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fb-bindings-fbresult.cc
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fb-bindings-fbresult.cc
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/*!
* Copyright by Denys Khanzhiyev aka xdenser
*
* See license text in LICENSE file
*/
#include "./fb-bindings-fbresult.h"
Persistent<FunctionTemplate> FBResult::constructor_template;
const double FBResult::dscales[19] = { 1, 1E1, 1E2, 1E3, 1E4, 1E5, 1E6, 1E7, 1E8, 1E9, 1E10,
1E11, 1E12, 1E13, 1E14, 1E15, 1E16, 1E17, 1E18 };
void
FBResult::Initialize (v8::Handle<v8::Object> target)
{
HandleScope scope;
Local<FunctionTemplate> t = FunctionTemplate::New(New);
t->Inherit(FBEventEmitter::constructor_template);
constructor_template = Persistent<FunctionTemplate>::New(t);
constructor_template->Inherit(FBEventEmitter::constructor_template);
constructor_template->SetClassName(String::NewSymbol("FBResult"));
Local<ObjectTemplate> instance_template =
constructor_template->InstanceTemplate();
NODE_SET_PROTOTYPE_METHOD(t, "fetchSync", FetchSync);
NODE_SET_PROTOTYPE_METHOD(t, "fetch", Fetch);
instance_template->SetInternalFieldCount(1);
Local<v8::ObjectTemplate> instance_t = t->InstanceTemplate();
instance_t->SetAccessor(String::NewSymbol("inAsyncCall"),InAsyncGetter);
target->Set(String::NewSymbol("FBResult"), t->GetFunction());
}
Handle<Value>
FBResult::New (const Arguments& args)
{
// XSQLDA **asqldap, isc_stmt_handle *astmtp
HandleScope scope;
REQ_EXT_ARG(0, js_sqldap);
REQ_EXT_ARG(1, js_stmtp);
REQ_EXT_ARG(2, js_connection);
XSQLDA *asqldap;
asqldap = static_cast<XSQLDA *>(js_sqldap->Value());
isc_stmt_handle *astmtp;
astmtp = static_cast<isc_stmt_handle *>(js_stmtp->Value());
Connection *conn;
conn = static_cast<Connection *>(js_connection->Value());
FBResult *res = new FBResult(asqldap, astmtp, conn);
res->Wrap(args.This());
return args.This();
}
bool FBResult::prepare_sqlda(XSQLDA *sqlda)
{
int i;
XSQLVAR* var;
sqlda->sqln = sqlda->sqld;
for(i = 0, var = sqlda->sqlvar; i < sqlda->sqld;i++,var++)
{
switch(var->sqltype & ~1)
{
case SQL_ARRAY:
case SQL_BLOB: var->sqldata = (char*) new ISC_QUAD;
memset(var->sqldata, 0, sizeof(ISC_QUAD));
break;
case SQL_TIMESTAMP: var->sqldata = (char*) new ISC_TIMESTAMP;
memset(var->sqldata, 0, sizeof(ISC_TIMESTAMP));
break;
case SQL_TYPE_TIME: var->sqldata = (char*) new ISC_TIME;
memset(var->sqldata, 0, sizeof(ISC_TIME));
break;
case SQL_TYPE_DATE: var->sqldata = (char*) new ISC_DATE;
memset(var->sqldata, 0, sizeof(ISC_DATE));
break;
case SQL_TEXT: var->sqldata = new char[var->sqllen + 1];
memset(var->sqldata, ' ', var->sqllen);
//memset(var->sqldata, 0, var->sqllen);
var->sqldata[var->sqllen] = '\0';
break;
case SQL_VARYING: var->sqldata = new char[var->sqllen + 3];
memset(var->sqldata, 0, 2);
memset(var->sqldata + 2, ' ', var->sqllen);
var->sqldata[var->sqllen + 2] = '\0';
break;
case SQL_SHORT: var->sqldata = (char *) new int16_t(0); break;
case SQL_LONG: var->sqldata = (char *) new int32_t(0); break;
case SQL_INT64: var->sqldata = (char *) new int64_t(0); break;
case SQL_FLOAT: var->sqldata = (char *) new float(0.0); break;
case SQL_DOUBLE: var->sqldata = (char *) new double(0.0); break;
default: return false;
}
if(var->sqltype & 1){
var->sqlind = new short(-1);
}
}
return true;
}
void FBResult::clean_sqlda(XSQLDA *sqlda)
{
int i;
XSQLVAR* var;
for(i = 0, var= sqlda->sqlvar; i < sqlda->sqld;i++,var++)
{
