q_search - search for an entry in a smolq queue

q_search() searches the queue q to find an entry that matches both f and arg.

       No  locks,  so readers may read while we're searching, and writers may write.  If something is read while
       we search, we will still return a positive match for that item, even though it is no longer in the queue.
       If a writer writes we will not notice that write. If this is a problem, for  a  particular  use-case,  an
       external lock will be required.

       The function can fail with any of the errors for sem_getvalue(3).

       Librecast library (liblibrecast, -llibrecast)

       q_search - search for an entry in a smolq queue

       The q_push() function returns 1 if found, zero if not found. On error, -1 is returned and errno is set to
       indicate the error.

q_job_seek(3),   q_pool_create(3),   q_pool_destroy(3),   q_init(3),   q_free(3),  q_push(3),  q_wait(3),
       sem_getvalue(3).

LIBRECAST                                          2023-07-27                                        Q_SEARCH(3)

#include<librecast/q.h>intq_search(q_t*q,void*(*f)(void*),void*restrictarg);

       Compile and link with -llibrecast.