Luca Boccassi
f50535afad
Gets the memory state of the manager: root@image:~# systemd-analyze malloc <malloc version=1> <heap nr=0> <sizes> <size from=33 to=33 total=396 count=12/> <unsorted from=20385 to=20385 total=20385 count=1/> </sizes> <total type=fast count=0 size=0/> <total type=rest count=14 size=36589/> <system type=current size=1691648/> <system type=max size=1839104/> <aspace type=total size=1691648/> <aspace type=mprotect size=1691648/> </heap> <total type=fast count=0 size=0/> <total type=rest count=14 size=36589/> <total type=mmap count=0 size=0/> <system type=current size=1691648/> <system type=max size=1839104/> <aspace type=total size=1691648/> <aspace type=mprotect size=1691648/> </malloc>
64 lines
2.2 KiB
C
64 lines
2.2 KiB
C
/* SPDX-License-Identifier: LGPL-2.1-or-later */
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#include "sd-bus.h"
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#include "analyze-malloc.h"
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#include "analyze.h"
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#include "bus-error.h"
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#include "bus-internal.h"
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static int dump_malloc_info(sd_bus *bus, char *service) {
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_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
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_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
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int r;
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assert(bus);
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assert(service);
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r = sd_bus_call_method(bus,
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service,
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"/org/freedesktop/MemoryAllocation1",
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"org.freedesktop.MemoryAllocation1",
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"GetMallocInfo",
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&error,
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&reply,
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NULL);
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if (r < 0)
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return log_error_errno(r, "Failed to call GetMallocInfo on '%s': %s", service, bus_error_message(&error, r));
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return dump_fd_reply(reply);
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}
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int verb_malloc(int argc, char *argv[], void *userdata) {
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_cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL;
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char **services = STRV_MAKE("org.freedesktop.systemd1");
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int r;
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if (!strv_isempty(strv_skip(argv, 1))) {
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services = strv_skip(argv, 1);
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STRV_FOREACH(service, services)
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if (!service_name_is_valid(*service))
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return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "D-Bus service name '%s' is not valid.", *service);
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}
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r = acquire_bus(&bus, NULL);
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if (r < 0)
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return bus_log_connect_error(r, arg_transport);
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r = sd_bus_can_send(bus, SD_BUS_TYPE_UNIX_FD);
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if (r < 0)
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return log_error_errno(r, "Unable to determine if bus connection supports fd passing: %m");
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if (r == 0)
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return log_error_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "Unable to receive FDs over D-Bus.");
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pager_open(arg_pager_flags);
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STRV_FOREACH(service, services) {
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r = dump_malloc_info(bus, *service);
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if (r < 0)
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return r;
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}
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return EXIT_SUCCESS;
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}
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