From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from 7.mo6.mail-out.ovh.net ([46.105.59.196]) by bombadil.infradead.org with esmtps (Exim 4.80.1 #2 (Red Hat Linux)) id 1Y3U6N-0004Pj-4u for barebox@lists.infradead.org; Tue, 23 Dec 2014 18:22:36 +0000 Received: from mail179.ha.ovh.net (gw6.ovh.net [213.251.189.206]) by mo6.mail-out.ovh.net (Postfix) with SMTP id 4F03DFF93D8 for ; Tue, 23 Dec 2014 19:22:11 +0100 (CET) From: Jean-Christophe PLAGNIOL-VILLARD Date: Tue, 23 Dec 2014 19:21:56 +0100 Message-Id: <1419358918-25569-7-git-send-email-plagnioj@jcrosoft.com> In-Reply-To: <1419358918-25569-1-git-send-email-plagnioj@jcrosoft.com> References: <20141223170709.GA15818@ns203013.ovh.net> <1419358918-25569-1-git-send-email-plagnioj@jcrosoft.com> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 7/9] poller: allow to restrict the poller frequency To: barebox@lists.infradead.org so we do not slow down barebox on too much polling specialy on USB drivers Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD --- common/poller.c | 11 ++++++++++- include/poller.h | 3 +++ 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/common/poller.c b/common/poller.c index 496636d..58b105d 100644 --- a/common/poller.c +++ b/common/poller.c @@ -24,6 +24,9 @@ int poller_register(struct poller_struct *poller) list_add_tail(&poller->list, &poller_list); poller->registered = 1; + if (poller->frequency) + poller->poll_next = get_time_ns(); + return 0; } @@ -96,8 +99,14 @@ void poller_call(void) poller_active = 1; - list_for_each_entry_safe(poller, tmp, &poller_list, list) + list_for_each_entry_safe(poller, tmp, &poller_list, list) { + + if (poller->frequency && get_time_ns() < poller->poll_next) + continue; poller->func(poller); + if (poller->frequency) + poller->poll_next += poller->frequency; + } poller_active = 0; } diff --git a/include/poller.h b/include/poller.h index cda5b57..3568a80 100644 --- a/include/poller.h +++ b/include/poller.h @@ -14,6 +14,9 @@ struct poller_struct { void (*func)(struct poller_struct *poller); int registered; struct list_head list; + + uint64_t frequency; + uint64_t poll_next; }; int poller_register(struct poller_struct *poller); -- 2.1.3 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox