pthread_create is a UNIX environment thread creation function. Specific format: #include int pthread_create(pthread_t *restrict tidp,const pthread_attr_t *restrict attr,void*(*start_rtn)(void*),void *restrict arg); Return value: if Returns 0 if successful, otherwise returns an error number. When returning successfully, the memory unit pointed to by tidp is set to the thread ID of the newly created thread. The attr parameter is used to specify various thread attributes. The newly created thread starts running from the address of the start_rtn function. This function has only one pointerless parameter arg. If more than one parameter needs to be passed to the start_rtn function, then these parameters need to be put into a structure, and then the address of this structure is used as Parameters of arg
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