+/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
***/
#include <errno.h>
-#include <fcntl.h>
#include <string.h>
-#include <sys/types.h>
#include <sys/wait.h>
-#include <sys/xattr.h>
#include <unistd.h>
-#include "alloc-util.h"
#include "def.h"
-#include "fd-util.h"
#include "fileio.h"
#include "fs-util.h"
-#include "mkdir.h"
#include "parse-util.h"
-#include "path-util.h"
-#include "process-util.h"
+#include "raw-clone.h"
#include "rm-rf.h"
-#include "special.h"
#include "string-util.h"
-#include "strv.h"
#include "util.h"
-#include "virt.h"
-#include "xattr-util.h"
static void test_align_power2(void) {
unsigned long i, p2;
assert_se(CLAMP(CLAMP(0, -10, 10), CLAMP(-5, 10, 20), CLAMP(100, -5, 20)) == 10);
}
+#pragma GCC diagnostic push
+#ifdef __clang__
+# pragma GCC diagnostic ignored "-Waddress-of-packed-member"
+#endif
+
static void test_container_of(void) {
struct mytype {
uint8_t pad1[3];
v1) == &myval);
}
+#pragma GCC diagnostic pop
+
static void test_div_round_up(void) {
int div;
assert_se(log2i(INT_MAX) == sizeof(int)*8-2);
}
-static void test_execute_directory(void) {
- char template_lo[] = "/tmp/test-readlink_and_make_absolute-lo.XXXXXXX";
- char template_hi[] = "/tmp/test-readlink_and_make_absolute-hi.XXXXXXX";
- const char * dirs[] = {template_hi, template_lo, NULL};
- const char *name, *name2, *name3, *overridden, *override, *masked, *mask;
-
- assert_se(mkdtemp(template_lo));
- assert_se(mkdtemp(template_hi));
-
- name = strjoina(template_lo, "/script");
- name2 = strjoina(template_hi, "/script2");
- name3 = strjoina(template_lo, "/useless");
- overridden = strjoina(template_lo, "/overridden");
- override = strjoina(template_hi, "/overridden");
- masked = strjoina(template_lo, "/masked");
- mask = strjoina(template_hi, "/masked");
-
- assert_se(write_string_file(name, "#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/it_works", WRITE_STRING_FILE_CREATE) == 0);
- assert_se(write_string_file(name2, "#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/it_works2", WRITE_STRING_FILE_CREATE) == 0);
- assert_se(write_string_file(overridden, "#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/failed", WRITE_STRING_FILE_CREATE) == 0);
- assert_se(write_string_file(override, "#!/bin/sh\necho 'Executing '$0", WRITE_STRING_FILE_CREATE) == 0);
- assert_se(write_string_file(masked, "#!/bin/sh\necho 'Executing '$0\ntouch $(dirname $0)/failed", WRITE_STRING_FILE_CREATE) == 0);
- assert_se(symlink("/dev/null", mask) == 0);
- assert_se(chmod(name, 0755) == 0);
- assert_se(chmod(name2, 0755) == 0);
- assert_se(chmod(overridden, 0755) == 0);
- assert_se(chmod(override, 0755) == 0);
- assert_se(chmod(masked, 0755) == 0);
- assert_se(touch(name3) >= 0);
-
- execute_directories(dirs, DEFAULT_TIMEOUT_USEC, NULL);
-
- assert_se(chdir(template_lo) == 0);
- assert_se(access("it_works", F_OK) >= 0);
- assert_se(access("failed", F_OK) < 0);
-
- assert_se(chdir(template_hi) == 0);
- assert_se(access("it_works2", F_OK) >= 0);
- assert_se(access("failed", F_OK) < 0);
-
- (void) rm_rf(template_lo, REMOVE_ROOT|REMOVE_PHYSICAL);
- (void) rm_rf(template_hi, REMOVE_ROOT|REMOVE_PHYSICAL);
-}
-
static void test_raw_clone(void) {
pid_t parent, pid, pid2;
log_info("before clone: getpid()→"PID_FMT, parent);
assert_se(raw_getpid() == parent);
- pid = raw_clone(0, NULL);
+ pid = raw_clone(0);
assert_se(pid >= 0);
pid2 = raw_getpid();
}
}
-static void test_fgetxattrat_fake(void) {
- char t[] = "/var/tmp/xattrtestXXXXXX";
- _cleanup_close_ int fd = -1;
- const char *x;
- char v[3] = {};
- int r;
+static void test_physical_memory(void) {
