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2c78a4f527
Allow an application to decide which log levels it wants to get in the callback function passed to tevent_set_debug(). By default TEVENT_DEBUG_WARNING is the maximal reported level and TEVENT_DEBUG_TRACE message no longer reach the callback function by default. It seems Samba is the only consumer of tevent_set_debug(), so it should not be a huge problem, as Samba only reports TEVENT_DEBUG_TRACE message with log level 50 anyway. And future Samba versions will call tevent_set_max_debug_level() if needed. Note the change to tevent-0.14.1.sigs will be reverted with the release of tevent 0.15.0. Signed-off-by: Stefan Metzmacher <metze@samba.org> Reviewed-by: Ralph Boehme <slow@samba.org>
372 lines
9.7 KiB
C
372 lines
9.7 KiB
C
/*
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Unix SMB/CIFS implementation.
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Copyright (C) Andrew Tridgell 2005
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Copyright (C) Jelmer Vernooij 2005
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** NOTE! The following LGPL license applies to the tevent
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** library. This does NOT imply that all of Samba is released
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** under the LGPL
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 3 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#include "replace.h"
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#define TEVENT_DEPRECATED
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#include "tevent.h"
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#include "tevent_internal.h"
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#undef tevent_thread_call_depth_reset_from_req
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/********************************************************************
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* Debug wrapper functions, modeled (with lot's of code copied as is)
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* after the ev debug wrapper functions
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********************************************************************/
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/*
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this allows the user to choose their own debug function
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*/
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int tevent_set_debug(struct tevent_context *ev,
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void (*debug)(void *context,
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enum tevent_debug_level level,
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const char *fmt,
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va_list ap) PRINTF_ATTRIBUTE(3,0),
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void *context)
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{
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if (ev->wrapper.glue != NULL) {
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ev = tevent_wrapper_main_ev(ev);
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tevent_abort(ev, "tevent_set_debug() on wrapper");
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errno = EINVAL;
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return -1;
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}
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if (debug != NULL) {
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/*
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* tevent_set_max_debug_level(ev, TEVENT_DEBUG_TRACE)
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* can be used to get full tracing, but we can to
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* avoid overhead by default.
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*/
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ev->debug_ops.max_level = TEVENT_DEBUG_WARNING;
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} else {
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ev->debug_ops.max_level = TEVENT_DEBUG_FATAL;
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}
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ev->debug_ops.debug = debug;
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ev->debug_ops.context = context;
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return 0;
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}
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enum tevent_debug_level
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tevent_set_max_debug_level(struct tevent_context *ev,
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enum tevent_debug_level max_level)
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{
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enum tevent_debug_level old_level;
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old_level = ev->debug_ops.max_level;
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ev->debug_ops.max_level = max_level;
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return old_level;
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}
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/*
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debug function for ev_set_debug_stderr
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*/
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static void tevent_debug_stderr(void *private_data,
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enum tevent_debug_level level,
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const char *fmt,
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va_list ap) PRINTF_ATTRIBUTE(3,0);
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static void tevent_debug_stderr(void *private_data,
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enum tevent_debug_level level,
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const char *fmt, va_list ap)
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{
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if (level <= TEVENT_DEBUG_WARNING) {
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vfprintf(stderr, fmt, ap);
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}
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}
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/*
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convenience function to setup debug messages on stderr
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messages of level TEVENT_DEBUG_WARNING and higher are printed
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*/
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int tevent_set_debug_stderr(struct tevent_context *ev)
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{
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return tevent_set_debug(ev, tevent_debug_stderr, ev);
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}
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/*
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* log a message
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*
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* The default debug action is to ignore debugging messages.
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* This is the most appropriate action for a library.
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* Applications using the library must decide where to
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* redirect debugging messages
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*/
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void tevent_debug(struct tevent_context *ev, enum tevent_debug_level level,
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const char *fmt, ...)
