mirror of
https://github.com/NLnetLabs/unbound.git
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delay test program.
git-svn-id: file:///svn/unbound/trunk@988 be551aaa-1e26-0410-a405-d3ace91eadb9
This commit is contained in:
Wouter Wijngaards
parent
2f4be547bd
commit
9071852837
3 changed files with 226 additions and 2 deletions
10
Makefile.in
10
Makefile.in
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@ -96,13 +96,15 @@ STREAMTCP_SRC=testcode/streamtcp.c smallapp/worker_cb.c $(COMMON_SRC)
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STREAMTCP_OBJ=$(addprefix $(BUILD),$(STREAMTCP_SRC:.c=.o)) $(COMPAT_OBJ)
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PERF_SRC=testcode/perf.c smallapp/worker_cb.c $(COMMON_SRC)
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PERF_OBJ=$(addprefix $(BUILD),$(PERF_SRC:.c=.o)) $(COMPAT_OBJ)
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DELAYER_SRC=testcode/delayer.c smallapp/worker_cb.c $(COMMON_SRC)
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DELAYER_OBJ=$(addprefix $(BUILD),$(DELAYER_SRC:.c=.o)) $(COMPAT_OBJ)
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LIBUNBOUND_SRC=$(patsubst $(srcdir)/%,%, \
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$(wildcard $(srcdir)/libunbound/*.c) $(COMMON_SRC))
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LIBUNBOUND_OBJ=$(addprefix $(BUILD),$(LIBUNBOUND_SRC:.c=.o)) $(COMPAT_OBJ)
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ALL_SRC=$(sort $(COMMON_SRC) $(UNITTEST_SRC) $(DAEMON_SRC) \
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$(TESTBOUND_SRC) $(LOCKVERIFY_SRC) $(PKTVIEW_SRC) $(SIGNIT_SRC) \
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$(MEMSTATS_SRC) $(CHECKCONF_SRC) $(LIBUNBOUND_SRC) $(HOST_SRC) \
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$(ASYNCLOOK_SRC) $(STREAMTCP_SRC) $(PERF_SRC))
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$(ASYNCLOOK_SRC) $(STREAMTCP_SRC) $(PERF_SRC) $(DELAYER_SRC))
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ALL_OBJ=$(addprefix $(BUILD),$(ALL_SRC:.c=.o) \
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$(addprefix compat/,$(LIBOBJS))) $(COMPAT_OBJ)
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@ -122,7 +124,7 @@ $(BUILD)%.o: $(srcdir)/%.c
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all: $(COMMON_OBJ) unbound unbound-checkconf lib unbound-host
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tests: all unittest testbound lock-verify pktview signit memstats \
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asynclook streamtcp perf
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asynclook streamtcp perf delayer
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test: tests
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bash testcode/do-tests.sh
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@ -190,6 +192,10 @@ perf: $(PERF_OBJ) $(ldnslib)
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$(INFO) Link $@
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$Q$(LINK) -o $@ $(sort $(PERF_OBJ)) $(LIBS)
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delayer: $(DELAYER_OBJ) $(ldnslib)
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$(INFO) Link $@
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$Q$(LINK) -o $@ $(sort $(DELAYER_OBJ)) $(LIBS)
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#testcode/ldns-testpkts.c: $(ldnsdir)/examples/ldns-testpkts.c \
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# $(ldnsdir)/examples/ldns-testpkts.h
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# cp $(ldnsdir)/examples/ldns-testpkts.c testcode/ldns-testpkts.c
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@ -17,6 +17,7 @@
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www with DO bit set : BIND 8269.31 Ub 28735.6 qps.
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So, unbound can be about equal qps to NSD in cache hits.
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And about 3.4x faster than BIND in cache performance.
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- delay utility for testing.
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21 February 2008: Wouter
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- speedup of root-delegation message encoding by 15%.
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217
testcode/delayer.c
Normal file
217
testcode/delayer.c
Normal file
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@ -0,0 +1,217 @@
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/*
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* testcode/delayer.c - debug program that delays queries to a server.
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*
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* Copyright (c) 2008, NLnet Labs. All rights reserved.
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*
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* This software is open source.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of the NLNET LABS nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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* \file
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*
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* This program delays queries made. It performs as a proxy to another
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* server and delays queries to it.
