mirror of
https://github.com/fluencelabs/musl
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19 lines
342 B
C
19 lines
342 B
C
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#include "stdio_impl.h"
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#include "pthread_impl.h"
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int ftrylockfile(FILE *f)
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{
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libc.lockfile = __lockfile;
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if (f->owner && f->owner == pthread_self()->tid) {
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if (f->lockcount == INT_MAX)
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return -1;
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f->lockcount++;
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return 0;
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}
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if (a_swap(&f->lock, 1))
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return -1;
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f->owner = pthread_self()->tid;
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f->lockcount = 1;
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return 0;
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}
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