libcm is a C development framework with an emphasis on audio signal processing applications.
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  1. // The following two macros must be defined prior to including this code:
  2. // #define cmSFX(a) a##_MySuffix
  3. // #define cmTYPE My_Type
  4. // Also define cmGEN_HDR to generate the .h code and/or
  5. // cmGEN_CODE to generate the .c code
  6. #ifdef cmGEN_HDR
  7. typedef int (*cmSFX(cmDListFunc))( void* arg, const cmTYPE* v0, const cmTYPE* v1 );
  8. cmDlRC_t cmSFX(cmDListAlloc)( cmCtx_t* ctx, cmDListH_t* hp, cmSFX(cmDListFunc) func, void* funcArg );
  9. cmDlRC_t cmSFX(cmDListInsert)( cmDListH_t h, const cmTYPE* recd, bool resyncFl );
  10. cmDlRC_t cmSFX(cmDListDelete)( cmDListH_t h, const cmTYPE* recd, bool resyncFl );
  11. cmDlRC_t cmSFX(cmDListAllocIndex)( cmDListH_t h, unsigned indexId, cmSFX(cmDListFunc) f, void* farg );
  12. const cmTYPE* cmSFX(cmDListIterGet)( cmDListIterH_t iH );
  13. const cmTYPE* cmSFX(cmDListIterPrev)( cmDListIterH_t iH );
  14. const cmTYPE* cmSFX(cmDListIterNext)( cmDListIterH_t iH );
  15. const cmTYPE* cmSFX(cmDListIterFind)( cmDListIterH_t iH, const cmTYPE* key);
  16. #endif // cmGEN_HDR
  17. #ifdef cmGEN_CODE
  18. typedef struct
  19. {
  20. cmSFX(cmDListFunc) func;
  21. void* funcArg;
  22. } cmSFX(_cmDListArg);
  23. // This function is called when the index identified by indexId is about to be deleted.
  24. // It is used to cleanup the arg record created by cmSFX(cmDListIndexAlloc()).
  25. void cmSFX(_cmDListIndexOnFree)( unsigned indexId, void* arg )
  26. {
  27. cmMemFree(arg);
  28. }
  29. // Proxy function used to cast generic compare function to the user defined compare function.
  30. int cmSFX(_cmDListCmp)( void* arg, const void* v0, unsigned vn0, const void* v1, unsigned vn1 )
  31. {
  32. assert(vn0==vn1);
  33. cmSFX(_cmDListArg)* a = (cmSFX(_cmDListArg)*)arg;
  34. return a->func(a->funcArg,(const cmTYPE*)v0,(const cmTYPE*)v1);
  35. }
  36. cmDlRC_t cmSFX(cmDListAlloc)( cmCtx_t* ctx, cmDListH_t* hp, cmSFX(cmDListFunc) func, void* funcArg )
  37. {
  38. cmDlRC_t rc;
  39. cmSFX(_cmDListArg)* a = NULL;
  40. if( func != NULL )
  41. {
  42. // allocate a record to redirect the compare function callback
  43. a = cmMemAllocZ(cmSFX(_cmDListArg),1);
  44. a->func = func;
  45. a->funcArg = funcArg;
  46. }
  47. if((rc = cmDListAlloc(ctx,hp,cmSFX(_cmDListCmp),a)) != kOkDlRC )
  48. return rc;
  49. if( func != NULL )
  50. if((rc = cmDListIndexSetFreeFunc(*hp,0,cmSFX(_cmDListIndexOnFree))) != kOkDlRC )
  51. cmDListFree(hp);
  52. return rc;
  53. }
  54. cmDlRC_t cmSFX(cmDListIndexAlloc)( cmDListH_t h, unsigned indexId, cmSFX(cmDListFunc) func, void* funcArg )
  55. {
  56. cmDlRC_t rc;
  57. // allocate a record to redirect the compare function callback
  58. cmSFX(_cmDListArg)* a = cmMemAllocZ(cmSFX(_cmDListArg),1);
  59. a->func = func;
  60. a->funcArg = funcArg;
  61. // allocate the index
  62. if((rc = cmDListIndexAlloc(h,indexId,cmSFX(_cmDListCmp),a)) != kOkDlRC )
  63. {
  64. cmMemFree(a);
  65. goto errLabel;
  66. }
  67. // set the index clean up handler
  68. if((rc = cmDListIndexSetFreeFunc(h,indexId,cmSFX(_cmDListIndexOnFree))) != kOkDlRC )
  69. cmDListIndexFree(h,indexId);
  70. errLabel:
  71. return rc;
  72. }
  73. cmDlRC_t cmSFX(cmDListInsert)( cmDListH_t h, const cmTYPE* recd, bool resyncFl )
  74. { return cmDListInsert(h,recd,sizeof(cmTYPE),resyncFl); }
  75. cmDlRC_t cmSFX(cmDListDelete)( cmDListH_t h, const cmTYPE* recd, bool resyncFl )
  76. { return cmDListDelete(h,recd,resyncFl); }
  77. const cmTYPE* cmSFX(cmDListIterGet)( cmDListIterH_t iH )
  78. { return (const cmTYPE*)cmDListIterGet(iH,NULL);}
  79. const cmTYPE* cmSFX(cmDListIterPrev)( cmDListIterH_t iH )
  80. { return (const cmTYPE*)cmDListIterPrev(iH,NULL); }
  81. const cmTYPE* cmSFX(cmDListIterNext)( cmDListIterH_t iH )
  82. { return (const cmTYPE*)cmDListIterNext(iH,NULL); }
  83. const cmTYPE* cmSFX(cmDListIterFind)( cmDListIterH_t iH, const cmTYPE* key)
  84. { return (const cmTYPE*)cmDListIterFind(iH,key,sizeof(cmTYPE),NULL); }
  85. #endif // cmGEN_CODE
  86. #undef cmSFX
  87. #undef cmTYPE