48 lines
940 B
C
48 lines
940 B
C
#include <lib/print.h>
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#include <lib/syscall.h>
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#include <lib/thread.h>
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#define PRIO 255
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#define INFO 233
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#define THREAD_NUM 4
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volatile u64 start_flags[THREAD_NUM];
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void *thread_routine(void *arg)
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{
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u64 thread_id = (u64) arg;
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while (start_flags[thread_id] == 0) ;
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printf("Hello, I am thread %u on cpu %u\n", thread_id,
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usys_get_cpu_id());
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start_flags[(thread_id + 1) % THREAD_NUM] = 1;
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/* usys_exit: just de-schedule itself without reclaiming the resource */
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usys_exit(0);
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return 0;
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}
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int main(int argc, char *argv[])
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{
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int child_thread_cap;
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int i;
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u64 thread_i;
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for (thread_i = 0; thread_i < THREAD_NUM; ++thread_i) {
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start_flags[thread_i] = 0;
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child_thread_cap =
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create_thread(thread_routine, thread_i, PRIO, thread_i % 4);
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if (child_thread_cap < 0)
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printf("Create thread failed, return %d\n",
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child_thread_cap);
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for (i = 0; i < 10000; i++) ;
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}
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start_flags[0] = 1;
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return 0;
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}
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