Merged revisions 182810 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4 ........ r182810 | russell | 2009-03-17 21:09:13 -0500 (Tue, 17 Mar 2009) | 44 lines Fix cases where the internal poll() was not being used when it needed to be. We have seen a number of problems caused by poll() not working properly on Mac OSX. If you search around, you'll find a number of references to using select() instead of poll() to work around these issues. In Asterisk, we've had poll.c which implements poll() using select() internally. However, we were still getting reports of problems. vadim investigated a bit and realized that at least on his system, even though we were compiling in poll.o, the system poll() was still being used. So, the primary purpose of this patch is to ensure that we're using the internal poll() when we want it to be used. The changes are: 1) Remove logic for when internal poll should be used from the Makefile. Instead, put it in the configure script. The logic in the configure script is the same as it was in the Makefile. Ideally, we would have a functionality test for the problem, but that's not actually possible, since we would have to be able to run an application on the _target_ system to test poll() behavior. 2) Always include poll.o in the build, but it will be empty if AST_POLL_COMPAT is not defined. 3) Change uses of poll() throughout the source tree to ast_poll(). I feel that it is good practice to give the API call a new name when we are changing its behavior and not using the system version directly in all cases. So, normally, ast_poll() is just redefined to poll(). On systems where AST_POLL_COMPAT is defined, ast_poll() is redefined to ast_internal_poll(). 4) Change poll() in main/poll.c to be ast_internal_poll(). It's worth noting that any code that still uses poll() directly will work fine (if they worked fine before). So, for example, out of tree modules that are using poll() will not stop working or anything. However, for modules to work properly on Mac OSX, ast_poll() needs to be used. (closes issue #13404) Reported by: agalbraith Tested by: russell, vadim http://reviewboard.digium.com/r/198/ ........ git-svn-id: http://svn.digium.com/svn/asterisk/trunk@182847 f38db490-d61c-443f-a65b-d21fe96a405b
This commit is contained in:
russell
parent
870bfecfe6
commit
b48669aa8f
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@ -108,7 +108,7 @@ static int timed_read(int fd, void *data, int datalen, int timeout)
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struct pollfd fds[1];
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fds[0].fd = fd;
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fds[0].events = POLLIN;
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res = poll(fds, 1, timeout);
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res = ast_poll(fds, 1, timeout);
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if (res < 1) {
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ast_log(LOG_NOTICE, "Poll timed out/errored out with %d\n", res);
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return -1;
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@ -96,7 +96,7 @@ static int timed_read(int fd, void *data, int datalen)
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struct pollfd fds[1];
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fds[0].fd = fd;
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fds[0].events = POLLIN;
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res = poll(fds, 1, 2000);
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res = ast_poll(fds, 1, 2000);
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if (res < 1) {
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ast_log(LOG_NOTICE, "Selected timed out/errored out with %d\n", res);
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return -1;
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@ -55,6 +55,7 @@ ASTERISK_FILE_VERSION(__FILE__, "$Revision$")
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#include "asterisk/stringfields.h"
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#include "asterisk/abstract_jb.h"
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#include "asterisk/musiconhold.h"
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#include "asterisk/poll-compat.h"
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/*! Global jitterbuffer configuration - by default, jb is disabled */
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static struct ast_jb_conf default_jbconf = {
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@ -6248,7 +6248,7 @@ static int get_input(struct skinnysession *s)
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fds[0].fd = s->fd;
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fds[0].events = POLLIN;
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fds[0].revents = 0;
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res = poll(fds, 1, (keep_alive * 1100)); /* If nothing has happen, client is dead */
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res = ast_poll(fds, 1, (keep_alive * 1100)); /* If nothing has happen, client is dead */
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/* we add 10% to the keep_alive to deal */
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/* with network delays, etc */
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if (res < 0) {
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@ -4104,6 +4104,13 @@ case "${host_os}" in
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fi
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CPPFLAGS=-I/usr/local/include
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LDFLAGS=-L/usr/local/lib
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;;
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darwin*)
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cat >>confdefs.h <<\_ACEOF
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#define AST_POLL_COMPAT 1
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_ACEOF
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;;
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*)
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ac_default_prefix=/usr
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@ -11239,6 +11246,148 @@ fi
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done
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if test "${ac_cv_header_sys_poll_h+set}" = set; then
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{ echo "$as_me:$LINENO: checking for sys/poll.h" >&5
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echo $ECHO_N "checking for sys/poll.h... $ECHO_C" >&6; }
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if test "${ac_cv_header_sys_poll_h+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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fi
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{ echo "$as_me:$LINENO: result: $ac_cv_header_sys_poll_h" >&5
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echo "${ECHO_T}$ac_cv_header_sys_poll_h" >&6; }
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else
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# Is the header compilable?
