diff --git a/Makefile b/Makefile
index d1a6990..fc7b587 100644
--- a/Makefile
+++ b/Makefile
@@ -25,6 +25,11 @@ TEST_CLIENT = $(BUILD_DIR)/test_client
 TEST_CLIENT_SRC = $(TESTS_DIR)/test_client.c
 TEST_CLIENT_DEPS = $(BUILD_DIR)/client.o $(BUILD_DIR)/debug.o
 
+# 并发测试客户端
+TEST_CONCURRENT_CLIENT = $(BUILD_DIR)/test_concurrent_client
+TEST_CONCURRENT_CLIENT_SRC = $(TESTS_DIR)/test_concurrent_client.c
+TEST_CONCURRENT_CLIENT_DEPS = $(BUILD_DIR)/client.o $(BUILD_DIR)/debug.o
+
 # 如果需要开启 debug，只需执行 make DEBUG=1
 ifeq ($(DEBUG),1)
 	CFLAGS += -DDEBUG -g
@@ -40,12 +45,14 @@ ifeq ($(NO_CONFIG_CHECK),1)
 	CFLAGS += -DNO_CONFIG_CHECK
 endif
 
-.PHONY: all clean debug hook rebuild pre_build test_client
+.PHONY: all clean debug hook rebuild pre_build test_client test_concurrent_client
 
 all: pre_build $(TARGET) $(HOOK_TARGET)
 
 test_client: pre_build $(TEST_CLIENT)
 
+test_concurrent_client: pre_build $(TEST_CONCURRENT_CLIENT)
+
 pre_build:
 ifeq ($(DEBUG),1)
 	@echo "Building with debug flags..."
@@ -77,6 +84,10 @@ $(TEST_CLIENT): $(TEST_CLIENT_SRC) $(TEST_CLIENT_DEPS)
 	@mkdir -p $(BUILD_DIR)
 	$(CC) -Wall -Wextra -o $@ $(TEST_CLIENT_SRC) $(TEST_CLIENT_DEPS)
 
+$(TEST_CONCURRENT_CLIENT): $(TEST_CONCURRENT_CLIENT_SRC) $(TEST_CONCURRENT_CLIENT_DEPS)
+	@mkdir -p $(BUILD_DIR)
+	$(CC) -Wall -Wextra -pthread -o $@ $(TEST_CONCURRENT_CLIENT_SRC) $(TEST_CONCURRENT_CLIENT_DEPS)
+
 clean:
 	rm -rf $(BUILD_DIR)
 
diff --git a/src/client.c b/src/client.c
index 7be8aa7..62b2ca3 100644
--- a/src/client.c
+++ b/src/client.c
@@ -1,5 +1,4 @@
 #include "client.h"
-#include "debug.h"
 
 #include <errno.h>
 #include <limits.h>
@@ -9,10 +8,12 @@
 #include <string.h>
 #include <unistd.h>
 
+#include "debug.h"
+
 #define BUFFER_SIZE 4096
 
 // 读取完整消息
-ssize_t readMessage(int sock, char *buffer, size_t maxSize) {
+ssize_t readMessage(int sock, char* buffer, size_t maxSize) {
     uint32_t messageLen;
     // 先读取消息长度
     if (read(sock, &messageLen, sizeof(messageLen)) != sizeof(messageLen)) {
@@ -35,8 +36,8 @@ ssize_t readMessage(int sock, char *buffer, size_t maxSize) {
     return messageLen;
 }
 
-int send_exec_params(const char *filename, char *const argv[],
-                     char *const envp[], const char *logPath) {
+int seeking_solutions(const char* filename, char* const argv[],
+                      char* const envp[], const char* logPath, int* output_fd) {
     char abs_path[PATH_MAX];
     char pwd[PATH_MAX];
 
@@ -90,7 +91,7 @@ int send_exec_params(const char *filename, char *const argv[],
     strncpy(addr.sun_path, SOCKET_PATH, sizeof(addr.sun_path) - 1);
     addr.sun_path[sizeof(addr.sun_path) - 1] = '\0';
 
