#!/usr/bin/python3
-import sys, os, getopt, threading, logging, time, locale, collections
-import ashd.proto, ashd.util, ashd.perf
+import sys, os, getopt, socket, logging, time, locale, collections, signal
+import ashd.util, ashd.serve, ashd.htlib
try:
import pdm.srv
except:
pdm = None
def usage(out):
- out.write("usage: ashd-wsgi3 [-hAL] [-m PDM-SPEC] [-p MODPATH] [-l REQLIMIT] HANDLER-MODULE [ARGS...]\n")
+ out.write("usage: ashd-wsgi3 [-hAL] [-m PDM-SPEC] [-p MODPATH] [-t REQUEST-HANDLER[:PAR[=VAL](,PAR[=VAL])...]] HANDLER-MODULE [ARGS...]\n")
-reqlimit = 0
+hspec = "free", {}
modwsgi_compat = False
setlog = True
-opts, args = getopt.getopt(sys.argv[1:], "+hALp:l:m:")
+opts, args = getopt.getopt(sys.argv[1:], "+hALp:t:l:m:")
for o, a in opts:
if o == "-h":
usage(sys.stdout)
elif o == "-A":
modwsgi_compat = True
elif o == "-l":
- reqlimit = int(a)
+ hspec = "free", {"max": a, "abort": "10"}
+ elif o == "-t":
+ hspec = ashd.serve.parsehspec(a)
elif o == "-m":
if pdm is not None:
pdm.srv.listen(a)
sys.exit(1)
handler = handlermod.application
-class closed(IOError):
- def __init__(self):
- super().__init__("The client has closed the connection.")
-
cwd = os.getcwd()
def absolutify(path):
if path[0] != '/':
buf.append(c)
return buf
-def dowsgi(req):
+def mkenv(req):
env = {}
env["wsgi.version"] = 1, 0
for key, val in req.headers:
env["wsgi.multithread"] = True
env["wsgi.multiprocess"] = False
env["wsgi.run_once"] = False
+ return env
- resp = []
- respsent = []
-
- def recode(thing):
- if isinstance(thing, collections.ByteString):
- return thing
- else:
- return str(thing).encode("latin-1")
-
- def flushreq():
- if not respsent:
- if not resp:
- raise Exception("Trying to write data before starting response.")
- status, headers = resp
- respsent[:] = [True]
- buf = bytearray()
- buf += b"HTTP/1.1 " + recode(status) + b"\n"
- for nm, val in headers:
- buf += recode(nm) + b": " + recode(val) + b"\n"
- buf += b"\n"
- try:
- req.sk.write(buf)
- except IOError:
- raise closed()
-
- def write(data):
- if not data:
- return
- flushreq()
+def recode(thing):
+ if isinstance(thing, collections.ByteString):
+ return thing
+ else:
+ return str(thing).encode("latin-1")
+
+class request(ashd.serve.wsgirequest):
+ def __init__(self, *, bkreq, **kw):
+ super().__init__(**kw)
+ self.bkreq = bkreq.dup()
+ self.sendrights = None
+
+ def mkenv(self):
+ return mkenv(self.bkreq)
+
+ def handlewsgi(self, env, startreq):
+ return handler(env, startreq)
+
+ def fileno(self):
+ return self.bkreq.bsk.fileno()
+
+ def writehead(self, status, headers):
+ headers = list(headers)
+ for header in headers:
+ nm, val = header
+ if nm.lower() == "x-ash-send-rights":
+ self.sendrights = val
+ headers.remove(header)
+ break
+ w = self.buffer.extend
+ w(b"HTTP/1.1 " + recode(status) + b"\n")
+ for nm, val in headers:
+ w(recode(nm) + b": " + recode(val) + b"\n")
+ w(b"\n")
+
+ def flush(self):
try:
- req.sk.write(data)
- req.sk.flush()
- except IOError:
- raise closed()
-
- def startreq(status, headers, exc_info = None):
- if resp:
- if exc_info: # Interesting, this...
- try:
- if respsent:
- raise exc_info[1]
- finally:
- exc_info = None # CPython GC bug?
+ if self.sendrights is not None:
+ ret = ashd.htlib.sendfd(self.bkreq.bsk.fileno(), self.sendrights.fileno(), self.buffer)
+ self.sendrights.close()
+ self.sendrights = None
else:
- raise Exception("Can only start responding once.")
- resp[:] = status, headers
- return write
+ ret = self.bkreq.bsk.send(self.buffer, socket.MSG_DONTWAIT)
+ self.buffer[:ret] = b""
+ except IOError:
+ raise ashd.serve.closed()
- with ashd.perf.request(env) as reqevent:
- try:
- respiter = handler(env, startreq)
- try:
- for data in respiter:
- write(data)
- if resp:
- flushreq()
- finally:
- if hasattr(respiter, "close"):
- respiter.close()
- except closed:
- pass
- if resp:
- reqevent.response(resp)
-
-flightlock = threading.Condition()
-inflight = 0
-
-class reqthread(threading.Thread):
- def __init__(self, req):
- super().__init__(name = "Request handler")
- self.req = req.dup()
-
- def run(self):
- global inflight
+ def close(self):
try:
- with flightlock:
- if reqlimit != 0:
- start = time.time()
- while inflight >= reqlimit:
- flightlock.wait(10)
- if time.time() - start > 10:
- os.abort()
- inflight += 1
- try:
- dowsgi(self.req)
- finally:
- with flightlock:
- inflight -= 1
- flightlock.notify()
- except:
- log.error("exception occurred in handler thread", exc_info=True)
+ self.bkreq.close()
finally:
- self.req.close()
- sys.stderr.flush()
-
+ if self.sendrights is not None:
+ self.sendrights.close()
+
def handle(req):
- reqthread(req).start()
+ reqhandler.handle(request(bkreq=req, handler=reqhandler))
-ashd.util.serveloop(handle)
+if hspec[0] not in ashd.serve.names:
+ sys.stderr.write("ashd-wsgi3: no such request handler: %s\n" % hspec[0])
+ sys.exit(1)
+hclass = ashd.serve.names[hspec[0]]
+try:
+ hargs = hclass.parseargs(**hspec[1])
+except ValueError as exc:
+ sys.stderr.write("ashd-wsgi3: %s\n" % exc)
+ sys.exit(1)
+
+def sigterm(sig, frame):
+ socket.fromfd(0, socket.AF_UNIX, socket.SOCK_SEQPACKET).shutdown(socket.SHUT_RDWR) # :P
+for signum in [signal.SIGINT, signal.SIGTERM]:
+ signal.signal(signum, sigterm)
+
+reqhandler = hclass(**hargs)
+try:
+ ashd.util.serveloop(handle)
+finally:
+ reqhandler.close()
Dolda2000 GitWeb / ashd.git / blobdiff