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Diffstat (limited to 'Build/source/texk/kpathsea/mingw32.c')
-rw-r--r--Build/source/texk/kpathsea/mingw32.c219
1 files changed, 17 insertions, 202 deletions
diff --git a/Build/source/texk/kpathsea/mingw32.c b/Build/source/texk/kpathsea/mingw32.c
index 32d0f379bdb..69de2af2e1b 100644
--- a/Build/source/texk/kpathsea/mingw32.c
+++ b/Build/source/texk/kpathsea/mingw32.c
@@ -35,10 +35,15 @@ static int static_variable_mingw32_c = 0;
#include <shlobj.h>
#include <errno.h>
-
/* Emulate getpwuid, getpwnam and others. */
-char *get_home_directory(void);
+typedef HWND (WINAPI *pGetDesktopWindow)(void);
+
+typedef HRESULT (WINAPI * pSHGetSpecialFolderPathA)(HWND, LPSTR, int, BOOL);
+
+extern int __cdecl _set_osfhnd (int fd, long h);
+extern int __cdecl _free_osfhnd (int fd);
+
int _parse_root (char * name, char ** pPath);
void
@@ -70,42 +75,27 @@ init_user_info (void)
}
}
-static char *cached_home_directory;
-
-
-void
-uncache_home_directory (void)
-{
- cached_home_directory = NULL; /* in some cases, this may cause the leaking
- of a few bytes */
-}
-
/* This function could go away */
void
set_home_warning (void)
{
}
-typedef HWND (WINAPI *pGetDesktopWindow)(void);
-typedef HRESULT (WINAPI * pSHGetSpecialFolderPathA)(HWND, LPSTR, int, BOOL);
-
/* Returns the home directory, in external format */
char *
get_home_directory (void)
{
+ char *found_home_directory = NULL;
- if (cached_home_directory != NULL)
- goto done;
-
- if ((cached_home_directory = getenv("HOME")) != NULL) {
+ if ((found_home_directory = getenv("HOME")) != NULL) {
char q[MAXPATHLEN];
/* In case it is %HOMEDRIVE%%HOMEPATH% */
- if (ExpandEnvironmentStrings(cached_home_directory, q, sizeof(q)) == 0) {
+ if (ExpandEnvironmentStrings(found_home_directory, q, sizeof(q)) == 0) {
/* Error */
- cached_home_directory = NULL;
+ found_home_directory = NULL;
}
else {
- cached_home_directory = xstrdup(q);
+ found_home_directory = xstrdup(q);
goto done;
}
}
@@ -114,7 +104,7 @@ get_home_directory (void)
char *homedrive, *homepath;
if ((homedrive = getenv("HOMEDRIVE")) != NULL &&
(homepath = getenv("HOMEPATH")) != NULL) {
- cached_home_directory = concat(homedrive, homepath);
+ found_home_directory = concat(homedrive, homepath);
goto done;
}
}
@@ -138,11 +128,11 @@ get_home_directory (void)
if (hwnd && (h = LoadLibrary("shell32.dll"))) {
if ((p1 = (pSHGetSpecialFolderPathA)GetProcAddress(h, "SHGetSpecialFolderPathA")))
if ((*p1)(hwnd, q, CSIDL_PERSONAL, TRUE)) {
- cached_home_directory = xstrdup(q);
+ found_home_directory = xstrdup(q);
}
FreeLibrary(h);
}
- if (cached_home_directory) goto done;
+ if (found_home_directory) goto done;
}
if (1) {
@@ -150,20 +140,14 @@ get_home_directory (void)
" directory, and will be using the value:\n"
" %s\n"
" This is probably incorrect.\n",
- cached_home_directory
+ found_home_directory
);
}
done:
- return cached_home_directory;
+ return found_home_directory;
}
-extern int __cdecl _set_osfhnd (int fd, long h);
-extern int __cdecl _free_osfhnd (int fd);
-
-/* Global referenced by various functions. */
-volume_info_data volume_info;
-
/* Consider cached volume information to be stale if older than 10s,
at least for non-local drives. Info for fixed drives is never stale. */
#define DRIVE_INDEX( c ) ( (c) <= 'Z' ? (c) - 'A' : (c) - 'a' )
@@ -171,175 +155,6 @@ volume_info_data volume_info;
( ( isalpha (root_dir[0]) ) \
|| GetTickCount () - info->timestamp < 10000 )
-/* Cache support functions. */
-
-/* this typedef will eventually replace the two separate static
- variables volume_cache and volume_info
-*/
-
-typedef struct win32_volumes {
- volume_info_data info;
- volume_info_data *cache;
-} win32_volumes ;
-
-/* Simple linked list with linear search is sufficient. */
-static volume_info_data *volume_cache = NULL;
-
-static volume_info_data *
-lookup_volume_info (char * root_dir)
-{
- volume_info_data * info;
