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+---
+c: Copyright (C) Daniel Stenberg, <daniel.se>, et al.
+SPDX-License-Identifier: curl
+Title: CURLMOPT_MAX_PIPELINE_LENGTH
+Section: 3
+Source: libcurl
+See-also:
+  - CURLMOPT_MAX_HOST_CONNECTIONS (3)
+  - CURLMOPT_PIPELINING (3)
+---
+
+# NAME
+
+CURLMOPT_MAX_PIPELINE_LENGTH - maximum number of requests in a pipeline
+
+# SYNOPSIS
+
+~~~c
+#include <curl/curl.h>
+
+CURLMcode curl_multi_setopt(CURLM *handle, CURLMOPT_MAX_PIPELINE_LENGTH,
+                            long max);
+~~~
+
+# DESCRIPTION
+
+No function since pipelining was removed in 7.62.0.
+
+Pass a long. The set **max** number is used as the maximum amount of
+outstanding requests in an HTTP/1.1 pipeline. This option is only used for
+HTTP/1.1 pipelining, not for HTTP/2 multiplexing.
+
+When this limit is reached, libcurl creates another connection to the same
+host (see CURLMOPT_MAX_HOST_CONNECTIONS(3)), or queue the request until one
+    of the pipelines to the host is ready to accept a request. Thus, the total
+number of requests in-flight is CURLMOPT_MAX_HOST_CONNECTIONS(3) *
+CURLMOPT_MAX_PIPELINE_LENGTH(3).
+
+# DEFAULT
+
+5
+
+# PROTOCOLS
+
+HTTP(S)
+
+# EXAMPLE
+
+~~~c
+int main(void)
+{
+  CURLM *m = curl_multi_init();
+  /* set a more conservative pipe length */
+  curl_multi_setopt(m, CURLMOPT_MAX_PIPELINE_LENGTH, 3L);
+}
+~~~
+
+# AVAILABILITY
+
+Added in 7.30.0
+
+# RETURN VALUE
+
+Returns CURLM_OK if the option is supported, and CURLM_UNKNOWN_OPTION if not.