#include <stdio.h>
#include <stdlib.h>
#include <errno.h>
#include <io.h>
#include <fcntl.h>
#include <signal.h>
#include "config.h"
#undef signal
#undef wait
#undef spawnve
#undef select
#undef kill
#include <windows.h>
#ifdef __GNUC__
extern BOOL WINAPI IsValidLocale(LCID, DWORD);
#endif
#include "lisp.h"
#include "w32.h"
#include "w32heap.h"
#include "systime.h"
#include "syswait.h"
#include "process.h"
#include "syssignal.h"
#include "w32term.h"
Lisp_Object Vw32_quote_process_args;
Lisp_Object Vw32_start_process_show_window;
Lisp_Object Vw32_start_process_share_console;
Lisp_Object Vw32_start_process_inherit_error_mode;
Lisp_Object Vw32_pipe_read_delay;
Lisp_Object Vw32_downcase_file_names;
Lisp_Object Vw32_generate_fake_inodes;
Lisp_Object Vw32_get_true_file_attributes;
Lisp_Object Qhigh, Qlow;
#ifdef EMACSDEBUG
void _DebPrint (const char *fmt, ...)
{
char buf[1024];
va_list args;
va_start (args, fmt);
vsprintf (buf, fmt, args);
va_end (args);
OutputDebugString (buf);
}
#endif
typedef void (_CALLBACK_ *signal_handler)(int);
static signal_handler sig_handlers[NSIG];
signal_handler
sys_signal (int sig, signal_handler handler)
{
signal_handler old;
if (sig != SIGCHLD)
{
errno = EINVAL;
return SIG_ERR;
}
old = sig_handlers[sig];
sig_handlers[sig] = handler;
return old;
}
#define _P_NOWAIT 1
int child_proc_count = 0;
child_process child_procs[ MAX_CHILDREN ];
child_process *dead_child = NULL;
DWORD WINAPI reader_thread (void *arg);
child_process *
new_child (void)
{
child_process *cp;
DWORD id;
for (cp = child_procs+(child_proc_count-1); cp >= child_procs; cp--)
if (!CHILD_ACTIVE (cp))
goto Initialise;
if (child_proc_count == MAX_CHILDREN)
return NULL;
cp = &child_procs[child_proc_count++];
Initialise:
memset (cp, 0, sizeof(*cp));
cp->fd = -1;
cp->pid = -1;
cp->procinfo.hProcess = NULL;
cp->status = STATUS_READ_ERROR;
cp->char_avail = CreateEvent (NULL, TRUE, FALSE, NULL);
if (cp->char_avail)
{
cp->char_consumed = CreateEvent (NULL, FALSE, FALSE, NULL);
if (cp->char_consumed)
{
cp->thrd = CreateThread (NULL, 1024, reader_thread, cp, 0, &id);
if (cp->thrd)
return cp;
}
}
delete_child (cp);
return NULL;
}
void
delete_child (child_process *cp)
{
int i;
for (i = 0; i < MAXDESC; i++)
if (fd_info[i].cp == cp)
abort ();
if (!CHILD_ACTIVE (cp))
return;
if (cp->thrd)
{
DWORD rc;
if (GetExitCodeThread (cp->thrd, &rc) && rc == STILL_ACTIVE)
{
cp->status = STATUS_READ_ERROR;
SetEvent (cp->char_consumed);
if (WaitForSingleObject (cp->thrd, 1000) != WAIT_OBJECT_0)
{
DebPrint (("delete_child.WaitForSingleObject (thread) failed "
"with %lu for fd %ld\n", GetLastError (), cp->fd));
TerminateThread (cp->thrd, 0);
}
}
CloseHandle (cp->thrd);
cp->thrd = NULL;
}
if (cp->char_avail)
{
CloseHandle (cp->char_avail);
cp->char_avail = NULL;
}
if (cp->char_consumed)
{
CloseHandle (cp->char_consumed);
cp->char_consumed = NULL;
}
if (cp == child_procs + child_proc_count - 1)
{
for (i = child_proc_count-1; i >= 0; i--)
if (CHILD_ACTIVE (&child_procs[i]))
{
child_proc_count = i + 1;
break;
}
}
if (i < 0)
child_proc_count = 0;
}
static child_process *
find_child_pid (DWORD pid)
{
child_process *cp;
for (cp = child_procs+(child_proc_count-1); cp >= child_procs; cp--)
if (CHILD_ACTIVE (cp) && pid == cp->pid)
return cp;
return NULL;
}
DWORD WINAPI
reader_thread (void *arg)
{
child_process *cp;
cp = (child_process *)arg;
if (cp == NULL
|| WaitForSingleObject (cp->char_consumed, INFINITE) != WAIT_OBJECT_0)
return 1;
for (;;)
{
int rc;
rc = _sys_read_ahead (cp->fd);
if (!SetEvent (cp->char_avail))
{
DebPrint (("reader_thread.SetEvent failed with %lu for fd %ld\n",
GetLastError (), cp->fd));
return 1;
}
if (rc == STATUS_READ_ERROR)
return 1;
if (rc == STATUS_READ_FAILED)
break;
if (WaitForSingleObject (cp->char_consumed, INFINITE) != WAIT_OBJECT_0)
{
DebPrint (("reader_thread.WaitForSingleObject failed with "
"%lu for fd %ld\n", GetLastError (), cp->fd));
break;
}
}
return 0;
}
static char * process_dir;
static BOOL
create_child (char *exe, char *cmdline, char *env, int is_gui_app,
int * pPid, child_process *cp)
{
STARTUPINFO start;
SECURITY_ATTRIBUTES sec_attrs;
#if 0
SECURITY_DESCRIPTOR sec_desc;
#endif
DWORD flags;
char dir[ MAXPATHLEN ];
if (cp == NULL) abort ();
memset (&start, 0, sizeof (start));
start.cb = sizeof (start);
#ifdef HAVE_NTGUI
if (NILP (Vw32_start_process_show_window) && !is_gui_app)
start.dwFlags = STARTF_USESTDHANDLES | STARTF_USESHOWWINDOW;
else
start.dwFlags = STARTF_USESTDHANDLES;
start.wShowWindow = SW_HIDE;
start.hStdInput = GetStdHandle (STD_INPUT_HANDLE);
start.hStdOutput = GetStdHandle (STD_OUTPUT_HANDLE);
start.hStdError = GetStdHandle (STD_ERROR_HANDLE);
#endif
#if 0
if (!InitializeSecurityDescriptor (&sec_desc, SECURITY_DESCRIPTOR_REVISION))
goto EH_Fail;
if (!SetSecurityDescriptorDacl (&sec_desc, TRUE, NULL, FALSE))
