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include/Zycore/API/Thread.h(3) Library Functions Manual include/Zycore/API/Thread.h(3)

NAME

include/Zycore/API/Thread.h

SYNOPSIS

#include <Zycore/Defines.h>
#include <Zycore/Status.h>

Functions


ZYCORE_EXPORT ZyanStatus ZyanThreadGetCurrentThread (ZyanThread *thread)
ZYCORE_EXPORT ZyanStatus ZyanThreadGetCurrentThreadId (ZyanThreadId *thread_id)
ZYCORE_EXPORT ZyanStatus ZyanThreadTlsAlloc (ZyanThreadTlsIndex *index, ZyanThreadTlsCallback destructor)
ZYCORE_EXPORT ZyanStatus ZyanThreadTlsFree (ZyanThreadTlsIndex index)
ZYCORE_EXPORT ZyanStatus ZyanThreadTlsGetValue (ZyanThreadTlsIndex index, void **data)
ZYCORE_EXPORT ZyanStatus ZyanThreadTlsSetValue (ZyanThreadTlsIndex index, void *data)

Function Documentation

ZYCORE_EXPORT ZyanStatus ZyanThreadGetCurrentThread (ZyanThread * thread)

Returns the handle of the current thread.

Parameters

thread Receives the handle of the current thread.

Returns

A zyan status code.

ZYCORE_EXPORT ZyanStatus ZyanThreadGetCurrentThreadId (ZyanThreadId * thread_id)

Returns the unique id of the current thread.

Parameters

thread_id Receives the unique id of the current thread.

Returns

A zyan status code.

ZYCORE_EXPORT ZyanStatus ZyanThreadTlsAlloc (ZyanThreadTlsIndex * index, ZyanThreadTlsCallback destructor)

Allocates a new Thread Local Storage (TLS) slot.

Parameters

index Receives the TLS slot index.
destructor A pointer to a destructor callback which is invoked to finalize the data in the TLS slot or ZYAN_NULL, if not needed.

The maximum available number of TLS slots is implementation specific and different on each platform:

•
Windows
•
A total amount of 128 slots per process are guaranteed
•
POSIX
•
A total amount of 128 slots per process are guaranteed
•
Some systems guarantee larger amounts like e.g. 1024 slots per process

Note that the invocation rules for the destructor callback are implementation specific and different on each platform:

•
Windows
•
The callback is invoked when a thread exits
•
The callback is invoked when the process exits
•
The callback is invoked when the TLS slot is released
•
POSIX
•
The callback is invoked when a thread exits and the stored value is not null
•
The callback is NOT invoked when the process exits
•
The callback is NOT invoked when the TLS slot is released

Returns

A zyan status code.

ZYCORE_EXPORT ZyanStatus ZyanThreadTlsFree (ZyanThreadTlsIndex index)

Releases a Thread Local Storage (TLS) slot.

Parameters

index The TLS slot index.

Returns

A zyan status code.

ZYCORE_EXPORT ZyanStatus ZyanThreadTlsGetValue (ZyanThreadTlsIndex index, void ** data)

Returns the value inside the given Thread Local Storage (TLS) slot for the calling thread.

Parameters

index The TLS slot index.
data Receives the value inside the given Thread Local Storage (TLS) slot for the calling thread.

Returns

A zyan status code.

ZYCORE_EXPORT ZyanStatus ZyanThreadTlsSetValue (ZyanThreadTlsIndex index, void * data)

Set the value of the given Thread Local Storage (TLS) slot for the calling thread.

Parameters

index The TLS slot index.
data The value to store inside the given Thread Local Storage (TLS) slot for the calling thread

Returns

A zyan status code.

Author

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Version 1.5.0.0 Zycore