Add generic random helpers

[fio.git] / os / os.h

diff --git a/os/os.h b/os/os.h
index 42cd63d020aedf28e91114ef171697e4f393b6e1..9a48c603534d9629da59b0f533a5b20919d0150f 100644 (file)
--- a/os/os.h
+++ b/os/os.h
@@ -7,6 +7,8 @@
 #include "os-freebsd.h"
 #elif defined(__sun__)
 #include "os-solaris.h"
+#elif defined(__APPLE__)
+#include "os-mac.h"
 #else
 #error "unsupported os"
 #endif
@@ -24,6 +26,10 @@
 #include <scsi/sg.h>
 #endif
 
+#ifndef FIO_HAVE_STRSEP
+#include "../lib/strsep.h"
+#endif
+
 #ifndef FIO_HAVE_FADVISE
 #define fadvise(fd, off, len, advice)  (0)
 
@@ -35,8 +41,10 @@
 #endif /* FIO_HAVE_FADVISE */
 
 #ifndef FIO_HAVE_CPU_AFFINITY
-#define fio_setaffinity(td)            (0)
-#define fio_getaffinity(pid, mask)     (0)
+#define fio_setaffinity(pid, mask)     (0)
+#define fio_getaffinity(pid, mask)     do { } while (0)
+#define fio_cpu_clear(mask, cpu)       do { } while (0)
+#define fio_cpuset_exit(mask)          (-1)
 #endif
 
 #ifndef FIO_HAVE_IOPRIO
@@ -60,6 +68,14 @@
 #endif
 #endif
 
+#ifndef FIO_O_NOATIME
+#define FIO_O_NOATIME                  0
+#endif
+
+#ifndef OS_RAND_MAX
+#define OS_RAND_MAX                    RAND_MAX
+#endif
+
 #ifndef FIO_HAVE_RAWBIND
 #define fio_lookup_raw(dev, majdev, mindev)    1
 #endif
@@ -69,10 +85,60 @@ static inline int is_blktrace(const char *fname)
 {
        return 0;
 }
+struct thread_data;
 static inline int load_blktrace(struct thread_data *td, const char *fname)
 {
        return 1;
 }
 #endif
 
+#define FIO_DEF_CL_SIZE                128
+
+static inline int os_cache_line_size(void)
+{
+#ifdef FIO_HAVE_CL_SIZE
+       int ret = arch_cache_line_size();
+
+       if (ret <= 0)
+               return FIO_DEF_CL_SIZE;
+
+       return ret;
+#else
+       return FIO_DEF_CL_SIZE;
+#endif
+}
+
+#ifdef FIO_USE_GENERIC_BDEV_SIZE
+static inline int blockdev_size(int fd, unsigned long long *bytes)
+{
+       off_t end;
+
+       *bytes = 0;
+
+       end = lseek(fd, 0, SEEK_END);
+       if (end < 0)
+               return errno;
+
+       *bytes = end;
+       return 0;
+}
+#endif
+
+#ifdef FIO_USE_GENERIC_RAND
+typedef unsigned int os_random_state_t;
+
+static inline void os_random_seed(unsigned long seed, os_random_state_t *rs)
+{
+       srand(seed);
+}
+
+static inline long os_random_long(os_random_state_t *rs)
+{
+       long val;
+
+       val = rand_r(rs);
+       return val;
+}
+#endif
+
 #endif