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Avoid unecessary copying the parameter

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Using forwarding reference here so that we won't get unnecessary copies
of the parameter passed to `slot`, for example a lambda function.
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Chocobo1 2019-08-26 01:21:36 +08:00
parent aeabd2d625
commit 0891cd4878
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1 changed files with 2 additions and 2 deletions
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src/base/net/downloadmanager.h
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@ -119,7 +119,7 @@ namespace Net
static DownloadManager *instance(); static DownloadManager *instance();
template <typename Context, typename Func> template <typename Context, typename Func>
void download(const DownloadRequest &downloadRequest, Context context, Func slot); void download(const DownloadRequest &downloadRequest, Context context, Func &&slot);
void registerSequentialService(const ServiceID &serviceID); void registerSequentialService(const ServiceID &serviceID);
@ -150,7 +150,7 @@ namespace Net
}; };
template <typename Context, typename Func> template <typename Context, typename Func>
void DownloadManager::download(const DownloadRequest &downloadRequest, Context context, Func slot) void DownloadManager::download(const DownloadRequest &downloadRequest, Context context, Func &&slot)
{ {
const DownloadHandler *handler = download(downloadRequest); const DownloadHandler *handler = download(downloadRequest);
connect(handler, &DownloadHandler::finished, context, slot); connect(handler, &DownloadHandler::finished, context, slot);