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debugging callbacks from Nick Mathewson <nickm@freehaven.net> svn:r136
2005-03-29 07:03:10 +00:00
/*
Update copyright statements to reflect the facts that: a) this is 2009 b) niels and nick have been comaintainers for a while c) saying "all rights reserved" when you then go on to explicitly disclaim some rights is sheer cargo-cultism. svn:r1065
2009-01-27 22:34:36 +00:00
* Copyright (c) 2000-2007 Niels Provos <provos@citi.umich.edu>
Update copyright notices to 2012
2012-02-10 17:29:53 -05:00
* Copyright (c) 2007-2012 Niels Provos and Nick Mathewson
debugging callbacks from Nick Mathewson <nickm@freehaven.net> svn:r136
2005-03-29 07:03:10 +00:00
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
Convert include-guard macro convention to avoid reserved identifiers Previously we used include-guards with names like _EVENT2_EVENT_H_. But C reserves macros beginning with an underscore for use by the system. This patch converts all include guards for files like include/event2/<fname.h> to be of form EVENT2_<FNAME_H>_INCLUDED_, and all Libevent 1.x headers in include/<fname.h> to be of the form EVENT1_<FNAME_H>_INCLUDED_, and all internal libevent headers with names like <fname.h> to the form <FNAME_H>_INCLUDED_. FNAME_H is here derived from fname.h by replacing every non-macro-usable character in fname.h with an underscore, and putting every remaining character in uppercase. This is an automatic conversion. The script that produced was made by running the following script over all header files: ===== #!/usr/bin/perl -w # Run this on every .h file except config.h, sys/queue.h, WIN32/event2/event-config.h use strict; my %macros = (); my %skipped = (); FILE: for my $fn (@ARGV) { my $f = $fn; if ($fn !~ /^\.\//) { $f = "./$fn"; } if ($f eq './config.h' or $f =~ m#/tree.h$# or $f =~ m#/queue.h# or $f =~ m#/event-config.h# or $f =~ m#/evconfig-private.h#) { $skipped{$fn} = 1; next FILE; } $skipped{$fn} = 0; open(F, $fn); while (<F>) { if (/^#ifndef ([A-Za-z0-9_]+)/) { $macros{$fn} = $1; next FILE; } } } print "#!/usr/bin/perl -w -i -p\n\n"; for my $fn (@ARGV) { if (! exists $macros{$fn}) { print "# No macro known for $fn!\n" if (!$skipped{$fn}); } else { if ($macros{$fn} !~ /_H_?$/) { print "# Weird macro for $fn...\n"; } my $goodmacro = uc $fn; $goodmacro =~ s#^\./##; $goodmacro =~ s#INCLUDE/EVENT2#EVENT2#; $goodmacro =~ s#INCLUDE/#EVENT1_#; $goodmacro =~ s#TEST/##; $goodmacro =~ s#[\/\-\.]#_#g; print "s/(?<![A-Za-z0-9_])$macros{$fn}(?![A-Za-z0-9_])/${goodmacro}_INCLUDED_/g;\n" } } === And then running the script below that it generated over all === the .h files again #!/usr/bin/perl -w -i -p s/(?<![A-Za-z0-9_])_BUFFEREVENT_INTERNAL_H_(?![A-Za-z0-9_])/BUFFEREVENT_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_CHANGELIST_H_(?![A-Za-z0-9_])/CHANGELIST_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_DEFER_INTERNAL_H_(?![A-Za-z0-9_])/DEFER_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVBUFFER_INTERNAL_H_(?![A-Za-z0-9_])/EVBUFFER_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT_INTERNAL_H_(?![A-Za-z0-9_])/EVENT_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVMAP_H_(?![A-Za-z0-9_])/EVMAP_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVRPC_INTERNAL_H_(?![A-Za-z0-9_])/EVRPC_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVSIGNAL_H_(?![A-Za-z0-9_])/EVSIGNAL_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVTHREAD_INTERNAL_H_(?![A-Za-z0-9_])/EVTHREAD_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT_HT_H(?![A-Za-z0-9_])/HT_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_HTTP_INTERNAL_H_(?![A-Za-z0-9_])/HTTP_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVDNS_H_(?![A-Za-z0-9_])/EVENT1_EVDNS_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT_H_(?![A-Za-z0-9_])/EVENT1_EVENT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_BUFFER_H_(?![A-Za-z0-9_])/EVENT2_BUFFER_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_BUFFER_COMPAT_H_(?![A