diff options
Diffstat (limited to 'src/zabbix_server/preprocessor/preproc_worker.c')
| -rw-r--r-- | src/zabbix_server/preprocessor/preproc_worker.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/zabbix_server/preprocessor/preproc_worker.c b/src/zabbix_server/preprocessor/preproc_worker.c index 8fe8d436786..30bd514e637 100644 --- a/src/zabbix_server/preprocessor/preproc_worker.c +++ b/src/zabbix_server/preprocessor/preproc_worker.c @@ -115,6 +115,88 @@ static void worker_format_result(int step, const zbx_preproc_result_t *result, c } } +/* mock field to estimate how much data can be stored in characters, bytes or both, */ +/* depending on database backend */ + +typedef struct +{ + int bytes_num; + int chars_num; +} +zbx_db_mock_field_t; + +/****************************************************************************** + * * + * Purpose: initializes mock field * + * * + * Parameters: field - [OUT] the field data * + * field_type - [IN] the field type in database schema * + * field_len - [IN] the field size in database schema * + * * + ******************************************************************************/ +static void zbx_db_mock_field_init(zbx_db_mock_field_t *field, int field_type, int field_len) +{ + switch (field_type) + { + case ZBX_TYPE_CHAR: +#if defined(HAVE_ORACLE) + field->chars_num = field_len; + field->bytes_num = 4000; +#else + field->chars_num = field_len; + field->bytes_num = -1; +#endif + return; + } + + THIS_SHOULD_NEVER_HAPPEN; + + field->chars_num = 0; + field->bytes_num = 0; +} + +/****************************************************************************** + * * + * Purpose: 'appends' text to the field, if successful the character/byte * + * limits are updated * + * * + * Parameters: field - [IN/OUT] the mock field * + * text - [IN] the text to append * + * * + * Return value: SUCCEED - the field had enough space to append the text * + * FAIL - otherwise * + * * + ******************************************************************************/ +static int zbx_db_mock_field_append(zbx_db_mock_field_t *field, const char *text) +{ + int bytes_num, chars_num; + + if (-1 != field->bytes_num) + { + bytes_num = strlen(text); + if (bytes_num > field->bytes_num) + return FAIL; + } + else + bytes_num = 0; + + if (-1 != field->chars_num) + { + chars_num = zbx_strlen_utf8(text); + if (chars_num > field->chars_num) + return FAIL; + } + else + chars_num = 0; + + field->bytes_num -= bytes_num; + field->chars_num -= chars_num; + + return SUCCEED; +} + + + /****************************************************************************** * * * Purpose: formats preprocessing error message * |