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-rw-r--r--ace/Process_Manager.h248
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diff --git a/ace/Process_Manager.h b/ace/Process_Manager.h
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-/* -*- C++ -*- */
-// $Id$
-
-// ============================================================================
-//
-// = LIBRARY
-// ace
-//
-// = FILENAME
-// Process_Manager.h
-//
-// = AUTHOR
-// Doug Schmidt
-//
-// ============================================================================
-
-#if !defined (ACE_PROCESS_MANAGER_H)
-#define ACE_PROCESS_MANAGER_H
-
-#include "ace/Synch.h"
-
-#if 0
-class ACE_Export ACE_Process_Descriptor
- // = Title
- // Information for controlling groups of processs.
-{
-friend class ACE_Process_Manager;
-public:
- enum Process_State
- {
- IDLE,
- SPAWNED,
- RUNNING,
- SUSPENDED,
- TERMINATED
- };
-private:
-
- ACE_Process_Descriptor (void);
-
- pid_t proc_id_;
- // Unique process ID.
-
- int grp_id_;
- // Unique group ID.
-
- Process_State proc_state_;
- // Current state of the process.
-};
-
-// Forward declaration.
-
-class ACE_Process_Control;
-
-class ACE_Export ACE_Process_Manager
- // = TITLE
- // Manages a pool of processs.
- //
- // = DESCRIPTION
- // This class allows operations on groups of processs atomically.
-{
-friend class ACE_Process_Control;
-public:
- enum
- {
- DEFAULT_SIZE = 100
- };
-
- // = Initialization and termination methods.
- ACE_Process_Manager (size_t size = ACE_Process_Manager::DEFAULT_SIZE);
- ~ACE_Process_Manager (void);
-
- int open (size_t size = DEFAULT_SIZE);
- // Initialize the manager with room for SIZE processs.
-
- int close (void);
- // Release all resources.
-
- int spawn (ACE_THR_FUNC func,
- void *args,
- long flags,
- pid_t * = 0,
- u_int priority = 0,
- void *stack = 0,
- size_t stack_size = 0);
- // Create a new process, which executes <func>.
-
- // Returns: on success a unique group id that can be used to control
- // other processs added to the same group. On failure, returns -1.
-
- int spawn_n (int n,
- ACE_THR_FUNC func,
- void *args,
- long flags,
- u_int priority = 0);
- // Create N new processs, all of which execute <func>.
-
- // Returns: on success a unique group id that can be used to control
- // all of the processs in the same group. On failure, returns -1.
-
- void *exit (void *status);
- // Called to clean up when a process exits.
-
- int wait (ACE_Time_Value *timeout = 0);
- // Block until there are no more processs running or <timeout>
- // expires. Returns 0 on success and -1 on failure.
-
- // = Suspend methods.
- int suspend_all (void);
- // Suspend all processs
- int suspend (pid_t);
- // Suspend a single process.
- int suspend_grp (int grp_id);
- // Suspend a group of processs.
-
- // = Resume methods.
- int resume_all (void);
- // Resume all stopped processs
- int resume (pid_t);
- // Resume a single process.
- int resume_grp (int grp_id);
- // Resume a group of processs.
-
- // = Kill methods (send signals...).
- int kill_all (int signum);
- // Send signum to all stopped processs
- int kill (pid_t, int signum);
- // Kill a single process.
- int kill_grp (int grp_id, int signum);
- // Kill a group of processs.
-
- // = Set/get group ids for a particular process id.
- int set_grp (pid_t, int grp_id);
- int get_grp (pid_t, int &grp_id);
-
- void dump (void) const;
- // Dump the state of an object.
-
- ACE_ALLOC_HOOK_DECLARE;
- // Declare the dynamic allocation hooks.
-
-private:
- int resize (size_t);
- // Resize the pool of Process_Descriptors.
-
- int spawn_i (ACE_THR_FUNC func,
- void *args,
- long flags,
- pid_t * = 0,
- u_int priority = 0,
- void *stack = 0,
- size_t stack_size = 0);
- // Create a new process (must be called with locks held).
-
- int find (pid_t p_id);
- // Locate the index of the table slot occupied by <p_id>. Returns
- // -1 if <p_id> is not in the table doesn't contain <p_id>.
-
- int insert_proc (pid_t p_id);
- // Insert a process in the table (checks for duplicates).
- // Omitting the process handle won't work on Win32...
-
- int append_proc (pid_t p_id, ACE_Process_Descriptor::Process_State);
- // Append a process in the table (adds at the end, growing the table
- // if necessary).
-
- void remove_proc (int i);
- // Remove process from the table.
-
- // = The following four methods implement a simple scheme for
- // operating on a collection of processs atomically.
-
- typedef int (ACE_Process_Manager::*PROC_FUNC)(int, int);
-
- int apply_grp (int grp_id, PROC_FUNC, int = 0);
- // Apply <func> to all members of the table that match the <grp_id>.
-
- int apply_all (PROC_FUNC, int = 0);
- // Apply <func> to all members of the table.
-
- int resume_proc (int i);
- // Resume the process at index <i>.
-
- int suspend_proc (int i);
- // Suspend the process at index <i>.
-
- int kill_proc (int i, int signum);
- // Send signal <signum> to the process at index <i>.
-
- ACE_Process_Descriptor *proc_table_;
- // Vector that describes process state within the Process_Manager.
-
- size_t max_table_size_;
- // Maximum number of processs we can manage (should be dynamically
- // allocated).
-
- size_t current_count_;
- // Current number of processs we are managing.
-
- int grp_id_;
- // Keeps track of the next group id to assign.
-};
-
-class ACE_Export ACE_Process_Control
- // = TITLE
- // Used to keep track of a process's activities within its entry
- // point function.
-{
-public:
- ACE_Process_Control (ACE_Process_Manager *tm, int insert = 0);
- // Initialize the process control object. If INSERT != 0, then
- // register the process with the ProcessManager.
-
- ~ACE_Process_Control (void);
- // Implicitly kill the process on exit and remove it from its
- // associated ProcessManager.
-
- void *exit (void *status);
- // Explicitly kill the process on exit and remove it from its
- // associated ProcessManager.
-
- void *status (void *status);
- // Set the exit status (and return existing status).
-
- void *status (void);
- // Get the current exit status.
-
- void dump (void) const;
- // Dump the state of an object.
-
- ACE_ALLOC_HOOK_DECLARE;
- // Declare the dynamic allocation hooks.
-
-private:
- ACE_Process_Manager *tm_;
- // Pointer to the process manager for this block of code.
-
- void *status_;
- // Keeps track of the exit status for the process.
-};
-
-#if defined (__ACE_INLINE__)
-#include "ace/Process_Manager.i"
-#endif /* __ACE_INLINE__ */
-#endif
-
-#endif /* ACE_PROCESS_MANAGER_H */
-
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