| ## System Requirements |
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| The `facil.io` library requires Linux / BSD / macOS for proper operation. This is specifically due to the `evio.h` (evented IO) library and it's polling system. |
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| Also, some of the file name resolution schemes (i.e., the one used for the HTTP static file service) also assume a POSIX system. |
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| ## Library Requirements |
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| The `facil.io` library in this folder requires the `fiobj` and `bscrypt` libraries for parts of it's operations. |
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| Specifically: |
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| - The `websockets.h` extension uses the `fiobj` library for caching network data. |
| - The `websockets.h` extension uses the `bscrypt` library in the `Upgrade` stage. |
| - The `fio_cli_helper.h` extension uses the `fiobj` library to manage it's inner data structures. |
| - The `fio2resp.h` is a translation unit between RESP (Redis) objects and `fiobj` objects (facio.io objects). By it's nature, it requires the `fiobj` library. |
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