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From: Iain Buclaw <ibuclaw@gcc.gnu.org>
To: gcc-cvs@gcc.gnu.org
Subject: [gcc(refs/users/ibuclaw/heads/darwin)] libphobos: Add more uses of getTargetInfo(osxVersionMin). Implement posix_memalign if missing
Date: Sun, 7 Mar 2021 17:01:45 +0000 (GMT) [thread overview]
Message-ID: <20210307170145.0C66C393A43D@sourceware.org> (raw)
https://gcc.gnu.org/g:a161f87230064cc01cf8de535f58f87503eec405
commit a161f87230064cc01cf8de535f58f87503eec405
Author: Iain Buclaw <ibuclaw@gdcproject.org>
Date: Sun Dec 6 00:19:39 2020 +0100
libphobos: Add more uses of getTargetInfo(osxVersionMin). Implement posix_memalign if missing
Diff:
---
libphobos/libdruntime/Makefile.am | 25 ++--
libphobos/libdruntime/Makefile.in | 35 ++---
libphobos/libdruntime/core/stdc/math.d | 20 +--
libphobos/libdruntime/core/sys/darwin/config.d | 61 +++++++++
libphobos/libdruntime/core/sys/darwin/mach/dyld.d | 18 ++-
libphobos/libdruntime/core/sys/darwin/pthread.d | 35 +++--
libphobos/libdruntime/core/sys/darwin/string.d | 8 +-
libphobos/libdruntime/core/sys/posix/stdio.d | 4 +-
libphobos/libdruntime/core/sys/posix/stdlib.d | 8 +-
.../src/std/experimental/allocator/mallocator.d | 141 ++++++++++++++++++---
10 files changed, 278 insertions(+), 77 deletions(-)
diff --git a/libphobos/libdruntime/Makefile.am b/libphobos/libdruntime/Makefile.am
index c332d1787df..9d66f07c19a 100644
--- a/libphobos/libdruntime/Makefile.am
+++ b/libphobos/libdruntime/Makefile.am
@@ -206,18 +206,19 @@ DRUNTIME_DSOURCES_BIONIC = core/sys/bionic/err.d \
core/sys/bionic/fcntl.d core/sys/bionic/stdlib.d \
core/sys/bionic/string.d core/sys/bionic/unistd.d
-DRUNTIME_DSOURCES_DARWIN = core/sys/darwin/crt_externs.d \
- core/sys/darwin/dlfcn.d core/sys/darwin/err.d \
- core/sys/darwin/execinfo.d core/sys/darwin/ifaddrs.d \
- core/sys/darwin/mach/dyld.d core/sys/darwin/mach/getsect.d \
- core/sys/darwin/mach/kern_return.d core/sys/darwin/mach/loader.d \
- core/sys/darwin/mach/nlist.d core/sys/darwin/mach/port.d \
- core/sys/darwin/mach/semaphore.d core/sys/darwin/mach/stab.d \
- core/sys/darwin/mach/thread_act.d core/sys/darwin/netinet/in_.d \
- core/sys/darwin/pthread.d core/sys/darwin/stdlib.d \
- core/sys/darwin/string.d core/sys/darwin/sys/attr.d \
- core/sys/darwin/sys/cdefs.d core/sys/darwin/sys/event.d \
- core/sys/darwin/sys/mman.d core/sys/darwin/sys/sysctl.d
+DRUNTIME_DSOURCES_DARWIN = core/sys/darwin/config.d \
+ core/sys/darwin/crt_externs.d core/sys/darwin/dlfcn.d \
+ core/sys/darwin/err.d core/sys/darwin/execinfo.d \
+ core/sys/darwin/ifaddrs.d core/sys/darwin/mach/dyld.d \
+ core/sys/darwin/mach/getsect.d core/sys/darwin/mach/kern_return.d \
+ core/sys/darwin/mach/loader.d core/sys/darwin/mach/nlist.d \
+ core/sys/darwin/mach/port.d core/sys/darwin/mach/semaphore.d \
+ core/sys/darwin/mach/stab.d core/sys/darwin/mach/thread_act.d \
