1/*
2 * Copyright 2018 Google, Inc.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met: redistributions of source code must retain the above copyright
7 * notice, this list of conditions and the following disclaimer;
8 * redistributions in binary form must reproduce the above copyright

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25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 *
27 * Authors: Gabe Black
28 */
29
30#include <string>
31
32#include "base/logging.hh"
33#include "systemc/ext/channel/messages.hh"
34#include "systemc/ext/channel/sc_semaphore.hh"
35#include "systemc/ext/core/sc_module.hh" // for sc_gen_unique_name
36#include "systemc/ext/utils/sc_report_handler.hh"
37
38namespace sc_core
39{
40
41sc_semaphore::sc_semaphore(int value) :
42 sc_semaphore(sc_gen_unique_name("semaphore"), value)
43{}
44
45sc_semaphore::sc_semaphore(const char *_name, int value) :
46 sc_interface(), sc_semaphore_if(), sc_object(_name), _value(value)
47{
48 if (value < 0) {
49 std::string msg = "semaphore '" + std::string(name()) + "'";
50 SC_REPORT_ERROR(SC_ID_INVALID_SEMAPHORE_VALUE_, msg.c_str());
51 }
52}
53
54int
55sc_semaphore::wait()
56{
57 while (trywait() == -1)
58 ::sc_core::wait(posted);

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