diff options
Diffstat (limited to 'lib/libpmc/pmc_start.3')
-rw-r--r-- | lib/libpmc/pmc_start.3 | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/lib/libpmc/pmc_start.3 b/lib/libpmc/pmc_start.3 new file mode 100644 index 0000000..2272122 --- /dev/null +++ b/lib/libpmc/pmc_start.3 @@ -0,0 +1,77 @@ +.\" Copyright (c) 2007-2008 Joseph Koshy. 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 Joseph Koshy ``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 Joseph Koshy 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. +.\" +.\" $FreeBSD$ +.\" +.Dd September 22, 2008 +.Dt PMC_START 3 +.Os +.Sh NAME +.Nm pmc_start , +.Nm pmc_stop +.Nd start and stop a PMC +.Sh LIBRARY +.Lb libpmc +.Sh SYNOPSIS +.In pmc.h +.Ft int +.Fn pmc_start "pmc_id_t pmc" +.Ft int +.Fn pmc_stop "pmc_id_t pmc" +.Sh DESCRIPTION +These functions are used to start and stop a PMC. +.Pp +Function +.Fn pmc_start +starts the PMC specified by argument +.Fa pmc . +If the specified PMC has process scope and has not been attached +to any targets, it will be attached to the current process. +.Pp +Function +.Fn pmc_stop +stops the PMC specified by argument +.Fa pmc . +.Sh RETURN VALUES +.Rv -std +.Sh ERRORS +A call to these functions may fail with the following errors: +.Bl -tag -width Er +.It Bq Er EDOOFUS +Function +.Fn pmc_start +specified a PMC that requires a log file and no log file was +configured. +.It Bq Er EINVAL +The specified PMC is in the process of being deleted. +.It Bq Er EINVAL +Function +.Fn pmc_stop +specified a PMC that was never started. +.It Bq Er ENXIO +The specified PMC had system scope and its associated CPU was disabled or +absent. +.El +.Sh SEE ALSO +.Xr pmc 3 , +.Xr hwpmc 4 |