From 7b2fe943182bff869b3ae80333a4f2d2bf0fb7cf Mon Sep 17 00:00:00 2001
From: Henri Casanova <henric@hawaii.edu>
Date: Wed, 7 May 2014 17:07:13 -1000
Subject: [PATCH 1/1] Added a smpi_usleep function and usleep -> smpi_usleep
 macro

---
 include/smpi/smpi.h   |  2 ++
 src/smpi/smpi_bench.c | 19 +++++++++++++++++++
 2 files changed, 21 insertions(+)

diff --git a/include/smpi/smpi.h b/include/smpi/smpi.h
index c520980c0c..f9ebc00b78 100644
--- a/include/smpi/smpi.h
+++ b/include/smpi/smpi.h
@@ -7,6 +7,7 @@
 #ifndef SMPI_H
 #define SMPI_H
 
+#include <unistd.h>
 #include <stddef.h>
 #include <sys/time.h>
 #include <xbt/misc.h>
@@ -708,6 +709,7 @@ XBT_PUBLIC(int) smpi_get_host_nb_pstates(void);
 XBT_PUBLIC(void) smpi_set_host_power_peak_at(int pstate_index);
 XBT_PUBLIC(double) smpi_get_host_consumed_energy(void);
 
+XBT_PUBLIC(int) smpi_usleep(useconds_t usecs);
 XBT_PUBLIC(unsigned int) smpi_sleep(unsigned int secs);
 XBT_PUBLIC(int) smpi_gettimeofday(struct timeval *tv, void* tz);
 XBT_PUBLIC(unsigned long long) smpi_rastro_resolution (void);
diff --git a/src/smpi/smpi_bench.c b/src/smpi/smpi_bench.c
index 2cb5bb204a..15fdb676a4 100644
--- a/src/smpi/smpi_bench.c
+++ b/src/smpi/smpi_bench.c
@@ -227,6 +227,25 @@ unsigned int smpi_sleep(unsigned int secs)
   return secs;
 }
 
+int smpi_usleep(useconds_t usecs)
+{
+  smx_action_t action;
+
+  smpi_bench_end();
+
+  double flops = (double) (usecs/1000000.0)*simcall_host_get_speed(SIMIX_host_self());
+  XBT_DEBUG("Sleep for: %f flops", flops);
+  action = simcall_host_execute("computation", SIMIX_host_self(), flops, 1, 0, 0);
+  #ifdef HAVE_TRACING
+    simcall_set_category (action, TRACE_internal_smpi_get_category());
+  #endif
+  simcall_host_execution_wait(action);
+
+  smpi_bench_begin();
+  return 0;
+}
+
+
 int smpi_gettimeofday(struct timeval *tv, void* tz)
 {
   double now;
-- 
2.20.1