364 lines
11 KiB
C
364 lines
11 KiB
C
/*
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* Tests of functionality within extras/timekeeping
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*/
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/*-
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* Copyright (c) 2018, Jeff Kletsky
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* * Neither the name of the copyright holder nor the
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* names of its contributors may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <esp8266.h>
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#include <esp/uart.h>
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#include <FreeRTOS.h>
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#include <task.h>
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/* espressif/esp_system.h uses "bool" but fails to #include */
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#include <stdbool.h>
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#include <espressif/esp_common.h>
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#include <espressif/esp_system.h>
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#include <espressif/esp_wifi.h>
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/* Not defined in espressif/esp_wifi.h */
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extern bool
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sdk_wifi_set_opmode_current(uint8_t opmode);
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/* For sdk_system_restart_in_nmi() */
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#include <esplibs/libmain.h>
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#include <stdio.h>
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#include <stdlib.h>
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#define BLUE_LED 2
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#define LED_ON 0
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#define LED_OFF 1
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#define WAIT_FOR_UART_SECS 5 /* 2 might be OK */
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#define TV2LD(TV) ((long double)TV.tv_sec + (long double)TV.tv_usec * 1.e-6)
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void
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dump_tzglobals(void) {
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/*
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* Defined in newlib-xtensa/newlib/libc/include/time.h
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* implemented in newlib-xtensa/newlib/libc/time/tzvars.c
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*/
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printf("_timezone = %li\n", _timezone);
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printf("_daylight = %i\n", _daylight);
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printf("_tzname[0] = %s\n", _tzname[0]);
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printf("_tzname[1] = %s\n", _tzname[1]);
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}
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void
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dump_tzinfo(void) {
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__tzinfo_type *tzinfo;
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__tzrule_type tzrule;
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tzinfo = __gettzinfo();
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printf("{%i, %i,\n", tzinfo->__tznorth, tzinfo->__tzyear);
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tzrule = tzinfo->__tzrule[0];
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printf("{%c, %i, %i, %i, %i, %li, %li},\n",
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tzrule.ch, tzrule.m, tzrule.n, tzrule.d, tzrule.s, (long)tzrule.change, (long)tzrule.offset);
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tzrule = tzinfo->__tzrule[1];
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printf("{%c, %i, %i, %i, %i, %li, %li}}\n",
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tzrule.ch, tzrule.m, tzrule.n, tzrule.d, tzrule.s, (long)tzrule.change, (long)tzrule.offset);
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}
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void
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dump_both(void) {
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dump_tzglobals();
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dump_tzinfo();
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}
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void
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testTask(void *pvParameters)
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{
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char *env_value;
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struct timeval tv;
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time_t time_secs;
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long num_runs;
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long idx;
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TickType_t base_ticks;
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TickType_t increment_ticks;
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int seconds_per_report;
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int retval;
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uint32_t t0;
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uint32_t t1;
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/* These variables for calculation-speed tests */
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int64_t internal_clock;
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int64_t system_plus_offset;
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int64_t slew_start_time;
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int64_t seemingly_useful = 0;
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#define ADJTIME_SLEW_PERIOD 2000
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#define ADJTIME_SLEW_RATE 500.e-6
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gpio_enable(BLUE_LED, GPIO_OUTPUT);
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gpio_write(BLUE_LED, LED_OFF);
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vTaskDelay(WAIT_FOR_UART_SECS * 1000 / portTICK_PERIOD_MS);
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gpio_write(BLUE_LED, LED_ON);
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printf("\n");
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printf("===> setenv/getenv test; expect TEST ='test value'\n");
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setenv("TEST", "test value", 1);
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env_value = getenv("TEST");
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printf("TEST = '%s'\n", env_value);
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printf("\n");
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printf("===> Dump tzinfo before change:\n");
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dump_both();