switch(var->sqltype & ~1)
{
case SQL_ARRAY:
case SQL_BLOB: delete (ISC_QUAD*) var->sqldata; break;
case SQL_TIMESTAMP: delete (ISC_TIMESTAMP*) var->sqldata; break;
case SQL_TYPE_TIME: delete (ISC_TIME*) var->sqldata; break;
case SQL_TYPE_DATE: delete (ISC_DATE*) var->sqldata; break;
case SQL_TEXT:
case SQL_VARYING: delete [] var->sqldata; break;
case SQL_SHORT: delete (int16_t *) var->sqldata; break;
case SQL_LONG: delete (int32_t *) var->sqldata; break;
case SQL_INT64: delete (int64_t *) var->sqldata; break;
case SQL_FLOAT: delete (float *) var->sqldata; break;
case SQL_DOUBLE: delete (double *) var->sqldata; break;
default: return;
}
if(var->sqlind != 0) delete var->sqlind;
}
}
/*
double get_js_time(struct tm* times){
double res = 0;
}
*/
bool FBResult::clone_sqlda(XSQLDA *src_sqlda,XSQLDA **dest_sqlda)
{
int size = XSQLDA_LENGTH (src_sqlda->sqln);
XSQLDA *out_sqlda = (XSQLDA *) malloc(size);
*dest_sqlda = out_sqlda;
if(!out_sqlda) return false;
memcpy(out_sqlda,src_sqlda,size);
return prepare_sqlda(out_sqlda);
}
char* errmsg1f(char* buf,const char* msg, int arg)
{
sprintf(buf,msg,arg);
return buf;
}
char* errmsg2f(char* buf,const char* msg, int arg1, int arg2)
{
sprintf(buf,msg,arg1,arg2);
return buf;
}
void get_date(struct tm* times, Local<Object> js_date, int* msp)
{
HandleScope scope;
Local<Value> val;
val = Local<Function>::Cast(js_date->Get( String::NewSymbol("getFullYear") ))->Call(js_date,0,NULL);
times->tm_year = (int) (val->Int32Value()) - 1900;
val = Local<Function>::Cast(js_date->Get( String::NewSymbol("getMonth") ))->Call(js_date,0,NULL);
times->tm_mon = val->Int32Value();
val = Local<Function>::Cast(js_date->Get( String::NewSymbol("getDate") ))->Call(js_date,0,NULL);
times->tm_mday = val->Int32Value();
val = Local<Function>::Cast(js_date->Get( String::NewSymbol("getHours") ))->Call(js_date,0,NULL);
times->tm_hour = val->Int32Value();
val = Local<Function>::Cast(js_date->Get( String::NewSymbol("getMinutes") ))->Call(js_date,0,NULL);
times->tm_min = val->Int32Value();
val = Local<Function>::Cast(js_date->Get( String::NewSymbol("getSeconds") ))->Call(js_date,0,NULL);
times->tm_sec = val->Int32Value();
val = Local<Function>::Cast(js_date->Get( String::NewSymbol("getMilliseconds") ))->Call(js_date,0,NULL);
*msp = val->Int32Value();
}
Handle<Value> FBResult::set_params(XSQLDA *sqlda, const Arguments& args)
{
HandleScope scope;
int i;
XSQLVAR* var;
PARAMVARY *vary2;
FBblob *blob;
Local<Object> obj;
char errm[512];
double date_num;
double double_val;
struct tm times;
int m_sec;
int16_t s_len;
int64_t int_val;
// char *txt;
if( sqlda->sqld > args.Length() ) return ThrowException(Exception::Error(
String::New(errmsg2f(errm,"Expecting %d arguments, but only %d provided.",(int)sqlda->sqld,(int)args.Length()))));
for(i = 0, var= sqlda->sqlvar; i < sqlda->sqld;i++,var++)
{
if(args[i]->IsNull() && (var->sqltype & 1)){
*var->sqlind = -1;
continue;
}
switch(var->sqltype & ~1)
{
case SQL_ARRAY:
case SQL_BLOB:
if(!FBblob::HasInstance(args[i]))
return ThrowException(Exception::Error(
String::New(errmsg1f(errm,"Expecting FBblob as argument #%d.",i+1))));
obj = args[i]->ToObject();
blob = ObjectWrap::Unwrap<FBblob>(obj);
//memcpy(dest,src,size);
blob->getId((ISC_QUAD*)var->sqldata);
// printf("setting blob param %d,%d\n",((ISC_QUAD*)var->sqldata)->gds_quad_high,((ISC_QUAD*)var->sqldata)->gds_quad_low);
break;
case SQL_TIMESTAMP:
if(!args[i]->IsDate())
