#include <executor.hpp>
Inheritance diagram for nros::PreShutdownCallbackHandle:
Collaboration diagram for nros::PreShutdownCallbackHandle:
Public Member Functions | |
| ShutdownCallbackHandle () | |
| ShutdownCallbackHandle (nros_cpp_shutdown_callback_handle_t value) | |
 Public Member Functions inherited from nros::ShutdownCallbackHandle | |
| ShutdownCallbackHandle () | |
| ShutdownCallbackHandle (nros_cpp_shutdown_callback_handle_t value) | |
| bool | valid () const |
| True when this handle came from a successful registration. | |
| nros_cpp_shutdown_callback_handle_t | value () const |
| The raw FFI value, for passing to the C entry points directly. | |
Detailed Description
Handle to a PRE-shutdown callback — rclcpp's rclcpp::PreShutdownCallbackHandle.
A distinct type from [OnShutdownCallbackHandle], as in rclcpp, so the compiler refuses remove_on_shutdown_callback(a_pre_handle). The runtime value carries its phase too, so the same mistake made through the C API fails instead of removing the wrong callback — but a compile error is a better place to learn it.
Member Function Documentation
◆ ShutdownCallbackHandle() [1/2]
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inline |
An empty handle. valid() is false; passing it to a remove does nothing and reports false.
◆ ShutdownCallbackHandle() [2/2]
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inlineexplicit |
Wrap a raw handle from the C FFI. Rarely needed directly — the add_*_shutdown_callback methods hand back a typed handle.
The documentation for this class was generated from the following file:
- include/nros/executor.hpp
