123

kernel_liteos_a-master/testsuites/unittest/process/basic/pthread/smoke/pthread_atfork_test_002.cpp

@@ -1,3 +1,4 @@
+// 版权声明
 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
  * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
@@ -28,27 +29,35 @@
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
+// 包含头文件
 #include "it_pthread_test.h"
 #include <time.h>
 
+// 声明外部函数nanosleep，用于线程休眠
 extern int nanosleep(const struct timespec *req, struct timespec *rem);
 
+// 定义全局互斥锁和测试变量
 static pthread_mutex_t g_mux = PTHREAD_MUTEX_INITIALIZER;
 static volatile int g_testAtforkCount = 0;
 static int g_testAtforkPrepare = 0;
 static int g_testAtforkParent = 0;
 
+// 线程函数Doit，用于测试pthread_atfork
 static void *Doit(void *arg)
 {
     int err;
-    struct timespec ts = { 2, 0 }; // 2, set time 2s.
+    struct timespec ts = { 2, 0 }; // 设置休眠时间为2秒
 
+    // 断言g_testAtforkCount为1
     ICUNIT_GOTO_EQUAL(g_testAtforkCount, 1, g_testAtforkCount, EXIT);
 
+    // 尝试获取互斥锁
     err = pthread_mutex_lock(&g_mux);
     ICUNIT_GOTO_EQUAL(err, 0, err, EXIT);
 
+    // 休眠2秒
     (void)nanosleep(&ts, NULL);
+    // 释放互斥锁
     err = pthread_mutex_unlock(&g_mux);
     ICUNIT_GOTO_EQUAL(err, 0, err, EXIT);
 
@@ -56,17 +65,22 @@ EXIT:
     return NULL;
 }
 
+// 线程函数Doit1，与Doit类似，用于测试pthread_atfork
 static void *Doit1(void *arg)
 {
     int err;
-    struct timespec ts = { 2, 0 }; // 2, set time 2s.
+    struct timespec ts = { 2, 0 }; // 设置休眠时间为2秒
 
+    // 断言g_testAtforkCount为1
     ICUNIT_GOTO_EQUAL(g_testAtforkCount, 1, g_testAtforkCount, EXIT);
 
+    // 尝试获取互斥锁
     err = pthread_mutex_lock(&g_mux);
     ICUNIT_GOTO_EQUAL(err, 0, err, EXIT);
 
+    // 休眠2秒
     (void)nanosleep(&ts, NULL);
+    // 释放互斥锁
     err = pthread_mutex_unlock(&g_mux);
     ICUNIT_GOTO_EQUAL(err, 0, err, EXIT);
 
@@ -74,15 +88,19 @@ EXIT:
     return NULL;
 }
 
+// Prepare函数，在fork之前调用
 static void Prepare(void)
 {
     int err;
 
+    // 释放互斥锁
     err = pthread_mutex_unlock(&g_mux);
     ICUNIT_ASSERT_EQUAL_VOID(err, 0, err);
+    // 增加Prepare函数的调用次数
     g_testAtforkPrepare++;
 }
 
+// Parent函数，在fork之后在父进程中调用
 static void Parent(void)
 {
     int err = pthread_mutex_lock(&g_mux);
@@ -90,79 +108,56 @@ static void Parent(void)
     g_testAtforkParent++;
 }
 
+// 测试pthread_atfork的函数
 static void *PthreadAtforkTest(void *arg)
 {
     int err, ret;
     int pid;
     int status = 0;
-    struct timespec ts = { 1, 0 };
+    struct timespec ts = { 1, 0 }; // 设置休眠时间为1秒
     pthread_t tid;
 
+    // 初始化测试变量
     g_testAtforkCount = 0;
     g_testAtforkPrepare = 0;
     g_testAtforkParent = 0;
 
+    // 设置fork时的回调函数
     err = pthread_atfork(Prepare, Parent, NULL);
     ICUNIT_GOTO_EQUAL(err, 0, err, EXIT);
+    // 增加fork调用次数
     g_testAtforkCount++;
+    // 创建线程Doit
     err = pthread_create(&tid, NULL, Doit, NULL);
     ICUNIT_GOTO_EQUAL(err, 0, err, EXIT);
 
