[src/trunk]: src/sys/dev/sysmon Add a routine to iterate over all the sensors...

[pgoyette <pgoyette%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/67ab2741e69b
branches:  trunk
changeset: 753407:67ab2741e69b
user:      pgoyette <pgoyette%NetBSD.org@localhost>
date:      Fri Mar 26 20:31:06 2010 +0000

description:
Add a routine to iterate over all the sensors on the system.  This will
be needed to update acpiapm_get_powstat() which is currently slightly
broken due to recent rearrangement of acpi_bat(4)'s sensors.  (This
approach is in lieu of exporting proplists between kernel entities, and
avoids exposing some internal sysmon_envsys details.)

diffstat:

 sys/dev/sysmon/sysmon_envsys.c |  31 +++++++++++++++++++++++++++++--
 sys/dev/sysmon/sysmonvar.h     |   5 ++++-
 2 files changed, 33 insertions(+), 3 deletions(-)

diffs (68 lines):

diff -r 40286e0eb537 -r 67ab2741e69b sys/dev/sysmon/sysmon_envsys.c
--- a/sys/dev/sysmon/sysmon_envsys.c    Fri Mar 26 19:43:04 2010 +0000
+++ b/sys/dev/sysmon/sysmon_envsys.c    Fri Mar 26 20:31:06 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sysmon_envsys.c,v 1.99 2010/03/26 12:36:59 pgoyette Exp $      */
+/*     $NetBSD: sysmon_envsys.c,v 1.100 2010/03/26 20:31:06 pgoyette Exp $     */
 
 /*-
  * Copyright (c) 2007, 2008 Juan Romero Pardines.
@@ -64,7 +64,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sysmon_envsys.c,v 1.99 2010/03/26 12:36:59 pgoyette Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sysmon_envsys.c,v 1.100 2010/03/26 20:31:06 pgoyette Exp $");
 
 #include <sys/param.h>
 #include <sys/types.h>
@@ -2001,3 +2001,30 @@
 
        return error;
 }
+
+/*
+ * + sysmon_envsys_foreach_sensor
+ *
+ *     Walk through the devices' sensor lists and execute the callback.
+ *     If the callback returns false, the remainder of the current
+ *     device's sensors are skipped.
+ */
+void   
+sysmon_envsys_foreach_sensor(bool(*func)(struct sysmon_envsys *,
+                            envsys_data_t *, void*), void *arg)
+{
+       struct sysmon_envsys *sme;
+       envsys_data_t *sensor;
+
+       mutex_enter(&sme_global_mtx);
+       LIST_FOREACH(sme, &sysmon_envsys_list, sme_list) {
+
+               mutex_enter(&sme->sme_mtx);
+               TAILQ_FOREACH(sensor, &sme->sme_sensors_list, sensors_head) {
+                       if ((*func)(sme, sensor, arg))
+                               break;
+               }
+               mutex_exit(&sme->sme_mtx);
+       }
+       mutex_exit(&sme_global_mtx);
+}
diff -r 40286e0eb537 -r 67ab2741e69b sys/dev/sysmon/sysmonvar.h
--- a/sys/dev/sysmon/sysmonvar.h        Fri Mar 26 19:43:04 2010 +0000
+++ b/sys/dev/sysmon/sysmonvar.h        Fri Mar 26 20:31:06 2010 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: sysmonvar.h,v 1.34 2010/03/19 02:19:13 pgoyette Exp $  */
+/*     $NetBSD: sysmonvar.h,v 1.35 2010/03/26 20:31:06 pgoyette Exp $  */
 
 /*-
  * Copyright (c) 2000 Zembu Labs, Inc.
@@ -208,6 +208,9 @@
 void   sysmon_envsys_sensor_event(struct sysmon_envsys *, envsys_data_t *,
                                   int);
 
+void   sysmon_envsys_foreach_sensor(bool(*)(struct sysmon_envsys *,
+                                    envsys_data_t *, void*), void *);
+
 void   sysmon_envsys_init(void);
 
 /*****************************************************************************