--- libaitio/src/exec.c	2013/12/05 15:56:10	1.1.2.7
+++ libaitio/src/exec.c	2013/12/05 16:57:08	1.1.2.8
@@ -116,7 +116,7 @@ io_progOpen(prog_t * __restrict prg, u_int execNum)
 
 	if (!prg)
 		return 0;
-	if (execNum > prg->prog_maxn) {
+	if (prg->prog_cnum + execNum > prg->prog_maxn) {
 		io_SetErr(EINVAL, "Requested number for program execution is over pool's limit");
 		return 0;
 	}
@@ -142,6 +142,28 @@ io_progOpen(prog_t * __restrict prg, u_int execNum)
 	pthread_mutex_unlock(&prg->prog_mtx);
 
 	return ret;
+}
+
+/*
+ * io_progGrow() - Execute to number of programs in pool
+ *
+ * @prg = program pool
+ * @toNum = execute to number of programs (0 max)
+ * return: 0 error, >0 executed programs and abs(<0) executed programs with logged error
+ */
+int
+io_progGrow(prog_t * __restrict prg, u_int toNum)
+{
+	if (!prg)
+		return 0;
+	if (toNum > prg->prog_maxn) {
+		io_SetErr(EINVAL, "Requested number for program execution is over pool's limit");
+		return 0;
+	}
+	if (!toNum)
+		toNum = prg->prog_maxn;
+
+	return io_progOpen(prg, toNum - prg->prog_cnum);
 }
 
 /*