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Diffstat (limited to 'proto/bmp/utils.h')
| -rw-r--r-- | proto/bmp/utils.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/proto/bmp/utils.h b/proto/bmp/utils.h new file mode 100644 index 00000000..faca2ba0 --- /dev/null +++ b/proto/bmp/utils.h @@ -0,0 +1,94 @@ +/* + * 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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