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Diffstat (limited to 'src/libs/zeroconf/avahi-common/malloc.h')
-rw-r--r-- | src/libs/zeroconf/avahi-common/malloc.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/src/libs/zeroconf/avahi-common/malloc.h b/src/libs/zeroconf/avahi-common/malloc.h new file mode 100644 index 0000000000..ffaac3f3c7 --- /dev/null +++ b/src/libs/zeroconf/avahi-common/malloc.h @@ -0,0 +1,96 @@ +#ifndef foomallochfoo +#define foomallochfoo + +/*** + This file is part of avahi. + + avahi is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as + published by the Free Software Foundation; either version 2.1 of the + License, or (at your option) any later version. + + avahi is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY + or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General + Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with avahi; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 + USA. +***/ + +/** \file malloc.h Memory allocation */ + +#include <sys/types.h> +#include <stdarg.h> +#include <limits.h> +#include <assert.h> + +#include <avahi-common/cdecl.h> +#include <avahi-common/gccmacro.h> + +AVAHI_C_DECL_BEGIN + +/** Allocate some memory, just like the libc malloc() */ +void *avahi_malloc(size_t size) AVAHI_GCC_ALLOC_SIZE(1); + +/** Similar to avahi_malloc() but set the memory to zero */ +void *avahi_malloc0(size_t size) AVAHI_GCC_ALLOC_SIZE(1); + +/** Free some memory */ +void avahi_free(void *p); + +/** Similar to libc's realloc() */ +void *avahi_realloc(void *p, size_t size) AVAHI_GCC_ALLOC_SIZE(2); + +/** Internal helper for avahi_new() */ +static inline void* AVAHI_GCC_ALLOC_SIZE2(1,2) avahi_new_internal(unsigned n, size_t k) { + assert(n < INT_MAX/k); + return avahi_malloc(n*k); +} + +/** Allocate n new structures of the specified type. */ +#define avahi_new(type, n) ((type*) avahi_new_internal((n), sizeof(type))) + +/** Internal helper for avahi_new0() */ +static inline void* AVAHI_GCC_ALLOC_SIZE2(1,2) avahi_new0_internal(unsigned n, size_t k) { + assert(n < INT_MAX/k); + return avahi_malloc0(n*k); +} + +/** Same as avahi_new() but set the memory to zero */ +#define avahi_new0(type, n) ((type*) avahi_new0_internal((n), sizeof(type))) + +/** Just like libc's strdup() */ +char *avahi_strdup(const char *s); + +/** Just like libc's strndup() */ +char *avahi_strndup(const char *s, size_t l); + +/** Duplicate the given memory block into a new one allocated with avahi_malloc() */ +void *avahi_memdup(const void *s, size_t l) AVAHI_GCC_ALLOC_SIZE(2); + +/** Wraps allocator functions */ +typedef struct AvahiAllocator { + void* (*malloc)(size_t size) AVAHI_GCC_ALLOC_SIZE(1); + void (*free)(void *p); + void* (*realloc)(void *p, size_t size) AVAHI_GCC_ALLOC_SIZE(2); + void* (*calloc)(size_t nmemb, size_t size) AVAHI_GCC_ALLOC_SIZE2(1,2); /**< May be NULL */ +} AvahiAllocator; + +/** Change the allocator. May be NULL to return to default (libc) + * allocators. The structure is not copied! */ +void avahi_set_allocator(const AvahiAllocator *a); + +/** Like sprintf() but store the result in a freshly allocated buffer. Free this with avahi_free() */ +char *avahi_strdup_printf(const char *fmt, ... ) AVAHI_GCC_PRINTF_ATTR12; + +/** \cond fulldocs */ +/** Same as avahi_strdup_printf() but take a va_list instead of varargs */ +char *avahi_strdup_vprintf(const char *fmt, va_list ap); +/** \endcond */ + +AVAHI_C_DECL_END + +#endif |