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| author | Max Kellermann <max@duempel.org> | 2014-09-13 11:26:17 +0200 |
|---|---|---|
| committer | Max Kellermann <max@duempel.org> | 2014-09-13 11:26:17 +0200 |
| commit | e304d0f8ee404ef7e1223a324012d4fb4049185d (patch) | |
| tree | e2e6b0c018541f6746d7f704bcb10743ca08ed53 /src | |
| parent | ab7b38d4b9c6673dc4adfaed7956984ec6bc8c9e (diff) | |
| download | mpd-e304d0f8ee404ef7e1223a324012d4fb4049185d.tar.gz mpd-e304d0f8ee404ef7e1223a324012d4fb4049185d.tar.xz mpd-e304d0f8ee404ef7e1223a324012d4fb4049185d.zip | |
thread/Posix{Cond,Mutex}: don't ues PTHREAD_*_INITIALIZER on NetBSD
On NetBSD, PTHREAD_MUTEX_INITIALIZER and PTHREAD_COND_INITIALIZER are
not compatible with C++11 "constexpr" (see Mantis ticket 0004110). As
a workaround, don't ues "constexpr", and use the functions
pthread_mutex_init(), pthread_mutex_destroy(), pthread_cond_init() and
pthread_cond_destroy() instead. This adds some runtime overhead, but
is portable to POSIX implementations that have awkward initializer
macros.
Diffstat (limited to 'src')
| -rw-r--r-- | src/notify.hxx | 2 | ||||
| -rw-r--r-- | src/thread/PosixCond.hxx | 14 | ||||
| -rw-r--r-- | src/thread/PosixMutex.hxx | 14 |
3 files changed, 29 insertions, 1 deletions
diff --git a/src/notify.hxx b/src/notify.hxx index 6b9e95368..1024dd8d9 100644 --- a/src/notify.hxx +++ b/src/notify.hxx @@ -28,7 +28,7 @@ struct notify { Cond cond; bool pending; -#ifndef WIN32 +#if !defined(WIN32) && !defined(__NetBSD__) constexpr #endif notify():pending(false) {} diff --git a/src/thread/PosixCond.hxx b/src/thread/PosixCond.hxx index 6f98d3ad0..c2797649a 100644 --- a/src/thread/PosixCond.hxx +++ b/src/thread/PosixCond.hxx @@ -41,7 +41,21 @@ class PosixCond { pthread_cond_t cond; public: +#ifdef __NetBSD__ + /* NetBSD's PTHREAD_COND_INITIALIZER is not compatible with + "constexpr" */ + PosixCond() { + pthread_cond_init(&cond, nullptr); + } + + ~PosixCond() { + pthread_cond_destroy(&cond); + } +#else + /* optimized constexpr constructor for sane POSIX + implementations */ constexpr PosixCond():cond(PTHREAD_COND_INITIALIZER) {} +#endif PosixCond(const PosixCond &other) = delete; PosixCond &operator=(const PosixCond &other) = delete; diff --git a/src/thread/PosixMutex.hxx b/src/thread/PosixMutex.hxx index d50764af4..445c0ace2 100644 --- a/src/thread/PosixMutex.hxx +++ b/src/thread/PosixMutex.hxx @@ -41,7 +41,21 @@ class PosixMutex { pthread_mutex_t mutex; public: +#ifdef __NetBSD__ + /* NetBSD's PTHREAD_MUTEX_INITIALIZER is not compatible with + "constexpr" */ + PosixMutex() { + pthread_mutex_init(&mutex, nullptr); + } + + ~PosixMutex() { + pthread_mutex_destroy(&mutex); + } +#else + /* optimized constexpr constructor for sane POSIX + implementations */ constexpr PosixMutex():mutex(PTHREAD_MUTEX_INITIALIZER) {} +#endif PosixMutex(const PosixMutex &other) = delete; PosixMutex &operator=(const PosixMutex &other) = delete; |