pthreads and sockets - Cannot register window class error

[Christopher Faylor]

On Wed, May 05, 2004 at 05:38:35AM -0700, Brian Dessent wrote:
>Jacek Trzmiel wrote:
>
>> void test()
>> {
>>     /* go find out about the desired host machine */
>>     struct hostent *he = gethostbyname(HOST);
>>     if (he == 0) {
>>         perror("gethostbyname");
>>         exit(1);
>>     }
>
>Just a wild guess, but gethostbyname() is probably not reentrant and
>can't be called from threads like that.

Unless HOST is a numeric IP address, gethostbyname should be properly
reentrant.  The only time gethostbyname is not thread safe is when it is
resolving a numeric IP.

cgf

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