def dbrDirectory(dbr_hdl, match_template, group, count, size, ret_size):
tbuf = createBuf('char[]', size)
retval = libdatabroker.dbrDirectory(dbr_hdl, match_template, group, count,
ffi.from_buffer(tbuf),
ffi.cast('const size_t', size),
ret_size)
result_buffer = (tbuf[0:ret_size[0]].split('\n'))
return retval, result_buffer
def getA(dbr_hdl, tuple_name, match_template, group, buffer_size=None):
out_size = ffi.new('int64_t*')
if buffer_size is None :
buffer_size=[128]
out_size[0] = buffer_size[0]
out_buffer = createBuf('char[]', out_size[0])
tag = libdatabroker.dbrGetA(dbr_hdl, ffi.from_buffer(out_buffer), out_size, tuple_name.encode(), match_template.encode(), group.encode())
buffer_size[0] = out_size[0]
return tag, out_buffer # pickle.loads(out_buffer[:])
def directory(dbr_hdl, match_template, group, count, size):
tbuf = createBuf('char[]', size)
rsize = ffi.new('int64_t*')
retval = libdatabroker.dbrDirectory(dbr_hdl, match_template.encode(),
group.encode(), count,
ffi.from_buffer(tbuf),
ffi.cast('const size_t', size), rsize)
result_buffer = (tbuf[0:rsize[0]].decode().split('\n'))
return result_buffer, rsize[0], retval
def readA(dbr_hdl, tuple_name, match_template, group, flag=DBR_FLAGS_NONE, buffer_size=None):
out_size = ffi.new('int64_t*')
if buffer_size is None :
buffer_size=[128]
out_size[0] = buffer_size[0]
out_buffer = createBuf('char[]', out_size[0])
tag = libdatabroker.dbrReadA(dbr_hdl, ffi.from_buffer(out_buffer), out_size, tuple_name.encode(), match_template.encode(), group.encode(), flags)
buffer_size[0] = out_size[0]
return tag, out_buffer
def get(dbr_hdl, tuple_name, match_template, group, flag, buffer_size=None):
out_size = ffi.new('int64_t*')
if buffer_size is None :
buffer_size=[128]
out_size[0] = buffer_size[0]
out_buffer = createBuf('char[]', out_size[0])
retval = libdatabroker.dbrGet(dbr_hdl, ffi.from_buffer(out_buffer), out_size, tuple_name.encode(), match_template.encode(), group.encode(), flag)
if retval != 0:
return None, retval
buffer_size[0] = out_size[0]
result = None
try:
result = pickle.loads(out_buffer[:])
except:
result = out_buffer[:].decode()
return result, retval
def iterator(dbr_hdl, iterator, group, match_template):
out_buffer = createBuf('char[]', libdatabroker.DBR_MAX_KEY_LEN)
it = libdatabroker.dbrIterator(dbr_hdl, iterator, group.encode(), match_template.encode(), ffi.from_buffer(out_buffer))
key = None
try:
key = out_buffer[:].decode()
except:
key = None
return key, it
def dbrGetA(dbr_hdl, out_buffer, buffer_size, tuple_name, match_template,
group):
tag = libdatabroker.dbrGetA(dbr_hdl, ffi.from_buffer(out_buffer),
buffer_size, tuple_name, match_template, group)
return tag
def dbrGet(dbr_hdl, out_buffer, buffer_size, tuple_name, match_template, group,
flag):
retval = libdatabroker.dbrGet(dbr_hdl, ffi.from_buffer(out_buffer),
buffer_size, tuple_name, match_template,
group, flag)
return retval
