diff options
| -rw-r--r-- | ChangeLog | 13 | ||||
| -rw-r--r-- | posix/Makefile | 4 | ||||
| -rw-r--r-- | posix/Versions | 3 | ||||
| -rw-r--r-- | posix/sched_cpualloc.c | 27 | ||||
| -rw-r--r-- | posix/sched_cpufree.c | 27 | ||||
| -rw-r--r-- | posix/tst-cpuset.c | 82 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/sched.h | 57 |
7 files changed, 200 insertions, 13 deletions
diff --git a/ChangeLog b/ChangeLog index 9048743231..59fbdab24a 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,16 @@ +2007-07-29 Ulrich Drepper <drepper@redhat.com> + + * posix/Makefile (routines): Add sched_cpualloc and sched_cpufree. + (tests): Add tst-cpuset. + * posix/sched_cpualloc.c: New file. + * posix/sched_cpufree.c: New file. + * posix/tst-cpuset.c: New file. + * posix/Versions: Export __sched_cpualloc and __sched_cpufree for + GLIBC_2.7. + * sysdeps/unix/sysv/linux/bits/sched.h: Define __CPU_*_S macros. + * posix/sched.h: Define old CPU_* macros in temers of __CPU_*_S + macros. Define CPU_*_S macros. + 2007-07-28 Ulrich Drepper <drepper@redhat.com> * posix/getconf.c (vars): Add missing _SC_LEVEL4_CACHE_LINESIZE diff --git a/posix/Makefile b/posix/Makefile index 010ab2d3d0..1a1d2bc119 100644 --- a/posix/Makefile +++ b/posix/Makefile @@ -66,7 +66,7 @@ routines := \ spawnattr_getsigmask spawnattr_getschedpolicy spawnattr_getschedparam \ spawnattr_setsigmask spawnattr_setschedpolicy spawnattr_setschedparam \ posix_madvise \ - get_child_max sched_cpucount + get_child_max sched_cpucount sched_cpualloc sched_cpufree include ../Makeconfig @@ -90,7 +90,7 @@ tests := tstgetopt testfnm runtests runptests \ tst-execv1 tst-execv2 tst-execl1 tst-execl2 \ tst-execve1 tst-execve2 tst-execle1 tst-execle2 \ tst-execvp3 tst-execvp4 tst-rfc3484 tst-rfc3484-2 \ - tst-getaddrinfo3 tst-fnmatch2 tst-cpucount + tst-getaddrinfo3 tst-fnmatch2 tst-cpucount tst-cpuset xtests := bug-ga2 ifeq (yes,$(build-shared)) test-srcs := globtest diff --git a/posix/Versions b/posix/Versions index 1e1bda8b7b..f73ff4a85a 100644 --- a/posix/Versions +++ b/posix/Versions @@ -125,6 +125,9 @@ libc { GLIBC_2.6 { __sched_cpucount; } + GLIBC_2.7 { + __sched_cpualloc; __sched_cpufree; + } GLIBC_PRIVATE { __libc_fork; __libc_pwrite; } diff --git a/posix/sched_cpualloc.c b/posix/sched_cpualloc.c new file mode 100644 index 0000000000..2642a80109 --- /dev/null +++ b/posix/sched_cpualloc.c @@ -0,0 +1,27 @@ +/* Copyright (C) 2007 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sched.h> +#include <stdlib.h> + + +cpu_set_t * +__sched_cpualloc (size_t count) +{ + return malloc (CPU_ALLOC_SIZE (count)); +} diff --git a/posix/sched_cpufree.c b/posix/sched_cpufree.c new file mode 100644 index 0000000000..dd4c6131d7 --- /dev/null +++ b/posix/sched_cpufree.c @@ -0,0 +1,27 @@ +/* Copyright (C) 2007 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 Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sched.h> +#include <stdlib.h> + + +void +__sched_cpufree (cpu_set_t *set) +{ + free (set); +} diff --git a/posix/tst-cpuset.c b/posix/tst-cpuset.c new file mode 100644 index 0000000000..d736793222 --- /dev/null +++ b/posix/tst-cpuset.c @@ -0,0 +1,82 @@ +#include <sched.h> +#include <stdio.h> + +static int +do_test (void) +{ + int result = 0; + + cpu_set_t s1; + cpu_set_t s2; + cpu_set_t s3; + + CPU_ZERO (&s1); + CPU_SET (0, &s1); + + CPU_ZERO (&s2); + CPU_SET (0, &s2); + CPU_SET (1, &s2); + + CPU_AND (&s3, &s1, &s2); + if (! CPU_EQUAL (&s3, &s1)) + { + puts ("result of CPU_AND wrong"); + result = 1; + } + + CPU_OR (&s3, &s1, &s2); + if (! CPU_EQUAL (&s3, &s2)) + { + puts ("result of CPU_OR wrong"); + result = 1; + } + + CPU_XOR (&s3, &s1, &s2); + if (CPU_COUNT (&s3) != 