node-sqlanywhere/src/utils.cpp at master · ambelovsky/node-sqlanywhere · GitHub

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// ***************************************************************************

#include "nodever_cover.h"

#include "sqlany_utils.h"

#include "nan.h"

#if !v010

using namespace v8;

using namespace node;

void getErrorMsg( int code, std::string &str )

/********************************************/

{

std::ostringstream message;

message << "Code: ";

message << code;

message << " Msg: ";

switch( code ) {

case JS_ERR_INVALID_OBJECT:

message << "Invalid Object";

break;

case JS_ERR_INVALID_ARGUMENTS:

message << "Invalid Arguments";

break;

case JS_ERR_CONNECTION_ALREADY_EXISTS:

message << "Already Connected";

break;

case JS_ERR_INITIALIZING_DBCAPI:

message << "Can't initialize DBCAPI";

break;

case JS_ERR_NOT_CONNECTED:

message << "No Connection Available";

break;

case JS_ERR_BINDING_PARAMETERS:

message << "Can not bind parameter(s)";

break;

case JS_ERR_GENERAL_ERROR:

message << "An error occurred";

break;

case JS_ERR_RESULTSET:

message << "Error making result set Object";

break;

case JS_ERR_NO_WIDE_STATEMENTS:

message << "The DBCAPI library must be upgraded to support wide statements";

break;

default:

message << "Unknown Error";

}

str = message.str();

}

void getErrorMsg( a_sqlany_connection *conn, std::string &str )

/*************************************************************/

{

char buffer[SACAPI_ERROR_SIZE];

int rc;

rc = api.sqlany_error( conn, buffer, sizeof(buffer) );

std::ostringstream message;

message << "Code: ";

message << rc;

message << " Msg: ";

message << buffer;

str = message.str();

}

void throwError( a_sqlany_connection *conn )

/******************************************/

{

Isolate *isolate = Isolate::GetCurrent();

std::string message;

getErrorMsg( conn, message );

isolate->ThrowException(

Exception::Error( String::NewFromUtf8( isolate, message.c_str() ) ) );

}

void throwError( int code )

/*************************/

{

Isolate *isolate = Isolate::GetCurrent();

std::string message;

getErrorMsg( code, message );

isolate->ThrowException(

Exception::Error( String::NewFromUtf8( isolate, message.c_str() ) ) );

}

void callBack( std::string * str,

Persistent<Function> & callback,

Local<Value> & Result,

bool callback_required )

/*********************************************************/

{

Isolate *isolate = Isolate::GetCurrent();

HandleScope scope( isolate );

Local<Function> local_callback = Local<Function>::New( isolate, callback );

// If string is NULL, then there is no error

if( callback_required ) {

if( !local_callback->IsFunction() ) {

throwError( JS_ERR_INVALID_ARGUMENTS );

return;

}

Local<Value> Err;

if( str == NULL ) {

Err = Local<Value>::New( isolate, Undefined( isolate ) );

} else {

Err = Exception::Error( String::NewFromUtf8( isolate, str->c_str() ) );

}

int argc = 2;

Local<Value> argv[2] = { Err, Result };

#if v012

TryCatch try_catch;

#else

TryCatch try_catch( isolate );

#endif

//local_callback->Call( isolate->GetCurrentContext()->Global(), argc, argv );

Nan::Callback *cb = new Nan::Callback( local_callback );

cb->Call( argc, argv );

if( try_catch.HasCaught()) {

node::FatalException( isolate, try_catch );

}

} else {

if( str != NULL ) {

isolate->ThrowException(

Exception::Error( String::NewFromUtf8( isolate, str->c_str() ) ) );

}

void callBack( std::string * str,

Persistent<Function> & callback,

Persistent<Value> & Result,

bool callback_required )

/*********************************************************/

{

Isolate *isolate = Isolate::GetCurrent();

HandleScope scope( isolate );

Local<Value> local_result = Local<Value>::New( isolate, Result );

callBack( str, callback, local_result, callback_required );

