FileSystem: mutualize the open64() selection

Author: illwieckz

src/common/FileSystem.cpp

@@ -28,6 +28,11 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 ===========================================================================
 */
 
+#if defined(_WIN32)
+#elif defined(__linux__) && defined(__GLIBC__)
+#define DAEMON_OPEN64
+#endif
+
 #if defined(BUILD_ENGINE)
 #include "minizip/unzip.h"
 #endif
@@ -175,6 +180,7 @@ enum class openMode_t {
 	MODE_APPEND,
 	MODE_EDIT
 };
+
 inline int my_open(Str::StringRef path, openMode_t mode)
 {
 	int mode_ = Util::ordinal(mode);
@@ -192,7 +198,7 @@ inline int my_open(Str::StringRef path, openMode_t mode)
 	int fd = _open_osfhandle(reinterpret_cast<intptr_t>(h), modes[mode_] | O_BINARY | O_NOINHERIT);
 	if (fd == -1)
 		CloseHandle(h);
-#elif defined(__linux__) && defined(__GLIBC__)
+#elif defined(DAEMON_OPEN64)
 	int fd = open64(path.c_str(), modes[mode_] | O_CLOEXEC | O_LARGEFILE, 0666);
 #else
 	// This doesn't actually work in Native Client, but it's not used anyways.
@@ -236,7 +242,7 @@ inline offset_t my_ftell(FILE* fd)
 {
 #ifdef _WIN32
 	return _ftelli64(fd);
-#elif defined(__linux__) && defined(__GLIBC__)
+#elif defined(DAEMON_OPEN64)
 	return ftello64(fd);
 #else
 	return ftello(fd);
@@ -246,15 +252,15 @@ inline int my_fseek(FILE* fd, offset_t off, int whence)
 {
 #ifdef _WIN32
 	return _fseeki64(fd, off, whence);
-#elif defined(__linux__) && defined(__GLIBC__)
+#elif defined(DAEMON_OPEN64)
 	return fseeko64(fd, off, whence);
 #else
 	return fseeko(fd, off, whence);
 #endif
 }
 #ifdef _WIN32
 typedef struct _stati64 my_stat_t;
-#elif defined(__linux__) && defined(__GLIBC__)
+#elif defined(DAEMON_OPEN64)
 using my_stat_t = struct stat64;
 #else
 using my_stat_t = struct stat;
@@ -263,7 +269,7 @@ inline int my_fstat(int fd, my_stat_t* st)
 {
 #ifdef _WIN32
 	return _fstati64(fd, st);
-#elif defined(__linux__) && defined(__GLIBC__)
+#elif defined(DAEMON_OPEN64)
 	return fstat64(fd, st);
 #else
 	return fstat(fd, st);
@@ -273,7 +279,7 @@ inline int my_stat(Str::StringRef path, my_stat_t* st)
 {
 #ifdef _WIN32
 	return _wstati64(Str::UTF8To16(path).c_str(), st);
-#elif defined(__linux__) && defined(__GLIBC__)
+#elif defined(DAEMON_OPEN64)
 	return stat64(path.c_str(), st);
 #else
 	return stat(path.c_str(), st);
@@ -292,7 +298,7 @@ inline intptr_t my_pread(int fd, void* buf, size_t count, offset_t offset)
 		return -1;
 	}
 	return bytesRead;
-#elif defined(__linux__) && defined(__GLIBC__)
+#elif defined(DAEMON_OPEN64)
 	return pread64(fd, buf, count, offset);
 #else
 	return pread(fd, buf, count, offset);