def pull(self):
"""If semaphore was timed out (i.e. nothing was written to the ringbuffer) in mstimeout milliseconds, returns: None, None. Otherwise returns the index of the shmem segment and the size of data written.
"""
got = self.core.clientPull(self.index_p, self.isize_p)
index = core.intp_value(
self.index_p)
isize = core.intp_value(self.isize_p)
# if (self.verbose):
self.logger.debug("current index, size= %s %s", index, isize)
if (got):
return index, isize
else:
return None, None
def pullFrameThread(self):
"""Use with multithreading
"""
self.rgb_meta = core.RGB24Meta()
got = self.core.clientPullFrameThread(self.index_p, self.rgb_meta)
index = core.intp_value(self.index_p)
# if (self.verbose):
self.logger.debug("current index %s ", index) # ShmemRGBClient.metaToString(self.rgb_meta))
if (got):
return index, self.rgb_meta
else:
return None, None
def pullFrameThread(self):
"""Use with multithreading
"""
self.rgb_meta = core.RGB24Meta()
got = self.core.clientPullFrameThread(self.index_p, self.rgb_meta)
index = core.intp_value(self.index_p)
if (self.verbose):
print(self.pre, "current index, info", index, ShmemRGBClient.metaToString(rgb_meta))
if (got):
return index, self.rgb_meta
else:
return None, None
def pullFrame(self):
"""If semaphore was timed out (i.e. nothing was written to the ringbuffer) in mstimeout milliseconds, returns: None, None. Otherwise returns the index of the shmem segment and the size of data written.
"""
self.rgb_meta = core.RGB24Meta()
got = self.core.clientPullFrame(self.index_p, self.rgb_meta)
index = core.intp_value(self.index_p)
if (self.verbose):
print(self.pre, "current index, info", index, ShmemRGBClient.metaToString(rgb_meta))
if (got):
return index, self.rgb_meta
else:
return None, None