-    if (connect(sock, (struct sockaddr *)&addr, sizeof(addr)) == -1) {
+    if (connect(sock, (struct sockaddr*)&addr, sizeof(addr)) == -1) {
         DEBUG_LOG("connect error: %s\n", strerror(errno));
         close(sock);
         return -1;
@@ -146,8 +147,14 @@ int send_exec_params(const char *filename, char *const argv[],
 
         strncpy(display_buffer, buffer, BUFFER_SIZE - 1);
         display_buffer[BUFFER_SIZE - 1] = '\0';
-        printf("%s", display_buffer);
-        fflush(stdout);
+
+        // 使用指定的输出描述符,如果为NULL则使用stdout
+        write(*output_fd, display_buffer, strlen(display_buffer));
+
+        // 如果是标准输出,flush
+        if (*output_fd == STDOUT_FILENO) {
+            fflush(stdout);
+        }
     }
 
     close(sock);
diff --git a/src/client.h b/src/client.h
index be6cab8..8472b98 100644
--- a/src/client.h
+++ b/src/client.h
@@ -16,6 +16,6 @@
 #define MAX_BUF_SIZE 4096
 
 // 函数声明
-int send_exec_params(const char *filename, char *const argv[], char *const envp[], const char *logPath);
+int seeking_solutions(const char *filename, char *const argv[], char *const envp[], const char *logPath, int *output_fd);
 
 #endif // EXEC_SOCKET_H
diff --git a/src/exec_hook.h b/src/exec_hook.h
index a154769..e13869b 100644
--- a/src/exec_hook.h
+++ b/src/exec_hook.h
@@ -22,18 +22,17 @@
 
 #define COMMAND_NOT_FOUND "/usr/lib/command-not-found"
 
-#ifdef DEBUG  // 如果是debug模式，在本地目录生成log，方便debug
+// #ifdef DEBUG  // 如果是debug模式，在本地目录生成log，方便debug
 
-#define LOG_FILE "./logs/execve.log"
-#define LOG_OUT_FILE "./logs/execve_out.log"
+// #define LOG_FILE "./logs/execve.log"
+// #define LOG_OUT_FILE "./logs/execve_out.log"
 
-#else
+// #else
 
-#define CONFIG_FILE ""
-#define LOG_FILE "/etc/exec_hook/logs/execve.log"
-#define LOG_OUT_FILE "/etc/exec_hook/logs/execve_out.log"
-
-#endif
+#define LOG_FILE "/var/log/bash-smart/execve.log"
+#define LOG_OUT_FILE "/var/log/bash-smart/execve_out.log"
+    
+// #endif
 
 #define MAX_PATH_LEN 256
 
diff --git a/src/execve_interceptor.c b/src/execve_interceptor.c
index 180de05..15d14ae 100644
--- a/src/execve_interceptor.c
+++ b/src/execve_interceptor.c
@@ -10,6 +10,7 @@
 #include "config.h"
 #include "debug.h"
 #include "init_cleanup.h"
+#include "terminal_utils.h"
 #include "logging.h"
 #include "pty_dup.h"
 #include "rules.h"
@@ -238,10 +239,29 @@ int enhance_execve(const char *filename, char *const argv[],
         exit(1);
     }
 
-    write_log(filename, argv);
+    // 检查日志权限，如果没有权限则跳过日志记录和PTY设置
+    int log_ret = write_log(filename, argv);
+    if (log_ret != 0) {
+        DEBUG_LOG("write_log failed, no permission for log directory");
+#ifdef HOOK
+        return orig_execve(filename, argv, envp);
+#else
+        return execve(filename, argv, envp);
+#endif
+    }
 
     // Duplicate stdout and stderr to the log file
-    dupIO(filename, argv, envp);
+    int ret = dupIO(filename, argv, envp);
+    if (ret != 0) {
+        DEBUG_LOG("dupIO failed with code: %d", ret);
+        restore_terminal();
+#ifdef HOOK
+        return orig_execve(filename, argv, envp);
+#else
+        return execve(filename, argv, envp);
+        // return 1;
+#endif
+    }
 
