diff --git a/include/log/logger.h b/include/log/logger.h
index ff70529fb7fa7aa573a5b1cea662b321762981b0..b3928a7135d91dbe165156dfe50600dbf372ccc0 100644
--- a/include/log/logger.h
+++ b/include/log/logger.h
@@ -163,6 +163,8 @@ int android_logger_set_prune_list(struct logger_list *logger_list,
 #define ANDROID_LOG_RDWR     O_RDWR
 #define ANDROID_LOG_ACCMODE  O_ACCMODE
 #define ANDROID_LOG_NONBLOCK O_NONBLOCK
+#define ANDROID_LOG_WRAP     0x40000000 /* Block until buffer about to wrap */
+#define ANDROID_LOG_WRAP_DEFAULT_TIMEOUT 7200 /* 2 hour default */
 #define ANDROID_LOG_PSTORE   0x80000000
 
 struct logger_list *android_logger_list_alloc(int mode,
diff --git a/liblog/README b/liblog/README
index f29ac045b377108a647756427e997f5e86dd456f..df1e68c653e057ac4cd809c8dbce7e6e5ee061bd 100644
--- a/liblog/README
+++ b/liblog/README
@@ -116,6 +116,10 @@ DESCRIPTION
        code,  otherwise the  android_logger_list_read  call will block for new
        entries.
 
+       The  ANDROID_LOG_WRAP  mode flag to the  android_logger_list_alloc_time
+       signals  logd to quiesce  the reader until the buffer is about to prune
+       at the start time then proceed to dumping content.
+
        The  ANDROID_LOG_PSTORE mode flag to the android_logger_open is used to
        switch from the active logs to the persistent logs from before the last
        reboot.
diff --git a/liblog/log_read.c b/liblog/log_read.c
index cfc8a7aca929086e56fd2342618affdcc751db3a..fb8675779b5a0ddf72935969682b867fbb87f513 100644
--- a/liblog/log_read.c
+++ b/liblog/log_read.c
@@ -797,6 +797,14 @@ int android_logger_list_read(struct logger_list *logger_list,
         }
 
         if (logger_list->start.tv_sec || logger_list->start.tv_nsec) {
+            if (logger_list->mode & ANDROID_LOG_WRAP) {
+                // ToDo: alternate API to allow timeout to be adjusted.
+                ret = snprintf(cp, remaining, " timeout=%u",
+                               ANDROID_LOG_WRAP_DEFAULT_TIMEOUT);
+                ret = min(ret, remaining);
+                remaining -= ret;
+                cp += ret;
+            }
             ret = snprintf(cp, remaining, " start=%" PRIu32 ".%09" PRIu32,
                            logger_list->start.tv_sec,
                            logger_list->start.tv_nsec);