fresh start

1 files changed, 134 insertions, 0 deletions

diff --git a/server/red_worker.h b/server/red_worker.h
new file mode 100644
index 00000000..097d4540
--- /dev/null
+++ b/server/red_worker.h
@@ -0,0 +1,134 @@
+/*
+   Copyright (C) 2009 Red Hat, Inc.
+
+   This program is free software; you can redistribute it and/or
+   modify it under the terms of the GNU General Public License as
+   published by the Free Software Foundation; either version 2 of
+   the License, or (at your option) any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef _H_REDWORKER
+#define _H_REDWORKER
+
+#include "red_common.h"
+
+
+static inline void set_bit(int index, uint32_t *addr)
+{
+    __asm__ __volatile__ ("lock btsl %1, %0": : "m" (*addr), "r" (index));
+}
+
+static inline void clear_bit(int index, uint32_t *addr)
+{
+    __asm__ __volatile__ ("lock btrl %1, %0": : "m" (*addr), "r" (index));
+}
+
+static inline int test_bit(int index, uint32_t val)
+{
+    return val & (1u << index);
+}
+
+enum {
+    RED_WORKER_PENDING_WAKEUP,
+    RED_WORKER_PENDING_OOM,
+};
+
+enum {
+    RED_WORKER_MESSAGE_NOP,
+    RED_WORKER_MESSAGE_UPDATE,
+    RED_WORKER_MESSAGE_WAKEUP,
+    RED_WORKER_MESSAGE_OOM,
+    RED_WORKER_MESSAGE_ATTACH,
+    RED_WORKER_MESSAGE_DETACH,
+    RED_WORKER_MESSAGE_READY,
+    RED_WORKER_MESSAGE_DISPLAY_CONNECT,
+    RED_WORKER_MESSAGE_DISPLAY_DISCONNECT,
+    RED_WORKER_MESSAGE_DISPLAY_MIGRATE,
+    RED_WORKER_MESSAGE_SAVE,
+    RED_WORKER_MESSAGE_LOAD,
+    RED_WORKER_MESSAGE_START,
+    RED_WORKER_MESSAGE_STOP,
+    RED_WORKER_MESSAGE_CURSOR_CONNECT,
+    RED_WORKER_MESSAGE_CURSOR_DISCONNECT,
+    RED_WORKER_MESSAGE_CURSOR_MIGRATE,
+    RED_WORKER_MESSAGE_SET_COMPRESSION,
+    RED_WORKER_MESSAGE_SET_STREAMING_VIDEO,
+    RED_WORKER_MESSAGE_SET_MOUSE_MODE,
+};
+
+typedef uint32_t RedWorkeMessage;
+
+#define RED_MAX_RENDERERS 4
+
+enum {
+    RED_RENDERER_INVALID,
+    RED_RENDERER_CAIRO,
+    RED_RENDERER_OGL_PBUF,
+    RED_RENDERER_OGL_PIXMAP,
+};
+
+typedef struct WorkerInitData {
+    struct QXLInterface *qxl_interface;
+    int id;
+    int channel;
+    uint32_t *pending;
+    uint32_t num_renderers;
+    uint32_t renderers[RED_MAX_RENDERERS];
+    image_compression_t image_compression;
+    int streaming_video;
+} WorkerInitData;
+
+void *red_worker_main(void *arg);
+
+static inline void send_data(int fd, void *in_buf, int n)
+{
+    uint8_t *buf = in_buf;
+    do {
+        int now;
+        if ((now = write(fd, buf, n)) == -1) {
+            if (errno == EINTR) {
+                continue;
+            }
+            red_error("%s", strerror(errno));
+        }
+        buf += now;
+        n -= now;
+    } while (n);
+}
+
+static inline void write_message(int fd, RedWorkeMessage *message)
+{
+    send_data(fd, message, sizeof(RedWorkeMessage));
+}
+
+static inline void receive_data(int fd, void *in_buf, int n)
+{
+    uint8_t *buf = in_buf;
+    do {
+        int now;
+        if ((now = read(fd, buf, n)) == -1) {
+            if (errno == EINTR) {
+                continue;
+            }
+            red_error("%s", strerror(errno));
+        }
+        buf += now;
+        n -= now;
+    } while (n);
+}
+
+static inline void read_message(int fd, RedWorkeMessage *message)
+{
+    receive_data(fd, message, sizeof(RedWorkeMessage));
+}
+
+#endif
+