42   ssize_t n;  in ReadFdToString()  local
43   while ((n = TEMP_FAILURE_RETRY(read(fd, &buf[0], sizeof(buf)))) > 0) {  in ReadFdToString()
44     content->append(buf, n);  in ReadFdToString()
46   return (n == 0) ? true : false;  in ReadFdToString()
65     ssize_t n = TEMP_FAILURE_RETRY(write(fd, p, left));  in WriteStringToFd()  local
66     if (n == -1) {  in WriteStringToFd()
69     p += n;  in WriteStringToFd()
70     left -= n;  in WriteStringToFd()
128     ssize_t n = TEMP_FAILURE_RETRY(read(fd, p, remaining));  in ReadFully()  local
129     if (n <= 0) return false;  in ReadFully()
130     p += n;  in ReadFully()
131     remaining -= n;  in ReadFully()
140     ssize_t n = TEMP_FAILURE_RETRY(write(fd, p, remaining));  in WriteFully()  local
141     if (n == -1) return false;  in WriteFully()
142     p += n;  in WriteFully()
143     remaining -= n;  in WriteFully()