CURLMOPT_MAX_CONCURRENT_STREAMS: new setopt

Closes #4410

1 files changed, 16 insertions, 0 deletions

diff --git a/lib/multi.c b/lib/multi.c
index 22e0dcfd1..6dfe8842e 100755
--- a/lib/multi.c
+++ b/lib/multi.c
@@ -2772,6 +2772,16 @@ CURLMcode curl_multi_setopt(struct Curl_multi *multi,
     break;
   case CURLMOPT_PIPELINING_SERVER_BL:
     break;
+  case CURLMOPT_MAX_CONCURRENT_STREAMS:
+    {
+      long streams = va_arg(param, long);
+      if(streams < 1)
+        streams = 100;
+      multi->max_concurrent_streams =
+          (streams > (long)INITIAL_MAX_CONCURRENT_STREAMS)?
+          (long)INITIAL_MAX_CONCURRENT_STREAMS : streams;
+    }
+    break;
   default:
     res = CURLM_UNKNOWN_OPTION;
     break;
@@ -3210,3 +3220,9 @@ void Curl_multi_dump(struct Curl_multi *multi)
   }
 }
 #endif
+
+size_t Curl_multi_max_concurrent_streams(struct Curl_multi *multi)
+{
+  return multi ? ((size_t)multi->max_concurrent_streams ?
+                  (size_t)multi->max_concurrent_streams : 100) : 0;
+}