* cygheap.cc (init_cheap): Move username initialization.

(cygheap_init): Here.
* shared_info.h (mount_info): Add a sys_mount_table_counter field.
(shared_info): Ditto.
* path.cc (mount_info::conv_to_win32_path): Check that our mount table is in
sync with the system mount table and reinitialize it if not.
(mount_info::add_reg_mount): Bump sys_mount_table counters if the system mount
table changes.
(mount_info::del_reg_mount): Ditto.
(mount_info::write_cygdrive_info_to_registry): Ditto.
(mount_info::remove_cygdrive_info_from_registry): Ditto.

winsup/cygwin/ChangeLog

@@ -1,3 +1,17 @@
+Sun Jan 28 01:18:22 2001  Christopher Faylor <cgf@cygnus.com>
+
+	* cygheap.cc (init_cheap): Move username initialization.
+	(cygheap_init): Here.
+	* shared_info.h (mount_info): Add a sys_mount_table_counter field.
+	(shared_info): Ditto.
+	* path.cc (mount_info::conv_to_win32_path): Check that our mount table
+	is in sync with the system mount table and reinitialize it if not.
+	(mount_info::add_reg_mount): Bump sys_mount_table counters if the
+	system mount table changes.
+	(mount_info::del_reg_mount): Ditto.
+	(mount_info::write_cygdrive_info_to_registry): Ditto.
+	(mount_info::remove_cygdrive_info_from_registry): Ditto.
+
 Sun Jan 28 00:28:30 2001  Christopher Faylor <cgf@cygnus.com>
 
 	Throughout, change 'cygwin_shared.mount' to 'mount_table'.

winsup/cygwin/cygheap.cc

@@ -32,14 +32,6 @@ init_cheap ()
   if (!cygheap)
     api_fatal ("Couldn't reserve space for cygwin's heap, %E");
   cygheap_max = cygheap + 1;
-
-  char username[MAX_USER_NAME];
-  DWORD username_len = MAX_USER_NAME;
-
-  if (!GetUserName (username, &username_len))
-    cygheap->user.set_name ("unknown");
-  else
-    cygheap->user.set_name (username);
 }
 
 #define pagetrunc(x) ((void *) (((DWORD) (x)) & ~(4096 - 1)))
@@ -75,6 +67,14 @@ cygheap_init ()
 {
   cygheap_protect = new_muto (FALSE, "cygheap_protect");
   _csbrk (0);
+
+  char username[MAX_USER_NAME];
+  DWORD username_len = MAX_USER_NAME;
+
+  if (!GetUserName (username, &username_len))
+    cygheap->user.set_name ("unknown");
+  else
+    cygheap->user.set_name (username);
 }
 
 /* Copyright (C) 1997, 2000 DJ Delorie */

winsup/cygwin/path.cc

@@ -979,6 +979,11 @@ mount_info::conv_to_win32_path (const char *src_path, char *win32_path,
 				char *full_win32_path, DWORD &devn, int &unit,
 				unsigned *flags)
 {
+  while (sys_mount_table_counter < cygwin_shared->sys_mount_table_counter)
+    {
+      init ();
+      sys_mount_table_counter++;
+    }
   int src_path_len = strlen (src_path);
   int trailing_slash_p = (src_path_len > 1
 			  && SLASH_P (src_path[src_path_len - 1]));
@@ -1485,6 +1490,9 @@ mount_info::add_reg_mount (const char * native_path, const char * posix_path, un
       if (res != ERROR_SUCCESS)
 	goto err;
       res = subkey.set_int ("flags", mountflags);
+
+      sys_mount_table_counter++;
+      cygwin_shared->sys_mount_table_counter++;
     }
 
   return 0; /* Success! */
@@ -1502,7 +1510,7 @@ mount_info::del_reg_mount (const char * posix_path, unsigned flags)
 {
   int res;
 
