datapath-windows: Add WMI Script that updates Hyper-V friendly port names.

[cascardo/ovs.git] / lib / util.h

diff --git a/lib/util.h b/lib/util.h
index aff17a5..7da7aa8 100644 (file)
--- a/lib/util.h
+++ b/lib/util.h
@@ -74,7 +74,7 @@
     if (!OVS_LIKELY(CONDITION)) {                                       \
         ovs_assert_failure(SOURCE_LOCATOR, __func__, #CONDITION);       \
     }
-void ovs_assert_failure(const char *, const char *, const char *) NO_RETURN;
+NO_RETURN void ovs_assert_failure(const char *, const char *, const char *);
 
 /* Casts 'pointer' to 'type' and issues a compiler warning if the cast changes
  * anything other than an outermost "const" or "volatile" qualifier.
@@ -86,7 +86,7 @@ void ovs_assert_failure(const char *, const char *, const char *) NO_RETURN;
     ((void) sizeof ((int) ((POINTER) == (TYPE) (POINTER))),     \
      (TYPE) (POINTER))
 
-extern const char *program_name;
+extern char *program_name;
 
 #define __ARRAY_SIZE_NOCHECK(ARRAY) (sizeof(ARRAY) / sizeof((ARRAY)[0]))
 #ifdef __GNUC__
@@ -151,6 +151,17 @@ is_pow2(uintmax_t x)
 #define CACHE_LINE_SIZE 64
 BUILD_ASSERT_DECL(IS_POW2(CACHE_LINE_SIZE));
 
+static inline void
+ovs_prefetch_range(const void *start, size_t size)
+{
+    const char *addr = (const char *)start;
+    size_t ofs;
+
+    for (ofs = 0; ofs < size; ofs += CACHE_LINE_SIZE) {
+        OVS_PREFETCH(addr + ofs);
+    }
+}
+
 #ifndef MIN
 #define MIN(X, Y) ((X) < (Y) ? (X) : (Y))
 #endif
@@ -217,6 +228,13 @@ BUILD_ASSERT_DECL(IS_POW2(CACHE_LINE_SIZE));
 #define ASSIGN_CONTAINER(OBJECT, POINTER, MEMBER) \
     ((OBJECT) = OBJECT_CONTAINING(POINTER, OBJECT, MEMBER), (void) 0)
 
+/* As explained in the comment above OBJECT_OFFSETOF(), non-GNUC compilers
+ * like MSVC will complain about un-initialized variables if OBJECT
+ * hasn't already been initialized. To prevent such warnings, INIT_CONTAINER()
+ * can be used as a wrapper around ASSIGN_CONTAINER. */
+#define INIT_CONTAINER(OBJECT, POINTER, MEMBER) \
+    ((OBJECT) = NULL, ASSIGN_CONTAINER(OBJECT, POINTER, MEMBER))
+
 /* Given ATTR, and TYPE, cast the ATTR to TYPE by first casting ATTR to
  * (void *). This is to suppress the alignment warning issued by clang. */
 #define ALIGNED_CAST(TYPE, ATTR) ((TYPE) (void *) (ATTR))
@@ -238,6 +256,10 @@ BUILD_ASSERT_DECL(IS_POW2(CACHE_LINE_SIZE));
 #define PRIXSIZE "zX"
 #endif
 
+#ifndef _WIN32
+typedef uint32_t HANDLE;
+#endif
+
 #ifdef  __cplusplus
 extern "C" {
 #endif
@@ -253,7 +275,7 @@ void set_subprogram_name(const char *format, ...) PRINTF_FORMAT(1, 2);
 const char *get_program_version(void);
 void ovs_print_version(uint8_t min_ofp, uint8_t max_ofp);
 
