835 lines
23 KiB
C
Executable File
835 lines
23 KiB
C
Executable File
/* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
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* vim:expandtab:shiftwidth=8:tabstop=8:
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*/
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/*
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* Copyright (C) 2018-2019 Intel Corporation
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*
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* GOVERNMENT LICENSE RIGHTS-OPEN SOURCE SOFTWARE
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* The Government's rights to use, modify, reproduce, release, perform, display,
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* or disclose this software are subject to the terms of the Apache License as
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* provided in Contract No. 8F-30005.
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* Any reproduction of computer software, computer software documentation, or
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* portions thereof marked with this legend must also reproduce the markings.
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*/
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/*
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* This file implements the abstract I/O interface for DAOS FS API.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <string.h>
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#include <assert.h>
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#include <errno.h>
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#include <stdio.h>
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#include <dirent.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <libgen.h>
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#include <gurt/common.h>
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#include <gurt/hash.h>
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#include <daos.h>
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#include <daos_fs.h>
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#include "ior.h"
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#include "iordef.h"
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#include "aiori.h"
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#include "utilities.h"
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dfs_t *dfs;
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daos_handle_t poh, coh;
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static struct d_hash_table *dir_hash;
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struct aiori_dir_hdl {
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d_list_t entry;
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dfs_obj_t *oh;
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char name[PATH_MAX];
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};
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enum handleType {
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POOL_HANDLE,
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CONT_HANDLE,
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ARRAY_HANDLE
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};
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/************************** O P T I O N S *****************************/
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struct dfs_options{
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char *pool;
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char *svcl;
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char *group;
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char *cont;
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int destroy;
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};
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static struct dfs_options o = {
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.pool = NULL,
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.svcl = NULL,
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.group = NULL,
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.cont = NULL,
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.destroy = 0,
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};
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static option_help options [] = {
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{0, "dfs.pool", "DAOS pool uuid", OPTION_REQUIRED_ARGUMENT, 's', & o.pool},
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{0, "dfs.svcl", "DAOS pool SVCL", OPTION_REQUIRED_ARGUMENT, 's', & o.svcl},
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{0, "dfs.group", "DAOS server group", OPTION_OPTIONAL_ARGUMENT, 's', & o.group},
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{0, "dfs.cont", "DFS container uuid", OPTION_REQUIRED_ARGUMENT, 's', & o.cont},
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{0, "dfs.destroy", "Destroy DFS Container", OPTION_FLAG, 'd', &o.destroy},
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LAST_OPTION
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};
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/**************************** P R O T O T Y P E S *****************************/
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static void *DFS_Create(char *, IOR_param_t *);
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static void *DFS_Open(char *, IOR_param_t *);
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static IOR_offset_t DFS_Xfer(int, void *, IOR_size_t *,
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IOR_offset_t, IOR_param_t *);
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static void DFS_Close(void *, IOR_param_t *);
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static void DFS_Delete(char *, IOR_param_t *);
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static char* DFS_GetVersion();
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static void DFS_Fsync(void *, IOR_param_t *);
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static IOR_offset_t DFS_GetFileSize(IOR_param_t *, MPI_Comm, char *);
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static int DFS_Statfs (const char *, ior_aiori_statfs_t *, IOR_param_t *);
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static int DFS_Stat (const char *, struct stat *, IOR_param_t *);
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static int DFS_Mkdir (const char *, mode_t, IOR_param_t *);
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static int DFS_Rmdir (const char *, IOR_param_t *);
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static int DFS_Access (const char *, int, IOR_param_t *);
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static void DFS_Init();
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static void DFS_Finalize();
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static option_help * DFS_options();
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/************************** D E C L A R A T I O N S ***************************/
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ior_aiori_t dfs_aiori = {
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.name = "DFS",
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.create = DFS_Create,
