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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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27
winsup/cygwin/pinfo.h
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@@ -16,7 +16,7 @@ enum
{
__SIGFLUSH = -2,
__SIGSTRACE = -1,
__SIGUNUSED = 0,
__SIGCOMMUNE = 0,
__SIGOFFSET = 2
};
@@ -25,6 +25,17 @@ enum
#include <sys/resource.h>
#include "thread.h"
struct commune_result
{
char *s;
int n;
};
enum picom
{
PICOM_CMDLINE = 1
};
class _pinfo
{
public:
@@ -81,6 +92,11 @@ public:
/* Non-zero if process was stopped by a signal. */
char stopsig;
/* commune */
pid_t hello_pid;
HANDLE tothem;
HANDLE fromthem;
void exit (UINT n, bool norecord = 0) __attribute__ ((noreturn, regparm(2)));
@@ -119,12 +135,19 @@ public:
}
inline void setthread2signal (void *thr) {thread2signal = (pthread *) thr;}
void commune_recv ();
commune_result commune_send (DWORD);
bool alive ();
char *cmdline (size_t &);
friend void __stdcall set_myself (pid_t, HANDLE);
private:
struct sigaction sigs[NSIG];
sigset_t sig_mask; /* one set for everything to ignore. */
LONG _sigtodo[NSIG + __SIGOFFSET];
pthread *thread2signal; // NULL means means thread any other means a pthread
pthread *thread2signal; // NULL means thread any other means a pthread
CRITICAL_SECTION lock;
};
class pinfo