Most of XamContent* methods, besides enumeration.

Progress on #152.

src/poly/fs.h

@@ -0,0 +1,41 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2015 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef POLY_FS_H_
+#define POLY_FS_H_
+
+#include <string>
+
+#include "poly/config.h"
+#include "poly/string.h"
+
+namespace poly {
+namespace fs {
+
+bool PathExists(const std::wstring& path);
+
+bool CreateFolder(const std::wstring& path);
+
+bool DeleteFolder(const std::wstring& path);
+
+struct FileInfo {
+  enum class Type {
+    kFile,
+    kDirectory,
+  };
+  Type type;
+  std::wstring name;
+  size_t total_size;
+};
+std::vector<FileInfo> ListFiles(const std::wstring& path);
+
+}  // namespace fs
+}  // namespace poly
+
+#endif  // POLY_FS_H_

src/poly/fs_win.cc

@@ -0,0 +1,70 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2015 Ben Vanik. All rights reserved.                             *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#include "poly/fs.h"
+
+#include <shellapi.h>
+
+#include <string>
+
+#include "poly/platform.h"
+
+namespace poly {
+namespace fs {
+
+bool PathExists(const std::wstring& path) {
+  DWORD attrib = GetFileAttributes(path.c_str());
+  return attrib != INVALID_FILE_ATTRIBUTES;
+}
+
+bool CreateFolder(const std::wstring& path) {
+  wchar_t folder[MAX_PATH] = {0};
+  auto end = std::wcschr(path.c_str(), L'\\');
+  while (end) {
+    wcsncpy(folder, path.c_str(), end - path.c_str() + 1);
+    CreateDirectory(folder, NULL);
+    end = wcschr(++end, L'\\');
+  }
+  return PathExists(path);
+}
+
+bool DeleteFolder(const std::wstring& path) {
+  auto double_null_path = path + L"\0";
+  SHFILEOPSTRUCT op = {0};
+  op.wFunc = FO_DELETE;
+  op.pFrom = double_null_path.c_str();
+  op.fFlags = FOF_NO_UI;
+  return SHFileOperation(&op) == 0;
+}
+
+std::vector<FileInfo> ListFiles(const std::wstring& path) {
+  std::vector<FileInfo> result;
+
+  WIN32_FIND_DATA ffd;
+  HANDLE handle = FindFirstFile(path.c_str(), &ffd);
+  if (handle == INVALID_HANDLE_VALUE) {
+    return result;
+  }
+  do {
+    FileInfo info;
+    if (ffd.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) {
+      info.type = FileInfo::Type::kDirectory;
+    } else {
+      info.type = FileInfo::Type::kFile;
+      info.total_size = (ffd.nFileSizeHigh * (MAXDWORD + 1)) + ffd.nFileSizeLow;
+    }
+    result.push_back(info);
+  } while (FindNextFile(handle, &ffd) != 0);
+  FindClose(handle);
+
+  return result;
+}
+
+}  // namespace fs
+}  // namespace poly

src/poly/sources.gypi

@@ -8,6 +8,7 @@
     'delegate.h',
     'config.h',
     'cxx_compat.h',
+    'fs.h',
     'logging.cc',
     'logging.h',
     'main.h',
@@ -45,6 +46,7 @@
     ['OS == "win"', {
       'sources': [
         'debugging_win.cc',
+        'fs_win.cc',
         'main_win.cc',
         'mapped_memory_win.cc',
         'threading_win.cc',