11952073af
(aarch64 kernels don't have these system calls.) Change-Id: I6f64075aa412f71520f2df71c3d69b647f91c1ca
113 lines
2.6 KiB
C++
113 lines
2.6 KiB
C++
/*
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* Copyright (C) 2013 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <gtest/gtest.h>
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#include <errno.h>
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#include <stdlib.h>
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#include <sys/select.h>
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TEST(sys_select, fd_set_smoke) {
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fd_set fds;
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FD_ZERO(&fds);
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for (size_t i = 0; i < 1024; ++i) {
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EXPECT_FALSE(FD_ISSET(i, &fds));
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}
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FD_SET(0, &fds);
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EXPECT_TRUE(FD_ISSET(0, &fds));
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EXPECT_FALSE(FD_ISSET(1, &fds));
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FD_SET(1, &fds);
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EXPECT_TRUE(FD_ISSET(0, &fds));
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EXPECT_TRUE(FD_ISSET(1, &fds));
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FD_CLR(0, &fds);
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EXPECT_FALSE(FD_ISSET(0, &fds));
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EXPECT_TRUE(FD_ISSET(1, &fds));
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FD_CLR(1, &fds);
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EXPECT_FALSE(FD_ISSET(0, &fds));
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EXPECT_FALSE(FD_ISSET(1, &fds));
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}
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TEST(sys_select, select_smoke) {
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fd_set r;
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FD_ZERO(&r);
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fd_set w;
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FD_ZERO(&w);
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fd_set e;
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FD_ZERO(&e);
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FD_SET(STDIN_FILENO, &r);
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FD_SET(STDOUT_FILENO, &w);
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FD_SET(STDERR_FILENO, &w);
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int max = STDERR_FILENO + 1;
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// Invalid max fd.
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ASSERT_EQ(-1, select(-1, &r, &w, &e, NULL));
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ASSERT_EQ(EINVAL, errno);
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ASSERT_EQ(2, select(max, &r, &w, &e, NULL));
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// Invalid timeout.
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timeval tv;
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tv.tv_sec = -1;
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tv.tv_usec = 0;
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ASSERT_EQ(-1, select(max, &r, &w, &e, &tv));
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ASSERT_EQ(EINVAL, errno);
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// Valid timeout...
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tv.tv_sec = 1;
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ASSERT_EQ(2, select(max, &r, &w, &e, &tv));
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ASSERT_NE(0, tv.tv_usec); // ...which got updated.
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}
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TEST(sys_select, pselect_smoke) {
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sigset_t ss;
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sigemptyset(&ss);
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sigaddset(&ss, SIGPIPE);
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fd_set r;
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FD_ZERO(&r);
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fd_set w;
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FD_ZERO(&w);
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fd_set e;
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FD_ZERO(&e);
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FD_SET(STDIN_FILENO, &r);
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FD_SET(STDOUT_FILENO, &w);
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FD_SET(STDERR_FILENO, &w);
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int max = STDERR_FILENO + 1;
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// Invalid max fd.
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ASSERT_EQ(-1, pselect(-1, &r, &w, &e, NULL, &ss));
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ASSERT_EQ(EINVAL, errno);
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ASSERT_EQ(2, pselect(max, &r, &w, &e, NULL, &ss));
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// Invalid timeout.
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timespec tv;
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tv.tv_sec = -1;
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tv.tv_nsec = 0;
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ASSERT_EQ(-1, pselect(max, &r, &w, &e, &tv, &ss));
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ASSERT_EQ(EINVAL, errno);
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// Valid timeout...
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tv.tv_sec = 1;
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ASSERT_EQ(2, pselect(max, &r, &w, &e, &tv, &ss));
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ASSERT_EQ(0, tv.tv_nsec); // ...which did _not_ get updated.
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}
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