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[client] update client to use the common ivshmem* methods

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This commit is contained in:
Geoffrey McRae 2020-01-03 15:17:14 +11:00
parent 074af5d16c
commit 4345d94d68
4 changed files with 37 additions and 65 deletions
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2
VERSION
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@ -1 +1 @@
B1-45-g89d6ea0b5d+1
B1-46-g074af5d16c+1

91
client/src/main.c
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@ -41,6 +41,8 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include "common/stringutils.h"
#include "common/thread.h"
#include "common/event.h"
#include "common/ivshmem.h"
#include "utils.h"
#include "kb.h"
#include "ll.h"
@ -186,8 +188,8 @@ static int cursorThread(void * unused)
while(state.running)
{
// poll until we have cursor data
if(!(state.shm->cursor.flags & KVMFR_CURSOR_FLAG_UPDATE) &&
!(state.shm->cursor.flags & KVMFR_CURSOR_FLAG_POS))
if(!(state.kvmfr->cursor.flags & KVMFR_CURSOR_FLAG_UPDATE) &&
!(state.kvmfr->cursor.flags & KVMFR_CURSOR_FLAG_POS))
{
if (!state.running)
return 0;
@ -197,19 +199,19 @@ static int cursorThread(void * unused)
// if the cursor was moved
bool moved = false;
if (state.shm->cursor.flags & KVMFR_CURSOR_FLAG_POS)
if (state.kvmfr->cursor.flags & KVMFR_CURSOR_FLAG_POS)
{
state.cursor.x = state.shm->cursor.x;
state.cursor.y = state.shm->cursor.y;
state.cursor.x = state.kvmfr->cursor.x;
state.cursor.y = state.kvmfr->cursor.y;
state.haveCursorPos = true;
moved = true;
}
// if this was only a move event
if (!(state.shm->cursor.flags & KVMFR_CURSOR_FLAG_UPDATE))
if (!(state.kvmfr->cursor.flags & KVMFR_CURSOR_FLAG_UPDATE))
{
// turn off the pos flag, trigger the event and continue
__sync_and_and_fetch(&state.shm->cursor.flags, ~KVMFR_CURSOR_FLAG_POS);
__sync_and_and_fetch(&state.kvmfr->cursor.flags, ~KVMFR_CURSOR_FLAG_POS);
state.lgr->on_mouse_event
(
@ -223,7 +225,7 @@ static int cursorThread(void * unused)
// we must take a copy of the header to prevent the contained arguments
// from being abused to overflow buffers.
memcpy(&header, &state.shm->cursor, sizeof(struct KVMFRCursor));
memcpy(&header, &state.kvmfr->cursor, sizeof(struct KVMFRCursor));
if (header.flags & KVMFR_CURSOR_FLAG_SHAPE &&
header.version != version)
@ -247,13 +249,13 @@ static int cursorThread(void * unused)
// check the data position is sane
const uint64_t dataSize = header.height * header.pitch;
if (header.dataPos + dataSize > state.shmSize)
if (header.dataPos + dataSize > state.shm.size)
{
DEBUG_ERROR("The guest sent an invalid mouse dataPos");
break;
}
const uint8_t * data = (const uint8_t *)state.shm + header.dataPos;
const uint8_t * data = (const uint8_t *)state.kvmfr + header.dataPos;
if (!state.lgr->on_mouse_shape(
state.lgrData,
cursorType,
@ -269,7 +271,7 @@ static int cursorThread(void * unused)
}
// now we have taken the mouse data, we can flag to the host we are ready
state.shm->cursor.flags = 0;
state.kvmfr->cursor.flags = 0;
bool showCursor = header.flags & KVMFR_CURSOR_FLAG_VISIBLE;
if (showCursor != state.cursorVisible || moved)
@ -300,7 +302,7 @@ static int frameThread(void * unused)
while(state.running)
{
// poll until we have a new frame
while(!(state.shm->frame.flags & KVMFR_FRAME_FLAG_UPDATE))
while(!(state.kvmfr->frame.flags & KVMFR_FRAME_FLAG_UPDATE))
{
if (!state.running)
break;
@ -311,11 +313,11 @@ static int frameThread(void * unused)
// we must take a copy of the header to prevent the contained
// arguments from being abused to overflow buffers.
memcpy(&header, &state.shm->frame, sizeof(struct KVMFRFrame));
memcpy(&header, &state.kvmfr->frame, sizeof(struct KVMFRFrame));
// tell the host to continue as the host buffers up to one frame
// we can be sure the data for this frame wont be touched
__sync_and_and_fetch(&state.shm->frame.flags, ~KVMFR_FRAME_FLAG_UPDATE);
__sync_and_and_fetch(&state.kvmfr->frame.flags, ~KVMFR_FRAME_FLAG_UPDATE);
// sainty check of the frame format
if (
@ -324,7 +326,7 @@ static int frameThread(void * unused)
header.height == 0 ||
header.pitch == 0 ||
header.dataPos == 0 ||
header.dataPos > state.shmSize ||
header.dataPos > state.shm.size ||
header.pitch < header.width
){
DEBUG_WARN("Bad header");
@ -370,7 +372,7 @@ static int frameThread(void * unused)
break;
// check the header's dataPos is sane
if (header.dataPos + dataSize > state.shmSize)
if (header.dataPos + dataSize > state.shm.size)
{
DEBUG_ERROR("The guest sent an invalid dataPos");
break;
@ -385,7 +387,7 @@ static int frameThread(void * unused)