return ThrowException(Exception::Error(
String::New(errmsg1f(errm,"Expecting Date as argument #%d.",i+1))));
get_date( ×, args[i]->ToObject(), &m_sec);
isc_encode_timestamp(×, (ISC_TIMESTAMP *)var->sqldata);
((ISC_TIMESTAMP *)var->sqldata)->timestamp_time = ((ISC_TIMESTAMP *)var->sqldata)->timestamp_time + m_sec*10;
break;
case SQL_TYPE_TIME:
if(!args[i]->IsDate())
return ThrowException(Exception::Error(
String::New(errmsg1f(errm,"Expecting Date as argument #%d.",i+1))));
get_date( ×, args[i]->ToObject(), &m_sec);
isc_encode_sql_time(×, (ISC_TIME *)var->sqldata);
*((ISC_TIME *)var->sqldata) = *((ISC_TIME *)var->sqldata) + m_sec*10;
break;
case SQL_TYPE_DATE:
if(!args[i]->IsDate())
return ThrowException(Exception::Error(
String::New(errmsg1f(errm,"Expecting Date as argument #%d.",i+1))));
get_date( ×, args[i]->ToObject(), &m_sec);
isc_encode_sql_date(×, (ISC_DATE *)var->sqldata);
break;
case SQL_TEXT:
if(!args[i]->IsString())
return ThrowException(Exception::Error(
String::New(errmsg1f(errm,"Expecting String as argument #%d.",i+1))));
{
String::Utf8Value txt(args[i]->ToString());
s_len = strlen(*txt);
if(s_len > var->sqllen) s_len = var->sqllen;
strncpy(var->sqldata, *txt, s_len);
while(s_len < var->sqllen) var->sqldata[s_len++] = ' ';
}
break;
case SQL_VARYING:
if(!args[i]->IsString())
return ThrowException(Exception::Error(
String::New(errmsg1f(errm,"Expecting String as argument #%d.",i+1))));
{
String::Utf8Value txt(args[i]->ToString());
s_len = strlen(*txt);
if(s_len > var->sqllen) s_len = var->sqllen;
vary2 = (PARAMVARY*) var->sqldata;
vary2->vary_length = s_len;
strncpy((char*) vary2->vary_string, *txt, s_len);
}
break;
case SQL_SHORT:
int_val = args[i]->IntegerValue();
*(int16_t *) var->sqldata = (int16_t) int_val;
break;
case SQL_LONG:
int_val = args[i]->IntegerValue();
*(int32_t *) var->sqldata = (int32_t) int_val;
break;
case SQL_INT64:
if(args[i]->IsNumber())
{
double multiplier = FBResult::dscales[-var->sqlscale];
double_val = args[i]->NumberValue();
*(int64_t *) var->sqldata = (int64_t) floor(double_val * multiplier + 0.5);
}
else
{
int_val = args[i]->IntegerValue();
*(int64_t *) var->sqldata = int_val;
}
break;
case SQL_FLOAT:
double_val = args[i]->NumberValue();
*(float *) var->sqldata = (float) double_val;
break;
case SQL_DOUBLE:
double_val = args[i]->NumberValue();
if( var->sqlscale != 0 )
{
double multiplier = FBResult::dscales[-var->sqlscale];
*(double *) var->sqldata = floor(double_val * multiplier + 0.5) / multiplier;
}
else *(double *) var->sqldata = double_val;
break;
}
if(var->sqltype & 1) *var->sqlind = 0;
}
return Undefined();
}
short getCharsetSize(XSQLVAR *var){
switch(var->sqlsubtype & 0xFF){
case 0: case 1: case 2: case 10: case 11: case 12: case 13: case 14:
case 19: case 21: case 22: case 39: case 45: case 46: case 47:
case 50: case 51: case 52: case 53: case 54: case 55: case 58: return 1;
case 5: case 6: case 8: case 44: case 56: case 57: case 64: return 2;
case 3: return 3;
case 4: case 59: return 4;
}
return 0;
}
Local<Value>
FBResult::GetFieldValue(XSQLVAR *var, Connection* conn)
{
short dtype;
PARAMVARY *vary2;
short len;
struct tm times;
ISC_QUAD bid;
time_t rawtime;
double time_val;
int days;
short bpc, chars; // bytes per char
HandleScope scope;
Local<Function> con;
Local<Value> argv[7];
Local<Object> js_date, js_obj;
Local<Value> js_field = Local<Value>::New(Null());
dtype = var->sqltype & ~1;
