[Qemu-devel] [PATCH 34/40] char: move stdio in its own file

["Marc-André Lureau" <marcandre.lureau@redhat.com>]

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
---
 chardev/char-stdio.c  | 141 ++++++++++++++++++++++++++++++++++++++++++++++++++
 chardev/char.c        | 120 ------------------------------------------
 chardev/Makefile.objs |   1 +
 3 files changed, 142 insertions(+), 120 deletions(-)
 create mode 100644 chardev/char-stdio.c

diff --git a/chardev/char-stdio.c b/chardev/char-stdio.c
new file mode 100644
index 0000000000..610fc65b0f
--- /dev/null
+++ b/chardev/char-stdio.c
@@ -0,0 +1,141 @@
+#include "qemu/osdep.h"
+#include "qemu/sockets.h"
+#include "qapi/error.h"
+#include "qemu-common.h"
+#include "sysemu/char.h"
+
+#ifdef _WIN32
+#include "char-win.h"
+#include "char-win-stdio.h"
+#else
+#include <termios.h>
+#include "char-fd.h"
+#endif
+
+#ifndef _WIN32
+/* init terminal so that we can grab keys */
+static struct termios oldtty;
+static int old_fd0_flags;
+static bool stdio_in_use;
+static bool stdio_allow_signal;
+static bool stdio_echo_state;
+
+static void term_exit(void)
+{
+    tcsetattr(0, TCSANOW, &oldtty);
+    fcntl(0, F_SETFL, old_fd0_flags);
+}
+
+static void qemu_chr_set_echo_stdio(Chardev *chr, bool echo)
+{
+    struct termios tty;
+
+    stdio_echo_state = echo;
+    tty = oldtty;
+    if (!echo) {
+        tty.c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP
+                         | INLCR | IGNCR | ICRNL | IXON);
+        tty.c_oflag |= OPOST;
+        tty.c_lflag &= ~(ECHO | ECHONL | ICANON | IEXTEN);
+        tty.c_cflag &= ~(CSIZE | PARENB);
+        tty.c_cflag |= CS8;
+        tty.c_cc[VMIN] = 1;
+        tty.c_cc[VTIME] = 0;
+    }
+    if (!stdio_allow_signal) {
+        tty.c_lflag &= ~ISIG;
+    }
+
+    tcsetattr(0, TCSANOW, &tty);
+}
+
+static void term_stdio_handler(int sig)
+{
+    /* restore echo after resume from suspend. */
+    qemu_chr_set_echo_stdio(NULL, stdio_echo_state);
+}
+
+static void qemu_chr_open_stdio(Chardev *chr,
+                                ChardevBackend *backend,
+                                bool *be_opened,
+                                Error **errp)
+{
+    ChardevStdio *opts = backend->u.stdio.data;
+    struct sigaction act;
+
+    if (is_daemonized()) {
+        error_setg(errp, "cannot use stdio with -daemonize");
+        return;
+    }
+
+    if (stdio_in_use) {
+        error_setg(errp, "cannot use stdio by multiple character devices");
+        return;
+    }
+
+    stdio_in_use = true;
+    old_fd0_flags = fcntl(0, F_GETFL);
+    tcgetattr(0, &oldtty);
+    qemu_set_nonblock(0);
+    atexit(term_exit);
+
+    memset(&act, 0, sizeof(act));
+    act.sa_handler = term_stdio_handler;
+    sigaction(SIGCONT, &act, NULL);
+
+    qemu_chr_open_fd(chr, 0, 1);
+
+    if (opts->has_signal) {
+        stdio_allow_signal = opts->signal;
+    }
+    qemu_chr_set_echo_stdio(chr, false);
+}
+#endif
+
+static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
+                                 Error **errp)
+{
+    ChardevStdio *stdio;
+
+    backend->type = CHARDEV_BACKEND_KIND_STDIO;
+    stdio = backend->u.stdio.data = g_new0(ChardevStdio, 1);
+    qemu_chr_parse_common(opts, qapi_ChardevStdio_base(stdio));
+    stdio->has_signal = true;
+    stdio->signal = qemu_opt_get_bool(opts, "signal", true);
+}
+
+static void char_stdio_class_init(ObjectClass *oc, void *data)
+{
+    ChardevClass *cc = CHARDEV_CLASS(oc);
+
+    cc->parse = qemu_chr_parse_stdio;
+#ifndef _WIN32
+    cc->open = qemu_chr_open_stdio;
+    cc->chr_set_echo = qemu_chr_set_echo_stdio;
+#endif
+}
+
+static void char_stdio_finalize(Object *obj)
+{
+#ifndef _WIN32
+    term_exit();
+#endif
+}
+
+static const TypeInfo char_stdio_type_info = {
+    .name = TYPE_CHARDEV_STDIO,
+#ifdef _WIN32
+    .parent = TYPE_CHARDEV_WIN_STDIO,
+#else
+    .parent = TYPE_CHARDEV_FD,
+#endif
+    .instance_finalize = char_stdio_finalize,
+    .class_init = char_stdio_class_init,
+};
+
+static void register_types(void)
+{
+    type_register_static(&char_stdio_type_info);
+}
+
+type_init(register_types);
diff --git a/chardev/char.c b/chardev/char.c
index abf6ad820c..bd91826f8c 100644
--- a/chardev/char.c
+++ b/chardev/char.c
@@ -90,7 +90,6 @@
 #include "char-io.h"
 #ifdef _WIN32
 #include "char-win.h"
-#include "char-win-stdio.h"
 #endif
 
