/*
* Copyright ( C ) 2016 The Android Open Source Project
* All rights reserved .
*
* Redistribution and use in source and binary forms , with or without
* modification , are permitted provided that the following conditions
* are met :
* * Redistributions of source code must retain the above copyright
* notice , this list of conditions and the following disclaimer .
* * Redistributions in binary form must reproduce the above copyright
* notice , this list of conditions and the following disclaimer in
* the documentation and / or other materials provided with the
* distribution .
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* " AS IS " AND ANY EXPRESS OR IMPLIED WARRANTIES , INCLUDING , BUT NOT
* LIMITED TO , THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED . IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT , INDIRECT ,
* INCIDENTAL , SPECIAL , EXEMPLARY , OR CONSEQUENTIAL DAMAGES ( INCLUDING ,
* BUT NOT LIMITED TO , PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES ; LOSS
* OF USE , DATA , OR PROFITS ; OR BUSINESS INTERRUPTION ) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY , WHETHER IN CONTRACT , STRICT LIABILITY ,
* OR TORT ( INCLUDING NEGLIGENCE OR OTHERWISE ) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE , EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE .
*/
#include <errno.h>
#include <sys/shm.h>
#include <android-base/file.h>
#include <gtest/gtest.h>
TEST(sys_shm, smoke) {
if (shmctl(-1 , IPC_STAT, nullptr) == -1 && errno == ENOSYS) {
GTEST_SKIP() << "no <sys/shm.h> support in this kernel" ;
}
// Create a segment.
TemporaryDir dir;
key_t key = ftok(dir.path, 1 );
int id = shmget(key, 1234 , IPC_CREAT|0666 );
ASSERT_NE(id, -1 );
// Check segment info.
shmid_ds ds = {};
ASSERT_EQ(0 , shmctl(id, IPC_STAT, &ds));
ASSERT_EQ(1234 U, ds.shm_segsz);
// Attach.
void * p = shmat(id, nullptr, SHM_RDONLY);
ASSERT_NE(p, nullptr);
// Detach.
ASSERT_EQ(0 , shmdt(p));
// Destroy the segment.
ASSERT_EQ(0 , shmctl(id, IPC_RMID, nullptr));
}
TEST(sys_shm, shmat_failure) {
errno = 0 ;
ASSERT_EQ(reinterpret_cast <void *>(-1 ), shmat(-1 , nullptr, SHM_RDONLY));
ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
}
TEST(sys_shm, shmctl_failure) {
errno = 0 ;
ASSERT_EQ(-1 , shmctl(-1 , IPC_STAT, nullptr));
ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
}
TEST(sys_shm, shmdt_failure) {
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wnonnull"
errno = 0 ;
ASSERT_EQ(-1 , shmdt(nullptr));
ASSERT_TRUE(errno == EINVAL || errno == ENOSYS);
#pragma clang diagnostic pop
}
TEST(sys_shm, shmget_failure) {
errno = 0 ;
ASSERT_EQ(-1 , shmget(-1 , 1234 , 0 ));
ASSERT_TRUE(errno == ENOENT || errno == ENOSYS);
}
Messung V0.5 in Prozent C=93 H=87 G=89
¤ Dauer der Verarbeitung: 0.13 Sekunden
(vorverarbeitet am 2026-06-28)
¤
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