From 84ac79bb08696230157912a1d927d35004b12e8c Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Sat, 10 Aug 2013 11:21:38 +0200
Subject: event/MultiSocketMonitor: eliminate virtual method CheckSockets()

Handle timeout internally.
---
 src/event/MultiSocketMonitor.cxx | 16 ++++++++++++++--
 src/event/MultiSocketMonitor.hxx |  8 ++------
 2 files changed, 16 insertions(+), 8 deletions(-)

(limited to 'src/event')

diff --git a/src/event/MultiSocketMonitor.cxx b/src/event/MultiSocketMonitor.cxx
index d8a9ffd6a..3fcc4375c 100644
--- a/src/event/MultiSocketMonitor.cxx
+++ b/src/event/MultiSocketMonitor.cxx
@@ -42,7 +42,8 @@ static GSourceFuncs multi_socket_monitor_source_funcs = {
 MultiSocketMonitor::MultiSocketMonitor(EventLoop &_loop)
 	:loop(_loop),
 	 source((Source *)g_source_new(&multi_socket_monitor_source_funcs,
-				       sizeof(*source))) {
+				       sizeof(*source))),
+	 absolute_timeout_us(G_MAXINT64) {
 	source->monitor = this;
 
 	g_source_attach(&source->base, loop.GetContext());
@@ -55,10 +56,21 @@ MultiSocketMonitor::~MultiSocketMonitor()
 	source = nullptr;
 }
 
+bool
+MultiSocketMonitor::Prepare(gint *timeout_r)
+{
+	int timeout_ms = *timeout_r = PrepareSockets();
+	absolute_timeout_us = timeout_ms < 0
+		? G_MAXINT64
+		: GetTime() + gint64(timeout_ms) * 1000;
+
+	return false;
+}
+
 bool
 MultiSocketMonitor::Check() const
 {
-	if (CheckSockets())
+	if (GetTime() >= absolute_timeout_us)
 		return true;
 
 	for (const auto &i : fds)
diff --git a/src/event/MultiSocketMonitor.hxx b/src/event/MultiSocketMonitor.hxx
index 50be18070..941487534 100644
--- a/src/event/MultiSocketMonitor.hxx
+++ b/src/event/MultiSocketMonitor.hxx
@@ -52,6 +52,7 @@ class MultiSocketMonitor {
 
 	EventLoop &loop;
 	Source *source;
+	gint64 absolute_timeout_us;
 	std::forward_list<GPollFD> fds;
 
 public:
@@ -105,7 +106,6 @@ protected:
 	 * @return timeout [ms] or -1 for no timeout
 	 */
 	virtual int PrepareSockets() = 0;
-	virtual bool CheckSockets() const { return false; }
 	virtual void DispatchSockets() = 0;
 
 public:
@@ -116,11 +116,7 @@ public:
 				 gpointer user_data);
 
 private:
-	bool Prepare(gint *timeout_r) {
-		*timeout_r = PrepareSockets();
-		return false;
-	}
-
+	bool Prepare(gint *timeout_r);
 	bool Check() const;
 
 	void Dispatch() {
-- 
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