mirror of /home/gitosis/repositories/libev.git
ecb.h, ecb_cold
parent
0c84163e57
commit
da3de9041d
4
Changes
4
Changes
|
@ -2,8 +2,6 @@ Revision history for libev, a high-performance and full-featured event loop.
|
|||
|
||||
TODO: ev_loop_prefork hint?
|
||||
TODO: ev_loop_wakeup
|
||||
TODO: confusion about threads ongiong
|
||||
TODO: not_blocked flag.
|
||||
|
||||
- correct backend_fudge for most backends, and implement a windows
|
||||
specific workaround to avoid looping because we call both
|
||||
|
@ -16,6 +14,8 @@ TODO: not_blocked flag.
|
|||
- do not rely on -lm anymore: use it when available but use our
|
||||
own floor () if it is missing. This should make it easier to embed,
|
||||
as no external libraries are required.
|
||||
- strategically import macros from libecb and mark rarely-used functions
|
||||
as cache-chold (saving almost 2k code size on typical amd64 setups).
|
||||
|
||||
4.04 Wed Feb 16 09:01:51 CET 2011
|
||||
- fix two problems in the native win32 backend, where reuse of fd's
|
||||
|
|
144
ev.c
144
ev.c
|
@ -466,23 +466,77 @@ struct signalfd_siginfo
|
|||
#define EV_TV_SET(tv,t) do { tv.tv_sec = (long)t; tv.tv_usec = (long)((t - tv.tv_sec) * 1e6); } while (0)
|
||||
#define EV_TS_SET(ts,t) do { ts.tv_sec = (long)t; ts.tv_nsec = (long)((t - ts.tv_sec) * 1e9); } while (0)
|
||||
|
||||
#if __GNUC__ >= 4
|
||||
# define expect(expr,value) __builtin_expect ((expr),(value))
|
||||
# define noinline __attribute__ ((noinline))
|
||||
#else
|
||||
# define expect(expr,value) (expr)
|
||||
# define noinline
|
||||
# if __STDC_VERSION__ < 199901L && __GNUC__ < 2
|
||||
# define inline
|
||||
# endif
|
||||
/* the following are taken from libecb */
|
||||
/* ecb.h start */
|
||||
|
||||
/* many compilers define _GNUC_ to some versions but then only implement
|
||||
* what their idiot authors think are the "more important" extensions,
|
||||
* causing enourmous grief in return for some better fake benchmark numbers.
|
||||
* or so.
|
||||
* we try to detect these and simply assume they are not gcc - if they have
|
||||
* an issue with that they should have done it right in the first place.
|
||||
*/
|
||||
#ifndef ECB_GCC_VERSION
|
||||
#if !defined(__GNUC_MINOR__) || defined(__INTEL_COMPILER) || defined(__SUNPRO_C) || defined(__SUNPRO_CC) || defined(__llvm__) || defined(__clang__)
|
||||
#define ECB_GCC_VERSION(major,minor) 0
|
||||
#else
|
||||
#define ECB_GCC_VERSION(major,minor) (__GNUC__ > (major) || (__GNUC__ == (major) && __GNUC_MINOR__ >= (minor)))
|
||||
#endif
|
||||
#endif
|
||||
|
||||
#define expect_false(expr) expect ((expr) != 0, 0)
|
||||
#define expect_true(expr) expect ((expr) != 0, 1)
|
||||
#define inline_size static inline
|
||||
#if __cplusplus
|
||||
#define ecb_inline static inline
|
||||
#elif ECB_GCC_VERSION(2,5)
|
||||
#define ecb_inline static __inline__
|
||||
#elif ECB_C99
|
||||
#define ecb_inline static inline
|
||||
#else
|
||||
#define ecb_inline static
|
||||
#endif
|
||||
|
||||
#if ECB_GCC_VERSION(3,1)
|
||||
#define ecb_attribute(attrlist) __attribute__(attrlist)
|
||||
#define ecb_is_constant(expr) __builtin_constant_p (expr)
|
||||
