add dump tool

2 files changed, 49 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index 3cf160e..9f09f0f 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ vpath %.c src/
 
 .PHONY: clean
 
-TOOLS = ftcat ft2csv
+TOOLS = ftcat ft2csv ftdump
 
 all: ${TOOLS}
 
@@ -25,5 +25,9 @@ FT2CSV_OBJ = ft2csv.o mapping.o timestamp.o
 ft2csv: ${FT2CSV_OBJ}
         ${CC} ${CFLAGS} -o ft2csv ${FT2CSV_OBJ}
 
+FT2CSV_OBJ = ftdump.o mapping.o timestamp.o
+ftdump: ${FT2CSV_OBJ}
+        ${CC} ${CFLAGS} -o ftdump ${FT2CSV_OBJ}
+
 clean: 
         rm -rf *.o ${TOOLS}
diff --git a/src/ftdump.c b/src/ftdump.c
new file mode 100644
index 0000000..849d6ee
--- /dev/null
+++ b/src/ftdump.c
@@ -0,0 +1,44 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include "mapping.h"
+
+#include "timestamp.h"
+
+static void dump(struct timestamp* ts, size_t count)
+{
+        struct timestamp *x;
+        while (count--) {
+                x = ts++;
+                printf("event:%d seq:%u cpu:%d type:%d\n", 
+                       (int) x->event, x->seq_no, x->cpu, x->task_type);
+        }
+}
+
+static void die(char* msg)
+{
+        if (errno)
+                perror("error: ");
+        fprintf(stderr, "%s\n", msg);   
+        exit(1);
+}
+
+int main(int argc, char** argv) 
+{
+        void* mapped;
+        size_t size, count;
+        struct timestamp* ts;   
+
+        if (argc != 2)
+                die("Usage: ftdump  <logfile>");
+        if (map_file(argv[1], &mapped, &size))
+                die("could not map file");
+
+        ts    = (struct timestamp*) mapped;
+        count = size / sizeof(struct timestamp);                
+
+        dump(ts, count);
+        return 0;
+}