Automatic generation produced by ISE Eiffel
note description: "Process status listening timer implemented with thread." legal: "See notice at end of class." status: "See notice at end of class." date: "$Date: 2017-03-31 05:03:02 -0800 (Fri, 31 Mar 2017) $" revision: "$Revision: 100086 $" class interface PROCESS_THREAD_TIMER create make (a_sleep_time: INTEGER_32) -- Set time interval which this timer will be triggered with a_sleep_time. -- Unit of a_sleep_time is milliseconds. require thread_capable: {PLATFORM}.is_thread_capable interval_positive: a_sleep_time > 0 ensure sleep_time_set: sleep_time = a_sleep_time destroyed_set: is_destroyed feature -- Access Arguments: ARGUMENTS_32 -- Arguments that were used to start current execution. -- (from EXECUTION_ENVIRONMENT) ensure -- from EXECUTION_ENVIRONMENT instance_free: class available_cpu_count: NATURAL_32 -- Number of available CPUs. -- (from EXECUTION_ENVIRONMENT) ensure -- from EXECUTION_ENVIRONMENT instance_free: class current_thread_id: POINTER -- Thread identifier of the Current thread -- (from THREAD_ENVIRONMENT) current_working_path: PATH -- Directory of current execution. -- (from EXECUTION_ENVIRONMENT) ensure -- from EXECUTION_ENVIRONMENT instance_free: class result_not_void: Result /= Void Default_shell: STRING_32 -- Default shell -- (from EXECUTION_ENVIRONMENT) ensure -- from EXECUTION_ENVIRONMENT instance_free: class generating_type: TYPE [detachable PROCESS_THREAD_TIMER] -- Type of current object -- (type of which it is a direct instance) -- (from ANY) ensure -- from ANY generating_type_not_void: Result /= Void generator: STRING_8 -- Name of current object's generating class -- (base class of the type of which it is a direct instance) -- (from ANY) ensure -- from ANY generator_not_void: Result /= Void generator_not_empty: not Result.is_empty Home_directory_path: detachable PATH -- Directory name corresponding to the home directory. -- (from EXECUTION_ENVIRONMENT) require -- from EXECUTION_ENVIRONMENT home_directory_supported: Operating_environment.home_directory_supported ensure -- from EXECUTION_ENVIRONMENT instance_free: class item (s: READABLE_STRING_GENERAL): detachable STRING_32 -- Value of s if it is an environment variable and has been set; -- void otherwise. -- (from EXECUTION_ENVIRONMENT) require -- from EXECUTION_ENVIRONMENT s_exists: s /= Void not_has_null_character: not s.has ('%U'.to_character_32) ensure -- from EXECUTION_ENVIRONMENT instance_free: class Root_directory_name: STRING_8 -- Directory name corresponding to the root directory. -- (from EXECUTION_ENVIRONMENT) require -- from EXECUTION_ENVIRONMENT root_directory_supported: Operating_environment.root_directory_supported ensure -- from EXECUTION_ENVIRONMENT instance_free: class result_not_void: Result /= Void starting_environment: HASH_TABLE [STRING_32, STRING_32] -- Table of environment variables when current process starts, -- indexed by variable name -- (from EXECUTION_ENVIRONMENT) ensure -- from EXECUTION_ENVIRONMENT instance_free: class result_attached: Result /= Void Temporary_directory_path: detachable PATH -- Temporary directory name. -- On Windows: %SystemDrive%\Users\%USERNAME%\AppData\Local\Temp (%USERPROFILE%\AppData\Local\Temp). -- On Unix: /tmp and /var/tmp. -- On VMS: /sys$scratch -- Otherwise Void -- (from EXECUTION_ENVIRONMENT) note eis: "name=temporary path", "src=https://en.wikipedia.org/wiki/Temporary_folder", "protocol=Uri" ensure -- from EXECUTION_ENVIRONMENT instance_free: class terminated: BOOLEAN -- True if the thread has terminated. -- (from THREAD) thread_id: POINTER -- Thread-id of the current thread object. -- (from THREAD) User_directory_path: detachable PATH -- Directory name corresponding to the user directory -- On Windows: C:\Users\manus\Documents -- On Unix & Mac: $HOME -- Otherwise Void -- (from