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freebsd-src/sys/kern/posix4_mib.c

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Reviewed by: msmith, bde long ago POSIX.4 headers and sysctl variables. Nothing should change unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:27:00 +00:00
/*-
* Copyright (c) 1998
* HD Associates, Inc. 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.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by HD Associates, Inc
* 4. Neither the name of the author nor the names of any co-contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY HD ASSOCIATES 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 HD ASSOCIATES 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.
*/
Use __FBSDID().
2003-06-11 07:34:30 +01:00
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
Reviewed by: msmith, bde long ago POSIX.4 headers and sysctl variables. Nothing should change unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:27:00 +00:00
#include <sys/param.h>
Back when VOP_* was introduced, we did not have new-style struct initializations but we did have lofty goals and big ideals. Adjust to more contemporary circumstances and gain type checking. Replace the entire vop_t frobbing thing with properly typed structures. The only casualty is that we can not add a new VOP_ method with a loadable module. History has not given us reason to belive this would ever be feasible in the the first place. Eliminate in toto VOCALL(), vop_t, VNODEOP_SET() etc. Give coda correct prototypes and function definitions for all vop_()s. Generate a bit more data from the vnode_if.src file: a struct vop_vector and protype typedefs for all vop methods. Add a new vop_bypass() and make vop_default be a pointer to another struct vop_vector. Remove a lot of vfs_init since vop_vector is ready to use from the compiler. Cast various vop_mumble() to void * with uppercase name, for instance VOP_PANIC, VOP_NULL etc. Implement VCALL() by making vdesc_offset the offsetof() the relevant function pointer in vop_vector. This is disgusting but since the code is generated by a script comparatively safe. The alternative for nullfs etc. would be much worse. Fix up all vnode method vectors to remove casts so they become typesafe. (The bulk of this is generated by scripts)
2004-12-01 23:16:38 +00:00
#include <sys/systm.h>
Reviewed by: msmith, bde long ago POSIX.4 headers and sysctl variables. Nothing should change unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:27:00 +00:00
#include <sys/kernel.h>
* Change sysctl from using linker_set to construct its tree using SLISTs. This makes it possible to change the sysctl tree at runtime. * Change KLD to find and register any sysctl nodes contained in the loaded file and to unregister them when the file is unloaded. Reviewed by: Archie Cobbs <archie@whistle.com>, Peter Wemm <peter@netplex.com.au> (well they looked at it anyway)
1999-02-16 10:49:55 +00:00
#include <sys/queue.h>
Reviewed by: msmith, bde long ago POSIX.4 headers and sysctl variables. Nothing should change unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:27:00 +00:00
#include <sys/sysctl.h>
Change the way support for asynchronous I/O is indicated to applications to conform to 1003.1-2001. Make it possible for applications to actually tell whether or not asynchronous I/O is supported. Since FreeBSD's aio implementation works on all descriptor types, don't call down into file or vnode ops when [f]pathconf() is asked about _PC_ASYNC_IO; this avoids the need for every file and vnode op to know about it.
2002-10-27 18:07:41 +00:00
#include <sys/vnode.h>
Finish _POSIX_PRIORITY_SCHEDULING. Needs P1003_1B and _KPOSIX_PRIORITY_SCHEDULING options to work. Changes: Change all "posix4" to "p1003_1b". Misnamed files are left as "posix4" until I'm told if I can simply delete them and add new ones; Add _POSIX_PRIORITY_SCHEDULING system calls for FreeBSD and Linux; Add man pages for _POSIX_PRIORITY_SCHEDULING system calls; Add options to LINT; Minor fixes to P1003_1B code during testing.
1998-03-28 11:51:01 +00:00
#include <posix4/posix4.h>
Reviewed by: msmith, bde long ago POSIX.4 headers and sysctl variables. Nothing should change unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:27:00 +00:00
Finish _POSIX_PRIORITY_SCHEDULING. Needs P1003_1B and _KPOSIX_PRIORITY_SCHEDULING options to work. Changes: Change all "posix4" to "p1003_1b". Misnamed files are left as "posix4" until I'm told if I can simply delete them and add new ones; Add _POSIX_PRIORITY_SCHEDULING system calls for FreeBSD and Linux; Add man pages for _POSIX_PRIORITY_SCHEDULING system calls; Add options to LINT; Minor fixes to P1003_1B code during testing.
