Diff: edge_utils/edge_time.cpp

Revision:

0:f0de320e23ac

Child:

8:5590f55bdf41

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/edge_utils/edge_time.cpp	Fri Dec 01 06:16:31 2017 +0000
@@ -0,0 +1,202 @@
+#include "mbed.h"
+#include "edge_time.h"
+
+static const uint8_t daysInMonth[12] = {
+    31, 28, 31, 30,
+    31, 30, 31, 31,
+    30, 31, 30, 31
+} ;
+
+const char *nameOfDay[7] = {
+    "Sunday", "Monday", "Tuesday", "Wednesday", 
+    "Thursday", "Friday", "Saturday"
+} ;
+
+uint32_t edge_time = 0 ;
+uint32_t utc_offset = 9 * 60 * 60 ;
+tm current_time ;
+Ticker *tokei = 0 ;
+
+void inc_sec(void)
+{
+    edge_time++ ;
+}
+
+void init_timer(void)
+{
+    tokei = new Ticker() ;
+    tokei->attach(inc_sec, 1.0) ;
+}
+
+void set_time(const uint16_t  valueLen, const uint8_t *value) 
+{
+    uint32_t tmp_timestamp = 0 ;
+    for (int i = 0 ; i < valueLen ; i++ ) {
+        tmp_timestamp |= (value[i] & 0xFF) << (i * 8) ;
+    }
+    edge_time = tmp_timestamp ;
+    ts2tm(edge_time, &current_time) ;
+//    ts2time(edge_time, &current_time) ;
+}
+
+void ts2time(uint32_t timestamp, struct tm *tm)
+{
+    uint32_t seconds, minutes, hours, days, month, year ;
+    uint32_t dayOfWeek ;
+    
+//    timestamp += (3600 * 9) ; /* +9 hours for JST */
+    timestamp += utc_offset ;
+    
+    seconds = timestamp % 60 ;
+    minutes = timestamp / 60 ;
+    hours   = minutes / 60  ; /* +9 for JST */
+    minutes -= hours * 60 ;
+    days    = hours / 24 ;
+    hours   -= days * 24 ;
+    
+    tm->tm_sec = seconds ;
+    tm->tm_min = minutes ;
+    tm->tm_hour = hours ; 
+    tm->tm_mday = days + 1 ;
+//    tm->tm_mon  = month ;
+//    tm->tm_year = year ;
+//    tm->tm_wday = dayOfWeek ;
+}
+
+void ts2tm(uint32_t timestamp, struct tm *tm)
+{
+    uint32_t seconds, minutes, hours, days, month, year ;
+    uint32_t dayOfWeek ;
+    
+//    timestamp += (3600 * 9) ; /* +9 hours for JST */
+    timestamp += utc_offset ;
+    
+    seconds = timestamp % 60 ;
+    minutes = timestamp / 60 ;
+    hours   = minutes / 60  ; /* +9 for JST */
+    minutes -= hours * 60 ;
+    days    = hours / 24 ;
+    hours   -= days * 24 ;
+    
+    /* Unix timestamp start 1-Jan-1970 Thursday */
+    year = 1970 ;
+    dayOfWeek = 4 ; /* Thursday */
+    
+    while(1) {
+        bool isLeapYear = 
+            (((year % 4) == 0)
+            &&(((year % 100) != 0)
+            || ((year % 400) == 0))) ;
+        uint16_t daysInYear = isLeapYear ? 366 : 365 ;
+        if (days >= daysInYear) {
+            dayOfWeek += isLeapYear ? 2 : 1 ;
+            days      -= daysInYear ;
+            if (dayOfWeek >= 7) {
+                dayOfWeek -= 7 ;
+            }
+            year++ ;
+        } else {
+            tm->tm_yday = days ;
+            dayOfWeek += days ;
+            dayOfWeek %= 7 ;
+            
+            /* calc the month and the day */
+            for (month = 0 ; month < 12 ; month++) {
+                uint8_t dim = daysInMonth[month] ;
+                
+                /* add a day to feburary if this is a leap year */
+                if ((month == 1) && (isLeapYear)) {
+                    dim++ ;
+                }
+                
+                if (days >= dim) {
+                    days -= dim ;
+                } else {
+                    break ;
+                }
+            }
+            break ;
+        }
+    }
+    tm->tm_sec = seconds ;
+    tm->tm_min = minutes ;
+    tm->tm_hour = hours ; 
+    tm->tm_mday = days + 1 ;
+    tm->tm_mon  = month ;
+    tm->tm_year = year ;
+    tm->tm_wday = dayOfWeek ;
+}
+
+void print_time(struct tm *tm)
+{
+    printf("%02d:%02d:%02d",
+        tm->tm_hour,
+        tm->tm_min,
+        tm->tm_sec ) ;
+}
+
+void print_time(uint32_t thetime) 
+{
+    struct tm timestruct ;
+    ts2time(thetime, &timestruct) ;
+    print_time(&timestruct) ;
+}
+
+void print_time(void)
+{
+    struct tm timestruct ;
+    ts2time(edge_time, &timestruct) ;
+    print_time(&timestruct) ;
+}
+
+void print_date(struct tm *tm) 
+{
+    printf("%d/%d/%d %02d:%02d:%02d (%s)",
+        tm->tm_year,
+        tm->tm_mon + 1,
+        tm->tm_mday,
+        tm->tm_hour,
+        tm->tm_min,
+        tm->tm_sec,
+        nameOfDay[tm->tm_wday]
+        ) ;
+}
+
+void time2str(struct tm *tm, char *timestr) 
+{
+    sprintf(timestr, "%02d:%02d:%02d",
+        tm->tm_hour,
+        tm->tm_min,
+        tm->tm_sec ) ;
+}
+
+void time2str(char *timestr)
+{
+    struct tm timestruct ;
+    ts2time(edge_time, &timestruct) ;
+    time2str(&timestruct, timestr) ;
+}
+
+int32_t time2seq(uint32_t timestamp)
+{
+    struct tm timestruct ;
+    int32_t result  ;
+    ts2time(timestamp, &timestruct) ;
+    result = timestruct.tm_hour * 10000 
+        + timestruct.tm_min * 100
+        + timestruct.tm_sec ;
+    return(result) ;
+}
+
+void time2date(struct tm *tm, char *datestr)
+{
+    sprintf(datestr, "%d/%d/%d %02d:%02d:%02d (%s)",
+        tm->tm_year,
+        tm->tm_mon + 1,
+        tm->tm_mday,
+        tm->tm_hour,
+        tm->tm_min,
+        tm->tm_sec,
+        nameOfDay[tm->tm_wday]
+    ) ;
+}
\ No newline at end of file