qt5base-lts/tests/manual/qt_poll/qt_poll.pro

CONFIG += testcase
TARGET = tst_qt_poll
QT = core-private network testlib
INCLUDEPATH += ../../../src/corelib/kernel
SOURCES += \
    tst_qt_poll.cpp \
    ../../../src/corelib/kernel/qpoll.cpp
Add qt_safe_poll This function is introduced to safely provide poll(2)-like semantics for socket multiplexing on Unix-like platforms. For platforms where no poll system call is available, an implementation based on select(2) is provided. Change-Id: I320e97dae5924316675a74d1897c48cae292ac6d Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> 2015-10-15 13:04:17 +00:00			`CONFIG += testcase`
			`TARGET = tst_qt_poll`
			`QT = core-private network testlib`
qt_poll: split out into separate file and sanitize build The qt_poll function calls recv to query whether fds marked by select as readable should be marked POLLIN or POLLHUP in the pollfd structure. On many platforms such as QNX this requires extra link-time libraries which were not previously required by QtCore. While the qt_poll function is intended as a fallback mechanism only for those platforms which do not implement poll natively, the function was compiled unconditionally whenever QT_BUILD_INTERNAL was defined, e.g. in developer builds. Additionally the function was included on those systems that define poll in system headers so that configure determines build-time availability, but do not define _POSIX_POLL > 0 or indicate POSIX:2008 compliance via either the _POSIX_VERSION or _XOPEN_VERSION macros. On those systems a sysconf query for _SC_POLL was performed to determine at runtime whether to call the system poll or qt_poll. Both of these cases are in fact counterproductive. In the first case the sole consumer of the function is a single manual unit test. In the second, to my knowledge no platform requires the runtime fallback. Despite that, we were forcing an extra dylib in both cases. Both cases are fixed by 1) moving the implementation into its own file for the unit test to include and 2) dropping the dynamic fallback if configure determines availability of poll at compile-time. This also reverts commit 13777097118c496391d4b9656b95097ac25e4a40, which added -lsocket for QtCore on QNX. Change-Id: I2dd10695c5d4cac81b68d2c2558797f3cdabc153 Reviewed-by: James McDonnell <jmcdonnell@qnx.com> Reviewed-by: Thiago Macieira <thiago.macieira@intel.com> 2015-12-03 01:22:32 +00:00			`INCLUDEPATH += ../../../src/corelib/kernel`
			`SOURCES += \`
			`tst_qt_poll.cpp \`
			`../../../src/corelib/kernel/qpoll.cpp`