On Wed, Jun 8, 2016 at 2:27 PM, Maxim Uvarov <[email protected]> wrote:
> Example for simple timer usage. > https://bugs.linaro.org/show_bug.cgi?id=2090 > > Signed-off-by: Maxim Uvarov <[email protected]> > Reviewed-and-tested-by: Bill Fischofer <[email protected]> > --- > v2: use better name for pool and more return code checks on destroy > (Bills comments). > > example/timer/.gitignore | 1 + > example/timer/Makefile.am | 12 ++- > example/timer/odp_timer_simple.c | 157 > +++++++++++++++++++++++++++++++++++++++ > 3 files changed, 167 insertions(+), 3 deletions(-) > create mode 100644 example/timer/odp_timer_simple.c > > diff --git a/example/timer/.gitignore b/example/timer/.gitignore > index eb59265..f53a0df 100644 > --- a/example/timer/.gitignore > +++ b/example/timer/.gitignore > @@ -1 +1,2 @@ > odp_timer_test > +odp_timer_simple > diff --git a/example/timer/Makefile.am b/example/timer/Makefile.am > index fcb67a9..1c733d3 100644 > --- a/example/timer/Makefile.am > +++ b/example/timer/Makefile.am > @@ -1,10 +1,16 @@ > include $(top_srcdir)/example/Makefile.inc > > -bin_PROGRAMS = odp_timer_test$(EXEEXT) > +bin_PROGRAMS = odp_timer_test$(EXEEXT) \ > + odp_timer_simple$(EXEEXT) > odp_timer_test_LDFLAGS = $(AM_LDFLAGS) -static > odp_timer_test_CFLAGS = $(AM_CFLAGS) -I${top_srcdir}/example > +dist_odp_timer_test_SOURCES = odp_timer_test.c > + > +odp_timer_simple_LDFLAGS = $(AM_LDFLAGS) -static > +odp_timer_simple_CFLAGS = $(AM_CFLAGS) -I${top_srcdir}/example > +dist_odp_timer_simple_SOURCES = odp_timer_simple.c > + > +TESTS = odp_timer_simple > > noinst_HEADERS = \ > $(top_srcdir)/example/example_debug.h > - > -dist_odp_timer_test_SOURCES = odp_timer_test.c > diff --git a/example/timer/odp_timer_simple.c > b/example/timer/odp_timer_simple.c > new file mode 100644 > index 0000000..f33add9 > --- /dev/null > +++ b/example/timer/odp_timer_simple.c > @@ -0,0 +1,157 @@ > +/* Copyright (c) 2016, Linaro Limited > + * All rights reserved. > + * > + * SPDX-License-Identifier: BSD-3-Clause > + */ > +/** > + * @file > + * > + * @example odp_timer_simple.c ODP simple example to schedule timer > + * action for 1 second. > + */ > + > +#include <string.h> > +#include <stdlib.h> > +#include <example_debug.h> > + > +/* ODP main header */ > +#include <odp_api.h> > + > +int main(int argc ODP_UNUSED, char *argv[] ODP_UNUSED) > +{ > + odp_instance_t instance; > + odp_pool_param_t params; > + odp_timer_pool_param_t tparams; > + odp_pool_t timeout_pool; > + odp_timer_pool_t timer_pool; > + odp_queue_param_t qparam; > + odp_queue_t queue; > + odp_event_t ev = ODP_EVENT_INVALID; > + odp_timer_t tim; > + uint64_t sched_tmo; > + int i, rc; > + uint64_t period; > + uint64_t tick; > + odp_timeout_t tmo; > + int ret = 0; > + > + /* > + * Init ODP app > + */ > + if (odp_init_global(&instance, NULL, NULL)) > + goto err_global; > + > + if (odp_init_local(instance, ODP_THREAD_CONTROL)) > + goto err_local; > + > + /* > + * Create pool for timeouts > + */ > + odp_pool_param_init(¶ms); > + params.tmo.num = 10; > + params.type = ODP_POOL_TIMEOUT; > + > + timeout_pool = odp_pool_create("timeout_pool", ¶ms); > + if (timeout_pool == ODP_POOL_INVALID) { > + ret += 1; > + goto err_tp; > + } > + > + /* > + * Create