original files of m241

components/ip_net2-6.9/ipcom/port/src/ipcom_gmtime.c

@@ -0,0 +1,286 @@
+/*
+ ******************************************************************************
+ *                     SOURCE FILE
+ *
+ *     Document no: @(#) $Name: VXWORKS_ITER40_2019102207 $ $RCSfile: ipcom_gmtime.c,v $ $Revision: 1.9 $
+ *     $Source: /home/interpeak/CVSRoot/ipcom/port/src/ipcom_gmtime.c,v $
+ *     $Author: lob $ $Date: 2004-05-10 17:31:55 $
+ *     $State: Exp $ $Locker:  $
+ *
+ *     INTERPEAK_COPYRIGHT_STRING
+ *     Design and implementation by Lennart Bang <lob@interpeak.se>
+ ******************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 1                    DESCRIPTION
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 2                    CONFIGURATION
+ ****************************************************************************
+ */
+
+#include "ipcom_config.h"
+
+
+/*
+ ****************************************************************************
+ * 3                    INCLUDE FILES
+ ****************************************************************************
+ */
+
+#define IPCOM_USE_CLIB_PROTO
+#include "ipcom_clib.h"
+#include "ipcom_time.h"
+
+
+/*
+ ****************************************************************************
+ * 4                    EXTERN PROTOTYPES
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 5                    DEFINES
+ ****************************************************************************
+ */
+
+#define SECS_IN_MIN            60
+#define MINS_IN_HR             60
+#define HRS_IN_DAY             24
+#define DAYS_IN_NON_LEAP_YR    365
+
+#define SECS_IN_HR             (SECS_IN_MIN * MINS_IN_HR)
+#define SECS_IN_DAY            (SECS_IN_HR  * HRS_IN_DAY)
+#define SECS_IN_NON_LEAP_YR    (SECS_IN_DAY * DAYS_IN_NON_LEAP_YR)
+
+#define LEAP_YEAR(yr)          ((((yr) & 0x3) == 0 && ((yr) % 100) != 0) || ((yr) % 400) == 0)
+
+
+/*
+ ****************************************************************************
+ * 6                    TYPES
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 7                    LOCAL PROTOTYPES
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 8                    DATA
+ ****************************************************************************
+ */
+
+/*
+ ****************************************************************************
+ * 9                    LOCAL FUNCTIONS
+ ****************************************************************************
+ */
+
+/*
+ *===========================================================================
+ *                    ipcom_time_timetotm
+ *===========================================================================
+ * Description:
+ * Parameters:
+ * Returns:
+ *
+ */
+#if (defined(IPCOM_GMTIME_R) && IPCOM_GMTIME_R == 1) || (defined(IPCOM_LOCALTIME_R) && IPCOM_LOCALTIME_R == 1)
+IP_STATIC struct Ip_tm *
+ipcom_time_timetotm(const Ip_time_t *timep, struct Ip_tm *tm)
+{
+    Ip_u32   secs;
+    Ip_u32   days;
+    Ip_u32   years;
+    Ip_u32   months;
+    int      inc_day = 0;
+    static const int days_in_month[12] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
+
+    ip_assert(timep != IP_NULL);
+
+    /* Get days and seconds. */
+    secs  = (Ip_u32)*timep;
+    days  = secs / SECS_IN_DAY;
+    secs -= days * SECS_IN_DAY;
+
+    /* Set hours */
+    tm->tm_hour = (int)(secs / SECS_IN_HR);
+    secs -= tm->tm_hour * SECS_IN_HR;
+
+    /* Set minutes */
+    tm->tm_min = (int)secs / SECS_IN_MIN;
+    secs -= tm->tm_min * SECS_IN_MIN;
+
+    /* Set seconds */
+    tm->tm_sec = (int)secs;
+
+    /* Set week day */
+    tm->tm_wday = (int)((days + 4) % 7);	/* + 4 since 1 Jan 1970 was a thursday. */
