1 files changed, 59 insertions, 0 deletions
diff --git a/sdk/other/memreq.c b/sdk/other/memreq.c
new file mode 100644
index 0000000..16f8433
--- /dev/null
+++ b/sdk/other/memreq.c
@@ -0,0 +1,59 @@
+/*
+ * Copy strings and objects into a memory pool.
+ * $Id$
+ * Copyright (c) 1997 by Tycho Softworks.
+ * For conditions of distribution and reuse see product license.
+ */
+
+#include <other/memory.h>
+#include <std/math.h>
+
+static	void	*memrequest(MEMPOOL *mem, MEMPAGE *page, size_t len)
+{	
+	int	psize = mem->mem_psize;
+	void	*obj;
+
+	/* align objects to ptr field size */
+
+	len = align(len, __OBJALIGN);
+
+	if(len > mem->mem_psize)
+		return (*mem->mem_pfault)(mem, len);
+
+	while(page)
+	{
+		if(page->page_used + len <= psize)	
+		{
+			obj = &page->page[page->page_used];
+			page->page_used += len;
+			return obj;
+		}
+		page = page->page_next;
+	}
+	
+	if(mem->mem_pused >= mem->mem_pcount)
+		return (*mem->mem_pfault)(mem, len);
+		
+	++mem->mem_pused;
+	page = (MEMPAGE *)malloc(psize + sizeof(MEMPAGE));
+	if(!page)
+		return (*mem->mem_pfault)(mem, len);
+	
+	mem->mem_last->page_next = page;
+	mem->mem_last = page;	
+	page->page_used = len;
+	page->page_next = NULL;
+	return page->page;	
+}
+
+void	*memlreq(MEMPOOL *mem, size_t len)
+{
+	return memrequest(mem, mem->mem_last, len);
+}
+
+void	*memreq(MEMPOOL *mem, size_t len)
+{
+	return memrequest(mem, memfirst(mem), len);
+} 
+	
+