Mercurial > hg > CbC > CbC_xv6

annotate src/impl/pipe.h @ 164:9c501dca25e3

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add file_impl_pipe.cbc
author anatofuz <anatofuz@cr.ie.u-ryukyu.ac.jp>
date Wed, 15 Jan 2020 18:53:32 +0900
parents 06bf68d3b83b
children 21e83548d738
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161
anatofuz <anatofuz@cr.ie.u-ryukyu.ac.jp>
parents: 160
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1 typedef struct pipe<Impl, Isa> impl file {
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2 #define PIPESIZE 512
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3 struct spinlock lock;
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4 char data[PIPESIZE];
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5 uint nread; // number of bytes read
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6 uint nwrite; // number of bytes written
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7 int readopen; // read fd is still open
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8 int writeopen; // write fd is still open
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9 } pipe;