watch_shellcmd.c 文件参考

浏览源代码.

结构体
struct	WatchCB

函数
STATIC VOID	PrintTime (VOID)
STATIC VOID	OsShellCmdDoWatch (UINTPTR arg1)
STATIC INLINE VOID	OsWatchCmdUsage (VOID)
STATIC UINT32	OsWatchOverFunc (VOID)
INT32	OsWatchOptionParsed (UINT32 argc, UINT32 *argoff, const CHAR **argv, WatchCB *watchItem)
INT32	OsWatchCmdSplice (UINT32 argc, UINT32 argoff, const CHAR **argv, WatchCB *watchItem)
UINT32	OsWatchTaskCreate (WatchCB *watchItem)
UINT32	OsShellCmdWatch (UINT32 argc, const CHAR **argv)
	SHELLCMD_ENTRY (watch_shellcmd, CMD_TYPE_EX, "watch", XARGS,(CmdCallBackFunc) OsShellCmdWatch)

变量
STATIC WatchCB *	g_watchCmd

函数说明

OsShellCmdDoWatch()

STATIC VOID OsShellCmdDoWatch

(

UINTPTR

arg1

)

在文件 watch_shellcmd.c 第 69 行定义.

{
    WatchCB *watchItem = (WatchCB *)arg1;
    UINT32 ret;
    g_watchCmd = watchItem;
 
    while (watchItem->count--) {
        printf("\033[2J\n");
        if (watchItem->title) {
            PrintTime();
        }
        (VOID)ShellMsgParse(watchItem->cmdbuf);
        ret = LOS_EventRead(&watchItem->watchEvent, 0x01, LOS_WAITMODE_OR | LOS_WAITMODE_CLR, watchItem->interval);
        if (ret == 0x01) {
            break;
        }
    }
 
    (VOID)LOS_EventDestroy(&watchItem->watchEvent);
    free(g_watchCmd);
    g_watchCmd = NULL;
}

函数调用图:

这是这个函数的调用关系图:

OsShellCmdWatch()

UINT32 OsShellCmdWatch	(	UINT32	argc,
		const CHAR **	argv
	)

在文件 watch_shellcmd.c 第 216 行定义.

{
    WatchCB *watchItem = NULL;
    UINT32 argoff = 0;
    UINT32 ret;
    INT32 err;
 
    if (argc == 0) {
        OsWatchCmdUsage();
        return OS_ERROR;
    }
 
    if (argv == NULL) {
        OsWatchCmdUsage();
        return OS_ERROR;
    }
 
    if ((argc == 1) && (strcmp(argv[0], "--over") == 0)) {
        ret = OsWatchOverFunc();
        return ret;
    }
 
    if (g_watchCmd != NULL) {
        PRINTK("Please turn off previous watch before to start a new watch.\n");
        return OS_ERROR;
    }
 
    watchItem = (WatchCB *)malloc(sizeof(WatchCB));
    if (watchItem == NULL) {
        PRINTK("Malloc error!\n");
        return OS_ERROR;
    }
    (VOID)memset_s(watchItem, sizeof(WatchCB), 0, sizeof(WatchCB));
    watchItem->title = TRUE;
    watchItem->count = WATCH_COUNT_MAX;
    watchItem->interval = g_tickPerSecond;
 
    err = OsWatchOptionParsed(argc, &argoff, argv, watchItem);
    if (err != 0) {
        goto WATCH_ERROR;
    }
 
    err = OsWatchCmdSplice(argc, argoff, argv, watchItem);
    if (err != 0) {
        goto WATCH_ERROR;
    }
 
    ret = OsWatchTaskCreate(watchItem);
    if (ret != 0) {
        goto WATCH_ERROR;
    }
 
    return LOS_OK;
 
WATCH_ERROR:
    free(watchItem);
    return OS_ERROR;
}

函数调用图:

OsWatchCmdSplice()

INT32 OsWatchCmdSplice	(	UINT32	argc,
		UINT32	argoff,
		const CHAR **	argv,
		WatchCB *	watchItem
	)

在文件 watch_shellcmd.c 第 166 行定义.

{
    INT32 err = 0;
    if ((argc - argoff) == 0) {
        PRINT_ERR("no watch command!\n");
        return -1;
    }
    while (argc - argoff) {
        err = strcat_s(watchItem->cmdbuf, sizeof(watchItem->cmdbuf), argv[argoff]);
        if (err != EOK) {
            PRINT_ERR("%s, %d strcat_s failed!\n", __FUNCTION__, __LINE__);
            return -1;
        }
        err = strcat_s(watchItem->cmdbuf, sizeof(watchItem->cmdbuf), " ");
        if (err != EOK) {
            PRINT_ERR("%s, %d strcat_s failed!\n", __FUNCTION__, __LINE__);
            return -1;
        }
        argoff++;
    }
    return err;
}

这是这个函数的调用关系图:

OsWatchCmdUsage()

STATIC INLINE VOID OsWatchCmdUsage

(

VOID

)

在文件 watch_shellcmd.c 第 92 行定义.

