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| 2cf6fecc C |
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| 4 | SIGBLOCK(2) UNIX Programmer's Manual SIGBLOCK(2) | |
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| 7 | ||
| 8 | N\bNA\bAM\bME\bE | |
| 9 | sigblock - block signals | |
| 10 | ||
| 11 | S\bSY\bYN\bNO\bOP\bPS\bSI\bIS\bS | |
| 12 | #\b#i\bin\bnc\bcl\blu\bud\bde\be <\b<s\bsi\big\bgn\bna\bal\bl.\b.h\bh>\b> | |
| 13 | ||
| 14 | s\bsi\big\bgb\bbl\blo\boc\bck\bk(\b(m\bma\bas\bsk\bk)\b);\b; | |
| 15 | i\bin\bnt\bt m\bma\bas\bsk\bk;\b; | |
| 16 | ||
| 17 | m\bma\bas\bsk\bk =\b= s\bsi\big\bgm\bma\bas\bsk\bk(\b(s\bsi\big\bgn\bnu\bum\bm)\b) | |
| 18 | ||
| 19 | D\bDE\bES\bSC\bCR\bRI\bIP\bPT\bTI\bIO\bON\bN | |
| 20 | _\bS_\bi_\bg_\bb_\bl_\bo_\bc_\bk causes the signals specified in _\bm_\ba_\bs_\bk to be added to | |
| 21 | the set of signals currently being blocked from delivery. | |
| 22 | Signals are blocked if the corresponding bit in _\bm_\ba_\bs_\bk is a 1; | |
| 23 | the macro _\bs_\bi_\bg_\bm_\ba_\bs_\bk is provided to construct the mask for a | |
| 24 | given _\bs_\bi_\bg_\bn_\bu_\bm. | |
| 25 | ||
| 26 | It is not possible to block SIGKILL, SIGSTOP, or SIGCONT; | |
| 27 | this restriction is silently imposed by the system. | |
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| 29 | R\bRE\bET\bTU\bUR\bRN\bN V\bVA\bAL\bLU\bUE\bE | |
| 30 | The previous set of masked signals is returned. | |
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| 32 | S\bSE\bEE\bE A\bAL\bLS\bSO\bO | |
| 33 | kill(2), sigvec(2), sigsetmask(2) | |
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| 63 | Printed 7/9/88 May 14, 1986 1 | |
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