mirror of
https://github.com/python/cpython.git
synced 2025-12-04 00:30:19 +00:00
Setup.in: added tkinter; rearranged the definition of PYTHONPATH so
that the module-specific components are in the section for that module. cursesmodule.c: patched it so it actually works. tkintermodule.c: call Py_AtExit instead of atexit(). signalmodule.c: converted to new naming style; added BGN/END SAVE around pause() call. socketmodule.c: added setblocking() after Tommy Burnette.
This commit is contained in:
Guido van Rossum
parent
a142613678
commit
e4485b064d
5 changed files with 252 additions and 202 deletions
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@ -32,6 +32,8 @@ OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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#include <signal.h>
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#include <errno.h>
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#include "rename1.h"
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#ifndef SIG_ERR
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#define SIG_ERR ((RETSIGTYPE (*)())-1)
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#endif
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@ -68,147 +70,150 @@ static long main_thread;
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static pid_t main_pid;
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#endif
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struct signalhandler_list {
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struct PySignal_SignalArrayStruct {
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int tripped;
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object *func;
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PyObject *func;
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};
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static struct signalhandler_list sig_list[NSIG];
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static int tripped = 0; /* Speed up sigcheck() when none tripped */
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static struct PySignal_SignalArrayStruct PySignal_SignalHandlerArray[NSIG];
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static int PySignal_IsTripped = 0; /* Speed up sigcheck() when none tripped */
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static object *sig_dfl_object;
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static object *sig_ign_object;
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static object *default_int_handler_object;
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static PyObject *PySignal_SignalDefaultHandler;
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static PyObject *PySignal_SignalIgnoreHandler;
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static PyObject *PySignal_DefaultIntHandler;
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static object *
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default_int_handler(self, arg)
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object *self;
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object *arg;
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static PyObject *
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PySignal_CDefaultIntHandler(self, arg)
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PyObject *self;
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PyObject *arg;
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{
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err_set(KeyboardInterrupt);
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return NULL;
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PyErr_SetNone(PyExc_KeyboardInterrupt);
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return (PyObject *)NULL;
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}
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static RETSIGTYPE
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signal_handler(sig_num)
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int sig_num;
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PySignal_Handler(sig_num)
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int sig_num;
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{
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#ifdef WITH_THREAD
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/* See NOTES section above */
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if (getpid() == main_pid) {
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#endif
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tripped++;
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sig_list[sig_num].tripped = 1;
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PySignal_IsTripped++;
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PySignal_SignalHandlerArray[sig_num].tripped = 1;
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#ifdef WITH_THREAD
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}
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#endif
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(void *)signal(sig_num, &signal_handler);
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(void *)signal(sig_num, &PySignal_Handler);
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}
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static object *
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signal_alarm(self, args)
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object *self; /* Not used */
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object *args;
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static PyObject *
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PySignal_Alarm(self, args)
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PyObject *self; /* Not used */
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PyObject *args;
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{
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int t;
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if (!getargs(args, "i", &t))
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return NULL;
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alarm(t);
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INCREF(None);
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return None;
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}