1998-03-28 11:51:01 +00:00
static int facility[CTL_P1003_1B_MAXID - 1];
Rework the sysconf(3) interaction with aio: sysconf.c: Use 'break' rather than 'goto yesno' in sysconf.c so that we report a '0' return value from the kernel sysctl. vfs_aio.c: Make aio reset its configuration parameters to -1 after unloading instead of 0. posix4_mib.c: Initialize the aio configuration parameters to -1 to indicate that it is not loaded. Add a facility (p31b_iscfg()) to determine if a posix4 facility has been initialized to avoid having to re-order the SYSINITs. Use p31b_iscfg() to determine if aio has had a chance to run yet which is likely if it is compiled into the kernel and avoid spamming its values. Introduce a macro P31B_VALID() instead of doing the same comparison over and over. posix4.h: Prototype p31b_iscfg().
2002-11-17 04:15:34 +00:00
static int facility_initialized[CTL_P1003_1B_MAXID - 1];
Finish _POSIX_PRIORITY_SCHEDULING. Needs P1003_1B and _KPOSIX_PRIORITY_SCHEDULING options to work. Changes: Change all "posix4" to "p1003_1b". Misnamed files are left as "posix4" until I'm told if I can simply delete them and add new ones; Add _POSIX_PRIORITY_SCHEDULING system calls for FreeBSD and Linux; Add man pages for _POSIX_PRIORITY_SCHEDULING system calls; Add options to LINT; Minor fixes to P1003_1B code during testing.
1998-03-28 11:51:01 +00:00
/* OID_AUTO isn't working with sysconf(3). I guess I'd have to
* modify it to do a lookup by name from the index.
* For now I've left it a top-level sysctl.
*/
#if 1
* Change sysctl from using linker_set to construct its tree using SLISTs. This makes it possible to change the sysctl tree at runtime. * Change KLD to find and register any sysctl nodes contained in the loaded file and to unregister them when the file is unloaded. Reviewed by: Archie Cobbs <archie@whistle.com>, Peter Wemm <peter@netplex.com.au> (well they looked at it anyway)
1999-02-16 10:49:55 +00:00
SYSCTL_DECL(_p1003_1b);
Finish _POSIX_PRIORITY_SCHEDULING. Needs P1003_1B and _KPOSIX_PRIORITY_SCHEDULING options to work. Changes: Change all "posix4" to "p1003_1b". Misnamed files are left as "posix4" until I'm told if I can simply delete them and add new ones; Add _POSIX_PRIORITY_SCHEDULING system calls for FreeBSD and Linux; Add man pages for _POSIX_PRIORITY_SCHEDULING system calls; Add options to LINT; Minor fixes to P1003_1B code during testing.
1998-03-28 11:51:01 +00:00
#define P1B_SYSCTL(num, name) \
SYSCTL_INT(_p1003_1b, num, \
name, CTLFLAG_RD, facility + num - 1, 0, "");
#else
* Change sysctl from using linker_set to construct its tree using SLISTs. This makes it possible to change the sysctl tree at runtime. * Change KLD to find and register any sysctl nodes contained in the loaded file and to unregister them when the file is unloaded. Reviewed by: Archie Cobbs <archie@whistle.com>, Peter Wemm <peter@netplex.com.au> (well they looked at it anyway)
1999-02-16 10:49:55 +00:00
SYSCTL_DECL(_kern_p1003_1b);
Finish _POSIX_PRIORITY_SCHEDULING. Needs P1003_1B and _KPOSIX_PRIORITY_SCHEDULING options to work. Changes: Change all "posix4" to "p1003_1b". Misnamed files are left as "posix4" until I'm told if I can simply delete them and add new ones; Add _POSIX_PRIORITY_SCHEDULING system calls for FreeBSD and Linux; Add man pages for _POSIX_PRIORITY_SCHEDULING system calls; Add options to LINT; Minor fixes to P1003_1B code during testing.
1998-03-28 11:51:01 +00:00
#define P1B_SYSCTL(num, name) \
SYSCTL_INT(_kern_p1003_1b, OID_AUTO, \
name, CTLFLAG_RD, facility + num - 1, 0, "");
SYSCTL_NODE(_kern, OID_AUTO, p1003_1b, CTLFLAG_RW, 0, "P1003.1B");
#endif
Reviewed by: msmith, bde long ago POSIX.4 headers and sysctl variables. Nothing should change unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:27:00 +00:00
Change the way support for asynchronous I/O is indicated to applications to conform to 1003.1-2001. Make it possible for applications to actually tell whether or not asynchronous I/O is supported. Since FreeBSD's aio implementation works on all descriptor types, don't call down into file or vnode ops when [f]pathconf() is asked about _PC_ASYNC_IO; this avoids the need for every file and vnode op to know about it.
