diff options
Diffstat (limited to 'chardev/char.c')
-rw-r--r-- | chardev/char.c | 253 |
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); |