53e1b68390
This follows what the kernel is doing, c.f. https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5fd54ace4721fc5ce2bb5aef6318fcf17f421460.
101 lines
2.9 KiB
C
101 lines
2.9 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
|
|
/***
|
|
This file is part of systemd.
|
|
|
|
Copyright 2014 Zbigniew Jędrzejewski-Szmek
|
|
|
|
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 "alloc-util.h"
|
|
#include "fd-util.h"
|
|
#include "journal-remote-parse.h"
|
|
#include "journald-native.h"
|
|
#include "parse-util.h"
|
|
#include "string-util.h"
|
|
|
|
void source_free(RemoteSource *source) {
|
|
if (!source)
|
|
return;
|
|
|
|
journal_importer_cleanup(&source->importer);
|
|
|
|
log_debug("Writer ref count %i", source->writer->n_ref);
|
|
writer_unref(source->writer);
|
|
|
|
sd_event_source_unref(source->event);
|
|
sd_event_source_unref(source->buffer_event);
|
|
|
|
free(source);
|
|
}
|
|
|
|
/**
|
|
* Initialize zero-filled source with given values. On success, takes
|
|
* ownership of fd, name, and writer, otherwise does not touch them.
|
|
*/
|
|
RemoteSource* source_new(int fd, bool passive_fd, char *name, Writer *writer) {
|
|
|
|
RemoteSource *source;
|
|
|
|
log_debug("Creating source for %sfd:%d (%s)",
|
|
passive_fd ? "passive " : "", fd, name);
|
|
|
|
assert(fd >= 0);
|
|
|
|
source = new0(RemoteSource, 1);
|
|
if (!source)
|
|
return NULL;
|
|
|
|
source->importer.fd = fd;
|
|
source->importer.passive_fd = passive_fd;
|
|
source->importer.name = name;
|
|
|
|
source->writer = writer;
|
|
|
|
return source;
|
|
}
|
|
|
|
int process_source(RemoteSource *source, bool compress, bool seal) {
|
|
int r;
|
|
|
|
assert(source);
|
|
assert(source->writer);
|
|
|
|
r = journal_importer_process_data(&source->importer);
|
|
if (r <= 0)
|
|
return r;
|
|
|
|
/* We have a full event */
|
|
log_trace("Received full event from source@%p fd:%d (%s)",
|
|
source, source->importer.fd, source->importer.name);
|
|
|
|
if (source->importer.iovw.count == 0) {
|
|
log_warning("Entry with no payload, skipping");
|
|
goto freeing;
|
|
}
|
|
|
|
assert(source->importer.iovw.iovec);
|
|
|
|
r = writer_write(source->writer, &source->importer.iovw, &source->importer.ts, compress, seal);
|
|
if (r < 0)
|
|
log_error_errno(r, "Failed to write entry of %zu bytes: %m",
|
|
iovw_size(&source->importer.iovw));
|
|
else
|
|
r = 1;
|
|
|
|
freeing:
|
|
journal_importer_drop_iovw(&source->importer);
|
|
return r;
|
|
}
|