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v0.5.1
v0.5.1
https://github.com/python/cpython
Revision d5c2a6210026834eb3cb7165e470d2cbc3065db8 authored by Yury Selivanov on 17 December 2015, 00:31:17 UTC, committed by Yury Selivanov on 17 December 2015, 00:31:17 UTC
getaddrinfo takes an exclusive lock on some platforms, causing clients to queue up waiting for the lock if many names are being resolved concurrently. Users may want to handle name resolution in their own code, for the sake of caching, using an alternate resolver, or to measure DNS duration separately from connection duration. Skip getaddrinfo if the "host" passed into create_connection is already resolved. See https://github.com/python/asyncio/pull/302 for details. Patch by A. Jesse Jiryu Davis.
1 parent 8c084eb
Tip revision: d5c2a6210026834eb3cb7165e470d2cbc3065db8 authored by Yury Selivanov on 17 December 2015, 00:31:17 UTC
asyncio: Skip getaddrinfo if host is already resolved.
asyncio: Skip getaddrinfo if host is already resolved.
Tip revision: d5c2a62
bitset.h
#ifndef Py_BITSET_H
#define Py_BITSET_H
#ifdef __cplusplus
extern "C" {
#endif
/* Bitset interface */
#define BYTE char
typedef BYTE *bitset;
bitset newbitset(int nbits);
void delbitset(bitset bs);
#define testbit(ss, ibit) (((ss)[BIT2BYTE(ibit)] & BIT2MASK(ibit)) != 0)
int addbit(bitset bs, int ibit); /* Returns 0 if already set */
int samebitset(bitset bs1, bitset bs2, int nbits);
void mergebitset(bitset bs1, bitset bs2, int nbits);
#define BITSPERBYTE (8*sizeof(BYTE))
#define NBYTES(nbits) (((nbits) + BITSPERBYTE - 1) / BITSPERBYTE)
#define BIT2BYTE(ibit) ((ibit) / BITSPERBYTE)
#define BIT2SHIFT(ibit) ((ibit) % BITSPERBYTE)
#define BIT2MASK(ibit) (1 << BIT2SHIFT(ibit))
#define BYTE2BIT(ibyte) ((ibyte) * BITSPERBYTE)
#ifdef __cplusplus
}
#endif
#endif /* !Py_BITSET_H */
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