forked from ibmdb/node-ibm_db
-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathodbc.h
241 lines (200 loc) · 9.15 KB
/
odbc.h
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
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
/*
Copyright (c) 2013, Dan VerWeire <dverweire@gmail.com>
Copyright (c) 2010, Lee Smith <notwink@gmail.com>
Permission to use, copy, modify, and/or distribute this software for any
purpose with or without fee is hereby granted, provided that the above
copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef _SRC_ODBC_H
#define _SRC_ODBC_H
#include <v8.h>
#include <node.h>
#include <wchar.h>
#include <stdlib.h>
#ifdef dynodbc
#include "dynodbc.h"
#else
#include <sqlcli1.h>
#endif
using namespace v8;
using namespace node;
#define MAX_FIELD_SIZE 1024
#define MAX_VALUE_SIZE 1048576
#define MODE_COLLECT_AND_CALLBACK 1
#define MODE_CALLBACK_FOR_EACH 2
#define FETCH_ARRAY 3
#define FETCH_OBJECT 4
#define SQL_DESTROY 9999
typedef struct {
unsigned char *name;
unsigned char *type_name;
unsigned int len;
SQLLEN type;
SQLUSMALLINT index;
} Column;
typedef struct {
SQLSMALLINT c_type;
SQLSMALLINT type;
SQLLEN size;
void *buffer;
SQLLEN buffer_length;
SQLLEN length;
SQLSMALLINT decimals;
} Parameter;
class ODBC : public node::ObjectWrap {
public:
static Persistent<FunctionTemplate> constructor_template;
static uv_mutex_t g_odbcMutex;
static uv_async_t g_async;
static void Init(v8::Handle<Object> target);
static Column* GetColumns(SQLHSTMT hStmt, short* colCount);
static void FreeColumns(Column* columns, short* colCount);
static Handle<Value> GetColumnValue(SQLHSTMT hStmt, Column column, uint16_t* buffer, int bufferLength);
static Local<Object> GetRecordTuple (SQLHSTMT hStmt, Column* columns, short* colCount, uint16_t* buffer, int bufferLength);
static Handle<Value> GetRecordArray (SQLHSTMT hStmt, Column* columns, short* colCount, uint16_t* buffer, int bufferLength);
static Handle<Value> CallbackSQLError (SQLSMALLINT handleType, SQLHANDLE handle, Persistent<Function> cb);
static Handle<Value> CallbackSQLError (SQLSMALLINT handleType, SQLHANDLE handle, char* message, Persistent<Function> cb);
static Local<Object> GetSQLError (SQLSMALLINT handleType, SQLHANDLE handle);
static Local<Object> GetSQLError (SQLSMALLINT handleType, SQLHANDLE handle, char* message);
static Local<Array> GetAllRecordsSync (HENV hENV, HDBC hDBC, HSTMT hSTMT, uint16_t* buffer, int bufferLength);
#ifdef dynodbc
static Handle<Value> LoadODBCLibrary(const Arguments& args);
#endif
static Parameter* GetParametersFromArray (Local<Array> values, int* paramCount);
void Free();
protected:
ODBC() {}
~ODBC();
static Handle<Value> New(const Arguments& args);
//async methods
static Handle<Value> CreateConnection(const Arguments& args);
static void UV_CreateConnection(uv_work_t* work_req);
static void UV_AfterCreateConnection(uv_work_t* work_req, int status);
static void WatcherCallback(uv_async_t* w, int revents);
//sync methods
static Handle<Value> CreateConnectionSync(const Arguments& args);
ODBC *self(void) { return this; }
protected:
HENV m_hEnv;
};
struct create_connection_work_data {
Persistent<Function> cb;
ODBC *dbo;
HDBC hDBC;
int result;
};
struct open_request {
Persistent<Function> cb;
ODBC *dbo;
int result;
char connection[1];
};
struct close_request {
Persistent<Function> cb;
ODBC *dbo;
int result;
};
struct query_request {
Persistent<Function> cb;
ODBC *dbo;
HSTMT hSTMT;
