I've put together man pages for the pthread_cleanup, pthread_cond, and

pthread_mutex routines. I've also tweaked pthread_create.3 to point to
pthread_cleanup_push(3) and pthread_cleanup_pop(3).

PR:		7450
Submitted by:	Brian Cully <shmit@kublai.com>

14 files changed, 936 insertions, 0 deletions

diff --git a/share/man/man3/pthread_cleanup_pop.3 b/share/man/man3/pthread_cleanup_pop.3
new file mode 100644
index 0000000..40ba9eb
--- /dev/null
+++ b/share/man/man3/pthread_cleanup_pop.3
@@ -0,0 +1,60 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 30, 1998
+.Dt PTHREAD_CLEANUP_POP 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_cleanup_pop
+.Nd call the first cleanup routine
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft void
+.Fn pthread_cleanup_pop "int execute"
+.Sh DESCRIPTION
+The
+.Fn pthread_cleanup_pop
+function pops the top cleanup routine off of the current threads cleanup
+routine stack, and, if
+.Fa execute
+is non-zero, it will execute the function. If there is no cleanup routine
+then
+.Fn pthread_cleanup_pop
+does nothing.
+.Sh RETURN VALUES
+.Fn pthread_cleanup_pop
+does not return any value.
+.Sh ERRORS
+None
+.Sh SEE ALSO
+.Xr pthread_cleanup_push 3 ,
+.Xr pthread_exit 3
+.Sh STANDARDS
+.Fn pthread_cleanup_pop
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.
diff --git a/share/man/man3/pthread_cleanup_push.3 b/share/man/man3/pthread_cleanup_push.3
new file mode 100644
index 0000000..3853a84
--- /dev/null
+++ b/share/man/man3/pthread_cleanup_push.3
@@ -0,0 +1,63 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 30, 1998
+.Dt PTHREAD_CLEANUP_PUSH 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_cleanup_push
+.Nd add a cleanup function for thread exit
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft void
+.Fn pthread_cleanup_push "void *(*cleanup_routine)(void *)" "void *arg"
+.Sh DESCRIPTION
+The
+.Fn pthread_cleanup_push
+function adds
+.Fa cleanup_routine
+to the top of the stack of cleanup handlers that
+get called when the current thread exits.
+.Pp
+When
+.Fn pthread_cleanup_push
+is called, it is passed
+.Fa arg
+as its only argument.
+.Sh RETURN VALUES
+.Fn pthread_cleanup_push
+does not return any value.
+.Sh ERRORS
+None
+.Sh SEE ALSO
+.Xr pthread_cleanup_pop 3 ,
+.Xr pthread_exit 3
+.Sh STANDARDS
+.Fn pthread_cleanup_push
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.
diff --git a/share/man/man3/pthread_cond_broadcast.3 b/share/man/man3/pthread_cond_broadcast.3
new file mode 100644
index 0000000..3298e74
--- /dev/null
+++ b/share/man/man3/pthread_cond_broadcast.3
@@ -0,0 +1,68 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 28, 1998
+.Dt PTHREAD_COND_BROADCAST 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_cond_broadcast
+.Nd unblock all threads waiting for a condition variable
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft int
+.Fn pthread_cond_broadcast "pthread_cond_t *cond"
+.Sh DESCRIPTION
+The
+.Fn pthread_cond_broadcast
+function unblocks all threads waiting for the condition variable
+.Fa cond .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cond_broadcast
+function will return zero, otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+.Fn pthread_cond_broadcast
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa cond
+is invalid.
+.El
+.Pp
+.Sh SEE ALSO
+.Xr pthread_cond_init 3 ,
+.Xr pthread_cond_destroy 3 ,
+.Xr pthread_cond_wait 3 ,
+.Xr pthread_cond_timedwait 3 ,
+.Xr pthread_cond_signal 3
+.Sh STANDARDS
+.Fn pthread_cond_broadcast
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.
diff --git a/share/man/man3/pthread_cond_destroy.3 b/share/man/man3/pthread_cond_destroy.3
new file mode 100644
index 0000000..2822f0e
--- /dev/null
+++ b/share/man/man3/pthread_cond_destroy.3
@@ -0,0 +1,72 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 28, 1998
+.Dt PTHREAD_COND_DESTROY 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_cond_destroy
+.Nd destroy a condition variable
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft int
+.Fn pthread_cond_destroy "pthread_cond_t *cond"
+.Sh DESCRIPTION
+The
+.Fn pthread_cond_destroy
+function frees the resources allocated by the condition variable
+.Fa cond .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cond_init
+function will return zero, otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+.Fn pthread_cond_destroy
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa cond
+is invalid.
+.It Bq Er EBUSY
+The variable
+.Fa cond
+is locked by another thread.
