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
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
/**
* @file lv_pthread.c
*
*/
/*********************
* INCLUDES
*********************/
#include "lv_os.h"
#if LV_USE_OS == LV_OS_PTHREAD
#include <errno.h>
#include "../misc/lv_log.h"
/*********************
* DEFINES
*********************/
/**********************
* TYPEDEFS
**********************/
/**********************
* STATIC PROTOTYPES
**********************/
static void * generic_callback(void * user_data);
/**********************
* STATIC VARIABLES
**********************/
/**********************
* MACROS
**********************/
/**********************
* GLOBAL FUNCTIONS
**********************/
lv_result_t lv_thread_init(lv_thread_t * thread, lv_thread_prio_t prio, void (*callback)(void *), size_t stack_size,
void * user_data)
{
LV_UNUSED(prio);
LV_UNUSED(stack_size);
thread->callback = callback;
thread->user_data = user_data;
pthread_create(&thread->thread, NULL, generic_callback, thread);
return LV_RESULT_OK;
}
lv_result_t lv_thread_delete(lv_thread_t * thread)
{
int ret = pthread_join(thread->thread, NULL);
if(ret != 0) {
LV_LOG_WARN("Error: %d", ret);
return LV_RESULT_INVALID;
}
return LV_RESULT_OK;
}
lv_result_t lv_mutex_init(lv_mutex_t * mutex)
{
int ret = pthread_mutex_init(mutex, NULL);
if(ret) {
LV_LOG_WARN("Error: %d", ret);
return LV_RESULT_INVALID;
}
else {
return LV_RESULT_OK;
}
}
lv_result_t lv_mutex_lock(lv_mutex_t * mutex)
{
int ret = pthread_mutex_lock(mutex);
if(ret) {
LV_LOG_WARN("Error: %d", ret);
return LV_RESULT_INVALID;
}
else {
return LV_RESULT_OK;
}
}
lv_result_t lv_mutex_lock_isr(lv_mutex_t * mutex)
{
int ret = pthread_mutex_lock(mutex);
if(ret) {
LV_LOG_WARN("Error: %d", ret);
return LV_RESULT_INVALID;
}
else {
return LV_RESULT_OK;
}
}
lv_result_t lv_mutex_unlock(lv_mutex_t * mutex)
{
int ret = pthread_mutex_unlock(mutex);
if(ret) {
LV_LOG_WARN("Error: %d", ret);
return LV_RESULT_INVALID;
}
else {
return LV_RESULT_OK;
}
}
lv_result_t lv_mutex_delete(lv_mutex_t * mutex)
{
pthread_mutex_destroy(mutex);
return LV_RESULT_OK;
}
lv_result_t lv_thread_sync_init(lv_thread_sync_t * sync)
{
pthread_mutex_init(&sync->mutex, 0);
pthread_cond_init(&sync->cond, 0);
sync->v = false;
return LV_RESULT_OK;
}
lv_result_t lv_thread_sync_wait(lv_thread_sync_t * sync)
{
pthread_mutex_lock(&sync->mutex);
while(!sync->v) {
pthread_cond_wait(&sync->cond, &sync->mutex);
}
sync->v = false;
pthread_mutex_unlock(&sync->mutex);
return LV_RESULT_OK;
}
lv_result_t lv_thread_sync_signal(lv_thread_sync_t * sync)
{
pthread_mutex_lock(&sync->mutex);
sync->v = true;
pthread_cond_signal(&sync->cond);
pthread_mutex_unlock(&sync->mutex);
return LV_RESULT_OK;
}
lv_result_t lv_thread_sync_delete(lv_thread_sync_t * sync)
{
pthread_mutex_destroy(&sync->mutex);
pthread_cond_destroy(&sync->cond);
return LV_RESULT_OK;
}
/**********************
* STATIC FUNCTIONS
**********************/
static void * generic_callback(void * user_data)
{
lv_thread_t * thread = user_data;
thread->callback(thread->user_data);
return NULL;
}
#endif /*LV_USE_OS == LV_OS_PTHREAD*/
|