+ uint64_t p;
+ char buf[FORMAT_BYTES_MAX];
+
+ p = physical_memory();
+ assert_se(p > 0);
+ assert_se(p < UINT64_MAX);
+ assert_se(p % page_size() == 0);
+
+ log_info("Memory: %s (%" PRIu64 ")", format_bytes(buf, sizeof(buf), p), p);
+}
+
+static void test_physical_memory_scale(void) {
+ uint64_t p;
+
+ p = physical_memory();
+
+ assert_se(physical_memory_scale(0, 100) == 0);
+ assert_se(physical_memory_scale(100, 100) == p);
+
+ log_info("Memory original: %" PRIu64, physical_memory());
+ log_info("Memory scaled by 50%%: %" PRIu64, physical_memory_scale(50, 100));
+ log_info("Memory divided by 2: %" PRIu64, physical_memory() / 2);
+ log_info("Page size: %zu", page_size());
+
+ /* There might be an uneven number of pages, hence permit these calculations to be half a page off... */
+ assert_se(page_size()/2 + physical_memory_scale(50, 100) - p/2 <= page_size());
+ assert_se(physical_memory_scale(200, 100) == p*2);
+
+ assert_se(physical_memory_scale(0, 1) == 0);
+ assert_se(physical_memory_scale(1, 1) == p);
+ assert_se(physical_memory_scale(2, 1) == p*2);
+
+ assert_se(physical_memory_scale(0, 2) == 0);
+
+ assert_se(page_size()/2 + physical_memory_scale(1, 2) - p/2 <= page_size());
+ assert_se(physical_memory_scale(2, 2) == p);
+ assert_se(physical_memory_scale(4, 2) == p*2);
+
+ assert_se(physical_memory_scale(0, UINT32_MAX) == 0);
+ assert_se(physical_memory_scale(UINT32_MAX, UINT32_MAX) == p);
+
+ /* overflow */
+ assert_se(physical_memory_scale(UINT64_MAX/4, UINT64_MAX) == UINT64_MAX);
+}
+
+static void test_system_tasks_max(void) {
+ uint64_t t;
+
+ t = system_tasks_max();
+ assert_se(t > 0);
+ assert_se(t < UINT64_MAX);
+
+ log_info("Max tasks: %" PRIu64, t);
+}
+
+static void test_system_tasks_max_scale(void) {
+ uint64_t t;
+
+ t = system_tasks_max();
- assert_se(mkdtemp(t));
- x = strjoina(t, "/test");
- assert_se(touch(x) >= 0);
+ assert_se(system_tasks_max_scale(0, 100) == 0);
+ assert_se(system_tasks_max_scale(100, 100) == t);
- r = setxattr(x, "user.foo", "bar", 3, 0);
- if (r < 0 && errno == EOPNOTSUPP) /* no xattrs supported on /var/tmp... */
- goto cleanup;
- assert_se(r >= 0);
+ assert_se(system_tasks_max_scale(0, 1) == 0);
+ assert_se(system_tasks_max_scale(1, 1) == t);
+ assert_se(system_tasks_max_scale(2, 1) == 2*t);
- fd = open(t, O_RDONLY|O_DIRECTORY|O_CLOEXEC|O_NOCTTY);
- assert_se(fd >= 0);
+ assert_se(system_tasks_max_scale(0, 2) == 0);
+ assert_se(system_tasks_max_scale(1, 2) == t/2);
+ assert_se(system_tasks_max_scale(2, 2) == t);
+ assert_se(system_tasks_max_scale(3, 2) == (3*t)/2);
+ assert_se(system_tasks_max_scale(4, 2) == t*2);
- assert_se(fgetxattrat_fake(fd, "test", "user.foo", v, 3, 0) >= 0);
- assert_se(memcmp(v, "bar", 3) == 0);
+ assert_se(system_tasks_max_scale(0, UINT32_MAX) == 0);
+ assert_se(system_tasks_max_scale((UINT32_MAX-1)/2, UINT32_MAX-1) == t/2);
+ assert_se(system_tasks_max_scale(UINT32_MAX, UINT32_MAX) == t);
- safe_close(fd);
- fd = open("/", O_RDONLY|O_DIRECTORY|O_CLOEXEC|O_NOCTTY);
- assert_se(fd >= 0);
- assert_se(fgetxattrat_fake(fd, "usr", "user.idontexist", v, 3, 0) == -ENODATA);
+ /* overflow */
-cleanup:
- assert_se(unlink(x) >= 0);
- assert_se(rmdir(t) >= 0);
+ assert_se(system_tasks_max_scale(UINT64_MAX/4, UINT64_MAX) == UINT64_MAX);
}
int main(int argc, char *argv[]) {
test_protect_errno();
test_in_set();
test_log2i();
- test_execute_directory();
test_raw_clone();
- test_fgetxattrat_fake();
+ test_physical_memory();
+ test_physical_memory_scale();
+ test_system_tasks_max();
+ test_system_tasks_max_scale();
return 0;
}
projects / thirdparty / systemd.git / blobdiff