Module Name: src
Committed By: rillig
Date: Tue Sep 22 02:26:22 UTC 2020
Modified Files:
src/usr.bin/make: dir.c dir.h parse.c
Log Message:
make(1): rename type Path to CachedDir
The word "path" is commonly used either as an abbreviation for pathname
(a string consisting of several directory or file names) or as an
abbreviation for search path (a list of directory names used for
searching files), but not for a single directory.
To generate a diff of this commit:
cvs rdiff -u -r1.142 -r1.143 src/usr.bin/make/dir.c
cvs rdiff -u -r1.23 -r1.24 src/usr.bin/make/dir.h
cvs rdiff -u -r1.320 -r1.321 src/usr.bin/make/parse.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/usr.bin/make/dir.c
diff -u src/usr.bin/make/dir.c:1.142 src/usr.bin/make/dir.c:1.143
--- src/usr.bin/make/dir.c:1.142 Sun Sep 13 15:15:51 2020
+++ src/usr.bin/make/dir.c Tue Sep 22 02:26:22 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: dir.c,v 1.142 2020/09/13 15:15:51 rillig Exp $ */
+/* $NetBSD: dir.c,v 1.143 2020/09/22 02:26:22 rillig Exp $ */
/*
* Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -78,9 +78,9 @@
* The interface for this module is:
* Dir_Init Initialize the module.
*
- * Dir_InitCur Set the cur Path.
+ * Dir_InitCur Set the cur CachedDir.
*
- * Dir_InitDot Set the dot Path.
+ * Dir_InitDot Set the dot CachedDir.
*
* Dir_End Cleanup the module.
*
@@ -134,7 +134,7 @@
#include "job.h"
/* "@(#)dir.c 8.2 (Berkeley) 1/2/94" */
-MAKE_RCSID("$NetBSD: dir.c,v 1.142 2020/09/13 15:15:51 rillig Exp $");
+MAKE_RCSID("$NetBSD: dir.c,v 1.143 2020/09/22 02:26:22 rillig Exp $");
#define DIR_DEBUG0(fmt) \
if (!DEBUG(DIR)) (void) 0; else fprintf(debug_file, fmt)
@@ -147,7 +147,7 @@ MAKE_RCSID("$NetBSD: dir.c,v 1.142 2020/
/*
- * A search path consists of a Lst of Path structures. A Path structure
+ * A search path consists of a list of CachedDir structures. A CachedDir
* has in it the name of the directory and a hash table of all the files
* in the directory. This is used to cut down on the number of system
* calls necessary to find implicit dependents and their like. Since
@@ -179,7 +179,7 @@ MAKE_RCSID("$NetBSD: dir.c,v 1.142 2020/
* that UNIX OS's have taken to allowing more than 20 or 32
* file descriptors for a process, this doesn't seem acceptable
* to me.
- * 3) record the mtime of the directory in the Path structure and
+ * 3) record the mtime of the directory in the CachedDir structure and
* verify the directory hasn't changed since the contents were
* hashed. This will catch the creation or deletion of files,
* but not the updating of files. However, since it is the
@@ -229,9 +229,9 @@ static int misses; /* Sad, but not evil
static int nearmisses; /* Found under search path */
static int bigmisses; /* Sought by itself */
-static Path *dot; /* contents of current directory */
-static Path *cur; /* contents of current directory, if not dot */
-static Path *dotLast; /* a fake path entry indicating we need to
+static CachedDir *dot; /* contents of current directory */
+static CachedDir *cur; /* contents of current directory, if not dot */
+static CachedDir *dotLast; /* a fake path entry indicating we need to
* look for . last */
/* Results of doing a last-resort stat in Dir_FindFile -- if we have to go to
@@ -248,10 +248,10 @@ static Hash_Table lmtimes; /* same as mt
static void DirExpandInt(const char *, Lst, Lst);
static int DirPrintWord(void *, void *);
static int DirPrintDir(void *, void *);
-static char *DirLookup(Path *, const char *, const char *, Boolean);
-static char *DirLookupSubdir(Path *, const char *);
+static char *DirLookup(CachedDir *, const char *, const char *, Boolean);
+static char *DirLookupSubdir(CachedDir *, const char *);
static char *DirFindDot(Boolean, const char *, const char *);
-static char *DirLookupAbs(Path *, const char *, const char *);
+static char *DirLookupAbs(CachedDir *, const char *, const char *);
/*
@@ -355,7 +355,7 @@ Dir_InitDir(const char *cdname)
{
Dir_InitCur(cdname);
- dotLast = bmake_malloc(sizeof(Path));
+ dotLast = bmake_malloc(sizeof(CachedDir));
dotLast->refCount = 1;
dotLast->hits = 0;
dotLast->name = bmake_strdup(".DOTLAST");
@@ -368,23 +368,23 @@ Dir_InitDir(const char *cdname)
void
Dir_InitCur(const char *cdname)
{
- Path *p;
+ CachedDir *dir;
if (cdname != NULL) {
/*
* Our build directory is not the same as our source directory.