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{ echo "$as_me:$LINENO: checking sys/poll.h usability" >&5
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echo $ECHO_N "checking sys/poll.h usability... $ECHO_C" >&6; }
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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$ac_includes_default
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#include <sys/poll.h>
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_ACEOF
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rm -f conftest.$ac_objext
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if { (ac_try="$ac_compile"
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case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_compile") 2>conftest.er1
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ac_status=$?
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grep -v '^ *+' conftest.er1 >conftest.err
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rm -f conftest.er1
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cat conftest.err >&5
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } && {
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test -z "$ac_c_werror_flag" ||
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test ! -s conftest.err
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} && test -s conftest.$ac_objext; then
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ac_header_compiler=yes
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else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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ac_header_compiler=no
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fi
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rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
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{ echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
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echo "${ECHO_T}$ac_header_compiler" >&6; }
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# Is the header present?
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{ echo "$as_me:$LINENO: checking sys/poll.h presence" >&5
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echo $ECHO_N "checking sys/poll.h presence... $ECHO_C" >&6; }
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cat >conftest.$ac_ext <<_ACEOF
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/* confdefs.h. */
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_ACEOF
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cat confdefs.h >>conftest.$ac_ext
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cat >>conftest.$ac_ext <<_ACEOF
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/* end confdefs.h. */
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#include <sys/poll.h>
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_ACEOF
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if { (ac_try="$ac_cpp conftest.$ac_ext"
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case "(($ac_try" in
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*\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
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*) ac_try_echo=$ac_try;;
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esac
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eval "echo \"\$as_me:$LINENO: $ac_try_echo\"") >&5
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(eval "$ac_cpp conftest.$ac_ext") 2>conftest.er1
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ac_status=$?
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grep -v '^ *+' conftest.er1 >conftest.err
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rm -f conftest.er1
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cat conftest.err >&5
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echo "$as_me:$LINENO: \$? = $ac_status" >&5
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(exit $ac_status); } >/dev/null && {
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test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
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test ! -s conftest.err
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}; then
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ac_header_preproc=yes
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else
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echo "$as_me: failed program was:" >&5
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sed 's/^/| /' conftest.$ac_ext >&5
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ac_header_preproc=no
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fi
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rm -f conftest.err conftest.$ac_ext
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{ echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
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echo "${ECHO_T}$ac_header_preproc" >&6; }
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# So? What about this header?
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case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in
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yes:no: )
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{ echo "$as_me:$LINENO: WARNING: sys/poll.h: accepted by the compiler, rejected by the preprocessor!" >&5
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echo "$as_me: WARNING: sys/poll.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
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{ echo "$as_me:$LINENO: WARNING: sys/poll.h: proceeding with the compiler's result" >&5
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echo "$as_me: WARNING: sys/poll.h: proceeding with the compiler's result" >&2;}
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ac_header_preproc=yes
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;;
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no:yes:* )
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{ echo "$as_me:$LINENO: WARNING: sys/poll.h: present but cannot be compiled" >&5
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echo "$as_me: WARNING: sys/poll.h: present but cannot be compiled" >&2;}
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{ echo "$as_me:$LINENO: WARNING: sys/poll.h: check for missing prerequisite headers?" >&5
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echo "$as_me: WARNING: sys/poll.h: check for missing prerequisite headers?" >&2;}
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{ echo "$as_me:$LINENO: WARNING: sys/poll.h: see the Autoconf documentation" >&5
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echo "$as_me: WARNING: sys/poll.h: see the Autoconf documentation" >&2;}
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{ echo "$as_me:$LINENO: WARNING: sys/poll.h: section \"Present But Cannot Be Compiled\"" >&5
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echo "$as_me: WARNING: sys/poll.h: section \"Present But Cannot Be Compiled\"" >&2;}
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{ echo "$as_me:$LINENO: WARNING: sys/poll.h: proceeding with the preprocessor's result" >&5
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echo "$as_me: WARNING: sys/poll.h: proceeding with the preprocessor's result" >&2;}
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{ echo "$as_me:$LINENO: WARNING: sys/poll.h: in the future, the compiler will take precedence" >&5
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echo "$as_me: WARNING: sys/poll.h: in the future, the compiler will take precedence" >&2;}
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( cat <<\_ASBOX
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## ------------------------------- ##
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## Report this to www.asterisk.org ##
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## ------------------------------- ##
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_ASBOX
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) | sed "s/^/$as_me: WARNING: /" >&2
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;;
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esac
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{ echo "$as_me:$LINENO: checking for sys/poll.h" >&5
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echo $ECHO_N "checking for sys/poll.h... $ECHO_C" >&6; }
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if test "${ac_cv_header_sys_poll_h+set}" = set; then
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echo $ECHO_N "(cached) $ECHO_C" >&6
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else
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ac_cv_header_sys_poll_h=$ac_header_preproc
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fi
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{ echo "$as_me:$LINENO: result: $ac_cv_header_sys_poll_h" >&5
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echo "${ECHO_T}$ac_cv_header_sys_poll_h" >&6; }
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fi
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if test $ac_cv_header_sys_poll_h = yes; then
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:
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else
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cat >>confdefs.h <<\_ACEOF
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#define AST_POLL_COMPAT 1
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_ACEOF
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fi
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# Check whether --enable-largefile was given.
