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/*-
* Copyright (c) 2014-2016 MongoDB, Inc.
* Copyright (c) 2008-2014 WiredTiger, Inc.
* All rights reserved.
*
* See the file LICENSE for redistribution information.
*/
#include "wt_internal.h"
/*
* __wt_dirlist --
* Get a list of files from a directory, optionally filtered by
* a given prefix.
*/
int
__wt_dirlist(WT_SESSION_IMPL *session, const char *dir, const char *prefix,
uint32_t flags, char ***dirlist, u_int *countp)
{
HANDLE findhandle;
WIN32_FIND_DATA finddata;
WT_DECL_ITEM(pathbuf);
WT_DECL_RET;
size_t dirallocsz, pathlen;
u_int count, dirsz;
bool match;
char **entries, *path;
*dirlist = NULL;
*countp = 0;
findhandle = INVALID_HANDLE_VALUE;
count = 0;
WT_RET(__wt_filename(session, dir, &path));
pathlen = strlen(path);
if (path[pathlen - 1] == '\\') {
path[pathlen - 1] = '\0';
}
WT_ERR(__wt_scr_alloc(session, pathlen + 3, &pathbuf));
WT_ERR(__wt_buf_fmt(session, pathbuf, "%s\\*", path));
dirallocsz = 0;
dirsz = 0;
entries = NULL;
if (flags == 0)
LF_SET(WT_DIRLIST_INCLUDE);
WT_ERR(__wt_verbose(session, WT_VERB_FILEOPS,
"wt_dirlist of %s %s prefix %s",
pathbuf->data, LF_ISSET(WT_DIRLIST_INCLUDE) ? "include" : "exclude",
prefix == NULL ? "all" : prefix));
findhandle = FindFirstFileA(pathbuf->data, &finddata);
if (INVALID_HANDLE_VALUE == findhandle)
WT_ERR_MSG(session, __wt_errno(), "%s: FindFirstFile",
pathbuf->data);
else {
do {
/*
* Skip . and ..
*/
if (strcmp(finddata.cFileName, ".") == 0 ||
strcmp(finddata.cFileName, "..") == 0)
continue;
match = false;
if (prefix != NULL &&
((LF_ISSET(WT_DIRLIST_INCLUDE) &&
WT_PREFIX_MATCH(finddata.cFileName, prefix)) ||
(LF_ISSET(WT_DIRLIST_EXCLUDE) &&
!WT_PREFIX_MATCH(finddata.cFileName, prefix))))
match = true;
if (prefix == NULL || match) {
/*
* We have a file name we want to return.
*/
count++;
if (count > dirsz) {
dirsz += WT_DIR_ENTRY;
WT_ERR(__wt_realloc_def(session,
&dirallocsz, dirsz, &entries));
}
WT_ERR(__wt_strdup(session,
finddata.cFileName, &entries[count - 1]));
}
} while (FindNextFileA(findhandle, &finddata) != 0);
}
if (count > 0)
*dirlist = entries;
*countp = count;
err:
if (findhandle != INVALID_HANDLE_VALUE)
(void)FindClose(findhandle);
__wt_free(session, path);
__wt_scr_free(session, &pathbuf);
if (ret == 0)
return (0);
if (*dirlist != NULL) {
for (count = dirsz; count > 0; count--)
__wt_free(session, entries[count]);
__wt_free(session, entries);
}
WT_RET_MSG(session, ret, "dirlist %s prefix %s", dir, prefix);
}
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