From 6511d39679f296162a90e71685651717a29e78e5 Mon Sep 17 00:00:00 2001 From: Paolo Bonzini Date: Tue, 29 Sep 2015 15:08:05 +0200 Subject: qemu-char: convert serial backend to data-driven creation Reviewed-by: Eric Blake Signed-off-by: Paolo Bonzini --- qemu-char.c | 48 +++++++++++++++++++++++++++++------------------- 1 file changed, 29 insertions(+), 19 deletions(-) (limited to 'qemu-char.c') diff --git a/qemu-char.c b/qemu-char.c index 13fd394..8567580 100644 --- a/qemu-char.c +++ b/qemu-char.c @@ -1886,7 +1886,7 @@ static void win_chr_close(CharDriverState *chr) qemu_chr_be_event(chr, CHR_EVENT_CLOSED); } -static int win_chr_init(CharDriverState *chr, const char *filename) +static int win_chr_init(CharDriverState *chr, const char *filename, Error **errp) { WinCharState *s = chr->opaque; COMMCONFIG comcfg; @@ -1897,25 +1897,25 @@ static int win_chr_init(CharDriverState *chr, const char *filename) s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL); if (!s->hsend) { - fprintf(stderr, "Failed CreateEvent\n"); + error_setg(errp, "Failed CreateEvent"); goto fail; } s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL); if (!s->hrecv) { - fprintf(stderr, "Failed CreateEvent\n"); + error_setg(errp, "Failed CreateEvent"); goto fail; } s->hcom = CreateFile(filename, GENERIC_READ|GENERIC_WRITE, 0, NULL, OPEN_EXISTING, FILE_FLAG_OVERLAPPED, 0); if (s->hcom == INVALID_HANDLE_VALUE) { - fprintf(stderr, "Failed CreateFile (%lu)\n", GetLastError()); + error_setg(errp, "Failed CreateFile (%lu)", GetLastError()); s->hcom = NULL; goto fail; } if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) { - fprintf(stderr, "Failed SetupComm\n"); + error_setg(errp, "Failed SetupComm"); goto fail; } @@ -1926,23 +1926,23 @@ static int win_chr_init(CharDriverState *chr, const char *filename) CommConfigDialog(filename, NULL, &comcfg); if (!SetCommState(s->hcom, &comcfg.dcb)) { - fprintf(stderr, "Failed SetCommState\n"); + error_setg(errp, "Failed SetCommState"); goto fail; } if (!SetCommMask(s->hcom, EV_ERR)) { - fprintf(stderr, "Failed SetCommMask\n"); + error_setg(errp, "Failed SetCommMask"); goto fail; } cto.ReadIntervalTimeout = MAXDWORD; if (!SetCommTimeouts(s->hcom, &cto)) { - fprintf(stderr, "Failed SetCommTimeouts\n"); + error_setg(errp, "Failed SetCommTimeouts"); goto fail; } if (!ClearCommError(s->hcom, &err, &comstat)) { - fprintf(stderr, "Failed ClearCommError\n"); + error_setg(errp, "Failed ClearCommError"); goto fail; } qemu_add_polling_cb(win_chr_poll, chr); @@ -2047,7 +2047,8 @@ static int win_chr_poll(void *opaque) return 0; } -static CharDriverState *qemu_chr_open_win_path(const char *filename) +static CharDriverState *qemu_chr_open_win_path(const char *filename, + Error **errp) { CharDriverState *chr; WinCharState *s; @@ -2058,7 +2059,7 @@ static CharDriverState *qemu_chr_open_win_path(const char *filename) chr->chr_write = win_chr_write; chr->chr_close = win_chr_close; - if (win_chr_init(chr, filename) < 0) { + if (win_chr_init(chr, filename, errp) < 0) { g_free(s); g_free(chr); return NULL; @@ -3465,6 +3466,7 @@ static void qemu_chr_parse_stdio(QemuOpts *opts, ChardevBackend *backend, backend->stdio->signal = qemu_opt_get_bool(opts, "signal", true); } +#ifdef HAVE_CHARDEV_SERIAL static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend, Error **errp) { @@ -3477,6 +3479,7 @@ static void qemu_chr_parse_serial(QemuOpts *opts, ChardevBackend *backend, backend->serial = g_new0(ChardevHostdev, 1); backend->serial->device = g_strdup(device); } +#endif static void qemu_chr_parse_parallel(QemuOpts *opts, ChardevBackend *backend, Error **errp) @@ -4032,10 +4035,13 @@ static CharDriverState *qmp_chardev_open_file(const char *id, return qemu_chr_open_win_file(out); } -static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial, +static CharDriverState *qmp_chardev_open_serial(const char *id, + ChardevBackend *backend, + ChardevReturn *ret, Error **errp) { - return qemu_chr_open_win_path(serial->device); + ChardevHostdev *serial = backend->serial; + return qemu_chr_open_win_path(serial->device, errp); } static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel, @@ -4086,9 +4092,12 @@ static CharDriverState *qmp_chardev_open_file(const char *id, } #ifdef HAVE_CHARDEV_SERIAL -static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial, +static CharDriverState *qmp_chardev_open_serial(const char *id, + ChardevBackend *backend, + ChardevReturn *ret, Error **errp) { + ChardevHostdev *serial = backend->serial; int fd; fd = qmp_chardev_open_file_source(serial->device, O_RDWR, errp); @@ -4098,6 +4107,7 @@ static CharDriverState *qmp_chardev_open_serial(ChardevHostdev *serial, qemu_set_nonblock(fd); return qemu_chr_open_tty_fd(fd); } +#endif #ifdef HAVE_CHARDEV_PARPORT static CharDriverState *qmp_chardev_open_parallel(ChardevHostdev *parallel, @@ -4252,11 +4262,9 @@ ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend, case CHARDEV_BACKEND_KIND_FILE: abort(); break; -#ifdef HAVE_CHARDEV_SERIAL case CHARDEV_BACKEND_KIND_SERIAL: - chr = qmp_chardev_open_serial(backend->serial, &local_err); + abort(); break; -#endif #ifdef HAVE_CHARDEV_PARPORT case CHARDEV_BACKEND_KIND_PARALLEL: chr = qmp_chardev_open_parallel(backend->parallel, &local_err); @@ -4391,10 +4399,12 @@ static void register_types(void) qemu_chr_parse_file_out, qmp_chardev_open_file); register_char_driver("stdio", CHARDEV_BACKEND_KIND_STDIO, qemu_chr_parse_stdio, NULL); +#if defined HAVE_CHARDEV_SERIAL register_char_driver("serial", CHARDEV_BACKEND_KIND_SERIAL, - qemu_chr_parse_serial, NULL); + qemu_chr_parse_serial, qmp_chardev_open_serial); register_char_driver("tty", CHARDEV_BACKEND_KIND_SERIAL, - qemu_chr_parse_serial, NULL); + qemu_chr_parse_serial, qmp_chardev_open_serial); +#endif register_char_driver("parallel", CHARDEV_BACKEND_KIND_PARALLEL, qemu_chr_parse_parallel, NULL); register_char_driver("parport", CHARDEV_BACKEND_KIND_PARALLEL, -- cgit v1.1