scmRTOS_test - Quick and dirty port of scmRTOS demo to mbed 1768…

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Igor Skochinsky / Mbed 2 deprecated scmRTOS_test

Quick and dirty port of scmRTOS demo to mbed 1768. scmRTOS is a small RTOS written using C++. Offers (static) processes, critical sections, mutexes, messages, channels.

Dependencies: mbed

scmRTOS/Common/usrlib.cpp@0:a405220cf420, 2010-09-09 (annotated)

Committer:: igorsk
Date:: Thu Sep 09 21:19:01 2010 +0000
Revision:: 0:a405220cf420

Who changed what in which revision?

User	Revision	Line number	New contents of line
igorsk	0:a405220cf420	1	//******************************************************************************
igorsk	0:a405220cf420	2	//*
igorsk	0:a405220cf420	3	//* FULLNAME: Single-Chip Microcontroller Real-Time Operating System
igorsk	0:a405220cf420	4	//*
igorsk	0:a405220cf420	5	//* NICKNAME: scmRTOS
igorsk	0:a405220cf420	6	//*
igorsk	0:a405220cf420	7	//* PURPOSE: User Suport Library Source
igorsk	0:a405220cf420	8	//*
igorsk	0:a405220cf420	9	//* Version: 3.10
igorsk	0:a405220cf420	10	//*
igorsk	0:a405220cf420	11	//* $Revision: 256 $
igorsk	0:a405220cf420	12	//* $Date:: 2010-01-22 #$
igorsk	0:a405220cf420	13	//*
igorsk	0:a405220cf420	14	//* Copyright (c) 2003-2010, Harry E. Zhurov
igorsk	0:a405220cf420	15	//*
igorsk	0:a405220cf420	16	//* Permission is hereby granted, free of charge, to any person
igorsk	0:a405220cf420	17	//* obtaining a copy of this software and associated documentation
igorsk	0:a405220cf420	18	//* files (the "Software"), to deal in the Software without restriction,
igorsk	0:a405220cf420	19	//* including without limitation the rights to use, copy, modify, merge,
igorsk	0:a405220cf420	20	//* publish, distribute, sublicense, and/or sell copies of the Software,
igorsk	0:a405220cf420	21	//* and to permit persons to whom the Software is furnished to do so,
igorsk	0:a405220cf420	22	//* subject to the following conditions:
igorsk	0:a405220cf420	23	//*
igorsk	0:a405220cf420	24	//* The above copyright notice and this permission notice shall be included
igorsk	0:a405220cf420	25	//* in all copies or substantial portions of the Software.
igorsk	0:a405220cf420	26	//*
igorsk	0:a405220cf420	27	//* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
igorsk	0:a405220cf420	28	//* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
igorsk	0:a405220cf420	29	//* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
igorsk	0:a405220cf420	30	//* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
igorsk	0:a405220cf420	31	//* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
igorsk	0:a405220cf420	32	//* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH
igorsk	0:a405220cf420	33	//* THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
igorsk	0:a405220cf420	34	//*
igorsk	0:a405220cf420	35	//* =================================================================
igorsk	0:a405220cf420	36	//* See http://scmrtos.sourceforge.net for documentation, latest
igorsk	0:a405220cf420	37	//* information, license and contact details.
igorsk	0:a405220cf420	38	//* =================================================================
igorsk	0:a405220cf420	39	//*
igorsk	0:a405220cf420	40	//******************************************************************************
igorsk	0:a405220cf420	41
igorsk	0:a405220cf420	42	#include <usrlib.h>
igorsk	0:a405220cf420	43	#include <commdefs.h>
igorsk	0:a405220cf420	44
igorsk	0:a405220cf420	45	using namespace usr;
igorsk	0:a405220cf420	46
igorsk	0:a405220cf420	47	//------------------------------------------------------------------------------
igorsk	0:a405220cf420	48	//
igorsk	0:a405220cf420	49	/// Circular buffer function-member description
igorsk	0:a405220cf420	50	//
igorsk	0:a405220cf420	51	//
igorsk	0:a405220cf420	52	//
igorsk	0:a405220cf420	53	TCbuf::TCbuf(byte* const Address, const byte Size) :
igorsk	0:a405220cf420	54	buf(Address),
igorsk	0:a405220cf420	55	size(Size),
igorsk	0:a405220cf420	56	count(0),
igorsk	0:a405220cf420	57	first(0),
igorsk	0:a405220cf420	58	last(0)