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static object *
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signal_pause(self, args)
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object *self; /* Not used */
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object *args;
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{
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if (!getnoarg(args))
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return NULL;
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pause();
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INCREF(None);
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return None;
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int rtn;
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if (!PyArg_Parse(args, "i", &t))
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return (PyObject *)NULL;
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/* alarm() returns the number of seconds remaining */
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return PyInt_FromLong(alarm(t));
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}
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static object *
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signal_signal(self, args)
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object *self; /* Not used */
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object *args;
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PySignal_Pause(self, args)
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PyObject *self; /* Not used */
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PyObject *args;
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{
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object *obj;
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int sig_num;
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object *old_handler;
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RETSIGTYPE (*func)();
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if (!getargs(args, "(iO)", &sig_num, &obj))
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if (!PyArg_NoArgs(args))
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return NULL;
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BGN_SAVE
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pause();
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END_SAVE
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Py_INCREF(Py_None);
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return Py_None;
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}
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static PyObject *
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PySignal_Signal(self, args)
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PyObject *self; /* Not used */
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PyObject *args;
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{
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PyObject *obj;
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int sig_num;
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PyObject *old_handler;
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RETSIGTYPE (*func)();
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if (!PyArg_Parse(args, "(iO)", &sig_num, &obj))
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return (PyObject *)NULL;
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#ifdef WITH_THREAD
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if (get_thread_ident() != main_thread) {
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err_setstr(ValueError, "signal only works in main thread");
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return NULL;
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PyErr_SetString(PyExc_ValueError, "signal only works in main thread");
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return (PyObject *)NULL;
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}
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#endif
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if (sig_num < 1 || sig_num >= NSIG) {
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err_setstr(ValueError, "signal number out of range");
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return NULL;
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PyErr_SetString(PyExc_ValueError, "signal number out of range");
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return (PyObject *)NULL;
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}
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if (obj == sig_ign_object)
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if (obj == PySignal_SignalIgnoreHandler)
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func = SIG_IGN;
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else if (obj == sig_dfl_object)
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else if (obj == PySignal_SignalDefaultHandler)
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func = SIG_DFL;
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else if (!is_methodobject(obj) &&
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!is_funcobject(obj) &&
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!is_instancemethodobject(obj)) {
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err_setstr(TypeError,
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else if (!PyCFunction_Check(obj) &&
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!PyFunction_Check(obj) &&
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!PyMethod_Check(obj)) {
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PyErr_SetString(PyExc_TypeError,
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"signal handler must be signal.SIG_IGN, signal.SIG_DFL, or a callable object");
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return NULL;
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return (PyObject *)NULL;
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}
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else
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func = signal_handler;
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func = PySignal_Handler;
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if (signal(sig_num, func) == SIG_ERR) {
