mirror of
https://salsa.debian.org/ha-team/libqb
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2aefe53188
Compared to the outer world, libqb brings rather unintuitive approach to priorities within a native event loop (qbloop.h) -- it doesn't do an exhaustive high-to-low priorities in a batched (clean-the-level) manner, but rather linearly adds a possibility to pick the handling task from the higher priority level as opposed to lower priority ones. This has the advantage of limiting the chances of starvation and deadlock opportunities in the incorrectly constructed SW, on the other hand, it means that libqb is not fulfilling the architected intentions regarding what deserves a priority truthfully, so these priorities are worth just a hint rather than urgency-based separation. And consequently, a discovery of these deadlocks etc. is deferred to the (as Murphy's laws have it) least convenient moment, e.g., when said native event loop is exchanged for other (this time priority trully abiding, like GLib) implementation, while retaining the same basic notion and high-level handling of priorities on libqb side, in IPC server (service handling) context. Hence, demonstration of such a degenerate blocking is not trivial, and we must defer such other event loop implementation. After this hassle, we are rewarded with a practical proof said "high-level handling [...] in IPC server (service handling) context" contains a bug (which we are going to subsequently fix) -- this is contrasted with libqb's native loop implementation that works just fine even prior that fix. Signed-off-by: Jan Pokorný <jpokorny@redhat.com> |
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| .. | ||
| functional | ||
| _failure_injection.c | ||
| _failure_injection.h | ||
| _syslog_override.c | ||
| _syslog_override.h | ||
| .gitignore | ||
| bench-log.c | ||
| blackbox-segfault.sh | ||
| bmc.c | ||
| bmcpt.c | ||
| bms.c | ||
| check_array.c | ||
| check_common.h | ||
| check_ipc.c | ||
| check_log.c | ||
| check_loop.c | ||
| check_map.c | ||
| check_rb.c | ||
| check_util.c | ||
| crash_test_dummy.c | ||
| file_change_bytes.c | ||
| format_compare_speed.c | ||
| loop.c | ||
| make-log-test.sh | ||
| Makefile.am | ||
| print_ver.c | ||
| rbreader.c | ||
| rbwriter.c | ||
| resources.test | ||
| run-coverity | ||
| test.conf.in | ||