int main(int argc, char **argv)
{
size_t size = 0;
DataBuf buf;
char *data;
assert(databuf_init(&buf, size, DATABUF_FLAG_STRING));
databuf_print(&buf, 1, "after init size=%d", size);
#if 1
data = "a";
assert(databuf_strcat(&buf, data));
databuf_print(&buf, 1, "after strcat(%s)", data);
data = "bb";
assert(databuf_strcat(&buf, data));
databuf_print(&buf, 1, "after strcat(%s)", data);
data = "ccc";
assert(databuf_strcat(&buf, data));
databuf_print(&buf, 1, "after strcat(%s)", data);
#endif
data = databuf_export(&buf);
printf("concatenation=\"%s\"\n", data);
free(data);
#if 0
assert(databuf_init(&buf, size, 0));
databuf_print(&buf, 1, "after init size=%d", size);
size = 8;
data = make_data(size, "a");
assert(databuf_append(&buf, data, size));
databuf_print(&buf, 1, "after append size=%d", size);
assert(databuf_append(&buf, data, size));
free(data);
databuf_print(&buf, 1, "after append size=%d", size);
assert(databuf_advance(&buf, 4));
databuf_print(&buf, 1, "after databuf_advance(%d", 4);
assert(databuf_compress(&buf));
databuf_print(&buf, 1, "after compress");
size = 5;
data = make_data(size, "b");
assert(databuf_append(&buf, data, size));
free(data);
databuf_print(&buf, 1, "after append size=%d", size);
size = 7;
data = make_data(size, "c");
assert(databuf_append(&buf, data, size));
free(data);
databuf_print(&buf, 1, "after append size=%d", size);
databuf_free(&buf);
#endif
exit(0);
}
int databuf_init(DataBuf *db, size_t size, unsigned flags)
{
db->alloc_ptr = NULL;
db->alloc_size = 0;
db->offset = 0;
db->len = 0;
db->max_len = 0;
db->flags = flags;
if (size) {
if ((db->alloc_ptr = malloc(size))) {
db->alloc_size = size;
return 1;
} else {
return -1;
}
}
// For strings intialize with initial NULL terminator
if (flags & DATABUF_FLAG_STRING) databuf_strcat(db, "");
return 1;
}