+    // 休眠1秒
     nanosleep(&ts, NULL);
+    // 执行fork
     pid = fork();
     ICUNIT_GOTO_EQUAL(g_testAtforkPrepare, 1, g_testAtforkPrepare, EXIT);
     if (pid == 0) {
+        // 子进程中执行Doit1
         Doit1(NULL);
-        exit(10); // 10, set exit status.
+        // 设置退出状态
+        exit(10); // 设置退出状态为10
     }
 
-    ICUNIT_GOTO_WITHIN_EQUAL(pid, 0, 100000, pid, EXIT_WAIT); // 100000, The pid will never exceed 100000.
+    // 父进程等待子进程结束
+    ICUNIT_GOTO_WITHIN_EQUAL(pid, 0, 100000, pid, EXIT_WAIT); // 确保pid不会超过100000
     ICUNIT_GOTO_EQUAL(g_testAtforkParent, 1, g_testAtforkParent, EXIT_WAIT);
 
+    // 等待线程Doit结束
     err = pthread_join(tid, NULL);
     ICUNIT_GOTO_EQUAL(err, 0, err, EXIT_WAIT);
 
-
+    // 等待子进程结束并获取退出状态
     err = waitpid(pid, &status, 0);
     status = WEXITSTATUS(status);
     ICUNIT_GOTO_EQUAL(err, pid, err, EXIT);
-    ICUNIT_GOTO_EQUAL(status, 10, status, EXIT); // 10, get exit status.
+    ICUNIT_GOTO_EQUAL(status, 10, status, EXIT); // 获取子进程的退出状态
 
 EXIT:
     return NULL;
 
-EXIT_WAIT:
-    (void)waitpid(pid, 0, 0);
-    return NULL;
-}
-
-static int Testcase(void)
-{
-    int ret;
-    pthread_t newPthread;
-    int curThreadPri, curThreadPolicy;
-    pthread_attr_t a = { 0 };
-    struct sched_param param = { 0 };
-
-    ret = pthread_getschedparam(pthread_self(), &curThreadPolicy, &param);
-    ICUNIT_ASSERT_EQUAL(ret, 0, -ret);
-
-    curThreadPri = param.sched_priority;
-
-    ret = pthread_attr_init(&a);
-    pthread_attr_setinheritsched(&a, PTHREAD_EXPLICIT_SCHED);
-    param.sched_priority = curThreadPri + 2; // 2, adjust the priority.
-    pthread_attr_setschedparam(&a, &param);
-    ret = pthread_create(&newPthread, &a, PthreadAtforkTest, 0);
-    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
-
-    ret = pthread_join(newPthread, NULL);
-    ICUNIT_ASSERT_EQUAL(ret, 0, ret);
-
-    return 0;
-}
-
-void ItTestPthreadAtfork002(void)
-{
-    TEST_ADD_CASE("IT_PTHREAD_ATFORK_002", Testcase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
-}
+EXIT

kernel_liteos_a-master/testsuites/unittest/process/basic/pthread/smoke/pthread_cond_test_001.cpp

@@ -1,3 +1,4 @@
+// 版权声明
 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
  * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
@@ -28,27 +29,33 @@
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-#include "it_pthread_test.h"
+#include "it_pthread_test.h" // 包含测试框架头文件
 
-static pthread_mutex_t g_pthreadMuxTest1;
-static pthread_cond_t g_pthdCondTest1;
+// 全局变量声明
+static pthread_mutex_t g_pthreadMuxTest1; // 全局互斥锁
+static pthread_cond_t g_pthdCondTest1; // 全局条件变量
 
+// 线程函数PthreadF01
 static void *PthreadF01(void *t)
 {
-    int rc;
+    int rc; // 用于存储函数返回值
 
+    // 加锁
     rc = pthread_mutex_lock(&g_pthreadMuxTest1);
     ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
 
+    // 增加测试计数器
     g_testCount++;
-    LosTaskDelay(100);
-    ICUNIT_GOTO_EQUAL(g_testCount, 2, g_testCount, EXIT); // 2, here assert the result.
-    g_testCount++;
+    LosTaskDelay(100); // 延迟100ms
+    ICUNIT_GOTO_EQUAL(g_testCount, 2, g_testCount, EXIT); // 断言测试计数器值为2
+
+    g_testCount++; // 增加测试计数器
 
