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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 CPG_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)

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