| File: | jdk/test/hotspot/gtest/logging/logTestUtils.inline.hpp |
| Warning: | line 101, column 7 Value stored to 'ret' during its initialization is never read |
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| 1 | /* |
| 2 | * Copyright (c) 2016, 2019, Oracle and/or its affiliates. All rights reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 20 | * or visit www.oracle.com if you need additional information or have any |
| 21 | * questions. |
| 22 | */ |
| 23 | |
| 24 | #include "logging/log.hpp" |
| 25 | #include "logging/logAsyncWriter.hpp" |
| 26 | #include "logging/logConfiguration.hpp" |
| 27 | #include "logging/logStream.hpp" |
| 28 | #include "memory/resourceArea.hpp" |
| 29 | #include "runtime/os.hpp" |
| 30 | #include "unittest.hpp" |
| 31 | |
| 32 | #define LOG_TEST_STRING_LITERAL"a (hopefully) unique log message for testing" "a (hopefully) unique log message for testing" |
| 33 | |
| 34 | static const char* invalid_selection_substr[] = { |
| 35 | "=", "+", " ", "+=", "+=*", "*+", " +", "**", "++", ".", ",", ",,", ",+", |
| 36 | " *", "all+", "all*", "+all", "+all=Warning", "==Info", "=InfoWarning", |
| 37 | "BadTag+", "logging++", "logging*+", ",=", "gc+gc+" |
| 38 | }; |
| 39 | |
| 40 | static inline bool string_contains_substring(const char* haystack, const char* needle) { |
| 41 | return strstr(haystack, needle) != NULL__null; |
| 42 | } |
| 43 | |
| 44 | static inline bool file_exists(const char* filename) { |
| 45 | struct stat st; |
| 46 | return os::stat(filename, &st) == 0; |
| 47 | } |
| 48 | |
| 49 | static inline void delete_file(const char* filename) { |
| 50 | AsyncLogWriter::flush(); |
| 51 | if (!file_exists(filename)) { |
| 52 | return; |
| 53 | } |
| 54 | int ret = remove(filename); |
| 55 | EXPECT_TRUE(ret == 0 || errno == ENOENT)switch (0) case 0: default: if (const ::testing::AssertionResult gtest_ar_ = ::testing::AssertionResult(ret == 0 || (*__errno_location ()) == 2)) ; else ::testing::internal::AssertHelper(::testing ::TestPartResult::kNonFatalFailure, "/home/daniel/Projects/java/jdk/test/hotspot/gtest/logging/logTestUtils.inline.hpp" , 55, ::testing::internal::GetBoolAssertionFailureMessage( gtest_ar_ , "ret == 0 || errno == ENOENT", "false", "true").c_str()) = :: testing::Message() << "failed to remove file '" << filename << "': " |
| 56 | << os::strerror(errno(*__errno_location ())) << " (" << errno(*__errno_location ()) << ")"; |
| 57 | } |
| 58 | |
| 59 | static inline void create_directory(const char* name) { |
| 60 | assert(!file_exists(name), "can't create directory: %s already exists", name)do { if (!(!file_exists(name))) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/test/hotspot/gtest/logging/logTestUtils.inline.hpp" , 60, "assert(" "!file_exists(name)" ") failed", "can't create directory: %s already exists" , name); ::breakpoint(); } } while (0); |
| 61 | bool failed; |
| 62 | #ifdef _WINDOWS |
| 63 | failed = !CreateDirectory(name, NULL__null); |
| 64 | #else |
| 65 | failed = mkdir(name, 0777); |
| 66 | #endif |
| 67 | assert(!failed, "failed to create directory %s", name)do { if (!(!failed)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/test/hotspot/gtest/logging/logTestUtils.inline.hpp" , 67, "assert(" "!failed" ") failed", "failed to create directory %s" , name); ::breakpoint(); } } while (0); |
| 68 | } |
| 69 | |
| 70 | static inline void delete_empty_directory(const char* name) { |
| 71 | #ifdef _WINDOWS |
| 72 | if (!file_exists(name)) { |
| 73 | return; |
| 74 | } |
| 75 | bool failed; |
| 76 | failed = !RemoveDirectory(name); |
| 77 | EXPECT_FALSE(failed)switch (0) case 0: default: if (const ::testing::AssertionResult gtest_ar_ = ::testing::AssertionResult(!(failed))) ; else :: testing::internal::AssertHelper(::testing::TestPartResult::kNonFatalFailure , "/home/daniel/Projects/java/jdk/test/hotspot/gtest/logging/logTestUtils.inline.hpp" , 77, ::testing::internal::GetBoolAssertionFailureMessage( gtest_ar_ , "failed", "true", "false").c_str()) = ::testing::Message() << "failed to remove directory '" << name |
| 78 | << "': LastError = " << GetLastError(); |
| 79 | #else |
| 80 | delete_file(name); |
| 81 | #endif |
| 82 | } |
| 83 | |
| 84 | static inline void init_log_file(const char* filename, const char* options = "") { |
| 85 | LogStreamHandle(Error, logging)LogStreamTemplate<LogLevel::Error, (LogTag::_logging), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG), (LogTag::__NO_TAG)> stream; |
| 86 | bool success = LogConfiguration::parse_log_arguments(filename, "logging=trace", "", options, &stream); |
| 87 | guarantee(success, "Failed to initialize log file '%s' with options '%s'", filename, options)do { if (!(success)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/test/hotspot/gtest/logging/logTestUtils.inline.hpp" , 87, "guarantee(" "success" ") failed", "Failed to initialize log file '%s' with options '%s'" , filename, options); ::breakpoint(); } } while (0); |