igorsk	0:a405220cf420	59	{
igorsk	0:a405220cf420	60	}
igorsk	0:a405220cf420	61	//------------------------------------------------------------------------------
igorsk	0:a405220cf420	62	bool TCbuf::write(const byte* data, const byte Count)
igorsk	0:a405220cf420	63	{
igorsk	0:a405220cf420	64	if( Count > (size - count) )
igorsk	0:a405220cf420	65	return false;
igorsk	0:a405220cf420	66
igorsk	0:a405220cf420	67	for(byte i = 0; i < Count; i++)
igorsk	0:a405220cf420	68	push(*(data++));
igorsk	0:a405220cf420	69
igorsk	0:a405220cf420	70	return true;
igorsk	0:a405220cf420	71	}
igorsk	0:a405220cf420	72	//------------------------------------------------------------------------------
igorsk	0:a405220cf420	73	void TCbuf::read(byte* data, const byte Count)
igorsk	0:a405220cf420	74	{
igorsk	0:a405220cf420	75	byte N = Count <= count ? Count : count;
igorsk	0:a405220cf420	76
igorsk	0:a405220cf420	77	for(byte i = 0; i < N; i++)
igorsk	0:a405220cf420	78	data[i] = pop();
igorsk	0:a405220cf420	79	}
igorsk	0:a405220cf420	80	//------------------------------------------------------------------------------
igorsk	0:a405220cf420	81	byte TCbuf::get_byte(const byte index) const
igorsk	0:a405220cf420	82	{
igorsk	0:a405220cf420	83	byte x = first + index;
igorsk	0:a405220cf420	84
igorsk	0:a405220cf420	85	if(x < size)
igorsk	0:a405220cf420	86	return buf[x];
igorsk	0:a405220cf420	87	else
igorsk	0:a405220cf420	88	return buf[x - size];
igorsk	0:a405220cf420	89	}
igorsk	0:a405220cf420	90
igorsk	0:a405220cf420	91	//------------------------------------------------------------------------------
igorsk	0:a405220cf420	92	bool TCbuf::put(const byte item)
igorsk	0:a405220cf420	93	{
igorsk	0:a405220cf420	94	if(count == size)
igorsk	0:a405220cf420	95	return false;
igorsk	0:a405220cf420	96
igorsk	0:a405220cf420	97	push(item);
igorsk	0:a405220cf420	98	return true;
igorsk	0:a405220cf420	99	}
igorsk	0:a405220cf420	100	//------------------------------------------------------------------------------
igorsk	0:a405220cf420	101	byte TCbuf::get()
igorsk	0:a405220cf420	102	{
igorsk	0:a405220cf420	103	if(count)
igorsk	0:a405220cf420	104	return pop();
igorsk	0:a405220cf420	105	else
igorsk	0:a405220cf420	106	return 0;
igorsk	0:a405220cf420	107	}
igorsk	0:a405220cf420	108	//------------------------------------------------------------------------------
igorsk	0:a405220cf420	109	//
igorsk	0:a405220cf420	110	/// \note
igorsk	0:a405220cf420	111	/// For internal purposes.
igorsk	0:a405220cf420	112	/// Use this function with care - it doesn't perform free size check.
igorsk	0:a405220cf420	113	//
igorsk	0:a405220cf420	114	void TCbuf::push(const byte item)
igorsk	0:a405220cf420	115	{
igorsk	0:a405220cf420	116	buf[last] = item;
igorsk	0:a405220cf420	117	last++;
igorsk	0:a405220cf420	118	count++;
igorsk	0:a405220cf420	119
igorsk	0:a405220cf420	120	if(last == size)
igorsk	0:a405220cf420	121	last = 0;
igorsk	0:a405220cf420	122	}
igorsk	0:a405220cf420	123	//------------------------------------------------------------------------------
igorsk	0:a405220cf420	124	//
igorsk	0:a405220cf420	125	/// \note
igorsk	0:a405220cf420	126	/// For internal purposes.
igorsk	0:a405220cf420	127	/// Use this function with care - it doesn't perform free size check.
igorsk	0:a405220cf420	128	//
igorsk	0:a405220cf420	129	byte TCbuf::pop()
igorsk	0:a405220cf420	130	{
igorsk	0:a405220cf420	131	byte item = buf[first];
igorsk	0:a405220cf420	132
igorsk	0:a405220cf420	133	count--;
igorsk	0:a405220cf420	134	first++;
igorsk	0:a405220cf420	135	if(first == size)
igorsk	0:a405220cf420	136	first = 0;
igorsk	0:a405220cf420	137
igorsk	0:a405220cf420	138	return item;
igorsk	0:a405220cf420	139	}
igorsk	0:a405220cf420	140	//------------------------------------------------------------------------------

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	09 Sep 2010
Imports:	69
Forks:	0
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	4

scmRTOS/Common/usrlib.cpp@0:a405220cf420, 2010-09-09 (annotated)

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