merge 'lennart' branch back into trunk.

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1971 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/pulsecore/macro.h

@@ -0,0 +1,149 @@
+#ifndef foopulsemacrohfoo
+#define foopulsemacrohfoo
+
+/* $Id$ */
+
+/***
+  This file is part of PulseAudio.
+
+  Copyright 2004-2006 Lennart Poettering
+
+  PulseAudio is free software; you can redistribute it and/or modify
+  it under the terms of the GNU Lesser General Public License as published
+  by the Free Software Foundation; either version 2 of the License,
+  or (at your option) any later version.
+
+  PulseAudio is distributed in the hope that it will be useful, but
+  WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+  General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public License
+  along with PulseAudio; if not, write to the Free Software
+  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+  USA.
+***/
+
+#include <sys/types.h>
+#include <unistd.h>
+#include <assert.h>
+#include <limits.h>
+#include <unistd.h>
+
+#include <pulsecore/log.h>
+
+#ifndef PACKAGE
+#error "Please include config.h before including this file!"
+#endif
+
+#if defined(PAGE_SIZE)
+#define PA_PAGE_SIZE ((size_t) PAGE_SIZE)
+#elif defined(PAGESIZE)
+#define PA_PAGE_SIZE ((size_t) PAGESIZE)
+#elif defined(HAVE_SYSCONF)
+#define PA_PAGE_SIZE ((size_t) (sysconf(_SC_PAGE_SIZE)))
+#else
+/* Let's hope it's like x86. */
+#define PA_PAGE_SIZE ((size_t) 4096)
+#endif
+
+static inline size_t pa_align(size_t l) {
+    return (((l + sizeof(void*) - 1) / sizeof(void*)) * sizeof(void*));
+}
+#define PA_ALIGN(x) (pa_align(x))
+
+static inline void* pa_page_align_ptr(const void *p) {
+    return (void*) (((size_t) p) & ~(PA_PAGE_SIZE-1));
+}
+#define PA_PAGE_ALIGN_PTR(x) (pa_page_align_ptr(x))
+
+static inline size_t pa_page_align(size_t l) {
+    return l & ~(PA_PAGE_SIZE-1);
+}
+#define PA_PAGE_ALIGN(x) (pa_page_align(x))
+
+#define PA_ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0]))
+
+#ifndef MAX
+#define MAX(a, b) ((a) > (b) ? (a) : (b))
+#endif
+
+#ifndef MIN
+#define MIN(a, b) ((a) < (b) ? (a) : (b))
+#endif
+
+#ifndef CLAMP
+#define CLAMP(x, low, high)  (((x) > (high)) ? (high) : (((x) < (low)) ? (low) : (x)))
+#endif
+
+/* This type is not intended to be used in exported APIs! Use classic "int" there! */
+#ifdef HAVE_STD_BOOL
+typedef _Bool pa_bool_t;
+#else
+typedef int pa_bool_t;
+#endif
+
+#ifndef FALSE
+#define FALSE ((pa_bool_t) 0)
+#endif
+
+#ifndef TRUE
+#define TRUE (!FALSE)
+#endif
+
+#ifdef __GNUC__
+#define PA_PRETTY_FUNCTION __PRETTY_FUNCTION__
+#else
+#define PA_PRETTY_FUNCTION ""
+#endif
+
+#define pa_return_if_fail(expr) \
+    do { \
+        if (!(expr)) { \
+            pa_log_debug("%s: Assertion <%s> failed.\n", PA_PRETTY_FUNCTION, #expr ); \
+            return; \
+        } \
+    } while(0)
+
+#define pa_return_val_if_fail(expr, val) \
+    do { \
+        if (!(expr)) { \
+            pa_log_debug("%s: Assertion <%s> failed.\n", PA_PRETTY_FUNCTION, #expr ); \
+            return (val); \
+        } \
+    } while(0)
+
+#define pa_return_null_if_fail(expr) pa_return_val_if_fail(expr, NULL)
+
+#define pa_assert assert
+
+#define pa_assert_not_reached() pa_assert(!"Should not be reached.")
+
+/* An assert which guarantees side effects of x */
+#ifdef NDEBUG
+#define pa_assert_se(x) x
+#else
+#define pa_assert_se(x) pa_assert(x)
+#endif
+
+#define PA_PTR_TO_UINT(p) ((unsigned int) (unsigned long) (p))
+#define PA_UINT_TO_PTR(u) ((void*) (unsigned long) (u))
+
+#define PA_PTR_TO_UINT32(p) ((uint32_t) PA_PTR_TO_UINT(p))
+#define PA_UINT32_TO_PTR(u) PA_UINT_TO_PTR((uint32_t) u)
+
+#define PA_PTR_TO_INT(p) ((int) PA_PTR_TO_UINT(p))
+#define PA_INT_TO_PTR(u) PA_UINT_TO_PTR((int) u)
+
+#define PA_PTR_TO_INT32(p) ((int32_t) PA_PTR_TO_UINT(p))
+#define PA_INT32_TO_PTR(u) PA_UINT_TO_PTR((int32_t) u)
+
+#ifdef OS_IS_WIN32
+#define PA_PATH_SEP "\\"
+#define PA_PATH_SEP_CHAR '\\'
+#else
+#define PA_PATH_SEP "/"
+#define PA_PATH_SEP_CHAR '/'
+#endif
+
+#endif