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1 #include "stdio.h"
2 #include "sys/types.h"
3 #include "unistd.h"
4
5 int main()
6 ......
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pid_t pid=fork()
it has 3 situation for the return result pid
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fork create a new process and it parent live alse when the child process had been created ......
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2.struct thread_pool_token_t &nb ......