return EMUFS_NOT_FOUND;
}
-/* agrega un registro al final del archivo */
int emufs_idx_agregar(EMUFS *emu, EMUFS_REG_ID id_reg, EMUFS_BLOCK_ID location)
{
FILE *f_idx;
strcpy(name_f_idx,emu->nombre);
strcat(name_f_idx, EMUFS_IDX_EXT);
- if ( (f_idx = fopen(name_f_idx,"a+b"))==NULL ) return -1;
+ if ( (f_idx = fopen(name_f_idx,"a+"))==NULL ) return -1;
fseek(f_idx, sizeof(EMUFS_IDX)*id_reg, SEEK_SET);
reg.id_reg = id_reg;
PERR("No se pudo abrir el archivo");
return -1;
}
-
+
if (fseek(f_idx, sizeof(EMUFS_IDX)*ID, SEEK_SET) == 0) {
fread(®, sizeof(EMUFS_IDX), 1, f_idx);
if (reg.location != EMUFS_NOT_FOUND) {
return 0;
}
}
+ fclose(f_idx);
+ return -1;/*no existe el id*/
+}
+
+int emufs_idx_actualizar(EMUFS *emu, int ID, EMUFS_BLOCK_ID bloque)
+{
+ FILE *f_idx;
+ char name_f_idx[255];
+ EMUFS_IDX reg;
+
+ strcpy(name_f_idx,emu->nombre);
+ strcat(name_f_idx, EMUFS_IDX_EXT);
+ if ( (f_idx = fopen(name_f_idx, "r+")) == NULL){
+ PERR("No se pudo abrir el archivo");
+ return -1;
+ }
+ printf("actualice el id = %d\n",ID);
+ fseek(f_idx,0,SEEK_SET);
+ fseek(f_idx,ID*sizeof(EMUFS_IDX),SEEK_SET);
+ fread(®,sizeof(EMUFS_IDX),1,f_idx);
+ reg.location = bloque;
+ fseek(f_idx,-sizeof(EMUFS_IDX),SEEK_CUR);
+ fwrite(®,sizeof(EMUFS_IDX),1,f_idx);
fclose(f_idx);
- return -1;
+ return 0;
}