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Dependents: WNCInterface_M2Xdemo ATT_WNCInterface_Info WNCInterface_HTTP_example Public_IoT_M2X_Cellular_Demo
Fork of M2XStreamClient by
Diff: TimeService.cpp
- Revision:
- 22:4d895e732765
- Parent:
- 21:6878944d2ce2
- Child:
- 23:f32837239193
diff -r 6878944d2ce2 -r 4d895e732765 TimeService.cpp
--- a/TimeService.cpp Sat Jan 02 02:29:43 2016 +0000
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,139 +0,0 @@
-#include "M2XStreamClient.h"
-
-static int fill_iso8601_timestamp(int32_t seconds, int32_t milli,
- char* buffer, int* length);
-
-TimeService::TimeService(M2XStreamClient* client) : _client(client) {
-}
-
-int TimeService::init() {
- _timer.start();
- return reset();
-}
-
-int TimeService::reset() {
- int32_t ts;
- int status = _client->getTimestamp32(&ts);
-
- if (m2x_status_is_success(status)) {
- _server_timestamp = ts;
- _local_last_milli = _timer.read_ms();
- }
-
- return status;
-}
-
-int TimeService::getTimestamp(char* buffer, int* length) {
- uint32_t now = _timer.read_ms();
- if (now < _local_last_milli) {
- // In case of a timestamp overflow(happens once every 50 days on
- // Arduino), we reset the server timestamp recorded.
- int status = reset();
- if (!m2x_status_is_success(status)) { return status; }
- now = _timer.read_ms();
- }
- if (now < _local_last_milli) {
- // We have already reseted the timestamp, so this cannot happen
- // (an HTTP request can take longer than 50 days to finished? You
- // must be kidding here). Something else must be wrong here
- return E_TIMESTAMP_ERROR;
- }
- uint32_t diff = now - _local_last_milli;
- _local_last_milli = now;
- _server_timestamp += (int32_t) (diff / 1000); // Milliseconds to seconds
- return fill_iso8601_timestamp(_server_timestamp, (int32_t) (diff % 1000),
- buffer, length);
-}
-
-#define SIZE_ISO_8601 25
-static inline bool is_leap_year(int16_t y) {
- return ((1970 + y) > 0) &&
- !((1970 + y) % 4) &&
- (((1970 + y) % 100) || !((1970 + y) % 400));
-}
-static inline int32_t days_in_year(int16_t y) {
- return is_leap_year(y) ? 366 : 365;
-}
-static const uint8_t MONTH_DAYS[]={31,28,31,30,31,30,31,31,30,31,30,31};
-
-static int fill_iso8601_timestamp(int32_t timestamp, int32_t milli,
- char* buffer, int* length) {
- int16_t year;
- int8_t month, month_length;
- int32_t day;
- int8_t hour, minute, second;
-
- if (*length < SIZE_ISO_8601) {
- *length = SIZE_ISO_8601;
- return E_BUFFER_TOO_SMALL;
- }
-
- second = timestamp % 60;
- timestamp /= 60; // now it is minutes
-
- minute = timestamp % 60;
- timestamp /= 60; // now it is hours
-
- hour = timestamp % 24;
- timestamp /= 24; // now it is days
-
- year = 0;
- day = 0;
- while ((day += days_in_year(year)) <= timestamp) {
- year++;
- }
- day -= days_in_year(year);
- timestamp -= day; // now it is days in this year, starting at 0
-
- day = 0;
- month_length = 0;
- for (month = 0; month < 12; month++) {
- if (month == 1) {
- // February
- month_length = is_leap_year(year) ? 29 : 28;
- } else {
- month_length = MONTH_DAYS[month];
- }
-
- if (timestamp >= month_length) {
- timestamp -= month_length;
- } else {
- break;
- }
- }
- year = 1970 + year;
- month++; // offset by 1
- day = timestamp + 1;
-
- int i = 0, j = 0;
-
- // NOTE: It seems the snprintf implementation in Arduino has bugs,
- // we have to manually piece the string together here.
-#define INT_TO_STR(v_, width_) \
- for (j = 0; j < (width_); j++) { \
- buffer[i + (width_) - 1 - j] = '0' + ((v_) % 10); \
- (v_) /= 10; \
- } \
- i += (width_)
-
- INT_TO_STR(year, 4);
- buffer[i++] = '-';
- INT_TO_STR(month, 2);
- buffer[i++] = '-';
- INT_TO_STR(day, 2);
- buffer[i++] = 'T';
- INT_TO_STR(hour, 2);
- buffer[i++] = ':';
- INT_TO_STR(minute, 2);
- buffer[i++] = ':';
- INT_TO_STR(second, 2);
- buffer[i++] = '.';
- INT_TO_STR(milli, 3);
- buffer[i++] = 'Z';
- buffer[i++] = '\0';
-
-#undef INT_TO_STR
-
- *length = i;
- return E_OK;
-}