int affectedRows;
char *sql;
char *catalog;
char *schema;
char *table;
char *type;
char *column;
Parameter *params;
int paramCount;
int result;
};
#ifdef UNICODE
#define SQL_T(x) (L##x)
#else
#define SQL_T(x) (x)
#endif
#ifdef DEBUG
#define DEBUG_PRINTF(...) fprintf(stdout, __VA_ARGS__)
#ifdef UNICODE
#define DEBUG_TPRINTF(...) fwprintf(stdout, __VA_ARGS__)
#else
#define DEBUG_TPRINTF(...) fprintf(stdout, __VA_ARGS__)
#endif
#else
#define DEBUG_PRINTF(...) (void)0
#define DEBUG_TPRINTF(...) (void)0
#endif
#define REQ_ARGS(N) \
if (args.Length() < (N)) \
return ThrowException(Exception::TypeError( \
String::New("Expected " #N "arguments")));
//Require String Argument; Save String as Utf8
#define REQ_STR_ARG(I, VAR) \
if (args.Length() <= (I) || !args[I]->IsString()) \
return ThrowException(Exception::TypeError( \
String::New("Argument " #I " must be a string"))); \
String::Utf8Value VAR(args[I]->ToString());
//Require String Argument; Save String as Wide String (UCS2)
#define REQ_WSTR_ARG(I, VAR) \
if (args.Length() <= (I) || !args[I]->IsString()) \
return ThrowException(Exception::TypeError( \
String::New("Argument " #I " must be a string"))); \
String::Value VAR(args[I]->ToString());
//Require String Argument; Save String as Object
#define REQ_STRO_ARG(I, VAR) \
if (args.Length() <= (I) || !args[I]->IsString()) \
return ThrowException(Exception::TypeError( \
String::New("Argument " #I " must be a string"))); \
Local<String> VAR(args[I]->ToString());
//Require String or Null Argument; Save String as Utf8
#define REQ_STR_OR_NULL_ARG(I, VAR) \
if ( args.Length() <= (I) || (!args[I]->IsString() && !args[I]->IsNull()) ) \
return ThrowException(Exception::TypeError( \
String::New("Argument " #I " must be a string or null"))); \
String::Utf8Value VAR(args[I]->ToString());
//Require String or Null Argument; Save String as Wide String (UCS2)
#define REQ_WSTR_OR_NULL_ARG(I, VAR) \
if ( args.Length() <= (I) || (!args[I]->IsString() && !args[I]->IsNull()) ) \
return ThrowException(Exception::TypeError( \
String::New("Argument " #I " must be a string or null"))); \
String::Value VAR(args[I]->ToString());
//Require String or Null Argument; save String as String Object
#define REQ_STRO_OR_NULL_ARG(I, VAR) \
if ( args.Length() <= (I) || (!args[I]->IsString() && !args[I]->IsNull()) ) \
return ThrowException(Exception::TypeError( \
String::New("Argument " #I " must be a string or null"))); \
Local<String> VAR(args[I]->ToString());
#define REQ_FUN_ARG(I, VAR) \
if (args.Length() <= (I) || !args[I]->IsFunction()) \
return ThrowException(Exception::TypeError( \
String::New("Argument " #I " must be a function"))); \
Local<Function> VAR = Local<Function>::Cast(args[I]);
#define REQ_BOOL_ARG(I, VAR) \
if (args.Length() <= (I) || !args[I]->IsBoolean()) \
return ThrowException(Exception::TypeError( \
String::New("Argument " #I " must be a boolean"))); \
Local<Boolean> VAR = (args[I]->ToBoolean());
#define REQ_EXT_ARG(I, VAR) \
if (args.Length() <= (I) || !args[I]->IsExternal()) \
return ThrowException(Exception::TypeError( \
String::New("Argument " #I " invalid"))); \
Local<External> VAR = Local<External>::Cast(args[I]);
#define OPT_INT_ARG(I, VAR, DEFAULT) \
int VAR; \
if (args.Length() <= (I)) { \
VAR = (DEFAULT); \
} else if (args[I]->IsInt32()) { \
VAR = args[I]->Int32Value(); \
} else { \
return ThrowException(Exception::TypeError( \
String::New("Argument " #I " must be an integer"))); \
}
#endif