/******************************************************************************
 * Spine Runtimes Software License
 * Version 2.1
 * 
 * Copyright (c) 2013, Esoteric Software
 * All rights reserved.
 * 
 * You are granted a perpetual, non-exclusive, non-sublicensable and
 * non-transferable license to install, execute and perform the Spine Runtimes
 * Software (the "Software") solely for internal use. Without the written
 * permission of Esoteric Software (typically granted by licensing Spine), you
 * may not (a) modify, translate, adapt or otherwise create derivative works,
 * improvements of the Software or develop new applications using the Software
 * or (b) remove, delete, alter or obscure any trademarks or any copyright,
 * trademark, patent or other intellectual property or proprietary rights
 * notices on or in the Software, including any copy thereof. Redistributions
 * in binary or source form must include this license and terms.
 * 
 * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
 * EVENT SHALL ESOTERIC SOFTARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *****************************************************************************/

#include <spine/extension.h>
#include <stdio.h>

static void* (*mallocFunc) (size_t size) = malloc;
static void* (*debugMallocFunc) (size_t size, const char* file, int line) = NULL;
static void (*freeFunc) (void* ptr) = free;

void* _malloc (size_t size, const char* file, int line) {
	if(debugMallocFunc)
		return debugMallocFunc(size, file, line);

	return mallocFunc(size);
}
void* _calloc (size_t num, size_t size, const char* file, int line) {
	void* ptr = _malloc(num * size, file, line);
	if (ptr) memset(ptr, 0, num * size);
	return ptr;
}
void _free (void* ptr) {
	freeFunc(ptr);
}

void _setDebugMalloc(void* (*malloc) (size_t size, const char* file, int line)) {
	debugMallocFunc = malloc;
}

void _setMalloc (void* (*malloc) (size_t size)) {
	mallocFunc = malloc;
}
void _setFree (void (*free) (void* ptr)) {
	freeFunc = free;
}

char* _readFile (const char* path, int* length) {
	char *data;
	FILE *file = fopen(path, "rb");
	if (!file) return 0;

	fseek(file, 0, SEEK_END);
	*length = (int)ftell(file);
	fseek(file, 0, SEEK_SET);

	data = MALLOC(char, *length);
	fread(data, 1, *length, file);
	fclose(file);

	return data;
}