Generic Value Storage

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Generic Value Storage
Eina » Data Types » Containers

Abstracts generic data storage and access to it in an extensible and efficient way. More...

## Modules
| Generic Value management
| Generic Value Array management
| Generic Value List management
| Generic Value Hash management
| Generic Value Blob management
| Generic Value Struct management
| Generic Value Type management
| Generic Value Optional management

## Data Structures
union | _Eina_Value_Union
| All possible value types. More...

## Macros
#define | EINA_VALUE_EMPTY ((Eina_Value){ NULL, { { 0, 0, 0, 0, 0, 0, 0, 0 } } })
| This is simply a value with all memory zeroed.

## Typedefs
typedef struct _Eina_Value | Eina_Value
| Store generic values.
typedef struct _Eina_Value_Type | Eina_Value_Type
| Describes the data contained by the value.
typedef union _Eina_Value_Union | Eina_Value_Union
| Union of all known value types.

## Variables
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_ERROR
| manages Eina_Error values.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_VALUE
| manages Eina_Value values.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_UCHAR
| manages unsigned char type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_BOOL
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_USHORT
| manages unsigned short type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_UINT
| manages unsigned int type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_ULONG
| manages unsigned long type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_TIMESTAMP
| manages unsigned long type used for timestamps.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_UINT64
| manages unsigned integer of 64 bits type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_CHAR
| manages char type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_SHORT
| manages short type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_INT
| manages int type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_LONG
| manages long type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_INT64
| manages integer of 64 bits type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_FLOAT
| manages float type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_DOUBLE
| manages double type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_STRINGSHARE
| manages stringshared string type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_STRING
| manages string type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_ARRAY
| manages array type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_LIST
| manages list type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_HASH
| manages hash type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_TIMEVAL
| manages 'struct timeval' type
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_BLOB
| manages blob of bytes type, see Eina_Value_Blob
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_STRUCT
| manages struct type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_TM
| manages 'struct tm' type
EINA_API Eina_Error | EINA_ERROR_VALUE_FAILED
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_ERROR = NULL
| manages Eina_Error values.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_VALUE = NULL
| manages Eina_Value values.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_UCHAR = NULL
| manages unsigned char type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_USHORT = NULL
| manages unsigned short type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_UINT = NULL
| manages unsigned int type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_ULONG = NULL
| manages unsigned long type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_TIMESTAMP = NULL
| manages unsigned long type used for timestamps.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_UINT64 = NULL
| manages unsigned integer of 64 bits type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_CHAR = NULL
| manages char type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_SHORT = NULL
| manages short type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_INT = NULL
| manages int type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_LONG = NULL
| manages long type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_INT64 = NULL
| manages integer of 64 bits type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_FLOAT = NULL
| manages float type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_DOUBLE = NULL
| manages double type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_STRINGSHARE = NULL
| manages stringshared string type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_STRING = NULL
| manages string type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_ARRAY = NULL
| manages array type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_LIST = NULL
| manages list type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_HASH = NULL
| manages hash type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_TIMEVAL = NULL
| manages 'struct timeval' type
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_BLOB = NULL
| manages blob of bytes type, see Eina_Value_Blob
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_STRUCT = NULL
| manages struct type.
EINA_API const Eina_Value_Type * | EINA_VALUE_TYPE_TM = NULL
| manages 'struct tm' type

## Detailed Description

Abstracts generic data storage and access to it in an extensible and efficient way.

It comes with pre-defined types for numbers, arrays, lists, hashes, blobs and structs. It is able to convert between data types, including to string.

It is meant for simple data types, providing uniform access and release functions, useful to exchange data preserving their types. For more complex hierarchical data, with properties and children, reference counting, inheritance and interfaces,

Examples of usage of the Eina_Value API:

- Eina_Value usage
- Eina_Value struct usage
- Eina value custom type example

## Macro Definition Documentation

## ◆ EINA_VALUE_EMPTY

#define EINA_VALUE_EMPTY ((Eina_Value){ NULL, { { 0, 0, 0, 0, 0, 0, 0, 0 } } })

This is simply a value with all memory zeroed.

It may be used to safely initialize or return a value without a type.

Since
  1.21

## Typedef Documentation

## ◆ Eina_Value

Eina_Value

Store generic values.