+.El
+.Pp
+.Sh SEE ALSO
+.Xr pthread_cond_init 3 ,
+.Xr pthread_cond_wait 3 ,
+.Xr pthread_cond_timedwait 3 ,
+.Xr pthread_cond_signal 3 ,
+.Xr pthread_cond_broadcast 3
+.Sh STANDARDS
+.Fn pthread_cond_destroy
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.
diff --git a/share/man/man3/pthread_cond_init.3 b/share/man/man3/pthread_cond_init.3
new file mode 100644
index 0000000..dd4759b
--- /dev/null
+++ b/share/man/man3/pthread_cond_init.3
@@ -0,0 +1,77 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 28, 1998
+.Dt PTHREAD_COND_INIT 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_cond_init
+.Nd create a condition variable
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft int
+.Fn pthread_cond_init "pthread_cond_t *cond" "pthread_condattr_t *attr"
+.Sh DESCRIPTION
+The
+.Fn pthread_cond_init
+function creates a new condition variable, with attributes specified with
+.Fa attr .
+If
+.Fa attr
+is NULL the default attributes are used.
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cond_init
+function will return zero and put the new condition variable id into
+.Fa cond ,
+otherwise an error number will be returned to indicate the error.
+.Sh ERRORS
+.Fn pthread_cond_init
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa attr
+is invalid.
+.It Bq Er ENOMEM
+The process cannot allocate enough memory to create another condition
+variable.
+.It Bq Er EAGAIN
+The temporarily lacks the resources to create another condition variable.
+.El
+.Pp
+.Sh SEE ALSO
+.Xr pthread_cond_destroy 3 ,
+.Xr pthread_cond_wait 3 ,
+.Xr pthread_cond_timedwait 3 ,
+.Xr pthread_cond_signal 3 ,
+.Xr pthread_cond_broadcast 3
+.Sh STANDARDS
+.Fn pthread_cond_init
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.
diff --git a/share/man/man3/pthread_cond_signal.3 b/share/man/man3/pthread_cond_signal.3
new file mode 100644
index 0000000..d7f807f
--- /dev/null
+++ b/share/man/man3/pthread_cond_signal.3
@@ -0,0 +1,68 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 28, 1998
+.Dt PTHREAD_COND_SIGNAL 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_cond_signal
+.Nd unblock a thread waiting for a condition variable
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft int
+.Fn pthread_cond_signal "pthread_cond_t *cond"
+.Sh DESCRIPTION
+The
+.Fn pthread_cond_signal
+function unblocks one thread waiting for the condition variable
+.Fa cond .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cond_signal
+function will return zero, otherwise an error number will be returned
+to indicate the error.
+.Sh ERRORS
+.Fn pthread_cond_signal
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa cond
+is invalid.
+.El
+.Pp
+.Sh SEE ALSO
+.Xr pthread_cond_init 3 ,
+.Xr pthread_cond_destroy 3 ,
+.Xr pthread_cond_wait 3 ,
+.Xr pthread_cond_timedwait 3 ,
+.Xr pthread_cond_broadcast 3
+.Sh STANDARDS
+.Fn pthread_cond_signal
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.
diff --git a/share/man/man3/pthread_cond_timedwait.3 b/share/man/man3/pthread_cond_timedwait.3
new file mode 100644
index 0000000..8168315
--- /dev/null
+++ b/share/man/man3/pthread_cond_timedwait.3
@@ -0,0 +1,85 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 28, 1998
+.Dt PTHREAD_COND_TIMEDWAIT 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_cond_timedwait
+.Nd wait on a condition variable for a specific amount of time
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft int
+.Fn pthread_cond_timedwait "pthread_cond_t *cond" "pthread_mutex_t *mutex" "const struct timespec *abstime"
+.Sh DESCRIPTION
+The
+.Fn pthread_cond_timedwait
+function atomically blocks the current thread waiting on the condition
+variable specified by
+.Fa cond ,
+and unblocks the mutex specified by
+.Fa mutex .
+The waiting thread unblocks only after another thread calls
+.Xr pthread_cond_signal 3 ,
+or
+.Xr pthread_cond_broadcast 3
+with the same condition variable, or if the system time reaches the
+time specified in
+.Fa abstime ,
+and the current thread reaquires the lock on
+.Fa mutex .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cond_timedwait
+function will return zero. Otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+.Fn pthread_cond_timedwait
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa cond
+or the value specified by
+.Fa attr
+is invalid.
+.It Bq Er ETIMEDOUT
+The system time has reached or exceeded the time specified in
+.Fa abstime .
