Merged, Maxim. On 06/09/16 02:41, Bill Fischofer wrote:
On Wed, Jun 8, 2016 at 2:27 PM, Maxim Uvarov <[email protected] <mailto:[email protected]>> wrote:Example for simple timer usage. https://bugs.linaro.org/show_bug.cgi?id=2090 Signed-off-by: Maxim Uvarov <[email protected] <mailto:[email protected]>>Reviewed-and-tested-by: Bill Fischofer <[email protected] <mailto:[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] <mailto:[email protected]> https://lists.linaro.org/mailman/listinfo/lng-odp
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