ACE_Mutex
wrapper (valid in same process or across processes (depending on TYPE flag)). In general, however, we recommend using ACE_Process_Mutex or ACE_Thread_Mutex rather than ACE_Mutex.
More...
#include <Mutex.h>
Public Member Functions | |
ACE_Mutex (int type=USYNC_THREAD, const ACE_TCHAR *name=0, ACE_mutexattr_t *arg=0, mode_t mode=ACE_DEFAULT_FILE_PERMS) | |
Initialize the mutex. | |
~ACE_Mutex (void) | |
Implicitly destroy the mutex. | |
int | remove (void) |
Explicitly destroy the mutex. | |
int | acquire (void) |
Acquire lock ownership (wait on queue if necessary). | |
int | acquire (ACE_Time_Value &tv) |
int | acquire (ACE_Time_Value *tv) |
int | tryacquire (void) |
Conditionally acquire lock (i.e., don't wait on queue). | |
int | release (void) |
Release lock and unblock a thread at head of queue. | |
int | acquire_read (void) |
Acquire mutex ownership. | |
int | acquire_write (void) |
Acquire mutex ownership. | |
int | tryacquire_read (void) |
Conditionally acquire mutex (i.e., won't block). | |
int | tryacquire_write (void) |
Conditionally acquire mutex (i.e., won't block). | |
int | tryacquire_write_upgrade (void) |
const ACE_mutex_t & | lock (void) const |
Return the underlying mutex. | |
void | dump (void) const |
Dump the state of an object. | |
Public Attributes | |
ACE_ALLOC_HOOK_DECLARE | |
Declare the dynamic allocation hooks. | |
ACE_mutex_t | lock_ |
Mutex type supported by the OS. | |
bool | removed_ |
Private Member Functions | |
void | operator= (const ACE_Mutex &) |
ACE_Mutex (const ACE_Mutex &) |
ACE_Mutex
wrapper (valid in same process or across processes (depending on TYPE flag)). In general, however, we recommend using ACE_Process_Mutex or ACE_Thread_Mutex rather than ACE_Mutex. ACE_Mutex::ACE_Mutex | ( | int | type = USYNC_THREAD , |
|
const ACE_TCHAR * | name = 0 , |
|||
ACE_mutexattr_t * | arg = 0 , |
|||
mode_t | mode = ACE_DEFAULT_FILE_PERMS | |||
) |
Initialize the mutex.
ACE_Mutex::~ACE_Mutex | ( | void | ) |
Implicitly destroy the mutex.
ACE_Mutex::ACE_Mutex | ( | const ACE_Mutex & | ) | [private] |
int ACE_Mutex::acquire | ( | ACE_Time_Value * | tv | ) | [inline] |
Block the thread until the mutex is acquired or *tv times out, in which case -1 is returned and errno
== ETIME
. If tv == 0 then call acquire()
directly. Otherwise, block the thread until the mutex is acquired or tv times out, in which case -1 is returned and errno
== ETIME
.
int ACE_Mutex::acquire | ( | ACE_Time_Value & | tv | ) | [inline] |
Block the thread until the mutex is acquired or tv times out, in which case -1 is returned and errno
== ETIME
.
int ACE_Mutex::acquire | ( | void | ) | [inline] |
Acquire lock ownership (wait on queue if necessary).
int ACE_Mutex::acquire_read | ( | void | ) | [inline] |
Acquire mutex ownership.
This calls acquire
and is only here to make the ACE_Mutex
interface consistent with the other synchronization APIs.
int ACE_Mutex::acquire_write | ( | void | ) | [inline] |
Acquire mutex ownership.
This calls acquire
and is only here to make the ACE_Mutex
interface consistent with the other synchronization APIs.
void ACE_Mutex::dump | ( | void | ) | const |
Dump the state of an object.
const ACE_mutex_t & ACE_Mutex::lock | ( | void | ) | const [inline] |
Return the underlying mutex.
void ACE_Mutex::operator= | ( | const ACE_Mutex & | ) | [private] |
int ACE_Mutex::release | ( | void | ) | [inline] |
Release lock and unblock a thread at head of queue.
int ACE_Mutex::remove | ( | void | ) | [inline] |
Explicitly destroy the mutex.
int ACE_Mutex::tryacquire | ( | void | ) | [inline] |
Conditionally acquire lock (i.e., don't wait on queue).
errno
is set to EBUSY
. int ACE_Mutex::tryacquire_read | ( | void | ) | [inline] |
Conditionally acquire mutex (i.e., won't block).
This calls tryacquire
and is only here to make the ACE_Mutex
interface consistent with the other synchronization APIs.
errno
is set to EBUSY
. int ACE_Mutex::tryacquire_write | ( | void | ) | [inline] |
Conditionally acquire mutex (i.e., won't block).
This calls tryacquire
and is only here to make the ACE_Mutex
interface consistent with the other synchronization APIs.
errno
is set to EBUSY
. int ACE_Mutex::tryacquire_write_upgrade | ( | void | ) | [inline] |
This is only here for consistency with the other synchronization APIs and usability with Lock adapters. Assumes the caller already has acquired the mutex and returns 0 in all cases.
Declare the dynamic allocation hooks.
ACE_mutex_t ACE_Mutex::lock_ |
Mutex type supported by the OS.
bool ACE_Mutex::removed_ |
Keeps track of whether remove
has been called yet to avoid multiple remove
calls, e.g., explicitly and implicitly in the destructor. This flag isn't protected by a lock, so make sure that you don't have multiple threads simultaneously calling remove
on the same object, which is a bad idea anyway.