Fix up markup etc. in recently born manpage.

5 files changed, 316 insertions, 152 deletions

diff --git a/lib/libc/sys/sigqueue.2 b/lib/libc/sys/sigqueue.2
index 3f5dbac..e68a7f7 100644
--- a/lib/libc/sys/sigqueue.2
+++ b/lib/libc/sys/sigqueue.2
@@ -1,4 +1,4 @@
-.\" Copyright (c) 2005 David Xu <davidxu@freebsd.org>
+.\" Copyright (c) 2005 David Xu <davidxu@FreeBSD.org>
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -27,12 +27,12 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd Nov 11, 2005
+.Dd November 11, 2005
 .Dt SIGQUEUE 2
 .Os
 .Sh NAME
 .Nm sigqueue
-.Nd queue a signal to a process (REALTIME)
+.Nd "queue a signal to a process (REALTIME)"
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
@@ -42,7 +42,7 @@
 .Sh DESCRIPTION
 The
 .Fn sigqueue
-function causes the signal specified by
+system call causes the signal specified by
 .Fa signo
 to be sent with the value specified by
 .Fa value
@@ -51,18 +51,24 @@ to the process specified by
 If
 .Fa signo
 is zero (the null signal), error checking is performed but
-no signal is actually sent. The null signal can be used to check the
-validity of pid.
+no signal is actually sent.
+The null signal can be used to check the
+validity of PID.
 .Pp
 The conditions required for a process to have permission to queue a
 signal to another process are the same as for the
-.Fn kill
-function.
+.Xr kill 2
+system call.
 The
 .Fn sigqueue
-function queues a signal to a single process specified by the pid argument.
+system call queues a signal to a single process specified by the
+.Fa pid
+argument.
 .Pp
-The sigqueue() function returns immediately. If the resources were
+The
+.Fn sigqueue
+system call returns immediately.
+If the resources were
 available to queue the signal, the signal will be queued and sent to
 the receiving process.
 .Pp
@@ -76,31 +82,36 @@ is not blocked for the calling thread and if no other thread has
 .Fa signo
 unblocked or is waiting in a
 .Fn sigwait
-function for
+system call for
 .Fa signo ,
 either
 .Fa signo
 or at least the pending, unblocked signal will be delivered to the
-calling thread before the
+calling thread before
 .Fn sigqueue
-function returns. Should any multiple pending signals in the range
-SIGRTMIN to SIGRTMAX be selected for delivery, it is the lowest numbered
-one. The selection order between realtime and non-realtime signals, or
+returns.
+Should any multiple pending signals in the range
+.Dv SIGRTMIN
+to
+.Dv SIGRTMAX
+be selected for delivery, it is the lowest numbered
+one.
+The selection order between realtime and non-realtime signals, or
 between multiple pending non-realtime signals, is unspecified.
 .Sh RETURN VALUES
-Upon successful completion, the specified signal has been queued, and
-the
-.Fn sigqueue
-function returns a value of zero. Otherwise, the function returns a value
-of -1 and set errno to indicate the error.
+.Rv -std
 .Sh ERRORS
 The
 .Fn sigqueue
+system call
 will fail if:
 .Bl -tag -width Er
 .It Bq Er EAGAIN
-No resources are available to queue the signal. The process has already
-queued {SIGQUEUE_MAX} signals that are still pending at the receiver(s),
+No resources are available to queue the signal.
+The process has already
+queued
+.Brq Dv SIGQUEUE_MAX
+signals that are still pending at the receiver(s),
 or a system-wide resource limit has been exceeded.
 .It Bq Er EINVAL
 The value of the
@@ -110,20 +121,22 @@ argument is an invalid or unsupported signal number.
 The process does not have the appropriate privilege to send the signal
 to the receiving process.
 .It Bq Er ESRCH
-The process pid does not exist.
+The process
+.Fa pid
+does not exist.
