Subversion Repositories DevTools

/*
        CPP V5 -- Memory management routines.

        source:  mem.c
        started: September 20, 1985
        version: October 15, 1987; March 24, 1988

        Written by Edward K. Ream.
        This software is in the public domain.

        See the read.me file for disclaimer and other information.
*/

#include "cpp.h"
#if defined(MICRO_SOFT) || defined(__WATCOMC__)
#include <malloc.h>
#else
#include <alloc.h>
#endif

/* Define local data structures. */
static long m_tot = 0;  /* Total number of bytes allocated.     */

/*
        Allocate n bytes using calloc(), assumed to get memory from system

        The returned memory IS zeroed.
*/
void *
m_alloc(n)
int n;
{
        register char *p;

        TRACEP("m_alloc", printf("(%d): ", n));

        /* Align the request. */
        while (n & (sizeof(short int)-1) ) {
                n++;
        }

        p = calloc(1, (unsigned) n);
        if (p == NULL) {
                printf("sorry, out of memory\n");
                m_stat();
                exit(BAD_EXIT);
        }

        /* Update statistics. */
        m_tot += (long) n;

        TRACEN("m_alloc", printf("returns %p\n", p));
        return p;
}

/*
        Free memory allocated by m_alloc().
*/
void
m_free(p)
void *p;
{
        TRACEP("m_free", printf("(%p)\n", p));

        if (p == NULL) {
                syserr("m_free: trying to free a NULL pointer.");
        }
        else {
                free(p);
        }
}

/*
        Print statistics about memory manager.
*/
void
m_stat()
{
        TRACEP("m_stat", printf("m_tot: %ld (0x%lx)\n", m_tot, m_tot));
}