luc14n0/glib
1
0
Fork 0
mirror of https://gitlab.gnome.org/GNOME/glib.git synced 2025-02-04 10:16:17 +01:00
Code Issues Packages Projects Releases Wiki Activity

data{list,sets}, quarks: move docs from tmpl to .c

Browse Source
This commit is contained in:
Ryan Lortie 2010-01-30 23:34:19 -05:00
parent c7000fcfec
commit 6d52d34dff
5 changed files with 429 additions and 582 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
docs/reference/glib/tmpl/.gitignore vendored
View File

@ -1,5 +1,7 @@
allocators.sgml
base64.sgml
datasets.sgml
datalist.sgml
ghostutils.sgml
gurifuncs.sgml
gvarianttype.sgml
@ -7,6 +9,7 @@ hash_tables.sgml
memory_chunks.sgml
option.sgml
patterns.sgml
quarks.sgml
random_numbers.sgml
sequence.sgml
shell.sgml

244
docs/reference/glib/tmpl/datalist.sgml
View File

@ -1,244 +0,0 @@
<!-- ##### SECTION Title ##### -->
Keyed Data Lists
<!-- ##### SECTION Short_Description ##### -->
lists of data elements which are accessible by a string or GQuark identifier
<!-- ##### SECTION Long_Description ##### -->
<para>
Keyed data lists provide lists of arbitrary data elements which can be accessed
either with a string or with a #GQuark corresponding to the
string.
</para>
<para>
The #GQuark methods are quicker, since the strings have to be converted to
#GQuarks anyway.
</para>
<para>
Data lists are used for associating arbitrary data with
#GObjects, using g_object_set_data() and related functions.
</para>
<para>
To create a datalist, use g_datalist_init().
</para>
<para>
To add data elements to a datalist use g_datalist_id_set_data(),
g_datalist_id_set_data_full(), g_datalist_set_data()
and g_datalist_set_data_full().
</para>
<para>
To get data elements from a datalist use g_datalist_id_get_data() and
g_datalist_get_data().
</para>
<para>
To iterate over all data elements in a datalist use g_datalist_foreach() (not thread-safe).
</para>
<para>
To remove data elements from a datalist use g_datalist_id_remove_data() and
g_datalist_remove_data().
</para>
<para>
To remove all data elements from a datalist, use g_datalist_clear().
</para>
<!-- ##### SECTION See_Also ##### -->
<para>
</para>
<!-- ##### SECTION Stability_Level ##### -->
<!-- ##### STRUCT GData ##### -->
<para>
The #GData struct is an opaque data structure to represent a
<link linkend="glib-Keyed-Data-Lists">Keyed Data List</link>.
It should only be accessed via the following functions.
</para>
<!-- ##### FUNCTION g_datalist_init ##### -->
<para>
Resets the datalist to %NULL.
It does not free any memory or call any destroy functions.
</para>
@datalist: a pointer to a pointer to a datalist.
<!-- ##### MACRO g_datalist_id_set_data ##### -->
<para>
Sets the data corresponding to the given #GQuark id.
Any previous data with the same key is removed, and its
destroy function is called.
</para>
@dl: a datalist.
@q: the #GQuark to identify the data element.
@d: the data element, or %NULL to remove any previous element
corresponding to @q.
<!-- ##### FUNCTION g_datalist_id_set_data_full ##### -->
<para>
Sets the data corresponding to the given #GQuark id, and the function to
be called when the element is removed from the datalist.
Any previous data with the same key is removed, and its
destroy function is called.
</para>
@datalist: a datalist.
@key_id: the #GQuark to identify the data element.
@data: the data element or %NULL to remove any previous element
corresponding to @key_id.
@destroy_func: the function to call when the data element is removed. This
function will be called with the data element and can be used to free any
memory allocated for it. If @data is %NULL, then @destroy_func must
also be %NULL.
<!-- ##### FUNCTION g_datalist_id_get_data ##### -->
<para>
Retrieves the data element corresponding to @key_id.
</para>
@datalist: a datalist.
@key_id: the #GQuark identifying a data element.
