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-rw-r--r--src/process.c72
1 files changed, 18 insertions, 54 deletions
diff --git a/src/process.c b/src/process.c
index 43f0239d301..5fe6a6540f3 100644
--- a/src/process.c
+++ b/src/process.c
@@ -130,18 +130,6 @@ extern int sys_select (int, SELECT_TYPE *, SELECT_TYPE *, SELECT_TYPE *,
EMACS_TIME *, void *);
#endif
-/* This is for DOS_NT ports. FIXME: Remove this old portability cruft
- by having DOS_NT ports implement waitpid instead of wait. Nowadays
- POSIXish hosts all define waitpid, WNOHANG, and WUNTRACED, as these
- have been standard since POSIX.1-1988. */
-#ifndef WNOHANG
-# undef waitpid
-# define waitpid(pid, status, options) wait (status)
-#endif
-#ifndef WUNTRACED
-# define WUNTRACED 0
-#endif
-
/* Work around GCC 4.7.0 bug with strict overflow checking; see
<http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52904>.
These lines can be removed once the GCC bug is fixed. */
@@ -208,7 +196,7 @@ static EMACS_INT update_tick;
#ifndef NON_BLOCKING_CONNECT
#ifdef HAVE_SELECT
#if defined (HAVE_GETPEERNAME) || defined (GNU_LINUX)
-#if defined (O_NONBLOCK) || defined (O_NDELAY)
+#if O_NONBLOCK || O_NDELAY
#if defined (EWOULDBLOCK) || defined (EINPROGRESS)
#define NON_BLOCKING_CONNECT
#endif /* EWOULDBLOCK || EINPROGRESS */
@@ -340,9 +328,6 @@ static struct sockaddr_and_len {
#define DATAGRAM_CONN_P(proc) (0)
#endif
-/* Maximum number of bytes to send to a pty without an eof. */
-static int pty_max_bytes;
-
/* These setters are used only in this file, so they can be private. */
static void
pset_buffer (struct Lisp_Process *p, Lisp_Object val)
@@ -655,7 +640,7 @@ allocate_pty (void)
PTY_OPEN;
#else /* no PTY_OPEN */
{
-# ifdef O_NONBLOCK
+# if O_NONBLOCK
fd = emacs_open (pty_name, O_RDWR | O_NONBLOCK, 0);
# else
fd = emacs_open (pty_name, O_RDWR | O_NDELAY, 0);
@@ -672,7 +657,7 @@ allocate_pty (void)
#else
sprintf (pty_name, "/dev/tty%c%x", c, i);
#endif /* no PTY_TTY_NAME_SPRINTF */
- if (access (pty_name, 6) != 0)
+ if (faccessat (AT_FDCWD, pty_name, R_OK | W_OK, AT_EACCESS) != 0)
{
emacs_close (fd);
# ifndef __sgi
@@ -1624,7 +1609,7 @@ create_process (Lisp_Object process, char **new_argv, Lisp_Object current_dir)
#if ! defined (USG) || defined (USG_SUBTTY_WORKS)
/* On most USG systems it does not work to open the pty's tty here,
then close it and reopen it in the child. */
-#ifdef O_NOCTTY
+#if O_NOCTTY
/* Don't let this terminal become our controlling terminal
(in case we don't have one). */
forkout = forkin = emacs_open (pty_name, O_RDWR | O_NOCTTY, 0);
@@ -1678,11 +1663,11 @@ create_process (Lisp_Object process, char **new_argv, Lisp_Object current_dir)
}
#endif
-#ifdef O_NONBLOCK
+#if O_NONBLOCK
fcntl (inchannel, F_SETFL, O_NONBLOCK);
fcntl (outchannel, F_SETFL, O_NONBLOCK);
#else
-#ifdef O_NDELAY
+#if O_NDELAY
fcntl (inchannel, F_SETFL, O_NDELAY);
fcntl (outchannel, F_SETFL, O_NDELAY);
#endif
@@ -1943,7 +1928,7 @@ create_pty (Lisp_Object process)
#if ! defined (USG) || defined (USG_SUBTTY_WORKS)
/* On most USG systems it does not work to open the pty's tty here,
then close it and reopen it in the child. */
-#ifdef O_NOCTTY
+#if O_NOCTTY
/* Don't let this terminal become our controlling terminal
(in case we don't have one). */
