/*
- * Copyright (c) 2000-2007 Apple Inc. All rights reserved.
+ * Copyright (c) 2000-2011 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
#include <kern/assert.h>
#include <sys/codesign.h>
+#if VM_PRESSURE_EVENTS
+#include <kern/vm_pressure.h>
+#endif
+
+#if CONFIG_MEMORYSTATUS
+#include <sys/kern_memorystatus.h>
+#endif
+
#if CONFIG_DTRACE
/* Do not include dtrace.h, it redefines kmem_[alloc/free] */
extern void (*dtrace_fasttrap_exit_ptr)(proc_t);
#include <sys/sdt.h>
extern char init_task_failure_data[];
-void proc_prepareexit(proc_t p, int rv);
+void proc_prepareexit(proc_t p, int rv, boolean_t perf_notify);
void vfork_exit(proc_t p, int rv);
void vproc_exit(proc_t p);
__private_extern__ void munge_user64_rusage(struct rusage *a_rusage_p, struct user64_rusage *a_user_rusage_p);
int waitidcontinue(int result);
int *get_bsduthreadrval(thread_t);
kern_return_t sys_perf_notify(thread_t thread, int pid);
-kern_return_t abnormal_exit_notify(mach_exception_data_type_t code,
- mach_exception_data_type_t subcode);
+kern_return_t task_exception_notify(exception_type_t exception,
+ mach_exception_data_type_t code, mach_exception_data_type_t subcode);
void delay(int);
/*
* NOTE: Source and target may *NOT* overlap!
* XXX Should share code with bsd/dev/ppc/unix_signal.c
*/
-static void
+void
siginfo_user_to_user32(user_siginfo_t *in, user32_siginfo_t *out)
{
out->si_signo = in->si_signo;
out->si_band = in->si_band; /* range reduction */
}
-static void
+void
siginfo_user_to_user64(user_siginfo_t *in, user64_siginfo_t *out)
{
out->si_signo = in->si_signo;
out->si_band = in->si_band; /* range reduction */
}
+static int
+copyoutsiginfo(user_siginfo_t *native, boolean_t is64, user_addr_t uaddr)
+{
+ if (is64) {
+ user64_siginfo_t sinfo64;
+
+ bzero(&sinfo64, sizeof (sinfo64));
+ siginfo_user_to_user64(native, &sinfo64);
+ return (copyout(&sinfo64, uaddr, sizeof (sinfo64)));
+ } else {
+ user32_siginfo_t sinfo32;
+
+ bzero(&sinfo32, sizeof (sinfo32));
+ siginfo_user_to_user32(native, &sinfo32);
+ return (copyout(&sinfo32, uaddr, sizeof (sinfo32)));
+ }
+}
+
/*
* exit --
* Death of process.
*/
int
exit1(proc_t p, int rv, int *retval)
+{
+ return exit1_internal(p, rv, retval, TRUE, TRUE);
+}
+
+int
+exit1_internal(proc_t p, int rv, int *retval, boolean_t thread_can_terminate, boolean_t perf_notify)
{
thread_t self = current_thread();
struct task *task = p->task;
struct uthread *ut;
+ int error = 0;
/*
* If a thread in this task has already
ut = get_bsdthread_info(self);
if (ut->uu_flag & UT_VFORK) {
- vfork_exit(p, rv);
- vfork_return(p , retval, p->p_pid);
- unix_syscall_return(0);
- /* NOT REACHED */
+ if (!thread_can_terminate) {
+ return EINVAL;
+ }
+
+ vfork_exit(p, rv);
+ vfork_return(p , retval, p->p_pid);
+ unix_syscall_return(0);
+ /* NOT REACHED */
}
/*
DTRACE_PROC1(exit, int, CLD_EXITED);
+ /* mark process is going to exit and pull out of DBG/disk throttle */
+ proc_removethrottle(p);
+
+#if CONFIG_MEMORYSTATUS
+ memorystatus_list_remove(p->p_pid);
+#endif
+
proc_lock(p);
- proc_transstart(p, 1);
+ error = proc_transstart(p, 1);
+ if (error == EDEADLK) {
+ /* Temp: If deadlock error, then it implies multithreaded exec is
+ * in progress. Instread of letting exit continue and
+ * corrupting the freed memory, let the exit thread
+ * return. This will save corruption in remote case.
