netxduo
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Outline
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#define NX_SOURCE_CODE
#include "nx_api.h"
#include "nx_tcp.h"
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_nx_tcp_socket_state_wait(NX_TCP_SOCKET *, UINT, ULONG)
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SourceVuSTM32 Libraries and Samplesnetxduocommon/src/nx_tcp_socket_state_wait.c
 
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/**************************************************************************/ /* */ /* Copyright (c) Microsoft Corporation. All rights reserved. */ /* */ /* This software is licensed under the Microsoft Software License */ /* Terms for Microsoft Azure RTOS. Full text of the license can be */ /* found in the LICENSE file at https://aka.ms/AzureRTOS_EULA */ /* and in the root directory of this software. */ /* */... /**************************************************************************/ ... /**************************************************************************/ /**************************************************************************/ /** */ /** NetX Component */ /** */ /** Transmission Control Protocol (TCP) */ /** */... /**************************************************************************/ /**************************************************************************/ #define NX_SOURCE_CODE /* Include necessary system files. */ #include "nx_api.h" #include "nx_tcp.h" ... /**************************************************************************/ /* */ /* FUNCTION RELEASE */ /* */ /* _nx_tcp_socket_state_wait PORTABLE C */ /* 6.1 */ /* AUTHOR */ /* */ /* Yuxin Zhou, Microsoft Corporation */ /* */ /* DESCRIPTION */ /* */ /* This function waits for the specified socket to reach the specified */ /* TCP state. */ /* */ /* INPUT */ /* */ /* socket_ptr Pointer to socket */ /* desired_state Desired TCP state */ /* wait_option Suspension option */ /* */ /* OUTPUT */ /* */ /* status Completion status */ /* */ /* CALLS */ /* */ /* tx_thread_sleep Sleep to wait for state change*/ /* */ /* CALLED BY */ /* */ /* Application */ /* */ /* RELEASE HISTORY */ /* */ /* DATE NAME DESCRIPTION */ /* */ /* 05-19-2020 Yuxin Zhou Initial Version 6.0 */ /* 09-30-2020 Yuxin Zhou Modified comment(s), */ /* resulting in version 6.1 */ /* */... /**************************************************************************/ UINT _nx_tcp_socket_state_wait(NX_TCP_SOCKET *socket_ptr, UINT desired_state, ULONG wait_option) { /* If trace is enabled, insert this event into the trace buffer. */ NX_TRACE_IN_LINE_INSERT(NX_TRACE_TCP_SOCKET_STATE_WAIT, socket_ptr -> nx_tcp_socket_ip_ptr, socket_ptr, desired_state, socket_ptr -> nx_tcp_socket_state, NX_TRACE_TCP_EVENTS, 0, 0); /* Loop to wait for the desired socket state. */ for (;;) { /* Determine if the socket pointer is still valid. */ if (socket_ptr -> nx_tcp_socket_id != NX_TCP_ID) { /* Not still valid, return an error. */ return(NX_PTR_ERROR); }if (socket_ptr -> nx_tcp_socket_id != NX_TCP_ID) { ... } /* Determine if the desired state is present. */ if (socket_ptr -> nx_tcp_socket_state == desired_state) { /* The desired state is present, return success! */ return(NX_SUCCESS); }if (socket_ptr -> nx_tcp_socket_state == desired_state) { ... } /* Check to see if there is more time to wait. */ if (wait_option) { /* Yes, there is more time... sleep for a tick. */ tx_thread_sleep(1); /* Decrease the wait time. */ wait_option--; }if (wait_option) { ... } else { /* Timeout, just return an error. */ return(NX_NOT_SUCCESSFUL); }else { ... } }for (;;) { ... } }{ ... }
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