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      1 /* $NetBSD: t_ksem.c,v 1.1 2019/02/03 03:20:24 thorpej Exp $ */
      2 
      3 /*
      4  * Copyright (c) 2019 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #include <sys/cdefs.h>
     30 __COPYRIGHT("@(#) Copyright (c) 2019\
     31  The NetBSD Foundation, inc. All rights reserved.");
     32 __RCSID("$NetBSD: t_ksem.c,v 1.1 2019/02/03 03:20:24 thorpej Exp $");
     33 
     34 #include <sys/mman.h>
     35 #include <sys/wait.h>
     36 
     37 #include <errno.h>
     38 #include <fcntl.h>
     39 #include <stdio.h>
     40 #include <unistd.h>
     41 
     42 #include <atf-c.h>
     43 
     44 #define	_LIBC
     45 #include <sys/ksem.h>
     46 
     47 ATF_TC(close_on_unnamed);
     48 ATF_TC_HEAD(close_on_unnamed, tc)
     49 {
     50 	atf_tc_set_md_var(tc, "descr",
     51 	    "test for correct error on close of unnamed semaphore");
     52 }
     53 ATF_TC_BODY(close_on_unnamed, tc)
     54 {
     55 	intptr_t ksem;
     56 
     57 	/* _ksem_close() is invalid on unnamed semaphore. */
     58 	ksem = 0;
     59 	ATF_REQUIRE_EQ(_ksem_init(0, &ksem), 0);
     60 	ATF_REQUIRE(_ksem_close(ksem) == -1 && errno == EINVAL);
     61 	ATF_REQUIRE_EQ(_ksem_destroy(ksem), 0);
     62 }
     63 
     64 ATF_TC(close_on_unnamed_pshared);
     65 ATF_TC_HEAD(close_on_unnamed_pshared, tc)
     66 {
     67 	atf_tc_set_md_var(tc, "descr",
     68 	    "test for correct error on close of unnamed pshared semaphore");
     69 }
     70 ATF_TC_BODY(close_on_unnamed_pshared, tc)
     71 {
     72 	intptr_t ksem;
     73 
     74 	/* Similar, but lifecycle of pshared is slightly different. */
     75 	ksem = KSEM_PSHARED;
     76 	ATF_REQUIRE_EQ(_ksem_init(0, &ksem), 0);
     77 	ATF_REQUIRE(_ksem_close(ksem) == -1 && errno == EINVAL);
     78 	ATF_REQUIRE_EQ(_ksem_destroy(ksem), 0);
     79 }
     80 
     81 ATF_TC_WITH_CLEANUP(destroy_on_named);
     82 ATF_TC_HEAD(destroy_on_named, tc)
     83 {
     84 	 atf_tc_set_md_var(tc, "descr",
     85 	     "test for correct error on destroy of named semaphore");
     86 }
     87 ATF_TC_BODY(destroy_on_named, tc)
     88 {
     89 	intptr_t ksem;
     90 
     91 	/* Exercise open-unlinked semaphore lifecycle. */
     92 	ATF_REQUIRE_EQ(_ksem_open("/ksem_x", O_CREAT | O_EXCL, 0644, 0, &ksem),
     93 	    0);
     94 	ATF_REQUIRE(_ksem_destroy(ksem) == -1 && errno == EINVAL);
     95 	ATF_REQUIRE_EQ(_ksem_close(ksem), 0);
     96 	ATF_REQUIRE_EQ(_ksem_unlink("/ksem_x"), 0);
     97 }
     98 ATF_TC_CLEANUP(destroy_on_named, tc)
     99 {
    100 	(void)_ksem_unlink("/ksem_x");
    101 }
    102 
    103 ATF_TC_WITH_CLEANUP(open_unlinked_lifecycle);
    104 ATF_TC_HEAD(open_unlinked_lifecycle, tc)
    105 {
    106 	atf_tc_set_md_var(tc, "descr",
    107 	    "Exercises lifecycle of open-unlined semaphores");
    108 }
    109 ATF_TC_BODY(open_unlinked_lifecycle, tc)
    110 {
    111 	intptr_t ksem, ksem1;
    112 	int val;
    113 
    114 	/* Exercise open-unlinked semaphore lifecycle. */
    115 	ATF_REQUIRE_EQ(_ksem_open("/ksem_b", O_CREAT | O_EXCL, 0644, 0, &ksem),
    116 	    0);
    117 	ATF_REQUIRE_EQ(_ksem_unlink("/ksem_b"), 0);
    118 	val = 255;
    119 	ATF_REQUIRE(_ksem_getvalue(ksem, &val) == 0 && val == 0);
    120 
    121 	ATF_REQUIRE_EQ(_ksem_open("/ksem_b", O_CREAT | O_EXCL, 0644, 1, &ksem1),
    122 	    0);
    123 	ATF_REQUIRE_EQ(_ksem_unlink("/ksem_b"), 0);
    124 	val = 255;
    125 	ATF_REQUIRE(_ksem_getvalue(ksem1, &val) == 0 && val == 1);
    126 
    127 	ATF_REQUIRE_EQ(_ksem_close(ksem), 0);
    128 	ATF_REQUIRE_EQ(_ksem_close(ksem1), 0);
    129 }
    130 ATF_TC_CLEANUP(open_unlinked_lifecycle, tc)
    131 {
    132 	(void)_ksem_unlink("/ksem_a");
    133 	(void)_ksem_unlink("/ksem_b");
    134 }
    135 
    136 ATF_TP_ADD_TCS(tp)
    137 {
    138 
    139 	ATF_TP_ADD_TC(tp, close_on_unnamed);
    140 	ATF_TP_ADD_TC(tp, close_on_unnamed_pshared);
    141 	ATF_TP_ADD_TC(tp, destroy_on_named);
    142 	ATF_TP_ADD_TC(tp, open_unlinked_lifecycle);
    143 
    144 	return atf_no_error();
    145 }
    146