 #ifdef HOOK
 
diff --git a/src/init_cleanup.c b/src/init_cleanup.c
index 7e22821..5c177d4 100644
--- a/src/init_cleanup.c
+++ b/src/init_cleanup.c
@@ -1,9 +1,11 @@
 #include "init_cleanup.h"
 #include "exec_hook.h"
 #include "debug.h"
+#include "pty_dup.h"
 #include <stdio.h>
 #include <unistd.h>
 #include <sys/shm.h>
+#include <termios.h>
 
 // // Constructor, executed when the library is loaded
 // __attribute__((constructor)) static void initialize() {
@@ -15,7 +17,7 @@
 // }
 
 // Destructor, executed when the library is unloaded
-__attribute__((destructor)) void cleanup_shared_memory() {
+__attribute__((destructor)) void cleanup() {
 	DEBUG_LOG("execve_intercept library unloaded.");
 	// Log output paths
 	DEBUG_LOG("Log file: %s", LOG_FILE);
@@ -29,10 +31,26 @@ __attribute__((destructor)) void cleanup_shared_memory() {
 	// 	}
 	// 	shared_config = NULL;
 	// }
-#ifdef DEBUG
-	print_stacktrace();
-#endif
+// #ifdef DEBUG
+// 	print_stacktrace();
+// #endif
 	// Note: We don't delete the shared memory segment here, as it might be
 	// used by other processes. A separate mechanism would be needed to manage
 	// the lifecycle of the shared memory if deletion is required.
+
+	    // 获取stderr日志文件名
+    const char* stdout_log = GET_LOG_FILE(child_pid, 1);
+    const char* stderr_log = GET_LOG_FILE(child_pid, 0);
+
+	// 如果存在日志文件且有写权限，则删除
+	if (access(stdout_log, F_OK) != -1 && access(stdout_log, W_OK) != -1) {
+		if (unlink(stdout_log) == 0) {
+			DEBUG_LOG("Stdout log file removed: %s", stdout_log);
+		}
+	}
+	if (access(stderr_log, F_OK) != -1 && access(stderr_log, W_OK) != -1) {
+		if (unlink(stderr_log) == 0) {
+			DEBUG_LOG("Stderr log file removed: %s", stderr_log);
+		}
+	}
 }
diff --git a/src/init_cleanup.h b/src/init_cleanup.h
index 0dd066c..5b77a19 100644
--- a/src/init_cleanup.h
+++ b/src/init_cleanup.h
@@ -2,6 +2,6 @@
 #define INIT_CLEANUP_H
 
 // void initialize();
-__attribute__((destructor)) void cleanup_shared_memory();
+__attribute__((destructor)) void cleanup();
 
 #endif // INIT_CLEANUP_H
\ No newline at end of file
diff --git a/src/logging.c b/src/logging.c
index b6a1f5d..ae4ad35 100644
--- a/src/logging.c
+++ b/src/logging.c
@@ -17,7 +17,7 @@
 #include "exec_hook.h"
 
 // Write log
-void write_log(const char *filename, char *const argv[]) {
+int write_log(const char *filename, char *const argv[]) {
     DEBUG_LOG("Writing exec log for command: %s", filename);
     time_t now;
     time(&now);
@@ -27,39 +27,34 @@ void write_log(const char *filename, char *const argv[]) {
         strdup(LOG_FILE);  // Duplicate string as dirname might modify it
     if (!log_file_path) {
         perror("strdup failed");
-        return;
+        return -1;
     }
     char *log_dir = dirname(log_file_path);
     if (!log_dir) {
         perror("dirname failed");
         free(log_file_path);
-        return;
+        return -1;
     }
 
