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1 /* Portion Copyright © 2008-09 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.*/ |
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2 #undef G_DISABLE_ASSERT |
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3 #undef G_LOG_DOMAIN |
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4 |
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5 #include <errno.h> |
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6 #include <stdlib.h> |
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7 #include <unistd.h> |
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8 #include <stdio.h> |
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9 #include <sys/time.h> |
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10 #include <sys/resource.h> |
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11 |
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12 #include <glib.h> |
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13 |
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14 #ifdef __SYMBIAN32__ |
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15 #include <glib_global.h> |
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16 #include "mrt2_glib2_test.h" |
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17 #endif /*__SYMBIAN32__*/ |
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18 |
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19 |
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20 static int n_children = 3; |
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21 static int n_active_children; |
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22 static int n_iters = 10000; |
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23 static GMainLoop *loop; |
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24 |
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25 static void |
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26 io_pipe (GIOChannel **channels) |
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27 { |
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28 int fds[2]; |
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29 |
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30 if (pipe(fds) < 0) |
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31 { |
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32 g_print ("Cannot create pipe %s\n", g_strerror (errno)); |
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33 g_assert(FALSE && "timeloop failed"); |
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34 #ifdef __SYMBIAN32__ |
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35 testResultXml("timeloop"); |
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36 #endif /* EMULATOR */ |
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37 exit (1); |
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38 } |
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39 |
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40 channels[0] = g_io_channel_unix_new (fds[0]); |
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41 channels[1] = g_io_channel_unix_new (fds[1]); |
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42 } |
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43 |
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44 static gboolean |
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45 read_all (GIOChannel *channel, char *buf, int len) |
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46 { |
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47 gsize bytes_read = 0; |
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48 gsize count; |
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49 GIOError err; |
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50 |
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51 while (bytes_read < len) |
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52 { |
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53 err = g_io_channel_read (channel, buf + bytes_read, len - bytes_read, &count); |
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54 if (err) |
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55 { |
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56 if (err != G_IO_ERROR_AGAIN) |
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57 { |
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58 g_assert(FALSE && "timeloop failed"); |
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59 return FALSE; |
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60 } |
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61 } |
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62 else if (count == 0) |
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63 return FALSE; |
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64 |
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65 bytes_read += count; |
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66 } |
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67 |
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68 return TRUE; |
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69 } |
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70 |
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71 static gboolean |
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72 write_all (GIOChannel *channel, char *buf, int len) |
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73 { |
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74 gsize bytes_written = 0; |
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75 gsize count; |
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76 GIOError err; |
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77 |
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78 while (bytes_written < len) |
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79 { |
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80 err = g_io_channel_write (channel, buf + bytes_written, len - bytes_written, &count); |
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81 if (err && err != G_IO_ERROR_AGAIN) |
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82 return FALSE; |
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83 |
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84 bytes_written += count; |
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85 } |
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86 |
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87 return TRUE; |
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88 } |
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89 |
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90 #ifndef __SYMBIAN32__ |
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91 static void |
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92 run_child (GIOChannel *in_channel, GIOChannel *out_channel) |
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93 #else |
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94 gpointer |
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95 run_child (gpointer data) |
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96 #endif//__SYMBIAN32__ |
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97 { |
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98 int i; |
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99 int val = 1; |
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100 #ifdef __SYMBIAN32__ |
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101 GIOChannel *in_channel,*out_channel; |
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102 #endif//__SYMBIAN32__ |
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103 GTimer *timer = g_timer_new(); |
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104 #ifdef __SYMBIAN32__ |
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105 GIOChannel **channels = data; |
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106 in_channel = channels[0]; |
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107 out_channel = channels[1]; |
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108 #endif//__SYMBIAN32__ |
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109 for (i = 0; i < n_iters; i++) |
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110 { |
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111 write_all (out_channel, (char *)&val, sizeof (val)); |
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112 read_all (in_channel, (char *)&val, sizeof (val)); |
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113 } |
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114 |
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115 val = 0; |
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116 write_all (out_channel, (char *)&val, sizeof (val)); |
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117 |
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118 val = g_timer_elapsed (timer, NULL) * 1000; |
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119 |
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120 write_all (out_channel, (char *)&val, sizeof (val)); |
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121 g_timer_destroy (timer); |
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122 #ifndef __SYMBIAN32__ |
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123 exit (0); |
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124 #else |
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125 return NULL; |
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126 #endif//__SYMBIAN32__ |
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127 } |
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128 |
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129 static gboolean |
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130 input_callback (GIOChannel *source, |
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131 GIOCondition condition, |
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132 gpointer data) |
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133 { |
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134 int val; |
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135 GIOChannel *dest = (GIOChannel *)data; |
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136 |
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137 if (!read_all (source, (char *)&val, sizeof(val))) |
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138 { |
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139 g_print("Unexpected EOF\n"); |
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140 g_assert(FALSE && "timeloop failed"); |
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141 #ifdef __SYMBIAN32__ |
