delta/libatomic_ops.git/src/atomic_ops.c, branch draft-coveralls-linux

Hide AO_locks symbol

2016-10-24T21:53:20+00:00

* src/atomic_ops.c [!_MSC_VER && !__MINGW32__] (AO_locks): Define as
static.

Enable build using toolchain without pthreads

2013-05-26T08:08:18+00:00

* src/atomic_ops.c: Include pthread.h only if not AO_NO_PTHREADS (new
macro).
* src/atomic_ops.c (AO_pt_lock): Define only unless AO_NO_PTHREADS.
* tests/test_atomic.c (main): Skip test_atomic_pthreads if both
AO_NO_PTHREADS and AO_USE_PTHREAD_DEFS are defined (preventing test
link failure if AO_NO_PTHREADS passed via CFLAGS).

Remove duplicate AO_spin and AO_pause definition in atomic_ops_stack

2012-10-04T12:53:48+00:00

* src/atomic_ops.c (AO_REQUIRE_CAS): Undefine and include atomic_ops.h
unconditionally.
* src/atomic_ops.c (AO_USE_WIN32_PTHREADS): Define macro (and include
windows.h) if Win32 (non-POSIX) to have Sleep-based implementation of
AO_pause.
* src/atomic_ops.c (dummy, AO_spin, AO_pause): Define unconditionally
(to be always available for atomic_ops_stack).
* src/atomic_ops.c (dummy): Rename to spin_dummy.
* src/atomic_ops_stack.c (dummy, AO_spin, AO_pause): Remove definition
(for Win32); remove FIXME.
* src/atomic_ops_stack.c (AO_pause): Declare if
AO_USE_ALMOST_LOCK_FREE defined.

Fix AO_pause sleep delay for particular argument values (Win32)

2012-10-03T14:36:43+00:00

* src/atomic_ops.c (AO_pause): Fix millis value (passed to Win32
Sleep) for the case of 'n' argument in range between 12 and 21,
inclusive if AO_USE_WIN32_PTHREADS (sleep for 1 ms in this case).
* src/atomic_ops_stack.c (AO_pause): Evaluate 'msecs' value using the
same algorithm as in atomic_ops.c (Win32 only).

Optimize AO_spin manually to minimize compiler influence on its duration

2012-10-03T09:02:13+00:00

* src/atomic_ops.c (dummy, AO_spin): Use AO_t instead of deprecated
AO_T.
* src/atomic_ops_stack.c (AO_spin): Likewise.
* src/atomic_ops.c (AO_spin): Define as static (since not needed
outside).
* src/atomic_ops.c (AO_spin): Optimize code manually to minimize
speed dependency on compiler optimization level; add comment.
* src/atomic_ops_stack.c (AO_spin): Likewise.

Replace some FIXME items with TODO in atomic_ops.c and sysdeps headers

2012-10-03T06:46:19+00:00

* src/atomic_ops.c (AO_HASH_SIZE): Replace FIXME item with TODO one.
* src/atomic_ops/sysdeps/gcc/alpha.h (AO_fetch_compare_and_swap):
Likewise.
* src/atomic_ops/sysdeps/gcc/avr32.h (AO_fetch_compare_and_swap):
Likewise.
* src/atomic_ops/sysdeps/gcc/ia64.h (AO_compare_double_and_swap_double,
AO_compare_and_swap_double): Likewise.
* src/atomic_ops/sysdeps/gcc/m68k.h (AO_fetch_compare_and_swap):
Likewise.
* src/atomic_ops/sysdeps/gcc/mips.h (AO_and, AO_or, AO_xor): Likewise.
* src/atomic_ops/sysdeps/gcc/s390.h (AO_nop_full,
AO_fetch_compare_and_swap, AO_compare_double_and_swap_double):
Likewise.
* src/atomic_ops/sysdeps/gcc/sparc.h: Likewise.
* src/atomic_ops/sysdeps/ibmc/powerpc.h (AO_fetch_and_add, AO_and,
AO_or, AO_xor): Likewise.
* src/atomic_ops/sysdeps/msftc/arm.h
(AO_compare_double_and_swap_double): Likewise.
* src/atomic_ops/sysdeps/sunc/sparc.h: Likewise.
* src/atomic_ops/sysdeps/ao_t_is_int.h: Add TODO item.
* src/atomic_ops/sysdeps/gcc/sh.h: Likewise.

