From: ian <ian>
Date: Sat, 17 May 2008 16:57:06 +0000 (+0000)
Subject: set memory limits
X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ijackson/git?a=commitdiff_plain;h=50d7ea2c0a57d12ed36cdee9b6dc21c3582648d7;p=trains.git

set memory limits
---

diff --git a/hostside/rtprio.c b/hostside/rtprio.c
index ac6b49e..df3a2b7 100644
--- a/hostside/rtprio.c
+++ b/hostside/rtprio.c
@@ -13,11 +13,20 @@
 
 /*---------- !ALL(MEM): prevent us eating all RAM ----------*/
 
-static void rtf_limit_MEM(void) { }
+static void rtf_limit_MEM(void) {
+  int r;
+  struct rlimit64 rl;
+  r= getrlimit64(RLIMIT_MEMLOCK,&rl);  if (r) diee("getrlimit RLIMIT_MEMLOCK");
+  rl.rlim_cur= 4*1024*1024;
+  r= setrlimit64(RLIMIT_MEMLOCK,&rl);  if (r) diee("setrlimit RLIMIT_MEMLOCK");
+}
 
 /*---------- MEM: lock us into memory ----------*/
 
-static void rtf_acquire_MEM(void) { }
+static void rtf_acquire_MEM(void) {
+  int r;
+  r= mlockall(MCL_CURRENT|MCL_FUTURE);  if (r) diee("mlockall");
+}
 
 /*---------- !ALL(CPU): use SIGXCPU to detect us spinning ----------*/