Since
  1.2

## ◆ Eina_Value_Type

Eina_Value_Type

Describes the data contained by the value.

Since
  1.2

## ◆ Eina_Value_Union

Eina_Value_Union

Union of all known value types.

This is only used to specify the minimum payload memory for Eina_Value.

## Variable Documentation

## ◆ EINA_VALUE_TYPE_ERROR [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_ERROR
| extern

manages Eina_Error values.

This value will hold an Eina_Error number, which can be converted to string to get its message or call eina_error_msg_get() on the number to convert yourself.

Since
  1.21

Referenced by eina_promise_reject().

## ◆ EINA_VALUE_TYPE_VALUE [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_VALUE
| extern

manages Eina_Value values.

This value will hold an Eina_Value, which can be useful for storing data inside an Eina_Value_Array.

Since
  1.21

Referenced by eina_promise_all_array(), and eina_promise_all_iterator().

## ◆ EINA_VALUE_TYPE_UCHAR [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_UCHAR
| extern

manages unsigned char type.

Since
  1.2
  1.21

## ◆ EINA_VALUE_TYPE_USHORT [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_USHORT
| extern

manages unsigned short type.

Since
  1.2

## ◆ EINA_VALUE_TYPE_UINT [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_UINT
| extern

manages unsigned int type.

Since
  1.2

## ◆ EINA_VALUE_TYPE_ULONG [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_ULONG
| extern

manages unsigned long type.

Since
  1.2

## ◆ EINA_VALUE_TYPE_TIMESTAMP [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_TIMESTAMP
| extern

manages unsigned long type used for timestamps.

Note
  this is identical in function to EINA_VALUE_TYPE_ULONG

Since
  1.2

Referenced by eina_value_util_time_string_new().

## ◆ EINA_VALUE_TYPE_UINT64 [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_UINT64
| extern

manages unsigned integer of 64 bits type.

Since
  1.2

## ◆ EINA_VALUE_TYPE_CHAR [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_CHAR
| extern

manages char type.

Since
  1.2

## ◆ EINA_VALUE_TYPE_SHORT [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_SHORT
| extern

manages short type.

Since
  1.2

## ◆ EINA_VALUE_TYPE_INT [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_INT
| extern

manages int type.

Since
  1.2

Referenced by ecore_main_loop_quit(), efl_exit(), eina_promise_all_array(), and eina_promise_all_iterator().

## ◆ EINA_VALUE_TYPE_LONG [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_LONG
| extern

manages long type.

Since
  1.2

## ◆ EINA_VALUE_TYPE_INT64 [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_INT64
| extern

manages integer of 64 bits type.

Since
  1.2

## ◆ EINA_VALUE_TYPE_FLOAT [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_FLOAT
| extern

manages float type.

Since
  1.2

## ◆ EINA_VALUE_TYPE_DOUBLE [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_DOUBLE
| extern

manages double type.

Since
  1.2

## ◆ EINA_VALUE_TYPE_STRINGSHARE [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_STRINGSHARE
| extern

manages stringshared string type.

Since
  1.2

## ◆ EINA_VALUE_TYPE_STRING [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_STRING
| extern

manages string type.

Since
  1.2

Referenced by eina_value_to_string().

## ◆ EINA_VALUE_TYPE_ARRAY [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_ARRAY
| extern

manages array type.

Use the value get/set for arrays:

- eina_value_array_get() and eina_value_array_set()
- eina_value_array_vget() and eina_value_array_vset()
- eina_value_array_pget() and eina_value_array_pset()

eina_value_set() takes an Eina_Value_Array where just `subtype` and `step` are used. If there is an `array`, it will be copied (including each item) and its contents must be properly configurable as `subtype` expects. eina_value_pset() takes a pointer to an Eina_Value_Array. For your convenience, use eina_value_array_setup().

eina_value_get() and eina_value_pget() takes a pointer to Eina_Value_Array, it's an exact copy of the current structure in use by value, no copies are done.

Since
  1.2

## ◆ EINA_VALUE_TYPE_LIST [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_LIST
| extern

manages list type.

