_aaaa_tttt_ssss_pppp_rrrr_oooo_cccc______cccc_hhhh_iiii_llll_dddd, _aaaa_tttt_ssss_pppp_rrrr_oooo_cccc______pppp_aaaa_rrrr_eeee_nnnn_tttt, _aaaa_tttt_ssss_pppp_rrrr_oooo_cccc______pppp_rrrr_eeee - add sproc pre and post
_aaaa_tttt_ssss_pppp_rrrr_oooo_cccc______cccc_hhhh_iiii_llll_dddd adds the function _f_u_n_c to a list of functions to be called
without arguments on entry of a child process created by _ssss_pppp_rrrr_oooo_cccc(2). At
most 32 functions may be registered by _aaaa_tttt_ssss_pppp_rrrr_oooo_cccc______cccc_hhhh_iiii_llll_dddd; the functions will
be called in the same order as their registration.
_aaaa_tttt_ssss_pppp_rrrr_oooo_cccc______pppp_aaaa_rrrr_eeee_nnnn_tttt adds the function _f_u_n_c to a list of functions to be called
with two integer arguments after calling _ssss_pppp_rrrr_oooo_cccc(2). At most 32 functions
may be registered by _aaaa_tttt_ssss_pppp_rrrr_oooo_cccc______pppp_aaaa_rrrr_eeee_nnnn_tttt; the functions will be called in the
same order as their registration.
_aaaa_tttt_ssss_pppp_rrrr_oooo_cccc______pppp_rrrr_eeee adds the function _f_u_n_c to a list of functions to be called
with one unsigned integer argument just preceeding a call to _ssss_pppp_rrrr_oooo_cccc(2).
At most 32 functions may be registered by _aaaa_tttt_ssss_pppp_rrrr_oooo_cccc______cccc_hhhh_iiii_llll_dddd; the functions
will be called in the reverse order as their registration.
_aaaa_tttt_ssss_pppp_rrrr_oooo_cccc______cccc_hhhh_iiii_llll_dddd, _aaaa_tttt_ssss_pppp_rrrr_oooo_cccc______pppp_aaaa_rrrr_eeee_nnnn_tttt, and _aaaa_tttt_ssss_pppp_rrrr_oooo_cccc______pppp_rrrr_eeee all return 0 if the
registration succeeds. Otherwise, a value of -1 is returned and _e_r_r_n_o is