dat_cr_query(3dat)

1dat_cr_query(3DAT) Direct Access Transport Library Functionsdat_cr_query(3DAT)
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NAME

6       dat_cr_query - provide parameters of the Connection Request
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SYNOPSIS

9       cc [ flag... ] file... -ldat [ library... ]
10       #include <dat/udat.h>
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12       DAT_RETURN
13           dat_cr_query (
14           IN    DAT_CR_HANDLE        cr_handle,
15           IN    DAT_CR_PARAM_MASK    cr_param_mask,
16           OUT   DAT_CR_PARAM         *cr_param
17           )
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PARAMETERS

21       cr_handle        Handle for an instance of a Connection Request.
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24       cr_param_mask    Mask for Connection Request parameters.
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27       cr_param         Pointer  to  a  Consumer-allocated  structure that the
28                        Provider fills for Consumer-requested parameters.
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DESCRIPTION

32       The dat_cr_query() function provides to the Consumer parameters of  the
33       Connection  Request.  The Consumer passes in a pointer to the Consumer-
34       allocated  structures  for  Connection  Request  parameters  that   the
35       Provider fills.
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38       The  cr_param_mask  parameter allows Consumers to specify which parame‐
39       ters to query. The Provider returns values for cr_param_mask  requested
40       parameters. The Provider can return values for any other parameters.
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RETURN VALUES

43       DAT_SUCCESS              The operation was successful
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46       DAT_INVALID_HANDLE       The cr_handle handle is invalid.
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49       DAT_INVALID_PARAMETER    The cr_param_mask parameter is invalid.
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USAGE

53       The  Consumer uses dat_cr_query() to get information about requesting a
54       remote Endpoint as well as a local Endpoint if it was allocated by  the
55       Provider for the arrived Connection Request. The local Endpoint is cre‐
56       ated if the Consumer used PSP with DAT_PSP_PROVIDER as  the  value  for
57       psp_flags.   For   the   remote   Endpoint,   dat_cr_query()   provides
58       remote_ia_address and remote_port_qual. It also  provides  remote  peer
59       private_data and its size.
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ATTRIBUTES

62       See attributes(5) for descriptions of the following attributes:
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67       ┌─────────────────────────────┬─────────────────────────────┐
68       │      ATTRIBUTE TYPE         │      ATTRIBUTE VALUE        │
69       ├─────────────────────────────┼─────────────────────────────┤
70       │Interface Stability          │Standard: uDAPL, 1.1, 1.2    │
71       ├─────────────────────────────┼─────────────────────────────┤
72       │MT-Level                     │Safe                         │
73       └─────────────────────────────┴─────────────────────────────┘
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