+    // 等待条件变量
     rc = pthread_cond_wait(&g_pthdCondTest1, &g_pthreadMuxTest1);
     ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
 
-    ICUNIT_GOTO_EQUAL(g_testCount, 5, g_testCount, EXIT); // 5, here assert the result.
+    ICUNIT_GOTO_EQUAL(g_testCount, 5, g_testCount, EXIT); // 断言测试计数器值为5
     rc = pthread_mutex_unlock(&g_pthreadMuxTest1);
     ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
 
@@ -56,6 +63,7 @@ EXIT:
     return NULL;
 }
 
+// 线程函数PthreadF02
 static void *PthreadF02(void *t)
 {
     int i;
@@ -66,50 +74,56 @@ static void *PthreadF02(void *t)
     rc = pthread_mutex_lock(&g_pthreadMuxTest1);
     ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
 
-    ICUNIT_GOTO_EQUAL(g_testCount, 3, g_testCount, EXIT); // 3, here assert the result.
+    ICUNIT_GOTO_EQUAL(g_testCount, 3, g_testCount, EXIT); // 断言测试计数器值为3
     g_testCount++;
-    rc = pthread_cond_signal(&g_pthdCondTest1);
+    rc = pthread_cond_signal(&g_pthdCondTest1); // 发送条件变量信号
     ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
 
-    ICUNIT_GOTO_EQUAL(g_testCount, 4, g_testCount, EXIT); // 4, here assert the result.
+    ICUNIT_GOTO_EQUAL(g_testCount, 4, g_testCount, EXIT); // 断言测试计数器值为4
     g_testCount++;
 
     rc = pthread_mutex_unlock(&g_pthreadMuxTest1);
     ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
-    LosTaskDelay(2); // 2, delay for Timing control.
+    LosTaskDelay(2); // 延迟2ms，用于时间控制
 
 EXIT:
-    pthread_exit(NULL);
+    pthread_exit(NULL); // 退出线程
+    return NULL;
 }
 
+// 测试用例函数
 static unsigned int TestCase(void)
 {
     int i;
     long t1 = 1;
     long t2 = 2;
     int rc;
-    pthread_t threads[3]; // 3, need 3 pthread for test.
+    pthread_t threads[3]; // 创建3个线程用于测试
     pthread_attr_t attr;
     const int loopNum = 2;
 
-    g_testCount = 0;
-    pthread_mutex_init(&g_pthreadMuxTest1, NULL);
-    pthread_cond_init(&g_pthdCondTest1, NULL);
+    g_testCount = 0; // 初始化测试计数器
+    pthread_mutex_init(&g_pthreadMuxTest1, NULL); // 初始化互斥锁
+    pthread_cond_init(&g_pthdCondTest1, NULL); // 初始化条件变量
 
+    // 创建线程
     rc = pthread_create(&threads[0], NULL, PthreadF01, (void *)t1);
     ICUNIT_ASSERT_EQUAL(rc, 0, rc);
 
     rc = pthread_create(&threads[1], NULL, PthreadF02, (void *)t2);
     ICUNIT_ASSERT_EQUAL(rc, 0, rc);
 
+    // 等待线程结束
     for (i = 0; i < loopNum; i++) {
         rc = pthread_join(threads[i], NULL);
         ICUNIT_ASSERT_EQUAL(rc, 0, rc);
     }
 
+    // 销毁线程属性对象
     rc = pthread_attr_destroy(&attr);
     ICUNIT_ASSERT_EQUAL(rc, 0, rc);
 
+    // 销毁互斥锁和条件变量
     rc = pthread_mutex_destroy(&g_pthreadMuxTest1);
     ICUNIT_ASSERT_EQUAL(rc, 0, rc);
     rc = pthread_cond_destroy(&g_pthdCondTest1);
@@ -118,7 +132,8 @@ static unsigned int TestCase(void)
     return 0;
 }
 
+// 测试函数注册
 void ItTestPthreadCond001(void)
 {
     TEST_ADD_CASE("IT_POSIX_PTHREAD_COND_001", TestCase, TEST_POSIX, TEST_PTHREAD, TEST_LEVEL2, TEST_FUNCTION);
-}
+}

kernel_liteos_a-master/testsuites/unittest/process/basic/pthread/smoke/pthread_cond_test_002.cpp

