8158 Want named threads API
9857 proc manpages should have LIBRARY section

@@ -20,10 +20,11 @@
  */
 /*
  * Copyright (c) 2006, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2012 Milan Jurik. All rights reserved.
  * Copyright (c) 2016 by Delphix. All rights reserved.
+ * Copyright 2018 Joyent, Inc.
  */
 
 /*
  * Cache routines for nscd
  */

@@ -1815,10 +1816,12 @@
 
 
 static void
 revalidate(nsc_ctx_t *ctx)
 {
+        (void) thr_setname(thr_self(), "revalidate");
+
         for (;;) {
                 int             i, slp, interval, count;
 
                 (void) rw_rdlock(&ctx->cfg_rwlp);
                 slp = ctx->cfg.pos_ttl;

@@ -1959,10 +1962,12 @@
 
 static void
 do_update(nsc_lookup_args_t *in) {
         nss_pheader_t   *phdr = (nss_pheader_t *)in->buffer;
 
+        (void) thr_setname(thr_self(), "do_update");
+
         /* update the length of the data buffer */
         phdr->data_len = phdr->pbufsiz - phdr->data_off;
 
         (void) lookup_int(in, UPDATEBIT);
         if (in->buffer)

@@ -2188,10 +2193,12 @@
         uint_t          ttl, extra_sleep, total_sleep, intervals;
         uint_t          nodes_per_interval, seconds_per_interval;
         ulong_t         nsc_entries;
         char            *me = "reaper";
 
+        (void) thr_setname(thr_self(), me);
+
         for (;;) {
                 (void) mutex_lock(&ctx->stats_mutex);
                 nsc_entries = ctx->stats.entries;
                 (void) mutex_unlock(&ctx->stats_mutex);