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job control: sessions and process groups

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Matheus
2024-05-01 21:42:38 -03:00
parent 1f848fe596
commit 05049a091f
13 changed files with 484 additions and 18 deletions
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kernel-src/include/kernel/scheduler.h
+23
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@@ -74,6 +74,29 @@ typedef struct proc_t {
semaphore_t waitsem;
spinlock_t exiting;
bool nomorethreads;
spinlock_t jobctllock;
struct {
// NULL if this process is leader
struct proc_t *leader;
// these are only applicable if the process is leader
struct proc_t *foreground; // process group leader, NULL if self
void *controllingtty;
int processcount; // refcount
} session;
struct {
// NULL if this process is leader
struct proc_t *leader;
// linked list
struct proc_t *nextmember;
struct proc_t *previousmember;
// these are only applicable if the process is leader
spinlock_t lock; // protects the linked list
int processcount; // refcount
} pgrp;
} proc_t;
#include <arch/cpu.h>