Open System Services System Calls Reference Manual (G06.29+, H06.08+, J06.03+)

pthread_setcancelstate(2) OSS System Calls Reference Manual
NAME
pthread_setcancelstate - Sets the calling thread’s cancelability state
LIBRARY
G-series native OSS processes: /G/system/sysnn/zsptsrl
32-bit H-series and J-series OSS processes that use the POSIX User Thread Model library:
/G/system/zdllnnn/zputdll
64-bit H-series and J-series OSS processes that use the POSIX User Thread Model library:
/G/system/zdllnnn/yputdll
H-series and J-series OSS processes that use the Standard POSIX Threads library:
/G/system/zdllnnn/zsptdll
SYNOPSIS
#include <pthread.h> | #include <spthread.h>
/* pthread.h is required to use POSIX User Thread Model library */
/* spthread.h is required to use Standard POSIX Threads library */
int pthread_setcancelstate(
int state,
int *oldstate);
PARAMETERS
state Specifies the new cancelability state for the calling thread. Valid values are:
PTHREAD_CANCEL_ENABLE
PTHREAD_CANCEL_DISABLE
oldstate Receives the previous cancelability state for the calling thread.
DESCRIPTION
This function sets the calling thread’s cancelability state to the value of the state parameter and
returns its previous cancelability state in the oldstate parameter.
When the cancelability state is set to PTHREAD_CANCEL_DISABLE, a cancelation request
cannot be delivered to the thread, even if a cancelable routine is called or an asynchronous
cancelability type is enabled.
When a thread is created, the default cancelability state is PTHREAD_CANCEL_ENABLE.
On systems running H06.21 or later H-series RVUs or J06.10 or later J-series RVUs, you can use
either the POSIX User Thread Model library or the Standard POSIX Threads library for threaded
applications.
To use this function in a threaded application that uses the POSIX User Thread Model library on
systems running H06.21 or later RVUs or J06.10 or later RVUs, you must perform all of the fol-
lowing tasks:
• Include the pthread.h header file in the application.
• Compile the application using the _PUT_MODEL_ feature test macro or equivalent
compiler command option.
• Link the application to the zputdll library (/G/system/zdllnnn/zputdll).
On systems running H06.24 or later H-series RVUs or J06.13 or later J-series RVUs, you can use
the POSIX User Thread Model library with 32-bit or 64-bit threaded applications.
To use this function in a 32-bit threaded application that uses the POSIX User Thread Model
library on systems running H06.24 or later RVUs or J06.13 or later RVUs, perform the same
tasks (described above) used to enable the POSIX User Thread Model library on systems running
H06.21/J06.10 or later RVUs.
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