mallinfo()
Get memory allocation information
Synopsis:
#include <malloc.h>
struct mallinfo mallinfo ( void );
Library:
libc
Use the -l c option to qcc to link against this library. This library is usually included automatically.
Description:
The mallinfo() function returns memory-allocation information in the form of a struct mallinfo:
struct mallinfo {
int arena; /* size of the arena */
int ordblks; /* number of big blocks in use */
int smblks; /* number of small blocks in use */
int hblks; /* number of header blocks in use */
int hblkhd; /* space in header block headers */
int usmblks; /* space in small blocks in use */
int fsmblks; /* memory in free small blocks */
int uordblks; /* space in big blocks in use */
int fordblks; /* memory in free big blocks */
int keepcost; /* penalty if M_KEEP is used -- not used */
};
Note:
Because the members of this structure are of type int, they might overflow if you're working
with allocations that are larger than 2 GB.
Instead of using mallinfo(), call
mallopt()
with the MALLOC_STATS command.
Returns:
A struct mallinfo.
Classification:
| Safety: | |
|---|---|
| Cancellation point | No |
| Interrupt handler | No |
| Signal handler | No |
| Thread | Yes |
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