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Diffstat (limited to '')
-rw-r--r-- | src/pulse/xmalloc.h | 105 |
1 files changed, 105 insertions, 0 deletions
diff --git a/src/pulse/xmalloc.h b/src/pulse/xmalloc.h new file mode 100644 index 0000000..d1d6968 --- /dev/null +++ b/src/pulse/xmalloc.h @@ -0,0 +1,105 @@ +#ifndef foomemoryhfoo +#define foomemoryhfoo + +/*** + This file is part of PulseAudio. + + Copyright 2004-2006 Lennart Poettering + + PulseAudio 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. + + PulseAudio 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 + General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with PulseAudio; if not, see <http://www.gnu.org/licenses/>. +***/ + +#include <sys/types.h> +#include <stdlib.h> +#include <limits.h> +#include <assert.h> + +#include <pulse/cdecl.h> +#include <pulse/gccmacro.h> +#include <pulse/version.h> + +/** \file + * Memory allocation functions. + */ + +PA_C_DECL_BEGIN + +/** Allocate the specified number of bytes, just like malloc() does. However, in case of OOM, terminate */ +void* pa_xmalloc(size_t l) PA_GCC_MALLOC PA_GCC_ALLOC_SIZE(1); + +/** Same as pa_xmalloc(), but initialize allocated memory to 0 */ +void *pa_xmalloc0(size_t l) PA_GCC_MALLOC PA_GCC_ALLOC_SIZE(1); + +/** The combination of pa_xmalloc() and realloc() */ +void *pa_xrealloc(void *ptr, size_t size) PA_GCC_ALLOC_SIZE(2); + +/** Free allocated memory */ +void pa_xfree(void *p); + +/** Duplicate the specified string, allocating memory with pa_xmalloc() */ +char *pa_xstrdup(const char *s) PA_GCC_MALLOC; + +/** Duplicate the specified string, but truncate after l characters */ +char *pa_xstrndup(const char *s, size_t l) PA_GCC_MALLOC; + +/** Duplicate the specified memory block */ +void* pa_xmemdup(const void *p, size_t l) PA_GCC_MALLOC PA_GCC_ALLOC_SIZE(2); + +/** Internal helper for pa_xnew() */ +static void* _pa_xnew_internal(size_t n, size_t k) PA_GCC_MALLOC PA_GCC_ALLOC_SIZE2(1,2); + +static inline void* _pa_xnew_internal(size_t n, size_t k) { + assert(n < INT_MAX/k); + return pa_xmalloc(n*k); +} + +/** Allocate n new structures of the specified type. */ +#define pa_xnew(type, n) ((type*) _pa_xnew_internal((n), sizeof(type))) + +/** Internal helper for pa_xnew0() */ +static void* _pa_xnew0_internal(size_t n, size_t k) PA_GCC_MALLOC PA_GCC_ALLOC_SIZE2(1,2); + +static inline void* _pa_xnew0_internal(size_t n, size_t k) { + assert(n < INT_MAX/k); + return pa_xmalloc0(n*k); +} + +/** Same as pa_xnew() but set the memory to zero */ +#define pa_xnew0(type, n) ((type*) _pa_xnew0_internal((n), sizeof(type))) + +/** Internal helper for pa_xnew0() */ +static void* _pa_xnewdup_internal(const void *p, size_t n, size_t k) PA_GCC_MALLOC PA_GCC_ALLOC_SIZE2(2,3); + +static inline void* _pa_xnewdup_internal(const void *p, size_t n, size_t k) { + assert(n < INT_MAX/k); + return pa_xmemdup(p, n*k); +} + +/** Same as pa_xnew() but duplicate the specified data */ +#define pa_xnewdup(type, p, n) ((type*) _pa_xnewdup_internal((p), (n), sizeof(type))) + +/** Internal helper for pa_xrenew() */ +static void* _pa_xrenew_internal(void *p, size_t n, size_t k) PA_GCC_MALLOC PA_GCC_ALLOC_SIZE2(2,3); + +static inline void* _pa_xrenew_internal(void *p, size_t n, size_t k) { + assert(n < INT_MAX/k); + return pa_xrealloc(p, n*k); +} + +/** Reallocate n new structures of the specified type. */ +#define pa_xrenew(type, p, n) ((type*) _pa_xrenew_internal(p, (n), sizeof(type))) + +PA_C_DECL_END + +#endif |