#include <winsock.h>
#endif
+/* Bound by win32-native.el */
+Lisp_Object Qmswindows_construct_process_command_line;
+
/* Arbitrary size limit for code fragments passed to run_in_other_process */
#define FRAGMENT_CODE_SIZE 32
HWND hwnd; /* console window */
};
-/* Control how args are quoted to ensure correct parsing by child
- process. */
-Lisp_Object Vmswindows_quote_process_args;
-
/* Control whether create_child causes the process to inherit Emacs'
console window, or be given a new one of its own. The default is
nil, to allow multiple DOS programs to run on Win95. Having separate
/* ---------------------------- the 95 way ------------------------------- */
static BOOL CALLBACK
-find_child_console (HWND hwnd, struct nt_process_data *cp)
+find_child_console (HWND hwnd, long putada)
{
DWORD thread_id;
DWORD process_id;
+ struct nt_process_data *cp = (struct nt_process_data *) putada;
thread_id = GetWindowThreadProcessId (hwnd, &process_id);
if (process_id == cp->dwProcessId)
static int
send_signal (struct nt_process_data *cp, int pid, int signo)
{
- return send_signal_the_nt_way (cp, pid, signo)
+ return (!mswindows_windows9x_p () && send_signal_the_nt_way (cp, pid, signo))
|| send_signal_the_95_way (cp, pid, signo);
}
if (signo != SIGKILL && signo != SIGTERM
&& signo != SIGQUIT && signo != SIGINT
&& signo != SIGHUP)
- signal_simple_error ("Signal number not supported", make_int (signo));
+ invalid_argument ("Signal number not supported", make_int (signo));
}
\f
/*-----------------------------------------------------------------------*/
nt_finalize_process_data (Lisp_Process *p, int for_disksave)
{
assert (!for_disksave);
+ /* If it's still in the list of processes we are waiting on delete
+ it. */
+ mswindows_unwait_process (p);
if (NT_DATA (p)->h_process)
CloseHandle (NT_DATA (p)->h_process);
}
signal_cannot_launch (Lisp_Object image_file, DWORD err)
{
mswindows_set_errno (err);
- signal_simple_error_2 ("Error starting", image_file, lisp_strerror (errno));
+ report_file_error ("Error starting", image_file);
}
static void
already does this. */
/* Find out whether the application is windowed or not */
- {
- /* SHGetFileInfo tends to return ERROR_FILE_NOT_FOUND on most
- errors. This leads to bogus error message. */
- DWORD image_type;
- char *p = strrchr ((char *)XSTRING_DATA (program), '.');
- if (p != NULL &&
- (stricmp (p, ".exe") == 0 ||
- stricmp (p, ".com") == 0 ||
- stricmp (p, ".bat") == 0 ||
- stricmp (p, ".cmd") == 0))
- {
- image_type = SHGetFileInfo ((char *)XSTRING_DATA (program), 0,NULL,
- 0, SHGFI_EXETYPE);
- }
- else
- {
- char progname[MAX_PATH];
- sprintf (progname, "%s.exe", (char *)XSTRING_DATA (program));
- image_type = SHGetFileInfo (progname, 0, NULL, 0, SHGFI_EXETYPE);
- }
- if (image_type == 0)
- signal_cannot_launch (program, (GetLastError () == ERROR_FILE_NOT_FOUND
- ? ERROR_BAD_FORMAT : GetLastError ()));
- windowed = HIWORD (image_type) != 0;
- }
+ if (xSHGetFileInfoA)
+ {
+ /* SHGetFileInfo tends to return ERROR_FILE_NOT_FOUND on most
+ errors. This leads to bogus error message. */
+ DWORD image_type;
+ char *p = strrchr ((char *)XSTRING_DATA (program), '.');
+ if (p != NULL &&
+ (stricmp (p, ".exe") == 0 ||
+ stricmp (p, ".com") == 0 ||
+ stricmp (p, ".bat") == 0 ||
+ stricmp (p, ".cmd") == 0))
+ {
+ image_type = xSHGetFileInfoA ((char *)XSTRING_DATA (program), 0,NULL,
+ 0, SHGFI_EXETYPE);
+ }
+ else
+ {
+ char progname[MAX_PATH];
+ sprintf (progname, "%s.exe", (char *)XSTRING_DATA (program));
+ image_type = xSHGetFileInfoA (progname, 0, NULL, 0, SHGFI_EXETYPE);
+ }
+ if (image_type == 0)
+ signal_cannot_launch (program, (GetLastError () == ERROR_FILE_NOT_FOUND
+ ? ERROR_BAD_FORMAT : GetLastError ()));
+ windowed = HIWORD (image_type) != 0;
+ }
+ else /* NT 3.5; we have no idea so just guess. */
