From 246eb9266b9349b44cbe96f3f839124ab30cbb89 Mon Sep 17 00:00:00 2001
From: Yuqian Yang <crupest@crupest.life>
Date: Sat, 15 Nov 2025 16:43:25 +0800
Subject: Impl win subprocess.

---
 include/cru/base/io/Base.h         | 62 ++++++++++++++++++++++++++++++++++++++
 include/cru/base/io/OpenFileFlag.h | 56 ----------------------------------
 include/cru/base/io/Stream.h       |  2 +-
 3 files changed, 63 insertions(+), 57 deletions(-)
 create mode 100644 include/cru/base/io/Base.h
 delete mode 100644 include/cru/base/io/OpenFileFlag.h

(limited to 'include/cru/base/io')

diff --git a/include/cru/base/io/Base.h b/include/cru/base/io/Base.h
new file mode 100644
index 00000000..d5e2abff
--- /dev/null
+++ b/include/cru/base/io/Base.h
@@ -0,0 +1,62 @@
+#pragma once
+
+#include "../Base.h"
+#include "../Bitmask.h"
+
+namespace cru::io {
+class CRU_BASE_API FileNotExistException : public Exception {
+ public:
+  using Exception::Exception;
+};
+
+namespace details {
+struct OpenFileFlagTag {};
+}  // namespace details
+using OpenFileFlag = Bitmask<details::OpenFileFlagTag>;
+
+struct OpenFileFlags {
+  /**
+   * \brief for reading
+   * If the file does not exist, FileNotExistException should be thrown.
+   */
+  static constexpr OpenFileFlag Read{0x1};
+
+  /**
+   * \brief for writing
+   * If the file does not exist and Create is not specified,
+   * FileNotExistException should be thrown.
+   */
+  static constexpr OpenFileFlag Write{0x2};
+
+  /**
+   * \brief when writing, seek to end first
+   * Only effective for writing.
+   */
+  static constexpr OpenFileFlag Append{0x4};
+
+  /**
+   * \brief when writing, truncate the file to empty
+   * Only effective for writing.
+   * So the content is erased! Be careful!
+   */
+  static constexpr OpenFileFlag Truncate{0x8};
+
+  /**
+   * \brief when writing, if the file does not exist, create one
+   * Only effective for writing. When file does not exist, FileNotExistException
+   * will NOT be thrown and a new file will be created.
+   */
+  static constexpr OpenFileFlag Create{0x10};
+
+  /**
+   *  TODO: ???
+   */
+  static constexpr OpenFileFlag Exclusive{0x20};
+};
+
+/**
+ * Append, Truncate, Create must be used with Write.
+ * Append and Truncate must not be used together.
+ */
+bool CheckOpenFileFlag(OpenFileFlag flags);
+}  // namespace cru::io
diff --git a/include/cru/base/io/OpenFileFlag.h b/include/cru/base/io/OpenFileFlag.h
deleted file mode 100644
index 4a5789fb..00000000
--- a/include/cru/base/io/OpenFileFlag.h
+++ /dev/null
@@ -1,56 +0,0 @@
-#pragma once
-
-#include "../Bitmask.h"
-
-namespace cru::io {
-namespace details {
-struct OpenFileFlagTag {};
-}  // namespace details
-using OpenFileFlag = Bitmask<details::OpenFileFlagTag>;
-
-struct OpenFileFlags {
-  /**
-   * \brief for reading
-   * If the file does not exist, FileNotExistException should be thrown.
-   */
-  static constexpr OpenFileFlag Read{0x1};
-
-  /**
-   * \brief for writing
-   * If the file does not exist and Create is not specified,
-   * FileNotExistException should be thrown.
-   */
-  static constexpr OpenFileFlag Write{0x2};
-
-  /**
-   * \brief when writing, seek to end first
-   * Only effective for writing.
-   */
-  static constexpr OpenFileFlag Append{0x4};
-
-  /**
-   * \brief when writing, truncate the file to empty
-   * Only effective for writing.
-   * So the content is erased! Be careful!
-   */
-  static constexpr OpenFileFlag Truncate{0x8};
-
-  /**
-   * \brief when writing, if the file does not exist, create one
-   * Only effective for writing. When file does not exist, FileNotExistException
-   * will NOT be thrown and a new file will be created.
-   */
-  static constexpr OpenFileFlag Create{0x10};
-
-  /**
-   *  TODO: ???
-   */
-  static constexpr OpenFileFlag Exclusive{0x20};
-};
-
-/**
- * Append, Truncate, Create must be used with Write.
- * Append and Truncate must not be used together.
- */
-bool CheckOpenFileFlag(OpenFileFlag flags);
-}  // namespace cru::io
diff --git a/include/cru/base/io/Stream.h b/include/cru/base/io/Stream.h
index 503ccd27..cbcb3ced 100644
--- a/include/cru/base/io/Stream.h
+++ b/include/cru/base/io/Stream.h
@@ -113,7 +113,7 @@ class CRU_BASE_API Stream : public Object {
   void CheckClosed() { StreamClosedException::Check(closed_); }
 
  private:
-  std::optional<SupportedOperations> supported_operations_;
+  SupportedOperations supported_operations_;
   bool closed_;
 };
 }  // namespace cru::io
-- 
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