EXECUTION_ENVIRONMENT) ensure -- from EXECUTION_ENVIRONMENT instance_free: class feature -- Comparison frozen deep_equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void -- or attached to isomorphic object structures? -- (from ANY) ensure -- from ANY instance_free: class shallow_implies_deep: standard_equal (a, b) implies Result both_or_none_void: (a = Void) implies (Result = (b = Void)) same_type: (Result and (a /= Void)) implies (b /= Void and then a.same_type (b)) symmetric: Result implies deep_equal (b, a) frozen equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void or attached -- to objects considered equal? -- (from ANY) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.is_equal (b)) frozen is_deep_equal alias "≡≡≡" (other: PROCESS_THREAD_TIMER): BOOLEAN -- Are Current and other attached to isomorphic object structures? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY shallow_implies_deep: standard_is_equal (other) implies Result same_type: Result implies same_type (other) symmetric: Result implies other.is_deep_equal (Current) is_equal (other: PROCESS_THREAD_TIMER): BOOLEAN -- Is other attached to an object considered -- equal to current object? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY symmetric: Result implies other ~ Current consistent: standard_is_equal (other) implies Result frozen standard_equal (a: detachable ANY; b: like arg #1): BOOLEAN -- Are a and b either both void or attached to -- field-by-field identical objects of the same type? -- Always uses default object comparison criterion. -- (from ANY) ensure -- from ANY instance_free: class definition: Result = (a = Void and b = Void) or else ((a /= Void and b /= Void) and then a.standard_is_equal (b)) frozen standard_is_equal alias "≜" (other: PROCESS_THREAD_TIMER): BOOLEAN -- Is other attached to an object of the same type -- as current object, and field-by-field identical to it? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY same_type: Result implies same_type (other) symmetric: Result implies other.standard_is_equal (Current) feature -- Status report conforms_to (other: ANY): BOOLEAN -- Does type of current object conform to type -- of other (as per Eiffel: The Language, chapter 13)? -- (from ANY) require -- from ANY other_not_void: other /= Void is_destroyed: BOOLEAN -- Has this timer been destroyed? is_exit_supported: BOOLEAN -- Can `exit` be called? -- (from THREAD) ensure -- from THREAD is_class: class is_last_launch_successful: BOOLEAN -- Was the last call to `launch` or `launch_with_attributes` in current thread -- of execution successful? -- (from THREAD) is_launchable: BOOLEAN -- Can we launch a new thread? -- (from THREAD) same_type (other: ANY): BOOLEAN -- Is type of current object identical to type of other? -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY definition: Result = (conforms_to (other) and other.conforms_to (Current)) feature -- Status setting change_working_path (path: PATH) -- Set the current directory to path -- (from EXECUTION_ENVIRONMENT) environment_launch (s: READABLE_STRING_GENERAL) -- Pass to the operating system an asynchronous request to -- execute s interpreted as a Unicode string. -- If s is empty, use the default shell as command. -- (from EXECUTION_ENVIRONMENT) require -- from EXECUTION_ENVIRONMENT s_not_void: s /= Void ensure -- from EXECUTION_ENVIRONMENT instance_free: class put (value, key: READABLE_STRING_GENERAL) -- Set the environment variable key to value treating both -- value and key as Unicode characters. -- (from EXECUTION_ENVIRONMENT) require -- from EXECUTION_ENVIRONMENT key_exists: key /= Void key_meaningful: not key.is_empty not_key_has_null_character: not key.has ('%U'.to_character_32) value_exists: value /= Void not_value_has_null_character: not value.has ('%U'.to_character_32) ensure -- from