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authorJeffrey Armstrong <jeff@approximatrix.com>2020-07-01 10:56:51 -0400
committerJeffrey Armstrong <jeff@approximatrix.com>2020-07-01 10:56:51 -0400
commitf79e9ee7426fa784a6f90c804338bd7b173c1a84 (patch)
tree017d0257a8b8c0fb1855bc6e8b9e946b7147f56d
parentc2696af240cdd21c716945457baec54a8703eaaa (diff)
downloadLR-87-f79e9ee7426fa784a6f90c804338bd7b173c1a84.zip
LR-87-f79e9ee7426fa784a6f90c804338bd7b173c1a84.tar.gz
Added socket timeout setting of 3 seconds, works on win32, needs unixy testing.
-rw-r--r--network.F9045
1 files changed, 45 insertions, 0 deletions
diff --git a/network.F90 b/network.F90
index fc8b410..381dc0f 100644
--- a/network.F90
+++ b/network.F90
@@ -30,6 +30,8 @@ implicit none
integer(kind=c_int), parameter::SOCK_STREAM = 1
+ integer, parameter::socket_timeout_ms = 3000
+
#ifdef WINDOWS
integer, parameter::hostent_int_kind = c_short
#else
@@ -63,6 +65,13 @@ implicit none
integer(kind=c_int64_t)::h_addr6
end type
+#ifndef WINDOWS
+ type, bind(c) :: timeval
+ integer(kind=c_long)::seconds
+ integer(kind=c_long)::useconds
+ end type
+#endif
+
integer(kind=c_size_t), parameter::sockaddr_size = 56
interface
@@ -121,8 +130,44 @@ implicit none
integer::socket
integer, intent(in)::domain, stype, protocol
+ integer::ignored
+
+#ifdef WINDOWS
+ integer(kind=c_int32_t), target::timeout
+ integer(kind=c_int), parameter::timeout_size=c_int32_t
+#else
+ type(timeval), target::timeout
+ integer(kind=c_int), parameter::timeout_size=2*c_long
+#endif
+
+ ! Set up a timeout on the socket that's sensible
+ interface
+ function setsockopt(s, level, optname, optval, optlen) bind(c, name="setsockopt")
+ use iso_c_binding
+ integer(kind=c_int)::setsockopt
+ integer(kind=c_int), value::s
+ integer(kind=c_int), value::level, optname, optlen
+ type(c_ptr), value::optval
+ end function
+ end interface
+
+#ifdef WINDOWS
+ integer, parameter::SOL_SOCKET = 65535
+ integer, parameter::SO_RCVTIMEO = 4102
+ timeout = socket_timeout_ms
+#else
+ integer, parameter::SOL_SOCKET = 1
+ integer, parameter::SO_RCVTIMEO = 20
+ timeout%useconds = 0
+ timeout%seconds = socket_timeout_ms/1000
+#endif
+
socket = socket_c(int(domain, c_int), int(stype, c_int), int(protocol, c_int))
+
+ ! Timeout call
+ ignored = setsockopt(socket, SOL_SOCKET, SO_RCVTIMEO, c_loc(timeout), c_int32_t)
+
end function socket