proper cmake

src/repo/srcs/objects/FileBuffer.cpp

@@ -0,0 +1,51 @@
+//
+// Created by Stepan Usatiuk on 23.04.2023.
+//
+
+#include "../../includes/objects/FileBuffer.h"
+
+#include "../../includes/Serialize.h"
+
+FileBuffer::FileBuffer(const Repository *repo, Object::idType fileId) : repo(repo), file(Serialize::deserialize<File>(repo->getObject(fileId))), chunksQueue() {
+    for (auto const &id: file.chunks) chunksQueue.emplace(id);
+};
+
+int FileBuffer::sync() {
+    return 0;
+}
+
+std::streamsize FileBuffer::xsgetn(char *s, std::streamsize countr) {
+    if (underflow() == std::char_traits<char>::eof()) return 0;
+    for (int i = 0; i < countr; i++) {
+        auto c = uflow();
+        if (c != traits_type::eof()) {
+            s[i] = traits_type::to_char_type(c);
+        } else
+            return i;
+    }
+    return countr;
+}
+
+int FileBuffer::uflow() {
+    auto out = underflow();
+    if (out != traits_type::eof())
+        curGetBufPos++;
+    return out;
+}
+
+int FileBuffer::underflow() {
+    if (getBuf.empty() || curGetBufPos == getBuf.size()) {
+        if (chunksQueue.empty()) return traits_type::eof();
+        else {
+            auto chunk = Serialize::deserialize<Chunk>(repo->getObject(chunksQueue.front()));
+            getBuf = chunk.data;
+            chunksQueue.pop();
+            curGetBufPos = 0;
+        }
+    }
+
+    if (!getBuf.empty())
+        return traits_type::to_int_type(getBuf[curGetBufPos]);
+    else
+        return traits_type::eof();
+}