2002-10-27 18:07:41 +00:00
SYSCTL_INT(_p1003_1b, CTL_P1003_1B_ASYNCHRONOUS_IO, \
asynchronous_io, CTLFLAG_RD, &async_io_version, 0, "");
Finish _POSIX_PRIORITY_SCHEDULING. Needs P1003_1B and _KPOSIX_PRIORITY_SCHEDULING options to work. Changes: Change all "posix4" to "p1003_1b". Misnamed files are left as "posix4" until I'm told if I can simply delete them and add new ones; Add _POSIX_PRIORITY_SCHEDULING system calls for FreeBSD and Linux; Add man pages for _POSIX_PRIORITY_SCHEDULING system calls; Add options to LINT; Minor fixes to P1003_1B code during testing.
1998-03-28 11:51:01 +00:00
P1B_SYSCTL(CTL_P1003_1B_MAPPED_FILES, mapped_files);
P1B_SYSCTL(CTL_P1003_1B_MEMLOCK, memlock);
P1B_SYSCTL(CTL_P1003_1B_MEMLOCK_RANGE, memlock_range);
P1B_SYSCTL(CTL_P1003_1B_MEMORY_PROTECTION, memory_protection);
P1B_SYSCTL(CTL_P1003_1B_MESSAGE_PASSING, message_passing);
P1B_SYSCTL(CTL_P1003_1B_PRIORITIZED_IO, prioritized_io);
P1B_SYSCTL(CTL_P1003_1B_PRIORITY_SCHEDULING, priority_scheduling);
P1B_SYSCTL(CTL_P1003_1B_REALTIME_SIGNALS, realtime_signals);
P1B_SYSCTL(CTL_P1003_1B_SEMAPHORES, semaphores);
P1B_SYSCTL(CTL_P1003_1B_FSYNC, fsync);
P1B_SYSCTL(CTL_P1003_1B_SHARED_MEMORY_OBJECTS, shared_memory_objects);
P1B_SYSCTL(CTL_P1003_1B_SYNCHRONIZED_IO, synchronized_io);
P1B_SYSCTL(CTL_P1003_1B_TIMERS, timers);
P1B_SYSCTL(CTL_P1003_1B_AIO_LISTIO_MAX, aio_listio_max);
P1B_SYSCTL(CTL_P1003_1B_AIO_MAX, aio_max);
P1B_SYSCTL(CTL_P1003_1B_AIO_PRIO_DELTA_MAX, aio_prio_delta_max);
P1B_SYSCTL(CTL_P1003_1B_DELAYTIMER_MAX, delaytimer_max);
P1B_SYSCTL(CTL_P1003_1B_MQ_OPEN_MAX, mq_open_max);
P1B_SYSCTL(CTL_P1003_1B_PAGESIZE, pagesize);
P1B_SYSCTL(CTL_P1003_1B_RTSIG_MAX, rtsig_max);
P1B_SYSCTL(CTL_P1003_1B_SEM_NSEMS_MAX, sem_nsems_max);
P1B_SYSCTL(CTL_P1003_1B_SEM_VALUE_MAX, sem_value_max);
P1B_SYSCTL(CTL_P1003_1B_SIGQUEUE_MAX, sigqueue_max);
P1B_SYSCTL(CTL_P1003_1B_TIMER_MAX, timer_max);
Reviewed by: msmith, bde long ago POSIX.4 headers and sysctl variables. Nothing should change unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:27:00 +00:00
Rework the sysconf(3) interaction with aio: sysconf.c: Use 'break' rather than 'goto yesno' in sysconf.c so that we report a '0' return value from the kernel sysctl. vfs_aio.c: Make aio reset its configuration parameters to -1 after unloading instead of 0. posix4_mib.c: Initialize the aio configuration parameters to -1 to indicate that it is not loaded. Add a facility (p31b_iscfg()) to determine if a posix4 facility has been initialized to avoid having to re-order the SYSINITs. Use p31b_iscfg() to determine if aio has had a chance to run yet which is likely if it is compiled into the kernel and avoid spamming its values. Introduce a macro P31B_VALID() instead of doing the same comparison over and over. posix4.h: Prototype p31b_iscfg().
