f89e8fb71a
This implements the macOS API malloc_good_size() which returns the true allocation size for a given requested allocation size. This allows us to make use of all the available memory in a malloc chunk. For example, for a malloc request of 35 bytes our malloc would internally use a chunk of size 64, however the remaining 29 bytes would be unused. Knowing the true allocation size allows us to request more usable memory that would otherwise be wasted and make that available for Vector, HashTable and potentially other callers in the future.
100 lines
2.9 KiB
C
100 lines
2.9 KiB
C
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <stddef.h>
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#include <sys/cdefs.h>
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#include <sys/types.h>
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__attribute__((warn_unused_result)) int __generate_unique_filename(char* pattern);
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__BEGIN_DECLS
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#define EXIT_SUCCESS 0
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#define EXIT_FAILURE 1
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#define MB_CUR_MAX 1
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__attribute__((malloc)) __attribute__((alloc_size(1))) void* malloc(size_t);
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__attribute__((malloc)) __attribute__((alloc_size(1, 2))) void* calloc(size_t nmemb, size_t);
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size_t malloc_size(void*);
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size_t malloc_good_size(size_t);
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void serenity_dump_malloc_stats(void);
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void free(void*);
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__attribute__((alloc_size(2))) void* realloc(void* ptr, size_t);
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char* getenv(const char* name);
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char* secure_getenv(const char* name);
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int putenv(char*);
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int unsetenv(const char*);
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int clearenv(void);
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int setenv(const char* name, const char* value, int overwrite);
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int atoi(const char*);
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long atol(const char*);
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long long atoll(const char*);
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double strtod(const char*, char** endptr);
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long double strtold(const char*, char** endptr);
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float strtof(const char*, char** endptr);
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long strtol(const char*, char** endptr, int base);
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long long strtoll(const char*, char** endptr, int base);
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unsigned long long strtoull(const char*, char** endptr, int base);
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unsigned long strtoul(const char*, char** endptr, int base);
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void qsort(void* base, size_t nmemb, size_t size, int (*compar)(const void*, const void*));
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void qsort_r(void* base, size_t nmemb, size_t size, int (*compar)(const void*, const void*, void*), void* arg);
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int atexit(void (*function)());
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__attribute__((noreturn)) void exit(int status);
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__attribute__((noreturn)) void abort();
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char* ptsname(int fd);
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int ptsname_r(int fd, char* buffer, size_t);
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int abs(int);
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long labs(long);
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long long int llabs(long long int);
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double atof(const char*);
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int system(const char* command);
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char* mktemp(char*);
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int mkstemp(char*);
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char* mkdtemp(char*);
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void* bsearch(const void* key, const void* base, size_t nmemb, size_t size, int (*compar)(const void*, const void*));
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size_t mbstowcs(wchar_t*, const char*, size_t);
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int mbtowc(wchar_t*, const char*, size_t);
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int wctomb(char*, wchar_t);
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size_t wcstombs(char*, const wchar_t*, size_t);
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char* realpath(const char* pathname, char* buffer);
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__attribute__((noreturn)) void _Exit(int status);
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#define RAND_MAX 32767
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int rand();
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void srand(unsigned seed);
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long int random();
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void srandom(unsigned seed);
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uint32_t arc4random(void);
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void arc4random_buf(void*, size_t);
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uint32_t arc4random_uniform(uint32_t);
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typedef struct {
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int quot;
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int rem;
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} div_t;
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div_t div(int, int);
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typedef struct {
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long quot;
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long rem;
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} ldiv_t;
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ldiv_t ldiv(long, long);
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typedef struct {
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long long quot;
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long long rem;
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} lldiv_t;
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lldiv_t lldiv(long long, long long);
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int posix_openpt(int flags);
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int grantpt(int fd);
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int unlockpt(int fd);
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long getauxval(long type);
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__END_DECLS
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