Author: andre
Date: Sat Oct 20 10:51:32 2012
New Revision: 241779
URL: http://svn.freebsd.org/changeset/base/241779
Log:
Tidy up somaxconn (accept queue limit) and related functions
and move it together into one place.
Modified:
head/sys/kern/uipc_socket.c
Modified: head/sys/kern/uipc_socket.c
==============================================================================
--- head/sys/kern/uipc_socket.c Sat Oct 20 10:34:55 2012 (r241778)
+++ head/sys/kern/uipc_socket.c Sat Oct 20 10:51:32 2012 (r241779)
@@ -182,15 +182,37 @@ MALLOC_DEFINE(M_PCB, "pcb", "protocol co
VNET_ASSERT(curvnet != NULL, \
("%s:%d curvnet is NULL, so=%p", __func__, __LINE__, (so)));
+/*
+ * Limit on the number of connections in the listen queue waiting
+ * for accept(2).
+ */
static int somaxconn = SOMAXCONN;
-static int sysctl_somaxconn(SYSCTL_HANDLER_ARGS);
-/* XXX: we dont have SYSCTL_USHORT */
+
+static int
+sysctl_somaxconn(SYSCTL_HANDLER_ARGS)
+{
+ int error;
+ int val;
+
+ val = somaxconn;
+ error = sysctl_handle_int(oidp, &val, 0, req);
+ if (error || !req->newptr )
+ return (error);
+
+ if (val < 1 || val > USHRT_MAX)
+ return (EINVAL);
+
+ somaxconn = val;
+ return (0);
+}
SYSCTL_PROC(_kern_ipc, KIPC_SOMAXCONN, somaxconn, CTLTYPE_UINT | CTLFLAG_RW,
- 0, sizeof(int), sysctl_somaxconn, "I", "Maximum pending socket connection "
- "queue size");
+ 0, sizeof(int), sysctl_somaxconn, "I",
+ "Maximum listen socket pending connection accept queue size");
+
static int numopensockets;
SYSCTL_INT(_kern_ipc, OID_AUTO, numopensockets, CTLFLAG_RD,
&numopensockets, 0, "Number of open sockets");
+
#ifdef ZERO_COPY_SOCKETS
/* These aren't static because they're used in other files. */
int so_zero_copy_send = 1;
@@ -3269,24 +3291,6 @@ socheckuid(struct socket *so, uid_t uid)
return (0);
}
-static int
-sysctl_somaxconn(SYSCTL_HANDLER_ARGS)
-{
- int error;
- int val;
-
- val = somaxconn;
- error = sysctl_handle_int(oidp, &val, 0, req);
- if (error || !req->newptr )
- return (error);
-
- if (val < 1 || val > USHRT_MAX)
- return (EINVAL);
-
- somaxconn = val;
- return (0);
-}
-
/*
* These functions are used by protocols to notify the socket layer (and its
* consumers) of state changes in the sockets driven by protocol-side events.
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