if ((var->sqltype & 1) && (*var->sqlind < 0))
{
// NULL PROCESSING
}
else
{
switch (dtype)
{
case SQL_TEXT:
bpc = getCharsetSize(var);
chars = var->sqllen/(bpc != 0 ? bpc : 1);
js_field = String::New(var->sqldata,var->sqllen );
if(Local<String>::Cast(js_field)->Length() > chars )
{
js_obj = js_field->ToObject();
argv[0] = Integer::New(0);
argv[1] = Integer::New(chars);
js_field = Local<Function>::Cast(js_obj->Get(String::NewSymbol("slice")))->Call(js_obj,2,argv);
}
// printf(" char lengh %d/%d, %d, 1 %hx, 2 %hx, 3 %hx, 4 %hx \n",var->sqllen,Local<String>::Cast(js_field)->Length(), var->sqlsubtype, var->sqldata[0],var->sqldata[1],var->sqldata[2],var->sqldata[3]);
// js_field = String::New(var->sqldata);
break;
case SQL_VARYING:
vary2 = (PARAMVARY*) var->sqldata;
vary2->vary_string[vary2->vary_length] = '\0';
js_field = String::New((const char*)(vary2->vary_string));
break;
case SQL_SHORT:
case SQL_LONG:
case SQL_INT64:
{
ISC_INT64 value;
short field_width;
short dscale;
switch (dtype)
{
case SQL_SHORT:
value = (ISC_INT64) *(short *) var->sqldata;
field_width = 6;
break;
case SQL_LONG:
value = (ISC_INT64) *(int *) var->sqldata;
field_width = 11;
break;
case SQL_INT64:
value = (ISC_INT64) *(ISC_INT64 *) var->sqldata;
field_width = 21;
break;
}
ISC_INT64 tens;
short i;
dscale = var->sqlscale;
if (dscale < 0)
{
tens = 1;
for (i = 0; i > dscale; i--) tens *= 10;
js_field = Number::New((double) value / tens);
}
else if (dscale)
{
tens = 1;
for (i = 0; i < dscale; i++) tens *= 10;
js_field = Integer::New(value * tens);
}
else
js_field = Integer::New( value);
}
break;
case SQL_FLOAT:
js_field = Number::New(double( *(float *) (var->sqldata) ));
break;
case SQL_DOUBLE:
js_field = Number::New(*(double *) (var->sqldata));
break;
case SQL_TIMESTAMP:
isc_decode_timestamp((ISC_TIMESTAMP *)var->sqldata, ×);
js_date = Date::New(0)->ToObject();
argv[0] = Integer::New(times.tm_year+1900);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setFullYear") ))->Call(js_date,1,argv);
argv[0] = Integer::New(times.tm_mon);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setMonth") ))->Call(js_date,1,argv);
argv[0] = Integer::New(times.tm_mday);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setDate") ))->Call(js_date,1,argv);
argv[0] = Integer::New(times.tm_hour);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setHours") ))->Call(js_date,1,argv);
argv[0] = Integer::New(times.tm_min);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setMinutes") ))->Call(js_date,1,argv);
argv[0] = Integer::New(times.tm_sec);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setSeconds") ))->Call(js_date,1,argv);
argv[0] = Integer::New( (( ((ISC_TIMESTAMP *)var->sqldata)->timestamp_time) % 10000) / 10);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setMilliseconds") ))->Call(js_date,1,argv);
js_field = js_date;
break;
case SQL_TYPE_DATE:
isc_decode_sql_date((ISC_DATE *)var->sqldata, ×);
// days from 1 jan 1858
//days = * (int *) var->sqldata ;
//time_val = (static_cast<double>(days) - 40587) * 86400 * 1000;
js_date = Date::New(0)->ToObject();
argv[0] = Integer::New(times.tm_year+1900);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setFullYear") ))->Call(js_date,1,argv);
argv[0] = Integer::New(times.tm_mon);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setMonth") ))->Call(js_date,1,argv);
