Output path of Google Protobuf Compiler
This blog explains the behavior of the Google Protobuf Compiler (protoc) about where it output the generated files.
Exploring blog of a Software Engineer
There are so many things we do not know
Latest posts
How does CPU predict a branch?
One of the biggest problems for all modern CPUs is the branch prediction. As pipelines are getting longer, the cost of a misprediction will be more expensive. Let's dive into this and explore some implementation techniques of branch prediction!
The Branch Predictor does not work on branch instructions
I used to think that branch prediction only works on branch instructions, or at least instructions, but I later discovered that this was only a small part of the story. In this blog post, I will attempt to clarify this misconception and share what I have learned about how branch prediction works as a critical part of modern CPUs.
Introduction to Modern Processor Architecture (Part 1)
Welcome to the first article in a series about exploring perf, the powerful Linux performance analysis tool. As I delved into perf, I noticed that much of its documentation is scattered across the internet, making it challenging to grasp the full scope of its capabilities. What I feel lacking was a bridge between the high-level software perspective and the low-level architecture that perf provides…
In python everything is an object.
I started learning python for production code today, let's mark this day with some naïve explanation of a trainee python programmer. In python everything is an object.
ReadFile error 998 ERROR_NOACCESS
ReadFile( _In_ HANDLE hFile, _Out_writes_bytes_to_opt_(nNumberOfBytesToRead, *lpNumberOfBytesRead) __out_data_source(FILE) LPVOID lpBuffer, _In_ DWORD nNumberOfBytesToRead, _Out_opt_ LPDWORD lpNumberOfBytesRead, _Inout_opt_ LPOVERLAPPED lpOverlapped ); ReadFile function will verify input buffer at lpBuffer before starting the actual reading operation. So, even if the file s real size is 1 byte,…
How NSIS works
NSIS is a script language, in general, it will read a script file and produce an installer (and uninstaller as well). Let’s dig into NSIS source code. Overview A NSIS installer can be separated in 5 parts: . The exe head: A complete exe file, pre-built for each compression method. . The first header structure: Continue reading How NSIS works
NSIS plugin call for C++
Here is the common signature for all NSIS function: extern C __declspec(dllexport) void _cdecl name( HWND hwndParent, int string_size, TCHAR *variables, stack_t **stacktop, extra_parameters *extra) Basically, this is what the NSIS core engine passes function parameter to the plugin call. For example, when we call plugin_a with plugin_a::do_something \NOUNLOAD $0 $1 , what the core engine Continue…