EXECUTION_ENVIRONMENT variable_set: return_code = 0 implies ((value.is_empty and then item (key) = Void) or else not value.is_empty and then attached item (key) as k and then k.same_string_general (value)) sleep (nanoseconds: INTEGER_64) -- Suspend thread execution for interval specified in -- nanoseconds (1 nanosecond = 10^(-9) second). -- (from EXECUTION_ENVIRONMENT) require -- from EXECUTION_ENVIRONMENT non_negative_nanoseconds: nanoseconds >= 0 ensure -- from EXECUTION_ENVIRONMENT instance_free: class system (s: READABLE_STRING_GENERAL) -- Pass to the operating system a request to execute s interpreted as a Unicode string. -- If s is empty, use the default shell as command. -- (from EXECUTION_ENVIRONMENT) require -- from EXECUTION_ENVIRONMENT s_exists: s /= Void feature -- Duplication copy (other: PROCESS_THREAD_TIMER) -- Update current object using fields of object attached -- to other, so as to yield equal objects. -- (from ANY) require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_equal: Current ~ other frozen deep_copy (other: PROCESS_THREAD_TIMER) -- Effect equivalent to that of: -- `copy` (other . `deep_twin`) -- (from ANY) require -- from ANY other_not_void: other /= Void ensure -- from ANY deep_equal: deep_equal (Current, other) frozen deep_twin: PROCESS_THREAD_TIMER -- New object structure recursively duplicated from Current. -- (from ANY) ensure -- from ANY deep_twin_not_void: Result /= Void deep_equal: deep_equal (Current, Result) frozen standard_copy (other: PROCESS_THREAD_TIMER) -- Copy every field of other onto corresponding field -- of current object. -- (from ANY) require -- from ANY other_not_void: other /= Void type_identity: same_type (other) ensure -- from ANY is_standard_equal: standard_is_equal (other) frozen standard_twin: PROCESS_THREAD_TIMER -- New object field-by-field identical to other. -- Always uses default copying semantics. -- (from ANY) ensure -- from ANY standard_twin_not_void: Result /= Void equal: standard_equal (Result, Current) frozen twin: PROCESS_THREAD_TIMER -- New object equal to Current -- `twin` calls `copy`; to change copying/twinning semantics, redefine `copy`. -- (from ANY) ensure -- from ANY twin_not_void: Result /= Void is_equal: Result ~ Current feature -- Basic operations frozen default: detachable PROCESS_THREAD_TIMER -- Default value of object's type -- (from ANY) frozen default_pointer: POINTER -- Default value of type POINTER -- (Avoid the need to write p.`default` for -- some p of type POINTER.) -- (from ANY) ensure -- from ANY instance_free: class default_rescue -- Process exception for routines with no Rescue clause. -- (Default: do nothing.) -- (from ANY) frozen do_nothing -- Execute a null action. -- (from ANY) ensure -- from ANY instance_free: class exit -- Exit calling thread. Must be called from the thread itself. -- (from THREAD) require -- from THREAD is_exit_supported: is_exit_supported self: current_thread_id = thread_id frozen launch -- Initialize a new thread running `execute`. -- Set `is_last_launch_successful` to True if successful, False otherwise. -- (from THREAD) require -- from THREAD thread_capable: {PLATFORM}.is_thread_capable is_launchable: is_launchable frozen launch_with_attributes (attr: THREAD_ATTRIBUTES) -- Initialize a new thread running `execute`, using attributes. -- Set `is_last_launch_successful` to True if successful, False otherwise. -- (from THREAD) require -- from THREAD thread_capable: {PLATFORM}.is_thread_capable is_launchable: is_launchable obsolete_sleep (nanoseconds: INTEGER_64) -- Suspend thread execution for interval specified in -- nanoseconds (1 nanosecond = 10^(-9) second). -- (from THREAD) require -- from THREAD self: current_thread_id = thread_id non_negative_nanoseconds: nanoseconds >= 0 feature -- Implementation execute -- Routine executed once