-
- for (info = volume_cache; info; info = info->next)
- if (stricmp (info->root_dir, root_dir) == 0)
- break;
- return info;
-}
-
-static void
-add_volume_info (char * root_dir, volume_info_data * info)
-{
- info->root_dir = xstrdup (root_dir);
- info->next = volume_cache;
- volume_cache = info;
-}
-
-
-/* Wrapper for GetVolumeInformation, which uses caching to avoid
- performance penalty (~2ms on 486 for local drives, 7.5ms for local
- cdrom drive, ~5-10ms or more for remote drives on LAN). */
-volume_info_data *
-GetCachedVolumeInformation (char * root_dir)
-{
- volume_info_data * info;
- char default_root[ MAX_PATH ];
-
- /* NULL for root_dir means use root from current directory. */
- if (root_dir == NULL)
- {
- if (GetCurrentDirectory (MAX_PATH, default_root) == 0)
- return NULL;
- _parse_root (default_root, &root_dir);
- *root_dir = 0;
- root_dir = default_root;
- }
-
- /* Local fixed drives can be cached permanently. Removable drives
- cannot be cached permanently, since the volume name and serial
- number (if nothing else) can change. Remote drives should be
- treated as if they are removable, since there is no sure way to
- tell whether they are or not. Also, the UNC association of drive
- letters mapped to remote volumes can be changed at any time (even
- by other processes) without notice.
-
- As a compromise, so we can benefit from caching info for remote
- volumes, we use a simple expiry mechanism to invalidate cache
- entries that are more than ten seconds old. */
-
- info = lookup_volume_info (root_dir);
-
- if (info == NULL || ! VOLINFO_STILL_VALID (root_dir, info))
- {
- char name[ 256 ];
- DWORD serialnum;
- DWORD maxcomp;
- DWORD flags;
- char type[ 256 ];
-
- /* Info is not cached, or is stale. */
- if (!GetVolumeInformation (root_dir,
- name, sizeof (name),
- &serialnum,
- &maxcomp,
- &flags,
- type, sizeof (type)))
- return NULL;
-
- /* Cache the volume information for future use, overwriting existing
- entry if present. */
- if (info == NULL)
- {
- info = (volume_info_data *) xmalloc (sizeof (volume_info_data));
- add_volume_info (root_dir, info);
- }
- else
- {
- free (info->name);
- free (info->type);
- }
-
- info->name = xstrdup (name);
- info->serialnum = serialnum;
- info->maxcomp = maxcomp;
- info->flags = flags;
- info->type = xstrdup (type);
- info->timestamp = GetTickCount ();
- }
-
- return info;
-}
-
-/* Get information on the volume where name is held; set path pointer to
- start of pathname in name (past UNC header\volume header if present). */
-int
-get_volume_info (const char * name, const char ** pPath)
-{
- char temp[MAX_PATH];
- char *rootname = NULL; /* default to current volume */
- volume_info_data * info;
-
- if (name == NULL)
- return FALSE;
-
- /* find the root name of the volume if given */
- if (isalpha (name[0]) && name[1] == ':')
- {
- rootname = temp;
- temp[0] = *name++;
- temp[1] = *name++;
- temp[2] = '\\';
- temp[3] = 0;
- }
- else if (IS_DIR_SEP (name[0]) && IS_DIR_SEP (name[1]))
- {
- char *str = temp;
- int slashes = 4;
- rootname = temp;
- do
- {
- if (IS_DIR_SEP (*name) && --slashes == 0)
- break;
- *str++ = *name++;
- }
- while ( *name );
-
- *str++ = '\\';
- *str = 0;
- }
-
- if (pPath)
- *pPath = name;
-
- info = GetCachedVolumeInformation (rootname);
- if (info != NULL)
- {
- /* Set global referenced by other functions. */
- volume_info = *info;
- return TRUE;
- }
- return FALSE;
-}
-
-/* Determine if volume is FAT format (ie. only supports short 8.3
- names); also set path pointer to start of pathname in name. */
-int
-is_fat_volume (const char * name, const char ** pPath)
-{
- if (get_volume_info (name, pPath))
- return (volume_info.maxcomp == 12);
- return FALSE;
-}
-
/* Normalize filename by converting all path separators to
the specified separator. Also conditionally convert upper
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-15 12:03:43 +0000