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htop/zfs/ZfsArcMeter.h

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Support ZFS ARC stats on FreeBSD New meter displays same ARC stats as FreeBSD top(1). Can be extended to other platforms that support ZFS. Pulling kstat.zfs.misc.arcstats.c_max as the meter total, so the meter has a meaningful value to work up to. The Text meter displays, first, the maximum ARC size (Meter.total), then second, the total ARC used, using the difference between Meter.maxItems and Meter.curItems to "hide" the used value from the Bar and Graph drawing functions by using an index in Meter.values[] that is beyond curItems - 1, but less than maxItems - 1.
2019-07-06 04:27:49 +00:00
#ifndef HEADER_ZfsArcMeter
#define HEADER_ZfsArcMeter
/*
htop - ZfsArcMeter.h
(C) 2004-2011 Hisham H. Muhammad
Update License consistently to GPLv2 as per COPYING file
2020-10-05 07:51:32 +00:00
Released under the GNU GPLv2, see the COPYING file
Support ZFS ARC stats on FreeBSD New meter displays same ARC stats as FreeBSD top(1). Can be extended to other platforms that support ZFS. Pulling kstat.zfs.misc.arcstats.c_max as the meter total, so the meter has a meaningful value to work up to. The Text meter displays, first, the maximum ARC size (Meter.total), then second, the total ARC used, using the difference between Meter.maxItems and Meter.curItems to "hide" the used value from the Bar and Graph drawing functions by using an index in Meter.values[] that is beyond curItems - 1, but less than maxItems - 1.
2019-07-06 04:27:49 +00:00
in the source distribution for its full text.
*/
Refactor openzfs_sysctl_init() and ZfsArcMeter... openzfs_sysctl_init() now returns void instead of int. The ZfsArcStats->enabled flag is set inside the init function now, instead of having to be set from its return value. Preparation for more flag setting in Compressed ARC commit. ZfsArcMeter_readStats() added and all Meter->values[] setting moved to it, eliminating duplicated code in {darwin,freebsd,linux,solaris}/Platform.c.
2019-09-03 18:21:33 +00:00
#include "ZfsArcStats.h"
Support ZFS ARC stats on FreeBSD New meter displays same ARC stats as FreeBSD top(1). Can be extended to other platforms that support ZFS. Pulling kstat.zfs.misc.arcstats.c_max as the meter total, so the meter has a meaningful value to work up to. The Text meter displays, first, the maximum ARC size (Meter.total), then second, the total ARC used, using the difference between Meter.maxItems and Meter.curItems to "hide" the used value from the Bar and Graph drawing functions by using an index in Meter.values[] that is beyond curItems - 1, but less than maxItems - 1.
2019-07-06 04:27:49 +00:00
#include "Meter.h"
Remove superfluous 'extern's from function declarations. Applied via: $ find * -name '*.h' -exec sed -i -r 's/^extern (.+\()/\1/;' {} + Suggested-by: Bert Wesarg <bert.wesarg@googlemail.com>
2020-09-02 07:38:44 +00:00
void ZfsArcMeter_readStats(Meter* this, ZfsArcStats* stats);
Refactor openzfs_sysctl_init() and ZfsArcMeter... openzfs_sysctl_init() now returns void instead of int. The ZfsArcStats->enabled flag is set inside the init function now, instead of having to be set from its return value. Preparation for more flag setting in Compressed ARC commit. ZfsArcMeter_readStats() added and all Meter->values[] setting moved to it, eliminating duplicated code in {darwin,freebsd,linux,solaris}/Platform.c.
2019-09-03 18:21:33 +00:00
Mark remaining classes const
2020-10-13 12:35:30 +00:00
extern const MeterClass ZfsArcMeter_class;
Support ZFS ARC stats on FreeBSD New meter displays same ARC stats as FreeBSD top(1). Can be extended to other platforms that support ZFS. Pulling kstat.zfs.misc.arcstats.c_max as the meter total, so the meter has a meaningful value to work up to. The Text meter displays, first, the maximum ARC size (Meter.total), then second, the total ARC used, using the difference between Meter.maxItems and Meter.curItems to "hide" the used value from the Bar and Graph drawing functions by using an index in Meter.values[] that is beyond curItems - 1, but less than maxItems - 1.
2019-07-06 04:27:49 +00:00
#endif