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Top Forums Shell Programming and Scripting Make a copy of a file when someone tries to modify the file Post 303043136 by Neo on Sunday 19th of January 2020 11:37:01 PM
Old 01-20-2020
Dear mohtashims,

You know how it works here at unix.com.

You show your own work and what you have tried, any research you did, input / output and error messages.

You must show YOUR OWN WORK and not post here expecting us to do your work for you.

Otherwise, your company should put us all on your payroll and pay us, instead of you Smilie

PS: You have nearly 1,000 posts here but you post like someone who is a novice and has never posted here before. Please take note of my message to you as the lead admin and most senior person here.

Show your work.
 

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RDMA_POST_UD_SEND(3)					   Librdmacm Programmer's Manual				      RDMA_POST_UD_SEND(3)

NAME
rdma_post_ud_send - post a work request to send a datagram. SYNOPSIS
#include <rdma/rdma_verbs.h> int rdma_post_ud_send (struct rdma_cm_id *id, void *context, void *addr, size_t length, struct ibv_mr *mr, int flags, struct ibv_ah *ah, uint32_t remote_qpn); ARGUMENTS
id A reference to a communication identifier where the message buffer will be posted. context User-defined context associated with the request. addr The address of the memory buffer to post. length The length of the memory buffer. mr Optional registered memory region associated with the posted buffer. flags Optional flags used to control the send operation. ah An address handle describing the address of the remote node. remote_qpn The number of the destination queue pair. DESCRIPTION
Posts a work request to the send queue of the queue pair associated with the rdma_cm_id. The contents of the posted buffer will be sent to the specified destination queue pair. RETURN VALUE
Returns 0 on success, or -1 on error. If an error occurs, errno will be set to indicate the failure reason. NOTES
The user is responsible for ensuring that the destination queue pair has queued a receive request before issuing the send operations. For a list of supported flags, see ibv_post_send. Unless the send request is using inline data, the message buffer must have been registered before being posted, with the mr parameter referencing the registration. The buffer must remain registered until the send completes. The user-defined context associated with the send request will be returned to the user through the work completion wr_id, work request identifier, field. SEE ALSO
rdma_cm(7), rdma_connect(3), rdma_accept(3), rdma_reg_msgs(3) ibv_post_send(3), rdma_post_recv(3) librdmacm 2010-07-19 RDMA_POST_UD_SEND(3)
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