+    
+    /* Set years */
+    for(years = 1970;; years++)
+    {
+        if(LEAP_YEAR(years))
+        {
+            if(days < 366)
+                break;
+            days -= 366;
+        }
+        else
+        {
+            if(days < 365)
+                break;
+            days -= 365;
+        }
+    }
+    tm->tm_year = (int)(years - 1900);
+
+    /* Set year days */
+    tm->tm_yday = (int)days;
+
+    /* Set months. */
+    if(LEAP_YEAR(years) && days > 58)
+    {
+        if(days == 59)
+            inc_day = 1;
+        days--;  /* Adjust for leap year extra day in february. */
+    }
+    ip_assert(days <= 365);
+
+    for(months = 0;; months++)
+    {
+        if(days < (Ip_u32)days_in_month[months])
+            break;
+        days -= (Ip_u32)days_in_month[months];
+    }
+    tm->tm_mon = (int)months;
+
+    /* Set month day. */
+	tm->tm_mday = (int)(days + 1 + inc_day);
+
+    /*!! Not supported: Set daylight savings time flag. */
+	tm->tm_isdst = 0;
+
+    return tm;
+}
+#endif
+
+
+/*
+ ****************************************************************************
+ * 10                   PUBLIC FUNCTIONS
+ ****************************************************************************
+ */
+
+/*
+ *===========================================================================
+ *                    ipcom_gmtime_r
+ *===========================================================================
+ * Description:
+ * Parameters:
+ * Returns:
+ *
+ */
+#if defined(IPCOM_GMTIME_R) && IPCOM_GMTIME_R == 1
+IP_PUBLIC struct Ip_tm *
+ipcom_gmtime_r(const Ip_time_t *timep, struct Ip_tm *tm)
+{
+    return ipcom_time_timetotm(timep, tm);
+}
+#endif
+
+
+/*
+ *===========================================================================
+ *                    ipcom_gmtime
+ *===========================================================================
+ * Description:
+ * Parameters:
+ * Returns:
+ *
+ */
+#if defined(IPCOM_GMTIME) && IPCOM_GMTIME == 1
+IP_PUBLIC struct Ip_tm *
+ipcom_gmtime(const Ip_time_t *timep)
+{
+    static struct Ip_tm  tm;
+ 
+    return ipcom_gmtime_r(timep, (struct Ip_tm *)&tm);
+}
+#endif
+
+
+/*
+ *===========================================================================
+ *                    ipcom_tzset
+ *===========================================================================
+ * Description:
+ * Parameters:
+ * Returns:
+ *
+ */
+#if defined(IPCOM_TZSET) && IPCOM_TZSET == 1
+IP_PUBLIC void
+ipcom_tzset(void)
+{
+}
+#endif
+
+
+/*
+ *===========================================================================
+ *                    ipcom_localtime_r
+ *===========================================================================
+ * Context:
+ * Description:
+ * Parameters:
+ * Returns:
+ *
+ */
+#if defined(IPCOM_LOCALTIME_R) && IPCOM_LOCALTIME_R == 1
+IP_PUBLIC struct Ip_tm *
+ipcom_localtime_r(const Ip_time_t *timep, struct Ip_tm *tm)
+{
+    /*!!timezone*/
+    return ipcom_time_timetotm(timep, tm);
+}
+#endif
+
+
+/*
+ *===========================================================================
+ *                    ipcom_localtime
+ *===========================================================================
+ * Description:
+ * Parameters:
+ * Returns:
+ *
+ */
+#if defined(IPCOM_LOCALTIME) && IPCOM_LOCALTIME == 1
+IP_PUBLIC struct Ip_tm *
+ipcom_localtime(const Ip_time_t *timep)
+{
+    static struct Ip_tm  tm;
+ 
+    /*!!timezone*/
+    return ipcom_localtime_r(timep, (struct Ip_tm *)&tm);
+}
+#endif
+
+
+/*
+ ****************************************************************************
+ *                      END OF FILE
+ ****************************************************************************
+ */
+