int GLPKPrintFromSolver(int lpcount) {
if (GLPKModel == NULL) {
FErrorFile() << "Cannot print problem because problem does not exist." << endl;
FlushErrorFile();
return FAIL;
}
string Filename = CheckFilename(FOutputFilepath()+GetParameter("LP filename"));
int Status = glp_write_lp(GLPKModel,NULL,ConvertStringToCString(Filename));
if (Status) {
FErrorFile() << "Unable to write problem to file due to error in writing function." << endl;
FlushErrorFile();
return FAIL;
}
Filename = CheckFilename(FOutputFilepath()+GetParameter("LP filename")+itoa(lpcount));
Status = glp_write_lp(GLPKModel,NULL,ConvertStringToCString(Filename));
if (Status) {
FErrorFile() << "Unable to write problem to file due to error in writing function." << endl;
FlushErrorFile();
return FAIL;
}
return SUCCESS;
}
/*
* SIGINTInterruptCheckProcess
* Checks and processes if SIGINT interrupt occurs
*/
static void
SIGINTInterruptCheckProcess()
{
if (InterruptFlag == true)
{
jclass JDBCUtilsClass;
jmethodID id_cancel;
jstring cancel_result = NULL;
char *cancel_result_cstring = NULL;
JDBCUtilsClass = (*env)->FindClass(env, "JDBCUtils");
if (JDBCUtilsClass == NULL)
{
elog(ERROR, "JDBCUtilsClass is NULL");
}
id_cancel = (*env)->GetMethodID(env, JDBCUtilsClass, "Cancel", "()Ljava/lang/String;");
if (id_cancel == NULL)
{
elog(ERROR, "id_cancel is NULL");
}
cancel_result = (*env)->CallObjectMethod(env,java_call,id_cancel);
if (cancel_result != NULL)
{
cancel_result_cstring = ConvertStringToCString((jobject)cancel_result);
elog(ERROR, "%s", cancel_result_cstring);
}
InterruptFlag = false;
elog(ERROR, "Query has been cancelled");
(*env)->ReleaseStringUTFChars(env, cancel_result, cancel_result_cstring);
(*env)->DeleteLocalRef(env, cancel_result);
}
}
