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Diffstat (limited to 'src/misc/util/datalimit.c')
| -rw-r--r-- | src/misc/util/datalimit.c | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/src/misc/util/datalimit.c b/src/misc/util/datalimit.c new file mode 100644 index 00000000..96c2ce95 --- /dev/null +++ b/src/misc/util/datalimit.c @@ -0,0 +1,95 @@ +/**CFile************************************************************************ + + FileName [datalimit.c] + + PackageName [util] + + Synopsis [Routine to obtain the maximum data size available to a program. The + routine is based on "getrlimit". If the system does not have this function, + the default value RLIMIT_DATA_DEFAULT is assumed. This function provides an + informative value, it does not restrict the size of the program in any way.] + + Author [Fabio Somenzi <fabio@colorado.edu>] + + Copyright [This file was created at the University of Colorado at + Boulder. The University of Colorado at Boulder makes no warranty + about the suitability of this software for any purpose. It is + presented on an AS IS basis.] + +******************************************************************************/ + +#include "util.h" + +static char rcsid[] UNUSED = "$Id: datalimit.c,v 1.1.1.1 2003/02/24 22:24:04 wjiang Exp $"; + +#if HAVE_SYS_RESOURCE_H +#if HAVE_SYS_TIME_H +#include <sys/time.h> +#endif +#include <sys/resource.h> +#endif + +/*---------------------------------------------------------------------------*/ +/* Type declarations */ +/*---------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------*/ +/* Structure declarations */ +/*---------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------*/ +/* Macro declarations */ +/*---------------------------------------------------------------------------*/ + +#ifndef RLIMIT_DATA_DEFAULT +#define RLIMIT_DATA_DEFAULT 67108864 /* assume 64MB by default */ +#endif + +/*---------------------------------------------------------------------------*/ +/* Variable declarations */ +/*---------------------------------------------------------------------------*/ + +/**AutomaticStart*************************************************************/ + +/*---------------------------------------------------------------------------*/ +/* Static function prototypes */ +/*---------------------------------------------------------------------------*/ + +/**AutomaticEnd***************************************************************/ + +/*---------------------------------------------------------------------------*/ +/* Definition of exported functions */ +/*---------------------------------------------------------------------------*/ + +/**Function******************************************************************** + + Synopsis [Function that computes the data limit of the process.] + + SideEffects [] + +******************************************************************************/ +int +getSoftDataLimit() +{ +#if HAVE_SYS_RESOURCE_H && HAVE_GETRLIMIT && defined(RLIMIT_DATA) + struct rlimit rl; + int result; + + result = getrlimit(RLIMIT_DATA, &rl); + if (result != 0 || rl.rlim_cur == RLIM_INFINITY) + return(RLIMIT_DATA_DEFAULT); + else + return(rl.rlim_cur); +#else + return(RLIMIT_DATA_DEFAULT); +#endif + +} /* end of getSoftDataLimit */ + +/*---------------------------------------------------------------------------*/ +/* Definition of internal functions */ +/*---------------------------------------------------------------------------*/ + +/*---------------------------------------------------------------------------*/ +/* Definition of static functions */ +/*---------------------------------------------------------------------------*/ |