xnu-2422.115.4.tar.gz

[apple/xnu.git] / bsd / sys / proc.h

diff --git a/bsd/sys/proc.h b/bsd/sys/proc.h
index 8cec174a3a6b54f8a86562b675f8bd5dbd7e33a6..afe765190395be6fa7ee01eb1ac3f0252bb38000 100644 (file)
--- a/bsd/sys/proc.h
+++ b/bsd/sys/proc.h
@@ -182,7 +182,7 @@ struct extern_proc {
 #define        P_SSTEP         0x20000 / * process needs single-step fixup ??? * /
 */
 
-#define        P_RESV5         0x00040000      /* (P_WAITING) process has a wait() in progress */
+#define        P_DELAYIDLESLEEP 0x00040000     /* Process is marked to delay idle sleep on disk IO */
 #define        P_CHECKOPENEVT  0x00080000      /* check if a vnode has the OPENEVT flag set on open */
 
 #define        P_DEPENDENCY_CAPABLE    0x00100000      /* process is ok to call vfs_markdependency() */
@@ -207,6 +207,19 @@ struct extern_proc {
 #define        P_FSTRACE       0               /* Obsolete: retained for compilation */
 #define        P_SSTEP         0               /* Obsolete: retained for compilation */
 
+#define P_DIRTY_TRACK                           0x00000001      /* track dirty state */
+#define P_DIRTY_ALLOW_IDLE_EXIT                 0x00000002      /* process can be idle-exited when clean */
+#define P_DIRTY_DEFER                           0x00000004      /* defer initial opt-in to idle-exit */
+#define P_DIRTY                                 0x00000008      /* process is dirty */
+#define P_DIRTY_SHUTDOWN                        0x00000010      /* process is dirty during shutdown */
+#define P_DIRTY_TERMINATED                      0x00000020      /* process has been marked for termination */
+#define P_DIRTY_BUSY                            0x00000040      /* serialization flag */
+#define P_DIRTY_MARKED                          0x00000080      /* marked dirty previously */
+#define P_DIRTY_DEFER_IN_PROGRESS               0x00000100      /* deferral to idle-band in process */
+
+#define P_DIRTY_IS_DIRTY                        (P_DIRTY | P_DIRTY_SHUTDOWN)
+#define P_DIRTY_IDLE_EXIT_ENABLED               (P_DIRTY_TRACK|P_DIRTY_ALLOW_IDLE_EXIT)
+
 #endif /* XNU_KERNEL_PRIVATE || !KERNEL */
 
 #ifdef KERNEL
@@ -289,18 +302,43 @@ extern int IS_64BIT_PROCESS(proc_t);
 extern int     tsleep(void *chan, int pri, const char *wmesg, int timo);
 extern int     msleep1(void *chan, lck_mtx_t *mtx, int pri, const char *wmesg, u_int64_t timo);
 
+task_t proc_task(proc_t);
 extern int proc_pidversion(proc_t);
 extern int proc_getcdhash(proc_t, unsigned char *);
-#endif /* KERNEL_PRIVATE */
-#ifdef XNU_KERNEL_PRIVATE
+
+/*! 
+ @function    proc_pidbackgrounded
+ @abstract    KPI to determine if a process is currently backgrounded.
+ @discussion  The process may move into or out of background state at any time, 
+              so be prepared for this value to be outdated immediately. 
+ @param pid   PID of the process to be queried.
+ @param state Pointer to a value which will be set to 1 if the process
+              is currently backgrounded, 0 otherwise. 
+ @return      ESRCH if pid cannot be found or has started exiting.
+
+              EINVAL if state is NULL.
+ */
+extern int proc_pidbackgrounded(pid_t pid, uint32_t* state);
+
 /* 
  * This returns an unique 64bit id of a given process. 
  * Caller needs to hold proper reference on the 
  * passed in process strucutre.
  */
 extern uint64_t proc_uniqueid(proc_t);
-extern uint64_t proc_selfuniqueid(void);
+
+#endif /* KERNEL_PRIVATE */
+
+#ifdef XNU_KERNEL_PRIVATE
+
+/* unique 64bit id for process's original parent */
+extern uint64_t proc_puniqueid(proc_t);
+
 extern void proc_getexecutableuuid(proc_t, unsigned char *, unsigned long);
+
+extern uint64_t proc_was_throttled(proc_t);
+extern uint64_t proc_did_throttle(proc_t);
+
 #endif /* XNU_KERNEL_PRIVATE*/
 
 __END_DECLS