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cmake: optimize non-blocking tests on WIN32/non-WIN32

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Skip testing unixy methods on Windows and vice versa.

I continue to assume that CMake doesn't define `WIN32` with Cygwin
(as Cygwin doesn't define `_WIN32`/`WIN32` for C), though I haven't
tested this.

Closes #970
This commit is contained in:
Viktor Szakats
2023-04-15 16:15:04 +00:00
parent 0a500b3554
commit f1e80d8d8c
1 changed files with 14 additions and 8 deletions
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22
cmake/CheckNonblockingSocketSupport.cmake
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@ -27,7 +27,8 @@ include(CheckCSourceCompiles)
macro(check_nonblocking_socket_support) macro(check_nonblocking_socket_support)
# There are two known platforms (AIX 3.x and SunOS 4.1.x) where the # There are two known platforms (AIX 3.x and SunOS 4.1.x) where the
# O_NONBLOCK define is found but does not work. # O_NONBLOCK define is found but does not work.
check_c_source_compiles(" if(NOT WIN32)
check_c_source_compiles("
#include <sys/types.h> #include <sys/types.h>
#include <unistd.h> #include <unistd.h>
#include <fcntl.h> #include <fcntl.h>
@ -52,10 +53,12 @@ int main(void)
int socket = 0; int socket = 0;
(void)fcntl(socket, F_SETFL, O_NONBLOCK); (void)fcntl(socket, F_SETFL, O_NONBLOCK);
}" }"
HAVE_O_NONBLOCK) HAVE_O_NONBLOCK)
endif()
if(NOT HAVE_O_NONBLOCK) if(NOT HAVE_O_NONBLOCK)
check_c_source_compiles("/* FIONBIO test (old-style unix) */ if(NOT WIN32)
check_c_source_compiles("/* FIONBIO test (old-style unix) */
#include <unistd.h> #include <unistd.h>
#include <stropts.h> #include <stropts.h>
@ -65,10 +68,12 @@ int main(void)
int flags = 0; int flags = 0;
(void)ioctl(socket, FIONBIO, &flags); (void)ioctl(socket, FIONBIO, &flags);
}" }"
HAVE_FIONBIO) HAVE_FIONBIO)
endif()
if(NOT HAVE_FIONBIO) if(NOT HAVE_FIONBIO)
check_c_source_compiles("/* ioctlsocket test (Windows) */ if(WIN32)
check_c_source_compiles("/* ioctlsocket test (Windows) */
#undef inline #undef inline
#ifndef WIN32_LEAN_AND_MEAN #ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN #define WIN32_LEAN_AND_MEAN
@ -82,7 +87,8 @@ int main(void)
unsigned long flags = 0; unsigned long flags = 0;
(void)ioctlsocket(sd, FIONBIO, &flags); (void)ioctlsocket(sd, FIONBIO, &flags);
}" }"
HAVE_IOCTLSOCKET) HAVE_IOCTLSOCKET)
endif()
if(NOT HAVE_IOCTLSOCKET) if(NOT HAVE_IOCTLSOCKET)
check_c_source_compiles("/* IoctlSocket test (Amiga?) */ check_c_source_compiles("/* IoctlSocket test (Amiga?) */
@ -93,7 +99,7 @@ int main(void)
int socket = 0; int socket = 0;
(void)IoctlSocket(socket, FIONBIO, (long)1); (void)IoctlSocket(socket, FIONBIO, (long)1);
}" }"
HAVE_IOCTLSOCKET_CASE) HAVE_IOCTLSOCKET_CASE)
if(NOT HAVE_IOCTLSOCKET_CASE) if(NOT HAVE_IOCTLSOCKET_CASE)
check_c_source_compiles("/* SO_NONBLOCK test (BeOS) */ check_c_source_compiles("/* SO_NONBLOCK test (BeOS) */
@ -105,7 +111,7 @@ int main(void)
int socket = 0; int socket = 0;
(void)setsockopt(socket, SOL_SOCKET, SO_NONBLOCK, &b, sizeof(b)); (void)setsockopt(socket, SOL_SOCKET, SO_NONBLOCK, &b, sizeof(b));
}" }"
HAVE_SO_NONBLOCK) HAVE_SO_NONBLOCK)
if(NOT HAVE_SO_NONBLOCK) if(NOT HAVE_SO_NONBLOCK)
# No non-blocking socket method found # No non-blocking socket method found