FreeCalypso > hg > freecalypso-sw
annotate nuc-fw/riviera/support/exception.h @ 129:7d7950d7f924
Riviera should be ready for the first TI fw build attempt
author | Michael Spacefalcon <msokolov@ivan.Harhan.ORG> |
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date | Fri, 01 Nov 2013 06:13:58 +0000 |
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1 /* |
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2 ****************************** |
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3 * |
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4 * |
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5 * Initialial version: Laurent Deniau, Laurent.Deniau@cern.ch |
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6 * |
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7 * For more information, please see the paper: |
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8 * http://cern.ch/Laurent.Deniau/html/oopc/exception.html |
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9 * |
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10 * ----------------------------------------------------------- |
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11 * |
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12 * Strong rework and adaption to riviera by Christophe Favergeon |
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13 * |
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14 ****************************** |
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15 */ |
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16 |
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17 #ifndef RVF_EXCEPTION_H |
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18 #define RVF_EXCEPTION_H |
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19 |
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20 #include "../rvf/rvf_api.h" |
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21 #include "../rvf/rvf_target.h" |
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22 |
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23 #include <string.h> |
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24 |
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25 |
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26 |
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27 //#ifndef __STDC__ |
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28 //# error "exception.h needs ISO C compiler to work properly" |
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29 //#endif |
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30 |
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31 #include <setjmp.h> |
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32 |
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33 typedef enum K_RVF_EXCEPTIONS { E_invalid=1, E_not_enough_memory,E_unknown } T_RVF_EXCEPTIONS; |
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34 |
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35 typedef void (*T_RVF_RELEASE_PROTECTED_POINTER)(void *p); |
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36 |
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37 /* |
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38 choose context savings |
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39 */ |
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40 |
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41 #define rvf_save_context_buffer_(context) setjmp(context) |
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42 #define rvf_restore_context_buffer_(context, val) longjmp(context, val) |
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43 |
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44 /* |
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45 some hidden types used to handle exceptions |
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46 */ |
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47 |
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48 /* type of stack of protected pointer */ |
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49 struct _protectedPtr_ { |
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50 struct _protectedPtr_ *next; |
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51 struct _protectedPtr_ *previous; |
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52 void *ptr; |
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53 T_RVF_RELEASE_PROTECTED_POINTER func; |
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54 }; |
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55 |
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56 /* type of stack of exception */ |
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57 struct _exceptionContext_ { |
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58 struct _exceptionContext_ *next; |
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59 struct _protectedPtr_ *stack; |
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60 jmp_buf context; |
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61 }; |
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62 |
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63 extern struct _exceptionContext_ *const _returnExceptionContext_[MAX_RVF_TASKS]; |
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64 extern struct _exceptionContext_ *_currentExceptionContext_[MAX_RVF_TASKS]; |
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65 |
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66 /* exception keywords */ |
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67 #define try \ |
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68 do { \ |
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69 struct _exceptionContext_ _localExceptionContext_ ;\ |
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70 memset(&_localExceptionContext_,0,sizeof(struct _exceptionContext_));\ |
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71 _localExceptionContext_.next=_currentExceptionContext_[rvf_get_taskid()];\ |
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72 _currentExceptionContext_[rvf_get_taskid()] = &_localExceptionContext_; \ |
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73 do { \ |
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74 int const exception = \ |
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75 rvf_save_context_buffer_(_currentExceptionContext_[rvf_get_taskid()]->context); \ |
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76 if (!exception) { |
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77 |
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78 #define catch(except) \ |
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79 } else if ((int)(except) == exception) { \ |
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80 _currentExceptionContext_[rvf_get_taskid()] = _currentExceptionContext_[rvf_get_taskid()]->next; |
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81 |
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82 #define catch_any \ |
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83 } else { \ |
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84 _currentExceptionContext_[rvf_get_taskid()] = _currentExceptionContext_[rvf_get_taskid()]->next; |
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85 |
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86 #define endtry \ |
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87 } \ |
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88 } while(0); \ |
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89 if (_currentExceptionContext_[rvf_get_taskid()] == &_localExceptionContext_) { \ |
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90 rvf_forget_protected_ptr();\ |
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91 _currentExceptionContext_[rvf_get_taskid()] = _currentExceptionContext_[rvf_get_taskid()]->next; \ |
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92 } \ |
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93 } while(0) |
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94 |
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95 #define rethrow throw(exception) |
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96 #define break_try break |
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97 |
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98 /* |
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99 #define return_try(...) \ |
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100 do { \ |
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101 _currentExceptionContext_ = _returnExceptionContext_; \ |
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102 return __VA_ARGS__; \ |
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103 } while(0) |
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104 */ |
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105 |
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106 #define throw(except) _exceptionThrow_((int)(except)) |
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107 |
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108 |
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109 /* |
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110 extern declarations |
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111 */ |
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112 |
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113 extern void _exceptionThrow_(int except); |
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114 |
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115 extern void rvf_forget_protected_ptr(); |
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116 extern void rvf_protect_pointer(T_RVF_MB_ID mb_id,void *p,T_RVF_RELEASE_PROTECTED_POINTER func); |
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117 |
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118 #define RVF_PROTECT(bank,p) rvf_protect_pointer(bank,p,(T_RVF_RELEASE_PROTECTED_POINTER)rvf_free_buf) |
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119 |
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120 #define THROW_IF_ERROR(err) if (err!=0) throw(E_unknown) |
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121 #define THROW_IF_NULL(p) if (p==NULL) throw(E_not_enough_memory) |
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122 #define THROW_IF_YELLOW(b,p) if ((p==NULL) || (rvf_get_mb_status(b)==RVF_YELLOW)) throw(E_not_enough_memory) |
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123 #endif |