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 */
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 */
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#ifndef __SYNCH_H__
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#ifndef __SYNCH_H__
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#define __SYNCH_H__
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#define __SYNCH_H__
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#define SYNCH_NO_TIMEOUT    0
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#define SYNCH_NO_TIMEOUT    0   /**< No timeout is request. */
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#define SYNCH_BLOCKING      0
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#define SYNCH_BLOCKING      0   /**< Blocking operation request. */
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#define SYNCH_NON_BLOCKING  1
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#define SYNCH_NON_BLOCKING  1   /**< Non-blocking operation request. */
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#define ESYNCH_WOULD_BLOCK  1
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#define ESYNCH_WOULD_BLOCK  1   /**< Could not satisfy the request without going to sleep. */
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#define ESYNCH_TIMEOUT      2
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#define ESYNCH_TIMEOUT      2   /**< Timeout occurred. */
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#define ESYNCH_OK_ATOMIC    4
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#define ESYNCH_OK_ATOMIC    4   /**< Operation succeeded without sleeping. */
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#define ESYNCH_OK_BLOCKED   8
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#define ESYNCH_OK_BLOCKED   8   /**< Operation succeeded and did sleep. */
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#define SYNCH_FAILED(rc)    ((rc) & (ESYNCH_WOULD_BLOCK | ESYNCH_TIMEOUT))
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#define SYNCH_FAILED(rc)    ((rc) & (ESYNCH_WOULD_BLOCK | ESYNCH_TIMEOUT))
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#define SYNCH_OK(rc)        ((rc) & (ESYNCH_OK_ATOMIC | ESYNCH_OK_BLOCKED))
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#define SYNCH_OK(rc)        ((rc) & (ESYNCH_OK_ATOMIC | ESYNCH_OK_BLOCKED))
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#endif
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#endif