argv[0] = Integer::New(times.tm_mday);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setDate") ))->Call(js_date,1,argv);
argv[0] = Integer::New(0);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setHours") ))->Call(js_date,1,argv);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setMinutes") ))->Call(js_date,1,argv);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setSeconds") ))->Call(js_date,1,argv);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setMilliseconds") ))->Call(js_date,1,argv);
//js_field = con->Call(js_date, 3, argv);
/*js_date = Object::New();
js_date->Set(String::New("year"),
Integer::New(times.tm_year+1900));
js_date->Set(String::New("month"),
Integer::New(times.tm_mon+1));
js_date->Set(String::New("day"),
Integer::New(times.tm_mday));
js_date->Set(String::New("date"),
Date::New(time_val));*/
js_field = js_date;
break;
case SQL_TYPE_TIME:
isc_decode_sql_time((ISC_TIME *)var->sqldata, ×);
js_date = Date::New(0)->ToObject();
argv[0] = Integer::New(times.tm_year+1900);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setFullYear") ))->Call(js_date,1,argv);
argv[0] = Integer::New(times.tm_mon);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setMonth") ))->Call(js_date,1,argv);
argv[0] = Integer::New(times.tm_mday);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setDate") ))->Call(js_date,1,argv);
argv[0] = Integer::New(times.tm_hour);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setHours") ))->Call(js_date,1,argv);
argv[0] = Integer::New(times.tm_min);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setMinutes") ))->Call(js_date,1,argv);
argv[0] = Integer::New(times.tm_sec);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setSeconds") ))->Call(js_date,1,argv);
argv[0] = Integer::New( (( ((ISC_TIMESTAMP *)var->sqldata)->timestamp_time) % 10000) / 10);
Local<Function>::Cast(js_date->Get( String::NewSymbol("setMilliseconds") ))->Call(js_date,1,argv);
js_field = js_date;
break;
case SQL_BLOB:
case SQL_ARRAY:
/* Print the blob id on blobs or arrays */
bid = *(ISC_QUAD *) var->sqldata;
argv[0] = External::New(&bid);
argv[1] = External::New(conn);
Local<Object> js_blob(FBblob::constructor_template->
GetFunction()->NewInstance(2, argv));
js_field = js_blob;
break;
}
}
return scope.Close(js_field);
}
Local<Object>
FBResult::getCurrentRow(bool asObject)
{
short i, num_cols;
// XSQLDA *sqlda;
// sqlda = sqldap;
num_cols = sqldap->sqld;
HandleScope scope;
Local<Object> js_result_row;
Local<Value> js_field;
// if(!sqldap){ return scope.Close(js_result_row);}
if(asObject)
js_result_row = Object::New();
else
js_result_row = Array::New();
for (i = 0; i < num_cols; i++)
{
js_field = FBResult::GetFieldValue((XSQLVAR *) &sqldap->sqlvar[i], connection);
if(asObject)
{
js_result_row->Set(String::New(sqldap->sqlvar[i].aliasname,sqldap->sqlvar[i].aliasname_length), js_field);
//js_result_row->Set(String::New(sqldap->sqlvar[i].sqlname,sqldap->sqlvar[i]), js_field);
}
else
js_result_row->Set(Integer::NewFromUnsigned(i), js_field);
}
return scope.Close(js_result_row);
}
Handle<Value>
FBResult::FetchSync(const Arguments& args)
{
HandleScope scope;
FBResult *fb_res = ObjectWrap::Unwrap<FBResult>(args.This());
int fetch_stat;
short i, num_cols;
XSQLDA *sqlda;
uint32_t j = 0;
sqlda = fb_res->sqldap;
if(!sqlda){ return Undefined();}
num_cols = sqlda->sqld;
Local<Value> js_result = Local<Value>::New(Null());
if (args.Length() < 2){
return ThrowException(Exception::Error(
