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authorDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:19:29 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2018-11-07 12:20:17 +0000
commita64a253794ac64cb40befee54db53bde17dd0d49 (patch)
treec1024acc5f6e508814b944d99f112259bb28b1be /registry/registry_url.h
parentNew upstream version 1.10.0+dfsg (diff)
downloadnetdata-a64a253794ac64cb40befee54db53bde17dd0d49.tar.xz
netdata-a64a253794ac64cb40befee54db53bde17dd0d49.zip
New upstream version 1.11.0+dfsgupstream/1.11.0+dfsg
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'registry/registry_url.h')
-rw-r--r--registry/registry_url.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/registry/registry_url.h b/registry/registry_url.h
new file mode 100644
index 000000000..c684f1c35
--- /dev/null
+++ b/registry/registry_url.h
@@ -0,0 +1,35 @@
+// SPDX-License-Identifier: GPL-3.0-or-later
+
+#ifndef NETDATA_REGISTRY_URL_H
+#define NETDATA_REGISTRY_URL_H 1
+
+#include "registry_internals.h"
+
+// ----------------------------------------------------------------------------
+// URL structures
+// Save memory by de-duplicating URLs
+// so instead of storing URLs all over the place
+// we store them here and we keep pointers elsewhere
+
+struct registry_url {
+ avl avl;
+ uint32_t hash; // the index hash
+
+ uint32_t links; // the number of links to this URL - when none is left, we free it
+
+ uint16_t len; // the length of the URL in bytes
+ char url[1]; // the URL - dynamically allocated to more size
+};
+typedef struct registry_url REGISTRY_URL;
+
+// REGISTRY_URL INDEX
+extern int registry_url_compare(void *a, void *b);
+extern REGISTRY_URL *registry_url_index_del(REGISTRY_URL *u) WARNUNUSED;
+extern REGISTRY_URL *registry_url_index_add(REGISTRY_URL *u) NEVERNULL WARNUNUSED;
+
+// REGISTRY_URL MANAGEMENT
+extern REGISTRY_URL *registry_url_get(const char *url, size_t urllen) NEVERNULL;
+extern void registry_url_link(REGISTRY_URL *u);
+extern void registry_url_unlink(REGISTRY_URL *u);
+
+#endif //NETDATA_REGISTRY_URL_H