source: test/test-format-parallel-singlethreaded-hasher.c @ 6a082f8

4.0.1-hotfixescachetimestampsdevelopdpdk-ndagetsilivelibtrace4ndag_formatpfringrc-4.0.1rc-4.0.2rc-4.0.3rc-4.0.4ringdecrementfixringperformanceringtimestampfixes
Last change on this file since 6a082f8 was 6a082f8, checked in by Richard Sanger <rsangerarj@…>, 6 years ago

Move parallel API functions to libtrace_parallel.h

Also started the process of updating the documentation

  • Property mode set to 100644
File size: 7.0 KB
Line 
1/*
2 * This file is part of libtrace
3 *
4 * Copyright (c) 2007 The University of Waikato, Hamilton, New Zealand.
5 * Authors: Daniel Lawson
6 *          Perry Lorier
7 *         
8 * All rights reserved.
9 *
10 * This code has been developed by the University of Waikato WAND
11 * research group. For further information please see http://www.wand.net.nz/
12 *
13 * libtrace is free software; you can redistribute it and/or modify
14 * it under the terms of the GNU General Public License as published by
15 * the Free Software Foundation; either version 2 of the License, or
16 * (at your option) any later version.
17 *
18 * libtrace is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with libtrace; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
26 *
27 * $Id: test-rtclient.c,v 1.2 2006/02/27 03:41:12 perry Exp $
28 *
29 */
30#ifndef WIN32
31#  include <sys/time.h>
32#  include <netinet/in.h>
33#  include <netinet/in_systm.h>
34#  include <netinet/tcp.h>
35#  include <netinet/ip.h>
36#  include <netinet/ip_icmp.h>
37#  include <arpa/inet.h>
38#  include <sys/socket.h>
39#endif
40#include <stdio.h>
41#include <stdlib.h>
42#include <assert.h>
43#include <string.h>
44#include <sys/types.h>
45#include <time.h>
46#include <string.h>
47#include <signal.h>
48#include <unistd.h>
49
50#include "dagformat.h"
51#include "libtrace_parallel.h"
52#include "data-struct/vector.h"
53
54void iferr(libtrace_t *trace,const char *msg)
55{
56        libtrace_err_t err = trace_get_err(trace);
57        if (err.err_num==0)
58                return;
59        printf("Error: %s: %s\n", msg, err.problem);
60        exit(1);
61}
62
63const char *lookup_uri(const char *type) {
64        if (strchr(type,':'))
65                return type;
66        if (!strcmp(type,"erf"))
67                return "erf:traces/100_packets.erf";
68        if (!strcmp(type,"rawerf"))
69                return "rawerf:traces/100_packets.erf";
70        if (!strcmp(type,"pcap"))
71                return "pcap:traces/100_packets.pcap";
72        if (!strcmp(type,"wtf"))
73                return "wtf:traces/wed.wtf";
74        if (!strcmp(type,"rtclient"))
75                return "rtclient:chasm";
76        if (!strcmp(type,"pcapfile"))
77                return "pcapfile:traces/100_packets.pcap";
78        if (!strcmp(type,"pcapfilens"))
79                return "pcapfile:traces/100_packetsns.pcap";
80        if (!strcmp(type, "duck"))
81                return "duck:traces/100_packets.duck";
82        if (!strcmp(type, "legacyatm"))
83                return "legacyatm:traces/legacyatm.gz";
84        if (!strcmp(type, "legacypos"))
85                return "legacypos:traces/legacypos.gz";
86        if (!strcmp(type, "legacyeth"))
87                return "legacyeth:traces/legacyeth.gz";
88        if (!strcmp(type, "tsh"))
89                return "tsh:traces/10_packets.tsh.gz";
90        return type;
91}
92
93
94struct TLS {
95        bool seen_start_message;
96        bool seen_stop_message;
97        bool seen_resuming_message;
98        bool seen_pausing_message;
99        int count;
100};
101
102static int totalpkts = 0;
103static int expected;
104static void report_result(libtrace_t *trace UNUSED, int mesg,
105                          libtrace_generic_t data,
106                          libtrace_thread_t *sender UNUSED) {
107        static int totalthreads = 0;
108        switch (mesg) {
109        case MESSAGE_RESULT:
110                assert(libtrace_result_get_key(data.res) == 0);
111                printf("%d,", libtrace_result_get_value(data.res).sint);
112                totalthreads++;
113                totalpkts += libtrace_result_get_value(data.res).sint;
114                break;
115        case MESSAGE_STARTING:
116                // Should have a single thread here
117                assert(libtrace_get_perpkt_count(trace) == 1);
118                printf("\tLooks like %d threads are being used!\n\tcounts(", libtrace_get_perpkt_count(trace));
119                break;
120        case MESSAGE_STOPPING:
121                printf(")\n");
122                assert(totalthreads == libtrace_get_perpkt_count(trace));
123                break;
124        }
125}
126
127static int x;
128static void* per_packet(libtrace_t *trace, libtrace_thread_t *t,
129                        int mesg, libtrace_generic_t data,
