wifcontinued(statusreturns true if the process has resumed from job-control stop wifsignaled(statusreturns true if the process exited due to signal wifstopped(statusreturns true if the process has been stopped wstopsig(statusreturns the signal that caused the process to stop wtermsig(statusreturns the signal that caused the process to exit system configuration the following functions are used to obtain system configuration informationconfstr(namereturns string-valued system configuration variable name is string specifying the name of the variable the acceptable names are platform-specificbut dictionary of known names for the host system is found in os confstr_names if configuration value for specified name is not definedthe empty string is returned if name is unknownvalueerror is raised an oserror may also be raised if the host system doesn' support the configuration name the parameters returned by this function mostly pertain to the build environment on the host machine and include paths of system utilitiescompiler options for various program configurations (for example -bit bitand large-file support)and linker options (unixgetloadavg(returns -tuple containing the average number of items in the system run-queue over the last and minutes (unixsysconf(namereturns an integer-valued system-configuration variable name is string specifying the name of the variable the names defined on the host system can be found in the dictionary os sysconf_names returns - if the configuration name is known but the value is not defined otherwisea valueerror or oserror may be raised some systems may define more than different system parameters howeverthe following list details the parameters defined by posix that should be available on most unix systemsparameter description "sc_arg_maxmaximum length of the arguments that can be used with exec("sc_child_maxmaximum number of processes per user id "sc_clk_tcknumber of clock ticks per second "sc_ngroups_maxmaximum number of simultaneous supplementary group ids "sc_stream_maxmaximum number of streams process can open at one time lib fl ff