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mirror of https://github.com/systemd/systemd.git synced 2024-12-23 21:35:11 +03:00

core: dump jobs list on sigrtmin+18 with 0x500

This commit is contained in:
Luca Boccassi 2023-09-10 22:52:05 +01:00
parent 0213162743
commit 0112c37ce4
5 changed files with 44 additions and 0 deletions

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@ -24,6 +24,22 @@ void manager_dump_jobs(Manager *s, FILE *f, char **patterns, const char *prefix)
}
}
int manager_get_dump_jobs_string(Manager *m, char **patterns, const char *prefix, char **ret) {
_cleanup_(memstream_done) MemStream ms = {};
FILE *f;
assert(m);
assert(ret);
f = memstream_init(&ms);
if (!f)
return -errno;
manager_dump_jobs(m, f, patterns, prefix);
return memstream_finalize(&ms, ret, NULL);
}
void manager_dump_units(Manager *s, FILE *f, char **patterns, const char *prefix) {
Unit *u;
const char *t;

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@ -6,6 +6,7 @@
#include "manager.h"
void manager_dump_jobs(Manager *s, FILE *f, char **patterns, const char *prefix);
int manager_get_dump_jobs_string(Manager *m, char **patterns, const char *prefix, char **ret);
void manager_dump_units(Manager *s, FILE *f, char **patterns, const char *prefix);
void manager_dump(Manager *s, FILE *f, char **patterns, const char *prefix);
int manager_get_dump_string(Manager *m, char **patterns, char **ret);

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@ -3030,6 +3030,19 @@ static int manager_dispatch_signal_fd(sd_event_source *source, int fd, uint32_t
manager_override_log_target(m, LOG_TARGET_NULL);
break;
case MANAGER_SIGNAL_COMMAND_DUMP_JOBS: {
_cleanup_free_ char *dump_jobs = NULL;
r = manager_get_dump_jobs_string(m, /* patterns= */ NULL, " ", &dump_jobs);
if (r < 0) {
log_warning_errno(errno, "Failed to acquire manager jobs dump: %m");
break;
}
log_dump(LOG_INFO, dump_jobs);
break;
}
default:
generic = true;
}

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@ -8,6 +8,7 @@
#include "sd-device.h"
#include "sd-event.h"
#include "common-signal.h"
#include "cgroup-util.h"
#include "cgroup.h"
#include "fdset.h"
@ -23,6 +24,14 @@ typedef struct Unit Unit;
/* Enforce upper limit how many names we allow */
#define MANAGER_MAX_NAMES 131072 /* 128K */
/* On sigrtmin+18, private commands */
enum {
MANAGER_SIGNAL_COMMAND_DUMP_JOBS = _COMMON_SIGNAL_COMMAND_PRIVATE_BASE + 0,
_MANAGER_SIGNAL_COMMAND_MAX,
};
assert_cc((int) _MANAGER_SIGNAL_COMMAND_MAX <= (int) _COMMON_SIGNAL_COMMAND_PRIVATE_END);
typedef struct Manager Manager;
/* An externally visible state. We don't actually maintain this as state variable, but derive it from various fields

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@ -1,4 +1,5 @@
/* SPDX-License-Identifier: LGPL-2.1-or-later */
#pragma once
#include <syslog.h>
@ -48,6 +49,10 @@ enum {
COMMON_SIGNAL_COMMAND_MEMORY_PRESSURE = 0x300,
COMMON_SIGNAL_COMMAND_MALLOC_INFO,
/* Private signals start at 0x500 */
_COMMON_SIGNAL_COMMAND_PRIVATE_BASE = 0x500,
_COMMON_SIGNAL_COMMAND_PRIVATE_END = 0xfff,
};
struct sigrtmin18_info {