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authorRoland McGrath <roland@gnu.org>1996-04-28 18:25:22 +0000
committerRoland McGrath <roland@gnu.org>1996-04-28 18:25:22 +0000
commit7b3547eb0fb471e1f2135f709eb53d79a45838cb (patch)
tree5ec64c900d89bf836e82d439f0c150ce8f00fa2b /posix
parentb1794a285fcdb09129bbd9d984f45278822637ba (diff)
downloadglibc-7b3547eb0fb471e1f2135f709eb53d79a45838cb.tar.gz
Sun Apr 28 14:14:35 1996 Roland McGrath <roland@delasyd.gnu.ai.mit.edu>
* sysdeps/unix/sysv/linux/i386/Makefile: New file. Wed Apr 24 17:35:30 Ulrich Drepper <drepper@cygnus.com> * inet/netinet/in.h, socket/sys/socket.h: Move to sysdeps/generic/netinet/in.h, sysdeps/generic/sys/socket.h. * netinet/in.h, sys/socket.h: Remove file. * misc/Makefile (routines): Add fdatasync. * posix/Makefile (headers): Add sched.h. (routines): Add nanosleep, sched_setp, sched_getp, sched_sets, sched_gets, sched_yield, sched_primax, sched_primin, sched_rr_gi. * posix/getconf.c (vars): Add entries for _POSIX_REALTIME_SIGNALS, _POSIX_PRIORITY_SCHEDULING, _POSIX_TIMERS, _POSIX_ASYNCHRONOUS_IO, _POSIX_PRIORITIZED_IO, _POSIX_SYNCHRONIZED_IO, _POSIX_FSYNC, _POSIX_MAPPED_FILES, _POSIX_MEMLOCK, _POSIX_MEMLOCK_RANGE, _POSIX_MEMORY_PROTECTION, _POSIX_MESSAGE_PASSING, _POSIX_SEMAPHORES, _POSIX_SHARED_MEMORY_OBJECTS. * posix/sched.h: New file. Header for POSIX scheduling interface. * posix/unistd.h: Describe options from POSIX.4. Add declaration of fdatasync. * sysdeps/generic/confname.h: Add definition for _SC_REALTIME_SIGNALS, _SC_PRIORITY_SCHEDULING, _SC_TIMERS, _SC_ASYNCHRONOUS_IO, _SC_PRIORITIZED_IO, _SC_SYNCHRONIZED_IO, _SC_FSYNC, _SC_MAPPED_FILES, _SC_MEMLOCK, _SC_MEMLOCK_RANGE, _SC_MEMORY_PROTECTION, _SC_MESSAGE_PASSING, _SC_SEMAPHORES, _SC_SHARED_MEMORY_OBJECTS. * sysdeps/generic/fdatasync.c: New file. Default implementation simply uses fsync. * sysdeps/generic/netinit/in.h: Moved to here from inet/netinet/in.h. * sysdeps/generic/schedbits.h: New file. System dependent defintion for POSIX.4 scheduling interface. * sysdeps/generic/sys/socket.h: Moved to here from socket/sys/socket.h. * sysdeps/stub/nanosleep.c, sysdeps/stub/sched_getp.c, sysdeps/stub/sched_gets.c, sysdeps/stub/sched_primax.c, sysdeps/stub/sched_primin.c, sysdeps/stub/sched_rr_gi.c, sysdeps/stub/sched_setp.c, sysdeps/stub/sched_sets.c, sysdeps/stub/sched_yield.c: New file: Stub implementation for systems missing these POSIX.4 system calls. * sysdeps/unix/sysv/linux/gnu/types.h, sysdeps/unix/sysv/linux/ioctls.h: Use kernel header for data type definitions. * sysdeps/unix/sysv/linux/netinet/in.h: New file. Linux specific version. * sysdeps/unix/sysv/linux/posix_opt.h: New file. Define POSIX options applicable for Linux. * sysdeps/unix/sysv/linux/syscalls.list: Add definitions for fdatasync, nanosleep, sched_setparam, sched_getparam, sched_setscheduler, sched_getscheduler, sched_yield, sched_get_priority_max, sched_get_priority_min, and sched_rr_get_interval. * sysdeps/unix/sysv/linux/sysconf.c: Add handling of POSIX.4 options. * sysdeps/unix/sysv/linux/termbits.h: Use kernel headers. * time/sys/time.h: Remove definition of `struct timespec'. * time/time.h (struct timespec): Move definition to here. variable, LUCKY, to use instead of setting D to -1 (which fouls
