libtests/termios10/termios10impl.h

0001 /*
0002  *  COPYRIGHT (c) 1989-2012,2019.
0003  *  On-Line Applications Research Corporation (OAR).
0004  *
0005  *  SPDX-License-Identifier: BSD-2-Clause
0006  */
0007
0008 #ifdef HAVE_CONFIG_H
0009 #include "config.h"
0010 #endif
0011
0012 #include <tmacros.h>
0013 #include "test_support.h"
0014
0015 #ifdef INTERRUPT_DRIVEN
0016 #include "../termios04/termios_testdriver_intr.h"
0017 const char rtems_test_name[] = "TERMIOS 11 -- Interrupt driven";
0018 #else
0019 #include "../termios03/termios_testdriver_polled.h"
0020 const char rtems_test_name[] = "TERMIOS 10 -- Polled";
0021 #endif
0022
0023 #include <sys/types.h>
0024 #include <sys/stat.h>
0025 #include <errno.h>
0026 #include <fcntl.h>
0027 #include <unistd.h>
0028 #include <signal.h>
0029 #include <termios.h>
0030 #include <rtems/dumpbuf.h>
0031 #include <rtems/libio.h>
0032
0033 int Test_fd;
0034
0035 static void open_it(void)
0036 {
0037   Test_fd = open( TERMIOS_TEST_DRIVER_DEVICE_NAME, O_RDWR );
0038   rtems_test_assert( Test_fd != -1 );
0039 }
0040
0041 static void change_lflag( const char *desc, int mask, int new )
0042 {
0043   int            rc;
0044   struct termios attr;
0045
0046   if (desc) {
0047     printf( "Changing c_lflag to: %s\n", desc );
0048   }
0049
0050   rc = tcgetattr( Test_fd, &attr );
0051   rtems_test_assert( rc == 0 );
0052
0053   attr.c_lflag &= ~mask;
0054   attr.c_lflag |= new;
0055
0056   rc = tcsetattr( Test_fd, TCSANOW, &attr );
0057   rtems_test_assert( rc == 0 );
0058 }
0059
0060
0061 static void read_it(ssize_t expected, int expected_intr)
0062 {
0063   ssize_t rc;
0064   char    buf[32];
0065
0066   rtems_test_assert( expected <= sizeof(buf) );
0067
0068   rc = read( Test_fd, buf, expected );
0069   if (expected_intr) {
0070     rtems_test_assert( rc == -1 );
0071     rtems_test_assert( errno == EINTR );
0072   } else {
0073     if ( expected != rc )
0074       printf( "ERROR - expected=%zd rc=%zd\n", expected, rc );
0075     rtems_test_assert( expected == rc );
0076   }
0077 }
0078
0079 static void close_it(void)
0080 {
0081   int rc;
0082
0083   rc = close( Test_fd );
0084   rtems_test_assert( rc == 0 );
0085 }
0086
0087 volatile int sigint_occurred = 0;
0088 volatile int sigquit_occurred = 0;
0089
0090 static void sigint_handler(int signo)
0091 {
0092   rtems_test_assert(signo == SIGINT);
0093   sigint_occurred = 1;
0094 }
0095
0096 static void sigquit_handler(int signo)
0097 {
0098   rtems_test_assert(signo == SIGQUIT);
0099   sigquit_occurred = 1;
0100 }
0101
0102 static void test_read_for_signal(
0103   const char *description,
0104   int         isig_value,
0105   char        c,
0106   int         sigint_expected,
0107   int         sigquit_expected
0108 )
0109 {
0110   char expected[3];
0111
0112   printf("Test read for %s\n", description);
0113
0114   expected[0] = c;
0115   expected[1] = '\n'; /* in canonical mode, so need \n for read to return */
0116   expected[2] = '\0';
0117
0118   sigint_occurred  = 0;
0119   sigquit_occurred = 0;
0120
0121   open_it();
0122
0123   change_lflag(NULL, ISIG, isig_value);
0124
0125   termios_test_driver_set_rx( expected, 2 );
0126
0127   read_it(1, (sigint_expected || sigquit_expected));
0128
0129   rtems_test_assert(sigint_occurred == sigint_expected);
0130   rtems_test_assert(sigquit_occurred == sigquit_expected);
0131   close_it();
0132 }
0133
0134 /*
0135  * Use a POSIX init thread so signals are enabled.
0136  */
0137 static void *POSIX_Init(void *argument)
0138 {
0139   int rc;
0140
0141   TEST_BEGIN();
0142
0143   signal(SIGINT, sigint_handler);
0144   signal(SIGQUIT, sigquit_handler);
0145
0146   puts( "Exercise default ISIG handler with ISIG enabled");
0147   test_read_for_signal("VKILL - no signals", ISIG, '\003', 0, 0);
0148   test_read_for_signal("VQUIT - no signals", ISIG, '\034', 0, 0);
0149
0150   puts( "Exercise POSIX ISIG handler with ISIG enabled");
0151   rc = rtems_termios_register_isig_handler(rtems_termios_posix_isig_handler);
0152   rtems_test_assert( rc == 0 );
0153   test_read_for_signal("VKILL - signal caught", ISIG, '\003', 1, 0);
0154   test_read_for_signal("VQUIT - signal caught", ISIG, '\034', 0, 1);
0155
0156   puts( "Exercise default ISIG handler with ISIG enabled");
0157   rc = rtems_termios_register_isig_handler(rtems_termios_default_isig_handler);
0158   rtems_test_assert( rc == 0 );
0159   test_read_for_signal("VKILL - signal caught", ISIG, '\003', 0, 0);
0160   test_read_for_signal("VQUIT - signal caught", ISIG, '\034', 0, 0);
0161
0162   puts( "Exercise POSIX ISIG handler with ISIG disabled");
0163   rc = rtems_termios_register_isig_handler(rtems_termios_posix_isig_handler);
0164   rtems_test_assert( rc == 0 );
0165   test_read_for_signal("VKILL - signal caught", 0, '\003', 0, 0);
0166   test_read_for_signal("VQUIT - signal caught", 0, '\034', 0, 0);
0167
0168   TEST_END();
0169
0170   rtems_test_exit(0);
0171 }
0172
0173 /* configuration information */
0174
0175 #define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
0176 #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
0177 #define CONFIGURE_APPLICATION_EXTRA_DRIVERS \
0178   TERMIOS_TEST_DRIVER_TABLE_ENTRY
0179
0180 /* we need to be able to open the test device */
0181 #define CONFIGURE_MAXIMUM_FILE_DESCRIPTORS 4
0182 #define CONFIGURE_MAXIMUM_POSIX_THREADS     1
0183 #define CONFIGURE_MAXIMUM_TIMERS            2
0184 #define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
0185
0186 #define CONFIGURE_POSIX_INIT_THREAD_TABLE
0187
0188 #define CONFIGURE_INIT
0189
0190 #include <rtems/confdefs.h>
0191 /* end of file */