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-rw-r--r--src/serialize.h12
1 files changed, 12 insertions, 0 deletions
diff --git a/src/serialize.h b/src/serialize.h
index 6952004e2e..38c533d9ae 100644
--- a/src/serialize.h
+++ b/src/serialize.h
@@ -38,6 +38,18 @@ typedef unsigned long long uint64;
#define munlock(p, n) VirtualUnlock((p), (n));
#else
#include <sys/mman.h>
+#include <limits.h>
+/* This comes from limits.h if it's not defined there set a sane default */
+#ifndef PAGESIZE
+#include <unistd.h>
+#define PAGESIZE sysconf(_SC_PAGESIZE)
+#endif
+#define mlock(a,b) \
+ mlock(((void *)(((size_t)(a)) & (~((PAGESIZE)-1)))),\
+ (((((size_t)(a)) + (b) - 1) | ((PAGESIZE) - 1)) + 1) - (((size_t)(a)) & (~((PAGESIZE) - 1))))
+#define munlock(a,b) \
+ munlock(((void *)(((size_t)(a)) & (~((PAGESIZE)-1)))),\
+ (((((size_t)(a)) + (b) - 1) | ((PAGESIZE) - 1)) + 1) - (((size_t)(a)) & (~((PAGESIZE) - 1))))
#endif
class CScript;