Content-type: text/html Man page of picld_plugin_register

picld_plugin_register

Section: PICL Plug-In Library Functions (3PICLTREE)
Updated: 19 Sep 2001
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NAME

picld_plugin_register - register plug-in with the daemon  

SYNOPSIS

cc [ flag... ] file... -lpicltree [ library... ]
#include <picltree.h>

int picld_plugin_register(picld_plugin_reg_t *regp);  

DESCRIPTION

The picld_plugin_register() function is the function used by a plug-in module to register itself with the PICL daemon upon initialization. The plug-in provides its name and the entry points of the initialization and cleanup routines in the regp argument.

typedef struct {
        int   version;               /* PICLD_PLUGIN_VERSION */
        int   critical;              /* is plug-in critical? */
        char  *name;                 /* name of the plugin module */
        void  (*plugin_init)(void);  /* init/reinit function */
        void  (*plugin_fini)(void);  /* fini/cleanup function */
} picld_plugin_reg_t;

The plug-in module also specifies whether it is a critical module for the proper system operation. The critical field in the registration information is set to PICLD_PLUGIN_NON_CRITICAL by plug-in modules that are not critical to system operation, and is set to PICLD_PLUGIN_CRITICAL by plug-in modules that are critical to the system operation. An environment control plug-in module is an example for a PICLD_PLUGIN_CRITICAL type of plug-in module.

The PICL daemon saves the information passed during registration in regp in the order in which the plug-ins registered.

Upon initialization, the PICL daemon invokes the plugin_init() routine of each of the registered plug-in modules in the order in which they registered. In their plugin_init() routines, the plug-in modules collect the platform configuration data and add it to the PICL tree using PICLTREE interfaces (3PICLTREE).

On reinitialization, the PICL daemon invokes the plugin_fini() routines of the registered plug-in modules in the reverse order of registration. Then, the plugin_init() entry points are invoked again in the order in which the plug-ins registered.  

RETURN VALUES

Upon successful completion, 0 is returned. On failure, a negative value is returned.  

ERRORS

PICL_NOTSUPPORTED Version not supported

PICL_FAILURE General system failure

 

ATTRIBUTES

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPEATTRIBUTE VALUE
Interface StabilityEvolving
MT-LevelMT-Safe

 

SEE ALSO

libpicltree(3PICLTREE), attributes(5)


 

Index

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUES
ERRORS
ATTRIBUTES
SEE ALSO

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Time: 02:39:12 GMT, October 02, 2010