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xpc_array_create(3)      BSD Library Functions Manual      xpc_array_create(3)

NAME
     xpc_array_create -- creation and management of XPC arrays

SYNOPSIS
     #include <xpc/xpc.h>

     xpc_object_t
     xpc_array_create(const xpc_object_t *objects, size_t count);

     void
     xpc_array_set_value(xpc_object_t array, size_t index, xpc_object_t value);

     void
     xpc_array_append_value(xpc_object_t array, xpc_object_t value);

     xpc_object_t
     xpc_array_get_value(xpc_object_t array, size_t index);

     size_t
     xpc_array_get_count(xpc_object_t array);

     bool
     xpc_array_apply(xpc_object_t array, xpc_array_applier_t applier);

     void
     xpc_array_set_bool(xpc_object_t array, size_t index, bool value);

     void
     xpc_array_set_int64(xpc_object_t array, size_t index, int64_t value);

     void
     xpc_array_set_uint64(xpc_object_t array, size_t index, uint64_t value);

     void
     xpc_array_set_double(xpc_object_t array, size_t index, double value);

     void
     xpc_array_set_date(xpc_object_t array, size_t index, int64_t value);

     void
     xpc_array_set_data(xpc_object_t array, size_t index, const void *bytes, size_t length);

     void
     xpc_array_set_string(xpc_object_t array, size_t index, const char *value);

     void
     xpc_array_set_uuid(xpc_object_t array, size_t index, const uuid_t value);

     void
     xpc_array_set_fd(xpc_object_t array, size_t index, int value);

     void
     xpc_array_set_connection(xpc_object_t array, size_t index, xpc_connection_t value);

     bool
     xpc_array_get_bool(xpc_object_t array, size_t index);

     int64_t
     xpc_array_get_int64(xpc_object_t array, size_t index);

     uint64_t
     xpc_array_get_uint64(xpc_object_t array, size_t index);

     double
     xpc_array_get_double(xpc_object_t array, size_t index);

     int64_t
     xpc_array_get_date(xpc_object_t array, size_t index);

     const void *
     xpc_array_get_data(xpc_object_t array, size_t index, size_t *length);

     const uint8_t *
     xpc_array_get_uuid(xpc_object_t array, size_t index);

     const char *
     xpc_array_get_string(xpc_object_t array, size_t index);

     int
     xpc_array_get_fd(xpc_object_t array, size_t index);

     xpc_connection_t
     xpc_array_get_connection(xpc_object_t array, size_t index);

ARRAYS
     XPC arrays are collections of XPC objects ordered by index. The index is zero-based. XPC arrays are
     contiguous, and values must exist at all indexes between zero and the greatest index of the array. A
     hole in the array can be simulated by using a null object as returned by xpc_null_create(3).

CREATION
     The xpc_array_create() function returns a newly created array. The caller may optionally provide
     objects, a C array of XPC object references, to initialize the array. The count is used to specify the
     size of the C array.  If objects is NULL, then count must be zero. If count specifies more elements
     than are actually present in values or if values is NULL and count is non-zero, the behavior is unde-fined. undefined.
     fined.

GETTING AND SETTING VALUES
     The xpc_array_append_value() function may be used to append a value to the end of an array.  This oper-ation operation
     ation increases the count of the values in the array by one.

     The value of a specific index in the array may be set using the xpc_array_set_value() function.  The
     value must be non-NULL, and the index must already exist (i.e. less than the count provided at creation
     or extended through previous append operations).

     The value at a specific index of an array may be retrieved using the xpc_array_get_value() function.
     The result of getting a non-existing index (i.e. one that was not specified at creation or through a
     previous append operation) in undefined.

PRIMITIVE GET AND SET FUNCTIONS
     Various functions exist for retrieving primitive C and operating system types directly from an array
     without the need for an intermediate boxed object. See xpc_object(3) for more information.

     The special XPC_ARRAY_APPEND constant may be used to append a value to the end of the array instead of
     operating on a specific index.

SEE ALSO
     xpc_object(3), xpc_objects(3), xpc_dictionary_create(3)

Darwin                           1 July, 2011                           Darwin