+ core/sys/darwin/netinet/in_.d core/sys/darwin/pthread.d \
+ core/sys/darwin/stdlib.d core/sys/darwin/string.d \
+ core/sys/darwin/sys/attr.d core/sys/darwin/sys/cdefs.d \
+ core/sys/darwin/sys/event.d core/sys/darwin/sys/mman.d \
+ core/sys/darwin/sys/sysctl.d
DRUNTIME_DSOURCES_DRAGONFLYBSD = core/sys/dragonflybsd/dlfcn.d \
core/sys/dragonflybsd/err.d core/sys/dragonflybsd/execinfo.d \
diff --git a/libphobos/libdruntime/Makefile.in b/libphobos/libdruntime/Makefile.in
index 23c161f96d0..1bb20559e20 100644
--- a/libphobos/libdruntime/Makefile.in
+++ b/libphobos/libdruntime/Makefile.in
@@ -255,10 +255,11 @@ am__objects_3 = core/sys/posix/aio.lo core/sys/posix/arpa/inet.lo \
core/sys/posix/time.lo core/sys/posix/ucontext.lo \
core/sys/posix/unistd.lo core/sys/posix/utime.lo
@DRUNTIME_OS_POSIX_TRUE@am__objects_4 = $(am__objects_3)
-am__objects_5 = core/sys/darwin/crt_externs.lo \
- core/sys/darwin/dlfcn.lo core/sys/darwin/err.lo \
- core/sys/darwin/execinfo.lo core/sys/darwin/ifaddrs.lo \
- core/sys/darwin/mach/dyld.lo core/sys/darwin/mach/getsect.lo \
+am__objects_5 = core/sys/darwin/config.lo \
+ core/sys/darwin/crt_externs.lo core/sys/darwin/dlfcn.lo \
+ core/sys/darwin/err.lo core/sys/darwin/execinfo.lo \
+ core/sys/darwin/ifaddrs.lo core/sys/darwin/mach/dyld.lo \
+ core/sys/darwin/mach/getsect.lo \
core/sys/darwin/mach/kern_return.lo \
core/sys/darwin/mach/loader.lo core/sys/darwin/mach/nlist.lo \
core/sys/darwin/mach/port.lo core/sys/darwin/mach/semaphore.lo \
@@ -833,18 +834,19 @@ DRUNTIME_DSOURCES_BIONIC = core/sys/bionic/err.d \
core/sys/bionic/fcntl.d core/sys/bionic/stdlib.d \
core/sys/bionic/string.d core/sys/bionic/unistd.d
-DRUNTIME_DSOURCES_DARWIN = core/sys/darwin/crt_externs.d \
- core/sys/darwin/dlfcn.d core/sys/darwin/err.d \
- core/sys/darwin/execinfo.d core/sys/darwin/ifaddrs.d \
- core/sys/darwin/mach/dyld.d core/sys/darwin/mach/getsect.d \
- core/sys/darwin/mach/kern_return.d core/sys/darwin/mach/loader.d \
- core/sys/darwin/mach/nlist.d core/sys/darwin/mach/port.d \
- core/sys/darwin/mach/semaphore.d core/sys/darwin/mach/stab.d \
- core/sys/darwin/mach/thread_act.d core/sys/darwin/netinet/in_.d \
- core/sys/darwin/pthread.d core/sys/darwin/stdlib.d \
- core/sys/darwin/string.d core/sys/darwin/sys/attr.d \
- core/sys/darwin/sys/cdefs.d core/sys/darwin/sys/event.d \
- core/sys/darwin/sys/mman.d core/sys/darwin/sys/sysctl.d
+DRUNTIME_DSOURCES_DARWIN = core/sys/darwin/config.d \
+ core/sys/darwin/crt_externs.d core/sys/darwin/dlfcn.d \
+ core/sys/darwin/err.d core/sys/darwin/execinfo.d \
+ core/sys/darwin/ifaddrs.d core/sys/darwin/mach/dyld.d \
+ core/sys/darwin/mach/getsect.d core/sys/darwin/mach/kern_return.d \
+ core/sys/darwin/mach/loader.d core/sys/darwin/mach/nlist.d \
+ core/sys/darwin/mach/port.d core/sys/darwin/mach/semaphore.d \
