PATCH: unnecessary calls to getjobtext()

[Sven Wischnowsky <wischnow@informatik.hu-berlin.de>]

At home I'm currently playing with a word-code version of zsh, this
makes me notice some things...

There are still many unnecessary calls to getjobtext() if I'm not
completely mistaken. We don't need to build the text when we are
executing a function (if that is suspended, the whole function is
suspended and then the text for it will be created) or when we are
sourcing a file (since this can't be suspended as we recently found
out). In both cases: unless the pipe is backgrounded.

Or does anyone see any problems with this? Makes startup and compinit
a bit faster.

Bye
 Sven

diff -ru ../z.old/Src/exec.c Src/exec.c
--- ../z.old/Src/exec.c	Fri Jan 14 09:33:15 2000
+++ Src/exec.c	Fri Jan 14 11:39:22 2000
@@ -1053,7 +1053,7 @@
 	lineno = pline->left->lineno;
 
     if (pline_level == 1) {
-	if (!sfcontext)
+	if ((how & Z_ASYNC) || (!sfcontext && !sourcelevel))
 	    strcpy(list_pipe_text, getjobtext((void *) pline->left));
 	else
 	    list_pipe_text[0] = '\0';
@@ -1639,7 +1639,8 @@
     }
 
     /* Get the text associated with this command. */
-    if (!sfcontext && (jobbing || (how & Z_TIMED)))
+    if ((how & Z_ASYNC) ||
+	(!sfcontext && !sourcelevel && (jobbing || (how & Z_TIMED))))
 	text = getjobtext((void *) cmd);
     else
 	text = NULL;
@@ -2854,7 +2855,7 @@
 {
     LinkList last_file_list = NULL;
     unsigned char *ocs;
-    int ocsp;
+    int ocsp, osfc;
 
     if (errflag)
 	return;
@@ -2882,7 +2883,10 @@
     ocsp = cmdsp;
     cmdstack = (unsigned char *) zalloc(CMDSTACKSZ);
     cmdsp = 0;
+    if ((osfc = sfcontext) == SFC_NONE)
+	sfcontext = SFC_DIRECT;
     doshfunc(shf->nam, shf->funcdef, args, shf->flags, 0);
+    sfcontext = osfc;
     free(cmdstack);
     cmdstack = ocs;
     cmdsp = ocsp;
diff -ru ../z.old/Src/init.c Src/init.c
--- ../z.old/Src/init.c	Fri Jan 14 09:33:16 2000
+++ Src/init.c	Fri Jan 14 09:34:04 2000
@@ -708,7 +708,7 @@
     breaks = loops = 0;
     lastmailcheck = time(NULL);
     locallevel = sourcelevel = 0;
-    sfcontext = SFC_DIRECT;
+    sfcontext = SFC_NONE;
     trapreturn = 0;
     noerrexit = -1;
     nohistsave = 1;
diff -ru ../z.old/Src/zsh.h Src/zsh.h
--- ../z.old/Src/zsh.h	Fri Jan 14 09:33:18 2000
+++ Src/zsh.h	Fri Jan 14 09:33:51 2000
@@ -850,12 +850,13 @@
 
 /* Shell function context types. */
 
-#define SFC_DIRECT   0		/* called directly from the user */
-#define SFC_SIGNAL   1		/* signal handler */
-#define SFC_HOOK     2		/* one of the special functions */
-#define SFC_WIDGET   3		/* user defined widget */
-#define SFC_COMPLETE 4		/* called from completion code */
-#define SFC_CWIDGET  5		/* new style completion widget */
+#define SFC_NONE     0		/* no function running */
+#define SFC_DIRECT   1		/* called directly from the user */
+#define SFC_SIGNAL   2		/* signal handler */
+#define SFC_HOOK     3		/* one of the special functions */
+#define SFC_WIDGET   4		/* user defined widget */
+#define SFC_COMPLETE 5		/* called from completion code */
+#define SFC_CWIDGET  6		/* new style completion widget */
 
 /* node in list of function call wrappers */
 

--
Sven Wischnowsky                         wischnow@informatik.hu-berlin.de