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[runtime/7.0] [mono] Raise soft RLIMIT_NOFILE on Linux #83078

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[runtime/7.0] [mono] Raise soft RLIMIT_NOFILE on Linux #83078

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33 changes: 18 additions & 15 deletions src/mono/mono/mini/driver.c
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Original file line number Diff line number Diff line change
Expand Up @@ -65,7 +65,7 @@
#include <string.h>
#include <ctype.h>
#include <locale.h>
#if TARGET_OSX
#ifdef HAVE_SYS_RESOURCE_H
# include <sys/resource.h>
#endif

Expand Down Expand Up @@ -1905,24 +1905,29 @@ switch_gc (char* argv[], const char* target_gc)
#endif
}

#ifdef TARGET_OSX

/*
* tries to increase the minimum number of files, if the number is below 1024
*/
static void
darwin_change_default_file_handles ()
increase_descriptor_limit (void)
{
#if defined(HAVE_GETRLIMIT) && !defined(DONT_SET_RLIMIT_NOFILE)
struct rlimit limit;

if (getrlimit (RLIMIT_NOFILE, &limit) == 0){
if (limit.rlim_cur < 1024){
limit.rlim_cur = MAX(1024,limit.rlim_cur);
setrlimit (RLIMIT_NOFILE, &limit);
}
if (getrlimit (RLIMIT_NOFILE, &limit) == 0) {
// Set our soft limit for file descriptors to be the same
// as the max limit.
limit.rlim_cur = limit.rlim_max;
#ifdef __APPLE__
// Based on compatibility note in setrlimit(2) manpage for OSX,
// trim the limit to OPEN_MAX.
if (limit.rlim_cur > OPEN_MAX)
limit.rlim_cur = OPEN_MAX;
#endif
setrlimit (RLIMIT_NOFILE, &limit);
}
#endif
}

#ifdef TARGET_OSX

static void
switch_arch (char* argv[], const char* target_arch)
{
Expand Down Expand Up @@ -2079,9 +2084,7 @@ mono_main (int argc, char* argv[])

setlocale (LC_ALL, "");

#if TARGET_OSX
darwin_change_default_file_handles ();
#endif
increase_descriptor_limit ();

if (g_hasenv ("MONO_NO_SMP"))
mono_set_use_smp (FALSE);
Expand Down