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- SIGBLOCK(2) UNIX Programmer's Manual SIGBLOCK(2)
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- NNAAMMEE
- ssiiggbblloocckk - block signals
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- SSYYNNOOPPSSIISS
- ##iinncclluuddee <<ssyyss//ssiiggnnaall..hh>>
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- _i_n_t
- ssiiggbblloocckk(_i_n_t _m_a_s_k)
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- _i_n_t
- ssiiggmmaasskk(_s_i_g_n_u_m)
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- DDEESSCCRRIIPPTTIIOONN
- TThhiiss iinntteerrffaaccee iiss mmaaddee oobbssoolleettee bbyy:: sigprocmask(2).
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- SSiiggbblloocckk() adds the signals specified in _m_a_s_k to the set of signals curĀ
- rently being blocked from delivery. Signals are blocked if the correĀ
- sponding bit in _m_a_s_k is a 1; the macro ssiiggmmaasskk() is provided to construct
- the mask for a given _s_i_g_n_u_m.
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- It is not possible to block SIGKILL or SIGSTOP; this restriction is
- silently imposed by the system.
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- RREETTUURRNN VVAALLUUEESS
- The previous set of masked signals is returned.
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- SSEEEE AALLSSOO
- kill(2), sigprocmask(2), sigaction(2), sigsetmask(2), sigsetops(3)
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- HHIISSTTOORRYY
- The ssiiggbblloocckk function call appeared in 4.2BSD and has been deprecated.
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- 4.2 Berkeley Distribution March 10, 1991 1
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