0 branches 0 tags
68 81
86
Allow a simple namespace rename for Coroutine_ routines
jonroach
on 2:48 PM May 25 2026
85
86
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
#include "task.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <errno.h>
#include <math.h>
#include <string.h>
#include "timespec_utils.h"
_Cor_thread_local Task *current_task;
static void _Task_SetResult(
Future *fut,
bool canceled,
void *res
){
(void)fut;
(void)canceled;
(void)res;
// only the task can set it's future's result
assert(false);
}
Future_vfptrs_t Task_vfptrs = {
(void(*)(Future *fut))&Task_dtor,
&_Future_Await,
&_Task_SetResult,
};
static void *Task_entry(void *me){
Task *tsk = (Task *)me;
void *res = NULL;
assert(current_task == NULL);
current_task = tsk;
bool canceled = tsk->entry(tsk->param, &res);
current_task = NULL;
_Future_SetResult(&tsk->base, canceled, res);
return res;
}
void Task_ctor(
Task *tsk,
size_t stack_size,
Task_Entry entry,
void *param
){
assert(Coroutine_IsStarted());
Future_ctor(&tsk->base);
tsk->base.vfptrs = &Task_vfptrs;
tsk->entry = entry;
tsk->param = param;
tsk->cor = Coroutine_New(stack_size, Task_entry);
tsk->awaiting_future = NULL;
tsk->canceled = false;
tsk->cancel_value = NULL;
if (current_task){
Coroutine_Continue(tsk->cor, tsk, false);
}
}
void Task_dtor(
Task *tsk
){
Coroutine_Delete(tsk->cor);
Future_dtor(&tsk->base);
}
Task *Task_New(
size_t stack_size,
Task_Entry entry,
void *param
){
Task *tsk = malloc(sizeof(Task));
Task_ctor(tsk, stack_size, entry, param);
return tsk;
}
void Task_Delete(
Task *tsk
){
Future_Delete(&tsk->base);
}
void Task_Cancel(
Task *tsk,
void *cancel_value
){
if (!tsk->canceled){
tsk->canceled = true;
tsk->cancel_value = cancel_value;
Future *awaiting_future = tsk->awaiting_future;
if (awaiting_future){
Future_SetResult(awaiting_future, true, NULL);
}
}
}
struct Task_Run_Params {
size_t stack_size;
Task_Entry start;
void *value;
void **res;
};
static Coroutine_Err Task_Runner(void *_params)
{
struct Task_Run_Params *params = (struct Task_Run_Params *)_params;
Task tsk;
Task_ctor(&tsk, params->stack_size, params->start, params->value);
Coroutine_Err err = Coroutine_Run_Coroutine(tsk.cor, &tsk);
if (!err){
err = Future_GetResult(&tsk.base, params->res);
}
Task_dtor(&tsk);
return err;
}
bool Task_Run(size_t stack_size, Task_Entry start, void *value, void **res){
if (current_task){
return Coroutine_Err_SystemRunning;
}
struct Task_Run_Params params = {stack_size, start, value, res};
return Coroutine_RunSystem(Task_Runner, &params);
}
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
#include "task.h"
#include <assert.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <errno.h>
#include <math.h>
#include <string.h>
#include "timespec_utils.h"
_Cor_thread_local Task *current_task;
static void _Task_SetResult(
Future *fut,
bool canceled,
void *res
){
(void)fut;
(void)canceled;
(void)res;
// only the task can set it's future's result
assert(false);
}
Future_vfptrs_t Task_vfptrs = {
(void(*)(Future *fut))&Task_dtor,
&_Future_Await,
&_Task_SetResult,
};
static void *Task_entry(void *me){
Task *tsk = (Task *)me;
void *res = NULL;
assert(current_task == NULL);
current_task = tsk;
bool canceled = tsk->entry(tsk->param, &res);
current_task = NULL;
_Future_SetResult(&tsk->base, canceled, res);
return res;
}
void Task_ctor(
Task *tsk,
size_t stack_size,
Task_Entry entry,
void *param
){
assert(Coroutine_NS(IsStarted)());
Future_ctor(&tsk->base);
tsk->base.vfptrs = &Task_vfptrs;
tsk->entry = entry;
tsk->param = param;
tsk->cor = Coroutine_NS(New)(stack_size, Task_entry);
tsk->awaiting_future = NULL;
tsk->canceled = false;
tsk->cancel_value = NULL;
if (current_task){
Coroutine_NS(Continue)(tsk->cor, tsk, false);
}
}
void Task_dtor(
Task *tsk
){
Coroutine_NS(Delete)(tsk->cor);
Future_dtor(&tsk->base);
}
Task *Task_New(
size_t stack_size,
Task_Entry entry,
void *param
){
Task *tsk = malloc(sizeof(Task));
Task_ctor(tsk, stack_size, entry, param);
return tsk;
}
void Task_Delete(
Task *tsk
){
Future_Delete(&tsk->base);
}
void Task_Cancel(
Task *tsk,
void *cancel_value
){
if (!tsk->canceled){
tsk->canceled = true;
tsk->cancel_value = cancel_value;
Future *awaiting_future = tsk->awaiting_future;
if (awaiting_future){
Future_SetResult(awaiting_future, true, NULL);
}
}
}
struct Task_Run_Params {
size_t stack_size;
Task_Entry start;
void *value;
void **res;
};
static Coroutine_Err Task_Runner(void *_params)
{
struct Task_Run_Params *params = (struct Task_Run_Params *)_params;
Task tsk;
Task_ctor(&tsk, params->stack_size, params->start, params->value);
Coroutine_Err err = Coroutine_NS(Run_Coroutine)(tsk.cor, &tsk);
if (!err){
err = Future_GetResult(&tsk.base, params->res);
}
Task_dtor(&tsk);
return err;
}
bool Task_Run(size_t stack_size, Task_Entry start, void *value, void **res){
if (current_task){
return Coroutine_Err_SystemRunning;
}
struct Task_Run_Params params = {stack_size, start, value, res};
return Coroutine_NS(RunSystem)(Task_Runner, &params);
}