Fix curly braces style Remove useless empty lines

Use apr_pstrmemdup instead of apr_pstrndup when this is safe.

mod_lbmethod_heartbeat, mod_heartmonitor: Respect DefaultRuntimeDir/ DEFAULT_REL_RUNTIMEDIR for the heartbeat storage file.

Various fixes for log message tags: - Remove tags in ssl_log_ssl_error() and ssl_log_cert_error() - Instead add tags to various ssl_log_xerror, ssl_log_cxerror calls (ssl_log_rxerror is unused). - likewise for modssl_proxy_info_log() - Fix spelling of APLOG_NOERRNO in coccinelle script - add support for ssl_log_*error and ap_log_cserror - add some more tags missing due to APLOG_NOERRNO spelling error - Remove tags from example modules (we don't want people to blindly copy those)

Remove usage of APLOG_NOERRNO. It has been a no-op since at least 2.0.x

Change the provider names to match the module names: mod_slotmem_shm: shared -> shm mod_socache_memcache: mc -> memcache

Add lots of unique tags to error log messages

mod_proxy: Make ap_proxy_retry_worker() into an optional function. Allows mod_lbmethod_bybusyness, mod_lbmethod_byrequests, mod_lbmethod_bytraffic and mod_lbmethod_heartbeat to be loaded without mod_proxy yet being present, which happens when modules are loaded in alphabetical order.

Cleanup effort in prep for GA push: Trim trailing whitespace... no func change

Create wrapper API for apr_random; use in mod_lbmethod_heartbeat and mod_serf to - replace some needles use of apr_generate_random_bytes - remove code duplication

fix def'n of AP_SLOTMEM_PROVIDER_VERSION, use it

Cleanup... most don't need apr_hooks.h at all...

Use ap_state_query() to fix many modules that were not correctly initializing if they were not active during server startup but got enabled later during a graceful restart (in which case they need to do all work during a single config run).

More movement to shared stuff...

Use the new APLOG_USE_MODULE/AP_DECLARE_MODULE macros everywhere to take advantage of per-module loglevels

Elaborate on low hanging XXX fruit

When pick was zero no worker where choosen.

Oops the slotmem uses apr_time_now. Can't use stat on shared memory :-)

Try to have consistent interface regardless of slotmem or file-based.

Add port in the logic.

typo.

mark some private module data as "static", resolving a duplicate definition error from the linker

fix type mismatch in argument to attach() method

Put the hm_slot_server_t in a common include.

* Silence compiler warnings about unused variables.

Add use slotmem. Directive HeartbeatMaxServers > 10 to activate the logic. Otherwise it uses the file logic to store the heartbeats.

server_rec *r... Oops should be server_rec *s.

Arrange the proxy_balancer_method: - Put context back after the finder(). - Use server_rec as second parameter for reset() and age(). - Add the call for reset().

Change the order of mod_proxy and mod_proxy_balancer child_init(). Change the balancer workers area to the address of workers instead copying the workers. Arrange lbmethod accordingly. Move the creation of conf->forward worker to mod_proxy child_init().

Fold in initial template for methods to be able to reset (initialize) and "age" their data, useful when adding new workers, or when workers come back into the fold.... Logic and code to come in a bit :)

Fix C90 forbids mixed declarations and code.

Make the max time from when we last saw a host a compile time option. Suggested by: Ruediger Pluem

And move the HB balancer there