}

void callBack( std::string * str,

const Local<Value> & arg,

Local<Value> & Result,

bool callback_required )

/*********************************************************/

{

Isolate *isolate = Isolate::GetCurrent();

HandleScope scope( isolate );

// If string is NULL, then there is no error

if( callback_required ) {

if( !arg->IsFunction() ) {

throwError( JS_ERR_INVALID_ARGUMENTS );

return;

}

Local<Function> callback = Local<Function>::Cast(arg);

Local<Value> Err;

if( str == NULL ) {

Err = Local<Value>::New( isolate, Undefined( isolate ) );

} else {

Err = Exception::Error( String::NewFromUtf8( isolate, str->c_str() ) );

}

int argc = 2;

Local<Value> argv[2] = { Err, Result };

#if v012

TryCatch try_catch;

#else

TryCatch try_catch( isolate );

#endif

//callback->Call( isolate->GetCurrentContext()->Global(), argc, argv );

Nan::Callback *cb = new Nan::Callback( callback );

cb->Call( argc, argv );

if( try_catch.HasCaught()) {

node::FatalException( isolate, try_catch );

}

} else {

if( str != NULL ) {

isolate->ThrowException(

Exception::Error( String::NewFromUtf8( isolate, str->c_str() ) ) );

}

static bool getWideBindParameters( std::vector<ExecuteData *> &execData,

Handle<Value> arg,

std::vector<a_sqlany_bind_param> & params,

unsigned &num_rows )

/*********************************************************************************/

{

Handle<Array> rows = Handle<Array>::Cast( arg );

num_rows = rows->Length();

Handle<Array> row0 = Handle<Array>::Cast( rows->Get(0) );

unsigned num_cols = row0->Length();

unsigned c;

if( num_cols == 0 ) {

// if an empty array was passed in, we still need ExecuteData

ExecuteData *ex = new ExecuteData;

execData.push_back( ex );

return true;

}

// Make sure that each array in the list has the same number and types

// of values

for( unsigned int r = 1; r < num_rows; r++ ) {

Handle<Array> row = Handle<Array>::Cast( rows->Get(r) );

for( c = 0; c < num_cols; c++ ) {

Handle<Value> val0 = row0->Get(c);

Handle<Value> val = row->Get(c);

if( ( val0->IsInt32() || val0->IsNumber() ) &&

( !val->IsInt32() && !val->IsNumber() && !val->IsNull() ) ) {

return false;

}

if( val0->IsString() &&

!val->IsString() && !val->IsNull() ) {

return false;

}

if( Buffer::HasInstance( val0 ) &&

!Buffer::HasInstance( val ) && !val->IsNull() ) {

return false;

}

for( c = 0; c < num_cols; c++ ) {

a_sqlany_bind_param param;

memset( &param, 0, sizeof( param ) );

ExecuteData *ex = new ExecuteData;

execData.push_back( ex );

double * param_double = new double[num_rows];

ex->addNum( param_double );

char ** char_arr = new char *[num_rows];

size_t * len = new size_t[num_rows];

ex->addStrings( char_arr, len );

sacapi_bool * is_null = new sacapi_bool[num_rows];

ex->addNull( is_null );

param.value.is_null = is_null;

param.value.is_address = false;

if( row0->Get(c)->IsInt32() || row0->Get(c)->IsNumber() ) {

param.value.type = A_DOUBLE;

param.value.buffer = (char *)( param_double );

} else if( row0->Get(c)->IsString() ) {

param.value.type = A_STRING;

param.value.buffer = (char *)char_arr;

param.value.length = len;

param.value.is_address = true;

} else if( Buffer::HasInstance( row0->Get(c) ) ) {

param.value.type = A_BINARY;

param.value.buffer = (char *)char_arr;

param.value.length = len;

param.value.is_address = true;

} else if( row0->Get(c)->IsNull() ) {

} else{

return false;

