Postgres95 1.01 Distribution - Virgin Sources

src/interfaces/libpgtcl/pgtclId.c

@@ -0,0 +1,51 @@
+/*-------------------------------------------------------------------------
+ *
+ * pgtclId.c--
+ *    useful routines to convert between strings and pointers
+ *  Needed because everything in tcl is a string, but we want pointers
+ *  to data structures
+ *
+ *  ASSUMPTION:  sizeof(long) >= sizeof(void*)
+ *
+ *
+ * Copyright (c) 1994, Regents of the University of California
+ *
+ *
+ * IDENTIFICATION
+ *    $Header: /cvsroot/pgsql/src/interfaces/libpgtcl/Attic/pgtclId.c,v 1.1.1.1 1996/07/09 06:22:16 scrappy Exp $
+ *
+ *-------------------------------------------------------------------------
+ */
+
+#include <stdlib.h>
+#include <string.h>
+#include "tcl.h"
+
+#include "pgtclId.h"
+
+/* convert a pointer into a string */
+void
+PgSetId(char *id, void *ptr)
+{
+  (void) sprintf(id, "pgp%lx", (long) ptr);
+}
+
+
+/* get back a pointer from a string */
+void *
+PgGetId(char *id)
+{
+  long ptr; 
+  ptr = strtol(id+3, NULL, 16);
+  return (void *) ptr;
+}
+
+/* check to see if the string is a valid pgtcl pointer */
+int 
+PgValidId(char* id)
+{
+    if ( (strlen(id) > 3) && id[0]=='p' && id[1] == 'g' && id[2] == 'p')
+	return 1;
+    else
+	return 0;
+}