String::New("Expecting 2 arguments")));
}
int rowCount = -1;
if(args[0]->IsInt32()){
rowCount = args[0]->IntegerValue();
}
else if(! (args[0]->IsString() && args[0]->Equals(String::New("all")))){
return ThrowException(Exception::Error(
String::New("Expecting integer or string as first argument")));
};
if(rowCount<=0) rowCount = -1;
bool rowAsObject = false;
if(args[1]->IsBoolean()){
rowAsObject = args[1]->BooleanValue();
}else if(args[1]->IsString() && args[1]->Equals(String::New("array"))){
rowAsObject = false;
}else if(args[1]->IsString() && args[1]->Equals(String::New("object"))){
rowAsObject = true;
} else{
return ThrowException(Exception::Error(
String::New("Expecting bool or string('array'|'object') as second argument")));
};
Local<Value> js_field;
Local<Object> js_result_row;
Local<Array> res = Array::New();
while (((fetch_stat = isc_dsql_fetch(fb_res->status, &fb_res->stmt, SQL_DIALECT_V6, sqlda)) == 0)&&((rowCount==-1)||(rowCount>0)))
{
js_result_row = fb_res->getCurrentRow(rowAsObject);
/* if(rowAsObject)
js_result_row = Object::New();
else
js_result_row = Array::New();
for (i = 0; i < num_cols; i++)
{
js_field = FBResult::GetFieldValue((XSQLVAR *) &sqlda->sqlvar[i], fb_res->connection);
if(rowAsObject)
{
js_result_row->Set(String::New(sqlda->sqlvar[i].sqlname), js_field);
}
else
js_result_row->Set(Integer::NewFromUnsigned(i), js_field);
}*/
res->Set(Integer::NewFromUnsigned(j++), js_result_row);
if(rowCount>0) rowCount--;
}
if ((fetch_stat != 100L) && fetch_stat)
return ThrowException(Exception::Error(
String::Concat(String::New("While FetchSync - "),ERR_MSG(fb_res,FBResult))));
// if(j==1) js_result = res->Get(0);
// else
js_result = res;
return scope.Close(js_result);
}
void FBResult::EIO_After_Fetch(uv_work_t *req)
{
uv_unref(uv_default_loop());
HandleScope scope;
struct fetch_request *f_req = (struct fetch_request *)(req->data);
delete req;
short i, num_cols;
num_cols = f_req->res->sqldap->sqld;
Local<Value> js_field;
Local<Object> js_result_row;
Local<Value> argv[3];
int argc = 0;
if(f_req->result)
{
if(f_req->rowCount>0) f_req->rowCount--;
js_result_row = f_req->res->getCurrentRow(f_req->rowAsObject);
/*
if(f_req->rowAsObject)
js_result_row = Object::New();
else
js_result_row = Array::New();
for (i = 0; i < num_cols; i++)
{
js_field = FBResult::GetFieldValue((XSQLVAR *) &f_req->res->sqldap->sqlvar[i], f_req->res->connection);
if(f_req->rowAsObject)
{
js_result_row->Set(String::New(f_req->res->sqldap->sqlvar[i].sqlname), js_field);
}
else
js_result_row->Set(Integer::NewFromUnsigned(i), js_field);
}
*/
if(f_req->rowCallback->IsFunction()){
argv[0] = js_result_row;
TryCatch try_catch;
Local<Value> ret = Persistent<Function>::Cast(f_req->rowCallback)->Call(Context::GetCurrent()->Global(), 1, argv);
if (try_catch.HasCaught()) {
node::FatalException(try_catch);
}
else
if((!ret->IsBoolean() || ret->BooleanValue())&&f_req->rowCount!=0)
{
uv_work_t* req = new uv_work_t();
req->data = f_req;
uv_queue_work(uv_default_loop(), req, EIO_Fetch, EIO_After_Fetch);
uv_ref(uv_default_loop());
return;
}
else
{
argc = 2;
argv[0] = Local<Value>::New(Null());
argv[1] = Local<Value>::New(False());
}
}
else
{
/* TODO:
* accumulate result here
*/
}
}
else
if(f_req->fetchStat!=100L){
argc = 1;
argv[0] = Exception::Error(
String::Concat(String::New("While fetching - "),ERR_MSG(f_req->res,FBResult)));
}
else
{
argc = 2;
argv[0] = Local<Value>::New(Null());
