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 */
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 */
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#ifndef KERN_SYNCH_H_
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#ifndef KERN_SYNCH_H_
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#define KERN_SYNCH_H_
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#define KERN_SYNCH_H_
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#define SYNCH_NO_TIMEOUT    0   /**< Request with no timeout. */
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/** Request with no timeout. */
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#define SYNCH_NO_TIMEOUT    0
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/** No flags specified. */
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#define SYNCH_FLAGS_NONE        0   /**< No flags specified. */
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#define SYNCH_FLAGS_NONE        0
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/** Non-blocking operation request. */
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#define SYNCH_FLAGS_NON_BLOCKING    (1<<0)  /**< Non-blocking operation request. */
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#define SYNCH_FLAGS_NON_BLOCKING    (1 << 0)
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/** Interruptible operation. */
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#define SYNCH_FLAGS_INTERRUPTIBLE   (1<<1)  /**< Interruptible operation. */
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#define SYNCH_FLAGS_INTERRUPTIBLE   (1 << 1)
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#define ESYNCH_WOULD_BLOCK  1   /**< Could not satisfy the request without going to sleep. */
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/** Could not satisfy the request without going to sleep. */
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#define ESYNCH_WOULD_BLOCK  1
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/** Timeout occurred. */
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#define ESYNCH_TIMEOUT      2   /**< Timeout occurred. */
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#define ESYNCH_TIMEOUT      2
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#define ESYNCH_INTERRUPTED  4   /**< Sleep was interrupted. */
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/** Sleep was interrupted. */
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#define ESYNCH_INTERRUPTED  4
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#define ESYNCH_OK_ATOMIC    8   /**< Operation succeeded without sleeping. */
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/** Operation succeeded without sleeping. */
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#define ESYNCH_OK_ATOMIC    8
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#define ESYNCH_OK_BLOCKED   16  /**< Operation succeeded and did sleep. */
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/** Operation succeeded and did sleep. */
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#define ESYNCH_OK_BLOCKED   16
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#define SYNCH_FAILED(rc) \
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#define SYNCH_FAILED(rc)    ((rc) & (ESYNCH_WOULD_BLOCK | ESYNCH_TIMEOUT | ESYNCH_INTERRUPTED))
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    ((rc) & (ESYNCH_WOULD_BLOCK | ESYNCH_TIMEOUT | ESYNCH_INTERRUPTED))
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#define SYNCH_OK(rc) \
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#define SYNCH_OK(rc)        ((rc) & (ESYNCH_OK_ATOMIC | ESYNCH_OK_BLOCKED))
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    ((rc) & (ESYNCH_OK_ATOMIC | ESYNCH_OK_BLOCKED))
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#endif
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#endif
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/** @}
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/** @}
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 */
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 */