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This rather large commit changes the way modules are loaded.

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As partly documented in loader.c and include/asterisk/module.h,
modules are now expected to return all of their methods and flags
into a structure 'mod_data', and are normally loaded with RTLD_NOW
| RTLD_LOCAL, so symbols are resolved immediately and conflicts
should be less likely.  Only in a small number of cases (res_*,
typically) modules are loaded RTLD_GLOBAL, so they can export
symbols.
 
The core of the change is only the two files loader.c and
include/asterisk/module.h, all the rest is simply adaptation of the
existing modules to the new API, a rather mechanical (but believe
me, time and finger-consuming!) process whose detail you can figure
out by svn diff'ing any single module.

Expect some minor compilation issue after this change, please
report it on mantis http://bugs.digium.com/view.php?id=6968
so we collect all the feedback in one place.

I am just sorry that this change missed SVN version number 20000!



git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@20003 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Luigi Rizzo
2006-04-14 14:08:19 +00:00
parent 33a3a7375a
commit e43bc6634d
162 changed files with 1273 additions and 2386 deletions
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24
include/asterisk.h
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@@ -73,17 +73,33 @@ int dnsmgr_init(void);
void dnsmgr_start_refresh(void);
int dnsmgr_reload(void);
/*!
* \brief Reload asterisk modules.
* \param name the name of the module to reload
*
* This function reloads the specified module, or if no modules are specified,
* it will reload all loaded modules.
*
* \note Modules are reloaded using their reload() functions, not unloading
* them and loading them again.
*
* \return Zero if the specified module was not found, 1 if the module was
* found but cannot be reloaded, -1 if a reload operation is already in
* progress, and 2 if the specfied module was found and reloaded.
*/
int ast_module_reload(const char *name);
/*!
* \brief Register a function to be executed before Asterisk exits.
* \param func The callback function to use.
*
*
* \return Zero on success, -1 on error.
*/
int ast_register_atexit(void (*func)(void));
/*!
/*!
* \brief Unregister a function registered with ast_register_atexit().
* \param func The callback function to unregister.
* \param func The callback function to unregister.
*/
void ast_unregister_atexit(void (*func)(void));