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Administrator
Magisk
Commits
99ef2062
Commit
99ef2062
authored
May 18, 2020
by
topjohnwu
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Remove unused code
parent
4497e0aa
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blocking_queue.hpp
native/jni/utils/include/blocking_queue.hpp
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native/jni/utils/include/blocking_queue.hpp
deleted
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4497e0aa
#pragma once
#include <pthread.h>
#include <deque>
#include <../misc.hpp>
template
<
typename
T
>
class
blocking_queue
{
std
::
deque
<
T
>
deque
{};
pthread_mutex_t
lock
=
PTHREAD_MUTEX_INITIALIZER
;
pthread_cond_t
cond
=
PTHREAD_COND_INITIALIZER
;
bool
cancelled
=
false
;
public
:
~
blocking_queue
();
T
take
();
T
&
front
()
const
;
T
&
back
()
const
;
void
push
(
const
T
&
);
void
push
(
T
&&
);
template
<
class
...
Args
>
void
emplace
(
Args
&&
...
args
);
void
clear
();
void
cancel
();
};
#define run_and_notify(block) \
mutex_guard g(this->lock); \
block \
pthread_cond_signal(&this->cond);
template
<
typename
T
>
blocking_queue
<
T
>::~
blocking_queue
()
{
pthread_mutex_destroy
(
&
lock
);
pthread_cond_destroy
(
&
cond
);
}
template
<
typename
T
>
T
blocking_queue
<
T
>::
take
()
{
mutex_guard
g
(
lock
);
cancelled
=
false
;
while
(
deque
.
empty
()
&&
!
cancelled
)
pthread_cond_wait
(
&
cond
,
&
lock
);
if
(
cancelled
)
pthread_exit
(
nullptr
);
T
ret
(
std
::
move
(
deque
.
front
()));
deque
.
pop_front
();
return
ret
;
}
template
<
typename
T
>
void
blocking_queue
<
T
>::
push
(
const
T
&
s
)
{
run_and_notify
({
deque
.
push_back
(
s
);
})
}
template
<
typename
T
>
void
blocking_queue
<
T
>::
push
(
T
&&
s
)
{
run_and_notify
({
deque
.
push_back
(
std
::
move
(
s
));
})
}
template
<
typename
T
>
T
&
blocking_queue
<
T
>::
front
()
const
{
mutex_guard
g
(
lock
);
return
deque
.
front
();
}
template
<
typename
T
>
T
&
blocking_queue
<
T
>::
back
()
const
{
mutex_guard
g
(
lock
);
return
deque
.
back
();
}
template
<
typename
T
>
template
<
class
...
Args
>
void
blocking_queue
<
T
>::
emplace
(
Args
&&
...
args
)
{
run_and_notify
({
deque
.
emplace_back
(
std
::
forward
<
Args
>
(
args
)...);
})
}
template
<
typename
T
>
void
blocking_queue
<
T
>::
clear
()
{
mutex_guard
g
(
lock
);
std
::
deque
<
T
>
t
;
deque
.
swap
(
t
);
}
template
<
typename
T
>
void
blocking_queue
<
T
>::
cancel
()
{
run_and_notify
({
cancelled
=
true
;
std
::
deque
<
T
>
t
;
deque
.
swap
(
t
);
})
}
#undef run_and_notify
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