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
|
#include "ace/Sig_Adapter.h"
ACE_Sig_Adapter::ACE_Sig_Adapter (ACE_Sig_Action &sa, int sigkey)
: sigkey_ (sigkey),
type_ (SIG_ACTION),
sa_ (sa),
sig_func_ (nullptr)
{
}
ACE_Sig_Adapter::ACE_Sig_Adapter (ACE_Event_Handler *eh, int sigkey)
: sigkey_ (sigkey),
type_ (ACE_HANDLER),
eh_ (eh),
sig_func_ (nullptr)
{
}
ACE_Sig_Adapter::ACE_Sig_Adapter (ACE_Sig_Handler_Ex sig_func, int sigkey)
: sigkey_ (sigkey),
type_ (C_FUNCTION),
sig_func_ (sig_func)
{
}
ACE_ALLOC_HOOK_DEFINE(ACE_Sig_Adapter)
int
ACE_Sig_Adapter::sigkey () const
{
ACE_TRACE ("ACE_Sig_Adapter::sigkey");
return this->sigkey_;
}
int
ACE_Sig_Adapter::handle_signal (int signum, siginfo_t *siginfo, ucontext_t *ucontext)
{
ACE_TRACE ("ACE_Sig_Adapter::handle_signal");
switch (this->type_)
{
case SIG_ACTION:
{
// We have to dispatch a handler that was registered by a
// third-party library.
ACE_Sig_Action old_disp;
// Make sure this handler executes in the context it was
// expecting...
this->sa_.register_action (signum, &old_disp);
ACE_SignalHandler sig_handler = this->sa_.handler ();
ACE_Sig_Handler_Ex sig_func = reinterpret_cast<ACE_Sig_Handler_Ex> (reinterpret_cast<void*> (sig_handler));
(*sig_func) (signum, siginfo, ucontext);
// Restore the original disposition.
old_disp.register_action (signum);
break;
}
case ACE_HANDLER:
this->eh_->handle_signal (signum, siginfo, ucontext);
break;
case C_FUNCTION:
(*this->sig_func_) (signum, siginfo, ucontext);
break;
}
return 0;
}
|
