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<title>xmlmodule: dynamic module loading</title>
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<link rel="start" href="index.html" title="libxml2 Reference Manual"/>
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libxml2 Reference Manual
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xmlmodule
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xmlmodule - dynamic module loading
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basic API for dynamic module loading, used by libexslt added in 2.6.17
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Author(s): Joel W. Reed
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Synopsis
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typedef struct _xmlModule xmlModule;
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typedef xmlModule * xmlModulePtr;
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typedef enum xmlModuleOption;
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int xmlModuleFree (xmlModulePtr module);
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int xmlModuleSymbol (xmlModulePtr module,
const char * name,
void ** symbol);
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xmlModulePtr xmlModuleOpen (const char * name,
int options);
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int xmlModuleClose (xmlModulePtr module);
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Description
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Details
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The content of this structure is not made public by the API.
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} xmlModule;
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XML_MODULE_LAZY = 1 /* lazy binding */
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XML_MODULE_LOCAL = 2 /* local binding */
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};
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A handle to a dynamically loaded module
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The close operations unload the associated module and free the data associated to the module.
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| <tt>module</tt>: | the module handle | | <tt>Returns</tt>: | 0 in case of success, -1 in case of argument error and -2 if the module could not be closed/unloaded. |
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The free operations free the data associated to the module but does not unload the associated shared library which may still be in use.
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| <tt>module</tt>: | the module handle | | <tt>Returns</tt>: | 0 in case of success, -1 in case of argument error |
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Opens a module/shared library given its name or path NOTE: that due to portability issues, behaviour can only be guaranteed with @name using ASCII. We canot guarantee that an UTF-8 string would work, which is why name is a const char * and not a const xmlChar * . TODO: options are not yet implemented.
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| <tt>name</tt>: | the module name | | <tt>options</tt>: | a set of xmlModuleOption | | <tt>Returns</tt>: | a handle for the module or NULL in case of error |
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Lookup for a symbol address in the given module NOTE: that due to portability issues, behaviour can only be guaranteed with @name using ASCII. We canot guarantee that an UTF-8 string would work, which is why name is a const char * and not a const xmlChar * .
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| <tt>module</tt>: | the module | | <tt>name</tt>: | the name of the symbol | | <tt>symbol</tt>: | the resulting symbol address | | <tt>Returns</tt>: | 0 if the symbol was found, or -1 in case of error |
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