/* Pattern used by call-process-region to make temp files. */
static Lisp_Object Vtemp_file_name_pattern;
-extern Lisp_Object Vtemporary_file_directory;
-
Lisp_Object Vshell_file_name;
Lisp_Object Vprocess_environment, Vinitial_environment;
int synch_process_alive;
/* Nonzero => this is a string explaining death of synchronous subprocess. */
-char *synch_process_death;
+const char *synch_process_death;
/* Nonzero => this is the signal number that terminated the subprocess. */
int synch_process_termsig;
{
if (fd[0] >= 0)
emacs_close (fd[0]);
-#ifndef subprocesses
- /* If Emacs has been built with asynchronous subprocess support,
- we don't need to do this, I think because it will then have
- the facilities for handling SIGCHLD. */
- wait_without_blocking ();
-#endif /* subprocesses */
return Qnil;
}
make_number (total_read));
}
+#ifndef MSDOS
/* Wait for it to terminate, unless it already has. */
wait_for_termination (pid);
+#endif
immediate_quit = 0;
if (synch_process_termsig)
{
- char *signame;
+ const char *signame;
synchronize_system_messages_locale ();
signame = strsignal (synch_process_termsig);
RETURN_UNGCPRO (unbind_to (count, Fcall_process (nargs, args)));
}
\f
+#ifndef WINDOWSNT
static int relocate_fd (int fd, int minfd);
+#endif
static char **
add_env (char **env, char **new_env, char *string)
int pid = getpid ();
-#ifdef SET_EMACS_PRIORITY
- {
- extern EMACS_INT emacs_priority;
-
- if (emacs_priority < 0)
- nice (- emacs_priority);
- }
-#endif
-
-#ifdef subprocesses
/* Close Emacs's descriptors that this process should not have. */
close_process_descs ();
-#endif
+
/* DOS_NT isn't in a vfork, so if we are in the middle of load-file,
we will lose if we call close_load_descs here. */
#ifndef DOS_NT
char **p, **q;
register int new_length;
Lisp_Object display = Qnil;
-
+
new_length = 0;
for (tem = Vprocess_environment;
but with corrected value. */
if (egetenv ("PWD"))
*new_env++ = pwd_var;
-
+
if (STRINGP (display))
{
int vlen = strlen ("DISPLAY=") + strlen (SDATA (display)) + 1;
}
}
-
+
#ifdef WINDOWSNT
prepare_standard_handles (in, out, err, handles);
set_process_dir (SDATA (current_dir));
#else
setpgrp (pid, pid);
#endif /* USG */
- /* setpgrp_of_tty is incorrect here; it uses input_fd. */
- EMACS_SET_TTY_PGRP (0, &pid);
#ifdef MSDOS
pid = run_msdos_command (new_argv, pwd_var + 4, in, out, err, env);
report_file_error ("Spawning child process", Qnil);
return cpid;
#else /* not WINDOWSNT */
+ /* setpgrp_of_tty is incorrect here; it uses input_fd. */
+ EMACS_SET_TTY_PGRP (0, &pid);
+
/* execvp does not accept an environment arg so the only way
to pass this environment is to set environ. Our caller
is responsible for restoring the ambient value of environ. */
#endif /* not MSDOS */
}
+#ifndef WINDOWSNT
/* Move the file descriptor FD so that its number is not less than MINFD.
If the file descriptor is moved at all, the original is freed. */
static int
return fd;
else
{
- int new = dup (fd);
+ int new;
+#ifdef F_DUPFD
+ new = fcntl (fd, F_DUPFD, minfd);
+#else
+ new = dup (fd);
+ if (new != -1)
+ /* Note that we hold the original FD open while we recurse,
+ to guarantee we'll get a new FD if we need it. */
+ new = relocate_fd (new, minfd);
+#endif
if (new == -1)
{
- char *message1 = "Error while setting up child: ";
- char *errmessage = strerror (errno);
- char *message2 = "\n";
+ const char *message1 = "Error while setting up child: ";
+ const char *errmessage = strerror (errno);
+ const char *message2 = "\n";
emacs_write (2, message1, strlen (message1));
emacs_write (2, errmessage, strlen (errmessage));
emacs_write (2, message2, strlen (message2));
_exit (1);
}
- /* Note that we hold the original FD open while we recurse,
- to guarantee we'll get a new FD if we need it. */
- new = relocate_fd (new, minfd);
emacs_close (fd);
return new;
}
}
+#endif /* not WINDOWSNT */
static int
-getenv_internal_1 (char *var, int varlen, char **value, int *valuelen, Lisp_Object env)
+getenv_internal_1 (const char *var, int varlen, char **value, int *valuelen,
+ Lisp_Object env)
{
for (; CONSP (env); env = XCDR (env))
{
}
static int
-getenv_internal (char *var, int varlen, char **value, int *valuelen, Lisp_Object frame)
+getenv_internal (const char *var, int varlen, char **value, int *valuelen,
+ Lisp_Object frame)
{
/* Try to find VAR in Vprocess_environment first. */
if (getenv_internal_1 (var, varlen, value, valuelen,
/* A version of getenv that consults the Lisp environment lists,
easily callable from C. */
char *
-egetenv (char *var)
+egetenv (const char *var)
{
char *value;
int valuelen;
set_initial_environment (void)
{
register char **envp;
-#ifndef CANNOT_DUMP
- if (initialized)
- {
+#ifdef CANNOT_DUMP
+ Vprocess_environment = Qnil;
#else
- {
- Vprocess_environment = Qnil;
+ if (initialized)
#endif
+ {
for (envp = environ; *envp; envp++)
Vprocess_environment = Fcons (build_string (*envp),
Vprocess_environment);