+.El
+.Pp
+.Sh SEE ALSO
+.Xr pthread_cond_init 3 ,
+.Xr pthread_cond_destroy 3 ,
+.Xr pthread_cond_wait 3 ,
+.Xr pthread_cond_signal 3 ,
+.Xr pthread_cond_broadcast 3
+.Sh STANDARDS
+.Fn pthread_cond_timedwait
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.
diff --git a/share/man/man3/pthread_cond_wait.3 b/share/man/man3/pthread_cond_wait.3
new file mode 100644
index 0000000..a1b8d12
--- /dev/null
+++ b/share/man/man3/pthread_cond_wait.3
@@ -0,0 +1,79 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 28, 1998
+.Dt PTHREAD_COND_WAIT 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_cond_wait
+.Nd wait on a condition variable
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft int
+.Fn pthread_cond_wait "pthread_cond_t *cond" "pthread_mutex_t *mutex"
+.Sh DESCRIPTION
+The
+.Fn pthread_cond_wait
+function atomically blocks the current thread waiting on the condition
+variable specified by
+.Fa cond ,
+and unblocks the mutex specified by
+.Fa mutex .
+The waiting thread unblocks only after another thread calls
+.Xr pthread_cond_signal 3 , or
+.Xr pthread_cond_broadcast 3
+with the same condition variable, and the current thread reaquires the lock
+on
+.Fa mutex .
+.Sh RETURN VALUES
+If successful, the
+.Fn pthread_cond_wait
+function will return zero. Otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+.Fn pthread_cond_wait
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa cond
+or the value specified by
+.Fa attr
+is invalid.
+.El
+.Pp
+.Sh SEE ALSO
+.Xr pthread_cond_init 3 ,
+.Xr pthread_cond_destroy 3 ,
+.Xr pthread_cond_timedwait 3 ,
+.Xr pthread_cond_signal 3 ,
+.Xr pthread_cond_broadcast 3
+.Sh STANDARDS
+.Fn pthread_cond_wait
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.
diff --git a/share/man/man3/pthread_create.3 b/share/man/man3/pthread_create.3
index 4da26cf..18ace5e 100644
--- a/share/man/man3/pthread_create.3
+++ b/share/man/man3/pthread_create.3
@@ -102,6 +102,8 @@ is invalid.
 .Sh SEE ALSO
 .Xr fork 2 ,
 .Xr pthread_exit 3 ,
+.Xr pthread_cleanup_push 3 ,
+.Xr pthread_cleanup_pop 3 ,
 .Xr pthread_join 3
 .Sh STANDARDS
 .Fn pthread_create
diff --git a/share/man/man3/pthread_mutex_destroy.3 b/share/man/man3/pthread_mutex_destroy.3
new file mode 100644
index 0000000..4f9b991
--- /dev/null
+++ b/share/man/man3/pthread_mutex_destroy.3
@@ -0,0 +1,70 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 29, 1998
+.Dt PTHREAD_MUTEX_DESTROY 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_mutex_destroy
+.Nd free resources allocated for a mutex
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft int
+.Fn pthread_mutex_destroy "pthread_mutex_t *mutex"
+.Sh DESCRIPTION
+The
+.Fn pthread_mutex_destroy
+function frees the resources allocated for
+.Fa mutex .
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_mutex_destroy
+will return zero, otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+.Fn pthread_mutex_destroy
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa mutex
+is invalid.
+.It Bq Er EBUSY
+.Fa Mutex
+is locked by another thread.
+.El
+.Pp
+.Sh SEE ALSO
+.Xr pthread_mutex_init 3 ,
+.Xr pthread_mutex_lock 3 ,
+.Xr pthread_mutex_unlock 3 ,
+.Xr pthread_mutex_trylock 3
+.Sh STANDARDS
+.Fn pthread_mutex_destroy
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.
diff --git a/share/man/man3/pthread_mutex_init.3 b/share/man/man3/pthread_mutex_init.3
new file mode 100644
index 0000000..5136eef
--- /dev/null
+++ b/share/man/man3/pthread_mutex_init.3
@@ -0,0 +1,75 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 29, 1998
+.Dt PTHREAD_MUTEX_INIT 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_mutex_init
+.Nd create a mutex
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft int
+.Fn pthread_mutex_init "pthread_mutex_t *mutex" "pthread_mutexattr_t *attr"
+.Sh DESCRIPTION
+The
+.Fn pthread_mutex_init
+function creates a new mutex, with attributes specified with
+.Fa attr .
+If
+.Fa attr
+is NULL the default attributes are used.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_mutex_init
+will return zero and put the new mutex id into
+.Fa mutex ,
+otherwise an error number will be returned to indicate the error.
+.Sh ERRORS
+.Fn pthread_mutex_init
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa attr
+is invalid.
+.It Bq Er ENOMEM
+The process cannot allocate enough memory to create another mutex.
+.It Bq Er EAGAIN
+The temporarily lacks the resources to create another mutex.
