v8  6.2.414(node8.11.3)
V8 is Google's open source JavaScript engine
ResourceConstraints Class Reference

#include <v8.h>

Public Member Functions

 ResourceConstraints ()
void ConfigureDefaults (uint64_t physical_memory, uint64_t virtual_memory_limit)
 V8_DEPRECATE_SOON ("Use max_semi_space_size_in_kb()", int max_semi_space_size())
 V8_DEPRECATE_SOON ("Use set_max_semi_space_size_in_kb(size_t limit_in_kb)", void set_max_semi_space_size(int limit_in_mb))
size_t max_semi_space_size_in_kb () const
void set_max_semi_space_size_in_kb (size_t limit_in_kb)
int max_old_space_size () const
void set_max_old_space_size (int limit_in_mb)
 V8_DEPRECATE_SOON ("max_executable_size_ is subsumed by max_old_space_size_", int max_executable_size() const)
 V8_DEPRECATE_SOON ("max_executable_size_ is subsumed by max_old_space_size_", void set_max_executable_size(int limit_in_mb))
uint32_t * stack_limit () const
void set_stack_limit (uint32_t *value)
size_t code_range_size () const
void set_code_range_size (size_t limit_in_mb)
size_t max_zone_pool_size () const
void set_max_zone_pool_size (const size_t bytes)

Detailed Description

A set of constraints that specifies the limits of the runtime's memory use. You must set the heap size before initializing the VM - the size cannot be adjusted after the VM is initialized.

If you are using threads then you should hold the V8::Locker lock while setting the stack limit and you must set a non-default stack limit separately for each thread.

The arguments for set_max_semi_space_size, set_max_old_space_size, set_max_executable_size, set_code_range_size specify limits in MB.

The argument for set_max_semi_space_size_in_kb is in KB.

Definition at line 6051 of file v8.h.

Constructor & Destructor Documentation

Member Function Documentation

size_t code_range_size ( ) const

Definition at line 6104 of file v8.h.

void ConfigureDefaults ( uint64_t  physical_memory,
uint64_t  virtual_memory_limit 

Configures the constraints with reasonable default values based on the capabilities of the current device the VM is running on.

physical_memoryThe total amount of physical memory on the current device, in bytes.
virtual_memory_limitThe amount of virtual memory on the current device, in bytes, or zero, if there is no limit.
int max_old_space_size ( ) const

Definition at line 6089 of file v8.h.

size_t max_semi_space_size_in_kb ( ) const

Definition at line 6080 of file v8.h.

size_t max_zone_pool_size ( ) const

Definition at line 6108 of file v8.h.

void set_code_range_size ( size_t  limit_in_mb)

Definition at line 6105 of file v8.h.

void set_max_old_space_size ( int  limit_in_mb)

Definition at line 6090 of file v8.h.

void set_max_semi_space_size_in_kb ( size_t  limit_in_kb)

Definition at line 6085 of file v8.h.

void set_max_zone_pool_size ( const size_t  bytes)

Definition at line 6109 of file v8.h.

void set_stack_limit ( uint32_t *  value)

Definition at line 6103 of file v8.h.

uint32_t* stack_limit ( ) const

Definition at line 6101 of file v8.h.

V8_DEPRECATE_SOON ( "Use max_semi_space_size_in_kb()"  ,
int   max_semi_space_size() 

Definition at line 6068 of file v8.h.

V8_DEPRECATE_SOON ( "Use set_max_semi_space_size_in_kb(size_t limit_in_kb)"  ,
void   set_max_semi_space_sizeint limit_in_mb 

Definition at line 6074 of file v8.h.

V8_DEPRECATE_SOON ( "max_executable_size_ is subsumed by max_old_space_size_"  ,
int max_executable_size()  const 

Definition at line 6093 of file v8.h.

V8_DEPRECATE_SOON ( "max_executable_size_ is subsumed by max_old_space_size_"  ,
void   set_max_executable_sizeint limit_in_mb 

Definition at line 6097 of file v8.h.

The documentation for this class was generated from the following file: