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/*
Copyright (C) 2009 Red Hat, Inc.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
#ifndef _H_REDWORKER
#define _H_REDWORKER
#include <unistd.h>
#include <errno.h>
#include "red_common.h"
static inline void set_bit(int index, uint32_t *addr)
{
uint32_t mask = 1 << index;
__sync_or_and_fetch(addr, mask);
}
static inline void clear_bit(int index, uint32_t *addr)
{
uint32_t mask = ~(1 << index);
__sync_and_and_fetch(addr, mask);
}
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_READY,
RED_WORKER_MESSAGE_DISPLAY_CONNECT,
RED_WORKER_MESSAGE_DISPLAY_DISCONNECT,
RED_WORKER_MESSAGE_DISPLAY_MIGRATE,
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,
RED_WORKER_MESSAGE_ADD_MEMSLOT,
RED_WORKER_MESSAGE_DEL_MEMSLOT,
RED_WORKER_MESSAGE_RESET_MEMSLOTS,
RED_WORKER_MESSAGE_DESTROY_SURFACES,
RED_WORKER_MESSAGE_CREATE_PRIMARY_SURFACE,
RED_WORKER_MESSAGE_DESTROY_PRIMARY_SURFACE,
RED_WORKER_MESSAGE_RESET_CURSOR,
RED_WORKER_MESSAGE_RESET_IMAGE_CACHE,
RED_WORKER_MESSAGE_DESTROY_SURFACE_WAIT,
RED_WORKER_MESSAGE_LOADVM_COMMANDS,
/* async commands */
RED_WORKER_MESSAGE_UPDATE_ASYNC,
RED_WORKER_MESSAGE_ADD_MEMSLOT_ASYNC,
RED_WORKER_MESSAGE_DESTROY_SURFACES_ASYNC,
RED_WORKER_MESSAGE_CREATE_PRIMARY_SURFACE_ASYNC,
RED_WORKER_MESSAGE_DESTROY_PRIMARY_SURFACE_ASYNC,
RED_WORKER_MESSAGE_DESTROY_SURFACE_WAIT_ASYNC,
/* suspend/windows resolution change command */
RED_WORKER_MESSAGE_FLUSH_SURFACES_ASYNC,
RED_WORKER_MESSAGE_DISPLAY_CHANNEL_CREATE,
RED_WORKER_MESSAGE_CURSOR_CHANNEL_CREATE,
RED_WORKER_MESSAGE_MONITORS_CONFIG_ASYNC,
RED_WORKER_MESSAGE_DRIVER_UNLOAD,
RED_WORKER_MESSAGE_COUNT // LAST
};
typedef uint32_t RedWorkerMessage;
#define RED_MAX_RENDERERS 4
enum {
RED_RENDERER_INVALID,
RED_RENDERER_SW,
RED_RENDERER_OGL_PBUF,
RED_RENDERER_OGL_PIXMAP,
};
typedef struct RedDispatcher RedDispatcher;
typedef struct WorkerInitData {
struct QXLInstance *qxl;
int id;
uint32_t *pending;
uint32_t num_renderers;
uint32_t renderers[RED_MAX_RENDERERS];
spice_image_compression_t image_compression;
spice_wan_compression_t jpeg_state;
spice_wan_compression_t zlib_glz_state;
int streaming_video;
uint32_t num_memslots;
uint32_t num_memslots_groups;
uint8_t memslot_gen_bits;
uint8_t memslot_id_bits;
uint8_t internal_groupslot_id;
uint32_t n_surfaces;
RedDispatcher *red_dispatcher;
} 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;
}
spice_error("%s", strerror(errno));
}
buf += now;
n -= now;
} while (n);
}
static inline void write_message(int fd, RedWorkerMessage *message)
{
send_data(fd, message, sizeof(RedWorkerMessage));
}
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;
}
spice_error("%s", strerror(errno));
}
buf += now;
n -= now;
} while (n);
}
static inline void read_message(int fd, RedWorkerMessage *message)
{
receive_data(fd, message, sizeof(RedWorkerMessage));
}
#endif
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