2002-11-17 04:15:34 +00:00
#define P31B_VALID(num) ((num) >= 1 && (num) < CTL_P1003_1B_MAXID)
Finish _POSIX_PRIORITY_SCHEDULING. Needs P1003_1B and _KPOSIX_PRIORITY_SCHEDULING options to work. Changes: Change all "posix4" to "p1003_1b". Misnamed files are left as "posix4" until I'm told if I can simply delete them and add new ones; Add _POSIX_PRIORITY_SCHEDULING system calls for FreeBSD and Linux; Add man pages for _POSIX_PRIORITY_SCHEDULING system calls; Add options to LINT; Minor fixes to P1003_1B code during testing.
1998-03-28 11:51:01 +00:00
/* p31b_setcfg: Set the configuration
Reviewed by: msmith, bde long ago POSIX.4 headers and sysctl variables. Nothing should change unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:27:00 +00:00
*/
Add the rest of the kernel support for the sem_ API in kern/uipc_sem.c. Option 'P1003_1B_SEMAPHORES' to compile them in, or load the "sem" module to activate them. Have kern/makesyscalls.sh emit an include for sys/_semaphore.h into sysproto.h to pull in the typedef for semid_t. Add the syscalls to the syscall table as module stubs.
2002-09-19 01:43:32 +01:00
void
p31b_setcfg(int num, int value)
Reviewed by: msmith, bde long ago POSIX.4 headers and sysctl variables. Nothing should change unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:27:00 +00:00
{
Add the rest of the kernel support for the sem_ API in kern/uipc_sem.c. Option 'P1003_1B_SEMAPHORES' to compile them in, or load the "sem" module to activate them. Have kern/makesyscalls.sh emit an include for sys/_semaphore.h into sysproto.h to pull in the typedef for semid_t. Add the syscalls to the syscall table as module stubs.
2002-09-19 01:43:32 +01:00
Rework the sysconf(3) interaction with aio: sysconf.c: Use 'break' rather than 'goto yesno' in sysconf.c so that we report a '0' return value from the kernel sysctl. vfs_aio.c: Make aio reset its configuration parameters to -1 after unloading instead of 0. posix4_mib.c: Initialize the aio configuration parameters to -1 to indicate that it is not loaded. Add a facility (p31b_iscfg()) to determine if a posix4 facility has been initialized to avoid having to re-order the SYSINITs. Use p31b_iscfg() to determine if aio has had a chance to run yet which is likely if it is compiled into the kernel and avoid spamming its values. Introduce a macro P31B_VALID() instead of doing the same comparison over and over. posix4.h: Prototype p31b_iscfg().
2002-11-17 04:15:34 +00:00
if (P31B_VALID(num)) {
Reviewed by: msmith, bde long ago POSIX.4 headers and sysctl variables. Nothing should change unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:27:00 +00:00
facility[num - 1] = value;
Rework the sysconf(3) interaction with aio: sysconf.c: Use 'break' rather than 'goto yesno' in sysconf.c so that we report a '0' return value from the kernel sysctl. vfs_aio.c: Make aio reset its configuration parameters to -1 after unloading instead of 0. posix4_mib.c: Initialize the aio configuration parameters to -1 to indicate that it is not loaded. Add a facility (p31b_iscfg()) to determine if a posix4 facility has been initialized to avoid having to re-order the SYSINITs. Use p31b_iscfg() to determine if aio has had a chance to run yet which is likely if it is compiled into the kernel and avoid spamming its values. Introduce a macro P31B_VALID() instead of doing the same comparison over and over. posix4.h: Prototype p31b_iscfg().
2002-11-17 04:15:34 +00:00
facility_initialized[num - 1] = 1;
}
Reviewed by: msmith, bde long ago POSIX.4 headers and sysctl variables. Nothing should change unless POSIX4 is defined or _POSIX_VERSION is set to 199309.
1998-03-04 10:27:00 +00:00
}
Add $FreeBSD$. Initialize the POSIX.1b sysconf information appropriately for non-optional kernel functions.
2000-04-22 16:13:06 +01:00
Add the rest of the kernel support for the sem_ API in kern/uipc_sem.c. Option 'P1003_1B_SEMAPHORES' to compile them in, or load the "sem" module to activate them. Have kern/makesyscalls.sh emit an include for sys/_semaphore.h into sysproto.h to pull in the typedef for semid_t. Add the syscalls to the syscall table as module stubs.
