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Tidy up somaxconn (accept queue limit) and related functions

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and move it together into one place.
This commit is contained in:
andre 2012-10-20 10:51:32 +00:00
parent 37c9a4dd05
commit e3d1886535
1 changed files with 26 additions and 22 deletions
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48
sys/kern/uipc_socket.c
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@ -182,15 +182,37 @@ MALLOC_DEFINE(M_PCB, "pcb", "protocol control block");
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.