@Returns: the data element, or %NULL if it is not found.
<!-- ##### MACRO g_datalist_id_remove_data ##### -->
<para>
Removes an element, using its #GQuark identifier.
</para>
@dl: a datalist.
@q: the #GQuark identifying the data element.
<!-- ##### FUNCTION g_datalist_id_remove_no_notify ##### -->
<para>
Removes an element, without calling its destroy notification function.
</para>
@datalist: a datalist.
@key_id: the #GQuark identifying a data element.
@Returns: the data previously stored at @key_id, or %NULL if none.
<!-- ##### MACRO g_datalist_set_data ##### -->
<para>
Sets the data element corresponding to the given string identifier.
</para>
@dl: a datalist.
@k: the string to identify the data element.
@d: the data element, or %NULL to remove any previous element
corresponding to @k.
<!-- ##### MACRO g_datalist_set_data_full ##### -->
<para>
Sets the data element corresponding to the given string identifier, and the
function to be called when the data element is removed.
</para>
@dl: a datalist.
@k: the string to identify the data element.
@d: the data element, or %NULL to remove any previous element corresponding to
@k.
@f: the function to call when the data element is removed. This
function will be called with the data element and can be used to free any
memory allocated for it. If @d is %NULL, then @f must also be %NULL.
<!-- ##### MACRO g_datalist_get_data ##### -->
<para>
Gets a data element, using its string identifer.
This is slower than g_datalist_id_get_data() because the string is first
converted to a #GQuark.
</para>
@dl: a datalist.
@k: the string identifying a data element.
@Returns: the data element, or %NULL if it is not found.
<!-- ##### MACRO g_datalist_remove_data ##### -->
<para>
Removes an element using its string identifier.
The data element's destroy function is called if it has been set.
</para>
@dl: a datalist.
@k: the string identifying the data element.
<!-- ##### MACRO g_datalist_remove_no_notify ##### -->
<para>
Removes an element, without calling its destroy notifier.
</para>
@dl: a datalist.
@k: the string identifying the data element.
<!-- ##### FUNCTION g_datalist_foreach ##### -->
<para>
Calls the given function for each data element of the datalist.
The function is called with each data element's #GQuark id and data,
together with the given @user_data parameter.
Note that this function is NOT thread-safe. So unless @datalist
can be protected from any modifications during invocation of this
function, it should not be called.
</para>
@datalist: a datalist.
@func: the function to call for each data element.
@user_data: user data to pass to the function.
<!-- ##### FUNCTION g_datalist_clear ##### -->
<para>
Frees all the data elements of the datalist.
The data elements' destroy functions are called if they have been set.
</para>
@datalist: a datalist.
<!-- ##### FUNCTION g_datalist_set_flags ##### -->
<para>
</para>
@datalist:
@flags:
<!-- ##### FUNCTION g_datalist_unset_flags ##### -->
<para>
</para>
@datalist:
@flags:
<!-- ##### FUNCTION g_datalist_get_flags ##### -->
<para>
</para>
@datalist:
@Returns:
<!-- ##### MACRO G_DATALIST_FLAGS_MASK ##### -->
<para>
</para>

212
docs/reference/glib/tmpl/datasets.sgml
View File

@ -1,212 +0,0 @@
<!-- ##### SECTION Title ##### -->
Datasets
<!-- ##### SECTION Short_Description ##### -->
associate groups of data elements with particular memory locations
<!-- ##### SECTION Long_Description ##### -->
<para>
Datasets associate groups of data elements with particular memory locations.
These are useful if you need to associate data with a structure returned
from an external library. Since you cannot modify the structure, you use
its location in memory as the key into a dataset, where you can associate
any number of data elements with it.
</para>
<para>
There are two forms of most of the dataset functions.
The first form uses strings to identify the data elements associated with
a location. The second form uses #GQuark identifiers, which are created
with a call to g_quark_from_string() or g_quark_from_static_string().
The second form is quicker, since it does not require looking up the string
in the hash table of #GQuark identifiers.
</para>
<para>
There is no function to create a dataset. It is automatically created as
soon as you add elements to it.
