… | |
… | |
5300 | structure (guaranteed by POSIX but not by ISO C for example), but it also |
5300 | structure (guaranteed by POSIX but not by ISO C for example), but it also |
5301 | assumes that the same (machine) code can be used to call any watcher |
5301 | assumes that the same (machine) code can be used to call any watcher |
5302 | callback: The watcher callbacks have different type signatures, but libev |
5302 | callback: The watcher callbacks have different type signatures, but libev |
5303 | calls them using an C<ev_watcher *> internally. |
5303 | calls them using an C<ev_watcher *> internally. |
5304 | |
5304 | |
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5305 | =item null pointers and integer zero are represented by 0 bytes |
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5306 | |
|
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5307 | Libev uses C<memset> to initialise structs and arrays to C<0> bytes, and |
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|
5308 | relies on this setting pointers and integers to null. |
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5309 | |
5305 | =item pointer accesses must be thread-atomic |
5310 | =item pointer accesses must be thread-atomic |
5306 | |
5311 | |
5307 | Accessing a pointer value must be atomic, it must both be readable and |
5312 | Accessing a pointer value must be atomic, it must both be readable and |
5308 | writable in one piece - this is the case on all current architectures. |
5313 | writable in one piece - this is the case on all current architectures. |
5309 | |
5314 | |