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dat_cno_create(3dat) [opensolaris man page]

dat_cno_create(3DAT)				     Direct Access Transport Library Functions				      dat_cno_create(3DAT)

NAME
dat_cno_create - create a CNO instance SYNOPSIS
cc [ flag... ] file... -ldat [ library... ] #include <dat/udat.h> DAT_RETURN dat_cno_create ( IN DAT_IA_HANDLE ia_handle, IN DAT_OS_WAIT_PROXY_AGENT agent, OUT DAT_CNO_HANDLE *cno_handle ) PARAMETERS
ia_handle Handle for an instance of DAT IA. agent An optional OS Wait Proxy Agent that is to be invoked whenever CNO is invoked. DAT_OS_WAIT_PROXY_AGENT_NULL indicates that there is no proxy agent cno_handle Handle for the created instance of CNO. DESCRIPTION
The dat_cno_create() function creates a CNO instance. Upon creation, there are no Event Dispatchers feeding it. The agent parameter specifies the proxy agent, which is OS-dependent and which is invoked when the CNO is triggered. After it is invoked, it is no longer associated with the CNO. The value of DAT_OS_WAIT_PROXY_AGENT_NULL specifies that no OS Wait Proxy Agent is associated with the created CNO. Upon creation, the CNO is not associated with any EVDs, has no waiters and has, at most, one OS Wait Proxy Agent. RETURN VALUES
DAT_SUCCESS The operation was successful. DAT_INSUFFICIENT_RESOURCES The operation failed due to resource limitations. DAT_INVALID_HANDLE The ia_handle parameter is invalid. DAT_INVALID_PARAMETER One of the parameters was invalid, out of range, or a combination of parameters was invalid, or the agent parameter is invalid. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard: uDAPL, 1.1, 1.2 | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+ SEE ALSO
libdat(3LIB), attributes(5) SunOS 5.11 16 Jul 2004 dat_cno_create(3DAT)

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dat_cno_wait(3DAT)				     Direct Access Transport Library Functions					dat_cno_wait(3DAT)

NAME
dat_cno_wait - wait for notification events SYNOPSIS
cc [ flag... ] file... -ldat [ library... ] #include <dat/udat.h> DAT_RETURN dat_cno_wait ( IN DAT_CNO_HANDLE cno_handle, IN DAT_TIMEOUT timeout, OUT DAT_EVD_HANDLE *evd_handle ) PARAMETERS
cno_handle Handle for an instance of CNO timeout The duration to wait for a notification. The value DAT_TIMEOUT_INFINITE can be used to wait indefinitely. evd_handle Handle for an instance of EVD DESCRIPTION
The dat_cno_wait() function allows the Consumer to wait for notification events from a set of Event Dispatchers all from the same Interface Adapter. The Consumer blocks until notified or the timeout period expires. An Event Dispatcher that is disabled or in the "Waited" state does not deliver notifications. A uDAPL Consumer waiting directly upon an Event Dispatcher preempts the CNO. The consumer can optionally specify a timeout, after which it is unblocked even if there are no notification events. On a timeout, evd_han- dle is explicitly set to a null handle. The returned evd_handle is only a hint. Another Consumer can reap the Event before this Consumer can get around to checking the Event Dis- patcher. Additionally, other Event Dispatchers feeding this CNO might have been notified. The Consumer is responsible for ensuring that all EVDs feeding this CNO are polled regardless of whether they are identified as the immediate cause of the CNO unblocking. All the waiters on the CNO, including the OS Wait Proxy Agent if it is associated with the CNO, are unblocked with the NULL handle returns for an unblocking EVD evd_handle when the IA instance is destroyed or when all EVDs the CNO is associated with are freed. RETURN VALUES
DAT_SUCCESS The operation was successful. DAT_INVALID_HANDLE The cno_handle parameter is invalid. DAT_QUEUE_EMPTY The operation timed out without a notification. DAT_INVALID_PARAMETER One of the parameters was invalid or out of range, a combination of parameters was invalid, or the timeout parame- ter is invalid. DAT_INTERRUPTED_CALL The operation was interrupted by a signal. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |Interface Stability |Standard: uDAPL, 1.1, 1.2 | +-----------------------------+-----------------------------+ |MT-Level |Safe | +-----------------------------+-----------------------------+ SEE ALSO
libdat(3LIB), attributes(5) SunOS 5.11 16 Jul 2004 dat_cno_wait(3DAT)
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