@@ -1,3 +1,4 @@
+// 版权声明
 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
  * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
@@ -28,83 +29,102 @@
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-#include "it_pthread_test.h"
+#include "it_pthread_test.h" // 包含测试框架头文件
 
-static pthread_mutex_t g_pthreadMuxTest1;
-static pthread_cond_t g_pthrdCondTest1;
-static unsigned int g_pthreadExit = 0;
+// 声明全局变量
+static pthread_mutex_t g_pthreadMuxTest1; // 全局互斥锁
+static pthread_cond_t g_pthrdCondTest1; // 全局条件变量
+static unsigned int g_pthreadExit = 0; // 用于控制线程退出的全局标志
 
+// 线程函数PthreadF01
 static void *PthreadF01(void *t)
 {
-    int rc;
-    unsigned int count = 0;
-    const int testLoop = 2000;
+    int rc; // 用于存储函数返回值
+    unsigned int count = 0; // 计数器
+    const int testLoop = 2000; // 循环次数
+
+    // 循环2000次
     while (count < testLoop) {
+        // 加锁
         rc = pthread_mutex_lock(&g_pthreadMuxTest1);
         ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
 
+        // 等待条件变量
         rc = pthread_cond_wait(&g_pthrdCondTest1, &g_pthreadMuxTest1);
         ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
 
+        // 解锁
         rc = pthread_mutex_unlock(&g_pthreadMuxTest1);
         ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
         count++;
     }
 
+    // 设置退出标志
     g_pthreadExit = 1;
 EXIT:
     return NULL;
 }
 
+// 线程函数PthreadF02
 static void *PthreadF02(void *t)
 {
     int i;
     int rc;
 
+    // 循环直到PthreadF01线程设置退出标志
     while (g_pthreadExit != 1) {
+        // 加锁
         rc = pthread_mutex_lock(&g_pthreadMuxTest1);
         ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
 
+        // 发送条件变量信号
         rc = pthread_cond_signal(&g_pthrdCondTest1);
         ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
 
+        // 解锁
         rc = pthread_mutex_unlock(&g_pthreadMuxTest1);
         ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
     }
 
 EXIT:
-    pthread_exit(NULL);
+    pthread_exit(NULL); // 退出线程
+    return NULL;
 }
 
+// 测试用例函数
 static unsigned int TestCase(void)
 {
     int i;
     long t1 = 1;
     long t2 = 2;
     int rc;
-    pthread_t threads[3];
+    pthread_t threads[3]; // 创建3个线程用于测试
     pthread_attr_t attr;
     const int loopNum = 2;
 
-    g_pthreadExit = 0;
-    g_testCount = 0;
-    pthread_mutex_init(&g_pthreadMuxTest1, NULL);
-    pthread_cond_init(&g_pthrdCondTest1, NULL);
+    g_pthreadExit = 0; // 初始化退出标志
+    g_testCount = 0; // 初始化测试计数器
+    pthread_mutex_init(&g_pthreadMuxTest1, NULL); // 初始化互斥锁
+    pthread_cond_init(&g_pthrdCondTest1, NULL); // 初始化条件变量
 
+    // 创建线程
     rc = pthread_create(&threads[0], NULL, PthreadF01, (void *)t1);
     ICUNIT_ASSERT_EQUAL(rc, 0, rc);
 
     rc = pthread_create(&threads[1], NULL, PthreadF02, (void *)t2);
     ICUNIT_ASSERT_EQUAL(rc, 0, rc);
 
+    // 等待线程结束
     for (i = 0; i < loopNum; i++) {
         rc = pthread_join(threads[i], NULL);
         ICUNIT_ASSERT_EQUAL(rc, 0, rc);
     }
 
+    // 销毁线程属性对象
     rc = pthread_attr_destroy(&attr);
     ICUNIT_ASSERT_EQUAL(rc, 0, rc);
 
+    // 销毁互斥锁和条件变量
     rc = pthread_mutex_destroy(&g_pthreadMuxTest1);
     ICUNIT_ASSERT_EQUAL(rc, 0, rc);
     rc = pthread_cond_destroy(&g_pthrdCondTest1);
@@ -113,7 +133,8 @@ static unsigned int TestCase(void)
     return 0;
 }
 
