throttle: Add throttle group infrastructure

[qemu.git] / include / qemu-common.h

diff --git a/include/qemu-common.h b/include/qemu-common.h
index dcb57ab4b9ebd16bdf01c1f1598bcbec3dcbd27f..d52d09cfb85356383c1f7b329c6ec973c8af7dcd 100644 (file)
--- a/include/qemu-common.h
+++ b/include/qemu-common.h
@@ -186,10 +186,19 @@ int64_t strtosz(const char *nptr, char **end);
 int64_t strtosz_suffix(const char *nptr, char **end, const char default_suffix);
 int64_t strtosz_suffix_unit(const char *nptr, char **end,
                             const char default_suffix, int64_t unit);
+#define K_BYTE     (1ULL << 10)
+#define M_BYTE     (1ULL << 20)
+#define G_BYTE     (1ULL << 30)
+#define T_BYTE     (1ULL << 40)
+#define P_BYTE     (1ULL << 50)
+#define E_BYTE     (1ULL << 60)
 
 /* used to print char* safely */
 #define STR_OR_NULL(str) ((str) ? (str) : "null")
 
+/* id.c */
+bool id_wellformed(const char *id);
+
 /* path.c */
 void init_paths(const char *prefix);
 const char *path(const char *pathname);
@@ -214,10 +223,6 @@ void *qemu_oom_check(void *ptr);
 
 ssize_t qemu_write_full(int fd, const void *buf, size_t count)
     QEMU_WARN_UNUSED_RESULT;
-ssize_t qemu_send_full(int fd, const void *buf, size_t count, int flags)
-    QEMU_WARN_UNUSED_RESULT;
-ssize_t qemu_recv_full(int fd, void *buf, size_t count, int flags)
-    QEMU_WARN_UNUSED_RESULT;
 
 #ifndef _WIN32
 int qemu_pipe(int pipefd[2]);
@@ -354,7 +359,6 @@ char *qemu_find_file(int type, const char *name);
 void os_setup_early_signal_handling(void);
 char *os_find_datadir(void);
 void os_parse_cmd_args(int index, const char *optarg);
-void os_pidfile_error(void);
 
 /* Convert a byte between binary and BCD.  */
 static inline uint8_t to_bcd(uint8_t val)
@@ -368,6 +372,12 @@ static inline uint8_t from_bcd(uint8_t val)
 }
 
 /* compute with 96 bit intermediate result: (a*b)/c */
+#ifdef CONFIG_INT128
+static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
+{
+    return (__int128_t)a * b / c;
+}
+#else
 static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
 {
     union {
@@ -390,6 +400,7 @@ static inline uint64_t muldiv64(uint64_t a, uint32_t b, uint32_t c)
     res.l.low = (((rh % c) << 32) + (rl & 0xffffffff)) / c;
     return res.ll;
 }
+#endif
 
 /* Round number down to multiple */
 #define QEMU_ALIGN_DOWN(n, m) ((n) / (m) * (m))
@@ -409,6 +420,9 @@ static inline bool is_power_of_2(uint64_t value)
 /* round down to the nearest power of 2*/
 int64_t pow2floor(int64_t value);
 
+/* round up to the nearest power of 2 (0 if overflow) */
+uint64_t pow2ceil(uint64_t value);
+
 #include "qemu/module.h"
 
 /*