Use __builtin_expect in CAS failure loop condition checks (GCC only)

2012-03-26T09:28:08+00:00

* src/atomic_ops.c (lock, block_all_signals): Use AO_EXPECT_FALSE.
* src/atomic_ops.h (AO_EXPECT_FALSE): New macro.
* src/atomic_ops/generalize-small.template
(AO_XSIZE_fetch_and_add_full, AO_XSIZE_fetch_and_add_acquire,
AO_XSIZE_fetch_and_add_release): Use AO_EXPECT_FALSE for CAS failure
check.
* src/atomic_ops/generalize.h (AO_fetch_and_add_full,
AO_fetch_and_add_acquire, AO_fetch_and_add_release, AO_fetch_and_add,
AO_and_full, AO_or_full, AO_xor_full): Likewise.
* src/atomic_ops/sysdeps/gcc/arm.h
(AO_compare_double_and_swap_double): Likewise.
* src/atomic_ops_stack.c (AO_stack_push_explicit_aux_release,
AO_stack_pop_explicit_aux_acquire, AO_stack_push_release,
AO_stack_pop_acquire): Likewise.
* src/atomic_ops/generalize-small.h: Regenerate.

Generalize AO_compare_and_swap primitives via AO_fetch_compare_and_swap

2011-11-11T12:36:24+00:00

* src/atomic_ops.c (AO_compare_and_swap_emulation): Remove.
* src/atomic_ops/sysdeps/emul_cas.h (AO_compare_and_swap_emulation,
AO_compare_and_swap_full, AO_HAVE_compare_and_swap_full): Likewise.
* src/atomic_ops/sysdeps/gcc/ia64.h (AO_compare_and_swap_acquire,
AO_HAVE_compare_and_swap_acquire, AO_compare_and_swap_release,
AO_HAVE_compare_and_swap_release, AO_char_compare_and_swap_acquire,
AO_HAVE_char_compare_and_swap_acquire,
AO_char_compare_and_swap_release,
AO_HAVE_char_compare_and_swap_release,
AO_short_compare_and_swap_acquire,
AO_HAVE_short_compare_and_swap_acquire,
AO_short_compare_and_swap_release,
AO_HAVE_short_compare_and_swap_release,
AO_int_compare_and_swap_acquire, AO_HAVE_int_compare_and_swap_acquire,
AO_int_compare_and_swap_release,
AO_HAVE_int_compare_and_swap_release): Likewise.
* src/atomic_ops/sysdeps/generic_pthread.h (AO_compare_and_swap_full):
Likewise.
* src/atomic_ops/sysdeps/hpc/ia64.h (AO_compare_and_swap_acquire,
AO_HAVE_compare_and_swap_acquire, AO_compare_and_swap_release,
AO_HAVE_compare_and_swap_release, AO_char_compare_and_swap_acquire,
AO_HAVE_char_compare_and_swap_acquire,
AO_char_compare_and_swap_release,
AO_HAVE_char_compare_and_swap_release,
AO_short_compare_and_swap_acquire,
AO_HAVE_short_compare_and_swap_acquire,
AO_short_compare_and_swap_release,
