summaryrefslogtreecommitdiff
path: root/include/my_atomic.h
diff options
context:
space:
mode:
authorunknown <vvaintroub/Wlad@vaio.>2008-01-10 13:21:53 +0100
committerunknown <vvaintroub/Wlad@vaio.>2008-01-10 13:21:53 +0100
commitce8de7afdffd46507f000048a17722f81eec7688 (patch)
tree9bd52862a62e97454cd29e245d4e68d9a9175211 /include/my_atomic.h
parent9b9175ff752957d32a3c532fed0ed52123efa234 (diff)
downloadmariadb-git-ce8de7afdffd46507f000048a17722f81eec7688.tar.gz
Windows fixes
-new option WITH_MARIA_STORAGE_ENGINE for config.js -correct build errors -build test executables -downport changes for atomic functions from 5.2 -remove LOCK_uuid_generator from C++ files to avoid linker errors -new function my_uuid2str() BitKeeper/deleted/.del-x86-msvc.h: Delete: include/atomic/x86-msvc.h CMakeLists.txt: Windows fixes: -New option WITH_MARIA_STORAGE_ENGINE -Add unit tests include/Makefile.am: replace x86-msvc.h with generic-msvc.h include/config-win.h: my_chmod() support include/my_atomic.h: Downport my_atomic from 5.2 tree include/my_bit.h: Correct unresolved symbol errors on Windows include/my_pthread.h: pthread_mutex_unlock now returns 0 (was void previously) defined PTHREAD_STACK_MIN include/my_sys.h: New function my_uuid2str() define MY_UUID_STRING_LENGTH include/atomic/nolock.h: Downport my_atomic from 5.2 tree libmysqld/CMakeLists.txt: New option WITH_MARIA_STORAGE_ENGINE mysys/CMakeLists.txt: Add missing files mysys/lf_dynarray.c: Fix compiler errors on Windows mysys/my_getncpus.c: Windows port mysys/my_uuid.c: Windows fixes: there is no random() on Windows, use ANSI rand() New function my_uuid2str() mysys/my_winthread.c: Downport from 5.2 tree -Call my_thread_end() before pthread_exit() -Avoid crash if pthread_create is called with NULL attributes sql/CMakeLists.txt: Link mysqld with Maria storage engine sql/item_func.cc: Remove LOCK_uuid_generator from C++ to avoid linker errors. Use dedicated mutex for short uuids sql/item_strfunc.cc: Use my_uuid() and my_uuid2str() functions from mysys. sql/item_strfunc.h: Define MY_UUID_STRING_LENGTH in my_sys.h sql/mysql_priv.h: LOCK_uuid_generator must be declared as extern "C" sql/mysqld.cc: Init and destroy LOCK_uuid_short mutex storage/maria/CMakeLists.txt: -Use the same source files as in Makefile.am -Build test binaries storage/maria/ha_maria.cc: snprintf->my_snprintf storage/maria/lockman.c: Fix compiler error on Windows storage/maria/ma_check.c: Fix compiler error on Windows storage/maria/ma_loghandler.c: Fix compile errors my_open()/my_sync() do not work for directories on Windows storage/maria/ma_recovery.c: Fix compile error on Windows storage/maria/ma_test2.c: Rename variable to avoid naming conflict with Microsoft C runtime function storage/maria/ma_test3.c: Fix build errors on Windows storage/maria/tablockman.c: Fix build errors on Windows storage/maria/unittest/Makefile.am: Add CMakeLists.txt storage/maria/unittest/ma_pagecache_consist.c: Fix build errors on Windows remove loop from get_len() storage/maria/unittest/ma_pagecache_single.c: Fix build errors on Windows storage/maria/unittest/ma_test_loghandler-t.c: Windows fixes -Avoid division by 0 in expressions like x/(RAND_MAX/y), where y is larger than RAND_MAX(==0x7fff on Windows) storage/maria/unittest/ma_test_loghandler_multigroup-t.c: Windows fixes -Avoid division by 0 in expressions like x/(RAND_MAX/y), where y is larger than RAND_MAX(==0x7fff on Windows) -remove loop in get_len() storage/maria/unittest/ma_test_loghandler_multithread-t.c: Windows fixes -Avoid division by 0 in expressions like x/(RAND_MAX/y), where y is larger than RAND_MAX(==0x7fff on Windows) -remove loop in get_len() storage/maria/unittest/ma_test_loghandler_noflush-t.c: Fix build errors on Windows storage/maria/unittest/test_file.c: Correct the code to get file size on Windows. stat() information can be outdated and thus cannot be trusted. On Vista,stat() returns file size=0 until the file is closed at the first time. storage/myisam/CMakeLists.txt: Fix compiler errors on Windows Build test executables storage/myisam/mi_test2.c: Rename variable to avoid naming conflict with Microsoft C runtime function storage/myisam/mi_test3.c: Fix build errors on Windows strings/CMakeLists.txt: Add missing file unittest/unit.pl: Windows: downport unittest changes from 5.2 bk tree unittest/mysys/Makefile.am: Windows: downport unittest changes from 5.2 bk tree unittest/mysys/my_atomic-t.c: Windows: downport unittest changes from 5.2 bk tree unittest/mytap/Makefile.am: Windows: downport unittest changes from 5.2 bk tree unittest/mytap/tap.c: Windows: downport unittest changes from 5.2 bk tree win/configure.js: Add WITH_MARIA_STORAGE_ENGINE configure option unittest/mytap/CMakeLists.txt: Add missing file unittest/mysys/CMakeLists.txt: Add missing file storage/maria/unittest/CMakeLists.txt: Add missing file BitKeeper/etc/ignore: Added comments maria-win.patch to the ignore list include/atomic/generic-msvc.h: Implement atomic operations with MSVC intrinsics
Diffstat (limited to 'include/my_atomic.h')
-rw-r--r--include/my_atomic.h57
1 files changed, 33 insertions, 24 deletions
diff --git a/include/my_atomic.h b/include/my_atomic.h
index 59297750cb7..5579a98b510 100644
--- a/include/my_atomic.h
+++ b/include/my_atomic.h
@@ -45,6 +45,8 @@
On architectures where these operations are really atomic, rwlocks will
be optimized away.
