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event/SocketEvent: rename Steal() to ReleaseSocket()

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This commit is contained in:
Max Kellermann 2020-10-15 16:52:36 +02:00
parent 95bb12880d
commit ff6e434caf
4 changed files with 11 additions and 23 deletions
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4
src/db/plugins/ProxyDatabasePlugin.cxx
View File

@ -573,7 +573,7 @@ ProxyDatabase::Disconnect() noexcept
assert(connection != nullptr);
idle_event.Cancel();
socket_event.Steal();
socket_event.ReleaseSocket();
mpd_connection_free(connection);
connection = nullptr;
@ -634,7 +634,7 @@ ProxyDatabase::OnIdle() noexcept
LogError(std::current_exception());
}
socket_event.Steal();
socket_event.ReleaseSocket();
mpd_connection_free(connection);
connection = nullptr;
return;

10
src/event/SocketEvent.cxx
View File

@ -37,16 +37,6 @@ SocketEvent::Open(SocketDescriptor _fd) noexcept
fd = _fd;
}
SocketDescriptor
SocketEvent::Steal() noexcept
{
assert(IsDefined());
Cancel();
return std::exchange(fd, SocketDescriptor::Undefined());
}
void
SocketEvent::Close() noexcept
{

11
src/event/SocketEvent.hxx
View File

@ -109,13 +109,12 @@ public:
return fd;
}
void Open(SocketDescriptor _fd) noexcept;
SocketDescriptor ReleaseSocket() noexcept {
Cancel();
return std::exchange(fd, SocketDescriptor::Undefined());
}
/**
* "Steal" the socket descriptor. This abandons the socket
* and returns it.
*/
SocketDescriptor Steal() noexcept;
void Open(SocketDescriptor _fd) noexcept;
void Close() noexcept;

9
src/lib/nfs/Connection.cxx
View File

@ -403,8 +403,7 @@ NfsConnection::DestroyContext() noexcept
new leases */
defer_new_lease.Cancel();
if (socket_event.IsDefined())
socket_event.Steal();
socket_event.ReleaseSocket();
callbacks.ForEach([](CancellableCallback &c){
c.PrepareDestroyContext();
@ -434,14 +433,14 @@ NfsConnection::ScheduleSocket() noexcept
const int which_events = nfs_which_events(context);
if (which_events == POLLOUT && socket_event.IsDefined())
if (which_events == POLLOUT)
/* kludge: if libnfs asks only for POLLOUT, it means
that it is currently waiting for the connect() to
finish - rpc_reconnect_requeue() may have been
called from inside nfs_service(); we must now
unregister the old socket and register the new one
instead */
socket_event.Steal();
socket_event.ReleaseSocket();
if (!socket_event.IsDefined()) {
SocketDescriptor _fd(nfs_get_fd(context));
@ -495,7 +494,7 @@ NfsConnection::OnSocketReady(unsigned flags) noexcept
which is a sure sign that libnfs will close the
socket, which can lead to a race condition if
epoll_ctl() is called later */
socket_event.Steal();
socket_event.ReleaseSocket();
const int result = Service(flags);