+ */
+ proc_unlock(p);
+ if (current_proc() == p){
+ thread_exception_return();
+ } else {
+ /* external termination like jetsam */
+ return(error);
+ }
+ }
+
while (p->exit_thread != self) {
if (sig_try_locked(p) <= 0) {
proc_transend(p, 1);
return(0);
}
proc_unlock(p);
+
thread_terminate(self);
+ if (!thread_can_terminate) {
+ return 0;
+ }
+
thread_exception_return();
/* NOTREACHED */
}
proc_transend(p, 1);
proc_unlock(p);
- proc_prepareexit(p, rv);
+ proc_prepareexit(p, rv, perf_notify);
/* Last thread to terminate will call proc_exit() */
task_terminate_internal(task);
}
void
-proc_prepareexit(proc_t p, int rv)
+proc_prepareexit(proc_t p, int rv, boolean_t perf_notify)
{
mach_exception_data_type_t code, subcode;
struct uthread *ut;
((ut->uu_exception & 0x0f) << 20) |
((int)ut->uu_code & 0xfffff);
subcode = ut->uu_subcode;
- (void) abnormal_exit_notify(code, subcode);
+ (void) task_exception_notify(EXC_CRASH, code, subcode);
}
skipcheck:
- /* Notify the perf server */
- (void)sys_perf_notify(self, p->p_pid);
+ /* Notify the perf server? */
+ if (perf_notify) {
+ (void)sys_perf_notify(self, p->p_pid);
+ }
/*
* Remove proc from allproc queue and from pidhash chain.
p->p_lflag |= P_LEXIT;
proc_transend(p, 1);
proc_unlock(p);
- proc_prepareexit(p, 0);
+ proc_prepareexit(p, 0, TRUE);
(void) task_terminate_internal(task);
proc_lock(p);
} else {
proc_unlock(p);
pid = p->p_pid;
exitval = p->p_xstat;
- KERNEL_DEBUG_CONSTANT(BSDDBG_CODE(DBG_BSD_PROC, BSD_PROC_EXIT) | DBG_FUNC_START,
- pid, exitval, 0, 0, 0);
+ KERNEL_DEBUG_CONSTANT_IST(KDEBUG_COMMON,
+ BSDDBG_CODE(DBG_BSD_PROC, BSD_PROC_EXIT) | DBG_FUNC_START,
+ pid, exitval, 0, 0, 0);
#if CONFIG_DTRACE
/*
nspace_proc_exit(p);
+#if VM_PRESSURE_EVENTS
+ vm_pressure_proc_cleanup(p);
+#endif
+
/*
* need to cancel async IO requests that can be cancelled and wait for those
* already active. MAY BLOCK!
proc_refdrain(p);
+ /* if any pending cpu limits action, clear it */
+ task_clear_cpuusage(p->task);
+
workqueue_mark_exiting(p);
workqueue_exit(p);
throttle_lowpri_io(FALSE);
}
+#if !CONFIG_EMBEDDED
+ if (p->p_legacy_behavior & PROC_LEGACY_BEHAVIOR_IOTHROTTLE) {
+ throttle_legacy_process_decr();
+ }
+#endif
+
#if SYSV_SHM
/* Close ref SYSV Shared memory*/
if (p->vm_shm)
struct vnode *ttyvp;
int ttyvid;
struct vfs_context context;
- struct tty * tp;
-
+ struct tty *tp;
/*
* Controlling process.
* drain controlling terminal
* and revoke access to controlling terminal.