-Za-z0-9_])/EVENT2_BUFFER_COMPAT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_BUFFEREVENT_H_(?![A-Za-z0-9_])/EVENT2_BUFFEREVENT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_BUFFEREVENT_COMPAT_H_(?![A-Za-z0-9_])/EVENT2_BUFFEREVENT_COMPAT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_BUFFEREVENT_SSL_H_(?![A-Za-z0-9_])/EVENT2_BUFFEREVENT_SSL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_BUFFEREVENT_STRUCT_H_(?![A-Za-z0-9_])/EVENT2_BUFFEREVENT_STRUCT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_DNS_H_(?![A-Za-z0-9_])/EVENT2_DNS_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_DNS_COMPAT_H_(?![A-Za-z0-9_])/EVENT2_DNS_COMPAT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_DNS_STRUCT_H_(?![A-Za-z0-9_])/EVENT2_DNS_STRUCT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_EVENT_H_(?![A-Za-z0-9_])/EVENT2_EVENT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_EVENT_COMPAT_H_(?![A-Za-z0-9_])/EVENT2_EVENT_COMPAT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_EVENT_STRUCT_H_(?![A-Za-z0-9_])/EVENT2_EVENT_STRUCT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_HTTP_H_(?![A-Za-z0-9_])/EVENT2_HTTP_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_HTTP_COMPAT_H_(?![A-Za-z0-9_])/EVENT2_HTTP_COMPAT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_HTTP_STRUCT_H_(?![A-Za-z0-9_])/EVENT2_HTTP_STRUCT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_EVENT_KEYVALQ_STRUCT_H_(?![A-Za-z0-9_])/EVENT2_KEYVALQ_STRUCT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_LISTENER_H_(?![A-Za-z0-9_])/EVENT2_LISTENER_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_RPC_H_(?![A-Za-z0-9_])/EVENT2_RPC_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_RPC_COMPAT_H_(?![A-Za-z0-9_])/EVENT2_RPC_COMPAT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_RPC_STRUCT_H_(?![A-Za-z0-9_])/EVENT2_RPC_STRUCT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_TAG_H_(?![A-Za-z0-9_])/EVENT2_TAG_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_TAG_COMPAT_H_(?![A-Za-z0-9_])/EVENT2_TAG_COMPAT_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_THREAD_H_(?![A-Za-z0-9_])/EVENT2_THREAD_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT2_UTIL_H_(?![A-Za-z0-9_])/EVENT2_UTIL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVHTTP_H_(?![A-Za-z0-9_])/EVENT1_EVHTTP_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVRPC_H_(?![A-Za-z0-9_])/EVENT1_EVRPC_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVUTIL_H_(?![A-Za-z0-9_])/EVENT1_EVUTIL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT_IOCP_INTERNAL_H(?![A-Za-z0-9_])/IOCP_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT_IPV6_INTERNAL_H(?![A-Za-z0-9_])/IPV6_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_LOG_H_(?![A-Za-z0-9_])/LOG_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_MIN_HEAP_H_(?![A-Za-z0-9_])/MINHEAP_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT_MM_INTERNAL_H(?![A-Za-z0-9_])/MM_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_RATELIM_INTERNAL_H_(?![A-Za-z0-9_])/RATELIM_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_STRLCPY_INTERNAL_H_(?![A-Za-z0-9_])/STRLCPY_INTERNAL_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_REGRESS_H_(?![A-Za-z0-9_])/REGRESS_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_TESTUTILS_H(?![A-Za-z0-9_])/REGRESS_TESTUTILS_H_INCLUDED_/g; # Weird macro for test/tinytest.h... s/(?<![A-Za-z0-9_])TINYTEST_H_INCLUDED_(?![A-Za-z0-9_])/TINYTEST_H_INCLUDED_/g; # No macro known for test/tinytest_local.h! # Weird macro for test/tinytest_macros.h... s/(?<![A-Za-z0-9_])TINYTEST_MACROS_H_INCLUDED_(?![A-Za-z0-9_])/TINYTEST_MACROS_H_INCLUDED_/g; s/(?<![A-Za-z0-9_])_EVENT_UTIL_INTERNAL_H(?![A-Za-z0-9_])/UTIL_INTERNAL_H_INCLUDED_/g;
2012-02-29 15:07:31 -05:00
#ifndef LOG_INTERNAL_H_INCLUDED_
#define LOG_INTERNAL_H_INCLUDED_
debugging callbacks from Nick Mathewson <nickm@freehaven.net> svn:r136
2005-03-29 07:03:10 +00:00
Use relative includes instead of system includes consistently.
