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fix wait for service memory leak bug (#656)

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* when call wait for service in an while loop, the event will be make forever and never release
* fix it by: creating it when we need

Signed-off-by: reed-lau <geoliuwei@gmail.com>
This commit is contained in:
Wei Liu 2019-03-16 00:55:53 +08:00 • committed by Dirk Thomas
parent ec64b40a9d
commit 284d0c1c70
1 changed files with 1 additions and 1 deletions
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2
rclcpp/src/rclcpp/client.cpp
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@ -118,7 +118,6 @@ ClientBase::wait_for_service_nanoseconds(std::chrono::nanoseconds timeout)
if (!node_ptr) {
throw InvalidNodeError();
}
auto event = node_ptr->get_graph_event();
// check to see if the server is ready immediately
if (this->service_is_ready()) {
return true;
@ -127,6 +126,7 @@ ClientBase::wait_for_service_nanoseconds(std::chrono::nanoseconds timeout)
// check was non-blocking, return immediately
return false;
}
auto event = node_ptr->get_graph_event();
// update the time even on the first loop to account for time spent in the first call
// to this->server_is_ready()
std::chrono::nanoseconds time_to_wait =