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Dependents: TYBLE16_simple_data_logger TYBLE16_MP3_Air
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 "rtos/ThisThread.h" 00024 #include "mbed_os_timer.h" 00025 #include <string.h> 00026 #include "platform/mbed_error.h" 00027 #include "platform/mbed_assert.h" 00028 00029 namespace rtos { 00030 00031 EventFlags::EventFlags() 00032 { 00033 constructor("application_unnamed_event_flags"); 00034 } 00035 00036 EventFlags::EventFlags(const char *name) 00037 { 00038 constructor(name); 00039 } 00040 00041 void EventFlags::constructor(const char *name) 00042 { 00043 #if MBED_CONF_RTOS_PRESENT 00044 osEventFlagsAttr_t attr = { 0 }; 00045 attr.name = name; 00046 attr.cb_mem = &_obj_mem; 00047 attr.cb_size = sizeof(_obj_mem); 00048 _id = osEventFlagsNew(&attr); 00049 MBED_ASSERT(_id); 00050 #else 00051 _flags = 0; 00052 #endif 00053 } 00054 00055 uint32_t EventFlags::set(uint32_t flags) 00056 { 00057 #if MBED_CONF_RTOS_PRESENT 00058 return osEventFlagsSet(_id, flags); 00059 #else 00060 return core_util_atomic_fetch_or_u32 (&_flags, flags) | flags; 00061 #endif 00062 } 00063 00064 uint32_t EventFlags::clear(uint32_t flags) 00065 { 00066 #if MBED_CONF_RTOS_PRESENT 00067 return osEventFlagsClear(_id, flags); 00068 #else 00069 return core_util_atomic_fetch_and_u32 (&_flags, ~flags); 00070 #endif 00071 } 00072 00073 uint32_t EventFlags::get() const 00074 { 00075 #if MBED_CONF_RTOS_PRESENT 00076 return osEventFlagsGet(_id); 00077 #else 00078 return core_util_atomic_load_u32 (&_flags); 00079 #endif 00080 } 00081 00082 uint32_t EventFlags::wait_all(uint32_t flags, uint32_t millisec, bool clear) 00083 { 00084 return wait(flags, osFlagsWaitAll, millisec, clear); 00085 } 00086 00087 uint32_t EventFlags::wait_any(uint32_t flags, uint32_t millisec, bool clear) 00088 { 00089 return wait(flags, osFlagsWaitAny, millisec, clear); 00090 } 00091 00092 EventFlags::~EventFlags() 00093 { 00094 #if MBED_CONF_RTOS_PRESENT 00095 osEventFlagsDelete(_id); 00096 #endif 00097 } 00098 00099 uint32_t EventFlags::wait(uint32_t flags, uint32_t opt, uint32_t millisec, bool clear) 00100 { 00101 if (clear == false) { 00102 opt |= osFlagsNoClear; 00103 } 00104 00105 #if MBED_CONF_RTOS_PRESENT 00106 return osEventFlagsWait(_id, flags, opt, millisec); 00107 #else 00108 rtos::internal::flags_check_capture check; 00109 check.flags = &_flags; 00110 check.options = opt; 00111 check.flags_wanted = flags; 00112 check.result = 0; 00113 check.match = false; 00114 mbed::internal::do_timed_sleep_relative_or_forever(millisec, rtos::internal::non_rtos_check_flags, &check); 00115 if (check.match) { 00116 return check.result; 00117 } else if (millisec == 0) { 00118 return osErrorResource; 00119 } else { 00120 return osErrorTimeout; 00121 } 00122 #endif 00123 } 00124 00125 }
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