intermediate changes

ref:cde9a383711a11544ce7e107a78147fb96cc4029

3 files changed, 53 insertions, 0 deletions

diff --git a/library/cpp/string_utils/ztstrbuf/ya.make b/library/cpp/string_utils/ztstrbuf/ya.make
new file mode 100644
index 0000000000..28b3f32f58
--- /dev/null
+++ b/library/cpp/string_utils/ztstrbuf/ya.make
@@ -0,0 +1,9 @@
+LIBRARY()
+
+OWNER(myltsev)
+
+SRCS(
+    ztstrbuf.cpp
+)
+
+END()
diff --git a/library/cpp/string_utils/ztstrbuf/ztstrbuf.cpp b/library/cpp/string_utils/ztstrbuf/ztstrbuf.cpp
new file mode 100644
index 0000000000..4a7269ff4a
--- /dev/null
+++ b/library/cpp/string_utils/ztstrbuf/ztstrbuf.cpp
@@ -0,0 +1,8 @@
+#include "ztstrbuf.h"
+
+#include <util/stream/output.h>
+
+template <>
+void Out<TZtStringBuf>(IOutputStream& os, const TZtStringBuf& sb) {
+    os << static_cast<const TStringBuf&>(sb);
+}
diff --git a/library/cpp/string_utils/ztstrbuf/ztstrbuf.h b/library/cpp/string_utils/ztstrbuf/ztstrbuf.h
new file mode 100644
index 0000000000..5fab768d8c
--- /dev/null
+++ b/library/cpp/string_utils/ztstrbuf/ztstrbuf.h
@@ -0,0 +1,36 @@
+#pragma once
+
+#include <util/generic/strbuf.h>
+#include <util/generic/string.h>
+
+/*
+ * Zero-terminated string view.
+ *
+ * Has a c_str() for use with system/cstdlib calls (like TString)
+ * but can be constructed from a string literal or command-line arg
+ * without memory allocation (like TStringBuf).
+ *
+ * Use it to reference filenames, thread names, string formats etc.
+ */
+
+class TZtStringBuf: public TStringBuf {
+public:
+    TZtStringBuf(const char* s)
+        : TStringBuf(s)
+    {
+    }
+
+    TZtStringBuf(const TString& s)
+        : TStringBuf(s)
+    {
+    }
+
+    TZtStringBuf()
+        : TZtStringBuf(TString{})
+    {
+    }
+
+    const char* c_str() const {
+        return data();
+    }
+};