#define ecb_expect(expr,value) __builtin_expect ((expr),(value))
|
||||
#define ecb_prefetch(addr,rw,locality) __builtin_prefetch (addr, rw, locality)
|
||||
#else
|
||||
#define ecb_attribute(attrlist)
|
||||
#define ecb_is_constant(expr) 0
|
||||
#define ecb_expect(expr,value) (expr)
|
||||
#define ecb_prefetch(addr,rw,locality)
|
||||
#endif
|
||||
|
||||
#define ecb_noinline ecb_attribute ((__noinline__))
|
||||
#define ecb_noreturn ecb_attribute ((__noreturn__))
|
||||
#define ecb_unused ecb_attribute ((__unused__))
|
||||
#define ecb_const ecb_attribute ((__const__))
|
||||
#define ecb_pure ecb_attribute ((__pure__))
|
||||
|
||||
#if ECB_GCC_VERSION(4,3)
|
||||
#define ecb_artificial ecb_attribute ((__artificial__))
|
||||
#define ecb_hot ecb_attribute ((__hot__))
|
||||
#define ecb_cold ecb_attribute ((__cold__))
|
||||
#else
|
||||
#define ecb_artificial
|
||||
#define ecb_hot
|
||||
#define ecb_cold
|
||||
#endif
|
||||
|
||||
/* put around conditional expressions if you are very sure that the */
|
||||
/* expression is mostly true or mostly false. note that these return */
|
||||
/* booleans, not the expression. */
|
||||
#define ecb_expect_false(expr) ecb_expect (!!(expr), 0)
|
||||
#define ecb_expect_true(expr) ecb_expect (!!(expr), 1)
|
||||
/* ecb.h end */
|
||||
|
||||
#define expect_false(cond) ecb_expect_false (cond)
|
||||
#define expect_true(cond) ecb_expect_true (cond)
|
||||
#define noinline ecb_noinline
|
||||
|
||||
#define inline_size ecb_inline
|
||||
|
||||
#if EV_FEATURE_CODE
|
||||
# define inline_speed static inline
|
||||
# define inline_speed ecb_inline
|
||||
#else
|
||||
# define inline_speed static noinline
|
||||
#endif
|
||||
|
@ -583,7 +637,7 @@ ev_floor (ev_tstamp v)
|
|||
# include <sys/utsname.h>
|
||||
#endif
|
||||
|
||||
static unsigned int noinline
|
||||
static unsigned int noinline ecb_cold
|
||||
ev_linux_version (void)
|
||||
{
|
||||
#ifdef __linux
|
||||
|
@ -622,7 +676,7 @@ ev_linux_version (void)
|
|||
/*****************************************************************************/
|
||||
|
||||
#if EV_AVOID_STDIO
|
||||
static void noinline
|
||||
static void noinline ecb_cold
|
||||
ev_printerr (const char *msg)
|
||||
{
|
||||
write (STDERR_FILENO, msg, strlen (msg));
|
||||
|
@ -631,13 +685,13 @@ ev_printerr (const char *msg)
|
|||
|
||||
static void (*syserr_cb)(const char *msg);
|
||||
|
||||
void
|
||||
void ecb_cold
|
||||
ev_set_syserr_cb (void (*cb)(const char *msg))
|
||||
{
|
||||
syserr_cb = cb;
|
||||
}
|
||||
|
||||
static void noinline
|
||||
static void noinline ecb_cold
|
||||
ev_syserr (const char *msg)
|
||||
{
|
||||
if (!msg)
|
||||
|
@ -680,7 +734,7 @@ ev_realloc_emul (void *ptr, long size)
|
|||
|
||||
static void *(*alloc)(void *ptr, long size) = ev_realloc_emul;
|
||||
|
||||
void
|
||||
void ecb_cold
|
||||
ev_set_allocator (void *(*cb)(void *ptr, long size))
|
||||
{
|
||||
alloc = cb;
|
||||
|
@ -899,7 +953,7 @@ array_nextsize (int elem, int cur, int cnt)
|
|||
return ncur;
|
||||
}
|
||||
|
||||
static noinline void *
|
||||
static void * noinline ecb_cold
|
||||
array_realloc (int elem, void *base, int *cur, int cnt)
|
||||
{
|
||||
*cur = array_nextsize (elem, *cur, cnt);