+ windowed = 0;
/* Decide whether to do I/O on process handles, or just mark the
process exited immediately upon successful launching. We do I/O if the
hmyslurp = htmp;
}
- /* Convert an argv vector into Win32 style command line. */
+ /* Convert an argv vector into Win32 style command line by a call to
+ lisp function `mswindows-construct-process-command-line'
+ (in win32-native.el) */
{
int i;
- Bufbyte **quoted_args;
- int is_dos_app, is_cygnus_app;
- int is_command_shell;
- int do_quoting = 0;
- char escape_char = 0;
-
- nargv++; /* include program; we access argv offset by 1 below */
- quoted_args = alloca_array (Bufbyte *, nargv);
-
- /* Determine whether program is a 16-bit DOS executable, or a Win32
- executable that is implicitly linked to the Cygnus dll (implying it
- was compiled with the Cygnus GNU toolchain and hence relies on
- cygwin.dll to parse the command line - we use this to decide how to
- escape quote chars in command line args that must be quoted). */
- mswindows_executable_type (XSTRING_DATA (program),
- &is_dos_app, &is_cygnus_app);
+ Lisp_Object args_or_ret = Qnil;
+ struct gcpro gcpro1;
- {
- /* #### Bleeeeeeeeeeeeeeeeech!!!! The command shells appear to
- use '^' as a quote character, at least under NT. #### I haven't
- tested 95. If it allows no quoting conventions at all, set
- escape_char to 0 and the code below will work. (e.g. NT tolerates
- no quoting -- this command
-
- cmd /c "ls "/Program Files""
-
- actually works.) */
-
- struct gcpro gcpro1, gcpro2;
- Lisp_Object progname = Qnil;
-
- GCPRO2 (program, progname);
- progname = Ffile_name_nondirectory (program);
- progname = Fdowncase (progname, Qnil);
-
- is_command_shell =
- internal_equal (progname, build_string ("command.com"), 0)
- || internal_equal (progname, build_string ("cmd.exe"), 0);
- UNGCPRO;
- }
-
-#if 0
- /* #### we need to port this. */
- /* On Windows 95, if cmdname is a DOS app, we invoke a helper
- application to start it by specifying the helper app as cmdname,
- while leaving the real app name as argv[0]. */
- if (is_dos_app)
- {
- cmdname = (char*) alloca (MAXPATHLEN);
- if (egetenv ("CMDPROXY"))
- strcpy ((char*)cmdname, egetenv ("CMDPROXY"));
- else
- {
- strcpy ((char*)cmdname, XSTRING_DATA (Vinvocation_directory));
- strcat ((char*)cmdname, "cmdproxy.exe");
- }
- }
-#endif
-
- /* we have to do some conjuring here to put argv and envp into the
- form CreateProcess wants... argv needs to be a space separated/null
- terminated list of parameters, and envp is a null
- separated/double-null terminated list of parameters.
-
- Additionally, zero-length args and args containing whitespace or
- quote chars need to be wrapped in double quotes - for this to work,
- embedded quotes need to be escaped as well. The aim is to ensure
- the child process reconstructs the argv array we start with
- exactly, so we treat quotes at the beginning and end of arguments
- as embedded quotes.
-
- The Win32 GNU-based library from Cygnus doubles quotes to escape
- them, while MSVC uses backslash for escaping. (Actually the MSVC
- startup code does attempt to recognize doubled quotes and accept
- them, but gets it wrong and ends up requiring three quotes to get a
- single embedded quote!) So by default we decide whether to use
- quote or backslash as the escape character based on whether the
- binary is apparently a Cygnus compiled app.
-
- Note that using backslash to escape embedded quotes requires
- additional special handling if an embedded quote is already
- preceded by backslash, or if an arg requiring quoting ends with
- backslash. In such cases, the run of escape characters needs to be
- doubled. For consistency, we apply this special handling as long
- as the escape character is not quote.