Use the value get/set for lists:

- eina_value_list_get() and eina_value_list_set()
- eina_value_list_vget() and eina_value_list_vset()
- eina_value_list_pget() and eina_value_list_pset()

eina_value_set() takes an Eina_Value_List where just `subtype` is used. If there is an `list`, it will be copied (including each item) and its contents must be properly configurable as `subtype` expects. eina_value_pset() takes a pointer to an Eina_Value_List. For your convenience, use eina_value_list_setup().

eina_value_get() and eina_value_pget() takes a pointer to Eina_Value_List, it's an exact copy of the current structure in use by value, no copies are done.

Since
  1.2

## ◆ EINA_VALUE_TYPE_HASH [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_HASH
| extern

manages hash type.

Use the value get/set for hashes:

- eina_value_hash_get() and eina_value_hash_set()
- eina_value_hash_vget() and eina_value_hash_vset()
- eina_value_hash_pget() and eina_value_hash_pset()

eina_value_set() takes an Eina_Value_Hash where just `subtype` and `buckets_power_size` are used. If there is an `hash`, it will be copied (including each item) and its contents must be properly configurable as `subtype` expects. eina_value_pset() takes a pointer to an Eina_Value_Hash. For your convenience, use eina_value_hash_setup().

eina_value_get() and eina_value_pget() takes a pointer to Eina_Value_Hash, it's an exact copy of the current structure in use by value, no copies are done.

Note
  Be aware that hash data is always an allocated memory of size defined by `subtype->value_size`. If your `subtype` is an integer, add as data malloc(sizeof(int)). If your `subtype` is an string, add as data malloc(sizeof(char*)) and this data value must point to strdup(string)!

Since
  1.2

## ◆ EINA_VALUE_TYPE_TIMEVAL [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_TIMEVAL
| extern

manages 'struct timeval' type

eina_value_set() takes a "struct timeval" from sys/time.h. eina_value_pset() takes a pointer to "struct timeval".

eina_value_get() and eina_value_pget() takes a pointer to "struct timeval" and it's an exact copy of value.

Since
  1.2

## ◆ EINA_VALUE_TYPE_BLOB [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_BLOB
| extern

manages blob of bytes type, see Eina_Value_Blob

eina_value_set() takes an Eina_Value_Blob eina_value_pset() takes a pointer to Eina_Value_Blob.

eina_value_get() and eina_value_pget() takes a pointer to Eina_Value_Blob and it's an exact copy of value, no allocations are made.

Memory is untouched unless you provide `ops` (operations) pointer.

Since
  1.2

Referenced by eina_value_to_binbuf().

## ◆ EINA_VALUE_TYPE_STRUCT [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_STRUCT
| extern

manages struct type.

Use the value get/set for structs:

- eina_value_struct_get() and eina_value_struct_set()
- eina_value_struct_vget() and eina_value_struct_vset()
- eina_value_struct_pget() and eina_value_struct_pset()

eina_value_set() takes an Eina_Value_Struct where just `desc` is used. If there is an `memory`, it will be copied (including each member) and its contents must be properly configurable as `desc` expects. eina_value_pset() takes a pointer to an Eina_Value_Struct. For your convenience, use eina_value_struct_setup().

eina_value_get() and eina_value_pget() takes a pointer to Eina_Value_Struct, it's an exact copy of the current structure in use by value, no copies are done.

Since
  1.2

## ◆ EINA_VALUE_TYPE_TM [1/2]

EINA_API const Eina_Value_Type* EINA_VALUE_TYPE_TM
| extern

manages 'struct tm' type

eina_value_set() takes a "struct tm" from time.h. eina_value_pset() takes a pointer to "struct tm".

eina_value_get() and eina_value_pget() takes a pointer to "struct tm" and it's an exact copy of value.

Since
  1.21

## ◆ EINA_VALUE_TYPE_ERROR [2/2]

EINA_VALUE_TYPE_ERROR = NULL

manages Eina_Error values.

This value will hold an Eina_Error number, which can be converted to string to get its message or call eina_error_msg_get() on the number to convert yourself.

Since
  1.21

Referenced by eina_promise_reject().

## ◆ EINA_VALUE_TYPE_VALUE [2/2]

EINA_VALUE_TYPE_VALUE = NULL

manages Eina_Value values.

This value will hold an Eina_Value, which can be useful for storing data inside an Eina_Value_Array.

Since
  1.21

Referenced by eina_promise_all_array(), and eina_promise_all_iterator().

## ◆ EINA_VALUE_TYPE_UCHAR [2/2]

EINA_VALUE_TYPE_UCHAR = NULL

manages unsigned char type.