}

for( unsigned int r = 0; r < num_rows; r++ ) {

Handle<Array> bind_params = Handle<Array>::Cast( rows->Get(r) );

is_null[r] = false;

if( bind_params->Get(c)->IsInt32() || bind_params->Get(c)->IsNumber() ) {

param_double[r] = bind_params->Get(c)->NumberValue();

} else if( bind_params->Get(c)->IsString() ) {

String::Utf8Value paramValue( bind_params->Get(c)->ToString() );

const char* param_string = (*paramValue);

len[r] = (size_t)paramValue.length();

char *param_char = new char[len[r] + 1];

char_arr[r] = param_char;

memcpy( param_char, param_string, len[r] + 1 );

} else if( Buffer::HasInstance( bind_params->Get(c) ) ) {

len[r] = Buffer::Length( bind_params->Get(c) );

char *param_char = new char[len[r]];

char_arr[r] = param_char;

memcpy( param_char, Buffer::Data( bind_params->Get(c) ), len[r] );

} else if( bind_params->Get(c)->IsNull() ) {

is_null[r] = true;

}

params.push_back( param );

}

return true;

}

bool getBindParameters( std::vector<ExecuteData *> &execData,

Handle<Value> arg,

std::vector<a_sqlany_bind_param> & params,

unsigned &num_rows )

/*************************************************************************/

{

Handle<Array> bind_params = Handle<Array>::Cast( arg );

if( bind_params->Length() == 0 ) {

// if an empty array was passed in, we still need ExecuteData

ExecuteData *ex = new ExecuteData;

execData.push_back( ex );

return true;

}

if( bind_params->Get(0)->IsArray() ) {

return getWideBindParameters( execData, arg, params, num_rows );

}

num_rows = 1;

ExecuteData *ex = new ExecuteData;

execData.push_back( ex );

for( unsigned int i = 0; i < bind_params->Length(); i++ ) {

a_sqlany_bind_param param;

memset( &param, 0, sizeof( param ) );

if( bind_params->Get(i)->IsInt32() ) {

int *param_int = new int;

*param_int = bind_params->Get(i)->Int32Value();

ex->addInt( param_int );

param.value.buffer = (char *)( param_int );

param.value.type = A_VAL32;

} else if( bind_params->Get(i)->IsNumber() ) {

double *param_double = new double;

*param_double = bind_params->Get(i)->NumberValue(); // Remove Round off Error

ex->addNum( param_double );

param.value.buffer = (char *)( param_double );

param.value.type = A_DOUBLE;

} else if( bind_params->Get(i)->IsString() ) {

String::Utf8Value paramValue( bind_params->Get(i)->ToString() );

const char* param_string = (*paramValue);

size_t *len = new size_t;

*len = (size_t)paramValue.length();

char **char_arr = new char *;

char *param_char = new char[*len + 1];

*char_arr = param_char;

memcpy( param_char, param_string, ( *len ) + 1 );

ex->addStrings( char_arr, len );

param.value.type = A_STRING;

param.value.buffer = param_char;

param.value.length = len;

param.value.buffer_size = *len + 1;

} else if( Buffer::HasInstance( bind_params->Get(i) ) ) {

size_t *len = new size_t;

*len = Buffer::Length( bind_params->Get(i) );

char **char_arr = new char *;

char *param_char = new char[*len];

*char_arr = param_char;

memcpy( param_char, Buffer::Data( bind_params->Get(i) ), *len );

ex->addStrings( char_arr, len );

param.value.type = A_BINARY;

param.value.buffer = param_char;

param.value.length = len;

param.value.buffer_size = sizeof( param_char );

} else if( bind_params->Get(i)->IsNull() ) {

param.value.type = A_STRING;

sacapi_bool *is_null = new sacapi_bool;

param.value.is_null = is_null;

ex->addNull( is_null );

is_null[0] = true;

} else{

return false;

}

params.push_back( param );

}

return true;

}

bool getResultSet( Persistent<Value> & Result,

int & rows_affected,

std::vector<char *> & colNames,

ExecuteData * execData,

std::vector<a_sqlany_data_type> & col_types )