-  if ((flags & MOUNT_SYSTEM) == 0)	/* Delete from user registry */
+  if (!(flags & MOUNT_SYSTEM))	/* Delete from user registry */
     {
       reg_key reg_user (KEY_ALL_ACCESS,
 			CYGWIN_INFO_CYGWIN_MOUNT_REGISTRY_NAME, NULL);
@@ -1510,6 +1518,8 @@ mount_info::del_reg_mount (const char * posix_path, unsigned flags)
     }
   else					/* Delete from system registry */
     {
+      sys_mount_table_counter++;
+      cygwin_shared->sys_mount_table_counter++;
       reg_key reg_sys (HKEY_LOCAL_MACHINE, KEY_ALL_ACCESS, "SOFTWARE",
 		       CYGWIN_INFO_CYGNUS_REGISTRY_NAME,
 		       CYGWIN_INFO_CYGWIN_REGISTRY_NAME,
@@ -1586,6 +1596,12 @@ mount_info::write_cygdrive_info_to_registry (const char *cygdrive_prefix, unsign
   /* Determine whether to modify user or system cygdrive path prefix. */
   HKEY top = (flags & MOUNT_SYSTEM) ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
 
+  if (flags & MOUNT_SYSTEM)
+    {
+      sys_mount_table_counter++;
+      cygwin_shared->sys_mount_table_counter++;
+    }
+
   /* reg_key for user path prefix in HKEY_CURRENT_USER or system path prefix in
      HKEY_LOCAL_MACHINE.  */
   reg_key r (top, KEY_ALL_ACCESS, "SOFTWARE",
@@ -1621,8 +1637,7 @@ mount_info::write_cygdrive_info_to_registry (const char *cygdrive_prefix, unsign
      appropriate:
        1. setting user path prefix, or
        2. overwriting (a previous) system path prefix */
-  if ((flags & MOUNT_SYSTEM) == 0 ||
+  if (!(flags & MOUNT_SYSTEM) || (mount_table->cygdrive_flags & MOUNT_SYSTEM))
-      (mount_table->cygdrive_flags & MOUNT_SYSTEM) != 0)
     {
       slashify (cygdrive_prefix, mount_table->cygdrive, 1);
       mount_table->cygdrive_flags = flags;
@@ -1638,6 +1653,12 @@ mount_info::remove_cygdrive_info_from_registry (const char *cygdrive_prefix, uns
   /* Determine whether to modify user or system cygdrive path prefix. */
   HKEY top = (flags & MOUNT_SYSTEM) ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER;
 
+  if (flags & MOUNT_SYSTEM)
+    {
+      sys_mount_table_counter++;
+      cygwin_shared->sys_mount_table_counter++;
+    }
+
   /* reg_key for user path prefix in HKEY_CURRENT_USER or system path prefix in
      HKEY_LOCAL_MACHINE.  */
   reg_key r (top, KEY_ALL_ACCESS, "SOFTWARE",
@@ -1728,7 +1749,7 @@ sort_by_posix_name (const void *a, const void *b)
   if (res == 0)
    {
      /* need to select between user and system mount to same POSIX path */
-     if ((bp->flags & MOUNT_SYSTEM) == 0) /* user mount */
+     if (!(bp->flags & MOUNT_SYSTEM))	/* user mount */
       return 1;
      else
       return -1;
@@ -1764,7 +1785,7 @@ sort_by_native_name (const void *a, const void *b)
   if (res == 0)
    {
      /* need to select between user and system mount to same POSIX path */
-     if ((bp->flags & MOUNT_SYSTEM) == 0) /* user mount */
+     if (!(bp->flags & MOUNT_SYSTEM))	/* user mount */
       return 1;
      else
       return -1;

winsup/cygwin/shared_info.h

@@ -47,6 +47,7 @@ class mount_info
 {
 public:
   DWORD version;
+  DWORD sys_mount_table_counter;
   int nmounts;
   mount_item mount[MAX_MOUNTS];
 
@@ -138,14 +139,14 @@ public:
 class shared_info
 {
   DWORD inited;
-
 public:
   int heap_chunk_in_mb;
-  unsigned heap_chunk_size (void);
+  DWORD sys_mount_table_counter;
 
   tty_list tty;
   delqueue_list delqueue;
   void initialize (void);
+  unsigned heap_chunk_size (void);
 };
 
 extern shared_info *cygwin_shared;