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* Implementing the rosout logging feature. * fixup for PR * Fixup for PR. * Fixing broken unit tests. * Minor fixup for PR. * Fixing bug in rosout teardown. * Fixing unit test that broke because the rosout node wasn't getting counted. * Fixing warnings on Windows.
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// Copyright 2018-2019 Open Source Robotics Foundation, Inc. | ||
// | ||
// Licensed under the Apache License, Version 2.0 (the "License"); | ||
// you may not use this file except in compliance with the License. | ||
// You may obtain a copy of the License at | ||
// | ||
// http://www.apache.org/licenses/LICENSE-2.0 | ||
// | ||
// Unless required by applicable law or agreed to in writing, software | ||
// distributed under the License is distributed on an "AS IS" BASIS, | ||
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
// See the License for the specific language governing permissions and | ||
// limitations under the License. | ||
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#ifndef RCL__LOGGING_ROSOUT_H_ | ||
#define RCL__LOGGING_ROSOUT_H_ | ||
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#include "rcl/allocator.h" | ||
#include "rcl/error_handling.h" | ||
#include "rcl/node.h" | ||
#include "rcl/types.h" | ||
#include "rcl/visibility_control.h" | ||
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#ifdef __cplusplus | ||
extern "C" | ||
{ | ||
#endif | ||
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/// Initializes the rcl_logging_rosout features | ||
/** | ||
* Calling this will initialize the rcl_logging_rosout features. This function must be called | ||
* before any other rcl_logging_rosout_* functions can be called. | ||
* | ||
* <hr> | ||
* Attribute | Adherence | ||
* ------------------ | ------------- | ||
* Allocates Memory | Yes | ||
* Thread-Safe | No | ||
* Uses Atomics | No | ||
* Lock-Free | Yes | ||
* | ||
* \param[in] allocator The allocator used for metadata related to the rcl_logging_rosout features | ||
* \return `RCL_RET_OK` if the rcl_logging_rosout features are successfully initialized, or | ||
* \return `RCL_RET_INVALID_ARGUMENT` if any arguments are invalid, or | ||
* \return `RCL_RET_BAD_ALLOC` if allocating memory failed, or | ||
* \return `RCL_RET_ERROR` if an unspecified error occurs. | ||
*/ | ||
RCL_LOCAL | ||
RCL_WARN_UNUSED | ||
rcl_ret_t | ||
rcl_logging_rosout_init( | ||
const rcl_allocator_t * allocator); | ||
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/// Uninitializes the rcl_logging_rosout features | ||
/** | ||
* Calling this will set the rcl_logging_rosout features into the an unitialized state that is | ||
* functionally the same as before rcl_logging_rosout_init was called. | ||
* | ||
* <hr> | ||
* Attribute | Adherence | ||
* ------------------ | ------------- | ||
* Allocates Memory | Yes | ||
* Thread-Safe | No | ||
* Uses Atomics | No | ||
* Lock-Free | Yes | ||
* | ||
* \return `RCL_RET_OK` if the rcl_logging_rosout feature was successfully unitialized, or | ||
* \return `RCL_RET_ERROR` if an unspecified error occurs. | ||
*/ | ||
RCL_LOCAL | ||
RCL_WARN_UNUSED | ||
rcl_ret_t | ||
rcl_logging_rosout_fini(); | ||
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/// Creates a rosout publisher for a node and registers it to be used by the logging system | ||
/** | ||
* Calling this for an rcl_node_t will create a new publisher on that node that will be | ||
* used by the logging system to publish all log messages from that Node's logger. | ||
* | ||
* If a publisher already exists for this node then a new publisher will NOT be created. | ||
* | ||
* It is expected that after creating a rosout publisher with this function | ||
* rcl_logging_destroy_rosout_publisher_for_node() will be called for the node to cleanup | ||
* the publisher while the Node is still valid. | ||
* | ||
* | ||
* <hr> | ||
* Attribute | Adherence | ||
* ------------------ | ------------- | ||
* Allocates Memory | Yes | ||
* Thread-Safe | No | ||
* Uses Atomics | No | ||
* Lock-Free | Yes | ||
* | ||
* \param[in] node a valid rcl_node_t that the publisher will be created on | ||
* \return `RCL_RET_OK` if the publisher was created successfully, or | ||
* \return `RCL_RET_ALREADY_INIT` if the publisher has already exists, or | ||
* \return `RCL_RET_NODE_INVALID` if any arguments are invalid, or | ||
* \return `RCL_RET_BAD_ALLOC` if allocating memory failed, or | ||
* \return `RCL_RET_ERROR` if an unspecified error occurs. | ||
*/ | ||
RCL_LOCAL | ||
RCL_WARN_UNUSED | ||
rcl_ret_t | ||
rcl_logging_rosout_init_publisher_for_node( | ||
rcl_node_t * node); | ||
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/// Deregisters a rosout publisher for a node and cleans up allocated resources | ||
/** | ||
* Calling this for an rcl_node_t will destroy the rosout publisher on that node and remove it from | ||
* the logging system so that no more Log messages are published to this function. | ||
* | ||
* | ||
* <hr> | ||
* Attribute | Adherence | ||
* ------------------ | ------------- | ||
* Allocates Memory | Yes | ||
* Thread-Safe | No | ||
* Uses Atomics | No | ||
* Lock-Free | Yes | ||
* | ||
* \param[in] node a valid rcl_node_t that the publisher will be created on | ||
* \return `RCL_RET_OK` if the publisher was created successfully, or | ||
* \return `RCL_RET_NODE_INVALID` if any arguments are invalid, or | ||
* \return `RCL_RET_BAD_ALLOC` if allocating memory failed, or | ||
* \return `RCL_RET_ERROR` if an unspecified error occurs. | ||
*/ | ||
RCL_LOCAL | ||
RCL_WARN_UNUSED | ||
rcl_ret_t | ||
rcl_logging_rosout_fini_publisher_for_node( | ||
rcl_node_t * node); | ||
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/// The output handler outputs log messages to rosout topics. | ||
/** | ||
* When called with a logger name and log message this function will attempt to | ||
* find a rosout publisher correlated with the logger name and publish a Log | ||
* message out via that publisher. If there is no publisher directly correlated | ||
* with the logger then nothing will be done. | ||
* | ||
* This function is meant to be registered with the logging functions for rcutils | ||
* | ||
* <hr> | ||
* Attribute | Adherence | ||
* ------------------ | ------------- | ||
* Allocates Memory | Yes | ||
* Thread-Safe | No | ||
* Uses Atomics | No | ||
* Lock-Free | Yes | ||
* | ||
* \param[in] location The pointer to the location struct or NULL | ||
* \param[in] severity The severity level | ||
* \param[in] name The name of the logger, must be null terminated c string | ||
* \param[in] timestamp The timestamp for when the log message was made | ||
* \param[in] log_str The string to be logged | ||
*/ | ||
RCL_PUBLIC | ||
void rcl_logging_rosout_output_handler( | ||
const rcutils_log_location_t * location, | ||
int severity, | ||
const char * name, | ||
rcutils_time_point_value_t timestamp, | ||
const char * format, | ||
va_list * args); | ||
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#ifdef __cplusplus | ||
} | ||
#endif | ||
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#endif // RCL__LOGGING_ROSOUT_H_ |
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