2010-12-02 10:26:12 -05:00
#include "event2/util.h"
Use evutil_socket_t, not int, when logging socket errors.
2009-12-22 00:58:52 -05:00
r15171@tombo: nickm | 2007-12-06 12:47:47 -0500 Use GCC attributes (where available) to verify printf type-correctness. Fix some bugs this turned up. svn:r573
2007-12-06 18:12:56 +00:00
#ifdef __GNUC__
#define EV_CHECK_FMT(a,b) __attribute__((format(printf, a, b)))
Mark the event_err() functions as __attribute__((noreturn)) This attribute tells gcc (and anything else that understands gcc attributes) that the functions will never return control, and helps the optimizer a little. With luck, it will also tell less-than-full-program dataflow analysis tools that they don't need to worry about any code path that involves calling one of these functions and then returning. This patch also forces event_exit() to always exit, no matter what the user-supplied fatal_callback does. This means that the old unit tests for the event_err* functions don't work any more, since they assume it is safe to call event_err* if you've given it a bogus fatal_callback that doesn't exit. Instead, we have to make the unit tests fork before calling event_err(), and have the main unit test process wait for the event_err() test to exit with a sane exit code. On unix, that's trivial. On windows, let's not bother and just assume that event_err* works.
2010-05-13 10:57:30 -04:00
#define EV_NORETURN __attribute__((noreturn))
r15171@tombo: nickm | 2007-12-06 12:47:47 -0500 Use GCC attributes (where available) to verify printf type-correctness. Fix some bugs this turned up. svn:r573
2007-12-06 18:12:56 +00:00
#else
#define EV_CHECK_FMT(a,b)
Mark the event_err() functions as __attribute__((noreturn)) This attribute tells gcc (and anything else that understands gcc attributes) that the functions will never return control, and helps the optimizer a little. With luck, it will also tell less-than-full-program dataflow analysis tools that they don't need to worry about any code path that involves calling one of these functions and then returning. This patch also forces event_exit() to always exit, no matter what the user-supplied fatal_callback does. This means that the old unit tests for the event_err* functions don't work any more, since they assume it is safe to call event_err* if you've given it a bogus fatal_callback that doesn't exit. Instead, we have to make the unit tests fork before calling event_err(), and have the main unit test process wait for the event_err() test to exit with a sane exit code. On unix, that's trivial. On windows, let's not bother and just assume that event_err* works.
2010-05-13 10:57:30 -04:00
#define EV_NORETURN
r15171@tombo: nickm | 2007-12-06 12:47:47 -0500 Use GCC attributes (where available) to verify printf type-correctness. Fix some bugs this turned up. svn:r573
2007-12-06 18:12:56 +00:00
#endif
Fix all warnings in the main codebase flagged by -Wsigned-compare Remember, the code int is_less_than(int a, unsigned b) { return a < b; } is buggy, since the C integer promotion rules basically turn it into int is_less_than(int a, unsigned b) { return ((unsigned)a) < b; } and we really want something closer to int is_less_than(int a, unsigned b) { return a < 0 || ((unsigned)a) < b; } . Suggested by an example from Ralph Castain
2010-09-23 22:45:55 -04:00
#define _EVENT_ERR_ABORT ((int)0xdeaddead)
Add an EVUTIL_ASSERT() to replace our calls to assert(). The big difference here is that EVUTIL_ASSERT() passes its message on via event_errx() before aborting, so that the application has a prayer of noticing and recording it. svn:r1463
2009-10-26 20:00:08 +00:00
Add event_enable_debug_logging() to control use of debug logs Previously, debug logs were turned on if you built with -DUSE_DEBUG and off otherwise. This make builds with -DUSE_DEBUG hideously slow and other builds unable to get debug logs. This is based off a patch by Ralph Castain from October. It tries a little harder to avoid needless function calls, it doesn't require stdbool, and makes the controlling parameter a mask rather than a boolean so that we can later support enabling only the debugging messages for the parts of Libevent you're trying to debug.