     // Check if the directory exists and is writable
-    if (access(log_dir, W_OK) != 0) {
-        if (errno == ENOENT) {
-            DEBUG_LOG("Log directory '%s' does not exist, creating it...",
-                      log_dir);
-            // Create the directory with appropriate permissions (e.g., 0755)
-            if (mkdir(log_dir, 0755) == -1) {
-                perror("mkdir failed");
-                free(log_file_path);
-                return;
-            }
-            DEBUG_LOG("Log directory '%s' created successfully.", log_dir);
-        } else {
-            perror("access failed for log directory");
-            free(log_file_path);
-            return;
-        }
+    if (access(log_dir, F_OK) != 0) {
+        DEBUG_LOG("Log directory '%s' does not exist", log_dir);
+        free(log_file_path);
+        return -1;
     }
+    
+    if (access(log_dir, W_OK) != 0) {
+        DEBUG_LOG("Log directory '%s' is not writable", log_dir);
+        free(log_file_path);
+        return -1;
+    }
+    
     free(log_file_path);  // Free the duplicated string
 
     FILE *log = fopen(LOG_FILE, "a");
     if (!log) {
         perror("fopen failed for log file");
-        return;
+        return -1;
     }
 
     fprintf(log, "[%s] Command: %s\n", ctime(&now), filename);
@@ -69,6 +64,7 @@ void write_log(const char *filename, char *const argv[]) {
     }
 
     fclose(log);
+    return 0;
 }
 
 // // 全局变量记录子进程 PID
diff --git a/src/logging.h b/src/logging.h
index 7daf1b0..f0bc608 100644
--- a/src/logging.h
+++ b/src/logging.h
@@ -1,7 +1,7 @@
 #ifndef LOGGING_H
 #define LOGGING_H
 
-void write_log(const char *filename, char *const argv[]);
+int write_log(const char *filename, char *const argv[]);
 void duplicate_output_to_log();
 
 #endif // LOGGING_H
\ No newline at end of file
diff --git a/src/pty_dup.c b/src/pty_dup.c
index 59ea1ea..e5d5968 100644
--- a/src/pty_dup.c
+++ b/src/pty_dup.c
@@ -8,7 +8,7 @@
 #include "signal_handlers.h"
 #include "terminal_utils.h"
 
-FILE *log_file = NULL;
+FILE* log_file = NULL;
 pid_t child_pid;
 int child_status = -1;
 static int pty_master_fd = -1;
@@ -66,7 +66,7 @@ void handle_sigwinch(int sig) {
 //     exit(1);
 // }
 
-void dupIO(const char *filename, char *const argv[], char *const envp[]) {
+int dupIO(const char* filename, char* const argv[], char* const envp[]) {
     pid_t pid;
     int master;
     int stderr_pipe[2];
@@ -79,7 +79,7 @@ void dupIO(const char *filename, char *const argv[], char *const envp[]) {
     // 创建stderr的pipe
     if (pipe(stderr_pipe) < 0) {
         perror("pipe failed");
-        exit(1);
+        return -1;
     }
 
     signal(SIGINT, handle_sigint);
@@ -88,7 +88,9 @@ void dupIO(const char *filename, char *const argv[], char *const envp[]) {
 
     if (ioctl(STDIN_FILENO, TIOCGWINSZ, &win) < 0) {
         perror("ioctl TIOCGWINSZ failed");
-        exit(1);
+        close(stderr_pipe[0]);
+        close(stderr_pipe[1]);
+        return -1;
     }
 
     pid = forkpty(&master, NULL, &term, &win);
@@ -101,7 +103,9 @@ void dupIO(const char *filename, char *const argv[], char *const envp[]) {
 
     if (pid < 0) {
         perror("forkpty failed");
-        exit(1);
+        close(stderr_pipe[0]);
+        close(stderr_pipe[1]);
+        return -1;
     } else if (pid == 0) {
         // 子进程
         DEBUG_LOG("Child process ready.");
@@ -113,11 +117,12 @@ void dupIO(const char *filename, char *const argv[], char *const envp[]) {
         // 重定向stderr到pipe写端
         if (dup2(stderr_pipe[1], STDERR_FILENO) < 0) {
             perror("dup2 failed");
-            exit(1);
+            close(stderr_pipe[1]);
+            return -1;
         }
         close(stderr_pipe[1]);
 
