[src/trunk]: src/usr.bin/make make(1): reduce memory allocation in Arch_Parse...

[rillig <rillig%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/8ed664271601
branches:  trunk
changeset: 1016707:8ed664271601
user:      rillig <rillig%NetBSD.org@localhost>
date:      Sat Nov 28 23:13:28 2020 +0000

description:
make(1): reduce memory allocation in Arch_ParseArchive

diffstat:

 usr.bin/make/arch.c |  14 +++++++-------
 usr.bin/make/lst.h  |   4 +++-
 2 files changed, 10 insertions(+), 8 deletions(-)

diffs (61 lines):

diff -r 48f2ea041eb9 -r 8ed664271601 usr.bin/make/arch.c
--- a/usr.bin/make/arch.c       Sat Nov 28 22:59:53 2020 +0000
+++ b/usr.bin/make/arch.c       Sat Nov 28 23:13:28 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: arch.c,v 1.180 2020/11/28 19:26:10 rillig Exp $        */
+/*     $NetBSD: arch.c,v 1.181 2020/11/28 23:13:28 rillig Exp $        */
 
 /*
  * Copyright (c) 1988, 1989, 1990, 1993
@@ -125,7 +125,7 @@
 #include "config.h"
 
 /*     "@(#)arch.c     8.2 (Berkeley) 1/2/94"  */
-MAKE_RCSID("$NetBSD: arch.c,v 1.180 2020/11/28 19:26:10 rillig Exp $");
+MAKE_RCSID("$NetBSD: arch.c,v 1.181 2020/11/28 23:13:28 rillig Exp $");
 
 typedef struct List ArchList;
 typedef struct ListNode ArchListNode;
@@ -344,11 +344,11 @@
                        free(buf);
 
                } else if (Dir_HasWildcards(memName)) {
-                       StringList *members = Lst_New();
-                       Dir_Expand(memName, dirSearchPath, members);
+                       StringList members = LST_INIT;
+                       Dir_Expand(memName, dirSearchPath, &members);
 
-                       while (!Lst_IsEmpty(members)) {
-                               char *member = Lst_Dequeue(members);
+                       while (!Lst_IsEmpty(&members)) {
+                               char *member = Lst_Dequeue(&members);
                                char *fullname = str_concat4(libName, "(",
                                                             member, ")");
                                free(member);
@@ -359,7 +359,7 @@
                                gn->type |= OP_ARCHV;
                                Lst_Append(nodeLst, gn);
                        }
-                       Lst_Free(members);
+                       Lst_Done(&members);
 
                } else {
                        char *fullname = str_concat4(libName, "(", memName,
diff -r 48f2ea041eb9 -r 8ed664271601 usr.bin/make/lst.h
--- a/usr.bin/make/lst.h        Sat Nov 28 22:59:53 2020 +0000
+++ b/usr.bin/make/lst.h        Sat Nov 28 23:13:28 2020 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: lst.h,v 1.89 2020/11/28 19:26:10 rillig Exp $  */
+/*     $NetBSD: lst.h,v 1.90 2020/11/28 23:13:28 rillig Exp $  */
 
 /*
  * Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -118,6 +118,8 @@
 /* Free the list, freeing the node data using the given function. */
 void Lst_Destroy(List *, LstFreeProc);
 
+#define LST_INIT { NULL, NULL }
+
 /* Initialize a list, without memory allocation. */
 MAKE_INLINE void
 Lst_Init(List *list)