Make daemon buffer size configurable

Signed-off-by: Alexander Wenzel <Alexander.AW.Wenzel@bmw.de>

5 files changed, 36 insertions, 4 deletions

diff --git a/src/daemon/dlt-daemon.c b/src/daemon/dlt-daemon.c
index 5f7d0dd..c8b4703 100644
--- a/src/daemon/dlt-daemon.c
+++ b/src/daemon/dlt-daemon.c
@@ -178,6 +178,9 @@ int option_file_parser(DltDaemonLocal *daemon_local)
 	strncpy(daemon_local->flags.loggingFilename, DLT_USER_DIR "/dlt.log",sizeof(daemon_local->flags.loggingFilename)-1);
 	daemon_local->flags.loggingFilename[sizeof(daemon_local->flags.loggingFilename)-1]=0;
 	daemon_local->timeoutOnSend = 4;
+	daemon_local->RingbufferMinSize = DLT_DAEMON_RINGBUFFER_MIN_SIZE;
+	daemon_local->RingbufferMaxSize = DLT_DAEMON_RINGBUFFER_MAX_SIZE;
+	daemon_local->RingbufferStepSize = DLT_DAEMON_RINGBUFFER_STEP_SIZE;
 	daemon_local->flags.sendECUSoftwareVersion = 0;
 	memset(daemon_local->flags.pathToECUSoftwareVersion, 0, sizeof(daemon_local->flags.pathToECUSoftwareVersion));
 	daemon_local->flags.sendTimezone = 0;
@@ -314,6 +317,18 @@ int option_file_parser(DltDaemonLocal *daemon_local)
 							daemon_local->timeoutOnSend = atoi(value);
 							//printf("Option: %s=%s\n",token,value);
 						}
+                       	else if(strcmp(token,"RingbufferMinSize")==0)
+						{
+							sscanf(value,"%lu",&(daemon_local->RingbufferMinSize));
+						}
+                       	else if(strcmp(token,"RingbufferMaxSize")==0)
+						{
+							sscanf(value,"%lu",&(daemon_local->RingbufferMaxSize));
+						}
+                       	else if(strcmp(token,"RingbufferStepSize")==0)
+						{
+							sscanf(value,"%lu",&(daemon_local->RingbufferStepSize));
+						}
 						else if(strcmp(token,"SharedMemorySize")==0)
 						{
 							daemon_local->flags.sharedMemorySize = atoi(value);
@@ -686,7 +701,7 @@ int dlt_daemon_local_init_p2(DltDaemon *daemon, DltDaemonLocal *daemon_local, in
     }
 
     /* Daemon data */
-    if (dlt_daemon_init(daemon,daemon_local->flags.ivalue,daemon_local->flags.vflag)==-1)
+    if (dlt_daemon_init(daemon,daemon_local->RingbufferMinSize,daemon_local->RingbufferMaxSize,daemon_local->RingbufferStepSize,daemon_local->flags.ivalue,daemon_local->flags.vflag)==-1)
     {
     	dlt_log(LOG_ERR,"Could not initialize daemon data\n");
 		return -1;
diff --git a/src/daemon/dlt-daemon.h b/src/daemon/dlt-daemon.h
index 69c679e..dfe4de3 100755
--- a/src/daemon/dlt-daemon.h
+++ b/src/daemon/dlt-daemon.h
@@ -136,6 +136,9 @@ typedef struct
     int timer_wd;                        /** file descriptor for watchdog timer */

 #endif

     int timeoutOnSend;

+    unsigned long RingbufferMinSize;

+    unsigned long RingbufferMaxSize;

+    unsigned long RingbufferStepSize;

     int timer_one_s;

     int timer_sixty_s;

 } DltDaemonLocal;

diff --git a/src/daemon/dlt.conf b/src/daemon/dlt.conf
index a079d3e..1032a9a 100644
--- a/src/daemon/dlt.conf
+++ b/src/daemon/dlt.conf
@@ -44,6 +44,15 @@ LoggingFilename = /tmp/dlt.log
 # Timeout on send to client (sec)                                                                                      
 TimeOutOnSend = 4
 
+# The minimum size of the Ringbuffer, used for storing temporary DLT messages, until client is connected (Default: 500000)
+RingbufferMinSize = 500000
+
+# The max size of the Ringbuffer, used for storing temporary DLT messages, until client is connected (Default: 10000000)
+RingbufferMaxSize = 10000000
+
+# The step size the Ringbuffer is increased, used for storing temporary DLT messages, until client is connected (Default: 500000)
+RingbufferStepSize = 500000
+
 ########################################################################
 # Offline Trace memory                                                 #
 ########################################################################
diff --git a/src/daemon/dlt_daemon_common.c b/src/daemon/dlt_daemon_common.c
index 6e9bf9b..a2392fc 100644
--- a/src/daemon/dlt_daemon_common.c
+++ b/src/daemon/dlt_daemon_common.c
@@ -120,7 +120,7 @@ static int dlt_daemon_cmp_apid_ctid(const void *m1, const void *m2)
     return ret;
 }
 
-int dlt_daemon_init(DltDaemon *daemon,const char *runtime_directory, int verbose)
+int dlt_daemon_init(DltDaemon *daemon,unsigned long RingbufferMinSize,unsigned long RingbufferMaxSize,unsigned long RingbufferStepSize,const char *runtime_directory, int verbose)
 {
     PRINT_FUNCTION_VERBOSE(verbose);
 
@@ -206,7 +206,9 @@ int dlt_daemon_init(DltDaemon *daemon,const char *runtime_directory, int verbose
     dlt_set_id(daemon->ecuid,"");
 
     /* initialize ring buffer for client connection */
-    if (dlt_buffer_init_dynamic(&(daemon->client_ringbuffer), DLT_DAEMON_RINGBUFFER_MIN_SIZE,DLT_DAEMON_RINGBUFFER_MAX_SIZE,DLT_DAEMON_RINGBUFFER_STEP_SIZE)==-1)
+    snprintf(str,DLT_DAEMON_COMMON_TEXTBUFSIZE,"Ringbuffer configuration: %lu/%lu/%lu\n", RingbufferMinSize,RingbufferMaxSize,RingbufferStepSize );
+    dlt_log(LOG_INFO, str);
+    if (dlt_buffer_init_dynamic(&(daemon->client_ringbuffer), RingbufferMinSize,RingbufferMaxSize,RingbufferStepSize)==-1)
     {
     	return -1;
     }
diff --git a/src/daemon/dlt_daemon_common.h b/src/daemon/dlt_daemon_common.h
index 4c92c43..db1bc0b 100644
--- a/src/daemon/dlt_daemon_common.h
+++ b/src/daemon/dlt_daemon_common.h
@@ -163,11 +163,14 @@ typedef struct
  * Initialise the dlt daemon structure

  * This function must be called before using further dlt daemon structure

  * @param daemon pointer to dlt daemon structure

+ * @param RingbufferMinSize ringbuffer size

+ * @param RingbufferMaxSize ringbuffer size

+ * @param RingbufferStepSize ringbuffer size

  * @param runtime_directory Directory of persistent configuration

  * @param verbose if set to true verbose information is printed out.

  * @return negative value if there was an error

  */

-int dlt_daemon_init(DltDaemon *daemon,const char *runtime_directory,int verbose);

+int dlt_daemon_init(DltDaemon *daemon,unsigned long RingbufferMinSize,unsigned long RingbufferMaxSize,unsigned long RingbufferStepSize,const char *runtime_directory,int verbose);

 /**

  * De-Initialise the dlt daemon structure

  * @param daemon pointer to dlt daemon structure