Lines Matching full:trace

17  #include <openssl/trace.h>
24  /* trace group macros */
28          /* Leave trace group prematurely in case of an error */
35  /* one-shot trace macros */
41  /* check whether a trace category is enabled */
58 L<OSSL_trace_set_callback(3)/Trace types>.
63 I<trace channel> is attached to it. A trace channel is simply a
64 BIO object to which the application can write its trace output.
66 The application has two different ways of registering a trace channel,
71 We call them a I<simple trace channel> and a I<callback trace channel>,
74 To produce trace output, it is necessary to obtain a pointer to the
75 trace channel (i.e., the BIO object) using OSSL_trace_begin(), write
78 calls surrounding the trace output create a group, which acts as a
79 critical section (guarded by a mutex) to ensure that the trace output
109 used as follows to wrap a trace section:
129 trace section:
159 The macro call C<OSSL_TRACE(category, text)>, produces literal text trace output.
162 printf-style trace output with n format field arguments (n=1,...,9).
174 only if a specific trace category is enabled.
175 In some situations this is simpler than entering a trace section using
191 It is not needed to guard trace output function calls like
194 If producing the trace output requires carrying out auxiliary calculations,
196 executed only if the trace category is enabled.
198 The most natural way to do this is to place the code inside the trace section
209 of a trace section. This is the case if calculations and tracing happen in
211 that placing them inside a (critical) trace section would create too much
223 it takes to print the trace output, not to calculate it.
229 necessary to configure and build OpenSSL with the 'enable-trace' option.