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f7e5c1db38
This required couple of internal changes to the isc_mem_debugging. The isc_mem_debugging is now internal to isc_mem unit and there are three new functions: 1. isc_mem_setdebugging() can change the debugging setting for an individual memory context. This is need for the memory contexts used for OpenSSL, libxml and libuv accounting as recording and tracing memory is broken there. 2. isc_mem_debugon() / isc_mem_debugoff() can be used to change default memory debugging flags as well as debugging flags for isc_g_mctx. Additionally, the memory debugging is inconsistent across the code-base. For now, we are keeping the existing flags, but three new environment variables have been added 'ISC_MEM_DEBUGRECORD', 'ISC_MEM_DEBUGTRACE' and 'ISC_MEM_DEBUGUSAGE' to set the global debugging flags at any program using the memory contexts.