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//
Copyright Joyent, Inc. and other Node contributors.
//
//
Permission is hereby granted, free of charge, to any person obtaining a
//
copy of this software and associated documentation files (the
//
"Software"), to deal in the Software without restriction, including
//
without limitation the rights to use, copy, modify, merge, publish,
//
distribute, sublicense, and/or sell copies of the Software, and to permit
//
persons to whom the Software is furnished to do so, subject to the
//
following conditions:
//
//
The above copyright notice and this permission notice shall be included
//
in all copies or substantial portions of the Software.
//
//
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
//
OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
//
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
//
NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
//
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
//
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
//
USE OR OTHER DEALINGS IN THE SOFTWARE.
#
include
<
node_signal_watcher.h
>
#
include
<
assert.h
>
namespace
node
{
using
namespace
v8
;
Persistent<FunctionTemplate> SignalWatcher::constructor_template;
static
Persistent<String> callback_symbol;
void
SignalWatcher::Initialize
(Handle<Object> target) {
HandleScope scope;
Local<FunctionTemplate> t =
FunctionTemplate::New
(SignalWatcher::New);
constructor_template = Persistent<FunctionTemplate>::
New
(t);
constructor_template->
InstanceTemplate
()->
SetInternalFieldCount
(
1
);
constructor_template->
SetClassName
(
String::NewSymbol
(
"
SignalWatcher
"
));
NODE_SET_PROTOTYPE_METHOD
(constructor_template,
"
start
"
, SignalWatcher::Start);
NODE_SET_PROTOTYPE_METHOD
(constructor_template,
"
stop
"
, SignalWatcher::Stop);
target->
Set
(
String::NewSymbol
(
"
SignalWatcher
"
),
constructor_template->
GetFunction
());
callback_symbol =
NODE_PSYMBOL
(
"
callback
"
);
}
void
SignalWatcher::Callback
(
EV_P_
ev_signal *watcher,
int
revents) {
SignalWatcher *w =
static_cast
<SignalWatcher*>(watcher->
data
);
assert
(watcher == &w->
watcher_
);
assert
(revents ==
EV_SIGNAL
);
HandleScope scope;
Local<Value> callback_v = w->
handle_
->
Get
(callback_symbol);
if
(!callback_v->
IsFunction
()) {
w->
Stop
();
return
;
}
Local<Function> callback = Local<Function>::
Cast
(callback_v);
TryCatch try_catch;
callback->
Call
(w->
handle_
,
0
,
NULL
);
if
(try_catch.
HasCaught
()) {
FatalException
(try_catch);
}
}
Handle<Value>
SignalWatcher::New
(
const
Arguments& args) {
if
(!args.
IsConstructCall
()) {
return
FromConstructorTemplate
(constructor_template, args);
}
HandleScope scope;
if
(args.
Length
() !=
1
|| !args[
0
]->
IsInt32
()) {
return
ThrowException
(
String::New
(
"
Bad arguments
"
));
}
int
sig = args[
0
]->
Int32Value
();
SignalWatcher *w =
new
SignalWatcher
(sig);
w->
Wrap
(args.
Holder
());
return
args.
This
();
}
Handle<Value>
SignalWatcher::Start
(
const
Arguments& args) {
HandleScope scope;
SignalWatcher *w = ObjectWrap::Unwrap<SignalWatcher>(args.
Holder
());
w->
Start
();
return
Undefined
();
}
void
SignalWatcher::Start
() {
if
(!watcher_.
active
) {
ev_signal_start
(
EV_DEFAULT_UC_
&watcher_);
ev_unref
(
EV_DEFAULT_UC
);
Ref
();
}
}
Handle<Value>
SignalWatcher::Stop
(
const
Arguments& args) {
HandleScope scope;
SignalWatcher *w = ObjectWrap::Unwrap<SignalWatcher>(args.
Holder
());
w->
Stop
();
return
Undefined
();
}
void
SignalWatcher::Stop
() {
if
(watcher_.
active
) {
ev_ref
(
EV_DEFAULT_UC
);
ev_signal_stop
(
EV_DEFAULT_UC_
&watcher_);
Unref
();
}
}
}
//
namespace node
NODE_MODULE
(node_signal_watcher, node::SignalWatcher::Initialize);
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