Diffstat (limited to 'posix')
-rw-r--r--posix/Makefile16
-rw-r--r--posix/getconf.c16
-rw-r--r--posix/sched.h72
-rw-r--r--posix/unistd.h26
4 files changed, 120 insertions, 10 deletions
diff --git a/posix/Makefile b/posix/Makefile
index 052c17c21c..8c7ac92bc4 100644
--- a/posix/Makefile
+++ b/posix/Makefile
@@ -21,10 +21,11 @@
#
subdir := posix
-headers := sys/utsname.h sys/times.h sys/wait.h sys/types.h unistd.h \
- glob.h regex.h wordexp.h fnmatch.h gnu/types.h getopt.h \
- posix1_lim.h posix2_lim.h posix_opt.h local_lim.h tar.h \
- utsnamelen.h confname.h waitflags.h waitstatus.h sys/unistd.h
+headers := sys/utsname.h sys/times.h sys/wait.h sys/types.h unistd.h \
+ glob.h regex.h wordexp.h fnmatch.h gnu/types.h getopt.h \
+ posix1_lim.h posix2_lim.h posix_opt.h local_lim.h tar.h \
+ utsnamelen.h confname.h waitflags.h waitstatus.h sys/unistd.h \
+ sched.h
distribute := confstr.h
@@ -32,7 +33,7 @@ routines := \
uname \
times \
wait waitpid wait3 wait4 \
- alarm sleep pause \
+ alarm sleep pause nanosleep \
fork vfork _exit \
execve fexecve execv execle execl execvp execlp \
getpid getppid \
@@ -42,7 +43,10 @@ routines := \
pathconf sysconf fpathconf \
glob fnmatch regex \
confstr \
- getopt getopt1
+ getopt getopt1 \
+ sched_setp sched_getp sched_sets sched_gets sched_yield sched_primax \
+ sched_primin sched_rr_gi
+
aux := init-posix environ
tests := tstgetopt testfnm
others := getconf
diff --git a/posix/getconf.c b/posix/getconf.c
index 7423a77225..bf13fb447d 100644
--- a/posix/getconf.c
+++ b/posix/getconf.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991, 1992, 1995 Free Software Foundation, Inc.
+/* Copyright (C) 1991, 1992, 1995, 1996 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
@@ -49,6 +49,20 @@ static struct conf vars[] =
{ "OPEN_MAX", _SC_OPEN_MAX, SYSCONF },
{ "_POSIX_JOB_CONTROL", _SC_JOB_CONTROL, SYSCONF },
{ "_POSIX_SAVED_IDS", _SC_SAVED_IDS, SYSCONF },
+ { "_POSIX_REALTIME_SIGNALS", _SC_REALTIME_SIGNALS, SYSCONF },
+ { "_POSIX_PRIORITY_SCHEDULING", _SC_PRIORITY_SCHEDULING, SYSCONF },
+ { "_POSIX_TIMERS", _SC_TIMERS, SYSCONF },
+ { "_POSIX_ASYNCHRONOUS_IO", _SC_ASYNCHRONOUS_IO, SYSCONF },
+ { "_POSIX_PRIORITIZED_IO", _SC_PRIORITIZED_IO, SYSCONF },
+ { "_POSIX_SYNCHRONIZED_IO", _SC_SYNCHRONIZED_IO, SYSCONF },
+ { "_POSIX_FSYNC", _SC_FSYNC, SYSCONF },
+ { "_POSIX_MAPPED_FILES", _SC_MAPPED_FILES, SYSCONF },
+ { "_POSIX_MEMLOCK", _SC_MEMLOCK, SYSCONF },
+ { "_POSIX_MEMLOCK_RANGE", _SC_MEMLOCK_RANGE, SYSCONF },
+ { "_POSIX_MEMORY_PROTECTION", _SC_MEMORY_PROTECTION, SYSCONF },
+ { "_POSIX_MESSAGE_PASSING", _SC_MESSAGE_PASSING, SYSCONF },
+ { "_POSIX_SEMAPHORES", _SC_SEMAPHORES, SYSCONF },
+ { "_POSIX_SHARED_MEMORY_OBJECTS", _SC_SHARED_MEMORY_OBJECTS, SYSCONF },
{ "_POSIX_VERSION", _SC_VERSION, SYSCONF },
{ "PATH", _CS_PATH, CONFSTR },
diff --git a/posix/sched.h b/posix/sched.h
new file mode 100644
index 0000000000..026a5e2f20
--- /dev/null
+++ b/posix/sched.h
@@ -0,0 +1,72 @@
+/* Definitions for POSIX 1003.1b-1993 (aka POSIX.4) scheduling interface.
+Copyright (C) 1996 Free Software Foundation, Inc.
+This file is part of the GNU C Library.
