C++ (Cpp) oprofile_set_ulong示例

示例#1

文件： oprofilefs.c 项目： acton393/linux

static ssize_t ulong_write_file(struct file *file, char const __user *buf, size_t count, loff_t *offset)
{
	unsigned long value;
	int retval;

	if (*offset)
		return -EINVAL;

	retval = oprofilefs_ulong_from_user(&value, buf, count);
	if (retval <= 0)
		return retval;

	retval = oprofile_set_ulong(file->private_data, value);
	if (retval)
		return retval;

	return count;
}

示例#2

文件： op_ca_css_files.c 项目： concocon/CodeAnalyst-3_4_18_0413-Public

ssize_t ca_css_tgid_write(struct file * file, char const __user * buf, size_t count, loff_t * offset)
{
	unsigned long val;
	int retval;

	if (*offset)
		return -EINVAL;

	if (!oprofile_ops.ca_css)
		return -EINVAL;

	retval = oprofilefs_ulong_from_user(&val, buf, count);
	if (retval)
		return retval;

	retval = oprofile_set_ulong(&ca_css_tgid, val);
	if (retval)
		return retval;

	return count;
}

示例#3

文件： oprofile_files.c 项目： CSCLOG/beaglebone

static ssize_t depth_write(struct file *file, char const __user *buf, size_t count, loff_t *offset)
{
	unsigned long val;
	int retval;

	if (*offset)
		return -EINVAL;

	if (!oprofile_ops.backtrace)
		return -EINVAL;

	retval = oprofilefs_ulong_from_user(&val, buf, count);
	if (retval)
		return retval;

	retval = oprofile_set_ulong(&oprofile_backtrace_depth, val);
	if (retval)
		return retval;

	return count;
}