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server: implement a --server mode

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In this mode, foot listens on a UNIX socket and creates terminal
windows when clients connect.

A connecting client sends argc/argv to the server, and the server
instantiates a new terminal window.

When the terminal window is closed, the exit code is sent back to the
client.
This commit is contained in:
Daniel Eklöf 2019-11-01 20:37:22 +01:00
parent 32c6ed7069
commit a1efd65746
No known key found for this signature in database
GPG key ID: 5BBD4992C116573F
4 changed files with 334 additions and 2 deletions
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16
main.c
View file

@ -17,6 +17,7 @@
#include "config.h"
#include "fdm.h"
#include "font.h"
#include "server.h"
#include "shm.h"
#include "terminal.h"
#include "version.h"
@ -77,11 +78,14 @@ main(int argc, char *const *argv)
{"term", required_argument, 0, 't'},
{"font", required_argument, 0, 'f'},
{"geometry", required_argument, 0, 'g'},
{"server", no_argument, 0, 's'},
{"version", no_argument, 0, 'v'},
{"help", no_argument, 0, 'h'},
{NULL, no_argument, 0, 0},
};
bool as_server = false;
while (true) {
int c = getopt_long(argc, argv, ":t:f:g:vh", longopts, NULL);
if (c == -1)
@ -127,6 +131,10 @@ main(int argc, char *const *argv)
break;
}
case 's':
as_server = true;
break;
case 'v':
printf("foot version %s\n", FOOT_VERSION);
config_free(conf);
@ -158,6 +166,7 @@ main(int argc, char *const *argv)
struct fdm *fdm = NULL;
struct wayland *wayl = NULL;
struct terminal *term = NULL;
struct server *server = NULL;
struct shutdown_context shutdown_ctx = {.term = &term, .exit_code = EXIT_FAILURE};
if ((fdm = fdm_init()) == NULL)
@ -170,21 +179,24 @@ main(int argc, char *const *argv)
&term_shutdown_cb, &shutdown_ctx)) == NULL)
goto out;
if (as_server && (server = server_init(&conf, fdm, wayl)) == NULL)
goto out;
while (tll_length(wayl->terms) > 0) {
const struct sigaction sa = {.sa_handler = &sig_handler};
if (sigaction(SIGINT, &sa, NULL) < 0 || sigaction(SIGTERM, &sa, NULL) < 0) {
LOG_ERRNO("failed to register signal handlers");
goto out;
}
if (as_server)
LOG_INFO("running as server; launch terminals by running footclient");
while (!aborted && (as_server || tll_length(wayl->terms) > 0)) {
if (!fdm_poll(fdm))
break;
}
ret = tll_length(wayl->terms) == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
ret = aborted || tll_length(wayl->terms) == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
out:
shm_fini();