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/* "Full" POSIX TZ spec in 2018 is TZ=PST8PDT7,M3.1.0/02:00:00,M11.1.0/02:00:00 */
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printf("\n");
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printf("===> Change TZ to PST8PDT7,M3.1.0,M11.1.0\n");
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setenv("TZ", "PST8PDT7,M3.1.0,M11.1.0", 1);
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dump_both();
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printf("\n");
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printf("===> Call tzset() just in case that's the reason it's not working\n");
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tzset();
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dump_both();
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printf("\n");
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printf("===> unsetenv TZ and confirm\n");
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unsetenv("TZ");
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env_value = getenv("TZ");
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if (env_value) {
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printf("TZ = %s\n", env_value);
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} else {
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printf("TZ not found (expected)\n");
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}
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tzset();
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dump_both();
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printf("##### NOTE: tzset() only changes the globals if TZ is unset\n");
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printf("\n");
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printf("===> Change TZ to PST8PDT7,M3.1.0,M11.1.0\n");
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setenv("TZ", "PST8PDT7,M3.1.0,M11.1.0", 1);
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tzset();
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dump_both();
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printf("\n");
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printf("===> Change TZ to UTC (not terribly useful without zoneinfo\n");
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setenv("TZ", "UTC", 1);
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tzset();
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dump_both();
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printf("##### NOTE: just changes name, not any values; 'UTC0UTC0' better\n");
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printf("\n");
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printf("===> Change TZ to UTC0\n");
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setenv("TZ", "UTC0", 1);
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tzset();
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dump_both();
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printf("\n");
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printf("===> Change TZ to UTC0UTC0\n");
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setenv("TZ", "UTC0UTC0", 1);
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tzset();
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dump_both();
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printf("\n");
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printf("===> Change TZ to UTC0UTC0,0,0\n");
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setenv("TZ", "UTC0UTC0,0,0", 1);
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tzset();
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dump_both();
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printf("\n");
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printf("===> Change TZ to UTC0UTC0,J0/0,J0/0\n");
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setenv("TZ", "UTC0UTC0,J0/0,J0/0", 1);
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tzset();
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dump_both();
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printf("\n");
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printf("===> Change TZ to PST8PDT7,M3.1.0,M11.1.0\n");
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printf("===> PST: 1518754387 Thursday, February 15, 2018 8:13:07 PM GMT-08:00\n");
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setenv("TZ", "PST8PDT7,M3.1.0,M11.1.0", 1);
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tzset();
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time_secs = 1518754387;
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printf("%s", ctime(&time_secs));
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printf("===> PDT: 1526469187 Wednesday, May 16, 2018 4:13:07 AM GMT-07:00\n");
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time_secs = 1526469187;
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printf("%s", ctime(&time_secs));
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printf("\n");
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printf("===> back-to-back printf of sdk_system_get_time() then look at gettimeofday()\n");
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printf("System clock: %0.6Lf seconds\n", ((long double)sdk_system_get_time())*1e-6);
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printf("System clock: %0.6Lf seconds\n", ((long double)sdk_system_get_time())*1e-6);
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gettimeofday(&tv, NULL);
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printf("now: %0.6Lf seconds\n", TV2LD(tv));
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setenv("TZ", "UTC0UTC0,0,0", 1);
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tzset();
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printf("UTC: %s", ctime(&tv.tv_sec)); /* ctime() includes \n */
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setenv("TZ", "PST8PDT7,M3.1.0,M11.1.0", 1);
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tzset();
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printf("PxT: %s", ctime(&tv.tv_sec));
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printf("\n");
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printf("===> settimeofday to 1518768000, Friday, February 16, 2018 12:00:00 AM GMT-08:00\n");
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tv.tv_sec = 1518768000;
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tv.tv_usec = 0;
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settimeofday(&tv, NULL);
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tv.tv_sec = 0;
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tv.tv_usec = 0;
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gettimeofday(&tv, NULL);
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printf("PST: %s", ctime(&tv.tv_sec));
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num_runs = 1e3;
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printf("\n===== Calculation speed tests, %ld runs each, results in us =====\n", num_runs);
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system_plus_offset = 1518768000;
