127 lines
4.1 KiB
C++
127 lines
4.1 KiB
C++
/**
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* Copyright (c) 2021 OceanBase
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* OceanBase CE is licensed under Mulan PubL v2.
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* You can use this software according to the terms and conditions of the Mulan PubL v2.
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* You may obtain a copy of Mulan PubL v2 at:
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* http://license.coscl.org.cn/MulanPubL-2.0
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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* See the Mulan PubL v2 for more details.
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*/
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#include <gtest/gtest.h>
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#include <tuple>
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#include "lib/allocator/ob_malloc.h"
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#include "lib/utility/ob_print_utils.h"
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#include "lib/string/ob_string.h"
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#include "lib/utility/ob_tracepoint.h"
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using namespace oceanbase::common;
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/*
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TEST(print_utility, hex_print)
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{
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const int64_t data_size = 10;
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char data[10];
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for (int64_t i = 0; i < 10; ++i) {
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data[i] = (char)(random()%255);
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}
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char buff_h[21];
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char buff_p[21];
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int64_t pos = 0;
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int ret = hex_print(data, data_size, buff_h, 20, pos);
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ASSERT_EQ(OB_SUCCESS, ret);
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ASSERT_EQ(buff_h[20], '\0');
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ASSERT_EQ(strlen(buff_h), 20);
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char *bf = buff_p;
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int64_t len = 0;
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for (int64_t i = 0; i < 10; ++i) {
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len = snprintf(bf, 20 - i*2, "%02X", (unsigned char)data[i]);
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bf += len;
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}
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ASSERT_EQ(buff_p[19], '\0');
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pos = 0;
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ret = hex_print(data, data_size, buff_h, 21, pos);
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ASSERT_EQ(OB_SUCCESS, ret);
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ASSERT_EQ(buff_h[20], '\0');
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bf = buff_p;
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for (int64_t i = 0; i < 10; ++i) {
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len = snprintf(bf, 21 - i*2, "%02X", (unsigned char)data[i]);
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bf += len;
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}
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ASSERT_EQ(strcasecmp(buff_h, buff_p), 0);
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pos = 0;
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ret = hex_print(NULL, data_size, buff_h, 21, pos);
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ASSERT_EQ(OB_INVALID_ARGUMENT, ret);
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pos = 0;
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ret = hex_print(data, -1, buff_h, 21, pos);
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ASSERT_EQ(OB_SUCCESS, ret);
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}*/
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template <typename ...T>
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class ObTuple
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{
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public:
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template <typename ...Args>
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ObTuple(Args &&...args) : tuple_(std::forward<Args>(args)...) {}
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int64_t to_string(char *buf, const int64_t buf_len) const
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{
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int64_t pos = 0;
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print_<0>(buf, buf_len, pos);
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return pos;
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}
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template <int N>
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int64_t print_(char *buf, const int64_t buf_len, int64_t &pos) const
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{
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if (N == 0) {
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databuff_printf(buf, buf_len, pos, "{");
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}
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databuff_printf(buf, buf_len, pos, "%s,", to_cstring(std::get<N>(tuple_)));
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print_<N+1>(buf, buf_len, pos);
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return pos;
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}
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template <>
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int64_t print_<sizeof...(T) - 1>(char *buf, const int64_t buf_len, int64_t &pos) const
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{
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databuff_printf(buf, buf_len, pos, "%s}", to_cstring(std::get<sizeof...(T) - 1>(tuple_)));
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return pos;
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}
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private:
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std::tuple<T...> tuple_;
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};
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TEST(print_utility, to_cstring)
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{
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typedef ObTuple<ObString,int64_t> MyTuple;
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const int size = 1300;
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const int number = 10;
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char data[size * number];
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char *buffer = (char*)ob_malloc(sizeof(MyTuple) * number, ObNewModIds::TEST);
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MyTuple *tuples[number];
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for (int n = 0; n < number; ++n) {
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memset(&data[n * size], 'a' + n, size - 1);
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data[size * (n+1) - 1] = '\0';
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tuples[n] = new (buffer + sizeof(MyTuple) * n) MyTuple(data + size * n, n);
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}
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// mutiply call to_cstring at the same time
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_OB_LOG(INFO, "print tuple string, {%s}, {%s}, {%s}",
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to_cstring(*tuples[0]), to_cstring(*tuples[1]), to_cstring(*tuples[2]));
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_OB_LOG(INFO, "print tuple string, {%s}, {%s}, {%s}, {%s}, {%s}, {%s}, {%s}", to_cstring(*tuples[3]), to_cstring(*tuples[4]),
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to_cstring(*tuples[5]), to_cstring(*tuples[6]), to_cstring(*tuples[7]), to_cstring(*tuples[8]), to_cstring(*tuples[9]));
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// the performance of to_cstring when observer reach memory limit
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EventItem item;
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item.trigger_freq_ = 1;
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item.error_code_ = OB_ALLOCATE_MEMORY_FAILED;
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::oceanbase::common::EventTable::instance().set_event(EventTable::EN_4, item);
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_OB_LOG(INFO, "print tuple string, {%s}\n", to_cstring(*tuples[0]));
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}
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int main(int argc, char **argv)
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{
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system("rm -rf test_print_utility.log");
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OB_LOGGER.set_log_level("INFO");
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OB_LOGGER.set_file_name("test_print_utility.log", true);
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testing::InitGoogleTest(&argc,argv);
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return RUN_ALL_TESTS();
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} |