los_blackbox_common.h 文件参考

浏览源代码.

函数
int	FullWriteFile (const char *filePath, const char *buf, size_t bufSize, int isAppend)
int	SaveBasicErrorInfo (const char *filePath, const struct ErrorInfo *info)
int	CreateLogDir (const char *dirPath)
bool	IsLogPartReady (void)

函数说明

CreateLogDir()

int CreateLogDir

(

const char *

dirPath

)

在文件 los_blackbox_common.c 第 181 行定义.

{
    const char *temp = dirPath;
    char curPath[PATH_MAX_LEN];
    int idx = 0;
 
    if (dirPath == NULL) {
        BBOX_PRINT_ERR("dirPath is NULL!\n");
        return -1;
    }
    if (*dirPath != '/') {
        BBOX_PRINT_ERR("Invalid dirPath: %s\n", dirPath);
        return -1;
    }
    (void)memset_s(curPath, sizeof(curPath), 0, sizeof(curPath));
    curPath[idx++] = *dirPath++;
    while (*dirPath != '\0' && idx < sizeof(curPath)) {
        if (*dirPath == '/') {
            if (CreateNewDir(curPath) != 0) {
                return -1;
            }
        }
        curPath[idx] = *dirPath;
        dirPath++;
        idx++;
    }
    if (*dirPath != '\0') {
        BBOX_PRINT_ERR("dirPath [%s] is too long!\n", temp);
        return -1;
    }
 
    return CreateNewDir(curPath);
}

函数调用图:

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FullWriteFile()

int FullWriteFile	(	const char *	filePath,
		const char *	buf,
		size_t	bufSize,
		int	isAppend
	)

在文件 los_blackbox_common.c 第 57 行定义.

{
#ifdef LOSCFG_FS_VFS
    int fd;
    int totalToWrite = (int)bufSize;
    int totalWrite = 0;
 
    if (filePath == NULL || buf == NULL || bufSize == 0) {
        BBOX_PRINT_ERR("filePath: %p, buf: %p, bufSize: %lu!\n", filePath, buf, bufSize);
        return -1;
    }
 
    if (!IsLogPartReady()) {
        BBOX_PRINT_ERR("log path [%s] isn't ready to be written!\n", LOSCFG_BLACKBOX_LOG_ROOT_PATH);
        return -1;
    }
    fd = open(filePath, O_CREAT | O_RDWR | (isAppend ? O_APPEND : O_TRUNC), BBOX_FILE_MODE);
    if (fd < 0) {
        BBOX_PRINT_ERR("Create file [%s] failed, fd: %d!\n", filePath, fd);
        return -1;
    }
    while (totalToWrite > 0) {
        int writeThisTime = write(fd, buf, totalToWrite);
        if (writeThisTime < 0) {
            BBOX_PRINT_ERR("Failed to write file [%s]!\n", filePath);
            (void)close(fd);
            return -1;
        }
        buf += writeThisTime;
        totalToWrite -= writeThisTime;
        totalWrite += writeThisTime;
    }
    (void)fsync(fd);
    (void)close(fd);
 
    return (totalWrite == (int)bufSize) ? 0 : -1;
#else
    (VOID)filePath;
    (VOID)buf;
    (VOID)bufSize;
    (VOID)isAppend;
    return -1;
#endif
}

函数调用图:

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IsLogPartReady()

bool IsLogPartReady

(

void

)

在文件 los_blackbox_common.c 第 144 行定义.

{
    if (!g_isLogPartReady) {
        (void)foreach_mountpoint((foreach_mountpoint_t)IsLogPartMounted, LOSCFG_BLACKBOX_LOG_PART_MOUNT_POINT);
    }
    return g_isLogPartReady;
}

函数调用图:

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SaveBasicErrorInfo()

int SaveBasicErrorInfo	(	const char *	filePath,
		const struct ErrorInfo *	info
	)

在文件 los_blackbox_common.c 第 102 行定义.

{
    char *buf = NULL;
 
    if (filePath == NULL || info == NULL) {
        BBOX_PRINT_ERR("filePath: %p, event: %p!\n", filePath, info);
        return -1;
    }
 
    buf = LOS_MemAlloc(m_aucSysMem1, ERROR_INFO_MAX_LEN);
    if (buf == NULL) {
        BBOX_PRINT_ERR("LOS_MemAlloc failed!\n");
        return -1;
    }
    (void)memset_s(buf, ERROR_INFO_MAX_LEN, 0, ERROR_INFO_MAX_LEN);
    if (snprintf_s(buf, ERROR_INFO_MAX_LEN, ERROR_INFO_MAX_LEN - 1,
        ERROR_INFO_HEADER_FORMAT, info->event, info->module, info->errorDesc) != -1) {
        *(buf + ERROR_INFO_MAX_LEN - 1) = '\0';
        (void)FullWriteFile(filePath, buf, strlen(buf), 0);
    } else {
        BBOX_PRINT_ERR("buf is not enough or snprintf_s failed!\n");
    }
 
    (void)LOS_MemFree(m_aucSysMem1, buf);
 
    return 0;
}

函数调用图:

这是这个函数的调用关系图: