WORD Pgetpid()

Description:  returns the PID of the calling process.

Opcode:  267  (0x010b)

Availability:  If the MiNT cookie is present.

Binding:  
    move.w  #$010b,-(sp)
    trap    #1
    addq.l  #2,sp
Return value:  The WORD returned contains the Process IDentifier (pid) of the calling process. This PID is unique and uniquely identifies the process among other processes within the system.

Definition:
    A PID is dynamically assigned to a process when it is created. You should make no assumption on the PID a process may have. For the kernel, the PID is a WORD but when you program in C, you should use the pid_t type, which complies with the POSIX standard. The FreeMiNT kernel's PID is always 0. 
    The PID is useful when it is important to identify a process among others in the system. Knowing the PID of a program, it is possible to do a lot of things: send it a signal with Psignal(), look for its name in /proc by searching with a "*.xxx" mask (xxx is the PID of the program which name we wanna know), etc. 


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