{
    PRINTK("\nUsage: watch\n");
    PRINTK("watch [options] command\n");
}

这是这个函数的调用关系图:

OsWatchOptionParsed()

INT32 OsWatchOptionParsed	(	UINT32	argc,
		UINT32 *	argoff,
		const CHAR **	argv,
		WatchCB *	watchItem
	)

在文件 watch_shellcmd.c 第 114 行定义.

{
    long tmpVal;
    CHAR *strPtr = NULL;
    UINT32 argcount = argc;
 
    while (argv[*argoff][0] == '-') {
        if (argcount <= 1) {
            OsWatchCmdUsage();
            return -1;
        }
 
        if ((strcmp(argv[*argoff], "-n") == 0) || (strcmp(argv[*argoff], "--interval") == 0)) {
            if (argcount <= 2) { /* 2:count of parameter */
                OsWatchCmdUsage();
                return -1;
            }
            tmpVal = (long)strtoul(argv[*argoff + 1], &strPtr, 0);
            if ((*strPtr != 0) || (tmpVal <= 0) || (tmpVal > WATCH_INTERTVAL_MAX)) {
                PRINTK("\ninterval time is invalid\n");
                OsWatchCmdUsage();
                return -1;
            }
            watchItem->interval = g_tickPerSecond * (UINT32)tmpVal;
            argcount -= 2; /* 2:offset of argv */
            (*argoff) += 2; /* 2:offset of argv */
        } else if ((strcmp(argv[*argoff], "-t") == 0) || (strcmp(argv[*argoff], "-no-title") == 0)) {
            watchItem->title = FALSE;
            argcount--;
            (*argoff)++;
        } else if ((strcmp(argv[*argoff], "-c") == 0) || (strcmp(argv[*argoff], "--count") == 0)) {
            if (argcount <= 2) { /* 2:count of parameter */
                OsWatchCmdUsage();
                return -1;
            }
            tmpVal = (long)strtoul(argv[*argoff + 1], &strPtr, 0);
            if ((*strPtr != 0) || (tmpVal <= 0) || (tmpVal > WATCH_COUNT_MAX)) {
                PRINTK("\ncount is invalid\n");
                OsWatchCmdUsage();
                return -1;
            }
            watchItem->count = (UINT32)tmpVal;
            argcount -= 2; /* 2:offset of argv */
            (*argoff) += 2; /* 2:offset of argv */
        } else {
            PRINTK("Unknown option.\n");
            return -1;
        }
    }
    return 0;
}

函数调用图:

这是这个函数的调用关系图:

OsWatchOverFunc()

STATIC UINT32 OsWatchOverFunc

(

VOID

)

在文件 watch_shellcmd.c 第 98 行定义.

{
    UINT32 ret;
    if (g_watchCmd != NULL) {
        ret = LOS_EventWrite(&g_watchCmd->watchEvent, 0x01);
        if (ret != LOS_OK) {
            PRINT_ERR("Write event failed in %s,%d\n", __FUNCTION__, __LINE__);
            return OS_ERROR;
        }
        return LOS_OK;
    } else {
        PRINTK("No watch task to turn off.\n");
        return OS_ERROR;
    }
}

函数调用图:

这是这个函数的调用关系图:

OsWatchTaskCreate()

UINT32 OsWatchTaskCreate

(

WatchCB *

watchItem

)

在文件 watch_shellcmd.c 第 189 行定义.

{
    TSK_INIT_PARAM_S initParam = {0};
    UINT32 watchTaskId = 0;
    UINT32 ret;
 
    ret = LOS_EventInit(&watchItem->watchEvent);
    if (ret != 0) {
        PRINT_ERR("Watch event init failed in %s, %d\n", __FUNCTION__, __LINE__);
        return ret;
    }
 
    initParam.pfnTaskEntry = (TSK_ENTRY_FUNC)OsShellCmdDoWatch;
    initParam.usTaskPrio   = 10; /* 10:shellcmd_watch task priority */
    initParam.auwArgs[0]   = (UINTPTR)watchItem;
    initParam.uwStackSize  = 0x3000; /* 0x3000:stack size of shellcmd_watch task */
    initParam.pcName       = "shellcmd_watch";
    initParam.uwResved     = LOS_TASK_STATUS_DETACHED;
 
    ret = LOS_TaskCreate(&watchTaskId, &initParam);
    if (ret != 0) {
        PRINT_ERR("Watch task init failed in %s, %d\n", __FUNCTION__, __LINE__);
        return ret;
    }
    return ret;
}

函数调用图:

这是这个函数的调用关系图:

PrintTime()

STATIC VOID PrintTime

(

VOID

)

在文件 watch_shellcmd.c 第 60 行定义.

{
    struct timeval64 stNowTime = {0};
 
    if (gettimeofday64(&stNowTime, NULL) == 0) {
        PRINTK("%s", ctime64(&(stNowTime.tv_sec)));
    }
}

函数调用图:

这是这个函数的调用关系图:

SHELLCMD_ENTRY()

SHELLCMD_ENTRY	(	watch_shellcmd	,
		CMD_TYPE_EX	,
		"watch"	,
		XARGS	,
		(CmdCallBackFunc)	OsShellCmdWatch
	)

变量说明

g_watchCmd

STATIC WatchCB* g_watchCmd

在文件 watch_shellcmd.c 第 55 行定义.