 .El
 .Sh SEE ALSO
-.Xr sigwait 2 ,
-.Xr sigtimedwait 2 ,
-.Xr sigwaitinfo 2 ,
-.Xr sigqueue 2 ,
 .Xr sigaction 2 ,
 .Xr sigpending 2 ,
+.Xr sigqueue 2 ,
 .Xr sigsuspend 2 ,
+.Xr sigtimedwait 2 ,
+.Xr sigwait 2 ,
+.Xr sigwaitinfo 2 ,
 .Xr pause 3 ,
 .Xr pthread_sigmask 3
 .Sh STANDARDS
 The
 .Fn sigqueue
-function conforms to
+system call conforms to
 .St -p1003.1-96 .
diff --git a/lib/libc/sys/sigwaitinfo.2 b/lib/libc/sys/sigwaitinfo.2
index ca091b4..768e44c 100644
--- a/lib/libc/sys/sigwaitinfo.2
+++ b/lib/libc/sys/sigwaitinfo.2
@@ -1,4 +1,4 @@
-.\" Copyright (c) 2005 David Xu <davidxu@freebsd.org>
+.\" Copyright (c) 2005 David Xu <davidxu@FreeBSD.org>
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -27,61 +27,68 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd Nov 11, 2005
+.Dd November 11, 2005
 .Dt SIGTIMEDWAIT 2
 .Os
 .Sh NAME
-.Nm sigtimedwait,
-.Nm sigwaitinfo 
-.Nd wait for queued signals (REALTIME)
+.Nm sigtimedwait , sigwaitinfo
+.Nd "wait for queued signals (REALTIME)"
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
 .In signal.h
 .Ft int
-.Fn sigtimedwait "const sigset_t *restrict set" "siginfo_t *restrict info" "const struct timespec *restrict timeout"
+.Fo sigtimedwait
+.Fa "const sigset_t *restrict set" "siginfo_t *restrict info"
+.Fa "const struct timespec *restrict timeout"
+.Fc
 .Ft int
 .Fn sigwaitinfo "const sigset_t * restrict set" "siginfo_t * restrict info"
 .Sh DESCRIPTION
 The
 .Fn sigtimedwait
-function is equivalent to
+system call is equivalent to
 .Fn sigwaitinfo
 except that if none of the signals specified by
 .Fa set
 are pending,
-.Fn
-sigtimedwait
+.Fn sigtimedwait
 waits for the time interval specified in the
-.Sy
-timespec
+.Vt timespec
 structure referenced by
 .Fa timeout .
 If the
-.Sy
-timespec
+.Vt timespec
 structure pointed to by
 .Fa timeout
 is zero-valued and if none of the signals specified by
 .Fa set
 are pending, then
 .Fn sigtimedwait
-returns immediately with an error. If
+returns immediately with an error.
+If
 .Fa timeout
-is the NULL pointer, the behavior is unspecified. CLOCK_MONOTONIC
+is the
+.Dv NULL
+pointer, the behavior is unspecified.
+.Dv CLOCK_MONOTONIC
 clock is used to measure the time interval specified by the
 .Fa timeout
 argument.
 .Pp
 The
 .Fn sigwaitinfo
-function selects the pending signal from the set specified by
+system call selects the pending signal from the set specified by
 .Fa set .
-Should any of multiple pending signals in the range SIGRTMIN to
-SIGRTMAX be selected, it shall be the lowest numbered one. The
+Should any of multiple pending signals in the range
+.Dv SIGRTMIN
+to
+.Dv SIGRTMAX
+be selected, it shall be the lowest numbered one.
+The
 selection order between realtime and non-realtime signals, or
 between multiple pending non-realtime signals, is unspecified.
-If no signal in 
+If no signal in
 .Fa set
 is pending at the time of the call, the calling thread
 is suspended until one or more signals in
@@ -90,37 +97,57 @@ become pending or until it is interrupted by an unblocked, caught signal.
 .Pp
 The
 .Fn sigwaitinfo
-function is equivalent to the
+system call is equivalent to the
 .Fn sigwait
-function if the
+system call if the
 .Fa info
-argument is NULL. If the
+argument is
+.Dv NULL .
