mirror of https://github.com/ARMmbed/mbed-os.git
126 lines
3.3 KiB
C++
126 lines
3.3 KiB
C++
/* mbed Microcontroller Library
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* Copyright (c) 2006-2017 ARM Limited
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "rtos/EventFlags.h"
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#include "rtos/ThisThread.h"
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#include "mbed_os_timer.h"
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#include <string.h>
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#include "mbed_error.h"
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#include "mbed_assert.h"
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namespace rtos {
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EventFlags::EventFlags()
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{
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constructor("application_unnamed_event_flags");
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}
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EventFlags::EventFlags(const char *name)
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{
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constructor(name);
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}
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void EventFlags::constructor(const char *name)
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{
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#if MBED_CONF_RTOS_PRESENT
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osEventFlagsAttr_t attr = { 0 };
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attr.name = name;
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attr.cb_mem = &_obj_mem;
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attr.cb_size = sizeof(_obj_mem);
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_id = osEventFlagsNew(&attr);
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MBED_ASSERT(_id);
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#else
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_flags = 0;
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#endif
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}
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uint32_t EventFlags::set(uint32_t flags)
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{
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#if MBED_CONF_RTOS_PRESENT
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return osEventFlagsSet(_id, flags);
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#else
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return core_util_atomic_fetch_or_u32(&_flags, flags) | flags;
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#endif
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}
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uint32_t EventFlags::clear(uint32_t flags)
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{
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#if MBED_CONF_RTOS_PRESENT
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return osEventFlagsClear(_id, flags);
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#else
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return core_util_atomic_fetch_and_u32(&_flags, ~flags);
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#endif
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}
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uint32_t EventFlags::get() const
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{
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#if MBED_CONF_RTOS_PRESENT
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return osEventFlagsGet(_id);
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#else
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return core_util_atomic_load_u32(&_flags);
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#endif
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}
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uint32_t EventFlags::wait_all(uint32_t flags, uint32_t millisec, bool clear)
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{
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return wait(flags, osFlagsWaitAll, millisec, clear);
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}
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uint32_t EventFlags::wait_any(uint32_t flags, uint32_t millisec, bool clear)
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{
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return wait(flags, osFlagsWaitAny, millisec, clear);
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}
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EventFlags::~EventFlags()
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{
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#if MBED_CONF_RTOS_PRESENT
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osEventFlagsDelete(_id);
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#endif
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}
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uint32_t EventFlags::wait(uint32_t flags, uint32_t opt, uint32_t millisec, bool clear)
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{
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if (clear == false) {
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opt |= osFlagsNoClear;
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}
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#if MBED_CONF_RTOS_PRESENT
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return osEventFlagsWait(_id, flags, opt, millisec);
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#else
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rtos::internal::flags_check_capture check;
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check.flags = &_flags;
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check.options = opt;
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check.flags_wanted = flags;
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check.result = 0;
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check.match = false;
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mbed::internal::do_timed_sleep_relative_or_forever(millisec, rtos::internal::non_rtos_check_flags, &check);
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if (check.match) {
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return check.result;
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} else if (millisec == 0) {
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return osErrorResource;
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} else {
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return osErrorTimeout;
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}
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#endif
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}
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}
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