1987-05-13 14:36:45 +00:00
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DEFINITION MODULE Processes;
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1988-02-19 15:54:01 +00:00
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(*
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Module: Processes
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From: "Programming in Modula-2", 3rd, corrected edition, by N. Wirth
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Version: $Header$
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*)
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1987-05-13 14:36:45 +00:00
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TYPE SIGNAL;
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PROCEDURE StartProcess(P: PROC; n: CARDINAL);
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(* Start a concurrent process with program "P" and workspace of
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size "n"
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*)
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PROCEDURE SEND(VAR s: SIGNAL);
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(* One process waiting for "s" is resumed
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*)
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PROCEDURE WAIT(VAR s: SIGNAL);
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(* Wait for some other process to send "s"
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*)
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PROCEDURE Awaited(s: SIGNAL): BOOLEAN;
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(* Return TRUE if at least one process is waiting for sinal "s".
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*)
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PROCEDURE Init(VAR s: SIGNAL);
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(* Compulsory initialization
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*)
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END Processes.
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