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Merge pull request #19590 from keszybz/comments-and-service-modernization

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Comments and service modernization
This commit is contained in:
Yu Watanabe 2021-05-13 12:17:19 +09:00 committed by GitHub
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7 changed files with 36 additions and 45 deletions
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20
docs/HACKING.md
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@ -10,8 +10,8 @@ We welcome all contributions to systemd. If you notice a bug or a missing
feature, please feel invited to fix it, and submit your work as a GitHub Pull
Request (PR) at https://github.com/systemd/systemd/pull/new.
Please make sure to follow our [Coding Style](CODING_STYLE.md) when submitting patches.
Also have a look at our [Contribution Guidelines](CONTRIBUTING.md).
Please make sure to follow our [Coding Style](CODING_STYLE.md) when submitting
patches. Also have a look at our [Contribution Guidelines](CONTRIBUTING.md).
When adding new functionality, tests should be added. For shared functionality
(in `src/basic/` and `src/shared/`) unit tests should be sufficient. The general
@ -22,8 +22,8 @@ test executable. For features at a higher level, tests in `src/test/` are very
strongly recommended. If that is not possible, integration tests in `test/` are
encouraged.
Please also have a look at our list of [code quality tools](CODE_QUALITY.md) we have setup for systemd,
to ensure our codebase stays in good shape.
Please also have a look at our list of [code quality tools](CODE_QUALITY.md) we
have setup for systemd, to ensure our codebase stays in good shape.
Please always test your work before submitting a PR. For many of the components
of systemd testing is straight-forward as you can simply compile systemd and
@ -36,12 +36,12 @@ building clean OS images from an upstream distribution in combination with a
fresh build of the project in the local working directory. To make use of this,
please acquire `mkosi` from https://github.com/systemd/mkosi first, unless your
distribution has packaged it already and you can get it from there. After the
tool is installed, symlink the settings file for your distribution of choice from
.mkosi/ to mkosi.default in the project root directory (note that the package
manager for this distro needs to be installed on your host system). After doing
that, it is sufficient to type `mkosi` in the systemd project directory to
generate a disk image `image.raw` you can boot either in `systemd-nspawn` or in
an UEFI-capable VM:
tool is installed, symlink the settings file for your distribution of choice
from .mkosi/ to mkosi.default in the project root directory (note that the
package manager for this distro needs to be installed on your host system).
After doing that, it is sufficient to type `mkosi` in the systemd project
directory to generate a disk image `image.raw` you can boot either in
`systemd-nspawn` or in an UEFI-capable VM:
```
# mkosi boot

16
src/basic/time-util.c
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@ -7,7 +7,6 @@
#include <sys/mman.h>
#include <sys/time.h>
#include <sys/timerfd.h>
#include <sys/timex.h>
#include <sys/types.h>
#include <unistd.h>
@ -1245,21 +1244,6 @@ int parse_nsec(const char *t, nsec_t *nsec) {
return 0;
}
bool ntp_synced(void) {
struct timex txc = {};
if (adjtimex(&txc) < 0)
return false;
/* Consider the system clock synchronized if the reported maximum error is smaller than the maximum
* value (16 seconds). Ignore the STA_UNSYNC flag as it may have been set to prevent the kernel from
* touching the RTC. */
if (txc.maxerror >= 16000000)
return false;
return true;
}
int get_timezones(char ***ret) {
_cleanup_fclose_ FILE *f = NULL;
_cleanup_strv_free_ char **zones = NULL;

2
src/basic/time-util.h
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@ -133,8 +133,6 @@ int parse_sec_def_infinity(const char *t, usec_t *usec);
int parse_time(const char *t, usec_t *usec, usec_t default_unit);
int parse_nsec(const char *t, nsec_t *nsec);
bool ntp_synced(void);
int get_timezones(char ***l);
bool timezone_is_valid(const char *name, int log_level);

21
src/core/service.c
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@ -1364,9 +1364,9 @@ static int service_allocate_exec_fd_event_source(
