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
173
174
175
176
177
178
179
180
181
182
|
/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef ODBC_COMMON_Ctx_hpp
#define ODBC_COMMON_Ctx_hpp
#include <NdbDictionary.hpp>
class Ndb;
class NdbConnection;
class NdbOperation;
class NdbSchemaCon;
class NdbSchemaOp;
class NdbError;
class Sqlstate;
class DiagArea;
class CtxOwner;
#ifndef MAX_PATH
#define MAX_PATH 1024
#endif
/**
* @class Error
* @brief Sql state, error codes, and message
*/
struct Error {
enum {
Gen = NDB_ODBC_ERROR_MIN + 1 // unclassified
};
explicit Error(const Sqlstate& sqlstate);
const Sqlstate& m_sqlstate;
int m_status;
int m_classification;
int m_code;
const char* m_message;
const char* m_sqlFunction;
bool driverError() const;
};
inline
Error::Error(const Sqlstate& sqlstate) :
m_sqlstate(sqlstate),
m_status(0),
m_classification(0),
m_code(0),
m_sqlFunction(0)
{
}
inline bool
Error::driverError() const
{
return NDB_ODBC_ERROR_MIN <= m_code && m_code < NDB_ODBC_ERROR_MAX;
}
#define ctx_assert(x) \
do { if (x) break; throw CtxAssert(__FILE__, __LINE__); } while (0)
/**
* @class Assert
* @brief Assert thrown
*/
class CtxAssert {
public:
CtxAssert(const char* file, int line);
const char* const m_file;
const int m_line;
};
/**
* @class Ctx
* @brief Context for one ODBC SQL function
*
* Local to the function (not member of the handle) because methods on
* a handle can call methods on other handles. Created in driver/
* before method calls and saved under the handle on return. Contains
* diag area for the function. Also used as logger.
*/
class Ctx {
public:
Ctx();
~Ctx();
// handle exceptions
void handleEx(CtxAssert& ctxAssert);
// logging methods
int logLevel() const;
void log(const char* fmt, ...) PRINTFLIKE(2,3);
void logSqlEnter(const char* sqlFunction);
void logSqlExit();
const char* sqlFunction() const;
void print(const char* fmt, ...) PRINTFLIKE(2,3);
void print(int level, const char* fmt, ...) PRINTFLIKE(3,4);
// diagnostics area.
DiagArea& diagArea() const;
DiagArea& diagArea();
SQLRETURN getCode() const;
void setCode(SQLRETURN ret);
// push diagnostic record
void pushStatus(const Sqlstate& state, SQLINTEGER code, const char* fmt, ...) PRINTFLIKE(4,5);
void pushStatus(SQLINTEGER code, const char* fmt, ...) PRINTFLIKE(3,4);
void pushStatus(const NdbError& ndbError, const char* fmt, ...) PRINTFLIKE(3,4);
void pushStatus(const Ndb* ndb, const char* fmt, ...) PRINTFLIKE(3,4);
void pushStatus(const Ndb* ndb, const NdbConnection* tcon, const NdbOperation* op, const char* fmt, ...) PRINTFLIKE(5,6);
void pushStatus(const Ndb* ndb, const NdbSchemaCon* scon, const NdbSchemaOp* op, const char* fmt, ...) PRINTFLIKE(5,6);
// check if we should continue executing.
bool ok();
private:
static int m_logLevel;
static char m_szTraceFile[MAX_PATH];
char m_sqlFunction[32]; // max needed is 20
DiagArea* m_diagArea;
};
inline int
Ctx::logLevel() const
{
return m_logLevel;
}
inline const char*
Ctx::sqlFunction() const
{
return m_sqlFunction;
}
// logging macros can be used only when ctx is in scope
#define ctx_logN(n, x) \
do { if (ctx.logLevel() < (n)) break; ctx.log x; } while (0)
#if NDB_ODBC_MAX_LOG_LEVEL >= 0
#define ctx_log0(x) ctx_logN(0, x)
#else
#define ctx_log0(x)
#endif
#if NDB_ODBC_MAX_LOG_LEVEL >= 1
#define ctx_log1(x) ctx_logN(1, x)
#else
#define ctx_log1(x)
#endif
#if NDB_ODBC_MAX_LOG_LEVEL >= 2
#define ctx_log2(x) ctx_logN(2, x)
#else
#define ctx_log2(x)
#endif
#if NDB_ODBC_MAX_LOG_LEVEL >= 3
#define ctx_log3(x) ctx_logN(3, x)
#else
#define ctx_log3(x)
#endif
#if NDB_ODBC_MAX_LOG_LEVEL >= 4
#define ctx_log4(x) ctx_logN(4, x)
#else
#define ctx_log4(x)
#endif
#if NDB_ODBC_MAX_LOG_LEVEL >= 5
#define ctx_log5(x) ctx_logN(5, x)
#else
#define ctx_log5(x)
#endif
#endif
|
