Commit 6b2cac62 authored by Uwe Schulzweida's avatar Uwe Schulzweida
Browse files

file::pagesize(): added patch from Harald Anlauf.

parent 19f6389a
......@@ -338,6 +338,35 @@ const char *fileLibraryVersion(void)
static
int pagesize(void)
{
static int my_pagesize = -1;
static bool _pagesize_init = false;
if (! _pagesize_init)
{
_pagesize_init = true;
char *envSize = getenv ("PBIO_PAGESIZE");
if (envSize != NULL)
{
int loop;
for (loop = 0; loop < (int) strlen(envSize) ; loop++)
{
if ( ! isdigit((int) envSize[loop]) )
{
printf("Invalid character in PBIO_PAGESIZE: %s\n", envSize);
printf("PBIO_PAGESIZE must comprise only digits [0-9].\n");
exit(EXIT_FAILURE);
}
}
my_pagesize = atol(envSize);
if (my_pagesize <= 0 || (my_pagesize & (my_pagesize-1)) != 0)
{
printf("Invalid value in PBIO_PAGESIZE: %s\n", envSize);
printf("Pagesize defined by PBIO_PAGESIZE must be power of 2.\n");
exit(EXIT_FAILURE);
}
}
}
if (my_pagesize > 0) return my_pagesize;
#ifdef _SC_PAGESIZE
return (int) sysconf(_SC_PAGESIZE);
#else
......
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