1CPG_ZCB_ALLOC(3)  Corosync Cluster Engine Programmer's Manual CPG_ZCB_ALLOC(3)
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NAME

6       cpg_zcb_alloc - Allocates a zero copy buffer
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SYNOPSIS

9       #include <corosync/cpg.h>
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11       int cpg_zcb_alloc(cpg_handle_t handle, size_t size, void **buffer);
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DESCRIPTION

14       The  cpg_zcb_alloc  function  will  allocate a zero copy buffer for use
15       with the cpg_zcb_mcast_joined(3) function.  This buffer should  not  be
16       used in another thread while a cpg_zcb_mcast_joined operation is taking
17       place on the buffer.  The buffer  is  allocated  via  operating  system
18       mechanisms to avoid copying in the IPC layer.
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21       The  argument  handle  describes the handle on which the buffer will be
22       allocated.
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24       The argument size requests a buffer of size be allocated.
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26       The buffer argument is set to the buffer address that is  allocated  by
27       this operation.
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RETURN VALUE

31       This  call returns the CS_OK value if successful, otherwise an error is
32       returned.
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ERRORS

35       The errors are undocumented.
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SEE ALSO

38       cpg_overview(8),  cpg_initialize(3),  cpg_finalize(3),   cpg_fd_get(3),
39       cpg_dispatch(3),    cpg_join(3),   cpg_leave(3),   cpg_mcast_joined(3),
40       cpg_membership_get(3)         cpg_zcb_alloc(3)          cpg_zcb_free(3)
41       cpg_zcb_mcast_joined(3)      cpg_context_get(3)      cpg_context_set(3)
42       cpg_local_get(3)
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45       CS_ERR_TRY_AGAIN Resource temporarily unavailable
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47       CS_ERR_INVALID_PARAM Invalid argument
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49       CS_ERR_ACCESS Permission denied
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51       CS_ERR_LIBRARY The connection failed
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53       CS_ERR_INTERRUPT System call interrupted by a signal
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55       CS_ERR_NOT_SUPPORTED The requested protocol/functionality not supported
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57       CS_ERR_MESSAGE_ERROR Incorrect auth message received
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59       CS_ERR_NO_MEMORY Not enough memory to complete the requested task
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63corosync Man Page                 2009-04-15                  CPG_ZCB_ALLOC(3)
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