Open System Services System Calls Reference Manual (G06.25+, H06.03+)

spt_system(2) OSS System Calls Reference Manual
NAME
spt_system - Initiates thread-aware system( ) function
LIBRARY
G-series native OSS processes: /G/system/sysnn/zsptsrl
H-series OSS processes: /G/system/zdllnnn/zsptdll
SYNOPSIS
#include <spthread.h>
int spt_system(
const char *command);
PARAMETERS
See the system(3) reference page either online or in the Open System Services Library Calls
Reference Manual.
DESCRIPTION
This is a thread-aware verison of the system() function. All threads in the process are tem-
porarily blocked while the child process, which performs the system( ) call, is created.
The following macro maps spt_system() to system() and has been defined in spthread.h:
#define system(command) spt_system(command)
This macro is available only when SPT_THREAD_AWARE has been defined before including
spthread.h, as follows:
#define SPT_THREAD_AWARE
RETURN VALUES
See the system(3) reference page. Also, if a signal is received via the pthread_kill() function
and is not blocked, ignored, or handled, -1 is returned with an errno value of [EINTR].
STANDARDS CONFORMANCE
This function is an extension to the XPG4 Version 2 specification. Interfaces documented on this
reference page conform to the following industry standards:
• IEEE Std 1003.1c-1995, POSIX System Application Program Interface
The use of the header file spthread.h is an HP exception to the POSIX standard.
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