More robust platform definition support.

The idea is that someday it will be possible to just concatenate the entire
set of source files into a single giant source file, for systems that
want to work this way.  As a result, the build system now compiles every
file, although some of them will not have any definitions.

1 files changed, 0 insertions, 237 deletions

diff --git a/src/platform/posix/posix_synch.h b/src/platform/posix/posix_synch.h
deleted file mode 100644
index d3e44411..00000000
--- a/src/platform/posix/posix_synch.h
+++ /dev/null
@@ -1,237 +0,0 @@
-/*
- * 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.
- */
-
-/*
- * This is more of a direct #include of a .c rather than .h file.
- * But having it be a .h makes compiler rules work out properly.  Do
- * not include this more than once into your program, or you will
- * get multiple symbols defined.
- */
-
-/*
- * POSIX synchronization (mutexes and condition variables).  This uses
- * pthreads.
- */
-
-#include <pthread.h>
-#include <time.h>
-
-struct nni_mutex {
-	pthread_mutex_t	mx;
-};
-
-struct nni_cond {
-	pthread_cond_t	cv;
-	pthread_mutex_t	*mx;
-};
-
-int
-nni_mutex_create(nni_mutex_t *mp)
-{
-	struct nni_mutex *m;
-	pthread_mutexattr_t attr;
-	int rv;
-
-	if ((m = nni_alloc(sizeof (*m))) == NULL) {
-		return (NNG_ENOMEM);
-	}
-
-	/* We ask for more error checking... */
-	if (pthread_mutexattr_init(&attr) != 0) {
-		nni_free(m, sizeof (*m));
-		return (NNG_ENOMEM);
-	}
-
-	if (pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_ERRORCHECK) != 0) {
-		nni_panic("pthread_mutexattr_settype failed");
-	}
-
-	rv = pthread_mutex_init(&m->mx, &attr);
-
-	if (pthread_mutexattr_destroy(&attr) != 0) {
-		nni_panic("pthread_mutexattr_destroy failed");
-	}
-
-	if (rv != 0) {
-		nni_free(m, sizeof (*m));
-		return (NNG_ENOMEM);
-	}
-	*mp = m;
-	return (0);
-}
-
-void
-nni_mutex_destroy(nni_mutex_t m)
-{
-	if (pthread_mutex_destroy(&m->mx) != 0) {
-		nni_panic("pthread_mutex_destroy failed");
-	}
-	nni_free(m, sizeof (*m));
-}
-
-void
-nni_mutex_enter(nni_mutex_t m)
-{
-	if (pthread_mutex_lock(&m->mx) != 0) {
-		nni_panic("pthread_mutex_lock failed");
-	}
-}
-
-void
-nni_mutex_exit(nni_mutex_t m)
-{
-	if (pthread_mutex_unlock(&m->mx) != 0) {
-		nni_panic("pthread_mutex_unlock failed");
-	}
-}
-
-int
-nni_mutex_tryenter(nni_mutex_t m)
-{
-	if (pthread_mutex_trylock(&m->mx) != 0) {
-		return (NNG_EBUSY);
-	}
-	return (0);
-}
-
-int
-cond_attr(pthread_condattr_t **attrpp)
-{
-#if defined(NNG_USE_GETTIMEOFDAY) || NNG_USE_CLOCKID == CLOCK_REALTIME
-	*attrpp = NULL;
-	return (0);
-#else
-	/* In order to make this fast, avoid reinitializing attrs. */
-	static pthread_condattr_t attr;
-	static pthread_mutex_t mx = PTHREAD_MUTEX_INITIALIZER;
-	static int init = 0;
-	int rv;
-
-	/*
-	 * For efficiency's sake, we try to reuse the same attr for the
-	 * life of the library.  This avoids many reallocations.  Technically
-	 * this means that we will leak the attr on exit(), but this is
-	 * preferable to constantly allocating and reallocating it.
-	 */
-	if (init) {
-		*attrpp = &attr;
-		return (0);
-	}
-
-	(void) pthread_mutex_lock(&mx);
-	while (!init) {
-		if ((rv = pthread_condattr_init(&attr)) != 0) {
-			(void) pthread_mutex_unlock(&mx);
-			return (NNG_ENOMEM);
-		}
-		rv = pthread_condattr_setclock(&attr, NNG_USE_CLOCKID);
-		if (rv != 0) {
-			nni_panic("condattr_setclock: %s", strerror(rv));
-		}
-		init = 1;
-	}
-	(void) pthread_mutex_unlock(&mx);
-	*attrpp = &attr;
-	return (0);
-#endif
-}
-
-int
-nni_cond_create(nni_cond_t *cvp, nni_mutex_t mx)
-{
-	/*
-	 * By preference, we use a CLOCK_MONOTONIC version of condition
-	 * variables, which insulates us from changes to the system time.
-	 */
-	struct nni_cond *c;
-	pthread_condattr_t *attrp;
-	int rv;
-
-	if ((rv = cond_attr(&attrp)) != 0) {
-		return (rv);
-	}
-	if ((c = nni_alloc(sizeof (*c))) == NULL) {
-		return (NNG_ENOMEM);
-	}
-	c->mx = &mx->mx;
-	if (pthread_cond_init(&c->cv, attrp) != 0) {
-		/* In theory could be EAGAIN, but handle like ENOMEM */
-		nni_free(c, sizeof (*c));
-		return (NNG_ENOMEM);
-	}
-	*cvp = c;
-	return (0);
-}
-
-void
-nni_cond_destroy(nni_cond_t c)
-{
-	if (pthread_cond_destroy(&c->cv) != 0) {
-		nni_panic("pthread_cond_destroy failed");
-	}
-	nni_free(c, sizeof (*c));
-}
-
-void
-nni_cond_signal(nni_cond_t c)
-{
-	if (pthread_cond_signal(&c->cv) != 0) {
-		nni_panic("pthread_cond_signal failed");
-	}
-}
-
-void
-nni_cond_broadcast(nni_cond_t c)
-{
-	if (pthread_cond_broadcast(&c->cv) != 0) {
-		nni_panic("pthread_cond_broadcast failed");
-	}
-}
-
-void
-nni_cond_wait(nni_cond_t c)
-{
-	if (pthread_cond_wait(&c->cv, c->mx) != 0) {
-		nni_panic("pthread_cond_wait failed");
-	}
-}
-
-int
-nni_cond_timedwait(nni_cond_t c, uint64_t usec)
-{
-	struct timespec ts;
-	int rv;
-
-	usec += nni_clock();
-
-	ts.tv_sec = usec / 1000000;
-	ts.tv_nsec = (usec % 10000) * 1000;
-
-	rv = pthread_cond_timedwait(&c->cv, c->mx, &ts);
-
-	if (rv == ETIMEDOUT) {
-		return (NNG_ETIMEDOUT);
-	} else if (rv != 0) {
-		nni_panic("pthread_cond_timedwait returned %d", rv);
-	}
-	return (0);
-}