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/***********************************************************************
Memory primitives
(c) 1994, 1995 Innobase Oy
Created 5/30/1994 Heikki Tuuri
************************************************************************/
#ifndef ut0mem_h
#define ut0mem_h
#include "univ.i"
#include <string.h>
#include <stdlib.h>
/* The total amount of memory currently allocated from the OS with malloc */
extern ulint ut_total_allocated_memory;
UNIV_INLINE
void*
ut_memcpy(void* dest, void* sour, ulint n);
UNIV_INLINE
void*
ut_memmove(void* dest, void* sour, ulint n);
UNIV_INLINE
int
ut_memcmp(void* str1, void* str2, ulint n);
/**************************************************************************
Allocates memory. Sets it also to zero if UNIV_SET_MEM_TO_ZERO is
defined and set_to_zero is TRUE. */
void*
ut_malloc_low(
/*==========*/
/* out, own: allocated memory */
ulint n, /* in: number of bytes to allocate */
ibool set_to_zero); /* in: TRUE if allocated memory should be set
to zero if UNIV_SET_MEM_TO_ZERO is defined */
/**************************************************************************
Allocates memory. Sets it also to zero if UNIV_SET_MEM_TO_ZERO is
defined. */
void*
ut_malloc(
/*======*/
/* out, own: allocated memory */
ulint n); /* in: number of bytes to allocate */
/**************************************************************************
Tests if malloc of n bytes would succeed. ut_malloc() asserts if memory runs
out. It cannot be used if we want to return an error message. Prints to
stderr a message if fails. */
ibool
ut_test_malloc(
/*===========*/
/* out: TRUE if succeeded */
ulint n); /* in: try to allocate this many bytes */
/**************************************************************************
Frees a memory bloock allocated with ut_malloc. */
void
ut_free(
/*====*/
void* ptr); /* in, own: memory block */
/**************************************************************************
Frees in shutdown all allocated memory not freed yet. */
void
ut_free_all_mem(void);
/*=================*/
UNIV_INLINE
char*
ut_strcpy(char* dest, char* sour);
UNIV_INLINE
ulint
ut_strlen(const char* str);
UNIV_INLINE
int
ut_strcmp(void* str1, void* str2);
/**************************************************************************
Determine the length of a string when it is quoted with ut_strcpyq(). */
UNIV_INLINE
ulint
ut_strlenq(
/*=======*/
/* out: length of the string when quoted */
const char* str, /* in: null-terminated string */
char q); /* in: the quote character */
/**************************************************************************
Make a quoted copy of a string. */
char*
ut_strcpyq(
/*=======*/
/* out: pointer to end of dest */
char* dest, /* in: output buffer */
char q, /* in: the quote character */
const char* src); /* in: null-terminated string */
/**************************************************************************
Make a quoted copy of a fixed-length string. */
char*
ut_memcpyq(
/*=======*/
/* out: pointer to end of dest */
char* dest, /* in: output buffer */
char q, /* in: the quote character */
const char* src, /* in: string to be quoted */
ulint len); /* in: length of src */
/**************************************************************************
Catenates two strings into newly allocated memory. The memory must be freed
using mem_free. */
char*
ut_str_catenate(
/*============*/
/* out, own: catenated null-terminated string */
char* str1, /* in: null-terminated string */
char* str2); /* in: null-terminated string */
/**************************************************************************
Return a copy of the given string. The returned string must be freed
using mem_free. */
char*
ut_strdup(
/*======*/
/* out, own: cnull-terminated string */
char* str); /* in: null-terminated string */
#ifndef UNIV_NONINL
#include "ut0mem.ic"
#endif
#endif
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