OK, the thread test program is read for platform testing, src/tools/thread_test. You will find the README, Makefile tests, and program output to be very clear and almost error-proof.
Please run it on platforms we support and report back. Thanks. --------------------------------------------------------------------------- Bruce Momjian wrote: > When FreeBSD didn't have gethostbyname_r(), and gethostbyname() wasn't > thread-safe, Marc asked around and found out that the threaded solution > for this is to use getaddrinfo(). This makes sense because > getaddrinfo() is described as: > > getaddrinfo () function is defined for protocol-independent nodename- > to-address translation. It performs functionality of gethostbyname(3) > and getservbyname(3), in more sophisticated manner. > > A number of platforms have getpwuid_r(), but not gethostbyname_r(). I > now realize it is because they are assuming you arew using getaddrinfo(), > which has freeaddrinfo() to free the allocated memory in a thread-safe > manner. > > Right now, we call gethostname() from two places: > > port/getaddrinfo() (if backend) > port/thread.c::pqGethostbyname() > > and pqGethostbyname() (thread-safe) is called only by: > > port/getaddrinfo() (if frontend) > libpq/fe-secure.c > > If we convert fe-secure.c to use getaddrinfo(), then all host address > lookups go through getaddrinfo(). > > Then, if we don't need our port/getaddrinfo(), we don't care about a > non-thread-safe gethostbyname() on that platform. This improves our > thread-safe support. Specifically, it prevents host name lookups from > be serialized by our pthread locks. > > Once everything goes through getaddrinfo(), I will modify my thread test > program to test gethostbyname() threading _only_ if getaddrinfo() > doesn't exist. > > -- > Bruce Momjian | http://candle.pha.pa.us > [EMAIL PROTECTED] | (610) 359-1001 > + If your life is a hard drive, | 13 Roberts Road > + Christ can be your backup. | Newtown Square, Pennsylvania 19073 > > ---------------------------(end of broadcast)--------------------------- > TIP 9: the planner will ignore your desire to choose an index scan if your > joining column's datatypes do not match > -- Bruce Momjian | http://candle.pha.pa.us [EMAIL PROTECTED] | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073 ---------------------------(end of broadcast)--------------------------- TIP 4: Don't 'kill -9' the postmaster
