I just compiled and run a hello world Perl extension,but I don’t know the principle.How does the .pm call .so?
I just compiled and run a hello world Perl extension,but I don’t know the
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I just compiled and run a hello world Perl extension,but I don’t know the principle.How does the .pm call .so?
It doesn’t need to – the binary code defines some variables and functions in the module’s namespace, they can be used just like regular variables. The
.pmfile only needs to ensure that.sois loaded when it is needed. This is done by the DynaLoader module. By inheriting fromDynaLoaderyou make sure that your.sofile is loaded when an unknown method is called on your class.