+ core/sys/darwin/mach/stab.d core/sys/darwin/mach/thread_act.d \
+ core/sys/darwin/netinet/in_.d core/sys/darwin/pthread.d \
+ core/sys/darwin/stdlib.d core/sys/darwin/string.d \
+ core/sys/darwin/sys/attr.d core/sys/darwin/sys/cdefs.d \
+ core/sys/darwin/sys/event.d core/sys/darwin/sys/mman.d \
+ core/sys/darwin/sys/sysctl.d
DRUNTIME_DSOURCES_DRAGONFLYBSD = core/sys/dragonflybsd/dlfcn.d \
core/sys/dragonflybsd/err.d core/sys/dragonflybsd/execinfo.d \
@@ -1341,6 +1343,7 @@ core/sys/posix/utime.lo: core/sys/posix/$(am__dirstamp)
core/sys/darwin/$(am__dirstamp):
@$(MKDIR_P) core/sys/darwin
@: > core/sys/darwin/$(am__dirstamp)
+core/sys/darwin/config.lo: core/sys/darwin/$(am__dirstamp)
core/sys/darwin/crt_externs.lo: core/sys/darwin/$(am__dirstamp)
core/sys/darwin/dlfcn.lo: core/sys/darwin/$(am__dirstamp)
core/sys/darwin/err.lo: core/sys/darwin/$(am__dirstamp)
diff --git a/libphobos/libdruntime/core/stdc/math.d b/libphobos/libdruntime/core/stdc/math.d
index e8d1fa8e7b5..19bedd47006 100644
--- a/libphobos/libdruntime/core/stdc/math.d
+++ b/libphobos/libdruntime/core/stdc/math.d
@@ -989,6 +989,8 @@ else version (MinGW)
}
else version (Darwin)
{
+ import core.sys.darwin.config;
+
enum
{
///
@@ -1035,7 +1037,15 @@ else version (Darwin)
// Support of OSX < 10.8 needs legacy function names without "l" suffix
// with exception of __signbitl. Otherwise could use else version like
// other Darwins
- version (OSX)
+ static if (__traits(getTargetInfo, "osxVersionMin") >= __MAC_10_8)
+ {
+ // Available OSX >= 10.8, iOS >= 6.0, all TVOS and WatchOS
+ pure int __fpclassifyl(real x);
+ pure int __isfinitel(real x);
+ pure int __isinfl(real x);
+ pure int __isnanl(real x);
+ }
+ else
{
version (AArch64)
{
@@ -1057,14 +1067,6 @@ else version (Darwin)
alias __isnanl = __isnan;
}
}
- else
- {
- // Available OSX >= 10.8, iOS >= 6.0, all TVOS and WatchOS
- pure int __fpclassifyl(real x);
- pure int __isfinitel(real x);
- pure int __isinfl(real x);
- pure int __isnanl(real x);
- }
extern (D)
{
diff --git a/libphobos/libdruntime/core/sys/darwin/config.d b/libphobos/libdruntime/core/sys/darwin/config.d
new file mode 100644
index 00000000000..347aea41f6b
--- /dev/null
+++ b/libphobos/libdruntime/core/sys/darwin/config.d
@@ -0,0 +1,61 @@
+/**
+ * D header file for Darwin.
+ *
+ * Copyright: Copyright (c) 2020 D Language Foundation
+ * Authors: Iain Buclaw
+ */
+module core.sys.darwin.config;
+
+version (OSX)
+ version = Darwin;
+else version (iOS)
+ version = Darwin;
+else version (TVOS)
+ version = Darwin;
+else version (WatchOS)
+ version = Darwin;
+
+version (Darwin):
+
+public import core.sys.posix.config;
+
+// The compiler exposes `__traits(getTargetInfo, "osxVersionMin")` as a way to
+// obtain the lower bound support OSX version. In some compilers this is
+// controlled by a command-line option:
+// -mmacosx-version-min= (on OSX).