int forkout = emacs_open (pty_name, O_RDWR | O_NOCTTY, 0);
@@ -1963,11 +1948,11 @@ create_pty (Lisp_Object process)
}
#endif /* HAVE_PTYS */
-#ifdef O_NONBLOCK
+#if O_NONBLOCK
fcntl (inchannel, F_SETFL, O_NONBLOCK);
fcntl (outchannel, F_SETFL, O_NONBLOCK);
#else
-#ifdef O_NDELAY
+#if O_NDELAY
fcntl (inchannel, F_SETFL, O_NDELAY);
fcntl (outchannel, F_SETFL, O_NDELAY);
#endif
@@ -2927,7 +2912,7 @@ usage: (make-network-process &rest ARGS) */)
{
/* Don't support network sockets when non-blocking mode is
not available, since a blocked Emacs is not useful. */
-#if !defined (O_NONBLOCK) && !defined (O_NDELAY)
+#if !O_NONBLOCK && !O_NDELAY
error ("Network servers not supported");
#else
is_server = 1;
@@ -3193,7 +3178,7 @@ usage: (make-network-process &rest ARGS) */)
#ifdef NON_BLOCKING_CONNECT
if (is_non_blocking_client)
{
-#ifdef O_NONBLOCK
+#if O_NONBLOCK
ret = fcntl (s, F_SETFL, O_NONBLOCK);
#else
ret = fcntl (s, F_SETFL, O_NDELAY);
@@ -3410,10 +3395,10 @@ usage: (make-network-process &rest ARGS) */)
chan_process[inch] = proc;
-#ifdef O_NONBLOCK
+#if O_NONBLOCK
fcntl (inch, F_SETFL, O_NONBLOCK);
#else
-#ifdef O_NDELAY
+#if O_NDELAY
fcntl (inch, F_SETFL, O_NDELAY);
#endif
#endif
@@ -4145,10 +4130,10 @@ server_accept_connection (Lisp_Object server, int channel)
chan_process[s] = proc;
-#ifdef O_NONBLOCK
+#if O_NONBLOCK
fcntl (s, F_SETFL, O_NONBLOCK);
#else
-#ifdef O_NDELAY
+#if O_NDELAY
fcntl (s, F_SETFL, O_NDELAY);
#endif
#endif
@@ -4849,11 +4834,11 @@ wait_reading_process_output (intmax_t time_limit, int nsecs, int read_kbd,
#endif
/* ISC 4.1 defines both EWOULDBLOCK and O_NONBLOCK,
and Emacs uses O_NONBLOCK, so what we get is EAGAIN. */
-#ifdef O_NONBLOCK
+#if O_NONBLOCK
else if (nread == -1 && errno == EAGAIN)
;
#else
-#ifdef O_NDELAY
+#if O_NDELAY
else if (nread == -1 && errno == EAGAIN)
;
/* Note that we cannot distinguish between no input
@@ -5532,19 +5517,6 @@ send_process (Lisp_Object proc, const char *buf, ptrdiff_t len,
buf = SSDATA (object);
}
- if (pty_max_bytes == 0)
- {
-#if defined (HAVE_FPATHCONF) && defined (_PC_MAX_CANON)
- pty_max_bytes = fpathconf (p->outfd, _PC_MAX_CANON);
- if (pty_max_bytes < 0)
- pty_max_bytes = 250;
-#else
- pty_max_bytes = 250;
-#endif
- /* Deduct one, to leave space for the eof. */
- pty_max_bytes--;
- }
-
/* If there is already data in the write_queue, put the new data
in the back of queue. Otherwise, ignore it. */
if (!NILP (p->write_queue))
@@ -6311,17 +6283,9 @@ record_child_status_change (pid_t pid, int w)
{
#ifdef SIGCHLD
-# ifdef WNOHANG
/* On POSIXish hosts, record at most one child only if we already
know one child that has exited. */
bool record_at_most_one_child = 0 <= pid;
-# else
- /* On DOS_NT (the only porting target that lacks WNOHANG),
- record the status of at most one child process, since the SIGCHLD
- handler must return right away. If any more processes want to
- signal us, we will get another signal. */
- bool record_at_most_one_child = 1;
-# endif
Lisp_Object tail;
@@ -7348,7 +7312,7 @@ init_process_emacs (void)
#ifdef HAVE_GETSOCKNAME
ADD_SUBFEATURE (QCservice, Qt);
#endif
-#if defined (O_NONBLOCK) || defined (O_NDELAY)
+#if O_NONBLOCK || O_NDELAY
ADD_SUBFEATURE (QCserver, Qt);
#endif
generated by cgit v1.3 (git 2.53.0) at 2026-07-26 11:25:43 +0000