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/*
* BIRD -- The BGP Monitoring Protocol (BMP)
*
* (c) 2020 Akamai Technologies, Inc. (Pawel Maslanka, pmaslank@akamai.com)
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
#ifndef _BIRD_BMP_UTILS_H_
#define _BIRD_BMP_UTILS_H_
/**
* TODO:
* - Provide descriptive explanation for the follwing enums
*/
enum bmp_result {
BMP_E_NONE = 0,
BMP_E_INVALID_ARG,
BMP_E_NULL_REF,
BMP_E_EXISTS,
BMP_E_NOT_EXISTS,
BMP_E_OPEN_SOCKET,
BMP_E_CONNECT_TO_SRV,
BMP_E_SEND_DATA,
BMP_E_BIRDSOCK_NULL_REF,
BMP_E_REMOTE_CAPS_NULL_REF,
BMP_E_NEW_TX_EVENT
};
#define BMP_FAILED(v) \
(v != BMP_E_NONE)
#define IF_BMP_FAILED_RETURN_RC(func) \
do { \
enum bmp_result rc = func; \
if (BMP_FAILED(rc)) \
{ \
return rc; \
} \
} while (0)
// The following macro requires to define locally enum bmp_result rc;
#define IF_BMP_FAILED_GOTO_LABEL(func, label) \
do { \
rc = func; \
if (BMP_FAILED(rc)) \
{ \
goto label; \
} \
} while (0)
#define IF_BMP_FAILED_PRINT_ERR_MSG(func, msg) \
do { \
enum bmp_result rc = func; \
if (BMP_FAILED(rc)) \
{ \
log(L_WARN "[BMP] " msg " (rc = %d)", rc); \
} \
} while (0)
#define IF_BMP_FAILED_PRINT_ERR_MSG_AND_GOTO_LABEL(func, msg, label) \
do { \
enum bmp_result rc = func; \
if (BMP_FAILED(rc)) \
{ \
log(L_WARN "[BMP] " msg " (rc = %d)", rc); \
goto label; \
} \
} while (0)
#define IS_NULL(ptr) \
((ptr) == NULL)
#define IF_COND_TRUE_PRINT_ERR_MSG_AND_RETURN_OPT_VAL(expr, msg, rv...) \
do { \
if ((expr)) \
{ \
log(L_WARN "[BMP] " msg); \
return rv; \
} \
} while (0)
#define IF_PTR_IS_NULL_PRINT_ERR_MSG_AND_RETURN_OPT_VAL(p, msg, rv...) \
do { \
IF_COND_TRUE_PRINT_ERR_MSG_AND_RETURN_OPT_VAL(IS_NULL(p), msg, rv); \
} while (0)
#define IF_BMP_FAILED_PRINT_ERR_MSG_AND_RETURN_OPT_VAL(func, msg, rv...) \
do { \
enum bmp_result rc = func; \
IF_COND_TRUE_PRINT_ERR_MSG_AND_RETURN_OPT_VAL(BMP_FAILED(rc), msg, rv); \
} while (0)
#endif /* _BIRD_BMP_UTILS_H_ */
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