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if test "${enable_largefile+set}" = set; then
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enableval=$enable_largefile;
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@ -44,6 +44,9 @@ case "${host_os}" in
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CPPFLAGS=-I/usr/local/include
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LDFLAGS=-L/usr/local/lib
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;;
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darwin*)
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AC_DEFINE([AST_POLL_COMPAT], 1, [Define to 1 if internal poll should be used.])
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;;
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*)
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ac_default_prefix=/usr
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if test ${prefix} = '/usr' || test ${prefix} = 'NONE'; then
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@ -304,6 +307,10 @@ AC_CHECK_HEADERS([arpa/inet.h fcntl.h inttypes.h libintl.h limits.h locale.h mal
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AC_CHECK_HEADERS([winsock.h winsock2.h])
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AC_CHECK_HEADER([sys/poll.h],
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[],
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AC_DEFINE([AST_POLL_COMPAT], 1, [Define to 1 if internal poll should be used.]))
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AC_SYS_LARGEFILE
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# Checks for typedefs, structures, and compiler characteristics.
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@ -7,6 +7,9 @@
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/* Define to 1 if internal poll should be used. */
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#undef AST_POLL_COMPAT
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/* Define to 1 if the `closedir' function returns void instead of `int'. */
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#undef CLOSEDIR_VOID
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@ -125,11 +125,7 @@ References:
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#include "asterisk/abstract_jb.h"
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#ifdef HAVE_SYS_POLL_H
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#include <sys/poll.h>
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#else
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#include "asterisk/poll-compat.h"
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#endif
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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@ -23,11 +23,7 @@
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#ifndef _ASTERISK_IO_H
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#define _ASTERISK_IO_H
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#ifdef HAVE_SYS_POLL_H
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#include <sys/poll.h> /* For POLL* constants */
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#else
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#include "asterisk/poll-compat.h"
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#endif
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#if defined(__cplusplus) || defined(c_plusplus)
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extern "C" {
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@ -76,8 +76,16 @@
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original.
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\*---------------------------------------------------------------------------*/
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#ifndef _POLL_EMUL_H_
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#define _POLL_EMUL_H_
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#ifndef __AST_POLL_COMPAT_H
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#define __AST_POLL_COMPAT_H
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#ifndef AST_POLL_COMPAT
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#include <sys/poll.h>
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#define ast_poll(a, b, c) poll(a, b, c)
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#else /* AST_POLL_COMPAT */
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#define POLLIN 0x01
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#define POLLPRI 0x02
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@ -86,26 +94,24 @@
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#define POLLHUP 0x10
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#define POLLNVAL 0x20
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struct pollfd
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{
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struct pollfd {
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int fd;
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short events;
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short revents;
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};
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#ifdef __cplusplus
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extern "C"
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{
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extern "C" {
