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/*-
* Copyright (c) 2014-2019 MongoDB, Inc.
* Copyright (c) 2008-2014 WiredTiger, Inc.
* All rights reserved.
*
* See the file LICENSE for redistribution information.
*/
#include "wt_internal.h"
/*
* __directory_list_worker --
* Get a list of files from a directory, MSVC version.
*/
static int
__directory_list_worker(WT_FILE_SYSTEM *file_system, WT_SESSION *wt_session, const char *directory,
const char *prefix, char ***dirlistp, uint32_t *countp, bool single)
{
DWORD windows_error;
HANDLE findhandle;
WIN32_FIND_DATAW finddata;
WT_DECL_ITEM(pathbuf);
WT_DECL_ITEM(file_utf8);
WT_DECL_ITEM(pathbuf_wide);
WT_DECL_ITEM(prefix_wide);
WT_DECL_RET;
WT_SESSION_IMPL *session;
size_t dirallocsz, pathlen, prefix_widelen;
uint32_t count;
char *dir_copy, **entries;
session = (WT_SESSION_IMPL *)wt_session;
*dirlistp = NULL;
*countp = 0;
findhandle = INVALID_HANDLE_VALUE;
dirallocsz = 0;
entries = NULL;
WT_ERR(__wt_strdup(session, directory, &dir_copy));
pathlen = strlen(dir_copy);
if (dir_copy[pathlen - 1] == '\\')
dir_copy[pathlen - 1] = '\0';
WT_ERR(__wt_scr_alloc(session, pathlen + 3, &pathbuf));
WT_ERR(__wt_buf_fmt(session, pathbuf, "%s\\*", dir_copy));
WT_ERR(__wt_to_utf16_string(session, pathbuf->data, &pathbuf_wide));
WT_ERR(__wt_to_utf16_string(session, prefix, &prefix_wide));
prefix_widelen = wcslen(prefix_wide->data);
findhandle = FindFirstFileW(pathbuf_wide->data, &finddata);
if (findhandle == INVALID_HANDLE_VALUE) {
windows_error = __wt_getlasterror();
ret = __wt_map_windows_error(windows_error);
__wt_err(session, ret, "%s: directory-list: FindFirstFile: %s", pathbuf->data,
__wt_formatmessage(session, windows_error));
WT_ERR(ret);
}
for (count = 0;;) {
/*
* Skip . and ..
*/
if (wcscmp(finddata.cFileName, L".") == 0 || wcscmp(finddata.cFileName, L"..") == 0)
goto skip;
/* The list of files is optionally filtered by a prefix. */
if (prefix != NULL && wcsncmp(finddata.cFileName, prefix_wide->data, prefix_widelen) != 0)
goto skip;
WT_ERR(__wt_realloc_def(session, &dirallocsz, count + 1, &entries));
WT_ERR(__wt_to_utf8_string(session, finddata.cFileName, &file_utf8));
WT_ERR(__wt_strdup(session, file_utf8->data, &entries[count]));
++count;
__wt_scr_free(session, &file_utf8);
if (single)
break;
skip:
if (FindNextFileW(findhandle, &finddata) != 0)
continue;
windows_error = __wt_getlasterror();
if (windows_error == ERROR_NO_MORE_FILES)
break;
ret = __wt_map_windows_error(windows_error);
__wt_err(session, ret, "%s: directory-list: FindNextFileW: %s", pathbuf->data,
__wt_formatmessage(session, windows_error));
WT_ERR(ret);
}
*dirlistp = entries;
*countp = count;
err:
if (findhandle != INVALID_HANDLE_VALUE)
if (FindClose(findhandle) == 0) {
windows_error = __wt_getlasterror();
if (ret == 0)
ret = __wt_map_windows_error(windows_error);
__wt_err(session, ret, "%s: directory-list: FindClose: %s", pathbuf->data,
__wt_formatmessage(session, windows_error));
}
__wt_free(session, dir_copy);
__wt_scr_free(session, &pathbuf);
__wt_scr_free(session, &file_utf8);
__wt_scr_free(session, &pathbuf_wide);
__wt_scr_free(session, &prefix_wide);
if (ret == 0)
return (0);
WT_TRET(__wt_win_directory_list_free(file_system, wt_session, entries, count));
WT_RET_MSG(
session, ret, "%s: directory-list, prefix \"%s\"", directory, prefix == NULL ? "" : prefix);
}
/*
* __wt_win_directory_list --
* Get a list of files from a directory, MSVC version.
*/
int
__wt_win_directory_list(WT_FILE_SYSTEM *file_system, WT_SESSION *wt_session, const char *directory,
const char *prefix, char ***dirlistp, uint32_t *countp)
{
return (
__directory_list_worker(file_system, wt_session, directory, prefix, dirlistp, countp, false));
}
/*
* __wt_win_directory_list_single --
* Get a single file from a directory, MSVC version.
*/
int
__wt_win_directory_list_single(WT_FILE_SYSTEM *file_system, WT_SESSION *wt_session,
const char *directory, const char *prefix, char ***dirlistp, uint32_t *countp)
{
return (
__directory_list_worker(file_system, wt_session, directory, prefix, dirlistp, countp, true));
}
/*
* __wt_win_directory_list_free --
* Free memory returned by __wt_win_directory_list, Windows version.
*/
int
__wt_win_directory_list_free(
WT_FILE_SYSTEM *file_system, WT_SESSION *wt_session, char **dirlist, uint32_t count)
{
WT_SESSION_IMPL *session;
WT_UNUSED(file_system);
session = (WT_SESSION_IMPL *)wt_session;
if (dirlist != NULL) {
while (count > 0)
__wt_free(session, dirlist[--count]);
__wt_free(session, dirlist);
}
return (0);
}
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