-
- Since we have no idea how large argv and envp are likely to be we
- figure out list lengths on the fly and allocate them. */
-
- if (!NILP (Vmswindows_quote_process_args))
- {
- do_quoting = 1;
- /* Override escape char by binding mswindows-quote-process-args to
- desired character, or use t for auto-selection. */
- if (INTP (Vmswindows_quote_process_args))
- escape_char = (char) XINT (Vmswindows_quote_process_args);
- else
- escape_char = is_command_shell ? '^' : is_cygnus_app ? '"' : '\\';
- }
-
- /* do argv... */
- for (i = 0; i < nargv; ++i)
- {
- Bufbyte *targ = XSTRING_DATA (i == 0 ? program : argv[i - 1]);
- Bufbyte *p = targ;
- int need_quotes = 0;
- int escape_char_run = 0;
- int arglen = 0;
-
- if (*p == 0)
- need_quotes = 1;
- for ( ; *p; p++)
- {
- if (*p == '"')
- {
- /* allow for embedded quotes to be escaped */
- if (escape_char)
- arglen++;
- need_quotes = 1;
- /* handle the case where the embedded quote is already escaped */
- if (escape_char_run > 0)
- {
- /* To preserve the arg exactly, we need to double the
- preceding escape characters (plus adding one to
- escape the quote character itself). */
- arglen += escape_char_run;
- }
- }
- else if (*p == ' ' || *p == '\t')
- {
- need_quotes = 1;
- }
-
- if (escape_char && *p == escape_char && escape_char != '"')
- escape_char_run++;
- else
- escape_char_run = 0;
- }
- if (need_quotes)
- {
- arglen += 2;
- /* handle the case where the arg ends with an escape char - we
- must not let the enclosing quote be escaped. */
- if (escape_char_run > 0)
- arglen += escape_char_run;
- }
- arglen += strlen (targ) + 1;
-
- quoted_args[i] = alloca_array (Bufbyte, arglen);
- }
+ GCPRO1 (args_or_ret);
for (i = 0; i < nargv; ++i)
- {
- Bufbyte *targ = XSTRING_DATA (i == 0 ? program : argv[i - 1]);
- Bufbyte *p = targ;
- int need_quotes = 0;
- Bufbyte *parg = quoted_args[i];
+ args_or_ret = Fcons (*argv++, args_or_ret);
+ args_or_ret = Fnreverse (args_or_ret);
+ args_or_ret = Fcons (program, args_or_ret);
- if (*p == 0)
- need_quotes = 1;
+ args_or_ret = call1 (Qmswindows_construct_process_command_line,
+ args_or_ret);
- if (do_quoting)
- {
- for ( ; *p; p++)
- if (*p == ' ' || *p == '\t' || *p == '"')
- need_quotes = 1;
- }
- if (need_quotes)
- {
- int escape_char_run = 0;
- Bufbyte * first;
- Bufbyte * last;
-
- p = targ;
- first = p;
- last = p + strlen (p) - 1;
- *parg++ = '"';
-#if 0
- /* This version does not escape quotes if they occur at the
- beginning or end of the arg - this could lead to incorrect
- behavior when the arg itself represents a command line
- containing quoted args. I believe this was originally done
- as a hack to make some things work, before
- `mswindows-quote-process-args' was added. */
- while (*p)
- {
- if (*p == '"' && p > first && p < last)
- *parg++ = escape_char; /* escape embedded quotes */
- *parg++ = *p++;
- }
-#else
- for ( ; *p; p++)
- {
- if (escape_char && *p == '"')
- {
- /* double preceding escape chars if any */
- while (escape_char_run > 0)
- {
- *parg++ = escape_char;
- escape_char_run--;
- }
- /* escape all quote chars, even at beginning or end */
- *parg++ = escape_char;
- }
- *parg++ = *p;
-
- if (escape_char && *p == escape_char && escape_char != '"')
- escape_char_run++;
- else
- escape_char_run = 0;
- }
- /* double escape chars before enclosing quote */
- while (escape_char_run > 0)
- {
- *parg++ = escape_char;
- escape_char_run--;
- }
-#endif
- *parg++ = '"';
- }
- else
- {
- strcpy (parg, targ);
- parg += strlen (targ);
- }
- *parg = '\0';
- }
+ if (!STRINGP (args_or_ret))
+ /* Luser wrote his/her own clever version */
+ invalid_argument
+ ("Bogus return value from `mswindows-construct-process-command-line'",
+ args_or_ret);
- {
- int total_cmdline_len = 0;
- Extcount *extargcount = (Extcount *) alloca_array (Extcount, nargv);
- Extbyte **extarg = (Extbyte **) alloca_array (Extbyte *, nargv);
- Extbyte *command_ptr;
+ LISP_STRING_TO_EXTERNAL (args_or_ret, command_line, Qmswindows_tstr);