/*****************************************************************/

{

Isolate *isolate = Isolate::GetCurrent();

HandleScope scope( isolate );

int num_rows = 0;

size_t num_cols = colNames.size();

if( rows_affected >= 0 ) {

Result.Reset( isolate, Integer::New( isolate, rows_affected ) );

return true;

}

if( num_cols > 0 ) {

size_t count = 0;

size_t count_int = 0, count_num = 0, count_string = 0;

Local<Array> ResultSet = Array::New( isolate );

while( count_int < execData->intSize() ||

count_num < execData->numSize() ||

count_string < execData->stringSize() ) {

Local<Object> curr_row = Object::New( isolate );

num_rows++;

for( size_t i = 0; i < num_cols; i++ ) {

switch( col_types[count] ) {

case A_INVALID_TYPE:

curr_row->Set( String::NewFromUtf8( isolate, colNames[i] ),

Null( isolate ) );

break;

case A_VAL32:

case A_VAL16:

case A_UVAL16:

case A_VAL8:

case A_UVAL8:

if( execData->intIsNull( count_int ) ) {

curr_row->Set( String::NewFromUtf8( isolate, colNames[i] ),

Null( isolate ) );

} else {

curr_row->Set( String::NewFromUtf8( isolate, colNames[i] ),

Integer::New( isolate, execData->getInt( count_int ) ) );

}

count_int++;

break;

case A_UVAL32:

case A_UVAL64:

case A_VAL64:

case A_DOUBLE:

if( execData->numIsNull( count_num ) ) {

curr_row->Set( String::NewFromUtf8( isolate, colNames[i] ),

Null( isolate ) );

} else {

curr_row->Set( String::NewFromUtf8( isolate, colNames[i] ),

Number::New( isolate, execData->getNum( count_num ) ) );

}

count_num++;

break;

case A_BINARY:

if( execData->stringIsNull( count_string ) ) {

curr_row->Set( String::NewFromUtf8( isolate, colNames[i] ),

Null( isolate ) );

} else {

#if v012

Local<Object> buf = node::Buffer::New(

isolate, execData->getString( count_string ),

execData->getLen( count_string ) );

curr_row->Set( String::NewFromUtf8( isolate,

colNames[i] ),

buf );

#else

MaybeLocal<Object> mbuf = node::Buffer::Copy(

isolate, execData->getString( count_string ),

execData->getLen( count_string ) );

Local<Object> buf = mbuf.ToLocalChecked();

#endif

curr_row->Set( String::NewFromUtf8( isolate,

colNames[i] ),

buf );

}

count_string++;

break;

case A_STRING:

if( execData->stringIsNull( count_string ) ) {

curr_row->Set( String::NewFromUtf8( isolate, colNames[i] ),

Null( isolate ) );

} else {

curr_row->Set( String::NewFromUtf8( isolate,

colNames[i] ),

#if v012

String::NewFromUtf8( isolate,

execData->getString( count_string ),

String::NewStringType::kNormalString,

(int)execData->getLen( count_string ) )

#else

String::NewFromUtf8( isolate,

execData->getString( count_string ),

NewStringType::kNormal,

(int)execData->getLen( count_string ) ).ToLocalChecked()

#endif

);

}

count_string++;

break;

default:

return false;

}

count++;

}

ResultSet->Set( num_rows - 1, curr_row );

}

Result.Reset( isolate, ResultSet );

} else {

Result.Reset( isolate, Local<Value>::New( isolate,

Undefined( isolate ) ) );

}

return true;

}

bool fetchResultSet( a_sqlany_stmt * sqlany_stmt,

int & rows_affected,

std::vector<char *> & colNames,

ExecuteData * execData,

std::vector<a_sqlany_data_type> & col_types )

/*****************************************************************/

{

a_sqlany_data_value value;

int num_cols = 0;

rows_affected = api.sqlany_affected_rows( sqlany_stmt );

num_cols = api.sqlany_num_cols( sqlany_stmt );

if( rows_affected > 0 && num_cols < 1 ) {

return true;

