diff options
Diffstat (limited to 'src/basic/cpu-set-util.c')
-rw-r--r-- | src/basic/cpu-set-util.c | 114 |
1 files changed, 0 insertions, 114 deletions
diff --git a/src/basic/cpu-set-util.c b/src/basic/cpu-set-util.c deleted file mode 100644 index 95ed6928ff..0000000000 --- a/src/basic/cpu-set-util.c +++ /dev/null @@ -1,114 +0,0 @@ -/*** - This file is part of systemd. - - Copyright 2010-2015 Lennart Poettering - Copyright 2015 Filipe Brandenburger - - systemd 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. - - systemd 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 systemd; If not, see <http://www.gnu.org/licenses/>. -***/ - -#include <errno.h> -#include <stddef.h> -#include <syslog.h> - -#include "alloc-util.h" -#include "cpu-set-util.h" -#include "extract-word.h" -#include "log.h" -#include "macro.h" -#include "parse-util.h" -#include "string-util.h" - -cpu_set_t* cpu_set_malloc(unsigned *ncpus) { - cpu_set_t *c; - unsigned n = 1024; - - /* Allocates the cpuset in the right size */ - - for (;;) { - c = CPU_ALLOC(n); - if (!c) - return NULL; - - if (sched_getaffinity(0, CPU_ALLOC_SIZE(n), c) >= 0) { - CPU_ZERO_S(CPU_ALLOC_SIZE(n), c); - - if (ncpus) - *ncpus = n; - - return c; - } - - CPU_FREE(c); - - if (errno != EINVAL) - return NULL; - - n *= 2; - } -} - -int parse_cpu_set_and_warn( - const char *rvalue, - cpu_set_t **cpu_set, - const char *unit, - const char *filename, - unsigned line, - const char *lvalue) { - - const char *whole_rvalue = rvalue; - _cleanup_cpu_free_ cpu_set_t *c = NULL; - unsigned ncpus = 0; - - assert(lvalue); - assert(rvalue); - - for (;;) { - _cleanup_free_ char *word = NULL; - unsigned cpu, cpu_lower, cpu_upper; - int r; - - r = extract_first_word(&rvalue, &word, WHITESPACE ",", EXTRACT_QUOTES); - if (r < 0) - return log_syntax(unit, LOG_ERR, filename, line, r, "Invalid value for %s: %s", lvalue, whole_rvalue); - if (r == 0) - break; - - if (!c) { - c = cpu_set_malloc(&ncpus); - if (!c) - return log_oom(); - } - - r = parse_range(word, &cpu_lower, &cpu_upper); - if (r < 0) - return log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse CPU affinity '%s'", word); - if (cpu_lower >= ncpus || cpu_upper >= ncpus) - return log_syntax(unit, LOG_ERR, filename, line, EINVAL, "CPU out of range '%s' ncpus is %u", word, ncpus); - - if (cpu_lower > cpu_upper) - log_syntax(unit, LOG_WARNING, filename, line, 0, "Range '%s' is invalid, %u > %u", word, cpu_lower, cpu_upper); - else - for (cpu = cpu_lower; cpu <= cpu_upper; cpu++) - CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c); - } - - /* On success, sets *cpu_set and returns ncpus for the system. */ - if (c) { - *cpu_set = c; - c = NULL; - } - - return (int) ncpus; -} |