</para>
<para>
To add data elements to a dataset use g_dataset_id_set_data(),
g_dataset_id_set_data_full(), g_dataset_set_data()
and g_dataset_set_data_full().
</para>
<para>
To get data elements from a dataset use g_dataset_id_get_data() and
g_dataset_get_data().
</para>
<para>
To iterate over all data elements in a dataset use g_dataset_foreach() (not thread-safe).
</para>
<para>
To remove data elements from a dataset use g_dataset_id_remove_data() and
g_dataset_remove_data().
</para>
<para>
To destroy a dataset, use g_dataset_destroy().
</para>
<!-- ##### SECTION See_Also ##### -->
<para>
</para>
<!-- ##### SECTION Stability_Level ##### -->
<!-- ##### MACRO g_dataset_id_set_data ##### -->
<para>
Sets the data element associated with the given #GQuark id.
Any previous data with the same key is removed, and its destroy function
is called.
</para>
@l: the location identifying the dataset.
@k: the #GQuark id to identify the data element.
@d: the data element.
<!-- ##### FUNCTION g_dataset_id_set_data_full ##### -->
<para>
Sets the data element associated with the given #GQuark id, and also the
function to call when the data element is destroyed.
Any previous data with the same key is removed, and its
destroy function is called.
</para>
@dataset_location: the location identifying the dataset.
@key_id: the #GQuark id to identify the data element.
@data: the data element.
@destroy_func: the function to call when the data element is removed. This
function will be called with the data element and can be used to free any
memory allocated for it.
<!-- ##### USER_FUNCTION GDestroyNotify ##### -->
<para>
Specifies the type of function which is called when a data element is
destroyed. It is passed the pointer to the data element and should free
any memory and resources allocated for it.
</para>
@data: the data element.
<!-- ##### FUNCTION g_dataset_id_get_data ##### -->
<para>
Gets the data element corresponding to a #GQuark.
</para>
@dataset_location: the location identifying the dataset.
@key_id: the #GQuark id to identify the data element.
@Returns: the data element corresponding to the #GQuark, or %NULL if it is
not found.
<!-- ##### MACRO g_dataset_id_remove_data ##### -->
<para>
Removes a data element from a dataset.
The data element's destroy function is called if it has been set.
</para>
@l: the location identifying the dataset.
@k: the #GQuark id identifying the data element.
<!-- ##### FUNCTION g_dataset_id_remove_no_notify ##### -->
<para>
Removes an element, without calling its destroy notification function.
</para>
@dataset_location: the location identifying the dataset.
@key_id: the #GQuark ID identifying the data element.
@Returns: the data previously stored at @key_id, or %NULL if none.
<!-- ##### MACRO g_dataset_set_data ##### -->
<para>
Sets the data corresponding to the given string identifier.
</para>
@l: the location identifying the dataset.
@k: the string to identify the data element.
@d: the data element.
<!-- ##### MACRO g_dataset_set_data_full ##### -->
<para>
Sets the data corresponding to the given string identifier, and the function
to call when the data element is destroyed.
</para>
@l: the location identifying the dataset.
@k: the string to identify the data element.
@d: the data element.
@f: the function to call when the data element is removed. This
function will be called with the data element and can be used to free any
memory allocated for it.
<!-- ##### MACRO g_dataset_get_data ##### -->
<para>
Gets the data element corresponding to a string.
</para>
@l: the location identifying the dataset.
@k: the string identifying the data element.
@Returns: the data element corresponding to the string, or %NULL if it is not
found.
<!-- ##### MACRO g_dataset_remove_data ##### -->
<para>
Removes a data element corresponding to a string.
Its destroy function is called if it has been set.
</para>
@l: the location identifying the dataset.
@k: the string identifying the data element.
<!-- ##### MACRO g_dataset_remove_no_notify ##### -->
<para>
Removes an element, without calling its destroy notifier.
</para>
@l: the location identifying the dataset.
@k: the string identifying the data element.
<!-- ##### FUNCTION g_dataset_foreach ##### -->
<para>
Calls the given function for each data element which is associated with the
given location.
