diff options
| author | James M Snell <jasnell@gmail.com> | 2020-06-24 00:58:48 +0300 |
|---|---|---|
| committer | James M Snell <jasnell@gmail.com> | 2020-06-24 22:33:15 +0300 |
| commit | 9de95f494e25f3ba8100c54e6263736c2bfe48f0 (patch) | |
| tree | 60ecb6c1c48a7c5c38c137518016f65240976343 /deps | |
| parent | 86e67aaa699cfb028d381b6576234c3d30339801 (diff) | |
deps: temporary fixup for ngtcp2 to build on windows
The ngtcp2 update uses a gcc builtin that is not available under
_MSC_VER. This floats a patch to fix it.
Upstream PR: https://github.com/ngtcp2/ngtcp2/pull/247
PR-URL: https://github.com/nodejs/node/pull/34033
Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Jiawen Geng <technicalcute@gmail.com>
Reviewed-By: Daniel Bevenius <daniel.bevenius@gmail.com>
Diffstat (limited to 'deps')
| -rw-r--r-- | deps/ngtcp2/lib/ngtcp2_cc.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/deps/ngtcp2/lib/ngtcp2_cc.c b/deps/ngtcp2/lib/ngtcp2_cc.c index 9c61a5e9564..3aed4dd759d 100644 --- a/deps/ngtcp2/lib/ngtcp2_cc.c +++ b/deps/ngtcp2/lib/ngtcp2_cc.c @@ -31,6 +31,19 @@ #include "ngtcp2_mem.h" #include "ngtcp2_rcvry.h" +#ifdef _MSC_VER +#include <intrin.h> +static inline int __builtin_clzll(unsigned long long x) { +#if defined(_WIN64) || defined(_LP64) + return (int)__lzcnt64(x); +#else + // TODO(@jasnell): Determine if there's an alternative available for x86 + assert(0); +#endif + +} +#endif + uint64_t ngtcp2_cc_compute_initcwnd(size_t max_udp_payload_size) { uint64_t n = 2 * max_udp_payload_size; n = ngtcp2_max(n, 14720); |