1 files changed, 39 insertions, 29 deletions

diff --git a/include/fud_file.hpp b/include/fud_file.hpp
index 9ef2cbc..51826a6 100644
--- a/include/fud_file.hpp
+++ b/include/fud_file.hpp
@@ -18,12 +18,13 @@
 #ifndef FUD_FILE_HPP
 #define FUD_FILE_HPP
 
-#include "fud_allocator.hpp"
 #include "fud_option.hpp"
 #include "fud_permissions.hpp"
 #include "fud_result.hpp"
 #include "fud_status.hpp"
 #include "fud_string_view.hpp"
+#include "fud_vector.hpp"
+#include "fud_drain.hpp"
 
 #include <fcntl.h>
 
@@ -37,16 +38,17 @@ enum class FileAccessMode : uint8_t
     ReadWrite = Read | Write
 };
 
-enum class OpenFlagEnum : uint32_t
+// enum class OpenFlagEnum : uint32_t
+enum class OpenFlagEnum : uint8_t
 {
-    Append = O_APPEND,
-    Truncate = O_TRUNC,
-    CloseOnExec = O_CLOEXEC,
-    DataSync = O_DSYNC,
-    Direct = O_DIRECT,
-    NoAtime = O_NOATIME,
-    NonBlock = O_NONBLOCK,
-    FileSync = O_SYNC
+    Append = 0x01,
+    Truncate = Append << 1,
+    CloseOnExec = Truncate << 1,
+    DataSync = CloseOnExec << 1,
+    Direct = DataSync << 1,
+    NoAtime = Direct << 1,
+    NonBlock = NoAtime << 1,
+    FileSync = NonBlock << 1
 };
 
 class OpenFlags {
@@ -90,12 +92,20 @@ class OpenFlags {
         return mode;
     }
 
-    constexpr FlagType flags() const noexcept
-    {
-        return m_mask;
+    constexpr uint32_t flags() const noexcept {
+        uint32_t openFlags = 0;
+        openFlags |= static_cast<uint32_t>(hasFlag(OpenFlagEnum::Append)) * O_APPEND;
+        openFlags |= static_cast<uint32_t>(hasFlag(OpenFlagEnum::Truncate)) * O_TRUNC;
+        openFlags |= static_cast<uint32_t>(hasFlag(OpenFlagEnum::CloseOnExec)) * O_CLOEXEC;
+        openFlags |= static_cast<uint32_t>(hasFlag(OpenFlagEnum::DataSync)) * O_DSYNC;
+        openFlags |= static_cast<uint32_t>(hasFlag(OpenFlagEnum::Direct)) * O_DIRECT;
+        openFlags |= static_cast<uint32_t>(hasFlag(OpenFlagEnum::NoAtime)) * O_NOATIME;
+        openFlags |= static_cast<uint32_t>(hasFlag(OpenFlagEnum::NonBlock)) * O_NONBLOCK;
+        openFlags |= static_cast<uint32_t>(hasFlag(OpenFlagEnum::FileSync)) * O_SYNC;
+        return openFlags;
     }
 
-    constexpr bool hasFlag(OpenFlagEnum flag) noexcept
+    constexpr bool hasFlag(OpenFlagEnum flag) const noexcept
     {
         return (m_mask & static_cast<FlagType>(flag)) != 0;
     }
@@ -110,16 +120,6 @@ constexpr OpenFlags operator|(OpenFlagEnum lhs, OpenFlagEnum rhs)
     return mode | rhs;
 }
 
-struct [[nodiscard]] ReadResult {
-    size_t bytesRead{0};
-    FudStatus status{FudStatus::Success};
-};
-
-struct [[nodiscard]] WriteResult {
-    size_t bytesWritten{0};
-    FudStatus status{FudStatus::Success};
-};
-
 class RegularFile;
 using FileResult = Result<RegularFile, FudStatus>;
 
@@ -129,8 +129,7 @@ class RegularFile {
         StringView filename,
         FileAccessMode mode,
         OpenFlags flags,
-        Option<int> dirFdoption,
-        Allocator* allocator = &globalFudAllocator);
+        Option<int> dirFdoption);
 
     static FileResult create(
         StringView filename,
@@ -138,8 +137,7 @@ class RegularFile {
         OpenFlags flags,
         Permissions permissions,
         bool exclusive,
-        Option<int> dirFdOption,
-        Allocator* allocator = &globalFudAllocator);
+        Option<int> dirFdOption);
 
     FudStatus close();
 
@@ -163,8 +161,20 @@ class RegularFile {
 
   private:
     int m_fd{-1};
-    FileAccessMode m_modeFlags{};
     OpenFlags m_openFlags{};
+    FileAccessMode m_modeFlags{};
+};
+
+class BufferedRegularFile {
+public:
+    DrainResult write(const void* source, size_t sourceSize, size_t length, size_t offset);
+    // DrainResult read(void* sink, );
+private:
+    Vector<std::byte> m_readBuffer{Vector<std::byte>::NullVector()};
+    Vector<std::byte> m_writeBuffer{Vector<std::byte>::NullVector()};
+    RegularFile m_file;
+    bool m_readBuffered{false};
+    bool m_writeBuffered{false};
 };
 
 } // namespace fud