From dedc53fcbeef43bae1393f5401fb119cc9af7304 Mon Sep 17 00:00:00 2001 From: robert Date: Tue, 22 Oct 2002 16:06:28 +0000 Subject: Change the `mutex_prof' structure to use three variables contained in an anonymous structure as counters, instead of an array with preprocessor-defined names for indices. Remove the associated XXX- comment. --- sys/kern/kern_mutex.c | 32 ++++++++++++++------------------ 1 file changed, 14 insertions(+), 18 deletions(-) (limited to 'sys/kern/kern_mutex.c') diff --git a/sys/kern/kern_mutex.c b/sys/kern/kern_mutex.c index a4eb2a9..4024f8a 100644 --- a/sys/kern/kern_mutex.c +++ b/sys/kern/kern_mutex.c @@ -218,14 +218,11 @@ struct mutex_prof { const char *name; const char *file; int line; - /* - * XXX should use specialized struct members instead of an array - * and these silly #defines. - */ -#define MPROF_MAX 0 -#define MPROF_TOT 1 -#define MPROF_CNT 2 - uintmax_t counter[3]; + struct { + uintmax_t max; + uintmax_t tot; + uintmax_t cur; + } cnt; struct mutex_prof *next; }; @@ -297,12 +294,11 @@ dump_mutex_prof_stats(SYSCTL_HANDLER_ARGS) mtx_lock_spin(&mprof_mtx); for (i = 0; i < first_free_mprof_buf; ++i) sbuf_printf(sb, "%6ju %12ju %11ju %5ju %s:%d (%s)\n", - mprof_buf[i].counter[MPROF_MAX] / 1000, - mprof_buf[i].counter[MPROF_TOT] / 1000, - mprof_buf[i].counter[MPROF_CNT], - mprof_buf[i].counter[MPROF_CNT] == 0 ? (uintmax_t)0 : - mprof_buf[i].counter[MPROF_TOT] / - (mprof_buf[i].counter[MPROF_CNT] * 1000), + mprof_buf[i].cnt.max / 1000, + mprof_buf[i].cnt.tot / 1000, + mprof_buf[i].cnt.cur, + mprof_buf[i].cnt.cur == 0 ? (uintmax_t)0 : + mprof_buf[i].cnt.tot / (mprof_buf[i].cnt.cur * 1000), mprof_buf[i].file, mprof_buf[i].line, mprof_buf[i].name); mtx_unlock_spin(&mprof_mtx); sbuf_finish(sb); @@ -397,10 +393,10 @@ _mtx_unlock_flags(struct mtx *m, int opts, const char *file, int line) * Record if the mutex has been held longer now than ever * before. */ - if (now - acqtime > mpp->counter[MPROF_MAX]) - mpp->counter[MPROF_MAX] = now - acqtime; - mpp->counter[MPROF_TOT] += now - acqtime; - mpp->counter[MPROF_CNT]++; + if (now - acqtime > mpp->cnt.max) + mpp->cnt.max = now - acqtime; + mpp->cnt.tot += now - acqtime; + mpp->cnt.cur++; unlock: mtx_unlock_spin(&mprof_mtx); } -- cgit v1.1