Bundle lib/capnp_api.h and helpers/capabilityHelper.cpp #301
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LasseBlaauwbroek
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Oct 31, 2023
I'm using Pycapnp in a project, where we compile `.capnp` files directly to Cython instead of using the dynamic interface (for speed). For this, we need access to the `reraise_kj_exception` C function defined by Pycapnp. This is not possible, because Cython does not automatically make this function available to downstream users. My previous solution, in capnproto#301, was rather flawed. The file `capabilityHelper.cpp`, where `reraise_kj_exception` is defined, was bundled into the distribution, so that this file could be included in downstream libraries. This turns out to be a terrible idea, because it redefines a bunch of other things like `ReadPromiseAdapter`. For reasons not entirely clear to me, this leads to segmentation faults. This PR revers capnproto#301. Instead, in this PR I've made `reraise_kj_exception` a Cython-level function, that can be used by downstream libraries. The C-level variant has been renamed to `c_reraise_kj_exception`.
LasseBlaauwbroek
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Nov 5, 2023
I'm using Pycapnp in a project, where we compile `.capnp` files directly to Cython instead of using the dynamic interface (for speed). For this, we need access to the `reraise_kj_exception` C function defined by Pycapnp. This is not possible, because Cython does not automatically make this function available to downstream users. My previous solution, in capnproto#301, was rather flawed. The file `capabilityHelper.cpp`, where `reraise_kj_exception` is defined, was bundled into the distribution, so that this file could be included in downstream libraries. This turns out to be a terrible idea, because it redefines a bunch of other things like `ReadPromiseAdapter`. For reasons not entirely clear to me, this leads to segmentation faults. This PR revers capnproto#301. Instead, in this PR I've made `reraise_kj_exception` a Cython-level function, that can be used by downstream libraries. The C-level variant has been renamed to `c_reraise_kj_exception`.
haata
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Nov 5, 2023
I'm using Pycapnp in a project, where we compile `.capnp` files directly to Cython instead of using the dynamic interface (for speed). For this, we need access to the `reraise_kj_exception` C function defined by Pycapnp. This is not possible, because Cython does not automatically make this function available to downstream users. My previous solution, in #301, was rather flawed. The file `capabilityHelper.cpp`, where `reraise_kj_exception` is defined, was bundled into the distribution, so that this file could be included in downstream libraries. This turns out to be a terrible idea, because it redefines a bunch of other things like `ReadPromiseAdapter`. For reasons not entirely clear to me, this leads to segmentation faults. This PR revers #301. Instead, in this PR I've made `reraise_kj_exception` a Cython-level function, that can be used by downstream libraries. The C-level variant has been renamed to `c_reraise_kj_exception`.
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I'm statically linking against some of the Cython files of Pycapnp. These two files are missing from
package_data. It's a bit awkward to bundlecapabilityHelper.cppand to link to it, but without an import like this fails at runtime.