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/ IRIX Base Documentation 2001 May / SGI IRIX Base Documentation 2001 May.iso / usr / share / catman / p_man / cat3c / sem_post.z / sem_post
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Text File  |  1998-10-20  |  2.2 KB  |  66 lines
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  4. sssseeeemmmm____ppppoooosssstttt((((3333CCCC))))                                                      sssseeeemmmm____ppppoooosssstttt((((3333CCCC))))
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  8. NNNNAAAAMMMMEEEE
  9.      _ssss_eeee_mmmm______pppp_oooo_ssss_tttt - release a posix named or unnamed semaphore
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  11. SSSSYYYYNNNNOOOOPPPPSSSSIIIISSSS
  12.      _####_iiii_nnnn_cccc_llll_uuuu_dddd_eeee _<<<<_ssss_eeee_mmmm_aaaa_pppp_hhhh_oooo_rrrr_eeee_...._hhhh_>>>>
  13.      _iiii_nnnn_tttt _ssss_eeee_mmmm______pppp_oooo_ssss_tttt_((((_ssss_eeee_mmmm______tttt _****_s_e_m_))))_;;;;
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  15. DDDDEEEESSSSCCCCRRRRIIIIPPPPTTTTIIIIOOOONNNN
  16.      _ssss_eeee_mmmm______pppp_oooo_ssss_tttt atomically increments the value of the semaphore located at
  17.      address _s_e_m.  If any processes are blocked on the semaphore, the highest
  18.      priority process waiting the longest is unblocked and made runnable.
  19.  
  20.      The address _s_e_m may reside anywhere in the calling processes address
  21.      space, but the process must have read and write access to _s_e_m.
  22.  
  23.      _ssss_eeee_mmmm______pppp_oooo_ssss_tttt will fail if the following is true:
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  25.      [EINVAL]    The semaphore located at address _s_e_m is not a valid posix
  26.                  named or unnamed semaphore.
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  28. SSSSEEEEEEEE AAAALLLLSSSSOOOO
  29.      sem_init(3C), sem_destroy(3C), sem_getvalue(3C), sem_post(3C),
  30.      sem_wait(3C), sem_trywait(3C), sem_open(3C), sem_close(3C),
  31.      sem_unlink(3C),
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  33. DDDDIIIIAAAAGGGGNNNNOOOOSSSSTTTTIIIICCCCSSSS
  34.      Upon successful completion, a value of 0 is returned to the calling
  35.      process. Otherwise, a value of -1 is returned and _eeee_rrrr_rrrr_nnnn_oooo is set to
  36.      indicate the error.
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  62.                                                                         PPPPaaaaggggeeee 1111
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