Lines Matching refs:head

126         $head = 0;
147             while ($tail - $head > $this->chunk_size) {
148                 $finger = $head + (int)(($tail - $head) / 2);
151                 if ($finger == $head || $finger == $tail) {
157                     $head = $finger;
165                     $head = $finger;
169             if ($tail - $head < 1) {
175             $lines = $this->readChunk($fp, $head, $tail);
177         return [$fp, $lines, $head, $tail, $eof];
185      * @param int $head start point chunk
189     protected function readChunk($fp, $head, $tail)  argument
192         $chunk_size = max($tail - $head, 0); // found chunk size
194         fseek($fp, $head);
230      * @param int $head position head of last chunk
238     protected function readAdjacentChunk($fp, $head, $tail, $direction)  argument
240         if (!$fp) return [[], $head, $tail];
244             $head = $tail;
245             $tail = $head + (int)($this->chunk_size * (2 / 3));
249             $tail = $head;
250             $head = max($tail - $this->chunk_size, 0);
252                 $nl = $this->getNewlinepointer($fp, $head);
255                     $head = max($head - $this->chunk_size, 0);
257                     $head = $nl;
264         $lines = $this->readChunk($fp, $head, $tail);
265         return [$lines, $head, $tail];