163 lines
3.8 KiB
C++
Executable File
163 lines
3.8 KiB
C++
Executable File
/*
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* Copyright (c) 2021 Huawei Device Co., Ltd.
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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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// utils for multi-thread and multi-process test
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#include "mt_utils.h"
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#include <pthread.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <sys/types.h>
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#include <sys/shm.h>
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#include "log.h"
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#define MAX_INDEX 12
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const uint32_t MSECOND_INDEX[MAX_INDEX] = {10, 20, 30, 60, 100, 150, 200, 300, 400, 600, 1000, 2000};
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const uint32_t NUMBER_INDEX[MAX_INDEX] = {2500, 3600, 4500, 6600, 8800, 1000, 12000, 15000, 18000, 2000, 3000, 42000 };
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int g_shmidCheckStep = 0;
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uint64_t CheckStep(int value)
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{
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if (value == 1) {
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shmctl(g_shmidCheckStep, IPC_RMID, nullptr);
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g_shmidCheckStep = shmget(IPC_PRIVATE, 1024, 0666 | IPC_CREAT);
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}
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if (g_shmidCheckStep != -1) {
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uint64_t *shared = (uint64_t *)shmat(g_shmidCheckStep, nullptr, 0);
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if (value == 1) {
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*shared = 1;
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} else {
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*shared = (*shared << 4) + value;
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}
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uint64_t state = *shared;
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shmdt(shared);
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return state;
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}
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return 0;
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}
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int CountPrimes(uint32_t maxNumber)
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{
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uint32_t primesCount = 0;
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uint32_t i, num;
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for (num = 2; num <= maxNumber; ++num) {
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for (i = 2; i <= num; i++) {
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if (num % i == 0) {
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break;
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}
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}
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if (i == num) {
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primesCount++;
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}
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}
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return primesCount;
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}
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static uint32_t GetNumberFromMS(uint32_t ms)
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{
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for (uint32_t i = 0; i < MAX_INDEX; i++) {
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if (MSECOND_INDEX[i] == ms) {
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return NUMBER_INDEX[i];
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}
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}
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return 0;
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}
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int BusyRun(uint32_t ms)
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{
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uint32_t n = GetNumberFromMS(ms);
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if (n == 0) {
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LOG("BusyRun Error: %d ms not support", n);
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_exit(1);
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}
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return CountPrimes(n);
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}
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// pipe for sync in ipc
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static int g_pipeFd[2];
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int InitPipe()
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{
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return pipe(g_pipeFd);
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}
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void UnBlockPipe()
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{
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close(g_pipeFd[0]);
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close(g_pipeFd[1]);
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}
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void BlockOnPipe()
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{
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close(g_pipeFd[1]);
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char buffer[2];
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LOGD("before pipe read");
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read(g_pipeFd[0], buffer, 1); // will block until close(fd[1]) in another port
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LOGD("after pipe read");
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close(g_pipeFd[0]);
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}
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// shm for process
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int g_shmidGlobal;
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int InitGlobalVariable(void)
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{
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g_shmidGlobal = shmget(IPC_PRIVATE, 1024, 0666 | IPC_CREAT);
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if (g_shmidGlobal == -1) {
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LOG("> shmget errno = %d", errno);
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return -1;
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}
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return 0;
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}
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int SetGlobalVariable(int value)
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{
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int *shared = (int *)shmat(g_shmidGlobal, nullptr, 0);
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if (shared == (int *)(-1)) {
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LOG("> shmat errno = %d", errno);
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return -1;
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}
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*shared = value;
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if ((shmdt(shared)) == -1) {
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LOG("> shmdt errno = %d", errno);
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return -1;
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}
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return 0;
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}
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int GetGlobalVariable(void)
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{
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int re;
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int *shared = (int *)shmat(g_shmidGlobal, nullptr, 0);
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if (shared == (int*)(-1)) {
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LOG("> shmat errno = %d", errno);
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return -1;
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}
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re = *shared;
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if ((shmdt(shared)) == -1) {
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LOG("> shmdt errno = %d", errno);
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return -1;
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}
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return re;
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}
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int DeleteGlobalVariable(void)
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{
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if (shmctl(g_shmidGlobal, IPC_RMID, nullptr) == -1) {
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LOG("> shmctl errno = %d", errno);
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return -1;
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}
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return 1;
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}
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