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Code Issues Releases Wiki Activity

1949. [func] Addition memory leakage checks. [RT #15544]

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This commit is contained in:
Mark Andrews
2006-01-04 03:16:47 +00:00
parent 332ed11af0
commit e9733bc599
5 changed files with 113 additions and 4 deletions
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82
lib/isc/mem.c
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@@ -15,7 +15,7 @@
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id: mem.c,v 1.124 2005/08/23 04:05:50 marka Exp $ */
/* $Id: mem.c,v 1.125 2006/01/04 03:16:47 marka Exp $ */
/*! \file */
@@ -30,6 +30,7 @@
#include <isc/magic.h>
#include <isc/mem.h>
#include <isc/msgs.h>
#include <isc/once.h>
#include <isc/ondestroy.h>
#include <isc/string.h>
@@ -106,6 +107,12 @@ struct stats {
typedef ISC_LIST(debuglink_t) debuglist_t;
#endif
/* List of all active memory contexts. */
static ISC_LIST(isc_mem_t) contexts;
static isc_once_t once = ISC_ONCE_INIT;
static isc_mutex_t lock;
struct isc_mem {
unsigned int magic;
isc_ondestroy_t ondestroy;
@@ -144,6 +151,7 @@ struct isc_mem {
#endif
unsigned int memalloc_failures;
ISC_LINK(isc_mem_t) link;
};
#define MEMPOOL_MAGIC ISC_MAGIC('M', 'E', 'M', 'p')
@@ -680,6 +688,11 @@ default_memfree(void *arg, void *ptr) {
free(ptr);
}
static void
initialize_action(void) {
RUNTIME_CHECK(isc_mutex_init(&lock) == ISC_R_SUCCESS);
}
/*
* Public.
*/
@@ -708,6 +721,8 @@ isc_mem_createx2(size_t init_max_size, size_t target_size,
INSIST((ALIGNMENT_SIZE & (ALIGNMENT_SIZE - 1)) == 0);
RUNTIME_CHECK(isc_once_do(&once, initialize_action) == ISC_R_SUCCESS);
ctx = (memalloc)(arg, sizeof(*ctx));
if (ctx == NULL)
return (ISC_R_NOMEMORY);
@@ -794,6 +809,10 @@ isc_mem_createx2(size_t init_max_size, size_t target_size,
ctx->memalloc_failures = 0;
LOCK(&lock);
ISC_LIST_INITANDAPPEND(contexts, ctx, link);
UNLOCK(&lock);
*ctxp = ctx;
return (ISC_R_SUCCESS);
@@ -840,6 +859,10 @@ destroy(isc_mem_t *ctx) {
ctx->magic = 0;
LOCK(&lock);
ISC_LIST_UNLINK(contexts, ctx, link);
UNLOCK(&lock);
INSIST(ISC_LIST_EMPTY(ctx->pools));
#if ISC_MEM_TRACKLINES
@@ -1858,3 +1881,60 @@ isc_mempool_getfillcount(isc_mempool_t *mpctx) {
return (fillcount);
}
void
isc_mem_printactive(isc_mem_t *ctx, FILE *file) {
REQUIRE(VALID_CONTEXT(ctx));
REQUIRE(file != NULL);
#if !ISC_MEM_TRACKLINES
UNUSED(ctx);
UNUSED(file);
#else
print_active(ctx, file);
#endif
}
void
isc_mem_printallactive(FILE *file) {
#if !ISC_MEM_TRACKLINES
UNUSED(file);
#else
isc_mem_t *ctx;
RUNTIME_CHECK(isc_once_do(&once, initialize_action) == ISC_R_SUCCESS);
LOCK(&lock);
for (ctx = ISC_LIST_HEAD(contexts);
ctx != NULL;
ctx = ISC_LIST_NEXT(ctx, link)) {
fprintf(file, "context: %p\n", ctx);
print_active(ctx, file);
}
UNLOCK(&lock);
#endif
}
void
isc_mem_checkdestroyed(FILE *file) {
RUNTIME_CHECK(isc_once_do(&once, initialize_action) == ISC_R_SUCCESS);
LOCK(&lock);
if (!ISC_LIST_EMPTY(contexts)) {
#if ISC_MEM_TRACKLINES
isc_mem_t *ctx;
for (ctx = ISC_LIST_HEAD(contexts);
ctx != NULL;
ctx = ISC_LIST_NEXT(ctx, link)) {
fprintf(file, "context: %p\n", ctx);
print_active(ctx, file);
}
fflush(file);
#endif
INSIST(1);
}
UNLOCK(&lock);
}