Rich Felker
5345c9b884
this is analogous commit fffc5cda10
which fixed the corresponding issue for mutexes.
the robust list can't be used here because the locks do not share a
common layout with mutexes. at some point it may make sense to simply
incorporate a mutex object into the FILE structure and use it, but
that would be a much more invasive change, and it doesn't mesh well
with the current design that uses a simpler code path for internal
locking and pulls in the recursive-mutex-like code when the flockfile
API is used explicitly.
16 lines
240 B
C
16 lines
240 B
C
#include "stdio_impl.h"
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#include "pthread_impl.h"
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void __unlist_locked_file(FILE *);
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void funlockfile(FILE *f)
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{
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if (f->lockcount == 1) {
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__unlist_locked_file(f);
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f->lockcount = 0;
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__unlockfile(f);
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} else {
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f->lockcount--;
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}
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}
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