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.open = DFS_Open,
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.xfer = DFS_Xfer,
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.close = DFS_Close,
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.delete = DFS_Delete,
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.get_version = DFS_GetVersion,
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.fsync = DFS_Fsync,
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.get_file_size = DFS_GetFileSize,
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.statfs = DFS_Statfs,
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.mkdir = DFS_Mkdir,
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.rmdir = DFS_Rmdir,
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.access = DFS_Access,
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.stat = DFS_Stat,
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.initialize = DFS_Init,
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.finalize = DFS_Finalize,
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.get_options = DFS_options,
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};
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/***************************** F U N C T I O N S ******************************/
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/* For DAOS methods. */
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#define DCHECK(rc, format, ...) \
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do { \
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int _rc = (rc); \
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\
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if (_rc < 0) { \
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fprintf(stderr, "ERROR (%s:%d): %d: %d: " \
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format"\n", __FILE__, __LINE__, rank, _rc, \
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##__VA_ARGS__); \
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fflush(stderr); \
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exit(-1); \
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} \
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} while (0)
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#define DERR(rc, format, ...) \
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do { \
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int _rc = (rc); \
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\
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if (_rc < 0) { \
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fprintf(stderr, "ERROR (%s:%d): %d: %d: " \
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format"\n", __FILE__, __LINE__, rank, _rc, \
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##__VA_ARGS__); \
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fflush(stderr); \
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goto out; \
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} \
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} while (0)
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static inline struct aiori_dir_hdl *
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hdl_obj(d_list_t *rlink)
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{
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return container_of(rlink, struct aiori_dir_hdl, entry);
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}
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static bool
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key_cmp(struct d_hash_table *htable, d_list_t *rlink,
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const void *key, unsigned int ksize)
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{
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struct aiori_dir_hdl *hdl = hdl_obj(rlink);
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return (strcmp(hdl->name, (const char *)key) == 0);
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}
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static void
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rec_free(struct d_hash_table *htable, d_list_t *rlink)
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{
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struct aiori_dir_hdl *hdl = hdl_obj(rlink);
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assert(d_hash_rec_unlinked(&hdl->entry));
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dfs_release(hdl->oh);
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free(hdl);
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}
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static d_hash_table_ops_t hdl_hash_ops = {
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.hop_key_cmp = key_cmp,
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.hop_rec_free = rec_free
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};
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/* Distribute process 0's pool or container handle to others. */
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static void
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HandleDistribute(daos_handle_t *handle, enum handleType type)
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{
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d_iov_t global;
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int rc;
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global.iov_buf = NULL;
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global.iov_buf_len = 0;
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global.iov_len = 0;
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assert(type == POOL_HANDLE || type == CONT_HANDLE);
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if (rank == 0) {
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/* Get the global handle size. */
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if (type == POOL_HANDLE)
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rc = daos_pool_local2global(*handle, &global);
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else
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rc = daos_cont_local2global(*handle, &global);
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DCHECK(rc, "Failed to get global handle size");
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}
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MPI_CHECK(MPI_Bcast(&global.iov_buf_len, 1, MPI_UINT64_T, 0,
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MPI_COMM_WORLD),
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"Failed to bcast global handle buffer size");
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global.iov_len = global.iov_buf_len;
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global.iov_buf = malloc(global.iov_buf_len);
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if (global.iov_buf == NULL)
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ERR("Failed to allocate global handle buffer");
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if (rank == 0) {
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if (type == POOL_HANDLE)
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rc = daos_pool_local2global(*handle, &global);
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else
