Import sources from 2011-03-30 iso image

1 files changed, 76 insertions, 0 deletions

diff --git a/sys/src/libndb/ndbfree.c b/sys/src/libndb/ndbfree.c
new file mode 100755
index 000000000..d3f27feb5
--- /dev/null
+++ b/sys/src/libndb/ndbfree.c
@@ -0,0 +1,76 @@
+#include <u.h>
+#include <libc.h>
+#include <bio.h>
+#include <ctype.h>
+#include <ndb.h>
+#include "ndbhf.h"
+
+/*
+ *  free a parsed entry
+ */
+void
+ndbfree(Ndbtuple *t)
+{
+	Ndbtuple *tn;
+
+	for(; t; t = tn){
+		tn = t->entry;
+		if(t->val != t->valbuf){
+			free(t->val);
+		}
+		free(t);
+	}
+}
+
+/*
+ *  set a value in a tuple
+ */
+void
+ndbsetval(Ndbtuple *t, char *val, int n)
+{
+	if(n < Ndbvlen){
+		if(t->val != t->valbuf){
+			free(t->val);
+			t->val = t->valbuf;
+		}
+	} else {
+		if(t->val != t->valbuf)
+			t->val = realloc(t->val, n+1);
+		else
+			t->val = malloc(n+1);
+		if(t->val == nil)
+			sysfatal("ndbsetval %r");
+	}
+	strncpy(t->val, val, n);
+	t->val[n] = 0;
+}
+
+/*
+ *  allocate a tuple
+ */
+Ndbtuple*
+ndbnew(char *attr, char *val)
+{
+	Ndbtuple *t;
+
+	t = mallocz(sizeof(*t), 1);
+	if(t == nil)
+		sysfatal("ndbnew %r");
+	if(attr != nil)
+		strncpy(t->attr, attr, sizeof(t->attr)-1);
+	t->val = t->valbuf;
+	if(val != nil)
+		ndbsetval(t, val, strlen(val));
+	ndbsetmalloctag(t, getcallerpc(&attr));
+	return t;	
+}
+
+/*
+ *  set owner of a tuple
+ */
+void
+ndbsetmalloctag(Ndbtuple *t, uintptr tag)
+{
+	for(; t; t=t->entry)
+		setmalloctag(t, tag);
+}