blob: ca8e2b759c3cc3a3494ab51a36908d6a101bcf2a (
plain) (
blame)
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
|
#ifndef TASK_H
#define TASK_H
#include <stdbool.h>
#include <stdint.h>
#define TASK_NAME_LEN 86
#define MAX_WAITS 16
#define MAX_TASKS 64
struct wait {
enum {
NONE,
PROCESS_END,
WINDOW_ACTION,
IPC_SENT,
IPC_SENT_ANY,
IPC_READ
} mode;
union {
struct task_state *task;
};
};
struct task_state {
uint32_t ret_addr;
void *page_directory;
uint32_t ebx;
uint32_t ecx;
uint32_t edx;
uint32_t esi;
uint32_t edi;
uint32_t ebp;
uint32_t esp;
uint32_t stack_bottom;
struct wait waits[MAX_WAITS];
bool waiting;
char name[TASK_NAME_LEN + 1];
} __attribute__ ((packed));
void add_wait(struct wait wait);
void unwait_any(struct wait wait);
void unwait(struct task_state *task, struct wait wait);
extern struct task_state tasks[];
extern struct task_state *active_task;
void init_tasks();
//puts the handle into ecx
//returns null on full
struct task_state *new_task();
void advance_active_task();
void delete_task(struct task_state *state);
uint32_t ipc_send(uint32_t reader_handle, uint32_t count, const void *buffer);
uint32_t ipc_read(uint32_t sender_handle, uint32_t count, void *buffer);
uint32_t find_unread_ipc() __attribute__ ((pure));
#endif
|