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rc = daos_cont_local2global(*handle, &global);
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DCHECK(rc, "Failed to create global handle");
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}
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MPI_CHECK(MPI_Bcast(global.iov_buf, global.iov_buf_len, MPI_BYTE, 0,
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MPI_COMM_WORLD),
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"Failed to bcast global pool handle");
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if (rank != 0) {
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if (type == POOL_HANDLE)
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rc = daos_pool_global2local(global, handle);
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else
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rc = daos_cont_global2local(poh, global, handle);
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DCHECK(rc, "Failed to get local handle");
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}
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free(global.iov_buf);
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}
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static int
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parse_filename(const char *path, char **_obj_name, char **_cont_name)
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{
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char *f1 = NULL;
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char *f2 = NULL;
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char *fname = NULL;
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char *cont_name = NULL;
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int rc = 0;
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if (path == NULL || _obj_name == NULL || _cont_name == NULL)
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return -EINVAL;
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if (strcmp(path, "/") == 0) {
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*_cont_name = strdup("/");
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if (*_cont_name == NULL)
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return -ENOMEM;
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*_obj_name = NULL;
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return 0;
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}
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f1 = strdup(path);
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if (f1 == NULL) {
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rc = -ENOMEM;
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goto out;
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}
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f2 = strdup(path);
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if (f2 == NULL) {
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rc = -ENOMEM;
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goto out;
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}
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fname = basename(f1);
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cont_name = dirname(f2);
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if (cont_name[0] == '.' || cont_name[0] != '/') {
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char cwd[1024];
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if (getcwd(cwd, 1024) == NULL) {
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rc = -ENOMEM;
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goto out;
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}
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if (strcmp(cont_name, ".") == 0) {
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cont_name = strdup(cwd);
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if (cont_name == NULL) {
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rc = -ENOMEM;
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goto out;
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}
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} else {
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char *new_dir = calloc(strlen(cwd) + strlen(cont_name)
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+ 1, sizeof(char));
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if (new_dir == NULL) {
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rc = -ENOMEM;
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goto out;
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}
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strcpy(new_dir, cwd);
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if (cont_name[0] == '.') {
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strcat(new_dir, &cont_name[1]);
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} else {
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strcat(new_dir, "/");
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strcat(new_dir, cont_name);
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}
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cont_name = new_dir;
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}
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*_cont_name = cont_name;
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} else {
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*_cont_name = strdup(cont_name);
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if (*_cont_name == NULL) {
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rc = -ENOMEM;
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goto out;
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}
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}
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*_obj_name = strdup(fname);
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if (*_obj_name == NULL) {
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free(*_cont_name);
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*_cont_name = NULL;
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rc = -ENOMEM;
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goto out;
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}
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out:
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if (f1)
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free(f1);
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if (f2)
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free(f2);
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return rc;
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}
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static dfs_obj_t *
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lookup_insert_dir(const char *name)
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{
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struct aiori_dir_hdl *hdl;
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d_list_t *rlink;
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mode_t mode;
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int rc;
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rlink = d_hash_rec_find(dir_hash, name, strlen(name));
