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/ IRIX Base Documentation 2002 November / SGI IRIX Base Documentation 2002 November.iso / usr / share / catman / p_man / catD / MUTEX_TRYLOCK.z / MUTEX_TRYLOCK
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Text File  |  2002-10-03  |  4.0 KB  |  66 lines
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  4. MMMMUUUUTTTTEEEEXXXX____TTTTRRRRYYYYLLLLOOOOCCCCKKKK((((DDDD3333))))                                            MMMMUUUUTTTTEEEEXXXX____TTTTRRRRYYYYLLLLOOOOCCCCKKKK((((DDDD3333))))
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  8. NNNNAAAAMMMMEEEE
  9.      _MMMM_UUUU_TTTT_EEEE_XXXX______TTTT_RRRR_YYYY_LLLL_OOOO_CCCC_KKKK - try to acquire a sleep lock
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  11. SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
  12.      _####_iiii_nnnn_cccc_llll_uuuu_dddd_eeee _<<<<_ssss_yyyy_ssss_////_tttt_yyyy_pppp_eeee_ssss_...._hhhh_>>>>
  13.      _####_iiii_nnnn_cccc_llll_uuuu_dddd_eeee _<<<<_ssss_yyyy_ssss_////_kkkk_ssss_yyyy_nnnn_cccc_hhhh_...._hhhh_>>>>
  14.      _####_iiii_nnnn_cccc_llll_uuuu_dddd_eeee _<<<<_ssss_yyyy_ssss_////_dddd_dddd_iiii_...._hhhh_>>>>
  15.      _bbbb_oooo_oooo_llll_eeee_aaaa_nnnn______tttt _MMMM_UUUU_TTTT_EEEE_XXXX______TTTT_RRRR_YYYY_LLLL_OOOO_CCCC_KKKK_((((_mmmm_uuuu_tttt_eeee_xxxx______tttt _****_l_o_c_k_p);
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  17.    AAAArrrrgggguuuummmmeeeennnnttttssss
  18.      _l_o_c_k_p     Pointer to the mutual exclusion lock to be acquired.
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  20. DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
  21.      If the lock specified by _l_o_c_k_p can be acquired without sleeping the
  22.      _MMMM_UUUU_TTTT_EEEE_XXXX______TTTT_RRRR_YYYY_LLLL_OOOO_CCCC_KKKK function acquires the lock.  If the lock is not immediately
  23.      available, _MMMM_UUUU_TTTT_EEEE_XXXX______TTTT_RRRR_YYYY_LLLL_OOOO_CCCC_KKKK returns without acquiring the lock.
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  25.    RRRReeeettttuuuurrrrnnnn VVVVaaaalllluuuueeeessss
  26.      _MMMM_UUUU_TTTT_EEEE_XXXX______TTTT_RRRR_YYYY_LLLL_OOOO_CCCC_KKKK returns _TTTT_RRRR_UUUU_EEEE (a non-zero value) if the lock is successfully
  27.      acquired or _FFFF_AAAA_LLLL_SSSS_EEEE (zero) if the lock is not acquired.
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  29. UUUUSSSSAAAAGGGGEEEE
  30.    LLLLeeeevvvveeeellll
  31.      Base only.  This routine may not be called from Interrupt level.
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  33.    SSSSyyyynnnncccchhhhrrrroooonnnniiiizzzzaaaattttiiiioooonnnn CCCCoooonnnnssssttttrrrraaaaiiiinnnnttttssss
  34.      Does not sleep.
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  36.      Driver-defined basic locks, read/write locks, other mutual exclusion
  37.      locks and sleep locks may be held across calls to this function.
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  39. RRRREEEEFFFFEEEERRRREEEENNNNCCCCEEEESSSS
  40.      _MMMM_UUUU_TTTT_EEEE_XXXX______AAAA_LLLL_LLLL_OOOO_CCCC(D3), _MMMM_UUUU_TTTT_EEEE_XXXX______IIII_NNNN_IIII_TTTT(D3), _MMMM_UUUU_TTTT_EEEE_XXXX______DDDD_EEEE_AAAA_LLLL_LLLL_OOOO_CCCC(D3), _MMMM_UUUU_TTTT_EEEE_XXXX______DDDD_EEEE_SSSS_TTTT_RRRR_OOOO_YYYY(D3),
  41.      _MMMM_UUUU_TTTT_EEEE_XXXX______LLLL_OOOO_CCCC_KKKK(D3), _MMMM_UUUU_TTTT_EEEE_XXXX______UUUU_NNNN_LLLL_OOOO_CCCC_KKKK(D3), _MMMM_UUUU_TTTT_EEEE_XXXX______OOOO_WWWW_NNNN_EEEE_DDDD(D3), _MMMM_UUUU_TTTT_EEEE_XXXX______MMMM_IIII_NNNN_EEEE(D3).
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  62.                                                                         PPPPaaaaggggeeee 1111
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