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#endif
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#if (__STDC__ > 0) || defined(__cplusplus)
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extern int poll (struct pollfd *pArray, unsigned long n_fds, int timeout);
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#else
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extern int poll();
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#endif
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#define ast_poll(a, b, c) ast_internal_poll(a, b, c)
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int ast_internal_poll(struct pollfd *pArray, unsigned long n_fds, int timeout);
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#ifdef __cplusplus
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}
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#endif
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#endif /* _POLL_EMUL_H_ */
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#endif /* AST_POLL_COMPAT */
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#endif /* __AST_POLL_COMPAT_H */
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@ -29,7 +29,7 @@ OBJS= tcptls.o io.o sched.o logger.o frame.o loader.o config.o channel.o \
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strcompat.o threadstorage.o dial.o event.o adsistub.o audiohook.o \
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astobj2.o hashtab.o global_datastores.o version.o \
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features.o taskprocessor.o timing.o datastore.o xml.o xmldoc.o \
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strings.o bridging.o
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strings.o bridging.o poll.o
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# we need to link in the objects statically, not as a library, because
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# otherwise modules will not have them available if none of the static
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@ -44,14 +44,6 @@ AST_LIBS += $(OPENSSL_LIB)
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AST_LIBS += $(BKTR_LIB)
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AST_LIBS += $(LIBXML2_LIB)
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ifeq ($(POLL_AVAILABLE),)
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OBJS+=poll.o
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else
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ifneq ($(findstring darwin,$(OSARCH)),)
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OBJS+=poll.o
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endif
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endif
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ifneq ($(findstring $(OSARCH), linux-gnu uclinux linux-uclibc linux-gnueabi ),)
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ifneq ($(findstring LOADABLE_MODULES,$(MENUSELECT_CFLAGS)),)
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AST_LIBS+=-ldl
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|
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@ -137,6 +137,7 @@ int daemon(int, int); /* defined in libresolv of all places */
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#include "asterisk/dsp.h"
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#include "asterisk/buildinfo.h"
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#include "asterisk/xmldoc.h"
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#include "asterisk/poll-compat.h"
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#include "asterisk/doxyref.h" /* Doxygen documentation */
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@ -1213,7 +1214,7 @@ static void *netconsole(void *vconsole)
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fds[1].events = POLLIN;
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fds[1].revents = 0;
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res = poll(fds, 2, -1);
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res = ast_poll(fds, 2, -1);
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if (res < 0) {
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if (errno != EINTR)
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ast_log(LOG_WARNING, "poll returned < 0: %s\n", strerror(errno));
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@ -1266,7 +1267,7 @@ static void *listener(void *unused)
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return NULL;
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fds[0].fd = ast_socket;
|
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fds[0].events = POLLIN;
|
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s = poll(fds, 1, -1);
|
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s = ast_poll(fds, 1, -1);
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pthread_testcancel();
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if (s < 0) {
|
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if (errno != EINTR)
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|
|
@ -2081,7 +2082,7 @@ static int ast_el_read_char(EditLine *editline, char *cp)
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fds[1].events = POLLIN;
|
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max++;
|
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}
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res = poll(fds, max, -1);
|
