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author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-02-23 15:43:41 +0100 |
---|---|---|
committer | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2017-02-28 09:09:19 +0100 |
commit | a165a9607abd4263fa1a572bb227bd9fb537053b (patch) | |
tree | cfe1593cacf1a76cbd3a95fb367eb7c8cdbf3101 /testsuites/libtests | |
parent | termios: Introduce doTransmit() (diff) | |
download | rtems-a165a9607abd4263fa1a572bb227bd9fb537053b.tar.bz2 |
termios: Make write POSIX compatible
Currently only blocking read/write operations are implemented. A
blocking write must transfer at least one character. It should not wait
for the device for the second character and so on.
Close #2917.
Diffstat (limited to 'testsuites/libtests')
-rw-r--r-- | testsuites/libtests/termios09/init.c | 138 |
1 files changed, 136 insertions, 2 deletions
diff --git a/testsuites/libtests/termios09/init.c b/testsuites/libtests/termios09/init.c index 58a23ea2c4..648d1bf7ed 100644 --- a/testsuites/libtests/termios09/init.c +++ b/testsuites/libtests/termios09/init.c @@ -55,6 +55,8 @@ typedef struct { device_context devices[DEVICE_COUNT]; int fds[DEVICE_COUNT]; struct termios term[DEVICE_COUNT]; + int context_switch_counter; + rtems_id flush_task_id; } test_context; static test_context test_instance = { @@ -910,6 +912,128 @@ static void test_olcuc(test_context *ctx) } } +static void +set_self_prio(rtems_task_priority prio) +{ + rtems_status_code sc; + + sc = rtems_task_set_priority(RTEMS_SELF, prio, &prio); + rtems_test_assert(sc == RTEMS_SUCCESSFUL); +} + +static void flush_task(rtems_task_argument arg) +{ + test_context *ctx = (test_context *) arg; + + while (true) { + set_self_prio(1); + flush_output(ctx, INTERRUPT); + set_self_prio(2); + } +} + +static void test_write(test_context *ctx) +{ + tcflag_t oflags = OPOST | ONLCR | XTABS; + rtems_status_code sc; + size_t i = INTERRUPT; + device_context *dev = &ctx->devices[i]; + char buf[OUTPUT_BUFFER_SIZE]; + ssize_t n; + + ctx->context_switch_counter = 0; + + sc = rtems_task_create( + rtems_build_name('F', 'L', 'S', 'H'), + 2, + RTEMS_MINIMUM_STACK_SIZE, + RTEMS_DEFAULT_MODES, + RTEMS_DEFAULT_ATTRIBUTES, + &ctx->flush_task_id + ); + rtems_test_assert(sc == RTEMS_SUCCESSFUL); + + sc = rtems_task_start( + ctx->flush_task_id, + flush_task, + (rtems_task_argument) ctx + ); + rtems_test_assert(sc == RTEMS_SUCCESSFUL); + + clear_output(ctx, i); + memset(buf, 'a', OUTPUT_BUFFER_SIZE); + + n = write(ctx->fds[i], &buf[0], OUTPUT_BUFFER_SIZE); + rtems_test_assert(n == OUTPUT_BUFFER_SIZE - 1); + + rtems_test_assert(ctx->context_switch_counter == 0); + + n = write(ctx->fds[i], &buf[OUTPUT_BUFFER_SIZE - 1], 1); + rtems_test_assert(n == 1); + + rtems_test_assert(ctx->context_switch_counter == 2); + rtems_test_assert(dev->output_count == OUTPUT_BUFFER_SIZE); + rtems_test_assert(memcmp(dev->output_buf, buf, OUTPUT_BUFFER_SIZE) == 0); + + clear_set_oflag(ctx, i, 0, oflags); + + /* Ensure that ONLCR output expansion is taken into account */ + + dev->tty->column = 0; + clear_output(ctx, i); + memset(buf, 'b', OUTPUT_BUFFER_SIZE - 1); + buf[OUTPUT_BUFFER_SIZE - 2] = '\n'; + + n = write(ctx->fds[i], &buf[0], OUTPUT_BUFFER_SIZE - 3); + rtems_test_assert(n == OUTPUT_BUFFER_SIZE - 3); + + rtems_test_assert(ctx->context_switch_counter == 2); + + n = write(ctx->fds[i], &buf[OUTPUT_BUFFER_SIZE - 3], 2); + rtems_test_assert(n == 1); + + rtems_test_assert(ctx->context_switch_counter == 2); + + n = write(ctx->fds[i], &buf[OUTPUT_BUFFER_SIZE - 2], 1); + rtems_test_assert(n == 1); + + rtems_test_assert(ctx->context_switch_counter == 4); + rtems_test_assert(dev->output_count == OUTPUT_BUFFER_SIZE); + buf[OUTPUT_BUFFER_SIZE - 2] = '\r'; + buf[OUTPUT_BUFFER_SIZE - 1] = '\n'; + rtems_test_assert(memcmp(dev->output_buf, buf, OUTPUT_BUFFER_SIZE) == 0); + + /* Ensure that XTABS output expansion is taken into account */ + + dev->tty->column = 0; + clear_output(ctx, i); + memset(buf, 'c', OUTPUT_BUFFER_SIZE - 8); + buf[OUTPUT_BUFFER_SIZE - 8] = '\t'; + + n = write(ctx->fds[i], &buf[0], OUTPUT_BUFFER_SIZE - 9); + rtems_test_assert(n == OUTPUT_BUFFER_SIZE - 9); + + rtems_test_assert(ctx->context_switch_counter == 4); + + n = write(ctx->fds[i], &buf[OUTPUT_BUFFER_SIZE - 9], 2); + rtems_test_assert(n == 1); + + rtems_test_assert(ctx->context_switch_counter == 4); + + n = write(ctx->fds[i], &buf[OUTPUT_BUFFER_SIZE - 8], 1); + rtems_test_assert(n == 1); + + rtems_test_assert(ctx->context_switch_counter == 6); + rtems_test_assert(dev->output_count == OUTPUT_BUFFER_SIZE); + memset(&buf[OUTPUT_BUFFER_SIZE - 8], ' ', 8); + rtems_test_assert(memcmp(dev->output_buf, buf, OUTPUT_BUFFER_SIZE) == 0); + + clear_set_oflag(ctx, i, oflags, 0); + + sc = rtems_task_delete(ctx->flush_task_id); + rtems_test_assert(sc == RTEMS_SUCCESSFUL); +} + static void Init(rtems_task_argument arg) { test_context *ctx = &test_instance; @@ -932,21 +1056,31 @@ static void Init(rtems_task_argument arg) test_opost(ctx); test_xtabs(ctx); test_olcuc(ctx); + test_write(ctx); TEST_END(); rtems_test_exit(0); } +static void switch_extension(Thread_Control *executing, Thread_Control *heir) +{ + test_context *ctx = &test_instance; + + ++ctx->context_switch_counter; +} + #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 5 -#define CONFIGURE_MAXIMUM_TASKS 1 +#define CONFIGURE_MAXIMUM_TASKS 2 #define CONFIGURE_MAXIMUM_SEMAPHORES 7 -#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION +#define CONFIGURE_INITIAL_EXTENSIONS \ + { .thread_switch = switch_extension }, \ + RTEMS_TEST_INITIAL_EXTENSION #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |