blob: 39b2674c316f2393b434b517f8293358bc1ab003 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
|
// Test that drainAllocationsLog returns some timestamps.
load(libdir + 'asserts.js');
var allocTimes = [];
allocTimes.push(timeSinceCreation());
const root = newGlobal({newCompartment: true});
const dbg = new Debugger(root);
dbg.memory.trackingAllocationSites = true;
root.eval("this.alloc1 = {}");
allocTimes.push(timeSinceCreation());
root.eval("this.alloc2 = {}");
allocTimes.push(timeSinceCreation());
root.eval("this.alloc3 = {}");
allocTimes.push(timeSinceCreation());
root.eval("this.alloc4 = {}");
allocTimes.push(timeSinceCreation());
allocs = dbg.memory.drainAllocationsLog();
assertEq(allocs.length >= 4, true);
assertEq(allocs[0].timestamp >= allocTimes[0], true);
var seenAlloc = 0;
var lastIndexSeenAllocIncremented = 0;
for (i = 1; i < allocs.length; ++i) {
assertEq(allocs[i].timestamp >= allocs[i - 1].timestamp, true);
// It isn't possible to exactly correlate the entries in the
// allocs array with the entries in allocTimes, because we can't
// control exactly how many allocations are done during the course
// of a given eval. However, we can assume that there is some
// allocation recorded after each entry in allocTimes. So, we
// track the allocTimes entry we've passed, and then after the
// loop assert that we've seen them all. We also assert that a
// non-zero number of allocations has happened since the last seen
// increment.
while (seenAlloc < allocTimes.length
&& allocs[i].timestamp >= allocTimes[seenAlloc]) {
assertEq(i - lastIndexSeenAllocIncremented > 0, true);
lastIndexSeenAllocIncremented = i;
++seenAlloc;
}
}
// There should be one entry left in allocTimes, because we recorded a
// time after the last possible allocation in the array.
assertEq(seenAlloc, allocTimes.length -1);
|
