note description: "[ Garbage collector statistics. This class may be used as ancestor by classes needing its facilities. Time accounting is relevant only if enable_time_accounting (from MEMORY) has been called. ]" library: "Free implementation of ELKS library" status: "See notice at end of class." legal: "See notice at end of class." date: "$Date: 2017-12-26 18:35:31 +0000 (Tue, 26 Dec 2017) $" revision: "$Revision: 101217 $" class GC_INFO inherit MEMORY_STRUCTURE rename make as structure_make export {NONE} make_by_pointer, structure_make, item, shared end MEM_CONST create make feature -- Initialization make (memory: INTEGER_32) -- Fill in statistics for memory type require memory_valid: memory = Incremental_collector or memory = Full_collector do structure_make update (memory) ensure type_set: type = memory end update (memory: INTEGER_32) -- Fill in statistics for memory type require memory_valid: memory = Incremental_collector or memory = Full_collector do gc_stat (item, memory) type := memory ensure type_set: type = memory end feature -- Access type: INTEGER_32 -- Collector type (Full, Collect), -- for type before last call to update cycle_count: INTEGER_32 -- Number of collection cycles for type -- before last call to update do Result := c_count (item) end memory_used: INTEGER_32 -- Total number of bytes used (counting overhead) -- after last cycle for type before last -- call to update do Result := c_mem_used (item) end collected: INTEGER_32 -- Number of bytes collected by the last cycle, -- for type before last call to update do Result := c_mem_collect (item) end collected_average: INTEGER_32 -- Average number of bytes collected by a cycle, -- for type before last call to update do Result := c_mem_avg (item) end real_time: INTEGER_32 -- Real time in centi-seconds used by last cycle -- for type, before last call to update; -- this may not be accurate on systems which do not -- provide a sub-second accuracy clock (typically -- provided on BSD). do Result := c_real_time (item) end real_time_average: INTEGER_32 -- Average amount of real time, in centi-seconds, -- spent in collection cycle, -- for type before last call to update do Result := c_real_avg (item) end real_interval_time: INTEGER_32 -- Real interval time (as opposed to CPU time) between -- two automatically raised cycles, in centi-seconds, -- for type before last call to update do Result := c_real_itime (item) end real_interval_time_average: INTEGER_32 -- Average real interval time between two automatic -- cycles, in centi-seconds, -- for type before last call to update do Result := c_real_iavg (item) end cpu_total_time: REAL_64 -- Amount of application CPU time, in seconds, for type before last call to update do Result := c_cpu_total_time (item) end cpu_time: REAL_64 -- Amount of CPU time, in seconds, spent in cycle, -- for type before last call to update do Result := c_cpu_time (item) end cpu_time_average: REAL_64 -- Average amount of CPU time spent in cycle, -- in seconds, for type before last call to update do Result := c_cpu_avg (item) end cpu_interval_time: REAL_64 -- Amount of CPU time elapsed since between last -- and penultimate cycles for type before -- last call to update do Result := c_cpu_itime (item) end cpu_interval_time_average: REAL_64 -- Average amount of CPU time between two cycles, -- for type before last call to update do Result := c_cpu_iavg (item) end sys_total_time: REAL_64 -- Amount of application kernel time, in seconds, for type before last call to update do Result := c_sys_total_time (item) end sys_time: REAL_64 -- Amount of kernel time, in seconds, spent in cycle, -- for type before last call to update do Result := c_sys_time (item) end sys_time_average: REAL_64 -- Average amount of kernel time spent in cycle, -- for type before last call to update do Result := c_sys_avg (item) end sys_interval_time: REAL_64 -- Amount of kernel time elapsed since between -- the last and the penultimate cycle, -- for type before last call to update do Result := c_sys_itime (item) end sys_interval_time_average: REAL_64 -- Average amount of kernel time between two cycles, -- for type before last call to update do Result := c_sys_iavg (item) end feature {NONE} -- Implementation gc_stat (a_ptr: POINTER; mem: INTEGER_32) -- Initialize `a_ptr used by GC_INFO to retrieve the -- statistics frozen at the time of this call. external "C use %"eif_memory.h%"" alias "eif_gc_stat" end structure_size: INTEGER_32 -- Size of underlying C structure. do Result := c_sizeof_gacstat end feature {NONE} -- C externals c_sizeof_gacstat: INTEGER_32 -- Size of struct gacstat. external "C inline use %"eif_memory.h%"" alias "return sizeof(struct gacstat);" ensure is_class: class end c_count (a_ptr: POINTER): INTEGER_32 -- Access count data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return (EIF_INTEGER) ((struct gacstat *) $a_ptr)->count;" end c_mem_used (a_ptr: POINTER): INTEGER_32 -- Access mem_used data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return (EIF_INTEGER) ((struct gacstat *) $a_ptr)->mem_used;" end c_mem_collect (a_ptr: POINTER): INTEGER_32 -- Access mem_collect data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return (EIF_INTEGER) ((struct gacstat *) $a_ptr)->mem_collect;" end c_mem_avg (a_ptr: POINTER): INTEGER_32 -- Access mem_avg data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return (EIF_INTEGER) ((struct gacstat *) $a_ptr)->mem_avg;" end c_real_time (a_ptr: POINTER): INTEGER_32 -- Access real_time data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return (EIF_INTEGER) ((struct gacstat *) $a_ptr)->real_time;" end c_real_avg (a_ptr: POINTER): INTEGER_32 -- Access real_avg data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return (EIF_INTEGER) ((struct gacstat *) $a_ptr)->real_avg;" end c_real_itime (a_ptr: POINTER): INTEGER_32 -- Access real_itime data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return (EIF_INTEGER) ((struct gacstat *) $a_ptr)->real_itime;" end c_real_iavg (a_ptr: POINTER): INTEGER_32 -- Access real_iavg data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return (EIF_INTEGER) ((struct gacstat *) $a_ptr)->real_iavg;" end c_cpu_total_time (a_ptr: POINTER): REAL_64 -- Access cpu_total_time data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return ((struct gacstat *) $a_ptr)->cpu_total_time;" end c_cpu_time (a_ptr: POINTER): REAL_64 -- Access cpu_time data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return ((struct gacstat *) $a_ptr)->cpu_time;" end c_cpu_avg (a_ptr: POINTER): REAL_64 -- Access cpu_avg data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return ((struct gacstat *) $a_ptr)->cpu_avg;" end c_cpu_itime (a_ptr: POINTER): REAL_64 -- Access cpu_itime data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return ((struct gacstat *) $a_ptr)->cpu_itime;" end c_cpu_iavg (a_ptr: POINTER): REAL_64 -- Access cpu_iavg data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return ((struct gacstat *) $a_ptr)->cpu_iavg;" end c_sys_total_time (a_ptr: POINTER): REAL_64 -- Access sys_total_time data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return ((struct gacstat *) $a_ptr)->sys_total_time;" end c_sys_time (a_ptr: POINTER): REAL_64 -- Access sys_time data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return ((struct gacstat *) $a_ptr)->sys_time;" end c_sys_avg (a_ptr: POINTER): REAL_64 -- Access sys_avg data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return ((struct gacstat *) $a_ptr)->sys_avg;" end c_sys_itime (a_ptr: POINTER): REAL_64 -- Access sys_itime data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return ((struct gacstat *) $a_ptr)->sys_itime;" end c_sys_iavg (a_ptr: POINTER): REAL_64 -- Access sys_iavg data member of a_ptr struct. external "C inline use %"eif_memory.h%"" alias "return ((struct gacstat *) $a_ptr)->sys_iavg;" end 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 GC_INFO
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