-
Notifications
You must be signed in to change notification settings - Fork 12
/
taskimpl.h
215 lines (187 loc) · 4.83 KB
/
taskimpl.h
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
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
/* Copyright (c) 2005-2006 Russ Cox, MIT; see COPYRIGHT */
#if defined(__sun__)
# define __EXTENSIONS__ 1 /* SunOS */
# if defined(__SunOS5_6__) || defined(__SunOS5_7__) || defined(__SunOS5_8__)
/* NOT USING #define __MAKECONTEXT_V2_SOURCE 1 / * SunOS */
# else
# define __MAKECONTEXT_V2_SOURCE 1
# endif
#endif
#define USED(x) if(x){}else{}
#define USE_UCONTEXT 1
#if defined(__OpenBSD__) || defined(__mips__)
#undef USE_UCONTEXT
#define USE_UCONTEXT 0
#endif
#if defined(__linux__) && defined(__amd64__)
#define _UCONTEXT_H 1
#define _SYS_UCONTEXT_H 1
#undef USE_UCONTEXT
#define USE_UCONTEXT 0
#endif
#if defined(__APPLE__)
#include <AvailabilityMacros.h>
#if defined(MAC_OS_X_VERSION_10_5)
#undef USE_UCONTEXT
#define USE_UCONTEXT 0
#endif
#endif
#define USE_EPOLL 1
#if !defined(__linux)
#undef USE_EPOLL
#define USE_EPOLL 0
#endif
#include <errno.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <assert.h>
#include <time.h>
#include <sys/time.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sched.h>
#include <signal.h>
#if USE_UCONTEXT
#include <ucontext.h>
#endif
#include <sys/utsname.h>
#include <inttypes.h>
#include "task.h"
#define nil ((void*)0)
#define nelem(x) (sizeof(x)/sizeof((x)[0]))
#define ulong task_ulong
#define uint task_uint
#define uchar task_uchar
#define ushort task_ushort
#define uvlong task_uvlong
#define vlong task_vlong
typedef unsigned long ulong;
typedef unsigned int uint;
typedef unsigned char uchar;
typedef unsigned short ushort;
typedef unsigned long long uvlong;
typedef long long vlong;
#define print task_print
#define fprint task_fprint
#define snprint task_snprint
#define seprint task_seprint
#define vprint task_vprint
#define vfprint task_vfprint
#define vsnprint task_vsnprint
#define vseprint task_vseprint
#define strecpy task_strecpy
int print(char*, ...);
int fprint(int, char*, ...);
char *snprint(char*, uint, char*, ...);
char *seprint(char*, char*, char*, ...);
int vprint(char*, va_list);
int vfprint(int, char*, va_list);
char *vsnprint(char*, uint, char*, va_list);
char *vseprint(char*, char*, char*, va_list);
char *strecpy(char*, char*, char*);
#if defined(__FreeBSD__) && __FreeBSD__ < 5
extern int getmcontext(mcontext_t*);
extern void setmcontext(const mcontext_t*);
#define setcontext(u) setmcontext(&(u)->uc_mcontext)
#define getcontext(u) getmcontext(&(u)->uc_mcontext)
extern int swapcontext(ucontext_t*, const ucontext_t*);
extern void makecontext(ucontext_t*, void(*)(), int, ...);
#endif
#if defined(__linux__) && defined(__amd64__)
# if defined(__i386__)
# include "386-ucontext.h"
# elif defined(__x86_64__)
# include "amd64-ucontext.h"
# endif
extern int getmcontext(mcontext_t*);
extern void setmcontext(const mcontext_t*);
#define setcontext(u) setmcontext(&(u)->uc_mcontext)
#define getcontext(u) getmcontext(&(u)->uc_mcontext)
extern int swapcontext(ucontext_t*, const ucontext_t*);
extern void makecontext(ucontext_t*, void(*)(), int, ...);
#endif
#if defined(__APPLE__)
# define mcontext libthread_mcontext
# define mcontext_t libthread_mcontext_t
# define ucontext libthread_ucontext
# define ucontext_t libthread_ucontext_t
# if defined(__i386__)
# include "386-ucontext.h"
# elif defined(__x86_64__)
# include "amd64-ucontext.h"
# else
# include "power-ucontext.h"
# endif
#endif
#if defined(__OpenBSD__)
# define mcontext libthread_mcontext
# define mcontext_t libthread_mcontext_t
# define ucontext libthread_ucontext
# define ucontext_t libthread_ucontext_t
# if defined __i386__
# include "386-ucontext.h"
# else
# include "power-ucontext.h"
# endif
extern pid_t rfork_thread(int, void*, int(*)(void*), void*);
#endif
#if 0 && defined(__sun__)
# define mcontext libthread_mcontext
# define mcontext_t libthread_mcontext_t
# define ucontext libthread_ucontext
# define ucontext_t libthread_ucontext_t
# include "sparc-ucontext.h"
#endif
#if defined(__arm__)
int getmcontext(mcontext_t*);
void setmcontext(const mcontext_t*);
#define setcontext(u) setmcontext(&(u)->uc_mcontext)
#define getcontext(u) getmcontext(&(u)->uc_mcontext)
#endif
#if defined(__mips__)
#include "mips-ucontext.h"
int getmcontext(mcontext_t*);
void setmcontext(const mcontext_t*);
#define setcontext(u) setmcontext(&(u)->uc_mcontext)
#define getcontext(u) getmcontext(&(u)->uc_mcontext)
#endif
typedef struct Context Context;
enum
{
STACK = 8192
};
struct Context
{
ucontext_t uc;
};
struct Task
{
char name[256]; // offset known to acid
char state[256];
Task *next;
Task *prev;
Task *allnext;
Task *allprev;
Context context;
uvlong alarmtime;
uint id;
uchar *stk;
uint stksize;
int exiting;
int alltaskslot;
int system;
int ready;
void (*startfn)(void*);
void *startarg;
void *udata;
#ifdef USE_VALGRIND
int vid;
#endif
};
void taskready(Task*);
void taskswitch(void);
void addtask(Tasklist*, Task*);
void deltask(Tasklist*, Task*);
extern Task *taskrunning;
extern int taskcount;