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authorRickard Green <[email protected]>2011-11-13 21:41:11 +0100
committerRickard Green <[email protected]>2011-11-13 21:41:11 +0100
commitc12befbdc957f7f166598c6d5143ce27a0d10fa8 (patch)
treebb2077e2d28f1432ea3dc9f2da971d0ca5634e94 /erts/emulator/sys/unix/sys.c
parent4ed347dcaeeb8e8844be532414a11817da3920f5 (diff)
parenta67e91e658bdbba24fcc3c79b06fdf10ff830bc9 (diff)
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Merge branch 'rickard/alloc-opt/OTP-7775'
* rickard/alloc-opt/OTP-7775: Optimize memory allocation Conflicts: erts/aclocal.m4 erts/emulator/hipe/hipe_bif_list.m4 erts/preloaded/ebin/erl_prim_loader.beam erts/preloaded/ebin/erlang.beam erts/preloaded/ebin/init.beam erts/preloaded/ebin/otp_ring0.beam erts/preloaded/ebin/prim_file.beam erts/preloaded/ebin/prim_inet.beam erts/preloaded/ebin/prim_zip.beam erts/preloaded/ebin/zlib.beam
Diffstat (limited to 'erts/emulator/sys/unix/sys.c')
-rw-r--r--erts/emulator/sys/unix/sys.c24
1 files changed, 20 insertions, 4 deletions
diff --git a/erts/emulator/sys/unix/sys.c b/erts/emulator/sys/unix/sys.c
index 20bfaad9aa..d9b2ec8d2d 100644
--- a/erts/emulator/sys/unix/sys.c
+++ b/erts/emulator/sys/unix/sys.c
@@ -263,6 +263,7 @@ int erts_use_kernel_poll = 0;
struct {
int (*select)(ErlDrvPort, ErlDrvEvent, int, int);
int (*event)(ErlDrvPort, ErlDrvEvent, ErlDrvEventData);
+ void (*check_io_as_interrupt)(void);
void (*check_io_interrupt)(int);
void (*check_io_interrupt_tmd)(int, long);
void (*check_io)(int);
@@ -302,6 +303,9 @@ init_check_io(void)
if (erts_use_kernel_poll) {
io_func.select = driver_select_kp;
io_func.event = driver_event_kp;
+#ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
+ io_func.check_io_as_interrupt = erts_check_io_async_sig_interrupt_kp;
+#endif
io_func.check_io_interrupt = erts_check_io_interrupt_kp;
io_func.check_io_interrupt_tmd = erts_check_io_interrupt_timed_kp;
io_func.check_io = erts_check_io_kp;
@@ -314,6 +318,9 @@ init_check_io(void)
else {
io_func.select = driver_select_nkp;
io_func.event = driver_event_nkp;
+#ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
+ io_func.check_io_as_interrupt = erts_check_io_async_sig_interrupt_nkp;
+#endif
io_func.check_io_interrupt = erts_check_io_interrupt_nkp;
io_func.check_io_interrupt_tmd = erts_check_io_interrupt_timed_nkp;
io_func.check_io = erts_check_io_nkp;
@@ -325,6 +332,11 @@ init_check_io(void)
}
}
+#ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
+#define ERTS_CHK_IO_AS_INTR() (*io_func.check_io_as_interrupt)()
+#else
+#define ERTS_CHK_IO_AS_INTR() (*io_func.check_io_interrupt)(1)
+#endif
#define ERTS_CHK_IO_INTR (*io_func.check_io_interrupt)
#define ERTS_CHK_IO_INTR_TMD (*io_func.check_io_interrupt_tmd)
#define ERTS_CHK_IO (*io_func.check_io)
@@ -339,6 +351,11 @@ init_check_io(void)
max_files = erts_check_io_max_files();
}
+#ifdef ERTS_POLL_NEED_ASYNC_INTERRUPT_SUPPORT
+#define ERTS_CHK_IO_AS_INTR() erts_check_io_async_sig_interrupt()
+#else
+#define ERTS_CHK_IO_AS_INTR() erts_check_io_interrupt(1)
+#endif
#define ERTS_CHK_IO_INTR erts_check_io_interrupt
#define ERTS_CHK_IO_INTR_TMD erts_check_io_interrupt_timed
#define ERTS_CHK_IO erts_check_io
@@ -346,13 +363,13 @@ init_check_io(void)
#endif
-#ifdef ERTS_SMP
void
erts_sys_schedule_interrupt(int set)
{
ERTS_CHK_IO_INTR(set);
}
+#ifdef ERTS_SMP
void
erts_sys_schedule_interrupt_timed(int set, long msec)
{
@@ -731,7 +748,7 @@ break_requested(void)
erl_exit(ERTS_INTR_EXIT, "");
ERTS_SET_BREAK_REQUESTED;
- ERTS_CHK_IO_INTR(1); /* Make sure we don't sleep in poll */
+ ERTS_CHK_IO_AS_INTR(); /* Make sure we don't sleep in poll */
}
/* set up signal handlers for break and quit */
@@ -1140,7 +1157,7 @@ static RETSIGTYPE onchld(int signum)
smp_sig_notify('C');
#else
children_died = 1;
- ERTS_CHK_IO_INTR(1); /* Make sure we don't sleep in poll */
+ ERTS_CHK_IO_AS_INTR(); /* Make sure we don't sleep in poll */
#endif
}
@@ -2848,7 +2865,6 @@ erl_sys_schedule(int runnable)
ERTS_CHK_IO(!runnable);
ERTS_SMP_LC_ASSERT(!ERTS_LC_IS_BLOCKING);
#else
- ERTS_CHK_IO_INTR(0);
if (runnable) {
ERTS_CHK_IO(0); /* Poll for I/O */
check_async_ready(); /* Check async completions */