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finish module structure description

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git-svn-id: https://svn.php.net/repository/phpdoc/en/trunk@249591 c90b9560-bf6c-de11-be94-00142212c4b1
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Gwynne Raskind 2008-01-01 02:45:32 +00:00
parent eaed26bce1
commit 95d2abff8f
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240
internals2/structure/modstruct.xml
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@ -1,5 +1,5 @@
<?xml version="1.0" encoding="ISO-8859-1" ?>
<!-- $Revision: 1.3 $ -->
<!-- $Revision: 1.4 $ -->
<sect1 xml:id="internals2.structure.modstruct" xmlns="http://docbook.org/ns/docbook" xmlns:xlink="http://www.w3.org/1999/xlink">
<title>The zend_module structure</title>
<para>
@ -91,13 +91,247 @@ struct _zend_module_entry {
#define STANDARD_MODULE_HEADER_EX sizeof(zend_module_entry), ZEND_MODULE_API_NO, ZEND_DEBUG, USING_ZTS
#define STANDARD_MODULE_HEADER \
STANDARD_MODULE_HEADER_EX, NULL, NULL
#define ZE2_STANDARD_MODULE_HEADER \
STANDARD_MODULE_HEADER_EX, ini_entries, NULL
#define NO_VERSION_YET NULL
#define STANDARD_MODULE_PROPERTIES_EX 0, 0, NULL, 0
#define STANDARD_MODULE_PROPERTIES \
NO_MODULE_GLOBALS, NULL, STANDARD_MODULE_PROPERTIES_EX
#define NO_MODULE_GLOBALS 0, NULL, NULL, NULL
]]>
</programlisting>
</example>
<variablelist>
<varlistentry>
<term><literal>size</literal></term>
<listitem>
<para>
The size in bytes of the structure. This will always be to
<literal>sizeof(zend_module_entry)</literal>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>zend_api</literal></term>
<listitem>
<para>
The version of the Zend API this module was compiled against. This is
always the constant <constant>ZEND_MODULE_API_NO</constant>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>zend_debug</literal></term>
<term><literal>zts</literal></term>
<listitem>
<para>
Flags indicating whether the module was compiled with debugging turned on
or ZTS (TSRM) enabled. These are always the constants
<constant>ZEND_DEBUG</constant> and <constant>USING_ZTS</constant>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>ini_entry</literal></term>
<listitem>
<para>
This pointer is used by Zend internally to keep a non-local reference to
any INI entries declared for the module. It is managed by Zend and will
always be given the initial value &null;.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>deps</literal></term>
<listitem>
<para>
A pointer to a list of dependencies for the module.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>name</literal></term>
<listitem>
<para>
The name of the module. This is the short name, such as
&quot;spl&quot; or &quot;standard&quot;.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>functions</literal></term>
<listitem>
<para>
A pointer to the module's function table, which Zend uses to expose
functions in the module to user space.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>module_startup_func</literal></term>
<term><literal>module_shutdown_func</literal></term>
<term><literal>request_startup_func</literal></term>
<term><literal>request_shutdown_func</literal></term>
<listitem>
<para>
These are callback functions that Zend will call at particular times
during PHP's processing. Specifically, at first initialization, at final
shutdown, at the start of each particular request, and at the end of each
request.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>info_func</literal></term>
<listitem>
<para>
This is another callback function, which Zend will call when a script
invokes <function>phpinfo</function>.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>version</literal></term>
<listitem>
<para>
A string giving the version of the module, as specified by the module
developer. It is <emphasis>strongly</emphasis> recommended that the
version number be either in the format expected by
<function>version_compare</function>, or a CVS or SVN revision number
(i.e. &quot;$Rev$&quot;).
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>globals_size</literal></term>
<listitem>
<para>
The size of the globals structure for this module, if any.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>globals_id_ptr</literal></term>
<term><literal>globals_ptr</literal></term>
<listitem>
<para>
Only one of these two fields will exist, depending upon whether the
<constant>USING_ZTS</constant> constant is &true;. The former is an index
into TSRM&apos;s allocation table for the module&apos;s globals, and the
latter is a pointer directly to the globals.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>globals_ctor</literal></term>
<term><literal>globals_dtor</literal></term>
<listitem>
<para>
These functions are called by Zend to set up and destroy a module&apos;s
globals.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>post_deactivate_func</literal></term>
<listitem>
<para>
This function is called by Zend after request shutdown. It is rarely used.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><literal>module_started</literal></term>
<term><literal>type</literal></term>
<term><literal>handle</literal></term>
<term><literal>module_number</literal></term>
<listitem>
<para>
These fields are used for Zend's internal tracking information and must be
considered reserved.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><constant>STANDARD_MODULE_HEADER_EX</constant></term>
<listitem>
<para>
This macro is used by module developers to start the
<varname>zend_module</varname> structure when the module will specify INI
entries, dependencies, or both.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><constant>STANDARD_MODULE_HEADER</constant></term>
<listitem>
<para>
This macro is used to start the <varname>zend_module</varname>
structure when the developer will not specify INI entries or dependencies.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><constant>NO_VERSION_YET</constant></term>
<listitem>
<para>
This macro should be used by module developers to specify that the module
has no version. It is not recommended that this be used.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><constant>STANDARD_MODULE_PROPERTIES_EX</constant></term>
<listitem>
<para>
This macro is used by module developers to end the
<varname>zend_module</varname> when the module will make use of
automatic globals, a post-deactivate callback, or both.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><constant>STANDARD_MODULE_PROPERTIES</constant></term>
<listitem>
<para>
This macro is used by module developers to end the
<varname>zend_module</varname> when the module will not make use of
automatic globals or a post-deactivate callback.
</para>
</listitem>
</varlistentry>
<varlistentry>
<term><constant>NO_MODULE_GLOBALS</constant></term>
<listitem>
<para>
This macro is used by module developers to specify values that tell Zend
that the module has no global variables.
</para>
</listitem>
</varlistentry>
</variablelist>
</sect1>