plan9port/src/lib9/fmtlock2.c

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#include <u.h>
#include <libc.h>
static RWLock fmtlock;
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void
__fmtrlock(void)
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{
rlock(&fmtlock);
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}
void
__fmtrunlock(void)
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{
runlock(&fmtlock);
}
void
__fmtwlock(void)
{
wlock(&fmtlock);
}
void
__fmtwunlock(void)
{
wunlock(&fmtlock);
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}