+ 8- and 16-bit atomics aren't implemented for windows (see generic-msvc.h),
+ but can be added, if necessary.
*/
#ifndef my_atomic_rwlock_init
@@ -56,15 +58,32 @@
#endif
#ifndef make_atomic_cas_body
+/* nolock.h was not able to generate even a CAS function, fall back */
#include "atomic/rwlock.h"
-#endif
-
+#else
+/* define missing functions by using the already generated ones */
#ifndef make_atomic_add_body
#define make_atomic_add_body(S) \
int ## S tmp=*a; \
while (!my_atomic_cas ## S(a, &tmp, tmp+v)); \
v=tmp;
#endif
+#ifndef make_atomic_fas_body
+#define make_atomic_fas_body(S) \
+ int ## S tmp=*a; \
+ while (!my_atomic_cas ## S(a, &tmp, v)); \
+ v=tmp;
+#endif
+#ifndef make_atomic_load_body
+#define make_atomic_load_body(S) \
+ ret= 0; /* avoid compiler warning */ \
+ (void)(my_atomic_cas ## S(a, &ret, ret));
+#endif
+#ifndef make_atomic_store_body
+#define make_atomic_store_body(S) \
+ (void)(my_atomic_fas ## S (a, v));
+#endif
+#endif
/*
transparent_union doesn't work in g++
@@ -122,6 +141,15 @@ make_transparent_unions(ptr)
#ifdef HAVE_INLINE
+#define make_atomic_cas(S) \
+STATIC_INLINE int my_atomic_cas ## S(Uv_ ## S U_a, \
+ Uv_ ## S U_cmp, U_ ## S U_set) \
+{ \
+ int8 ret; \
+ make_atomic_cas_body(S); \
+ return ret; \
+}
+
#define make_atomic_add(S) \
STATIC_INLINE int ## S my_atomic_add ## S( \
Uv_ ## S U_a, U_ ## S U_v) \
@@ -138,15 +166,6 @@ STATIC_INLINE int ## S my_atomic_fas ## S( \
return v; \
}
-#define make_atomic_cas(S) \
-STATIC_INLINE int my_atomic_cas ## S(Uv_ ## S U_a, \
- Uv_ ## S U_cmp, U_ ## S U_set) \
-{ \
- int8 ret; \
- make_atomic_cas_body(S); \
- return ret; \
-}
-
#define make_atomic_load(S) \
STATIC_INLINE int ## S my_atomic_load ## S(Uv_ ## S U_a) \
{ \
@@ -181,30 +200,20 @@ extern void my_atomic_store ## S(Uv_ ## S, U_ ## S);
#endif
-make_atomic_cas( 8)
-make_atomic_cas(16)
make_atomic_cas(32)
make_atomic_cas(ptr)
-make_atomic_add( 8)
-make_atomic_add(16)
make_atomic_add(32)
-make_atomic_load( 8)
-make_atomic_load(16)
make_atomic_load(32)
make_atomic_load(ptr)
-make_atomic_store( 8)
-make_atomic_store(16)
-make_atomic_store(32)
-make_atomic_store(ptr)
-
-make_atomic_fas( 8)
-make_atomic_fas(16)
make_atomic_fas(32)
make_atomic_fas(ptr)
+make_atomic_store(32)
+make_atomic_store(ptr)
+
#ifdef _atomic_h_cleanup_
#include _atomic_h_cleanup_
#undef _atomic_h_cleanup_