* 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, 5 insertions, 9 deletions

diff --git a/winsup/cygwin/fhandler_proc.cc b/winsup/cygwin/fhandler_proc.cc
index 86c3c81fb..f887e8cb7 100644
--- a/winsup/cygwin/fhandler_proc.cc
+++ b/winsup/cygwin/fhandler_proc.cc
@@ -327,7 +327,7 @@ fhandler_proc::fill_filebuf ()
 	    uname (&uts_name);
 		bufalloc = strlen (uts_name.sysname) + 1 + strlen (uts_name.release) +
 			  1 + strlen (uts_name.version) + 2;
-	    filebuf = (char *) cmalloc (HEAP_BUF, bufalloc);
+	    filebuf = (char *) realloc (filebuf, bufalloc);
 		filesize = __small_sprintf (filebuf, "%s %s %s\n", uts_name.sysname,
 			     uts_name.release, uts_name.version);
 	  }
@@ -335,15 +335,13 @@ fhandler_proc::fill_filebuf ()
       }
     case PROC_UPTIME:
       {
-	if (!filebuf)
-	  filebuf = (char *) cmalloc (HEAP_BUF, bufalloc = 80);
+	filebuf = (char *) realloc (filebuf, bufalloc = 80);
 	filesize = format_proc_uptime (filebuf, bufalloc);
 	break;
       }
     case PROC_STAT:
       {
-	if (!filebuf)
-	  filebuf = (char *) cmalloc (HEAP_BUF, bufalloc = 2048);
+	filebuf = (char *) realloc (filebuf, bufalloc = 2048);
 	filesize = format_proc_stat (filebuf, bufalloc);
 	break;
       }
@@ -354,16 +352,14 @@ fhandler_proc::fill_filebuf ()
 	 * Windows 95/98/me does have the KERNEL/CPUUsage performance counter
 	 * which is similar.
 	 */
-	if (!filebuf)
-	  filebuf = (char *) cmalloc (HEAP_BUF, bufalloc = 16);
+	filebuf = (char *) realloc (filebuf, bufalloc = 16);
 	filesize = __small_sprintf (filebuf, "%u.%02u %u.%02u %u.%02u\n",
 				    0, 0, 0, 0, 0, 0);
 	break;
       }
     case PROC_MEMINFO:
       {
-	if (!filebuf)
-	  filebuf = (char *) cmalloc (HEAP_BUF, bufalloc = 2048);
+	filebuf = (char *) realloc (filebuf, bufalloc = 2048);
 	filesize = format_proc_meminfo (filebuf, bufalloc);
 	break;
       }