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err_errno(RuntimeError);
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return NULL;
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PyErr_SetFromErrno(PyExc_RuntimeError);
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return (PyObject *)NULL;
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}
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old_handler = sig_list[sig_num].func;
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sig_list[sig_num].tripped = 0;
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INCREF(obj);
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sig_list[sig_num].func = obj;
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old_handler = PySignal_SignalHandlerArray[sig_num].func;
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PySignal_SignalHandlerArray[sig_num].tripped = 0;
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Py_INCREF(obj);
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PySignal_SignalHandlerArray[sig_num].func = obj;
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return old_handler;
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}
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static object *
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signal_getsignal(self, args)
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object *self; /* Not used */
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object *args;
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static PyObject *
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PySignal_GetSignal(self, args)
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PyObject *self; /* Not used */
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PyObject *args;
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{
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int sig_num;
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object *old_handler;
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if (!getargs(args, "i", &sig_num))
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return NULL;
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PyObject *old_handler;
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if (!PyArg_Parse(args, "i", &sig_num))
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return (PyObject *)NULL;
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if (sig_num < 1 || sig_num >= NSIG) {
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err_setstr(ValueError, "signal number out of range");
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return NULL;
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PyErr_SetString(PyExc_ValueError, "signal number out of range");
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return (PyObject *)NULL;
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}
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old_handler = sig_list[sig_num].func;
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INCREF(old_handler);
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old_handler = PySignal_SignalHandlerArray[sig_num].func;
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Py_INCREF(old_handler);
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return old_handler;
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}
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/* List of functions defined in the module */
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static struct methodlist signal_methods[] = {
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{"alarm", signal_alarm},
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{"signal", signal_signal},
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{"getsignal", signal_getsignal},
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{"pause", signal_pause},
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static PyMethodDef PySignal_methods[] = {
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{"alarm", PySignal_Alarm},
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{"signal", PySignal_Signal},
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{"getsignal", PySignal_GetSignal},
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{"pause", PySignal_Pause},
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{NULL, NULL} /* sentinel */
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};
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void
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initsignal()
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{
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object *m, *d, *x;
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object *b_dict;
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PyObject *m, *d, *x;
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PyObject *b_dict;
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int i;
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#ifdef WITH_THREAD
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@ -217,218 +222,218 @@ initsignal()
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#endif
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/* Create the module and add the functions */
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m = initmodule("signal", signal_methods);
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m = Py_InitModule("signal", PySignal_methods);
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/* Add some symbolic constants to the module */
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d = getmoduledict(m);
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d = PyModule_GetDict(m);
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sig_dfl_object = newintobject((long)SIG_DFL);
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dictinsert(d, "SIG_DFL", sig_dfl_object);
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sig_ign_object = newintobject((long)SIG_IGN);
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dictinsert(d, "SIG_IGN", sig_ign_object);
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dictinsert(d, "NSIG", newintobject((long)NSIG));
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default_int_handler_object = newmethodobject("default_int_handler",
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default_int_handler,
