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Docs » Autodocs » dos.library » CreateProc

NAME

	CreateProc -- Create a new process

SYNOPSIS

	process = CreateProc( name, pri, seglist, stackSize )
D0 D1 D2 D3 D4
struct MsgPort *CreateProc(STRPTR, LONG, BPTR, LONG)

FUNCTION

	CreateProc() creates a new AmigaDOS process of name 'name'.  AmigaDOS
processes are a superset of exec tasks.
A seglist, as returned by LoadSeg(), is passed as 'seglist'.
This represents a section of code which is to be run as a new
process. The code is entered at the first hunk in the segment list,
which should contain suitable initialization code or a jump to
such. A process control structure is allocated from memory and
initialized. If you wish to fake a seglist (that will never
have DOS UnLoadSeg() called on it), use this code:
DS.L 0 ;Align to longword
DC.L 16 ;Segment "length" (faked)
DC.L 0 ;Pointer to next segment
...start of code...
The size of the root stack upon activation is passed as
'stackSize'. 'pri' specifies the required priority of the new
process. The result will be the process msgport address of the new
process, or zero if the routine failed. The argument 'name'
specifies the new process name. A zero return code indicates
error.
The seglist passed to CreateProc() is not freed when it exits; it
is up to the parent process to free it, or for the code to unload
itself.
Under V36 and later, you probably should use CreateNewProc() instead.

INPUTS

	name      - pointer to a null-terminated string
pri - signed long (range -128 to +127)
seglist - BCPL pointer to a seglist
stackSize - integer (must be a multiple of 4 bytes)

RESULT

	process   - pointer to new process msgport

SEE ALSO

CreateNewProc(), LoadSeg(), UnLoadSeg()

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