Revision e3e87df4 iov.h

b/iov.h
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 * `offset' bytes in the beginning of iovec buffer are skipped and
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 * next `bytes' bytes are used, which must be within data of iovec.
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 *
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 *   r = iov_send(sockfd, iov, offset, bytes);
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 *   r = iov_send_recv(sockfd, iov, offset, bytes, true);
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 *
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 * is logically equivalent to
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 *
......
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 *   r = send(sockfd, buf, bytes, 0);
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 *   free(buf);
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 */
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ssize_t iov_recv(int sockfd, struct iovec *iov, size_t offset, size_t bytes);
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ssize_t iov_send(int sockfd, struct iovec *iov, size_t offset, size_t bytes);
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ssize_t iov_send_recv(int sockfd, struct iovec *iov,
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                      size_t offset, size_t bytes, bool do_send);
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#define iov_recv(sockfd, iov, offset, bytes) \
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  iov_send_recv(sockfd, iov, offset, bytes, false)
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#define iov_send(sockfd, iov, offset, bytes) \
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  iov_send_recv(sockfd, iov, offset, bytes, true)
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/**


  		





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 * Produce a text hexdump of iovec `iov' with `iov_cnt' number of elements


  		












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