Fix all remaining shorten-64-to-32 errors in src/common. Some were genuine problems. Many were compatibility errors with libraries (openssl, zlib) that like predate size_t. Partial backport candidate.
svn:r13665
Re-tune mempool parametes based on testing on peacetime: use smaller chuncks, free them a little more aggressively, and try very hard to concentrate allocations on fuller chunks. Also, lots of new documentation.
svn:r13484
Add a couple of (currently disabled) strategies for trying to avoid using too much ram in memory pools: prefer putting new cells in almost-full chunks, and be willing to free the last empty chunk if we have not needed it for a while. Also add better output to mp_pool_log_status to track how many mallocs a given memory pool strategy is saving us, so we can tune the mempool parameters.
svn:r13428
Add more documentation; change the behavior of read_to_buf_tls to be more consistent. Note a longstanding problem with current read/write interfaces.
svn:r13407
New, slightly esoteric function, tor_malloc_roundup(). While tor_malloc(x) allocates x bytes, tor_malloc_roundup(&x) allocates the same size of chunk it would use to store x bytes, and sets x to the usable size of that chunk.
svn:r12981
Build with fewer compiler warnings on Sun. (This and previous Sun patches are thanks to the tremendously handy services of unix-center.net.)
svn:r10644
Add math functions to round values to the nearest power of 2. Make mempools more careful about making sure that the size of their chunks is a little less than a power of 2, not a little more.
svn:r10304
Fix a bug in displaying memory pool usage. Also dump cell allocation, and track padded_cell_ts as they are allocated and freed, to make sure we are not leaking cells.
svn:r9992
Add code to shrink the cell memory pool by discarding empty chunks that have been empty for the last 60 seconds. Also, instead of having test.c duplicate declarations for exposed functions, put them inside #ifdef foo_PRIVATE blocks in the headers. This prevents bugs where test.c gets out of sync.
svn:r9944
