1 files changed, 110 insertions, 0 deletions
diff --git a/winsup/cygwin/child_info.h b/winsup/cygwin/child_info.h
new file mode 100644
index 00000000000..e3d643a4f96
--- /dev/null
+++ b/winsup/cygwin/child_info.h
@@ -0,0 +1,110 @@
+/* child_info.h: shared child info for cygwin
+
+   Copyright 2000, 2001, 2002, 2003, 2004 Red Hat, Inc.
+
+This file is part of Cygwin.
+
+This software is a copyrighted work licensed under the terms of the
+Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
+details. */
+
+#include <setjmp.h>
+
+enum
+{
+  _PROC_EXEC,
+  _PROC_SPAWN,
+  _PROC_FORK,
+  _PROC_WHOOPS
+};
+
+#define OPROC_MAGIC_MASK 0xff00ff00
+#define OPROC_MAGIC_GENERIC 0xaf00f000
+
+#define PROC_MAGIC_GENERIC 0xaf00fa00
+
+#define PROC_EXEC (_PROC_EXEC)
+#define PROC_SPAWN (_PROC_SPAWN)
+#define PROC_FORK (_PROC_FORK)
+
+#define EXEC_MAGIC_SIZE sizeof(child_info)
+
+#define CURR_CHILD_INFO_MAGIC 0x568a5527U
+
+/* NOTE: Do not make gratuitous changes to the names or organization of the
+   below class.  The layout is checksummed to determine compatibility between
+   different cygwin versions. */
+class child_info
+{
+public:
+  DWORD zero[4];	// must be zeroed
+  DWORD cb;		// size of this record
+  DWORD intro;		// improbable string
+  unsigned long magic;	// magic number unique to child_info
+  unsigned short type;	// type of record, exec, spawn, fork
+  HANDLE subproc_ready;	// used for synchronization with parent
+  HANDLE user_h;
+  HANDLE parent;
+  init_cygheap *cygheap;
+  void *cygheap_max;
+  DWORD cygheap_reserve_sz;
+  HANDLE cygheap_h;
+  unsigned fhandler_union_cb;
+};
+
+class mount_info;
+class _pinfo;
+
+class child_info_fork: public child_info
+{
+public:
+  HANDLE forker_finished;// for synchronization with child
+  DWORD stacksize;	// size of parent stack
+  jmp_buf jmp;		// where child will jump to
+  void *stacktop;	// location of top of parent stack
+  void *stackbottom;	// location of bottom of parent stack
+};
+
+class fhandler_base;
+
+class cygheap_exec_info
+{
+public:
+  char *old_title;
+  int argc;
+  char **argv;
+  int envc;
+  char **envp;
+  HANDLE myself_pinfo;
+};
+
+class child_info_spawn: public child_info
+{
+public:
+  cygheap_exec_info *moreinfo;
+  HANDLE hexec_proc;
+
+  child_info_spawn (): moreinfo (NULL) {}
+  ~child_info_spawn ()
+  {
+    if (moreinfo)
+      {
+	if (moreinfo->old_title)
+	  cfree (moreinfo->old_title);
+	if (moreinfo->envp)
+	  {
+	    for (char **e = moreinfo->envp; *e; e++)
+	      cfree (*e);
+	    cfree (moreinfo->envp);
+	  }
+	CloseHandle (moreinfo->myself_pinfo);
+	cfree (moreinfo);
+      }
+  }
+};
+
+void __stdcall init_child_info (DWORD, child_info *, HANDLE);
+
+extern child_info *child_proc_info;
+extern child_info_spawn *spawn_info __attribute__ ((alias ("child_proc_info")));
+extern child_info_fork *fork_info __attribute__ ((alias ("child_proc_info")));