*/
+ session_lock(sessp);
tp = SESSION_TP(sessp);
-
if ((tp != TTY_NULL) && (tp->t_session == sessp)) {
- tty_pgsignal(tp, SIGHUP, 1);
-
- session_lock(sessp);
- /* reget potentially tp due to revocation */
- tp = SESSION_TP(sessp);
- ttyvp = sessp->s_ttyvp;
- ttyvid = sessp->s_ttyvid;
- sessp->s_ttyvp = NULLVP;
- sessp->s_ttyvid = 0;
- sessp->s_ttyp = TTY_NULL;
- sessp->s_ttypgrpid = NO_PID;
session_unlock(sessp);
- if ((ttyvp != NULLVP) && (vnode_getwithvid(ttyvp, ttyvid) == 0)) {
+ tty_pgsignal(tp, SIGHUP, 1);
- if (tp != TTY_NULL) {
- tty_lock(tp);
- (void) ttywait(tp);
- tty_unlock(tp);
- }
- context.vc_thread = proc_thread(p); /* XXX */
- context.vc_ucred = kauth_cred_proc_ref(p);
- VNOP_REVOKE(ttyvp, REVOKEALL, &context);
- vnode_put(ttyvp);
- kauth_cred_unref(&context.vc_ucred);
- }
- } else {
session_lock(sessp);
- /* reget potentially tp due to revocation */
tp = SESSION_TP(sessp);
- ttyvp = sessp->s_ttyvp;
- sessp->s_ttyvp = NULLVP;
- sessp->s_ttyvid = 0;
- sessp->s_ttyp = TTY_NULL;
- sessp->s_ttypgrpid = NO_PID;
- session_unlock(sessp);
+ }
+ ttyvp = sessp->s_ttyvp;
+ ttyvid = sessp->s_ttyvid;
+ sessp->s_ttyvp = NULLVP;
+ sessp->s_ttyvid = 0;
+ sessp->s_ttyp = TTY_NULL;
+ sessp->s_ttypgrpid = NO_PID;
+ session_unlock(sessp);
+
+ if ((ttyvp != NULLVP) && (vnode_getwithvid(ttyvp, ttyvid) == 0)) {
+ if (tp != TTY_NULL) {
+ tty_lock(tp);
+ (void) ttywait(tp);
+ tty_unlock(tp);
+ }
+ context.vc_thread = proc_thread(p); /* XXX */
+ context.vc_ucred = kauth_cred_proc_ref(p);
+ vnode_rele(ttyvp);
+ VNOP_REVOKE(ttyvp, REVOKEALL, &context);
+ vnode_put(ttyvp);
+ kauth_cred_unref(&context.vc_ucred);
+ ttyvp = NULLVP;
}
if (ttyvp)
vnode_rele(ttyvp);
- /*
- * s_ttyp is not zero'd; we use this to indicate
- * that the session once had a controlling terminal.
- * (for logging and informational purposes)
- */
+ if (tp)
+ ttyfree(tp);
}
-
session_lock(sessp);
sessp->s_leader = NULL;
session_unlock(sessp);
* The write is to an int and is coherent. Also parent is
* keyed off of list lock for reaping
*/
- KERNEL_DEBUG_CONSTANT(BSDDBG_CODE(DBG_BSD_PROC, BSD_PROC_EXIT) | DBG_FUNC_END,
- pid, exitval, 0, 0, 0);
+ KERNEL_DEBUG_CONSTANT_IST(KDEBUG_COMMON,
+ BSDDBG_CODE(DBG_BSD_PROC, BSD_PROC_EXIT) | DBG_FUNC_END,
+ pid, exitval, 0, 0, 0);
p->p_stat = SZOMB;
/*
* The current process can be reaped so, no one
* keyed off of list lock for reaping
*/
proc_list_lock();
- KERNEL_DEBUG_CONSTANT(BSDDBG_CODE(DBG_BSD_PROC, BSD_PROC_EXIT) | DBG_FUNC_END,
- pid, exitval, 0, 0, 0);
+ KERNEL_DEBUG_CONSTANT_IST(KDEBUG_COMMON,
+ BSDDBG_CODE(DBG_BSD_PROC, BSD_PROC_EXIT) | DBG_FUNC_END,
+ pid, exitval, 0, 0, 0);
/* check for sysctl zomb lookup */
while ((p->p_listflag & P_LIST_WAITING) == P_LIST_WAITING) {
msleep(&p->p_stat, proc_list_mlock, PWAIT, "waitcoll", 0);
return (error);
}
+#if DEBUG
+#define ASSERT_LCK_MTX_OWNED(lock) \
