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Added man pages for fence types (#239)
Added new man pages for ck_pr_fence_lock(), ck_pr_fence_unlock(), and ck_pr_fence_acqrel() Resolves #239 --------- Authored-by: Luca Burlacu <nychawk@lucas-mbp.myfiosgateway.com> Authored-by: Luca Burlacu <nychawk@Lucas-MacBook-Pro.local>
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.\" | ||
.\" Copyright 2024 Luca Burlacu. | ||
.\" 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. | ||
.\" | ||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 November 24, 2024 | ||
.Dt ck_pr_fence_acqrel 3 | ||
.Sh NAME | ||
.Nm ck_pr_fence_acqrel | ||
.Nd enforce ordering of acquire and release operations | ||
.Sh LIBRARY | ||
Concurrency Kit (libck, \-lck) | ||
.Sh SYNOPSIS | ||
.In ck_pr.h | ||
.Ft void | ||
.Fn ck_pr_fence_acqrel void | ||
.Ft void | ||
.Fn ck_pr_fence_strict_acqrel void | ||
.Sh DESCRIPTION | ||
This function enforces memory using both acquire and release ordering relative | ||
to the invocation of the function. Acquire ordering will prevent reordering | ||
of preceding reads with subsequent reads or writes. Release ordering will | ||
prevent reordering of preceding reads or writes with subsequent writes. | ||
On architectures with CK_MD_TSO (total store ordering), this operation only serves | ||
as a compiler barrier and no fence instructions will be emitted. | ||
Architectures implementing CK_MD_PSO or CK_MD_RMO (partial store ordering and relaxed memory ordering respectively) | ||
always emit a fence. | ||
|
||
.Sh RETURN VALUES | ||
This function has no return value. | ||
.Sh SEE ALSO | ||
.Xr ck_pr_fence_acquire 3 , | ||
.Xr ck_pr_fence_atomic 3 , | ||
.Xr ck_pr_fence_atomic_load 3 , | ||
.Xr ck_pr_fence_atomic_store 3 , | ||
.Xr ck_pr_fence_load 3 , | ||
.Xr ck_pr_fence_load_atomic 3 , | ||
.Xr ck_pr_fence_load_depends 3 , | ||
.Xr ck_pr_fence_load_store 3 , | ||
.Xr ck_pr_fence_lock 3 , | ||
.Xr ck_pr_fence_memory 3 , | ||
.Xr ck_pr_fence_release 3 , | ||
.Xr ck_pr_fence_store 3 , | ||
.Xr ck_pr_fence_store_atomic 3 , | ||
.Xr ck_pr_fence_store_load 3 , | ||
.Xr ck_pr_fence_unlock 3 , | ||
|
||
.Pp | ||
Additional information available at http://concurrencykit.org/ |
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.\" | ||
.\" Copyright 2024 Luca Burlacu. | ||
.\" 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. | ||
.\" | ||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 November 24, 2024 | ||
.Dt ck_pr_fence_lock 3 | ||
.Sh NAME | ||
.Nm ck_pr_fence_lock | ||
.Nd enforce memory ordering when acquiring a lock | ||
.Sh LIBRARY | ||
Concurrency Kit (libck, \-lck) | ||
.Sh SYNOPSIS | ||
.In ck_pr.h | ||
.Ft void | ||
.Fn ck_pr_fence_lock void | ||
.Sh DESCRIPTION | ||
This function serves as an implicit compiler barrier. | ||
On architectures with CK_MD_TSO (total store ordering), | ||
this operation only serves as a compiler barrier and no fence instructions | ||
will be emitted. Architectures implementing CK_MD_PSO or CK_MD_RMO | ||
(partial store ordering and relaxed memory ordering respectively) | ||
always emit a fence. On SPARCv9, | ||
.Fn ck_pr_fence_lock | ||
enforces ordering of load-load, load-store, store-store, and store-load. | ||
To force the unconditional emission of a fence, use | ||
.Fn ck_pr_fence_strict_lock . | ||
|
||
.Sh RETURN VALUES | ||
This function has no return value. | ||
.Sh SEE ALSO | ||
.Xr ck_pr_fence_acqrel 3 , | ||
.Xr ck_pr_fence_acquire 3 , | ||
.Xr ck_pr_fence_atomic 3 , | ||
.Xr ck_pr_fence_atomic_load 3 , | ||
.Xr ck_pr_fence_atomic_store 3 , | ||
.Xr ck_pr_fence_load 3 , | ||
.Xr ck_pr_fence_load_atomic 3 , | ||
.Xr ck_pr_fence_load_depends 3 , | ||
.Xr ck_pr_fence_load_store 3 , | ||
.Xr ck_pr_fence_memory 3 , | ||
.Xr ck_pr_fence_release 3 , | ||
.Xr ck_pr_fence_store 3 , | ||
.Xr ck_pr_fence_store_atomic 3 , | ||
.Xr ck_pr_fence_store_load 3 , | ||
.Xr ck_pr_fence_unlock 3 | ||
.Pp | ||
Additional information available at http://concurrencykit.org/ |
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.\" | ||
.\" Copyright 2024 Luca Burlacu. | ||
.\" 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. | ||
.\" | ||
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 November 24, 2024 | ||
.Dt ck_pr_fence_unlock 3 | ||
.Sh NAME | ||
.Nm ck_pr_fence_unlock | ||
.Nd enforce memory ordering when releasing a lock | ||
.Sh LIBRARY | ||
Concurrency Kit (libck, \-lck) | ||
.Sh SYNOPSIS | ||
.In ck_pr.h | ||
.Ft void | ||
.Fn ck_pr_fence_unlock void | ||
.Sh DESCRIPTION | ||
This function serves as an implicit compiler barrier. | ||
On architectures with CK_MD_TSO (total store ordering), this operation only serves | ||
as a compiler barrier and no fence instructions will be emitted. | ||
Architectures implementing CK_MD_PSO or CK_MD_RMO | ||
(partial store ordering and relaxed memory ordering respectively) | ||
always emit a fence. On SPARCv9 | ||
.Fn ck_pr_fence_unlock | ||
enforces ordering on load-store and store-load, instead of the full range that | ||
.Fn ck_pr_fence_lock | ||
does. To force the unconditional emission of a fence, use | ||
.Fn ck_pr_fence_strict_unlock . | ||
|
||
.Sh RETURN VALUES | ||
This function has no return value. | ||
.Sh SEE ALSO | ||
.Xr ck_pr_fence_acqrel 3 , | ||
.Xr ck_pr_fence_acquire 3 , | ||
.Xr ck_pr_fence_atomic 3 , | ||
.Xr ck_pr_fence_atomic_load 3 , | ||
.Xr ck_pr_fence_atomic_store 3 , | ||
.Xr ck_pr_fence_load 3 , | ||
.Xr ck_pr_fence_load_atomic 3 , | ||
.Xr ck_pr_fence_load_depends 3 , | ||
.Xr ck_pr_fence_load_store 3 , | ||
.Xr ck_pr_fence_lock 3 , | ||
.Xr ck_pr_fence_memory 3 , | ||
.Xr ck_pr_fence_release 3 , | ||
.Xr ck_pr_fence_store 3 , | ||
.Xr ck_pr_fence_store_atomic 3 , | ||
.Xr ck_pr_fence_store_load 3 | ||
.Pp | ||
Additional information available at http://concurrencykit.org/ |