rmw  master
C API providing a middleware abstraction layer which is used to implement the rest of ROS.
get_topic_endpoint_info.h
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1 // Copyright 2019 Amazon.com, Inc. or its affiliates. All Rights Reserved.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 #ifndef RMW__GET_TOPIC_ENDPOINT_INFO_H_
16 #define RMW__GET_TOPIC_ENDPOINT_INFO_H_
17 
18 #ifdef __cplusplus
19 extern "C"
20 {
21 #endif
22 
24 #include "rmw/visibility_control.h"
25 
27 
69  const rmw_node_t * node,
70  rcutils_allocator_t * allocator,
71  const char * topic_name,
72  bool no_mangle,
73  rmw_topic_endpoint_info_array_t * publishers_info);
74 
76 
116 rmw_ret_t
118  const rmw_node_t * node,
119  rcutils_allocator_t * allocator,
120  const char * topic_name,
121  bool no_mangle,
122  rmw_topic_endpoint_info_array_t * subscriptions_info);
123 
124 #ifdef __cplusplus
125 }
126 #endif
127 
128 #endif // RMW__GET_TOPIC_ENDPOINT_INFO_H_
rmw_node_t
Structure which encapsulates an rmw node.
Definition: types.h:42
RMW_PUBLIC
#define RMW_PUBLIC
Definition: visibility_control.h:48
rmw_get_publishers_info_by_topic
rmw_ret_t rmw_get_publishers_info_by_topic(const rmw_node_t *node, rcutils_allocator_t *allocator, const char *topic_name, bool no_mangle, rmw_topic_endpoint_info_array_t *publishers_info)
Retrieve the information for all publishers to a given topic.
RMW_WARN_UNUSED
#define RMW_WARN_UNUSED
Indicate that a variable is not used, and prevent compiler from issuing warnings.
Definition: macros.h:24
rmw_get_subscriptions_info_by_topic
rmw_ret_t rmw_get_subscriptions_info_by_topic(const rmw_node_t *node, rcutils_allocator_t *allocator, const char *topic_name, bool no_mangle, rmw_topic_endpoint_info_array_t *subscriptions_info)
Retrieve the information for all subscriptions to a given topic.
rmw_ret_t
int32_t rmw_ret_t
Return code for rmw functions.
Definition: ret_types.h:26
topic_endpoint_info_array.h
visibility_control.h
rcutils_allocator_t
rmw_topic_endpoint_info_array_t
Array of rmw_topic_endpoint_info_t.
Definition: topic_endpoint_info_array.h:28