* Keep this one around too.
*/
- if ((p = Dir_AddDir(NULL, cdname))) {
- p->refCount += 1;
- if (cur && cur != p) {
+ if ((dir = Dir_AddDir(NULL, cdname))) {
+ dir->refCount += 1;
+ if (cur && cur != dir) {
/*
* We've been here before, cleanup.
*/
cur->refCount -= 1;
Dir_Destroy(cur);
}
- cur = p;
+ cur = dir;
}
}
}
@@ -447,15 +447,14 @@ void
Dir_SetPATH(void)
{
LstNode ln; /* a list element */
- Path *p;
Boolean hasLastDot = FALSE; /* true if we should search dot last */
Var_Delete(".PATH", VAR_GLOBAL);
Lst_Open(dirSearchPath);
if ((ln = Lst_First(dirSearchPath)) != NULL) {
- p = LstNode_Datum(ln);
- if (p == dotLast) {
+ CachedDir *dir = LstNode_Datum(ln);
+ if (dir == dotLast) {
hasLastDot = TRUE;
Var_Append(".PATH", dotLast->name, VAR_GLOBAL);
}
@@ -469,12 +468,12 @@ Dir_SetPATH(void)
}
while ((ln = Lst_Next(dirSearchPath)) != NULL) {
- p = LstNode_Datum(ln);
- if (p == dotLast)
+ CachedDir *dir = LstNode_Datum(ln);
+ if (dir == dotLast)
continue;
- if (p == dot && hasLastDot)
+ if (dir == dot && hasLastDot)
continue;
- Var_Append(".PATH", p->name, VAR_GLOBAL);
+ Var_Append(".PATH", dir->name, VAR_GLOBAL);
}
if (hasLastDot) {
@@ -486,13 +485,14 @@ Dir_SetPATH(void)
Lst_Close(dirSearchPath);
}
-/* See if the Path structure describes the same directory as the
+/* See if the CachedDir structure describes the same directory as the
* given one by comparing their names. Called from Dir_AddDir via
* Lst_Find when searching the list of open directories. */
static Boolean
DirFindName(const void *p, const void *desiredName)
{
- return strcmp(((const Path *)p)->name, desiredName) == 0;
+ const CachedDir *dir = p;
+ return strcmp(dir->name, desiredName) == 0;
}
/* See if the given name has any wildcard characters in it. Be careful not to
@@ -545,7 +545,7 @@ Dir_HasWildcards(const char *name)
/*-
*-----------------------------------------------------------------------
* DirMatchFiles --
- * Given a pattern and a Path structure, see if any files
+ * Given a pattern and a CachedDir structure, see if any files
* match the pattern and add their names to the 'expansions' list if
* any do. This is incomplete -- it doesn't take care of patterns like
* src / *src / *.c properly (just *.c on any of the directories), but it
@@ -553,7 +553,7 @@ Dir_HasWildcards(const char *name)
*
* Input:
* pattern Pattern to look for
- * p Directory to search
+ * dir Directory to search
* expansion Place to store the results
*
* Side Effects:
@@ -562,15 +562,15 @@ Dir_HasWildcards(const char *name)
*-----------------------------------------------------------------------
*/
static void
-DirMatchFiles(const char *pattern, Path *p, Lst expansions)
+DirMatchFiles(const char *pattern, CachedDir *dir, Lst expansions)
{
Hash_Search search; /* Index into the directory's table */
Hash_Entry *entry; /* Current entry in the table */
Boolean isDot; /* TRUE if the directory being searched is . */
- isDot = (p->name[0] == '.' && p->name[1] == '\0');