-void out_of_memory(void) NO_RETURN;
+NO_RETURN void out_of_memory(void);
 void *xmalloc(size_t) MALLOC_LIKE;
 void *xcalloc(size_t, size_t) MALLOC_LIKE;
 void *xzalloc(size_t) MALLOC_LIKE;
@@ -272,14 +294,14 @@ void free_cacheline(void *);
 void ovs_strlcpy(char *dst, const char *src, size_t size);
 void ovs_strzcpy(char *dst, const char *src, size_t size);
 
-void ovs_abort(int err_no, const char *format, ...)
-    PRINTF_FORMAT(2, 3) NO_RETURN;
-void ovs_abort_valist(int err_no, const char *format, va_list)
-    PRINTF_FORMAT(2, 0) NO_RETURN;
-void ovs_fatal(int err_no, const char *format, ...)
-    PRINTF_FORMAT(2, 3) NO_RETURN;
-void ovs_fatal_valist(int err_no, const char *format, va_list)
-    PRINTF_FORMAT(2, 0) NO_RETURN;
+NO_RETURN void ovs_abort(int err_no, const char *format, ...)
+    PRINTF_FORMAT(2, 3);
+NO_RETURN void ovs_abort_valist(int err_no, const char *format, va_list)
+    PRINTF_FORMAT(2, 0);
+NO_RETURN void ovs_fatal(int err_no, const char *format, ...)
+    PRINTF_FORMAT(2, 3);
+NO_RETURN void ovs_fatal_valist(int err_no, const char *format, va_list)
+    PRINTF_FORMAT(2, 0);
 void ovs_error(int err_no, const char *format, ...) PRINTF_FORMAT(2, 3);
 void ovs_error_valist(int err_no, const char *format, va_list)
     PRINTF_FORMAT(2, 0);
@@ -290,24 +312,7 @@ void ovs_hex_dump(FILE *, const void *, size_t, uintptr_t offset, bool ascii);
 bool str_to_int(const char *, int base, int *);
 bool str_to_long(const char *, int base, long *);
 bool str_to_llong(const char *, int base, long long *);
-
-static inline bool
-str_to_uint(const char *s, int base, unsigned int *u)
-{
-    return str_to_int(s, base, (int *) u);
-}
-
-static inline bool
-str_to_ulong(const char *s, int base, unsigned long *ul)
-{
-    return str_to_long(s, base, (long *) ul);
-}
-
-static inline bool
-str_to_ullong(const char *s, int base, unsigned long long *ull)
-{
-    return str_to_llong(s, base, (long long *) ull);
-}
+bool str_to_uint(const char *, int base, unsigned int *);
 
 bool ovs_scan(const char *s, const char *format, ...) SCANF_FORMAT(2, 3);
 
@@ -319,8 +324,10 @@ unsigned int hexits_value(const char *s, size_t n, bool *ok);
 const char *english_list_delimiter(size_t index, size_t total);
 
 char *get_cwd(void);
+#ifndef _WIN32
 char *dir_name(const char *file_name);
 char *base_name(const char *file_name);
+#endif
 char *abs_file_name(const char *dir, const char *file_name);
 
 char *follow_symlinks(const char *filename);
@@ -485,8 +492,8 @@ leftmost_1bit_idx(uint32_t x)
     return x ? log_2_floor(x) : 32;
 }
 \f
-bool is_all_zeros(const uint8_t *, size_t);
-bool is_all_ones(const uint8_t *, size_t);
+bool is_all_zeros(const void *, size_t);
+bool is_all_ones(const void *, size_t);
 void bitwise_copy(const void *src, unsigned int src_len, unsigned int src_ofs,
                   void *dst, unsigned int dst_len, unsigned int dst_ofs,
                   unsigned int n_bits);
@@ -503,6 +510,7 @@ uint64_t bitwise_get(const void *src, unsigned int src_len,
                      unsigned int src_ofs, unsigned int n_bits);
 
 void xsleep(unsigned int seconds);
+
 #ifdef _WIN32
 \f
 char *ovs_format_message(int error);