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authorViktor Dukhovni <openssl-users@dukhovni.org>2016-01-10 14:42:10 -0500
committerDr. Stephen Henson <steve@openssl.org>2016-01-11 02:41:16 +0000
commitc2e27310c790c0dd2f87dd420e65e0cca522ddb2 (patch)
treebda08e77fcbd3f993498ef5a4c7d9b551b0b47ed /doc
parent3af45d9978c0bf6ce333e9666f41a03d41822d0c (diff)
downloadopenssl-c2e27310c790c0dd2f87dd420e65e0cca522ddb2.tar.gz
Enable/disable crypto-mdebug just like other features
Also always abort() on leak failure. Reviewed-by: Stephen Henson <steve@openssl.org>
Diffstat (limited to 'doc')
-rw-r--r--doc/crypto/OPENSSL_malloc.pod26
1 files changed, 13 insertions, 13 deletions
diff --git a/doc/crypto/OPENSSL_malloc.pod b/doc/crypto/OPENSSL_malloc.pod
index bf7c3ab9ed..eef8c64393 100644
--- a/doc/crypto/OPENSSL_malloc.pod
+++ b/doc/crypto/OPENSSL_malloc.pod
@@ -56,7 +56,7 @@ CRYPTO_mem_leaks, CRYPTO_mem_leaks_fp - Memory allocation functions
#define CRYPTO_MEM_CHECK_DISABLE
#define CRYPTO_MEM_CHECK_ENABLE
- int CRYPTO_mem_ctrl(int flags);
+ int CRYPTO_mem_ctrl(int mode);
int OPENSSL_mem_debug_push(const char *info)
int OPENSLS_mem_debug_pop)(void)
@@ -112,12 +112,14 @@ This is most useful for identifying memory leaks.
CRYPTO_set_mem_debug() turns this tracking on and off. It is normally
called at startup, but can be called at any time.
-Finer-grain control of the tracking can be done with CRYPTO_mem_ctrl().
-The most common case is to enable tracking, which is done by using
-the B<CRYPTO_MEM_CHECK_ON> constant; it can be turned off by using
-the B<CRYPTO_MEM_CHECK_OFF> value. The disable and enable values are
-most commonly used within OpenSSL to termporarily suspend and restore
-tracking of library internals.
+CRYPTO_mem_ctrl() provides fine-grained control of memory leak tracking.
+To enable tracking call CRYPTO_mem_ctrl() with a B<mode> argument of
+the B<CRYPTO_MEM_CHECK_ON>.
+To disable tracking call CRYPTO_mem_ctrl() with a B<mode> argument of
+the B<CRYPTO_MEM_CHECK_OFF>.
+The B<CRYPTO_MEM_CHECK_DISABLE> and B<CRYPTO_MEM_CHECK_ENABLE> modes
+are used internally within OpenSSL to temporarily suspend and resume
+tracking.
While checking memory, it can be useful to store additional context
about what is being done.
@@ -129,11 +131,9 @@ This must be a global or other static string; it is not copied.
OPENSSL_mem_debug_pop() removes identifying state from the stack.
At the end of the program, calling CRYPTO_mem_leaks() or
-CRYPTO_mem_leaks_fp() will
-report all "leaked" memory, writing it to the specified BIO B<b>
-or FILE B<fp>.
-Depending on how OpenSSL is built, it may then abort if there
-are any unfree'd allocations, for debugging.
+CRYPTO_mem_leaks_fp() will report all "leaked" memory, writing it
+to the specified BIO B<b> or FILE B<fp>.
+It will then L<abort(3)> if there were any unfree'd allocations.
=head1 RETURN VALUES
@@ -154,7 +154,7 @@ CRYPTO_set_mem_functions() and CRYPTO_set_mem_debug()
return 1 on success or 0 on failure (almost
always because allocations have already happened).
-CRYPTO_mem_ctrl() return the previous value of the flag.
+CRYPTO_mem_ctrl() returns the previous value of the mode.
OPENSSL_mem_debug_push() and OPENSSL_mem_debug_pop()
return 1 on success or 0 on failure.