/usr/include/sfst-1/sfst/mem.h is in libsfst1-1.4-dev 1.4.7b-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 | /*******************************************************************/
/* */
/* FILE mem.h */
/* MODULE mem */
/* PROGRAM SFST */
/* AUTHOR Helmut Schmid, IMS, University of Stuttgart */
/* */
/* PURPOSE memory management functions */
/* */
/*******************************************************************/
#ifndef _MEM_H_
#define _MEM_H_
#include <stdlib.h>
#include <assert.h>
namespace SFST {
#define MEMBUFFER_SIZE 100000
/***************** class Mem *************************************/
class Mem {
private:
struct MemBuffer {
char buffer[MEMBUFFER_SIZE];
struct MemBuffer *next;
};
MemBuffer *first_buffer;
long pos;
void add_buffer() {
MemBuffer *mb=(MemBuffer*)malloc(sizeof(MemBuffer));
if (mb == NULL)
throw "Allocation of memory failed in Mem::add_buffer!";
mb->next = first_buffer;
first_buffer = mb;
pos = 0;
}
public:
Mem() { first_buffer = NULL; add_buffer(); }
~Mem() { clear(); }
void clear() {
while (first_buffer) {
MemBuffer *next = first_buffer->next;
free(first_buffer);
first_buffer = next;
}
pos = 0;
}
void *alloc( size_t n ) {
void *result;
/* do memory alignment to multiples of 4 */
if (n % 4)
n += 4 - (n % 4);
if (first_buffer == NULL || pos+n > MEMBUFFER_SIZE)
add_buffer();
if (pos+n > MEMBUFFER_SIZE)
throw "Allocation of memory block larger than MEMBUFFER_SIZE attempted!";
result = (void*)(first_buffer->buffer + pos);
pos += n;
return result;
}
//class MemError {};
};
}
#endif
|