sanchayanmaity/minix
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Message type for SYS_SCHEDCTL

Browse source 
Change-Id: Iaccbac1ef99124bc494b835e0d0cf999ea2e3f5a
This commit is contained in:
Lionel Sambuc 2014-05-14 16:39:00 +02:00
parent b90d99dab3
commit 8ba159d242
4 changed files with 27 additions and 21 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

5
include/minix/com.h
View file

@ -581,15 +581,10 @@
#define SYS_STATE_CLEAR_IPC_REFS 1 /* clear IPC references */
/* Subfunctions for SYS_SCHEDCTL */
#define SCHEDCTL_FLAGS m9_l1 /* flags for setting the scheduler */
# define SCHEDCTL_FLAG_KERNEL 1 /* mark kernel scheduler and remove
* RTS_NO_QUANTUM; otherwise caller is
* marked scheduler
*/
#define SCHEDCTL_ENDPOINT m9_l2 /* endpt of process to be scheduled */
#define SCHEDCTL_QUANTUM m9_l3 /* current scheduling quantum */
#define SCHEDCTL_PRIORITY m9_s4 /* current scheduling priority */
#define SCHEDCTL_CPU m9_l5 /* where to place this process */
/* Field names for SYS_PADCONF */
#define PADCONF_PADCONF m2_i1 /* pad to configure */

13
include/minix/ipc.h
View file

@ -563,6 +563,17 @@ typedef struct {
} mess_pm_lexec_exec_new;
_ASSERT_MSG_SIZE(mess_pm_lexec_exec_new);
typedef struct {
uint32_t flags;
endpoint_t endpoint;
int priority;
int quantum;
int cpu;
uint8_t padding[36];
} mess_lsys_krn_schedctl;
_ASSERT_MSG_SIZE(mess_lsys_krn_schedctl);
typedef struct {
endpoint_t endpt;
@ -1161,6 +1172,8 @@ typedef struct {
mess_lexec_pm_exec_new m_lexec_pm_exec_new;
mess_lsys_krn_schedctl m_lsys_krn_schedctl;
mess_lsys_pm_getepinfo m_lsys_pm_getepinfo;
mess_lsys_pm_getprocnr m_lsys_pm_getprocnr;
mess_lsys_pm_srv_fork m_lsys_pm_srv_fork;

12
kernel/system/do_schedctl.c
View file

@ -7,20 +7,20 @@
int do_schedctl(struct proc * caller, message * m_ptr)
{
struct proc *p;
unsigned flags;
uint32_t flags;
int priority, quantum, cpu;
int proc_nr;
int r;
/* check parameter validity */
flags = (unsigned) m_ptr->SCHEDCTL_FLAGS;
flags = m_ptr->m_lsys_krn_schedctl.flags;
if (flags & ~SCHEDCTL_FLAG_KERNEL) {
printf("do_schedctl: flags 0x%x invalid, caller=%d\n",
flags, caller - proc);
return EINVAL;
}
if (!isokendpt(m_ptr->SCHEDCTL_ENDPOINT, &proc_nr))
if (!isokendpt(m_ptr->m_lsys_krn_schedctl.endpoint, &proc_nr))
return EINVAL;
p = proc_addr(proc_nr);
@ -29,9 +29,9 @@ int do_schedctl(struct proc * caller, message * m_ptr)
/* the kernel becomes the scheduler and starts
* scheduling the process.
*/
priority = (int) m_ptr->SCHEDCTL_PRIORITY;
quantum = (int) m_ptr->SCHEDCTL_QUANTUM;
cpu = (int) m_ptr->SCHEDCTL_CPU;
priority = m_ptr->m_lsys_krn_schedctl.priority;
quantum = m_ptr->m_lsys_krn_schedctl.quantum;
cpu = m_ptr->m_lsys_krn_schedctl.cpu;
/* Try to schedule the process. */
if((r = sched_proc(p, priority, quantum, cpu) != OK))

16
lib/libsys/sys_schedctl.c
View file

@ -1,17 +1,15 @@
#include "syslib.h"
int sys_schedctl(unsigned flags,
endpoint_t proc_ep,
int priority,
int quantum,
int sys_schedctl(uint32_t flags, endpoint_t proc_ep, int priority, int quantum,
int cpu)
{
message m;
m.SCHEDCTL_FLAGS = (int) flags;
m.SCHEDCTL_ENDPOINT = proc_ep;
m.SCHEDCTL_PRIORITY = priority;
m.SCHEDCTL_QUANTUM = quantum;
m.SCHEDCTL_CPU = cpu;
m.m_lsys_krn_schedctl.flags = flags;
m.m_lsys_krn_schedctl.endpoint = proc_ep;
m.m_lsys_krn_schedctl.priority = priority;
m.m_lsys_krn_schedctl.quantum = quantum;
m.m_lsys_krn_schedctl.cpu = cpu;
return(_kernel_call(SYS_SCHEDCTL, &m));
}