argv[1] = Local<Value>::New(True());
}
TryCatch try_catch;
f_req->eofCallback->Call(Context::GetCurrent()->Global(), argc, argv);
if (try_catch.HasCaught()) {
node::FatalException(try_catch);
}
f_req->rowCallback.Dispose();
f_req->eofCallback.Dispose();
f_req->res->stop_async();
f_req->res->Unref();
free(f_req);
}
void FBResult::EIO_Fetch(uv_work_t *req)
{
struct fetch_request *f_req = (struct fetch_request *)(req->data);
f_req->fetchStat = isc_dsql_fetch(f_req->res->status, &f_req->res->stmt, SQL_DIALECT_V6, f_req->res->sqldap);
f_req->result = (f_req->fetchStat == 0);
return ;
}
Handle<Value>
FBResult::Fetch(const Arguments& args)
{
HandleScope scope;
FBResult *res = ObjectWrap::Unwrap<FBResult>(args.This());
struct fetch_request *f_req =
(struct fetch_request *)calloc(1, sizeof(struct fetch_request));
if (!f_req) {
V8::LowMemoryNotification();
return ThrowException(Exception::Error(
String::New("Could not allocate memory.")));
}
if (args.Length() != 4){
return ThrowException(Exception::Error(
String::New("Expecting 4 arguments")));
}
f_req->rowCount = -1;
if(args[0]->IsInt32()){
f_req->rowCount = args[0]->IntegerValue();
}
else if(! (args[0]->IsString() && args[0]->Equals(String::New("all")))){
return ThrowException(Exception::Error(
String::New("Expecting integer or string as first argument")));
};
if(f_req->rowCount<=0) f_req->rowCount = -1;
f_req->rowAsObject = false;
if(args[1]->IsBoolean()){
f_req->rowAsObject = args[1]->BooleanValue();
}else if(args[1]->IsString() && args[1]->Equals(String::New("array"))){
f_req->rowAsObject = false;
}else if(args[1]->IsString() && args[1]->Equals(String::New("object"))){
f_req->rowAsObject = true;
} else{
return ThrowException(Exception::Error(
String::New("Expecting bool or string('array'|'object') as second argument")));
};
/* if(!args[2]->IsFunction()) f_req->rowCallback = Persistent<Value>::New(Null());
else f_req->rowCallback = Persistent<Function>::New(Local<Function>::Cast(args[2]));
*/
f_req->rowCallback = Persistent<Value>::New(args[2]);
if(!args[3]->IsFunction()) {
return ThrowException(Exception::Error(
String::New("Expecting Function as fourth argument")));
}
f_req->res = res;
f_req->eofCallback = Persistent<Function>::New(Local<Function>::Cast(args[3]));
res->start_async();
uv_work_t* req = new uv_work_t();
req->data = f_req;
uv_queue_work(uv_default_loop(), req, EIO_Fetch, EIO_After_Fetch);
uv_ref(uv_default_loop());
res->Ref();
return Undefined();
}
FBResult::FBResult (XSQLDA *asqldap, isc_stmt_handle *astmtp, Connection *conn) : FBEventEmitter ()
{
sqldap = asqldap;
stmt = *astmtp;
connection = conn;
// conn->doref();
}
FBResult::~FBResult()
{
//printf("Statement freed\n");
if(sqldap) {
FBResult::clean_sqlda(sqldap);
free(sqldap);
sqldap = NULL;
}
long SQLCODE;
if(stmt){
isc_dsql_free_statement(status,&stmt,DSQL_drop);
if (status[1]){
SQLCODE = isc_sqlcode(status);
if(SQLCODE!=-901) // print error message if error is not 'Invalid Statement Handle', wich is normal when connection closed before FBresult is freed
printf("Error in free statement %s, %d, %d\n",ErrorMessage(status,err_message,sizeof(this->err_message)),status[1],SQLCODE);
/*ThrowException(Exception::Error(
String::Concat(String::New("In FBResult::~FBResult, isc_dsql_free_statement - "),ERR_MSG(this, FBStatement))));
*/
}
else stmt = NULL;
}
// printf("fbresult destructor !\n");
// connection->dounref();
}