jtchen2k

Contents

Intro

Conditional Variables are a synchronization primitive in C++ that allows threads to wait for a certain condition to be met[^cppref]. This is useful when you want to coordinate the execution of multiple threads. To use a conditional variable, you will need:

• A conditional variable std::contional_variable cv
• A mutex std::mutex mtx and a lock std::unique_lock<std::mutex> lck(mtx)
• Appropriate wait conditions to check for
• Appropriate notification calls from other threads

jtchen2k

# https://ghostscript.com/docs/9.54.0/VectorDevices.htm#
# Presets (Not recommended as it sets too many properties)
# -dPDFSETTINGS=/screen (screen-view-only quality, 72 dpi images)
# -dPDFSETTINGS=/ebook (low quality, 150 dpi images)
# -dPDFSETTINGS=/printer (high quality, 300 dpi images)
# -dPDFSETTINGS=/prepress (high quality, color preserving, 300 dpi imgs)
# -dPDFSETTINGS=/default (almost identical to /screen)

# Another reference: https://stackoverflow.com/a/72974400/10926869 (include a cmdline )

jtchen2k

" @BillChen2K's Configuration
" V2020.7
syntax on
set rnu!
set nu!
set autoindent
set rulerformat=%35(%2*%<%f%=\ %m%r\ %3l\ %c\ %p%%%) 
set mouse=a
set showmatch
set ruler