hedgewars-draft: project_files/frontlib/util/util.c@5143861c83bd (annotated)

7177 bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	1	#include "util.h"
7224 5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	2	#include "logging.h"
7177 bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	3
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	4	#include <stddef.h>
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	5	#include <stdarg.h>
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	6	#include <stdlib.h>
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	7	#include <string.h>
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	8	#include <stdio.h>
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	9
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	10	char flib_asprintf(const char fmt, ...) {
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	11	va_list argp;
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	12	va_start(argp, fmt);
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	13	char *result = flib_vasprintf(fmt, argp);
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	14	va_end(argp);
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	15	return result;
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	16	}
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	17
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	18	char flib_vasprintf(const char fmt, va_list args) {
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	19	char *result = NULL;
7224 5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	20	if(!fmt) {
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	21	flib_log_e("null parameter in flib_vasprintf");
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	22	} else {
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	23	int requiredSize = vsnprintf(NULL, 0, fmt, args)+1; // Figure out how much memory we need,
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	24	if(requiredSize<0) {
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	25	flib_log_e("Error formatting string with template \"%s\" in flib_vasprintf", fmt);
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	26	} else {
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	27	char *tmpbuf = flib_malloc(requiredSize); // allocate it
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	28	if(tmpbuf && vsnprintf(tmpbuf, requiredSize, fmt, args)>=0) { // and then do the actual formatting.
7177 bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	29	result = tmpbuf;
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	30	tmpbuf = NULL;
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	31	}
7224 5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	32	free(tmpbuf);
7177 bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	33	}
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	34	}
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	35	return result;
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	36	}
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	37
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	38	char flib_strdupnull(const char str) {
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	39	if(!str) {
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	40	return NULL;
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	41	}
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	42	return flib_asprintf("%s", str);
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	43	}
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	44
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	45	void flib_bufdupnull(const void buf, size_t size) {
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	46	if(!buf \|\| size==0) {
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	47	return NULL;
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	48	}
7224 5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	49	void *result = flib_malloc(size);
7177 bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	50	if(result) {
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	51	memcpy(result, buf, size);
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	52	}
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	53	return result;
bf6cf4dd847a Implemented public API for letting the engine render maps Medo <smaxein@googlemail.com> parents: diff changeset	54	}
7224 5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	55
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	56	void *flib_malloc(size_t size) {
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	57	void *result = malloc(size);
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	58	if(!result) {
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	59	flib_log_e("Out of memory trying to malloc %zu bytes.", size);
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	60	}
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	61	return result;
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	62	}
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	63
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	64	void *flib_calloc(size_t count, size_t elementsize) {
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	65	void *result = calloc(count, elementsize);
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	66	if(!result) {
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	67	flib_log_e("Out of memory trying to calloc %zu objects of %zu bytes each.", count, elementsize);
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	68	}
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	69	return result;
5143861c83bd Cleanup, refactoring and generally more development in the frontlib Medo <smaxein@googlemail.com> parents: 7179 diff changeset	70	}

author	Medo <smaxein@googlemail.com>
	Tue, 12 Jun 2012 11:25:05 +0200
changeset 7224	5143861c83bd
parent 7179	f84805e6df03
child 7227	1c859f572d72
permissions	-rw-r--r--