C++ (Cpp) count_arguments Examples

Example #1

File: exec.cpp Project: looncraz/haiku

int
execlp(const char* file, const char* arg, ...)
{
	const char** args;
	va_list list;
	int count;

	// count arguments

	va_start(list, arg);
	count = count_arguments(list, arg, NULL);
	va_end(list);

	// copy arguments

	args = (const char**)alloca((count + 1) * sizeof(char*));
	va_start(list, arg);
	copy_arguments(list, args, arg);
	va_end(list);

	return execvp(file, (char* const*)args);
}

Example #2

File: exec.cpp Project: looncraz/haiku

int
execl(const char* path, const char* arg, ...)
{
	const char** args;
	va_list list;
	int count;

	// count arguments

	va_start(list, arg);
	count = count_arguments(list, arg, NULL);
	va_end(list);

	// copy arguments

	args = (const char**)alloca((count + 1) * sizeof(char*));
	va_start(list, arg);
	copy_arguments(list, args, arg);
	va_end(list);

	return do_exec(path, (char* const*)args, environ, false);
}

Example #3

File: exec.cpp Project: looncraz/haiku

int
execle(const char* path, const char* arg, ... /*, char** env */)
{
	const char** args;
	char** env;
	va_list list;
	int count;

	// count arguments

	va_start(list, arg);
	count = count_arguments(list, arg, &env);
	va_end(list);

	// copy arguments

	args = (const char**)alloca((count + 1) * sizeof(char*));
	va_start(list, arg);
	copy_arguments(list, args, arg);
	va_end(list);

	return do_exec(path, (char* const*)args, env, false);
}

Example #4

File: snapshot.c Project: ryzhyk/lttng-tools

static int handle_command(const char **argv)
{
	int ret = CMD_SUCCESS, i = 0, argc, command_ret =  CMD_SUCCESS;
	struct cmd_struct *cmd;

	if (argv == NULL || (!opt_ctrl_url && opt_data_url) ||
			(opt_ctrl_url && !opt_data_url)) {
		usage(stderr);
		command_ret = CMD_ERROR;
		goto end;
	}

	argc = count_arguments(argv);

	cmd = &actions[i];
	while (cmd->func != NULL) {
		/* Find command */
		if (strcmp(argv[0], cmd->name) == 0) {
			if (lttng_opt_mi) {
				/* Action element */
				ret = mi_lttng_writer_open_element(writer,
						mi_lttng_element_command_action);
				if (ret) {
					ret = CMD_ERROR;
					goto end;
				}

				/* Name of the action */
				ret = mi_lttng_writer_write_element_string(writer,
						config_element_name, argv[0]);
				if (ret) {
					ret = CMD_ERROR;
					goto end;
				}

				/* Open output element */
				ret = mi_lttng_writer_open_element(writer,
						mi_lttng_element_command_output);
				if (ret) {
					ret = CMD_ERROR;
					goto end;
				}
			}

			command_ret = cmd->func(argc, argv);

			if (lttng_opt_mi) {
				/* Close output and action element */
				ret = mi_lttng_close_multi_element(writer, 2);
				if (ret) {
					ret = CMD_ERROR;
					goto end;
				}
			}
			goto end;
		}
		i++;
		cmd = &actions[i];
	}

	ret = CMD_UNDEFINED;

end:
	/* Overwrite ret if an error occurred in cmd->func() */
	ret = command_ret ? command_ret : ret;
	return ret;
}