char: move win chardev base class in its own file

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Eric Blake <eblake@redhat.com>

1 files changed, 3 insertions, 250 deletions

diff --git a/chardev/char.c b/chardev/char.c
index aad57ac17e..b80fcae028 100644
--- a/chardev/char.c
+++ b/chardev/char.c
@@ -88,6 +88,9 @@
 #include "char-mux.h"
 #include "char-fd.h"
 #include "char-io.h"
+#ifdef _WIN32
+#include "char-win.h"
+#endif
 
 #define TCP_MAX_FDS 16
 
@@ -1473,23 +1476,6 @@ static void qemu_chr_open_pp_fd(Chardev *chr,
 
 typedef struct {
     Chardev parent;
-    int max_size;
-    HANDLE hcom, hrecv, hsend;
-    OVERLAPPED orecv;
-    BOOL fpipe;
-    DWORD len;
-
-    /* Protected by the Chardev chr_write_lock.  */
-    OVERLAPPED osend;
-    /* FIXME: file/console do not finalize */
-    bool skip_free;
-} WinChardev;
-
-#define TYPE_CHARDEV_WIN "chardev-win"
-#define WIN_CHARDEV(obj) OBJECT_CHECK(WinChardev, (obj), TYPE_CHARDEV_WIN)
-
-typedef struct {
-    Chardev parent;
     HANDLE  hStdIn;
     HANDLE  hInputReadyEvent;
     HANDLE  hInputDoneEvent;
@@ -1501,217 +1487,9 @@ typedef struct {
 #define WIN_STDIO_CHARDEV(obj)                                  \
     OBJECT_CHECK(WinStdioChardev, (obj), TYPE_CHARDEV_WIN_STDIO)
 
-#define NSENDBUF 2048
-#define NRECVBUF 2048
 #define MAXCONNECT 1
 #define NTIMEOUT 5000
 
