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Improve USB mass storgage memory usage instrumentation

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git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3819 42af7a65-404d-4744-a932-0658087f49c3
This commit is contained in:
patacongo 2011-07-26 13:52:49 +00:00
parent 39ef4cf6f1
commit da8dd4ccd4
2 changed files with 21 additions and 8 deletions
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2
ChangeLog.txt
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@ -87,3 +87,5 @@
the USB storage device.
* apps/examples/nx*: All NX header files moved from nuttx/include/nuttx to
nuttx/include/nuttx/nx.
* apps/examples/usbstorage: Added instrumentation to monitor memory usage
to check for memory leaks in the USB storage driver.

27
examples/usbstorage/usbstrg_main.c
View File

@ -114,13 +114,23 @@ struct usbstrg_state_s g_usbstrg;
static void show_memory_usage(struct mallinfo *mmbefore,
struct mallinfo *mmafter)
{
message("VARIABLE BEFORE AFTER\n");
message("======== ======== ========\n");
message("arena %8x %8x\n", mmbefore->arena, mmafter->arena);
message("ordblks %8d %8d\n", mmbefore->ordblks, mmafter->ordblks);
message("mxordblk %8x %8x\n", mmbefore->mxordblk, mmafter->mxordblk);
message("uordblks %8x %8x\n", mmbefore->uordblks, mmafter->uordblks);
message("fordblks %8x %8x\n", mmbefore->fordblks, mmafter->fordblks);
int diff;
message(" total used free largest\n");
message("Before:%11d%11d%11d%11d\n",
mmbefore->arena, mmbefore->uordblks, mmbefore->fordblks, mmbefore->mxordblk);
message("After: %11d%11d%11d%11d\n",
mmafter->arena, mmafter->uordblks, mmafter->fordblks, mmafter->mxordblk);
diff = mmbefore->uordblks - mmafter->uordblks;
if (diff < 0)
{
message("Change:%11d allocated\n", -diff);
}
else if (diff > 0)
{
message("Change:%11d freed\n", diff);
}
}
#else
# define show_memory_usage(mm1, mm2)
@ -533,7 +543,7 @@ int MAIN_NAME(int argc, char *argv[])
message(MAIN_NAME_STRING ": Connected\n");
g_usbstrg.mshandle = handle;
check_test_memory_usage("Final connection memory usage");
check_test_memory_usage("After MS connection");
#else /* defined(CONFIG_DISABLE_SIGNALS) */
@ -569,6 +579,7 @@ int msdis_main(int argc, char *argv[])
message("msdis: ERROR: Not connected\n");
return 1;
}
check_test_memory_usage("Since MS connection");
/* Then disconnect the device and uninitialize the USB mass storage driver */