diff options
Diffstat (limited to 'share/man/man9')
-rw-r--r-- | share/man/man9/Makefile | 2 | ||||
-rw-r--r-- | share/man/man9/mbuf.9 | 18 | ||||
-rw-r--r-- | share/man/man9/pget.9 | 107 |
3 files changed, 121 insertions, 6 deletions
diff --git a/share/man/man9/Makefile b/share/man/man9/Makefile index 37ba7f2e85fc..453f3c0850df 100644 --- a/share/man/man9/Makefile +++ b/share/man/man9/Makefile @@ -192,6 +192,7 @@ MAN= accept_filter.9 \ pci.9 \ pfil.9 \ pfind.9 \ + pget.9 \ pgfind.9 \ physio.9 \ pmap.9 \ @@ -902,6 +903,7 @@ MLINKS+=\ mbuf.9 m_freem.9 \ mbuf.9 MGET.9 \ mbuf.9 m_get.9 \ + mbuf.9 m_get2.9 \ mbuf.9 m_getjcl.9 \ mbuf.9 m_getcl.9 \ mbuf.9 m_getclr.9 \ diff --git a/share/man/man9/mbuf.9 b/share/man/man9/mbuf.9 index 4df1d6ab704d..9b75c6136b78 100644 --- a/share/man/man9/mbuf.9 +++ b/share/man/man9/mbuf.9 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd January 16, 2014 +.Dd April 30, 2014 .Dt MBUF 9 .Os .\" @@ -64,23 +64,25 @@ .Fn M_TRAILINGSPACE "struct mbuf *mbuf" .Fn M_MOVE_PKTHDR "struct mbuf *to" "struct mbuf *from" .Fn M_PREPEND "struct mbuf *mbuf" "int len" "int how" -.Fn MCHTYPE "struct mbuf *mbuf" "u_int type" +.Fn MCHTYPE "struct mbuf *mbuf" "short type" .Ft int .Fn M_WRITABLE "struct mbuf *mbuf" .\" .Ss Mbuf allocation functions .Ft struct mbuf * -.Fn m_get "int how" "int type" +.Fn m_get "int how" "short type" .Ft struct mbuf * -.Fn m_getm "struct mbuf *orig" "int len" "int how" "int type" +.Fn m_get2 "int size" "int how" "short type" "int flags" +.Ft struct mbuf * +.Fn m_getm "struct mbuf *orig" "int len" "int how" "short type" .Ft struct mbuf * .Fn m_getjcl "int how" "short type" "int flags" "int size" .Ft struct mbuf * .Fn m_getcl "int how" "short type" "int flags" .Ft struct mbuf * -.Fn m_getclr "int how" "int type" +.Fn m_getclr "int how" "short type" .Ft struct mbuf * -.Fn m_gethdr "int how" "int type" +.Fn m_gethdr "int how" "short type" .Ft struct mbuf * .Fn m_free "struct mbuf *mbuf" .Ft void @@ -528,6 +530,10 @@ The functions are: A function version of .Fn MGET for non-critical paths. +.It Fn m_get2 size how type flags +Allocate an +.Vt mbuf +with enough space to hold specified amount of data. .It Fn m_getm orig len how type Allocate .Fa len diff --git a/share/man/man9/pget.9 b/share/man/man9/pget.9 new file mode 100644 index 000000000000..12eda29ca7c8 --- /dev/null +++ b/share/man/man9/pget.9 @@ -0,0 +1,107 @@ +.\" Copyright (c) 2011 Sergey Kandaurov +.\" All rights reserved. +.\" +.\" Redistribution and use in source and binary forms, with or without +.\" modification, are permitted provided that the following conditions +.\" are met: +.\" 1. Redistributions of source code must retain the above copyright +.\" notice, this list of conditions and the following disclaimer. +.\" 2. Redistributions in binary form must reproduce the above copyright +.\" notice, this list of conditions and the following disclaimer in the +.\" documentation and/or other materials provided with the distribution. +.\" +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +.\" SUCH DAMAGE. +.\" +.\" $FreeBSD$ +.\" +.Dd May 3, 2014 +.Dt PGET 9 +.Os +.Sh NAME +.Nm pget +.Nd locate a process by number +.Sh SYNOPSIS +.In sys/param.h +.In sys/proc.h +.Ft int +.Fn pget "pid_t pid" "int flags" "struct proc **pp" +.Sh DESCRIPTION +This function +takes a +.Fa pid +as its argument, +which can be either a process or thread id, +and fills a pointer to the +.Vt proc +structure in +.Fa *pp . +In the latter case, a process owning the specified thread is looked for. +The operation is performed by invoking the +.Xr pfind 9 +function. +The found process is returned locked. +For the +.Dv PGET_HOLD +case, it is returned unlocked (but held). +The +.Fn pget +function can +perform additional manipulations, depending on a +.Fa flags +argument. +.Pp +The +.Fa flags +argument is the logical OR of some subset of: +.Bl -tag -width ".Dv PGET_NOTINEXEC" +.It Dv PGET_HOLD +If set, the found process will be held and unlocked. +.It Dv PGET_CANSEE +If set, the found process will be checked for its visibility. +See +.Xr p_cansee 9 . +.It Dv PGET_CANDEBUG +If set, the found process will be checked for its debuggability. +See +.Xr p_candebug 9 . +.It Dv PGET_ISCURRENT +If set, the found process will be checked that it matches the current +process context. +.It Dv PGET_NOTWEXIT +If set, the found process will be checked that it does not have the process +flag +.Dv P_WEXIT +set. +.It Dv PGET_NOTINEXEC +If set, the found process will be checked that it does not have the process +flag +.Dv P_INEXEC +set. +.It Dv PGET_NOTID +If set, +.Fa pid +is not assumed as a thread id for values larger than +.Dv PID_MAX . +.It Dv PGET_WANTREAD +If set, the found process will be checked that the caller may get +a read access to its structure. +A shorthand for +.Pq Dv PGET_HOLD | PGET_CANDEBUG | PGET_NOTWEXIT . +.El +.Sh RETURN VALUES +If the process is found in the specified way, then zero is returned, +otherwise an appropriate error code is returned. +.Sh SEE ALSO +.Xr p_candebug 9 , +.Xr p_cansee 9 , +.Xr pfind 9 |