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authorRob Pike <r@golang.org>2009-06-09 09:53:44 -0700
committerRob Pike <r@golang.org>2009-06-09 09:53:44 -0700
commit7249ea4df2b4f12a4e7ed446f270cea87e4ffd34 (patch)
tree7032a11d0cac2ae4d3e90f7a189b575b5a50f848 /src/pkg/io/utils.go
parentacf6ef7a82b3fe61516a1bac4563706552bdf078 (diff)
downloadgolang-7249ea4df2b4f12a4e7ed446f270cea87e4ffd34.tar.gz
mv src/lib to src/pkg
tests: all.bash passes, gobuild still works, godoc still works. R=rsc OCL=30096 CL=30102
Diffstat (limited to 'src/pkg/io/utils.go')
-rw-r--r--src/pkg/io/utils.go29
1 files changed, 29 insertions, 0 deletions
diff --git a/src/pkg/io/utils.go b/src/pkg/io/utils.go
new file mode 100644
index 000000000..a4cbb2d9a
--- /dev/null
+++ b/src/pkg/io/utils.go
@@ -0,0 +1,29 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// Utility functions.
+
+package io
+
+import (
+ "io";
+ "os";
+)
+
+// ReadAll reads from r until an error or EOF and returns the data it read.
+func ReadAll(r Reader) ([]byte, os.Error) {
+ var buf ByteBuffer;
+ n, err := io.Copy(r, &buf);
+ return buf.Data(), err;
+}
+
+// ReadFile reads the file named by filename and returns the contents.
+func ReadFile(filename string) ([]byte, os.Error) {
+ f, err := os.Open(filename, os.O_RDONLY, 0);
+ if err != nil {
+ return nil, err;
+ }
+ defer f.Close();
+ return ReadAll(f);
+}