CPG_ZCB_ALLOC(2009-04-15)			     CPG_ZCB_ALLOC(2009-04-15)

NAME
       cpg_zcb_alloc - Allocates a zero copy buffer #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) funtion.  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 operatoin.

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(8),	 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_local_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 inturrupted by a signal

       CS_ERR_NOT_SUPPORTED The requested protocol/functuality not supported

       CS_ERR_MESSAGE_ERROR Incorrect auth message received

       CS_ERR_NO_MEMORY Not enough memory to completed the requested task

Corosync Cluster Engine ProgramcorosyncnMan Page     CPG_ZCB_ALLOC(2009-04-15)

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