 /***********************************************************/
@@ -687,90 +686,6 @@ static void qemu_chr_open_pipe(Chardev *chr,
     qemu_chr_open_fd(chr, fd_in, fd_out);
 }
 
-/* init terminal so that we can grab keys */
-static struct termios oldtty;
-static int old_fd0_flags;
-static bool stdio_in_use;
-static bool stdio_allow_signal;
-static bool stdio_echo_state;
-
-static void qemu_chr_set_echo_stdio(Chardev *chr, bool echo);
-
-static void term_exit(void)
-{
-    tcsetattr (0, TCSANOW, &oldtty);
-    fcntl(0, F_SETFL, old_fd0_flags);
-}
-
-static void term_stdio_handler(int sig)
-{
-    /* restore echo after resume from suspend. */
-    qemu_chr_set_echo_stdio(NULL, stdio_echo_state);
-}
-
-static void qemu_chr_set_echo_stdio(Chardev *chr, bool echo)
-{
-    struct termios tty;
-
-    stdio_echo_state = echo;
-    tty = oldtty;
-    if (!echo) {
-        tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
-                          |INLCR|IGNCR|ICRNL|IXON);
-        tty.c_oflag |= OPOST;
-        tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
-        tty.c_cflag &= ~(CSIZE|PARENB);
-        tty.c_cflag |= CS8;
-        tty.c_cc[VMIN] = 1;
-        tty.c_cc[VTIME] = 0;
-    }
-    if (!stdio_allow_signal)
-        tty.c_lflag &= ~ISIG;
-
-    tcsetattr (0, TCSANOW, &tty);
-}
-
-static void char_stdio_finalize(Object *obj)
-{
-    term_exit();
-}
-
-static void qemu_chr_open_stdio(Chardev *chr,
-                                ChardevBackend *backend,
-                                bool *be_opened,
-                                Error **errp)
-{
-    ChardevStdio *opts = backend->u.stdio.data;
-    struct sigaction act;
-
-    if (is_daemonized()) {
-        error_setg(errp, "cannot use stdio with -daemonize");
-        return;
-    }
-
-    if (stdio_in_use) {
-        error_setg(errp, "cannot use stdio by multiple character devices");
-        return;
-    }
-
-    stdio_in_use = true;
-    old_fd0_flags = fcntl(0, F_GETFL);
-    tcgetattr(0, &oldtty);
-    qemu_set_nonblock(0);
-    atexit(term_exit);
-
-    memset(&act, 0, sizeof(act));
-    act.sa_handler = term_stdio_handler;
-    sigaction(SIGCONT, &act, NULL);
-
-    qemu_chr_open_fd(chr, 0, 1);
-
-    if (opts->has_signal) {
-        stdio_allow_signal = opts->signal;
-    }
-    qemu_chr_set_echo_stdio(chr, false);
-}
-
 #if defined(__linux__) || defined(__sun__) || defined(__FreeBSD__) \
     || defined(__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__) \
     || defined(__GLIBC__)
@@ -1687,40 +1602,6 @@ void qemu_chr_parse_common(QemuOpts *opts, ChardevCommon *backend)
     backend->logappend = qemu_opt_get_bool(opts, "logappend", false);
 }
 
-static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend,
-                                 Error **errp)
-{
-    ChardevStdio *stdio;
-
-    backend->type = CHARDEV_BACKEND_KIND_STDIO;
-    stdio = backend->u.stdio.data = g_new0(ChardevStdio, 1);
-    qemu_chr_parse_common(opts, qapi_ChardevStdio_base(stdio));
-    stdio->has_signal = true;
-    stdio->signal = qemu_opt_get_bool(opts, "signal", true);
-}
-
-static void char_stdio_class_init(ObjectClass *oc, void *data)
-{
-    ChardevClass *cc = CHARDEV_CLASS(oc);
-
-    cc->parse = qemu_chr_parse_stdio;
-#ifndef _WIN32
-    cc->open = qemu_chr_open_stdio;
-    cc->chr_set_echo = qemu_chr_set_echo_stdio;
-#endif
-}
-
-static const TypeInfo char_stdio_type_info = {
-    .name = TYPE_CHARDEV_STDIO,
-#ifdef _WIN32
-    .parent = TYPE_CHARDEV_WIN_STDIO,
-#else
-    .parent = TYPE_CHARDEV_FD,
-    .instance_finalize = char_stdio_finalize,
-#endif
-    .class_init = char_stdio_class_init,
-};
-
 #ifdef HAVE_CHARDEV_SERIAL
 static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend,
                                   Error **errp)
@@ -2431,7 +2312,6 @@ void qemu_chr_cleanup(void)
 static void register_types(void)
 {
     type_register_static(&char_type_info);
-    type_register_static(&char_stdio_type_info);
 #ifdef HAVE_CHARDEV_SERIAL
     type_register_static(&char_serial_type_info);
 #endif
diff --git a/chardev/Makefile.objs b/chardev/Makefile.objs
index 0051a7a819..ee40e8a1d7 100644
--- a/chardev/Makefile.objs
+++ b/chardev/Makefile.objs
@@ -6,6 +6,7 @@ chardev-obj-y += char-mux.o
 chardev-obj-y += char-null.o
 chardev-obj-y += char-ringbuf.o
 chardev-obj-y += char-socket.o
+chardev-obj-y += char-stdio.o
 chardev-obj-y += char-udp.o
 chardev-obj-$(CONFIG_WIN32) += char-win.o
 chardev-obj-$(CONFIG_WIN32) += char-win-stdio.o
-- 
2.11.0