1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
|
/* -*- mode: C; c-basic-offset: 4; indent-tabs-mode: nil -*- */
// vim: expandtab:ts=8:sw=4:softtabstop=4:
#ident "Copyright (c) 2007-2013 Tokutek Inc. All rights reserved."
#ident "The technology is licensed by the Massachusetts Institute of Technology, Rutgers State University of New Jersey, and the Research Foundation of State University of New York at Stony Brook under United States of America Serial No. 11/760379 and to the patents and/or patent applications resulting from it."
#include <stdarg.h>
#include <errno.h>
#include <toku_assert.h>
#include "../ft/fttypes.h"
#include <db_cxx.h>
DbEnv::DbEnv (u_int32_t flags)
: do_no_exceptions((flags&DB_CXX_NO_EXCEPTIONS)!=0),
errcall(NULL)
{
int ret = db_env_create(&the_env, flags & ~DB_CXX_NO_EXCEPTIONS);
assert(ret==0); // should do an error.
the_env->api1_internal = this;
}
DbEnv::DbEnv(DB_ENV *env, u_int32_t flags)
: do_no_exceptions((flags&DB_CXX_NO_EXCEPTIONS)!=0), _error_stream(0)
{
the_env = env;
if (env == 0) {
DB_ENV *new_env;
int ret = db_env_create(&new_env, flags & ~DB_CXX_NO_EXCEPTIONS);
assert(ret==0); // should do an error.
the_env = new_env;
}
the_env->api1_internal = this;
}
// If still open, close it. In most cases, the caller should call close explicitly so that they can catch the exceptions.
DbEnv::~DbEnv(void)
{
if (the_env!=NULL) {
(void)the_env->close(the_env, 0);
the_env = 0;
}
}
int DbEnv::close(u_int32_t flags) {
int ret = EINVAL;
if (the_env)
ret = the_env->close(the_env, flags);
the_env = 0; /* get rid of the env ref, so we don't touch it (even if we failed, or when the destructor is called) */
return maybe_throw_error(ret);
}
int DbEnv::open(const char *home, u_int32_t flags, int mode) {
int ret = the_env->open(the_env, home, flags, mode);
return maybe_throw_error(ret);
}
int DbEnv::set_cachesize(u_int32_t gbytes, u_int32_t bytes, int ncache) {
int ret = the_env->set_cachesize(the_env, gbytes, bytes, ncache);
return maybe_throw_error(ret);
}
int DbEnv::set_redzone(u_int32_t percent) {
int ret = the_env->set_redzone(the_env, percent);
return maybe_throw_error(ret);
}
int DbEnv::set_flags(u_int32_t flags, int onoff) {
int ret = the_env->set_flags(the_env, flags, onoff);
return maybe_throw_error(ret);
}
#if DB_VERSION_MAJOR<4 || (DB_VERSION_MAJOR==4 && DB_VERSION_MINOR<=4)
int DbEnv::set_lk_max(u_int32_t flags) {
int ret = the_env->set_lk_max(the_env, flags);
return maybe_throw_error(ret);
}
#endif
int DbEnv::txn_begin(DbTxn *parenttxn, DbTxn **txnp, u_int32_t flags) {
DB_TXN *txn;
int ret = the_env->txn_begin(the_env, parenttxn->get_DB_TXN(), &txn, flags);
if (ret==0) {
*txnp = new DbTxn(txn);
}
return maybe_throw_error(ret);
}
int DbEnv::set_default_bt_compare(bt_compare_fcn_type bt_compare_fcn) {
int ret = the_env->set_default_bt_compare(the_env, bt_compare_fcn);
return maybe_throw_error(ret);
}
int DbEnv::set_data_dir(const char *dir) {
int ret = the_env->set_data_dir(the_env, dir);
return maybe_throw_error(ret);
}
void DbEnv::set_errpfx(const char *errpfx) {
the_env->set_errpfx(the_env, errpfx);
}
int DbEnv::maybe_throw_error(int err, DbEnv *env, int no_exceptions) throw (DbException) {
if (err==0 || err==DB_NOTFOUND || err==DB_KEYEXIST) return err;
if (no_exceptions) return err;
if (err==DB_LOCK_DEADLOCK) {
DbDeadlockException e(env);
throw e;
} else {
DbException e(err);
e.set_env(env);
throw e;
}
}
int DbEnv::maybe_throw_error(int err) throw (DbException) {
return maybe_throw_error(err, this, do_no_exceptions);
}
extern "C" void toku_ydb_error_all_cases(const DB_ENV * env,
int error,
BOOL include_stderrstring,
BOOL use_stderr_if_nothing_else,
const char *fmt, va_list ap);
void DbEnv::err(int error, const char *fmt, ...) {
va_list ap;
va_start(ap, fmt);
toku_ydb_error_all_cases(the_env, error, TRUE, TRUE, fmt, ap);
va_end(ap);
}
void DbEnv::set_errfile(FILE *errfile) {
the_env->set_errfile(the_env, errfile);
}
int DbEnv::get_flags(u_int32_t *flagsp) {
int ret = the_env->get_flags(the_env, flagsp);
return maybe_throw_error(ret);
}
extern "C" void toku_db_env_errcall_c(const DB_ENV *dbenv_c, const char *errpfx, const char *msg) {
DbEnv *dbenv = (DbEnv *) dbenv_c->api1_internal;
dbenv->errcall(dbenv, errpfx, msg);
}
void DbEnv::set_errcall(void (*db_errcall_fcn)(const DbEnv *, const char *, const char *)) {
errcall = db_errcall_fcn;
the_env->set_errcall(the_env, toku_db_env_errcall_c);
}
extern "C" void toku_db_env_error_stream_c(const DB_ENV *dbenv_c, const char *errpfx, const char *msg) {
DbEnv *dbenv = (DbEnv *) dbenv_c->api1_internal;
if (dbenv->_error_stream) {
if (errpfx) *(dbenv->_error_stream) << errpfx;
if (msg) *(dbenv->_error_stream) << ":" << msg << "\n";
}
}
void DbEnv::set_error_stream(std::ostream *new_error_stream) {
_error_stream = new_error_stream;
the_env->set_errcall(the_env, toku_db_env_error_stream_c);
}
int DbEnv::set_lk_max_locks(u_int32_t max_locks) {
int ret = the_env->set_lk_max_locks(the_env, max_locks);
return maybe_throw_error(ret);
}
int DbEnv::get_lk_max_locks(u_int32_t *max_locks) {
int ret = the_env->get_lk_max_locks(the_env, max_locks);
return maybe_throw_error(ret);
}
|