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if (rlink != NULL) {
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hdl = hdl_obj(rlink);
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return hdl->oh;
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}
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hdl = calloc(1, sizeof(struct aiori_dir_hdl));
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if (hdl == NULL)
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DERR(ENOMEM, "failed to alloc dir handle");
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strncpy(hdl->name, name, PATH_MAX-1);
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hdl->name[PATH_MAX-1] = '\0';
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rc = dfs_lookup(dfs, name, O_RDWR, &hdl->oh, &mode);
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DERR(rc, "dfs_lookup() of %s Failed", name);
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rc = d_hash_rec_insert(dir_hash, hdl->name, strlen(hdl->name),
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&hdl->entry, true);
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DERR(rc, "Failed to insert dir handle in hashtable");
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return hdl->oh;
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out:
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return NULL;
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}
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static option_help * DFS_options(){
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return options;
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}
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static void
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DFS_Init() {
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int rc;
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if (o.pool == NULL || o.svcl == NULL || o.cont == NULL)
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ERR("Invalid pool or container options\n");
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rc = daos_init();
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DCHECK(rc, "Failed to initialize daos");
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rc = d_hash_table_create(0, 16, NULL, &hdl_hash_ops, &dir_hash);
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DCHECK(rc, "Failed to initialize dir hashtable");
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if (rank == 0) {
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uuid_t pool_uuid, co_uuid;
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d_rank_list_t *svcl = NULL;
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daos_pool_info_t pool_info;
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daos_cont_info_t co_info;
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rc = uuid_parse(o.pool, pool_uuid);
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DCHECK(rc, "Failed to parse 'Pool uuid': %s", o.pool);
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rc = uuid_parse(o.cont, co_uuid);
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DCHECK(rc, "Failed to parse 'Cont uuid': %s", o.cont);
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svcl = daos_rank_list_parse(o.svcl, ":");
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if (svcl == NULL)
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ERR("Failed to allocate svcl");
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if (verbose >= VERBOSE_1) {
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printf("Pool uuid = %s, SVCL = %s\n", o.pool, o.svcl);
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printf("DFS Container namespace uuid = %s\n", o.cont);
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}
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/** Connect to DAOS pool */
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rc = daos_pool_connect(pool_uuid, o.group, svcl, DAOS_PC_RW,
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&poh, &pool_info, NULL);
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d_rank_list_free(svcl);
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DCHECK(rc, "Failed to connect to pool");
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rc = daos_cont_open(poh, co_uuid, DAOS_COO_RW, &coh, &co_info,
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NULL);
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/* If NOEXIST we create it */
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if (rc == -DER_NONEXIST) {
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if (verbose >= VERBOSE_1)
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printf("Creating DFS Container ...\n");
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rc = daos_cont_create(poh, co_uuid, NULL, NULL);
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if (rc == 0) {
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rc = daos_cont_open(poh, co_uuid, DAOS_COO_RW,
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&coh, &co_info, NULL);
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}
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}
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DCHECK(rc, "Failed to create container");
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}
|
|
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HandleDistribute(&poh, POOL_HANDLE);
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HandleDistribute(&coh, CONT_HANDLE);
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|
|
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rc = dfs_mount(poh, coh, O_RDWR, &dfs);
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DCHECK(rc, "Failed to mount DFS namespace");
|
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}
|
|
|
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static void
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DFS_Finalize()
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{
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int rc;
|
|
|
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d_hash_table_destroy(dir_hash, true /* force */);
|
|
|
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rc = dfs_umount(dfs);
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DCHECK(rc, "Failed to umount DFS namespace");
|
|
|
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rc = daos_cont_close(coh, NULL);
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DCHECK(rc, "Failed to close container");
|
|
|
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if (rank == 0 && o.destroy) {
|
|
uuid_t uuid;
|
|
|
|
if (verbose >= VERBOSE_1)
|
|
printf("Destorying DFS Container: %s\n", o.cont);
|
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uuid_parse(o.cont, uuid);
|
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rc = daos_cont_destroy(poh, uuid, 1, NULL);
|
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}
|
|
|
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MPI_Bcast(&rc, 1, MPI_INT, 0, MPI_COMM_WORLD);
|
|
if (rc)
|
|
DCHECK(rc, "Failed to destroy container %s (%d)", o.cont, rc);
|
|
|
|
daos_pool_disconnect(poh, NULL);
|
|
DCHECK(rc, "Failed to disconnect from pool");
|
|
|
|
rc = daos_fini();
|
|
DCHECK(rc, "Failed to finalize DAOS");
|
|
}
|
|
|
|
/*
|
|
* Creat and open a file through the DFS interface.