Note that this function is NOT thread-safe. So unless @datalist
can be protected from any modifications during invocation of this
function, it should not be called.
</para>
@dataset_location: the location identifying the dataset.
@func: the function to call for each data element.
@user_data: user data to pass to the function.
<!-- ##### USER_FUNCTION GDataForeachFunc ##### -->
<para>
Specifies the type of function passed to g_dataset_foreach().
It is called with each #GQuark id and associated data element,
together with the @user_data parameter supplied to g_dataset_foreach().
</para>
@key_id: the #GQuark id to identifying the data element.
@data: the data element.
@user_data: user data passed to g_dataset_foreach().
<!-- ##### FUNCTION g_dataset_destroy ##### -->
<para>
Destroys the dataset, freeing all memory allocated, and calling any
destroy functions set for data elements.
</para>
@dataset_location: the location identifying the dataset.

124
docs/reference/glib/tmpl/quarks.sgml
View File

@ -1,124 +0,0 @@
<!-- ##### SECTION Title ##### -->
Quarks
<!-- ##### SECTION Short_Description ##### -->
a 2-way association between a string and a unique integer identifier
<!-- ##### SECTION Long_Description ##### -->
<para>
Quarks are associations between strings and integer identifiers.
Given either the string or the #GQuark identifier it is possible to
retrieve the other.
</para>
<para>
Quarks are used for both
<link linkend="glib-datasets">Datasets</link> and
<link linkend="glib-keyed-data-lists">Keyed Data Lists</link>.
</para>
<para>
To create a new quark from a string, use g_quark_from_string() or
g_quark_from_static_string().
</para>
<para>
To find the string corresponding to a given #GQuark, use g_quark_to_string().
</para>
<para>
To find the #GQuark corresponding to a given string, use g_quark_try_string().
</para>
<para>
Another use for the string pool maintained for the quark functions is string
interning, using g_intern_string() or g_intern_static_string(). An interned string
is a canonical representation for a string. One important advantage of interned strings
is that they can be compared for equality by a simple pointer comparision, rather than
using strcmp().
</para>
<!-- ##### SECTION See_Also ##### -->
<para>
</para>
<!-- ##### SECTION Stability_Level ##### -->
<!-- ##### TYPEDEF GQuark ##### -->
<para>
A GQuark is a non-zero integer which uniquely identifies a particular string.
A GQuark value of zero is associated to %NULL.
</para>
<!-- ##### FUNCTION g_quark_from_string ##### -->
<para>
Gets the #GQuark identifying the given string.
If the string does not currently have an associated #GQuark, a new
#GQuark is created, using a copy of the string.
</para>
@string: a string.
@Returns: the #GQuark identifying the string, or 0 if @string is %NULL.
<!-- ##### FUNCTION g_quark_from_static_string ##### -->
<para>
Gets the #GQuark identifying the given (static) string.
If the string does not currently have an associated #GQuark, a new
#GQuark is created, linked to the given string.
</para>
<para>
Note that this function is identical to g_quark_from_string() except
that if a new #GQuark is created the string itself is used rather than
a copy. This saves memory, but can only be used if the string will
<emphasis>always</emphasis> exist. It can be used with statically
allocated strings in the main program, but not with statically
allocated memory in dynamically loaded modules, if you expect to
ever unload the module again (e.g. do not use this function in
GTK+ theme engines).
</para>
@string: a string.
@Returns: the #GQuark identifying the string, or 0 if @string is %NULL.
<!-- ##### FUNCTION g_quark_to_string ##### -->
<para>
Gets the string associated with the given #GQuark.
</para>
@quark: a #GQuark.
@Returns: the string associated with the #GQuark.
<!-- ##### FUNCTION g_quark_try_string ##### -->
<para>
Gets the #GQuark associated with the given string, or 0 if string is
%NULL or it has no associated #GQuark.
</para>
<para>
If you want the GQuark to be created if it doesn't already exist, use
g_quark_from_string() or g_quark_from_static_string().
</para>
@string: a string.
@Returns: the #GQuark associated with the string, or 0 if @string is
%NULL or there is no #GQuark associated with it.
