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Questions tagged [c-api]

154 questions
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Accessing input and output tensors of a tensorflow 2.0 SavedModel via the C API

I am having trouble running inference from a tensorflow 2.0 SavedModel loaded the C_API, because I cannot access the input and output operations by name. I load the session via TF_LoadSessionFromSavedModel(...) successfully: #include…
javor
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TensorFlow c++ session shared among forked processes stuck

For CPP integration we use TensorFlow lib from here https://www.tensorflow.org/install/lang_c As we saw the first TensorFlow session run is time-consuming for our specific model it took 20s and next time it took 200ms. We strongly limited in time…
user10333
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Tensorflow allocates 4 times more memory in cpu than binary model size

We are using tensorflow C API version 1.13.1 from here https://www.tensorflow.org/install/lang_c Our neural network model frozen_graph.pb size is 230mb with MobileNet architecture. When we loading it, tensorflow allocates about 1.1 gb on first…
user10333
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Segmentation fault when use lua coroutine api and lua_close

I am working on a lua script interrupt project, I want to use std::Stack and lua coroutine to save the context. But when I set stacksize to more than 38, it randomly crashes in lua_resume and lua_close. test.lua: local stacksize = 40 --When changing…
user8101155
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Memory reallocation in TF_SessionRun

I am using TensorFlow with C interface. Documentaion of TF_SessionRun function states: "On success, the tensors corresponding to outputs[0,noutputs-1] are placed in output_values[]. Ownership of the elements of output_values[] is transferred to the…
Michael Burdinov
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Tensorflow c api trace data

I wanted to know how can I get FULL_TRACE Data from Session run using C API Tensorflow. My problem is I found python example but I don't know how to implement it with C API . python example : Run the graph with full trace option with tf.Session()…
dima
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SWIG typedef - Perl array

I have a SWIG file to make many bindings for languages. There is a variable in C source, which is a fixed length list, with integer type. When I'm accessing to that in Perl, that has no items - just shows it's an ARRAY. Same problem was in Python,…
airween
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How to check if two values in Lua are primitively equal?

When overriding equality operators in Lua (via the "__eq" metamethod), is there a way to still check for primitive equality (ie. not calling the overridden __eq, but checking if the two table values are referentially the same?) I need to do this…
BadZen
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Why do lists have a __reverse__() special method but tuples don't in Python?

The reversed(seq) built-in in Python indicates that seq must have a __reversed__() method or support the sequence protocol. Lists and tuples both obviously support the sequence protocol, but lists have their own __reversed__() method used instead.…
Eric Hansen
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EXEC_BAD_INSTRUCTION (code=1, address=0xe) with MusicSequenceBarBeatTimeToBeats in Swift 2

I have problem when using Apples MusicSequence C API in Swift 2. I can't figure out how to get rid of EXEC_BAD_INSTRUCTION when calling MusicSequenceBarBeatTimeToBeats. I have tried a lot of different solutions found on internet, but nothing seems…
Gustaf
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Excel C API equivalent of Interop Range.Value in C#

Trying to figure out how to read the contents of a reference and get same results and Interop/COM's Range.Value...namely that the object[,] returned contains string, DateTime, and doubles. I'm using ExcelDNA (and underlying XlCall.Excel to call C…
Terry
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Is there a way to create C library with Cargo?

I need to create a (static) C library that binds to existing crate. Is there any way Cargo can create this C library for me? I have a crate (e.g. html5ever), and I want Cargo to create a C library based on C-API for that crate.
Daniel Fath
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postgresql jsonb processing with c api

Postgres extension development I am working with C API for postgres-9.4 installed from ubuntu trusty main repo. This might be a silly question, but please bear with me. I would like to use a function that converts a cstring to Jsonb* structure…
iggy
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dbus c api example handle timeout case and unref the pending variable

There is a dbus C api example http://www.matthew.ath.cx/misc/dbus . It is also the on github with improvements https://github.com/wware/stuff/blob/master/dbus-example/dbus-example.c . In the query() function which makes a call and gets a reply, do…
minghua
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dbus how to reconnect to a new session bus daemon

As far as I understand it, a dbus user connects to the session bus daemon if the environment defines two variables like: DBUS_SESSION_BUS_ADDRESS=unix:abstract=/tmp/dbus-1cAnv4I,guid=3a453c40b5034f DBUS_SESSION_BUS_PID=102 If the daemon stops and…
minghua
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