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Merge pull request #2415 from take-cheeze/mrbconf_doc

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Add mrbconf document.
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Yukihiro "Matz" Matsumoto
2014-06-24 04:50:27 +09:00
parent c938b2f656 2ec79c6e91
commit 08cfd9e637
1 changed files with 23 additions and 0 deletions
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doc/mrbconf/README.md
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@@ -81,3 +81,26 @@ will be defined as `mrb_int`.
* Default value is 100.
* Ignored when `MRB_GC_FIXED_ARENA` isn't defined.
* Defines fixed GC arena size.
## Memory pool configuration.
`POOL_ALIGNMENT`
* Default value is `4`.
* If you're allocating data types that requires alignment more than default value define the
largest value of required alignment.
`POOL_PAGE_SIZE`
* Default value is `16000`.
* Specifies page size of pool page.
* Smaller the value is increases memory overhead.
## State atexit configuration.
`MRB_FIXED_STATE_ATEXIT_STACK`
* If defined enables fixed size `mrb_state` atexit stack.
* Raises `RuntimeError` when `mrb_state_atexit` call count to same `mrb_state` exceeds
`MRB_FIXED_STATE_ATEXIT_STACK_SIZE`'s value.
`MRB_FIXED_STATE_ATEXIT_STACK_SIZE`
* Default value is `5`.
* If `MRB_FIXED_STATE_ATEXIT_STACK` isn't defined this macro is ignored.