EventFlags.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2006-2017 ARM Limited
00003  *
00004  * Permission is hereby granted, free of charge, to any person obtaining a copy
00005  * of this software and associated documentation files (the "Software"), to deal
00006  * in the Software without restriction, including without limitation the rights
00007  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
00008  * copies of the Software, and to permit persons to whom the Software is
00009  * furnished to do so, subject to the following conditions:
00010  *
00011  * The above copyright notice and this permission notice shall be included in
00012  * all copies or substantial portions of the Software.
00013  *
00014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
00015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
00016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
00017  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
00018  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
00019  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
00020  * SOFTWARE.
00021  */
00022 #include "rtos/EventFlags.h"
00023 #include <string.h>
00024 #include "mbed_error.h"
00025 #include "mbed_assert.h"
00026 
00027 namespace rtos {
00028 
00029 EventFlags::EventFlags()
00030 {
00031     constructor();
00032 }
00033 
00034 EventFlags::EventFlags(const char *name)
00035 {
00036     constructor(name);
00037 }
00038 
00039 void EventFlags::constructor(const char *name)
00040 {
00041     memset(&_obj_mem, 0, sizeof(_obj_mem));
00042     osEventFlagsAttr_t attr;
00043     attr.name = name ? name : "application_unnamed_event_flags";
00044     attr.cb_mem = &_obj_mem;
00045     attr.cb_size = sizeof(_obj_mem);
00046     _id = osEventFlagsNew(&attr);
00047     MBED_ASSERT(_id);
00048 }
00049 
00050 uint32_t EventFlags::set(uint32_t flags)
00051 {
00052     return osEventFlagsSet(_id, flags);
00053 }
00054 
00055 uint32_t EventFlags::clear(uint32_t flags)
00056 {
00057     return osEventFlagsClear(_id, flags);
00058 }
00059 
00060 uint32_t EventFlags::get() const
00061 {
00062     return osEventFlagsGet(_id);
00063 }
00064 
00065 uint32_t EventFlags::wait_all(uint32_t flags, uint32_t timeout, bool clear)
00066 {
00067     return wait(flags, osFlagsWaitAll, timeout, clear);
00068 }
00069 
00070 uint32_t EventFlags::wait_any(uint32_t flags, uint32_t timeout, bool clear)
00071 {
00072     return wait(flags, osFlagsWaitAny, timeout, clear);
00073 }
00074 
00075 EventFlags::~EventFlags()
00076 {
00077     osEventFlagsDelete(_id);
00078 }
00079 
00080 uint32_t EventFlags::wait(uint32_t flags, uint32_t opt, uint32_t timeout, bool clear)
00081 {
00082     if (clear == false) {
00083         opt |= osFlagsNoClear;
00084     }
00085 
00086     return osEventFlagsWait(_id, flags, opt, timeout);
00087 }
00088 
00089 }