michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: #ifndef libmalloc_h___
michael@0: #define libmalloc_h___
michael@0: 
michael@0: #include <sys/types.h>
michael@0: #include <malloc.h>
michael@0: 
michael@0: #ifdef __cplusplus
michael@0: extern "C" {
michael@0: #endif
michael@0: 
michael@0: #include "config.h"
michael@0: 
michael@0: typedef unsigned long u_long;
michael@0: 
michael@0: // For me->flags
michael@0: #define JP_FIRST_AFTER_PAUSE 1
michael@0: 
michael@0: // Format of a jprof log entry. This is what's written out to the
michael@0: // "jprof-log" file.
michael@0: // It's called malloc_log_entry because the history of jprof is that
michael@0: // it's a modified version of tracemalloc.
michael@0: struct malloc_log_entry {
michael@0:   u_long delTime;
michael@0:   u_long numpcs;
michael@0:   unsigned int flags;
michael@0:   int thread;
michael@0:   char* pcs[MAX_STACK_CRAWL];
michael@0: };
michael@0: 
michael@0: // type's
michael@0: #define malloc_log_stack   7
michael@0: 
michael@0: // Format of a malloc map entry; after this struct is nameLen+1 bytes of
michael@0: // name data.
michael@0: struct malloc_map_entry {
michael@0:   u_long nameLen;
michael@0:   u_long address;		// base address
michael@0: };
michael@0: 
michael@0: // A method that can be called if you want to programmatically control
michael@0: // the malloc logging. Note that you must link with the library to do
michael@0: // this (or use dlsym after dynamically loading the library...)
michael@0: extern u_long SetMallocFlags(u_long flags);
michael@0: 
michael@0: // The environment variable LIBMALLOC_LOG should be set to an integer
michael@0: // value whose meaning is as follows:
michael@0: 
michael@0: // Enable logging
michael@0: #define LIBMALLOC_LOG    0x1
michael@0: 
michael@0: // Don't free memory when set
michael@0: #define LIBMALLOC_NOFREE 0x2
michael@0: 
michael@0: // Check heap for corruption after every malloc/free/realloc
michael@0: #define LIBMALLOC_CHECK  0x4
michael@0: 
michael@0: // Log reference count calls (addref/release)
michael@0: #define LIBMALLOC_LOG_RC 0x8
michael@0: 
michael@0: // Log a stack trace
michael@0: #define LIBMALLOC_LOG_TRACE 0x10
michael@0: 
michael@0: void __log_addref(void* p, int oldrc, int newrc);
michael@0: void __log_release(void* p, int oldrc, int newrc);
michael@0: 
michael@0: #ifdef __cplusplus
michael@0: } /* end of extern "C" */
michael@0: #endif
michael@0: 
michael@0: #endif /* libmalloc_h___ */