Merge branch 'martins'
[sahlberg/ctdb.git] / tests / src / ctdb_transaction.c
1 /* 
2    simple tool to test persistent databases
3
4    Copyright (C) Andrew Tridgell  2006-2007
5    Copyright (c) Ronnie sahlberg  2007
6
7    This program is free software; you can redistribute it and/or modify
8    it under the terms of the GNU General Public License as published by
9    the Free Software Foundation; either version 3 of the License, or
10    (at your option) any later version.
11    
12    This program is distributed in the hope that it will be useful,
13    but WITHOUT ANY WARRANTY; without even the implied warranty of
14    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15    GNU General Public License for more details.
16    
17    You should have received a copy of the GNU General Public License
18    along with this program; if not, see <http://www.gnu.org/licenses/>.
19 */
20
21 #include "includes.h"
22 #include "lib/events/events.h"
23 #include "system/filesys.h"
24 #include "popt.h"
25 #include "cmdline.h"
26
27 #include <sys/time.h>
28 #include <time.h>
29
30 static struct timeval tp1,tp2;
31
32 static void start_timer(void)
33 {
34         gettimeofday(&tp1,NULL);
35 }
36
37 static double end_timer(void)
38 {
39         gettimeofday(&tp2,NULL);
40         return (tp2.tv_sec + (tp2.tv_usec*1.0e-6)) - 
41                 (tp1.tv_sec + (tp1.tv_usec*1.0e-6));
42 }
43
44 static int timelimit = 10;
45
46 static unsigned int pnn;
47
48 static TDB_DATA old_data;
49
50 static int success = true;
51
52 static void each_second(struct event_context *ev, struct timed_event *te, 
53                                          struct timeval t, void *private_data)
54 {
55         struct ctdb_context *ctdb = talloc_get_type(private_data, struct ctdb_context);
56         int i;
57         uint32_t *old_counters;
58
59
60         printf("[%4u] Counters: ", getpid());
61         old_counters = (uint32_t *)old_data.dptr;
62         for (i=0;i<old_data.dsize/sizeof(uint32_t); i++) {
63                 printf("%6u ", old_counters[i]);
64         }
65         printf("\n"); 
66
67         event_add_timed(ev, ctdb, timeval_current_ofs(1, 0), each_second, ctdb);
68 }
69
70 static void check_counters(struct ctdb_context *ctdb, TDB_DATA data)
71 {
72         int i;
73         uint32_t *counters, *old_counters;
74
75         counters     = (uint32_t *)data.dptr;
76         old_counters = (uint32_t *)old_data.dptr;
77
78         /* check that all the counters are monotonic increasing */
79         for (i=0; i<old_data.dsize/sizeof(uint32_t); i++) {
80                 if (counters[i]<old_counters[i]) {
81                         printf("[%4u] ERROR: counters has decreased for node %u  From %u to %u\n", 
82                                getpid(), i, old_counters[i], counters[i]);
83                         success = false;
84                 }
85         }
86
87         if (old_data.dsize != data.dsize) {
88                 old_data.dsize = data.dsize;
89                 old_data.dptr = talloc_realloc_size(ctdb, old_data.dptr, old_data.dsize);
90         }
91
92         memcpy(old_data.dptr, data.dptr, data.dsize);
93 }
94
95
96
97 static void test_store_records(struct ctdb_context *ctdb, struct event_context *ev)
98 {
99         TDB_DATA key;
100         struct ctdb_db_context *ctdb_db;
101         int ret;
102         uint32_t *counters;
103         ctdb_db = ctdb_db_handle(ctdb, "transaction.tdb");
104
105         key.dptr = discard_const("testkey");
106         key.dsize = strlen((const char *)key.dptr)+1;
107
108         start_timer();
109         while (end_timer() < timelimit) {
110                 TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
111                 TDB_DATA data;
112
113                 struct ctdb_transaction_handle *h;
114                 h = ctdb_transaction_start(ctdb_db, tmp_ctx);
115                 if (h == NULL) {
116                         printf("Failed to start transaction on node %d\n", 
117                                ctdb_get_pnn(ctdb));
118                         talloc_free(tmp_ctx);
119                         return;
120                 }
121
122                 ret = ctdb_transaction_fetch(h, tmp_ctx, key, &data);
123                 if (ret != 0) {
124                         DEBUG(DEBUG_ERR,("Failed to fetch record\n"));
125                         exit(1);                        
126                 }
127
128                 if (data.dsize < sizeof(uint32_t) * (pnn+1)) {
129                         unsigned char *ptr = data.dptr;