+// 测试函数注册
 void ItTestPthreadCond002(void)
 {
     TEST_ADD_CASE("IT_POSIX_PTHREAD_COND_002", TestCase, TEST_POSIX, TEST_PTHREAD, TEST_LEVEL2, TEST_FUNCTION);
-}
+}

kernel_liteos_a-master/testsuites/unittest/process/basic/pthread/smoke/pthread_cond_test_003.cpp

@@ -1,3 +1,4 @@
+// 版权声明
 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
  * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
@@ -28,124 +29,153 @@
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-#include "it_pthread_test.h"
+#include "it_pthread_test.h" // 包含测试框架头文件
 
-static pthread_cond_t g_pthread_cond;
-static pthread_mutex_t g_pthread_mutex;
-#define TEST_THREAD_COUNT 5
+// 声明全局变量
+static pthread_cond_t g_pthread_cond; // 全局条件变量
+static pthread_mutex_t g_pthread_mutex; // 全局互斥锁
+#define TEST_THREAD_COUNT 5 // 测试线程数量
+
+// 线程函数pthread_cond_func001
 static void *pthread_cond_func001(void *arg)
 {
-    int ret;
-    struct timespec ts;
+    int ret; // 用于存储函数返回值
+    struct timespec ts; // 时间结构体
 
-    g_testCount++;
+    g_testCount++; // 增加测试计数器
 
+    // 加锁
     ret = pthread_mutex_lock(&g_pthread_mutex);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 获取当前时间并设置超时时间为1分钟
     clock_gettime(CLOCK_REALTIME, &ts);
     ts.tv_sec += 60; /* 60: wait 1 minute */
 
+    // 等待条件变量，超时时间为1分钟
     ret = pthread_cond_timedwait(&g_pthread_cond, &g_pthread_mutex, &ts);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 解锁
     ret = pthread_mutex_unlock(&g_pthread_mutex);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
-    g_testCount++;
+    g_testCount++; // 增加测试计数器
 EXIT:
     return NULL;
 }
 
+// 线程函数pthread_f06
 static VOID *pthread_f06(void *argument)
 {
-    int policy;
-    int ret;
-    int i;
-    pthread_attr_t attr;
-    struct sched_param schedParam = { 0 };
-    pthread_t thread[TEST_THREAD_COUNT];
+    int policy; // 调度策略
+    int ret; // 用于存储函数返回值
+    int i; // 循环变量
+    pthread_attr_t attr; // 线程属性
+    struct sched_param schedParam = { 0 }; // 调度参数
+    pthread_t thread[TEST_THREAD_COUNT]; // 线程数组
 
-    g_testCount = 0;
+    g_testCount = 0; // 初始化测试计数器
 
+    // 初始化线程属性
     ret = pthread_attr_init(&attr);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 获取当前线程的调度参数
     ret = pthread_getschedparam(pthread_self(), &policy, &schedParam);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 设置新线程的优先级
     schedParam.sched_priority -= 1;
     ret = pthread_attr_setschedparam(&attr, &schedParam);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 设置线程的调度策略
     ret = pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 创建测试线程
     for (i = 0; i < TEST_THREAD_COUNT; i++) {
         ret = pthread_create(&thread[i], &attr, pthread_cond_func001, NULL);
         ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
     }
 
-    sleep(1);
+    sleep(1); // 等待1秒
 
+    // 检查测试计数器是否为5（5个线程）
     ICUNIT_GOTO_EQUAL(g_testCount, 5, g_testCount, EXIT); /* 5: Five threads */
 
+    // 加锁
     ret = pthread_mutex_lock(&g_pthread_mutex);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 发送条件变量广播信号
     ret = pthread_cond_broadcast(&g_pthread_cond);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 解锁
     ret = pthread_mutex_unlock(&g_pthread_mutex);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 等待测试线程结束
     for (i = 0; i < TEST_THREAD_COUNT; i++) {
         ret = pthread_join(thread[i], NULL);
         ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
     }
 
+    // 检查测试计数器是否为10（每个线程两次）
     ICUNIT_GOTO_EQUAL(g_testCount, 10, g_testCount, EXIT); /* 10: Twice per thread */
 EXIT:
     return NULL;
 }
 
