How to display file copy progress in 10.8

Question

FSCopyObjectAsync is Deprecated in OS X v10.8, Now how to display progress indictor for file copy operation.

Answer 1

Coping files with progressIndicator in C

#define BUFSIZE (64*1024)

void *thread_proc(void *arg);
      {
          //outPath & inPatn an NSString paths

          char buffer[BUFSIZE];
          const char * outputFile = [outPath UTF8String];
          const char * inputFile = [inPath UTF8String];
          int in = open(inputFile, O_RDONLY);
          int out = open(outputFile, O_WRONLY | O_CREAT | O_TRUNC);

          vvolatile off_t progress;
          progress = 0;             
          ssize_t bytes_read;
          double fileSize = 0;
          NSNumber * theSize;

          if ([inPath getResourceValue:&theSize forKey:NSURLFileSizeKey error:nil])
                  fileSize = [theSize doubleValue];

          [progressIndicator setMaxValue:fileSize];      
          while((bytes_read = read(in, buffer, BUFSIZE)) > 0)
          {
              write(out, buffer, BUFSIZE);
              progress += bytes_read;

              [progressIndicator setDoubleValue:progress];

          }
          // copy is done, or an error occurred
          close(in);
          close(out);
      }