goto EH_Fail;
#endif
sec_attrs.nLength = sizeof (sec_attrs);
sec_attrs.lpSecurityDescriptor = NULL ;
sec_attrs.bInheritHandle = FALSE;
strcpy (dir, process_dir);
unixtodos_filename (dir);
flags = (!NILP (Vw32_start_process_share_console)
? CREATE_NEW_PROCESS_GROUP
: CREATE_NEW_CONSOLE);
if (NILP (Vw32_start_process_inherit_error_mode))
flags |= CREATE_DEFAULT_ERROR_MODE;
if (!CreateProcess (exe, cmdline, &sec_attrs, NULL, TRUE,
flags, env, dir, &start, &cp->procinfo))
goto EH_Fail;
cp->pid = (int) cp->procinfo.dwProcessId;
if (cp->pid < 0)
cp->pid = -cp->pid;
cp->pid = (cp->pid & VALMASK);
*pPid = cp->pid;
return TRUE;
EH_Fail:
DebPrint (("create_child.CreateProcess failed: %ld\n", GetLastError()););
return FALSE;
}
void
register_child (int pid, int fd)
{
child_process *cp;
cp = find_child_pid (pid);
if (cp == NULL)
{
DebPrint (("register_child unable to find pid %lu\n", pid));
return;
}
#ifdef FULL_DEBUG
DebPrint (("register_child registered fd %d with pid %lu\n", fd, pid));
#endif
cp->fd = fd;
cp->status = STATUS_READ_ACKNOWLEDGED;
if (fd_info[fd].cp != NULL)
{
DebPrint (("register_child: fd_info[%d] apparently in use!\n", fd));
abort ();
}
fd_info[fd].cp = cp;
}
static void
reap_subprocess (child_process *cp)
{
if (cp->procinfo.hProcess)
{
#ifdef FULL_DEBUG
if (WaitForSingleObject (cp->procinfo.hProcess, 0) != WAIT_OBJECT_0)
DebPrint (("reap_subprocess: child fpr fd %d has not died yet!", cp->fd));
#endif
CloseHandle (cp->procinfo.hProcess);
cp->procinfo.hProcess = NULL;
CloseHandle (cp->procinfo.hThread);
cp->procinfo.hThread = NULL;
}
if (cp->fd == -1)
delete_child (cp);
}
int
sys_wait (int *status)
{
DWORD active, retval;
int nh;
int pid;
child_process *cp, *cps[MAX_CHILDREN];
HANDLE wait_hnd[MAX_CHILDREN];
nh = 0;
if (dead_child != NULL)
{
wait_hnd[nh] = dead_child->procinfo.hProcess;
cps[nh] = dead_child;
if (!wait_hnd[nh]) abort ();
nh++;
active = 0;
goto get_result;
}
else
{
for (cp = child_procs+(child_proc_count-1); cp >= child_procs; cp--)
if (CHILD_ACTIVE (cp) && cp->procinfo.hProcess)
{
wait_hnd[nh] = cp->procinfo.hProcess;
cps[nh] = cp;
nh++;
}
}
if (nh == 0)
{
errno = ECHILD;
return -1;
}
do
{
QUIT;
active = WaitForMultipleObjects (nh, wait_hnd, FALSE, 1000);
} while (active == WAIT_TIMEOUT);
if (active == WAIT_FAILED)
{
errno = EBADF;
return -1;
}
else if (active >= WAIT_OBJECT_0
&& active < WAIT_OBJECT_0+MAXIMUM_WAIT_OBJECTS)
{
active -= WAIT_OBJECT_0;
}
else if (active >= WAIT_ABANDONED_0
&& active < WAIT_ABANDONED_0+MAXIMUM_WAIT_OBJECTS)
{
active -= WAIT_ABANDONED_0;
}
else
abort ();
get_result:
if (!GetExitCodeProcess (wait_hnd[active], &retval))
{
DebPrint (("Wait.GetExitCodeProcess failed with %lu\n",
GetLastError ()));
retval = 1;
}
if (retval == STILL_ACTIVE)
{
DebPrint (("Wait.WaitForMultipleObjects returned an active process\n"));
errno = EINVAL;
return -1;
}
if (retval == STATUS_CONTROL_C_EXIT)
retval = SIGINT;
else
retval <<= 8;
cp = cps[active];
pid = cp->pid;
#ifdef FULL_DEBUG
DebPrint (("Wait signaled with process pid %d\n", cp->pid));
#endif
if (status)
{
*status = retval;
}
else if (synch_process_alive)
{
synch_process_alive = 0;
if (WIFEXITED (retval))
synch_process_retcode = WRETCODE (retval);
else if (WIFSIGNALED (retval))
{
int code = WTERMSIG (retval);
char *signame;
synchronize_system_messages_locale ();
signame = strsignal (code);
if (signame == 0)
signame = "unknown";
synch_process_death = signame;
}
reap_subprocess (cp);
}
reap_subprocess (cp);
return pid;
}
void
w32_executable_type (char * filename, int * is_dos_app, int * is_cygnus_app, int * is_gui_app)
{
file_data executable;
char * p;
*is_dos_app = FALSE;
*is_cygnus_app = FALSE;
*is_gui_app = FALSE;
if (!open_input_file (&executable, filename))
return;
p = strrchr (filename, '.');
if (p && stricmp (p, ".com") == 0)
*is_dos_app = TRUE;
else if (p && (stricmp (p, ".bat") == 0
|| stricmp (p, ".cmd") == 0))
{
p = egetenv ("COMSPEC");
if (p)
w32_executable_type (p, is_dos_app, is_cygnus_app, is_gui_app);
}
else
{
IMAGE_DOS_HEADER * dos_header;
IMAGE_NT_HEADERS * nt_header;
dos_header = (PIMAGE_DOS_HEADER) executable.file_base;
if (dos_header->e_magic != IMAGE_DOS_SIGNATURE)
goto unwind;
nt_header = (PIMAGE_NT_HEADERS) ((char *) dos_header + dos_header->e_lfanew);
if ((char *) nt_header > (char *) dos_header + executable.size)
{
*is_dos_app = TRUE;
}
else if (nt_header->Signature != IMAGE_NT_SIGNATURE
&& LOWORD (nt_header->Signature) != IMAGE_OS2_SIGNATURE)
{
*is_dos_app = TRUE;
}
else if (nt_header->Signature == IMAGE_NT_SIGNATURE)
{
IMAGE_DATA_DIRECTORY import_dir =
nt_header->OptionalHeader.DataDirectory[IMAGE_DIRECTORY_ENTRY_IMPORT];
IMAGE_IMPORT_DESCRIPTOR * imports;
IMAGE_SECTION_HEADER * section;
section = rva_to_section (import_dir.VirtualAddress, nt_header);
