Add check for available disk space

common/utility.hpp

@@ -3,6 +3,8 @@
 #include <stdio.h>
 #include <limits>
 #include <cmath>
+#include <filesystem>
+#include <sys/statvfs.h>
 #include <common/string.hpp>
 
 class Utility
@@ -16,6 +18,7 @@ class Utility
     static bool fmod(double dividend,double divisor);
     static bool fmod(double dividend, double divisor,double epsilon);
     static String byteCountToString(double bytesTransferred, bool perSecond = true);
+    static size_t getAvailableDiskSpace(const String &path);
   private:
     static String pad(String theString,char padChar,int toLength);
     static String addCommas(String& theString);
@@ -172,4 +175,23 @@ bool Utility::fmod(double dividend, double divisor)
     // Check if the absolute remainder is less than epsilon
     return std::fabs(remainder) < epsilon;
 }
+
+// inline
+// size_t Utility::getAvailableDiskSpace(const String& path)
+// {
+//     struct statvfs stat;
+//     if (::statvfs(path, &stat) != 0)
+//     {
+//       throw new Exception("Error calling statvfs to get available disk space.");
+//     }
+//     // Calculate available space in bytes.  Multiply Number of free inodes * Fragment size
+//     return (size_t)stat.f_bavail * stat.f_frsize;
+// }
+
+inline
+size_t Utility::getAvailableDiskSpace(const String& path)
+{
+    std::filesystem::space_info si = std::filesystem::space(path.str());
+    return si.available;
+}
 #endif