|
||||
|
@ -1092,7 +1146,7 @@ fd_change (EV_P_ int fd, int flags)
|
|||
}
|
||||
|
||||
/* the given fd is invalid/unusable, so make sure it doesn't hurt us anymore */
|
||||
inline_speed void
|
||||
inline_speed void ecb_cold
|
||||
fd_kill (EV_P_ int fd)
|
||||
{
|
||||
ev_io *w;
|
||||
|
@ -1105,7 +1159,7 @@ fd_kill (EV_P_ int fd)
|
|||
}
|
||||
|
||||
/* check whether the given fd is actually valid, for error recovery */
|
||||
inline_size int
|
||||
inline_size int ecb_cold
|
||||
fd_valid (int fd)
|
||||
{
|
||||
#ifdef _WIN32
|
||||
|
@ -1116,7 +1170,7 @@ fd_valid (int fd)
|
|||
}
|
||||
|
||||
/* called on EBADF to verify fds */
|
||||
static void noinline
|
||||
static void noinline ecb_cold
|
||||
fd_ebadf (EV_P)
|
||||
{
|
||||
int fd;
|
||||
|
@ -1128,7 +1182,7 @@ fd_ebadf (EV_P)
|
|||
}
|
||||
|
||||
/* called on ENOMEM in select/poll to kill some fds and retry */
|
||||
static void noinline
|
||||
static void noinline ecb_cold
|
||||
fd_enomem (EV_P)
|
||||
{
|
||||
int fd;
|
||||
|
@ -1333,7 +1387,7 @@ static ANSIG signals [EV_NSIG - 1];
|
|||
|
||||
#if EV_SIGNAL_ENABLE || EV_ASYNC_ENABLE
|
||||
|
||||
static void noinline
|
||||
static void noinline ecb_cold
|
||||
evpipe_init (EV_P)
|
||||
{
|
||||
if (!ev_is_active (&pipe_w))
|
||||
|
@ -1609,20 +1663,20 @@ childcb (EV_P_ ev_signal *sw, int revents)
|
|||
# include "ev_select.c"
|
||||
#endif
|
||||
|
||||
int
|
||||
int ecb_cold
|
||||
ev_version_major (void)
|
||||
{
|
||||
return EV_VERSION_MAJOR;
|
||||
}
|
||||
|
||||
int
|
||||
int ecb_cold
|
||||
ev_version_minor (void)
|
||||
{
|
||||
return EV_VERSION_MINOR;
|
||||
}
|
||||
|
||||
/* return true if we are running with elevated privileges and should ignore env variables */
|
||||
int inline_size
|
||||
int inline_size ecb_cold
|
||||
enable_secure (void)
|
||||
{
|
||||
#ifdef _WIN32
|
||||
|
@ -1633,7 +1687,7 @@ enable_secure (void)
|
|||
#endif
|
||||
}
|
||||
|
||||
unsigned int
|
||||
unsigned int ecb_cold
|
||||
ev_supported_backends (void)
|
||||
{
|
||||
unsigned int flags = 0;
|
||||
|
@ -1647,7 +1701,7 @@ ev_supported_backends (void)
|
|||
return flags;
|
||||
}
|
||||
|
||||
unsigned int
|
||||
unsigned int ecb_cold
|
||||
ev_recommended_backends (void)
|
||||
{
|
||||
unsigned int flags = ev_supported_backends ();
|
||||
|
@ -1669,7 +1723,7 @@ ev_recommended_backends (void)
|
|||
return flags;
|
||||
}
|
||||
|
||||
unsigned int
|
||||
unsigned int ecb_cold
|
||||
ev_embeddable_backends (void)
|
||||
{
|
||||
int flags = EVBACKEND_EPOLL | EVBACKEND_KQUEUE | EVBACKEND_PORT;
|
||||
|
@ -1724,12 +1778,14 @@ ev_userdata (EV_P)
|
|||
return userdata;
|
||||
}
|
||||
|
||||
void ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
|
||||
void
|
||||
ev_set_invoke_pending_cb (EV_P_ void (*invoke_pending_cb)(EV_P))
|
||||
{
|
||||
invoke_cb = invoke_pending_cb;
|
||||
}
|
||||
|
||||
void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
|
||||
void
|
||||
ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
|
||||
{
|
||||
release_cb = release;
|
||||
acquire_cb = acquire;
|
||||
|
@ -1737,7 +1793,7 @@ void ev_set_loop_release_cb (EV_P_ void (*release)(EV_P), void (*acquire)(EV_P))