2010-12-16 13:58:56 -05:00
#define USE_GLOBAL_FOR_DEBUG_LOGGING
Convert event-config.h macros to avoid reserved identifiers C reserves all identifiers beginning with an underscore for system use. But we had been mangling our autoconf identifiers with the prefix "_EVENT_" to avoid conflict with other programs. Instead, we will now use the prefix "EVENT__". With any luck, the double-underscore will still hint "here be dragons" to anybody tempted to think that event-config.h is a stable api. This is an automatically generated patch. The script that produced it was made by running this script over config.h.in: ===== #!/usr/bin/perl -w # Run this on config.h.in use strict; my %macros = (); while (<>) { if (/^# *undef +([A-Za-z0-9_]+)/) { $macros{$1} = 1; } } print "#!/usr/bin/perl -w -i -p\n\n"; for my $k (sort keys %macros) { print "s/(?<![A-Za-z0-9_])_EVENT_$k(?![A-Za-z0-9_])/EVENT__$k/g;\n"; } == And the script that it generated was then run over all .c and .h files: #!/usr/bin/perl -w -i -p s/(?<![A-Za-z0-9_])_EVENT_DISABLE_DEBUG_MODE(?![A-Za-z0-9_])/EVENT__DISABLE_DEBUG_MODE/g; s/(?<![A-Za-z0-9_])_EVENT_DISABLE_MM_REPLACEMENT(?![A-Za-z0-9_])/EVENT__DISABLE_MM_REPLACEMENT/g; s/(?<![A-Za-z0-9_])_EVENT_DISABLE_THREAD_SUPPORT(?![A-Za-z0-9_])/EVENT__DISABLE_THREAD_SUPPORT/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_ACCEPT4(?![A-Za-z0-9_])/EVENT__HAVE_ACCEPT4/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_ARC4RANDOM(?![A-Za-z0-9_])/EVENT__HAVE_ARC4RANDOM/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_ARC4RANDOM_BUF(?![A-Za-z0-9_])/EVENT__HAVE_ARC4RANDOM_BUF/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_ARPA_INET_H(?![A-Za-z0-9_])/EVENT__HAVE_ARPA_INET_H/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_CLOCK_GETTIME(?![A-Za-z0-9_])/EVENT__HAVE_CLOCK_GETTIME/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_DECL_CTL_KERN(?![A-Za-z0-9_])/EVENT__HAVE_DECL_CTL_KERN/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_DECL_KERN_ARND(?![A-Za-z0-9_])/EVENT__HAVE_DECL_KERN_ARND/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_DECL_KERN_RANDOM(?![A-Za-z0-9_])/EVENT__HAVE_DECL_KERN_RANDOM/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_DECL_RANDOM_UUID(?![A-Za-z0-9_])/EVENT__HAVE_DECL_RANDOM_UUID/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_DEVPOLL(?![A-Za-z0-9_])/EVENT__HAVE_DEVPOLL/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_DLFCN_H(?![A-Za-z0-9_])/EVENT__HAVE_DLFCN_H/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_EPOLL(?![A-Za-z0-9_])/EVENT__HAVE_EPOLL/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_EPOLL_CREATE1(?![A-Za-z0-9_])/EVENT__HAVE_EPOLL_CREATE1/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_EPOLL_CTL(?![A-Za-z0-9_])/EVENT__HAVE_EPOLL_CTL/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_EVENTFD(?![A-Za-z0-9_])/EVENT__HAVE_EVENTFD/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_EVENT_PORTS(?![A-Za-z0-9_])/EVENT__HAVE_EVENT_PORTS/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_FCNTL(?![A-Za-z0-9_])/EVENT__HAVE_FCNTL/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_FCNTL_H(?![A-Za-z0-9_])/EVENT__HAVE_FCNTL_H/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_FD_MASK(?![A-Za-z0-9_])/EVENT__HAVE_FD_MASK/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETADDRINFO(?![A-Za-z0-9_])/EVENT__HAVE_GETADDRINFO/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETEGID(?![A-Za-z0-9_])/EVENT__HAVE_GETEGID/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETEUID(?![A-Za-z0-9_])/EVENT__HAVE_GETEUID/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETHOSTBYNAME_R(?![A-Za-z0-9_])/EVENT__HAVE_GETHOSTBYNAME_R/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETHOSTBYNAME_R_3_ARG(?![A-Za-z0-9_])/EVENT__HAVE_GETHOSTBYNAME_R_3_ARG/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETHOSTBYNAME_R_5_ARG(?![A-Za-z0-9_])/EVENT__HAVE