| 88 | log_debug(logging)(!(LogImpl<(LogTag::_logging), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG)>::is_level(LogLevel::Debug))) ? (void)0 : LogImpl <(LogTag::_logging), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::write<LogLevel::Debug>("%s", LOG_TEST_STRING_LITERAL"a (hopefully) unique log message for testing"); |
| 89 | success = LogConfiguration::parse_log_arguments(filename, "all=off", "", "", &stream); |
| 90 | guarantee(success, "Failed to disable logging to file '%s'", filename)do { if (!(success)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/test/hotspot/gtest/logging/logTestUtils.inline.hpp" , 90, "guarantee(" "success" ") failed", "Failed to disable logging to file '%s'" , filename); ::breakpoint(); } } while (0); |
| 91 | } |
| 92 | |
| 93 | static const char* tmp_dir = os::get_temp_directory(); |
| 94 | static const char* file_sep = os::file_separator(); |
| 95 | |
| 96 | // Prepend filename with the temp directory and pid and return the result as a |
| 97 | // resource allocated string. |
| 98 | static inline char* prepend_temp_dir(const char* filename) { |
| 99 | size_t temp_file_len = strlen(tmp_dir) + strlen(file_sep) + strlen(filename) + 28; |
| 100 | char* temp_file = NEW_RESOURCE_ARRAY(char, temp_file_len)(char*) resource_allocate_bytes((temp_file_len) * sizeof(char )); |
| 101 | int ret = jio_snprintf(temp_file, temp_file_len, "%s%spid%d.%s", |
Value stored to 'ret' during its initialization is never read | |
| 102 | tmp_dir, file_sep, |
| 103 | os::current_process_id(), filename); |
| 104 | return temp_file; |
| 105 | } |
| 106 | |
| 107 | // Prepend filename with specified prefix and the temp directory and return the |
| 108 | // result as a malloc allocated string. This is used by test_logFileOutput.cpp. |
| 109 | static inline char* prepend_prefix_temp_dir(const char* prefix, const char* filename) { |
| 110 | size_t temp_file_len = strlen(prefix) + strlen(tmp_dir) + strlen(file_sep) + strlen(filename) + 1; |
| 111 | char* temp_file = (char*)os::malloc(temp_file_len, mtLogging); |
| 112 | int ret = jio_snprintf(temp_file, temp_file_len, "%s%s%s%s", |
| 113 | prefix, tmp_dir, file_sep, filename); |
| 114 | return temp_file; |
| 115 | } |
| 116 | |
| 117 | // Read a complete line from fp and return it as a resource allocated string. |
| 118 | // Returns NULL on EOF. |
| 119 | static inline char* read_line(FILE* fp) { |
| 120 | assert(fp != NULL, "invalid fp")do { if (!(fp != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/test/hotspot/gtest/logging/logTestUtils.inline.hpp" , 120, "assert(" "fp != __null" ") failed", "invalid fp"); :: breakpoint(); } } while (0); |
| 121 | int buflen = 512; |
| 122 | char* buf = NEW_RESOURCE_ARRAY(char, buflen)(char*) resource_allocate_bytes((buflen) * sizeof(char)); |
| 123 | long pos = ftell(fp); |
| 124 | if (pos < 0) return NULL__null; |
| 125 | |
| 126 | char* ret = fgets(buf, buflen, fp); |
| 127 | while (ret != NULL__null && buf[strlen(buf) - 1] != '\n' && !feof(fp)) { |
| 128 | // retry with a larger buffer |
| 129 | buf = REALLOC_RESOURCE_ARRAY(char, buf, buflen, buflen * 2)(char*) resource_reallocate_bytes((char*)(buf), (buflen) * sizeof (char), (buflen * 2) * sizeof(char)); |
| 130 | buflen *= 2; |
| 131 | // rewind to beginning of line |
| 132 | fseek(fp, pos, SEEK_SET0); |
| 133 | // retry read with new buffer |
| 134 | ret = fgets(buf, buflen, fp); |
| 135 | } |
| 136 | return ret; |
| 137 | } |
| 138 | |
| 139 | static bool file_contains_substrings_in_order(const char* filename, const char* substrs[]) { |
| 140 | AsyncLogWriter::flush(); |
| 141 | FILE* fp = fopen(filename, "r"); |
| 142 | assert(fp != NULL, "error opening file %s: %s", filename, strerror(errno))do { if (!(fp != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/test/hotspot/gtest/logging/logTestUtils.inline.hpp" , 142, "assert(" "fp != __null" ") failed", "error opening file %s: %s" , filename, strerror((*__errno_location ()))); ::breakpoint() ; } } while (0); |
| 143 | |
| 144 | size_t idx = 0; |
| 145 | while (substrs[idx] != NULL__null) { |
| 146 | ResourceMark rm; |
| 147 | char* line = read_line(fp); |
| 148 | if (line == NULL__null) { |
| 149 | break; |
| 150 | } |
| 151 | for (char* match = strstr(line, substrs[idx]); match != NULL__null;) { |
| 152 | size_t match_len = strlen(substrs[idx]); |
| 153 | idx++; |
| 154 | if (substrs[idx] == NULL__null) { |
| 155 | break; |
| 156 | } |
| 157 | match = strstr(match + match_len, substrs[idx]); |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | fclose(fp); |
| 162 | return substrs[idx] == NULL__null; |
| 163 | } |
| 164 | |
| 165 | static inline bool file_contains_substring(const char* filename, const char* substr) { |
| 166 | const char* strs[] = {substr, NULL__null}; |
| 167 | return file_contains_substrings_in_order(filename, strs); |
| 168 | } |