+ lck_mtx_assert(lock, LCK_MTX_ASSERT_OWNED)
+#else
+#define ASSERT_LCK_MTX_OWNED(lock) /* nothing */
+#endif
int
waitidcontinue(int result)
int *retval;
if (result)
- return(result);
+ return (result);
thread = current_thread();
vt = get_bsduthreadarg(thread);
retval = get_bsduthreadrval(thread);
- return(waitid(current_proc(), (struct waitid_args *)vt, retval));
+ return (waitid(current_proc(), (struct waitid_args *)vt, retval));
}
/*
*
* Parameters: uap->idtype one of P_PID, P_PGID, P_ALL
* uap->id pid_t or gid_t or ignored
- * uap->infop Address of signinfo_t struct in
+ * uap->infop Address of siginfo_t struct in
* user space into which to return status
* uap->options flag values
*
waitid(proc_t q, struct waitid_args *uap, int32_t *retval)
{
__pthread_testcancel(1);
- return(waitid_nocancel(q, (struct waitid_nocancel_args *)uap, retval));
+ return (waitid_nocancel(q, (struct waitid_nocancel_args *)uap, retval));
}
int
-waitid_nocancel(proc_t q, struct waitid_nocancel_args *uap, __unused int32_t *retval)
+waitid_nocancel(proc_t q, struct waitid_nocancel_args *uap,
+ __unused int32_t *retval)
{
- user_siginfo_t collect64; /* siginfo data to return to caller */
-
+ user_siginfo_t siginfo; /* siginfo data to return to caller */
+ boolean_t caller64 = IS_64BIT_PROCESS(q);
int nfound;
proc_t p;
int error;
- /*
- * Forced validation of options for T.waitpid 21; should be a TSD!
- * This will pass the test, but note that we have more bits than the
- * standard specifies that we will allow in, in this case. The test
- * passes because they light all the bits, not just the ones we allow,
- * and so the following check returns EINVAL like the test wants.
- */
- if (((uap->options & (WNOHANG|WNOWAIT|WCONTINUED|WUNTRACED|WSTOPPED|WEXITED)) != uap->options) ||
- (uap->options == 0))
+ if (uap->options == 0 ||
+ (uap->options & ~(WNOHANG|WNOWAIT|WCONTINUED|WSTOPPED|WEXITED)))
return (EINVAL); /* bits set that aren't recognized */
- /*
- * Overly critical options checking, per POSIX
- */
- switch(uap->idtype) {
+ switch (uap->idtype) {
case P_PID: /* child with process ID equal to... */
case P_PGID: /* child with process group ID equal to... */
if (((int)uap->id) < 0)
loop1:
nfound = 0;
for (p = q->p_children.lh_first; p != 0; p = p->p_sibling.le_next) {
- switch(uap->idtype) {
+
+ switch (uap->idtype) {
case P_PID: /* child with process ID equal to... */
if (p->p_pid != (pid_t)uap->id)
continue;
* the single return for waited process guarantee.
*/
if (p->p_listflag & P_LIST_WAITING) {
- (void)msleep(&p->p_stat, proc_list_mlock, PWAIT, "waitidcoll", 0);
+ (void) msleep(&p->p_stat, proc_list_mlock,
+ PWAIT, "waitidcoll", 0);
goto loop1;
}
p->p_listflag |= P_LIST_WAITING; /* mark busy */
nfound++;
- /*
- * Types of processes we are interested in
- *
- * XXX Don't know what to do for WCONTINUED?!?