-        return;
+        return 0;
     }
 
     // 父进程
@@ -128,12 +133,22 @@ void dupIO(const char *filename, char *const argv[], char *const envp[]) {
     fcntl(stderr_pipe[0], F_SETFL, O_NONBLOCK);
 
     // 获取stderr日志文件名
-    const char *stdout_log = GET_LOG_FILE(child_pid, 1);
-    const char *stderr_log = GET_LOG_FILE(child_pid, 0);
+    const char* stdout_log = GET_LOG_FILE(child_pid, 1);
+    const char* stderr_log = GET_LOG_FILE(child_pid, 0);
     DEBUG_LOG("Ready to handle IO");
-    handle_io(master, stderr_pipe[0], stdout_log,
+    int ret = handle_io(master, stderr_pipe[0], stdout_log,
               stderr_log);  // 需要修改handle_io函数签名，传入stderr_pipe读端
+    if (ret != 0) {
+        DEBUG_LOG("handle_io returned error: %d", ret);
+        return ret;
+    }
+    
+    // 恢复终端设置
+    restore_terminal();
 
+    int stdout_fd = STDOUT_FILENO;
+    int exit_code = 1;
+    
     // 打印子进程状态
     if (child_status != -1) {
         if (WIFEXITED(child_status)) {
@@ -142,20 +157,20 @@ void dupIO(const char *filename, char *const argv[], char *const envp[]) {
                       code);
             if (code != 0) {
                 int success =
-                    send_exec_params(filename, argv, envp, stderr_log);
+                    seeking_solutions(filename, argv, envp, stderr_log, &stdout_fd);
                 if (success != 0) {
                     fprintf(stderr, "向服务器请求解决方案失败! \n");
                 }
             }
-            exit(code);
+            exit_code = code;
         } else if (WIFSIGNALED(child_status)) {
             DEBUG_LOG("\nChild process terminated abnormally by signal %d\n",
                       WTERMSIG(child_status));
-            int success = send_exec_params(filename, argv, envp, stderr_log);
+            int success = seeking_solutions(filename, argv, envp, stderr_log, &stdout_fd);
             if (success != 0) {
                 fprintf(stderr, "向服务器请求解决方案失败! \n");
             }
-            exit(128 + WTERMSIG(child_status));
+            exit_code = 128 + WTERMSIG(child_status);
         } else if (WIFSTOPPED(child_status)) {
             DEBUG_LOG("\nChild process stopped by signal %d\n",
                       WSTOPSIG(child_status));
@@ -165,5 +180,5 @@ void dupIO(const char *filename, char *const argv[], char *const envp[]) {
     close(master);
     close(stderr_pipe[0]);
 
-    exit(1);
+    exit(exit_code);
 }
\ No newline at end of file
diff --git a/src/pty_dup.h b/src/pty_dup.h
index df1f950..137613d 100644
--- a/src/pty_dup.h
+++ b/src/pty_dup.h
@@ -17,11 +17,11 @@
 
 #define BUFFER_SIZE 1024
 
-extern FILE *log_file;
+extern FILE* log_file;
 extern pid_t child_pid;
 extern int child_status;
 
-void dupIO(const char *filename, char *const argv[], char *const envp[]);
+int dupIO(const char* filename, char* const argv[], char* const envp[]);
 void print_child_status(void);
 
 #endif
diff --git a/src/terminal_utils.c b/src/terminal_utils.c
index b89251b..54f08c3 100644
--- a/src/terminal_utils.c
+++ b/src/terminal_utils.c
@@ -3,6 +3,12 @@
 #include "config.h"
 #include "debug.h"
 #include "pty_dup.h"
+#include <libgen.h>
+#include <sys/stat.h>
+
+// 全局变量保存原始终端设置
+struct termios orig_term;
+int term_saved = 0;
 
 void setup_termios(struct termios *term) {
     // 初始化终端设置
@@ -48,15 +54,16 @@ void setup_termios(struct termios *term) {
     cfsetospeed(term, B38400);
 }
 
