《操作系统》的实验代码。
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63 lines
784 B

#include <defs.h>
#include <syscall.h>
#include <stdio.h>
#include <ulib.h>
void
exit(int error_code) {
sys_exit(error_code);
cprintf("BUG: exit failed.\n");
while (1);
}
int
fork(void) {
return sys_fork();
}
int
wait(void) {
return sys_wait(0, NULL);
}
int
waitpid(int pid, int *store) {
return sys_wait(pid, store);
}
void
yield(void) {
sys_yield();
}
int
kill(int pid) {
return sys_kill(pid);
}
int
getpid(void) {
return sys_getpid();
}
//print_pgdir - print the PDT&PT
void
print_pgdir(void) {
sys_pgdir();
}
unsigned int
gettime_msec(void) {
return (unsigned int)sys_gettime();
}
void
lab6_set_priority(uint32_t priority)
{
sys_lab6_set_priority(priority);
}
int
sleep(unsigned int time) {
return sys_sleep(time);
}