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Rev | Author | Line No. | Line |
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1247 | giacomo | 1 | /* FSF Loader |
2 | * |
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3 | * Load and run a specific set of tasks/contracts |
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4 | * |
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5 | * This is the system indipendent part |
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6 | * |
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7 | * Giacomo Guidi <giacomo@gandalf.sssup.it> |
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8 | * Michael Timarchi <trimarchi@gandalf.sssup.it> |
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9 | * |
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10 | */ |
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11 | |||
12 | #include <kernel/kern.h> //Shark dependent header, it's used only for TASK_OUTPUT debug |
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13 | |||
14 | #include "fsf_contract.h" //Framework main header |
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15 | #include "func.h" //Generic function definitions |
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16 | |||
17 | /* Activate task output debug */ |
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18 | #define TASK_OUTPUT |
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19 | |||
20 | int cal_cycles = 0; //Calibration const, it converts usec in cycles |
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21 | struct timespec zero_time; //Zero time of the simulation |
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22 | extern struct loader_task loader_task_list[]; //Loader task array |
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23 | extern int total_loader_task; //Loader task number |
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24 | |||
25 | /* OS: Oneshot Task: |
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26 | begin |
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27 | - execution |
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28 | end |
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29 | */ |
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30 | void *oneshot_task(void *arg) |
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31 | { |
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32 | long long i,exec_cycles = 0; |
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33 | struct loader_task *l = (struct loader_task *)(arg); |
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34 | char tmp[20]; |
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35 | |||
36 | #ifdef TASK_OUTPUT |
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37 | sprintf(tmp,"[ONESHOT]"); |
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38 | printf_xy((get_current_exec_task() % 5) * 9 + 34,get_current_exec_task() / 5 + 5, GREEN, tmp); |
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39 | #endif |
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40 | |||
41 | exec_cycles = (long long)(TIMESPEC2USEC(&l->exec[l->act_current-1])) * CALIBRATION_DELTA / cal_cycles; |
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42 | |||
43 | for (i=0;i<exec_cycles;i++) |
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44 | __asm__ __volatile__ ("xorl %%eax,%%eax\n\t" |
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45 | "cpuid\n\t" |
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46 | :::"eax","ebx","ecx","edx"); |
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47 | |||
48 | return NULL; |
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49 | |||
50 | } |
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51 | |||
52 | /* CT: Cyclical Task: |
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53 | begin |
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54 | while (1) { |
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55 | - execution |
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56 | - end_cycle |
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57 | } |
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58 | end (never end) |
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59 | */ |
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60 | void *periodic_task(void *arg) |
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61 | { |
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62 | long long i,exec_cycles = 0; |
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63 | int act = 0; |
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64 | struct loader_task *l = (struct loader_task *)(arg); |
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65 | char tmp[20]; |
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66 | |||
67 | while(1) { |
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68 | |||
69 | #ifdef TASK_OUTPUT |
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70 | sprintf(tmp,"C[%06d]",act); |
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71 | printf_xy((get_current_exec_task() % 5) * 9 + 34,get_current_exec_task() / 5 + 5, GREEN, tmp); |
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72 | #endif |
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73 | |||
74 | exec_cycles = (long long)(TIMESPEC2USEC(&l->exec[l->act_current-1])) * CALIBRATION_DELTA / cal_cycles; |
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75 | |||
76 | for (i=0;i<exec_cycles;i++) |
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77 | __asm__ __volatile__ ("xorl %%eax,%%eax\n\t" |
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78 | "cpuid\n\t" |
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79 | :::"eax","ebx","ecx","edx"); |
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80 | |||
81 | generic_task_endcycle(); |
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82 | |||
83 | act++; |
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84 | |||
85 | } |
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86 | |||
87 | return NULL; |
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88 | |||
89 | } |
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90 | |||
91 | /* BT: Background Task: |
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92 | begin |
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93 | while (1) { |
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94 | - execution |
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95 | } |
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96 | end (never end) |
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97 | */ |
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98 | void *back_task(void *arg) |
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99 | { |
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100 | long long i,exec_cycles = 0; |
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101 | int act = 0; |
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102 | struct loader_task *l = (struct loader_task *)(arg); |
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103 | char tmp[20]; |
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104 | |||
105 | while(1) { |
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106 | |||
107 | #ifdef TASK_OUTPUT |
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108 | sprintf(tmp,"B[%06d]",act); |
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109 | printf_xy((get_current_exec_task() % 5) * 9 + 34,get_current_exec_task() / 5 + 5, GREEN, tmp); |
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110 | #endif |
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111 | |||
112 | exec_cycles = (long long)(TIMESPEC2USEC(&l->exec[l->act_current-1])) * CALIBRATION_DELTA / cal_cycles; |
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113 | |||
114 | for (i=0;i<exec_cycles;i++) |
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115 | __asm__ __volatile__ ("xorl %%eax,%%eax\n\t" |
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116 | "cpuid\n\t" |
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117 | :::"eax","ebx","ecx","edx"); |
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118 | |||
119 | act++; |
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120 | |||
121 | } |
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122 | return NULL; |
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123 | |||
124 | } |
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125 | |||
126 | /* Task create */ |
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127 | /* this function create the task struct in memory */ |
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128 | void loader_task_create() |
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129 | { |
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130 | |||
131 | struct loader_task *current = loader_task_list; |
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132 | int i=0, k=0; |
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133 | |||
134 | while (k <total_loader_task) { |
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135 | k++; |
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136 | |||
137 | for (i=0; i < current->number; i++) { |
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138 | |||
139 | pthread_t j; |
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140 | int err = 0; |
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141 | |||
142 | switch(current->task_type) { |
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143 | case PAR_TASK_OS: |
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144 | err = generic_create_thread(generic_get_server_from_contract(current->contract),&j,NULL, |
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145 | oneshot_task,(void *)current,generic_get_task_model(current)); |
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146 | break; |
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147 | case PAR_TASK_BT: |
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148 | err = generic_create_thread(generic_get_server_from_contract(current->contract),&j,NULL, |
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149 | back_task,(void *)current,generic_get_task_model(current)); |
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150 | break; |
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151 | case PAR_TASK_CT: |
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152 | err = generic_create_thread(generic_get_server_from_contract(current->contract),&j,NULL, |
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153 | periodic_task,(void *)current,generic_get_task_model(current)); |
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154 | break; |
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155 | } |
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156 | if (err) { |
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157 | printf("Error fsf task creating\n"); |
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158 | generic_end_simulation(); |
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159 | } |
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160 | |||
161 | } |
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162 | |||
163 | current = &loader_task_list[k]; |
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164 | |||
165 | } |
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166 | |||
167 | printf("Created %d loader tasks\n",k); |
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168 | |||
169 | |||
170 | } |
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171 | |||
172 | /* Main Function */ |
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173 | int start_environment() |
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174 | { |
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175 | |||
176 | struct timespec total = {20,0}; |
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177 | |||
178 | generic_calibrate_cycle(); |
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179 | |||
180 | generic_fsfinit(); |
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181 | |||
182 | loader_task_create(); |
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183 | |||
184 | generic_start_simulation(); |
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185 | |||
186 | generic_set_simulation_time(&total); |
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187 | |||
188 | return 0; |
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189 | |||
190 | } |