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-rw-r--r--src/kit/kit-memory.c422
1 files changed, 0 insertions, 422 deletions
diff --git a/src/kit/kit-memory.c b/src/kit/kit-memory.c
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index bf79fea..0000000
--- a/src/kit/kit-memory.c
+++ /dev/null
@@ -1,422 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */
-/***************************************************************************
- *
- * kit-memory.c : Memory management
- *
- * Copyright (C) 2007 David Zeuthen, <david@fubar.dk>
- *
- * Permission is hereby granted, free of charge, to any person
- * obtaining a copy of this software and associated documentation
- * files (the "Software"), to deal in the Software without
- * restriction, including without limitation the rights to use, copy,
- * modify, merge, publish, distribute, sublicense, and/or sell copies
- * of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be
- * included in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
- * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
- * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *
- **************************************************************************/
-
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#define _GNU_SOURCE
-#include <string.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <errno.h>
-
-#ifdef BUILT_R_DYNAMIC
-#include <execinfo.h>
-#endif
-
-#include <kit/kit-memory.h>
-#include <kit/kit-test.h>
-
-/**
- * SECTION:kit-memory
- * @title: Memory management
- * @short_description: Memory management
- *
- * Functions used for memory management.
- **/
-
-#ifdef KIT_BUILD_TESTS
-
-static int _cur_allocs = 0;
-static int _total_allocs = 0;
-static int _fail_nth = -1;
-
-
-#if defined(KIT_BUILD_TESTS) && defined(BUILT_R_DYNAMIC)
-typedef struct _KitAllocationEntry {
- const void *memory;
- void *backtrace[100];
- int backtrace_size;
- struct _KitAllocationEntry *next;
-} KitAllocationEntry;
-
-static KitAllocationEntry *alloc_list_head = NULL;
-#endif
-
-void
-_kit_memory_reset (void)
-{
- _cur_allocs = 0;
- _total_allocs = 0;
- _fail_nth = -1;
-
-#if defined(KIT_BUILD_TESTS) && defined(BUILT_R_DYNAMIC)
- /* TODO: free existing allocs */
- alloc_list_head = NULL;
-#endif
-}
-
-int
-_kit_memory_get_current_allocations (void)
-{
- return _cur_allocs;
-}
-
-int
-_kit_memory_get_total_allocations (void)
-{
- return _total_allocs;
-}
-
-void
-_kit_memory_fail_nth_alloc (int number)
-{
- _fail_nth = number;
-}
-
-static inline void
-_alloc_add (const void *memory)
-{
-#if defined(KIT_BUILD_TESTS) && defined(BUILT_R_DYNAMIC)
- KitAllocationEntry *entry;
-
- entry = malloc (sizeof (KitAllocationEntry));
- entry->memory = memory;
- entry->backtrace_size = backtrace (entry->backtrace, 100);
- entry->next = alloc_list_head;
-
- alloc_list_head = entry;
-#endif
-}
-
-static inline void
-_alloc_remove (const void *memory)
-{
-#if defined(KIT_BUILD_TESTS) && defined(BUILT_R_DYNAMIC)
- KitAllocationEntry *l;
- KitAllocationEntry **prev;
-
- prev = &alloc_list_head;
- for (l = alloc_list_head; l != NULL; l = l->next) {
- if (l->memory == memory) {
- *prev = l->next;
- free (l);
- break;
- }
-
- prev = &(l->next);
- }
-#endif
-}
-
-void
-_kit_memory_print_outstanding_allocations (void)
-{
-#if defined(KIT_BUILD_TESTS) && defined(BUILT_R_DYNAMIC)
- KitAllocationEntry *l;
- for (l = alloc_list_head; l != NULL; l = l->next) {
- int i;
- char **syms;
-
- syms = backtrace_symbols (l->backtrace, l->backtrace_size);
-
- i = 0;
- while (i < l->backtrace_size)
- {
- fprintf (stderr, " %s\n", syms[i]);
- ++i;
- }
- fprintf (stderr, "\n");
- fflush (stderr);
-
- free (syms);
- }
-#endif
-}
-
-
-/**
- * kit_malloc:
- * @bytes: number of 8-bit bytes to allocate
- *
- * Allocate memory
- *
- * Returns: memory location or #NULL on OOM. Free with kit_free().
- */
-void *
-kit_malloc (size_t bytes)
-{
- void *p;
-
- if (_fail_nth != -1 && _total_allocs == _fail_nth) {
- errno = ENOMEM;
- _total_allocs++;
-
- //fprintf (stderr, " Failing alloc @\n");
- //kit_print_backtrace ();
-
- return NULL;
- }
-
- p = malloc (bytes);
-
- if (p != NULL) {
- _cur_allocs++;
- _total_allocs++;
- _alloc_add (p);
- }
-
- return p;
-}
-
-/**
- * kit_malloc0:
- * @bytes: number of 8-bit bytes to allocate
- *
- * Allocate memory and zero it.
