1 files changed, 86 insertions, 0 deletions
diff --git a/logd/LogBuffer.h b/logd/LogBuffer.h
new file mode 100644
index 0000000..4b982a8
--- /dev/null
+++ b/logd/LogBuffer.h
@@ -0,0 +1,86 @@
+/*
+ * Copyright (C) 2012-2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef _LOGD_LOG_BUFFER_H__
+#define _LOGD_LOG_BUFFER_H__
+
+#include <sys/types.h>
+
+#include <log/log.h>
+#include <sysutils/SocketClient.h>
+#include <utils/List.h>
+
+#include <private/android_filesystem_config.h>
+
+#include "LogBufferElement.h"
+#include "LogTimes.h"
+#include "LogStatistics.h"
+#include "LogWhiteBlackList.h"
+
+typedef android::List<LogBufferElement *> LogBufferElementCollection;
+
+class LogBuffer {
+    LogBufferElementCollection mLogElements;
+    pthread_mutex_t mLogElementsLock;
+
+    LogStatistics stats;
+
+    bool dgram_qlen_statistics;
+
+    PruneList mPrune;
+
+    unsigned long mMaxSize[LOG_ID_MAX];
+
+public:
+    LastLogTimes &mTimes;
+
+    LogBuffer(LastLogTimes *times);
+
+    void log(log_id_t log_id, log_time realtime,
+             uid_t uid, pid_t pid, pid_t tid,
+             const char *msg, unsigned short len);
+    log_time flushTo(SocketClient *writer, const log_time start,
+                     bool privileged,
+                     bool (*filter)(const LogBufferElement *element, void *arg) = NULL,
+                     void *arg = NULL);
+
+    void clear(log_id_t id, uid_t uid = AID_ROOT);
+    unsigned long getSize(log_id_t id);
+    int setSize(log_id_t id, unsigned long size);
+    unsigned long getSizeUsed(log_id_t id);
+    // *strp uses malloc, use free to release.
+    void formatStatistics(char **strp, uid_t uid, unsigned int logMask);
+
+    void enableDgramQlenStatistics() {
+        stats.enableDgramQlenStatistics();
+        dgram_qlen_statistics = true;
+    }
+
+    int initPrune(char *cp) { return mPrune.init(cp); }
+    // *strp uses malloc, use free to release.
+    void formatPrune(char **strp) { mPrune.format(strp); }
+
+    // helper
+    char *pidToName(pid_t pid) { return stats.pidToName(pid); }
+    uid_t pidToUid(pid_t pid) { return stats.pidToUid(pid); }
+
+private:
+    void maybePrune(log_id_t id);
+    void prune(log_id_t id, unsigned long pruneRows, uid_t uid = AID_ROOT);
+
+};
+
+#endif // _LOGD_LOG_BUFFER_H__