}

rows_affected = -1;

if( num_cols > 0 ) {

for( int i = 0; i < num_cols; i++ ) {

a_sqlany_column_info info;

api.sqlany_get_column_info( sqlany_stmt, i, &info );

size_t size = strlen( info.name ) + 1;

char *name = new char[ size ];

memcpy( name, info.name, size );

colNames.push_back( name );

}

int count_string = 0, count_num = 0, count_int = 0;

while( api.sqlany_fetch_next( sqlany_stmt ) ) {

for( int i = 0; i < num_cols; i++ ) {

if( !api.sqlany_get_column( sqlany_stmt, i, &value ) ) {

return false;

break;

}

if( *(value.is_null) ) {

col_types.push_back( A_INVALID_TYPE );

continue;

}

switch( value.type ) {

case A_BINARY:

{

size_t *size = new size_t;

*size = *(value.length);

char *val = new char[ *size ];

memcpy( val, value.buffer, *size );

execData->addString( val, size );

count_string++;

break;

}

case A_STRING:

{

size_t *size = new size_t;

*size = (size_t)( (int)*(value.length) );

char *val = new char[ *size ];

memcpy( val, (char *)value.buffer, *size );

execData->addString( val, size );

count_string++;

break;

}

case A_VAL64:

{

double *val = new double;

*val = (double)*(long long *)value.buffer;

execData->addNum( val );

count_num++;

break;

}

case A_UVAL64:

{

double *val = new double;

*val = (double)*(unsigned long long *)value.buffer;

execData->addNum( val );

count_num++;

break;

}

case A_VAL32:

{

int *val = new int;

*val = *(int*)value.buffer;

execData->addInt( val );

count_int++;

break;

}

case A_UVAL32:

{

double *val = new double;

*val = (double)*(unsigned int*)value.buffer;

execData->addNum( val );

count_num++;

break;

}

case A_VAL16:

{

int *val = new int;

*val = (int)*(short*)value.buffer;

execData->addInt( val );

count_int++;

break;

}

case A_UVAL16:

{

int *val = new int;

*val = (int)*(unsigned short*)value.buffer;

execData->addInt( val );

count_int++;

break;

}

case A_VAL8:

{

int *val = new int;

*val = (int)*(char *)value.buffer;

execData->addInt( val );

count_int++;

break;

}

case A_UVAL8:

{

int *val = new int;

*val = (int)*(unsigned char *)value.buffer;

execData->addInt( val );

count_int++;

break;

}

case A_DOUBLE:

{

double *val = new double;

*val = (double)*(double *)value.buffer;

execData->addNum( val );

count_num++;

break;

}

default:

return false;

}

col_types.push_back( value.type );

}

return true;

}

bool cleanAPI()

/*************/

{

if( openConnections == 0 ) {

if( api.initialized ) {

api.sqlany_fini();

sqlany_finalize_interface( &api );

return true;

}

return false;

}

// Generic Baton and Callback (After) Function

// Use this if the function does not have any return values and

// Does not take any parameters.

// Create custom Baton and Callback (After) functions otherwise

void Connection::noParamAfter( uv_work_t *req )

/*********************************************/

{

Isolate *isolate = Isolate::GetCurrent();

HandleScope scope(isolate);

noParamBaton *baton = static_cast<noParamBaton*>(req->data);

Local<Value> undef = Local<Value>::New( isolate, Undefined( isolate ) );

if( baton->err ) {

callBack( &( baton->error_msg ), baton->callback, undef,

baton->callback_required );

return;

}

callBack( NULL, baton->callback, undef, baton->callback_required );

delete baton;

delete req;

}

// Stmt Object Functions

StmtObject::StmtObject()

/**********************/

{

connection = NULL;

sqlany_stmt = NULL;

}

StmtObject::~StmtObject()

/***********************/

{

uv_mutex_t *mutex = NULL;

if( connection != NULL ) {

mutex = &connection->conn_mutex;

uv_mutex_lock( mutex );