+ isDot = (dir->name[0] == '.' && dir->name[1] == '\0');
- for (entry = Hash_EnumFirst(&p->files, &search);
+ for (entry = Hash_EnumFirst(&dir->files, &search);
entry != NULL;
entry = Hash_EnumNext(&search))
{
@@ -586,7 +586,7 @@ DirMatchFiles(const char *pattern, Path
{
Lst_Append(expansions,
(isDot ? bmake_strdup(entry->name) :
- str_concat3(p->name, "/", entry->name)));
+ str_concat3(dir->name, "/", entry->name)));
}
}
}
@@ -728,7 +728,7 @@ DirExpandCurly(const char *word, const c
*
* Input:
* word Word to expand
- * path Path on which to look
+ * path Directory in which to look
* expansions Place to store the result
*
* Results:
@@ -746,8 +746,8 @@ DirExpandInt(const char *word, Lst path,
Lst_Open(path);
while ((ln = Lst_Next(path)) != NULL) {
- Path *p = LstNode_Datum(ln);
- DirMatchFiles(word, p, expansions);
+ CachedDir *dir = LstNode_Datum(ln);
+ DirMatchFiles(word, dir, expansions);
}
Lst_Close(path);
}
@@ -892,19 +892,19 @@ Dir_Expand(const char *word, Lst path, L
*-----------------------------------------------------------------------
*/
static char *
-DirLookup(Path *p, const char *name MAKE_ATTR_UNUSED, const char *cp,
+DirLookup(CachedDir *dir, const char *name MAKE_ATTR_UNUSED, const char *cp,
Boolean hasSlash MAKE_ATTR_UNUSED)
{
char *file; /* the current filename to check */
- DIR_DEBUG1(" %s ...\n", p->name);
+ DIR_DEBUG1(" %s ...\n", dir->name);
- if (Hash_FindEntry(&p->files, cp) == NULL)
+ if (Hash_FindEntry(&dir->files, cp) == NULL)
return NULL;
- file = str_concat3(p->name, "/", cp);
+ file = str_concat3(dir->name, "/", cp);
DIR_DEBUG1(" returning %s\n", file);
- p->hits += 1;
+ dir->hits += 1;
hits += 1;
return file;
}
@@ -925,13 +925,13 @@ DirLookup(Path *p, const char *name MAKE
*-----------------------------------------------------------------------
*/
static char *
-DirLookupSubdir(Path *p, const char *name)
+DirLookupSubdir(CachedDir *dir, const char *name)
{
struct make_stat mst;
char *file; /* the current filename to check */
- if (p != dot) {
- file = str_concat3(p->name, "/", name);
+ if (dir != dot) {
+ file = str_concat3(dir->name, "/", name);
} else {
/*
* Checking in dot -- DON'T put a leading ./ on the thing.
@@ -965,12 +965,12 @@ DirLookupSubdir(Path *p, const char *nam
*-----------------------------------------------------------------------
*/
static char *
-DirLookupAbs(Path *p, const char *name, const char *cp)
+DirLookupAbs(CachedDir *dir, const char *name, const char *cp)
{
- char *p1; /* pointer into p->name */
+ char *p1; /* pointer into dir->name */
const char *p2; /* pointer into name */
- DIR_DEBUG1(" %s ...\n", p->name);
+ DIR_DEBUG1(" %s ...\n", dir->name);
/*
* If the file has a leading path component and that component
@@ -978,20 +978,20 @@ DirLookupAbs(Path *p, const char *name,
* directory, we can attempt another cache lookup. And if we don't
* have a hit, we can safely assume the file does not exist at all.
