Message134918
kevent does not accept all legitimate parameters, such as KQ_NOTE_EXIT.
For example:
>> from select import *
>> kevent(0, KQ_FILTER_PROC, KQ_EV_ADD | KQ_EV_ENABLE, KQ_NOTE_EXIT)
OverflowError: signed integer is greater than maximum
While the following C code compiles (under -Wall -pedantic) without error, or warning:
"""
#include <sys/types.h>
#include <sys/event.h>
#include <sys/time.h>
int main(int argc, char **argv) {
struct kevent ke;
EV_SET(&ke, 0, EVFILT_PROC, EV_ADD | EV_ENABLE, NOTE_EXIT, 0, 0);
return (0);
}
"""
Looking at the Modules/selectmodule.c file it is clear that the fields "flags" and "fflags" are defined as T_USHORT and T_UINT however the flags passed to PyArg_ParseTupleAndKeywords are 'h' and 'i' respectively (implying signed numbers).
A workaround exists where values X > (2**31 - 1) are passed as (X - 2**32). Also the attached patch fixes the error. |
|
Date |
User |
Action |
Args |
2011-05-01 18:26:34 | DragonSA | set | recipients:
+ DragonSA |
2011-05-01 18:26:34 | DragonSA | set | messageid: <1304274394.46.0.0260368215252.issue11973@psf.upfronthosting.co.za> |
2011-05-01 18:26:33 | DragonSA | link | issue11973 messages |
2011-05-01 18:26:33 | DragonSA | create | |
|