char: move stdio in its own file
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
This commit is contained in:
Marc-André Lureau
parent
6fdafac1c1
commit
d180081525
@ -6,6 +6,7 @@ chardev-obj-y += char-mux.o
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chardev-obj-y += char-null.o
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chardev-obj-y += char-ringbuf.o
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chardev-obj-y += char-socket.o
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chardev-obj-y += char-stdio.o
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chardev-obj-y += char-udp.o
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chardev-obj-$(CONFIG_WIN32) += char-win.o
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chardev-obj-$(CONFIG_WIN32) += char-win-stdio.o
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164
chardev/char-stdio.c
Normal file
164
chardev/char-stdio.c
Normal file
@ -0,0 +1,164 @@
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/*
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* QEMU System Emulator
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*
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* Copyright (c) 2003-2008 Fabrice Bellard
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include "qemu/osdep.h"
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#include "qemu/sockets.h"
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#include "qapi/error.h"
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#include "qemu-common.h"
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#include "sysemu/char.h"
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#ifdef _WIN32
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#include "char-win.h"
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#include "char-win-stdio.h"
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#else
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#include <termios.h>
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#include "char-fd.h"
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#endif
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#ifndef _WIN32
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/* init terminal so that we can grab keys */
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static struct termios oldtty;
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static int old_fd0_flags;
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static bool stdio_in_use;
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static bool stdio_allow_signal;
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static bool stdio_echo_state;
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static void term_exit(void)
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{
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tcsetattr(0, TCSANOW, &oldtty);
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fcntl(0, F_SETFL, old_fd0_flags);
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}
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static void qemu_chr_set_echo_stdio(Chardev *chr, bool echo)
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{
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struct termios tty;
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stdio_echo_state = echo;
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tty = oldtty;
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if (!echo) {
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tty.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP
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| INLCR | IGNCR | ICRNL | IXON);
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tty.c_oflag |= OPOST;
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tty.c_lflag &= ~(ECHO | ECHONL | ICANON | IEXTEN);
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tty.c_cflag &= ~(CSIZE | PARENB);
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tty.c_cflag |= CS8;
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tty.c_cc[VMIN] = 1;
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tty.c_cc[VTIME] = 0;
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}
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if (!stdio_allow_signal) {
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tty.c_lflag &= ~ISIG;
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}
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tcsetattr(0, TCSANOW, &tty);
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}
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static void term_stdio_handler(int sig)
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{
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/* restore echo after resume from suspend. */
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qemu_chr_set_echo_stdio(NULL, stdio_echo_state);
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}
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static void qemu_chr_open_stdio(Chardev *chr,
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ChardevBackend *backend,
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bool *be_opened,
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Error **errp)
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{
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ChardevStdio *opts = backend->u.stdio.data;
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struct sigaction act;
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if (is_daemonized()) {
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error_setg(errp, "cannot use stdio with -daemonize");
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return;
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}
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if (stdio_in_use) {
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error_setg(errp, "cannot use stdio by multiple character devices");
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return;
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}
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stdio_in_use = true;
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old_fd0_flags = fcntl(0, F_GETFL);
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tcgetattr(0, &oldtty);
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qemu_set_nonblock(0);
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atexit(term_exit);
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memset(&act, 0, sizeof(act));
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act.sa_handler = term_stdio_handler;
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sigaction(SIGCONT, &act, NULL);
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qemu_chr_open_fd(chr, 0, 1);
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if (opts->has_signal) {
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stdio_allow_signal = opts->signal;
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}
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qemu_chr_set_echo_stdio(chr, false);
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}
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#endif
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static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
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Error **errp)
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{
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ChardevStdio *stdio;
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backend->type = CHARDEV_BACKEND_KIND_STDIO;
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stdio = backend->u.stdio.data = g_new0(ChardevStdio, 1);
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qemu_chr_parse_common(opts, qapi_ChardevStdio_base(stdio));
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stdio->has_signal = true;
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stdio->signal = qemu_opt_get_bool(opts, "signal", true);
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}
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static void char_stdio_class_init(ObjectClass *oc, void *data)
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{
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ChardevClass *cc = CHARDEV_CLASS(oc);
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cc->parse = qemu_chr_parse_stdio;
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#ifndef _WIN32
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cc->open = qemu_chr_open_stdio;
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cc->chr_set_echo = qemu_chr_set_echo_stdio;
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#endif
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}
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static void char_stdio_finalize(Object *obj)
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{
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#ifndef _WIN32
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term_exit();
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#endif
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}
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static const TypeInfo char_stdio_type_info = {
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.name = TYPE_CHARDEV_STDIO,
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#ifdef _WIN32
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.parent = TYPE_CHARDEV_WIN_STDIO,
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#else
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.parent = TYPE_CHARDEV_FD,
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#endif
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.instance_finalize = char_stdio_finalize,
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.class_init = char_stdio_class_init,
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};
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static void register_types(void)
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{
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type_register_static(&char_stdio_type_info);
