X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=fd.c;h=c5a37cdd2a4e5c28437df2fbbf3b44b313ac0636;hp=81ba5cffb7e6919ec7eca5d4fdfd9d0aecc92f61;hb=446f934790d9d60b4aaa63faa41217fa8134a4be;hpb=83632cf4e091d02defa4646eaeb38e5decab52f1

diff --git a/fd.c b/fd.c
index 81ba5cff..c5a37cdd 100644
--- a/fd.c
+++ b/fd.c
@@ -19,6 +19,10 @@
 /** \file fd.c helper functions for file descriptor handling */
 
 #include "para.h"
+
+#include <fcntl.h>
+#include <sys/select.h>
+
 #include "error.h"
 /**
  * check whether a file exists
@@ -81,3 +85,18 @@ int mark_fd_nonblock(int fd)
 	return 1;
 }
 
+/**
+ * set a file descriptor in a fd_set
+ *
+ * \param fd the file descriptor to be set
+ * \param fds the file descriptor set
+ * \param max_fileno highest-numbered file descriptor
+ *
+ * This wrapper for FD_SET() passes its first two arguments to \p FD_SET. Upon
+ * return, \a max_fileno contains the maximum of the old_value and \a fd.
+*/
+void para_fd_set(int fd, fd_set *fds, int *max_fileno)
+{
+	FD_SET(fd, fds);
+	*max_fileno = PARA_MAX(*max_fileno, fd);
+}