diff options
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); |