getS16NoEx() returns true unless syntactical error in conf. #8304
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The getS16NoEx() handler will return true unless there is a `[num_emerge_threads]` line in the `minetest.conf` at which point the excption handler part is reached. Due to the fact that `defaultsettings.cpp` has a default value set for this setting, that never will happen. Because of this, the code will never check the number of threads on the system, and keep `nthreads = 0`. If that happens, the value is changed to `1` and only 1 emerge thread will be used. The default should be set to `1` instead, due to the potential unsafe consequences for the standard sqlite map files, but that should be a separate commit that also adds documentation for that setting. This commit focuses on removing this `hiding` bug instead.
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BTW, I suspect that many settings bugs like this exist. The entire class of getXXNoEx() settings getters are all affected, I think. |
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For regular minetest.conf settings, |
nerzhul
approved these changes
Mar 2, 2019
rubenwardy
pushed a commit
that referenced
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Mar 11, 2019
The getS16NoEx() handler will return true unless there is a `[num_emerge_threads]` line in the `minetest.conf` at which point the excption handler part is reached. Due to the fact that `defaultsettings.cpp` has a default value set for this setting, that never will happen. Because of this, the code will never check the number of threads on the system, and keep `nthreads = 0`. If that happens, the value is changed to `1` and only 1 emerge thread will be used. The default should be set to `1` instead, due to the potential unsafe consequences for the standard sqlite map files, but that should be a separate commit that also adds documentation for that setting. This commit focuses on removing this `hiding` bug instead.
rubenwardy
pushed a commit
that referenced
this pull request
Mar 11, 2019
The getS16NoEx() handler will return true unless there is a `[num_emerge_threads]` line in the `minetest.conf` at which point the excption handler part is reached. Due to the fact that `defaultsettings.cpp` has a default value set for this setting, that never will happen. Because of this, the code will never check the number of threads on the system, and keep `nthreads = 0`. If that happens, the value is changed to `1` and only 1 emerge thread will be used. The default should be set to `1` instead, due to the potential unsafe consequences for the standard sqlite map files, but that should be a separate commit that also adds documentation for that setting. This commit focuses on removing this `hiding` bug instead.
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The getS16NoEx() handler will return true unless there is a
[num_emerge_threads]line in theminetest.confat whichpoint the excption handler part is reached. Due to the fact that
defaultsettings.cpphas a default value set for this setting,that never will happen.
Because of this, the code will never check the number of threads on
the system, and keep
nthreads = 0. If that happens, the value ischanged to
1and only 1 emerge thread will be used.The default should be set to
1instead, due to the potential unsafeconsequences for the standard sqlite map files, but that should be a
separate commit that also adds documentation for that setting. This
commit focuses on removing this
hidingbug instead.