* cygheap.h (init_cygheap): New struct holding values that live in the Cygwin

heap.
* child_info.h (child_info): Change pointer type of cygheap to init_cygheap.
* cygheap.cc (init_cheap): Point cygheap_max after contents of cygheap.  Move
some stuff into cygheap.h.
* dir.cc (opendir): Change to use root and rootlen in cygheap rather than in
myself.
(mkdir): Change to use umask in cygheap rather than in myself.
* path.cc: Ditto, throughout.
* syscalls.cc (_open): Ditto.  Change to use umask in cygheap rather than in
myself.
(chroot): Change to allocate root dir on the cygwin heap.
(umask): Change to use umask in cygheap rather than in myself.
(cygwin_bind): Ditto.
* sigproc.cc (proc_subproc): Don't copy umask or root stuff as this happens
automatically now.
* pinfo.h (_pinfo): Migrate stuff out of here and into init_cheap.
* dcrt0.cc (dll_crt0_1): Call cygheap_init later in startup for first cygwin
process.

1 files changed, 27 insertions, 4 deletions

diff --git a/winsup/cygwin/cygheap.h b/winsup/cygwin/cygheap.h
index 8ed3aa3..faa50bf 100644
--- a/winsup/cygwin/cygheap.h
+++ b/winsup/cygwin/cygheap.h
@@ -24,13 +24,36 @@ enum cygheap_types
   HEAP_1_MAX = 100
 };
 
-#define CYGHEAPSIZE ((2000 * sizeof (fhandler_union)) + (2 * 65536))
-
-extern HANDLE cygheap;
-extern HANDLE cygheap_max;
+#define CYGHEAPSIZE ((4000 * sizeof (fhandler_union)) + (2 * 65536))
 
 #define incygheap(s) (cygheap && ((char *) (s) >= (char *) cygheap) && ((char *) (s) <= ((char *) cygheap_max)))
 
+struct _cmalloc_entry
+{
+  union
+  {
+    DWORD b;
+    char *ptr;
+  };
+  struct _cmalloc_entry *prev;
+  char data[0];
+};
+
+
+struct init_cygheap
+{
+  _cmalloc_entry *chain;
+  struct
+  {
+    size_t rootlen;
+    char *root;
+  };
+  mode_t umask;
+};
+
+extern init_cygheap *cygheap;
+extern void *cygheap_max;
+
 extern "C" {
 void __stdcall cfree (void *) __attribute__ ((regparm(1)));
 void __stdcall cygheap_fixup_in_child (HANDLE, bool);