+If the
 .Fa info
-argument is non-NULL, the
+argument is
+.Pf non- Dv NULL ,
+the
 .Fn sigwaitinfo
 function is equivalent to
 .Fn sigwait ,
 except that the selected signal number shall be stored in the
-si_signo member, and the cause of the signal shall be stored in the si_code
-member. If any value is queued to the selected signal, the first such queued
-value is dequeued and, if the info argument is non-NULL, the value is stored
-in the si_value member of info. The system resource used to queue the signal
-is released and returned to the system for other use. If no value is queued,
-the content of the si_value member is zero-valued. If no further signals are
+.Va si_signo
+member, and the cause of the signal shall be stored in the
+.Va si_code
+member.
+If any value is queued to the selected signal, the first such queued
+value is dequeued and, if the info argument is
+.Pf non- Dv NULL ,
+the value is stored in the
+.Va si_value
+member of
+.Fa info .
+The system resource used to queue the signal
+is released and returned to the system for other use.
+If no value is queued,
+the content of the
+.Va si_value
+member is zero-valued.
+If no further signals are
 queued for the selected signal, the pending indication for that signal
 is reset.
 .Sh RETURN VALUES
 Upon successful completion (that is, one of the signals specified by
 .Fa set
-is pending or is generated) 
+is pending or is generated)
 .Fn sigwaitinfo
 and
 .Fn sigtimedwait
-return the selected signal number. Otherwise, the function return a value of -1
-and set errno to indicate the error.
+return the selected signal number.
+Otherwise, the functions return a value of \-1
+and set the global variable
+.Va errno
+to indicate the error.
 .Sh ERRORS
 The
 .Fn sigtimedwait
+system call
 will fail if:
 .Bl -tag -width Er
 .It Bq Er EAGAIN
@@ -131,7 +158,7 @@ The
 .Fn sigtimedwait
 and
 .Fn sigwaitinfo
-functions fail if:
+system calls fail if:
 .Bl -tag -width Er
 .It Bq Er EINTR
 The wait was interrupted by an unblocked, caught signal.
@@ -142,22 +169,24 @@ memory protection fault.
 .El
 The
 .Fn sigtimedwait
-function may also fail if:
+system call may also fail if:
 .Bl -tag -width Er
 .It Bq Er EINVAL
 The
 .Fa timeout
-argument specified a tv_nsec value less than zero or greater than or equal
+argument specified a
+.Va tv_nsec
+value less than zero or greater than or equal
 to 1000 million.
 Kernel only checks for this error if no signal is pending in set and it
 is necessary to wait.
 .El
 .Sh SEE ALSO
-.Xr sigwait 2 ,
-.Xr sigqueue 2 ,
 .Xr sigaction 2 ,
 .Xr sigpending 2 ,
+.Xr sigqueue 2 ,
 .Xr sigsuspend 2 ,
+.Xr sigwait 2 ,
 .Xr pause 3 ,
 .Xr pthread_sigmask 3
 .Sh STANDARDS
@@ -165,5 +194,5 @@ The
 .Fn sigtimedwait
 and
 .Fn sigwaitinfo
-functions conform to
+system calls conform to
 .St -p1003.1-96 .
diff --git a/lib/libc/sys/timer_create.2 b/lib/libc/sys/timer_create.2
index 1ac0e57..95ac55b 100644
--- a/lib/libc/sys/timer_create.2
+++ b/lib/libc/sys/timer_create.2
@@ -1,4 +1,4 @@
-.\" Copyright (c) 2005 David Xu <davidxu@freebsd.org>
+.\" Copyright (c) 2005 David Xu <davidxu@FreeBSD.org>
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -27,28 +27,34 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd Sep 11, 2000
+.Dd September 11, 2000
 .Dt TIMER_CREATE 2
 .Os
 .Sh NAME
 .Nm timer_create
-.Nd create a per-process timer (REALTIME)
+.Nd "create a per-process timer (REALTIME)"
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
 .In time.h
 .Ft int
-.Fn timer_create "clockid_t clockid" "struct sigevent *restrict evp" "timer_t *restrict timerid"
+.Fo timer_create
+.Fa "clockid_t clockid" "struct sigevent *restrict evp"
+.Fa "timer_t *restrict timerid"
+.Fc
 .Sh DESCRIPTION
 The
 .Fn timer_create
-function creates a per-process timer using the specified clock,
+system call creates a per-process timer using the specified clock,
 .Fa clock_id ,
-as the timing base. The
+as the timing base.