+// 测试用例函数
 static int TestCase(void)
 {
-    int policy;
-    pthread_attr_t attr;
-    pthread_t newTh;
-    struct sched_param schedParam = { 0 };
-    int ret;
+    int policy; // 调度策略
+    pthread_attr_t attr; // 线程属性
+    pthread_t newTh; // 新线程
+    struct sched_param schedParam = { 0 }; // 调度参数
+    int ret; // 用于存储函数返回值
 
+    // 初始化互斥锁
     ret = pthread_mutex_init(&g_pthread_mutex, NULL);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 初始化条件变量
     ret = pthread_cond_init(&g_pthread_cond, NULL);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 初始化线程属性
     ret = pthread_attr_init(&attr);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 获取当前线程的调度参数
     ret = pthread_getschedparam(pthread_self(), &policy, &schedParam);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 设置新线程的优先级
     schedParam.sched_priority -= 1;
     ret = pthread_attr_setschedparam(&attr, &schedParam);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 设置线程的调度策略
     ret = pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 创建新线程
     ret = pthread_create(&newTh, &attr, pthread_f06, NULL);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 等待新线程结束
     ret = pthread_join(newTh, NULL);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
     return 0;
 }
 
+// 测试函数注册
 void ItTestPthreadCond003(void)
 {
     TEST_ADD_CASE("IT_POSIX_PTHREAD_COND_003", TestCase, TEST_POSIX, TEST_PTHREAD, TEST_LEVEL2, TEST_FUNCTION);
-}
+}

kernel_liteos_a-master/testsuites/unittest/process/basic/pthread/smoke/pthread_cond_test_004.cpp

@@ -1,3 +1,4 @@
+// 版权声明
 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
  * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
@@ -28,116 +29,142 @@
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-#include "it_pthread_test.h"
-static pthread_cond_t g_pthread_cond;
-static pthread_mutex_t g_pthread_mutex;
-#define TEST_THREAD_COUNT 5
+#include "it_pthread_test.h" // 包含测试框架头文件
 
+// 声明全局变量
+static pthread_cond_t g_pthread_cond; // 全局条件变量
+static pthread_mutex_t g_pthread_mutex; // 全局互斥锁
+#define TEST_THREAD_COUNT 5 // 测试线程数量
+
+// 线程函数pthread_cond_func002
 static void *pthread_cond_func002(void *arg)
 {
-    int ret;
-    struct timespec ts;
+    int ret; // 用于存储函数返回值
+    struct timespec ts; // 时间结构体
 
-    g_testCount++;
+    g_testCount++; // 增加测试计数器
 
+    // 加锁
     ret = pthread_mutex_lock(&g_pthread_mutex);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 获取当前时间并设置超时时间为2秒
     clock_gettime(CLOCK_REALTIME, &ts);
     ts.tv_sec += 2; /* 2: wait 2 seconds */
 
+    // 等待条件变量，超时时间为2秒
     ret = pthread_cond_timedwait(&g_pthread_cond, &g_pthread_mutex, &ts);
-    ICUNIT_GOTO_EQUAL(ret, ETIMEDOUT, ret, EXIT);
+    ICUNIT_GOTO_EQUAL(ret, ETIMEDOUT, ret, EXIT); // 期望超时返回ETIMEDOUT
 
+    // 解锁
     ret = pthread_mutex_unlock(&g_pthread_mutex);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
-    g_testCount++;
+    g_testCount++; // 增加测试计数器
 EXIT:
     return NULL;
 }
 
+// 线程函数pthread_f07
 static VOID *pthread_f07(void *argument)
 {
-    int policy;
-    int ret;
-    int i;
-    pthread_attr_t attr;
-    struct sched_param schedParam = { 0 };
-    pthread_t thread[TEST_THREAD_COUNT];
+    int policy; // 调度策略
+    int ret; // 用于存储函数返回值
+    int i; // 循环变量
+    pthread_attr_t attr; // 线程属性
+    struct sched_param schedParam = { 0 }; // 调度参数
+    pthread_t thread[TEST_THREAD_COUNT]; // 线程数组
 
