selfcare init

proxy_go/public/go-oi@v1.0.0/longwritestring.go

@@ -0,0 +1,39 @@
+package oi
+
+
+import (
+	"io"
+)
+
+
+// LongWriteString tries to write the bytes from 's' to the writer 'w', such that it deals
+// with "short writes" where w.Write (or w.WriteString) would return an error of io.ErrShortWrite
+// and n < len(s).
+//
+// Note that LongWriteString still could return the error io.ErrShortWrite; but this
+// would only be after trying to handle the io.ErrShortWrite a number of times, and
+// then eventually giving up.
+func LongWriteString(w io.Writer, s string) (int64, error) {
+
+	numWritten := int64(0)
+	for {
+//@TODO: Should check to make sure this doesn't get stuck in an infinite loop writting nothing!
+		n, err := io.WriteString(w, s)
+		numWritten += int64(n)
+		if nil != err && io.ErrShortWrite != err {
+			return numWritten, err
+		}
+
+		if !(n < len(s)) {
+			break
+		}
+
+		s = s[n:]
+
+		if len(s) < 1 {
+			break
+		}
+	}
+
+	return numWritten, nil
+}