From 8f01c9a51e32891b862489e4082d2c20aa1fc883 Mon Sep 17 00:00:00 2001
From: Joel Klinghed <the_jk@yahoo.com>
Date: Tue, 9 Jun 2015 00:21:45 +0200
Subject: Improve sender and sender_client

1) Add sockguard in sockutils.hh to help with closing sockets
2) Make sender fork in background
3) Make sender_client start a sender if needed (and sender_bin specified in config)
---
 src/sockutils.cc | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

(limited to 'src/sockutils.cc')

diff --git a/src/sockutils.cc b/src/sockutils.cc
index 53e3ef0..1bca300 100644
--- a/src/sockutils.cc
+++ b/src/sockutils.cc
@@ -1,6 +1,8 @@
 #include "common.hh"
 
 #include <fcntl.h>
+#include <sys/time.h>
+#include <unistd.h>
 
 #include "sockutils.hh"
 
@@ -20,4 +22,38 @@ bool make_nonblocking(int sock) {
     return true;
 }
 
+bool calc_timeout(const struct timeval* target, struct timeval* timeout) {
+    gettimeofday(timeout, nullptr);
+    if (target->tv_sec == timeout->tv_sec) {
+        timeout->tv_sec = 0;
+        if (target->tv_usec >= timeout->tv_usec) {
+            timeout->tv_usec = target->tv_usec - timeout->tv_usec;
+        } else {
+            return false;
+        }
+    } else if (target->tv_sec > timeout->tv_sec) {
+        timeout->tv_sec = target->tv_sec - timeout->tv_sec;
+        if (target->tv_usec >= timeout->tv_usec) {
+            timeout->tv_usec = target->tv_usec - timeout->tv_usec;
+        } else {
+            timeout->tv_sec--;
+            timeout->tv_usec = 1000000l + target->tv_usec - timeout->tv_usec;
+        }
+    } else {
+        return false;
+    }
+    return true;
+}
+
+// static
+void sockguard::close(int sock) {
+    ::close(sock);
+}
+
 }  // namespace stuff
+
+namespace std {
+void swap(stuff::sockguard& s1, stuff::sockguard& s2) noexcept {
+    s1.swap(s2);
+}
+}  // namespace std
-- 
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