1 files changed, 128 insertions, 0 deletions
diff --git a/src/lnav.events.hh b/src/lnav.events.hh
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+++ b/src/lnav.events.hh
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+/**
+ * Copyright (c) 2022, Timothy Stack
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * * Neither the name of Timothy Stack nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ''AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef lnav_events_hh
+#define lnav_events_hh
+
+#include <sqlite3.h>
+
+#include "yajlpp/yajlpp_def.hh"
+
+namespace lnav {
+namespace events {
+
+namespace file {
+
+struct open {
+    std::string o_filename;
+    std::string o_schema{SCHEMA_ID};
+
+    static const std::string SCHEMA_ID;
+    static const typed_json_path_container<open> handlers;
+};
+
+struct format_detected {
+    std::string fd_filename;
+    std::string fd_format;
+    std::string fd_schema{SCHEMA_ID};
+
+    static const std::string SCHEMA_ID;
+    static const typed_json_path_container<format_detected> handlers;
+};
+
+}  // namespace file
+
+namespace log {
+
+struct msg_detected {
+    std::string md_watch_name;
+    std::string md_filename;
+    std::string md_format;
+    uint32_t md_line_number;
+    std::string md_timestamp;
+    std::map<std::string, json_any_t> md_values;
+    std::string md_schema{SCHEMA_ID};
+
+    static const std::string SCHEMA_ID;
+    static const typed_json_path_container<msg_detected> handlers;
+};
+
+}  // namespace log
+
+namespace session {
+
+struct loaded {
+    std::string l_schema{SCHEMA_ID};
+
+    static const std::string SCHEMA_ID;
+    static const typed_json_path_container<loaded> handlers;
+};
+
+}  // namespace session
+
+int register_events_tab(sqlite3* db);
+
+namespace details {
+void publish(sqlite3* db, const std::string& content);
+}  // namespace details
+
+template<typename T>
+void
+publish(sqlite3* db, T event)
+{
+    auto serialized = T::handlers.to_string(event);
+
+    details::publish(db, serialized);
+}
+
+template<typename T, typename F>
+void
+publish(sqlite3* db, const T& container, F func)
+{
+    auto_mem<char> errmsg(sqlite3_free);
+
+    if (sqlite3_exec(db, "BEGIN TRANSACTION", nullptr, nullptr, errmsg.out())
+        != SQLITE_OK)
+    {
+        log_error("unable to start event transaction: %s", errmsg.in());
+    }
+    for (const auto& elem : container) {
+        publish(db, func(elem));
+    }
+    if (sqlite3_exec(db, "COMMIT TRANSACTION", nullptr, nullptr, errmsg.out())
+        != SQLITE_OK)
+    {
+        log_error("unable to commit event transaction: %s", errmsg.in());
+    }
+}
+
+}  // namespace events
+}  // namespace lnav
+
+#endif