pool of timeouts > + */ > + tparams.res_ns = 10 * ODP_TIME_USEC_IN_NS; > + tparams.min_tmo = 10 * ODP_TIME_USEC_IN_NS; > + tparams.max_tmo = 1 * ODP_TIME_SEC_IN_NS; > + tparams.num_timers = 1; /* One timer per worker */ > + tparams.priv = 0; /* Shared */ > + tparams.clk_src = ODP_CLOCK_CPU; > + timer_pool = odp_timer_pool_create("timer_pool", &tparams); > + if (timer_pool == ODP_TIMER_POOL_INVALID) { > + ret += 1; > + goto err; > + } > + > + /* > + * Create a queue for timer test > + */ > + odp_queue_param_init(&qparam); > + qparam.type = ODP_QUEUE_TYPE_SCHED; > + qparam.sched.prio = ODP_SCHED_PRIO_DEFAULT; > + qparam.sched.sync = ODP_SCHED_SYNC_PARALLEL; > + qparam.sched.group = ODP_SCHED_GROUP_ALL; > + > + queue = odp_queue_create("timer_queue", &qparam); > + if (queue == ODP_QUEUE_INVALID) { > + ret += 1; > + goto err; > + } > + > + tim = odp_timer_alloc(timer_pool, queue, NULL); > + if (tim == ODP_TIMER_INVALID) { > + EXAMPLE_ERR("Failed to allocate timer\n"); > + ret += 1; > + goto err; > + } > + > + tmo = odp_timeout_alloc(timeout_pool); > + if (tmo == ODP_TIMEOUT_INVALID) { > + EXAMPLE_ERR("Failed to allocate timeout\n"); > + return -1; > + } > + > + ev = odp_timeout_to_event(tmo); > + > + /* Calculate period for timer in uint64_t value, in current case > + * we will schedule timer for 1 second */ > + period = odp_timer_ns_to_tick(timer_pool, 1 * ODP_TIME_SEC_IN_NS); > + > + /* Wait time to return from odp_schedule() if there are no > + * events > + */ > + sched_tmo = odp_schedule_wait_time(2 * ODP_TIME_SEC_IN_NS); > + > + for (i = 0; i < 5; i++) { > + odp_time_t time; > + > + /* Program timeout action on current tick + period */ > + tick = odp_timer_current_tick(timer_pool); > + rc = odp_timer_set_abs(tim, tick + period, &ev); > + /* Too early or too late timeout requested */ > + if (odp_unlikely(rc != ODP_TIMER_SUCCESS)) > + EXAMPLE_ABORT("odp_timer_set_abs() failed: %d\n", > + rc); > + > + /* Wait for 2 seconds for timeout action to be generated */ > + ev = odp_schedule(&queue, sched_tmo); > + if (ev == ODP_EVENT_INVALID) > + EXAMPLE_ABORT("Invalid event\n"); > + if (odp_event_type(ev) != ODP_EVENT_TIMEOUT) > + EXAMPLE_ABORT("Unexpected event type (%u) > received\n", > + odp_event_type(ev)); > + > + time = odp_time_global(); > + printf("timer tick %d, time ns %" PRIu64 "\n", > + i, odp_time_to_ns(time)); > + > + /* Do not free current event, just go back to loop and > program > + * timeout to next second. > + */ > + } > + > + /* Destroy created resources */ > + rc += odp_timer_cancel(tim, &ev); > + rc += -(odp_timer_free(tim) == ODP_EVENT_INVALID); > + odp_event_free(ev); > + > + ret += odp_queue_destroy(queue); > +err: > + odp_timer_pool_destroy(timer_pool); > +err_tp: > + ret += odp_pool_destroy(timeout_pool); > + ret += odp_term_local(); > +err_local: > + ret += odp_term_global(instance); > +err_global: > + return ret; > +} > -- > 2.7.1.250.gff4ea60 > > _______________________________________________ > lng-odp mailing list > [email protected] > https://lists.linaro.org/mailman/listinfo/lng-odp > _______________________________________________ lng-odp mailing list [email protected] https://lists.linaro.org/mailman/listinfo/lng-odp