}

cleanup();

removeConnection();

if( mutex != NULL ) {

uv_mutex_unlock( mutex );

}

Persistent<Function> StmtObject::constructor;

void StmtObject::Init( Isolate *isolate )

/***************************************/

{

HandleScope scope(isolate);

// Prepare constructor template

Local<FunctionTemplate> tpl = FunctionTemplate::New( isolate, New );

tpl->SetClassName( String::NewFromUtf8( isolate, "StmtObject" ) );

tpl->InstanceTemplate()->SetInternalFieldCount( 1 );

// Prototype

NODE_SET_PROTOTYPE_METHOD( tpl, "exec", exec );

NODE_SET_PROTOTYPE_METHOD( tpl, "drop", drop );

NODE_SET_PROTOTYPE_METHOD( tpl, "getMoreResults", getMoreResults );

constructor.Reset( isolate, tpl->GetFunction() );

}

void StmtObject::New( const FunctionCallbackInfo<Value> &args )

/*************************************************************/

{

StmtObject* obj = new StmtObject();

obj->Wrap( args.This() );

args.GetReturnValue().Set( args.This() );

}

void StmtObject::NewInstance( const FunctionCallbackInfo<Value> &args )

/*********************************************************************/

{

Persistent<Object> obj;

CreateNewInstance( args, obj );

args.GetReturnValue().Set( obj );

}

void StmtObject::CreateNewInstance( const FunctionCallbackInfo<Value> & args,

Persistent<Object> & obj )

/***************************************************************************/

{

Isolate *isolate = args.GetIsolate();

HandleScope scope(isolate);

const unsigned argc = 1;

Handle<Value> argv[argc] = { args[0] };

Local<Function>cons = Local<Function>::New( isolate, constructor );

#if NODE_MAJOR_VERSION >= 10

Local<Context> env = isolate->GetCurrentContext();

MaybeLocal<Object> mlObj = cons->NewInstance( env, argc, argv );

Local<Object> instance = mlObj.ToLocalChecked();

obj.Reset( isolate, instance );

#else

obj.Reset( isolate, cons->NewInstance( argc, argv ) );

#endif

}

void StmtObject::cleanup( void )

/******************************/

{

if( sqlany_stmt != NULL ) {

api.sqlany_free_stmt( sqlany_stmt );

sqlany_stmt = NULL;

}

void StmtObject::removeConnection( void )

/***************************************/

{

if( connection != NULL ) {

connection->removeStmt( this );

connection = NULL;

}

// Connection Functions

void HashToString( Local<Object> obj, Persistent<String> &ret )

/*************************************************************/

{

Isolate *isolate = Isolate::GetCurrent();

HandleScope scope(isolate);

Local<Array> props = obj->GetOwnPropertyNames();

int length = props->Length();

std::string params = "";

bool first = true;

for( int i = 0; i < length; i++ ) {

Local<String> key = props->Get(i).As<String>();

Local<String> val = obj->Get(key).As<String>();

String::Utf8Value key_utf8( key );

String::Utf8Value val_utf8( val );

if( !first ) {

params += ";";

}

first = false;

params += std::string(*key_utf8);

params += "=";

params += std::string(*val_utf8);

}

ret.Reset( isolate, String::NewFromUtf8( isolate, params.c_str() ) );

}

#if 0

// Handy function for determining what type an object is.

static void CheckArgType( Local<Value> &obj )

/*******************************************/

{

static const char *type = NULL;

if( obj->IsArray() ) {

type = "Array";

} else if( obj->IsBoolean() ) {

type = "Boolean";

} else if( obj->IsBooleanObject() ) {

type = "BooleanObject";

} else if( obj->IsDate() ) {

type = "Date";

} else if( obj->IsExternal() ) {

type = "External";

} else if( obj->IsFunction() ) {

type = "Function";

} else if( obj->IsInt32() ) {

type = "Int32";

} else if( obj->IsNativeError() ) {

type = "NativeError";

} else if( obj->IsNull() ) {

type = "Null";

