Outline ![]()
Files ![]()
loading...
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
/**************************************************************************/
/* */
/* 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"
#include "tx_thread.h"
/**************************************************************************/
/* */
/* FUNCTION RELEASE */
/* */
/* _nx_tcp_socket_thread_suspend PORTABLE C */
/* 6.1 */
/* 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 */
/* */
/* 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 */
/* */
/**************************************************************************/
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);
}