Changeset b778083 for lib

Timestamp:

03/20/07 15:11:07 (15 years ago)

Author:

Shane Alcock <salcock@…>

Branches:

4.0.1-hotfixes, cachetimestamps, develop, dpdk-ndag, etsilive, getfragoff, help, libtrace4, master, ndag_format, pfring, rc-4.0.1, rc-4.0.2, rc-4.0.3, rc-4.0.4, ringdecrementfix, ringperformance, ringtimestampfixes

Children:

2fbcb26

Parents:

0fd4ad6

Message:

Added a new RT packet type for transmitting trace meta-data

Location:

lib

Files:

• Makefile.am (modified) (1 diff)
• format_rt.c (modified) (3 diffs)
• libtrace.h.in (modified) (1 diff)
• rt_protocol.h (modified) (1 diff)

lib/Makefile.am

@@ -38 +38 @@
                 libtrace_int.h lt_inttypes.h \
                 linktypes.c protocols.c libtraceio.h link_wireless.c \
-                $(DAGSOURCE) format_erf.h
+                $(DAGSOURCE) format_erf.h 
 
 if DAG2_4

lib/format_rt.c

@@ -542 +542 @@
                 switch(packet->type) {
                         case TRACE_RT_STATUS:
+                        case TRACE_RT_METADATA:
                                 if (rt_read(libtrace, &packet->buffer, 
                                         (size_t)RT_INFO->rt_hdr.length,
@@ -599 +600 @@
 
 static int rt_get_capture_length(const libtrace_packet_t *packet) {
+        rt_metadata_t *rt_md_hdr;
         switch (packet->type) {
                 case TRACE_RT_STATUS:
@@ -628 +630 @@
                 case TRACE_RT_CLIENTDROP:
                         return 0;
+                case TRACE_RT_METADATA:
+                        /* This is a little trickier to work out */
+                        rt_md_hdr = (rt_metadata_t *)packet->buffer;
+                        return rt_md_hdr->label_len + rt_md_hdr->value_len;
                 default:
                         printf("Unknown type: %d\n", packet->type);

lib/libtrace.h.in

@@ -278 +278 @@
         TRACE_RT_SERVERSTART    =16,/**< Server has been restarted */
         TRACE_RT_CLIENTDROP     =17,/**< Reliable client was lost */
+        TRACE_RT_METADATA       =18,/**< Packet contains server meta-data */
 
         TRACE_RT_DATA_SIMPLE    = 1000, /**< Trace types that know their link

lib/rt_protocol.h

@@ -125 +125 @@
 } rt_keychange_t;
 #endif
+
+typedef struct rt_metadata {
+        uint32_t label_len;
+        uint32_t value_len;
+} rt_metadata_t ;
 
 /** Specifications of duck structures - duck2_4 and duck2_5 match Endace's