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Diffstat (limited to 'doc/extension.rdoc')
| -rw-r--r-- | doc/extension.rdoc | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/doc/extension.rdoc b/doc/extension.rdoc index 7eb173debe..b8fbb787ba 100644 --- a/doc/extension.rdoc +++ b/doc/extension.rdoc @@ -1652,6 +1652,18 @@ int rb_remove_event_hook(rb_event_hook_func_t func) :: Removes the specified hook function. +== Memory usage + +void rb_gc_adjust_memory_usage(ssize_t diff) :: + + Adjusts the amount of registered external memory. You can tell GC how + much memory is used by an external library by this function. Calling + this function with positive diff means the memory usage is increased; + new memory block is allocated or a block is reallocated as larger + size. Calling this function with negative diff means the memory usage + is decreased; a memory block is freed or a block is reallocated as + smaller size. This function may trigger the GC. + == Macros for Compatibility Some macros to check API compatibilities are available by default. |