diff options
Diffstat (limited to 'src/qxl_mem.c')
| -rw-r--r-- | src/qxl_mem.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/qxl_mem.c b/src/qxl_mem.c index c4c91b0..24816aa 100644 --- a/src/qxl_mem.c +++ b/src/qxl_mem.c @@ -123,6 +123,24 @@ qxl_mem_dump_stats (struct qxl_mem *mem, const char *header) mem->n_bytes - (mem->total_allocated - mem->total_freed)); } +void +sanity_check (struct qxl_mem *mem) +{ +#if 0 + struct block *b; + + ErrorF ("sanity check\n"); + + for (b = mem->unused; b != NULL; b = b->u.unused.next) + { + ErrorF (" %p\n", b); + + if (b == (void *)0xffffffffffffffff) + abort(); + } +#endif +} + void * qxl_alloc (struct qxl_mem *mem, unsigned long n_bytes) { @@ -190,6 +208,8 @@ qxl_alloc (struct qxl_mem *mem, unsigned long n_bytes) } mem->total_allocated += n_bytes; + + sanity_check (mem); return (void *)b->u.used.data; } @@ -276,6 +296,9 @@ qxl_free (struct qxl_mem *mem, void *d) #if 0 printf (" free: no merge with before\n"); #endif + + if (b == (void *)0xffffffffffffffff) + abort(); before->u.unused.next = b; } @@ -290,6 +313,9 @@ qxl_free (struct qxl_mem *mem, void *d) if (after) { + if (after == (void *)0xffffffffffffffff) + abort(); + #if 0 printf (" free: after: %p\n", after->u.used.data); #endif @@ -320,4 +346,5 @@ qxl_free (struct qxl_mem *mem, void *d) #if 0 qxl_mem_dump_stats (mem, "after free"); #endif + sanity_check (mem); } |