* external.cc (cygwin_internal): Implement CW_CMDLINE.

* pinfo.h (SIGCOMMUNE): New signal type.
(commune_result): New structure for commune functions.
(picom): New enum for commune functions.
(_pinfo::hello_pid): New.  Pid who's communicating with me.
(_pinfo::tothem): New.  Handle of communicating pipe.
(_pinfo::fromthem): Ditto.
(_pinfo::commune_recv): Declare.
(_pinfo::commune_send): Declare.
(_pinfo::alive): Declare.
(_pinfo::cmdline): Declare.
(_pinfo::lock): Declare.
* pinfo.cc (set_myself): Initialize new _pinfo lock.
(_pinfo::alive): Define.  Determines if process still exists.
(_pinfo::commune_recv): Define.  Receive info from another cooperating process.
(_pinfo::commune_send): Define.  Send info to another cooperating process.
(_pinfo::cmdline): Define.  Determine command line of a given process.
* include/sys/cygwin.h (CW_CMDLINE): Define.
*sigproc.cc (talktome): Communicate with any processes who want to talk to me.
(wait_sig): Honor __SIGCOMMUNE.
* fhandler.cc (fhandler_virtual::fixup_after_exec): Declare.
* fhandler_proc.cc: Use malloc/free/realloc throughout rather than cmalloc
since buffers don't need to be propagated to subprocesses.
* fhandler_registry.cc: Ditto.
* fhandler_virtual.cc: Ditto.
(fhandler_virtual::fixup_after_exec): Define.
* fhandler_process.cc: Ditto for malloc/free/realloc.
(process_listin): Add "cmdline".
(fhandler_process::fill_filebuf): Implement PROCESS_CMDLINE.
* miscfuncs.cc (isalpha_array): New array populated with xor values for alpha
characters to switch from one case to another.
* string.h (cygwin_strcasematch): New asm implementation of case match.
* string.h (cygwin_nstrcasematch): New asm implementation of counted case
match.

1 files changed, 10 insertions, 3 deletions

diff --git a/winsup/cygwin/fhandler_virtual.cc b/winsup/cygwin/fhandler_virtual.cc
index 05b9b0f6c..937caf352 100644
--- a/winsup/cygwin/fhandler_virtual.cc
+++ b/winsup/cygwin/fhandler_virtual.cc
@@ -34,10 +34,17 @@ fhandler_virtual::fhandler_virtual (DWORD devtype):
 fhandler_virtual::~fhandler_virtual ()
 {
   if (filebuf)
-    cfree (filebuf);
+    free (filebuf);
   filebuf = NULL;
 }
 
+void
+fhandler_virtual::fixup_after_exec (HANDLE)
+{
+  if (filebuf)
+    filebuf = NULL;
+}
+
 DIR *
 fhandler_virtual::opendir (path_conv& pc)
 {
@@ -143,7 +150,7 @@ fhandler_virtual::dup (fhandler_base * child)
   if (!ret)
     {
       fhandler_virtual *fhproc_child = (fhandler_virtual *) child;
-      fhproc_child->filebuf = (char *) cmalloc (HEAP_BUF, filesize);
+      fhproc_child->filebuf = (char *) malloc (filesize);
       fhproc_child->bufalloc = fhproc_child->filesize = filesize;
       fhproc_child->position = position;
       memcpy (fhproc_child->filebuf, filebuf, filesize);
@@ -156,7 +163,7 @@ int
 fhandler_virtual::close ()
 {
   if (filebuf)
-    cfree (filebuf);
+    free (filebuf);
   filebuf = NULL;
   bufalloc = (size_t) -1;
   cygwin_shared->delqueue.process_queue ();