imports = RVA_TO_PTR (import_dir.VirtualAddress, section, executable);
for ( ; imports->Name; imports++)
{
char * dllname = RVA_TO_PTR (imports->Name, section, executable);
if (strncmp (dllname, "cygwin", 6) == 0)
{
*is_cygnus_app = TRUE;
break;
}
}
*is_gui_app = (nt_header->OptionalHeader.Subsystem == IMAGE_SUBSYSTEM_WINDOWS_GUI);
}
}
unwind:
close_file_data (&executable);
}
int
compare_env (const void *strp1, const void *strp2)
{
const char *str1 = *(const char **)strp1, *str2 = *(const char **)strp2;
while (*str1 && *str2 && *str1 != '=' && *str2 != '=')
{
if (toupper (*str1) > toupper (*str2))
return 1;
else if (toupper (*str1) < toupper (*str2))
return -1;
str1++, str2++;
}
if (*str1 == '=' && *str2 == '=')
return 0;
else if (*str1 == '=')
return -1;
else
return 1;
}
void
merge_and_sort_env (char **envp1, char **envp2, char **new_envp)
{
char **optr, **nptr;
int num;
nptr = new_envp;
optr = envp1;
while (*optr)
*nptr++ = *optr++;
num = optr - envp1;
optr = envp2;
while (*optr)
*nptr++ = *optr++;
num += optr - envp2;
qsort (new_envp, num, sizeof (char *), compare_env);
*nptr = NULL;
}
int
sys_spawnve (int mode, char *cmdname, char **argv, char **envp)
{
Lisp_Object program, full;
char *cmdline, *env, *parg, **targ;
int arglen, numenv;
int pid;
child_process *cp;
int is_dos_app, is_cygnus_app, is_gui_app;
int do_quoting = 0;
char escape_char;
char ppid_env_var_buffer[64];
char *extra_env[] = {ppid_env_var_buffer, NULL};
char *sepchars = " \t";
if (mode != _P_NOWAIT)
{
errno = EINVAL;
return -1;
}
program = make_string (cmdname, strlen (cmdname));
if (NILP (Ffile_executable_p (program)))
{
struct gcpro gcpro1;
full = Qnil;
GCPRO1 (program);
openp (Vexec_path, program, EXEC_SUFFIXES, &full, 1);
UNGCPRO;
if (NILP (full))
{
errno = EINVAL;
return -1;
}
program = full;
}
cmdname = XSTRING (program)->data;
unixtodos_filename (cmdname);
argv[0] = cmdname;
w32_executable_type (cmdname, &is_dos_app, &is_cygnus_app, &is_gui_app);
if (is_dos_app)
{
cmdname = alloca (MAXPATHLEN);
if (egetenv ("CMDPROXY"))
strcpy (cmdname, egetenv ("CMDPROXY"));
else
{
strcpy (cmdname, XSTRING (Vinvocation_directory)->data);
strcat (cmdname, "cmdproxy.exe");
}
unixtodos_filename (cmdname);
}
if (!NILP (Vw32_quote_process_args))
{
do_quoting = 1;
if (INTEGERP (Vw32_quote_process_args))
escape_char = XINT (Vw32_quote_process_args);
else
escape_char = is_cygnus_app ? '"' : '\\';
}
if (escape_char == '"')
sepchars = "\r\n\t\f '";
arglen = 0;
targ = argv;
while (*targ)
{
char * p = *targ;
int need_quotes = 0;
int escape_char_run = 0;
if (*p == 0)
need_quotes = 1;
for ( ; *p; p++)
{
if (escape_char == '"' && *p == '\\')
arglen++;
else if (*p == '"')
{
arglen++;
need_quotes = 1;
if (escape_char_run > 0)
{
arglen += escape_char_run;
}
}
else if (strchr (sepchars, *p) != NULL)
{
need_quotes = 1;
}
if (*p == escape_char && escape_char != '"')
escape_char_run++;
else
escape_char_run = 0;
}
if (need_quotes)
{
arglen += 2;
if (escape_char_run > 0)
arglen += escape_char_run;
}
arglen += strlen (*targ++) + 1;
}
cmdline = alloca (arglen);
targ = argv;
parg = cmdline;
while (*targ)
{
char * p = *targ;
int need_quotes = 0;
if (*p == 0)
need_quotes = 1;
if (do_quoting)
{
for ( ; *p; p++)
if ((strchr (sepchars, *p) != NULL) || *p == '"')
need_quotes = 1;
}
if (need_quotes)
{
int escape_char_run = 0;
char * first;
char * last;
p = *targ;
first = p;
last = p + strlen (p) - 1;
*parg++ = '"';
#if 0
while (*p)
{
if (*p == '"' && p > first && p < last)
*parg++ = escape_char;
*parg++ = *p++;
}
#else
for ( ; *p; p++)
{
if (*p == '"')
{
while (escape_char_run > 0)
{
*parg++ = escape_char;
escape_char_run--;
}
*parg++ = escape_char;
}
else if (escape_char == '"' && *p == '\\')
*parg++ = '\\';
*parg++ = *p;
if (*p == escape_char && escape_char != '"')
escape_char_run++;
else
escape_char_run = 0;
}
while (escape_char_run > 0)
{
*parg++ = escape_char;
escape_char_run--;
}
#endif
*parg++ = '"';
}
else
{
strcpy (parg, *targ);
parg += strlen (*targ);
}
*parg++ = ' ';
targ++;
}
*--parg = '\0';
arglen = 1;
targ = envp;
numenv = 1;
while (*targ)
{
arglen += strlen (*targ++) + 1;
numenv++;
}
sprintf (ppid_env_var_buffer, "EM_PARENT_PROCESS_ID=%d",
GetCurrentProcessId ());
arglen += strlen (ppid_env_var_buffer) + 1;
numenv++;
targ = (char **) alloca (numenv * sizeof (char *));
merge_and_sort_env (envp, extra_env, targ);
env = alloca (arglen);
parg = env;
while (*targ)
{
strcpy (parg, *targ);
parg += strlen (*targ++);
*parg++ = '\0';
}
*parg++ = '\0';
*parg = '\0';
cp = new_child ();
if (cp == NULL)
{
errno = EAGAIN;
return -1;
}
if (!create_child (cmdname, cmdline, env, is_gui_app, &pid, cp))
{
delete_child (cp);
errno = ENOEXEC;
return -1;
}
return pid;
}
extern HANDLE keyboard_handle;
extern HANDLE interrupt_handle;
extern int proc_buffered_char[];