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(object *)NULL,
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PySignal_SignalDefaultHandler = PyInt_FromLong((long)SIG_DFL);
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PyDict_SetItemString(d, "SIG_DFL", PySignal_SignalDefaultHandler);
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PySignal_SignalIgnoreHandler = PyInt_FromLong((long)SIG_IGN);
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PyDict_SetItemString(d, "SIG_IGN", PySignal_SignalIgnoreHandler);
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PyDict_SetItemString(d, "NSIG", PyInt_FromLong((long)NSIG));
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PySignal_DefaultIntHandler = PyCFunction_New("default_int_handler",
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PySignal_CDefaultIntHandler,
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(PyObject *)NULL,
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0);
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dictinsert(d, "default_int_handler", default_int_handler_object);
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PyDict_SetItemString(d, "default_int_handler", PySignal_DefaultIntHandler);
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sig_list[0].tripped = 0;
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PySignal_SignalHandlerArray[0].tripped = 0;
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for (i = 1; i < NSIG; i++) {
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RETSIGTYPE (*t)();
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t = signal(i, SIG_IGN);
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signal(i, t);
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sig_list[i].tripped = 0;
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PySignal_SignalHandlerArray[i].tripped = 0;
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if (t == SIG_DFL)
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sig_list[i].func = sig_dfl_object;
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PySignal_SignalHandlerArray[i].func = PySignal_SignalDefaultHandler;
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else if (t == SIG_IGN)
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sig_list[i].func = sig_ign_object;
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PySignal_SignalHandlerArray[i].func = PySignal_SignalIgnoreHandler;
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else
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sig_list[i].func = None; /* None of our business */
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INCREF(sig_list[i].func);
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PySignal_SignalHandlerArray[i].func = Py_None; /* None of our business */
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Py_INCREF(PySignal_SignalHandlerArray[i].func);
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}
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if (sig_list[SIGINT].func == sig_dfl_object) {
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if (PySignal_SignalHandlerArray[SIGINT].func == PySignal_SignalDefaultHandler) {
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/* Install default int handler */
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DECREF(sig_list[SIGINT].func);
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sig_list[SIGINT].func = default_int_handler_object;
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INCREF(default_int_handler_object);
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signal(SIGINT, &signal_handler);
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Py_DECREF(PySignal_SignalHandlerArray[SIGINT].func);
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PySignal_SignalHandlerArray[SIGINT].func = PySignal_DefaultIntHandler;
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Py_INCREF(PySignal_DefaultIntHandler);
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signal(SIGINT, &PySignal_Handler);
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}
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#ifdef SIGHUP
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x = newintobject(SIGHUP);
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dictinsert(d, "SIGHUP", x);
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x = PyInt_FromLong(SIGHUP);
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PyDict_SetItemString(d, "SIGHUP", x);
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#endif
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#ifdef SIGINT
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x = newintobject(SIGINT);
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dictinsert(d, "SIGINT", x);
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x = PyInt_FromLong(SIGINT);
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PyDict_SetItemString(d, "SIGINT", x);
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#endif
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#ifdef SIGQUIT
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x = newintobject(SIGQUIT);
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dictinsert(d, "SIGQUIT", x);
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x = PyInt_FromLong(SIGQUIT);
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PyDict_SetItemString(d, "SIGQUIT", x);
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#endif
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#ifdef SIGILL
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x = newintobject(SIGILL);
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dictinsert(d, "SIGILL", x);
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x = PyInt_FromLong(SIGILL);
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PyDict_SetItemString(d, "SIGILL", x);
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#endif
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#ifdef SIGTRAP
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x = newintobject(SIGTRAP);
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dictinsert(d, "SIGTRAP", x);
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x = PyInt_FromLong(SIGTRAP);
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PyDict_SetItemString(d, "SIGTRAP", x);
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#endif
