mirror of
https://github.com/checkpoint-restore/criu.git
synced 2026-07-25 19:14:04 +00:00
549998b118
This saves memory. Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org> Signed-off-by: Pavel Emelyanov <xemul@parallels.com>
33 lines
765 B
C
33 lines
765 B
C
#ifndef __CR_SYSCTL_H__
|
|
#define __CR_SYSCTL_H__
|
|
|
|
struct sysctl_req {
|
|
char *name;
|
|
void *arg;
|
|
int type;
|
|
};
|
|
|
|
extern int sysctl_op(struct sysctl_req *req, size_t nr_req, int op);
|
|
|
|
enum {
|
|
CTL_READ,
|
|
CTL_WRITE,
|
|
};
|
|
|
|
#define CTL_SHIFT 4 /* Up to 16 types */
|
|
|
|
#define CTL_U32 1 /* Single u32 */
|
|
#define CTL_U64 2 /* Single u64 */
|
|
#define __CTL_U32A 3 /* Array of u32 */
|
|
#define __CTL_U64A 4 /* Array of u64 */
|
|
#define __CTL_STR 5 /* String */
|
|
#define CTL_32 6 /* Single s32 */
|
|
|
|
#define CTL_U32A(n) (__CTL_U32A | ((n) << CTL_SHIFT))
|
|
#define CTL_U64A(n) (__CTL_U64A | ((n) << CTL_SHIFT))
|
|
#define CTL_STR(len) (__CTL_STR | ((len) << CTL_SHIFT))
|
|
|
|
#define CTL_LEN(t) ((t) >> CTL_SHIFT)
|
|
#define CTL_TYPE(t) ((t) & ((1 << CTL_SHIFT) - 1))
|
|
|
|
#endif /* __CR_SYSCTL_H__ */
|