feat: add file_stream and subprocess_windows

include/thespian/c/file_stream.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#include <stdint.h> // NOLINT
+
+#if defined(_WIN32)
+
+// NOLINTBEGIN(modernize-use-trailing-return-type)
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct thespian_file_stream_handle;
+struct thespian_file_stream_handle *thespian_file_stream_create(const char *tag,
+                                                                void *handle);
+int thespian_file_stream_start_read(struct thespian_file_stream_handle *);
+int thespian_file_stream_start_write(struct thespian_file_stream_handle *,
+                                     const char *, size_t);
+int thespian_file_stream_cancel(struct thespian_file_stream_handle *);
+void thespian_file_stream_destroy(struct thespian_file_stream_handle *);
+
+#ifdef __cplusplus
+}
+#endif
+// NOLINTEND(modernize-use-trailing-return-type)
+
+#endif

include/thespian/file_descriptor.hpp

@@ -1,8 +1,9 @@
 #pragma once
 
+#if !defined(_WIN32)
+
 #include <memory>
 #include <string_view>
-#include <vector>
 
 namespace thespian {
 
@@ -30,3 +31,5 @@ struct file_descriptor {
 };
 
 } // namespace thespian
+
+#endif

include/thespian/file_stream.hpp

@@ -0,0 +1,34 @@
+#pragma once
+
+#if defined(_WIN32)
+
+#include <memory>
+#include <string_view>
+
+namespace thespian {
+
+struct file_stream_impl;
+using file_stream_dtor = void (*)(file_stream_impl *);
+using file_stream_ref = std::unique_ptr<file_stream_impl, file_stream_dtor>;
+
+struct file_stream {
+  static auto create(std::string_view tag, void *handle) -> file_stream;
+  auto start_read() -> void;
+  auto start_write(std::string_view data) -> void;
+  auto cancel() -> void;
+  static void start_read(file_stream_impl *);
+  static void start_write(file_stream_impl *, std::string_view data);
+  static void cancel(file_stream_impl *);
+  static void destroy(file_stream_impl *);
+
+  //->("stream", tag, "read_complete")
+  //->("stream", tag, "read_error", int err, string message)
+  //->("stream", tag, "write_complete", int bytes_written)
+  //->("stream", tag, "write_error", int err, string message)
+
+  file_stream_ref ref;
+};
+
+} // namespace thespian
+
+#endif