1 | /* |
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2 | * COPYRIGHT (c) 1989-2010. |
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3 | * On-Line Applications Research Corporation (OAR). |
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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 | |
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10 | #ifdef HAVE_CONFIG_H |
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11 | #include "config.h" |
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12 | #endif |
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13 | |
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14 | #include <bsp.h> |
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15 | #include <tmacros.h> |
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16 | #include <stdio.h> |
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17 | #include <sys/types.h> |
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18 | #include <sys/stat.h> |
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19 | #include <fcntl.h> |
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20 | #include <unistd.h> |
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21 | #include <errno.h> |
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22 | #include <limits.h> |
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23 | |
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24 | #include <rtems.h> |
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25 | #include <rtems/libio.h> |
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26 | |
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27 | #define SEND_RCV_BUFSIZ (PIPE_BUF+20) |
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28 | |
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29 | rtems_id rBarrier; |
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30 | rtems_id wBarrier; |
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31 | |
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32 | char recvBuf[SEND_RCV_BUFSIZ] = {0}; |
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33 | char sendBuf[SEND_RCV_BUFSIZ] = {0}; |
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34 | |
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35 | rtems_task read_task( rtems_task_argument not_used ) |
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36 | { |
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37 | int fd = 0; |
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38 | int status = -1; |
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39 | uint32_t released = 0; |
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40 | |
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41 | puts( "read_task - opening /fifo in non-blocking mode" ); |
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42 | |
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43 | fd = open( "/fifo", O_RDONLY | O_NONBLOCK ); |
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44 | if( fd <= 0 ) { |
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45 | printf( "Error opening file: (%d) :: %s\n", errno, strerror( errno ) ); |
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46 | rtems_test_assert( 0 ); |
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47 | } |
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48 | |
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49 | puts( "read_task - attempt to read with number of writers = 0" ); |
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50 | status = read( fd, recvBuf, SEND_RCV_BUFSIZ ); |
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51 | rtems_test_assert( status == 0 ); |
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52 | |
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53 | puts( "read_task - releasing the write task" ); |
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54 | status = rtems_barrier_release( wBarrier, &released ); |
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55 | rtems_test_assert( status == 0 ); |
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56 | |
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57 | puts( "read_task - waiting at a barrier" ); |
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58 | status = rtems_barrier_wait( rBarrier, RTEMS_NO_TIMEOUT ); |
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59 | rtems_test_assert( status == RTEMS_SUCCESSFUL ); |
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60 | |
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61 | puts( "read_task - attempting to read from the fifo -- Expect EAGAIN" ); |
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62 | status = read( fd, recvBuf, SEND_RCV_BUFSIZ ); |
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63 | rtems_test_assert( status == -1 ); |
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64 | rtems_test_assert( errno == EAGAIN ); |
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65 | |
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66 | puts( "read_task - closing /fifo" ); |
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67 | status = close( fd ); |
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68 | rtems_test_assert( status == 0 ); |
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69 | |
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70 | puts("read_task - opening /fifo in read-only mode"); |
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71 | fd = open( "/fifo", O_RDONLY ); |
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72 | if( fd <= 0 ) { |
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73 | printf( "Error opening file: (%d) :: %s\n", errno, strerror( errno ) ); |
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74 | rtems_test_assert( 0 ); |
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75 | } |
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76 | |
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77 | puts( "read_task - releasing the write task" ); |
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78 | status = rtems_barrier_release( wBarrier, &released ); |
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79 | rtems_test_assert( status == 0 ); |
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80 | |
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81 | puts( "read_task - reading from /fifo - OK" ); |
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82 | status = read( fd, recvBuf, 10 ); |
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83 | rtems_test_assert( status == 10 ); |
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84 | |
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85 | puts( "read_task - reading from /fifo - OK" ); |
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86 | status = read( fd, recvBuf+10, 10 ); |
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87 | rtems_test_assert( status == 10 ); |
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88 | |
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89 | puts( "read_task - waiting at a barrier" ); |
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90 | status = rtems_barrier_wait( rBarrier, RTEMS_NO_TIMEOUT ); |
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91 | rtems_test_assert( status == RTEMS_SUCCESSFUL ); |
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92 | |
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93 | puts( "read_task - reading from /fifo - OK" ); |
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94 | status = read( fd, recvBuf+20, SEND_RCV_BUFSIZ - 20 ); |
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95 | rtems_test_assert( status == SEND_RCV_BUFSIZ - 20 ); |
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96 | |
