Add user data storage handler.

server/TracyUserData.cpp

@@ -0,0 +1,63 @@
+#include <assert.h>
+#include <memory>
+#include <stdio.h>
+
+#include "TracyStorage.hpp"
+#include "TracyUserData.hpp"
+
+namespace tracy
+{
+
+constexpr auto FileDescription = "description";
+
+UserData::UserData()
+{
+}
+
+UserData::UserData( const char* program, uint64_t time )
+    : m_program( program )
+    , m_time( time )
+{
+    const auto descpath = GetSavePath( m_program.c_str(), m_time, FileDescription, false );
+    if( descpath )
+    {
+        FILE* f = fopen( descpath, "rb" );
+        if( f )
+        {
+            fseek( f, 0, SEEK_END );
+            const auto sz = ftell( f );
+            fseek( f, 0, SEEK_SET );
+            auto buf = std::make_unique<char[]>( sz );
+            fread( buf.get(), 1, sz, f );
+            fclose( f );
+            m_description.assign( buf.get(), buf.get() + sz );
+        }
+    }
+}
+
+void UserData::Init( const char* program, uint64_t time )
+{
+    assert( !Valid() );
+    m_program = program;
+    m_time = time;
+}
+
+bool UserData::SetDescription( const char* description )
+{
+    assert( Valid() );
+
+    m_description = description;
+    const auto sz = m_description.size();
+
+    const auto path = GetSavePath( m_program.c_str(), m_time, FileDescription, true );
+    if( !path ) return false;
+
+    FILE* f = fopen( path, "wb" );
+    if( !f ) return false;
+
+    fwrite( description, 1, sz, f );
+    fclose( f );
+    return true;
+}
+
+}