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// Fork.h -*- C++ -*- socket library |
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// Copyright (C) 1992,1993,1994 Gnanasekaran Swaminathan <gs4t@virginia.edu> |
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// |
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// Permission is granted to use at your own risk and distribute this software |
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// in source and binary forms provided the above copyright |
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// notice and this paragraph are preserved on all copies. |
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// This software is provided "as is" with no express or implied warranty. |
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// |
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// Version: 17Oct95 1.10 |
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|
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#ifndef FORK_H |
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#define FORK_H |
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|
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#include <unistd.h> |
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#include <sys/types.h> |
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#include <sys/signal.h> |
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|
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class Fork { |
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public: |
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class KillForks { |
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public: |
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KillForks () {} |
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~KillForks (); |
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}; |
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|
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class ForkProcess { |
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friend Fork::KillForks::~KillForks (); |
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|
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static void infanticide_reason (pid_t pid, int status); |
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static void reaper_nohang (int); |
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|
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static ForkProcess* list; |
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public: |
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pid_t pid; |
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const char kill_child; |
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const char reason; |
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ForkProcess* next; |
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|
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ForkProcess (int kill, int give_reason); |
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~ForkProcess (); |
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|
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void kill_process () const; |
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void reap_child () const; |
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|
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static void commit_suicide (int); |
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}; |
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private: |
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static KillForks killall; |
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|
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ForkProcess* process; |
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|
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Fork (Fork&); // no copy constructor definition provided |
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Fork& operator = (Fork&); // no assignment operator definition provided |
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public: |
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Fork (int kill = 0, int reason = 0) |
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: process (new ForkProcess (!!kill, !!reason)) {} |
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~Fork (); |
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|
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int is_child () const { return process->pid == 0; } |
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int is_parent () const { return process->pid > 0; } |
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int process_id () const { return process->pid; } |
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|
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static void suicide_signal (int signo = SIGTERM); |
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}; |
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|
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#endif // FORK_H |
