import ceph 16.2.7

[ceph.git] / ceph / src / pmdk / src / core / fs_windows.c

diff --git a/ceph/src/pmdk/src/core/fs_windows.c b/ceph/src/pmdk/src/core/fs_windows.c
new file mode 100644 (file)
index 0000000..5fb7c25
--- /dev/null
+++ b/ceph/src/pmdk/src/core/fs_windows.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: BSD-3-Clause
+/* Copyright 2017-2020, Intel Corporation */
+
+/*
+ * fs_windows.c -- file system traversal windows implementation
+ */
+
+#include <windows.h>
+#include "alloc.h"
+#include "fs.h"
+#include "out.h"
+#include "util.h"
+
+struct fs {
+       size_t dirlen;
+       WIN32_FIND_DATAW ffd;
+       HANDLE hFind;
+       int first_done;
+       const char *dir;
+
+       struct fs_entry entry;
+};
+
+/*
+ * fs_new -- creates fs traversal instance
+ */
+struct fs *
+fs_new(const char *path)
+{
+       size_t pathlen = strlen(path);
+       char *search_path = Malloc(strlen(path) + sizeof("\\*\0"));
+       if (search_path == NULL)
+               goto error_spath_alloc;
+
+       strcpy(search_path, path);
+       strcpy(search_path + pathlen, "\\*\0");
+
+       wchar_t *pathw = util_toUTF16(search_path);
+       if (pathw == NULL)
+               goto error_path_alloc;
+
+       struct fs *f = Zalloc(sizeof(*f));
+       if (f == NULL)
+               goto error_fs_alloc;
+
+       f->first_done = 0;
+
+       f->hFind = FindFirstFileW(pathw, &f->ffd);
+       if (f->hFind == INVALID_HANDLE_VALUE)
+               goto error_fff;
+
+       f->dir = path;
+       f->dirlen = pathlen;
+       util_free_UTF16(pathw);
+       Free(search_path);
+
+       return f;
+
+error_fff:
+       Free(f);
+error_fs_alloc:
+       util_free_UTF16(pathw);
+error_path_alloc:
+       Free(search_path);
+error_spath_alloc:
+       return NULL;
+}
+
+/*
+ * fs_read -- reads an entry from the fs path
+ */
+struct fs_entry *
+fs_read(struct fs *f)
+{
+       util_free_UTF8((char *)f->entry.name);
+       Free((char *)f->entry.path);
+       f->entry.name = NULL;
+       f->entry.path = NULL;
+
+       if (f->first_done) {
+               if (FindNextFileW(f->hFind, &f->ffd) == 0)
+                       return NULL;
+       } else {
+               f->first_done = 1;
+       }
+
+       if (f->ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY)
+               f->entry.type = FS_ENTRY_DIRECTORY;
+       else
+               f->entry.type = FS_ENTRY_FILE;
+
+       f->entry.name = util_toUTF8(f->ffd.cFileName);
+       if (f->entry.name == NULL)
+               return NULL;
+       f->entry.namelen = strnlen(f->entry.name, MAX_PATH);
+
+       f->entry.pathlen = f->dirlen + f->entry.namelen + 1;
+       char *path = Zalloc(f->entry.pathlen + 1);
+       if (path == NULL) {
+               util_free_UTF8((char *)f->entry.name);
+               return NULL;
+       }
+       strcpy(path, f->dir);
+       path[f->dirlen] = '\\';
+       strcpy(path + f->dirlen + 1, f->entry.name);
+       f->entry.path = path;
+       f->entry.level = 1;
+
+       return &f->entry;
+}
+
+/*
+ * fs_delete -- deletes a fs traversal instance
+ */
+void
+fs_delete(struct fs *f)
+{
+       util_free_UTF8((char *)f->entry.name);
+       Free((char *)f->entry.path);
+
+       FindClose(f->hFind);
+       Free(f);
+}