- */
- switch(p->p_stat) {
+ bzero(&siginfo, sizeof (siginfo));
+
+ switch (p->p_stat) {
case SZOMB: /* Exited */
if (!(uap->options & WEXITED))
break;
-
- /* drop the lock and the thread is going to return */
proc_list_unlock();
+#if CONFIG_MACF
+ if ((error = mac_proc_check_wait(q, p)) != 0)
+ goto out;
+#endif
+ siginfo.si_signo = SIGCHLD;
+ siginfo.si_pid = p->p_pid;
+ siginfo.si_status = WEXITSTATUS(p->p_xstat);
+ if (WIFSIGNALED(p->p_xstat)) {
+ siginfo.si_code = WCOREDUMP(p->p_xstat) ?
+ CLD_DUMPED : CLD_KILLED;
+ } else
+ siginfo.si_code = CLD_EXITED;
- /* Collect "siginfo" information for caller */
- collect64.si_signo = SIGCHLD;
- collect64.si_code = 0;
- collect64.si_errno = 0;
- collect64.si_pid = 0;
- collect64.si_uid = 0;
- collect64.si_addr = 0;
- collect64.si_status = WEXITSTATUS(p->p_xstat);
- collect64.si_band = 0;
-
- if (IS_64BIT_PROCESS(p)) {
- user64_siginfo_t sinfo64;
-
- siginfo_user_to_user64(&collect64, &sinfo64);
-
- error = copyout((caddr_t)&sinfo64,
- uap->infop,
- sizeof(sinfo64));
- } else {
- user32_siginfo_t sinfo32;
-
- siginfo_user_to_user32(&collect64, &sinfo32);
-
- error = copyout((caddr_t)&sinfo32,
- uap->infop,
- sizeof(sinfo32));
- }
- /* information unavailable? */
- if (error)
+ if ((error = copyoutsiginfo(&siginfo,
+ caller64, uap->infop)) != 0)
goto out;
/* Prevent other process for waiting for this event? */
if (!(uap->options & WNOWAIT)) {
- /* Clean up */
- (void)reap_child_locked(q, p, 0, 0, 0);
- } else {
- proc_list_lock();
- p->p_listflag &= ~P_LIST_WAITING;
- proc_list_unlock();
+ (void) reap_child_locked(q, p, 0, 0, 0);
+ return (0);
}
-
- return (0);
+ goto out;
case SSTOP: /* Stopped */
/*
*/
if ((p->p_lflag & P_LWAITED) != 0)
break;
-
- /* drop the lock and the thread is going to return */
proc_list_unlock();
+#if CONFIG_MACF
+ if ((error = mac_proc_check_wait(q, p)) != 0)
+ goto out;
+#endif
+ siginfo.si_signo = SIGCHLD;
+ siginfo.si_pid = p->p_pid;
+ siginfo.si_status = p->p_xstat; /* signal number */
+ siginfo.si_code = CLD_STOPPED;
- /* Collect "siginfo" information for caller */
- collect64.si_signo = SIGCHLD;
- collect64.si_code = 0;
- collect64.si_errno = 0;
- collect64.si_pid = 0;
- collect64.si_uid = 0;
- collect64.si_addr = 0;
- proc_lock(p);
- collect64.si_status = p->p_xstat;
- proc_unlock(p);
- collect64.si_band = 0;
-
- if (IS_64BIT_PROCESS(p)) {
- user64_siginfo_t sinfo64;
-
- siginfo_user_to_user64(&collect64, &sinfo64);
-
- error = copyout((caddr_t)&sinfo64,
- uap->infop,
- sizeof(sinfo64));
- } else {
- user32_siginfo_t sinfo32;
-
- siginfo_user_to_user32(&collect64, &sinfo32);
-
- error = copyout((caddr_t)&sinfo32,
- uap->infop,
- sizeof(sinfo32));
- }
- /* information unavailable? */
- if (error)
+ if ((error = copyoutsiginfo(&siginfo,
+ caller64, uap->infop)) != 0)
goto out;
/* Prevent other process for waiting for this event? */
p->p_lflag |= P_LWAITED;
proc_unlock(p);
}
-
- error = 0;
goto out;
- default: /* All others */