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*/
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#include "config.h"
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#include "util/net_help.h"
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#include "util/config_file.h"
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#include <signal.h>
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/**
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* The ring buffer
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*/
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struct ringbuf {
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/** base of buffer */
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uint8_t* buf;
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/** size of buffer */
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size_t size;
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/** low mark, items start here */
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size_t low;
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/** high mark, items end here */
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size_t high;
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};
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/** usage information for delayer */
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void usage(char* argv[])
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{
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printf("usage: %s [options]\n", argv[0]);
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printf(" -f addr : use addr, forward to that server, @port.\n");
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printf(" -b addr : bind to this address to listen.\n");
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printf(" -p port : bind to this port (0 for random).\n");
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printf(" -m mem : use this much memory for waiting queries.\n");
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printf(" -d delay: queries are delayed n milliseconds.\n");
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printf(" -h : this help message\n");
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exit(1);
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}
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/** create new ring buffer */
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static struct ringbuf*
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ring_create(size_t sz)
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{
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struct ringbuf* r = (struct ringbuf*)calloc(1, sizeof(*r));
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if(!r) fatal_exit("out of memory");
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r->buf = (uint8_t*)malloc(sz);
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if(!r->buf) fatal_exit("out of memory");
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r->size = sz;
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r->low = 0;
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r->high = 0;
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return r;
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}
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/** delete ring buffer */
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static void
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ring_delete(struct ringbuf* r)
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{
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if(!r) return;
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free(r->buf);
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free(r);
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}
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/** signal handler global info */
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static volatile int do_quit = 0;
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/** signal handler for user quit */
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static RETSIGTYPE delayer_sigh(int sig)
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{
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printf("exit on signal %d\n", sig);
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do_quit = 1;
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}
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/** delayer main service routine */
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static void
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service(char* bind_str, int bindport, char* serv_str, size_t memsize,
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int delay_msec)
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{
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struct sockaddr_storage bind_addr, srv_addr;
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socklen_t bind_len, srv_len;
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struct ringbuf* ring = ring_create(memsize);
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struct timeval delay;
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int s;
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delay.tv_sec = delay_msec / 1000;
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delay.tv_usec = (delay_msec % 1000)*1000;
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if(bindport == 0)
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bindport = 1024 + random()%64000;
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if(!ipstrtoaddr(bind_str, bindport, &bind_addr, &bind_len)) {
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printf("cannot parse listen address: %s\n", bind_str);
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exit(1);
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}
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if(!extstrtoaddr(serv_str, &srv_addr, &srv_len)) {
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printf("cannot parse forward address: %s\n", serv_str);
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exit(1);
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}
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if( signal(SIGINT, delayer_sigh) == SIG_ERR ||
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signal(SIGTERM, delayer_sigh) == SIG_ERR ||
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signal(SIGHUP, delayer_sigh) == SIG_ERR ||
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signal(SIGQUIT, delayer_sigh) == SIG_ERR ||
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signal(SIGALRM, delayer_sigh) == SIG_ERR)
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fatal_exit("could not bind to signal");
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/* bind UDP port */
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if((s = socket(addr_is_ip6(&bind_addr, bind_len)?AF_INET6:AF_INET,
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SOCK_DGRAM, 0)) == -1)
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fatal_exit("socket: %s", strerror(errno));
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if(bind(s, (struct sockaddr*)&bind_addr, bind_len) == -1)
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fatal_exit("bind: %s", strerror(errno));
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printf("listening on port: %d\n", bindport);
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/* process loop */
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/* wait for events */
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while(!do_quit) {
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/* get current time */
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/* sendout delayed queries to master server (frees up buffer)*/
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/* see what can be received to start waiting */
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/* see what next timeout is (if any) */
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}
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/* cleanup */
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close(s);
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ring_delete(ring);
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}
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/** getopt global, in case header files fail to declare it. */
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extern int optind;
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/** getopt global, in case header files fail to declare it. */
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extern char* optarg;
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/** main program for delayer */
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int main(int argc, char** argv)
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{
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int c; /* defaults */
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char* server = "127.0.0.1@53";
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char* bindto = "0.0.0.0";
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int bindport = 0;
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size_t memsize = 10*1024*1024;
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int delay = 100;
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srandom(time(NULL) ^ getpid());
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while( (c=getopt(argc, argv, "b:d:f:hm:p:")) != -1) {
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switch(c) {
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case 'b':
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bindto = optarg;
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break;
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case 'd':
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if(atoi(optarg)==0 && strcmp(optarg,"0")!=0) {
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printf("bad delay: %s\n", optarg);
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return 1;
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}
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delay = atoi(optarg);
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break;
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case 'f':
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server = optarg;
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break;
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case 'm':
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if(!cfg_parse_memsize(optarg, &memsize)) {
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printf("bad memsize: %s\n", optarg);
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return 1;
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}
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break;
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case 'p':
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if(atoi(optarg)==0 && strcmp(optarg,"0")!=0) {
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printf("bad port nr: %s\n", optarg);
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return 1;
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}
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bindport = atoi(optarg);
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break;
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case 'h':
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case '?':
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default:
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usage(argv);
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}
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}
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argc -= optind;
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argv += optind;
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if(argc != 0)
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usage(argv);
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printf("bind to %s @ %d and forward to %s\n"
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"after %d msec (buffer %d)\n",
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bindto, bindport, server, delay, (int)memsize);
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service(bindto, bindport, server, memsize, delay);
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return 0;
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}
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