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util: Use unique type for QemuRecMutex in thread-posix.h

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We will shortly convert lockable.h to _Generic, and we cannot
have two compatible types in the same expansion.  Wrap QemuMutex
in a struct, and unwrap in qemu-thread-posix.c.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <20210614233143.1221879-6-richard.henderson@linaro.org>
This commit is contained in:
Richard Henderson 2021-06-14 16:31:40 -07:00
parent 9c75bae717
commit 6c98635ed7
2 changed files with 14 additions and 8 deletions
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10
include/qemu/thread-posix.h
View file

@ -4,8 +4,6 @@
#include <pthread.h>
#include <semaphore.h>
typedef QemuMutex QemuRecMutex;
struct QemuMutex {
pthread_mutex_t lock;
#ifdef CONFIG_DEBUG_MUTEX
@ -15,6 +13,14 @@ struct QemuMutex {
bool initialized;
};
/*
* QemuRecMutex cannot be a typedef of QemuMutex lest we have two
* compatible cases in _Generic. See qemu/lockable.h.
*/
typedef struct QemuRecMutex {
QemuMutex m;
} QemuRecMutex;
struct QemuCond {
pthread_cond_t cond;
bool initialized;