int
sys_select (int nfds, SELECT_TYPE *rfds, SELECT_TYPE *wfds, SELECT_TYPE *efds,
EMACS_TIME *timeout)
{
SELECT_TYPE orfds;
DWORD timeout_ms, start_time;
int i, nh, nc, nr;
DWORD active;
child_process *cp, *cps[MAX_CHILDREN];
HANDLE wait_hnd[MAXDESC + MAX_CHILDREN];
int fdindex[MAXDESC];
timeout_ms = timeout ? (timeout->tv_sec * 1000 + timeout->tv_usec / 1000) : INFINITE;
if (rfds == NULL && wfds == NULL && efds == NULL && timeout != NULL)
{
Sleep (timeout_ms);
return 0;
}
if (rfds == NULL || wfds != NULL || efds != NULL)
{
errno = EINVAL;
return -1;
}
orfds = *rfds;
FD_ZERO (rfds);
nr = 0;
wait_hnd[0] = interrupt_handle;
fdindex[0] = -1;
nh = 1;
for (i = 0; i < nfds; i++)
if (FD_ISSET (i, &orfds))
{
if (i == 0)
{
if (keyboard_handle)
{
wait_hnd[nh] = keyboard_handle;
fdindex[nh] = i;
nh++;
}
if (detect_input_pending ())
{
FD_SET (i, rfds);
return 1;
}
}
else
{
cp = fd_info[i].cp;
if (cp)
{
int current_status = cp->status;
if (current_status == STATUS_READ_ACKNOWLEDGED)
{
cp->fd = i;
cp->status = STATUS_READ_READY;
if (!SetEvent (cp->char_consumed))
DebPrint (("nt_select.SetEvent failed with "
"%lu for fd %ld\n", GetLastError (), i));
}
#ifdef CHECK_INTERLOCK
current_status = cp->status;
if (WaitForSingleObject (cp->char_avail, 0) == WAIT_OBJECT_0)
{
current_status = cp->status;
if (current_status != STATUS_READ_SUCCEEDED
&& current_status != STATUS_READ_FAILED)
DebPrint (("char_avail set, but read not completed: status %d\n",
current_status));
}
else
{
if (current_status != STATUS_READ_READY
&& current_status != STATUS_READ_IN_PROGRESS
&& current_status != STATUS_READ_SUCCEEDED
&& current_status != STATUS_READ_FAILED)
DebPrint (("char_avail reset, but read status is bad: %d\n",
current_status));
}
#endif
wait_hnd[nh] = cp->char_avail;
fdindex[nh] = i;
if (!wait_hnd[nh]) abort ();
nh++;
#ifdef FULL_DEBUG
DebPrint (("select waiting on child %d fd %d\n",
cp-child_procs, i));
#endif
}
else
{
DebPrint (("sys_select: fd %ld is invalid! ignoring\n", i));
}
}
}
count_children:
nc = 0;
for (cp = child_procs+(child_proc_count-1); cp >= child_procs; cp--)
if (CHILD_ACTIVE (cp) && cp->procinfo.hProcess
&& (cp->fd < 0
|| (fd_info[cp->fd].flags & FILE_SEND_SIGCHLD) == 0
|| (fd_info[cp->fd].flags & FILE_AT_EOF) != 0)
)
{
wait_hnd[nh + nc] = cp->procinfo.hProcess;
cps[nc] = cp;
nc++;
}
if (nh + nc == 0)
{
if (timeout)
Sleep (timeout_ms);
return 0;
}
start_time = GetTickCount ();
if (FD_ISSET (0, &orfds))
active = MsgWaitForMultipleObjects (nh + nc, wait_hnd, FALSE, timeout_ms,
QS_ALLINPUT);
else
active = WaitForMultipleObjects (nh + nc, wait_hnd, FALSE, timeout_ms);
if (active == WAIT_FAILED)
{
DebPrint (("select.WaitForMultipleObjects (%d, %lu) failed with %lu\n",
nh + nc, timeout_ms, GetLastError ()));
errno = EINTR;
return -1;
}
else if (active == WAIT_TIMEOUT)
{
return 0;
}
else if (active >= WAIT_OBJECT_0
&& active < WAIT_OBJECT_0+MAXIMUM_WAIT_OBJECTS)
{
active -= WAIT_OBJECT_0;
}
else if (active >= WAIT_ABANDONED_0
&& active < WAIT_ABANDONED_0+MAXIMUM_WAIT_OBJECTS)
{
active -= WAIT_ABANDONED_0;
}
else
abort ();
do
{
if (active == nh + nc)
{
drain_message_queue ();
}
else if (active >= nh)
{
cp = cps[active - nh];
if (cp->fd >= 0 && (fd_info[cp->fd].flags & FILE_AT_EOF) == 0)
fd_info[cp->fd].flags |= FILE_SEND_SIGCHLD;
else if (sig_handlers[SIGCHLD] != SIG_DFL &&
sig_handlers[SIGCHLD] != SIG_IGN)
{
#ifdef FULL_DEBUG
DebPrint (("select calling SIGCHLD handler for pid %d\n",
cp->pid));
#endif
dead_child = cp;
sig_handlers[SIGCHLD] (SIGCHLD);
dead_child = NULL;
}
}
else if (fdindex[active] == -1)
{
errno = EINTR;
return -1;
}
else if (fdindex[active] == 0)
{
FD_SET (0, rfds);
nr++;
}
else
{
FD_SET (fdindex[active], rfds);
nr++;
}
while (++active < nh + nc)
if (WaitForSingleObject (wait_hnd[active], 0) == WAIT_OBJECT_0)
break;
} while (active < nh + nc);
if (nr == 0)
{
DWORD elapsed = GetTickCount () - start_time;
if (timeout_ms > elapsed)
{
if (timeout_ms != INFINITE)
timeout_ms -= elapsed;
goto count_children;
}
}
return nr;
}
static BOOL CALLBACK
find_child_console (HWND hwnd, LPARAM arg)
{
child_process * cp = (child_process *) arg;
DWORD thread_id;
DWORD process_id;
thread_id = GetWindowThreadProcessId (hwnd, &process_id);
if (process_id == cp->procinfo.dwProcessId)
{
char window_class[32];
GetClassName (hwnd, window_class, sizeof (window_class));
if (strcmp (window_class,
(os_subtype == OS_WIN95)
? "tty"
: "ConsoleWindowClass") == 0)
{
cp->hwnd = hwnd;
return FALSE;
}
}
return TRUE;
}
int
sys_kill (int pid, int sig)
{
child_process *cp;
HANDLE proc_hand;
int need_to_free = 0;
int rc = 0;
if (sig != SIGINT && sig != SIGKILL && sig != SIGQUIT && sig != SIGHUP)
{
errno = EINVAL;
return -1;
}
cp = find_child_pid (pid);
if (cp == NULL)
{
proc_hand = OpenProcess (PROCESS_TERMINATE, 0, pid);
