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Fix select / fdset usage on Windows

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These functions use `SOCKET` not `int`, despite them being unix
functions.
This commit is contained in:
John Ericson 2025-12-17 12:25:25 -05:00
parent 79750a3ccc
commit 208ed3c538
2 changed files with 11 additions and 10 deletions
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10
src/libutil/serialise.cc
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@ -1,6 +1,7 @@
#include "nix/util/serialise.hh"
#include "nix/util/compression.hh"
#include "nix/util/signals.hh"
#include "nix/util/socket.hh"
#include "nix/util/util.hh"
#include <cstring>
@ -11,7 +12,6 @@
#ifdef _WIN32
# include <fileapi.h>
# include <winsock2.h>
# include "nix/util/windows-error.hh"
#else
# include <poll.h>
@ -184,20 +184,20 @@ bool FdSource::hasData()
while (true) {
fd_set fds;
FD_ZERO(&fds);
int fd_ = fromDescriptorReadOnly(fd);
FD_SET(fd_, &fds);
Socket sock = toSocket(fd);
FD_SET(sock, &fds);
struct timeval timeout;
timeout.tv_sec = 0;
timeout.tv_usec = 0;
auto n = select(fd_ + 1, &fds, nullptr, nullptr, &timeout);
auto n = select(sock + 1, &fds, nullptr, nullptr, &timeout);
if (n < 0) {
if (errno == EINTR)
continue;
throw SysError("polling file descriptor");
}
return FD_ISSET(fd, &fds);
return FD_ISSET(sock, &fds);
}
}