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char: move pipe chardev in its own file
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Acked-by: Eric Blake <eblake@redhat.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,191 @@ | ||
| /* | ||
| * QEMU System Emulator | ||
| * | ||
| * Copyright (c) 2003-2008 Fabrice Bellard | ||
| * | ||
| * Permission is hereby granted, free of charge, to any person obtaining a copy | ||
| * of this software and associated documentation files (the "Software"), to deal | ||
| * in the Software without restriction, including without limitation the rights | ||
| * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | ||
| * copies of the Software, and to permit persons to whom the Software is | ||
| * furnished to do so, subject to the following conditions: | ||
| * | ||
| * The above copyright notice and this permission notice shall be included in | ||
| * all copies or substantial portions of the Software. | ||
| * | ||
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | ||
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | ||
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | ||
| * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | ||
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | ||
| * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | ||
| * THE SOFTWARE. | ||
| */ | ||
| #include "qemu/osdep.h" | ||
| #include "qapi/error.h" | ||
| #include "sysemu/char.h" | ||
|
|
||
| #ifdef _WIN32 | ||
| #include "char-win.h" | ||
| #else | ||
| #include "char-fd.h" | ||
| #endif | ||
|
|
||
| #ifdef _WIN32 | ||
| #define MAXCONNECT 1 | ||
| #define NTIMEOUT 5000 | ||
|
|
||
| static int win_chr_pipe_init(Chardev *chr, const char *filename, | ||
| Error **errp) | ||
| { | ||
| WinChardev *s = WIN_CHARDEV(chr); | ||
| OVERLAPPED ov; | ||
| int ret; | ||
| DWORD size; | ||
| char *openname; | ||
|
|
||
| s->fpipe = TRUE; | ||
|
|
||
| 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; | ||
| } | ||
|
|
||
| openname = g_strdup_printf("\\\\.\\pipe\\%s", filename); | ||
| s->hcom = CreateNamedPipe(openname, | ||
| PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED, | ||
| PIPE_TYPE_BYTE | PIPE_READMODE_BYTE | | ||
| PIPE_WAIT, | ||
| MAXCONNECT, NSENDBUF, NRECVBUF, NTIMEOUT, NULL); | ||
| g_free(openname); | ||
| if (s->hcom == INVALID_HANDLE_VALUE) { | ||
| error_setg(errp, "Failed CreateNamedPipe (%lu)", GetLastError()); | ||
| s->hcom = NULL; | ||
| goto fail; | ||
| } | ||
|
|
||
| ZeroMemory(&ov, sizeof(ov)); | ||
| ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL); | ||
| ret = ConnectNamedPipe(s->hcom, &ov); | ||
| if (ret) { | ||
| error_setg(errp, "Failed ConnectNamedPipe"); | ||
| goto fail; | ||
| } | ||
|
|
||
| ret = GetOverlappedResult(s->hcom, &ov, &size, TRUE); | ||
| if (!ret) { | ||
| error_setg(errp, "Failed GetOverlappedResult"); | ||
| if (ov.hEvent) { | ||
| CloseHandle(ov.hEvent); | ||
| ov.hEvent = NULL; | ||
| } | ||
| goto fail; | ||
| } | ||
|
|
||
| if (ov.hEvent) { | ||
| CloseHandle(ov.hEvent); | ||
| ov.hEvent = NULL; | ||
| } | ||
| qemu_add_polling_cb(win_chr_pipe_poll, chr); | ||
| return 0; | ||
|
|
||
| fail: | ||
| return -1; | ||
| } | ||
|
|
||
| static void qemu_chr_open_pipe(Chardev *chr, | ||
| ChardevBackend *backend, | ||
| bool *be_opened, | ||
| Error **errp) | ||
| { | ||
| ChardevHostdev *opts = backend->u.pipe.data; | ||
| const char *filename = opts->device; | ||
|
|
||
| if (win_chr_pipe_init(chr, filename, errp) < 0) { | ||
| return; | ||
| } | ||
| } | ||
|
|
||
| #else | ||
|
|
||
| static void qemu_chr_open_pipe(Chardev *chr, | ||
| ChardevBackend *backend, | ||
| bool *be_opened, | ||
| Error **errp) | ||
| { | ||
| ChardevHostdev *opts = backend->u.pipe.data; | ||
| int fd_in, fd_out; | ||
| char *filename_in; | ||
| char *filename_out; | ||
| const char *filename = opts->device; | ||
|
|
||
| filename_in = g_strdup_printf("%s.in", filename); | ||
| filename_out = g_strdup_printf("%s.out", filename); | ||
| TFR(fd_in = qemu_open(filename_in, O_RDWR | O_BINARY)); | ||
| TFR(fd_out = qemu_open(filename_out, O_RDWR | O_BINARY)); | ||
| g_free(filename_in); | ||
| g_free(filename_out); | ||
| if (fd_in < 0 || fd_out < 0) { | ||
| if (fd_in >= 0) { | ||
| close(fd_in); | ||
| } | ||
| if (fd_out >= 0) { | ||
| close(fd_out); | ||
| } | ||
| TFR(fd_in = fd_out = qemu_open(filename, O_RDWR | O_BINARY)); | ||
| if (fd_in < 0) { | ||
| error_setg_file_open(errp, errno, filename); | ||
| return; | ||
| } | ||
| } | ||
| qemu_chr_open_fd(chr, fd_in, fd_out); | ||
| } | ||
|
|
||
| #endif /* !_WIN32 */ | ||
|
|
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| static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend, | ||
| Error **errp) | ||
| { | ||
| const char *device = qemu_opt_get(opts, "path"); | ||
| ChardevHostdev *dev; | ||
|
|
||
| if (device == NULL) { | ||
| error_setg(errp, "chardev: pipe: no device path given"); | ||
| return; | ||
| } | ||
| backend->type = CHARDEV_BACKEND_KIND_PIPE; | ||
| dev = backend->u.pipe.data = g_new0(ChardevHostdev, 1); | ||
| qemu_chr_parse_common(opts, qapi_ChardevHostdev_base(dev)); | ||
| dev->device = g_strdup(device); | ||
| } | ||
|
|
||
| static void char_pipe_class_init(ObjectClass *oc, void *data) | ||
| { | ||
| ChardevClass *cc = CHARDEV_CLASS(oc); | ||
|
|
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| cc->parse = qemu_chr_parse_pipe; | ||
| cc->open = qemu_chr_open_pipe; | ||
| } | ||
|
|
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| static const TypeInfo char_pipe_type_info = { | ||
| .name = TYPE_CHARDEV_PIPE, | ||
| #ifdef _WIN32 | ||
| .parent = TYPE_CHARDEV_WIN, | ||
| #else | ||
| .parent = TYPE_CHARDEV_FD, | ||
| #endif | ||
| .class_init = char_pipe_class_init, | ||
| }; | ||
|
|
||
| static void register_types(void) | ||
| { | ||
| type_register_static(&char_pipe_type_info); | ||
| } | ||
|
|
||
| type_init(register_types); |
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