[MEDIUM] splice: add configuration options and set global.maxpipes
Three new options have been added when CONFIG_HAP_LINUX_SPLICE is
set :
- splice-request
- splice-response
- splice-auto
They are used to enable splicing per frontend/backend. They are also
supported in defaults sections. The "splice-auto" option is meant to
automatically turn splice on for buffers marked as fast streamers.
This should save quite a bunch of file descriptors.
It was required to add a new "options2" field to the proxy structure
because the original "options" is full.
When global.maxpipes is not set, it is automatically adjusted to
the max of the sums of all frontend's and backend's maxconns for
those which have at least one splice option enabled.
diff --git a/include/types/proxy.h b/include/types/proxy.h
index 90d5c4e..5d0869c 100644
--- a/include/types/proxy.h
+++ b/include/types/proxy.h
@@ -104,6 +104,13 @@
#define PR_O_CONTSTATS 0x10000000 /* continous counters */
#define PR_O_HTTP_PROXY 0x20000000 /* Enable session to use HTTP proxy operations */
#define PR_O_DISABLE404 0x40000000 /* Disable a server on a 404 response to a health-check */
+/* unused: 0x80000000 */
+
+/* bits for proxy->options2 */
+#define PR_O2_SPLIC_REQ 0x00000001 /* transfer requests using linux kernel's splice() */
+#define PR_O2_SPLIC_RTR 0x00000002 /* transfer responses using linux kernel's splice() */
+#define PR_O2_SPLIC_AUT 0x00000004 /* automatically use linux kernel's splice() */
+#define PR_O2_SPLIC_ANY (PR_O2_SPLIC_REQ|PR_O2_SPLIC_RTR|PR_O2_SPLIC_AUT)
/* This structure is used to apply fast weighted round robin on a server group */
struct fwrr_group {
@@ -121,6 +128,7 @@
struct in_addr mon_net, mon_mask; /* don't forward connections from this net (network order) FIXME: should support IPv6 */
int state; /* proxy state */
int options; /* PR_O_REDISP, PR_O_TRANSP, ... */
+ int options2; /* PR_O2_* */
int mode; /* mode = PR_MODE_TCP, PR_MODE_HTTP or PR_MODE_HEALTH */
struct sockaddr_in dispatch_addr; /* the default address to connect to */
union {