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Fix socketd fd startup bug that I introduced

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Problem reported by Matthew Leach in:
http://lists.gnu.org/archive/html/emacs-devel/2016-04/msg00778.html
* src/emacs.c (main): Indicate more clearly the coupling between
the --daemon option and init_process_emacs.
* src/lisp.h: Adjust to API changes.
* src/process.c (set_external_socket_descriptor):
Remove, replacing by ...
(init_process_emacs): ... passing the socket FD here instead.
All uses changed.
This commit is contained in:
Paul Eggert 2016-04-26 09:12:14 -07:00
parent 7b9a5c2a45
commit 40a03df453
3 changed files with 14 additions and 18 deletions
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7
src/emacs.c
View file

@ -971,6 +971,9 @@ main (int argc, char **argv)
w32_daemon_event = NULL;
#endif
int sockfd = -1;
if (argmatch (argv, argc, "-daemon", "--daemon", 5, NULL, &skip_args)
|| argmatch (argv, argc, "-daemon", "--daemon", 5, &dname_arg, &skip_args))
{
@ -1016,7 +1019,7 @@ main (int argc, char **argv)
else if (systemd_socket == 1
&& (0 < sd_is_socket (SD_LISTEN_FDS_START,
AF_UNSPEC, SOCK_STREAM, 1)))
set_external_socket_descriptor (SD_LISTEN_FDS_START);
sockfd = SD_LISTEN_FDS_START;
#endif /* HAVE_LIBSYSTEMD */
#ifndef DAEMON_MUST_EXEC
@ -1575,7 +1578,7 @@ Using an Emacs configured with --with-x-toolkit=lucid does not have this problem
/* This can create a thread that may call getenv, so it must follow
all calls to putenv and setenv. Also, this sets up
add_keyboard_wait_descriptor, which init_display uses. */
init_process_emacs ();
init_process_emacs (sockfd);
init_keyboard (); /* This too must precede init_sys_modes. */
if (!noninteractive)

3
src/lisp.h
View file

@ -4181,10 +4181,9 @@ extern void delete_keyboard_wait_descriptor (int);
extern void add_gpm_wait_descriptor (int);
extern void delete_gpm_wait_descriptor (int);
#endif
extern void init_process_emacs (void);
extern void init_process_emacs (int);
extern void syms_of_process (void);
extern void setup_process_coding_systems (Lisp_Object);
extern void set_external_socket_descriptor (int);
/* Defined in callproc.c. */
#ifndef DOS_NT

22
src/process.c
View file

@ -267,7 +267,10 @@ static int max_process_desc;
/* The largest descriptor currently in use for input; -1 if none. */
static int max_input_desc;
/* The descriptor of any socket passed to Emacs; -1 if none. */
/* Set the external socket descriptor for Emacs to use when
`make-network-process' is called with a non-nil
`:use-external-socket' option. The value should be either -1, or
the file descriptor of a socket that is already bound. */
static int external_sock_fd;
/* Indexed by descriptor, gives the process (if any) for that descriptor. */
@ -7733,24 +7736,14 @@ catch_child_signal (void)
}
#endif /* subprocesses */
/* Set the external socket descriptor for Emacs to use when
`make-network-process' is called with a non-nil
`:use-external-socket' option. The fd should have been checked to
ensure it is a valid socket and is already bound. */
void
set_external_socket_descriptor (int fd)
{
external_sock_fd = fd;
}
/* This is not called "init_process" because that is the name of a
Mach system call, so it would cause problems on Darwin systems. */
void
init_process_emacs (void)
init_process_emacs (int sockfd)
{
#ifdef subprocesses
register int i;
int i;
inhibit_sentinels = 0;
@ -7772,7 +7765,8 @@ init_process_emacs (void)
FD_ZERO (&non_keyboard_wait_mask);
FD_ZERO (&non_process_wait_mask);
FD_ZERO (&write_mask);
max_process_desc = max_input_desc = external_sock_fd = -1;
max_process_desc = max_input_desc = -1;
external_sock_fd = sockfd;
memset (fd_callback_info, 0, sizeof (fd_callback_info));
FD_ZERO (&connect_wait_mask);