AO_HAVE_short_compare_and_swap_release): Likewise.
* src/atomic_ops/sysdeps/ibmc/powerpc.h (AO_compare_and_swap_acquire,
AO_HAVE_compare_and_swap_acquire, AO_compare_and_swap_release,
AO_HAVE_compare_and_swap_release, AO_compare_and_swap_full,
AO_HAVE_compare_and_swap_full): Likewise.
* src/atomic_ops/sysdeps/icc/ia64.h (AO_compare_and_swap_acquire,
AO_HAVE_compare_and_swap_acquire, AO_compare_and_swap_release,
AO_HAVE_compare_and_swap_release, AO_char_compare_and_swap_acquire,
AO_HAVE_char_compare_and_swap_acquire,
AO_char_compare_and_swap_release,
AO_HAVE_char_compare_and_swap_release,
AO_short_compare_and_swap_acquire,
AO_HAVE_short_compare_and_swap_acquire,
AO_short_compare_and_swap_release,
AO_HAVE_short_compare_and_swap_release,
AO_int_compare_and_swap_acquire, AO_HAVE_int_compare_and_swap_acquire,
AO_int_compare_and_swap_release,
AO_HAVE_int_compare_and_swap_release): Likewise.
* src/atomic_ops/sysdeps/msftc/common32_defs.h
(AO_compare_and_swap_full, AO_HAVE_compare_and_swap_full): Likewise.
* src/atomic_ops/sysdeps/msftc/x86_64.h (AO_compare_and_swap_full,
AO_HAVE_compare_and_swap_full): Likewise.
* src/atomic_ops.h: Do not include emul_cas.h if any of
AO_HAVE_fetch_compare_and_swap_... is defined.
* src/atomic_ops.h (AO_HAVE_fetch_compare_and_swap_full): Do not
define AO_GENERALIZE_TWICE if AO_HAVE_fetch_compare_and_swap_full
and AO_CAN_EMUL_CAS are both defined.
* src/atomic_ops/generalize-small.template
(AO_XSIZE_compare_and_swap_full, AO_XSIZE_compare_and_swap_acquire,
AO_XSIZE_compare_and_swap_release): New template (based on the
corresponding AO_XSIZE_fetch_compare_and_swap primitive).
* src/atomic_ops/generalize-small.template
(AO_HAVE_XSIZE_compare_and_swap_full,
AO_HAVE_XSIZE_compare_and_swap_acquire,
AO_HAVE_XSIZE_compare_and_swap_release): Define.
* src/atomic_ops/generalize.h (AO_HAVE_compare_and_swap,
AO_HAVE_compare_and_swap_full, AO_HAVE_compare_and_swap_acquire,
AO_HAVE_compare_and_swap_release): Likewise.
* src/atomic_ops/generalize-small.h: Regenerate.
* src/atomic_ops/generalize.h (AO_compare_and_swap,
AO_compare_and_swap_full, AO_compare_and_swap_acquire,
AO_compare_and_swap_release): New function implementation (based on
the corresponding AO_fetch_compare_and_swap primitive).

