mempool-allocfree: Add linked-list malloc allocation This is useful when you want to actually free memory from pool too

lib: pool_unref(NULL) shoud be a no-op

lib: Add i_realloc_type() for i_realloc() that checks for overflows

lib: Add pool_alloconly_create_clean() This partially reverts 2a2beae3a4c1e75b3aeff996781503138e6f24bc

lib: *_new(): Use the new MALLOC_MULTIPLY() macro to avoid overflows Cast the sizeof() result to unsigned int, because it's definitely always enough and in many cases this allows optimizing away the wrap-check.

lib: Simplify static checker's job for i_free() macro.

lib: [ip]_free(mem) is now also guaranteed to set mem=NULL It was already doing it, but updated the macros and comments to make it clear that this won't change in future. Changing this would only make it more likely that bugs occur and the performance improvements would be close to nonexistent.

global: unsigned int:1 -> bool:1 perl -i -pe 's/unsigned int ([^,:;]+):1;/bool $1:1;/' **/*.[ch]

lib: cosmetic - whitespace cleanup in allocator/memory-related code Indentation used spaces. Some trailing whitespace found. $ git diff -w $ Signed-off-by: Phil Carmody <phil@dovecot.fi>

lib: Use __attribute__((returns_nonnull)) for the common memory/string functions. Also added a couple of missing ATTR_MALLOCs.

lib: Changed mempool.h to use inline functions instead of macros. This way we can also mark p_malloc() with ATTR_MALLOC.

liblib: Removed unused system-clean and alloconly-clean mempools. They're just making the code messier and slower.

liblib: Added pool_alloconly_get_total_used/alloc_size() functions. --HG-- branch : HEAD

pool_unref() now takes ** pointer. --HG-- branch : HEAD

Renamed __attr_*__ to ATTR_*. Renamed __attrs_used__ to ATTRS_DEFINED. --HG-- branch : HEAD

Changed .h ifdef/defines to use <NAME>_H format. --HG-- branch : HEAD

Added system_clean_pool. default_pool is now set statically, so it can be changed before calling lib_init(). Use malloc_usable_size() if it's available for asserts and for implementing system_clean_pool. --HG-- branch : HEAD

Don't keep the memory pool virtual functions in the pool structure itself, rather access them via a pointer to a shared virtual function struct. Reduces memory usage a bit. --HG-- branch : HEAD

debug: MEMPOOL_GROWING prefix in alloconly pool names means that when the memory pool needs to be grown, there's no need to log a warning. --HG-- branch : HEAD

Updated pool_alloconly_create_clean() comment --HG-- branch : HEAD

Added pool_alloconly_create_clean() to create an alloconly pool which clears the memory it uses before freeing it. --HG-- branch : HEAD

Use malloc attribute for the most commonly used memory and string allocation functions. Use warn_unused_result attribute for reallocs. --HG-- branch : HEAD

Added p_free_and_null() and did some cleanups. --HG-- branch : HEAD

pool_unref(): set the pool pointer to NULL, so if we're trying to unref it twice we'll do a clean crash. --HG-- branch : HEAD

Added pool_get_exp_grown_size(). Use it for buffers, istreams and ostreams when buffer needs to grow. Optimizes memory usage a bit. --HG-- branch : HEAD

Added p_get_max_easy_alloc_size(). --HG-- branch : HEAD

pool_unref(x): don't set (x) = NULL, it may have been allocated from the pool that was just freed. --HG-- branch : HEAD

Make i_free(), p_free() and pool_unref() calls also set the given parameter to NULL. --HG-- branch : HEAD

Removed pool leak checking stuff, it's not used. --HG-- branch : HEAD

data_stack_pool split into two: unsafe_data_stack_pool which works like before, and a new one which verifies that stack frame stays the same whenever the pool is accessed. --HG-- branch : HEAD

Added pool_get_name(), for debugging mostly. --HG-- branch : HEAD

Added alloconly_pool field for checking if pool supports free() --HG-- branch : HEAD

Added old_size parameter to p_realloc() - we rarely need it and this way each allocation takes 8 bytes less memory. --HG-- branch : HEAD

Naming style changes, finally got tired of most of the typedefs. Also the previous enum -> macro change reverted so that we don't use the highest bit anymore, that's incompatible with old indexes so they will be rebuilt. --HG-- branch : HEAD

Removed pool->realloc_min() which nothing used. A few small fixes to alloc-only pool. --HG-- branch : HEAD

We don't have separate read-write pools, so renamed pool_create(.., FALSE) to pool_alloconly_create(). --HG-- branch : HEAD

We shouldn't cast sizeof() to unsigned int. --HG-- branch : HEAD

Use more warnings with GCC by default. Fixed several warnings. --HG-- branch : HEAD

s/t_try_grow/t_try_realloc/ --HG-- branch : HEAD

size_t fixes for lib/. Changed OFF_T_FORMAT to PRIuOFF_T which is more C99-like. --HG-- branch : HEAD

Initial revision --HG-- branch : HEAD