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Fix race conditions with Communication::waitForMessageSync

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This commit is contained in:
Paul Hollinsky
2020-02-28 20:00:08 -05:00
parent 9fcba2eb13
commit 1cd817a16b
5 changed files with 60 additions and 30 deletions
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include/icsneo/communication/communication.h
+10 -3
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@@ -47,10 +47,17 @@ public:
int addMessageCallback(const MessageCallback& cb);
bool removeMessageCallback(int id);
std::shared_ptr<Message> waitForMessageSync(MessageFilter f = MessageFilter(), std::chrono::milliseconds timeout = std::chrono::milliseconds(50)) {
return waitForMessageSync(std::make_shared<MessageFilter>(f), timeout);
std::shared_ptr<Message> waitForMessageSync(
MessageFilter f = MessageFilter(),
std::chrono::milliseconds timeout = std::chrono::milliseconds(50)) {
return waitForMessageSync([](){ return true; }, f, timeout);
}
std::shared_ptr<Message> waitForMessageSync(std::shared_ptr<MessageFilter> f, std::chrono::milliseconds timeout = std::chrono::milliseconds(50));
// onceWaitingDo is a way to avoid race conditions.
// Return false to bail early, in case your initial command failed.
std::shared_ptr<Message> waitForMessageSync(
std::function<bool(void)> onceWaitingDo,
MessageFilter f = MessageFilter(),
std::chrono::milliseconds timeout = std::chrono::milliseconds(50));
std::shared_ptr<Packetizer> packetizer; // Ownership is shared with the encoder
std::unique_ptr<Encoder> encoder;