-void handle_io(int master_fd, int stderr_fd, const char *stdout_log,
+int handle_io(int master_fd, int stderr_fd, const char *stdout_log,
                const char *stderr_log) {
-    struct termios orig_term, raw_term;
+    struct termios raw_term;
     char buffer[BUFFER_SIZE];
     struct pollfd fds[3];  // 增加一个pollfd用于stderr
 
     // 保存原始终端设置
     DEBUG_LOG("Saving original config.");
     tcgetattr(STDIN_FILENO, &orig_term);
+    term_saved = 1;
 
     // 设置原始模式
     DEBUG_LOG("Setting origin mode.");
@@ -77,13 +84,30 @@ void handle_io(int master_fd, int stderr_fd, const char *stdout_log,
     fds[2].fd = stderr_fd;  // 新增stderr的fd
     fds[2].events = POLLIN;
 
-    // 打开两个日志文件
+    // 检查日志目录权限，如果没有权限就直接返回
+    char *stdout_log_copy = strdup(stdout_log);
+    if (!stdout_log_copy) {
+        return -1;
+    }
+    
+    char *log_dir = dirname(stdout_log_copy);
+    
+    // 检查目录是否存在以及是否有写权限
+    if (access(log_dir, F_OK) != 0 || access(log_dir, W_OK) != 0) {
+        free(stdout_log_copy);
+        return -1;
+    }
+    
+    free(stdout_log_copy);
+    
+    // 打开日志文件
     int stdout_log_fd = open(stdout_log, O_WRONLY | O_CREAT | O_APPEND, 0644);
     int stderr_log_fd = open(stderr_log, O_WRONLY | O_CREAT | O_APPEND, 0644);
-
+    
     if (stdout_log_fd == -1 || stderr_log_fd == -1) {
-        perror("Failed to open log file");
-        return;
+        if (stdout_log_fd >= 0) close(stdout_log_fd);
+        if (stderr_log_fd >= 0) close(stderr_log_fd);
+        return -1;
     }
 
     while (1) {
@@ -209,7 +233,14 @@ void handle_io(int master_fd, int stderr_fd, const char *stdout_log,
 
     // 在恢复终端设置之前清除可能的未完成输出
     tcflush(STDIN_FILENO, TCIFLUSH);
-
-    // 恢复终端设置
-    tcsetattr(STDIN_FILENO, TCSANOW, &orig_term);
+    
+    return 0;
 }
+
+void restore_terminal() {
+    if (term_saved) {
+        DEBUG_LOG("Restoring terminal settings.");
+        tcsetattr(STDIN_FILENO, TCSANOW, &orig_term);
+        term_saved = 0;
+    }
+}
\ No newline at end of file
diff --git a/src/terminal_utils.h b/src/terminal_utils.h
index 74d02d1..39f233a 100644
--- a/src/terminal_utils.h
+++ b/src/terminal_utils.h
@@ -3,8 +3,10 @@
 #ifndef TERMINAL_UTILS_H
 #define TERMINAL_UTILS_H
 
-void setup_termios(struct termios *term);
-void handle_io(int master_fd, int stderr_fd, const char *stdout_log,
-    const char *stderr_log);
+void setup_termios(struct termios* term);
+int handle_io(int master_fd, int stderr_fd, const char* stdout_log,
+               const char* stderr_log);
+
+void restore_terminal();
 
 #endif
diff --git a/tests/makefault b/tests/makefault
new file mode 100755
index 0000000..67d9f85
Binary files /dev/null and b/tests/makefault differ
diff --git a/tests/test_client.c b/tests/test_client.c
index a0cc64e..35a540e 100644
--- a/tests/test_client.c
+++ b/tests/test_client.c
@@ -55,7 +55,7 @@ int main(int argc, char *argv[]) {
     printf("--- 服务端响应 ---\n");
 
