Timestamp works now

c-code/test_code.c

@@ -19,6 +19,11 @@ unsigned long encodeDbl(double a){
     return b;
 }
 
+typedef struct timestamp {
+  unsigned int seconds;
+  unsigned int nanos;
+} TSTMP;
+
 typedef struct storage {
   FILE* file;
   unsigned long* contents;
@@ -41,7 +46,7 @@ BinaryStorage bs_open(char* filename){
    return storage;
 }
 
-int write_record(BinaryStorage *bs, char* name, double timestamp, double value){
+int write_record(BinaryStorage *bs, char* name, TSTMP timestamp, double value){
   unsigned char name_len = strlen(name);
   unsigned int total_length = bswap_32(1+1+name_len+1+8+1+8+1);
 
@@ -51,11 +56,13 @@ int write_record(BinaryStorage *bs, char* name, double timestamp, double value){
   fwrite(name, 1,name_len,bs->file);
 
   fputc(2,bs->file);
-  unsigned long rawdata = encodeDbl(timestamp);
-  fwrite(&rawdata,8,1,bs->file);
+  unsigned int sec = bswap_32(timestamp.seconds);
+  unsigned int nano = bswap_32(timestamp.nanos); 
+  fwrite(&sec,4,1,bs->file);
+  fwrite(&nano,4,1,bs->file);
 
   fputc(17,bs->file);
-  rawdata = encodeDbl(value);
+  unsigned long rawdata = encodeDbl(value);
   fwrite(&rawdata,8,1,bs->file);
 
   fputc(254,bs->file);
@@ -72,10 +79,8 @@ void bs_close(BinaryStorage *bs){
    bs->contents[bs->con_idx]=ftell(bs->file);
    bs->con_idx++;
    int i;
-   printf("total = %d\n",bs->con_idx);
    for(i=0;i<bs->con_idx;i++){
       unsigned long swapped = bswap_64(bs->contents[i]);
-      printf("%d\n",bs->contents[i]);
       fwrite(&swapped,8,1,bs->file);
    }
    unsigned int num_of_rec = bswap_32(bs->con_idx);
@@ -86,14 +91,16 @@ void bs_close(BinaryStorage *bs){
 }
 
 int main(){
-   printf("Hello World!\n");
-   BinaryStorage storage = bs_open("test_c.bin");
    struct timeval tp;
-   gettimeofday(&tp, NULL);
-   long int ms = tp.tv_sec * 1000 + tp.tv_usec / 1000;
+   long int ms;
+   BinaryStorage storage = bs_open("test_c.bin");
+   int i=0;
+   for(i=0;i<10;i++){
+      gettimeofday(&tp, NULL);
+      ms = tp.tv_sec * 1000 + tp.tv_usec / 1000;
+      TSTMP timestamp = {.seconds = tp.tv_sec, .nanos=tp.tv_usec*1000};
+      write_record(&storage,"Test_Record", timestamp, 3.1415*i);
+   }
 
-   double timestamp = tp.tv_sec;
-   printf("%d\n",tp.tv_sec);
-   write_record(&storage,"Hello World!", timestamp, 314);
    bs_close(&storage);
 }