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gallium/util: add new comments, assertions in u_debug_refcnt.c

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Reviewed-by: Eduardo Lima Mitev <elima@igalia.com>
This commit is contained in:
Brian Paul 2016-03-04 13:19:34 -07:00
parent b6a607b221
commit 9e6a6bd575
1 changed files with 20 additions and 0 deletions
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20
src/gallium/auxiliary/util/u_debug_refcnt.c
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@ -77,6 +77,9 @@ compare_ptr(void *a, void *b)
}
/**
* Return a small integer serial number for the given pointer.
*/
static boolean
debug_serial(void *p, unsigned *pserial)
{
@ -117,6 +120,9 @@ debug_serial(void *p, unsigned *pserial)
}
/**
* Free the serial number for the given pointer.
*/
static void
debug_serial_delete(void *p)
{
@ -140,10 +146,24 @@ dump_stack(const char *symbols[STACK_LEN])
}
/**
* Log a reference count change to the log file (if enabled).
* This is called via the pipe_reference() and debug_reference() functions,
* basically whenever a reference count is initialized or changed.
*
* \param p the refcount being changed (the value is not changed here)
* \param get_desc a function which will be called to print an object's
* name/pointer into a string buffer during logging
* \param change the reference count change which must be +/-1 or 0 when
* creating the object and initializing the refcount.
*/
void
debug_reference_slowpath(const struct pipe_reference *p,
debug_reference_descriptor get_desc, int change)
{
assert(change >= -1);
assert(change <= 1);
if (debug_refcnt_state < 0)
return;