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
|
/*
* fiber1_win32.c
*
* $Id: fiber1_win32.c,v 1.1.1.1 2006/04/11 17:56:16 source Exp $
*
* Win32 Native implementation for fibers
* Use this instead of fiber[12]_generic.c
*
* This file is part of the OpenLink Software Virtuoso Open-Source (VOS)
* project.
*
* Copyright (C) 1998-2006 OpenLink Software
*
* This project is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; only version 2 of the License, dated June 1991.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*
*/
#include "thread_int.h"
typedef VOID (WINAPI *PFIBER_START_ROUTINE)(LPVOID lpFiberParameter);
typedef PFIBER_START_ROUTINE LPFIBER_START_ROUTINE;
WINBASEAPI LPVOID WINAPI CreateFiber(
DWORD dwStackSize,
LPFIBER_START_ROUTINE lpStartAddress,
LPVOID lpParameter);
WINBASEAPI VOID WINAPI DeleteFiber (LPVOID lpFiber);
WINBASEAPI LPVOID WINAPI ConvertThreadToFiber (LPVOID lpParameter);
WINBASEAPI VOID WINAPI SwitchToFiber (LPVOID lpFiber);
WINBASEAPI BOOL WINAPI SwitchToThread (VOID);
unsigned long context_switches;
static void WINAPI
_fiber_start (void *param)
{
auto unsigned int marker = THREAD_STACK_MARKER;
thread_t *thr = (thread_t *) param;
int rc;
thr->thr_stack_marker = ▮
/* Store the context so we can easily restart a dead fiber */
setjmp (thr->thr_init_context);
rc = (*thr->thr_initial_function) (thr->thr_initial_argument);
/* Fiber died, put it on the dead queue */
thread_exit (rc);
/* We should NEVER come here */
GPF_T;
}
void
_fiber_switch (thread_t *new_thread)
{
context_switches++;
_current_fiber = new_thread;
SwitchToFiber (new_thread->thr_handle);
}
void
_fiber_for_thread (thread_t *self, unsigned long stack_size)
{
static int init_done;
self->thr_stack_size = stack_size;
if (init_done == 0)
{
init_done = 1;
self->thr_handle = ConvertThreadToFiber (NULL);
}
else
self->thr_handle = CreateFiber (stack_size, _fiber_start, self);
assert (self->thr_handle != NULL);
}
|
