parallel-max: bump the max value to 65535

When doing HTTP/2 and HTTP/3, it is possible to achieve quite a massive
parallelism so limiting this to 300 seems restrictive.

With other protocols, going beyond 300-400 might not be recommended but
curl does not have to enforce the limit.

Closes #18068

diff --git a/docs/cmdline-opts/parallel-max.md b/docs/cmdline-opts/parallel-max.md
index 6b3684b8f2fa40b4b2806f761b98d3a846ddda5c..fc5470eb02969ea36b1e81ecea83654c681a9577 100644 (file)
--- a/docs/cmdline-opts/parallel-max.md
+++ b/docs/cmdline-opts/parallel-max.md
@@ -19,4 +19,4 @@ Example:
 When asked to do parallel transfers, using --parallel, this option controls
 the maximum amount of transfers to do simultaneously.
 
-The default is 50. 300 is the largest supported value.
+The default is 50. 65535 is the largest supported value.

diff --git a/src/tool_main.h b/src/tool_main.h
index 95d603f4a056281832b2661dd4b2e5b4d2a39874..1e32ee7f8d2ce69f1dcdc12bd9103bd3083503e9 100644 (file)
--- a/src/tool_main.h
+++ b/src/tool_main.h
@@ -30,7 +30,7 @@
 #define RETRY_SLEEP_DEFAULT 1000L   /* ms */
 #define RETRY_SLEEP_MAX     600000L /* ms == 10 minutes */
 
-#define MAX_PARALLEL 300 /* conservative */
+#define MAX_PARALLEL 65535
 #define PARALLEL_DEFAULT 50
 
 #endif /* HEADER_CURL_TOOL_MAIN_H */