- /* ...meaning Continued */
+ default: /* All other states => Continued */
if (!(uap->options & WCONTINUED))
break;
*/
if ((p->p_flag & P_CONTINUED) == 0)
break;
-
- /* drop the lock and the thread is going to return */
proc_list_unlock();
-
- /* Collect "siginfo" information for caller */
+#if CONFIG_MACF
+ if ((error = mac_proc_check_wait(q, p)) != 0)
+ goto out;
+#endif
+ siginfo.si_signo = SIGCHLD;
+ siginfo.si_code = CLD_CONTINUED;
proc_lock(p);
- collect64.si_signo = SIGCHLD;
- collect64.si_code = CLD_CONTINUED;
- collect64.si_errno = 0;
- collect64.si_pid = p->p_contproc;
- collect64.si_uid = 0;
- collect64.si_addr = 0;
- collect64.si_status = p->p_xstat;
- collect64.si_band = 0;
+ siginfo.si_pid = p->p_contproc;
+ siginfo.si_status = p->p_xstat;
proc_unlock(p);
- if (IS_64BIT_PROCESS(p)) {
- user64_siginfo_t sinfo64;
-
- siginfo_user_to_user64(&collect64, &sinfo64);
-
- error = copyout((caddr_t)&sinfo64,
- uap->infop,
- sizeof(sinfo64));
- } else {
- user32_siginfo_t sinfo32;
-
- siginfo_user_to_user32(&collect64, &sinfo32);
-
- error = copyout((caddr_t)&sinfo32,
- uap->infop,
- sizeof(sinfo32));
- }
- /* information unavailable? */
- if (error)
+ if ((error = copyoutsiginfo(&siginfo,
+ caller64, uap->infop)) != 0)
goto out;
/* Prevent other process for waiting for this event? */
if (!(uap->options & WNOWAIT)) {
- OSBitAndAtomic(~((uint32_t)P_CONTINUED), &p->p_flag);
+ OSBitAndAtomic(~((uint32_t)P_CONTINUED),
+ &p->p_flag);
}
-
- error = 0;
goto out;
}
- /* LIST LOCK IS HELD HERE */
+ ASSERT_LCK_MTX_OWNED(proc_list_mlock);
+
/* Not a process we are interested in; go on to next child */
-
+
p->p_listflag &= ~P_LIST_WAITING;
wakeup(&p->p_stat);
}
+ ASSERT_LCK_MTX_OWNED(proc_list_mlock);
- /* list lock is always held */
/* No child processes that could possibly satisfy the request? */
+
if (nfound == 0) {
proc_list_unlock();
return (ECHILD);
if (uap->options & WNOHANG) {
proc_list_unlock();
+#if CONFIG_MACF
+ if ((error = mac_proc_check_wait(q, p)) != 0)
+ return (error);
+#endif
+ /*
+ * The state of the siginfo structure in this case
+ * is undefined. Some implementations bzero it, some
+ * (like here) leave it untouched for efficiency.
+ *
+ * Thus the most portable check for "no matching pid with
+ * WNOHANG" is to store a zero into si_pid before
+ * invocation, then check for a non-zero value afterwards.
+ */
return (0);
}
- if ((error = msleep0((caddr_t)q, proc_list_mlock, PWAIT | PCATCH | PDROP, "waitid", 0, waitidcontinue)))
+ if ((error = msleep0(q, proc_list_mlock,
+ PWAIT | PCATCH | PDROP, "waitid", 0, waitidcontinue)) != 0)
return (error);
goto loop;
*/
fdfree(p);
+#if !CONFIG_EMBEDDED
+ if (p->p_legacy_behavior & PROC_LEGACY_BEHAVIOR_IOTHROTTLE) {
+ throttle_legacy_process_decr();
+ }
+#endif
+
sessp = proc_session(p);
if (SESS_LEADER(p, sessp)) {
struct vnode *ttyvp;
int ttyvid;
struct vfs_context context;
- struct tty * tp;
+ struct tty *tp;
/*
* Controlling process.
