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Commit 869c0f10 authored by Rich Prohaska's avatar Rich Prohaska
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simplify memory.c, map toku_malloc direct to malloc. closes #1024 

git-svn-id: file:///svn/tokudb@5167 c7de825b-a66e-492c-adef-691d508d4ae1
parent 273b90ab
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Showing with 8 additions and 204 deletions
newbrt/memory.c
View file @ 869c0f10
......@@ -10,164 +10,14 @@
int toku_memory_check=0;
#define WHEN_MEM_DEBUG(x) ({if (toku_memory_check) ({x});})
static long long n_items_malloced=0;
/* Memory checking */
enum { items_limit = 1000 };
static int overflowed=0;
static void *items[items_limit];
static long sizes[items_limit];
static void note_did_malloc (void *p, size_t size) {
static long long count=0;
WHEN_MEM_DEBUG(
if (n_items_malloced<items_limit) { items[n_items_malloced]=p; sizes[n_items_malloced]=size; }
else overflowed=1;
//printf("%s:%d %p=malloc(%ld)\n", __FILE__, __LINE__, p, size);
);
n_items_malloced++;
count++;
}
static void note_did_free(void *p) {
WHEN_MEM_DEBUG(
if (!overflowed) {
int i;
//printf("not overflowed\n");
for (i=0; i<n_items_malloced; i++) {
if (items[i]==p) {
items[i]=items[n_items_malloced-1];
sizes[i]=sizes[n_items_malloced-1];
// printf("items[%d] replaced, now %p\n", i, items[i]);
goto ok;
}
}
printf("%s:%d freed something (%p) not alloced\n", __FILE__, __LINE__, p);
abort();
ok:;
}
//printf("%s:%d free(%p)\n", __FILE__, __LINE__, p);
);
n_items_malloced--;
}
//#define BUFFERED_MALLOC
#ifdef BUFFERED_MALLOC
#error "Turning on BUFFERED_MALLOC will probably break things. For example, DBT's are DB_DBT_MALLOC'd using toku_malloc(), but then the user calls free() (rather than toku_free)."
enum { BUFFERING = 4096 };
void mark_buffer (char *p, int size) {
unsigned int *pl = (unsigned int*)p;
int i;
for (i=0; i<BUFFERING/4; i++) {
pl[i] = 0xdeadbeef;
}
pl[BUFFERING/8] = size;
}
int check_buffer (char *p) {
unsigned int *pl = (unsigned int*)p;
int i;
for (i=0; i<BUFFERING/4; i++) {
if (i!=BUFFERING/8) {
assert(pl[i] == 0xdeadbeef);
}
}
return pl[BUFFERING/8];
}
void check_all_buffers (void) {
int i;
if (!overflowed) {
for (i=0; i<n_items_malloced; i++) {
int size = check_buffer(((char*)items[i])-BUFFERING);
check_buffer(((char*)items[i])+size);
}
}
}
void *actual_malloc(long size) {
char *r = malloc(size+BUFFERING*2);
mark_buffer(r, size);
mark_buffer(r+size+BUFFERING, size);
check_all_buffers();
return r+BUFFERING;
}
void actual_free(void *pv) {
char *p = pv;
int size=check_buffer(p-BUFFERING);
check_buffer(p+size);
check_all_buffers();
//free(p-BUFFERING);
}
void *actual_realloc(void *pv, long size) {
check_all_buffers();
{
char *p = pv;
char *r = realloc(p-BUFFERING, size+BUFFERING*2);
mark_buffer(r, size);
mark_buffer(r+size+BUFFERING, size);
return r+BUFFERING;
}
}
void *actual_calloc (long nmemb, long size) {
return actual_malloc(nmemb*size);
}
void do_memory_check (void) {
check_all_buffers();
}
#else
#define actual_malloc malloc
#define actual_free free
#define actual_realloc realloc
#define actual_calloc calloc
#endif
void *toku_calloc(size_t nmemb, size_t size) {
void *r;
errno=0;
r = actual_calloc(nmemb, size);
//printf("%s:%d calloc(%ld,%ld)->%p\n", __FILE__, __LINE__, nmemb, size, r);
note_did_malloc(r, nmemb*size);
//if ((long)r==0x80523f8) { printf("%s:%d %p\n", __FILE__, __LINE__, r); }
return r;
return calloc(nmemb, size);
}
#define FREELIST_LIMIT (64+1)
static void *freelist[FREELIST_LIMIT];
#define MALLOC_SIZE_COUNTING_LIMIT 512
static int malloc_counts[MALLOC_SIZE_COUNTING_LIMIT]; // We rely on static variables being initialized to 0.