|
|
*/
|
|
static void *
|
|
DFS_Create(char *testFileName, IOR_param_t *param)
|
|
{
|
|
char *name = NULL, *dir_name = NULL;
|
|
dfs_obj_t *obj = NULL, *parent = NULL;
|
|
mode_t mode;
|
|
int fd_oflag = 0;
|
|
int rc;
|
|
|
|
assert(param);
|
|
|
|
rc = parse_filename(testFileName, &name, &dir_name);
|
|
DERR(rc, "Failed to parse path %s", testFileName);
|
|
assert(dir_name);
|
|
assert(name);
|
|
|
|
parent = lookup_insert_dir(dir_name);
|
|
if (parent == NULL)
|
|
DERR(rc, "Failed to lookup parent dir");
|
|
|
|
mode = S_IFREG | param->mode;
|
|
if (param->filePerProc || rank == 0) {
|
|
fd_oflag |= O_CREAT | O_RDWR | O_EXCL;
|
|
|
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rc = dfs_open(dfs, parent, name, mode, fd_oflag,
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OC_SX, 0, NULL, &obj);
|
|
DERR(rc, "dfs_open() of %s Failed", name);
|
|
} else {
|
|
fd_oflag |= O_RDWR;
|
|
rc = dfs_open(dfs, parent, name, mode, fd_oflag,
|
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OC_SX, 0, NULL, &obj);
|
|
DERR(rc, "dfs_open() of %s Failed", name);
|
|
}
|
|
|
|
out:
|
|
if (name)
|
|
free(name);
|
|
if (dir_name)
|
|
free(dir_name);
|
|
|
|
return ((void *)obj);
|
|
}
|
|
|
|
/*
|
|
* Open a file through the DFS interface.
|
|
*/
|
|
static void *
|
|
DFS_Open(char *testFileName, IOR_param_t *param)
|
|
{
|
|
char *name = NULL, *dir_name = NULL;
|
|
dfs_obj_t *obj = NULL, *parent = NULL;
|
|
mode_t mode;
|
|
int rc;
|
|
int fd_oflag = 0;
|
|
|
|
fd_oflag |= O_RDWR;
|
|
mode = S_IFREG | param->mode;
|
|
|
|
rc = parse_filename(testFileName, &name, &dir_name);
|
|
DERR(rc, "Failed to parse path %s", testFileName);
|
|
|
|
assert(dir_name);
|
|
assert(name);
|
|
|
|
parent = lookup_insert_dir(dir_name);
|
|
if (parent == NULL)
|
|
DERR(rc, "Failed to lookup parent dir");
|
|
|
|
rc = dfs_open(dfs, parent, name, mode, fd_oflag, 0, 0, NULL, &obj);
|
|
DERR(rc, "dfs_open() of %s Failed", name);
|
|
|
|
out:
|
|
if (name)
|
|
free(name);
|
|
if (dir_name)
|
|
free(dir_name);
|
|
|
|
return ((void *)obj);
|
|
}
|
|
|
|
/*
|
|
* Write or read access to file using the DFS interface.
|
|
*/
|
|
static IOR_offset_t
|
|
DFS_Xfer(int access, void *file, IOR_size_t *buffer, IOR_offset_t length,
|
|
IOR_param_t *param)
|
|
{
|
|
int xferRetries = 0;
|
|
long long remaining = (long long)length;
|
|
char *ptr = (char *)buffer;
|
|
daos_size_t ret;
|
|
int rc;
|
|
dfs_obj_t *obj;
|
|
|
|
obj = (dfs_obj_t *)file;
|
|
|
|
while (remaining > 0) {
|
|
d_iov_t iov;
|
|
d_sg_list_t sgl;
|
|
|
|
/** set memory location */
|
|
sgl.sg_nr = 1;
|
|
sgl.sg_nr_out = 0;
|
|
d_iov_set(&iov, (void *)ptr, remaining);
|
|
sgl.sg_iovs = &iov;
|
|
|
|
/* write/read file */
|
|
if (access == WRITE) {
|
|
rc = dfs_write(dfs, obj, sgl, param->offset);
|
|
if (rc) {
|
|
fprintf(stderr, "dfs_write() failed (%d)", rc);
|
|
return -1;
|
|
}
|
|
ret = remaining;
|
|
} else {
|
|
rc = dfs_read(dfs, obj, sgl, param->offset, &ret);
|
|
if (rc || ret == 0)
|
|
fprintf(stderr, "dfs_read() failed(%d)", rc);
|
|
}
|
|
|
|
if (ret < remaining) {
|
|
if (param->singleXferAttempt == TRUE)
|
|
exit(-1);
|
|
if (xferRetries > MAX_RETRY)
|
|
ERR("too many retries -- aborting");
|
|
}
|
|
|
|
assert(ret >= 0);
|
|
assert(ret <= remaining);
|
|
remaining -= ret;
|
|
ptr += ret;
|
|
xferRetries++;
|
|
}
|
|
|
|
return (length);
|
|
}
|
|
|
|
/*
|
|
* Perform fsync().
