New msgqueue implementation, use CLOCK_MONOTONIC if available.

Start of socket definitions.

1 files changed, 60 insertions, 0 deletions

diff --git a/src/platform/posix/posix_config.h b/src/platform/posix/posix_config.h
new file mode 100644
index 00000000..1e83a948
--- /dev/null
+++ b/src/platform/posix/posix_config.h
@@ -0,0 +1,60 @@
+/*
+ * Copyright 2016 Garrett D'Amore <garrett@damore.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+/*
+ * The following adjustments to the platform may be defined.  These can
+ * be defined in either platform/config.h or loaded in via external
+ * defines using cmake.
+ *
+ * #define NNG_USE_GETTIMEOFDAY
+ *	This macro is defined if you lack a working clock_gettime,
+ *	nanosleep, or pthread_condattr_setclock.  In this case the
+ *	library uses the system clock for relative sleeps, timers, etc.
+ *	This can be dangerous if the system clock is changed, so only
+ *	use this if you have no other choice.  If it appears that
+ *	the system lacks clock_gettime, then it will choose this automatically.
+ *	This value may be ignored on platforms that don't use POSIX clocks.
+ *
+ * #define NNG_USE_CLOCKID
+ *	This macro may be defined to a different clock id (see 
+ *	clock_gettime()).  By default we use CLOCK_MONOTONIC if it exists,
+ *	or CLOCK_REALTIME otherwise.  This is ignored if NNG_USE_GETTIMEOFDAY
+ *	is defined.  Platforms that don't use POSIX clocks will probably
+ *	ignore any setting here.
+ *
+ * #define NNG_HAVE_BACKTRACE
+ *	If your system has a working backtrace(), and backtrace_symbols(),
+ *	along with <execinfo.h>, you can define this to get richer backtrace
+ *	information for debugging.
+ */
+
+#include <time.h>
+
+#ifndef	CLOCK_REALTIME
+#define	NNG_USE_GETTIMEOFDAY
+#elif !defined(NNG_USE_CLOCKID)
+#ifdef	CLOCK_MONOTONIC
+#define	NNG_USE_CLOCKID	CLOCK_MONOTONIC
+#else
+#define	NNG_USE_CLOCKID	CLOCK_REALTIME
+#endif
+#endif	/* CLOCK_REALTIME */