|
|||
#endif
|
||||
|
||||
/* initialise a loop structure, must be zero-initialised */
|
||||
static void noinline
|
||||
static void noinline ecb_cold
|
||||
loop_init (EV_P_ unsigned int flags)
|
||||
{
|
||||
if (!backend)
|
||||
|
@ -1832,7 +1888,7 @@ loop_init (EV_P_ unsigned int flags)
|
|||
}
|
||||
|
||||
/* free up a loop structure */
|
||||
void
|
||||
void ecb_cold
|
||||
ev_loop_destroy (EV_P)
|
||||
{
|
||||
int i;
|
||||
|
@ -2000,7 +2056,7 @@ loop_fork (EV_P)
|
|||
|
||||
#if EV_MULTIPLICITY
|
||||
|
||||
struct ev_loop *
|
||||
struct ev_loop * ecb_cold
|
||||
ev_loop_new (unsigned int flags)
|
||||
{
|
||||
EV_P = (struct ev_loop *)ev_malloc (sizeof (struct ev_loop));
|
||||
|
@ -2018,7 +2074,7 @@ ev_loop_new (unsigned int flags)
|
|||
#endif /* multiplicity */
|
||||
|
||||
#if EV_VERIFY
|
||||
static void noinline
|
||||
static void noinline ecb_cold
|
||||
verify_watcher (EV_P_ W w)
|
||||
{
|
||||
assert (("libev: watcher has invalid priority", ABSPRI (w) >= 0 && ABSPRI (w) < NUMPRI));
|
||||
|
@ -2027,7 +2083,7 @@ verify_watcher (EV_P_ W w)
|
|||
assert (("libev: pending watcher not on pending queue", pendings [ABSPRI (w)][w->pending - 1].w == w));
|
||||
}
|
||||
|
||||
static void noinline
|
||||
static void noinline ecb_cold
|
||||
verify_heap (EV_P_ ANHE *heap, int N)
|
||||
{
|
||||
int i;
|
||||
|
@ -2042,7 +2098,7 @@ verify_heap (EV_P_ ANHE *heap, int N)
|
|||
}
|
||||
}
|
||||
|
||||
static void noinline
|
||||
static void noinline ecb_cold
|
||||
array_verify (EV_P_ W *ws, int cnt)
|
||||
{
|
||||
while (cnt--)
|
||||
|
@ -2054,7 +2110,7 @@ array_verify (EV_P_ W *ws, int cnt)
|
|||
#endif
|
||||
|
||||
#if EV_FEATURE_API
|
||||
void
|
||||
void ecb_cold
|
||||
ev_verify (EV_P)
|
||||
{
|
||||
#if EV_VERIFY
|
||||
|
@ -2130,7 +2186,7 @@ ev_verify (EV_P)
|
|||
#endif
|
||||
|
||||
#if EV_MULTIPLICITY
|
||||
struct ev_loop *
|
||||
struct ev_loop * ecb_cold
|
||||
#else
|
||||
int
|
||||
#endif
|
||||
|
@ -2339,7 +2395,7 @@ periodics_reify (EV_P)
|
|||
|
||||
/* simply recalculate all periodics */
|
||||
/* TODO: maybe ensure that at least one event happens when jumping forward? */
|
||||
static void noinline
|
||||
static void noinline ecb_cold
|
||||
periodics_reschedule (EV_P)
|
||||
{
|
||||
int i;
|
||||
|
@ -2362,7 +2418,7 @@ periodics_reschedule (EV_P)
|
|||
#endif
|
||||
|
||||
/* adjust all timers by a given offset */
|
||||
static void noinline
|
||||
static void noinline ecb_cold
|
||||
timers_reschedule (EV_P_ ev_tstamp adjust)
|
||||
{
|
||||
int i;
|
||||
|
@ -3238,7 +3294,7 @@ infy_cb (EV_P_ ev_io *w, int revents)
|
|||
}
|
||||
}
|
||||
|
||||
inline_size void
|
||||
inline_size void ecb_cold
|
||||
ev_check_2625 (EV_P)
|
||||
{
|
||||
/* kernels < 2.6.25 are borked
|
||||
|
@ -3873,7 +3929,7 @@ ev_once (EV_P_ int fd, int events, ev_tstamp timeout, void (*cb)(int revents, vo
|
|||
/*****************************************************************************/
|
||||
|
||||
#if EV_WALK_ENABLE
|
||||
void
|
||||
void ecb_cold
|
||||
ev_walk (EV_P_ int types, void (*cb)(EV_P_ int type, void *w))
|
||||
{
|
||||
int i, j;
|
||||
|
|
Loading…
Reference in New Issue