Get node names and namespaces #545
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wjwwood
reviewed
Aug 29, 2018
| if (ret != RCL_RET_OK) { | ||
| auto error_msg = std::string("failed to get node names: ") + rcl_get_error_string_safe(); | ||
| rcl_reset_error(); | ||
| if (rcutils_string_array_fini(&node_names_c) != RCUTILS_RET_OK) { | ||
| error_msg += std::string(", failed also to cleanup node names, leaking memory: ") + | ||
| rcl_get_error_string_safe(); | ||
| } | ||
| if (rcutils_string_array_fini(&node_namespaces_c) != RCUTILS_RET_OK) { | ||
| error_msg += std::string(", failed also to cleanup node namespaces, leaking memory: ") + | ||
| rcl_get_error_string_safe(); |
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This wasn't being done in the existing code either, but you should reset the error with rcl_reset_error().
| ret = rcutils_string_array_fini(&node_namespaces_c); | ||
| if (ret != RCUTILS_RET_OK) { | ||
| // *INDENT-OFF* | ||
| // TODO(karsten1987): Append rcutils_error_message once it's in master |
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I don't really understand this TODO (copied here or from the original) @Karsten1987 can you explain?
| @@ -163,10 +183,19 @@ NodeGraph::get_node_names() const | |||
| std::string("could not destroy node names: ")); | |||
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This exception should only be thrown after trying to fini the node_namespaces_c struct as well.
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| return node_names; | ||
| } | ||
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nitpick: Seems like unnecessary vertical whitepsace (https://google.github.io/styleguide/cppguide.html#Vertical_Whitespace)
wjwwood
approved these changes
Sep 1, 2018
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Add a new method to return a vector of pair to get both node names and namespaces.
Connects to ros2/rmw#142