WIP

c-code/test_code.c

@@ -2,7 +2,7 @@
 #include <string.h>
 #include <stdlib.h>
 #include <byteswap.h>
-
+#include <sys/time.h>
 
 unsigned long encodeDbl(double a){
     unsigned long b;
@@ -41,18 +41,21 @@ BinaryStorage bs_open(char* filename){
    return storage;
 }
 
-int write_record(BinaryStorage *bs, char* name, double value){
+int write_record(BinaryStorage *bs, char* name, double timestamp, double value){
   unsigned char name_len = strlen(name);
-  unsigned int total_length = bswap_32(1+1+name_len+1+8+1);
+  unsigned int total_length = bswap_32(1+1+name_len+1+8+1+8+1);
 
   fwrite(&total_length,4,1,bs->file);
   fputc(1,bs->file);
   fwrite(&name_len,1,1,bs->file);
   fwrite(name, 1,name_len,bs->file);
-  fputc(17,bs->file);
-  
-  unsigned long rawdata = encodeDbl(value);
 
+  fputc(2,bs->file);
+  unsigned long rawdata = encodeDbl(timestamp);
+  fwrite(&rawdata,8,1,bs->file);
+
+  fputc(17,bs->file);
+  rawdata = encodeDbl(value);
   fwrite(&rawdata,8,1,bs->file);
 
   fputc(254,bs->file);
@@ -85,6 +88,12 @@ void bs_close(BinaryStorage *bs){
 int main(){
    printf("Hello World!\n");
    BinaryStorage storage = bs_open("test_c.bin");
-   write_record(&storage,"Hello World!", 314);
+   struct timeval tp;
+   gettimeofday(&tp, NULL);
+   long int ms = tp.tv_sec * 1000 + tp.tv_usec / 1000;
+
+   double timestamp = tp.tv_sec;
+   printf("%d\n",tp.tv_sec);
+   write_record(&storage,"Hello World!", timestamp, 314);
    bs_close(&storage);
 }