Mercurial > cpython-lru_cache-weakref

diff Python/pythonrun.c @ 1079:e4c6a0dd5c2b legacy-trunk

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* bltinmodule.c: added built-in function cmp(a, b) * flmodule.c: added {do,check}_only_forms to fl's list of functions; and don't print a message when an unknown object is returned. * pythonrun.c: catch SIGHUP and SIGTERM to do essential cleanup. * Made jpegmodule.c smaller by using getargs() and mkvalue() consistently. * Increased parser stack size to 500 in parser.h. * Implemented custom allocation of stack frames to frameobject.c and added dynamic stack overflow checks (value stack only) to ceval.c. (There seems to be a bug left: sometimes stack traces don't make sense.)
author Guido van Rossum <guido@python.org>
date Sun, 18 Oct 1992 18:53:57 +0000
parents 2c0432fcc270
children 1cabc2b6c970
line wrap: on
line diff
--- a/Python/pythonrun.c	Sun Oct 18 17:09:59 1992 +0000
+++ b/Python/pythonrun.c	Sun Oct 18 18:53:57 1992 +0000
@@ -38,10 +38,21 @@
 #include "pythonrun.h"
 #include "import.h"
 
+#ifdef unix
+#define HANDLE_SIGNALS
+#endif
+
+#ifdef HANDLE_SIGNALS
+#include <signal.h>
+#include "sigtype.h"
+#endif
+
 extern char *getpythonpath();
 
 extern grammar gram; /* From graminit.c */
 
+void initsigs(); /* Forward */
+
 int debugging; /* Needed by parser.c */
 int verbose; /* Needed by import.c */
 
@@ -67,10 +78,10 @@
 	initsys();
 	
 	initcalls(); /* Configuration-dependent initializations */
-	
-	initintr(); /* For intrcheck() */
 
 	setpythonpath(getpythonpath());
+
+	initsigs(); /* Signal handling stuff, including initintr() */
 }
 
 /* Parse input from a file and execute it */
@@ -372,8 +383,7 @@
 #endif
 
 void
-goaway(sts)
-	int sts;
+cleanup()
 {
 	object *exitfunc = sysget("exitfunc");
 
@@ -395,6 +405,13 @@
 	}
 
 	flushline();
+}
+
+void
+goaway(sts)
+	int sts;
+{
+	cleanup();
 
 #ifdef USE_THREAD
 
@@ -433,6 +450,30 @@
 	/*NOTREACHED*/
 }
 
+#ifdef HANDLE_SIGNALS
+SIGTYPE
+sighandler(sig)
+	int sig;
+{
+	signal(sig, SIG_DFL); /* Don't catch recursive signals */
+	cleanup(); /* Do essential clean-up */
+	kill(getpid(), sig); /* Pretend the signal killed us */
+	/*NOTREACHED*/
+}
+#endif
+
+void
+initsigs()
+{
+	initintr();
+#ifdef HANDLE_SIGNALS
+	if (signal(SIGHUP, SIG_IGN) != SIG_IGN)
+		signal(SIGHUP, sighandler);
+	if (signal(SIGTERM, SIG_IGN) != SIG_IGN)
+		signal(SIGTERM, sighandler);
+#endif
+}
+
 #ifdef TRACE_REFS
 /* Ask a yes/no question */