+// -miphoneos-version-min= (on iOS)
+// -mtvos-version-min= (on TVOS)
+// -mwatchos-version-min= (on WatchOS)
+
+enum __MAC_10_0 = 100000;
+enum __MAC_10_1 = 100100;
+enum __MAC_10_2 = 100200;
+enum __MAC_10_3 = 100300;
+enum __MAC_10_4 = 100400;
+enum __MAC_10_5 = 100500;
+enum __MAC_10_6 = 100600;
+enum __MAC_10_7 = 100700;
+enum __MAC_10_8 = 100800;
+enum __MAC_10_9 = 100900;
+enum __MAC_10_10 = 101000;
+enum __MAC_10_10_2 = 101002;
+enum __MAC_10_10_3 = 101003;
+enum __MAC_10_11 = 101100;
+enum __MAC_10_11_2 = 101102;
+enum __MAC_10_11_3 = 101103;
+enum __MAC_10_11_4 = 101104;
+enum __MAC_10_12 = 101200;
+enum __MAC_10_12_1 = 101201;
+enum __MAC_10_12_2 = 101202;
+enum __MAC_10_12_4 = 101204;
+enum __MAC_10_13 = 101300;
+enum __MAC_10_13_1 = 101301;
+enum __MAC_10_13_2 = 101302;
+enum __MAC_10_13_4 = 101304;
+enum __MAC_10_14 = 101400;
+enum __MAC_10_14_1 = 101401;
+enum __MAC_10_14_4 = 101404;
+enum __MAC_10_15 = 101500;
+enum __MAC_10_15_1 = 101501;
+enum __MAC_10_16 = 101501;
+enum __MAC_11_0 = 110000;
diff --git a/libphobos/libdruntime/core/sys/darwin/mach/dyld.d b/libphobos/libdruntime/core/sys/darwin/mach/dyld.d
index 6e28bfa655b..02d57433429 100644
--- a/libphobos/libdruntime/core/sys/darwin/mach/dyld.d
+++ b/libphobos/libdruntime/core/sys/darwin/mach/dyld.d
@@ -28,14 +28,18 @@ nothrow:
public import core.stdc.stdint; // for intptr_t
public import core.sys.darwin.mach.loader;
+import core.sys.darwin.config;
-uint _dyld_image_count();
-const(char)* _dyld_get_image_name(uint image_index);
-mach_header* _dyld_get_image_header(uint image_index);
-intptr_t _dyld_get_image_vmaddr_slide(uint image_index);
-
-void _dyld_register_func_for_add_image(void function(const scope mach_header* mh, intptr_t vmaddr_slide));
-void _dyld_register_func_for_remove_image(void function(const scope mach_header* mh, intptr_t vmaddr_slide));
+// __OSX_AVAILABLE_STARTING(__MAC_10_1, __IPHONE_2_0)
+static if (__traits(getTargetInfo, "osxVersionMin") >= __MAC_10_1)
+{
+ uint _dyld_image_count();
+ const(char)* _dyld_get_image_name(uint image_index);
+ mach_header* _dyld_get_image_header(uint image_index);
+ intptr_t _dyld_get_image_vmaddr_slide(uint image_index);
+ void _dyld_register_func_for_add_image(void function(in mach_header* mh, intptr_t vmaddr_slide));
+ void _dyld_register_func_for_remove_image(void function(in mach_header* mh, intptr_t vmaddr_slide));
+}
int NSVersionOfRunTimeLibrary(const char* libraryPath);
int NSVersionOfLinkTimeLibrary(const char* libraryPath);
diff --git a/libphobos/libdruntime/core/sys/darwin/pthread.d b/libphobos/libdruntime/core/sys/darwin/pthread.d
index 456cde96cbd..9a1aaafd440 100644
--- a/libphobos/libdruntime/core/sys/darwin/pthread.d
+++ b/libphobos/libdruntime/core/sys/darwin/pthread.d