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{
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va_list ap;
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if (!ev) {
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return;
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}
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if (ev->wrapper.glue != NULL) {
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ev = tevent_wrapper_main_ev(ev);
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}
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if (level > ev->debug_ops.max_level) {
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return;
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}
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if (ev->debug_ops.debug == NULL) {
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return;
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}
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va_start(ap, fmt);
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ev->debug_ops.debug(ev->debug_ops.context, level, fmt, ap);
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va_end(ap);
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}
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void tevent_set_trace_callback(struct tevent_context *ev,
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tevent_trace_callback_t cb,
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void *private_data)
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{
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if (ev->wrapper.glue != NULL) {
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ev = tevent_wrapper_main_ev(ev);
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tevent_abort(ev, "tevent_set_trace_callback() on wrapper");
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return;
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}
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ev->tracing.point.callback = cb;
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ev->tracing.point.private_data = private_data;
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}
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void tevent_get_trace_callback(struct tevent_context *ev,
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tevent_trace_callback_t *cb,
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void *private_data)
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{
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*cb = ev->tracing.point.callback;
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*(void**)private_data = ev->tracing.point.private_data;
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}
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void tevent_trace_point_callback(struct tevent_context *ev,
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enum tevent_trace_point tp)
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{
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if (ev->tracing.point.callback != NULL) {
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ev->tracing.point.callback(tp, ev->tracing.point.private_data);
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}
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}
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void tevent_set_trace_fd_callback(struct tevent_context *ev,
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tevent_trace_fd_callback_t cb,
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void *private_data)
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{
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if (ev->wrapper.glue != NULL) {
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ev = tevent_wrapper_main_ev(ev);
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tevent_abort(ev, "tevent_set_trace_fd_callback() on wrapper");
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return;
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}
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ev->tracing.fde.callback = cb;
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ev->tracing.fde.private_data = private_data;
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}
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void tevent_get_trace_fd_callback(struct tevent_context *ev,
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tevent_trace_fd_callback_t *cb,
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void *p_private_data)
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{
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*cb = ev->tracing.fde.callback;
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*(void**)p_private_data = ev->tracing.fde.private_data;
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}
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void tevent_trace_fd_callback(struct tevent_context *ev,
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struct tevent_fd *fde,
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enum tevent_event_trace_point tp)
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{
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if (ev->tracing.fde.callback != NULL) {
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ev->tracing.fde.callback(fde, tp, ev->tracing.fde.private_data);
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}
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}
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void tevent_set_trace_signal_callback(struct tevent_context *ev,
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tevent_trace_signal_callback_t cb,
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void *private_data)
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{
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if (ev->wrapper.glue != NULL) {
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ev = tevent_wrapper_main_ev(ev);
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tevent_abort(ev, "tevent_set_trace_signal_callback() "
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"on wrapper");
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return;
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}
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ev->tracing.se.callback = cb;
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ev->tracing.se.private_data = private_data;
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}
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void tevent_get_trace_signal_callback(struct tevent_context *ev,
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tevent_trace_signal_callback_t *cb,
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void *p_private_data)
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{
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*cb = ev->tracing.se.callback;
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*(void**)p_private_data = ev->tracing.se.private_data;
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}
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void tevent_trace_signal_callback(struct tevent_context *ev,
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struct tevent_signal *se,
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enum tevent_event_trace_point tp)
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{
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if (ev->tracing.se.callback != NULL) {
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ev->tracing.se.callback(se, tp, ev->tracing.se.private_data);
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}
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}
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void tevent_set_trace_timer_callback(struct tevent_context *ev,
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tevent_trace_timer_callback_t cb,
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void *private_data)
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{
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if (ev->wrapper.glue != NULL) {
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ev = tevent_wrapper_main_ev(ev);
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tevent_abort(ev, "tevent_set_trace_timer_callback() "
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"on wrapper");
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return;
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}
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ev->tracing.te.callback = cb;
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ev->tracing.te.private_data = private_data;
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}
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void tevent_get_trace_timer_callback(struct tevent_context *ev,
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tevent_trace_timer_callback_t *cb,
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void *p_private_data)