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97 | if( strcmp( sendBuf, recvBuf ) ) { |
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98 | puts( "Sent, received buffer do not match" ); |
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99 | rtems_test_assert( 0 ); |
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100 | } |
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101 | |
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102 | puts( "read_task - releasing the write task" ); |
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103 | status = rtems_barrier_release( wBarrier, &released ); |
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104 | rtems_test_assert( status == 0 ); |
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105 | |
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106 | puts( "read_task - waiting at a barrier" ); |
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107 | status = rtems_barrier_wait( rBarrier, RTEMS_NO_TIMEOUT ); |
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108 | rtems_test_assert( status == RTEMS_SUCCESSFUL ); |
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109 | |
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110 | status = close( fd ); |
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111 | rtems_test_assert( status == 0 ); |
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112 | |
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113 | puts( "read_task - releasing the write task" ); |
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114 | status = rtems_barrier_release( wBarrier, &released ); |
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115 | rtems_test_assert( status == 0 ); |
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116 | |
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117 | rtems_task_delete( RTEMS_SELF ); |
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118 | } |
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119 | |
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120 | |
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121 | |
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122 | rtems_task Init( |
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123 | rtems_task_argument not_used |
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124 | ) |
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125 | { |
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126 | rtems_id readTaskID; |
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127 | |
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128 | rtems_name readTaskName; |
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129 | |
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130 | int status = -1; |
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131 | int fd = 0; |
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132 | uint32_t released = 0; |
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133 | int flag = 1; |
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134 | |
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135 | puts("\n*** FIFO / PIPE TESTS - 5 ***"); |
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136 | |
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137 | memset( sendBuf, '1', SEND_RCV_BUFSIZ - 30 ); |
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138 | memset( sendBuf, '2', 29 ); |
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139 | sendBuf[SEND_RCV_BUFSIZ-1] = 0; |
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140 | |
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141 | memset( &rBarrier, 0, sizeof(rBarrier) ); |
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142 | status = rtems_barrier_create ( |
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143 | rtems_build_name ( 'B', 'A', 'R', 'r' ), |
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144 | RTEMS_BARRIER_MANUAL_RELEASE, |
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145 | 2, |
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146 | &rBarrier |
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147 | ); |
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148 | |
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149 | rtems_test_assert( status == RTEMS_SUCCESSFUL ); |
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150 | |
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151 | memset( &wBarrier, 0, sizeof( wBarrier ) ); |
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152 | status = rtems_barrier_create ( |
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153 | rtems_build_name ( 'B', 'A', 'R', 'w' ), |
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154 | RTEMS_BARRIER_MANUAL_RELEASE, |
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155 | 2, |
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156 | &wBarrier |
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157 | ); |
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158 | rtems_test_assert( status == RTEMS_SUCCESSFUL ); |
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159 | |
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160 | readTaskName = rtems_build_name( 'T','A','r',' ' ); |
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161 | status = rtems_task_create( |
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162 | readTaskName, |
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163 | 1, |
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164 | RTEMS_MINIMUM_STACK_SIZE * 2, |
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165 | RTEMS_INTERRUPT_LEVEL(31), |
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166 | RTEMS_DEFAULT_ATTRIBUTES, |
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167 | &readTaskID |
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168 | ); |
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169 | |
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170 | rtems_test_assert( status == RTEMS_SUCCESSFUL ); |
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171 | |
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172 | puts( "Init - Creating fifo file /fifo" ); |
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173 | status = mkfifo( "/fifo", 0777 ); |
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174 | rtems_test_assert( status == 0 ); |
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175 | |
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176 | puts( "Init - starting the read task" ); |
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177 | status = rtems_task_start( readTaskID, read_task, 0 ); |
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178 | rtems_test_assert( status == 0 ); |
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179 | |
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180 | puts( "Init - waiting at a barrier" ); |
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181 | status = rtems_barrier_wait( wBarrier, RTEMS_NO_TIMEOUT ); |
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182 | rtems_test_assert( status == RTEMS_SUCCESSFUL ); |
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183 | |
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184 | puts("Init - opening the fifo in write only mode -- OK"); |
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185 | fd = open("/fifo", O_WRONLY); |
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186 | if(fd <= 0) { |
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187 | printf("Error opening file: (%d) :: %s\n", errno, strerror(errno)); |
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188 | rtems_test_assert(0); |
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189 | } |
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190 | |
