NAME
ACE_Thread -
Provides a wrapper for threads.
SYNOPSIS
#include <ace/Thread.h >
class ACE_Thread
{
public:
static ACE_thread_t self (void);
static void self (ACE_hthread_t &t_id);
static void exit (void *status = 0);
static int spawn (
ACE_THR_FUNC func,
void *arg = 0,
long flags = THR_NEW_LWP,
ACE_thread_t *t_id = 0,
ACE_hthread_t *t_handle = 0,
u_int priority = 0,
void *stack = 0,
size_t stack_size = 0
);
static int spawn_n (
size_t n,
ACE_THR_FUNC func,
void *arg = 0,
long flags = THR_NEW_LWP,
u_int priority = 0,
void *stack[] = 0,
size_t stack_size[] = 0
);
static int spawn_n (
ACE_thread_t thread_ids[],
size_t n,
ACE_THR_FUNC func,
void *arg,
long flags,
u_int priority = 0,
void *stack[] = 0,
size_t stack_size[] = 0
);
static int join (ACE_thread_t, ACE_thread_t * = 0, void ** = 0);
static int join (ACE_hthread_t, void ** = 0);
static int resume (ACE_hthread_t);
static int suspend (ACE_hthread_t);
static int kill (ACE_thread_t, int signum);
static void yield (void);
static void self (ACE_hthread_t &t_id);
static ACE_thread_t self (void);
static void exit (void *status = 0);
static int getconcurrency (void);
static int setconcurrency (int new_level);
static int sigsetmask (
int how,
const sigset_t *set,
sigset_t *oset = 0
);
static int keycreate (ACE_thread_key_t *keyp, void (*destructor)(
void *value),
void * = 0
);
static int keyfree (ACE_thread_key_t key);
static int setspecific (ACE_thread_key_t key, void *value);
static int getspecific (ACE_thread_key_t key, void **valuep);
static int disablecancel (struct cancel_state *old_state);
static int enablecancel (
struct cancel_state *old_state,
int flag
);
static int setcancelstate (
struct cancel_state &new_state,
struct cancel_state *old_state
);
static int cancel (ACE_thread_t t_id);
static void testcancel (void);
private:
ACE_Thread (void);
ACE_Thread (void);
};
DESCRIPTION
This class provides a common interface that is mapped onto
either POSIX Pthreads, Solaris threads, or Win32 threads.
PUBLIC MEMBERS
static ACE_thread_t self (void);
Return the unique ID of the thread.
static void self (ACE_hthread_t &t_id);
Return the unique kernel ID of the thread.
static void exit (void *status = 0);
Exit the current thread and return "status".
static int spawn (
ACE_THR_FUNC func,
void *arg = 0,
long flags = THR_NEW_LWP,
ACE_thread_t *t_id = 0,
ACE_hthread_t *t_handle = 0,
u_int priority = 0,
void *stack = 0,
size_t stack_size = 0
);
Spawn a new thread, which executes "func" with argument "arg".
static int spawn_n (
size_t n,
ACE_THR_FUNC func,
void *arg = 0,
long flags = THR_NEW_LWP,
u_int priority = 0,
void *stack[] = 0,
size_t stack_size[] = 0
);
Spawn N new threads, which execute func with argument arg.
If stack != 0 it is assumed to be an array of n pointers to
the base of the stacks to use for the threads being spawned.
Likewise, if stack_size != 0 it is assumed to be an array of
n values indicating how big each of the corresponding stacks
are. Returns the number of threads actually spawned (if this
doesn't equal the number requested then something has gone wrong
and errno will explain...).
static int spawn_n (
ACE_thread_t thread_ids[],
size_t n,
ACE_THR_FUNC func,
void *arg,
long flags,
u_int priority = 0,
void *stack[] = 0,
size_t stack_size[] = 0
);
Spawn N new threads, which execute func with argument arg.
The thread_ids of successfully spawned threads will be placed
into the thread_ids buffer, which must be the same size as n.
If stack != 0 it is assumed to be an array of n pointers to
the base of the stacks to use for the threads being spawned.
Likewise, if stack_size != 0 it is assumed to be an array of
n values indicating how big each of the corresponding stacks
are. Returns the number of threads actually spawned (if this
doesn't equal the number requested then something has gone wrong
and errno will explain...).
static int join (ACE_thread_t, ACE_thread_t * = 0, void ** = 0);
Wait for one or more threads to exit.
static int join (ACE_hthread_t, void ** = 0);
Wait for one thread to exit.
static int resume (ACE_hthread_t);
Continue the execution of a previously suspended thread.
static int suspend (ACE_hthread_t);
Suspend the execution of a particular thread.
static int kill (ACE_thread_t, int signum);
Send a signal to the thread.
static void yield (void);
Yield the thread to another.
static void self (ACE_hthread_t &t_id);
Return the unique kernel ID of the thread.
static ACE_thread_t self (void);
Return the unique ID of the thread.
static void exit (void *status = 0);
Exit the current thread and return "status".
static int getconcurrency (void);
Get the LWP concurrency level of the process.
static int setconcurrency (int new_level);
Set the LWP concurrency level of the process.
static int sigsetmask (
int how,
const sigset_t *set,
sigset_t *oset = 0
);
Change and/or examine calling thread's signal mask.
static int keycreate (ACE_thread_key_t *keyp, void (*destructor)(
void *value),
void * = 0
);
Allocates a keyp that is used to identify data that is specific
to each thread in the process. The key is global to all threads
in the process.
static int keyfree (ACE_thread_key_t key);
Free up the key so that other threads can reuse it.
static int setspecific (ACE_thread_key_t key, void *value);
Bind value to the thread-specific data key, key, for the calling
thread.
static int getspecific (ACE_thread_key_t key, void **valuep);
Stores the current value bound to key for the calling thread
into the location pointed to by valuep.
static int disablecancel (struct cancel_state *old_state);
Disable thread cancellation.
static int enablecancel (struct cancel_state *old_state, int flag);
Enable thread cancellation.
static int setcancelstate (
struct cancel_state &new_state,
struct cancel_state *old_state
);
Set the cancellation state.
static int cancel (ACE_thread_t t_id);
static void testcancel (void);
PRIVATE MEMBERS
ACE_Thread (void);
Ensure that we don't get instantiated.
ACE_Thread (void);
Ensure that we don't get instantiated.
AUTHOR
Doug Schmidt
LIBRARY
ace