From 972a52cf6db894cfd025b4c4375b6e07c9f77717 Mon Sep 17 00:00:00 2001
From: compudj <compudj@04897980-b3bd-0310-b5e0-8ef037075253>
Date: Mon, 6 Mar 2006 07:09:46 +0000
Subject: [PATCH] add high speed blocking test

git-svn-id: http://ltt.polymtl.ca/svn@1579 04897980-b3bd-0310-b5e0-8ef037075253
---
 usertrace-generic/Makefile                    |  5 ++++-
 .../ltt/ltt-facility-user_generic.h           |  4 ++--
 usertrace-generic/ltt/ltt-generic.h           |  9 +++++++--
 usertrace-generic/sample-highspeed.c          | 20 +++++++++++++++++++
 usertrace-generic/sample.c                    |  1 +
 5 files changed, 34 insertions(+), 5 deletions(-)
 create mode 100644 usertrace-generic/sample-highspeed.c

diff --git a/usertrace-generic/Makefile b/usertrace-generic/Makefile
index 94a5a6a2..8d02d71b 100644
--- a/usertrace-generic/Makefile
+++ b/usertrace-generic/Makefile
@@ -2,13 +2,16 @@
 
 CC=gcc
 
-all: sample-thread sample
+all: sample-thread sample sample-highspeed
 
 sample-thread: sample-thread.c ltt-facility-loader-user_generic.c
 	$(CC) $(CFLAGS) -I. -lpthread -o $@ $^
 
 sample: sample.c ltt-facility-loader-user_generic.c
 	$(CC) $(CFLAGS) -I. -o $@ $^
+	
+sample-highspeed: sample-highspeed.c ltt-facility-loader-user_generic.c
+	$(CC) $(CFLAGS) -I. -o $@ $^
 
 .PHONY : clean
 
diff --git a/usertrace-generic/ltt/ltt-facility-user_generic.h b/usertrace-generic/ltt/ltt-facility-user_generic.h
index c5b9bd03..1529fe2e 100644
--- a/usertrace-generic/ltt/ltt-facility-user_generic.h
+++ b/usertrace-generic/ltt/ltt-facility-user_generic.h
@@ -97,7 +97,7 @@ static inline int trace_user_generic_string(
 			*len = 0;
 		}
 
-		ret = ltt_trace_generic(ltt_facility_user_generic_411B0F83, event_user_generic_string, stack_buffer, sizeof(stack_buffer));
+		ret = ltt_trace_generic(ltt_facility_user_generic_411B0F83, event_user_generic_string, stack_buffer, sizeof(stack_buffer), LTT_BLOCKING);
 	}
 
 	return ret;
@@ -226,7 +226,7 @@ static inline int trace_user_generic_string_pointer(
 			*len = 0;
 		}
 
-		ret = ltt_trace_generic(ltt_facility_user_generic_411B0F83, event_user_generic_string_pointer, stack_buffer, sizeof(stack_buffer));
+		ret = ltt_trace_generic(ltt_facility_user_generic_411B0F83, event_user_generic_string_pointer, stack_buffer, sizeof(stack_buffer), LTT_BLOCKING);
 	}
 
 	return ret;
diff --git a/usertrace-generic/ltt/ltt-generic.h b/usertrace-generic/ltt/ltt-generic.h
index ab9423d3..efa338c3 100644
--- a/usertrace-generic/ltt/ltt-generic.h
+++ b/usertrace-generic/ltt/ltt-generic.h
@@ -39,6 +39,11 @@
 
 #define FACNAME_LEN 32
 
+/* LTT userspace tracing is non blocking by default when buffers are full */
+#ifndef LTT_BLOCKING
+#define LTT_BLOCKING 0
+#endif //LTT_BLOCKING
+															 
 typedef unsigned int ltt_facility_t;
 
 struct user_facility_info {
@@ -52,8 +57,8 @@ struct user_facility_info {
   size_t size_t_size;
 };
 
-static inline _syscall4(int, ltt_trace_generic, unsigned int, facility_id,
-		unsigned int, event_id, void *, data, size_t, data_size)
+static inline _syscall5(int, ltt_trace_generic, unsigned int, facility_id,
+		unsigned int, event_id, void *, data, size_t, data_size, int, blocking)
 static inline _syscall2(int, ltt_register_generic, unsigned int *, facility_id, const struct user_facility_info *, info)
 
 #ifndef LTT_PACK
diff --git a/usertrace-generic/sample-highspeed.c b/usertrace-generic/sample-highspeed.c
new file mode 100644
index 00000000..bd9ea37a
--- /dev/null
+++ b/usertrace-generic/sample-highspeed.c
@@ -0,0 +1,20 @@
+
+#include <stdio.h>
+#include <unistd.h>
+
+#define LTT_TRACE
+#define LTT_BLOCKING 1
+#include <ltt/ltt-facility-user_generic.h>
+
+
+int main(int argc, char **argv)
+{
+	printf("Will trace the following string : Running fast! in a infinite loop.\n");
+
+	while(1) {
+		trace_user_generic_string("Running fast!");
+	}
+	
+	return 0;
+}
+
diff --git a/usertrace-generic/sample.c b/usertrace-generic/sample.c
index 7692ee72..efe4110b 100644
--- a/usertrace-generic/sample.c
+++ b/usertrace-generic/sample.c
@@ -3,6 +3,7 @@
 #include <unistd.h>
 
 #define LTT_TRACE
+#define LTT_BLOCKING 1
 #include <ltt/ltt-facility-user_generic.h>
 
 
-- 
2.34.1