122 lines
4.2 KiB
C
122 lines
4.2 KiB
C
/*
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* FreeRTOS POSIX Demo V1.0.0
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* Copyright (C) 2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* 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 all
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* 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, FITNESS
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* FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
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* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
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* IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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* http://www.FreeRTOS.org
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* http://aws.amazon.com/freertos
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*
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* 1 tab == 4 spaces!
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*/
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/*
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******************************************************************************
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* -NOTE- The Win32 port is a simulation (or is that emulation?) only! Do not
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* expect to get real time behaviour from the Win32 port or this demo
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* application. It is provided as a convenient development and demonstration
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* test bed only. This was tested using Windows 10 with Intel Core i7-6700 CPU.
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*
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* Windows will not be running the FreeRTOS simulator threads continuously, so
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* the timing information has no meaningful units. See the documentation page for
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* the Windows simulator for an explanation of the slow timing:
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* http://www.freertos.org/FreeRTOS-Windows-Simulator-Emulator-for-Visual-Studio-and-Eclipse-MingW.html
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* - READ THE WEB DOCUMENTATION FOR THIS PORT FOR MORE INFORMATION ON USING IT -
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*
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* Documentation for this demo can be found on:
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* http://www.freertos.org/FreeRTOS-Plus/FreeRTOS_Plus_POSIX/demo/posix_demo.html
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*/
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/* FreeRTOS includes. */
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#include "FreeRTOS.h"
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#include "task.h"
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/* FreeRTOS+POSIX. */
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#include "FreeRTOS_POSIX/unistd.h"
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/* System headers */
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#include <stdio.h>
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/* demo include */
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#include "posix_demo.h"
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/* Demo task priority */
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#define mainPOSIX_DEMO_PRIORITY (tskIDLE_PRIORITY + 4)
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/*-----------------------------------------------------------*/
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int main_posix(void)
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{
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TickType_t xLastExecutionTime;
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configASSERT((mainPOSIX_DEMO_PRIORITY < configMAX_PRIORITIES));
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const uint32_t ulLongTime_ms = pdMS_TO_TICKS(1000UL);
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printf("FreeRTOS POSIX demo\n");
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/* Start the task to run POSIX demo */
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xTaskCreate(vStartPOSIXDemo, "posix", configMINIMAL_STACK_SIZE, NULL,
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mainPOSIX_DEMO_PRIORITY, NULL);
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vTaskStartScheduler();
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/* Initialise xLastExecutionTime so the first call to vTaskDelayUntil()
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works correctly. */
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xLastExecutionTime = xTaskGetTickCount();
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/* If all is well, the scheduler will now be running, and the following
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* line will never be reached. If the following line does execute, then
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* there was insufficient FreeRTOS heap memory available for the idle and/or
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* timer tasks to be created. See the memory management section on the
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* FreeRTOS web site for more details (this is standard text that is not
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* really applicable to the Win32 simulator port). */
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for (;;) {
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/* Delay until it is time to execute again. */
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vTaskDelayUntil(&xLastExecutionTime, ulLongTime_ms);
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}
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return 0;
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}
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/*-----------------------------------------------------------*/
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void vAssertCalled(const char *pcFile, uint32_t ulLine)
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{
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const uint32_t ulLongSleep = 1000UL;
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volatile uint32_t ulBlockVariable = 0UL;
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volatile char *pcFileName = (volatile char *)pcFile;
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volatile uint32_t ulLineNumber = ulLine;
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(void)pcFileName;
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(void)ulLineNumber;
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printf("vAssertCalled %s, %ld\n", pcFile, (long)ulLine);
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fflush(stdout);
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/* Setting ulBlockVariable to a non-zero value in the debugger will allow
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* this function to be exited. */
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taskDISABLE_INTERRUPTS();
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{
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while (ulBlockVariable == 0UL) {
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sleep(ulLongSleep);
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}
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}
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taskENABLE_INTERRUPTS();
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}
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