1) + { + puts ("result of CPU_XOR wrong"); + result = 1; + } + + cpu_set_t *vs1 = CPU_ALLOC (2048); + cpu_set_t *vs2 = CPU_ALLOC (2048); + cpu_set_t *vs3 = CPU_ALLOC (2048); + size_t vssize = CPU_ALLOC_SIZE (2048); + + CPU_ZERO_S (vssize, vs1); + CPU_SET_S (0, vssize, vs1); + + CPU_ZERO_S (vssize, vs2); + CPU_SET_S (0, vssize, vs2); + CPU_SET_S (2047, vssize, vs2); + + CPU_AND_S (vssize, vs3, vs1, vs2); + if (! CPU_EQUAL_S (vssize, vs3, vs1)) + { + puts ("result of CPU_AND_S wrong"); + result = 1; + } + + CPU_OR_S (vssize, vs3, vs1, vs2); + if (! CPU_EQUAL_S (vssize, vs3, vs2)) + { + puts ("result of CPU_OR_S wrong"); + result = 1; + } + + CPU_XOR_S (vssize, vs3, vs1, vs2); + if (CPU_COUNT_S (vssize, vs3) != 1) + { + puts ("result of CPU_XOR_S wrong"); + result = 1; + } + + CPU_FREE (vs1); + CPU_FREE (vs2); + CPU_FREE (vs3); + + return result; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" diff --git a/sysdeps/unix/sysv/linux/bits/sched.h b/sysdeps/unix/sysv/linux/bits/sched.h index d3c21ae3a2..b19822c4a3 100644 --- a/sysdeps/unix/sysv/linux/bits/sched.h +++ b/sysdeps/unix/sysv/linux/bits/sched.h @@ -118,27 +118,62 @@ typedef struct } cpu_set_t; /* Access functions for CPU masks. */ -# define __CPU_ZERO(cpusetp) \ +# define __CPU_ZERO_S(setsize, cpusetp) \ do { \ - unsigned int __i; \ + size_t __i; \ + size_t __imax = (setsize) / sizeof (__cpu_mask); \ cpu_set_t *__arr = (cpusetp); \ - for (__i = 0; __i < sizeof (cpu_set_t) / sizeof (__cpu_mask); ++__i) \ + for (__i = 0; __i < __imax; ++__i) \ __arr->__bits[__i] = 0; \ } while (0) -# define __CPU_SET(cpu, cpusetp) \ - ((cpusetp)->__bits[__CPUELT (cpu)] |= __CPUMASK (cpu)) -# define __CPU_CLR(cpu, cpusetp) \ - ((cpusetp)->__bits[__CPUELT (cpu)] &= ~__CPUMASK (cpu)) -# define __CPU_ISSET(cpu, cpusetp) \ - (((cpusetp)->__bits[__CPUELT (cpu)] & __CPUMASK (cpu)) != 0) +# define __CPU_SET_S(cpu, setsize, cpusetp) \ + ({ size_t __cpu = (cpu); \ + __cpu < 8 * (setsize) \ + ? ((cpusetp)->__bits[__CPUELT (__cpu)] |= __CPUMASK (__cpu)) : 0; }) +# define __CPU_CLR_S(cpu, setsize, cpusetp) \ + ({ size_t __cpu = (cpu); \ + __cpu < 8 * (setsize) \ + ? ((cpusetp)->__bits[__CPUELT (__cpu)] &= ~__CPUMASK (__cpu)) : 0; }) +# define __CPU_ISSET_S(cpu, setsize, cpusetp) \ + ({ size_t __cpu = (cpu); \ + __cpu < 8 * (setsize) \ + ? (((cpusetp)->__bits[__CPUELT (__cpu)] & __CPUMASK (__cpu))) != 0 : 0; }) + +# define __CPU_COUNT_S(setsize, cpusetp) \ + __sched_cpucount (setsize, cpusetp) + +# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \ + ({ cpu_set_t *__arr1 = (cpusetp1); \ + cpu_set_t *__arr2 = (cpusetp2); \ + size_t __imax = (setsize) / sizeof (__cpu_mask); \ + size_t __i; \ + for (__i = 0; __i < __imax; ++__i) \ + if (__arr1->__bits[__i] != __arr2->__bits[__i]) \ + break; \ + __i == __imax; }) + +# define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \ + ({ cpu_set_t *__dest = (destset); \ + cpu_set_t *__arr1 = (srcset1); \ + cpu_set_t *__arr2 = (srcset2); \ + size_t __imax = (setsize) / sizeof (__cpu_mask); \ + size_t __i; \ + for (__i = 0; __i < __imax; ++__i) \ + __dest->__bits[__i] = __arr1->__bits[__i] op __arr2->__bits[__i]; \ + __dest; }) + +# define __CPU_ALLOC_SIZE(count) \ + ((((count) + __NCPUBITS - 1) / __NCPUBITS) * 8) +# define __CPU_ALLOC(count) __sched_cpualloc (count) +# define __CPU_FREE(cpuset) __sched_cpufree (cpuset) __BEGIN_DECLS extern int __sched_cpucount (size_t __setsize, const cpu_set_t *__setp) __THROW; +extern cpu_set_t *__sched_cpualloc (size_t __count) __THROW __wur; +extern void __sched_cpufree (cpu_set_t *__set) __THROW; __END_DECLS -# define __CPU_COUNT(cpusetp) \ - __sched_cpucount (sizeof (cpu_set_t), cpusetp) #endif |