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Wrap poll()/WSAPoll() in a function and build compiled library on Windows (#2107)

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* Wrap poll()/WSAPoll() in a function

Instead of using a macro for poll() on Windows, which breaks when the
implementation is compiled separately, add a detail::poll_wrapper()
function that dispatches to either ::poll() or ::WSAPoll().

* Build compiled library on Windows
This commit is contained in:
Florian Albrechtskirchinger 2025-03-12 17:12:03 +01:00 • committed by GitHub
parent a9ba0a4dff
commit 2f39723d08
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GPG key ID: B5690EEEBB952194
2 changed files with 22 additions and 7 deletions
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19
httplib.h
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@ -192,9 +192,9 @@ using ssize_t = long;
#define WSA_FLAG_NO_HANDLE_INHERIT 0x80
#endif
using nfds_t = unsigned long;
using socket_t = SOCKET;
using socklen_t = int;
#define poll(fds, nfds, timeout) WSAPoll(fds, nfds, timeout)
#else // not _WIN32
@ -3240,6 +3240,14 @@ inline ssize_t send_socket(socket_t sock, const void *ptr, size_t size,
});
}
inline int poll_wrapper(struct pollfd *fds, nfds_t nfds, int timeout) {
#ifdef _WIN32
return ::WSAPoll(fds, nfds, timeout);
#else
return ::poll(fds, nfds, timeout);
#endif
}
template <bool Read>
inline ssize_t select_impl(socket_t sock, time_t sec, time_t usec) {
struct pollfd pfd;
@ -3248,7 +3256,7 @@ inline ssize_t select_impl(socket_t sock, time_t sec, time_t usec) {
auto timeout = static_cast<int>(sec * 1000 + usec / 1000);
return handle_EINTR([&]() { return poll(&pfd, 1, timeout); });
return handle_EINTR([&]() { return poll_wrapper(&pfd, 1, timeout); });
}
inline ssize_t select_read(socket_t sock, time_t sec, time_t usec) {
@ -3267,7 +3275,8 @@ inline Error wait_until_socket_is_ready(socket_t sock, time_t sec,
auto timeout = static_cast<int>(sec * 1000 + usec / 1000);
auto poll_res = handle_EINTR([&]() { return poll(&pfd_read, 1, timeout); });
auto poll_res =
handle_EINTR([&]() { return poll_wrapper(&pfd_read, 1, timeout); });
if (poll_res == 0) { return Error::ConnectionTimeout; }
@ -10367,8 +10376,4 @@ inline SSL_CTX *Client::ssl_context() const {
} // namespace httplib
#ifdef _WIN32
#undef poll
#endif
#endif // CPPHTTPLIB_HTTPLIB_H