-static int win_chr_poll(void *opaque);
-static int win_chr_pipe_poll(void *opaque);
-
-static void char_win_finalize(Object *obj)
-{
-    Chardev *chr = CHARDEV(obj);
-    WinChardev *s = WIN_CHARDEV(chr);
-
-    if (s->skip_free) {
-        return;
-    }
-
-    if (s->hsend) {
-        CloseHandle(s->hsend);
-    }
-    if (s->hrecv) {
-        CloseHandle(s->hrecv);
-    }
-    if (s->hcom) {
-        CloseHandle(s->hcom);
-    }
-    if (s->fpipe)
-        qemu_del_polling_cb(win_chr_pipe_poll, chr);
-    else
-        qemu_del_polling_cb(win_chr_poll, chr);
-
-    qemu_chr_be_event(chr, CHR_EVENT_CLOSED);
-}
-
-static int win_chr_init(Chardev *chr, const char *filename, Error **errp)
-{
-    WinChardev *s = WIN_CHARDEV(chr);
-    COMMCONFIG comcfg;
-    COMMTIMEOUTS cto = { 0, 0, 0, 0, 0};
-    COMSTAT comstat;
-    DWORD size;
-    DWORD err;
-
-    s->hsend = CreateEvent(NULL, TRUE, FALSE, NULL);
-    if (!s->hsend) {
-        error_setg(errp, "Failed CreateEvent");
-        goto fail;
-    }
-    s->hrecv = CreateEvent(NULL, TRUE, FALSE, NULL);
-    if (!s->hrecv) {
-        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) {
-        error_setg(errp, "Failed CreateFile (%lu)", GetLastError());
-        s->hcom = NULL;
-        goto fail;
-    }
-
-    if (!SetupComm(s->hcom, NRECVBUF, NSENDBUF)) {
-        error_setg(errp, "Failed SetupComm");
-        goto fail;
-    }
-
-    ZeroMemory(&comcfg, sizeof(COMMCONFIG));
-    size = sizeof(COMMCONFIG);
-    GetDefaultCommConfig(filename, &comcfg, &size);
-    comcfg.dcb.DCBlength = sizeof(DCB);
-    CommConfigDialog(filename, NULL, &comcfg);
-
-    if (!SetCommState(s->hcom, &comcfg.dcb)) {
-        error_setg(errp, "Failed SetCommState");
-        goto fail;
-    }
-
-    if (!SetCommMask(s->hcom, EV_ERR)) {
-        error_setg(errp, "Failed SetCommMask");
-        goto fail;
-    }
-
-    cto.ReadIntervalTimeout = MAXDWORD;
-    if (!SetCommTimeouts(s->hcom, &cto)) {
-        error_setg(errp, "Failed SetCommTimeouts");
-        goto fail;
-    }
-
-    if (!ClearCommError(s->hcom, &err, &comstat)) {
-        error_setg(errp, "Failed ClearCommError");
-        goto fail;
-    }
-    qemu_add_polling_cb(win_chr_poll, chr);
-    return 0;
-
- fail:
-    return -1;
-}
-
-/* Called with chr_write_lock held.  */
-static int win_chr_write(Chardev *chr, const uint8_t *buf, int len1)
-{
-    WinChardev *s = WIN_CHARDEV(chr);
-    DWORD len, ret, size, err;
-
-    len = len1;
-    ZeroMemory(&s->osend, sizeof(s->osend));
-    s->osend.hEvent = s->hsend;
-    while (len > 0) {
-        if (s->hsend)
-            ret = WriteFile(s->hcom, buf, len, &size, &s->osend);
-        else
-            ret = WriteFile(s->hcom, buf, len, &size, NULL);
-        if (!ret) {
-            err = GetLastError();
-            if (err == ERROR_IO_PENDING) {
-                ret = GetOverlappedResult(s->hcom, &s->osend, &size, TRUE);
-                if (ret) {
-                    buf += size;
-                    len -= size;
-                } else {
-                    break;
-                }
-            } else {
-                break;
-            }
-        } else {
-            buf += size;
-            len -= size;
-        }
-    }
-    return len1 - len;
-}
-
-static int win_chr_read_poll(Chardev *chr)
-{
-    WinChardev *s = WIN_CHARDEV(chr);
-
-    s->max_size = qemu_chr_be_can_write(chr);
-    return s->max_size;
-}
-
-static void win_chr_readfile(Chardev *chr)
-{
-    WinChardev *s = WIN_CHARDEV(chr);
-
-    int ret, err;
-    uint8_t buf[CHR_READ_BUF_LEN];
-    DWORD size;
-
-    ZeroMemory(&s->orecv, sizeof(s->orecv));
-    s->orecv.hEvent = s->hrecv;
-    ret = ReadFile(s->hcom, buf, s->len, &size, &s->orecv);
-    if (!ret) {
-        err = GetLastError();
-        if (err == ERROR_IO_PENDING) {
-            ret = GetOverlappedResult(s->hcom, &s->orecv, &size, TRUE);
-        }
-    }
-
-    if (size > 0) {
-        qemu_chr_be_write(chr, buf, size);
-    }
-}
-
-static void win_chr_read(Chardev *chr)
-{
-    WinChardev *s = WIN_CHARDEV(chr);
-
-    if (s->len > s->max_size)
-        s->len = s->max_size;
-    if (s->len == 0)
-        return;
-
-    win_chr_readfile(chr);
-}
-
-static int win_chr_poll(void *opaque)
-{
-    Chardev *chr = CHARDEV(opaque);
-    WinChardev *s = WIN_CHARDEV(opaque);
-    COMSTAT status;
-    DWORD comerr;
-
-    ClearCommError(s->hcom, &comerr, &status);
-    if (status.cbInQue > 0) {
-        s->len = status.cbInQue;
-        win_chr_read_poll(chr);
-        win_chr_read(chr);
-        return 1;
-    }
-    return 0;
-}
-
-static int win_chr_pipe_poll(void *opaque)
-{
-    Chardev *chr = CHARDEV(opaque);
-    WinChardev *s = WIN_CHARDEV(opaque);
-    DWORD size;
-
-    PeekNamedPipe(s->hcom, NULL, 0, NULL, &size, NULL);
-    if (size > 0) {
-        s->len = size;
-        win_chr_read_poll(chr);
-        win_chr_read(chr);
-        return 1;
-    }
-    return 0;
-}
-
 static int win_chr_pipe_init(Chardev *chr, const char *filename,
                              Error **errp)
 {
@@ -1789,30 +1567,6 @@ static void qemu_chr_open_pipe(Chardev *chr,
     }
 }
 
-static void qemu_chr_open_win_file(Chardev *chr, HANDLE fd_out)
-{
-    WinChardev *s = WIN_CHARDEV(chr);
-
-    s->skip_free = true;
-    s->hcom = fd_out;
-}
-
-static void char_win_class_init(ObjectClass *oc, void *data)
-{
-    ChardevClass *cc = CHARDEV_CLASS(oc);
-
-    cc->chr_write = win_chr_write;
-}
-
-static const TypeInfo char_win_type_info = {
-    .name = TYPE_CHARDEV_WIN,
-    .parent = TYPE_CHARDEV,
-    .instance_size = sizeof(WinChardev),
-    .instance_finalize = char_win_finalize,
-    .class_init = char_win_class_init,
-    .abstract = true,
-};
-
 static void qemu_chr_open_win_con(Chardev *chr,
                                   ChardevBackend *backend,
                                   bool *be_opened,
@@ -4202,7 +3956,6 @@ static void register_types(void)
 {
     type_register_static(&char_type_info);
 #ifdef _WIN32
-    type_register_static(&char_win_type_info);
     type_register_static(&char_win_stdio_type_info);
 #endif
     type_register_static(&char_socket_type_info);