*/
- for (p1 = p->name, p2 = name; *p1 && *p1 == *p2; p1++, p2++) {
+ for (p1 = dir->name, p2 = name; *p1 && *p1 == *p2; p1++, p2++) {
continue;
}
if (*p1 != '\0' || p2 != cp - 1) {
return NULL;
}
- if (Hash_FindEntry(&p->files, cp) == NULL) {
+ if (Hash_FindEntry(&dir->files, cp) == NULL) {
DIR_DEBUG0(" must be here but isn't -- returning\n");
/* Return empty string: terminates search */
return bmake_strdup("");
}
- p->hits += 1;
+ dir->hits += 1;
hits += 1;
DIR_DEBUG1(" returning %s\n", name);
return bmake_strdup(name);
@@ -1057,7 +1057,7 @@ Dir_FindFile(const char *name, Lst path)
{
LstNode ln; /* a list element */
char *file; /* the current filename to check */
- Path *p; /* current path member */
+ CachedDir *dir; /* current path member */
const char *base; /* Terminal name of file */
Boolean hasLastDot = FALSE; /* true we should search dot last */
Boolean hasSlash; /* true if 'name' contains a / */
@@ -1087,8 +1087,8 @@ Dir_FindFile(const char *name, Lst path)
Lst_Open(path);
if ((ln = Lst_First(path)) != NULL) {
- p = LstNode_Datum(ln);
- if (p == dotLast) {
+ dir = LstNode_Datum(ln);
+ if (dir == dotLast) {
hasLastDot = TRUE;
DIR_DEBUG0("[dot last]...");
}
@@ -1121,10 +1121,10 @@ Dir_FindFile(const char *name, Lst path)
}
while ((ln = Lst_Next(path)) != NULL) {
- p = LstNode_Datum(ln);
- if (p == dotLast)
+ dir = LstNode_Datum(ln);
+ if (dir == dotLast)
continue;
- if ((file = DirLookup(p, name, base, hasSlash)) != NULL) {
+ if ((file = DirLookup(dir, name, base, hasSlash)) != NULL) {
Lst_Close(path);
return file;
}
@@ -1179,15 +1179,15 @@ Dir_FindFile(const char *name, Lst path)
Lst_Open(path);
while ((ln = Lst_Next(path)) != NULL) {
- p = LstNode_Datum(ln);
- if (p == dotLast)
+ dir = LstNode_Datum(ln);
+ if (dir == dotLast)
continue;
- if (p == dot) {
+ if (dir == dot) {
if (checkedDot)
continue;
checkedDot = TRUE;
}
- if ((file = DirLookupSubdir(p, name)) != NULL) {
+ if ((file = DirLookupSubdir(dir, name)) != NULL) {
Lst_Close(path);
return file;
}
@@ -1237,10 +1237,10 @@ Dir_FindFile(const char *name, Lst path)
Lst_Open(path);
while ((ln = Lst_Next(path)) != NULL) {
- p = LstNode_Datum(ln);
- if (p == dotLast)
+ dir = LstNode_Datum(ln);
+ if (dir == dotLast)
continue;
- if ((file = DirLookupAbs(p, name, base)) != NULL) {
+ if ((file = DirLookupAbs(dir, name, base)) != NULL) {
Lst_Close(path);
if (file[0] == '\0') {
free(file);
@@ -1292,10 +1292,10 @@ Dir_FindFile(const char *name, Lst path)
if (ln == NULL) {
return NULL;
} else {
- p = LstNode_Datum(ln);
+ dir = LstNode_Datum(ln);
}
- if (Hash_FindEntry(&p->files, base) != NULL) {
+ if (Hash_FindEntry(&dir->files, base) != NULL) {
return bmake_strdup(name);
} else {
return NULL;
@@ -1500,11 +1500,11 @@ Dir_MTime(GNode *gn, Boolean recheck)
* read and hashed.
