Daniel P. Berrange wrote:
The problem is that we need to use pthread_t / pthread_create APIs for other parts of libvirt. libxml2 doesn't provide any portability layer for threads - only for mutexes. Any platform which has pthread_t, already has pthread_mutex_t, so although in theory the pthread_mutex_t is less portable than xmlMutex, in practice the overall portability is the same due to the constraint of needing pthread_t.
Don't be forgetting about Windows. MinGW has a pthread API, and Red Hat also have one[1]. Whether they are the same or not I haven't found out yet.
The one thing I noticed is you need to be careful about pthread_t : on Unix this is usually an int of some sort, but on Windows it's a structure. You might also want to check [2] for some gotchas, particularly around thread cancellation.
Rich. [1] http://sources.redhat.com/pthreads-win32/ [2] http://sources.redhat.com/pthreads-win32/faq.html -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 03798903
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