Since
  1.2
  1.21

Examples
  eina_value_03.c.

## ◆ EINA_VALUE_TYPE_USHORT [2/2]

EINA_VALUE_TYPE_USHORT = NULL

manages unsigned short type.

Since
  1.2

Examples
  eina_value_03.c.

## ◆ EINA_VALUE_TYPE_UINT [2/2]

EINA_VALUE_TYPE_UINT = NULL

manages unsigned int type.

Since
  1.2

Examples
  eina_value_03.c.

## ◆ EINA_VALUE_TYPE_ULONG [2/2]

EINA_VALUE_TYPE_ULONG = NULL

manages unsigned long type.

Since
  1.2

Examples
  eina_value_03.c.

## ◆ EINA_VALUE_TYPE_TIMESTAMP [2/2]

EINA_VALUE_TYPE_TIMESTAMP = NULL

manages unsigned long type used for timestamps.

Note
  this is identical in function to EINA_VALUE_TYPE_ULONG

Since
  1.2

Examples
  eina_value_03.c.

Referenced by eina_value_util_time_string_new().

## ◆ EINA_VALUE_TYPE_UINT64 [2/2]

EINA_VALUE_TYPE_UINT64 = NULL

manages unsigned integer of 64 bits type.

Since
  1.2

Examples
  eina_value_03.c.

## ◆ EINA_VALUE_TYPE_CHAR [2/2]

EINA_VALUE_TYPE_CHAR = NULL

manages char type.

Since
  1.2

Examples
  eina_value_02.c, and eina_value_03.c.

## ◆ EINA_VALUE_TYPE_SHORT [2/2]

EINA_VALUE_TYPE_SHORT = NULL

manages short type.

Since
  1.2

Examples
  eina_value_03.c.

## ◆ EINA_VALUE_TYPE_INT [2/2]

EINA_VALUE_TYPE_INT = NULL

manages int type.

Since
  1.2

Examples
  complex-types-client-eina-value.c, eina_value_01.c, eina_value_02.c, eina_value_03.c, and prefs_data_example.c.

Referenced by ecore_main_loop_quit(), efl_exit(), eina_promise_all_array(), and eina_promise_all_iterator().

## ◆ EINA_VALUE_TYPE_LONG [2/2]

EINA_VALUE_TYPE_LONG = NULL

manages long type.

Since
  1.2

Examples
  eina_value_03.c.

## ◆ EINA_VALUE_TYPE_INT64 [2/2]

EINA_VALUE_TYPE_INT64 = NULL

manages integer of 64 bits type.

Since
  1.2

Examples
  eina_value_03.c.

## ◆ EINA_VALUE_TYPE_FLOAT [2/2]

EINA_VALUE_TYPE_FLOAT = NULL

manages float type.

Since
  1.2

Examples
  eina_value_03.c.

## ◆ EINA_VALUE_TYPE_DOUBLE [2/2]

EINA_VALUE_TYPE_DOUBLE = NULL

manages double type.

Since
  1.2

Examples
  eina_value_03.c.

## ◆ EINA_VALUE_TYPE_STRINGSHARE [2/2]

EINA_VALUE_TYPE_STRINGSHARE = NULL

manages stringshared string type.

Since
  1.2

Examples
  eina_value_03.c.

## ◆ EINA_VALUE_TYPE_STRING [2/2]

EINA_VALUE_TYPE_STRING = NULL

manages string type.

Since
  1.2

Examples
  complex-types-client-eina-value.c, eina_value_01.c, and eina_value_03.c.

Referenced by eina_value_to_string().

## ◆ EINA_VALUE_TYPE_ARRAY [2/2]

EINA_VALUE_TYPE_ARRAY = NULL

manages array type.

Use the value get/set for arrays:

- eina_value_array_get() and eina_value_array_set()
- eina_value_array_vget() and eina_value_array_vset()
- eina_value_array_pget() and eina_value_array_pset()

eina_value_set() takes an Eina_Value_Array where just `subtype` and `step` are used. If there is an `array`, it will be copied (including each item) and its contents must be properly configurable as `subtype` expects. eina_value_pset() takes a pointer to an Eina_Value_Array. For your convenience, use eina_value_array_setup().

eina_value_get() and eina_value_pget() takes a pointer to Eina_Value_Array, it's an exact copy of the current structure in use by value, no copies are done.

