1 #include <stdio.h>

2 #include <string.h>

3

4 template <typename T>

5 DataSet<T>::DataSet(T (*load_func)(const char*), void (*destr_func)(T))

6 {

7 load = load_func;

8 destroy = destr_func;

9 }

10

11 template <typename T>

12 DataSet<T>::~DataSet()

13 {

14 clear();

15 }

16

17 template <typename T>

18 void DataSet<T>::clear()

19 {

20 if(destroy) {

21 typename std::map<std::string, T>::iterator it = data.begin();

22 while(it != data.end()) {

23 destroy(it++->second);

24 }

25 }

26 data.clear();

27 }

28

29 template <typename T>

30 T DataSet<T>::get(const char *name) const

31 {

32 typename std::map<std::string, T>::const_iterator iter = data.find(name);

33 if(iter != data.end()) {

34 return iter->second;

35 }

36

37 const char *fname, *slash;

38 if((slash = strrchr(name, '/'))) {

39 fname = slash + 1;

40 } else {

41 fname = name;

42 }

43

44 std::string path = fname;

45 if(path.empty()) {

46 fprintf(stderr, "can't find data file: %s\n", name);

47 return 0;

48 }

49

50 T res = load(path.c_str());

51 if(res) {

52 data[name] = res;

53 }

54 return res;

55 }