129 lines
		
	
	
		
			4.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			129 lines
		
	
	
		
			4.8 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
/**************************************************************************/
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/*!
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    @file     verify.h
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    @author   hathach
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    @section LICENSE
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    Software License Agreement (BSD License)
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    Copyright (c) 2018, hathach (tinyusb.org)
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    All rights reserved.
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    Redistribution and use in source and binary forms, with or without
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    modification, are permitted provided that the following conditions are met:
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    1. Redistributions of source code must retain the above copyright
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    notice, this list of conditions and the following disclaimer.
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    2. Redistributions in binary form must reproduce the above copyright
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    notice, this list of conditions and the following disclaimer in the
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    documentation and/or other materials provided with the distribution.
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    3. Neither the name of the copyright holders nor the
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    names of its contributors may be used to endorse or promote products
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    derived from this software without specific prior written permission.
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    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
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    EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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    WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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    DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER BE LIABLE FOR ANY
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    DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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    (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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    LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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    ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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    (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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    SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**************************************************************************/
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#ifndef VERIFY_H_
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#define VERIFY_H_
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#include "tusb_option.h"
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#include <stdbool.h>
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#include <stdint.h>
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#include "compiler/compiler.h"
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#ifdef __cplusplus
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 extern "C" {
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#endif
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//--------------------------------------------------------------------+
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// Compile-time Verify
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//--------------------------------------------------------------------+
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#if defined __COUNTER__ && __COUNTER__ != __COUNTER__
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  #define _VERIFY_COUNTER __COUNTER__
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#else
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  #define _VERIFY_COUNTER __LINE__
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#endif
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#define VERIFY_STATIC(const_expr) enum { XSTRING_CONCAT_(static_verify_, _VERIFY_COUNTER) = 1/(!!(const_expr)) }
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//--------------------------------------------------------------------+
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// VERIFY Helper
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//--------------------------------------------------------------------+
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#if TUSB_CFG_DEBUG >= 1
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//  #define VERIFY_MESS(format, ...) cprintf("[%08ld] %s: %d: verify failed\n", get_millis(), __func__, __LINE__)
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  #define VERIFY_MESS(_status)   cprintf("%s: %d: verify failed, error = %s\n", __PRETTY_FUNCTION__, __LINE__, dbg_err_str(_status));
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#else
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  #define VERIFY_MESS(_status)
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#endif
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#define VERIFY_DEFINE(_status, _error)  \
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    if ( 0 != _status ) {               \
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      VERIFY_MESS(_status)              \
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      return _error;                    \
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    }
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/**
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 * Helper to implement optional parameter for VERIFY Macro family
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 */
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#define VERIFY_GETARGS(arg1, arg2, arg3, ...)  arg3
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/*------------------------------------------------------------------*/
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/* VERIFY STATUS
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 * - VERIFY_STS_1ARGS : return status of condition if failed
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 * - VERIFY_STS_2ARGS : return provided status code if failed
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 *------------------------------------------------------------------*/
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#define VERIFY_STS_1ARGS(sts)             \
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    do {                              \
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      uint32_t _status = (uint32_t)(sts);   \
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      VERIFY_DEFINE(_status, _status);\
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    } while(0)
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#define VERIFY_STS_2ARGS(sts, _error)     \
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    do {                              \
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      uint32_t _status = (uint32_t)(sts);   \
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      VERIFY_DEFINE(_status, _error);\
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    } while(0)
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/**
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 * Check if status is success (zero), otherwise return
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 * - status value if called with 1 parameter e.g VERIFY_STATUS(status)
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 * - 2 parameter if called with 2 parameters e.g VERIFY_STATUS(status, errorcode)
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 */
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#define VERIFY_STATUS(...)  VERIFY_GETARGS(__VA_ARGS__, VERIFY_STS_2ARGS, VERIFY_STS_1ARGS)(__VA_ARGS__)
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/*------------------------------------------------------------------*/
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/* VERIFY
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 * - VERIFY_1ARGS : return condition if failed (false)
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 * - VERIFY_2ARGS : return provided value if failed
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 *------------------------------------------------------------------*/
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#define VERIFY_1ARGS(cond)            if (!(cond)) return false;
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#define VERIFY_2ARGS(cond, _error)    if (!(cond)) return _error;
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/**
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 * Check if condition is success (true), otherwise return
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 * - false value if called with 1 parameter e.g VERIFY(condition)
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 * - 2 parameter if called with 2 parameters e.g VERIFY(condition, errorcode)
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 */
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#define VERIFY(...)  VERIFY_GETARGS(__VA_ARGS__, VERIFY_2ARGS, VERIFY_1ARGS)(__VA_ARGS__)
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// TODO VERIFY with final statement
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#ifdef __cplusplus
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 }
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#endif
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#endif /* VERIFY_H_ */
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