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142 testResultXml("timeloop"); |
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143 #endif /* EMULATOR */ |
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144 exit (1); |
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145 } |
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146 |
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147 if (val) |
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148 { |
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149 write_all (dest, (char *)&val, sizeof(val)); |
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150 |
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151 return TRUE; |
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152 } |
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153 else |
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154 { |
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155 g_io_channel_close (source); |
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156 g_io_channel_close (dest); |
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157 |
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158 g_io_channel_unref (source); |
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159 g_io_channel_unref (dest); |
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160 |
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161 n_active_children--; |
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162 if (n_active_children == 0) |
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163 g_main_loop_quit (loop); |
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164 |
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165 return FALSE; |
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166 } |
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167 } |
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168 |
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169 static void |
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170 create_child (void) |
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171 { |
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172 #ifndef __SYMBIAN32__ |
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173 int pid; |
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174 #else |
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175 GError *err = NULL; |
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176 #endif//__SYMBIAN32__ |
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177 GIOChannel *in_channels[2]; |
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178 GIOChannel *out_channels[2]; |
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179 #ifdef __SYMBIAN32__ |
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180 GIOChannel **sub_channels; |
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181 |
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182 sub_channels = g_new (GIOChannel *, 2); |
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183 |
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184 io_pipe (in_channels); |
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185 io_pipe (out_channels); |
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186 sub_channels[0] = in_channels[0]; |
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187 sub_channels[1] = out_channels[1]; |
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188 |
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189 g_io_add_watch (out_channels[0], G_IO_IN | G_IO_HUP, |
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190 input_callback, in_channels[1]); |
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191 |
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192 g_thread_create(run_child,sub_channels,FALSE,&err); |
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193 #else |
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194 pid = fork (); |
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195 |
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196 if (pid > 0) /* Parent */ |
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197 { |
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198 g_io_channel_close (in_channels[0]); |
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199 g_io_channel_close (out_channels[1]); |
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200 |
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201 g_io_add_watch (out_channels[0], G_IO_IN | G_IO_HUP, |
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202 input_callback, in_channels[1]); |
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203 } |
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204 else if (pid == 0) /* Child */ |
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205 { |
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206 g_io_channel_close (in_channels[1]); |
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207 g_io_channel_close (out_channels[0]); |
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208 |
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209 setsid (); |
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210 |
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211 run_child (in_channels[0], out_channels[1]); |
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212 } |
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213 else /* Error */ |
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214 { |
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215 fprintf (stderr, "Cannot fork: %s\n", g_strerror (errno)); |
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216 exit (1); |
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217 } |
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218 #endif//__SYMBIAN32__ |
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219 } |
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220 |
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221 static double |
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222 difftimeval (struct timeval *old, struct timeval *new) |
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223 { |
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224 return |
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225 (new->tv_sec - old->tv_sec) * 1000. + (new->tv_usec - old->tv_usec) / 1000; |
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226 } |
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227 |
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228 int |
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229 main (int argc, char **argv) |
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230 { |
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231 int i; |
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232 |
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233 #ifdef __SYMBIAN32__ |
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234 g_log_set_handler (NULL, G_LOG_FLAG_FATAL| G_LOG_FLAG_RECURSION | G_LOG_LEVEL_CRITICAL | G_LOG_LEVEL_WARNING | G_LOG_LEVEL_MESSAGE | G_LOG_LEVEL_INFO | G_LOG_LEVEL_DEBUG, &mrtLogHandler, NULL); |
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235 g_set_print_handler(mrtPrintHandler); |
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236 g_thread_init(NULL); |
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237 #endif /*__SYMBIAN32__*/ |
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238 |
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239 |
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240 if (argc > 1) |
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241 n_children = atoi(argv[1]); |
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242 |
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243 if (argc > 2) |
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244 n_iters = atoi(argv[2]); |
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245 |
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246 printf ("Children: %d Iters: %d\n", n_children, n_iters); |
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247 |
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248 n_active_children = n_children; |
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249 for (i = 0; i < n_children; i++) |
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250 create_child (); |
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251 #ifndef __SYMBIAN32__ |
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252 getrusage (RUSAGE_SELF, &old_usage); |
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253 #endif |
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254 loop = g_main_loop_new (NULL, FALSE); |
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255 g_main_loop_run (loop); |
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256 #ifndef __SYMBIAN32__ |
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257 getrusage (RUSAGE_SELF, &new_usage); |
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258 |
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259 printf ("Elapsed user: %g\n", |
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260 difftimeval (&old_usage.ru_utime, &new_usage.ru_utime)); |
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261 printf ("Elapsed system: %g\n", |
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262 difftimeval (&old_usage.ru_stime, &new_usage.ru_stime)); |
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263 printf ("Elapsed total: %g\n", |
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264 difftimeval (&old_usage.ru_utime, &new_usage.ru_utime) + |
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265 difftimeval (&old_usage.ru_stime, &new_usage.ru_stime)); |
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266 printf ("total / iteration: %g\n", |
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267 (difftimeval (&old_usage.ru_utime, &new_usage.ru_utime) + |
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268 difftimeval (&old_usage.ru_stime, &new_usage.ru_stime)) / |
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269 (n_iters * n_children)); |
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270 #endif |
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271 #ifdef __SYMBIAN32__ |
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272 testResultXml("timeloop"); |
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273 #endif /* EMULATOR */ |
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274 |
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275 return 0; |
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276 } |