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| author | rsc <devnull@localhost> | 2004-04-10 18:53:55 +0000 |
|---|---|---|
| committer | rsc <devnull@localhost> | 2004-04-10 18:53:55 +0000 |
| commit | cfa37a7b1131abbab2e7d339b451f5f0e3198cc8 (patch) | |
| tree | a7fe52416e9d27efe2af2d54910112674c0fd7c6 /man/man3/postnote.3 | |
| parent | 08df2a433e69c94f9db002c83380cb2b693fee60 (diff) | |
| download | plan9port-cfa37a7b1131abbab2e7d339b451f5f0e3198cc8.tar.gz plan9port-cfa37a7b1131abbab2e7d339b451f5f0e3198cc8.tar.bz2 plan9port-cfa37a7b1131abbab2e7d339b451f5f0e3198cc8.zip | |
Lots of man pages.
Diffstat (limited to 'man/man3/postnote.3')
| -rw-r--r-- | man/man3/postnote.3 | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/man/man3/postnote.3 b/man/man3/postnote.3 new file mode 100644 index 00000000..20766da1 --- /dev/null +++ b/man/man3/postnote.3 @@ -0,0 +1,49 @@ +.TH POSTNOTE 3 +.SH NAME +postnote \- send a note to a process or process group +.SH SYNOPSIS +.B #include <u.h> +.br +.B #include <libc.h> +.PP +.nf +.B +int postnote(int who, int pid, char *note) +.fi +.SH DESCRIPTION +.I Postnote +sends a note to a process or process group. +If +.I who +is +.BR PNPROC , +then +.I note +is written to +.BI /proc/ pid /note\f1. +If +.I who +is +.BI PNGROUP , +the note is delivered to the +process group by writing +.I note +to +.BI /proc/ pid /notepg\f1. +For +.B PNGROUP +only, if the calling process is in the target group, the note is +.I not +delivered to that process. +.PP +If the write is successful, zero is returned. +Otherwise \-1 is returned. +.SH SOURCE +.B /sys/src/libc/9sys/postnote.c +.SH "SEE ALSO" +.IR notify (2), +.IR intro (2), +.IR proc (3) +.SH DIAGNOSTICS +Sets +.IR errstr . |