hphp/test/zend/good/ext/standard/tests/file/flock_variation.php

   1 <?hh
   2 /*
   3 Prototype: bool flock(resource $handle, int $operation [, int &$wouldblock]);
   4 Description: PHP supports a portable way of locking complete files
   5   in an advisory way
   6 */
   7 <<__EntryPoint>> function main(): void {
   8 echo "*** Testing flock() fun with the various operation and
   9             wouldblock values                                ***\n";
  10 $file = __SystemLib\hphp_test_tmppath('flock.tmp');
  11 $fp = fopen($file, "w");
  12
  13 /* array of operatons */
  14 $operations = varray[
  15   LOCK_SH,
  16   LOCK_EX,
  17   LOCK_SH|LOCK_NB,
  18   LOCK_EX|LOCK_NB,
  19   LOCK_SH|LOCK_EX,
  20   LOCK_UN,
  21   1,
  22   2,
  23   2.234,
  24   TRUE
  25 ];
  26
  27 /* array of wouldblocks */
  28 $wouldblocks = varray[
  29   0,
  30   1,
  31   2,
  32   1.234,
  33   TRUE,
  34   FALSE,
  35   NULL,
  36   varray[1,2,3],
  37   varray[],
  38   "string",
  39   "",
  40   /* binary input */
  41   b"string",
  42   b"",
  43   "\0"
  44 ];
  45
  46 $i = 0;
  47 foreach($operations as $operation) {
  48   echo "--- Outer iteration $i ---\n";
  49   $wouldblock = false;
  50   var_dump(flock($fp, (int)$operation, inout $wouldblock));
  51   $j = 0;
  52   foreach($wouldblocks as $wouldblock) {
  53     echo "-- Inner iteration $j in $i --\n";
  54     var_dump(flock($fp, (int)$operation, inout $wouldblock));
  55     $j++;
  56   }
  57   $i++;
  58 }
  59
  60 fclose($fp);
  61 @unlink($file);
  62
  63 echo "\n*** Done ***\n";
  64 }