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| <tr><td width=20><td><b>POSTNOTE(3)</b><td align=right><b>POSTNOTE(3)</b> |
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| <p><font size=+1><b>NAME </b></font><br> |
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| postnote – send a note to a process or process group<br> |
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| <p><font size=+1><b>SYNOPSIS </b></font><br> |
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| <tt><font size=+1>#include <u.h><br> |
| #include <libc.h> |
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| <tt><font size=+1>int postnote(int who, int pid, char *note)<br> |
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| <p><font size=+1><b>DESCRIPTION </b></font><br> |
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| <i>Postnote</i> sends a note to a process or process group. If <i>who</i> is |
| <tt><font size=+1>PNPROC</font></tt>, then <i>note</i> is sent to the process with id <i>pid</i>. If <i>who</i> is |
| <tt><font size=+1>PNGROUP</font></tt><i>,</i> the note is delivered to the process group which has |
| the process with id <i>pid</i> as a member. For <tt><font size=+1>PNGROUP</font></tt> only, if the |
| calling process is in the target group, the note is <i>not</i> delivered |
| to |
| that process. |
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| If the write is successful, zero is returned. Otherwise –1 is returned.<br> |
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| <p><font size=+1><b>SOURCE </b></font><br> |
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| <tt><font size=+1>/usr/local/plan9/src/lib9/postnote.c<br> |
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| <p><font size=+1><b>SEE ALSO </b></font><br> |
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| <a href="../man3/notify.html"><i>notify</i>(3)</a>, <a href="../man3/intro.html"><i>intro</i>(3)</a><br> |
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| <p><font size=+1><b>DIAGNOSTICS </b></font><br> |
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| Sets <i>errstr</i>.<br> |
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