From 509ac16d892aeb5091f68620247f6815d2e4b5f5 Mon Sep 17 00:00:00 2001
From: Nathanael Sensfelder <SpamShield0@MultiAgentSystems.org>
Date: Tue, 31 Jan 2017 16:21:24 +0100
Subject: Switched to sockets, continuing implementation...

---
 src/server/server_wait_for_event.c | 53 ++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 src/server/server_wait_for_event.c

(limited to 'src/server/server_wait_for_event.c')

diff --git a/src/server/server_wait_for_event.c b/src/server/server_wait_for_event.c
new file mode 100644
index 0000000..b229e6b
--- /dev/null
+++ b/src/server/server_wait_for_event.c
@@ -0,0 +1,53 @@
+#include <sys/select.h>
+
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+
+#include "server.h"
+
+int ZoO_server_wait_for_event
+(
+   struct ZoO_server server [const static 1]
+)
+{
+   int ready_fds;
+   const int old_errno = errno;
+
+   /* call to select may alter timeout */
+   memset((void *) &(server->socket.timeout), 0, sizeof(struct timeval));
+
+   server->socket.timeout.tv_sec = ZoO_SERVER_SOCKET_ACCEPT_TIMEOUT_SEC;
+
+   ready_fds = select
+   (
+      (server->socket.file_descriptor + 1),
+      &(server->socket.as_a_set),
+      (fd_set *) NULL,
+      (fd_set *) NULL,
+      &(server->socket.timeout)
+   );
+
+   if (errno == EINTR)
+   {
+      ready_fds = 0;
+   }
+
+   if (ready_fds == -1)
+   {
+      fprintf
+      (
+         stderr,
+         "[F] Unable to wait on server socket: %s.\n",
+         strerror(errno)
+      );
+
+      errno = old_errno;
+
+      return -1;
+   }
+
+   errno = old_errno;
+
+   return ready_fds;
+}
-- 
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