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}
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type_init(register_types);
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120
chardev/char.c
120
chardev/char.c
@ -90,7 +90,6 @@
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#include "char-io.h"
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#ifdef _WIN32
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#include "char-win.h"
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#include "char-win-stdio.h"
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#endif
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/***********************************************************/
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@ -687,90 +686,6 @@ static void qemu_chr_open_pipe(Chardev *chr,
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qemu_chr_open_fd(chr, fd_in, fd_out);
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}
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/* init terminal so that we can grab keys */
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static struct termios oldtty;
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static int old_fd0_flags;
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static bool stdio_in_use;
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static bool stdio_allow_signal;
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static bool stdio_echo_state;
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static void qemu_chr_set_echo_stdio(Chardev *chr, bool echo);
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static void term_exit(void)
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{
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tcsetattr (0, TCSANOW, &oldtty);
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fcntl(0, F_SETFL, old_fd0_flags);
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}
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static void term_stdio_handler(int sig)
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{
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/* restore echo after resume from suspend. */
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qemu_chr_set_echo_stdio(NULL, stdio_echo_state);
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}
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static void qemu_chr_set_echo_stdio(Chardev *chr, bool echo)
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{
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struct termios tty;
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stdio_echo_state = echo;
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tty = oldtty;
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if (!echo) {
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tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
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|INLCR|IGNCR|ICRNL|IXON);
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tty.c_oflag |= OPOST;
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tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
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tty.c_cflag &= ~(CSIZE|PARENB);
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tty.c_cflag |= CS8;
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tty.c_cc[VMIN] = 1;
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tty.c_cc[VTIME] = 0;
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}
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if (!stdio_allow_signal)
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tty.c_lflag &= ~ISIG;
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tcsetattr (0, TCSANOW, &tty);
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}
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static void char_stdio_finalize(Object *obj)
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{
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term_exit();
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}
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static void qemu_chr_open_stdio(Chardev *chr,
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ChardevBackend *backend,
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bool *be_opened,
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Error **errp)
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{
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ChardevStdio *opts = backend->u.stdio.data;
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struct sigaction act;
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if (is_daemonized()) {
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error_setg(errp, "cannot use stdio with -daemonize");
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return;
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}
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if (stdio_in_use) {
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error_setg(errp, "cannot use stdio by multiple character devices");
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return;
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}
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stdio_in_use = true;
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old_fd0_flags = fcntl(0, F_GETFL);
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tcgetattr(0, &oldtty);
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qemu_set_nonblock(0);
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atexit(term_exit);
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memset(&act, 0, sizeof(act));
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act.sa_handler = term_stdio_handler;
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sigaction(SIGCONT, &act, NULL);
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qemu_chr_open_fd(chr, 0, 1);
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if (opts->has_signal) {
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stdio_allow_signal = opts->signal;
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}
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qemu_chr_set_echo_stdio(chr, false);
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}
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#if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
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|| defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
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|| defined(__GLIBC__)
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@ -1687,40 +1602,6 @@ void qemu_chr_parse_common(QemuOpts *opts, ChardevCommon *backend)
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backend->logappend = qemu_opt_get_bool(opts, "logappend", false);
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}
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static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
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Error **errp)
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{
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ChardevStdio *stdio;
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backend->type = CHARDEV_BACKEND_KIND_STDIO;
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stdio = backend->u.stdio.data = g_new0(ChardevStdio, 1);
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qemu_chr_parse_common(opts, qapi_ChardevStdio_base(stdio));
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stdio->has_signal = true;
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stdio->signal = qemu_opt_get_bool(opts, "signal", true);
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}
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static void char_stdio_class_init(ObjectClass *oc, void *data)
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{
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ChardevClass *cc = CHARDEV_CLASS(oc);
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cc->parse = qemu_chr_parse_stdio;
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#ifndef _WIN32
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cc->open = qemu_chr_open_stdio;
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cc->chr_set_echo = qemu_chr_set_echo_stdio;
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#endif
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}
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static const TypeInfo char_stdio_type_info = {
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.name = TYPE_CHARDEV_STDIO,
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#ifdef _WIN32
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.parent = TYPE_CHARDEV_WIN_STDIO,
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#else
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.parent = TYPE_CHARDEV_FD,
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.instance_finalize = char_stdio_finalize,
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#endif
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.class_init = char_stdio_class_init,
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};
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#ifdef HAVE_CHARDEV_SERIAL
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static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
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Error **errp)
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@ -2453,7 +2334,6 @@ void qemu_chr_cleanup(void)
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static void register_types(void)
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{
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type_register_static(&char_type_info);
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type_register_static(&char_stdio_type_info);
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#ifdef HAVE_CHARDEV_SERIAL
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type_register_static(&char_serial_type_info);
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#endif
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