libcm is a C development framework with an emphasis on audio signal processing applications.
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cmErr.h 3.2KB

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  1. //{
  2. //(
  3. // This class is used to format error messages and track the last error generated.
  4. //
  5. // Most of the cmHandle_t based classes use cmErr_t to format error messages with a
  6. // title, maintain the last result code which indicated an error, and to hold
  7. // a cmRpt_t object to manage application supplied text printing callbacks.
  8. //
  9. //)
  10. //
  11. #ifndef cmErr_h
  12. #define cmErr_h
  13. #ifdef __cplusplus
  14. extern "C" {
  15. #endif
  16. //(
  17. typedef struct
  18. {
  19. cmRpt_t* rpt; //< Pointer to a cmRpt_t object which is used to direct error messages to an application supplied console.
  20. const cmChar_t* label; //< This field contains a pointer to a text label used to form the error message title.
  21. cmRC_t rc; //< This is the last result code passed via one of the cmErrXXXMsg() functions.
  22. cmRC_t warnRC; //< Last warning RC
  23. } cmErr_t;
  24. // Setup a cmErr_t record.
  25. //
  26. // Note that rpt and staticLabelStr must point to client supplied objects
  27. // whose lifetime is at least that of this cmErr_t object.
  28. void cmErrSetup( cmErr_t* err, cmRpt_t* rpt, const cmChar_t* staticLabelStr );
  29. // Duplicate a cmErr_t record.
  30. void cmErrClone( cmErr_t* dstErr, const cmErr_t* srcErr );
  31. // Error Reporting functions:
  32. // Functions to signal an error. The rc argument is generally specific to the
  33. // client class using the error. See the kXXXRC enumerations in the handle based
  34. // classes for examples of result codes.
  35. cmRC_t cmErrMsg( cmErr_t* err, cmRC_t rc, const cmChar_t* fmt, ... );
  36. cmRC_t cmErrVMsg(cmErr_t* err, cmRC_t rc, const cmChar_t* fmt, va_list vl );
  37. // Report Errors which contain accompanying system error codes.
  38. // Use these functions when a system error (e.g. Unix errno) gives additional information
  39. // about the source of the error.
  40. cmRC_t cmErrSysMsg( cmErr_t* err, cmRC_t rc, cmSysErrCode_t sysErrCode, const cmChar_t* fmt, ... );
  41. cmRC_t cmErrVSysMsg(cmErr_t* err, cmRC_t rc, cmSysErrCode_t sysErrCode, const cmChar_t* fmt, va_list vl );
  42. // Warning Reporting functions:
  43. // Errors generally result in a task aborting. Warnings are informative but the task is
  44. // expected to continue.
  45. // Functions to signal a warning. The rc argument is generally specific to the
  46. // client class using the error. See the kXXXRC enumerations in the handle based
  47. // classes for examples of result codes.
  48. cmRC_t cmErrWarnMsg( cmErr_t* err, cmRC_t rc, const cmChar_t* fmt, ... );
  49. cmRC_t cmErrWarnVMsg(cmErr_t* err, cmRC_t rc, const cmChar_t* fmt, va_list vl );
  50. // Report warnings which contain accompanying system error codes.
  51. // Use these functions when a system error (e.g. Unix errno) gives additional information
  52. // about the source of the error.
  53. cmRC_t cmErrWarnSysMsg( cmErr_t* err, cmRC_t rc, cmSysErrCode_t sysErrCode, const cmChar_t* fmt, ... );
  54. cmRC_t cmErrWarnVSysMsg(cmErr_t* err, cmRC_t rc, cmSysErrCode_t sysErrCode, const cmChar_t* fmt, va_list vl );
  55. // Return the last recorded RC.
  56. cmRC_t cmErrLastRC( cmErr_t* err );
  57. // Return the last recorded RC and set it to a new value.
  58. cmRC_t cmErrSetRC( cmErr_t* err, cmRC_t rc );
  59. // Return the last recorded RC and set it to cmOkRC.
  60. cmRC_t cmErrClearRC( cmErr_t* err );
  61. //)
  62. //}
  63. #ifdef __cplusplus
  64. }
  65. #endif
  66. #endif