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#include "buffer.h"
#include <string.h>
#include <malloc.h>
bool init_growable_buffer(growable_buffer *buffer) {
buffer->size = GROW_SIZE;
buffer->used = 0;
buffer->content = malloc(GROW_SIZE);
if (!buffer->content) {
return false;
}
return true;
}
char* grow_growable_buffer(growable_buffer *buffer, size_t at_least) {
size_t new_size = ((at_least % GROW_SIZE) + 1 ) * GROW_SIZE;
if (new_size < buffer->size){
buffer->content = realloc(buffer->content, new_size);
buffer->size = new_size;
}
return buffer->content;
}
void append_growable_buffer(growable_buffer *buffer, char* content,
size_t length) {
size_t i;
char *buf;
if (buffer->size <= buffer->used + length) {
buf = grow_growable_buffer(buffer, length);
} else {
buf = buffer->content;
}
for (i=0; i<length; i++){
buf[buffer->used + i] = content[i];
}
}
void free_growable_buffer(growable_buffer *buffer) {
free(buffer->content);
buffer->content = NULL;
buffer->used = 0;
buffer->size = 0;
}
bool init_fixed_buffer(fixed_buffer *buffer, char *orig) {
buffer->content = orig;
buffer->size = strlen(orig);
return buffer->content != NULL;
}
void free_fixed_buffer(fixed_buffer *buffer) {
free(buffer->content);
buffer->content = NULL;
buffer->size = 0;
}
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