_GETHOSTBYNAME_R_5_ARG/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETHOSTBYNAME_R_6_ARG(?![A-Za-z0-9_])/EVENT__HAVE_GETHOSTBYNAME_R_6_ARG/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETIFADDRS(?![A-Za-z0-9_])/EVENT__HAVE_GETIFADDRS/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETNAMEINFO(?![A-Za-z0-9_])/EVENT__HAVE_GETNAMEINFO/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETPROTOBYNUMBER(?![A-Za-z0-9_])/EVENT__HAVE_GETPROTOBYNUMBER/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETSERVBYNAME(?![A-Za-z0-9_])/EVENT__HAVE_GETSERVBYNAME/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_GETTIMEOFDAY(?![A-Za-z0-9_])/EVENT__HAVE_GETTIMEOFDAY/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_IFADDRS_H(?![A-Za-z0-9_])/EVENT__HAVE_IFADDRS_H/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_INET_ATON(?![A-Za-z0-9_])/EVENT__HAVE_INET_ATON/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_INET_NTOP(?![A-Za-z0-9_])/EVENT__HAVE_INET_NTOP/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_INET_PTON(?![A-Za-z0-9_])/EVENT__HAVE_INET_PTON/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_INTTYPES_H(?![A-Za-z0-9_])/EVENT__HAVE_INTTYPES_H/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_ISSETUGID(?![A-Za-z0-9_])/EVENT__HAVE_ISSETUGID/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_KQUEUE(?![A-Za-z0-9_])/EVENT__HAVE_KQUEUE/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_LIBZ(?![A-Za-z0-9_])/EVENT__HAVE_LIBZ/g; 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s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_TIME_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_TIME_H/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_TYPES_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_TYPES_H/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_UIO_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_UIO_H/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_SYS_WAIT_H(?![A-Za-z0-9_])/EVENT__HAVE_SYS_WAIT_H/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_TAILQFOREACH(?![A-Za-z0-9_])/EVENT__HAVE_TAILQFOREACH/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_TIMERADD(?![A-Za-z0-9_])/EVENT__HAVE_TIMERADD/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_TIMERCLEAR(?![A-Za-z0-9_])/EVENT__HAVE_TIMERCLEAR/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_TIMERCMP(?![A-Za-z0-9_])/EVENT__HAVE_TIMERCMP/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_TIMERISSET(?![A-Za-z0-9_])/EVENT__HAVE_TIMERISSET/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_UINT16_T(?![A-Za-z0-9_])/EVENT__HAVE_UINT16_T/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_UINT32_T(?![A-Za-z0-9_])/EVENT__HAVE_UINT32_T/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_UINT64_T(?![A-Za-z0-9_])/EVENT__HAVE_UINT64_T/g; s/(?<![A-Za-z0-9_])_EVENT_HAVE_UINT8_T(?![A-Za-z0-9_])/EVENT__HAVE_UINT8_T/g; 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s/(?<![A-Za-z0-9_])_EVENT_STDC_HEADERS(?![A-Za-z0-9_])/EVENT__STDC_HEADERS/g; s/(?<![A-Za-z0-9_])_EVENT_TIME_WITH_SYS_TIME(?![A-Za-z0-9_])/EVENT__TIME_WITH_SYS_TIME/g; s/(?<![A-Za-z0-9_])_EVENT_VERSION(?![A-Za-z0-9_])/EVENT__VERSION/g; s/(?<![A-Za-z0-9_])_EVENT__ALL_SOURCE(?![A-Za-z0-9_])/EVENT___ALL_SOURCE/g; s/(?<![A-Za-z0-9_])_EVENT__FILE_OFFSET_BITS(?![A-Za-z0-9_])/EVENT___FILE_OFFSET_BITS/g; s/(?<![A-Za-z0-9_])_EVENT__GNU_SOURCE(?![A-Za-z0-9_])/EVENT___GNU_SOURCE/g; s/(?<![A-Za-z0-9_])_EVENT__LARGE_FILES(?![A-Za-z0-9_])/EVENT___LARGE_FILES/g; s/(?<![A-Za-z0-9_])_EVENT__MINIX(?![A-Za-z0-9_])/EVENT___MINIX/g; s/(?<![A-Za-z0-9_])_EVENT__POSIX_1_SOURCE(?![A-Za-z0-9_])/EVENT___POSIX_1_SOURCE/g; s/(?<![A-Za-z0-9_])_EVENT__POSIX_PTHREAD_SEMANTICS(?![A-Za-z0-9_])/EVENT___POSIX_PTHREAD_SEMANTICS/g; s/(?<![A-Za-z0-9_])_EVENT__POSIX_SOURCE(?![A-Za-z0-9_])/EVENT___POSIX_SOURCE/g; s/(?<![A-Za-z0-9_])_EVENT__TANDEM_SOURCE(?![A-Za-z0-9_])/EVENT___TANDEM_SOURCE/g; s/(?<![A-Za-z0-9_])_EVENT___EXTENSIONS__(?![A-Za-z0-9_])/EVENT____EXTENSIONS__/g; s/(?<![A-Za-z0-9_])_EVENT___func__(?![A-Za-z0-9_])/EVENT____func__/g; s/(?<![A-Za-z0-9_])_EVENT_const(?![A-Za-z0-9_])/EVENT__const/g; s/(?<![A-Za-z0-9_])_EVENT_inline(?![A-Za-z0-9_])/EVENT__inline/g; s/(?<![A-Za-z0-9_])_EVENT_pid_t(?![A-Za-z0-9_])/EVENT__pid_t/g; s/(?<![A-Za-z0-9_])_EVENT_size_t(?![A-Za-z0-9_])/EVENT__size_t/g; s/(?<![A-Za-z0-9_])_EVENT_socklen_t(?![A-Za-z0-9_])/EVENT__socklen_t/g; s/(?<![A-Za-z0-9_])_EVENT_ssize_t(?![A-Za-z0-9_])/EVENT__ssize_t/g;
