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Diffstat (limited to 'src/test/test-rlimit-util.c')
| -rw-r--r-- | src/test/test-rlimit-util.c | 116 |
1 files changed, 116 insertions, 0 deletions
diff --git a/src/test/test-rlimit-util.c b/src/test/test-rlimit-util.c new file mode 100644 index 0000000000..6d5733b03d --- /dev/null +++ b/src/test/test-rlimit-util.c @@ -0,0 +1,116 @@ +/*** + This file is part of systemd + + 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 <sys/resource.h> + +#include "systemd-basic/alloc-util.h" +#include "systemd-basic/capability-util.h" +#include "systemd-basic/macro.h" +#include "systemd-basic/rlimit-util.h" +#include "systemd-basic/string-util.h" +#include "systemd-basic/util.h" + +static void test_rlimit_parse_format(int resource, const char *string, rlim_t soft, rlim_t hard, int ret, const char *formatted) { + _cleanup_free_ char *f = NULL; + struct rlimit rl = { + .rlim_cur = 4711, + .rlim_max = 4712, + }, rl2 = { + .rlim_cur = 4713, + .rlim_max = 4714 + }; + + assert_se(rlimit_parse(resource, string, &rl) == ret); + if (ret < 0) + return; + + assert_se(rl.rlim_cur == soft); + assert_se(rl.rlim_max == hard); + + assert_se(rlimit_format(&rl, &f) >= 0); + assert_se(streq(formatted, f)); + + assert_se(rlimit_parse(resource, formatted, &rl2) >= 0); + assert_se(memcmp(&rl, &rl2, sizeof(struct rlimit)) == 0); +} + +int main(int argc, char *argv[]) { + struct rlimit old, new, high; + struct rlimit err = { + .rlim_cur = 10, + .rlim_max = 5, + }; + + log_parse_environment(); + log_open(); + + assert_se(drop_capability(CAP_SYS_RESOURCE) == 0); + + assert_se(getrlimit(RLIMIT_NOFILE, &old) == 0); + new.rlim_cur = MIN(5U, old.rlim_max); + new.rlim_max = old.rlim_max; + assert_se(setrlimit(RLIMIT_NOFILE, &new) >= 0); + + assert_se(rlimit_from_string("LimitNOFILE") == RLIMIT_NOFILE); + assert_se(rlimit_from_string("DefaultLimitNOFILE") == -1); + + assert_se(streq_ptr(rlimit_to_string(RLIMIT_NOFILE), "LimitNOFILE")); + assert_se(rlimit_to_string(-1) == NULL); + + assert_se(getrlimit(RLIMIT_NOFILE, &old) == 0); + assert_se(setrlimit_closest(RLIMIT_NOFILE, &old) == 0); + assert_se(getrlimit(RLIMIT_NOFILE, &new) == 0); + assert_se(old.rlim_cur == new.rlim_cur); + assert_se(old.rlim_max == new.rlim_max); + + assert_se(getrlimit(RLIMIT_NOFILE, &old) == 0); + high = RLIMIT_MAKE_CONST(old.rlim_max == RLIM_INFINITY ? old.rlim_max : old.rlim_max + 1); + assert_se(setrlimit_closest(RLIMIT_NOFILE, &high) == 0); + assert_se(getrlimit(RLIMIT_NOFILE, &new) == 0); + assert_se(new.rlim_max == old.rlim_max); + assert_se(new.rlim_cur == new.rlim_max); + + assert_se(getrlimit(RLIMIT_NOFILE, &old) == 0); + assert_se(setrlimit_closest(RLIMIT_NOFILE, &err) == -EINVAL); + assert_se(getrlimit(RLIMIT_NOFILE, &new) == 0); + assert_se(old.rlim_cur == new.rlim_cur); + assert_se(old.rlim_max == new.rlim_max); + + test_rlimit_parse_format(RLIMIT_NOFILE, "4:5", 4, 5, 0, "4:5"); + test_rlimit_parse_format(RLIMIT_NOFILE, "6", 6, 6, 0, "6"); + test_rlimit_parse_format(RLIMIT_NOFILE, "infinity", RLIM_INFINITY, RLIM_INFINITY, 0, "infinity"); + test_rlimit_parse_format(RLIMIT_NOFILE, "infinity:infinity", RLIM_INFINITY, RLIM_INFINITY, 0, "infinity"); + test_rlimit_parse_format(RLIMIT_NOFILE, "8:infinity", 8, RLIM_INFINITY, 0, "8:infinity"); + test_rlimit_parse_format(RLIMIT_CPU, "25min:13h", (25*USEC_PER_MINUTE) / USEC_PER_SEC, (13*USEC_PER_HOUR) / USEC_PER_SEC, 0, "1500:46800"); + test_rlimit_parse_format(RLIMIT_NOFILE, "", 0, 0, -EINVAL, NULL); + test_rlimit_parse_format(RLIMIT_NOFILE, "5:4", 0, 0, -EILSEQ, NULL); + test_rlimit_parse_format(RLIMIT_NOFILE, "5:4:3", 0, 0, -EINVAL, NULL); + test_rlimit_parse_format(RLIMIT_NICE, "20", 20, 20, 0, "20"); + test_rlimit_parse_format(RLIMIT_NICE, "40", 40, 40, 0, "40"); + test_rlimit_parse_format(RLIMIT_NICE, "41", 41, 41, -ERANGE, "41"); + test_rlimit_parse_format(RLIMIT_NICE, "0", 0, 0, 0, "0"); + test_rlimit_parse_format(RLIMIT_NICE, "-7", 27, 27, 0, "27"); + test_rlimit_parse_format(RLIMIT_NICE, "-20", 40, 40, 0, "40"); + test_rlimit_parse_format(RLIMIT_NICE, "-21", 41, 41, -ERANGE, "41"); + test_rlimit_parse_format(RLIMIT_NICE, "-0", 20, 20, 0, "20"); + test_rlimit_parse_format(RLIMIT_NICE, "+7", 13, 13, 0, "13"); + test_rlimit_parse_format(RLIMIT_NICE, "+19", 1, 1, 0, "1"); + test_rlimit_parse_format(RLIMIT_NICE, "+20", 0, 0, -ERANGE, "0"); + test_rlimit_parse_format(RLIMIT_NICE, "+0", 20, 20, 0, "20"); + + return 0; +} |