@@ -29,22 +29,32 @@ nothrow:
public import core.sys.posix.pthread;
public import core.sys.darwin.mach.port;
+import core.sys.darwin.config;
int pthread_is_threaded_np();
-int pthread_threadid_np(pthread_t, ulong*);
-// ^ __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2)
-int pthread_rwlock_longrdlock_np(pthread_rwlock_t*);
-int pthread_rwlock_yieldwrlock_np(pthread_rwlock_t*);
-// ^ __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA);
+// __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2)
+static if (__traits(getTargetInfo, "osxVersionMin") >= __MAC_10_6)
+{
+ int pthread_threadid_np(pthread_t, ulong*);
+}
+// __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_NA)
+static if (__traits(getTargetInfo, "osxVersionMin") >= __MAC_10_7)
+{
+ int pthread_rwlock_longrdlock_np(pthread_rwlock_t*);
+ int pthread_rwlock_yieldwrlock_np(pthread_rwlock_t*);
+}
int pthread_rwlock_downgrade_np(pthread_rwlock_t*);
int pthread_rwlock_upgrade_np(pthread_rwlock_t*);
int pthread_rwlock_tryupgrade_np(pthread_rwlock_t*);
int pthread_rwlock_held_np(pthread_rwlock_t*);
int pthread_rwlock_rdheld_np(pthread_rwlock_t*);
int pthread_rwlock_wrheld_np(pthread_rwlock_t*);
-int pthread_getname_np(pthread_t, char*, size_t);
-int pthread_setname_np(const scope char*);
-// ^ __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2)
+// __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_2)
+static if (__traits(getTargetInfo, "osxVersionMin") >= __MAC_10_6)
+{
+ int pthread_getname_np(pthread_t, char*, size_t);
+ int pthread_setname_np(in char*);
+}
int pthread_main_np();
mach_port_t pthread_mach_thread_np(pthread_t);
size_t pthread_get_stacksize_np(pthread_t);
@@ -53,8 +63,11 @@ int pthread_cond_signal_thread_np(pthread_cond_t*, pthread_t);
int pthread_cond_timedwait_relative_np(pthread_cond_t*, pthread_mutex_t*, const scope timespec*);
int pthread_create_suspended_np(pthread_t*, const scope pthread_attr_t*, void* function(void*), void*);
int pthread_kill(pthread_t, int);
-pthread_t pthread_from_mach_thread_np(mach_port_t);
-// ^ __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0)
-int pthread_sigmask(int, const scope sigset_t*, sigset_t*);
+// __OSX_AVAILABLE_STARTING(__MAC_10_5, __IPHONE_2_0)
+static if (__traits(getTargetInfo, "osxVersionMin") >= __MAC_10_5)
+{
+ pthread_t pthread_from_mach_thread_np(mach_port_t);
+}
+int pthread_sigmask(int, in sigset_t*, sigset_t*);
// ^ __DARWIN_ALIAS(pthread_sigmask)
void pthread_yield_np();
diff --git a/libphobos/libdruntime/core/sys/darwin/string.d b/libphobos/libdruntime/core/sys/darwin/string.d
index bd65fde27bc..20dcd1fdc81 100644
--- a/libphobos/libdruntime/core/sys/darwin/string.d
+++ b/libphobos/libdruntime/core/sys/darwin/string.d
