def get_dayline_by_fid(str_fid = 'sh000001', restrictSize = 0):
str_fid = str_fid.replace('.day','')
str_tdx_dayline_format = "iiiiifii"
size_of_tdx_dayline = 32 #32 bytes per struct
if str_fid[0:2] == 'sh':
spath = tdxpath + sh_path
else:
spath = tdxpath + sz_path
filename = spath + str_fid + ".day"
f = open(filename, 'rb')
if restrictSize != 0:
fsize = os.path.getsize(filename)
sr = fsize - 32 * restrictSize
if sr < 0: sr = 0
f.seek(sr)
#for i in range(0,9999):
dayline = []
while 1:
rd = f.read(32)
if not rd: break
#print i, len(rd)
st = struct.unpack(str_tdx_dayline_format, rd)
#print st
q = libqda_struct.fdaydata()
q.pars( parse_time(st[0]),
int(st[1]) / 100.,
int(st[2]) / 100.,
int(st[3]) / 100.,
int(st[4]) / 100.,
float(st[5]),
int(st[6]),
int(st[7]) )
dayline.append(q)
return dayline
f.close()
def get_dayline_by_fid_america(str_fid = '74#AA-b', seekPoint = 0, readLength = 0):
str_fid = str_fid.replace('.day','')
str_tdx_dayline_format_america = "iffffiii"
size_of_tdx_dayline = 32
spath = tdxpath + america_path
f = open(spath + str_fid + ".day", 'rb')
#for i in range(0,9999):
dayline = []
#skip is ok
f.seek(seekPoint)
rlength = 0
while 1:
rd = f.read(32)
if not rd: break
#print i, len(rd)
st = struct.unpack(str_tdx_dayline_format_america, rd)
#print st
q = libqda_struct.fdaydata()
q.pars( parse_time(st[0]),
st[1],st[2],st[3],st[4],
int(st[5]),
int(st[6]),
int(st[7]) )
dayline.append(q)
rlength+=1;
if rlength == readLength: break
return dayline
f.close()
def read_3(): fr = fp.read(size_of_fday); ftime, op, hig, low, cl, vol, amount, dealcount = struct.unpack(sfday, fr); mdata = libqda_struct.fdaydata(); mdata.pars(ftime, op, hig, low, cl, vol, amount, dealcount); return mdata;
