initial code repo

[stor4nfv.git] / src / ceph / src / include / compat.h

diff --git a/src/ceph/src/include/compat.h b/src/ceph/src/include/compat.h
new file mode 100644 (file)
index 0000000..d412047
--- /dev/null
+++ b/src/ceph/src/include/compat.h
@@ -0,0 +1,168 @@
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2011 Stanislav Sedov <stas@FreeBSD.org>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ */
+
+#ifndef CEPH_COMPAT_H
+#define CEPH_COMPAT_H
+
+#include "acconfig.h"
+
+#if defined(__linux__)
+#define PROCPREFIX
+#endif
+
+#if defined(__FreeBSD__)
+
+// FreeBSD supports Linux procfs with its compatibility module
+// And all compatibility stuff is standard mounted on this 
+#define PROCPREFIX "/compat/linux"
+
+/* Make sure that ENODATA is defined in the correct way */
+#ifndef ENODATA
+#define        ENODATA ENOATTR
+#else
+#if (ENODATA == 9919)
+// #warning ENODATA already defined to be 9919, redefining to fix
+// Silencing this warning because it fires at all files where compat.h
+// is included after boost files.
+//
+// This value stems from the definition in the boost library
+// And when this case occurs it is due to the fact that boost files
+// are included before this file. Redefinition might not help in this
+// case since already parsed code has evaluated to the wrong value.
+// This would warrrant for d definition that would actually be evaluated
+// at the location of usage and report a possible confict.
+// This is left up to a future improvement
+#elif (ENODATA != 87)
+#warning ENODATA already defined to a value different from 87 (ENOATRR), refining to fix
+#endif
+#undef ENODATA
+#define ENODATA ENOATTR
+#endif
+#ifndef MSG_MORE
+#define        MSG_MORE 0
+#endif
+
+#ifndef O_DSYNC
+#define O_DSYNC O_SYNC
+#endif
+
+// Fix clock accuracy
+#if !defined(CLOCK_MONOTONIC_COARSE)
+#if defined(CLOCK_MONOTONIC_FAST)
+#define CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC_FAST
+#else
+#define CLOCK_MONOTONIC_COARSE CLOCK_MONOTONIC
+#endif
+#endif
+#if !defined(CLOCK_REALTIME_COARSE)
+#if defined(CLOCK_REALTIME_FAST)
+#define CLOCK_REALTIME_COARSE CLOCK_REALTIME_FAST
+#else
+#define CLOCK_REALTIME_COARSE CLOCK_REALTIME
+#endif
+#endif
+
+/* And include the extra required include file */
+#include <pthread_np.h>
+
+#endif /* !__FreeBSD__ */
+
+#if defined(__APPLE__) || defined(__FreeBSD__)
+/* get PATH_MAX */
+#include <limits.h>
+
+#ifndef EREMOTEIO
+#define EREMOTEIO 121
+#endif
+
+#ifndef HOST_NAME_MAX
+#ifdef MAXHOSTNAMELEN 
+#define HOST_NAME_MAX MAXHOSTNAMELEN 
+#else
+#define HOST_NAME_MAX 255
+#endif
+#endif
+
+#endif /* __APPLE__ */
+
+/* O_LARGEFILE is not defined/required on OSX/FreeBSD */
+#ifndef O_LARGEFILE
+#define O_LARGEFILE 0
+#endif
+
+/* Could be relevant for other platforms */
+#ifndef ERESTART
+#define ERESTART EINTR
+#endif
+
+#ifndef TEMP_FAILURE_RETRY
+#define TEMP_FAILURE_RETRY(expression) ({     \
+  __typeof(expression) __result;              \
+  do {                                        \
+    __result = (expression);                  \
+  } while (__result == -1 && errno == EINTR); \
+  __result; })
+#endif
+
+#ifdef __cplusplus
+# define VOID_TEMP_FAILURE_RETRY(expression) \
+   static_cast<void>(TEMP_FAILURE_RETRY(expression))
+#else
+# define VOID_TEMP_FAILURE_RETRY(expression) \
+   do { (void)TEMP_FAILURE_RETRY(expression); } while (0)
+#endif
+
+#if defined(__FreeBSD__) || defined(__APPLE__)
+#define lseek64(fd, offset, whence) lseek(fd, offset, whence)
+#endif
+
+#if defined(__sun) || defined(_AIX)
+#define LOG_AUTHPRIV    (10<<3)
+#define LOG_FTP         (11<<3)
+#define __STRING(x)     "x"
+#define IFTODT(mode)   (((mode) & 0170000) >> 12)
+#endif
+
+#if defined(_AIX)
+#define MSG_DONTWAIT MSG_NONBLOCK
+#endif
+
+#if defined(HAVE_PTHREAD_SETNAME_NP)
+  #if defined(__APPLE__)
+    #define ceph_pthread_setname(thread, name) ({ \
+      int __result = 0;                         \
+      if (thread == pthread_self())             \
+        __result = pthread_setname_np(name);    \
+      __result; })
+  #else
+    #define ceph_pthread_setname pthread_setname_np
+  #endif
+#elif defined(HAVE_PTHREAD_SET_NAME_NP)
+  /* Fix a small name diff */
+  #define ceph_pthread_setname pthread_set_name_np
+#else
+  /* compiler warning free success noop */
+  #define ceph_pthread_setname(thread, name) ({ \
+    int __i = 0;                              \
+    __i; })
+#endif
+
+#if defined(HAVE_PTHREAD_GETNAME_NP)
+  #define ceph_pthread_getname pthread_getname_np
+#else
+  /* compiler warning free success noop */
+  #define ceph_pthread_getname(thread, name, len) ({ \
+    if (name != NULL)                              \
+      *name = '\0';                                \
+    0; })
+#endif
+
+#endif /* !CEPH_COMPAT_H */