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slew_start_time = system_plus_offset;
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t0 = sdk_system_get_time();
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for (idx = 0; idx < num_runs; idx++) {
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internal_clock =
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(int64_t)(system_plus_offset
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+ (system_plus_offset
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- slew_start_time)
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/ ADJTIME_SLEW_PERIOD);
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seemingly_useful = seemingly_useful + internal_clock;
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system_plus_offset++; /* It's hard to keep this loop from being optimized out! */
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}
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t1 = sdk_system_get_time();
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if (seemingly_useful != 0)
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printf("internal clock with / ADJTIME_SLEW_PERIOD: %ld for %ld runs\n", (long)t1 - (long)t0, idx);
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t0 = sdk_system_get_time();
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for (idx = 0; idx < num_runs; idx++) {
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internal_clock =
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(int64_t)(system_plus_offset
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+ (double)(system_plus_offset
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- slew_start_time)
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* ADJTIME_SLEW_RATE);
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seemingly_useful = seemingly_useful + internal_clock;
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system_plus_offset++;
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}
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t1 = sdk_system_get_time();
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if (seemingly_useful != 0)
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printf("internal clock with (double) * ADJTIME_SLEW_RATE: %ld for %ld runs\n", (long)t1 - (long)t0, idx);
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t0 = sdk_system_get_time();
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for (idx = 0; idx < num_runs; idx++) {
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internal_clock =
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(int64_t)(system_plus_offset
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+ (int64_t)((double)(system_plus_offset
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- slew_start_time)
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* ADJTIME_SLEW_RATE));
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seemingly_useful = seemingly_useful + internal_clock;
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system_plus_offset++;
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}
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t1 = sdk_system_get_time();
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if (seemingly_useful != 0)
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printf("internal clock with (unint64_t) and (double) * ADJTIME_SLEW_RATE: %ld for %ld runs\n", (long)t1 - (long)t0, idx);
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printf("\n===== time-display run =====\n");
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num_runs = 10;
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seconds_per_report = 1;
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increment_ticks = (seconds_per_report * 1000) / portTICK_PERIOD_MS;
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base_ticks = xTaskGetTickCount();
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for (idx = 0; idx <= num_runs; idx++) {
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gettimeofday(&tv, NULL);
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printf("%20.6Lf at %ld ticks\n", TV2LD(tv), (long)(xTaskGetTickCount() - base_ticks));
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vTaskDelay((base_ticks - xTaskGetTickCount()) + (increment_ticks * (idx + 1)));
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}
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printf("\n===== other tests =====\n");
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printf("===> confirm time() function works\n");
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printf("%li from time(NULL)\n", (long)time(NULL));
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printf("%li and %li from time(&time_secs)\n", (long)time(&time_secs), (long)time_secs);
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printf("\n===> Confirm that too-large slew is rejected\n");
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tv.tv_sec = 10000;
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tv.tv_usec = 0;
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retval = adjtime(&tv, NULL);
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if (retval == 0) {
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printf("adjtime with +10000 s FAILED TO FAIL\n");
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} else {
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printf("adjtime with +10000 s properly rejected the change, errno: %d\n", errno);
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}
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tv.tv_sec = -10000;
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tv.tv_usec = 0;
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retval = adjtime(&tv, NULL);
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if (retval == 0) {
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printf("adjtime with -10000 s FAILED TO FAIL\n");
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} else {
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printf("adjtime with -10000 s properly rejected the change, errno: %d\n", errno);
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}
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printf("\n");
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printf("All done; reboot imminent\n");
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gpio_write(BLUE_LED, LED_OFF);
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sdk_system_restart_in_nmi();
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}
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void
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user_init(void)
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{
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uart_set_baud(0, 115200);
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sdk_wifi_set_opmode_current(NULL_MODE); /* Temporarily disable */
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xTaskCreate(testTask, "testTask", 512, NULL, 2, NULL);
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}
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