Method readFromFD

src/tscore/TextBuffer.cc:204–231

int TextBuffer::readFromFD(int fd) Issues a single read command on the file descriptor passed in. Attempts to read a minimum of 512 bytes from file descriptor passed.

// descriptor passed in.  Attempts to read a minimum of
// 512 bytes from file descriptor passed.
int
TextBuffer::readFromFD(int fd)
{
  int readSize;

  // Check to see if we have got a reasonable amount of space left in our
  //   buffer, if not try to get some more
  if (spaceLeft < 512) {
    if (enlargeBuffer(512) == -1) {
      return -1;
    }
  }

  readSize = read(fd, nextAdd, spaceLeft - 1);

  if (readSize == 0) {
    // Socket is empty so we are done
    return 0;
  } else if (readSize < 0) {
    // Error on read
    return readSize;
  } else {
    nextAdd     = nextAdd + readSize;
    nextAdd[0]  = '\0';
    spaceLeft  -= readSize + 1;
    return readSize;
  }
}

void
TextBuffer::vformat(const char *fmt, va_list ap)