130
131                         data.dptr = talloc_zero_size(tmp_ctx, sizeof(uint32_t) * (pnn+1));
132                         memcpy(data.dptr, ptr, data.dsize);
133                         talloc_free(ptr);
134
135                         data.dsize = sizeof(uint32_t) * (pnn+1);
136                 }
137
138                 if (data.dptr == NULL) {
139                         printf("Failed to realloc array\n");
140                         talloc_free(tmp_ctx);
141                         return;
142                 }
143
144                 counters = (uint32_t *)data.dptr;
145
146                 /* bump our counter */
147                 counters[pnn]++;
148
149                 ret = ctdb_transaction_store(h, key, data);
150                 if (ret != 0) {
151                         DEBUG(DEBUG_ERR,("Failed to store record\n"));
152                         exit(1);
153                 }
154
155                 ret = ctdb_transaction_commit(h);
156                 if (ret != 0) {
157                         DEBUG(DEBUG_ERR,("Failed to commit transaction\n"));
158                         exit(1);
159                 }
160
161                 /* store the counters and verify that they are sane */
162                 if (pnn == 0) {
163                         check_counters(ctdb, data);
164                 }
165
166                 talloc_free(tmp_ctx);
167         }
168
169 }
170
171 /*
172   main program
173 */
174 int main(int argc, const char *argv[])
175 {
176         struct ctdb_context *ctdb;
177         struct ctdb_db_context *ctdb_db;
178         int unsafe_writes = 0;
179         struct poptOption popt_options[] = {
180                 POPT_AUTOHELP
181                 POPT_CTDB_CMDLINE
182                 { "timelimit", 't', POPT_ARG_INT, &timelimit, 0, "timelimit", "integer" },
183                 { "unsafe-writes", 'u', POPT_ARG_NONE, &unsafe_writes, 0, "do not use tdb transactions when writing", NULL },
184                 POPT_TABLEEND
185         };
186         int opt;
187         const char **extra_argv;
188         int extra_argc = 0;
189         poptContext pc;
190         struct event_context *ev;
191
192         setlinebuf(stdout);
193
194         pc = poptGetContext(argv[0], argc, argv, popt_options, POPT_CONTEXT_KEEP_FIRST);
195
196         while ((opt = poptGetNextOpt(pc)) != -1) {
197                 switch (opt) {
198                 default:
199                         fprintf(stderr, "Invalid option %s: %s\n", 
200                                 poptBadOption(pc, 0), poptStrerror(opt));
201                         exit(1);
202                 }
203         }
204
205         /* setup the remaining options for the main program to use */
206         extra_argv = poptGetArgs(pc);
207         if (extra_argv) {
208                 extra_argv++;
209                 while (extra_argv[extra_argc]) extra_argc++;
210         }
211
212         ev = event_context_init(NULL);
213
214         ctdb = ctdb_cmdline_client(ev);
215         if (ctdb == NULL) {
216                 printf("Could not attach to daemon\n");
217                 return 1;
218         }
219
220         /* attach to a specific database */
221         if (unsafe_writes == 1) {
222                 ctdb_db = ctdb_attach(ctdb, "transaction.tdb", true, TDB_NOSYNC);
223         } else {
224                 ctdb_db = ctdb_attach(ctdb, "transaction.tdb", true, 0);
225         }
226
227         if (!ctdb_db) {
228                 printf("ctdb_attach failed - %s\n", ctdb_errstr(ctdb));
229                 exit(1);
230         }
231
232         printf("Waiting for cluster\n");
233         while (1) {
234                 uint32_t recmode=1;
235                 ctdb_ctrl_getrecmode(ctdb, ctdb, timeval_zero(), CTDB_CURRENT_NODE, &recmode);
236                 if (recmode == 0) break;
237                 event_loop_once(ev);
238         }
239
240         pnn = ctdb_get_pnn(ctdb);
241         printf("Starting test on node %u. running for %u seconds\n", pnn, timelimit);
242
243         if (pnn == 0) {
244                 event_add_timed(ev, ctdb, timeval_current_ofs(1, 0), each_second, ctdb);
245         }
246
247         test_store_records(ctdb, ev);
248
249         if (pnn == 0) {
250                 if (success != true) {
251                         printf("The test FAILED\n");
252                         return 1;
253                 } else {
254                         printf("SUCCESS!\n");
255                 }
256         }
257         return 0;
258 }