+The
 .Fn timer_create
-function returns, in the location referenced by
+system call returns, in the location referenced by
 .Fa timerid ,
-a timer ID of type timer_t used to identify the timer in timer requests.
+a timer ID of type
+.Vt timer_t
+used to identify the timer in timer requests.
 This timer ID is unique within the calling process until the timer is deleted.
 The particular clock,
 .Fa clock_id ,
@@ -59,19 +65,51 @@ The timer whose ID is returned is in a disarmed state upon return from
 .Pp
 The
 .Fa evp
-argument, if non-NULL, points to a sigevent structure. This structure,
+argument, if
+.Pf non- Dv NULL ,
+points to a
+.Vt sigevent
+structure.
+This structure,
 allocated by the application, defines the asynchronous notification to occur
-when the timer expires. If the
+when the timer expires.
+If the
+.Fa evp
+argument is
+.Dv NULL ,
+the effect is as if the
 .Fa evp
-argument is NULL, the effect is as if the evp argument pointed to a sigevent
-structure with the sigev_notify member having the value SIGEV_SIGNAL, the
-sigev_signo having a default signal number, and the sigev_value member having
+argument pointed to a
+.Vt sigevent
+structure with the
+.Va sigev_notify
+member having the value
+.Dv SIGEV_SIGNAL ,
+the
+.Va sigev_signo
+having a default signal number, and the
+.Va sigev_value
+member having
 the value of the timer ID.
 .Pp
-The implementations supports a clock_id of CLOCK_REALTIME or CLOCK_MONOTONIC.
+The implementations supports a
+.Fa clock_id
+of
+.Dv CLOCK_REALTIME
+or
+.Dv CLOCK_MONOTONIC .
 .Pp
-If evp->sigev_sigev_notify is SIGEV_THREAD and sev->sigev_notify_attributes
-is not NULL, if the attribute pointed to by sev->sigev_notify_attributes has
+If
+.Fa evp->sigev_sigev_notify
+is
+.Dv SIGEV_THREAD
+and
+.Fa sev->sigev_notify_attributes
+is not
+.Dv NULL ,
+if the attribute pointed to by
+.Fa sev->sigev_notify_attributes
+has
 a thread stack address specified by a call to
 .Fn pthread_attr_setstack
 or
@@ -80,19 +118,29 @@ the results are unspecified if the signal is generated more than once.
 .Sh RETURN VALUES
 If the call succeeds,
 .Fn timer_create
-returns zero and update the location referenced by
+returns zero and updates the location referenced by
+.Fa timerid
+to a
+.Vt timer_t ,
+which can be passed to the per-process timer calls.
+If an error
+occurs, the system call returns a value of \-1
+and the global variable
+.Va errno
+is set to indicate the
+error.
+The value of
 .Fa timerid
-to a timer_t, which can be passed to the per-process timer calls. If an error
-occurs, the function shall return a value of -1 and set errno to indicate the
-error. The value of timerid is undefined if an error occurs.
+is undefined if an error occurs.
 .Sh ERRORS
 The
 .Fn timer_create
+system call
 will fail if:
 .Bl -tag -width Er
 .It Bq Er EAGAIN
 The calling process has already created all of the timers it is allowed by
-this implementation
+this implementation.
 .It Bq Er EINVAL
 The specified clock ID is not supported.
 .It Bq Er EFAULT
@@ -106,5 +154,5 @@ memory protection fault.
