From patchwork Tue Nov 8 20:30:02 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Adhemerval Zanella Netto X-Patchwork-Id: 17312 Received: (qmail 125859 invoked by alias); 8 Nov 2016 20:30:50 -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 125536 invoked by uid 89); 8 Nov 2016 20:30:46 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.4 required=5.0 tests=BAYES_00, RCVD_IN_DNSWL_NONE, RCVD_IN_SORBS_SPAM, SPF_PASS autolearn=no version=3.3.2 spammy=nsec X-HELO: mail-ua0-f173.google.com X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:from:to:subject:date:message-id:in-reply-to :references; bh=WJldwrI/fBpAR89Qnb+Jkj6U9AXiHDo7XjiRWfR8hu0=; b=S0YfruyGE3M3yGNqDfvk+23ZbgCI5j21ezhCrLA1PwuEiPajX7g+0XzMT0TlZws3Ec +ZvFbxdYJwgYICtlX3dOIeOmgCeE7vr5mzG3N3sJ/btYXvTiJ+8E/q6X72bEYHPbO014 OPXqQ+cEXmHkKYylkwYzI3eC+QFEEOBOJHQQWFgMV25YU+cK3Oc35q/o8dDrmSbQV6gt HaygQJwqrs3TsTBbSNl+KJckggGYNAavypPYsCdg1BhDG8wIJLE5z1Zg3Qz1eFHJDX85 fYQgi4XdAzISEYV7dvndUhzSRlP/klflEGMvCYX1V6QXLDR7/kb6281FqlnUsLmFIQfx AGDw== X-Gm-Message-State: ABUngvdsT04CUOe8mIvPyOgcdnx9hDM/aQRH4bFmYgcG7fnIntVcYQ8wqJy9rZaB3gJBdZi6 X-Received: by 10.159.41.7 with SMTP id t7mr9307542uat.110.1478637034197; Tue, 08 Nov 2016 12:30:34 -0800 (PST) From: Adhemerval Zanella To: libc-alpha@sourceware.org Subject: [PATCH v3 12/17] Add SYSV semaphore test Date: Tue, 8 Nov 2016 18:30:02 -0200 Message-Id: <1478637007-31212-13-git-send-email-adhemerval.zanella@linaro.org> In-Reply-To: <1478637007-31212-1-git-send-email-adhemerval.zanella@linaro.org> References: <1478637007-31212-1-git-send-email-adhemerval.zanella@linaro.org> Changes from previous version: - Change some error strings (it was using message queue names). --- This patch adds a simple SYSV semaphore test to check for correct argument passing on kernel. The idea is neither to be an extensive testing nor to check for any specific Linux test. * sysvipc/Makefile (tests): Add test-sysvsem. * sysvipc/test-sysvsem.c: New file. --- ChangeLog | 3 ++ sysvipc/Makefile | 2 +- sysvipc/test-sysvsem.c | 116 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 120 insertions(+), 1 deletion(-) create mode 100644 sysvipc/test-sysvsem.c diff --git a/sysvipc/Makefile b/sysvipc/Makefile index 73bb9cf..32d64dc 100644 --- a/sysvipc/Makefile +++ b/sysvipc/Makefile @@ -30,7 +30,7 @@ routines := ftok \ semop semget semctl semtimedop \ shmat shmdt shmget shmctl -tests := test-sysvmsg +tests := test-sysvmsg test-sysvsem include ../Rules diff --git a/sysvipc/test-sysvsem.c b/sysvipc/test-sysvsem.c new file mode 100644 index 0000000..b71bc03 --- /dev/null +++ b/sysvipc/test-sysvsem.c @@ -0,0 +1,116 @@ +/* Basic tests for SYSV semaphore functions. + Copyright (C) 2016 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include +#include +#include +#include +#include + +static void do_prepare (void); +#define PREPARE(argc, argv) do_prepare () +static int do_test (void); +#define TEST_FUNCTION do_test () + +/* This defines the `main' function and some more. */ +#include + +/* These are for the temporary file we generate. */ +static char *name; +static int semid; + +static void +remove_sem (void) +{ + /* Enforce message queue removal in case o early test failure. + Ignore error since the msgq maybe already being removed. */ + semctl (semid, 0, IPC_RMID, 0); +} + +static void +do_prepare (void) +{ + int fd = create_temp_file ("tst-sysvsem.", &name); + if (fd == -1) + FAIL_EXIT1 ("cannot create temporary file (errno=%d)", errno); +} + +/* It is not an extensive test, but rather a functional one aimed to check + correct parameter passing on kernel. */ + +#define SEM_MODE 0644 + +static int +do_test (void) +{ + atexit (remove_sem); + + key_t key = ftok (name, 'G'); + if (key == -1) + FAIL_EXIT1 ("ftok failed"); + + semid = semget(key, 1, IPC_CREAT | IPC_EXCL | SEM_MODE); + if (semid == -1) + { + if (errno == ENOSYS) + FAIL_UNSUPPORTED ("msgget not supported"); + FAIL_EXIT1 ("semget failed (errno=%d)", errno); + } + + /* Get semaphore kernel information and do some sanitiy checks. */ + struct semid_ds seminfo; + if (semctl (semid, 0, IPC_STAT, &seminfo) == -1) + FAIL_EXIT1 ("semctl with IPC_STAT failed (errno=%d)", errno); + + if (seminfo.sem_perm.__key != key) + FAIL_EXIT1 ("semid_ds::sem_perm::key (%d) != %d", + (int) seminfo.sem_perm.__key, (int) key); + if (seminfo.sem_perm.mode != SEM_MODE) + FAIL_EXIT1 ("semid_ds::sem_perm::mode (%o) != %o", + seminfo.sem_perm.mode, SEM_MODE); + if (seminfo.sem_nsems != 1) + FAIL_EXIT1 ("semid_ds::sem_nsems (%lu) != 1", + (long unsigned) seminfo.sem_nsems); + + /* Some lock/unlock basic tests. */ + struct sembuf sb1 = { 0, 1, 0 }; + if (semop (semid, &sb1, 1) == -1) + FAIL_EXIT1 ("semop failed (errno=%i)", errno); + + struct sembuf sb2 = { 0, -1, 0 }; + if (semop (semid, &sb2, 1) == -1) + FAIL_EXIT1 ("semop failed (errno=%i)", errno); + +#ifdef _GNU_SOURCE + /* Set a time for half a second. The semaphore operation should timeout + with EAGAIN. */ + struct timespec ts = { 0 /* sec */, 500000000 /* nsec */ }; + if (semtimedop (semid, &sb2, 1, &ts) != -1 + || (errno != EAGAIN && errno != ENOSYS)) + FAIL_EXIT1 ("semtimedop succeed or returned errno != {EAGAIN,ENOSYS} " + "(errno=%i)", errno); +#endif + + /* Finally free up the semnaphore resource. */ + if (semctl (semid, 0, IPC_RMID, 0) == -1) + FAIL_EXIT1 ("semctl failed (errno=%d)", errno); + + return 0; +}