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Add a test for missing data device fsyncs

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This commit is contained in:
Vitaliy Filippov
2026-05-18 01:17:56 +03:00
parent a5d9a6996a
commit 4b926e2223
3 changed files with 69 additions and 11 deletions
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src/test/ringloop_mock.cpp
+7 -6
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@@ -166,8 +166,9 @@ void ring_loop_mock_t::mark_completed(ring_data_t *data)
wakeup();
}
disk_mock_t::disk_mock_t(size_t size, bool buffered)
disk_mock_t::disk_mock_t(const std::string & name, size_t size, bool buffered)
{
this->name = name;
this->size = size;
this->data = (uint8_t*)malloc_or_die(size);
this->buffered = buffered;
@@ -242,7 +243,7 @@ void disk_mock_t::discard_buffers(bool all, uint32_t seed)
if (all)
{
if (trace)
printf("disk: discard all buffers (%zu)\n", buffers.size());
printf("%s: discard all buffers (%zu)\n", name.c_str(), buffers.size());
for (auto & b: buffers)
free(b.second.iov_base);
buffers.clear();
@@ -250,7 +251,7 @@ void disk_mock_t::discard_buffers(bool all, uint32_t seed)
else
{
if (trace)
printf("disk: discard random buffers seed=%u\n", seed);
printf("%s: discard random buffers seed=%u\n", name.c_str(), seed);
std::mt19937 rnd(seed);
for (auto it = buffers.begin(); it != buffers.end(); )
{
@@ -279,7 +280,7 @@ ssize_t disk_mock_t::copy_from_sqe(io_uring_sqe *sqe, uint8_t *to, uint64_t base
}
size_t cur = (off + v[i].iov_len > size ? size-off : v[i].iov_len);
if (trace)
printf("disk: write %zu+%zu from %jx\n", off, cur, (uint64_t)v[i].iov_base);
printf("%s: write %zu+%zu from %jx\n", name.c_str(), off, cur, (uint64_t)v[i].iov_base);
memcpy(to + off - base_offset, v[i].iov_base, cur);
off += v[i].iov_len;
}
@@ -332,7 +333,7 @@ bool disk_mock_t::submit(io_uring_sqe *sqe)
{
size_t cur = (off + v[i].iov_len > size ? size-off : v[i].iov_len);
if (trace)
printf("disk: read %zu+%zu to %jx\n", off, cur, (uint64_t)v[i].iov_base);
printf("%s: read %zu+%zu to %jx\n", name.c_str(), off, cur, (uint64_t)v[i].iov_base);
if (buffers.size())
read_item((uint8_t*)v[i].iov_base, off, cur);
else
@@ -374,7 +375,7 @@ bool disk_mock_t::submit(io_uring_sqe *sqe)
else if (sqe->opcode == IORING_OP_FSYNC)
{
if (trace)
printf("disk: fsync\n");
printf("%s: fsync\n", name.c_str());
if (buffers.size())
{
for (auto & b: buffers)