 .Sh STANDARDS
 The
 .Fn timer_create
-function conforms to
+system call conforms to
 .St -p1003.1-96 .
diff --git a/lib/libc/sys/timer_delete.2 b/lib/libc/sys/timer_delete.2
index b9135df..f1035b8 100644
--- a/lib/libc/sys/timer_delete.2
+++ b/lib/libc/sys/timer_delete.2
@@ -1,4 +1,4 @@
-.\" Copyright (c) 2005 David Xu <davidxu@freebsd.org>
+.\" Copyright (c) 2005 David Xu <davidxu@FreeBSD.org>
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -27,12 +27,12 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd Sep 11, 2000
+.Dd September 11, 2000
 .Dt TIMER_DELETE 2
 .Os
 .Sh NAME
 .Nm timer_delete
-.Nd delete a per-process timer (REALTIME)
+.Nd "delete a per-process timer (REALTIME)"
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
@@ -42,31 +42,34 @@
 .Sh DESCRIPTION
 The
 .Fn timer_delete
+system call
 deletes the specified timer,
 .Fa timerid ,
 previously created by the
-.Fn timer_create
-function. If the timer is armed when
+.Xr timer_create 2
+system call.
+If the timer is armed when
 .Fn timer_delete
 is called, the behavior is as if the timer is automatically disarmed before
-removal. Pending signals for the deleted timer is cleared.
+removal.
+Pending signals for the deleted timer are cleared.
 .Sh RETURN VALUES
-If successful, the
-.Fn timer_delete
-function shall return a value of zero. Otherwise, the function shall return
-a value of -1 and set errno to indicate the error.
+.Rv -std
 .Sh ERRORS
 The
 .Fn timer_delete
+system call
 will fail if:
 .Bl -tag -width Er
 .It Bq Er EINVAL
-The timer ID specified by timerid is not a valid timer ID.
+The timer ID specified by
+.Fa timerid
+is not a valid timer ID.
 .El
 .Sh SEE ALSO
 .Xr timer_create 2
 .Sh STANDARDS
 The
 .Fn timer_delete
-function conforms to
+system call conforms to
 .St -p1003.1-96 .
diff --git a/lib/libc/sys/timer_settime.2 b/lib/libc/sys/timer_settime.2
index 2f4866c..74743b7 100644
--- a/lib/libc/sys/timer_settime.2
+++ b/lib/libc/sys/timer_settime.2
@@ -1,4 +1,4 @@
-.\" Copyright (c) 2005 David Xu <davidxu@freebsd.org>
+.\" Copyright (c) 2005 David Xu <davidxu@FreeBSD.org>
 .\" All rights reserved.
 .\"
 .\" Redistribution and use in source and binary forms, with or without
@@ -27,14 +27,14 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd Sep 11, 2000
+.Dd September 11, 2000
 .Dt TIMER_SETTIME 2
 .Os
 .Sh NAME
-.Nm timer_getoverrun
-.Nm timer_gettime
+.Nm timer_getoverrun ,
+.Nm timer_gettime ,
 .Nm timer_settime
-.Nd per-process timers (REALTIME)
+.Nd "per-process timers (REALTIME)"
 .Sh LIBRARY
 .Lb libc
 .Sh SYNOPSIS
@@ -44,108 +44,169 @@
 .Ft int
 .Fn timer_gettime "timer_t timerid" "struct itimerspec *value"
 .Ft int
-.Fn timer_settime "timer_t timerid" "int flags" "const struct itimerspec *restrict value" "struct itimerspec *restrict ovalue"
+.Fo timer_settime
+.Fa "timer_t timerid" "int flags" "const struct itimerspec *restrict value"
+.Fa "struct itimerspec *restrict ovalue"
+.Fc
 .Sh DESCRIPTION
 The
 .Fn timer_gettime
-function stores the amount of time until the specified timer,
+system call stores the amount of time until the specified timer,
 .Fa timerid ,
 expires and the reload value of the timer into the space pointed to by the
 .Fa value
-argument. The it_value member of this structure contains the amount of time
-before the timer expires, or zero if the timer is disarmed. This value is
+argument.