@@ -9,6 +9,7 @@ module core.sys.darwin.string;
public import core.stdc.string;
import core.sys.darwin.sys.cdefs;
+import core.sys.darwin.config;
version (OSX)
version = Darwin;
@@ -26,6 +27,9 @@ nothrow:
static if (__DARWIN_C_LEVEL >= __DARWIN_C_FULL)
{
- // ^ __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3);
- pure void* memmem(return const void* haystack, size_t haystacklen, scope const void* needle, size_t needlelen);
+ // __OSX_AVAILABLE_STARTING(__MAC_10_7, __IPHONE_4_3)
+ static if (__traits(getTargetInfo, "osxVersionMin") >= __MAC_10_7)
+ {
+ pure void* memmem(return const void* haystack, size_t haystacklen, scope const void* needle, size_t needlelen);
+ }
}
diff --git a/libphobos/libdruntime/core/sys/posix/stdio.d b/libphobos/libdruntime/core/sys/posix/stdio.d
index b253f86b0ea..4ace0ef8945 100644
--- a/libphobos/libdruntime/core/sys/posix/stdio.d
+++ b/libphobos/libdruntime/core/sys/posix/stdio.d
@@ -373,12 +373,14 @@ else version (CRuntime_Bionic)
}
else version (Darwin)
{
+ import core.sys.darwin.config;
+
enum L_ctermid = 1024;
int fseeko(FILE*, off_t, int);
off_t ftello(FILE*);
- static if (__traits(getTargetInfo, "osxVersionMin") >= 100700)
+ static if (__traits(getTargetInfo, "osxVersionMin") >= __MAC_10_7)
{
ssize_t getdelim(char**, size_t*, int, FILE*);
ssize_t getline(char**, size_t*, FILE*);
diff --git a/libphobos/libdruntime/core/sys/posix/stdlib.d b/libphobos/libdruntime/core/sys/posix/stdlib.d
index 4c10d4e0ed5..57e369d41a5 100644
--- a/libphobos/libdruntime/core/sys/posix/stdlib.d
+++ b/libphobos/libdruntime/core/sys/posix/stdlib.d
@@ -119,7 +119,13 @@ else version (Solaris)
}
else version (Darwin)
{
- int posix_memalign(void**, size_t, size_t);
+ import core.sys.darwin.config;
+
+ // __OSX_AVAILABLE_STARTING(__MAC_10_6, __IPHONE_3_0)
+ static if (__traits(getTargetInfo, "osxVersionMin") >= __MAC_10_6)
+ {
+ int posix_memalign(void**, size_t, size_t);
+ }
}
else version (CRuntime_Bionic)
{
diff --git a/libphobos/src/std/experimental/allocator/mallocator.d b/libphobos/src/std/experimental/allocator/mallocator.d
index 2d1dec39a74..6e1866bc976 100644
--- a/libphobos/src/std/experimental/allocator/mallocator.d
+++ b/libphobos/src/std/experimental/allocator/mallocator.d
@@ -194,6 +194,84 @@ version (Windows)
}
}
+version (Posix)
+{
+ // Not all platforms have posix_memalign available, supply own implementation
+ // if this is the case. Avoid calling it posix_memalign because it needs
+ // special handling for realloc and free cases.
+ static if (!__traits(compiles, { import core.sys.posix.stdlib : posix_memalign; }))
+ {
+ // Helper to cast the infos written before the aligned pointer
+ // this header keeps track of the size (required to realloc) and of
+ // the base ptr (required to free).