|
|
*/
|
|
static void
|
|
DFS_Fsync(void *fd, IOR_param_t * param)
|
|
{
|
|
dfs_sync(dfs);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Close a file through the DFS interface.
|
|
*/
|
|
static void
|
|
DFS_Close(void *fd, IOR_param_t * param)
|
|
{
|
|
dfs_release((dfs_obj_t *)fd);
|
|
}
|
|
|
|
/*
|
|
* Delete a file through the DFS interface.
|
|
*/
|
|
static void
|
|
DFS_Delete(char *testFileName, IOR_param_t * param)
|
|
{
|
|
char *name = NULL, *dir_name = NULL;
|
|
dfs_obj_t *parent = NULL;
|
|
int rc;
|
|
|
|
rc = parse_filename(testFileName, &name, &dir_name);
|
|
DERR(rc, "Failed to parse path %s", testFileName);
|
|
|
|
assert(dir_name);
|
|
assert(name);
|
|
|
|
parent = lookup_insert_dir(dir_name);
|
|
if (parent == NULL)
|
|
DERR(rc, "Failed to lookup parent dir");
|
|
|
|
rc = dfs_remove(dfs, parent, name, false);
|
|
DERR(rc, "dfs_remove() of %s Failed", name);
|
|
|
|
out:
|
|
if (name)
|
|
free(name);
|
|
if (dir_name)
|
|
free(dir_name);
|
|
}
|
|
|
|
static char* DFS_GetVersion()
|
|
{
|
|
static char ver[1024] = {};
|
|
|
|
sprintf(ver, "%s", "DAOS");
|
|
return ver;
|
|
}
|
|
|
|
/*
|
|
* Use DFS stat() to return aggregate file size.
|
|
*/
|
|
static IOR_offset_t
|
|
DFS_GetFileSize(IOR_param_t * test, MPI_Comm comm, char *testFileName)
|
|
{
|
|
dfs_obj_t *obj;
|
|
daos_size_t fsize, tmpMin, tmpMax, tmpSum;
|
|
int rc;
|
|
|
|
rc = dfs_lookup(dfs, testFileName, O_RDONLY, &obj, NULL);
|
|
if (rc) {
|
|
fprintf(stderr, "dfs_lookup() of %s Failed (%d)", testFileName, rc);
|
|
return -1;
|
|
}
|
|
|
|
rc = dfs_get_size(dfs, obj, &fsize);
|
|
if (rc)
|
|
return -1;
|
|
|
|
dfs_release(obj);
|
|
|
|
if (test->filePerProc == TRUE) {
|
|
MPI_CHECK(MPI_Allreduce(&fsize, &tmpSum, 1,
|
|
MPI_LONG_LONG_INT, MPI_SUM, comm),
|
|
"cannot total data moved");
|
|
fsize = tmpSum;
|
|
} else {
|
|
MPI_CHECK(MPI_Allreduce(&fsize, &tmpMin, 1,
|
|
MPI_LONG_LONG_INT, MPI_MIN, comm),
|
|
"cannot total data moved");
|
|
MPI_CHECK(MPI_Allreduce(&fsize, &tmpMax, 1,
|
|
MPI_LONG_LONG_INT, MPI_MAX, comm),
|
|
"cannot total data moved");
|
|
if (tmpMin != tmpMax) {
|
|
if (rank == 0) {
|
|
WARN("inconsistent file size by different tasks");
|
|
}
|
|
/* incorrect, but now consistent across tasks */
|
|
fsize = tmpMin;
|
|
}
|
|
}
|
|
|
|
return (fsize);
|
|
}
|
|
|
|
static int
|
|
DFS_Statfs(const char *path, ior_aiori_statfs_t *sfs, IOR_param_t * param)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
DFS_Mkdir(const char *path, mode_t mode, IOR_param_t * param)
|
|
{
|
|
dfs_obj_t *parent = NULL;
|
|
