option.c 文件参考

浏览源代码.

函数
static int	ParseOption (char **argv, int *index, PerfOption *opts)
int	ParseOptions (int argc, char **argv, PerfOption *opts, SubCmd *cmd)
int	ParseIds (const char *argv, int *arr, unsigned int *len)
static const PerfEvent *	StrToEvent (const char *str)
int	ParseEvents (const char *argv, PerfEventConfig *eventsCfg, unsigned int *len)

函数说明

ParseEvents()

int ParseEvents	(	const char *	argv,
		PerfEventConfig *	eventsCfg,
		unsigned int *	len
	)

在文件 option.c 第 144 行定义.

{
    int ret;
    unsigned int index  = 0;
    const PerfEvent *event = NULL;
    char *sp = NULL;
    char *this = NULL;
    char *list = strdup(argv);
 
    if (list == NULL) {
        printf("no memory for ParseEvents\n");
        return -1;
    }
 
    sp = strtok_r(list, ",", &this);
    while (sp) {
        event = StrToEvent(sp);
        if (event == NULL) {
            ret = -1;
            goto EXIT;
        }
 
        if (index == 0) {
            eventsCfg->type = event->type;
        } else if (eventsCfg->type != event->type) {
            printf("events type must be same\n");
            ret = -1;
            goto EXIT;
        }
        eventsCfg->events[index].eventId = event->event;
        sp = strtok_r(NULL, ",", &this);
        index++;
    }
    *len = index;
    ret = 0;
EXIT:
    free(list);
    return ret;
}

函数调用图:

这是这个函数的调用关系图:

ParseIds()

int ParseIds	(	const char *	argv,
		int *	arr,
		unsigned int *	len
	)

在文件 option.c 第 102 行定义.

{
    int res, ret;
    unsigned int index  = 0;
    char *sp = NULL;
    char *this = NULL;
    char *list = strdup(argv);
 
    if (list == NULL) {
        printf("no memory for ParseIds\n");
        return -1;
    }
 
    sp = strtok_r(list, ",", &this);
    while (sp) {
        res = strtoul(sp, NULL, 0);
        if (res < 0) {
            ret = -1;
            goto EXIT;
        }
        arr[index++] = res;
        sp = strtok_r(NULL, ",", &this);
    }
    *len = index;
    ret = 0;
EXIT:
    free(list);
    return ret;
}

函数调用图:

这是这个函数的调用关系图:

ParseOption()

static int ParseOption ( char **  argv, int *  index, PerfOption *  opts  )

static

在文件 option.c 第 37 行定义.

{
    int ret = 0;
    const char *str = NULL;
 
    while ((opts->name != NULL) && (*opts->name != 0)) {
        if (strcmp(argv[*index], opts->name) == 0) {
            switch (opts->type) {
                case OPTION_TYPE_UINT:
                    *opts->value = strtoul(argv[++(*index)], NULL, 0);
                    break;
                case OPTION_TYPE_STRING:
                    *opts->str = argv[++(*index)];
                    break;
                case OPTION_TYPE_CALLBACK:
                    str = argv[++(*index)];
                    if ((*opts->cb)(str) != 0) {
                        printf("parse error\n");
                        ret = -1;
                    }
                    break;
                default:
                    printf("invalid option\n");
                    ret = -1;
                    break;
            }
            return ret;
        }
        opts++;
    }
 
    return -1;
}

这是这个函数的调用关系图:

ParseOptions()

int ParseOptions	(	int	argc,
		char **	argv,
		PerfOption *	opts,
		SubCmd *	cmd
	)

在文件 option.c 第 71 行定义.

{
    int i;
    int index = 0;
 
    while ((index < argc) && (argv[index] != NULL) && (*argv[index] == '-')) {
        if (ParseOption(argv, &index, opts) != 0) {
            return -1;
        }
        index++;
    }
 
    if ((index < argc) && (argv[index] != NULL)) {
        cmd->path = argv[index];
        cmd->params[0] = argv[index];
        index++;
    } else {
        printf("no subcmd to execute\n");
        return -1;
    }
 
    for (i = 1; (index < argc) && (i < CMD_MAX_PARAMS); index++, i++) {
        cmd->params[i] = argv[index];
    }
    printf_debug("subcmd = %s\n", cmd->path);
    for (int j = 0; j < i; j++) {
        printf_debug("paras[%d]:%s\n", j, cmd->params[j]);
    }
    return 0;
}

函数调用图:

这是这个函数的调用关系图:

StrToEvent()

static const PerfEvent * StrToEvent ( const char *  str )

inlinestatic

在文件 option.c 第 132 行定义.

{
    const PerfEvent *evt = &g_events[0];
 
    for (; evt->event != -1; evt++) {
        if (strcmp(str, evt->name) == 0) {
            return evt;
        }
    }
    return NULL;
}

这是这个函数的调用关系图: