premiere-libtorrent/test/test_fence.cpp

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#include "libtorrent/storage.hpp"
#include "libtorrent/disk_io_job.hpp"
#include "test.hpp"
#include <atomic>
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using namespace libtorrent;
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TORRENT_TEST(empty_fence)
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{
libtorrent::disk_job_fence fence;
counters cnt;
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disk_io_job test_job[10];
// issue 5 jobs. None of them should be blocked by a fence
int ret_int = 0;
bool ret = false;
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// add a fence job
ret_int = fence.raise_fence(&test_job[5], &test_job[6], cnt);
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// since we don't have any outstanding jobs
// we need to post this job
TEST_CHECK(ret_int == disk_job_fence::fence_post_fence);
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ret = fence.is_blocked(&test_job[7]);
TEST_CHECK(ret == true);
ret = fence.is_blocked(&test_job[8]);
TEST_CHECK(ret == true);
tailqueue<disk_io_job> jobs;
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// complete the fence job
fence.job_complete(&test_job[5], jobs);
// now it's fine to post the blocked jobs
TEST_CHECK(jobs.size() == 2);
TEST_CHECK(jobs.first() == &test_job[7]);
// the disk_io_fence has an assert in its destructor
// to make sure all outstanding jobs are completed, so we must
// complete them before we're done
fence.job_complete(&test_job[7], jobs);
fence.job_complete(&test_job[8], jobs);
}
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TORRENT_TEST(job_fence)
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{
counters cnt;
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libtorrent::disk_job_fence fence;
disk_io_job test_job[10];
// issue 5 jobs. None of them should be blocked by a fence
int ret_int = 0;
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bool ret = false;
TEST_CHECK(fence.num_outstanding_jobs() == 0);
ret = fence.is_blocked(&test_job[0]);
TEST_CHECK(ret == false);
TEST_CHECK(fence.num_outstanding_jobs() == 1);
ret = fence.is_blocked(&test_job[1]);
TEST_CHECK(ret == false);
ret = fence.is_blocked(&test_job[2]);
TEST_CHECK(ret == false);
ret = fence.is_blocked(&test_job[3]);
TEST_CHECK(ret == false);
ret = fence.is_blocked(&test_job[4]);
TEST_CHECK(ret == false);
TEST_CHECK(fence.num_outstanding_jobs() == 5);
TEST_CHECK(fence.num_blocked() == 0);
// add a fence job
ret_int = fence.raise_fence(&test_job[5], &test_job[6], cnt);
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// since we have outstanding jobs, no need
// to post anything
TEST_CHECK(ret_int == disk_job_fence::fence_post_flush);
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ret = fence.is_blocked(&test_job[7]);
TEST_CHECK(ret == true);
ret = fence.is_blocked(&test_job[8]);
TEST_CHECK(ret == true);
tailqueue<disk_io_job> jobs;
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fence.job_complete(&test_job[3], jobs);
TEST_CHECK(jobs.size() == 0);
fence.job_complete(&test_job[2], jobs);
TEST_CHECK(jobs.size() == 0);
fence.job_complete(&test_job[4], jobs);
TEST_CHECK(jobs.size() == 0);
fence.job_complete(&test_job[1], jobs);
TEST_CHECK(jobs.size() == 0);
fence.job_complete(&test_job[0], jobs);
TEST_EQUAL(jobs.size(), 0);
// the flush job completes
fence.job_complete(&test_job[6], jobs);
// this was the last job. Now we should be
// able to run the fence job
TEST_EQUAL(jobs.size(), 1);
TEST_CHECK(jobs.first() == &test_job[5]);
jobs.pop_front();
// complete the fence job
fence.job_complete(&test_job[5], jobs);
// now it's fine to post the blocked jobs
TEST_EQUAL(jobs.size(), 2);
TEST_CHECK(jobs.first() == &test_job[7]);
// the disk_io_fence has an assert in its destructor
// to make sure all outstanding jobs are completed, so we must
// complete them before we're done
fence.job_complete(&test_job[7], jobs);
fence.job_complete(&test_job[8], jobs);
}
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TORRENT_TEST(double_fence)
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{
counters cnt;
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libtorrent::disk_job_fence fence;
disk_io_job test_job[10];
// issue 5 jobs. None of them should be blocked by a fence
int ret_int = 0;
bool ret = false;
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TEST_CHECK(fence.num_outstanding_jobs() == 0);
ret = fence.is_blocked(&test_job[0]);
TEST_CHECK(ret == false);
TEST_CHECK(fence.num_outstanding_jobs() == 1);
ret = fence.is_blocked(&test_job[1]);
TEST_CHECK(ret == false);
ret = fence.is_blocked(&test_job[2]);
TEST_CHECK(ret == false);
ret = fence.is_blocked(&test_job[3]);
TEST_CHECK(ret == false);
ret = fence.is_blocked(&test_job[4]);
TEST_CHECK(ret == false);
TEST_CHECK(fence.num_outstanding_jobs() == 5);
TEST_CHECK(fence.num_blocked() == 0);
// add two fence jobs
ret_int = fence.raise_fence(&test_job[5], &test_job[6], cnt);
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// since we have outstanding jobs, no need
// to post anything
TEST_CHECK(ret_int == disk_job_fence::fence_post_flush);
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ret_int = fence.raise_fence(&test_job[7], &test_job[8], cnt);
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// since we have outstanding jobs, no need
// to post anything
TEST_CHECK(ret_int == disk_job_fence::fence_post_none);
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std::printf("ret: %d\n", ret_int);
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ret = fence.is_blocked(&test_job[9]);
TEST_CHECK(ret == true);
tailqueue<disk_io_job> jobs;
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fence.job_complete(&test_job[3], jobs);
TEST_CHECK(jobs.size() == 0);
fence.job_complete(&test_job[2], jobs);
TEST_CHECK(jobs.size() == 0);
fence.job_complete(&test_job[4], jobs);
TEST_CHECK(jobs.size() == 0);
fence.job_complete(&test_job[1], jobs);
TEST_CHECK(jobs.size() == 0);
fence.job_complete(&test_job[0], jobs);
TEST_CHECK(jobs.size() == 0);
fence.job_complete(&test_job[6], jobs);
// this was the last job. Now we should be
// able to run the fence job
TEST_CHECK(jobs.size() == 1);
TEST_CHECK(jobs.first() == &test_job[5]);
jobs.pop_front();
// complete the fence job
fence.job_complete(&test_job[5], jobs);
// now it's fine to run the next fence job
// first we get the flush job
TEST_CHECK(jobs.size() == 1);
TEST_CHECK(jobs.first() == &test_job[8]);
jobs.pop_front();
fence.job_complete(&test_job[8], jobs);
// then the fence itself
TEST_CHECK(jobs.size() == 1);
TEST_CHECK(jobs.first() == &test_job[7]);
jobs.pop_front();
fence.job_complete(&test_job[7], jobs);
// and now we can run the remaining blocked job
TEST_CHECK(jobs.size() == 1);
TEST_CHECK(jobs.first() == &test_job[9]);
// the disk_io_fence has an assert in its destructor
// to make sure all outstanding jobs are completed, so we must
// complete them before we're done
fence.job_complete(&test_job[9], jobs);
}