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Limit max data size for async callback

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This commit is contained in:
John Zhao
2018-07-11 15:04:14 +08:00
parent 0153261447
commit 3dc21c0378
3 changed files with 11 additions and 7 deletions
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5
src/internal/async_callback.h
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@@ -31,7 +31,8 @@ class AsyncCallback {
public:
using callback_t = std::function<void(Data data)>;
AsyncCallback(std::string name, callback_t callback, bool concat = false);
AsyncCallback(
std::string name, callback_t callback, std::size_t max_data_size = 0);
~AsyncCallback();
void PushData(Data data);
@@ -50,8 +51,8 @@ class AsyncCallback {
std::thread thread_;
std::uint32_t count_;
bool concat_;
std::vector<Data> datas_;
std::size_t max_data_size_;
};
MYNTEYE_END_NAMESPACE

8
src/internal/async_callback_impl.h
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@@ -24,11 +24,11 @@ MYNTEYE_BEGIN_NAMESPACE
template <class Data>
AsyncCallback<Data>::AsyncCallback(
std::string name, callback_t callback, bool concat)
std::string name, callback_t callback, std::size_t max_data_size)
: name_(std::move(name)),
callback_(std::move(callback)),
count_(0),
concat_(concat) {
max_data_size_(max_data_size) {
VLOG(2) << __func__;
running_ = true;
thread_ = std::thread(&AsyncCallback<Data>::Run, this);
@@ -51,8 +51,10 @@ AsyncCallback<Data>::~AsyncCallback() {
template <class Data>
void AsyncCallback<Data>::PushData(Data data) {
std::lock_guard<std::mutex> _(mtx_);
if (!concat_) {
if (max_data_size_ <= 0) {
datas_.clear();
} else if (max_data_size_ == datas_.size()) { // >= 1
datas_.erase(datas_.begin());
}
datas_.push_back(data);
++count_;