Ruprecht Altenburger
2nd try
ThreadFlag.cpp@3:29602f4ade5c, 2021-02-25 (annotated)
- Committer:
- altb2
- Date:
- Thu Feb 25 20:28:16 2021 +0000
- Revision:
- 3:29602f4ade5c
First commit of Mirror actuato, still under construction, pins should be ok, next: check path planner;
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| altb2 | 3:29602f4ade5c | 1 | /* |
| altb2 | 3:29602f4ade5c | 2 | * ThreadFlag.cpp |
| altb2 | 3:29602f4ade5c | 3 | * Copyright (c) 2019, ZHAW |
| altb2 | 3:29602f4ade5c | 4 | * All rights reserved. |
| altb2 | 3:29602f4ade5c | 5 | * |
| altb2 | 3:29602f4ade5c | 6 | * Created on: 29.11.2019 |
| altb2 | 3:29602f4ade5c | 7 | * Author: Marcel Honegger |
| altb2 | 3:29602f4ade5c | 8 | */ |
| altb2 | 3:29602f4ade5c | 9 | |
| altb2 | 3:29602f4ade5c | 10 | #include "ThreadFlag.h" |
| altb2 | 3:29602f4ade5c | 11 | |
| altb2 | 3:29602f4ade5c | 12 | using namespace std; |
| altb2 | 3:29602f4ade5c | 13 | |
| altb2 | 3:29602f4ade5c | 14 | uint32_t ThreadFlag::threadFlags = 0; |
| altb2 | 3:29602f4ade5c | 15 | |
| altb2 | 3:29602f4ade5c | 16 | /** |
| altb2 | 3:29602f4ade5c | 17 | * Creates a signal object and assignes a unique flag. |
| altb2 | 3:29602f4ade5c | 18 | */ |
| altb2 | 3:29602f4ade5c | 19 | ThreadFlag::ThreadFlag() { |
| altb2 | 3:29602f4ade5c | 20 | |
| altb2 | 3:29602f4ade5c | 21 | mutex.lock(); |
| altb2 | 3:29602f4ade5c | 22 | |
| altb2 | 3:29602f4ade5c | 23 | uint32_t n = 0; |
| altb2 | 3:29602f4ade5c | 24 | while ((((1 << n) & threadFlags) > 0) && (n < 30)) n++; |
| altb2 | 3:29602f4ade5c | 25 | threadFlag = (1 << n); |
| altb2 | 3:29602f4ade5c | 26 | |
| altb2 | 3:29602f4ade5c | 27 | mutex.unlock(); |
| altb2 | 3:29602f4ade5c | 28 | } |
| altb2 | 3:29602f4ade5c | 29 | |
| altb2 | 3:29602f4ade5c | 30 | /** |
| altb2 | 3:29602f4ade5c | 31 | * Deletes the signal object and releases the assigned flag. |
| altb2 | 3:29602f4ade5c | 32 | */ |
| altb2 | 3:29602f4ade5c | 33 | ThreadFlag::~ThreadFlag() { |
| altb2 | 3:29602f4ade5c | 34 | |
| altb2 | 3:29602f4ade5c | 35 | mutex.lock(); |
| altb2 | 3:29602f4ade5c | 36 | |
| altb2 | 3:29602f4ade5c | 37 | threadFlags &= ~threadFlag; |
| altb2 | 3:29602f4ade5c | 38 | |
| altb2 | 3:29602f4ade5c | 39 | mutex.unlock(); |
| altb2 | 3:29602f4ade5c | 40 | } |
| altb2 | 3:29602f4ade5c | 41 | |
| altb2 | 3:29602f4ade5c | 42 | /** |
| altb2 | 3:29602f4ade5c | 43 | * Gets the assigned thread flag. |
| altb2 | 3:29602f4ade5c | 44 | */ |
| altb2 | 3:29602f4ade5c | 45 | uint32_t ThreadFlag::read() { |
| altb2 | 3:29602f4ade5c | 46 | |
| altb2 | 3:29602f4ade5c | 47 | return threadFlag; |
| altb2 | 3:29602f4ade5c | 48 | } |
| altb2 | 3:29602f4ade5c | 49 | |
| altb2 | 3:29602f4ade5c | 50 | /** |
| altb2 | 3:29602f4ade5c | 51 | * The empty operator is a shorthand notation of the <code>read()</code> method. |
| altb2 | 3:29602f4ade5c | 52 | */ |
| altb2 | 3:29602f4ade5c | 53 | ThreadFlag::operator uint32_t() { |
| altb2 | 3:29602f4ade5c | 54 | |
| altb2 | 3:29602f4ade5c | 55 | return read(); |
| altb2 | 3:29602f4ade5c | 56 | } |
| altb2 | 3:29602f4ade5c | 57 |