1PMEMKV_JSON_CONFIG(3)     PMEMKV Programmer's Manual     PMEMKV_JSON_CONFIG(3)
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NAME

6       pmemkv_json_config - helper configuration API for libpmemkv
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SYNOPSIS

9              #include <libpmemkv_json_config.h>
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11              int pmemkv_config_from_json(pmemkv_config *config, const char *jsonconfig);
12              const char *pmemkv_config_from_json_errormsg(void);
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14       For  general  description  of  pmemkv  and  available engines see libp‐
15       memkv(7).  For description of pmemkv core API  see  libpmemkv(3).   For
16       description of configuration API for libpmemkv see libpmemkv_config(3).
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DESCRIPTION

19       pmemkv_json_config is a helper library that provides two functions:
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21       int pmemkv_config_from_json(pmemkv_config *config, const char *jsoncon‐
22       fig);
23              Parses JSON string and puts all items found in JSON into config.
24              Allowed  types  in JSON strings and their corresponding types in
25              pmemkv_config are: + number – int64 or uint64 + string  –  const
26              char   *  +  object  –  (another  JSON  string)  ->  pointer  to
27              pmemkv_config (can be obtained using pmemkv_config_get_object) +
28              True, False – int64
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30       const char *pmemkv_config_from_json_errormsg(void);
31              Returns a human readable string describing the last error.
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33       The  `pmemkv_config_from_json'  function  depends  on RapidJSON library
34       what is the direct cause of the creation of this small library.
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36       The building of this library is enabled by default.  It can be disabled
37       by setting the BUILD_JSON_CONFIG CMake variable to OFF:
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39              cmake .. -DBUILD_JSON_CONFIG=OFF
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41   ERRORS
42       The pmemkv_config_from_json() function returns status.  Possible return
43       values are:
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45       • PMEMKV_STATUS_OK – no error
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47       • PMEMKV_STATUS_UNKNOWN_ERROR – unknown error
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49       • PMEMKV_STATUS_CONFIG_PARSING_ERROR – parsing config data failed
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EXAMPLE

52       An example can be found in libpmemkv_config(3).
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SEE ALSO

55       libpmemkv(7), libpmemkv(3), libpmemkv_config(3) and <https://pmem.io>
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59PMEMKV - pmemkv_json_config version2012.11-01-27             PMEMKV_JSON_CONFIG(3)
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