tor-browser

The Tor Browser
git clone https://git.dasho.dev/tor-browser.git
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incremental-abort.js (1664B)

      1 // |jit-test| skip-if: !getBuildConfiguration("has-gczeal") || (getBuildConfiguration("osx") && getBuildConfiguration("arm64"))
      2 
      3 // Test aborting an incremental GC in all possible states
      4 
      5 gczeal(0);
      6 gc();
      7 
      8 // Allocate objectCount objects in zoneCount zones and run a incremental
      9 // shrinking GC with slices with a work budget of sliceBudget until we reach
     10 // GC state abortState at which point, abort the GC.
     11 function testAbort(zoneCount, objectCount, sliceBudget, abortState)
     12 {
     13 
     14  var zones = [];
     15  for (var i = 0; i < zoneCount; i++) {
     16    var zone = newGlobal({newCompartment: true});
     17    evaluate("var objects; " +
     18             "function makeObjectGraph(objectCount) { " +
     19             "    objects = []; " +
     20             "    for (var i = 0; i < objectCount; i++) " +
     21             "        objects.push({i: i}); " +
     22             "}",
     23             { global: zone });
     24    zone.makeObjectGraph(objectCount);
     25    zones.push(zone);
     26  }
     27 
     28  gc();
     29 
     30  var didAbort = false;
     31  startgc(sliceBudget, "shrinking");
     32  assertEq(currentgc().isShrinking, true);
     33  while (gcstate() !== "NotActive") {
     34    if (gcstate() == abortState) {
     35      abortgc();
     36      didAbort = true;
     37      break;
     38    }
     39 
     40    gcslice(sliceBudget);
     41  }
     42 
     43  assertEq(gcstate(), "NotActive");
     44  if (abortState)
     45    assertEq(didAbort, true);
     46 
     47  return zones;
     48 }
     49 
     50 gczeal(0);
     51 testAbort(10, 10000, 10000);
     52 testAbort(10, 10000, 10000, "Mark");
     53 testAbort(10, 10000, 1000, "Sweep");
     54 testAbort(10, 10000, 10000, "Compact");
     55 // Note: we do not yield automatically before Finalize or Decommit, as they
     56 // yield internally.  Thus, we may not witness an incremental state in this
     57 // phase and cannot test it explicitly.