Shaobo Wang questions

• How to detect where my app collapsed in linux
• Can CreateFile() Open one file at the same time in two different thread
• How to determine storage type (SSD drive or HHD .mechanical drive), using C language
• How can I know where the segment of memory is all Zero
• how to get request body in varnish
• Why is this snippet compilable in C? [duplicate]
• Which is faster, writing raw data to a drive, or writing to a file?
• How does mmap work?
• what's the differences between r and rb in fopen
• What does "%.*s" mean in printf?

Shaobo Wang answers