<!-- ##### FUNCTION g_intern_string ##### -->
<para>
</para>
@string:
@Returns:
<!-- ##### FUNCTION g_intern_static_string ##### -->
<para>
</para>
@string:
@Returns:

428
glib/gdataset.c
View File

@ -38,6 +38,95 @@
#include "gdatasetprivate.h"
#include "galias.h"
/**
* SECTION: datasets
* @title: Datasets
* @short_description: associate groups of data elements with
* particular memory locations
*
* Datasets associate groups of data elements with particular memory
* locations. These are useful if you need to associate data with a
* structure returned from an external library. Since you cannot modify
* the structure, you use its location in memory as the key into a
* dataset, where you can associate any number of data elements with it.
*
* There are two forms of most of the dataset functions. The first form
* uses strings to identify the data elements associated with a
* location. The second form uses #GQuark identifiers, which are
* created with a call to g_quark_from_string() or
* g_quark_from_static_string(). The second form is quicker, since it
* does not require looking up the string in the hash table of #GQuark
* identifiers.
*
* There is no function to create a dataset. It is automatically
* created as soon as you add elements to it.
*
* To add data elements to a dataset use g_dataset_id_set_data(),
* g_dataset_id_set_data_full(), g_dataset_set_data() and
* g_dataset_set_data_full().
*
* To get data elements from a dataset use g_dataset_id_get_data() and
* g_dataset_get_data().
*
* To iterate over all data elements in a dataset use
* g_dataset_foreach() (not thread-safe).
*
* To remove data elements from a dataset use
* g_dataset_id_remove_data() and g_dataset_remove_data().
*
* To destroy a dataset, use g_dataset_destroy().
**/
/**
* SECTION: datalist
* @title: Keyed Data Lists
* @short_description: lists of data elements which are accessible by a
* string or GQuark identifier
*
* Keyed data lists provide lists of arbitrary data elements which can
* be accessed either with a string or with a #GQuark corresponding to
* the string.
*
* The #GQuark methods are quicker, since the strings have to be
* converted to #GQuarks anyway.
*
* Data lists are used for associating arbitrary data with #GObjects,
* using g_object_set_data() and related functions.
*
* To create a datalist, use g_datalist_init().
*
* To add data elements to a datalist use g_datalist_id_set_data(),
* g_datalist_id_set_data_full(), g_datalist_set_data() and
* g_datalist_set_data_full().
*
* To get data elements from a datalist use g_datalist_id_get_data()
* and g_datalist_get_data().
*
* To iterate over all data elements in a datalist use
* g_datalist_foreach() (not thread-safe).
*
* To remove data elements from a datalist use
* g_datalist_id_remove_data() and g_datalist_remove_data().
*
* To remove all data elements from a datalist, use g_datalist_clear().
**/
/**
* GData:
*
* The #GData struct is an opaque data structure to represent a <link
* linkend="glib-Keyed-Data-Lists">Keyed Data List</link>. It should
* only be accessed via the following functions.
**/
/**
* GDestroyNotify:
* @data: the data element.
*
* Specifies the type of function which is called when a data element
* is destroyed. It is passed the pointer to the data element and
* should free any memory and resources allocated for it.
**/
/* --- defines --- */
#define G_QUARK_BLOCK_SIZE (512)
@ -125,6 +214,13 @@ g_datalist_clear_i (GData **datalist)
}
}
/**
* g_datalist_clear:
* @datalist: a datalist.
*
* Frees all the data elements of the datalist. The data elements'
* destroy functions are called if they have been set.
**/
void
g_datalist_clear (GData **datalist)
{
@ -178,6 +274,13 @@ g_dataset_destroy_internal (GDataset *dataset)
}
}
/**
* g_dataset_destroy:
* @dataset_location: the location identifying the dataset.
*
* Destroys the dataset, freeing all memory allocated, and calling any
* destroy functions set for data elements.
**/
void
g_dataset_destroy (gconstpointer dataset_location)
{
@ -300,6 +403,67 @@ g_data_set_internal (GData **datalist,
return NULL;
}
/**
* g_dataset_id_set_data_full:
* @dataset_location: the location identifying the dataset.
