Switch to single-threaded epoll-based operation

stream_buffer.cc

@@ -4,23 +4,11 @@ StreamBuffer::StreamBuffer(int sock, size_t size)
 		: Buffer(size),
 		  sock_(sock) {}
 
-bool StreamBuffer::BufferAtLeast(size_t len) {
-	CHECK_LE(start_ + len, size_);
-
-	while (ReadMaxLen() < len) {
-		auto read_len = read(sock_, WritePtr(), WriteMaxLen());
-		PCHECK(read_len >= 0);
-		if (read_len == 0) {
-			return false;
-		}
-		Wrote(read_len);
+bool StreamBuffer::Refill() {
+	auto read_len = read(sock_, WritePtr(), WriteMaxLen());
+	if (read_len == 0) {
+		return false;
 	}
+	Wrote(read_len);
 	return true;
 }
-
-const char *StreamBuffer::Read(size_t len) {
-	if (!BufferAtLeast(len)) {
-		return nullptr;
-	}
-	return Buffer::Read(len);
-}