flushband(9F) Kernel Functions for Drivers flushband(9F)NAME
flushband - flush messages for a specified priority band
SYNOPSIS
#include <sys/stream.h>
void flushband(queue_t *q, unsigned char pri, int flag);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
q Pointer to the queue.
pri Priority of messages to be flushed.
flag Valid flag values are:
FLUSHDATA Flush only data messages (types M_DATA, M_DELAY, M_PROTO, and M_PCPROTO ).
FLUSHALL Flush all messages.
DESCRIPTION
flushband() flushes messages associated with the priority band specified by pri. If pri is 0, only normal and high priority messages are
flushed. Otherwise, messages are flushed from the band pri according to the value of flag.
CONTEXT
flushband() can be called from user or interrupt context.
SEE ALSO flushq(9F)
Writing Device Drivers STREAMS Programming Guide
SunOS 5.10 11 Apr 1991 flushband(9F)
Check Out this Related Man Page
flushq(9F) Kernel Functions for Drivers flushq(9F)NAME
flushq - remove messages from a queue
SYNOPSIS
#include <sys/stream.h>
void flushq(queue_t *q, int flag);
INTERFACE LEVEL
Architecture independent level 1 (DDI/DKI).
PARAMETERS
q Pointer to the queue to be flushed.
flag Valid flag values are:
FLUSHDATA Flush only data messages (types M_DATA M_DELAY M_PROTO and M_PCPROTO).
FLUSHALL Flush all messages.
DESCRIPTION
flushq() frees messages and their associated data structures by calling freemsg(9F). If the queue's count falls below the low water mark
and the queue was blocking an upstream service procedure, the nearest upstream service procedure is enabled.
CONTEXT
flushq() can be called from user or interrupt context.
EXAMPLES
Example 1: Using flushq()
This example depicts the canonical flushing code for STREAMS modules. The module has a write service procedure and potentially has messages
on the queue. If it receives an M_FLUSH message, and if the FLUSHR bit is on in the first byte of the message (line 10), then the read
queue is flushed (line 11). If the FLUSHW bit is on (line 12), then the write queue is flushed (line 13). Then the message is passed along
to the next entity in the stream (line 14). See the example for qreply(9F) for the canonical flushing code for drivers.
1 /*
2 * Module write-side put procedure.
3 */
4 xxxwput(q, mp)
5 queue_t *q;
6 mblk_t *mp;
7 {
8 switch(mp->b_datap->db_type) {
9 case M_FLUSH:
10 if (*mp->b_rptr & FLUSHR)
11 flushq(RD(q), FLUSHALL);
12 if (*mp->b_rptr & FLUSHW)
13 flushq(q, FLUSHALL);
14 putnext(q, mp);
15 break;
. . .
16 }
17 }
SEE ALSO flushband(9F), freemsg(9F), putq(9F), qreply(9F)
Writing Device Drivers STREAMS Programming Guide
SunOS 5.10 11 Apr 1991 flushq(9F)
Hi, i have a file like this:
A1
kdfjdljfdkljfdlf
A2
lfjdlfkjddkjf
A3
***no hit***
A4
ldjfldjfdk
A5
***no hit***
A6
jldfjdlfjdlkfjd
I want to remove the lines "***no hit*** and their above line to get an output file like this: (11 Replies)
Not my story, but interesting enough to be worth posting here IMHO. (Original is here)
The following is the 500-mile email story in the form it originally appeared, in a post to sage-members on Sun, 24 Nov 2002.:
From trey@sage.org Fri Nov 29 18:00:49 2002
Date: Sun, 24 Nov 2002 21:03:02... (3 Replies)
Hi everyone,
I know the following questions are noobish questions but I am asking them because I am confused about the basics of history behind UNIX and LINUX.
Ok onto business, my questions are-:
Was/Is UNIX ever an open source operating system ?
If UNIX was... (21 Replies)
Hi gurus,
I have a weird requirement. I need to convert the number to english lecture.
I have 1.2 ....19 numbers
I need to convert to first second third fourth, fifth, sixth...
Is there any way convert it using unix command?
thanks in advance. (8 Replies)
Hi,
Humorous UNIX Commands shows a fun way of using echo and dc to sort of obfuscate a string.
% echo 'sasb3135071790101768542287578439snlbxq'|dc
GET A LIFE!
I am just wanting to know if there is a way to sort of use dc and echo to print out an obfuscated/garbled string instead... (3 Replies)
Hi All,
Having recently started a new job, a Data Center Migration in fact I have been tasked with looking at some of the older Solaris boxes when I came across this little gem.
nismas# uname -a
SunOS nismas 5.5.1 Generic_103640-27 sun4u sparc SUNW,Ultra-1
nismas# uptime
10:37am up 2900... (2 Replies)
For any SunOS 5.XX release, it appears prior to the "login:" prompt (as if a "uname" command is run).
Would anyone know where that initial display of SunOS release comes from upon a remote login and how I can stop if from displaying?
Thank you (4 Replies)
I am trying to remove each line in which $2 is FP or RFP. I believe the below will remove one instance but not both. Thank you :).
file
12
123 FP
11
10 RFP
awk
awk -F'\t' '
$2 != "FP"' file
desired output
12
11 (6 Replies)
Hi everybody,
Which Unix base OS have best performance for HOST virtualization?
I tested SmartOS but it needs another OS to connect remotely!
Thanks in advance. (11 Replies)
I have this file:
>ID1
AA
>ID2
TTTTTT
>ID-3
AAAAAAAAA
>ID4
TTTTTTGGAGATCAGTAGCAGATGACAG-GGGGG-TGCACCCC
Add I am trying to use this script to output sequences longer than 15 characters:
sed -r '/^>/N;{/^.{,15}$/d}'
The desire output would be this:
>ID4... (8 Replies)
Hi,
I am having contents in a file like below,
cat testfile
rpool/swap
rpool/swap14
rpool/swap2
rpool/swap3
I want to sort the above contents like,
rpool/swap
rpool/swap2
rpool/swap3
rpool/swap14
I have tried in this way, (7 Replies)
Morning All
So, I am starting looking into the world of UNIX for a new job (luckily not my primary function!) and I am looking to get stared. Like anything I seem to learn best by trying things out first in an environment but I have a key question:
Currently I use Oracle VirtualBox, can... (8 Replies)