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
|
#ifndef NODE_SQLITE3_SRC_DATABASE_H
#define NODE_SQLITE3_SRC_DATABASE_H
#include <assert.h>
#include <string>
#include <queue>
#include <sqlite3.h>
#include <napi.h>
#include "async.h"
using namespace Napi;
namespace node_sqlite3 {
class Database;
class Database : public Napi::ObjectWrap<Database> {
public:
#if NAPI_VERSION < 6
static Napi::FunctionReference constructor;
#endif
static Napi::Object Init(Napi::Env env, Napi::Object exports);
static inline bool HasInstance(Napi::Value val) {
Napi::Env env = val.Env();
Napi::HandleScope scope(env);
if (!val.IsObject()) return false;
Napi::Object obj = val.As<Napi::Object>();
#if NAPI_VERSION < 6
return obj.InstanceOf(constructor.Value());
#else
Napi::FunctionReference* constructor =
env.GetInstanceData<Napi::FunctionReference>();
return obj.InstanceOf(constructor->Value());
#endif
}
struct Baton {
napi_async_work request = NULL;
Database* db;
Napi::FunctionReference callback;
int status;
std::string message;
Baton(Database* db_, Napi::Function cb_) :
db(db_), status(SQLITE_OK) {
db->Ref();
if (!cb_.IsUndefined() && cb_.IsFunction()) {
callback.Reset(cb_, 1);
}
}
virtual ~Baton() {
if (request) napi_delete_async_work(db->Env(), request);
db->Unref();
callback.Reset();
}
};
struct OpenBaton : Baton {
std::string filename;
int mode;
OpenBaton(Database* db_, Napi::Function cb_, const char* filename_, int mode_) :
Baton(db_, cb_), filename(filename_), mode(mode_) {}
};
struct ExecBaton : Baton {
std::string sql;
ExecBaton(Database* db_, Napi::Function cb_, const char* sql_) :
Baton(db_, cb_), sql(sql_) {}
};
struct LoadExtensionBaton : Baton {
std::string filename;
LoadExtensionBaton(Database* db_, Napi::Function cb_, const char* filename_) :
Baton(db_, cb_), filename(filename_) {}
};
struct LimitBaton : Baton {
int id;
int value;
LimitBaton(Database* db_, Napi::Function cb_, int id_, int value_) :
Baton(db_, cb_), id(id_), value(value_) {}
};
typedef void (*Work_Callback)(Baton* baton);
struct Call {
Call(Work_Callback cb_, Baton* baton_, bool exclusive_ = false) :
callback(cb_), exclusive(exclusive_), baton(baton_) {};
Work_Callback callback;
bool exclusive;
Baton* baton;
};
struct ProfileInfo {
std::string sql;
sqlite3_int64 nsecs;
};
struct UpdateInfo {
int type;
std::string database;
std::string table;
sqlite3_int64 rowid;
};
bool IsOpen() { return open; }
bool IsLocked() { return locked; }
typedef Async<std::string, Database> AsyncTrace;
typedef Async<ProfileInfo, Database> AsyncProfile;
typedef Async<UpdateInfo, Database> AsyncUpdate;
friend class Statement;
friend class Backup;
void init() {
_handle = NULL;
open = false;
closing = false;
locked = false;
pending = 0;
serialize = false;
debug_trace = NULL;
debug_profile = NULL;
update_event = NULL;
}
Database(const Napi::CallbackInfo& info);
~Database() {
RemoveCallbacks();
sqlite3_close(_handle);
_handle = NULL;
open = false;
}
protected:
static void Work_BeginOpen(Baton* baton);
static void Work_Open(napi_env env, void* data);
static void Work_AfterOpen(napi_env env, napi_status status, void* data);
Napi::Value OpenGetter(const Napi::CallbackInfo& info);
void Schedule(Work_Callback callback, Baton* baton, bool exclusive = false);
void Process();
Napi::Value Exec(const Napi::CallbackInfo& info);
static void Work_BeginExec(Baton* baton);
static void Work_Exec(napi_env env, void* data);
static void Work_AfterExec(napi_env env, napi_status status, void* data);
Napi::Value Wait(const Napi::CallbackInfo& info);
static void Work_Wait(Baton* baton);
Napi::Value Close(const Napi::CallbackInfo& info);
static void Work_BeginClose(Baton* baton);
static void Work_Close(napi_env env, void* data);
static void Work_AfterClose(napi_env env, napi_status status, void* data);
Napi::Value LoadExtension(const Napi::CallbackInfo& info);
static void Work_BeginLoadExtension(Baton* baton);
static void Work_LoadExtension(napi_env env, void* data);
static void Work_AfterLoadExtension(napi_env env, napi_status status, void* data);
Napi::Value Serialize(const Napi::CallbackInfo& info);
Napi::Value Parallelize(const Napi::CallbackInfo& info);
Napi::Value Configure(const Napi::CallbackInfo& info);
Napi::Value Interrupt(const Napi::CallbackInfo& info);
static void SetBusyTimeout(Baton* baton);
static void SetLimit(Baton* baton);
static void RegisterTraceCallback(Baton* baton);
static void TraceCallback(void* db, const char* sql);
static void TraceCallback(Database* db, std::string* sql);
static void RegisterProfileCallback(Baton* baton);
static void ProfileCallback(void* db, const char* sql, sqlite3_uint64 nsecs);
static void ProfileCallback(Database* db, ProfileInfo* info);
static void RegisterUpdateCallback(Baton* baton);
static void UpdateCallback(void* db, int type, const char* database, const char* table, sqlite3_int64 rowid);
static void UpdateCallback(Database* db, UpdateInfo* info);
void RemoveCallbacks();
protected:
sqlite3* _handle;
bool open;
bool closing;
bool locked;
unsigned int pending;
bool serialize;
std::queue<Call*> queue;
AsyncTrace* debug_trace;
AsyncProfile* debug_profile;
AsyncUpdate* update_event;
};
}
#endif
|
