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/*
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* Copyright © 2015 Samsung Electronics Co., Ltd
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef ZUC_COLLECTOR_H
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#define ZUC_COLLECTOR_H
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struct zuc_event_listener;
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struct zuc_test;
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/**
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* Creates a new instance of an event collector that will attach events
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* to the current test directly or via connection from child to parent.
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*
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* @param pipe_fd pointer to the file descriptor to use for communication if
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* needed. If the value is -1 the events will be attached directly to the
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* current test. Otherwise events will be passed back via IPC over this
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* pipe with the expectation that the payload will be handled in the parent
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* process via zuc_process_message().
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* @return a new collector intance.
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* @see zuc_process_message()
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*/
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struct zuc_event_listener *
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zuc_collector_create(int *pipe_fd);
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/**
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* Reads events from the given pipe and processes them.
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*
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* @param test the currently active test to attache events for.
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* @param pipe_fd the file descriptor of the pipe to read from.
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* @return a positive value if a message was received, 0 if the end has
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* been reached and -1 if an error has occurred.
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*/
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int
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zuc_process_message(struct zuc_test *test, int pipe_fd);
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#endif /* ZUC_COLLECTOR_H */
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