proc_p.h

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#ifndef KERN_PROC_P_H
#define KERN_PROC_P_H

#include "cfg/cfg_proc.h"
#include "cfg/cfg_monitor.h"

#include <cfg/compiler.h>

#include <cpu/types.h>        /* for cpu_stack_t */
#include <cpu/irq.h>          // IRQ_ASSERT_DISABLED()

#if CONFIG_KERN_PREEMPT
    #include <ucontext.h> // XXX
#endif

#include <kern/proc.h>   // struct Process


#define PF_FREESTACK  BV(0)  
/*\}*/


extern REGISTER Process *CurrentProcess;

extern REGISTER List     ProcReadyList;

#if CONFIG_KERN_PRI
    #define SCHED_ENQUEUE_INTERNAL(proc) LIST_ENQUEUE(&ProcReadyList, &(proc)->link)
#else
    #define SCHED_ENQUEUE_INTERNAL(proc) ADDTAIL(&ProcReadyList, &(proc)->link)
#endif

#define SCHED_ENQUEUE(proc)  do { \
        IRQ_ASSERT_DISABLED(); \
        LIST_ASSERT_VALID(&ProcReadyList); \
        SCHED_ENQUEUE_INTERNAL(proc); \
    } while (0)

#if CONFIG_KERN_PRI

INLINE void sched_reenqueue(struct Process *proc)
{
    IRQ_ASSERT_DISABLED();
    LIST_ASSERT_VALID(&ProcReadyList);
    Node *n;
    PriNode *pos = NULL;
    FOREACH_NODE(n, &ProcReadyList)
    {
        if (n == &proc->link.link)
        {
            pos = (PriNode *)n;
            break;
        }
    }

    // only remove and enqueue again if process is already in the ready list
    // otherwise leave it alone
    if (pos)
    {
        REMOVE(&proc->link.link);
        LIST_ENQUEUE(&ProcReadyList, &proc->link);
    }
}
#endif //CONFIG_KERN_PRI

void proc_switch(void);

#if CONFIG_KERN_PREEMPT
void proc_entry(void (*user_entry)(void));
void preempt_init(void);
#endif

#if CONFIG_KERN_MONITOR

    void monitor_init(void);

    void monitor_add(Process *proc, const char *name);

    void monitor_remove(Process *proc);

    void monitor_rename(Process *proc, const char *name);
#endif /* CONFIG_KERN_MONITOR */

#endif /* KERN_PROC_P_H */