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Fix more segfaults on NetPlay quit

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Basically everything here was race conditions in Qt callbacks, so I changed the client/server instances to std::shared_ptr and added null checks. It checks that the object exists in the callback, and the shared_ptr ensures it doesn't get destroyed until we're done with it.

MD5 check would also cause a segfault if you quit without cancelling it first, which was pretty silly.
This commit is contained in:
Techjar
2018-07-12 20:37:12 -04:00
parent a21d536f99
commit cfeffdcf42
7 changed files with 48 additions and 29 deletions
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17
Source/Core/DolphinQt/NetPlay/MD5Dialog.cpp
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@ -21,7 +21,11 @@
static QString GetPlayerNameFromPID(int pid)
{
QString player_name = QObject::tr("Invalid Player ID");
for (const auto* player : Settings::Instance().GetNetPlayClient()->GetPlayers())
auto client = Settings::Instance().GetNetPlayClient();
if (!client)
return player_name;
for (const auto* player : client->GetPlayers())
{
if (player->pid == pid)
{
@ -82,7 +86,11 @@ void MD5Dialog::show(const QString& title)
m_results.clear();
m_check_label->setText(QString::fromStdString(""));
for (const auto* player : Settings::Instance().GetNetPlayClient()->GetPlayers())
auto client = Settings::Instance().GetNetPlayClient();
if (!client)
return;
for (const auto* player : client->GetPlayers())
{
m_progress_bars[player->pid] = new QProgressBar;
m_status_labels[player->pid] = new QLabel;
@ -118,7 +126,8 @@ void MD5Dialog::SetResult(int pid, const std::string& result)
m_results.push_back(result);
if (m_results.size() >= Settings::Instance().GetNetPlayClient()->GetPlayers().size())
auto client = Settings::Instance().GetNetPlayClient();
if (client && m_results.size() >= client->GetPlayers().size())
{
if (std::adjacent_find(m_results.begin(), m_results.end(), std::not_equal_to<>()) ==
m_results.end())
@ -134,7 +143,7 @@ void MD5Dialog::SetResult(int pid, const std::string& result)
void MD5Dialog::reject()
{
auto* server = Settings::Instance().GetNetPlayServer();
auto server = Settings::Instance().GetNetPlayServer();
if (server)
server->AbortMD5();