*-----------------------------------------------------------------------
*/
-Path *
+CachedDir *
Dir_AddDir(Lst path, const char *name)
{
- LstNode ln = NULL; /* node in case Path structure is found */
- Path *p = NULL; /* pointer to new Path structure */
+ LstNode ln = NULL; /* node in case CachedDir structure is found */
+ CachedDir *dir = NULL; /* the added directory */
DIR *d; /* for reading directory */
struct dirent *dp; /* entry in directory */
@@ -1520,22 +1520,22 @@ Dir_AddDir(Lst path, const char *name)
if (path != NULL)
ln = Lst_Find(openDirectories, DirFindName, name);
if (ln != NULL) {
- p = LstNode_Datum(ln);
- if (Lst_FindDatum(path, p) == NULL) {
- p->refCount += 1;
- Lst_Append(path, p);
+ dir = LstNode_Datum(ln);
+ if (Lst_FindDatum(path, dir) == NULL) {
+ dir->refCount += 1;
+ Lst_Append(path, dir);
}
- return p;
+ return dir;
}
DIR_DEBUG1("Caching %s ...", name);
if ((d = opendir(name)) != NULL) {
- p = bmake_malloc(sizeof(Path));
- p->name = bmake_strdup(name);
- p->hits = 0;
- p->refCount = 1;
- Hash_InitTable(&p->files);
+ dir = bmake_malloc(sizeof(CachedDir));
+ dir->name = bmake_strdup(name);
+ dir->hits = 0;
+ dir->refCount = 1;
+ Hash_InitTable(&dir->files);
while ((dp = readdir(d)) != NULL) {
#if defined(sun) && defined(d_ino) /* d_ino is a sunos4 #define for d_fileno */
@@ -1548,15 +1548,15 @@ Dir_AddDir(Lst path, const char *name)
continue;
}
#endif /* sun && d_ino */
- (void)Hash_CreateEntry(&p->files, dp->d_name, NULL);
+ (void)Hash_CreateEntry(&dir->files, dp->d_name, NULL);
}
(void)closedir(d);
- Lst_Append(openDirectories, p);
+ Lst_Append(openDirectories, dir);
if (path != NULL)
- Lst_Append(path, p);
+ Lst_Append(path, dir);
}
DIR_DEBUG0("done\n");
- return p;
+ return dir;
}
/*-
@@ -1572,7 +1572,8 @@ Dir_AddDir(Lst path, const char *name)
void *
Dir_CopyDir(void *p)
{
- ((Path *)p)->refCount += 1;
+ CachedDir *dir = (CachedDir *)p;
+ dir->refCount += 1;
return p;
}
@@ -1609,10 +1610,10 @@ Dir_MakeFlags(const char *flag, Lst path
if (path != NULL) {
Lst_Open(path);
while ((ln = Lst_Next(path)) != NULL) {
- Path *p = LstNode_Datum(ln);
+ CachedDir *dir = LstNode_Datum(ln);
Buf_AddStr(&buf, " ");
Buf_AddStr(&buf, flag);
- Buf_AddStr(&buf, p->name);
+ Buf_AddStr(&buf, dir->name);
}
Lst_Close(path);
}
@@ -1627,33 +1628,33 @@ Dir_MakeFlags(const char *flag, Lst path
* for the suffixes module when destroying a search path.
*
* Input:
- * pp The directory descriptor to nuke
+ * dirp The directory descriptor to nuke
*
* Results:
* None.
*
* Side Effects:
* If no other path references this directory (refCount == 0),
- * the Path and all its data are freed.
+ * the CachedDir and all its data are freed.
*
*-----------------------------------------------------------------------
*/
void
-Dir_Destroy(void *pp)
+Dir_Destroy(void *dirp)
{
- Path *p = (Path *)pp;
- p->refCount -= 1;
+ CachedDir *dir = dirp;
+ dir->refCount -= 1;
- if (p->refCount == 0) {
+ if (dir->refCount == 0) {
LstNode node;
- node = Lst_FindDatum(openDirectories, p);
+ node = Lst_FindDatum(openDirectories, dir);
if (node != NULL)
Lst_Remove(openDirectories, node);
- Hash_DeleteTable(&p->files);
- free(p->name);
- free(p);
+ Hash_DeleteTable(&dir->files);
+ free(dir->name);
+ free(dir);
}
}
@@ -1678,8 +1679,8 @@ void
Dir_ClearPath(Lst path)
{
while (!Lst_IsEmpty(path)) {
- Path *p = Lst_Dequeue(path);
- Dir_Destroy(p);
+ CachedDir *dir = Lst_Dequeue(path);
