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scheduler: pid refcount

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Matheus
2024-04-28 18:45:43 -03:00
parent 8deb3a1144
commit e0c2cd9a2a
4 changed files with 38 additions and 2 deletions
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kernel-src/include/kernel/scheduler.h
+10
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@@ -46,10 +46,12 @@ typedef struct thread_t {
spinlock_t sleeplock;
int wakeupreason;
bool shouldexit;
void *kernelarg;
} thread_t;
typedef struct proc_t {
spinlock_t lock;
int refcount;
int status;
int state;
struct proc_t *sibling;
@@ -77,6 +79,13 @@ typedef struct proc_t {
#include <arch/cpu.h>
#define UMASK(mode) ((mode) & ~_cpu()->thread->proc->umask)
#define PROC_HOLD(v) __atomic_add_fetch(&(v)->refcount, 1, __ATOMIC_SEQ_CST)
#define PROC_RELEASE(v) {\
if (__atomic_sub_fetch(&(v)->refcount, 1, __ATOMIC_SEQ_CST) == 0) {\
sched_inactiveproc(v); \
(v) = NULL; \
} \
}
extern proc_t *sched_initproc;
@@ -101,5 +110,6 @@ void sched_destroythread(thread_t *);
void sched_targetcpu(struct cpu_t *cpu);
void sched_sleepus(size_t us);
void sched_apentry();
void sched_inactiveproc(proc_t *proc);
#endif