1 | /* |
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2 | * COPYRIGHT (c) 2010 |
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3 | * Bharath Suri<bharath.s.jois@gmail.com>. |
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4 | * |
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5 | * The license and distribution terms for this file may be |
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6 | * found in the file LICENSE in this distribution or at |
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7 | * http://www.rtems.com/license/LICENSE. |
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8 | * |
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9 | * $Id$ |
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10 | */ |
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11 | |
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12 | /* Includes */ |
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13 | #include <bsp.h> |
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14 | #include <tmacros.h> |
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15 | #include <stdio.h> |
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16 | #include <sys/types.h> |
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17 | #include <sys/stat.h> |
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18 | #include <fcntl.h> |
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19 | #include <unistd.h> |
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20 | #include <errno.h> |
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21 | |
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22 | #include <rtems.h> |
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23 | #include <rtems/libio.h> |
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24 | |
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25 | #define NUM_OPEN_REQ 26 |
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26 | |
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27 | void test_main(void) |
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28 | { |
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29 | |
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30 | int status = -1; |
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31 | int fd = 0; |
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32 | int index = 0; |
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33 | int num_opens = 0; |
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34 | |
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35 | puts("\n\n*** FIFO / PIPE OPEN TEST - 4 ***"); |
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36 | puts( |
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37 | "\n\nConfiguration: Pipes configured, \ |
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38 | but number of barriers configured = 2\n" |
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39 | ); |
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40 | |
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41 | puts("\n\nCreating directory /tmp"); |
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42 | status = mkdir("/tmp", 0777); |
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43 | rtems_test_assert(status == 0); |
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44 | |
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45 | puts("\n\nCreating fifo /tmp/fifo"); |
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46 | status = mkfifo("/tmp/fifo01", 0777); |
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47 | rtems_test_assert(status == 0); |
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48 | |
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49 | puts("\n\nAttempt to open the fifo file in RDWR mode\n"); |
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50 | puts("Should be successful and non-negative\ |
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51 | file descriptor expected"); |
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52 | |
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53 | fd = open("/tmp/fifo01", O_RDWR); |
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54 | rtems_test_assert(fd > 0); |
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55 | ++num_opens; |
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56 | |
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57 | puts("\n\nClosing the fifo file"); |
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58 | status = close(fd); |
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59 | rtems_test_assert(status == 0); |
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60 | |
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61 | puts("\n\nAttempt to open the fifo file in \ |
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62 | RDONLY and NONBLOCK mode\n"); |
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63 | puts("Should be successful and non-negative\ |
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64 | file descriptor expected"); |
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65 | |
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66 | fd = open("/tmp/fifo01", O_RDONLY | O_NONBLOCK); |
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67 | rtems_test_assert(fd > 0); |
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68 | ++num_opens; |
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69 | |
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70 | puts("\n\nClosing the fifo file"); |
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71 | status = close(fd); |
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72 | rtems_test_assert(status == 0); |
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73 | |
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74 | puts("\n\nAttempt to open the fifo file in \ |
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75 | WRONLY and NONBLOCK mode\n"); |
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76 | puts("Should return with an error ENXIO"); |
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77 | |
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78 | fd = open("/tmp/fifo01", O_WRONLY | O_NONBLOCK); |
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79 | rtems_test_assert(fd == -1); |
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80 | rtems_test_assert(errno == ENXIO); |
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81 | ++num_opens; |
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82 | |
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83 | // Number of attempts to open fifo till now = 3 |
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84 | // Number of attempts to move the static char |
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85 | // from 'a' -> 'z' = 26 |
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86 | // => Number of opens required = 23 |
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87 | puts("\n\nMultiple opens\n"); |
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88 | for(index = 0; index < NUM_OPEN_REQ - num_opens; ++index) { |
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89 | |
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90 | fd = open("/tmp/fifo01", O_RDONLY | O_NONBLOCK); |
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91 | rtems_test_assert(fd > 0); |
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92 | |
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93 | status = close(fd); |
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94 | rtems_test_assert(status == 0); |
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95 | |
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96 | printf("%d... ", index+1); |
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97 | } |
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98 | |
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99 | puts("\n\nRemove the entry /tmp/fifo01"); |
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100 | status = unlink("/tmp/fifo01"); |
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101 | rtems_test_assert(status == 0); |
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102 | |
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103 | puts("\n\nRemove directory /tmp"); |
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104 | status = rmdir("/tmp"); |
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105 | rtems_test_assert(status == 0); |
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106 | |
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107 | puts("\n\n*** END OF FIFO / PIPE OPEN TEST - 4 ***"); |
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108 | } |
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109 | |
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110 | rtems_task Init( |
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111 | rtems_task_argument not_used |
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112 | ) |
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113 | { |
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114 | test_main(); |
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115 | rtems_test_exit(0); |
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116 | } |
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117 | |
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118 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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119 | #define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER |
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120 | |
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121 | #define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM |
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122 | #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 6 |
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123 | |
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124 | #define CONFIGURE_MAXIMUM_TASKS 1 |
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125 | |
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126 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
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127 | #define CONFIGURE_PIPES_ENABLED |
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128 | #define CONFIGURE_INIT |
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129 | #define CONFIGURE_MAXIMUM_BARRIERS 2 |
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130 | |
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131 | #include <rtems/confdefs.h> |
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132 | |
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133 | /* end of file */ |
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