4 files changed, 21 insertions, 1 deletions

diff --git a/lib/libpmc/libpmc.c b/lib/libpmc/libpmc.c
index 66609839dac1..efdabc824adf 100644
--- a/lib/libpmc/libpmc.c
+++ b/lib/libpmc/libpmc.c
@@ -2596,6 +2596,12 @@ pmc_flush_logfile(void)
 }
 
 int
+pmc_close_logfile(void)
+{
+	return (PMC_CALL(CLOSELOG,0));
+}
+
+int
 pmc_get_driver_stats(struct pmc_driverstats *ds)
 {
 	struct pmc_op_getdriverstats gms;
diff --git a/lib/libpmc/pmc.3 b/lib/libpmc/pmc.3
index 2403e64686bb..2431080a32a9 100644
--- a/lib/libpmc/pmc.3
+++ b/lib/libpmc/pmc.3
@@ -322,6 +322,10 @@ to write logged events to.
 Flush all pending log data in
 .Xr hwpmc 4 Ns Ap s
 buffers.
+.It Fn pmc_close_logfile
+Flush all pending log data and close
+.Xr hwpmc 4 Ns Ap s
+side of the stream.
 .It Fn pmc_writelog
 Append arbitrary user data to the current log file.
 .El
diff --git a/lib/libpmc/pmc.h b/lib/libpmc/pmc.h
index 5b1ad07c339a..2be88b121d3c 100644
--- a/lib/libpmc/pmc.h
+++ b/lib/libpmc/pmc.h
@@ -76,6 +76,7 @@ int	pmc_attach(pmc_id_t _pmcid, pid_t _pid);
 int	pmc_capabilities(pmc_id_t _pmc, uint32_t *_caps);
 int	pmc_configure_logfile(int _fd);
 int	pmc_flush_logfile(void);
+int	pmc_close_logfile(void);
 int	pmc_detach(pmc_id_t _pmcid, pid_t _pid);
 int	pmc_disable(int _cpu, int _pmc);
 int	pmc_enable(int _cpu, int _pmc);
diff --git a/lib/libpmc/pmc_configure_logfile.3 b/lib/libpmc/pmc_configure_logfile.3
index a33688c222c0..399f21a7c542 100644
--- a/lib/libpmc/pmc_configure_logfile.3
+++ b/lib/libpmc/pmc_configure_logfile.3
@@ -29,7 +29,8 @@
 .Sh NAME
 .Nm pmc_configure_logfile ,
 .Nm pmc_flush_logfile ,
-.Nm pmc_writelog
+.Nm pmc_writelog ,
+.Nm pmc_close_logfile
 .Nd log file management
 .Sh LIBRARY
 .Lb libpmc
@@ -41,6 +42,8 @@
 .Fn pmc_flush_logfile void
 .Ft int
 .Fn pmc_writelog "uint32_t userdata"
+.Ft int
+.Fn pmc_close_logfile void
 .Sh DESCRIPTION
 The functions manage logging of
 .Xr hwpmc 4
@@ -72,6 +75,12 @@ Function
 will append a log entry containing the value of argument
 .Fa userdata
 to the log file.
+.Pp
+Function
+.Fn pmc_close_logfile
+will flush all pending log data and close
+.Xr hwpmc 4 Ns Ap s
+side of the stream.
 .Sh RETURN VALUES
 .Rv -std
 .Sh ERRORS