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#include "strings_buffer.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
#define max(a,b) ((a) > (b)? (a) : (b))
static void *
mallocc(size_t size)
{
void *p = malloc(size);
if(p == NULL) {
fprintf(stderr, "out of memory\n");
abort();
}
return p;
}
static struct strings_section *
strings_buffer_new2(size_t size, struct strings_section *ss)
{
struct strings_section *p;
p = mallocc(sizeof(struct strings_section));
p->cur_size = p->size = size;
p->cur = p->start = mallocc(size);
p->next = ss;
return p;
}
struct strings_section *
strings_buffer_new(size_t size)
{
return strings_buffer_new2(size, NULL);
}
void
strings_buffer_delete(struct strings_section *ss)
{
while(ss != NULL) {
struct strings_section *p = ss;
ss = ss->next;
free(p->start);
free(p);
}
}
char *
strings_buffer_add(struct strings_section **ss, const char *s)
{
struct strings_section *p;
size_t len = strlen(s)+1;
for(p=*ss; p != NULL; p=p->next) {
if(p->cur_size >= len) {
strcpy(p->cur, s);
p->cur += len;
p->cur_size -= len;
return (p->cur - len);
}
}
p = strings_buffer_new2(max((*ss)->size, len), *ss);
strcpy(p->cur, s);
p->cur += len;
p->cur_size -= len;
*ss = p;
return (p->cur - len);
}
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