From 2c1308daf3cc8975c9f5466de545a49bc634506d Mon Sep 17 00:00:00 2001
From: Dan Bond <danbondd@users.noreply.github.com>
Date: Fri, 30 Jun 2017 15:44:21 +0100
Subject: [PATCH] Fix concurrency bug (#10)

---
 vape.go | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/vape.go b/vape.go
index 0b54df9..7ad5b18 100644
--- a/vape.go
+++ b/vape.go
@@ -42,16 +42,18 @@ func NewVape(client HTTPClient, baseURL *url.URL, resCh chan CheckResult, errCh
 // Process takes a list of URIs and concurrently performs a smoke test on each.
 func (v Vape) Process(statusCodeChecks StatusCodeChecks) {
 	// TODO: limit the numer of concurrent requests so we don't DoS the server
-	for _, check := range statusCodeChecks {
-		go func(check StatusCodeCheck) {
-			result, err := v.performCheck(check)
-			if err != nil {
-				v.errCh <- err
-				return
-			}
-			v.resCh <- result
-		}(check)
-	}
+	go func() {
+		for _, check := range statusCodeChecks {
+			go func(check StatusCodeCheck) {
+				result, err := v.performCheck(check)
+				if err != nil {
+					v.errCh <- err
+					return
+				}
+				v.resCh <- result
+			}(check)
+		}
+	}()
 }
 
 // performCheck checks the status code of a HTTP request of a given URI.