+The
+.Va it_value
+member of this structure contains the amount of time
+before the timer expires, or zero if the timer is disarmed.
+This value is
 returned as the interval until timer expiration, even if the timer was armed
-with absolute time. The it_interval member of value contains the reload
+with absolute time.
+The
+.Va it_interval
+member of
+.Fa value
+contains the reload
 value last set by
 .Fn timer_settime .
 .Pp
 The
 .Fn timer_settime
-function sets the time until the next expiration of the timer specified
+system call sets the time until the next expiration of the timer specified
 by
 .Fa timerid
-from the it_value member of the value argument and arm the timer if the
-it_value member of value is non-zero. If the specified timer was already
+from the
+.Va it_value
+member of the
+.Fa value
+argument and arms the timer if the
+.Va it_value
+member of
+.Fa value
+is non-zero.
+If the specified timer was already
 armed when
 .Fn timer_settime
 is called, this call resets the time until next expiration to the value
-specified. If the it_value member of value is zero, the timer is disarmed.
+specified.
+If the
+.Va it_value
+member of
+.Fa value
+is zero, the timer is disarmed.
 If the timer is disarmed, then pending signal is removed.
 .Pp
-If the flag TIMER_ABSTIME is not set in the argument
+If the flag
+.Dv TIMER_ABSTIME
+is not set in the argument
 .Fa flags ,
 .Fn timer_settime
 behaves as if the time until next expiration is set to
-be equal to the interval specified by the it_value member of value. That is,
-the timer expires in it_value nanoseconds from when the call is made. If the
-flag TIMER_ABSTIME is set in the argument flags,
+be equal to the interval specified by the
+.Va it_value
+member of
+.Fa value .
+That is,
+the timer expires in
+.Va it_value
+nanoseconds from when the call is made.
+If the flag
+.Dv TIMER_ABSTIME
+is set in the argument
+.Fa flags ,
 .Fn timer_settime
 behaves as if the time until next expiration is set to be equal to the
 difference between the absolute time specified by the it_value member of
 value and the current value of the clock associated with
 .Fa timerid .
 That is, the timer expires when the clock reaches the value specified by the
-it_value member of value. If the specified time has already passed, the
-function succeeds and the expiration notification is made.
+.Va it_value
+member of
+.Fa value .
+If the specified time has already passed, the
+system call succeeds and the expiration notification is made.
 .Pp
-The reload value of the timer is set to the value specified by the it_interval
-member of value. When a timer is armed with a non-zero it_interval, a periodic
+The reload value of the timer is set to the value specified by the
+.Va it_interval
+member of
+.Fa value .
+When a timer is armed with a non-zero
+.Va it_interval ,
+a periodic
 (or repetitive) timer is specified.
 .Pp
 Time values that are between two consecutive non-negative integer multiples of
-the resolution of the specified timer is rounded up to the larger multiple of
-the resolution. Quantization error will not cause the timer to expire earlier
+the resolution of the specified timer are rounded up to the larger multiple of
+the resolution.
+Quantization error will not cause the timer to expire earlier
 than the rounded time value.
 .Pp
-If the argument ovalue is not NULL, the
+If the argument
+.Fa ovalue
+is not
+.Dv NULL ,
+the
 .Fn timer_settime
-function stores, in the location referenced by ovalue, a value representing
+system call stores, in the location referenced by
+.Fa ovalue ,
+a value representing
 the previous amount of time before the timer would have expired, or zero if the
-timer was disarmed, together with the previous timer reload value. Timers is not
+timer was disarmed, together with the previous timer reload value.
+Timers do not
 expire before their scheduled time.
 .Pp
 Only a single signal is queued to the process for a given timer at any point in
-time. When a timer for which a signal is still pending expires, no signal is
-queued, and a timer overrun will occur. When a timer expiration signal is
+time.
