X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=ipc.c;h=89bbe53564e3c678e97b453e38b7c70be8063314;hp=674d1cb01e5fae9c5ae2ecb8f8ceec92fa9faa62;hb=6bcd10bc4ada11a04bc2b7425afe5a8855592cd2;hpb=4a0c8e1fb760134609dcf2c06cd1b9b76953d606

diff --git a/ipc.c b/ipc.c
index 674d1cb0..89bbe535 100644
--- a/ipc.c
+++ b/ipc.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2006-2011 Andre Noll <maan@systemlinux.org>
+ * Copyright (C) 2006-2013 Andre Noll <maan@systemlinux.org>
  *
  * Licensed under the GPL v2. For licencing details see COPYING.
  */
@@ -184,6 +184,15 @@ int shm_detach(void *addr)
 #	undef SYSCTL_SHMMAX_VARIABLE
 # endif
 
+/**
+ * Get the maximal size of a shared memory area.
+ *
+ * The value is only computed once when the function is called for the first
+ * time.  Subsequent calls return the number which was computed during the
+ * first call.
+ *
+ * \return A number suitable as an argument to \ref shm_new().
+ */
 size_t shm_get_shmmax(void)
 {
 	static size_t shmmax;
@@ -200,6 +209,7 @@ size_t shm_get_shmmax(void)
 				buf[ret] = '\0';
 				shmmax = strtoul(buf, NULL, 10);
 			}
+			close(fd);
 		}
 	}
 #elif defined SYSCTL_SHMMAX_VARIABLE
@@ -212,7 +222,7 @@ size_t shm_get_shmmax(void)
 #endif
 	if (shmmax == 0) {
 		PARA_WARNING_LOG("unable to determine shmmax\n");
-		shmmax = 65535; /* last ressort */
+		shmmax = 65535; /* last resort */
 	}
 	PARA_INFO_LOG("shmmax: %zu\n", shmmax);
 	return shmmax;