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char: move file 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 +1,139 @@ | ||
| /* | ||
| * 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 "qemu-common.h" | ||
| #include "sysemu/char.h" | ||
|
|
||
| #ifdef _WIN32 | ||
| #include "char-win.h" | ||
| #else | ||
| #include "char-fd.h" | ||
| #endif | ||
|
|
||
| static void qmp_chardev_open_file(Chardev *chr, | ||
| ChardevBackend *backend, | ||
| bool *be_opened, | ||
| Error **errp) | ||
| { | ||
| ChardevFile *file = backend->u.file.data; | ||
| #ifdef _WIN32 | ||
| HANDLE out; | ||
| DWORD accessmode; | ||
| DWORD flags; | ||
|
|
||
| if (file->has_in) { | ||
| error_setg(errp, "input file not supported"); | ||
| return; | ||
| } | ||
|
|
||
| if (file->has_append && file->append) { | ||
| /* Append to file if it already exists. */ | ||
| accessmode = FILE_GENERIC_WRITE & ~FILE_WRITE_DATA; | ||
| flags = OPEN_ALWAYS; | ||
| } else { | ||
| /* Truncate file if it already exists. */ | ||
| accessmode = GENERIC_WRITE; | ||
| flags = CREATE_ALWAYS; | ||
| } | ||
|
|
||
| out = CreateFile(file->out, accessmode, FILE_SHARE_READ, NULL, flags, | ||
| FILE_ATTRIBUTE_NORMAL, NULL); | ||
| if (out == INVALID_HANDLE_VALUE) { | ||
| error_setg(errp, "open %s failed", file->out); | ||
| return; | ||
| } | ||
|
|
||
| qemu_chr_open_win_file(chr, out); | ||
| #else | ||
| int flags, in = -1, out; | ||
|
|
||
| flags = O_WRONLY | O_CREAT | O_BINARY; | ||
| if (file->has_append && file->append) { | ||
| flags |= O_APPEND; | ||
| } else { | ||
| flags |= O_TRUNC; | ||
| } | ||
|
|
||
| out = qmp_chardev_open_file_source(file->out, flags, errp); | ||
| if (out < 0) { | ||
| return; | ||
| } | ||
|
|
||
| if (file->has_in) { | ||
| flags = O_RDONLY; | ||
| in = qmp_chardev_open_file_source(file->in, flags, errp); | ||
| if (in < 0) { | ||
| qemu_close(out); | ||
| return; | ||
| } | ||
| } | ||
|
|
||
| qemu_chr_open_fd(chr, in, out); | ||
| #endif | ||
| } | ||
|
|
||
| static void qemu_chr_parse_file_out(QemuOpts *opts, ChardevBackend *backend, | ||
| Error **errp) | ||
| { | ||
| const char *path = qemu_opt_get(opts, "path"); | ||
| ChardevFile *file; | ||
|
|
||
| backend->type = CHARDEV_BACKEND_KIND_FILE; | ||
| if (path == NULL) { | ||
| error_setg(errp, "chardev: file: no filename given"); | ||
| return; | ||
| } | ||
| file = backend->u.file.data = g_new0(ChardevFile, 1); | ||
| qemu_chr_parse_common(opts, qapi_ChardevFile_base(file)); | ||
| file->out = g_strdup(path); | ||
|
|
||
| file->has_append = true; | ||
| file->append = qemu_opt_get_bool(opts, "append", false); | ||
| } | ||
|
|
||
| static void char_file_class_init(ObjectClass *oc, void *data) | ||
| { | ||
| ChardevClass *cc = CHARDEV_CLASS(oc); | ||
|
|
||
| cc->parse = qemu_chr_parse_file_out; | ||
| cc->open = qmp_chardev_open_file; | ||
| } | ||
|
|
||
| static const TypeInfo char_file_type_info = { | ||
| .name = TYPE_CHARDEV_FILE, | ||
| #ifdef _WIN32 | ||
| .parent = TYPE_CHARDEV_WIN, | ||
| #else | ||
| .parent = TYPE_CHARDEV_FD, | ||
| #endif | ||
| .class_init = char_file_class_init, | ||
| }; | ||
|
|
||
| static void register_types(void) | ||
| { | ||
| type_register_static(&char_file_type_info); | ||
| } | ||
|
|
||
| type_init(register_types); |
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