static int fresh_malloc_counts[MALLOC_SIZE_COUNTING_LIMIT]; // We rely on static variables being initialized to 0.
static int other_malloc_count=0, fresh_other_malloc_count=0;
void *toku_malloc(size_t size) {
void * r;
errno=0;
if (size<MALLOC_SIZE_COUNTING_LIMIT) malloc_counts[size]++;
else other_malloc_count++;
if (size>=sizeof(void*) && size<FREELIST_LIMIT) {
if (freelist[size]) {
r = freelist[size];
freelist[size] = *(void**)r;
note_did_malloc(r, size);
return r;
}
}
if (size<MALLOC_SIZE_COUNTING_LIMIT) fresh_malloc_counts[size]++;
else fresh_other_malloc_count++;
r=actual_malloc(size);
note_did_malloc(r, size);
//printf("%s:%d malloc(%ld)->%p (%lld)\n", __FILE__, __LINE__, size,r, n_items_malloced);
//if ((long)r==0x80523f8) { printf("%s:%d %p size=%ld\n", __FILE__, __LINE__, r, size); }
return r;
return malloc(size);
}
void *toku_tagmalloc(size_t size, enum typ_tag typtag) {
//printf("%s:%d tagmalloc\n", __FILE__, __LINE__);
void *r = toku_malloc(size);
......@@ -178,32 +28,15 @@ void *toku_tagmalloc(size_t size, enum typ_tag typtag) {
}
void *toku_realloc(void *p, size_t size) {
if (p==0) return toku_malloc(size);
void *newp;
note_did_free(p);
errno=0;
newp = actual_realloc(p, size);
note_did_malloc(newp, size);
//printf("%s:%d realloc(%p,%ld)-->%p (%lld)\n", __FILE__, __LINE__, p, size, newp, n_items_malloced);
return newp;
return realloc(p, size);
}
void toku_free(void* p) {
//printf("%s:%d free(%p) (%lld)\n", __FILE__, __LINE__, p, n_items_malloced-1);
note_did_free(p);
actual_free(p);
free(p);
}
void toku_free_n(void* p, size_t size) {
//printf("%s:%d free(%p) (%lld)\n", __FILE__, __LINE__, p, n_items_malloced-1);
note_did_free(p);
if (size>=sizeof(void*) && size<FREELIST_LIMIT) {
//printf("freelist[%lu] ||= %p\n", size, p);
*(void**)p = freelist[size];
freelist[size]=p;
} else {
actual_free(p);
}
void toku_free_n(void* p, size_t size __attribute__((unused))) {
free(p);
}
void *toku_memdup (const void *v, size_t len) {
......@@ -217,43 +50,14 @@ char *toku_strdup (const char *s) {
}
void toku_memory_check_all_free (void) {
if (n_items_malloced>0) {
fprintf(stderr, "n_items_malloced=%lld\n", n_items_malloced);
if (toku_memory_check) {
int i;
for (i=0; i<n_items_malloced && i< items_limit && i<10; i++) {
fprintf(stderr, " one item is %p size=%ld\n", items[i], sizes[i]);
}
}
return;
}
assert(n_items_malloced==0);
}
int toku_get_n_items_malloced (void) { return n_items_malloced; }
int toku_get_n_items_malloced (void) { return 0; }
void toku_print_malloced_items (void) {
int i;
for (i=0; i<n_items_malloced; i++) {
printf(" %p size=%ld\n", items[i], sizes[i]);
}
}
void toku_malloc_report (void) {
int i;
printf("malloc report:\n");
for (i=0; i<MALLOC_SIZE_COUNTING_LIMIT; i++) {
if (malloc_counts[i] || fresh_malloc_counts[i]) printf("%d: %d (%d fresh)\n", i, malloc_counts[i], fresh_malloc_counts[i]);
}
printf("Other: %d (%d fresh)\n", other_malloc_count, fresh_other_malloc_count);
}
void toku_malloc_cleanup (void) {
int i;
for (i=0; i<FREELIST_LIMIT; i++) {
void *p;
while ((p = freelist[i])) {
freelist[i] = *(void**)p;
actual_free(p);
}
}
}
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