Fixed JNI Date conversion wit timegm and gmtime

android/jni/Android.mk

@@ -71,6 +71,7 @@ LOCAL_SRC_FILES  := \
 		  ../../src/basic_api.cc \
 		  ../../src/jniutils.cc
 LOCAL_C_INCLUDES := ../../src
+#LOCAL_LDLIBS    := -llog
 include $(BUILD_SHARED_LIBRARY)
 
 include $(CLEAR_VARS)

androidTests/app/src/main/java/com/pep/k9/MainActivity.java

@@ -148,14 +148,17 @@ public class MainActivity extends AppCompatActivity {
 
             msg.setSent(now);
             Date res = msg.getSent();
-            if(!(res.equals(now))) throw new AssertionError();
+            // Conversion rounds to the second, java's Date is in millisecond.
+            if(!(java.lang.Math.abs(res.getTime() - now.getTime()) < 1000)) throw new AssertionError();
         }
 
         {
             Date now = new Date();
 
             msg.setRecv(now);
-            if(!(msg.getRecv().equals(now))) throw new AssertionError();
+            Date res = msg.getRecv();
+            // Conversion rounds to the second, java's Date is in millisecond.
+            if(!(java.lang.Math.abs(res.getTime() - now.getTime()) < 1000)) throw new AssertionError();
         }
 
         {

src/jniutils.cc

@@ -19,6 +19,14 @@ time_t timegm(struct tm* const t) {
 }
 #endif
 
+#if 0 // Enable if log needed
+#include <android/log.h>
+#define  LOG_TAG    "PEPJNIUTILS"
+#define  LOGD(...)  __android_log_print(ANDROID_LOG_DEBUG,LOG_TAG,__VA_ARGS__)
+#else
+#define  LOGD(...)
+#endif
+
 namespace pEp {
     namespace JNIAdapter {
         jclass findClass(JNIEnv *env, const char *classname)
@@ -302,7 +310,15 @@ namespace pEp {
             if (!ts)
                 return (jobject) NULL;
 
-            time_t t = timegm(ts);
+            LOGD("/* Seconds (0-60) */  FROM   :%d", ts->tm_sec);    
+            LOGD("/* Minutes (0-59) */         :%d", ts->tm_min);    
+            LOGD("/* Hours (0-23) */           :%d", ts->tm_hour);   
+            LOGD("/* Day of the month (1-31) */:%d", ts->tm_mday);   
+            LOGD("/* Month (0-11) */           :%d", ts->tm_mon);    
+            LOGD("/* Year - 1900 */            :%d", ts->tm_year);   
+
+            time64_t t = timegm64(ts)*1000;
+            LOGD( "TimeGM returns : %lld", t);
             jclass clazz = findClass(env, "java/util/Date");
             jmethodID constructor = env->GetMethodID(clazz, "<init>", "(J)V");
             assert(constructor);
@@ -314,8 +330,26 @@ namespace pEp {
             if (!date)
                 return NULL;
 
-            time_t t = (time_t) callLongMethod(env, date, "getTime");
-            return new_timestamp(t);
+            jlong t = callLongMethod(env, date, "getTime");
+            LOGD( "Set Time to : %lld", t);
+            timestamp *ts = (timestamp*)calloc(1, sizeof(timestamp));
+            assert(ts);
+            if (ts == NULL)
+                return NULL;
+
+            if (t){
+                time64_t clock = t/1000;
+                gmtime64_r(&clock, ts);
+
+                LOGD("/* Seconds (0-60) */  TO     :%d", ts->tm_sec);    
+                LOGD("/* Minutes (0-59) */         :%d", ts->tm_min);    
+                LOGD("/* Hours (0-23) */           :%d", ts->tm_hour);   
+                LOGD("/* Day of the month (1-31) */:%d", ts->tm_mday);   
+                LOGD("/* Month (0-11) */           :%d", ts->tm_mon);    
+                LOGD("/* Year - 1900 */            :%d", ts->tm_year);   
+            }
+
+            return ts;
         }
 
         static void _setStringField(JNIEnv *env, const char *classname,