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191 | puts( "Init - writing to /fifo" ); |
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192 | status = write(fd, sendBuf, 0 ); |
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193 | rtems_test_assert( status == 0 ); |
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194 | |
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195 | puts( "Init - releasing the read_task" ); |
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196 | status = rtems_barrier_release( rBarrier, &released ); |
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197 | rtems_test_assert( status == 0 ); |
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198 | |
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199 | puts( "Init - waiting at a barrier" ); |
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200 | status = rtems_barrier_wait( wBarrier, RTEMS_NO_TIMEOUT ); |
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201 | rtems_test_assert( status == RTEMS_SUCCESSFUL ); |
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202 | |
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203 | puts( "Init - writing to /fifo - OK" ); |
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204 | status = write(fd, sendBuf, SEND_RCV_BUFSIZ - 30 ); |
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205 | rtems_test_assert( status == SEND_RCV_BUFSIZ - 30 ); |
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206 | |
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207 | puts( "Init - writing to /fifo - OK" ); |
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208 | status = write(fd, sendBuf+SEND_RCV_BUFSIZ - 30, 30 ); |
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209 | rtems_test_assert( status == 30 ); |
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210 | |
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211 | puts( "Init - releasing the read_task" ); |
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212 | status = rtems_barrier_release( rBarrier, &released ); |
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213 | rtems_test_assert( status == 0 ); |
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214 | |
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215 | puts( "Init - waiting at a barrier" ); |
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216 | status = rtems_barrier_wait( wBarrier, RTEMS_NO_TIMEOUT ); |
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217 | rtems_test_assert( status == RTEMS_SUCCESSFUL ); |
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218 | |
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219 | puts( "Init - converting the write-mode to non-block" ); |
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220 | status = ioctl( fd, FIONBIO, &flag ); |
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221 | rtems_test_assert( status == 0 ); |
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222 | |
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223 | puts( "Init - writing to /fifo - OK" ); |
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224 | status = write(fd, sendBuf, SEND_RCV_BUFSIZ - 30 ); |
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225 | rtems_test_assert( status == SEND_RCV_BUFSIZ - 30 ); |
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226 | |
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227 | puts( "Init - writing to /fifo - Expect EAGAIN" ); |
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228 | status = write(fd, sendBuf, SEND_RCV_BUFSIZ - 30 ); |
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229 | rtems_test_assert( status == -1 ); |
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230 | rtems_test_assert( errno == EAGAIN ); |
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231 | |
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232 | puts( "Init - releasing the read_task" ); |
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233 | status = rtems_barrier_release( rBarrier, &released ); |
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234 | rtems_test_assert( status == 0 ); |
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235 | |
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236 | puts( "Init - waiting at a barrier" ); |
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237 | status = rtems_barrier_wait( wBarrier, RTEMS_NO_TIMEOUT ); |
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238 | rtems_test_assert( status == RTEMS_SUCCESSFUL ); |
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239 | |
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240 | puts( "Init - writing to /fifo - Expect EPIPE" ); |
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241 | status = write(fd, sendBuf, SEND_RCV_BUFSIZ - 30 ); |
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242 | rtems_test_assert( status == -1 ); |
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243 | rtems_test_assert( errno == EPIPE ); |
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244 | |
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245 | status = close( fd ); |
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246 | rtems_test_assert( status == 0 ); |
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247 | |
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248 | puts( "Removing the fifo" ); |
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249 | status = unlink("/fifo"); |
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250 | rtems_test_assert(status == 0); |
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251 | |
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252 | puts("*** END OF FIFO / PIPE OPEN TEST - 6 ***"); |
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253 | rtems_test_exit(0); |
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254 | } |
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255 | |
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256 | #define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER |
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257 | #define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER |
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258 | |
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259 | #define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM |
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260 | #define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 6 |
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261 | |
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262 | #define CONFIGURE_MAXIMUM_TASKS 3 |
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263 | |
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264 | #define CONFIGURE_RTEMS_INIT_TASKS_TABLE |
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265 | |
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266 | #define CONFIGURE_MAXIMUM_BARRIERS 2 |
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267 | |
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268 | #define CONFIGURE_INIT |
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269 | #define CONFIGURE_FIFOS_ENABLED |
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270 | #define CONFIGURE_MAXIMUM_FIFOS 1 |
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271 | |
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272 | |
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273 | #define CONFIGURE_INIT |
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274 | #include <rtems/confdefs.h> |
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275 | |
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276 | /* end of file */ |
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