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cNV

cNV is a C nv library that depends on cJSON.

Feature

  • Supports multiple data types
typedef enum {
    NV_DATA_U8 = 0,          ///< U8
    NV_DATA_S8,              ///< S8
    NV_DATA_U16,             ///< U16
    NV_DATA_S16,             ///< S16
    NV_DATA_U32,             ///< U32
    NV_DATA_S32,             ///< S32
    NV_DATA_U64,             ///< U64
    NV_DATA_S64,             ///< S64
    NV_DATA_FLOAT,           ///< float
    NV_DATA_DOUBLE,          ///< double
    NV_DATA_STR,             ///< only string
    NV_DATA_STRING_ARRAY,    ///< string array
    NV_DATA_INT_ARRAY,       ///< int array
    NV_DATA_FLOAT_ARRAY,     ///< float array
    NV_DATA_DOUBLE_ARRAY,    ///< double array
    NV_DATA_IP,              ///< IP Address  (uint32_t array)
    NV_DATA_MAC              ///< MAC Address (uint32_t array)
} nv_data_type_t;
  • Supports Key-value pair
  • Supports replacement, addition, query, deletion, etc.
  • Supports operations on different files

Download

Clone the repo, install dependencies, and serve:

sudo apt-get install -y cmake gcc git
git clone --recursive  [email protected]:Junbo-Zheng/cNV.git

Build and Run

$ cmake -H. -Bbuild
$ cd --build build # add `-j <n>` with cmake >= 3.12
$ ./build/cNV

Licensing

cNV is under the Apache license, check the LICENSE file.

Contribute

Anyone is welcome to contribute. Simply fork this repository, make your changes in an own branch and create a pull-request for your change. Please do only one change per pull-request.

You found a bug? Please fill out an issue and include any data to reproduce the bug.

Examples

The mock nv data is as follows, it is just a demo, the actual data structure is more complex than this.

Refer to test.c source file for examples.

{
  "age":  30,
  "height":   175,
  "high": 140,
  "id":   88,
  "name": "Bob",
  "temp_float":   36.0999984741211,
  "temp_double":  36.2,
  "IP":   "192.168.0.1",
  "MAC":  "11-22-33-44-55-66",
  "score_str":    ["100", "150"],
  "score_int":    [100, 150],
  "score_float":  [1.1000000238418579, 1.2000000476837158],
  "score_double": [2.1, 2.2]
}

Build with Meson on Ubuntu

Install meson build dependencies

sudo apt-get install python3 python3-pip python3-setuptools \
python3-wheel ninja-build

pip3 install meson

Build and Run

mkdir builddir
meson setup builddir
meson compile -C builddir
./builddir/cNV-meson