130                        libtrace_thread_t *sender UNUSED) {
131        struct TLS *tls;
132        void* ret;
133        int a,*b,c=0;
134        tls = trace_get_tls(t);
135
136        switch (mesg) {
137        case MESSAGE_PACKET:
138                assert(tls != NULL);
139                assert(!(tls->seen_stop_message));
140                tls->count++;
141                if (tls->count>100) {
142                        fprintf(stderr, "Too many packets someone should stop me!!\n");
143                        kill(getpid(), SIGTERM);
144                }
145                // Do some work to even out the load on cores
146                b = &c;
147                for (a = 0; a < 10000000; a++) {
148                        c += a**b;
149                }
150                x = c;
151                return data.pkt;
152        case MESSAGE_STARTING:
153                assert(tls == NULL);
154                tls = calloc(sizeof(struct TLS), 1);
155                ret = trace_set_tls(t, tls);
156                assert(ret == NULL);
157                tls->seen_start_message = true;
158                break;
159        case MESSAGE_STOPPING:
160                assert(tls->seen_start_message);
161                assert(tls != NULL);
162                tls->seen_stop_message = true;
163                trace_set_tls(t, NULL);
164
165                // All threads publish to verify the thread count
166                trace_publish_result(trace, t, (uint64_t) 0, (libtrace_generic_t){.sint=tls->count}, RESULT_NORMAL);
167                trace_post_reporter(trace);
168                free(tls);
169                break;
170        case MESSAGE_TICK:
171                assert(tls->seen_start_message );
172                fprintf(stderr, "Not expecting a tick packet\n");
173                kill(getpid(), SIGTERM);
174                break;
175        case MESSAGE_PAUSING:
176                assert(tls->seen_start_message);
177                tls->seen_pausing_message = true;
178                break;
179        case MESSAGE_RESUMING:
180                assert(tls->seen_pausing_message || tls->seen_start_message);
181                tls->seen_resuming_message = true;
182                break;
183        }
184        return NULL;
185}
186
187/**
188 * Sends the first 25 packets to thread 0, the next 75 to thread 1
189 * This is based on a few internal workings assumptions, which
190 * might change and still be valid even if this test fails!!.
191 */
192uint64_t hash25_75(const libtrace_packet_t* packet UNUSED, void *data) {
193        int *count = (int *) data;
194        *count += 1;
195        if (*count <= 25)
196                return 0;
197        return 1;
198}
199
200/**
201 * Test that the hasher function works in single threaded mode
202 * It might not be called but this ensures consistency
203 */
204int test_hasher_singlethreaded(const char *tracename) {
205        libtrace_t *trace;
206        int error = 0;
207        int i;
208        int hashercount = 0;
209        printf("Testing hasher singlethreaded function\n");
210
211        // Create the trace
212        trace = trace_create(tracename);
213        iferr(trace,tracename);
214
215        // Use 1 thread with a hasher
216        i = 1;
217        trace_parallel_config(trace, TRACE_OPTION_SET_PERPKT_THREAD_COUNT, &i);
218        trace_set_hasher(trace, HASHER_CUSTOM, &hash25_75, &hashercount);
219
220        // Start it
221        trace_pstart(trace, NULL, per_packet, report_result);
222        iferr(trace,tracename);
223
224        /* Make sure traces survive a pause and restart */
225        trace_ppause(trace);
226        iferr(trace,tracename);
227        trace_pstart(trace, NULL, NULL, NULL);
228        iferr(trace,tracename);
229
230        /* Wait for all threads to stop */
231        trace_join(trace);
232
233        /* Now check we have all received all the packets */
234        if (error == 0) {
235                if (totalpkts == expected) {
236                        printf("success: %d packets read\n",expected);
237                } else {
238                        printf("failure: %d packets expected, %d seen\n",expected,totalpkts);
239                        error = 1;
240                }
241        } else {
242                iferr(trace,tracename);
243        }
244    trace_destroy(trace);
245    return error;
246}
247
248
249int main(int argc, char *argv[]) {
250        int error = 0;
251        const char *tracename;
252        expected = 100;
253
254        if (argc<2) {
255                fprintf(stderr,"usage: %s type\n",argv[0]);
256                return 1;
257        }
258
259        tracename = lookup_uri(argv[1]);
260
261        if (strcmp(argv[1],"rtclient")==0) expected=101;
262
263        error = test_hasher_singlethreaded(tracename);
264    return error;
265}
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