1QBLOOP.H(3) libqb Programmer's Manual QBLOOP.H(3)
2
6 qbloop.h
7
9 #include <qb/qbloop.h>
10
12 Main loop manages timers, jobs and polling sockets.
13 Only a weaker sense of priorities is implemented, alluding to distinct
15 set of pros and cons compared to the stronger, strict approach to them
16 as widely applied in this problem space (since the latter gives the
17 application more control as the effect of the former can still be
18 achieved with some reductions, whereas it is not straightforward the
19 other way around; cf. static priority task scheduling vs. relative
20 fine-tuning within a single priority domain with nice(2)):
21 implicit mitigation for deadlock-prone priority arrangements
23 less predictable (proportional probability based, we can talk about an
25 advisory effect of the priorities) responses to the arrival of the
26 high-ranked events (i.e. in the process of the picking the next event
27 to handle from the priority queue when at least two different priori‐
28 ties are eligible at the moment)
29 One practical application for this module of libqb is in combination
31 with IPC servers based on qbipcs.h published one (the qb_ipcs_poll_han‐
32 dlers structure maps fittingly to the control functions published
33 here).
34
36 qb_loop_job_del(3), qb_loop_run(3), qb_loop_create(3), qb_loop_stop(3),
37 qb_loop_poll_low_fds_event_set(3), qb_loop_signal_del(3),
38 qb_loop_signal_add(3), qb_loop_job_add(3), qb_loop_poll_del(3),
39 qb_loop_destroy(3), qb_loop_timer_expire_time_remaining(3),
40 qb_loop_poll_mod(3), qb_loop_signal_mod(3), qb_loop_timer_del(3),
41 qb_loop_timer_add(3), qb_loop_timer_is_running(3),
42 qb_loop_timer_expire_time_get(3), qb_loop_poll_add(3)
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45 Copyright (C) 2010-2020 Red Hat, Inc. All rights reserved.
46LIBQB 2020-07-30 QBLOOP.H(3)