     // 调用客户端函数
-    int result = send_exec_params(filename, test_argv, test_envp, log_path);
+    int result = seeking_solutions(filename, test_argv, test_envp, log_path, &STDOUT_FILENO);
 
     printf("\n--- 响应结束 ---\n");
     
diff --git a/tests/test_concurrent_client.c b/tests/test_concurrent_client.c
new file mode 100644
index 0000000..676c3e1
--- /dev/null
+++ b/tests/test_concurrent_client.c
@@ -0,0 +1,210 @@
+#include "../src/client.h"
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <pthread.h>
+#include <unistd.h>
+#include <time.h>
+
+/**
+ * 并发测试客户端 - 用于测试多个客户端并发访问服务端
+ * 
+ * 用法:
+ *   ./test_concurrent_client <log_file_path> <线程数> [延迟ms]
+ * 
+ * 示例:
+ *   ./test_concurrent_client /tmp/test_error.log 10      # 10个并发线程
+ *   ./test_concurrent_client /tmp/test_error.log 20 100  # 20个线程,每个延迟100ms
+ */
+
+// 线程参数结构
+typedef struct {
+    int thread_id;
+    const char *log_path;
+    int delay_ms;  // 启动前延迟(毫秒)
+    int success;   // 执行结果
+} thread_args_t;
+
+// 统计信息
+typedef struct {
+    int total;
+    int success;
+    int failed;
+    pthread_mutex_t mutex;
+} stats_t;
+
+static stats_t g_stats = {0, 0, 0, PTHREAD_MUTEX_INITIALIZER};
+
+/**
+ * 工作线程函数
+ */
+void *worker_thread(void *arg) {
+    thread_args_t *args = (thread_args_t *)arg;
+    
+    // 如果设置了延迟,先等待
+    if (args->delay_ms > 0) {
+        usleep(args->delay_ms * 1000);
+    }
+    
+    // 模拟不同的命令和参数
+    char *commands[] = {
+        "/usr/bin/python3",
+        "/usr/bin/ls",
+        "/bin/bash",
+        "/usr/bin/grep"
+    };
+    
+    const char *filename = commands[args->thread_id % 4];
+    
+    // 构造测试参数
+    char arg1[64], arg2[64];
+    snprintf(arg1, sizeof(arg1), "arg1_thread_%d", args->thread_id);
+    snprintf(arg2, sizeof(arg2), "arg2_thread_%d", args->thread_id);
+    
+    char *test_argv[] = {
+        "command",
+        arg1,
+        arg2,
+        NULL
+    };
+    
+    char *test_envp[] = {
+        "PATH=/usr/bin:/bin",
+        "HOME=/home/test",
+        "THREAD_ID=test",
+        NULL
+    };
+    
+    printf("[线程 %d] 开始发送请求: %s\n", args->thread_id, filename);
+    
+    // 调用客户端函数
+    int result = seeking_solutions(filename, test_argv, test_envp, args->log_path, &STDOUT_FILENO);
+    
+    args->success = (result == 0);
+    
+    // 更新统计信息
+    pthread_mutex_lock(&g_stats.mutex);
+    if (result == 0) {
+        g_stats.success++;
+        printf("[线程 %d] ✓ 成功\n", args->thread_id);
+    } else {
+        g_stats.failed++;
+        printf("[线程 %d] ✗ 失败 (返回值: %d)\n", args->thread_id, result);
+    }
+    pthread_mutex_unlock(&g_stats.mutex);
+    
+    return NULL;
+}
+
+/**
+ * 打印使用说明
+ */
+void print_usage(const char *prog_name) {
+    fprintf(stderr, "用法: %s <log_file_path> <线程数> [延迟ms]\n", prog_name);
+    fprintf(stderr, "\n参数说明:\n");
+    fprintf(stderr, "  log_file_path  - 日志文件路径\n");
+    fprintf(stderr, "  线程数         - 并发线程数量 (1-1000)\n");
+    fprintf(stderr, "  延迟ms         - 可选,每个线程启动前的延迟(毫秒)\n");
+    fprintf(stderr, "\n示例:\n");
