C++ (Cpp) system_in_tp_list Examples

Example #1

File: trace-event-info.c Project: 12rafael/jellytimekernel

static void read_event_files(struct tracepoint_path *tps)
{
	struct dirent *dent;
	struct stat st;
	char *path;
	char *sys;
	DIR *dir;
	int count = 0;
	int ret;

	path = get_tracing_file("events");

	dir = opendir(path);
	if (!dir)
		die("can't read directory '%s'", path);

	while ((dent = readdir(dir))) {
		if (dent->d_type != DT_DIR ||
		    strcmp(dent->d_name, ".") == 0 ||
		    strcmp(dent->d_name, "..") == 0 ||
		    strcmp(dent->d_name, "ftrace") == 0 ||
		    !system_in_tp_list(dent->d_name, tps))
			continue;
		count++;
	}

	write_or_die(&count, 4);

	rewinddir(dir);
	while ((dent = readdir(dir))) {
		if (dent->d_type != DT_DIR ||
		    strcmp(dent->d_name, ".") == 0 ||
		    strcmp(dent->d_name, "..") == 0 ||
		    strcmp(dent->d_name, "ftrace") == 0 ||
		    !system_in_tp_list(dent->d_name, tps))
			continue;
		sys = malloc_or_die(strlen(path) + strlen(dent->d_name) + 2);
		sprintf(sys, "%s/%s", path, dent->d_name);
		ret = stat(sys, &st);
		if (ret >= 0) {
			write_or_die(dent->d_name, strlen(dent->d_name) + 1);
			copy_event_system(sys, tps);
		}
		free(sys);
	}

	closedir(dir);
	put_tracing_file(path);
}

Example #2

File: trace-event-info.c Project: AshishNamdev/linux

static int record_event_files(struct tracepoint_path *tps)
{
	struct dirent *dent;
	struct stat st;
	char *path;
	char *sys;
	DIR *dir;
	int count = 0;
	int ret;
	int err;

	path = get_tracing_file("events");
	if (!path) {
		pr_debug("can't get tracing/events");
		return -ENOMEM;
	}

	dir = opendir(path);
	if (!dir) {
		err = -errno;
		pr_debug("can't read directory '%s'", path);
		goto out;
	}

	for_each_event(dir, dent, tps) {
		if (strcmp(dent->d_name, "ftrace") == 0 ||
		    !system_in_tp_list(dent->d_name, tps))
			continue;

		count++;
	}

	if (write(output_fd, &count, 4) != 4) {
		err = -EIO;
		pr_debug("can't write count\n");
		goto out;
	}

	rewinddir(dir);
	for_each_event(dir, dent, tps) {
		if (strcmp(dent->d_name, "ftrace") == 0 ||
		    !system_in_tp_list(dent->d_name, tps))
			continue;

		if (asprintf(&sys, "%s/%s", path, dent->d_name) < 0) {
			err = -ENOMEM;
			goto out;
		}
		ret = stat(sys, &st);
		if (ret >= 0) {
			ssize_t size = strlen(dent->d_name) + 1;

			if (write(output_fd, dent->d_name, size) != size ||
			    copy_event_system(sys, tps) < 0) {
				err = -EIO;
				free(sys);
				goto out;
			}
		}
		free(sys);
	}
	err = 0;
out:
	closedir(dir);
	put_tracing_file(path);

	return err;
}