-    g_testCount = 0;
+    g_testCount = 0; // 初始化测试计数器
 
+    // 初始化线程属性
     ret = pthread_attr_init(&attr);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 获取当前线程的调度参数
     ret = pthread_getschedparam(pthread_self(), &policy, &schedParam);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 设置新线程的优先级
     schedParam.sched_priority -= 1;
     ret = pthread_attr_setschedparam(&attr, &schedParam);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 设置线程的调度策略
     ret = pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED);
     ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
 
+    // 创建测试线程
     for (i = 0; i < TEST_THREAD_COUNT; i++) {
         ret = pthread_create(&thread[i], &attr, pthread_cond_func002, NULL);
         ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
     }
 
-    sleep(1);
+    sleep(1); // 等待1秒，确保所有线程都有机会执行并超时
 
+    // 检查测试计数器是否为5（5个线程）
     ICUNIT_GOTO_EQUAL(g_testCount, 5, g_testCount, EXIT); /* 5: Five threads */
 
+    // 等待测试线程结束
     for (i = 0; i < TEST_THREAD_COUNT; i++) {
         ret = pthread_join(thread[i], NULL);
         ICUNIT_GOTO_EQUAL(ret, 0, ret, EXIT);
     }
 
+    // 检查测试计数器是否为10（每个线程两次）
     ICUNIT_GOTO_EQUAL(g_testCount, 10, g_testCount, EXIT); /* 10: Twice per thread */
 
 EXIT:
     return NULL;
 }
 
+// 测试用例函数
 static int TestCase(void)
 {
-    int policy;
-    pthread_attr_t attr;
-    pthread_t newTh;
-    struct sched_param schedParam = { 0 };
-    int ret;
+    int policy; // 调度策略
+    pthread_attr_t attr; // 线程属性
+    pthread_t newTh; // 新线程
+    struct sched_param schedParam = { 0 }; // 调度参数
+    int ret; // 用于存储函数返回值
 
+    // 初始化互斥锁
     ret = pthread_mutex_init(&g_pthread_mutex, NULL);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 初始化条件变量
     ret = pthread_cond_init(&g_pthread_cond, NULL);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 初始化线程属性
     ret = pthread_attr_init(&attr);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 获取当前线程的调度参数
     ret = pthread_getschedparam(pthread_self(), &policy, &schedParam);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 设置新线程的优先级
     schedParam.sched_priority -= 1;
     ret = pthread_attr_setschedparam(&attr, &schedParam);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 设置线程的调度策略
     ret = pthread_attr_setinheritsched(&attr, PTHREAD_EXPLICIT_SCHED);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 创建新线程
     ret = pthread_create(&newTh, &attr, pthread_f07, NULL);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
+    // 等待新线程结束
     ret = pthread_join(newTh, NULL);
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
     return 0;
 }
 
+// 测试函数注册
 void ItTestPthreadCond004(void)
 {
     TEST_ADD_CASE("IT_POSIX_PTHREAD_COND_004", TestCase, TEST_POSIX, TEST_PTHREAD, TEST_LEVEL2, TEST_FUNCTION);
-}
+}

kernel_liteos_a-master/testsuites/unittest/process/basic/pthread/smoke/pthread_once_test_001.cpp

@@ -1,3 +1,4 @@
+// 版权声明
 /*
  * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
  * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
@@ -28,83 +29,94 @@
  * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
-#include "it_pthread_test.h"
+#include "it_pthread_test.h" // 包含测试框架头文件
 
-static int g_number = 0;
-static int g_okStatus = 777; // 777, a special number indicate the status is ok.
-static pthread_once_t g_onceCtrl = PTHREAD_ONCE_INIT;
+// 定义全局变量
+static int g_number = 0; // 用于计数的全局变量
+static int g_okStatus = 777; // 777, 一个特殊的数字，表示状态正常
+static pthread_once_t g_onceCtrl = PTHREAD_ONCE_INIT; // 用于控制只执行一次的初始化
 
+// 初始化例程，只执行一次的函数
 static void InitRoutine(void)
 {
-    g_number++;
+    g_number++; // 每次调用时增加计数器
 }
 