if (proc_hand == NULL)
{
errno = EPERM;
return -1;
}
need_to_free = 1;
}
else
{
proc_hand = cp->procinfo.hProcess;
pid = cp->procinfo.dwProcessId;
EnumWindows (find_child_console, (LPARAM) cp);
}
if (sig == SIGINT || sig == SIGQUIT)
{
if (NILP (Vw32_start_process_share_console) && cp && cp->hwnd)
{
BYTE control_scan_code = (BYTE) MapVirtualKey (VK_CONTROL, 0);
BYTE vk_break_code = (sig == SIGINT) ? 'C' : VK_CANCEL;
BYTE break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
HWND foreground_window;
if (break_scan_code == 0)
{
vk_break_code = 'C';
break_scan_code = (BYTE) MapVirtualKey (vk_break_code, 0);
}
foreground_window = GetForegroundWindow ();
if (foreground_window)
{
DWORD foreground_thread, child_thread;
foreground_thread =
GetWindowThreadProcessId (foreground_window, NULL);
if (foreground_thread == GetCurrentThreadId ()
|| !AttachThreadInput (GetCurrentThreadId (),
foreground_thread, TRUE))
foreground_thread = 0;
child_thread = GetWindowThreadProcessId (cp->hwnd, NULL);
if (child_thread == GetCurrentThreadId ()
|| !AttachThreadInput (GetCurrentThreadId (),
child_thread, TRUE))
child_thread = 0;
if (SetForegroundWindow (cp->hwnd))
{
keybd_event (VK_CONTROL, control_scan_code, 0, 0);
keybd_event (vk_break_code, break_scan_code,
(vk_break_code == 'C' ? 0 : KEYEVENTF_EXTENDEDKEY), 0);
keybd_event (vk_break_code, break_scan_code,
(vk_break_code == 'C' ? 0 : KEYEVENTF_EXTENDEDKEY)
| KEYEVENTF_KEYUP, 0);
keybd_event (VK_CONTROL, control_scan_code,
KEYEVENTF_KEYUP, 0);
Sleep (100);
SetForegroundWindow (foreground_window);
}
if (foreground_thread)
AttachThreadInput (GetCurrentThreadId (),
foreground_thread, FALSE);
if (child_thread)
AttachThreadInput (GetCurrentThreadId (),
child_thread, FALSE);
}
}
else if (!GenerateConsoleCtrlEvent (CTRL_BREAK_EVENT, pid))
{
DebPrint (("sys_kill.GenerateConsoleCtrlEvent return %d "
"for pid %lu\n", GetLastError (), pid));
errno = EINVAL;
rc = -1;
}
}
else
{
if (NILP (Vw32_start_process_share_console) && cp && cp->hwnd)
{
#if 1
if (os_subtype == OS_WIN95)
{
#if 0
PostMessage (cp->hwnd, WM_QUIT, 0xff, 0);
#endif
if (!TerminateProcess (proc_hand, 0xff))
{
DebPrint (("sys_kill.TerminateProcess returned %d "
"for pid %lu\n", GetLastError (), pid));
errno = EINVAL;
rc = -1;
}
}
else
#endif
PostMessage (cp->hwnd, WM_CLOSE, 0, 0);
}
else if (!TerminateProcess (proc_hand, 0xff))
{
DebPrint (("sys_kill.TerminateProcess returned %d "
"for pid %lu\n", GetLastError (), pid));
errno = EINVAL;
rc = -1;
}
}
if (need_to_free)
CloseHandle (proc_hand);
return rc;
}
void
prepare_standard_handles (int in, int out, int err, HANDLE handles[3])
{
HANDLE parent;
HANDLE newstdin, newstdout, newstderr;
parent = GetCurrentProcess ();
handles[0] = GetStdHandle (STD_INPUT_HANDLE);
handles[1] = GetStdHandle (STD_OUTPUT_HANDLE);
handles[2] = GetStdHandle (STD_ERROR_HANDLE);
if (!DuplicateHandle (parent,
(HANDLE) _get_osfhandle (in),
parent,
&newstdin,
0,
TRUE,
DUPLICATE_SAME_ACCESS))
report_file_error ("Duplicating input handle for child", Qnil);
if (!DuplicateHandle (parent,
(HANDLE) _get_osfhandle (out),
parent,
&newstdout,
0,
TRUE,
DUPLICATE_SAME_ACCESS))
report_file_error ("Duplicating output handle for child", Qnil);
if (!DuplicateHandle (parent,
(HANDLE) _get_osfhandle (err),
parent,
&newstderr,
0,
TRUE,
DUPLICATE_SAME_ACCESS))
report_file_error ("Duplicating error handle for child", Qnil);
if (!SetStdHandle (STD_INPUT_HANDLE, newstdin))
report_file_error ("Changing stdin handle", Qnil);
if (!SetStdHandle (STD_OUTPUT_HANDLE, newstdout))
report_file_error ("Changing stdout handle", Qnil);
if (!SetStdHandle (STD_ERROR_HANDLE, newstderr))
report_file_error ("Changing stderr handle", Qnil);
}
void
reset_standard_handles (int in, int out, int err, HANDLE handles[3])
{
CloseHandle (GetStdHandle (STD_INPUT_HANDLE));
CloseHandle (GetStdHandle (STD_OUTPUT_HANDLE));
CloseHandle (GetStdHandle (STD_ERROR_HANDLE));
SetStdHandle (STD_INPUT_HANDLE, handles[0]);
SetStdHandle (STD_OUTPUT_HANDLE, handles[1]);
SetStdHandle (STD_ERROR_HANDLE, handles[2]);
}
void
set_process_dir (char * dir)
{
process_dir = dir;
}
#ifdef HAVE_SOCKETS
extern HANDLE winsock_lib;
extern BOOL term_winsock (void);
extern BOOL init_winsock (int load_now);
extern Lisp_Object Vsystem_name;
DEFUN ("w32-has-winsock", Fw32_has_winsock, Sw32_has_winsock, 0, 1, 0,
"Test for presence of the Windows socket library `winsock'.\n\
Returns non-nil if winsock support is present, nil otherwise.\n\
\n\
If the optional argument LOAD-NOW is non-nil, the winsock library is\n\
also loaded immediately if not already loaded. If winsock is loaded,\n\
the winsock local hostname is returned (since this may be different from\n\
the value of `system-name' and should supplant it), otherwise t is\n\
returned to indicate winsock support is present.")
