NixOS/nix
NixOS/nix
1
0
Fork 0
mirror of https://github.com/NixOS/nix synced 2024-09-19 10:50:24 -04:00
Code Activity

select() -> poll() for Windows compat

Browse source
This commit is contained in:
Eelco Dolstra 2024-08-21 20:54:02 +02:00
parent ce7cf4a2d3
commit 270c8469d7
1 changed files with 10 additions and 5 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

15
src/libutil/serialise.cc
View file

@ -165,15 +165,20 @@ bool FdSource::hasData()
if (BufferedSource::hasData()) return true; if (BufferedSource::hasData()) return true;
while (true) { while (true) {
struct pollfd fds[1]; fd_set fds;
fds[0].fd = fd; FD_ZERO(&fds);
fds[0].events = POLLIN; FD_SET(fd, &fds);
auto n = poll(fds, 1, 0);
struct timeval timeout;
timeout.tv_sec = 0;
timeout.tv_usec = 0;
auto n = select(fd + 1, &fds, nullptr, nullptr, &timeout);
if (n < 0) { if (n < 0) {
if (errno == EINTR) continue; if (errno == EINTR) continue;
throw SysError("polling file descriptor"); throw SysError("polling file descriptor");
} }
return n == 1 && (fds[0].events & POLLIN); return FD_ISSET(fd, &fds);
} }
} }