* @key_id: the #GQuark id to identify the data element.
* @data: the data element.
* @destroy_func: the function to call when the data element is
* removed. This function will be called with the data
* element and can be used to free any memory allocated
* for it.
*
* Sets the data element associated with the given #GQuark id, and also
* the function to call when the data element is destroyed. Any
* previous data with the same key is removed, and its destroy function
* is called.
**/
/**
* g_dataset_set_data_full:
* @l: the location identifying the dataset.
* @k: the string to identify the data element.
* @d: the data element.
* @f: the function to call when the data element is removed. This
* function will be called with the data element and can be used to
* free any memory allocated for it.
*
* Sets the data corresponding to the given string identifier, and the
* function to call when the data element is destroyed.
**/
/**
* g_dataset_id_set_data:
* @l: the location identifying the dataset.
* @k: the #GQuark id to identify the data element.
* @d: the data element.
*
* Sets the data element associated with the given #GQuark id. Any
* previous data with the same key is removed, and its destroy function
* is called.
**/
/**
* g_dataset_set_data:
* @l: the location identifying the dataset.
* @k: the string to identify the data element.
* @d: the data element.
*
* Sets the data corresponding to the given string identifier.
**/
/**
* g_dataset_id_remove_data:
* @l: the location identifying the dataset.
* @k: the #GQuark id identifying the data element.
*
* Removes a data element from a dataset. The data element's destroy
* function is called if it has been set.
**/
/**
* g_dataset_remove_data:
* @l: the location identifying the dataset.
* @k: the string identifying the data element.
*
* Removes a data element corresponding to a string. Its destroy
* function is called if it has been set.
**/
void
g_dataset_id_set_data_full (gconstpointer dataset_location,
GQuark key_id,
@ -338,6 +502,72 @@ g_dataset_id_set_data_full (gconstpointer dataset_location,
G_UNLOCK (g_dataset_global);
}
/**
* g_datalist_id_set_data_full:
* @datalist: a datalist.
* @key_id: the #GQuark to identify the data element.
* @data: the data element or %NULL to remove any previous element
* corresponding to @key_id.
* @destroy_func: the function to call when the data element is
* removed. This function will be called with the data
* element and can be used to free any memory allocated
* for it. If @data is %NULL, then @destroy_func must
* also be %NULL.
*
* Sets the data corresponding to the given #GQuark id, and the
* function to be called when the element is removed from the datalist.
* Any previous data with the same key is removed, and its destroy
* function is called.
**/
/**
* g_datalist_set_data_full:
* @dl: a datalist.
* @k: the string to identify the data element.
* @d: the data element, or %NULL to remove any previous element
* corresponding to @k.
* @f: the function to call when the data element is removed. This
* function will be called with the data element and can be used to
* free any memory allocated for it. If @d is %NULL, then @f must
* also be %NULL.
*
* Sets the data element corresponding to the given string identifier,
* and the function to be called when the data element is removed.
**/
/**
* g_datalist_id_set_data:
* @dl: a datalist.
* @q: the #GQuark to identify the data element.
* @d: the data element, or %NULL to remove any previous element
* corresponding to @q.
*
* Sets the data corresponding to the given #GQuark id. Any previous
* data with the same key is removed, and its destroy function is
* called.
**/
/**
* g_datalist_set_data:
* @dl: a datalist.
* @k: the string to identify the data element.
* @d: the data element, or %NULL to remove any previous element
* corresponding to @k.
*
* Sets the data element corresponding to the given string identifier.
**/
/**
* g_datalist_id_remove_data:
* @dl: a datalist.
* @q: the #GQuark identifying the data element.
*
* Removes an element, using its #GQuark identifier.
**/
/**
* g_datalist_remove_data:
* @dl: a datalist.
* @k: the string identifying the data element.
*
* Removes an element using its string identifier. The data element's
* destroy function is called if it has been set.
**/
void
g_datalist_id_set_data_full (GData **datalist,
GQuark key_id,
@ -363,6 +593,22 @@ g_datalist_id_set_data_full (GData **datalist,
G_UNLOCK (g_dataset_global);
}
/**
* g_dataset_id_remove_no_notify:
* @dataset_location: the location identifying the dataset.
