mirror of
https://github.com/xemu-project/xemu.git
synced 2024-12-05 18:27:42 +00:00
8228e353d8
So they are all in one place. The following patch will move serial & parallel declarations to the respective headers. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
192 lines
5.4 KiB
C
192 lines
5.4 KiB
C
/*
|
|
* 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 "chardev/char.h"
|
|
|
|
#ifdef _WIN32
|
|
#include "chardev/char-win.h"
|
|
#else
|
|
#include "chardev/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->file = 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->file == INVALID_HANDLE_VALUE) {
|
|
error_setg(errp, "Failed CreateNamedPipe (%lu)", GetLastError());
|
|
s->file = NULL;
|
|
goto fail;
|
|
}
|
|
|
|
ZeroMemory(&ov, sizeof(ov));
|
|
ov.hEvent = CreateEvent(NULL, TRUE, FALSE, NULL);
|
|
ret = ConnectNamedPipe(s->file, &ov);
|
|
if (ret) {
|
|
error_setg(errp, "Failed ConnectNamedPipe");
|
|
goto fail;
|
|
}
|
|
|
|
ret = GetOverlappedResult(s->file, &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 */
|
|
|
|
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);
|
|
|
|
cc->parse = qemu_chr_parse_pipe;
|
|
cc->open = qemu_chr_open_pipe;
|
|
}
|
|
|
|
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);
|