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fix(build): remove VLA zeroing to fix Clang build (#4052)
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Browse Source
This commit is contained in:
Cameron Gutman
2025-07-06 00:50:34 -05:00
committed by GitHub
parent 7e95d536a9
commit 2a9bb98c6e
1 changed files with 6 additions and 4 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
src/platform/linux/misc.cpp
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@@ -424,7 +424,7 @@ namespace platf {
// UDP GSO on Linux currently only supports sending 64K or 64 segments at a time
size_t seg_index = 0;
const size_t seg_max = 65536 / 1500;
struct iovec iovs[(send_info.headers ? std::min(seg_max, send_info.block_count) : 1) * max_iovs_per_msg] = {};
struct iovec iovs[(send_info.headers ? std::min(seg_max, send_info.block_count) : 1) * max_iovs_per_msg];
auto msg_size = send_info.header_size + send_info.payload_size;
while (seg_index < send_info.block_count) {
int iovlen = 0;
@@ -507,10 +507,11 @@ namespace platf {
{
// If GSO is not supported, use sendmmsg() instead.
struct mmsghdr msgs[send_info.block_count] = {};
struct iovec iovs[send_info.block_count * (send_info.headers ? 2 : 1)] = {};
struct mmsghdr msgs[send_info.block_count];
struct iovec iovs[send_info.block_count * (send_info.headers ? 2 : 1)];
int iov_idx = 0;
for (size_t i = 0; i < send_info.block_count; i++) {
msgs[i].msg_len = 0;
msgs[i].msg_hdr.msg_iov = &iovs[iov_idx];
msgs[i].msg_hdr.msg_iovlen = send_info.headers ? 2 : 1;
@@ -528,6 +529,7 @@ namespace platf {
msgs[i].msg_hdr.msg_namelen = msg.msg_namelen;
msgs[i].msg_hdr.msg_control = cmbuf.buf;
msgs[i].msg_hdr.msg_controllen = cmbuflen;
msgs[i].msg_hdr.msg_flags = 0;
}
// Call sendmmsg() until all messages are sent
@@ -620,7 +622,7 @@ namespace platf {
memcpy(CMSG_DATA(pktinfo_cm), &pktInfo, sizeof(pktInfo));
}
struct iovec iovs[2] = {};
struct iovec iovs[2];
int iovlen = 0;
if (send_info.header) {
iovs[iovlen].iov_base = (void *) send_info.header;