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sendfile: handle eagain

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ed 2021-12-17 00:04:19 +01:00
parent 9eecc9e19a
commit dd28de1796
2 changed files with 11 additions and 4 deletions
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2
copyparty/httpcli.py
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@ -1515,7 +1515,7 @@ class HttpCli(object):
with open_func(*open_args) as f:
sendfun = sendfile_kern if use_sendfile else sendfile_py
remains = sendfun(
lower, upper, f, self.s, self.args.s_wr_sz, self.args.s_wr_slp
self.log, lower, upper, f, self.s, self.args.s_wr_sz, self.args.s_wr_slp
)
if remains > 0:

13
copyparty/util.py
View file

@ -1177,7 +1177,7 @@ def hashcopy(fin, fout):
return tlen, hashobj.hexdigest(), digest_b64
def sendfile_py(lower, upper, f, s, bufsz, slp):
def sendfile_py(log, lower, upper, f, s, bufsz, slp):
remains = upper - lower
f.seek(lower)
while remains > 0:
@ -1197,17 +1197,24 @@ def sendfile_py(lower, upper, f, s, bufsz, slp):
return 0
def sendfile_kern(lower, upper, f, s, bufsz, slp):
def sendfile_kern(log, lower, upper, f, s, bufsz, slp):
out_fd = s.fileno()
in_fd = f.fileno()
ofs = lower
stuck = None
while ofs < upper:
stuck = stuck or time.time()
try:
req = min(2 ** 30, upper - ofs)
select.select([], [out_fd], [], 10)
n = os.sendfile(out_fd, in_fd, ofs, req)
stuck = None
except Exception as ex:
# print("sendfile: " + repr(ex))
d = time.time() - stuck
log("sendfile stuck for {:.3f} sec: {!r}".format(d, ex))
if d < 3600 and ex.errno == 11: # eagain
continue
n = 0
if n <= 0: