Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4973 | right-hear | 1 | /* Copyright (C) 1995 DJ Delorie, see COPYING.DJ for details */ |
| 2 | #include |
||
| 3 | #include |
||
| 4 | #include |
||
| 5 | #include |
||
| 6 | #include |
||
| 7 | #include |
||
| 8 | |||
| 9 | static int num_fds; |
||
| 10 | static __FSEXT_Function **func_list; |
||
| 11 | static int tmp_ext=0xF000; |
||
| 12 | |||
| 13 | static void |
||
| 14 | init(void) |
||
| 15 | { |
||
| 16 | static int init_count = -1; |
||
| 17 | if (init_count == __bss_count) |
||
| 18 | return; |
||
| 19 | init_count = __bss_count; |
||
| 20 | num_fds = 0; |
||
| 21 | func_list = 0; |
||
| 22 | } |
||
| 23 | |||
| 24 | int __FSEXT_alloc_fd(__FSEXT_Function *_function) |
||
| 25 | { |
||
| 26 | int fd; |
||
| 27 | init(); |
||
| 28 | fd=tmp_ext++; |
||
| 29 | __FSEXT_set_function(fd, _function); |
||
| 30 | return fd; |
||
| 31 | } |
||
| 32 | |||
| 33 | int |
||
| 34 | __FSEXT_set_function(int _fd, __FSEXT_Function *_function) |
||
| 35 | { |
||
| 36 | init(); |
||
| 37 | |||
| 38 | if (_fd < 0) |
||
| 39 | return 1; |
||
| 40 | |||
| 41 | if (num_fds <= _fd) |
||
| 42 | { |
||
| 43 | int old_fds = num_fds, i; |
||
| 44 | num_fds = (_fd+256) & ~255; |
||
| 45 | func_list = (__FSEXT_Function **)realloc(func_list, num_fds * sizeof(__FSEXT_Function *)); |
||
| 46 | if (func_list == 0) |
||
| 47 | return 1; |
||
| 48 | for (i=old_fds; i |
||
| 49 | func_list[i] = 0; |
||
| 50 | } |
||
| 51 | func_list[_fd] = _function; |
||
| 52 | return 0; |
||
| 53 | } |
||
| 54 | |||
| 55 | __FSEXT_Function * |
||
| 56 | __FSEXT_get_function(int _fd) |
||
| 57 | { |
||
| 58 | init(); |
||
| 59 | if (_fd < 0 || _fd >= num_fds) |
||
| 60 | return 0; |
||
| 61 | return func_list[_fd]; |
||
| 62 | } |