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node/src/node_timer.cc at master · silentrob/node · GitHub
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#
include
<
node.h
>
#
include
<
node_timer.h
>
#
include
<
assert.h
>
using
namespace
v8
;
using
namespace
node
;
Persistent<FunctionTemplate> Timer::constructor_template;
static
Persistent<String> timeout_symbol;
static
Persistent<String> repeat_symbol;
void
Timer::Initialize
(Handle<Object> target)
{
HandleScope scope;
Local<FunctionTemplate> t =
FunctionTemplate::New
(Timer::New);
constructor_template = Persistent<FunctionTemplate>::
New
(t);
constructor_template->
Inherit
(EventEmitter::constructor_template);
constructor_template->
InstanceTemplate
()->
SetInternalFieldCount
(
1
);
constructor_template->
SetClassName
(
String::NewSymbol
(
"
Timer
"
));
timeout_symbol =
NODE_PSYMBOL
(
"
timeout
"
);
repeat_symbol =
NODE_PSYMBOL
(
"
repeat
"
);
NODE_SET_PROTOTYPE_METHOD
(constructor_template,
"
start
"
, Timer::Start);
NODE_SET_PROTOTYPE_METHOD
(constructor_template,
"
stop
"
, Timer::Stop);
constructor_template->
InstanceTemplate
()->
SetAccessor
(repeat_symbol,
RepeatGetter, RepeatSetter);
target->
Set
(
String::NewSymbol
(
"
Timer
"
), constructor_template->
GetFunction
());
}
Handle<Value>
Timer::RepeatGetter
(Local<String> property,
const
AccessorInfo& info)
{
HandleScope scope;
Timer *timer = ObjectWrap::Unwrap<Timer>(info.
This
());
assert
(timer);
assert
(property == repeat_symbol);
Local<Integer> v =
Integer::New
(timer->
watcher_
.
repeat
);
return
scope.
Close
(v);
}
void
Timer::RepeatSetter
(Local<String> property, Local<Value> value,
const
AccessorInfo& info)
{
HandleScope scope;
Timer *timer = ObjectWrap::Unwrap<Timer>(info.
This
());
assert
(timer);
assert
(property == repeat_symbol);
timer->
watcher_
.
repeat
=
NODE_V8_UNIXTIME
(value);
}
void
Timer::OnTimeout
(
EV_P_
ev_timer *watcher,
int
revents)
{
Timer *timer =
static_cast
<Timer*>(watcher->
data
);
assert
(revents ==
EV_TIMEOUT
);
timer->
Emit
(timeout_symbol,
0
,
NULL
);
if
(timer->
watcher_
.
repeat
==
0
) timer->
Unref
();
}
Timer::~Timer
()
{
ev_timer_stop
(
EV_DEFAULT_UC_
&watcher_);
}
Handle<Value>
Timer::New
(
const
Arguments& args)
{
HandleScope scope;
Timer *t =
new
Timer
();
t->
Wrap
(args.
Holder
());
return
args.
This
();
}
Handle<Value>
Timer::Start
(
const
Arguments& args)
{
Timer *timer = ObjectWrap::Unwrap<Timer>(args.
Holder
());
HandleScope scope;
if
(args.
Length
() !=
2
)
return
ThrowException
(
String::New
(
"
Bad arguments
"
));
ev_tstamp after =
NODE_V8_UNIXTIME
(args[
0
]);
ev_tstamp repeat =
NODE_V8_UNIXTIME
(args[
1
]);
ev_timer_init
(&timer->
watcher_
, Timer::OnTimeout, after, repeat);
timer->
watcher_
.
data
= timer;
ev_timer_start
(
EV_DEFAULT_UC_
&timer->
watcher_
);
timer->
Ref
();
return
Undefined
();
}
Handle<Value>
Timer::Stop
(
const
Arguments& args)
{
Timer *timer = ObjectWrap::Unwrap<Timer>(args.
Holder
());
if
(
ev_is_active
(&timer->
watcher_
)) {
ev_timer_stop
(
EV_DEFAULT_UC_
&timer->
watcher_
);
timer->
Unref
();
}
return
Undefined
();
}
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