Revert removal of POOL_MEM::max_size method.

src/dird/bsr.c

@@ -89,7 +89,7 @@ static void print_bsr_item(POOL_MEM *pool_buf, const char *fmt, ...)
    POOL_MEM item(PM_MESSAGE);
 
    while (1) {
-      maxlen = item.size() - 1;
+      maxlen = item.max_size() - 1;
       va_start(arg_ptr, fmt);
       len = bvsnprintf(item.c_str(), maxlen, fmt, arg_ptr);
       va_end(arg_ptr);

src/lib/mem_pool.c

@@ -630,6 +630,20 @@ int pm_memcpy(POOL_MEM &pm, const char *data, int32_t n)
 
 /* ==============  CLASS POOL_MEM   ============== */
 
+/*
+ * Return the size of a memory buffer
+ */
+int32_t POOL_MEM::max_size()
+{
+   int32_t size;
+   char *cp = mem;
+
+   cp -= HEAD_SIZE;
+   size = ((struct abufhead *)cp)->ablen;
+
+   return size;
+}
+
 void POOL_MEM::realloc_pm(int32_t size)
 {
    char *cp = mem;
@@ -638,7 +652,7 @@ void POOL_MEM::realloc_pm(int32_t size)
 
    P(mutex);
    cp -= HEAD_SIZE;
-   buf = (char *)realloc(cp, size+HEAD_SIZE);
+   buf = (char *)realloc(cp, size + HEAD_SIZE);
    if (buf == NULL) {
       V(mutex);
       Emsg1(M_ABORT, 0, _("Out of memory requesting %d bytes\n"), size);

src/lib/mem_pool.h

@@ -96,6 +96,7 @@ class POOL_MEM {
       mem = check_pool_memory_size(mem, size);
       return mem;
    }
+   int32_t max_size();
    void realloc_pm(int32_t size);
    int strcpy(const char *str);
    int strcat(const char *str);

src/lib/message.c

@@ -1549,7 +1549,7 @@ int Mmsg(POOL_MEM &pool_buf, const char *fmt, ...)
    va_list ap;
 
    while (1) {
-      maxlen = pool_buf.size() - 1;
+      maxlen = pool_buf.max_size() - 1;
       va_start(ap, fmt);
       len = bvsnprintf(pool_buf.c_str(), maxlen, fmt, ap);
       va_end(ap);