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res = ast_poll(fds, max, -1);
|
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if (res < 0) {
|
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if (sig_flags.need_quit)
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break;
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|
|
@ -2649,7 +2650,7 @@ static void ast_remotecontrol(char *data)
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fds.fd = ast_consock;
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fds.events = POLLIN;
|
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fds.revents = 0;
|
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while (poll(&fds, 1, 500) > 0) {
|
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while (ast_poll(&fds, 1, 500) > 0) {
|
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char buffer[512] = "", *curline = buffer, *nextline;
|
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int not_written = 1;
|
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|
||||
|
|
@ -3013,7 +3014,7 @@ static void *monitor_sig_flags(void *unused)
|
|||
for (;;) {
|
||||
struct pollfd p = { sig_alert_pipe[0], POLLIN, 0 };
|
||||
int a;
|
||||
poll(&p, 1, -1);
|
||||
ast_poll(&p, 1, -1);
|
||||
if (sig_flags.need_reload) {
|
||||
sig_flags.need_reload = 0;
|
||||
ast_module_reload(NULL);
|
||||
|
|
|
|||
|
|
@ -2029,12 +2029,12 @@ struct ast_channel *ast_waitfor_nandfds(struct ast_channel **c, int n, int *fds,
|
|||
int kbrms = rms;
|
||||
if (kbrms > 600000)
|
||||
kbrms = 600000;
|
||||
res = poll(pfds, max, kbrms);
|
||||
res = ast_poll(pfds, max, kbrms);
|
||||
if (!res)
|
||||
rms -= kbrms;
|
||||
} while (!res && (rms > 0));
|
||||
} else {
|
||||
res = poll(pfds, max, rms);
|
||||
res = ast_poll(pfds, max, rms);
|
||||
}
|
||||
for (x = 0; x < n; x++)
|
||||
ast_clear_flag(c[x], AST_FLAG_BLOCKING);
|
||||
|
|
|
|||
|
|
@ -272,8 +272,9 @@ int ast_io_wait(struct io_context *ioc, int howlong)
|
|||
|
||||
DEBUG(ast_debug(1, "ast_io_wait()\n"));
|
||||
|
||||
if ((res = poll(ioc->fds, ioc->fdcnt, howlong)) <= 0)
|
||||
if ((res = ast_poll(ioc->fds, ioc->fdcnt, howlong)) <= 0) {
|
||||
return res;
|
||||
}
|
||||
|
||||
/* At least one event tripped */
|
||||
origcnt = ioc->fdcnt;
|
||||
|
|
|
|||
23
main/poll.c
23
main/poll.c
|
|
@ -71,6 +71,8 @@
|
|||
Includes
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
#include "asterisk.h"
|
||||
|
||||
#include <unistd.h> /* standard Unix definitions */
|
||||
#include <sys/types.h> /* system types */
|
||||
#include <sys/time.h> /* time definitions */
|
||||
|
|
@ -79,6 +81,8 @@
|
|||
|
||||
#include "asterisk/poll-compat.h" /* this package */
|
||||
|
||||
#ifdef AST_POLL_COMPAT
|
||||
|
||||
/*---------------------------------------------------------------------------*\
|
||||
Macros
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
|
@ -87,7 +91,6 @@
|
|||
#define MAX(a,b) ((a) > (b) ? (a) : (b))
|
||||
#endif
|
||||
|
||||
|
||||
/*---------------------------------------------------------------------------*\
|
||||
Private Functions
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
|
@ -203,7 +206,7 @@ static struct timeval *map_timeout
|
|||
|
||||
return pResult;
|
||||
}
|
||||
|
||||
|
||||
static void map_select_results
|
||||
#if __STDC__ > 0
|
||||
(struct pollfd *pArray,
|
||||
|
|
@ -246,22 +249,12 @@ static void map_select_results
|
|||
|
||||
return;
|
||||
}
|
||||
|
||||
|
||||
/*---------------------------------------------------------------------------*\
|
||||
Public Functions
|
||||
\*---------------------------------------------------------------------------*/
|
||||
|
||||
int poll
|
||||
|
||||
#if __STDC__ > 0
|
||||
(struct pollfd *pArray, unsigned long n_fds, int timeout)
|
||||
#else
|
||||
(pArray, n_fds, timeout)
|
||||
struct pollfd *pArray;
|
||||
unsigned long n_fds;
|
||||
int timeout;
|
||||
#endif
|
||||
|
||||
int ast_internal_poll(struct pollfd *pArray, unsigned long n_fds, int timeout)
|
||||
{
|
||||
fd_set read_descs; /* input file descs */
|
||||
fd_set write_descs; /* output file descs */
|
||||
|
|
@ -295,3 +288,5 @@ int poll
|
|||
|
||||
return ready_descriptors;
|
||||
}
|
||||
|
||||
#endif /* AST_POLL_COMPAT */
|
||||
|
|
|
|||
|
|
@ -1054,7 +1054,7 @@ int ast_wait_for_input(int fd, int ms)
|
|||
memset(pfd, 0, sizeof(pfd));
|
||||
pfd[0].fd = fd;
|
||||
pfd[0].events = POLLIN|POLLPRI;
|
||||
return poll(pfd, 1, ms);
|
||||
return ast_poll(pfd, 1, ms);
|
||||
}
|
||||
|
||||
static int ast_wait_for_output(int fd, int timeoutms)
|
||||
|
|
@ -1068,7 +1068,7 @@ static int ast_wait_for_output(int fd, int timeoutms)
|
|||
int elapsed = 0;
|
||||
|
||||
/* poll() until the fd is writable without blocking */
|
||||
while ((res = poll(&pfd, 1, timeoutms - elapsed)) <= 0) {
|
||||
while ((res = ast_poll(&pfd, 1, timeoutms - elapsed)) <= 0) {
|
||||
if (res == 0) {
|
||||
/* timed out. */
|
||||
ast_log(LOG_NOTICE, "Timed out trying to write\n");
|
||||
|
|
|
|||
|
|
@ -814,7 +814,7 @@ static enum agi_result launch_netscript(char *agiurl, char *argv[], int *fds, in
|
|||
|
||||
pfds[0].fd = s;
|
||||
pfds[0].events = POLLOUT;
|
||||
while ((res = poll(pfds, 1, MAX_AGI_CONNECT)) != 1) {
|
||||
while ((res = ast_poll(pfds, 1, MAX_AGI_CONNECT)) != 1) {
|
||||
if (errno != EINTR) {
|
||||
if (!res) {
|
||||
ast_log(LOG_WARNING, "FastAGI connection to '%s' timed out after MAX_AGI_CONNECT (%d) milliseconds.\n",
|
||||
|
|
|
|||
Reference in New Issue