char *name = NULL, *dir_name = NULL;
|
|
int rc;
|
|
|
|
rc = parse_filename(path, &name, &dir_name);
|
|
DERR(rc, "Failed to parse path %s", path);
|
|
|
|
assert(dir_name);
|
|
if (!name)
|
|
return 0;
|
|
|
|
parent = lookup_insert_dir(dir_name);
|
|
if (parent == NULL)
|
|
DERR(rc, "Failed to lookup parent dir");
|
|
|
|
rc = dfs_mkdir(dfs, parent, name, mode);
|
|
DERR(rc, "dfs_mkdir() of %s Failed", name);
|
|
|
|
out:
|
|
if (name)
|
|
free(name);
|
|
if (dir_name)
|
|
free(dir_name);
|
|
if (rc)
|
|
return -1;
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
DFS_Rmdir(const char *path, IOR_param_t * param)
|
|
{
|
|
dfs_obj_t *parent = NULL;
|
|
char *name = NULL, *dir_name = NULL;
|
|
int rc;
|
|
|
|
rc = parse_filename(path, &name, &dir_name);
|
|
DERR(rc, "Failed to parse path %s", path);
|
|
|
|
assert(dir_name);
|
|
assert(name);
|
|
|
|
parent = lookup_insert_dir(dir_name);
|
|
if (parent == NULL)
|
|
DERR(rc, "Failed to lookup parent dir");
|
|
|
|
rc = dfs_remove(dfs, parent, name, false);
|
|
DERR(rc, "dfs_remove() of %s Failed", name);
|
|
|
|
out:
|
|
if (name)
|
|
free(name);
|
|
if (dir_name)
|
|
free(dir_name);
|
|
if (rc)
|
|
return -1;
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
DFS_Access(const char *path, int mode, IOR_param_t * param)
|
|
{
|
|
dfs_obj_t *parent = NULL;
|
|
char *name = NULL, *dir_name = NULL;
|
|
struct stat stbuf;
|
|
int rc;
|
|
|
|
rc = parse_filename(path, &name, &dir_name);
|
|
DERR(rc, "Failed to parse path %s", path);
|
|
|
|
assert(dir_name);
|
|
|
|
parent = lookup_insert_dir(dir_name);
|
|
if (parent == NULL)
|
|
DERR(rc, "Failed to lookup parent dir");
|
|
|
|
if (name && strcmp(name, ".") == 0) {
|
|
free(name);
|
|
name = NULL;
|
|
}
|
|
rc = dfs_stat(dfs, parent, name, &stbuf);
|
|
|
|
out:
|
|
if (name)
|
|
free(name);
|
|
if (dir_name)
|
|
free(dir_name);
|
|
if (rc)
|
|
return -1;
|
|
return rc;
|
|
}
|
|
|
|
static int
|
|
DFS_Stat(const char *path, struct stat *buf, IOR_param_t * param)
|
|
{
|
|
dfs_obj_t *parent = NULL;
|
|
char *name = NULL, *dir_name = NULL;
|
|
int rc;
|
|
|
|
rc = parse_filename(path, &name, &dir_name);
|
|
DERR(rc, "Failed to parse path %s", path);
|
|
|
|
assert(dir_name);
|
|
assert(name);
|
|
|
|
parent = lookup_insert_dir(dir_name);
|
|
if (parent == NULL)
|
|
DERR(rc, "Failed to lookup parent dir");
|
|
|
|
rc = dfs_stat(dfs, parent, name, buf);
|
|
DERR(rc, "dfs_stat() of %s Failed", name);
|
|
|
|
out:
|
|
if (name)
|
|
free(name);
|
|
if (dir_name)
|
|
free(dir_name);
|
|
if (rc)
|
|
return -1;
|
|
return rc;
|
|
}
|