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authorZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2012-11-12 17:29:07 +0100
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2012-11-14 23:39:53 +0100
commitd025f1e4dca8fc1436aff76f9e6185fe3e728daa (patch)
tree7cddcd1bfeebe2f8e7bbac0ac249755aa91789e6 /src/journal/journald-server.h
parentbe1015dd347edd9d72eebb444c88dddf92383c18 (diff)
build-sys: store journald code in a noinst library
The point is to allow the use of journald functions by other binaries. Before, journald code was split into multiple files (journald-*.[ch]), but all those files all required functions from journald.c. And journald.c has its own main(). Now, it is possible to link against those functions, e.g. from test binaries. This constitutes a fix for https://bugzilla.redhat.com/show_bug.cgi?id=872638. The patch does the following: 1. rename journald.h to journald-server.h and move corresponding code to journald-server.c. 2. add journald-server.c and other journald-*.c parts to libsystemd-journal-internal. 3. remove journald-syslog.c from test_journal_syslog_SOURCES, since it is now contained in libsystemd-journal-internal. There are no code changes, apart from the removal of a few static's, to allow function calls between files.
Diffstat (limited to 'src/journal/journald-server.h')
-rw-r--r--src/journal/journald-server.h152
1 files changed, 152 insertions, 0 deletions
diff --git a/src/journal/journald-server.h b/src/journal/journald-server.h
new file mode 100644
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+++ b/src/journal/journald-server.h
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+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#pragma once
+
+/***
+ This file is part of systemd.
+
+ Copyright 2011 Lennart Poettering
+
+ 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 <inttypes.h>
+#include <stdbool.h>
+#include <sys/epoll.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include "journal-file.h"
+#include "hashmap.h"
+#include "util.h"
+#include "audit.h"
+#include "journald-rate-limit.h"
+#include "list.h"
+
+typedef enum Storage {
+ STORAGE_AUTO,
+ STORAGE_VOLATILE,
+ STORAGE_PERSISTENT,
+ STORAGE_NONE,
+ _STORAGE_MAX,
+ _STORAGE_INVALID = -1
+} Storage;
+
+typedef enum SplitMode {
+ SPLIT_LOGIN,
+ SPLIT_UID,
+ SPLIT_NONE,
+ _SPLIT_MAX,
+ _SPLIT_INVALID = -1
+} SplitMode;
+
+typedef struct StdoutStream StdoutStream;
+
+typedef struct Server {
+ int epoll_fd;
+ int signal_fd;
+ int syslog_fd;
+ int native_fd;
+ int stdout_fd;
+ int dev_kmsg_fd;
+
+ JournalFile *runtime_journal;
+ JournalFile *system_journal;
+ Hashmap *user_journals;
+
+ uint64_t seqnum;
+
+ char *buffer;
+ size_t buffer_size;
+
+ JournalRateLimit *rate_limit;
+ usec_t rate_limit_interval;
+ unsigned rate_limit_burst;
+
+ JournalMetrics runtime_metrics;
+ JournalMetrics system_metrics;
+
+ bool compress;
+ bool seal;
+
+ bool forward_to_kmsg;
+ bool forward_to_syslog;
+ bool forward_to_console;
+
+ unsigned n_forward_syslog_missed;
+ usec_t last_warn_forward_syslog_missed;
+
+ uint64_t cached_available_space;
+ usec_t cached_available_space_timestamp;
+
+ uint64_t var_available_timestamp;
+
+ usec_t max_retention_usec;
+ usec_t max_file_usec;
+ usec_t oldest_file_usec;
+
+ gid_t file_gid;
+ bool file_gid_valid;
+
+ LIST_HEAD(StdoutStream, stdout_streams);
+ unsigned n_stdout_streams;
+
+ char *tty_path;
+
+ int max_level_store;
+ int max_level_syslog;
+ int max_level_kmsg;
+ int max_level_console;
+
+ Storage storage;
+ SplitMode split_mode;
+
+ MMapCache *mmap;
+
+ bool dev_kmsg_readable;
+
+ uint64_t *kernel_seqnum;
+
+ struct udev *udev;
+} Server;
+
+#define N_IOVEC_META_FIELDS 17
+#define N_IOVEC_KERNEL_FIELDS 64
+#define N_IOVEC_UDEV_FIELDS 32
+
+void server_dispatch_message(Server *s, struct iovec *iovec, unsigned n, unsigned m, struct ucred *ucred, struct timeval *tv, const char *label, size_t label_len, const char *unit_id, int priority);
+void server_driver_message(Server *s, sd_id128_t message_id, const char *format, ...);
+
+/* gperf lookup function */
+const struct ConfigPerfItem* journald_gperf_lookup(const char *key, unsigned length);
+
+int config_parse_storage(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+
+const char *storage_to_string(Storage s);
+Storage storage_from_string(const char *s);
+
+int config_parse_split_mode(const char *filename, unsigned line, const char *section, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata);
+
+const char *split_mode_to_string(SplitMode s);
+SplitMode split_mode_from_string(const char *s);
+
+void server_fix_perms(Server *s, JournalFile *f, uid_t uid);
+bool shall_try_append_again(JournalFile *f, int r);
+int server_init(Server *s);
+void server_done(Server *s);
+void server_vacuum(Server *s);
+void server_rotate(Server *s);
+int server_flush_to_var(Server *s);
+int process_event(Server *s, struct epoll_event *ev);
+void server_maybe_append_tags(Server *s);