+
+The GNU C Library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Library General Public License as
+published by the Free Software Foundation; either version 2 of the
+License, or (at your option) any later version.
+
+The GNU C Library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Library General Public License for more details.
+
+You should have received a copy of the GNU Library General Public
+License along with the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+#ifndef _SCHED_H
+#define _SCHED_H 1
+
+#include <features.h>
+
+/* Get type definitions. */
+#include <gnu/types.h>
+#include <sys/time.h> /* for struct timespec */
+
+/* Get system specific constant and data structure definitions. */
+#include <schedbits.h>
+
+__BEGIN_DECLS
+
+/* Set scheduling parameters for a process. */
+extern int __sched_setparam __P ((__pid_t __pid,
+ __const struct sched_param *__param));
+extern int sched_setparam __P ((__pid_t __pid,
+ __const struct sched_param *__param));
+
+/* Retrieve scheduling parameters for a particular process. */
+extern int __sched_getparam __P ((__pid_t __pid, struct sched_param *__param));
+extern int sched_getparam __P ((__pid_t __pid, struct sched_param *__param));
+
+/* Set scheduling algorithm and/or parameters for a process. */
+extern int __sched_setscheduler __P ((__pid_t __pid, int __policy,
+ __const struct sched_param *__param));
+extern int sched_setscheduler __P ((__pid_t __pid, int __policy,
+ __const struct sched_param *__param));
+
+/* Retrieve scheduling algorithm for a particular purpose. */
+extern int __sched_getscheduler __P ((__pid_t __pid));
+extern int sched_getscheduler __P ((__pid_t __pid));
+
+/* Yield the processor. */
+extern int __sched_yield __P ((void));
+extern int sched_yield __P ((void));
+
+/* Get maximum priority value for a scheduler. */
+extern int __sched_get_priority_max __P ((int __algorithm));
+extern int sched_get_priority_max __P ((int __algorithm));
+
+/* Get minimum priority value for a scheduler. */
+extern int __sched_get_priority_min __P ((int __algorithm));
+extern int sched_get_priority_min __P ((int __algorithm));
+
+/* Get the SCHED_RR interval for the named process. */
+extern int __sched_rr_get_interval __P ((__pid_t __pid, struct timespec *__t));
+extern int sched_rr_get_interval __P ((__pid_t __pid, struct timespec *__t));
+
+__END_DECLS
+
+#endif /* sched.h */
diff --git a/posix/unistd.h b/posix/unistd.h
index 0fc3d7bb92..6818699104 100644
--- a/posix/unistd.h
+++ b/posix/unistd.h
@@ -61,9 +61,23 @@ __BEGIN_DECLS
always available. If not, they may be available sometimes.
The current values can be obtained with `sysconf'.
- _POSIX_JOB_CONTROL Job control is supported.
- _POSIX_SAVED_IDS Processes have a saved set-user-ID
- and a saved set-group-ID.
+ _POSIX_JOB_CONTROL Job control is supported.
+ _POSIX_SAVED_IDS Processes have a saved set-user-ID
+ and a saved set-group-ID.
+ _POSIX_REALTIME_SIGNALS Real-time, queued signals are supported.
+ _POSIX_PRIORITY_SCHEDULING Priority scheduling is supported.
+ _POSIX_TIMERS POSIX.4 clocks and timers are supported.
+ _POSIX_ASYNCHRONOUS_IO Asynchronous I/O is supported.
+ _POSIX_PRIORITIZED_IO Prioritized asynchronous I/O is supported.
+ _POSIX_SYNCHRONIZED_IO Synchronizing file data is supported.
+ _POSIX_FSYNC The fsync function is present.
+ _POSIX_MAPPED_FILES Mapping of files to memory is supported.
+ _POSIX_MEMLOCK Locking of all memory is supported.
+ _POSIX_MEMLOCK_RANGE Locking of ranges of memory is supported.
+ _POSIX_MEMORY_PROTECTION Setting of memory protections is supported.
+ _POSIX_MESSAGE_PASSING POSIX.4 message queues are supported.
+ _POSIX_SEMAPHORES POSIX.4 counting semaphores are supported.
+ _POSIX_SHARED_MEMORY_OBJECTS POSIX.4 shared memory objects are supported.
If any of these symbols is defined as -1, the corresponding option is not
true for any file. If any is defined as other than -1, the corresponding
@@ -732,6 +746,12 @@ extern int lockf __P ((int __fd, int __cmd, __off_t __len));
#endif
+#ifdef __USE_POSIX
+/* Synchronize at least the data part of a file with the underlying
+ media. */
+extern int fdatasync __P ((int __fildes));
+#endif /* Use POSIX */
+
__END_DECLS
#endif /* unistd.h */