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* external.cc (cygwin_internal): Implement CW_CMDLINE.

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* 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.
This commit is contained in:
Christopher Faylor
2002-10-30 21:05:18 +00:00
parent 4c8eba2cf3
commit 831d6fa520
13 changed files with 434 additions and 38 deletions
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13
winsup/cygwin/sigproc.cc
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@@ -1014,6 +1014,15 @@ stopped_or_terminated (waitq *parent_w, _pinfo *child)
return -potential_match;
}
static void
talktome ()
{
winpids pids;
for (unsigned i = 0; i < pids.npids; i++)
if (pids[i]->hello_pid == myself->pid)
pids[i]->commune_recv ();
}
/* Process signals by waiting for a semaphore to become signaled.
* Then scan an in-memory array representing queued signals.
* Executes in a separate thread.
@@ -1143,6 +1152,10 @@ wait_sig (VOID *self)
strace.hello ();
break;
case __SIGCOMMUNE:
talktome ();
break;
/* A normal UNIX signal */
default:
sigproc_printf ("Got signal %d", sig);