108 lines
3.2 KiB
C++
108 lines
3.2 KiB
C++
/*
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* Copyright (C) 2012 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 <string.h>
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TEST(string, strerror) {
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// Valid.
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ASSERT_STREQ("Success", strerror(0));
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ASSERT_STREQ("Operation not permitted", strerror(1));
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// Invalid.
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ASSERT_STREQ("Unknown error 4294967295", strerror(-1));
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ASSERT_STREQ("Unknown error 1234", strerror(1234));
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}
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void* ConcurrentStrErrorFn(void* arg) {
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bool equal = (strcmp("Unknown error 2002", strerror(2002)) == 0);
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return reinterpret_cast<void*>(equal);
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}
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#if __BIONIC__ // glibc's strerror isn't thread safe, only its strsignal.
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TEST(string, strerror_concurrent) {
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const char* strerror1001 = strerror(1001);
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ASSERT_STREQ("Unknown error 1001", strerror1001);
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pthread_t t;
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ASSERT_EQ(0, pthread_create(&t, NULL, ConcurrentStrErrorFn, NULL));
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void* result;
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ASSERT_EQ(0, pthread_join(t, &result));
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ASSERT_TRUE(static_cast<bool>(result));
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ASSERT_STREQ("Unknown error 1001", strerror1001);
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}
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#endif
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#if __BIONIC__ // glibc's strerror_r doesn't even have the same signature as the POSIX one.
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TEST(string, strerror_r) {
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char buf[256];
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// Valid.
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ASSERT_EQ(0, strerror_r(0, buf, sizeof(buf)));
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ASSERT_STREQ("Success", buf);
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ASSERT_EQ(0, strerror_r(1, buf, sizeof(buf)));
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ASSERT_STREQ("Operation not permitted", buf);
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// Invalid.
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ASSERT_EQ(0, strerror_r(-1, buf, sizeof(buf)));
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ASSERT_STREQ("Unknown error 4294967295", buf);
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ASSERT_EQ(0, strerror_r(1234, buf, sizeof(buf)));
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ASSERT_STREQ("Unknown error 1234", buf);
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// Buffer too small.
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ASSERT_EQ(-1, strerror_r(0, buf, 2));
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ASSERT_EQ(ERANGE, errno);
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}
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#endif
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TEST(string, strsignal) {
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// A regular signal.
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ASSERT_STREQ("Hangup", strsignal(1));
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// A real-time signal.
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#ifdef __GLIBC__ // glibc reserves real-time signals for internal use, and doesn't count those.
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ASSERT_STREQ("Real-time signal 14", strsignal(48));
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#else
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ASSERT_STREQ("Real-time signal 16", strsignal(48));
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#endif
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// Errors.
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ASSERT_STREQ("Unknown signal -1", strsignal(-1)); // Too small.
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ASSERT_STREQ("Unknown signal 0", strsignal(0)); // Still too small.
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ASSERT_STREQ("Unknown signal 1234", strsignal(1234)); // Too large.
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}
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void* ConcurrentStrSignalFn(void* arg) {
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bool equal = (strcmp("Unknown signal 2002", strsignal(2002)) == 0);
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return reinterpret_cast<void*>(equal);
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}
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TEST(string, strsignal_concurrent) {
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const char* strsignal1001 = strsignal(1001);
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ASSERT_STREQ("Unknown signal 1001", strsignal1001);
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pthread_t t;
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ASSERT_EQ(0, pthread_create(&t, NULL, ConcurrentStrSignalFn, NULL));
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void* result;
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ASSERT_EQ(0, pthread_join(t, &result));
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ASSERT_TRUE(static_cast<bool>(result));
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ASSERT_STREQ("Unknown signal 1001", strsignal1001);
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}
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