From patchwork Mon Feb 10 01:05:03 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Samuel Thibault X-Patchwork-Id: 37838 Received: (qmail 96530 invoked by alias); 10 Feb 2020 01:05:22 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 96397 invoked by uid 89); 10 Feb 2020 01:05:21 -0000 Authentication-Results: sourceware.org; auth=none X-Spam-SWARE-Status: No, score=-25.1 required=5.0 tests=AWL, BAYES_00, GIT_PATCH_0, GIT_PATCH_1, GIT_PATCH_2, GIT_PATCH_3, RCVD_IN_DNSWL_NONE, SPF_HELO_PASS, SPF_NEUTRAL autolearn=ham version=3.3.1 spammy=HX-Languages-Length:1028, HContent-Transfer-Encoding:8bit X-HELO: hera.aquilenet.fr From: Samuel Thibault To: libc-alpha@sourceware.org Cc: Samuel Thibault , commit-hurd@gnu.org Subject: [hurd,commited 05/10] htl: Add support for semaphore maximum value Date: Mon, 10 Feb 2020 02:05:03 +0100 Message-Id: <20200210010508.428251-5-samuel.thibault@ens-lyon.org> In-Reply-To: <20200210010508.428251-1-samuel.thibault@ens-lyon.org> References: <20200210010508.428251-1-samuel.thibault@ens-lyon.org> MIME-Version: 1.0 --- sysdeps/htl/sem-post.c | 7 +++++++ sysdeps/mach/hurd/bits/local_lim.h | 3 +++ 2 files changed, 10 insertions(+) diff --git a/sysdeps/htl/sem-post.c b/sysdeps/htl/sem-post.c index 77f297314e..2e0be8fc49 100644 --- a/sysdeps/htl/sem-post.c +++ b/sysdeps/htl/sem-post.c @@ -30,6 +30,13 @@ __sem_post (sem_t *sem) if (sem->__value > 0) /* Do a quick up. */ { + if (sem->__value == SEM_VALUE_MAX) + { + __pthread_spin_unlock (&sem->__lock); + errno = EOVERFLOW; + return -1; + } + assert (sem->__queue == NULL); sem->__value++; __pthread_spin_unlock (&sem->__lock); diff --git a/sysdeps/mach/hurd/bits/local_lim.h b/sysdeps/mach/hurd/bits/local_lim.h index 348eee74bb..8e781e4965 100644 --- a/sysdeps/mach/hurd/bits/local_lim.h +++ b/sysdeps/mach/hurd/bits/local_lim.h @@ -41,3 +41,6 @@ /* The number of threads per process. */ #define _POSIX_THREAD_THREADS_MAX 64 + +/* Maximum value the semaphore can have. */ +#define SEM_VALUE_MAX (2147483647)