From 51694e1f0b2730915e0a57ec6d8de503cf06ef9a Mon Sep 17 00:00:00 2001
From: Igor Tolmachev <me@igorek.dev>
Date: Thu, 27 Jun 2024 16:15:00 +0900
Subject: Create file driver and implement file reader

---
 src/file.rs | 38 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 38 insertions(+)
 create mode 100644 src/file.rs

(limited to 'src/file.rs')

diff --git a/src/file.rs b/src/file.rs
new file mode 100644
index 0000000..f284b98
--- /dev/null
+++ b/src/file.rs
@@ -0,0 +1,38 @@
+use crate::driver::FileDriver;
+use std::io::{Read, Result as IoResult, Seek, Write};
+
+pub struct ArchiveFile<D: FileDriver> {
+    pub(crate) driver: D,
+}
+
+impl<D: FileDriver> ArchiveFile<D> {
+    pub fn new(driver: D) -> Self {
+        Self { driver }
+    }
+
+    pub fn info(&self) -> &D::FileInfo {
+        self.driver.info()
+    }
+}
+
+impl<D: FileDriver + Read> Read for ArchiveFile<D> {
+    fn read(&mut self, buf: &mut [u8]) -> IoResult<usize> {
+        self.driver.read(buf)
+    }
+}
+
+impl<D: FileDriver + Write> Write for ArchiveFile<D> {
+    fn write(&mut self, buf: &[u8]) -> IoResult<usize> {
+        self.driver.write(buf)
+    }
+
+    fn flush(&mut self) -> IoResult<()> {
+        self.driver.flush()
+    }
+}
+
+impl<D: FileDriver + Seek> Seek for ArchiveFile<D> {
+    fn seek(&mut self, pos: std::io::SeekFrom) -> IoResult<u64> {
+        self.driver.seek(pos)
+    }
+}
-- 
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