sergiotarxz/nuttx-apps
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

apps/examples/smp: Improvements/fixes

Browse Source
This commit is contained in:
Gregory Nutt 2016-02-21 13:29:25 -06:00
parent 65a6739593
commit 431695015e
3 changed files with 17 additions and 8 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
examples/smp/Make.defs
View File

@ -34,6 +34,6 @@
#
############################################################################
ifeq ($(CONFIG_EXAMPLES_HELLO),y)
ifeq ($(CONFIG_EXAMPLES_SMP),y)
CONFIGURED_APPS += examples/smp
endif

2
examples/smp/Makefile
View File

@ -1,7 +1,7 @@
############################################################################
# apps/examples/smp/Makefile
#
# Copyright (C) 2008, 2010-2013 Gregory Nutt. All rights reserved.
# Copyright (C) 2016 Gregory Nutt. All rights reserved.
# Author: Gregory Nutt <gnutt@nuttx.org>
#
# Redistribution and use in source and binary forms, with or without

21
examples/smp/smp_main.c
View File

@ -79,7 +79,7 @@ int up_cpu_index(void);
static void show_cpu(FAR const char *caller, int threadno)
{
g_thread_cpu[threadno] = up_cpu_index();
g_thread_cpu[threadno] = up_cpu_index();
printf("%s[%d]: Running on CPU%d\n", caller, threadno, g_thread_cpu[threadno]);
}
@ -231,6 +231,20 @@ int smp_main(int argc, char *argv[])
int ret;
int i;
/* Initialize data */
memset(threadid, 0, sizeof(pthread_t) * CONFIG_EXAMPLES_SMP_NBARRIER_THREADS);
for (i = 0; i <= CONFIG_EXAMPLES_SMP_NBARRIER_THREADS; i++)
{
#if defined(CONFIG_SMP) && defined(CONFIG_BUILD_FLAT)
g_thread_cpu[i] = IMPOSSIBLE_CPU;
#endif
if (i < CONFIG_EXAMPLES_SMP_NBARRIER_THREADS)
{
threadid[i] = 0;
}
}
show_cpu(" Main", 0);
printf(" Main[0]: Initializing barrier\n");
@ -268,13 +282,8 @@ int smp_main(int argc, char *argv[])
goto errout_with_barrier;
}
memset(threadid, 0, sizeof(pthread_t) * CONFIG_EXAMPLES_SMP_NBARRIER_THREADS);
for (i = 0; i < CONFIG_EXAMPLES_SMP_NBARRIER_THREADS; i++)
{
#if defined(CONFIG_SMP) && defined(CONFIG_BUILD_FLAT)
g_thread_cpu[i] = IMPOSSIBLE_CPU;
#endif
ret = pthread_create(&threadid[i], &attr, barrier_thread,
(pthread_addr_t)((uintptr_t)i+1));
if (ret != 0)