+    fprintf(stderr, "  %s /tmp/test.log 10      # 10个并发线程\n", prog_name);
+    fprintf(stderr, "  %s /tmp/test.log 50 100  # 50个线程,每个延迟100ms\n", prog_name);
+}
+
+int main(int argc, char *argv[]) {
+    if (argc < 3) {
+        print_usage(argv[0]);
+        return 1;
+    }
+
+    const char *log_path = argv[1];
+    int num_threads = atoi(argv[2]);
+    int delay_ms = (argc >= 4) ? atoi(argv[3]) : 0;
+
+    // 验证参数
+    if (num_threads <= 0 || num_threads > 1000) {
+        fprintf(stderr, "错误: 线程数必须在 1-1000 之间\n");
+        return 1;
+    }
+
+    printf("====== 并发测试开始 ======\n");
+    printf("socket地址: %s\n", SOCKET_PATH);
+    printf("日志路径: %s\n", log_path);
+    printf("并发线程数: %d\n", num_threads);
+    printf("启动延迟: %d ms\n", delay_ms);
+    printf("========================\n\n");
+
+    // 分配线程资源
+    pthread_t *threads = malloc(sizeof(pthread_t) * num_threads);
+    thread_args_t *args = malloc(sizeof(thread_args_t) * num_threads);
+    
+    if (!threads || !args) {
+        fprintf(stderr, "错误: 内存分配失败\n");
+        free(threads);
+        free(args);
+        return 1;
+    }
+
+    // 初始化统计信息
+    g_stats.total = num_threads;
+    g_stats.success = 0;
+    g_stats.failed = 0;
+
+    // 记录开始时间
+    struct timespec start_time, end_time;
+    clock_gettime(CLOCK_MONOTONIC, &start_time);
+
+    // 创建并启动所有线程
+    printf("创建 %d 个线程...\n\n", num_threads);
+    for (int i = 0; i < num_threads; i++) {
+        args[i].thread_id = i;
+        args[i].log_path = log_path;
+        args[i].delay_ms = delay_ms;
+        args[i].success = 0;
+        
+        if (pthread_create(&threads[i], NULL, worker_thread, &args[i]) != 0) {
+            fprintf(stderr, "错误: 创建线程 %d 失败\n", i);
+            // 继续创建其他线程
+        }
+    }
+
+    // 等待所有线程完成
+    printf("等待所有线程完成...\n\n");
+    for (int i = 0; i < num_threads; i++) {
+        pthread_join(threads[i], NULL);
+    }
+
+    // 记录结束时间
+    clock_gettime(CLOCK_MONOTONIC, &end_time);
+    
+    // 计算耗时
+    double elapsed = (end_time.tv_sec - start_time.tv_sec) + 
+                     (end_time.tv_nsec - start_time.tv_nsec) / 1e9;
+
+    // 打印统计结果
+    printf("\n====== 测试结果统计 ======\n");
+    printf("总线程数: %d\n", g_stats.total);
+    printf("成功: %d (%.1f%%)\n", g_stats.success, 
+           g_stats.total > 0 ? (g_stats.success * 100.0 / g_stats.total) : 0);
+    printf("失败: %d (%.1f%%)\n", g_stats.failed,
+           g_stats.total > 0 ? (g_stats.failed * 100.0 / g_stats.total) : 0);
+    printf("总耗时: %.3f 秒\n", elapsed);
+    printf("平均每个请求: %.3f 毫秒\n", 
+           g_stats.total > 0 ? (elapsed * 1000 / g_stats.total) : 0);
+    printf("吞吐量: %.1f 请求/秒\n", 
+           elapsed > 0 ? (g_stats.total / elapsed) : 0);
+    printf("========================\n");
+
+    // 清理资源
+    free(threads);
+    free(args);
+    pthread_mutex_destroy(&g_stats.mutex);
+
+    // 返回结果
+    if (g_stats.failed > 0) {
+        printf("\n✗ 测试完成,但有 %d 个请求失败\n", g_stats.failed);
+        return 1;
+    } else {
+        printf("\n✓ 所有测试通过!\n");
+        return 0;
+    }
+}