if (buffer_p != NULL) rozofs_fuse_release_saved_context(buffer_p);
return;
}
