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Viewing changes to libc-top-half/musl/src/thread/pthread_mutex_trylock.c

  • Committer: mmach
  • Date: 2023-09-12 15:53:36 UTC
  • Revision ID: netbit73@gmail.com-20230912155336-s1r5z5xnszz99zzo
0.0~git20230113.4362b18

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Lines of Context:
libc-top-half/musl/src/thread/pthread_mutex_trylock.c
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        if (type & 128) {
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                if (!self->robust_list.off) {
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                        self->robust_list.off = (char*)&m->_m_lock-(char *)&m->_m_next;
 
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#ifdef __wasilibc_unmodified_upstream
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                        __syscall(SYS_set_robust_list, &self->robust_list, 3*sizeof(long));
 
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#endif
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                }
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                if (m->_m_waiters) tid |= 0x80000000;
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                self->robust_list.pending = &m->_m_next;
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success:
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        if ((type&8) && m->_m_waiters) {
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                int priv = (type & 128) ^ 128;
 
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#ifdef __wasilibc_unmodified_upstream
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                __syscall(SYS_futex, &m->_m_lock, FUTEX_UNLOCK_PI|priv);
 
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#endif
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                self->robust_list.pending = 0;
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                return (type&4) ? ENOTRECOVERABLE : EBUSY;
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        }