(load_now)
Lisp_Object load_now;
{
int have_winsock;
have_winsock = init_winsock (!NILP (load_now));
if (have_winsock)
{
if (winsock_lib != NULL)
{
Lisp_Object orig_hostname = Vsystem_name;
Lisp_Object hostname;
init_system_name ();
hostname = Vsystem_name;
Vsystem_name = orig_hostname;
return hostname;
}
return Qt;
}
return Qnil;
}
DEFUN ("w32-unload-winsock", Fw32_unload_winsock, Sw32_unload_winsock,
0, 0, 0,
"Unload the Windows socket library `winsock' if loaded.\n\
This is provided to allow dial-up socket connections to be disconnected\n\
when no longer needed. Returns nil without unloading winsock if any\n\
socket connections still exist.")
()
{
return term_winsock () ? Qt : Qnil;
}
#endif
#define CORRECT_DIR_SEPS(s) \
do { if ('/' == DIRECTORY_SEP) dostounix_filename (s); \
else unixtodos_filename (s); \
} while (0)
DEFUN ("w32-short-file-name", Fw32_short_file_name, Sw32_short_file_name, 1, 1, 0,
"Return the short file name version (8.3) of the full path of FILENAME.\n\
If FILENAME does not exist, return nil.\n\
All path elements in FILENAME are converted to their short names.")
(filename)
Lisp_Object filename;
{
char shortname[MAX_PATH];
CHECK_STRING (filename, 0);
filename = Fexpand_file_name (filename, Qnil);
if (GetShortPathName (XSTRING (filename)->data, shortname, MAX_PATH) == 0)
return Qnil;
CORRECT_DIR_SEPS (shortname);
return build_string (shortname);
}
DEFUN ("w32-long-file-name", Fw32_long_file_name, Sw32_long_file_name,
1, 1, 0,
"Return the long file name version of the full path of FILENAME.\n\
If FILENAME does not exist, return nil.\n\
All path elements in FILENAME are converted to their long names.")
(filename)
Lisp_Object filename;
{
char longname[ MAX_PATH ];
CHECK_STRING (filename, 0);
filename = Fexpand_file_name (filename, Qnil);
if (!w32_get_long_filename (XSTRING (filename)->data, longname, MAX_PATH))
return Qnil;
CORRECT_DIR_SEPS (longname);
return build_string (longname);
}
DEFUN ("w32-set-process-priority", Fw32_set_process_priority, Sw32_set_process_priority,
2, 2, 0,
"Set the priority of PROCESS to PRIORITY.\n\
If PROCESS is nil, the priority of Emacs is changed, otherwise the\n\
priority of the process whose pid is PROCESS is changed.\n\
PRIORITY should be one of the symbols high, normal, or low;\n\
any other symbol will be interpreted as normal.\n\
\n\
If successful, the return value is t, otherwise nil.")
(process, priority)
Lisp_Object process, priority;
{
HANDLE proc_handle = GetCurrentProcess ();
DWORD priority_class = NORMAL_PRIORITY_CLASS;
Lisp_Object result = Qnil;
CHECK_SYMBOL (priority, 0);
if (!NILP (process))
{
DWORD pid;
child_process *cp;
CHECK_NUMBER (process, 0);
pid = XINT (process);
cp = find_child_pid (pid);
if (cp != NULL)
pid = cp->procinfo.dwProcessId;
proc_handle = OpenProcess (PROCESS_SET_INFORMATION, FALSE, pid);
}
if (EQ (priority, Qhigh))
priority_class = HIGH_PRIORITY_CLASS;
else if (EQ (priority, Qlow))
priority_class = IDLE_PRIORITY_CLASS;
if (proc_handle != NULL)
{
if (SetPriorityClass (proc_handle, priority_class))
result = Qt;
if (!NILP (process))
CloseHandle (proc_handle);
}
return result;
}
DEFUN ("w32-get-locale-info", Fw32_get_locale_info, Sw32_get_locale_info, 1, 2, 0,
"Return information about the Windows locale LCID.\n\
By default, return a three letter locale code which encodes the default\n\
language as the first two characters, and the country or regionial variant\n\
as the third letter. For example, ENU refers to `English (United States)',\n\
while ENC means `English (Canadian)'.\n\
\n\
If the optional argument LONGFORM is t, the long form of the locale\n\
name is returned, e.g. `English (United States)' instead; if LONGFORM\n\
is a number, it is interpreted as an LCTYPE constant and the corresponding\n\
locale information is returned.\n\
\n\
If LCID (a 16-bit number) is not a valid locale, the result is nil.")
(lcid, longform)
Lisp_Object lcid, longform;
{
int got_abbrev;
int got_full;
char abbrev_name[32] = { 0 };
char full_name[256] = { 0 };
CHECK_NUMBER (lcid, 0);
if (!IsValidLocale (XINT (lcid), LCID_SUPPORTED))
return Qnil;
if (NILP (longform))
{
got_abbrev = GetLocaleInfo (XINT (lcid),
LOCALE_SABBREVLANGNAME | LOCALE_USE_CP_ACP,
abbrev_name, sizeof (abbrev_name));
if (got_abbrev)
return build_string (abbrev_name);
}
else if (EQ (longform, Qt))
{
got_full = GetLocaleInfo (XINT (lcid),
LOCALE_SLANGUAGE | LOCALE_USE_CP_ACP,
full_name, sizeof (full_name));
if (got_full)
return build_string (full_name);
}
else if (NUMBERP (longform))
{
got_full = GetLocaleInfo (XINT (lcid),
XINT (longform),
full_name, sizeof (full_name));
if (got_full)
return make_unibyte_string (full_name, got_full);
}
return Qnil;
}
DEFUN ("w32-get-current-locale-id", Fw32_get_current_locale_id, Sw32_get_current_locale_id, 0, 0, 0,
"Return Windows locale id for current locale setting.\n\
This is a numerical value; use `w32-get-locale-info' to convert to a\n\
human-readable form.")
