def parent(self):
print('- wait for child with timeout:')
tstart = time()
s = sem_take(sid, 0, wait=2 * delay)
if time() - tstart < delay:
self.errmsg = 'timeout too quickly.'
return -2
return s
def parent(self):
print('- wait for child with timeout:')
tstart=time()
s = sem_take(sid, 0, wait= 2 * delay)
if time()-tstart < delay:
self.errmsg='timeout too quickly.'
return -2
return s
def parent(self):
print('- wait for child with timeout, and timeout:')
tstart = time()
s = sem_take(sid, 0, wait=delay)
if time() - tstart < delay:
self.errmsg = 'did not wait long enough'
return -2
self.errmsg = 'wait did not time out.'
return not s
def parent(self):
print('- wait for child with timeout, and timeout:')
tstart=time()
s = sem_take(sid, 0, wait=delay)
if time()-tstart < delay:
self.errmsg='did not wait long enough'
return -2
self.errmsg='wait did not time out.'
return not s
def parent(self):
print('- try take semaphore (available):')
sleep(delay)
s = sem_take(sid, 0, wait=0)
self.errmsg = 'sem was not available'
return s
def parent(self):
print('- wait for child x10 times:')
s = sem_take(sid, 0, count=10)
return s
def parent(self):
print('- wait for child forever:')
s = sem_take(sid, 0)
return s
def parent(self):
print('- try take semaphore (non-available):')
s = sem_take(sid, 0, wait=0)
self.errmsg='sem was available'
return not s
n = 32
stoopid=numpy.ones(n)
stoopid[n-1]=n
data = numpy.arange(n).reshape(stoopid)
#print data.shape
# create id
svid0 = 0x7dcb0000 | getpid()
svid1 = svid0+1
# create a pool with one shmaphore
shm_init(svid0,slots=1)
sem_init(svid1,nums=1)
if fork():
for i in range(num_):
shm_write(svid0,'slot0',data,publish=0) # shm id's are string ... doh
sem_take(svid1,0)
else:
time.sleep(1)
for i in range(num_):
d=shm_read(svid0,'slot0',0)
sem_give(svid1,0)
### print d
exit()
sem_cleanup(svid1)
shm_cleanup(svid0)
def parent(self):
print('- wait for child x10 times:')
s = sem_take(sid, 0, count=10)
return s
def parent(self):
print('- wait for child forever:')
s = sem_take(sid, 0)
return s
# tell it to go
sys.stderr.write('P: yorick may go.\n')
svipc.sem_give(my_semid,id=0)
# play 1
for i in range(3):
time.sleep(1)
sys.stderr.write('P: sem give %d.\n' % i)
svipc.sem_give(key=my_semid,id=0)
# play 2
sys.stderr.write('P: wait synch from yorick\n')
svipc.sem_take(my_semid,1)
sys.stderr.write('P: going now\n')
for i in range(3):
msg = svipc.shm_read(my_shmid,id="pingpong",subscribe=-1.0)
time.sleep(1)
msg[i]=0
svipc.shm_write(my_shmid,"pingpong",data=msg,publish=1)
# play 3
sys.stderr.write('P: wait synch from yorick\n')
svipc.sem_take(my_semid,1)
sys.stderr.write('P: going now\n')
# tell it to go
sys.stderr.write('P: yorick may go.\n')
svipc.sem_give(my_semid, id=0)
# play 1
for i in range(3):
time.sleep(1)
sys.stderr.write('P: sem give %d.\n' % i)
svipc.sem_give(key=my_semid, id=0)
# play 2
sys.stderr.write('P: wait synch from yorick\n')
svipc.sem_take(my_semid, 1)
sys.stderr.write('P: going now\n')
for i in range(3):
msg = svipc.shm_read(my_shmid, id="pingpong", subscribe=-1.0)
time.sleep(1)
msg[i] = 0
svipc.shm_write(my_shmid, "pingpong", data=msg, publish=1)
# play 3
sys.stderr.write('P: wait synch from yorick\n')
svipc.sem_take(my_semid, 1)
sys.stderr.write('P: going now\n')
def parent(self):
print('- try take semaphore (non-available):')
s = sem_take(sid, 0, wait=0)
self.errmsg = 'sem was available'
return not s
def parent(self):
print('- try take semaphore (available):')
sleep(delay)
s = sem_take(sid, 0, wait=0)
self.errmsg='sem was not available'
return s
#let yorick wait .. time.sleep(1) # tell it to go svipc.sem_give(my_semid,id=0) # play 1 for i in range(3): time.sleep(1) svipc.sem_give(key=my_semid,id=0) # play 2 svipc.sem_take(my_semid,0) for i in range(3): msg = svipc.shm_read(my_shmid,id="pingpong",subscribe=-1.0) time.sleep(1) msg[i]=0 svipc.shm_write(my_shmid,"pingpong",data=msg,publish=1) # play 3 for i in range(3): msg = svipc.msq_rcv(my_msqid,mtype=1234) msg[i]=0 svipc.msq_snd(my_msqid,mtype=5678,data=msg)
n = 32
stoopid = numpy.ones(n)
stoopid[n - 1] = n
data = numpy.arange(n).reshape(stoopid)
#print data.shape
# create id
svid0 = 0x7dcb0000 | getpid()
svid1 = svid0 + 1
# create a pool with one shmaphore
shm_init(svid0, slots=1)
sem_init(svid1, nums=1)
if fork():
for i in range(num_):
shm_write(svid0, 'slot0', data,
publish=0) # shm id's are string ... doh
sem_take(svid1, 0)
else:
time.sleep(1)
for i in range(num_):
d = shm_read(svid0, 'slot0', 0)
sem_give(svid1, 0)
### print d
exit()
sem_cleanup(svid1)
shm_cleanup(svid0)
