Why sleep() after acquiring a pthread_mutex_lock will block the whole program?

Why sleep() after acquiring a pthread_mutex_lock will block the whole program?

linux unix pthreads

unix

Processes hang on read

c linux unix process ipc

unix

Diff and "--GTYPE-group-format"

unix command-line diff

unix

How to combine multiple small C programs together? [closed]

c shell unix

unix

How to redirect gcc errors to a file in Unix?

unix gcc io redirect io-redirection

unix

'undefined reference' errors when compiling against library

c unix

unix

Validate/recognize version of string represented IP address

c++ c unix network-programming ip

unix

Segmentation fault while copying the string

c unix

unix

How can I print Python's help page straight to stdout?

python unix stdout

unix

Looping through files bash script

bash unix cygwin

unix