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#ifdef SIGIOT
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x = newintobject(SIGIOT);
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dictinsert(d, "SIGIOT", x);
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x = PyInt_FromLong(SIGIOT);
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PyDict_SetItemString(d, "SIGIOT", x);
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#endif
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#ifdef SIGABRT
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x = newintobject(SIGABRT);
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dictinsert(d, "SIGABRT", x);
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x = PyInt_FromLong(SIGABRT);
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PyDict_SetItemString(d, "SIGABRT", x);
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#endif
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#ifdef SIGEMT
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x = newintobject(SIGEMT);
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dictinsert(d, "SIGEMT", x);
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x = PyInt_FromLong(SIGEMT);
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PyDict_SetItemString(d, "SIGEMT", x);
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#endif
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#ifdef SIGFPE
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x = newintobject(SIGFPE);
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dictinsert(d, "SIGFPE", x);
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x = PyInt_FromLong(SIGFPE);
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PyDict_SetItemString(d, "SIGFPE", x);
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#endif
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#ifdef SIGKILL
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x = newintobject(SIGKILL);
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dictinsert(d, "SIGKILL", x);
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x = PyInt_FromLong(SIGKILL);
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PyDict_SetItemString(d, "SIGKILL", x);
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#endif
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#ifdef SIGBUS
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x = newintobject(SIGBUS);
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dictinsert(d, "SIGBUS", x);
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x = PyInt_FromLong(SIGBUS);
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PyDict_SetItemString(d, "SIGBUS", x);
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#endif
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#ifdef SIGSEGV
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x = newintobject(SIGSEGV);
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dictinsert(d, "SIGSEGV", x);
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x = PyInt_FromLong(SIGSEGV);
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PyDict_SetItemString(d, "SIGSEGV", x);
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#endif
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#ifdef SIGSYS
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x = newintobject(SIGSYS);
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dictinsert(d, "SIGSYS", x);
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x = PyInt_FromLong(SIGSYS);
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PyDict_SetItemString(d, "SIGSYS", x);
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#endif
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#ifdef SIGPIPE
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x = newintobject(SIGPIPE);
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dictinsert(d, "SIGPIPE", x);
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x = PyInt_FromLong(SIGPIPE);
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PyDict_SetItemString(d, "SIGPIPE", x);
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#endif
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#ifdef SIGALRM
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x = newintobject(SIGALRM);
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dictinsert(d, "SIGALRM", x);
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x = PyInt_FromLong(SIGALRM);
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PyDict_SetItemString(d, "SIGALRM", x);
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#endif
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#ifdef SIGTERM
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x = newintobject(SIGTERM);
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dictinsert(d, "SIGTERM", x);
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x = PyInt_FromLong(SIGTERM);
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PyDict_SetItemString(d, "SIGTERM", x);
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#endif
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#ifdef SIGUSR1
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x = newintobject(SIGUSR1);
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dictinsert(d, "SIGUSR1", x);
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x = PyInt_FromLong(SIGUSR1);
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PyDict_SetItemString(d, "SIGUSR1", x);
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#endif
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#ifdef SIGUSR2
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x = newintobject(SIGUSR2);
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dictinsert(d, "SIGUSR2", x);
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x = PyInt_FromLong(SIGUSR2);
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PyDict_SetItemString(d, "SIGUSR2", x);
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#endif
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#ifdef SIGCLD
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x = newintobject(SIGCLD);
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dictinsert(d, "SIGCLD", x);
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x = PyInt_FromLong(SIGCLD);
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PyDict_SetItemString(d, "SIGCLD", x);
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#endif
