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CPG_ZCB_ALLOC(3)  Corosync Cluster Engine Programmer's Manual CPG_ZCB_ALLOC(3)

NAME
       cpg_zcb_alloc - Allocates a zero	copy buffer

SYNOPSIS
       #include	<corosync/cpg.h>

       int cpg_zcb_alloc(cpg_handle_t handle, size_t size, void	**buffer);

DESCRIPTION
       The  cpg_zcb_alloc  function  will  allocate a zero copy	buffer for use
       with the	cpg_zcb_mcast_joined(3)	function.  This	buffer should  not  be
       used in another thread while a cpg_zcb_mcast_joined operation is	taking
       place on	the buffer.  The buffer	 is  allocated	via  operating	system
       mechanisms to avoid copying in the IPC layer.

       The  argument  handle  describes	the handle on which the	buffer will be
       allocated.

       The argument size requests a buffer of size be allocated.

       The buffer argument is set to the buffer	address	that is	 allocated  by
       this operation.

RETURN VALUE
       This  call returns the CS_OK value if successful, otherwise an error is
       returned.

ERRORS
       The errors are undocumented.

SEE ALSO
       cpg_overview(3),	 cpg_initialize(3),  cpg_finalize(3),	cpg_fd_get(3),
       cpg_dispatch(3),	   cpg_join(3),	  cpg_leave(3),	  cpg_mcast_joined(3),
       cpg_membership_get(3)	     cpg_zcb_alloc(3)	       cpg_zcb_free(3)
       cpg_zcb_mcast_joined(3)	cpg_context_get(3)  cpg_context_set(3) cpg_lo-
       cal_get(3)

       CS_ERR_TRY_AGAIN	Resource temporarily unavailable

       CS_ERR_INVALID_PARAM Invalid argument

       CS_ERR_ACCESS Permission	denied

       CS_ERR_LIBRARY The connection failed

       CS_ERR_INTERRUPT	System call interrupted	by a signal

       CS_ERR_NOT_SUPPORTED The	requested protocol/functionality not supported

       CS_ERR_MESSAGE_ERROR Incorrect auth message received

       CS_ERR_NO_MEMORY	Not enough memory to complete the requested task

corosync Man Page		  2009-04-15		      CPG_ZCB_ALLOC(3)

NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | ERRORS | SEE ALSO

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