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Text File  |  2002-10-03  |  2.1 KB  |  67 lines
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  4. pppptttthhhhrrrreeeeaaaadddd____oooonnnncccceeee((((3333PPPP))))                                              pppptttthhhhrrrreeeeaaaadddd____oooonnnncccceeee((((3333PPPP))))
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  8. NNNNAAAAMMMMEEEE
  9.      pthread_once - thread-safe initialization
  10.  
  11. CCCC SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
  12.      ####iiiinnnncccclllluuuuddddeeee <<<<pppptttthhhhrrrreeeeaaaadddd....hhhh>>>>
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  14.      iiiinnnntttt pppptttthhhhrrrreeeeaaaadddd____oooonnnncccceeee((((pppptttthhhhrrrreeeeaaaadddd____oooonnnncccceeee____tttt ****oooonnnncccceeee,,,, vvvvooooiiiidddd ((((****iiiinnnniiiitttt))))((((vvvvooooiiiidddd))))))));;;;
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  16. DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
  17.      The _p_t_h_r_e_a_d__o_n_c_e() function ensures that the function _i_n_i_t is called
  18.      exactly once for all callers using the _o_n_c_e initialization variable.
  19.      This variable is initialized with the constant PPPPTTTTHHHHRRRREEEEAAAADDDD____OOOONNNNCCCCEEEE____IIIINNNNIIIITTTT.  While
  20.      _i_n_i_t is being executed all callers of _p_t_h_r_e_a_d__o_n_c_e() will wait.
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  22.      If a thread is cancelled while executing the _i_n_i_t function [see
  23.      _p_t_h_r_e_a_d__s_e_t_c_a_n_c_e_l_s_t_a_t_e()], then _p_t_h_r_e_a_d__o_n_c_e() will permit another thread
  24.      (possibly waiting) to make the call.
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  26. DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS
  27.      There are no errors for _p_t_h_r_e_a_d__o_n_c_e.
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  29. SSSSEEEEEEEE AAAALLLLSSSSOOOO
  30.      pthread_setcancelstate(3P).
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  63.                                                                         PPPPaaaaggggeeee 1111
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