2002-09-19 01:43:32 +01:00
int
p31b_getcfg(int num)
{
Rework the sysconf(3) interaction with aio: sysconf.c: Use 'break' rather than 'goto yesno' in sysconf.c so that we report a '0' return value from the kernel sysctl. vfs_aio.c: Make aio reset its configuration parameters to -1 after unloading instead of 0. posix4_mib.c: Initialize the aio configuration parameters to -1 to indicate that it is not loaded. Add a facility (p31b_iscfg()) to determine if a posix4 facility has been initialized to avoid having to re-order the SYSINITs. Use p31b_iscfg() to determine if aio has had a chance to run yet which is likely if it is compiled into the kernel and avoid spamming its values. Introduce a macro P31B_VALID() instead of doing the same comparison over and over. posix4.h: Prototype p31b_iscfg().
2002-11-17 04:15:34 +00:00
if (P31B_VALID(num))
Add the rest of the kernel support for the sem_ API in kern/uipc_sem.c. Option 'P1003_1B_SEMAPHORES' to compile them in, or load the "sem" module to activate them. Have kern/makesyscalls.sh emit an include for sys/_semaphore.h into sysproto.h to pull in the typedef for semid_t. Add the syscalls to the syscall table as module stubs.
2002-09-19 01:43:32 +01:00
return (facility[num - 1]);
return (0);
}
Rework the sysconf(3) interaction with aio: sysconf.c: Use 'break' rather than 'goto yesno' in sysconf.c so that we report a '0' return value from the kernel sysctl. vfs_aio.c: Make aio reset its configuration parameters to -1 after unloading instead of 0. posix4_mib.c: Initialize the aio configuration parameters to -1 to indicate that it is not loaded. Add a facility (p31b_iscfg()) to determine if a posix4 facility has been initialized to avoid having to re-order the SYSINITs. Use p31b_iscfg() to determine if aio has had a chance to run yet which is likely if it is compiled into the kernel and avoid spamming its values. Introduce a macro P31B_VALID() instead of doing the same comparison over and over. posix4.h: Prototype p31b_iscfg().
2002-11-17 04:15:34 +00:00
int
p31b_iscfg(int num)
{
if (P31B_VALID(num))
return (facility_initialized[num - 1]);
return (0);
}
Add $FreeBSD$. Initialize the POSIX.1b sysconf information appropriately for non-optional kernel functions.
2000-04-22 16:13:06 +01:00
/*
* Turn on indications for standard (non-configurable) kernel features.
*/
static void
p31b_set_standard(void *dummy)
{
/* ??? p31b_setcfg(CTL_P1003_1B_FSYNC, 1); */
p31b_setcfg(CTL_P1003_1B_MAPPED_FILES, 1);
p31b_setcfg(CTL_P1003_1B_SHARED_MEMORY_OBJECTS, 1);
p31b_setcfg(CTL_P1003_1B_PAGESIZE, PAGE_SIZE);
Rework the sysconf(3) interaction with aio: sysconf.c: Use 'break' rather than 'goto yesno' in sysconf.c so that we report a '0' return value from the kernel sysctl. vfs_aio.c: Make aio reset its configuration parameters to -1 after unloading instead of 0. posix4_mib.c: Initialize the aio configuration parameters to -1 to indicate that it is not loaded. Add a facility (p31b_iscfg()) to determine if a posix4 facility has been initialized to avoid having to re-order the SYSINITs. Use p31b_iscfg() to determine if aio has had a chance to run yet which is likely if it is compiled into the kernel and avoid spamming its values. Introduce a macro P31B_VALID() instead of doing the same comparison over and over. posix4.h: Prototype p31b_iscfg().
2002-11-17 04:15:34 +00:00
if (!p31b_iscfg(CTL_P1003_1B_AIO_LISTIO_MAX))
p31b_setcfg(CTL_P1003_1B_AIO_LISTIO_MAX, -1);
if (!p31b_iscfg(CTL_P1003_1B_AIO_MAX))
p31b_setcfg(CTL_P1003_1B_AIO_MAX, -1);
if (!p31b_iscfg(CTL_P1003_1B_AIO_PRIO_DELTA_MAX))
p31b_setcfg(CTL_P1003_1B_AIO_PRIO_DELTA_MAX, -1);
Add $FreeBSD$. Initialize the POSIX.1b sysconf information appropriately for non-optional kernel functions.
2000-04-22 16:13:06 +01:00
}
SYSINIT(p31b_set_standard, SI_SUB_P1003_1B, SI_ORDER_ANY, p31b_set_standard,
0);
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