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* Copyright (c) 2013 Potential Ventures Ltd
* Copyright (c) 2013 SolarFlare Communications Inc
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Potential Ventures Ltd,
* SolarFlare Communications Inc nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL POTENTIAL VENTURES LTD BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
******************************************************************************/
#ifndef COCOTB_UTILS_H_
#define COCOTB_UTILS_H_
#include <exports.h>
#ifdef COCOTBUTILS_EXPORTS
#define COCOTBUTILS_EXPORT COCOTB_EXPORT
#else
#define COCOTBUTILS_EXPORT COCOTB_IMPORT
#endif
#include <gpi_logging.h>
#define xstr(a) str(a)
#define str(a) #a
extern "C" COCOTBUTILS_EXPORT void* utils_dyn_open(const char* lib_name);
extern "C" COCOTBUTILS_EXPORT void* utils_dyn_sym(void* handle,
const char* sym_name);
extern "C" COCOTBUTILS_EXPORT int is_python_context;
// to_python and to_simulator are implemented as macros instead of functions so
// that the logs reference the user's lineno and filename
#define to_python() \
do { \
if (is_python_context) { \
LOG_ERROR("FATAL: We are calling up again"); \
exit(1); \
} \
++is_python_context; \
LOG_TRACE("Returning to Python"); \
} while (0)
#define to_simulator() \
do { \
if (!is_python_context) { \
LOG_ERROR("FATAL: We have returned twice from Python"); \
exit(1); \
} \
--is_python_context; \
LOG_TRACE("Returning to simulator"); \
} while (0)
template <typename F>
class Deferable {
public:
constexpr Deferable(F f) : f_(f){};
~Deferable() { f_(); }
private:
F f_;
};
template <typename F>
constexpr Deferable<F> make_deferable(F f) {
return Deferable<F>(f);
}
#define DEFER1(a, b) a##b
#define DEFER0(a, b) DEFER1(a, b)
#define DEFER(statement) \
auto DEFER0(_defer, __COUNTER__) = make_deferable([&]() { statement; });
#endif /* COCOTB_UTILS_H_ */
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