SpQuerySysInfo

Returns values of static system variables.

Syntax: value = spQuerySysInfo (valueID)

Parameter: valueID – identifier of system variable to be queried.

Table 2 Value IDs for spQuerySysInfo

valueID	description
QSV_MAX_PATH_LENGTH	Maximum length, in bytes, of a path name.
QSV_MAX_TEXT_SESSIONS	Maximum number of text sessions.
QSV_MAX_PM_SESSIONS	Maximum number of PM sessions.
QSV_MAX_VDM_SESSIONS	Maximum number of DOS sessions.
QSV_BOOT_DRIVE	Drive from which the system was started (1 means drive A, 2 means drive B, and so on).
QSV_DYN_PRI_VARIATION	Dynamic priority variation flag (0 means absolute priority, 1means dynamic priority).
QSV_MAX_WAIT	Maximum wait in seconds.
QSV_MIN_SLICE	Minimum time slice in milliseconds.
QSV_MAX_SLICE	Maximum time slice in milliseconds.
QSV_PAGE_SIZE	Memory page size in bytes. This value is 4096 for the 80386 processor.
QSV_VERSION_MAJOR	Major version number.
QSV_VERSION_MINOR	Minor version number.
QSV_VERSION_REVISION	Revision number.
QSV_MS_COUNT	Value of a 32-bit, free-running millisecond counter. This value is zero when the system is started.
QSV_TIME_LOW	Low-order 32 bits of the time in seconds since January 1, 1970 at 0:00:00.
QSV_TIME_HIGH	High-order 32 bits of the time in seconds since January 1, 1970 at 0:00:00.
QSV_TOTPHYSMEM	Total number of bytes of physical memory in the system.
QSV_TOTRESMEM	Total number of bytes of resident memory in the system.
QSV_TOTAVAILMEM	Maximum number of bytes of memory that can be allocated by all processes in the system. This number is advisory and is not guaranteed, since system conditions change constantly.
QSV_MAXPRMEM	Maximum number of bytes of memory that this process can allocate in its private arena. This number is advisory and is not guaranteed, since system conditions change constantly.
QSV_MAXSHMEM	Maximum number of bytes of memory that a process can allocate in the shared arena. This number is advisory and is not guaranteed, since system conditions change constantly.
QSV_TIMER_INTERVAL	Timer interval in tenths of a millisecond.
QSV_MAX_COMP_LENGTH	Maximum length, in bytes, of one component in a path name.
QSV_FOREGROUND_FS_SESSION	Session ID of the current foreground full-screen session. Note that this only applies to full-screen sessions. The Presentation Manager session (which displays Viowindowed, PM, and windowed DOS Sessions) is full-screen session ID 1.
QSV_FOREGROUND_PROCESS	Process ID of the current foreground process.

Returns: Value of system variable.

Example Code:

/* uptime.cmd (spUtils Example Code) */
/* writes the time since last IPL to stdout */
CALL RXFUNCADD 'spLoadFuncs','spUtils','spLoadFuncs'
CALL spLoadFuncs

sec=spQuerySysInfo('QSV_MS_COUNT')%1000
SAY sec%86400    || ' day(s) ' ||,
  (sec%3600)//24 || ' hour(s) ' ||,
  (sec%60)//60   || ' minute(s) ' ||,
  sec//60        || ' second(s)'