int main( int argc, char* argv[] ){
int i,x;
int fdhp1;
srand( time(NULL) );
BF_Init();
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
if ( (fdhp1 = HP_OpenFile("hp1")) < 0 )
{
BF_PrintError("Error opening file hp1");
return -1;
}
x=15;
printf("\nSearching for records with id 15 in file hp1\n");
HP_GetAllEntries(fdhp1, "id", &x);
printf("\nSearching for records with name VASSILIS in file hp1\n");
HP_GetAllEntries(fdhp1, "name", "VASSILIS");
printf("\nDeleting records with name VASSILIS in file hp1\n");
if ( HP_DeleteEntry (fdhp1, "name", "VASSILIS") < 0)
{
BF_PrintError("Error deleting record in file hp1");
HP_CloseFile(fdhp1);
return -1;
}
printf("\nSearching for records with name VASSILIS in file hp1\n");
HP_GetAllEntries(fdhp1, "name", "VASSILIS"); /* No entries found */
i = 0;
while ( i < 15 ) /* Insert 15 records in heap file */
{
Record r = randomRecord();
if( HP_InsertEntry (fdhp1, r) < 0)
{
BF_PrintError("Error inserting record in file hp1");
HP_CloseFile(fdhp1);
return -1;
}
printf("\nRecord (%d, %s, %s, %s) was successfully inserted in file hp1\n", r.id, r.name, r.surname, r.city);
i++;
}
/* Print everything that exists in file hp1 */
printf("Printing everything in file hp1\n");
HP_GetAllEntries(fdhp1, NULL, NULL);
x=12;
printf("\nDeleting records with id 12 in file hp1\n");
if ( HP_DeleteEntry (fdhp1, "id", &x) < 0)
{
BF_PrintError("Error deleting record in file hp1");
HP_CloseFile(fdhp1);
return -1;
}
printf("\nSearching for records with surname PAPAPETROU in file hp1\n");
HP_GetAllEntries(fdhp1, "surname", "PAPAPETROU");
if( HP_CloseFile(fdhp1) < 0)
{
BF_PrintError("Error closing file hp1");
return -1;
}
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////////////
return 0;
}
int main()
{
int athletesFd;
int athletesBlockNum;
char *athletesBlockBuf;
int athleteId;
char athleteName[BF_MAIN_NAME_SIZE];
char athleteSurName[BF_MAIN_NAME_SIZE];
/* Αρχικοποίηση του επιπέδου αρχείου μπλοκ */
BF_Init();
/* ’νοιγμα του αρχείου ATHLETES */
athletesFd = BF_OpenFile("ATHLETES");
if (athletesFd < 0)
{
BF_PrintError("Error in BF_OpenFile called on ATHLETES.");
return;
}
/* Εκτύπωση όλων των αθλητών */
if (BF_GetFirstBlock(athletesFd, &athletesBlockNum, &athletesBlockBuf) != BFE_OK)
BF_PrintError("Error in BF_GetFirstBlock called on ATHLETES.");
printf("File ATHLETES contains the following athletes:\nID NAME\n--- ----------------------------\n");
do
{
int i;
for (i = 0; i < BF_MAIN_MAX_NUM_OF_RECS; i++)
{
athleteId = * (int *) athletesBlockBuf;
athletesBlockBuf += sizeof(int);
strcpy(athleteName, athletesBlockBuf);
athletesBlockBuf += BF_MAIN_NAME_SIZE;
strcpy(athleteSurName, athletesBlockBuf);
athletesBlockBuf += BF_MAIN_NAME_SIZE;
if (strlen(athleteName) == 0) break;
printf("%03d %s %s\n", athleteId, athleteName, athleteSurName);
}
BF_UnpinBlock(athletesFd, athletesBlockNum, FALSE);
} while(BF_GetNextBlock(athletesFd, &athletesBlockNum, &athletesBlockBuf) == BFE_OK);
printf("\n**********************\n\n");
/* Κλείσιμο του αρχείου ATHLETES. */
if (BF_CloseFile(athletesFd) < 0)
BF_PrintError("Error in BF_CloseFile called on ATHLETES.");
/* Σβήσιμο των τριών αρχείων */
if (BF_DestroyFile("EVENTS") != BFE_OK)
BF_PrintError("Error in BF_DestroyFile called on EVENTS.");
else printf("File EVENTS successfully destroyed.\n");
if (BF_DestroyFile("ATHLETES") != BFE_OK)
BF_PrintError("Error in BF_DestroyFile called on ATHLETES.");
else printf("File ATHLETES successfully destroyed.\n");
if (BF_DestroyFile("PARTICIPATIONS") != BFE_OK)
BF_PrintError("Error in BF_DestroyFile called on PARTICIPATIONS.");
else printf("File PARTICIPATIONS successfully destroyed.\n");
return 0;
}
