Index: configure
===================================================================
--- configure	(revision 61255)
+++ configure	(working copy)
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 60787 .
+# From configure.in Revision: 61238 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for python 3.0.
 #
@@ -15715,8 +15715,10 @@
 
 
 
-for ac_func in alarm bind_textdomain_codeset chown clock confstr \
- ctermid execv fchmod fchown fork fpathconf ftime ftruncate \
+
+
+for ac_func in alarm setitimer getitimer bind_textdomain_codeset chown \
+ clock confstr ctermid execv fchmod fchown fork fpathconf ftime ftruncate \
  gai_strerror getgroups getlogin getloadavg getpeername getpgid getpid \
  getpriority getpwent getspnam getspent getsid getwd \
  kill killpg lchmod lchown lstat mkfifo mknod mktime \
Index: configure.in
===================================================================
--- configure.in	(revision 61255)
+++ configure.in	(working copy)
@@ -2273,8 +2273,8 @@
 AC_MSG_RESULT(MACHDEP_OBJS)
 
 # checks for library functions
-AC_CHECK_FUNCS(alarm bind_textdomain_codeset chown clock confstr \
- ctermid execv fchmod fchown fork fpathconf ftime ftruncate \
+AC_CHECK_FUNCS(alarm setitimer getitimer bind_textdomain_codeset chown \
+ clock confstr ctermid execv fchmod fchown fork fpathconf ftime ftruncate \
  gai_strerror getgroups getlogin getloadavg getpeername getpgid getpid \
  getpriority getpwent getspnam getspent getsid getwd \
  kill killpg lchmod lchown lstat mkfifo mknod mktime \
Index: Modules/signalmodule.c
===================================================================
--- Modules/signalmodule.c	(revision 61255)
+++ Modules/signalmodule.c	(working copy)
@@ -13,6 +13,7 @@
 #include <signal.h>
 
 #include <sys/stat.h>
+#include <sys/time.h>
 
 #ifndef SIG_ERR
 #define SIG_ERR ((PyOS_sighandler_t)(-1))
@@ -93,8 +94,45 @@
 
 static PyOS_sighandler_t old_siginthandler = SIG_DFL;
 
+static PyObject *ItimerError;
 
+/* auxiliary functions for setitimer/getitimer */
+static void
+timeval_from_double(double d, struct timeval *tv)
+{
+    tv->tv_sec = floor(d);
+    tv->tv_usec = fmod(d, 1.0) * 1000000.0;
+}
+
+static inline double
+double_from_timeval(struct timeval *tv)
+{
+    return tv->tv_sec + (double)(tv->tv_usec / 1000000.0);
+}
+
 static PyObject *
+itimer_retval(struct itimerval *iv)
+{
+    PyObject *r, *v;
+
+    if(!(r = PyTuple_New(2)))
+        return NULL;
+
+    if(!(v = PyFloat_FromDouble(double_from_timeval(&iv->it_value))))
+        return NULL;
+
+    PyTuple_SET_ITEM(r, 0, v);
+
+    if(!(v = PyFloat_FromDouble(double_from_timeval(&iv->it_interval))))
+        return NULL;
+
+    PyTuple_SET_ITEM(r, 1, v);
+
+    return r;
+}
+
+
+static PyObject *
 signal_default_int_handler(PyObject *self, PyObject *args)
 {
 	PyErr_SetNone(PyExc_KeyboardInterrupt);
@@ -347,11 +385,76 @@
 }
 