+.El
+.Pp
+.Sh SEE ALSO
+.Xr pthread_mutex_destroy 3 ,
+.Xr pthread_mutex_lock 3 ,
+.Xr pthread_mutex_unlock 3 ,
+.Xr pthread_mutex_trylock 3
+.Sh STANDARDS
+.Fn pthread_mutex_init
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.
diff --git a/share/man/man3/pthread_mutex_lock.3 b/share/man/man3/pthread_mutex_lock.3
new file mode 100644
index 0000000..7636772
--- /dev/null
+++ b/share/man/man3/pthread_mutex_lock.3
@@ -0,0 +1,72 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 30, 1998
+.Dt PTHREAD_MUTEX_LOCK 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_mutex_lock
+.Nd lock a mutex
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft int
+.Fn pthread_mutex_lock "pthread_mutex_t *mutex"
+.Sh DESCRIPTION
+The
+.Fn pthread_mutex_lock
+function locks
+.Fa mutex .
+If the mutex is already locked, the calling thread will block until the
+mutex becomes available.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_mutex_lock
+will return zero, otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+.Fn pthread_mutex_lock
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa mutex
+is invalid.
+.It Bq Er EDEADLK
+A deadlock would occur if the thread blocked waiting for
+.Fa mutex .
+.El
+.Pp
+.Sh SEE ALSO
+.Xr pthread_mutex_unlock 3 ,
+.Xr pthread_mutex_trylock 3 ,
+.Xr pthread_mutex_init 3 ,
+.Xr pthread_mutex_destroy 3
+.Sh STANDARDS
+.Fn pthread_mutex_lock
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.
diff --git a/share/man/man3/pthread_mutex_trylock.3 b/share/man/man3/pthread_mutex_trylock.3
new file mode 100644
index 0000000..3ba235e
--- /dev/null
+++ b/share/man/man3/pthread_mutex_trylock.3
@@ -0,0 +1,73 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 30, 1998
+.Dt PTHREAD_MUTEX_TRYLOCK 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_mutex_trylock
+.Nd attempt to lock a mutex without blocking
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft int
+.Fn pthread_mutex_trylock "pthread_mutex_t *mutex"
+.Sh DESCRIPTION
+The
+.Fn pthread_mutex_trylock
+function locks
+.Fa mutex .
+If the mutex is already locked,
+.Fn pthread_mutex_trylock
+will not block waiting for the mutex, but will return an error condition.
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_mutex_trylock
+will return zero, otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+.Fn pthread_mutex_trylock
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa mutex
+is invalid.
+.It Bq Er EBUSY
+.Fa Mutex
+is already locked.
+.El
+.Pp
+.Sh SEE ALSO
+.Xr pthread_mutex_lock 3 ,
+.Xr pthread_mutex_unlock 3 ,
+.Xr pthread_mutex_init 3 ,
+.Xr pthread_mutex_destroy 3
+.Sh STANDARDS
+.Fn pthread_mutex_trylock
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.
diff --git a/share/man/man3/pthread_mutex_unlock.3 b/share/man/man3/pthread_mutex_unlock.3
new file mode 100644
index 0000000..18884e9
--- /dev/null
+++ b/share/man/man3/pthread_mutex_unlock.3
@@ -0,0 +1,72 @@
+.\" Copyright (c) 1997 Brian Cully <shmit@kublai.com>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the author nor the names of any co-contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.Dd July 30, 1998
+.Dt PTHREAD_MUTEX_UNLOCK 3
+.Os BSD 4
+.Sh NAME
+.Nm pthread_mutex_unlock
+.Nd unlock a mutex
+.Sh SYNOPSIS
+.Fd #include <pthread.h>
+.Ft int
+.Fn pthread_mutex_unlock "pthread_mutex_t *mutex"
+.Sh DESCRIPTION
+If the current thread holds the lock on
+.Fa mutex ,
+then the
+.Fn pthread_mutex_unlock
+function unlocks
+.Fa mutex .
+.Sh RETURN VALUES
+If successful,
+.Fn pthread_mutex_unlock
+will return zero, otherwise an error number will be returned to
+indicate the error.
+.Sh ERRORS
+.Fn pthread_mutex_trylock
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The value specified by
+.Fa mutex
+is invalid.
+.It Bq Er EPERM
+The current thread does not hold a lock on
+.Fa mutex .
+.El
+.Pp
+.Sh SEE ALSO
+.Xr pthread_mutex_lock 3 ,
+.Xr pthread_mutex_trylock 3 ,
+.Xr pthread_mutex_init 3 ,
+.Xr pthread_mutex_destroy 3
+.Sh STANDARDS
+.Fn pthread_mutex_unlock
+is expected to conform to IEEE
+.Pq Dq Tn POSIX
+Std 1003.1c when it is published.