mei_rt2mei_rt2_fix_1
Last change
on this file since 549656e was
7b548fa,
checked in by Mei <mei@…>, 13 years ago
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1) add time static constraint
2) add example balltime_rt2_typed
3) change the way that time is being kept
from 20120228T080000 to time(2012,2,28,8,0,0) and
the constraint check is via compare(op,time1,time2)
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-
Property mode set to
100644
|
File size:
1.4 KB
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Rev | Line | |
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[e95d652] | 1 | #include <stdlib.h> |
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| 2 | |
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| 3 | #include "abac_stack.h" |
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| 4 | #include "abac_util.h" |
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| 5 | |
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| 6 | abac_stack_t *abac_stack_new(void) { |
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| 7 | abac_stack_t *ret = abac_xmalloc(sizeof(abac_stack_t)); |
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| 8 | ret->elts = NULL; |
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| 9 | ret->size = 0; |
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| 10 | return ret; |
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| 11 | } |
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| 12 | |
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[da5afdf] | 13 | /* push only if it is not in there still */ |
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[7b548fa] | 14 | int abac_stack_unique_push(abac_stack_t *stack, void *elt) { |
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| 15 | if(!stack) return 0; |
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[da5afdf] | 16 | |
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| 17 | void *cur; |
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| 18 | abac_stack_foreach(stack, cur, |
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| 19 | if(cur == elt) |
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[7b548fa] | 20 | return 0; |
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[da5afdf] | 21 | ); |
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| 22 | abac_stack_push(stack,elt); |
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[7b548fa] | 23 | return 1; |
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[da5afdf] | 24 | } |
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| 25 | |
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[e95d652] | 26 | void abac_stack_push(abac_stack_t *stack, void *elt) { |
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| 27 | abac_stack_element_t *new_element = abac_xmalloc(sizeof(abac_stack_element_t)); |
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| 28 | |
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| 29 | new_element->ptr = elt; |
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| 30 | DL_APPEND(stack->elts, new_element); |
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| 31 | ++stack->size; |
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| 32 | } |
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| 33 | |
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| 34 | void *abac_stack_pop(abac_stack_t *stack) { |
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| 35 | abac_stack_element_t *cur; |
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| 36 | void *ret; |
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[da5afdf] | 37 | |
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| 38 | if(!stack) return NULL; |
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[e95d652] | 39 | |
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| 40 | if(stack->size>0) { |
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| 41 | cur=stack->elts; |
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| 42 | ret=cur->ptr; |
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[202a7f9] | 43 | DL_DELETE(stack->elts, cur); |
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[e95d652] | 44 | free(cur); |
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[202a7f9] | 45 | --stack->size; |
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[e95d652] | 46 | return ret; |
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| 47 | } |
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| 48 | // reutrn false if we don't |
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| 49 | return NULL; |
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| 50 | } |
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| 51 | |
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| 52 | int abac_stack_size(abac_stack_t *stack) { |
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[da5afdf] | 53 | if(stack) return stack->size; |
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| 54 | return 0; |
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[e95d652] | 55 | } |
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| 56 | |
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| 57 | void abac_stack_free(abac_stack_t *stack) { |
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| 58 | abac_stack_element_t *elt, *tmp; |
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| 59 | |
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[da5afdf] | 60 | if(!stack) return; |
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| 61 | |
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[e95d652] | 62 | // free everthing in the stack |
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| 63 | DL_FOREACH_SAFE(stack->elts, elt, tmp) { |
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| 64 | DL_DELETE(stack->elts, elt); |
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| 65 | free(elt); |
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| 66 | } |
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| 67 | |
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| 68 | // free the list |
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| 69 | free(stack); |
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| 70 | } |
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