Since
  1.2

Examples
  complex-types-client-eina-value.c.

## ◆ EINA_VALUE_TYPE_LIST [2/2]

EINA_VALUE_TYPE_LIST = NULL

manages list type.

Use the value get/set for lists:

- eina_value_list_get() and eina_value_list_set()
- eina_value_list_vget() and eina_value_list_vset()
- eina_value_list_pget() and eina_value_list_pset()

eina_value_set() takes an Eina_Value_List where just `subtype` is used. If there is an `list`, it will be copied (including each item) and its contents must be properly configurable as `subtype` expects. eina_value_pset() takes a pointer to an Eina_Value_List. For your convenience, use eina_value_list_setup().

eina_value_get() and eina_value_pget() takes a pointer to Eina_Value_List, it's an exact copy of the current structure in use by value, no copies are done.

Since
  1.2

## ◆ EINA_VALUE_TYPE_HASH [2/2]

EINA_VALUE_TYPE_HASH = NULL

manages hash type.

Use the value get/set for hashes:

- eina_value_hash_get() and eina_value_hash_set()
- eina_value_hash_vget() and eina_value_hash_vset()
- eina_value_hash_pget() and eina_value_hash_pset()

eina_value_set() takes an Eina_Value_Hash where just `subtype` and `buckets_power_size` are used. If there is an `hash`, it will be copied (including each item) and its contents must be properly configurable as `subtype` expects. eina_value_pset() takes a pointer to an Eina_Value_Hash. For your convenience, use eina_value_hash_setup().

eina_value_get() and eina_value_pget() takes a pointer to Eina_Value_Hash, it's an exact copy of the current structure in use by value, no copies are done.

Note
  Be aware that hash data is always an allocated memory of size defined by `subtype->value_size`. If your `subtype` is an integer, add as data malloc(sizeof(int)). If your `subtype` is an string, add as data malloc(sizeof(char*)) and this data value must point to strdup(string)!

Since
  1.2

## ◆ EINA_VALUE_TYPE_TIMEVAL [2/2]

EINA_VALUE_TYPE_TIMEVAL = NULL

manages 'struct timeval' type

eina_value_set() takes a "struct timeval" from sys/time.h. eina_value_pset() takes a pointer to "struct timeval".

eina_value_get() and eina_value_pget() takes a pointer to "struct timeval" and it's an exact copy of value.

Since
  1.2

Examples
  eina_value_03.c.

## ◆ EINA_VALUE_TYPE_BLOB [2/2]

EINA_VALUE_TYPE_BLOB = NULL

manages blob of bytes type, see Eina_Value_Blob

eina_value_set() takes an Eina_Value_Blob eina_value_pset() takes a pointer to Eina_Value_Blob.

eina_value_get() and eina_value_pget() takes a pointer to Eina_Value_Blob and it's an exact copy of value, no allocations are made.

Memory is untouched unless you provide `ops` (operations) pointer.

Since
  1.2

Referenced by eina_value_to_binbuf().

## ◆ EINA_VALUE_TYPE_STRUCT [2/2]

EINA_VALUE_TYPE_STRUCT = NULL

manages struct type.

Use the value get/set for structs:

- eina_value_struct_get() and eina_value_struct_set()
- eina_value_struct_vget() and eina_value_struct_vset()
- eina_value_struct_pget() and eina_value_struct_pset()

eina_value_set() takes an Eina_Value_Struct where just `desc` is used. If there is an `memory`, it will be copied (including each member) and its contents must be properly configurable as `desc` expects. eina_value_pset() takes a pointer to an Eina_Value_Struct. For your convenience, use eina_value_struct_setup().

eina_value_get() and eina_value_pget() takes a pointer to Eina_Value_Struct, it's an exact copy of the current structure in use by value, no copies are done.

Since
  1.2

Examples
  complex-types-client-eina-value.c, and eina_value_02.c.

## ◆ EINA_VALUE_TYPE_TM [2/2]

EINA_VALUE_TYPE_TM = NULL

manages 'struct tm' type

eina_value_set() takes a "struct tm" from time.h. eina_value_pset() takes a pointer to "struct tm".

eina_value_get() and eina_value_pget() takes a pointer to "struct tm" and it's an exact copy of value.

Since
  1.21