190 lines
4.8 KiB
C++
190 lines
4.8 KiB
C++
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#ifndef NODE_SQLITE3_SRC_DATABASE_H
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#define NODE_SQLITE3_SRC_DATABASE_H
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#include <node.h>
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#include <string>
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#include <queue>
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#include <sqlite3.h>
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#include "nan.h"
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#include "async.h"
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using namespace v8;
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using namespace node;
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namespace node_sqlite3 {
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class Database;
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class Database : public ObjectWrap {
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public:
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static Persistent<FunctionTemplate> constructor_template;
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static void Init(Handle<Object> target);
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static inline bool HasInstance(Handle<Value> val) {
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NanScope();
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if (!val->IsObject()) return false;
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Local<Object> obj = val->ToObject();
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return NanNew(constructor_template)->HasInstance(obj);
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}
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struct Baton {
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uv_work_t request;
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Database* db;
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Persistent<Function> callback;
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int status;
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std::string message;
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Baton(Database* db_, Handle<Function> cb_) :
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db(db_), status(SQLITE_OK) {
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db->Ref();
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request.data = this;
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NanAssignPersistent(callback, cb_);
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}
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virtual ~Baton() {
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db->Unref();
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NanDisposePersistent(callback);
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}
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};
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struct OpenBaton : Baton {
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std::string filename;
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int mode;
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OpenBaton(Database* db_, Handle<Function> cb_, const char* filename_, int mode_) :
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Baton(db_, cb_), filename(filename_), mode(mode_) {}
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};
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struct ExecBaton : Baton {
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std::string sql;
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ExecBaton(Database* db_, Handle<Function> cb_, const char* sql_) :
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Baton(db_, cb_), sql(sql_) {}
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};
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struct LoadExtensionBaton : Baton {
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std::string filename;
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LoadExtensionBaton(Database* db_, Handle<Function> cb_, const char* filename_) :
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Baton(db_, cb_), filename(filename_) {}
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};
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typedef void (*Work_Callback)(Baton* baton);
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struct Call {
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Call(Work_Callback cb_, Baton* baton_, bool exclusive_ = false) :
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callback(cb_), exclusive(exclusive_), baton(baton_) {};
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Work_Callback callback;
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bool exclusive;
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Baton* baton;
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};
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struct ProfileInfo {
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std::string sql;
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sqlite3_int64 nsecs;
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};
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struct UpdateInfo {
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int type;
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std::string database;
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std::string table;
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sqlite3_int64 rowid;
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};
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bool IsOpen() { return open; }
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bool IsLocked() { return locked; }
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typedef Async<std::string, Database> AsyncTrace;
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typedef Async<ProfileInfo, Database> AsyncProfile;
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typedef Async<UpdateInfo, Database> AsyncUpdate;
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friend class Statement;
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protected:
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Database() : ObjectWrap(),
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_handle(NULL),
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open(false),
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locked(false),
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pending(0),
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serialize(false),
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debug_trace(NULL),
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debug_profile(NULL),
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update_event(NULL) {
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}
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~Database() {
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RemoveCallbacks();
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sqlite3_close(_handle);
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_handle = NULL;
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open = false;
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}
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static NAN_METHOD(New);
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static void Work_BeginOpen(Baton* baton);
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static void Work_Open(uv_work_t* req);
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static void Work_AfterOpen(uv_work_t* req);
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static NAN_GETTER(OpenGetter);
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void Schedule(Work_Callback callback, Baton* baton, bool exclusive = false);
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void Process();
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static NAN_METHOD(Exec);
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static void Work_BeginExec(Baton* baton);
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static void Work_Exec(uv_work_t* req);
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static void Work_AfterExec(uv_work_t* req);
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static NAN_METHOD(Wait);
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static void Work_Wait(Baton* baton);
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static NAN_METHOD(Close);
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static void Work_BeginClose(Baton* baton);
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static void Work_Close(uv_work_t* req);
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static void Work_AfterClose(uv_work_t* req);
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static NAN_METHOD(LoadExtension);
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static void Work_BeginLoadExtension(Baton* baton);
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static void Work_LoadExtension(uv_work_t* req);
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static void Work_AfterLoadExtension(uv_work_t* req);
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static NAN_METHOD(Serialize);
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static NAN_METHOD(Parallelize);
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static NAN_METHOD(Configure);
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static void SetBusyTimeout(Baton* baton);
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static void RegisterTraceCallback(Baton* baton);
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static void TraceCallback(void* db, const char* sql);
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static void TraceCallback(Database* db, std::string* sql);
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static void RegisterProfileCallback(Baton* baton);
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static void ProfileCallback(void* db, const char* sql, sqlite3_uint64 nsecs);
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static void ProfileCallback(Database* db, ProfileInfo* info);
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static void RegisterUpdateCallback(Baton* baton);
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static void UpdateCallback(void* db, int type, const char* database, const char* table, sqlite3_int64 rowid);
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static void UpdateCallback(Database* db, UpdateInfo* info);
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void RemoveCallbacks();
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protected:
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sqlite3* _handle;
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bool open;
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bool locked;
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unsigned int pending;
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bool serialize;
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std::queue<Call*> queue;
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AsyncTrace* debug_trace;
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AsyncProfile* debug_profile;
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AsyncUpdate* update_event;
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};
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}
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#endif
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