* @key_id: the #GQuark ID identifying the data element.
* @Returns: the data previously stored at @key_id, or %NULL if none.
*
* Removes an element, without calling its destroy notification
* function.
**/
/**
* g_dataset_remove_no_notify:
* @l: the location identifying the dataset.
* @k: the string identifying the data element.
*
* Removes an element, without calling its destroy notifier.
**/
gpointer
g_dataset_id_remove_no_notify (gconstpointer dataset_location,
GQuark key_id)
@ -385,6 +631,22 @@ g_dataset_id_remove_no_notify (gconstpointer dataset_location,
return ret_data;
}
/**
* g_datalist_id_remove_no_notify:
* @datalist: a datalist.
* @key_id: the #GQuark identifying a data element.
* @Returns: the data previously stored at @key_id, or %NULL if none.
*
* Removes an element, without calling its destroy notification
* function.
**/
/**
* g_datalist_remove_no_notify:
* @dl: a datalist.
* @k: the string identifying the data element.
*
* Removes an element, without calling its destroy notifier.
**/
gpointer
g_datalist_id_remove_no_notify (GData **datalist,
GQuark key_id)
@ -401,6 +663,24 @@ g_datalist_id_remove_no_notify (GData **datalist,
return ret_data;
}
/**
* g_dataset_id_get_data:
* @dataset_location: the location identifying the dataset.
* @key_id: the #GQuark id to identify the data element.
* @Returns: the data element corresponding to the #GQuark, or %NULL if
* it is not found.
*
* Gets the data element corresponding to a #GQuark.
**/
/**
* g_dataset_get_data:
* @l: the location identifying the dataset.
* @k: the string identifying the data element.
* @Returns: the data element corresponding to the string, or %NULL if
* it is not found.
*
* Gets the data element corresponding to a string.
**/
gpointer
g_dataset_id_get_data (gconstpointer dataset_location,
GQuark key_id)
@ -430,6 +710,24 @@ g_dataset_id_get_data (gconstpointer dataset_location,
return NULL;
}
/**
* g_datalist_id_get_data:
* @datalist: a datalist.
* @key_id: the #GQuark identifying a data element.
* @Returns: the data element, or %NULL if it is not found.
*
* Retrieves the data element corresponding to @key_id.
**/
/**
* g_datalist_get_data:
* @dl: a datalist.
* @k: the string identifying a data element.
* @Returns: the data element, or %NULL if it is not found.
*
* Gets a data element, using its string identifer. This is slower than
* g_datalist_id_get_data() because the string is first converted to a
* #GQuark.
**/
gpointer
g_datalist_id_get_data (GData **datalist,
GQuark key_id)
@ -451,6 +749,28 @@ g_datalist_id_get_data (GData **datalist,
return data;
}
/**
* GDataForeachFunc:
* @key_id: the #GQuark id to identifying the data element.
* @data: the data element.
* @user_data: user data passed to g_dataset_foreach().
*
* Specifies the type of function passed to g_dataset_foreach(). It is
* called with each #GQuark id and associated data element, together
* with the @user_data parameter supplied to g_dataset_foreach().
**/
/**
* g_dataset_foreach:
* @dataset_location: the location identifying the dataset.
* @func: the function to call for each data element.
* @user_data: user data to pass to the function.
*
* Calls the given function for each data element which is associated
* with the given location. Note that this function is NOT thread-safe.
* So unless @datalist can be protected from any modifications during
* invocation of this function, it should not be called.
**/
void
g_dataset_foreach (gconstpointer dataset_location,
GDataForeachFunc func,
@ -483,6 +803,19 @@ g_dataset_foreach (gconstpointer dataset_location,
}
}
/**
* g_datalist_foreach:
* @datalist: a datalist.
* @func: the function to call for each data element.
* @user_data: user data to pass to the function.
*
* Calls the given function for each data element of the datalist. The
* function is called with each data element's #GQuark id and data,
* together with the given @user_data parameter. Note that this
* function is NOT thread-safe. So unless @datalist can be protected
* from any modifications during invocation of this function, it should
* not be called.
