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[client] implemented the new ivshmem interrupt sync system

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This commit is contained in:
Geoffrey McRae
2017-10-20 01:03:39 +11:00
parent 3a7bff77f2
commit b871d6d8d0
4 changed files with 119 additions and 11 deletions
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42
client/main.c
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@@ -211,7 +211,6 @@ void drawFunc_YUV420P(CompFunc compFunc, SDL_Texture * texture, uint8_t * dst, c
int renderThread(void * unused)
{
bool startup = true;
struct KVMGFXHeader format;
SDL_Texture *texture = NULL;
uint8_t *pixels = (uint8_t*)(state.shm + 1);
@@ -254,16 +253,40 @@ int renderThread(void * unused)
if (memcmp(state.shm->magic, KVMGFX_HEADER_MAGIC, sizeof(KVMGFX_HEADER_MAGIC)) != 0)
continue;
// if the frame count hasn't changed, we don't do anything
if (!startup && format.frames == state.shm->frames)
{
if (!state.running)
break;
usleep(100);
if (state.shm->version != 2)
continue;
bool ready = false;
bool error = false;
while(state.running && !ready && !error)
{
// kick the guest and wait for a frame
ivshmem_kick_irq(state.shm->guestID, 0);
switch(ivshmem_wait_irq(0))
{
case IVSHMEM_WAIT_RESULT_OK:
ready = true;
break;
case IVSHMEM_WAIT_RESULT_TIMEOUT:
ready = false;
break;
case IVSHMEM_WAIT_RESULT_ERROR:
error = true;
break;
}
}
startup = false;
if (error)
{
DEBUG_ERROR("error during wait for host");
break;
}
// continue;
// }
// startup = false;
// if the format is invalid or it has changed
if (format.frameType == FRAME_TYPE_INVALID || !areFormatsSame(format, *state.shm))
@@ -507,6 +530,7 @@ int main(int argc, char * argv[])
DEBUG_ERROR("Failed to map memory");
break;
}
state.shm->hostID = ivshmem_get_id();
if (!spice_connect("127.0.0.1", 5900, ""))
{