+ Dir_Destroy(dir);
}
}
@@ -1706,13 +1707,13 @@ void
Dir_Concat(Lst path1, Lst path2)
{
LstNode ln;
- Path *p;
+ CachedDir *dir;
for (ln = Lst_First(path2); ln != NULL; ln = LstNode_Next(ln)) {
- p = LstNode_Datum(ln);
- if (Lst_FindDatum(path1, p) == NULL) {
- p->refCount += 1;
- Lst_Append(path1, p);
+ dir = LstNode_Datum(ln);
+ if (Lst_FindDatum(path1, dir) == NULL) {
+ dir->refCount += 1;
+ Lst_Append(path1, dir);
}
}
}
@@ -1738,9 +1739,9 @@ Dir_PrintDirectories(void)
Lst_Open(openDirectories);
while ((ln = Lst_Next(openDirectories)) != NULL) {
- Path *p = LstNode_Datum(ln);
- fprintf(debug_file, "# %-20s %10d\t%4d\n", p->name, p->refCount,
- p->hits);
+ CachedDir *dir = LstNode_Datum(ln);
+ fprintf(debug_file, "# %-20s %10d\t%4d\n", dir->name, dir->refCount,
+ dir->hits);
}
Lst_Close(openDirectories);
}
@@ -1748,7 +1749,8 @@ Dir_PrintDirectories(void)
static int
DirPrintDir(void *p, void *dummy MAKE_ATTR_UNUSED)
{
- fprintf(debug_file, "%s ", ((Path *)p)->name);
+ const CachedDir *dir = p;
+ fprintf(debug_file, "%s ", dir->name);
return 0;
}
Index: src/usr.bin/make/dir.h
diff -u src/usr.bin/make/dir.h:1.23 src/usr.bin/make/dir.h:1.24
--- src/usr.bin/make/dir.h:1.23 Wed Sep 2 04:08:54 2020
+++ src/usr.bin/make/dir.h Tue Sep 22 02:26:22 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: dir.h,v 1.23 2020/09/02 04:08:54 rillig Exp $ */
+/* $NetBSD: dir.h,v 1.24 2020/09/22 02:26:22 rillig Exp $ */
/*
* Copyright (c) 1988, 1989, 1990 The Regents of the University of California.
@@ -77,13 +77,13 @@
/* A cache of a directory, remembering all the files that exist in that
* directory. */
-typedef struct {
+typedef struct CachedDir {
char *name; /* Name of directory */
int refCount; /* Number of paths with this directory */
int hits; /* the number of times a file in this
* directory has been found */
Hash_Table files; /* Hash set of files in directory */
-} Path;
+} CachedDir;
struct make_stat {
time_t mst_mtime;
@@ -101,7 +101,7 @@ void Dir_Expand(const char *, Lst, Lst);
char *Dir_FindFile(const char *, Lst);
Boolean Dir_FindHereOrAbove(const char *, const char *, char *, int);
int Dir_MTime(GNode *, Boolean);
-Path *Dir_AddDir(Lst, const char *);
+CachedDir *Dir_AddDir(Lst, const char *);
char *Dir_MakeFlags(const char *, Lst);
void Dir_ClearPath(Lst);
void Dir_Concat(Lst, Lst);
Index: src/usr.bin/make/parse.c
diff -u src/usr.bin/make/parse.c:1.320 src/usr.bin/make/parse.c:1.321
--- src/usr.bin/make/parse.c:1.320 Mon Sep 14 21:23:58 2020
+++ src/usr.bin/make/parse.c Tue Sep 22 02:26:22 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: parse.c,v 1.320 2020/09/14 21:23:58 rillig Exp $ */
+/* $NetBSD: parse.c,v 1.321 2020/09/22 02:26:22 rillig Exp $ */
/*
* Copyright (c) 1988, 1989, 1990, 1993
@@ -131,7 +131,7 @@
#include "pathnames.h"
/* "@(#)parse.c 8.3 (Berkeley) 3/19/94" */
-MAKE_RCSID("$NetBSD: parse.c,v 1.320 2020/09/14 21:23:58 rillig Exp $");
+MAKE_RCSID("$NetBSD: parse.c,v 1.321 2020/09/22 02:26:22 rillig Exp $");
/* types and constants */
@@ -1988,9 +1988,9 @@ Parse_DoVar(char *line, GNode *ctxt)
Main_ExportMAKEFLAGS(FALSE); /* re-export MAKEFLAGS */
else if (strcmp(line, ".CURDIR") == 0) {
/*
- * Somone is being (too?) clever...
+ * Someone is being (too?) clever...
* Let's pretend they know what they are doing and
- * re-initialize the 'cur' Path.
+ * re-initialize the 'cur' CachedDir.
*/
Dir_InitCur(cp);
Dir_SetPATH();
