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Code Issues Releases Wiki Activity

Char width info goes in the unique data dictionary only once per run (#613)

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Paul Licameli 2020-07-11 14:10:58 -04:00 committed by GitHub
parent 6eb6aab8f5
commit 87d82e76c7
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1 changed files with 13 additions and 5 deletions
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8
src/ProjectSerializer.cpp
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@ -16,6 +16,7 @@
#include "Audacity.h" #include "Audacity.h"
#include "ProjectSerializer.h" #include "ProjectSerializer.h"
#include <mutex>
#include <wx/ustring.h> #include <wx/ustring.h>
/// ///
@ -89,11 +90,16 @@ ProjectSerializer::ProjectSerializer(size_t allocSize)
mDict.SetBufSize(allocSize); mDict.SetBufSize(allocSize);
mBuffer.SetBufSize(allocSize); mBuffer.SetBufSize(allocSize);
std::once_flag flag;
std::call_once(flag, []{
// Just once per run, store header information in the unique static
// dictionary that will be written into each project that is saved.
// Store the size of "wxChar" so we can convert during recovery in // Store the size of "wxChar" so we can convert during recovery in
// case the file is used on a system with a different character size. // case the file is used on a system with a different character size.
char size = sizeof(wxChar); char size = sizeof(wxChar);
mDict.AppendByte(FT_CharSize); mDict.AppendByte(FT_CharSize);
mDict.AppendData(&size, sizeof(size)); mDict.AppendData(&size, sizeof(size));
});
mDictChanged = false; mDictChanged = false;
} }
@ -230,6 +236,8 @@ void ProjectSerializer::WriteName(const wxString & name)
} }
else else
{ {
// mNames is static. This appends each name to static mDict only once
// in each run.
short len = name.length() * sizeof(wxChar); short len = name.length() * sizeof(wxChar);
id = mNames.size(); id = mNames.size();