lib/nfs/{FileReader,Glue}: pass EventLoop&

Eliminate dependency on io_thread_get().

src/input/plugins/NfsInputPlugin.cxx

@@ -24,6 +24,7 @@
 #include "lib/nfs/Glue.hxx"
 #include "lib/nfs/FileReader.hxx"
 #include "util/StringCompare.hxx"
+#include "IOThread.hxx"
 
 #include <string.h>
 
@@ -49,6 +50,7 @@ public:
 		:AsyncInputStream(_uri, _mutex, _cond,
 				  NFS_MAX_BUFFERED,
 				  NFS_RESUME_AT),
+		 NfsFileReader(io_thread_get()),
 		 reconnect_on_resume(false), reconnecting(false) {}
 
 	virtual ~NfsInputStream() {
@@ -206,7 +208,7 @@ NfsInputStream::OnNfsFileError(std::exception_ptr &&e)
 static void
 input_nfs_init(const ConfigBlock &)
 {
-	nfs_init();
+	nfs_init(io_thread_get());
 }
 
 static void

src/lib/nfs/FileReader.cxx

@@ -23,7 +23,6 @@
 #include "Base.hxx"
 #include "Connection.hxx"
 #include "event/Call.hxx"
-#include "IOThread.hxx"
 #include "util/StringCompare.hxx"
 
 #include <utility>
@@ -33,8 +32,8 @@
 #include <fcntl.h>
 #include <sys/stat.h>
 
-NfsFileReader::NfsFileReader()
+NfsFileReader::NfsFileReader(EventLoop &event_loop)
-	:DeferredMonitor(io_thread_get()), state(State::INITIAL)
+	:DeferredMonitor(event_loop), state(State::INITIAL)
 {
 }
 
@@ -86,7 +85,7 @@ NfsFileReader::CancelOrClose()
 void
 NfsFileReader::DeferClose()
 {
-	BlockingCall(io_thread_get(), [this](){ Close(); });
+	BlockingCall(GetEventLoop(), [this](){ Close(); });
 }
 
 void

src/lib/nfs/FileReader.hxx

@@ -64,9 +64,11 @@ class NfsFileReader : NfsLease, NfsCallback, DeferredMonitor {
 	nfsfh *fh;
 
 public:
-	NfsFileReader();
+	NfsFileReader(EventLoop &event_loop);
 	~NfsFileReader();
 
+	using DeferredMonitor::GetEventLoop;
+
 	void Close();
 	void DeferClose();
 

src/lib/nfs/Glue.cxx

@@ -20,7 +20,6 @@
 #include "config.h"
 #include "Glue.hxx"
 #include "Manager.hxx"
-#include "IOThread.hxx"
 #include "event/Call.hxx"
 #include "util/Manual.hxx"
 
@@ -30,12 +29,12 @@ static Manual<NfsManager> nfs_glue;
 static unsigned in_use;
 
 void
-nfs_init()
+nfs_init(EventLoop &event_loop)
 {
 	if (in_use++ > 0)
 		return;
 
-	nfs_glue.Construct(io_thread_get());
+	nfs_glue.Construct(event_loop);
 }
 
 void
@@ -46,14 +45,13 @@ nfs_finish()
 	if (--in_use > 0)
 		return;
 
-	BlockingCall(io_thread_get(), [](){ nfs_glue.Destruct(); });
+	BlockingCall(nfs_glue->GetEventLoop(), [](){ nfs_glue.Destruct(); });
 }
 
 NfsConnection &
 nfs_get_connection(const char *server, const char *export_name)
 {
 	assert(in_use > 0);
-	assert(io_thread_inside());
 
 	return nfs_glue->GetConnection(server, export_name);
 }

src/lib/nfs/Glue.hxx

@@ -23,10 +23,11 @@
 #include "check.h"
 #include "Compiler.h"
 
+class EventLoop;
 class NfsConnection;
 
 void
-nfs_init();
+nfs_init(EventLoop &event_loop);
 
 void
 nfs_finish();

src/lib/nfs/Manager.hxx

@@ -97,6 +97,8 @@ public:
 	 */
 	~NfsManager();
 
+	using IdleMonitor::GetEventLoop;
+
 	gcc_pure
 	NfsConnection &GetConnection(const char *server,
 				     const char *export_name);

src/storage/plugins/NfsStorage.cxx

@@ -74,7 +74,7 @@ public:
 		 server(std::move(_server)),
 		 export_name(std::move(_export_name)),
 		 state(State::INITIAL) {
-		nfs_init();
+		nfs_init(_loop);
 	}
 
 	~NfsStorage() {