mutex_threadx.h

/******************************************************************************
The MIT License(MIT)
 
Embedded Template Library.
https://github.com/ETLCPP/etl
https://www.etlcpp.com
 
Copyright(c) 2020 Phil Wise phil@phil-wise.com
 
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copies or substantial portions of the Software.
 
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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******************************************************************************/
 
#ifndef ETL_MUTEX_THREADX_INCLUDED
#define ETL_MUTEX_THREADX_INCLUDED
 
#include "../platform.h"
 
#include "tx_api.h"
 
namespace etl
{
  //***************************************************************************
  //***************************************************************************
  class mutex
  {
  public:
 
    mutex()
    {
      tx_mutex_create(&mutex_handle, "etl mutex", TX_INHERIT);
    }
 
    ~mutex()
    {
      tx_mutex_delete(&mutex_handle);
    }
 
    void lock()
    {
      tx_mutex_get(&mutex_handle, TX_WAIT_FOREVER);
    }
 
    bool try_lock()
    {
      return tx_mutex_get(&mutex_handle, TX_NO_WAIT) == TX_SUCCESS;
    }
 
    void unlock()
    {
      tx_mutex_put(&mutex_handle);
    }
 
  private:
 
    // Non-copyable
    mutex(const mutex&) ETL_DELETE;
    mutex& operator=(const mutex&) ETL_DELETE;
 
    // mutex handle
    TX_MUTEX mutex_handle;
  };
} // namespace etl
 
#endif