+// 线程函数Threadfunc
 static void *Threadfunc(void *parm)
 {
-    int err;
-    err = pthread_once(&g_onceCtrl, InitRoutine);
-    ICUNIT_GOTO_EQUAL(err, 0, err, EXIT);
-    return reinterpret_cast<void *>(g_okStatus);
+    int err; // 用于存储函数返回值
+    err = pthread_once(&g_onceCtrl, InitRoutine); // 确保InitRoutine只执行一次
+    ICUNIT_GOTO_EQUAL(err, 0, err, EXIT); // 断言返回值为0
+    return reinterpret_cast<void *>(g_okStatus); // 返回状态值
 EXIT:
-    return NULL;
+    return NULL; // 出错时返回NULL
 }
 
+// 线程函数ThreadFuncTest
 static void *ThreadFuncTest(void *arg)
 {
-    pthread_t thread[3];
-    int rc = 0;
-    int i = 3;
-    void *status;
-    const int threadsNum = 3;
+    pthread_t thread[3]; // 线程数组
+    int rc = 0; // 返回码
+    int i = 3; // 循环变量
+    void *status; // 线程返回状态
+    const int threadsNum = 3; // 线程数量
 
-    g_number = 0;
+    g_number = 0; // 初始化计数器
 
+    // 创建3个线程
     for (i = 0; i < threadsNum; ++i) {
         rc = pthread_create(&thread[i], NULL, Threadfunc, NULL);
         ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
     }
 
+    // 等待3个线程结束，并检查返回状态
     for (i = 0; i < threadsNum; ++i) {
         rc = pthread_join(thread[i], &status);
         ICUNIT_GOTO_EQUAL(rc, 0, rc, EXIT);
         ICUNIT_GOTO_EQUAL((unsigned int)status, (unsigned int)g_okStatus, status, EXIT);
     }
 
+    // 断言InitRoutine只执行了一次
     ICUNIT_GOTO_EQUAL(g_number, 1, g_number, EXIT);
 
 EXIT:
-    return NULL;
+    return NULL; // 出错时返回NULL
 }
 
+// 测试用例函数
 static int Testcase(void)
 {
-    int ret;
-    pthread_t newPthread;
-    int curThreadPri, curThreadPolicy;
-    pthread_attr_t a = { 0 };
-    struct sched_param param = { 0 };
+    int ret; // 返回码
+    pthread_t newPthread; // 新线程
+    int curThreadPri, curThreadPolicy; // 当前线程的优先级和策略
+    pthread_attr_t a = { 0 }; // 线程属性
+    struct sched_param param = { 0 }; // 调度参数
 
-    g_onceCtrl = PTHREAD_ONCE_INIT;
+    g_onceCtrl = PTHREAD_ONCE_INIT; // 重置控制变量
 
+    // 获取当前线程的调度参数
     ret = pthread_getschedparam(pthread_self(), &curThreadPolicy, &param);
     ICUNIT_ASSERT_EQUAL(ret, 0, -ret);
 
-    curThreadPri = param.sched_priority;
+    curThreadPri = param.sched_priority; // 获取当前优先级
 
+    // 初始化线程属性
     ret = pthread_attr_init(&a);
-    pthread_attr_setinheritsched(&a, PTHREAD_EXPLICIT_SCHED);
-    param.sched_priority = curThreadPri + 2; // 2, adjust the priority.
-    pthread_attr_setschedparam(&a, &param);
-    ret = pthread_create(&newPthread, &a, ThreadFuncTest, 0);
+    pthread_attr_setinheritsched(&a, PTHREAD_EXPLICIT_SCHED); // 设置继承调度策略
+    param.sched_priority = curThreadPri + 2; // 调整优先级
+    pthread_attr_setschedparam(&a, &param); // 设置调度参数
+    ret = pthread_create(&newPthread, &a, ThreadFuncTest, 0); // 创建新线程
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
-    ret = pthread_join(newPthread, NULL);
+    ret = pthread_join(newPthread, NULL); // 等待新线程结束
     ICUNIT_ASSERT_EQUAL(ret, 0, ret);
 
-    return 0;
+    return 0; // 返回成功
 }
 
+// 测试函数注册
 void ItTestPthreadOnce001(void)
 {
     TEST_ADD_CASE("IT_PTHREAD_ONCE_001", Testcase, TEST_POSIX, TEST_MEM, TEST_LEVEL0, TEST_FUNCTION);
-}
+}