- *
- * Returns: memory location or #NULL on OOM. Free with kit_free().
- */
-void *
-kit_malloc0 (size_t bytes)
-{
- void *p;
-
- if (_fail_nth != -1 && _total_allocs == _fail_nth) {
- errno = ENOMEM;
- return NULL;
- }
-
- p = calloc (1, bytes);
-
- if (p != NULL) {
- _cur_allocs++;
- _total_allocs++;
- _alloc_add (p);
- }
-
- return p;
-}
-
-/**
- * kit_realloc:
- * @memory: memory previously allocated
- * @bytes: new size
- *
- * Reallocate memory; like realloc(3).
- *
- * Returns: memory location or #NULL on OOM. Free with kit_free().
- */
-void *
-kit_realloc (void *memory, size_t bytes)
-{
- void *p;
-
- if (memory == NULL)
- return kit_malloc (bytes);
-
- if (bytes == 0) {
- kit_free (memory);
- return memory;
- }
-
- if (_fail_nth != -1 && _total_allocs == _fail_nth) {
- errno = ENOMEM;
- return NULL;
- }
-
- _alloc_remove (p);
- p = realloc (memory, bytes);
- if (p != NULL)
- _alloc_add (p);
-
- return p;
-}
-
-/**
- * kit_free:
- * @memory: pointer to memory allocated with kit_malloc() + friends
- *
- * Free memory allocated by kit_malloc() + friends.
- */
-void
-kit_free (void *memory)
-{
- free (memory);
- if (memory != NULL) {
- _alloc_remove (memory);
- _cur_allocs--;
- }
-}
-
-/*--------------------------------------------------------------------------------------------------------------*/
-#else
-/*--------------------------------------------------------------------------------------------------------------*/
-
-void *
-kit_malloc (size_t bytes)
-{
- return malloc (bytes);
-}
-
-void *
-kit_malloc0 (size_t bytes)
-{
- return calloc (1, bytes);
-}
-
-void *
-kit_realloc (void *memory, size_t bytes)
-{
- return realloc (memory, bytes);
-}
-
-void
-kit_free (void *memory)
-{
- free (memory);
-}
-
-void
-_kit_memory_reset (void)
-{
-}
-
-int
-_kit_memory_get_current_allocations (void)
-{
- return -1;
-}
-
-int
-_kit_memory_get_total_allocations (void)
-{
- return -1;
-}
-
-void
-_kit_memory_fail_nth_alloc (int number)
-{
-}
-
-void
-_kit_memory_print_outstanding_allocations (void)
-{
-}
-
-#endif /* KIT_BUILD_TESTS */
-
-/* There's probably a better place for this function ... */
-
-/**
- * kit_print_backtrace:
- *
- * Print a back trace if built with -rdynamic or similar.
- */
-void
-kit_print_backtrace (void)
-{
-#ifdef BUILT_R_DYNAMIC
- void *bt[500];
- int bt_size;
- int i;
- char **syms;
-
- bt_size = backtrace (bt, 500);
-
- syms = backtrace_symbols (bt, bt_size);
-
- i = 0;
- while (i < bt_size)
- {
- fprintf (stderr, " %s\n", syms[i]);
- ++i;
- }
- fprintf (stderr, "\n");
- fflush (stderr);
-
- free (syms);
-#else
- fprintf (stderr, " Not built with -rdynamic so unable to print a backtrace\n");
-#endif
-}
-
-
-
-
-#ifdef KIT_BUILD_TESTS
-
-static kit_bool_t
-_run_test (void)
-{
- int n;
- char *p;
- char *p2;
-
- if ((p = kit_malloc (1000)) != NULL) {
- for (n = 0; n < 1000; n++)
- p[n] = n;
-
- p2 = kit_realloc (p, 2000);
- if (p2 != NULL) {
- p = p2;
-
- for (n = 0; n < 2000; n++)
- p[n] = n;
- }
-
- kit_free (p);
- }
-
- if ((p = kit_realloc (NULL, 1000)) != NULL) {
- for (n = 0; n < 1000; n++)
- p[n] = n;
-
- kit_realloc (p, 0);
- }
-
- if ((p = kit_malloc0 (1000)) != NULL) {
- for (n = 0; n < 1000; n++)
- kit_assert (p[n] == '\0');
- kit_free (p);
- }
-
- return TRUE;
-}
-
-KitTest _test_memory = {
- "kit_memory",
- NULL,
- NULL,
- _run_test
-};
-
-#endif /* KIT_BUILD_TESTS */
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