+ private struct AlignInfo
+ {
+ void* basePtr;
+ size_t size;
+
+ @nogc nothrow
+ static AlignInfo* opCall(void* ptr)
+ {
+ return cast(AlignInfo*) (ptr - AlignInfo.sizeof);
+ }
+ }
+
+ @nogc nothrow
+ private void* _aligned_malloc(size_t size, size_t alignment)
+ {
+ import core.stdc.stdlib : malloc;
+ size_t offset = alignment + size_t.sizeof * 2 - 1;
+
+ // unaligned chunk
+ void* basePtr = malloc(size + offset);
+ if (!basePtr) return null;
+
+ // get aligned location within the chunk
+ void* alignedPtr = cast(void**)((cast(size_t)(basePtr) + offset)
+ & ~(alignment - 1));
+
+ // write the header before the aligned pointer
+ AlignInfo* head = AlignInfo(alignedPtr);
+ head.basePtr = basePtr;
+ head.size = size;
+
+ return alignedPtr;
+ }
+
+ @nogc nothrow
+ private void* _aligned_realloc(void* ptr, size_t size, size_t alignment)
+ {
+ import core.stdc.stdlib : free;
+ import core.stdc.string : memcpy;
+
+ if (!ptr) return _aligned_malloc(size, alignment);
+
+ // gets the header from the exising pointer
+ AlignInfo* head = AlignInfo(ptr);
+
+ // gets a new aligned pointer
+ void* alignedPtr = _aligned_malloc(size, alignment);
+ if (!alignedPtr)
+ return null;
+
+ // copy exising data
+ memcpy(alignedPtr, ptr, head.size);
+ free(head.basePtr);
+
+ return alignedPtr;
+ }
+
+ @nogc nothrow
+ private void _aligned_free(void *ptr)
+ {
+ import core.stdc.stdlib : free;
+ if (!ptr) return;
+ AlignInfo* head = AlignInfo(ptr);
+ free(head.basePtr);
+ }
+ }
+}
+
/**
Aligned allocator using OS-specific primitives, under a uniform API.
*/
@@ -226,24 +304,32 @@ struct AlignedMallocator
@trusted @nogc nothrow
void[] alignedAllocate(size_t bytes, uint a) shared
{
- import core.stdc.errno : ENOMEM, EINVAL;
- import core.sys.posix.stdlib : posix_memalign;
- assert(a.isGoodDynamicAlignment);
- void* result;
- auto code = posix_memalign(&result, a, bytes);
- if (code == ENOMEM)
- return null;
-
- else if (code == EINVAL)
+ static if (__traits(compiles, _aligned_malloc))
{
- assert(0, "AlignedMallocator.alignment is not a power of two "
- ~"multiple of (void*).sizeof, according to posix_memalign!");
+ auto result = _aligned_malloc(bytes, a);
+ return result ? result[0 .. bytes] : null;
}
- else if (code != 0)
- assert(0, "posix_memalign returned an unknown code!");
-
else
- return result[0 .. bytes];
+ {
+ import core.stdc.errno : ENOMEM, EINVAL;
+ import core.sys.posix.stdlib : posix_memalign;
+ assert(a.isGoodDynamicAlignment);
+ void* result;
+ auto code = posix_memalign(&result, a, bytes);
+ if (code == ENOMEM)
+ return null;
+
+ else if (code == EINVAL)
+ {
+ assert(0, "AlignedMallocator.alignment is not a power of two "
+ ~"multiple of (void*).sizeof, according to posix_memalign!");
+ }
+ else if (code != 0)
+ assert(0, "posix_memalign returned an unknown code!");
+
+ else
+ return result[0 .. bytes];
+ }
}
else version (Windows)
@trusted @nogc nothrow
@@ -263,8 +349,13 @@ struct AlignedMallocator
@system @nogc nothrow
bool deallocate(void[] b) shared
{
- import core.stdc.stdlib : free;
- free(b.ptr);
+ static if (__traits(compiles, _aligned_free))
+ _aligned_free(b.ptr);
+ else
+ {
+ import core.stdc.stdlib : free;
+ free(b.ptr);
+ }
return true;
}
else version (Windows)
@@ -284,7 +375,21 @@ struct AlignedMallocator
@system @nogc nothrow
bool reallocate(ref void[] b, size_t newSize) shared
{
- return Mallocator.instance.reallocate(b, newSize);
+ static if (__traits(compiles, _aligned_realloc))
+ {
+ if (!newSize)
+ {
+ deallocate(b);
+ b = null;
+ return true;
+ }
+ auto p = cast(ubyte*) _aligned_realloc(b.ptr, newSize, alignment);
+ if (!p) return false;
+ b = p[0 .. newSize];
+ return true;
+ }
+ else
+ return Mallocator.instance.reallocate(b, newSize);
}
version (Windows)
@system @nogc nothrow
next reply other threads:[~2021-03-07 17:01 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-07 17:01 Iain Buclaw [this message]
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