Implement most AO_fetch_compare_and_swap primitives

2011-11-11T12:36:20+00:00

* src/atomic_ops.c (AO_fetch_compare_and_swap_emulation): Implement.
* src/atomic_ops.h: Remove FIXME for AO_fetch_compare_and_swap.
* src/atomic_ops/generalize.h (AO_fetch_compare_and_swap_acquire,
AO_fetch_compare_and_swap_release, AO_fetch_compare_and_swap_acquire,
AO_fetch_compare_and_swap_write, AO_fetch_compare_and_swap_read,
AO_fetch_compare_and_swap, AO_fetch_compare_and_swap_full,
AO_fetch_compare_and_swap_release_write,
AO_fetch_compare_and_swap_acquire_read,
AO_fetch_compare_and_swap_dd_acquire_read): Implement; define the
corresponding AO_HAVE_... macro.
* src/atomic_ops/sysdeps/ao_t_is_int.h
(AO_int_fetch_compare_and_swap_full,
AO_int_fetch_compare_and_swap_acquire,
AO_int_fetch_compare_and_swap_release,
AO_int_fetch_compare_and_swap_write,
AO_int_fetch_compare_and_swap_read, AO_int_fetch_compare_and_swap):
Likewise.
* src/atomic_ops/sysdeps/armcc/arm_v6.h (AO_fetch_compare_and_swap):
Likewise.
* src/atomic_ops/sysdeps/emul_cas.h (AO_fetch_compare_and_swap_full):
Likewise.
* src/atomic_ops/sysdeps/gcc/arm.h (AO_fetch_compare_and_swap):
Likewise.
* src/atomic_ops/sysdeps/gcc/hexagon.h (AO_fetch_compare_and_swap):
Likewise.
* src/atomic_ops/sysdeps/gcc/ia64.h
(AO_fetch_compare_and_swap_acquire, AO_fetch_compare_and_swap_release,
AO_char_fetch_compare_and_swap_acquire,
AO_char_fetch_compare_and_swap_release,
AO_short_fetch_compare_and_swap_acquire,
AO_short_fetch_compare_and_swap_release,
AO_int_fetch_compare_and_swap_acquire,
AO_int_fetch_compare_and_swap_release): Likewise.
* src/atomic_ops/sysdeps/gcc/powerpc.h (AO_fetch_compare_and_swap,
AO_fetch_compare_and_swap_acquire, AO_fetch_compare_and_swap_release,
AO_fetch_compare_and_swap_full): Likewise.
* src/atomic_ops/sysdeps/gcc/x86.h (AO_fetch_compare_and_swap_full):
Likewise.
* src/atomic_ops/sysdeps/gcc/x86_64.h
(AO_fetch_compare_and_swap_full): Likewise.
* src/atomic_ops/sysdeps/generic_pthread.h
(AO_fetch_compare_and_swap_full): Likewise.
* src/atomic_ops/sysdeps/hpc/ia64.h
(AO_fetch_compare_and_swap_acquire, AO_fetch_compare_and_swap_release,
AO_char_fetch_compare_and_swap_acquire,
AO_char_fetch_compare_and_swap_release,
AO_short_fetch_compare_and_swap_acquire,
AO_short_fetch_compare_and_swap_release): Likewise.
* src/atomic_ops/sysdeps/icc/ia64.h
(AO_fetch_compare_and_swap_acquire, AO_fetch_compare_and_swap_release,
AO_char_fetch_compare_and_swap_acquire,
AO_char_fetch_compare_and_swap_release,
AO_short_fetch_compare_and_swap_acquire,
AO_short_fetch_compare_and_swap_release,
AO_int_fetch_compare_and_swap_acquire,
AO_int_fetch_compare_and_swap_release): Likewise.
* src/atomic_ops/sysdeps/msftc/common32_defs.h
(AO_fetch_compare_and_swap_full): Likewise.
* src/atomic_ops/sysdeps/msftc/x86_64.h
(AO_fetch_compare_and_swap_full): Likewise.
* src/atomic_ops/sysdeps/sunc/x86.h
(AO_fetch_compare_and_swap_full): Likewise.
* src/atomic_ops/sysdeps/sunc/x86_64.h
(AO_fetch_compare_and_swap_full): Likewise.
* src/atomic_ops/sysdeps/emul_cas.h
(AO_fetch_compare_and_swap_emulation): Declare the function.
* src/atomic_ops/sysdeps/gcc/mips.h: Adjust FIXME.
* src/atomic_ops/sysdeps/gcc/sparc.h: Likewise.
* src/atomic_ops/sysdeps/ibmc/powerpc.h (AO_fetch_compare_and_swap,
AO_fetch_compare_and_swap_acquire, AO_fetch_compare_and_swap_release,
AO_fetch_compare_and_swap_full): Add implementation stub.
* tests/list_atomic.template (list_atomicXX): Add
AO_fetch_compare_and_swapXX call.
* tests/test_atomic_include.template (test_atomicXX): Likewise.

Add FIXMEs to add AO_fetch_compare_and_swap primitives

2011-11-11T12:36:16+00:00