()
{
return make_number (GetThreadLocale ());
}
DWORD int_from_hex (char * s)
{
DWORD val = 0;
static char hex[] = "0123456789abcdefABCDEF";
char * p;
while (*s && (p = strchr(hex, *s)) != NULL)
{
unsigned digit = p - hex;
if (digit > 15)
digit -= 6;
val = val * 16 + digit;
s++;
}
return val;
}
Lisp_Object Vw32_valid_locale_ids;
BOOL CALLBACK enum_locale_fn (LPTSTR localeNum)
{
DWORD id = int_from_hex (localeNum);
Vw32_valid_locale_ids = Fcons (make_number (id), Vw32_valid_locale_ids);
return TRUE;
}
DEFUN ("w32-get-valid-locale-ids", Fw32_get_valid_locale_ids, Sw32_get_valid_locale_ids, 0, 0, 0,
"Return list of all valid Windows locale ids.\n\
Each id is a numerical value; use `w32-get-locale-info' to convert to a\n\
human-readable form.")
()
{
Vw32_valid_locale_ids = Qnil;
EnumSystemLocales (enum_locale_fn, LCID_SUPPORTED);
Vw32_valid_locale_ids = Fnreverse (Vw32_valid_locale_ids);
return Vw32_valid_locale_ids;
}
DEFUN ("w32-get-default-locale-id", Fw32_get_default_locale_id, Sw32_get_default_locale_id, 0, 1, 0,
"Return Windows locale id for default locale setting.\n\
By default, the system default locale setting is returned; if the optional\n\
parameter USERP is non-nil, the user default locale setting is returned.\n\
This is a numerical value; use `w32-get-locale-info' to convert to a\n\
human-readable form.")
(userp)
Lisp_Object userp;
{
if (NILP (userp))
return make_number (GetSystemDefaultLCID ());
return make_number (GetUserDefaultLCID ());
}
DEFUN ("w32-set-current-locale", Fw32_set_current_locale, Sw32_set_current_locale, 1, 1, 0,
"Make Windows locale LCID be the current locale setting for Emacs.\n\
If successful, the new locale id is returned, otherwise nil.")
(lcid)
Lisp_Object lcid;
{
CHECK_NUMBER (lcid, 0);
if (!IsValidLocale (XINT (lcid), LCID_SUPPORTED))
return Qnil;
if (!SetThreadLocale (XINT (lcid)))
return Qnil;
if (dwWindowsThreadId)
PostThreadMessage (dwWindowsThreadId, WM_EMACS_SETLOCALE, XINT (lcid), 0);
return make_number (GetThreadLocale ());
}
Lisp_Object Vw32_valid_codepages;
BOOL CALLBACK enum_codepage_fn (LPTSTR codepageNum)
{
DWORD id = atoi (codepageNum);
Vw32_valid_codepages = Fcons (make_number (id), Vw32_valid_codepages);
return TRUE;
}
DEFUN ("w32-get-valid-codepages", Fw32_get_valid_codepages, Sw32_get_valid_codepages, 0, 0, 0,
"Return list of all valid Windows codepages.")
()
{
Vw32_valid_codepages = Qnil;
EnumSystemCodePages (enum_codepage_fn, CP_SUPPORTED);
Vw32_valid_codepages = Fnreverse (Vw32_valid_codepages);
return Vw32_valid_codepages;
}
DEFUN ("w32-get-console-codepage", Fw32_get_console_codepage, Sw32_get_console_codepage, 0, 0, 0,
"Return current Windows codepage for console input.")
()
{
return make_number (GetConsoleCP ());
}
DEFUN ("w32-set-console-codepage", Fw32_set_console_codepage, Sw32_set_console_codepage, 1, 1, 0,
"Make Windows codepage CP be the current codepage setting for Emacs.\n\
The codepage setting affects keyboard input and display in tty mode.\n\
If successful, the new CP is returned, otherwise nil.")
(cp)
Lisp_Object cp;
{
CHECK_NUMBER (cp, 0);
if (!IsValidCodePage (XINT (cp)))
return Qnil;
if (!SetConsoleCP (XINT (cp)))
return Qnil;
return make_number (GetConsoleCP ());
}
DEFUN ("w32-get-console-output-codepage", Fw32_get_console_output_codepage, Sw32_get_console_output_codepage, 0, 0, 0,
"Return current Windows codepage for console output.")
()
{
return make_number (GetConsoleOutputCP ());
}
DEFUN ("w32-set-console-output-codepage", Fw32_set_console_output_codepage, Sw32_set_console_output_codepage, 1, 1, 0,
"Make Windows codepage CP be the current codepage setting for Emacs.\n\
The codepage setting affects keyboard input and display in tty mode.\n\
If successful, the new CP is returned, otherwise nil.")
(cp)
Lisp_Object cp;
{
CHECK_NUMBER (cp, 0);
if (!IsValidCodePage (XINT (cp)))
return Qnil;
if (!SetConsoleOutputCP (XINT (cp)))
return Qnil;
return make_number (GetConsoleOutputCP ());
}
DEFUN ("w32-get-codepage-charset", Fw32_get_codepage_charset, Sw32_get_codepage_charset, 1, 1, 0,
"Return charset of codepage CP.\n\
Returns nil if the codepage is not valid.")
(cp)
Lisp_Object cp;
{
CHARSETINFO info;
CHECK_NUMBER (cp, 0);
if (!IsValidCodePage (XINT (cp)))
return Qnil;
if (TranslateCharsetInfo ((DWORD *) XINT (cp), &info, TCI_SRCCODEPAGE))
return make_number (info.ciCharset);
return Qnil;
}
DEFUN ("w32-get-valid-keyboard-layouts", Fw32_get_valid_keyboard_layouts, Sw32_get_valid_keyboard_layouts, 0, 0, 0,
"Return list of Windows keyboard languages and layouts.\n\
The return value is a list of pairs of language id and layout id.")
