+#define P_OWEUPC 0x00008000 /* Owe process an addupc() call at next ast. */
+
+#define P_AFFINITY 0x00010000 /* xxx */
+#define P_TRANSLATED 0x00020000 /* xxx */
+#define P_CLASSIC P_TRANSLATED /* xxx */
+
+#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() */
+#define P_REBOOT 0x00200000 /* Process called reboot() */
+#define P_RESV6 0x00400000 /* used to be P_TBE */
+#define P_RESV7 0x00800000 /* (P_SIGEXC)signal exceptions */
+
+#define P_THCWD 0x01000000 /* process has thread cwd */
+#define P_RESV9 0x02000000 /* (P_VFORK)process has vfork children */
+#define P_ADOPTPERSONA 0x04000000 /* process adopted a persona (used to be P_NOATTACH) */
+#define P_RESV11 0x08000000 /* (P_INVFORK) proc in vfork */
+
+#define P_NOSHLIB 0x10000000 /* no shared libs are in use for proc */
+ /* flag set on exec */
+#define P_FORCEQUOTA 0x20000000 /* Force quota for root */
+#define P_NOCLDWAIT 0x40000000 /* No zombies when chil procs exit */
+#define P_NOREMOTEHANG 0x80000000 /* Don't hang on remote FS ops */
+
+#define P_INMEM 0 /* Obsolete: retained for compilation */
+#define P_NOSWAP 0 /* Obsolete: retained for compilation */
+#define P_PHYSIO 0 /* Obsolete: retained for compilation */
+#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_AGING_IN_PROGRESS 0x00000100 /* aging in one of the 'aging bands' */
+#define P_DIRTY_LAUNCH_IN_PROGRESS 0x00000200 /* launch is in progress */
+#define P_DIRTY_DEFER_ALWAYS 0x00000400 /* defer going to idle-exit after every dirty->clean transition.
+ * For legacy jetsam policy only. This is the default with the other policies.*/
+
+#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
+__BEGIN_DECLS
+
+extern proc_t kernproc;
+
+extern int proc_is_classic(proc_t p);
+extern bool proc_is_exotic(proc_t p);
+extern bool proc_is_alien(proc_t p);
+proc_t current_proc_EXTERNAL(void);
+
+extern int msleep(void *chan, lck_mtx_t *mtx, int pri, const char *wmesg, struct timespec * ts );
+extern void wakeup(void *chan);
+extern void wakeup_one(caddr_t chan);
+
+/* proc kpis */
+/* this routine returns the pid of the current process */
+extern int proc_selfpid(void);
+/* this routine returns the pid of the parent of the current process */
+extern int proc_selfppid(void);
+/* this routine returns the csflags of the current process */
+extern uint64_t proc_selfcsflags(void);
+/* this routine populates the given flags param with the csflags of the given process. Returns 0 on success, -1 on error. */
+extern int proc_csflags(proc_t p, uint64_t* flags);
+/* this routine returns sends a signal signum to the process identified by the pid */
+extern void proc_signal(int pid, int signum);
+/* this routine checks whether any signal identified by the mask are pending in the process identified by the pid. The check is on all threads of the process. */
+extern int proc_issignal(int pid, sigset_t mask);
+/* this routine returns 1 if the pid1 is inferior of pid2 */
+extern int proc_isinferior(int pid1, int pid2);
+/* this routine copies the process's name of the executable to the passed in buffer. It
+ * is always null terminated. The size of the buffer is to be passed in as well. This
+ * routine is to be used typically for debugging
+ */
+void proc_name(int pid, char * buf, int size);
+/* returns the 32-byte name if it exists, otherwise returns the 16-byte name */
+extern char *proc_best_name(proc_t p);
+/* This routine is simillar to proc_name except it returns for current process */
+void proc_selfname(char * buf, int size);
+
+/* find a process with a given pid. This comes with a reference which needs to be dropped by proc_rele */
+extern proc_t proc_find(int pid);
+/* find a process with a given process identity */
+extern proc_t proc_find_ident(struct proc_ident const *i);
+/* returns a handle to current process which is referenced. The reference needs to be dropped with proc_rele */
+extern proc_t proc_self(void);
