Mercurial > hg > Members > tobaru > CbC_xv6
changeset 162:e47eaee4e8c1
struct pipe is not generated in context.h
| author | tobaru |
|---|---|
| date | Sun, 22 Dec 2019 19:41:35 +0900 |
| parents | c8965bb0f84c |
| children | 620a6abe2259 |
| files | src/file.cbc src/interface/pipe.dg |
| diffstat | 2 files changed, 12 insertions(+), 0 deletions(-) [+] |
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--- a/src/file.cbc Sun Dec 22 19:14:07 2019 +0900 +++ b/src/file.cbc Sun Dec 22 19:41:35 2019 +0900 @@ -113,6 +113,8 @@ goto next(r); } +extern __code cbc_piperead(struct pipe *p, char *addr, int n, __code (*next)(int ret)); + __ncode cbc_fileread (struct file *f, char *addr, int n, __code (*next)(int ret)) { if (f->readable == 0) {
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/src/interface/pipe.dg Sun Dec 22 19:41:35 2019 +0900 @@ -0,0 +1,10 @@ +#define PIPESIZE 512 + +typedef struct pipe <Impl> { + struct spinlock lock; + char data[PIPESIZE]; + uint nread; // number of bytes read + uint nwrite; // number of bytes written + int readopen; // read fd is still open + int writeopen; // write fd is still open +} pipe;