From: wessels <>
Date: Tue, 27 Apr 1999 04:34:06 +0000 (+0000)
Subject: only set the DNS socket read handler when we have outstanding queries,
X-Git-Tag: SQUID_3_0_PRE1~2242
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2e6caa54f95389af6ca69774e4288e5721c6edd4;p=thirdparty%2Fsquid.git

only set the DNS socket read handler when we have outstanding queries,
instead of having it set all the time
---

diff --git a/src/dns_internal.cc b/src/dns_internal.cc
index af0b81998b..57ecfa3f58 100644
--- a/src/dns_internal.cc
+++ b/src/dns_internal.cc
@@ -1,6 +1,6 @@
 
 /*
- * $Id: dns_internal.cc,v 1.12 1999/04/19 07:16:29 wessels Exp $
+ * $Id: dns_internal.cc,v 1.13 1999/04/26 22:34:06 wessels Exp $
  *
  * DEBUG: section 78    DNS lookups; interacts with lib/rfc1035.c
  * AUTHOR: Duane Wessels
@@ -192,6 +192,7 @@ idnsSendQuery(idns_query * q)
 	    DnsSocket, xstrerror());
     } else {
 	fd_bytes(DnsSocket, x, FD_WRITE);
+	commSetSelect(DnsSocket, COMM_SELECT_READ, idnsRead, NULL, 0);
     }
     q->nsends++;
     q->sent_t = current_time;
@@ -275,7 +276,6 @@ idnsRead(int fd, void *data)
     int max = 10;
     static char rbuf[512];
     int ns;
-    commSetSelect(fd, COMM_SELECT_READ, idnsRead, NULL, 0);
     while (max--) {
 	from_len = sizeof(from);
 	memset(&from, '\0', from_len);
@@ -312,6 +312,8 @@ idnsRead(int fd, void *data)
 	nameservers[ns].nreplies++;
 	idnsGrokReply(rbuf, len);
     }
+    if (lru_list.head)
+	commSetSelect(DnsSocket, COMM_SELECT_READ, idnsRead, NULL, 0);
 }
 
 static void
@@ -361,7 +363,6 @@ idnsInit(void)
 	if (DnsSocket < 0)
 	    fatal("Could not create a DNS socket");
 	debug(78, 1) ("DNS Socket created on FD %d\n", DnsSocket);
-	commSetSelect(DnsSocket, COMM_SELECT_READ, idnsRead, NULL, 0);
     }
     if (nns == 0)
 	idnsParseResolvConf();