diff options
Diffstat (limited to 'malloc.c')
| -rw-r--r-- | malloc.c | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -126,6 +126,7 @@ malloc(nbytes) #endif #endif /* safemalloc */ + MUTEX_LOCK(&malloc_mutex); /* * Convert amount of memory requested into * closest block size stored in hash buckets @@ -145,6 +146,7 @@ malloc(nbytes) if (nextf[bucket] == NULL) morecore(bucket); if ((p = (union overhead *)nextf[bucket]) == NULL) { + MUTEX_UNLOCK(&malloc_mutex); #ifdef safemalloc if (!nomemok) { fputs("Out of memory!\n", stderr); @@ -182,6 +184,7 @@ malloc(nbytes) p->ov_rmagic = RMAGIC; *((u_int *)((caddr_t)p + nbytes - RSLOP)) = RMAGIC; #endif + MUTEX_UNLOCK(&malloc_mutex); return ((Malloc_t)(p + 1)); } @@ -281,6 +284,7 @@ free(mp) return; /* sanity */ } #endif + MUTEX_LOCK(&malloc_mutex); #ifdef RCHECK ASSERT(op->ov_rmagic == RMAGIC); if (op->ov_index <= 13) @@ -294,6 +298,7 @@ free(mp) #ifdef DEBUGGING_MSTATS nmalloc[size]--; #endif + MUTEX_UNLOCK(&malloc_mutex); } /* @@ -340,6 +345,7 @@ realloc(mp, nbytes) #endif #endif /* safemalloc */ + MUTEX_LOCK(&malloc_mutex); op = (union overhead *)((caddr_t)cp - sizeof (union overhead)); if (op->ov_magic == MAGIC) { was_alloced++; @@ -383,8 +389,10 @@ realloc(mp, nbytes) } #endif res = cp; + MUTEX_UNLOCK(&malloc_mutex); } else { + MUTEX_UNLOCK(&malloc_mutex); if ((res = (char*)malloc(nbytes)) == NULL) return (NULL); if (cp != res) /* common optimization */ |