2012-02-29 15:07:31 -05:00
#if !defined(EVENT__DISABLE_DEBUG_MODE) || defined(USE_DEBUG)
Add event_enable_debug_logging() to control use of debug logs Previously, debug logs were turned on if you built with -DUSE_DEBUG and off otherwise. This make builds with -DUSE_DEBUG hideously slow and other builds unable to get debug logs. This is based off a patch by Ralph Castain from October. It tries a little harder to avoid needless function calls, it doesn't require stdbool, and makes the controlling parameter a mask rather than a boolean so that we can later support enabling only the debugging messages for the parts of Libevent you're trying to debug.
2010-12-16 13:58:56 -05:00
#define EVENT_DEBUG_LOGGING_ENABLED
#endif
#ifdef EVENT_DEBUG_LOGGING_ENABLED
#ifdef USE_GLOBAL_FOR_DEBUG_LOGGING
extern ev_uint32_t _event_debug_logging_mask;
#define _event_debug_get_logging_mask() (_event_debug_logging_mask)
#else
ev_uint32_t _event_debug_get_logging_mask(void);
#endif
#else
#define _event_debug_get_logging_mask() (0)
#endif
Mark the event_err() functions as __attribute__((noreturn)) This attribute tells gcc (and anything else that understands gcc attributes) that the functions will never return control, and helps the optimizer a little. With luck, it will also tell less-than-full-program dataflow analysis tools that they don't need to worry about any code path that involves calling one of these functions and then returning. This patch also forces event_exit() to always exit, no matter what the user-supplied fatal_callback does. This means that the old unit tests for the event_err* functions don't work any more, since they assume it is safe to call event_err* if you've given it a bogus fatal_callback that doesn't exit. Instead, we have to make the unit tests fork before calling event_err(), and have the main unit test process wait for the event_err() test to exit with a sane exit code. On unix, that's trivial. On windows, let's not bother and just assume that event_err* works.
2010-05-13 10:57:30 -04:00
void event_err(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3) EV_NORETURN;
r15171@tombo: nickm | 2007-12-06 12:47:47 -0500 Use GCC attributes (where available) to verify printf type-correctness. Fix some bugs this turned up. svn:r573
2007-12-06 18:12:56 +00:00
void event_warn(const char *fmt, ...) EV_CHECK_FMT(1,2);
Mark the event_err() functions as __attribute__((noreturn)) This attribute tells gcc (and anything else that understands gcc attributes) that the functions will never return control, and helps the optimizer a little. With luck, it will also tell less-than-full-program dataflow analysis tools that they don't need to worry about any code path that involves calling one of these functions and then returning. This patch also forces event_exit() to always exit, no matter what the user-supplied fatal_callback does. This means that the old unit tests for the event_err* functions don't work any more, since they assume it is safe to call event_err* if you've given it a bogus fatal_callback that doesn't exit. Instead, we have to make the unit tests fork before calling event_err(), and have the main unit test process wait for the event_err() test to exit with a sane exit code. On unix, that's trivial. On windows, let's not bother and just assume that event_err* works.
