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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 2 | pj | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
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| 3 | * |
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| 4 | * Coordinators: |
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| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 7 | * |
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| 8 | * Authors : |
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| 9 | * Massimiliano Giorgi <massy@gandalf.sssup.it> |
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| 10 | * (see the web pages for full authors list) |
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| 11 | * |
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| 12 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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| 13 | * |
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| 14 | * http://www.sssup.it |
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| 15 | * http://retis.sssup.it |
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| 16 | * http://shark.sssup.it |
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| 17 | */ |
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| 18 | |||
| 19 | #include <ll/sys/types.h> |
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| 20 | #include <ll/stdlib.h> |
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| 21 | |||
| 22 | #include <kernel/func.h> |
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| 23 | #include <kernel/mem.h> |
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| 24 | #include <kernel/log.h> |
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| 25 | |||
| 26 | #include <trace/types.h> |
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| 27 | #include <trace/trace.h> |
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| 28 | #include <trace/queues.h> |
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| 29 | |||
| 30 | #include <fs/fs.h> |
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| 31 | |||
| 32 | #include <unistd.h> |
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| 33 | #include <fcntl.h> |
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| 34 | #include <limits.h> |
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| 35 | |||
| 36 | typedef struct TAGfixed_queue_t { |
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| 37 | int size; |
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| 38 | int index; |
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| 39 | char *filename; |
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| 40 | int uniq; |
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| 41 | |||
| 42 | trc_event_t table[0]; |
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| 43 | } fixed_queue_t; |
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| 44 | |||
| 45 | static trc_event_t *fixed_get(fixed_queue_t *queue) |
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| 46 | { |
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| 47 | if (queue->index>=queue->size) return NULL; |
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| 48 | return &queue->table[queue->index++]; |
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| 49 | } |
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| 50 | |||
| 51 | static int fixed_post(fixed_queue_t *queue) |
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| 52 | { |
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| 53 | return 0; |
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| 54 | } |
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| 55 | |||
| 56 | static TRC_FIXED_PARMS defaultargs; |
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| 57 | static int once=0; |
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| 58 | |||
| 59 | static int fixed_create(trc_queue_t *queue, TRC_FIXED_PARMS *args) |
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| 60 | { |
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| 61 | fixed_queue_t *ptr; |
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| 62 | |||
| 63 | if (!once) { |
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| 64 | /* well... this func is called when the system is not running! */ |
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| 65 | once=1; |
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| 66 | trc_fixed_default_parms(defaultargs); |
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| 67 | } |
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| 68 | if (args==NULL) args=&defaultargs; |
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| 69 | |||
| 70 | ptr=(fixed_queue_t*)kern_alloc(sizeof(fixed_queue_t)+ |
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| 71 | sizeof(trc_event_t)*(args->size+1)); |
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| 72 | if (ptr==NULL) return -1; |
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| 73 | |||
| 74 | |||
| 75 | queue->get=(trc_event_t*(*)(void*))fixed_get; |
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| 76 | queue->post=(int(*)(void*))fixed_post; |
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| 77 | queue->data=ptr; |
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| 78 | |||
| 79 | ptr->size=args->size; |
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| 80 | ptr->index=0; |
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| 81 | ptr->filename=args->filename; |
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| 82 | return 0; |
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| 83 | } |
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| 84 | |||
| 85 | static TASK fixed_shutdown(fixed_queue_t *queue) |
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| 86 | { |
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| 87 | char pathname[PATH_MAX]; |
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| 88 | int h; |
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| 89 | |||
| 90 | printk(KERN_DEBUG "<fixed queuesize:%i>",queue->index); |
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| 91 | |||
| 92 | if (queue->filename==NULL) trc_create_name("fix",queue->uniq,pathname); |
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| 93 | else trc_create_name(queue->filename,0,pathname); |
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| 94 | |||
| 95 | //sys_status(SCHED_STATUS); |
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| 96 | //task_delay(250000); |
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| 97 | |||
| 98 | h=open("/TEMP/FIX1",O_CREAT|O_TRUNC|O_WRONLY); |
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| 99 | if (h!=-1) { |
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| 100 | write(h,queue->table,queue->index*sizeof(trc_event_t)); |
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| 101 | close(h); |
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| 102 | printk(KERN_NOTICE "tracer file %s created!",pathname); |
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| 103 | } else { |
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| 104 | printk(KERN_NOTICE "tracer file %s not created!",pathname); |
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| 105 | } |
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| 106 | |||
| 107 | resume_fs_shutdown(); |
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| 108 | return NULL; |
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| 109 | } |
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| 110 | |||
| 111 | static int fixed_activate(fixed_queue_t *queue, int uniq) |
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| 112 | { |
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| 113 | queue->uniq=uniq; |
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| 114 | return 0; |
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| 115 | } |
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| 116 | |||
| 117 | static int fixed_terminate(fixed_queue_t *queue) |
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| 118 | { |
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| 119 | SOFT_TASK_MODEL model; |
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| 120 | PID pid; |
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| 121 | |||
| 122 | suspend_fs_shutdown(); |
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| 123 | |||
| 124 | //nrt_task_default_model(model); |
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| 125 | //nrt_task_def_system(model); |
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| 126 | //nrt_task_def_arg(model,queue); |
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| 127 | |||
| 128 | soft_task_default_model(model); |
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| 129 | soft_task_def_system(model); |
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| 130 | soft_task_def_notrace(model); |
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| 131 | soft_task_def_periodic(model); |
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| 132 | soft_task_def_period(model,50000); |
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| 133 | soft_task_def_met(model,10000); |
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| 134 | soft_task_def_wcet(model,10000); |
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| 135 | soft_task_def_arg(model,queue); |
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| 136 | |||
| 137 | pid=task_create("ShutTrcFix",fixed_shutdown,&model,NULL); |
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| 138 | if (pid==-1) { |
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| 139 | printk(KERN_ERR "can't start tracer shutdown task (fixed)"); |
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| 140 | return -1; |
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| 141 | } else |
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| 142 | task_activate(pid); |
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| 143 | |||
| 144 | return 0; |
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| 145 | } |
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| 146 | |||
| 147 | int trc_register_fixed_queue(void) |
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| 148 | { |
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| 149 | int res; |
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| 150 | |||
| 151 | res=trc_register_queuetype(TRC_FIXED_QUEUE, |
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| 152 | (int(*)(trc_queue_t*,void*))fixed_create, |
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| 153 | (int(*)(void*,int))fixed_activate, |
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| 154 | (int(*)(void*))fixed_terminate |
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| 155 | ); |
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| 156 | |||
| 157 | if (res!=0) printk(KERN_WARNING "can't register tracer fixed queue"); |
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| 158 | return res; |
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| 159 | } |