-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 All,
First-time httpd hacker, here. I'm looking at: https://bz.apache.org/bugzilla/show_bug.cgi?id=64338 I've found that around line 637 of mod_proxy_balancer.c it looks like I just need to poke a value into the r->subprocess_env like this: apt_table_setn(r->subprocess_env, "BALANCER_WORKER_STATUS", XXX); The question is what "XXX" should be. I need to convert (*worker)->s->status (an unsigned int) into a char*. I can manually malloc a char*, stick it in there, and deallocate it each time back through, but that will leak memory when the pool is recycled and I don't get a chance to free my char*. I can use apt_table_set instead of apt_table_setn but that will make performance suck even more than a single allocation each time mod_proxy handles a request. I can also use something like apr_itoa/apr_ltoa which will allocate from the pool which presumably will be cleaned-up at some point, but... when? I don't know anything about how APR/httpd handle memory management and I'm afraid I'll much it all up if I don't ask this question. So ... what's the right way to do this? A performance optimization is likely to be that most workers (a) have all the same "everything is fine" status and (b) the status doesn't change very often. So maybe having a table of predefined status strings sitting around wouldn't be the worth possible thing in the world; that would avoid many needless memory (re)allocations. Thanks, - -chris -----BEGIN PGP SIGNATURE----- Comment: Using GnuPG with Thunderbird - https://www.enigmail.net/ iQIzBAEBCAAdFiEEMmKgYcQvxMe7tcJcHPApP6U8pFgFAl6QvLgACgkQHPApP6U8 pFgbURAAxphLP8xQwXS7cwBS5ptbTNp2tjAN55ASQjS6f0Z3novjtm1Q7NmWJKIc G6W7ZV/tZTkMuU2xF1uTDP32RPCXZ+gi0SXdbnZdm1ZnpYZrGApbiTM+ymIBiUSU 3Sy/X5QavENDuHgaG+f+9Jq6a4BYYzPgvXmEt2lxgqrfCE2HqmbO4LRnYbeNNBDM xu0esh9ZWKzMhfinYl/AIzWjMcEEEAU2gi5xOuq9luOg+LvQ8BnDchGoS9lCO4eO vOuB6PesUEQ1fLxjCN/OUrNnC1y0OUua/Xfj7v/adZc8QoUdBoxz44x+BKl6reP6 cpqTPEmdPurwAQdFyvnMLkM5Simw+mkybCF184u0YseN+sOaPTrqP5WJufKn9lCF q3CPDt3TuF0RucoMEGaY3W2Rw4NOc5yecFOG1vaVkIatrD81uMDZJCYo2wJpZiiK esWSJ983frbfuerPRGJYKqUol4sPs2Zq5IzDUfWUBeOR+jYcqpFYoW0TKFpwDnAS 7+9dLzQjrW5RJpAdlv+0hkE3xGOACJazXgHr+Un6JJKaNgpp8ThaUVpkzN0gfX+d TJwVGTxA2Vk5GFdSMeEof3v0vXEqQ4P6Wtfc/+glueUI5UxAs7wOukQd06cBgRo7 83gj/nnpxAq1EaRvWUwI1fY8mXflI0+/0sYclf+1Gmn/SKHB2GA= =9SrP -----END PGP SIGNATURE-----