**/
void
g_datalist_foreach (GData **datalist,
GDataForeachFunc func,
@ -500,6 +833,13 @@ g_datalist_foreach (GData **datalist,
}
}
/**
* g_datalist_init:
* @datalist: a pointer to a pointer to a datalist.
*
* Resets the datalist to %NULL. It does not free any memory or call
* any destroy functions.
**/
void
g_datalist_init (GData **datalist)
{
@ -600,6 +940,56 @@ g_data_initialize (void)
g_dataset_cached = NULL;
}
/**
* SECTION: quarks
* @title: Quarks
* @short_description: a 2-way association between a string and a
* unique integer identifier
*
* Quarks are associations between strings and integer identifiers.
* Given either the string or the #GQuark identifier it is possible to
* retrieve the other.
*
* Quarks are used for both <link
* linkend="glib-datasets">Datasets</link> and <link
* linkend="glib-keyed-data-lists">Keyed Data Lists</link>.
*
* To create a new quark from a string, use g_quark_from_string() or
* g_quark_from_static_string().
*
* To find the string corresponding to a given #GQuark, use
* g_quark_to_string().
*
* To find the #GQuark corresponding to a given string, use
* g_quark_try_string().
*
* Another use for the string pool maintained for the quark functions
* is string interning, using g_intern_string() or
* g_intern_static_string(). An interned string is a canonical
* representation for a string. One important advantage of interned
* strings is that they can be compared for equality by a simple
* pointer comparision, rather than using strcmp().
**/
/**
* GQuark:
*
* A GQuark is a non-zero integer which uniquely identifies a
* particular string. A GQuark value of zero is associated to %NULL.
**/
/**
* g_quark_try_string:
* @string: a string.
* @Returns: the #GQuark associated with the string, or 0 if @string is
* %NULL or there is no #GQuark associated with it.
*
* Gets the #GQuark associated with the given string, or 0 if string is
* %NULL or it has no associated #GQuark.
*
* If you want the GQuark to be created if it doesn't already exist,
* use g_quark_from_string() or g_quark_from_static_string().
**/
GQuark
g_quark_try_string (const gchar *string)
{
@ -630,6 +1020,16 @@ g_quark_from_string_internal (const gchar *string,
return quark;
}
/**
* g_quark_from_string:
* @string: a string.
* @Returns: the #GQuark identifying the string, or 0 if @string is
* %NULL.
*
* Gets the #GQuark identifying the given string. If the string does
* not currently have an associated #GQuark, a new #GQuark is created,
* using a copy of the string.
**/
GQuark
g_quark_from_string (const gchar *string)
{
@ -645,6 +1045,25 @@ g_quark_from_string (const gchar *string)
return quark;
}
/**
* g_quark_from_static_string:
* @string: a string.
* @Returns: the #GQuark identifying the string, or 0 if @string is
* %NULL.
*
* Gets the #GQuark identifying the given (static) string. If the
* string does not currently have an associated #GQuark, a new #GQuark
* is created, linked to the given string.
*
* Note that this function is identical to g_quark_from_string() except
* that if a new #GQuark is created the string itself is used rather
* than a copy. This saves memory, but can only be used if the string
* will <emphasis>always</emphasis> exist. It can be used with
* statically allocated strings in the main program, but not with
* statically allocated memory in dynamically loaded modules, if you
* expect to ever unload the module again (e.g. do not use this
* function in GTK+ theme engines).
**/
GQuark
g_quark_from_static_string (const gchar *string)
{
@ -660,6 +1079,13 @@ g_quark_from_static_string (const gchar *string)
return quark;
}
/**
* g_quark_to_string:
* @quark: a #GQuark.
* @Returns: the string associated with the #GQuark.
*
* Gets the string associated with the given #GQuark.
**/
G_CONST_RETURN gchar*
g_quark_to_string (GQuark quark)
{
@ -753,7 +1179,5 @@ g_intern_static_string (const gchar *string)
return result;
}
#define __G_DATASET_C__
#include "galiasdef.c"