current thread starts. feature -- Control destroy -- Destroy timer. require -- from PROCESS_TIMER thread_capable: {PLATFORM}.is_thread_capable process_launcher_not_void: process_launcher /= Void start -- Start timer. require -- from PROCESS_TIMER thread_capable: {PLATFORM}.is_thread_capable process_launcher_not_void: process_launcher /= Void timer_destroyed: is_destroyed wait (a_timeout: INTEGER_32): BOOLEAN -- Wait at most a_timeout milliseconds for current timer to be destroyed. -- If a_timeout is 0, wait infinitly until timer is destroyed. -- Return True if timer is destroyed in a_timeout, otherwise False. -- Timer will be destroyed automatically when launched process has terminated and related io -- redirection has finished. So waiting for timer means wait for a safe status which indicats -- all needed work has finished. require -- from PROCESS_TIMER thread_capable: {PLATFORM}.is_thread_capable process_launcher_not_void: process_launcher /= Void a_timeout_not_negative: a_timeout >= 0 timer_started: has_started feature -- Output Io: STD_FILES -- Handle to standard file setup -- (from ANY) ensure -- from ANY instance_free: class io_not_void: Result /= Void out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY out_not_void: Result /= Void print (o: detachable ANY) -- Write terse external representation of o -- on standard output. -- (from ANY) ensure -- from ANY instance_free: class frozen tagged_out: STRING_8 -- New string containing terse printable representation -- of current object -- (from ANY) ensure -- from ANY tagged_out_not_void: Result /= Void feature -- Platform Operating_environment: OPERATING_ENVIRONMENT -- Objects available from the operating system -- (from ANY) ensure -- from ANY instance_free: class operating_environment_not_void: Result /= Void feature -- Setting set_process_launcher (prc_launcher: PROCESS) -- Set process launcher to which this timer is attached with prc_launcher. -- (from PROCESS_TIMER) require -- from PROCESS_TIMER prc_launcher_not_void: prc_launcher /= Void timer_destroyed: is_destroyed ensure -- from PROCESS_TIMER process_launcher_set: process_launcher = prc_launcher feature -- Status return_code: INTEGER_32 -- Status code set by last call to `system` or `put` -- (from EXECUTION_ENVIRONMENT) feature -- Status reporting has_started: BOOLEAN -- Has this timer started yet? -- (from PROCESS_TIMER) process_launcher: detachable PROCESS -- process launcher to which this timer is attached. -- (from PROCESS_TIMER) sleep_time: INTEGER_32 -- Time in milliseconds for this timer to sleep -- (from PROCESS_TIMER) feature -- Synchronization join -- The calling thread waits for the current child thread to terminate. -- (from THREAD) join_all -- The calling thread waits for all other threads to terminate. -- (from THREAD_CONTROL) join_with_timeout (a_timeout_ms: NATURAL_64): BOOLEAN -- The calling thread waits for the current child thread to -- terminate for at most a_timeout_ms milliseconds. -- True if wait terminates within a_timeout_ms, False otherwise. -- (from THREAD) yield -- The calling thread yields its execution in favor of another -- thread for an OS specific amount of time. -- (from THREAD_CONTROL) invariant mutex_not_void: mutex /= Void -- from PROCESS_TIMER sleep_time_positive: sleep_time > 0 -- from ANY reflexive_equality: standard_is_equal (Current) reflexive_conformance: conforms_to (Current) note copyright: "Copyright (c) 1984-2017, Eiffel Software and others" license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)" source: "[ Eiffel Software 5949 Hollister Ave., Goleta, CA 93117 USA Telephone 805-685-1006, Fax 805-685-6869 Website http://www.eiffel.com Customer support http://support.eiffel.com ]" end -- class PROCESS_THREAD_TIMER -- Generated by Eiffel Studio --
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