terminal: provide display dimensions to API users

[elogind.git] / src / journal-remote / journal-remote-write.c

diff --git a/src/journal-remote/journal-remote-write.c b/src/journal-remote/journal-remote-write.c
index 4d142bdc97bbb7003047a48531e362836246dfdf..8ede950bea17b60003d6de6a5def1623bacf5628 100644 (file)
--- a/src/journal-remote/journal-remote-write.c
+++ b/src/journal-remote/journal-remote-write.c
@@ -19,7 +19,7 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include "journal-remote-write.h"
+#include "journal-remote.h"
 
 int iovw_put(struct iovec_wrapper *iovw, void* data, size_t len) {
         if (!GREEDY_REALLOC(iovw->iovec, iovw->size_bytes, iovw->count + 1))
@@ -30,8 +30,6 @@ int iovw_put(struct iovec_wrapper *iovw, void* data, size_t len) {
 }
 
 void iovw_free_contents(struct iovec_wrapper *iovw) {
-        for (size_t j = 0; j < iovw->count; j++)
-                free(iovw->iovec[j].iov_base);
         free(iovw->iovec);
         iovw->iovec = NULL;
         iovw->size_bytes = iovw->count = 0;
@@ -40,12 +38,19 @@ void iovw_free_contents(struct iovec_wrapper *iovw) {
 size_t iovw_size(struct iovec_wrapper *iovw) {
         size_t n = 0, i;
 
-        for(i = 0; i < iovw->count; i++)
+        for (i = 0; i < iovw->count; i++)
                 n += iovw->iovec[i].iov_len;
 
         return n;
 }
 
+void iovw_rebase(struct iovec_wrapper *iovw, char *old, char *new) {
+        size_t i;
+
+        for (i = 0; i < iovw->count; i++)
+                iovw->iovec[i].iov_base = (char*) iovw->iovec[i].iov_base - old + new;
+}
+
 /**********************************************************************
  **********************************************************************
  **********************************************************************/
@@ -64,30 +69,67 @@ static int do_rotate(JournalFile **f, bool compress, bool seal) {
         return r;
 }
 
-int writer_init(Writer *s) {
-        assert(s);
+Writer* writer_new(RemoteServer *server) {
+        Writer *w;
 
-        s->journal = NULL;
+        w = new0(Writer, 1);
+        if (!w)
+                return NULL;
 
-        memset(&s->metrics, 0xFF, sizeof(s->metrics));
+        memset(&w->metrics, 0xFF, sizeof(w->metrics));
 
-        s->mmap = mmap_cache_new();
-        if (!s->mmap)
-                return log_oom();
+        w->mmap = mmap_cache_new();
+        if (!w->mmap) {
+                free(w);
+                return NULL;
+        }
 
-        s->seqnum = 0;
+        w->n_ref = 1;
+        w->server = server;
 
-        return 0;
+        return w;
 }
 
-int writer_close(Writer *s) {
-        if (s->journal)
-                journal_file_close(s->journal);
-        if (s->mmap)
-                mmap_cache_unref(s->mmap);
-        return 0;
+Writer* writer_free(Writer *w) {
+        if (!w)
+                return NULL;
+
+        if (w->journal) {
+                log_debug("Closing journal file %s.", w->journal->path);
+                journal_file_close(w->journal);
+        }
+
+        if (w->server) {
+                w->server->event_count += w->seqnum;
+                if (w->hashmap_key)
+                        hashmap_remove(w->server->writers, w->hashmap_key);
+        }
+
+        free(w->hashmap_key);
+
+        if (w->mmap)
+                mmap_cache_unref(w->mmap);
+
+        free(w);
+
+        return NULL;
 }
 
+Writer* writer_unref(Writer *w) {
+        if (w && (-- w->n_ref <= 0))
+                writer_free(w);
+
+        return NULL;
+}
+
+Writer* writer_ref(Writer *w) {
+        if (w)
+                assert_se(++ w->n_ref >= 2);
+
+        return w;
+}
+
+
 int writer_write(Writer *s,
                  struct iovec_wrapper *iovw,
                  dual_timestamp *ts,
@@ -112,10 +154,12 @@ int writer_write(Writer *s,
         if (r >= 0)
                 return 1;
 
-        log_info("%s: Write failed, rotating", s->journal->path);
+        log_debug("%s: Write failed, rotating: %s", s->journal->path, strerror(-r));
         r = do_rotate(&s->journal, compress, seal);
         if (r < 0)
                 return r;
+        else
+                log_info("%s: Successfully rotated journal", s->journal->path);
 
         log_debug("Retrying write.");
         r = journal_file_append_entry(s->journal, ts, iovw->iovec, iovw->count,