SDL_SetWindowSize(state.window, header.width, header.height);
updatePositionInfo();
}
FrameBuffer frame = (FrameBuffer)((uint8_t *)state.shm + header.dataPos);
FrameBuffer frame = (FrameBuffer)((uint8_t *)state.kvmfr + header.dataPos);
if (!state.lgr->on_frame_event(state.lgrData, lgrFormat, frame))
{
@ -868,35 +870,6 @@ void int_handler(int signal)
}
}
static void * map_memory()
{
struct stat st;
if (stat(params.shmFile, &st) < 0)
{
DEBUG_ERROR("Failed to stat the shared memory file: %s", params.shmFile);
return NULL;
}
state.shmSize = params.shmSize ? params.shmSize : st.st_size;
state.shmFD = open(params.shmFile, O_RDWR, (mode_t)0600);
if (state.shmFD < 0)
{
DEBUG_ERROR("Failed to open the shared memory file: %s", params.shmFile);
return NULL;
}
void * map = mmap(0, state.shmSize, PROT_READ | PROT_WRITE, MAP_SHARED, state.shmFD, 0);
if (map == MAP_FAILED)
{
DEBUG_ERROR("Failed to map the shared memory file: %s", params.shmFile);
close(state.shmFD);
state.shmFD = 0;
return NULL;
}
return map;
}
static bool try_renderer(const int index, const LG_RendererParams lgrParams, Uint32 * sdlFlags)
{
const LG_Renderer *r = LG_Renderers[index];
@ -1062,13 +1035,14 @@ static int lg_run()
signal(SIGTERM, int_handler);
// try map the shared memory
state.shm = (struct KVMFRHeader *)map_memory();
if (!state.shm)
if (!ivshmemOpen(&state.shm))
{
DEBUG_ERROR("Failed to map memory");
return -1;
}
state.kvmfr = (struct KVMFRHeader*)state.shm.mem;
// try to connect to the spice server
if (params.useSpiceInput || params.useSpiceClipboard)
{
@ -1272,9 +1246,9 @@ static int lg_run()
// the host wakes up if it is waiting on an interrupt, the host will
// also send us the current mouse shape since we won't know it yet
DEBUG_INFO("Waiting for host to signal it's ready...");
__sync_or_and_fetch(&state.shm->flags, KVMFR_HEADER_FLAG_RESTART);
__sync_or_and_fetch(&state.kvmfr->flags, KVMFR_HEADER_FLAG_RESTART);
while(state.running && (state.shm->flags & KVMFR_HEADER_FLAG_RESTART))
while(state.running && (state.kvmfr->flags & KVMFR_HEADER_FLAG_RESTART))
SDL_WaitEventTimeout(NULL, 1000);
if (!state.running)
@ -1283,15 +1257,15 @@ static int lg_run()
DEBUG_INFO("Host ready, starting session");
// check the header's magic and version are valid
if (memcmp(state.shm->magic, KVMFR_HEADER_MAGIC, sizeof(KVMFR_HEADER_MAGIC)) != 0)
if (memcmp(state.kvmfr->magic, KVMFR_HEADER_MAGIC, sizeof(KVMFR_HEADER_MAGIC)) != 0)
{
DEBUG_ERROR("Invalid header magic, is the host running?");
return -1;
}
if (state.shm->version != KVMFR_HEADER_VERSION)
if (state.kvmfr->version != KVMFR_HEADER_VERSION)
{
DEBUG_ERROR("KVMFR version missmatch, expected %u but got %u", KVMFR_HEADER_VERSION, state.shm->version);
DEBUG_ERROR("KVMFR version missmatch, expected %u but got %u", KVMFR_HEADER_VERSION, state.kvmfr->version);
DEBUG_ERROR("This is not a bug, ensure you have the right version of looking-glass-host.exe on the guest");
return -1;
}
@ -1315,7 +1289,7 @@ static int lg_run()
if (closeAlert == NULL)
{
if (state.shm->flags & KVMFR_HEADER_FLAG_PAUSED)
if (state.kvmfr->flags & KVMFR_HEADER_FLAG_PAUSED)
{
if (state.lgr && params.showAlerts)
state.lgr->on_alert(
@ -1328,7 +1302,7 @@ static int lg_run()
}
else
{
if (!(state.shm->flags & KVMFR_HEADER_FLAG_PAUSED))
if (!(state.kvmfr->flags & KVMFR_HEADER_FLAG_PAUSED))
{
*closeAlert = true;
closeAlert = NULL;
@ -1387,11 +1361,7 @@ static void lg_shutdown()
if (cursor)
SDL_FreeCursor(cursor);
if (state.shm)
{
munmap(state.shm, state.shmSize);
close(state.shmFD);
}
ivshmemClose(&state.shm);
release_key_binds();
SDL_Quit();
@ -1406,6 +1376,7 @@ int main(int argc, char * argv[])
DEBUG_WARN("Failed to install the crash handler");
config_init();
ivshmemOptionsInit();
// early renderer setup for option registration
for(unsigned int i = 0; i < LG_RENDERER_COUNT; ++i)

7
client/src/main.h
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@ -23,6 +23,7 @@ Place, Suite 330, Boston, MA 02111-1307 USA
#include "interface/app.h"
#include "dynamic/renderers.h"
#include "dynamic/clipboards.h"
#include "common/ivshmem.h"
#include "spice/spice.h"
@ -54,9 +55,9 @@ struct AppState
struct ll * cbRequestList;
SDL_Window * window;
int shmFD;
struct KVMFRHeader * shm;
unsigned int shmSize;
struct IVSHMEM shm;
struct KVMFRHeader * kvmfr;
uint64_t frameTime;
uint64_t lastFrameTime;

2
common/src/platform/linux/ivshmem.c
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@ -210,7 +210,7 @@ bool ivshmemOpen(struct IVSHMEM * dev)
dev->opaque = info;
dev->size = devSize;
dev->mem = map;
return false;
return true;
}
void ivshmemClose(struct IVSHMEM * dev)