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annotate src/impl/pipe.h @ 178:0ef5c1d852fe

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author anatofuz
date Fri, 17 Jan 2020 15:25:05 +0900
parents 21e83548d738
children 7fc3c3da2159
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anatofuz <anatofuz@cr.ie.u-ryukyu.ac.jp>
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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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10 // interface field
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11 int n;
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12 char* addr;
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14 // private code gear
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15 __code piperead1(Impl* pipe, char* addr, int n, __code next(...));
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16 __code piperead2(Impl* pipe, char* addr, int n, __code next(...));
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17 } pipe;