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Added comment for Win32 SO_RESUSEADDR

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Sergey Lyubka 2014-06-13 10:19:46 +01:00
parent 29f4703e4f
commit 203688a34b
1 changed files with 6 additions and 0 deletions
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mongoose.c
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@ -548,6 +548,12 @@ static sock_t ns_open_listening_socket(union socket_address *sa) {
if ((sock = socket(sa->sa.sa_family, SOCK_STREAM, 6)) != INVALID_SOCKET &&
#ifndef _WIN32
// SO_RESUSEADDR is not enabled on Windows because the semantics of
// SO_REUSEADDR on UNIX and Windows is different. On Windows,
// SO_REUSEADDR allows to bind a socket to a port without error even if
// the port is already open by another program. This is not the behavior
// SO_REUSEADDR was designed for, and leads to hard-to-track failure
// scenarios. Therefore, SO_REUSEADDR was disabled on Windows.
!setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, (void *) &on, sizeof(on)) &&
#endif
!bind(sock, &sa->sa, sa->sa.sa_family == AF_INET ?