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Add shared memory synchronization to make access safe

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This commit is contained in:
Bill Somerville
2020-03-15 00:25:35 +00:00
parent 649a79dfc1
commit 46638f6f07
3 changed files with 17 additions and 4 deletions
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widgets/mainwindow.cpp
+4
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@@ -3011,7 +3011,9 @@ void MainWindow::decode() //decode()
&narg[0],&m_TRperiod,&m_msg[0][0],
dec_data.params.mycall,dec_data.params.hiscall,8000,12,12)));
} else {
mem_jt9->lock ();
memcpy(to, from, qMin(mem_jt9->size(), size));
mem_jt9->unlock ();
auto now = QDateTime::currentDateTimeUtc();
double tsec = fmod(double(now.toMSecsSinceEpoch()),86400000.0)/1000.0;
@@ -3072,11 +3074,13 @@ void::MainWindow::fast_decode_done()
void MainWindow::to_jt9(qint32 n, qint32 istart, qint32 idone)
{
float ss0[3];
mem_jt9->lock ();
memcpy(ss0,(char*)mem_jt9->data(),12);
ss0[0]=n;
if(istart>=0) ss0[1]=istart;
if(idone>=0) ss0[2]=idone;
memcpy((char*)mem_jt9->data(),ss0,12);
mem_jt9->unlock ();
}
void MainWindow::decodeDone ()