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{
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*cb = ev->tracing.te.callback;
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*(void**)p_private_data = ev->tracing.te.private_data;
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}
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void tevent_trace_timer_callback(struct tevent_context *ev,
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struct tevent_timer *te,
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enum tevent_event_trace_point tp)
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{
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if (ev->tracing.te.callback != NULL) {
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ev->tracing.te.callback(te, tp, ev->tracing.te.private_data);
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}
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}
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void tevent_set_trace_immediate_callback(struct tevent_context *ev,
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tevent_trace_immediate_callback_t cb,
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void *private_data)
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{
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if (ev->wrapper.glue != NULL) {
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ev = tevent_wrapper_main_ev(ev);
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tevent_abort(ev, "tevent_set_trace_immediate_callback() "
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"on wrapper");
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return;
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}
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ev->tracing.im.callback = cb;
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ev->tracing.im.private_data = private_data;
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}
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void tevent_get_trace_immediate_callback(struct tevent_context *ev,
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tevent_trace_immediate_callback_t *cb,
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void *p_private_data)
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{
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*cb = ev->tracing.im.callback;
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*(void**)p_private_data = ev->tracing.im.private_data;
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}
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void tevent_trace_immediate_callback(struct tevent_context *ev,
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struct tevent_immediate *im,
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enum tevent_event_trace_point tp)
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{
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if (ev->tracing.im.callback != NULL) {
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ev->tracing.im.callback(im, tp, ev->tracing.im.private_data);
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}
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}
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void tevent_set_trace_queue_callback(struct tevent_context *ev,
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tevent_trace_queue_callback_t cb,
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void *private_data)
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{
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if (ev->wrapper.glue != NULL) {
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ev = tevent_wrapper_main_ev(ev);
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tevent_abort(ev, "tevent_set_trace_queue_callback() "
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"on wrapper");
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return;
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}
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ev->tracing.qe.callback = cb;
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ev->tracing.qe.private_data = private_data;
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}
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void tevent_get_trace_queue_callback(struct tevent_context *ev,
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tevent_trace_queue_callback_t *cb,
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void *p_private_data)
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{
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*cb = ev->tracing.qe.callback;
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*(void**)p_private_data = ev->tracing.qe.private_data;
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}
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void tevent_trace_queue_callback(struct tevent_context *ev,
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struct tevent_queue_entry *qe,
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enum tevent_event_trace_point tp)
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{
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if (ev->tracing.qe.callback != NULL) {
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ev->tracing.qe.callback(qe, tp, ev->tracing.qe.private_data);
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}
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}
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_PRIVATE_ __thread
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struct tevent_thread_call_depth_state tevent_thread_call_depth_state_g;
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void tevent_thread_call_depth_activate(size_t *ptr)
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{
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}
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void tevent_thread_call_depth_deactivate(void)
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{
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}
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void tevent_thread_call_depth_start(struct tevent_req *req)
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{
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}
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void tevent_thread_call_depth_reset_from_req(struct tevent_req *req)
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{
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_tevent_thread_call_depth_reset_from_req(req, NULL);
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}
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void _tevent_thread_call_depth_reset_from_req(struct tevent_req *req,
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const char *fname)
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{
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if (tevent_thread_call_depth_state_g.cb != NULL) {
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tevent_thread_call_depth_state_g.cb(
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tevent_thread_call_depth_state_g.cb_private,
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TEVENT_CALL_FLOW_REQ_RESET,
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req,
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req->internal.call_depth,
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fname);
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}
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}
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void tevent_thread_call_depth_set_callback(tevent_call_depth_callback_t f,
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void *private_data)
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{
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/* In case of deactivation, make sure that call depth is set to 0 */
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if (tevent_thread_call_depth_state_g.cb != NULL) {
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tevent_thread_call_depth_state_g.cb(
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tevent_thread_call_depth_state_g.cb_private,
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TEVENT_CALL_FLOW_REQ_RESET,
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NULL,
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0,
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"tevent_thread_call_depth_set_callback");
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}
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tevent_thread_call_depth_state_g = (struct tevent_thread_call_depth_state)
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{
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.cb = f,
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.cb_private = private_data,
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};
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}
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