* drain controlling terminal
* and revoke access to controlling terminal.
*/
+ session_lock(sessp);
tp = SESSION_TP(sessp);
-
if ((tp != TTY_NULL) && (tp->t_session == sessp)) {
+ session_unlock(sessp);
+
tty_pgsignal(tp, SIGHUP, 1);
- tty_lock(tp);
- (void) ttywait(tp);
- tty_unlock(tp);
- /*
- * The tty could have been revoked
- * if we blocked.
- */
session_lock(sessp);
- /* reget in case of race */
tp = SESSION_TP(sessp);
- ttyvp = sessp->s_ttyvp;
- ttyvid = sessp->s_ttyvid;
- sessp->s_ttyvp = NULL;
- sessp->s_ttyvid = 0;
- sessp->s_ttyp = TTY_NULL;
- sessp->s_ttypgrpid = NO_PID;
- session_unlock(sessp);
-
- if ((ttyvp != NULLVP) && (vnode_getwithvid(ttyvp, ttyvid) == 0)) {
- context.vc_thread = proc_thread(p); /* XXX */
- context.vc_ucred = kauth_cred_proc_ref(p);
- VNOP_REVOKE(ttyvp, REVOKEALL, &context);
- vnode_put(ttyvp);
- kauth_cred_unref(&context.vc_ucred);
+ }
+ ttyvp = sessp->s_ttyvp;
+ ttyvid = sessp->s_ttyvid;
+ sessp->s_ttyvp = NULL;
+ sessp->s_ttyvid = 0;
+ sessp->s_ttyp = TTY_NULL;
+ sessp->s_ttypgrpid = NO_PID;
+ session_unlock(sessp);
+
+ if ((ttyvp != NULLVP) && (vnode_getwithvid(ttyvp, ttyvid) == 0)) {
+ if (tp != TTY_NULL) {
+ tty_lock(tp);
+ (void) ttywait(tp);
+ tty_unlock(tp);
}
- } else {
- session_lock(sessp);
- ttyvp = sessp->s_ttyvp;
- sessp->s_ttyvp = NULL;
- sessp->s_ttyvid = 0;
- sessp->s_ttyp = TTY_NULL;
- sessp->s_ttypgrpid = NO_PID;
- session_unlock(sessp);
+ context.vc_thread = proc_thread(p); /* XXX */
+ context.vc_ucred = kauth_cred_proc_ref(p);
+ vnode_rele(ttyvp);
+ VNOP_REVOKE(ttyvp, REVOKEALL, &context);
+ vnode_put(ttyvp);
+ kauth_cred_unref(&context.vc_ucred);
+ ttyvp = NULLVP;
}
if (ttyvp)
vnode_rele(ttyvp);
- /*
- * s_ttyp is not zero'd; we use this to indicate
- * that the session once had a controlling terminal.
- * (for logging and informational purposes)
- */
+ if (tp)
+ ttyfree(tp);
}
-
session_lock(sessp);
sessp->s_leader = NULL;
session_unlock(sessp);
#ifdef FIXME
if (task) {
- task_basic_info_data_t tinfo;
+ mach_task_basic_info_data_t tinfo;
task_thread_times_info_data_t ttimesinfo;
int task_info_stuff, task_ttimes_stuff;
struct timeval ut,st;
- task_info_stuff = TASK_BASIC_INFO_COUNT;
- task_info(task, TASK_BASIC_INFO,
+ task_info_stuff = MACH_TASK_BASIC_INFO_COUNT;
+ task_info(task, MACH_TASK_BASIC_INFO,
&tinfo, &task_info_stuff);
p->p_ru->ru_utime.tv_sec = tinfo.user_time.seconds;
p->p_ru->ru_utime.tv_usec = tinfo.user_time.microseconds;
projects / apple / xnu.git / blobdiff