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#ifdef SIGCHLD
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x = newintobject(SIGCHLD);
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dictinsert(d, "SIGCHLD", x);
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x = PyInt_FromLong(SIGCHLD);
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PyDict_SetItemString(d, "SIGCHLD", x);
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#endif
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#ifdef SIGPWR
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x = newintobject(SIGPWR);
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dictinsert(d, "SIGPWR", x);
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x = PyInt_FromLong(SIGPWR);
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PyDict_SetItemString(d, "SIGPWR", x);
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#endif
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#ifdef SIGIO
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x = newintobject(SIGIO);
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dictinsert(d, "SIGIO", x);
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x = PyInt_FromLong(SIGIO);
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PyDict_SetItemString(d, "SIGIO", x);
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#endif
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#ifdef SIGURG
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x = newintobject(SIGURG);
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dictinsert(d, "SIGURG", x);
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x = PyInt_FromLong(SIGURG);
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PyDict_SetItemString(d, "SIGURG", x);
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#endif
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#ifdef SIGWINCH
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x = newintobject(SIGWINCH);
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dictinsert(d, "SIGWINCH", x);
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x = PyInt_FromLong(SIGWINCH);
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PyDict_SetItemString(d, "SIGWINCH", x);
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#endif
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#ifdef SIGPOLL
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x = newintobject(SIGPOLL);
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dictinsert(d, "SIGPOLL", x);
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x = PyInt_FromLong(SIGPOLL);
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PyDict_SetItemString(d, "SIGPOLL", x);
|
||||
#endif
|
||||
#ifdef SIGSTOP
|
||||
x = newintobject(SIGSTOP);
|
||||
dictinsert(d, "SIGSTOP", x);
|
||||
x = PyInt_FromLong(SIGSTOP);
|
||||
PyDict_SetItemString(d, "SIGSTOP", x);
|
||||
#endif
|
||||
#ifdef SIGTSTP
|
||||
x = newintobject(SIGTSTP);
|
||||
dictinsert(d, "SIGTSTP", x);
|
||||
x = PyInt_FromLong(SIGTSTP);
|
||||
PyDict_SetItemString(d, "SIGTSTP", x);
|
||||
#endif
|
||||
#ifdef SIGCONT
|
||||
x = newintobject(SIGCONT);
|
||||
dictinsert(d, "SIGCONT", x);
|
||||
x = PyInt_FromLong(SIGCONT);
|
||||
PyDict_SetItemString(d, "SIGCONT", x);
|
||||
#endif
|
||||
#ifdef SIGTTIN
|
||||
x = newintobject(SIGTTIN);
|
||||
dictinsert(d, "SIGTTIN", x);
|
||||
x = PyInt_FromLong(SIGTTIN);
|
||||
PyDict_SetItemString(d, "SIGTTIN", x);
|
||||
#endif
|
||||
#ifdef SIGTTOU
|
||||
x = newintobject(SIGTTOU);
|
||||
dictinsert(d, "SIGTTOU", x);
|
||||
x = PyInt_FromLong(SIGTTOU);
|
||||
PyDict_SetItemString(d, "SIGTTOU", x);
|
||||
#endif
|
||||
#ifdef SIGVTALRM
|
||||
x = newintobject(SIGVTALRM);
|
||||
dictinsert(d, "SIGVTALRM", x);
|
||||
x = PyInt_FromLong(SIGVTALRM);
|
||||
PyDict_SetItemString(d, "SIGVTALRM", x);
|
||||
#endif
|
||||
#ifdef SIGPROF
|
||||
x = newintobject(SIGPROF);
|
||||
dictinsert(d, "SIGPROF", x);
|
||||
x = PyInt_FromLong(SIGPROF);
|
||||
PyDict_SetItemString(d, "SIGPROF", x);
|
||||
#endif
|
||||
#ifdef SIGCPU
|
||||
x = newintobject(SIGCPU);
|
||||
dictinsert(d, "SIGCPU", x);
|
||||
x = PyInt_FromLong(SIGCPU);
|
||||
PyDict_SetItemString(d, "SIGCPU", x);
|
||||
#endif
|
||||
#ifdef SIGFSZ
|
||||
x = newintobject(SIGFSZ);
|
||||
dictinsert(d, "SIGFSZ", x);
|
||||
x = PyInt_FromLong(SIGFSZ);
|
||||
PyDict_SetItemString(d, "SIGFSZ", x);
|
||||
#endif
|
||||
/* Check for errors */
|
||||
if (err_occurred())
|
||||
fatal("can't initialize module signal");
|
||||
if (PyErr_Occurred())
|
||||
Py_FatalError("can't initialize module signal");
|
||||
}
|
||||
|
||||
int
|
||||
sigcheck()
|
||||
{
|
||||
int i;
|
||||
object *f;
|
||||
if (!tripped)
|
||||
PyObject *f;
|
||||
if (!PySignal_IsTripped)
|
||||
return 0;
|
||||
#ifdef WITH_THREAD
|
||||
if (get_thread_ident() != main_thread)
|
||||
return 0;
|
||||
#endif
|
||||
f = getframe();
|
||||
if (f == NULL)
|
||||
f = None;
|
||||
if (f == (PyObject *)NULL)
|
||||
f = Py_None;
|
||||
for (i = 1; i < NSIG; i++) {
|
||||
if (sig_list[i].tripped) {
|
||||
object *arglist, *result;
|
||||
sig_list[i].tripped = 0;
|
||||
arglist = mkvalue("(iO)", i, f);
|
||||
if (arglist == NULL)
|
||||
result = NULL;
|
||||
if (PySignal_SignalHandlerArray[i].tripped) {
|
||||
PyObject *arglist, *result;
|
||||
PySignal_SignalHandlerArray[i].tripped = 0;
|
||||
arglist = Py_BuildValue("(iO)", i, f);
|
||||
if (arglist == (PyObject *)NULL)
|
||||
result = (PyObject *)NULL;
|
||||
else {
|
||||
result = call_object(sig_list[i].func,arglist);
|
||||
DECREF(arglist);
|
||||
result = PyEval_CallObject(PySignal_SignalHandlerArray[i].func,arglist);
|
||||
Py_DECREF(arglist);
|
||||
}
|
||||
if (result == NULL) {
|
||||
if (result == (PyObject *)NULL) {
|
||||
return 1;
|
||||
} else {
|
||||
DECREF(result);
|
||||
Py_DECREF(result);
|
||||
}
|
||||
}
|
||||
}
|
||||
tripped = 0;
|
||||
PySignal_IsTripped = 0;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
|
@ -443,12 +448,12 @@ initintr()
|
|||
int
|
||||
intrcheck()
|
||||
{
|
||||
if (sig_list[SIGINT].tripped) {
|
||||
if (PySignal_SignalHandlerArray[SIGINT].tripped) {
|
||||
#ifdef WITH_THREAD
|
||||
if (get_thread_ident() != main_thread)
|
||||
return 0;
|
||||
#endif
|
||||
sig_list[SIGINT].tripped = 0;
|
||||
PySignal_SignalHandlerArray[SIGINT].tripped = 0;
|
||||
return 1;
|
||||
}
|
||||
return 0;
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue