Host storage API

The Host storage API is a per-host storage. It is a mean to extend the Host structure with arbitrary data. More...

Functions
HostStorageId	HostStorageRegister (const char *name, const unsigned int size, void *(*Alloc)(unsigned int), void(*Free)(void *))
	Register a Host storage. More...
int	HostSetStorageById (Host *h, HostStorageId id, void *ptr)
	Store a pointer in a given Host storage. More...
void *	HostGetStorageById (Host *h, HostStorageId id)
	Get a value from a given Host storage. More...

Detailed Description

The Host storage API is a per-host storage. It is a mean to extend the Host structure with arbitrary data.

You have first to register the storage via HostStorageRegister() during the init of your module. Then you can attach data via HostSetStorageById() and access them via HostGetStorageById().

Function Documentation

HostGetStorageById()

void* HostGetStorageById	(	Host *	h,
		HostStorageId	id
	)

Get a value from a given Host storage.

Parameters

h	a pointer to the Host
id	the id of the storage (return of HostStorageRegister() call)

Definition at line 88 of file host-storage.c.

References Host_::storage, STORAGE_HOST, and StorageGetById().

Referenced by HostBitList(), HostBitsTimedoutCheck(), HostHasHostBits(), TagHashAddTag(), TagHostHasTag(), TagTimeoutCheck(), ThresholdHostHasThreshold(), and ThresholdHostTimeoutCheck().

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HostSetStorageById()

int HostSetStorageById	(	Host *	h,
		HostStorageId	id,
		void *	ptr
	)

Store a pointer in a given Host storage.

Parameters

h	a pointer to the Host
id	the id of the storage (return of HostStorageRegister() call)
ptr	pointer to the data to store

Definition at line 75 of file host-storage.c.

References Host_::storage, STORAGE_HOST, and StorageSetById().

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HostStorageRegister()

HostStorageId HostStorageRegister	(	const char *	name,
		const unsigned int	size,
		void *(*)(unsigned int)	Alloc,
		void(*)(void *)	Free
	)

Register a Host storage.

Parameters

name	the name of the storage
size	integer coding the size of the stored value (sizeof(void *) is best choice here)
Alloc	allocation function for the storage (can be null)
Free	free function for the new storage

Return values

The	ID of the newly register storage that will be used to access data

It has to be called once during the init of the sub system

Definition at line 59 of file host-storage.c.

References HostStorageId_::id, STORAGE_HOST, and StorageRegister().

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