- for (i = 0; i < nargv; ++i)
- {
- TO_EXTERNAL_FORMAT (C_STRING, quoted_args[i], ALLOCA,
- (extarg[i], extargcount[i]), Qmswindows_tstr);
- /* account for space and terminating null */
- total_cmdline_len += extargcount[i] + EITCHAR_SIZE;
- }
-
- command_line = alloca_array (char, total_cmdline_len);
- command_ptr = command_line;
- for (i = 0; i < nargv; ++i)
- {
- memcpy (command_ptr, extarg[i], extargcount[i]);
- command_ptr += extargcount[i];
- EICOPY_TCHAR (command_ptr, ' ');
- command_ptr += EITCHAR_SIZE;
- }
- EICOPY_TCHAR (command_ptr, '\0');
- command_ptr += EITCHAR_SIZE;
- }
+ UNGCPRO; /* args_or_ret */
}
+
/* Set `proc_env' to a nul-separated array of the strings in
Vprocess_environment terminated by 2 nuls. */
}
*penv = 0;
}
+
+#if 0
+ /* #### we need to port this. */
+ /* On Windows 95, if cmdname is a DOS app, we invoke a helper
+ application to start it by specifying the helper app as cmdname,
+ while leaving the real app name as argv[0]. */
+ if (is_dos_app)
+ {
+ cmdname = (char*) alloca (MAXPATHLEN);
+ if (egetenv ("CMDPROXY"))
+ strcpy ((char*)cmdname, egetenv ("CMDPROXY"));
+ else
+ {
+ strcpy ((char*)cmdname, XSTRING_DATA (Vinvocation_directory));
+ strcat ((char*)cmdname, "cmdproxy.exe");
+ }
+ }
+#endif
/* Create process */
{
while (1)
{
- ssize_t writeret;
+ Lstream_data_count writeret;
chunklen = Lstream_read (lstream, chunkbuf, 512);
if (chunklen <= 0)
- break; /* perhaps should abort() if < 0?
+ break; /* perhaps should ABORT() if < 0?
This should never happen. */
/* Lstream_write() will never successfully write less than the
p->tick++;
process_tick++;
deactivate_process (*((Lisp_Object *) (&vol_proc)));
- error ("Broken pipe error sending to process %s; closed it",
- XSTRING_DATA (p->name));
+ invalid_operation ("Broken pipe error sending to process; closed it",
+ p->name);
}
{
/* Send signal */
if (!send_signal (NT_DATA (p), 0, signo))
- signal_simple_error ("Cannot send signal to process", proc);
+ invalid_operation ("Cannot send signal to process", proc);
}
/*
CHECK_STRING (host);
if (!EQ (protocol, Qtcp))
- signal_simple_error ("Unsupported protocol", protocol);
+ invalid_argument ("Unsupported protocol", protocol);
if (INTP (service))
port = htons ((unsigned short) XINT (service));
CHECK_STRING (service);
svc_info = getservbyname ((char *) XSTRING_DATA (service), "tcp");
if (svc_info == 0)
- signal_simple_error ("Unknown service", service);
+ invalid_argument ("Unknown service", service);
port = svc_info->s_port;
}
void
syms_of_process_nt (void)
{
+ DEFSYMBOL (Qmswindows_construct_process_command_line);
}
void
vars_of_process_nt (void)
{
- DEFVAR_LISP ("mswindows-quote-process-args",
- &Vmswindows_quote_process_args /*
-Non-nil enables quoting of process arguments to ensure correct parsing.
-Because Windows does not directly pass argv arrays to child processes,
-programs have to reconstruct the argv array by parsing the command
-line string. For an argument to contain a space, it must be enclosed
-in double quotes or it will be parsed as multiple arguments.
-
-If the value is a character, that character will be used to escape any
-quote characters that appear, otherwise a suitable escape character
-will be chosen based on the type of the program (normal or Cygwin).
-*/ );
- Vmswindows_quote_process_args = Qt;
-
DEFVAR_LISP ("mswindows-start-process-share-console",
&Vmswindows_start_process_share_console /*
When nil, new child processes are given a new console.
When non-nil, they share the Emacs console; this has the limitation of
-allowing only only DOS subprocess to run at a time (whether started directly
+allowing only one DOS subprocess to run at a time (whether started directly
or indirectly by Emacs), and preventing Emacs from cleanly terminating the
subprocess group, but may allow Emacs to interrupt a subprocess that doesn't
otherwise respond to interrupts from Emacs.
projects / chise / xemacs-chise.git.1 / blobdiff