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/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
* Copyright (c) 2025-present Eclipse ThreadX Contributors
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** NetX Component */
/** */
/** Transmission Control Protocol (TCP) */
/** */
/**************************************************************************/
/**************************************************************************/
#define NX_SOURCE_CODE
/* Include necessary system files. */
#include "nx_api.h"
#include "nx_tcp.h"
#include "tx_thread.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_tcp_socket_thread_suspend PORTABLE C */
/* 6.4.3 */
/* AUTHOR */
/* */
/* Yuxin Zhou, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This function suspends a thread on a TCP service within */
/* NetX. */
/* */
/* INPUT */
/* */
/* suspension_list_head Pointer to the suspension list*/
/* mutex_ptr Pointer to mutex to release */
/* suspend_cleanup Suspension cleanup routine */
/* wait_option Optional timeout value */
/* */
/* OUTPUT */
/* */
/* None */
/* */
/* CALLS */
/* */
/* tx_mutex_put Release protection */
/* _tx_thread_system_suspend Suspend thread */
/* */
/* CALLED BY */
/* */
/* _nx_tcp_client_socket_bind Client socket bind processing */
/* _nx_tcp_client_socket_connect Client socket connect */
/* processing */
/* _nx_tcp_socket_disconnect Socket disconnect processing */
/* _nx_tcp_socket_receive Socket receive processing */
/* _nx_tcp_socket_send Socket send processing */
/* _nx_tcp_server_socket_accept Server socket accept */
/* processing */
/* */
/**************************************************************************/
VOID _nx_tcp_socket_thread_suspend(TX_THREAD **suspension_list_head, VOID (*suspend_cleanup)(TX_THREAD * NX_CLEANUP_PARAMETER), NX_TCP_SOCKET *socket_ptr, TX_MUTEX *mutex_ptr, ULONG wait_option)
{
TX_INTERRUPT_SAVE_AREA
TX_THREAD *thread_ptr;
/* Disable interrupts. */
TX_DISABLE
/* Pickup thread pointer. */
thread_ptr = _tx_thread_current_ptr;
/* Setup suspension list. */
if (*suspension_list_head)
{
/* This list is not NULL, add current thread to the end. */
thread_ptr -> tx_thread_suspended_next = *suspension_list_head;
thread_ptr -> tx_thread_suspended_previous = (*suspension_list_head) -> tx_thread_suspended_previous;
((*suspension_list_head) -> tx_thread_suspended_previous) -> tx_thread_suspended_next = thread_ptr;
(*suspension_list_head) -> tx_thread_suspended_previous = thread_ptr;
}
else
{
/* No other threads are suspended. Setup the head pointer and
just setup this threads pointers to itself. */
*suspension_list_head = thread_ptr;
thread_ptr -> tx_thread_suspended_next = thread_ptr;
thread_ptr -> tx_thread_suspended_previous = thread_ptr;
}
/* Setup cleanup routine pointer. */
thread_ptr -> tx_thread_suspend_cleanup = suspend_cleanup;
/* Setup cleanup information, i.e. this pool control
block. */
thread_ptr -> tx_thread_suspend_control_block = (void *)socket_ptr;
/* Set the state to suspended. */
thread_ptr -> tx_thread_state = TX_TCP_IP;
/* Set the suspending flag. */
thread_ptr -> tx_thread_suspending = TX_TRUE;
/* Temporarily disable preemption. */
_tx_thread_preempt_disable++;
/* Save the timeout value. */
thread_ptr -> tx_thread_timer.tx_timer_internal_remaining_ticks = wait_option;
/* Restore interrupts. */
TX_RESTORE
/* Release protection. */
tx_mutex_put(mutex_ptr);
/* Call actual thread suspension routine. */
_tx_thread_system_suspend(thread_ptr);
}
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