 
+#ifdef HAVE_SETITIMER
+static PyObject *
+itimer_setitimer(PyObject *self, PyObject *args)
+{
+    double first;
+    double interval = 0;
+    int which;
+    struct itimerval new, old;
+
+    if(!PyArg_ParseTuple(args, "id|d:setitimer", &which, &first, &interval))
+        return NULL;
+
+    /* Let OS do checking on which */
+    timeval_from_double(first, &new.it_value);
+    timeval_from_double(interval, &new.it_interval);
+    if (setitimer(which, &new, &old) != 0) {
+        PyErr_SetFromErrno(ItimerError);
+        return NULL;
+    }
+
+    return itimer_retval(&old);
+}
+
+PyDoc_STRVAR(setitimer_doc,
+"setitimer(which, seconds[, interval])\n\
+\n\
+Sets given itimer to fire after value seconds and after that every \n\
+interval seconds.\n\
+The itimer can be cleared by setting seconds to zero.\n\
+\n\
+Returns old values as a tuple: (delay, interval).");
+#endif
+
+
+#ifdef HAVE_GETITIMER
+static PyObject *
+itimer_getitimer(PyObject *self, PyObject *args)
+{
+    int which;
+    struct itimerval old;
+
+    if (!PyArg_ParseTuple(args, "i:getitimer", &which))
+        return NULL;
+
+    if (getitimer(which, &old) != 0) {
+        PyErr_SetFromErrno(ItimerError);
+        return NULL;
+    }
+
+    return itimer_retval(&old);
+}
+
+PyDoc_STRVAR(getitimer_doc,
+"getitimer(which)\n\
+\n\
+Returns current value of given itimer.");
+#endif
+
+
 /* List of functions defined in the module */
 static PyMethodDef signal_methods[] = {
 #ifdef HAVE_ALARM
 	{"alarm",	        signal_alarm, METH_VARARGS, alarm_doc},
 #endif
+#ifdef HAVE_SETITIMER
+    {"setitimer",   itimer_setitimer,   METH_VARARGS, setitimer_doc},
+#endif
+#ifdef HAVE_GETITIMER
+	{"getitimer",   itimer_getitimer,   METH_VARARGS, getitimer_doc},
+#endif
 	{"signal",	        signal_signal, METH_VARARGS, signal_doc},
 	{"getsignal",	        signal_getsignal, METH_VARARGS, getsignal_doc},
 	{"set_wakeup_fd",	signal_set_wakeup_fd, METH_VARARGS, set_wakeup_fd_doc},
@@ -374,19 +477,32 @@
 Functions:\n\
 \n\
 alarm() -- cause SIGALRM after a specified time [Unix only]\n\
+setitimer() -- cause a signal (described below) after a specified\n\
+               float time and the timer may restart then [Unix only]\n\
+getitimer() -- get current value of timer [Unix only]\n\
 signal() -- set the action for a given signal\n\
 getsignal() -- get the signal action for a given signal\n\
 pause() -- wait until a signal arrives [Unix only]\n\
 default_int_handler() -- default SIGINT handler\n\
 \n\
-Constants:\n\
-\n\
+signal constants:\n\
 SIG_DFL -- used to refer to the system default handler\n\
 SIG_IGN -- used to ignore the signal\n\
 NSIG -- number of defined signals\n\
-\n\
 SIGINT, SIGTERM, etc. -- signal numbers\n\
 \n\
+itimer constants:\n\
+ITIMER_REAL -- decrements in real time, and delivers SIGALRM upon\n\
+               expiration\n\
+ITIMER_VIRTUAL -- decrements only when the process is executing,\n\
+               and delivers SIGVTALRM upon expiration\n\
+ITIMER_PROF -- decrements both when the process is executing and\n\
+               when the system is executing on behalf of the process.\n\
+               Coupled with ITIMER_VIRTUAL, this timer is usually\n\
+               used to profile the time spent by the application\n\
+               in user and kernel space. SIGPROF is delivered upon\n\
+               expiration.\n\
+\n\n\
 *** IMPORTANT NOTICE ***\n\
 A signal handler function is called with two arguments:\n\
 the first is the signal number, the second is the interrupted stack frame.");
@@ -639,6 +755,28 @@
 	PyDict_SetItemString(d, "SIGINFO", x);
         Py_XDECREF(x);
 #endif
+
+#ifdef ITIMER_REAL
+    x = PyLong_FromLong(ITIMER_REAL);
+    PyDict_SetItemString(d, "ITIMER_REAL", x);
+    Py_DECREF(x);
+#endif
+#ifdef ITIMER_VIRTUAL
+    x = PyLong_FromLong(ITIMER_VIRTUAL);
+    PyDict_SetItemString(d, "ITIMER_VIRTUAL", x);
+    Py_DECREF(x);
+#endif
+#ifdef ITIMER_PROF
+    x = PyLong_FromLong(ITIMER_PROF);
+    PyDict_SetItemString(d, "ITIMER_PROF", x);
+    Py_DECREF(x);
+#endif
+
+#ifdef SETITIMER || GETITIMER
+    ItimerError = PyErr_NewException("itimer.error", NULL, NULL);
+    PyDict_SetItemString(d, "error", ItimerError);
+#endif
+
         if (!PyErr_Occurred())
                 return;
 
Index: pyconfig.h.in
===================================================================
--- pyconfig.h.in	(revision 61255)
+++ pyconfig.h.in	(working copy)
@@ -237,6 +237,9 @@
 /* Define this if you have the 6-arg version of gethostbyname_r(). */
 #undef HAVE_GETHOSTBYNAME_R_6_ARG
 
+/* Define to 1 if you have the `getitimer' function. */
+#undef HAVE_GETITIMER
+
 /* Define to 1 if you have the `getloadavg' function. */
 #undef HAVE_GETLOADAVG
 
@@ -495,6 +498,9 @@
 /* Define if you have the 'setgroups' function. */
 #undef HAVE_SETGROUPS
 
+/* Define to 1 if you have the `setitimer' function. */
+#undef HAVE_SETITIMER
+
 /* Define to 1 if you have the `setlocale' function. */
 #undef HAVE_SETLOCALE