+When a timer for which a signal is still pending expires, no signal is
+queued, and a timer overrun will occur.
+When a timer expiration signal is
 accepted by a process, the
 .Fn timer_getoverrun
-function returns the timer expiration overrun count for the specified timer.
+system call returns the timer expiration overrun count for the specified timer.
 The overrun count returned contains the number of extra timer expirations that
 occurred between the time the signal was generated (queued) and when it was
-accepted, up to but not including an maximum of {DELAYTIMER_MAX}. If the number of
-such extra expirations is greater than or equal to {DELAYTIMER_MAX}, then the
-overrun count is set to {DELAYTIMER_MAX}. The value returned by
+accepted, up to but not including an maximum of
+.Brq Dv DELAYTIMER_MAX .
+If the number of
+such extra expirations is greater than or equal to
+.Brq Dv DELAYTIMER_MAX ,
+then the overrun count is set to
+.Brq Dv DELAYTIMER_MAX .
+The value returned by
 .Fn timer_getoverrun
-applies to the most recent expiration signal acceptance for the timer. If no
+applies to the most recent expiration signal acceptance for the timer.
+If no
 expiration signal has been delivered for the timer, the return value of
 .Fn timer_getoverrun
 is unspecified.
 .Sh RETURN VALUES
 If the
 .Fn timer_getoverrun
-function succeeds, it returns the timer expiration overrun count as explained
+system call succeeds, it returns the timer expiration overrun count as explained
 above.
+Otherwise the value \-1 is returned, and the global variable
+.Va errno
+is set to indicate the error.
 .Pp
-If the
-.Fn timer_gettime
-or
-.Fn timer_settime
-functions succeed, a value of 0 is returned.
-.Pp
-If an error occurs for any of these functions, the value -1 is returned, and
-errno set to indicate the error.
+.Rv -std timer_gettime timer_settime
 .Sh ERRORS
 The
 .Fn timer_settime
+system call
 will fail if:
 .Bl -tag -width Er
 .It Bq Er EINVAL
-A value structure specified a nanosecond value less than zero or greater than
-or equal to 1000 million, and the it_value member of that structure did not
+A
+.Fa value
+structure specified a nanosecond value less than zero or greater than
+or equal to 1000 million, and the
+.Va it_value
+member of that structure did not
 specify zero seconds and nanoseconds.
 .El
 .Pp
-These functions may fail if:
+These system calls may fail if:
 .Bl -tag -width Er
 .It Bq Er EINVAL
 The
@@ -156,19 +217,29 @@ but not yet deleted by
 .Fn timer_delete .
 .El
 .Pp
-The timer_settime() function may fail if:
+The
+.Fn timer_settime
+system call may fail if:
 .Bl -tag -width Er
 .It Bq Er EINVAL
-The it_interval member of value is not zero and the timer was created with
-notification by creation of a new thread ( sigev_sigev_notify was SIGEV_THREAD)
+The
+.Va it_interval
+member of
+.Fa value
+is not zero and the timer was created with
+notification by creation of a new thread
+.Va ( sigev_sigev_notify
+was
+.Dv SIGEV_THREAD )
 and a fixed stack address has been set in the thread attribute pointed to by
-sigev_notify_attributes.
+.Va sigev_notify_attributes .
 .El
 .Pp
 The
 .Fn timer_gettime
 and
 .Fn timer_settime
+system calls
 may fail if:
 .Bl -tag -width Er
 .It Bq Er EFAULT
@@ -176,7 +247,7 @@ Any arguments point outside the allocated address space or there is a
 memory protection fault.
 .El
 .Sh SEE ALSO
-.Xr clock_getres 2 , 
+.Xr clock_getres 2 ,
 .Xr timer_create 2
 .Sh STANDARDS
 The
@@ -184,5 +255,5 @@ The
 .Fn timer_gettime ,
 and
 .Fn timer_settime
-function conform to
+system calls conform to
 .St -p1003.1-96 .