1 /* -*- mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- */
2 // vim: ft=cpp:expandtab:ts=8:sw=4:softtabstop=4:
3 #ident "$Id$"
4 /*======
5 This file is part of PerconaFT.
6
7
8 Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved.
9
10 PerconaFT is free software: you can redistribute it and/or modify
11 it under the terms of the GNU General Public License, version 2,
12 as published by the Free Software Foundation.
13
14 PerconaFT is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
21
22 ----------------------------------------
23
24 PerconaFT is free software: you can redistribute it and/or modify
25 it under the terms of the GNU Affero General Public License, version 3,
26 as published by the Free Software Foundation.
27
28 PerconaFT is distributed in the hope that it will be useful,
29 but WITHOUT ANY WARRANTY; without even the implied warranty of
30 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
31 GNU Affero General Public License for more details.
32
33 You should have received a copy of the GNU Affero General Public License
34 along with PerconaFT. If not, see <http://www.gnu.org/licenses/>.
35 ======= */
36
37 #ident "Copyright (c) 2006, 2015, Percona and/or its affiliates. All rights reserved."
38
39 // Verify that env->create_loader works correctly (does not crash, does not leak memory, returns the right error code)
40 // when the NPROC limit is exceeded.
41
42 #include "test.h"
43 #include <db.h>
44 #include <sys/resource.h>
45
46 static int loader_flags = 0;
47 static const char *envdir = TOKU_TEST_FILENAME;
48
run_test(int ndb)49 static void run_test(int ndb) {
50 int r;
51
52 char rmcmd[32 + strlen(envdir)];
53 snprintf(rmcmd, sizeof rmcmd, "rm -rf %s", envdir);
54 r = system(rmcmd); CKERR(r);
55 r = toku_os_mkdir(envdir, S_IRWXU+S_IRWXG+S_IRWXO); CKERR(r);
56
57 DB_ENV *env;
58 r = db_env_create(&env, 0); CKERR(r);
59 int envflags = DB_INIT_LOCK | DB_INIT_LOG | DB_INIT_MPOOL | DB_INIT_TXN | DB_CREATE | DB_PRIVATE;
60 r = env->open(env, envdir, envflags, S_IRWXU+S_IRWXG+S_IRWXO); CKERR(r);
61 env->set_errfile(env, stderr);
62
63 DB *dbs[ndb];
64 uint32_t db_flags[ndb];
65 uint32_t dbt_flags[ndb];
66 for (int i = 0; i < ndb; i++) {
67 db_flags[i] = DB_NOOVERWRITE;
68 dbt_flags[i] = 0;
69 r = db_create(&dbs[i], env, 0); CKERR(r);
70 char name[32];
71 sprintf(name, "db%d", i);
72 r = dbs[i]->open(dbs[i], NULL, name, NULL, DB_BTREE, DB_CREATE, 0666); CKERR(r);
73 }
74
75 DB_TXN *txn;
76 r = env->txn_begin(env, NULL, &txn, 0); CKERR(r);
77
78 struct rlimit current_nproc_limit;
79 r = getrlimit(RLIMIT_NPROC, ¤t_nproc_limit);
80 assert(r == 0);
81
82 struct rlimit new_nproc_limit = current_nproc_limit;
83 new_nproc_limit.rlim_cur = 0;
84 r = setrlimit(RLIMIT_NPROC, &new_nproc_limit);
85 assert(r == 0);
86
87 DB_LOADER *loader;
88 int loader_r = env->create_loader(env, txn, &loader, ndb > 0 ? dbs[0] : NULL, ndb, dbs, db_flags, dbt_flags, loader_flags);
89
90 r = setrlimit(RLIMIT_NPROC, ¤t_nproc_limit);
91 assert(r == 0);
92
93 if (loader_flags & LOADER_DISALLOW_PUTS) {
94 CKERR(loader_r);
95 loader_r = loader->close(loader);
96 CKERR(loader_r);
97 } else {
98 CKERR2(loader_r, EAGAIN);
99 }
100
101 r = txn->abort(txn); CKERR(r);
102
103 for (int i = 0; i < ndb; i++) {
104 r = dbs[i]->close(dbs[i], 0); CKERR(r);
105 }
106
107 r = env->close(env, 0); CKERR(r);
108 }
109
do_args(int argc,char * const argv[])110 static void do_args(int argc, char * const argv[]) {
111 int resultcode;
112 char *cmd = argv[0];
113 argc--; argv++;
114 while (argc>0) {
115 if (strcmp(argv[0], "-h")==0) {
116 resultcode=0;
117 do_usage:
118 fprintf(stderr, "Usage: %s -h -v -q -p\n", cmd);
119 exit(resultcode);
120 } else if (strcmp(argv[0], "-v")==0) {
121 verbose++;
122 } else if (strcmp(argv[0],"-q")==0) {
123 verbose--;
124 if (verbose<0) verbose=0;
125 } else if (strcmp(argv[0], "-p") == 0) {
126 loader_flags |= LOADER_DISALLOW_PUTS;
127 } else if (strcmp(argv[0], "-z") == 0) {
128 loader_flags |= LOADER_COMPRESS_INTERMEDIATES;
129 } else if (strcmp(argv[0], "-e") == 0) {
130 argc--; argv++;
131 if (argc > 0)
132 envdir = argv[0];
133 } else {
134 fprintf(stderr, "Unknown arg: %s\n", argv[0]);
135 resultcode=1;
136 goto do_usage;
137 }
138 argc--;
139 argv++;
140 }
141 }
142
test_main(int argc,char * const * argv)143 int test_main(int argc, char * const *argv) {
144 do_args(argc, argv);
145 run_test(1);
146 return 0;
147 }
148