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Enable use of sendfile
[exim.git]
/
src
/
OS
/
os.h-Linux
diff --git
a/src/OS/os.h-Linux
b/src/OS/os.h-Linux
index 6400e798e24cfd53b2333cdc5b239ca278e442ce..3e9303cab8a28a36403b8b0a91c2b8529c87636c 100644
(file)
--- a/
src/OS/os.h-Linux
+++ b/
src/OS/os.h-Linux
@@
-18,9
+18,10
@@
with the issue. */
/* When using the DKIM, setting HAVE_LINUX_SENDFILE can increase
performance on outgoing mail a bit. Note: With older glibc versions
this setting will conflict with the _FILE_OFFSET_BITS=64 setting
/* When using the DKIM, setting HAVE_LINUX_SENDFILE can increase
performance on outgoing mail a bit. Note: With older glibc versions
this setting will conflict with the _FILE_OFFSET_BITS=64 setting
-defined as part of the Linux CFLAGS. */
+defined as part of the Linux CFLAGS. As of 2017 those are declared
+to be too old to build by default. */
-/* #define HAVE_LINUX_SENDFILE */
+#define HAVE_LINUX_SENDFILE
#define F_FREESP O_TRUNC
typedef struct flock flock_t;
#define F_FREESP O_TRUNC
typedef struct flock flock_t;
@@
-69,5
+70,11
@@
then change the 0 to 1 in the next block. */
# define EXIM_HAVE_OPENAT
#endif
# define EXIM_HAVE_OPENAT
#endif
+#include <netinet/tcp.h> /* for TCP_FASTOPEN */
+#include <sys/socket.h> /* for MSG_FASTOPEN */
+#if defined(TCP_FASTOPEN) && !defined(MSG_FASTOPEN)
+# define MSG_FASTOPEN 0x20000000
+#endif
+
/* End */
/* End */