2010-05-13 10:57:30 -04:00
void event_sock_err(int eval, evutil_socket_t sock, const char *fmt, ...) EV_CHECK_FMT(3,4) EV_NORETURN;
Use evutil_socket_t, not int, when logging socket errors.
2009-12-22 00:58:52 -05:00
void event_sock_warn(evutil_socket_t sock, const char *fmt, ...) EV_CHECK_FMT(2,3);
Mark the event_err() functions as __attribute__((noreturn)) This attribute tells gcc (and anything else that understands gcc attributes) that the functions will never return control, and helps the optimizer a little. With luck, it will also tell less-than-full-program dataflow analysis tools that they don't need to worry about any code path that involves calling one of these functions and then returning. This patch also forces event_exit() to always exit, no matter what the user-supplied fatal_callback does. This means that the old unit tests for the event_err* functions don't work any more, since they assume it is safe to call event_err* if you've given it a bogus fatal_callback that doesn't exit. Instead, we have to make the unit tests fork before calling event_err(), and have the main unit test process wait for the event_err() test to exit with a sane exit code. On unix, that's trivial. On windows, let's not bother and just assume that event_err* works.
2010-05-13 10:57:30 -04:00
void event_errx(int eval, const char *fmt, ...) EV_CHECK_FMT(2,3) EV_NORETURN;
r15171@tombo: nickm | 2007-12-06 12:47:47 -0500 Use GCC attributes (where available) to verify printf type-correctness. Fix some bugs this turned up. svn:r573
2007-12-06 18:12:56 +00:00
void event_warnx(const char *fmt, ...) EV_CHECK_FMT(1,2);
void event_msgx(const char *fmt, ...) EV_CHECK_FMT(1,2);
void _event_debugx(const char *fmt, ...) EV_CHECK_FMT(1,2);
do not undefine USE_DEBUG in header file; allow CFLAGS specification; from Stas Bekman svn:r191
2005-12-17 20:18:10 +00:00
Add event_enable_debug_logging() to control use of debug logs Previously, debug logs were turned on if you built with -DUSE_DEBUG and off otherwise. This make builds with -DUSE_DEBUG hideously slow and other builds unable to get debug logs. This is based off a patch by Ralph Castain from October. It tries a little harder to avoid needless function calls, it doesn't require stdbool, and makes the controlling parameter a mask rather than a boolean so that we can later support enabling only the debugging messages for the parts of Libevent you're trying to debug.
2010-12-16 13:58:56 -05:00
#ifdef EVENT_DEBUG_LOGGING_ENABLED
#define event_debug(x) do { \
if (_event_debug_get_logging_mask()) { \
_event_debugx x; \
} \
} while (0)
debugging callbacks from Nick Mathewson <nickm@freehaven.net> svn:r136
2005-03-29 07:03:10 +00:00
#else
Add event_enable_debug_logging() to control use of debug logs Previously, debug logs were turned on if you built with -DUSE_DEBUG and off otherwise. This make builds with -DUSE_DEBUG hideously slow and other builds unable to get debug logs. This is based off a patch by Ralph Castain from October. It tries a little harder to avoid needless function calls, it doesn't require stdbool, and makes the controlling parameter a mask rather than a boolean so that we can later support enabling only the debugging messages for the parts of Libevent you're trying to debug.
2010-12-16 13:58:56 -05:00
#define event_debug(x) ((void)0)
debugging callbacks from Nick Mathewson <nickm@freehaven.net> svn:r136
2005-03-29 07:03:10 +00:00
#endif
r15171@tombo: nickm | 2007-12-06 12:47:47 -0500 Use GCC attributes (where available) to verify printf type-correctness. Fix some bugs this turned up. svn:r573
2007-12-06 18:12:56 +00:00
#undef EV_CHECK_FMT
debugging callbacks from Nick Mathewson <nickm@freehaven.net> svn:r136
2005-03-29 07:03:10 +00:00
#endif
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