()
{
int num_layouts = GetKeyboardLayoutList (0, NULL);
HKL * layouts = (HKL *) alloca (num_layouts * sizeof (HKL));
Lisp_Object obj = Qnil;
if (GetKeyboardLayoutList (num_layouts, layouts) == num_layouts)
{
while (--num_layouts >= 0)
{
DWORD kl = (DWORD) layouts[num_layouts];
obj = Fcons (Fcons (make_number (kl & 0xffff),
make_number ((kl >> 16) & 0xffff)),
obj);
}
}
return obj;
}
DEFUN ("w32-get-keyboard-layout", Fw32_get_keyboard_layout, Sw32_get_keyboard_layout, 0, 0, 0,
"Return current Windows keyboard language and layout.\n\
The return value is the cons of the language id and the layout id.")
()
{
DWORD kl = (DWORD) GetKeyboardLayout (dwWindowsThreadId);
return Fcons (make_number (kl & 0xffff),
make_number ((kl >> 16) & 0xffff));
}
DEFUN ("w32-set-keyboard-layout", Fw32_set_keyboard_layout, Sw32_set_keyboard_layout, 1, 1, 0,
"Make LAYOUT be the current keyboard layout for Emacs.\n\
The keyboard layout setting affects interpretation of keyboard input.\n\
If successful, the new layout id is returned, otherwise nil.")
(layout)
Lisp_Object layout;
{
DWORD kl;
CHECK_CONS (layout, 0);
CHECK_NUMBER (XCAR (layout), 0);
CHECK_NUMBER (XCDR (layout), 0);
kl = (XINT (XCAR (layout)) & 0xffff)
| (XINT (XCDR (layout)) << 16);
if (dwWindowsThreadId)
{
if (PostThreadMessage (dwWindowsThreadId, WM_EMACS_SETKEYBOARDLAYOUT,
(WPARAM) kl, 0))
{
MSG msg;
GetMessage (&msg, NULL, WM_EMACS_DONE, WM_EMACS_DONE);
if (msg.wParam == 0)
return Qnil;
}
}
else if (!ActivateKeyboardLayout ((HKL) kl, 0))
return Qnil;
return Fw32_get_keyboard_layout ();
}
syms_of_ntproc ()
{
Qhigh = intern ("high");
Qlow = intern ("low");
#ifdef HAVE_SOCKETS
defsubr (&Sw32_has_winsock);
defsubr (&Sw32_unload_winsock);
#endif
defsubr (&Sw32_short_file_name);
defsubr (&Sw32_long_file_name);
defsubr (&Sw32_set_process_priority);
defsubr (&Sw32_get_locale_info);
defsubr (&Sw32_get_current_locale_id);
defsubr (&Sw32_get_default_locale_id);
defsubr (&Sw32_get_valid_locale_ids);
defsubr (&Sw32_set_current_locale);
defsubr (&Sw32_get_console_codepage);
defsubr (&Sw32_set_console_codepage);
defsubr (&Sw32_get_console_output_codepage);
defsubr (&Sw32_set_console_output_codepage);
defsubr (&Sw32_get_valid_codepages);
defsubr (&Sw32_get_codepage_charset);
defsubr (&Sw32_get_valid_keyboard_layouts);
defsubr (&Sw32_get_keyboard_layout);
defsubr (&Sw32_set_keyboard_layout);
DEFVAR_LISP ("w32-quote-process-args", &Vw32_quote_process_args,
"Non-nil enables quoting of process arguments to ensure correct parsing.\n\
Because Windows does not directly pass argv arrays to child processes,\n\
programs have to reconstruct the argv array by parsing the command\n\
line string. For an argument to contain a space, it must be enclosed\n\
in double quotes or it will be parsed as multiple arguments.\n\
\n\
If the value is a character, that character will be used to escape any\n\
quote characters that appear, otherwise a suitable escape character\n\
will be chosen based on the type of the program.");
Vw32_quote_process_args = Qt;
DEFVAR_LISP ("w32-start-process-show-window",
&Vw32_start_process_show_window,
"When nil, new child processes hide their windows.\n\
When non-nil, they show their window in the method of their choice.\n\
This variable doesn't affect GUI applications, which will never be hidden.");
Vw32_start_process_show_window = Qnil;
DEFVAR_LISP ("w32-start-process-share-console",
&Vw32_start_process_share_console,
"When nil, new child processes are given a new console.\n\
When non-nil, they share the Emacs console; this has the limitation of\n\
allowing only only DOS subprocess to run at a time (whether started directly\n\
or indirectly by Emacs), and preventing Emacs from cleanly terminating the\n\
subprocess group, but may allow Emacs to interrupt a subprocess that doesn't\n\
otherwise respond to interrupts from Emacs.");
Vw32_start_process_share_console = Qnil;
DEFVAR_LISP ("w32-start-process-inherit-error-mode",
&Vw32_start_process_inherit_error_mode,
"When nil, new child processes revert to the default error mode.\n\
When non-nil, they inherit their error mode setting from Emacs, which stops\n\
them blocking when trying to access unmounted drives etc.");
Vw32_start_process_inherit_error_mode = Qt;
DEFVAR_INT ("w32-pipe-read-delay", &Vw32_pipe_read_delay,
"Forced delay before reading subprocess output.\n\
This is done to improve the buffering of subprocess output, by\n\
avoiding the inefficiency of frequently reading small amounts of data.\n\
\n\
If positive, the value is the number of milliseconds to sleep before\n\
reading the subprocess output. If negative, the magnitude is the number\n\
of time slices to wait (effectively boosting the priority of the child\n\
process temporarily). A value of zero disables waiting entirely.");
Vw32_pipe_read_delay = 50;
DEFVAR_LISP ("w32-downcase-file-names", &Vw32_downcase_file_names,
"Non-nil means convert all-upper case file names to lower case.\n\
This applies when performing completions and file name expansion.\n\
Note that the value of this setting also affects remote file names,\n\
so you probably don't want to set to non-nil if you use case-sensitive\n\
filesystems via ange-ftp.");
Vw32_downcase_file_names = Qnil;
#if 0
DEFVAR_LISP ("w32-generate-fake-inodes", &Vw32_generate_fake_inodes,
"Non-nil means attempt to fake realistic inode values.\n\
This works by hashing the truename of files, and should detect \n\
aliasing between long and short (8.3 DOS) names, but can have\n\
false positives because of hash collisions. Note that determing\n\
the truename of a file can be slow.");
Vw32_generate_fake_inodes = Qnil;
#endif
DEFVAR_LISP ("w32-get-true-file-attributes", &Vw32_get_true_file_attributes,
"Non-nil means determine accurate link count in file-attributes.\n\
This option slows down file-attributes noticeably, so is disabled by\n\
default. Note that it is only useful for files on NTFS volumes,\n\
where hard links are supported.");
Vw32_get_true_file_attributes = Qnil;
}