| 1 | #include <malloc.h> |
| 2 | #include <stdio.h> |
| 3 | |
| 4 | #include "debug.h" |
| 5 | #include "element.h" |
| 6 | #include "parser.h" |
| 7 | #include "stack.h" |
| 8 | #include "storage.h" |
| 9 | #include "tabular.h" |
| 10 | |
| 11 | #include "workspace.h" |
| 12 | |
| 13 | /* allocate workspace*/ |
| 14 | |
| 15 | workspace_t *alloc_ws () |
| 16 | { |
| 17 | return (workspace_t *) callocordie (1, sizeof (workspace_t)); |
| 18 | } |
| 19 | |
| 20 | /* backup workspace*/ |
| 21 | |
| 22 | workspace_t *backup_ws (workspace_t *ws) |
| 23 | { |
| 24 | ws->answer = answer; |
| 25 | if (ws->stack) { |
| 26 | free_tab (ws->stack); |
| 27 | } |
| 28 | ws->stack = copy_tab (stack); |
| 29 | if (ws->storage) { |
| 30 | free_tab (ws->storage); |
| 31 | } |
| 32 | ws->storage = copy_tab (storage); |
| 33 | return ws; |
| 34 | } |
| 35 | |
| 36 | /* clean workspace */ |
| 37 | |
| 38 | workspace_t *clean_ws (workspace_t *ws) |
| 39 | { |
| 40 | ws->answer = 0; |
| 41 | |
| 42 | ws->id = 0; |
| 43 | |
| 44 | if (ws->root) { |
| 45 | delelement (ws->root); |
| 46 | ws->root = NULL; |
| 47 | } |
| 48 | |
| 49 | if (ws->stack) { |
| 50 | free_tab (ws->stack); |
| 51 | ws->stack = NULL; |
| 52 | } |
| 53 | |
| 54 | if (ws->string) { |
| 55 | free (ws->string); |
| 56 | ws->string = NULL; |
| 57 | } |
| 58 | |
| 59 | if (ws->storage) { |
| 60 | free_tab (ws->storage); |
| 61 | ws->storage = NULL; |
| 62 | } |
| 63 | |
| 64 | return ws; |
| 65 | } |
| 66 | |
| 67 | /* free workspace */ |
| 68 | |
| 69 | void free_ws (workspace_t *ws) |
| 70 | { |
| 71 | if (ws) { |
| 72 | clean_ws (ws); |
| 73 | free (ws); |
| 74 | } |
| 75 | } |
| 76 | |
| 77 | /* restore workspace*/ |
| 78 | |
| 79 | void restore_ws (workspace_t *ws) |
| 80 | { |
| 81 | answer = ws->answer; |
| 82 | |
| 83 | if (stack) { |
| 84 | free_tab (stack); |
| 85 | } |
| 86 | stack = copy_tab (ws->stack); |
| 87 | |
| 88 | if (storage) { |
| 89 | free_tab (storage); |
| 90 | } |
| 91 | storage = copy_tab (ws->storage); |
| 92 | } |
| 93 | |
| 94 | /* vim: set ts=4 sw=4 et: */ |