From ba77628250ae7158db363fc0d7886ebd43e9cb69 Mon Sep 17 00:00:00 2001 From: Gedare Bloom Date: Fri, 12 Aug 2016 15:25:10 -0400 Subject: posix: shared memory support Add POSIX shared memory manager (Shm). Includes a hook-based approach for the backing memory storage that defaults to the Workspace, and a test is provided using the heap. A test is also provided for the basic use of mmap'ing a shared memory object. This test currently fails at the mmap stage due to no support for mmap. --- testsuites/psxtests/psxshm02/Makefile.am | 22 ++++++++ testsuites/psxtests/psxshm02/init.c | 91 +++++++++++++++++++++++++++++++ testsuites/psxtests/psxshm02/psxshm02.scn | 0 testsuites/psxtests/psxshm02/system.h | 38 +++++++++++++ 4 files changed, 151 insertions(+) create mode 100644 testsuites/psxtests/psxshm02/Makefile.am create mode 100644 testsuites/psxtests/psxshm02/init.c create mode 100644 testsuites/psxtests/psxshm02/psxshm02.scn create mode 100644 testsuites/psxtests/psxshm02/system.h (limited to 'testsuites/psxtests/psxshm02') diff --git a/testsuites/psxtests/psxshm02/Makefile.am b/testsuites/psxtests/psxshm02/Makefile.am new file mode 100644 index 0000000000..c174b0ccf5 --- /dev/null +++ b/testsuites/psxtests/psxshm02/Makefile.am @@ -0,0 +1,22 @@ + +rtems_tests_PROGRAMS = psxshm02 +psxshm02_SOURCES = init.c system.h + +dist_rtems_tests_DATA = psxshm02.scn + +include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg +include $(top_srcdir)/../automake/compile.am +include $(top_srcdir)/../automake/leaf.am + + +AM_CPPFLAGS += -I$(top_srcdir)/include +AM_CPPFLAGS += -I$(top_srcdir)/../support/include + +LINK_OBJS = $(psxshm02_OBJECTS) +LINK_LIBS = $(psxshm02_LDLIBS) + +psxshm02$(EXEEXT): $(psxshm02_OBJECTS) $(psxshm02_DEPENDENCIES) + @rm -f psxshm02$(EXEEXT) + $(make-exe) + +include $(top_srcdir)/../automake/local.am diff --git a/testsuites/psxtests/psxshm02/init.c b/testsuites/psxtests/psxshm02/init.c new file mode 100644 index 0000000000..29dea97f7c --- /dev/null +++ b/testsuites/psxtests/psxshm02/init.c @@ -0,0 +1,91 @@ +/* + * Copyright (c) 2016 Gedare Bloom. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +/* + * From http://pubs.opengroup.org/onlinepubs/9699919799/functions/shm_open.html + */ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif + +#define CONFIGURE_INIT +#include "system.h" +#include "pritime.h" + +#include + +#include +#include +#include + +const char rtems_test_name[] = "PSX SHM02"; + +#define MAX_LEN 10000 +struct region { /* Defines "structure" of shared memory */ + int len; + char buf[MAX_LEN]; +}; + +void *POSIX_Init( + void *argument +) +{ + struct region *p; + int fd; + int err; + char *name = "/shm"; + + TEST_BEGIN(); + + puts( "Init: shm_open" ); + fd = shm_open( name, O_CREAT | O_RDWR, S_IRUSR | S_IWUSR ); + if ( fd == -1 ) { + printf ( "Error: %s\n", strerror(errno) ); + rtems_test_assert( fd != -1 ); + } + + puts( "Init: ftruncate" ); + err = ftruncate( fd, sizeof( struct region ) ); + if ( err == -1 ) { + printf ( "Error: %s\n", strerror(errno) ); + rtems_test_assert( err != -1 ); + } + + puts( "Init: mmap" ); + p = mmap( + NULL, + sizeof( struct region ), + PROT_READ | PROT_WRITE, MAP_SHARED, + fd, + 0 + ); + rtems_test_assert( p != MAP_FAILED ); + + puts( "Init: write to mapped region" ); + p->len = MAX_LEN; + + puts( "Init: munmap" ); + err = munmap( p, sizeof( struct region ) ); + if ( err == -1 ) { + printf ( "Error: %s\n", strerror(errno) ); + rtems_test_assert( err != -1 ); + } + + puts( "Init: close" ); + err = close( fd ); + if ( err == -1 ) { + printf ( "Error: %s\n", strerror(errno) ); + rtems_test_assert( err != -1 ); + } + + TEST_END(); + + rtems_test_exit(0); + return 0; +} diff --git a/testsuites/psxtests/psxshm02/psxshm02.scn b/testsuites/psxtests/psxshm02/psxshm02.scn new file mode 100644 index 0000000000..e69de29bb2 diff --git a/testsuites/psxtests/psxshm02/system.h b/testsuites/psxtests/psxshm02/system.h new file mode 100644 index 0000000000..d02c87f62c --- /dev/null +++ b/testsuites/psxtests/psxshm02/system.h @@ -0,0 +1,38 @@ +/* + * Copyright (c) 2016 Gedare Bloom. + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#include +#include +#include + +void *POSIX_Init( + void *argument +); + +#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER +#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER + +#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION + +#define CONFIGURE_MAXIMUM_POSIX_THREADS 1 +#define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 10 +#define CONFIGURE_MAXIMUM_POSIX_SHMS 1 +#define CONFIGURE_MEMORY_OVERHEAD 10 + +#define CONFIGURE_POSIX_INIT_THREAD_TABLE + +#include +const POSIX_Shm_Object_operations _POSIX_Shm_Object_operations = { + _POSIX_Shm_Object_create_from_heap, + _POSIX_Shm_Object_resize_from_heap, + _POSIX_Shm_Object_delete_from_heap, + _POSIX_Shm_Object_read_from_heap +}; +#define CONFIGURE_HAS_OWN_POSIX_SHM_OBJECT_OPERATIONS + +#include -- cgit v1.2.3