This repository has been archived by the owner on Feb 11, 2021. It is now read-only.
SDL_systhread.c
1
2
/*
SDL - Simple DirectMedia Layer
3
Copyright (C) 1997-2006 Sam Lantinga
4
5
This library is free software; you can redistribute it and/or
6
modify it under the terms of the GNU Lesser General Public
7
License as published by the Free Software Foundation; either
8
version 2.1 of the License, or (at your option) any later version.
9
10
11
12
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13
Lesser General Public License for more details.
15
16
17
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19
Sam Lantinga
20
slouken@libsdl.org
21
*/
22
#include "SDL_config.h"
24
/* BeOS thread management routines for SDL */
25
26
27
#include "SDL_mutex.h"
#include "SDL_thread.h"
28
29
#include "../SDL_thread_c.h"
#include "../SDL_systhread.h"
30
#include "mydebug.h"
32
33
34
35
36
37
typedef struct
{
int (*func) (void *);
void *data;
SDL_Thread *info;
struct Task *wait;
38
39
} thread_args;
40
41
#ifndef MORPHOS
42
43
44
#if defined(__SASC) && !defined(__PPC__)
__saveds __asm Uint32
RunThread (register __a0 char *args)
45
#elif defined(__PPC__)
46
47
Uint32
RunThread (char *args)
48
#else
49
50
Uint32 __saveds
RunThread (char *args __asm ("a0"))
51
52
#endif
{
53
54
55
56
57
#ifdef STORMC4_WOS
thread_args *data = (thread_args *) args;
#else
thread_args *data = (thread_args *) atol (args);
#endif
59
struct Task *Father;
61
62
D (bug ("Received data: %lx\n", data));
Father = data->wait;
64
SDL_RunThread (data);
66
67
68
Signal (Father, SIGBREAKF_CTRL_F);
D (bug ("Thread with data %lx ended\n", data));
return (0);
69
70
}
71
72
73
74
#else
#include <emul/emulinterface.h>
75
76
Uint32
RunTheThread (void)
78
79
thread_args *data = (thread_args *) atol ((char *) REG_A0);
struct Task *Father;
81
82
D (bug ("Received data: %lx\n", data));
Father = data->wait;
84
SDL_RunThread (data);
86
87
88
Signal (Father, SIGBREAKF_CTRL_F);
D (bug ("Thread with data %lx ended\n", data));
return (0);
91
92
93
94
struct EmulLibEntry RunThreadStruct = {
TRAP_LIB,
0,
(ULONG) RunTheThread
97
void *RunThread = &RunThreadStruct;
98
99
100
#endif
101
102
int
SDL_SYS_CreateThread (SDL_Thread * thread, void *args)
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
/* Create the thread and go! */
char buffer[20];
D (bug ("Sending %lx to the new thread...\n", args));
if (args)
SDL_snprintf (buffer, SDL_arraysize (buffer), "%ld", args);
#ifdef STORMC4_WOS
thread->handle = CreateTaskPPCTags (TASKATTR_CODE, RunThread,
TASKATTR_NAME, "SDL subtask",
TASKATTR_STACKSIZE, 100000,
(args ? TASKATTR_R3 : TAG_IGNORE),
args, TASKATTR_INHERITR2, TRUE,
TAG_DONE);
#else
thread->handle = (struct Task *) CreateNewProcTags (NP_Output, Output (),
NP_Name,
(ULONG) "SDL subtask",
NP_CloseOutput, FALSE,
NP_StackSize, 20000,
NP_Entry,
(ULONG) RunThread,
args ? NP_Arguments :
TAG_IGNORE,
(ULONG) buffer,
TAG_DONE);
#endif
if (!thread->handle) {
SDL_SetError ("Not enough resources to create thread");
return (-1);
}
return (0);
139
140
}
141
142
void
SDL_SYS_SetupThread (void)
143
144
145
{
}
146
147
Uint32
SDL_ThreadID (void)
148
{
149
return ((Uint32) FindTask (NULL));
150
151
}
152
153
void
SDL_SYS_WaitThread (SDL_Thread * thread)
154
{
155
156
SetSignal (0L, SIGBREAKF_CTRL_F | SIGBREAKF_CTRL_C);
Wait (SIGBREAKF_CTRL_F | SIGBREAKF_CTRL_C);
157
158
}
159
160
void
SDL_SYS_KillThread (SDL_Thread * thread)
161
{
162
Signal ((struct Task *) thread->handle, SIGBREAKF_CTRL_C);
163
}
164
165
/* vi: set ts=4 sw=4 expandtab: */