Merge branch 'journal'

1 files changed, 125 insertions, 0 deletions

diff --git a/src/journal/sd-journal.h b/src/journal/sd-journal.h
new file mode 100644
index 0000000000..97f9f0fa13
--- /dev/null
+++ b/src/journal/sd-journal.h
@@ -0,0 +1,125 @@
+/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
+
+#ifndef foojournalhfoo
+#define foojournalhfoo
+
+/***
+  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 General Public License as published by
+  the Free Software Foundation; either version 2 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
+  General Public License for more details.
+
+  You should have received a copy of the GNU General Public License
+  along with systemd; If not, see <http://www.gnu.org/licenses/>.
+***/
+
+#include <inttypes.h>
+#include <sys/types.h>
+#include <stdarg.h>
+#include <sys/uio.h>
+
+#include "sd-id128.h"
+
+/* TODO:
+ *
+ *   - OR of matches is borked...
+ *   - extend hash tables table as we go
+ *   - accelerate looking for "all hostnames" and suchlike.
+ *   - hookup with systemctl
+ *   - handle incomplete header
+ *   - write unit files
+ *
+ *   - local deserializer
+ *   - http server
+ *   - message catalog
+ *
+ *   - check LE/BE conversion for 8bit, 16bit, 32bit values
+ *   - cryptographic hash
+ *   - think about manipulations of header
+ *   - implement audit gateway
+ */
+
+/* Write to daemon */
+
+int sd_journal_print(int piority, const char *format, ...) __attribute__ ((format (printf, 2, 3)));
+int sd_journal_printv(int priority, const char *format, va_list ap);
+
+int sd_journal_send(const char *format, ...) __attribute__((sentinel));
+int sd_journal_sendv(const struct iovec *iov, int n);
+
+int sd_journal_stream_fd(const char *tag, int priority, int priority_prefix);
+
+/* Browse journal stream */
+
+typedef struct sd_journal sd_journal;
+
+enum {
+        SD_JOURNAL_LOCAL_ONLY = 1,
+        SD_JOURNAL_RUNTIME_ONLY = 2,
+        SD_JOURNAL_SYSTEM_ONLY = 4
+};
+
+int sd_journal_open(sd_journal **ret, int flags);
+void sd_journal_close(sd_journal *j);
+
+int sd_journal_previous(sd_journal *j);
+int sd_journal_next(sd_journal *j);
+
+int sd_journal_previous_skip(sd_journal *j, uint64_t skip);
+int sd_journal_next_skip(sd_journal *j, uint64_t skip);
+
+int sd_journal_get_realtime_usec(sd_journal *j, uint64_t *ret);
+int sd_journal_get_monotonic_usec(sd_journal *j, uint64_t *ret, sd_id128_t *ret_boot_id);
+int sd_journal_get_data(sd_journal *j, const char *field, const void **data, size_t *l);
+int sd_journal_enumerate_data(sd_journal *j, const void **data, size_t *l);
+void sd_journal_restart_data(sd_journal *j);
+
+int sd_journal_add_match(sd_journal *j, const void *data, size_t size);
+void sd_journal_flush_matches(sd_journal *j);
+
+int sd_journal_seek_head(sd_journal *j);
+int sd_journal_seek_tail(sd_journal *j);
+int sd_journal_seek_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t usec);
+int sd_journal_seek_realtime_usec(sd_journal *j, uint64_t usec);
+int sd_journal_seek_cursor(sd_journal *j, const char *cursor);
+
+int sd_journal_get_cursor(sd_journal *j, char **cursor);
+
+int sd_journal_query_unique(sd_journal *j, const char *field);      /* missing */
+int sd_journal_enumerate_unique(sd_journal *j, const void **data, size_t *l); /* missing */
+void sd_journal_restart_unique(sd_journal *j);                      /* missing */
+
+enum {
+        SD_JOURNAL_NOP,
+        SD_JOURNAL_APPEND,
+        SD_JOURNAL_INVALIDATE_ADD,
+        SD_JOURNAL_INVALIDATE_REMOVE
+};
+
+int sd_journal_get_fd(sd_journal *j);
+int sd_journal_process(sd_journal *j);
+
+#define SD_JOURNAL_FOREACH(j)                                           \
+        if (sd_journal_seek_head(j) >= 0)                               \
+                while (sd_journal_next(j) > 0)
+
+#define SD_JOURNAL_FOREACH_BACKWARDS(j)                                 \
+        if (sd_journal_seek_tail(j) >= 0)                               \
+                while (sd_journal_previous(j) > 0)
+
+#define SD_JOURNAL_FOREACH_DATA(j, data, l)                             \
+        for (sd_journal_restart_data(j); sd_journal_enumerate_data((j), &(data), &(l)) > 0; )
+
+#define SD_JOURNAL_FOREACH_UNIQUE(j, data, l)                           \
+        for (sd_journal_restart_unique(j); sd_journal_enumerate_data((j), &(data), &(l)) > 0; )
+
+#endif