} else if( obj->IsNumber() ) {

type = "Number";

} else if( obj->IsNumberObject() ) {

type = "NumberObject";

} else if( obj->IsObject() ) {

type = "Object";

} else if( obj->IsRegExp() ) {

type = "RegExp";

} else if( obj->IsString() ) {

type = "String";

} else if( obj->IsStringObject() ) {

type = "StringObject";

} else if( obj->IsUint32() ) {

type = "Uint32";

} else if( obj->IsUndefined() ) {

type = "Undefined";

} else {

type = "Unknown";

}

#endif

Connection::Connection( const FunctionCallbackInfo<Value> &args )

/***************************************************************/

{

Isolate *isolate = args.GetIsolate();

HandleScope scope( isolate );

uv_mutex_init(&conn_mutex);

conn = NULL;

if( args.Length() > 1 ) {

throwError( JS_ERR_INVALID_ARGUMENTS );

return;

}

if( args.Length() == 1 ) {

//CheckArgType( args[0] );

if( args[0]->IsString() ) {

Local<String> str = args[0]->ToString();

int string_len = str->Utf8Length();

char *buf = new char[string_len+1];

str->WriteUtf8( buf );

_arg.Reset( isolate, String::NewFromUtf8( isolate, buf ) );

delete [] buf;

} else if( args[0]->IsObject() ) {

HashToString( args[0]->ToObject(), _arg );

} else if( !args[0]->IsUndefined() && !args[0]->IsNull() ) {

throwError( JS_ERR_INVALID_ARGUMENTS );

} else {

_arg.Reset( isolate, String::NewFromUtf8( isolate, "" ) );

}

} else {

_arg.Reset( isolate, String::NewFromUtf8( isolate, "" ) );

}

Connection::~Connection()

/***********************/

{

scoped_lock api_lock( api_mutex );

scoped_lock lock( conn_mutex );

_arg.Reset();

cleanupStmts();

if( conn != NULL ) {

api.sqlany_disconnect( conn );

api.sqlany_free_connection( conn );

conn = NULL;

openConnections--;

}

cleanAPI();

};

void Connection::cleanupStmts( void )

/***********************************/

{

std::vector<void*>::iterator findit;

for( findit = statements.begin(); findit != statements.end(); findit++ ) {

StmtObject *s = reinterpret_cast<StmtObject*>(*findit);

s->cleanup();

}

void Connection::removeStmt( class StmtObject *stmt )

/***************************************************/

{

// caller must get mutex

std::vector<void*>::iterator findit;

for( findit = statements.begin(); findit != statements.end(); findit++ ) {

if( *findit == reinterpret_cast<void*>(stmt) ) {

statements.erase( findit );

return;

}

Persistent<Function> Connection::constructor;

void Connection::Init( Isolate *isolate )

/***************************************/

{

HandleScope scope( isolate );

// Prepare constructor template

Local<FunctionTemplate> tpl = FunctionTemplate::New( isolate, New );

tpl->SetClassName( String::NewFromUtf8( isolate, "Connection" ) );

tpl->InstanceTemplate()->SetInternalFieldCount( 1 );

// Prototype

NODE_SET_PROTOTYPE_METHOD( tpl, "exec", exec );

NODE_SET_PROTOTYPE_METHOD( tpl, "prepare", prepare );

NODE_SET_PROTOTYPE_METHOD( tpl, "connect", connect );

NODE_SET_PROTOTYPE_METHOD( tpl, "disconnect", disconnect );

NODE_SET_PROTOTYPE_METHOD( tpl, "close", disconnect );

NODE_SET_PROTOTYPE_METHOD( tpl, "commit", commit );

NODE_SET_PROTOTYPE_METHOD( tpl, "rollback", rollback );

NODE_SET_PROTOTYPE_METHOD( tpl, "connected", connected );

constructor.Reset( isolate, tpl->GetFunction() );

View remainder of file in raw view

node-sqlanywhere/src/utils.cpp at master · ambelovsky/node-sqlanywhere · GitHub

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