static int service_allocate_exec_fd(
Service *s,
sd_event_source **ret_event_source,
int* ret_exec_fd) {
int *ret_exec_fd) {
_cleanup_close_pair_ int p[2] = { -1, -1 };
_cleanup_close_pair_ int p[] = { -1, -1 };
int r;
assert(s);
@ -1380,7 +1380,7 @@ static int service_allocate_exec_fd(
if (r < 0)
return r;
p[0] = -1;
TAKE_FD(p[0]);
*ret_exec_fd = TAKE_FD(p[1]);
return 0;
@ -1410,7 +1410,7 @@ static int service_spawn(
ExecCommand *c,
usec_t timeout,
ExecFlags flags,
pid_t *_pid) {
pid_t *ret_pid) {
_cleanup_(exec_params_clear) ExecParameters exec_params = {
.flags = flags,
@ -1427,7 +1427,7 @@ static int service_spawn(
assert(s);
assert(c);
assert(_pid);
assert(ret_pid);
r = unit_prepare_exec(UNIT(s)); /* This realizes the cgroup, among other things */
if (r < 0)
@ -1582,7 +1582,7 @@ static int service_spawn(
if (r < 0)
return r;
*_pid = pid;
*ret_pid = pid;
return 0;
}
@ -3455,16 +3455,14 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
s->type == SERVICE_ONESHOT &&
f == SERVICE_SUCCESS) {
/* There is another command to *
* execute, so let's do that. */
/* There is another command to execute, so let's do that. */
log_unit_debug(u, "Running next main command for state %s.", service_state_to_string(s->state));
service_run_next_main(s);
} else {
/* The service exited, so the service is officially
* gone. */
/* The service exited, so the service is officially gone. */
s->main_command = NULL;
switch (s->state) {
@ -3481,8 +3479,7 @@ static void service_sigchld_event(Unit *u, pid_t pid, int code, int status) {
break;
case SERVICE_STOP:
/* Need to wait until the operation is
* done */
/* Need to wait until the operation is done. */
break;
case SERVICE_START:

7
src/libsystemd/sd-event/sd-event.c
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@ -3462,11 +3462,11 @@ static int source_dispatch(sd_event_source *s) {
* invalidate the event. */
saved_type = s->type;
/* Similar, store a reference to the event loop object, so that we can still access it after the
/* Similarly, store a reference to the event loop object, so that we can still access it after the
* callback might have invalidated/disconnected the event source. */
saved_event = sd_event_ref(s->event);
/* Check if we hit the ratelimit for this event source, if so, let's disable it. */
/* Check if we hit the ratelimit for this event source, and if so, let's disable it. */
assert(!s->ratelimited);
if (!ratelimit_below(&s->rate_limit)) {
r = event_source_enter_ratelimited(s);
@ -3485,8 +3485,7 @@ static int source_dispatch(sd_event_source *s) {
if (s->type != SOURCE_POST) {
sd_event_source *z;
/* If we execute a non-post source, let's mark all
* post sources as pending */
/* If we execute a non-post source, let's mark all post sources as pending. */
SET_FOREACH(z, s->event->post_sources) {
if (event_source_is_offline(z))

2
src/test/test-bpf-foreign-programs.c
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@ -261,7 +261,7 @@ static int test_bpf_cgroup_programs(Manager *m, const char *unit_name, const Tes
cld_code = SERVICE(u)->exec_command[SERVICE_EXEC_START]->exec_status.code;
if (cld_code != CLD_EXITED)
return log_error_errno(SYNTHETIC_ERRNO(EBUSY),
"ExecStart didn't exited, code='%s'", sigchld_code_to_string(cld_code));
"Child didn't exit normally, code='%s'", sigchld_code_to_string(cld_code));
if (SERVICE(u)->state != SERVICE_DEAD)
return log_error_errno(SYNTHETIC_ERRNO(EBUSY), "Service is not dead");

13
src/timedate/timedated.c
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@ -2,6 +2,7 @@
#include <errno.h>
#include <sys/stat.h>
#include <sys/timex.h>
#include <sys/types.h>
#include <unistd.h>
@ -556,6 +557,18 @@ static int unit_enable_or_disable(UnitStatusInfo *u, sd_bus *bus, sd_bus_error *
return 0;
}
static bool ntp_synced(void) {
struct timex txc = {};
if (adjtimex(&txc) < 0)
return false;
/* Consider the system clock synchronized if the reported maximum error is smaller than the maximum
* value (16 seconds). Ignore the STA_UNSYNC flag as it may have been set to prevent the kernel from
* touching the RTC. */
return txc.maxerror < 16000000;
}
static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_time, "t", now(CLOCK_REALTIME));
static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_ntp_sync, "b", ntp_synced());