Diff: MbedLogger/MbedLogger.cpp

Revision:

35:2f66ea4863d5

Parent:

34:9b66c5188051

Child:

36:966a86937e17

--- a/MbedLogger/MbedLogger.cpp	Wed Dec 20 20:24:15 2017 +0000
+++ b/MbedLogger/MbedLogger.cpp	Wed Dec 20 22:44:02 2017 +0000
@@ -6,6 +6,17 @@
     _file_number = 0;
 }
 
+//one log file only, works faster
+void MbedLogger::openFile() {    
+    //create a file for writing to it (overwrites existing file)
+    _fp = fopen("/local/LOG000.csv", "w");
+    
+    //write the header
+    fprintf(_fp,"state_string,state_ID,timer,depth_cmd,depth(ft),pitch_cmd,pitch(deg), bce_cmd, bce(mm), batt_cmd, batt(mm)\n");
+    
+    //file pointer is a class variable, close the file after you are done writing to it    
+}
+
 //creates a new file each time it's called
 void MbedLogger::createNewFiles() {
     
@@ -102,6 +113,30 @@
     pc().printf("\n\rLog file closed.\n\r");
 }
 
+void MbedLogger::printCurrentLogFile() {
+    //open the file for reading
+    FILE *fp = fopen("/local/Log000.csv", "r");
+    
+    // http://people.cs.uchicago.edu/~dmfranklin/tutorials/fgets.txt
+   
+    //while not end of file, read through line by line???
+    char buffer[500];
+    
+    //read the file line by line (and print each line)
+    pc().printf("\n\rCURRENT MBED LOG FILE /local/Log%03d.csv:\n\r",_file_number);
+    while (!feof(fp)) {
+        // read in the line and make sure it was successful
+        if (fgets(buffer,500,fp) != NULL) {
+            pc().printf("%s\r",buffer);
+            //pc().printf("%d: %s\n\r",lineno++,buffer);
+        }
+    }
+    
+    //close the file
+    fclose(fp);
+    pc().printf("\n\rLog file closed.\n\r");
+}
+
 //ONLY CLOSE THE FILE WITH THIS
 //always close the file when you're done using it
 void MbedLogger::closeFile() {