CURLMOPT_MAX_CONCURRENT_STREAMS: new setopt

Closes #4410

1 files changed, 6 insertions, 0 deletions

diff --git a/include/curl/multi.h b/include/curl/multi.h
index 02df0f389..b39218395 100644
--- a/include/curl/multi.h
+++ b/include/curl/multi.h
@@ -396,6 +396,9 @@ typedef enum {
   /* This is the argument passed to the server push callback */
   CINIT(PUSHDATA, OBJECTPOINT, 15),
 
+  /* maximum number of concurrent streams to support on a connection */
+  CINIT(MAX_CONCURRENT_STREAMS, LONG, 16),
+
   CURLMOPT_LASTENTRY /* the last unused */
 } CURLMoption;
 
@@ -448,6 +451,9 @@ typedef int (*curl_push_callback)(CURL *parent,
                                   struct curl_pushheaders *headers,
                                   void *userp);
 
+/* value for MAXIMUM CONCURRENT STREAMS upper limit */
+#define INITIAL_MAX_CONCURRENT_STREAMS ((1U << 31) - 1)
+
 #ifdef __cplusplus
 } /* end of extern "C" */
 #endif