+/* releases the held reference on the process */
+extern int proc_rele(proc_t p);
+/* returns the pid of the given process */
+extern int proc_pid(proc_t);
+/* returns the pid of the parent of a given process */
+extern int proc_ppid(proc_t);
+/* returns the original pid of the parent of a given process */
+extern int proc_original_ppid(proc_t);
+/* returns the start time of the given process */
+extern int proc_starttime(proc_t, struct timeval *);
+/* returns the platform (macos, ios, watchos, tvos, ...) of the given process */
+extern uint32_t proc_platform(const proc_t);
+/* returns the minimum sdk version used by the current process */
+extern uint32_t proc_min_sdk(proc_t);
+/* returns the sdk version used by the current process */
+extern uint32_t proc_sdk(proc_t);
+/* returns 1 if the process is marked for no remote hangs */
+extern int proc_noremotehang(proc_t);
+/* returns 1 if the process is marked for force quota */
+extern int proc_forcequota(proc_t);
+/* returns 1 if the process is chrooted */
+extern int proc_chrooted(proc_t);
+/* returns TRUE if a sync EXC_RESOURCE should be sent for the process */
+extern boolean_t proc_send_synchronous_EXC_RESOURCE(proc_t p);
+
+/* this routine returns 1 if the process is running with a 64bit address space, else 0 */
+extern int proc_is64bit(proc_t);
+/* this routine returns 1 if the process is running with a 64bit register state, else 0 */
+extern int proc_is64bit_data(proc_t);
+/* this routine returns 1 if the process is initproc */
+extern int proc_isinitproc(proc_t);
+/* is this process exiting? */
+extern int proc_exiting(proc_t);
+/* returns whether the process has started down proc_exit() */
+extern int proc_in_teardown(proc_t);
+/* this routine returns error if the process is not one with super user privileges */
+int proc_suser(proc_t p);
+/* returns the cred assicaited with the process; temporary api */
+kauth_cred_t proc_ucred(proc_t p);
+/* returns 1 if the process is tainted by uid or gid changes,e else 0 */
+extern int proc_issetugid(proc_t p);
+
+extern int proc_tbe(proc_t);
+
+/*!
+ * @function proc_gettty
+ * @abstract Copies the associated tty vnode for a given process if it exists. The caller needs to decrement the iocount of the vnode.
+ * @return 0 on success. ENOENT if the process has no associated TTY. EINVAL if arguments are NULL or vnode_getwithvid fails.
+ */
+extern int proc_gettty(proc_t p, vnode_t *vp);
+
+/* this routine populates the associated tty device for a given process if it exists, returns 0 on success or else returns EINVAL */
+extern int proc_gettty_dev(proc_t p, dev_t *dev);
+
+/*!
+ * @function proc_selfpgrpid
+ * @abstract Get the process group id for the current process, as with proc_pgrpid().
+ * @return pgrpid of current process.
+ */
+pid_t proc_selfpgrpid(void);
+
+/*!
+ * @function proc_pgrpid
+ * @abstract Get the process group id for the passed-in process.
+ * @param p Process whose pgrpid to grab.
+ * @return pgrpid for "p".
+ */
+pid_t proc_pgrpid(proc_t p);
+
+/*!
+ * @function proc_sessionid
+ * @abstract Get the process session id for the passed-in process.
+ * @param p Process whose session id to grab.
+ * @return session id of current process.
+ */
+pid_t proc_sessionid(proc_t p);
+
+#ifdef KERNEL_PRIVATE
+// mark a process as being allowed to call vfs_markdependency()
+void bsd_set_dependency_capable(task_t task);
+#ifdef __arm__
+static inline int
+IS_64BIT_PROCESS(__unused proc_t p)
+{
+ return 0;
+}
+#else
+extern int IS_64BIT_PROCESS(proc_t);
+#endif /* __arm__ */
+
+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 proc_t proc_parent(proc_t);
+extern void proc_parent_audit_token(proc_t, audit_token_t *);
+extern uint32_t proc_persona_id(proc_t);
+extern uint32_t proc_getuid(proc_t);
+extern uint32_t proc_getgid(proc_t);
+extern int proc_getcdhash(proc_t, unsigned char *);
+
+/*!
+ * @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);