Limit pledge.com default virtual mem to total ram

examples/sysinfo.c

@@ -0,0 +1,78 @@
+#if 0
+/*─────────────────────────────────────────────────────────────────╗
+│ To the extent possible under law, Justine Tunney has waived      │
+│ all copyright and related or neighboring rights to this file,    │
+│ as it is written in the following disclaimers:                   │
+│   • http://unlicense.org/                                        │
+│   • http://creativecommons.org/publicdomain/zero/1.0/            │
+╚─────────────────────────────────────────────────────────────────*/
+#endif
+#include "libc/calls/struct/sysinfo.h"
+#include "libc/fmt/itoa.h"
+#include "libc/log/check.h"
+#include "libc/stdio/stdio.h"
+
+int main(int argc, char *argv[]) {
+  int64_t x;
+  char ibuf[21];
+  struct sysinfo si;
+  CHECK_NE(-1, sysinfo(&si));
+
+  printf("%-16s", "uptime");
+  x = si.uptime / (24 * 60 * 60);
+  si.uptime %= 24 * 60 * 60;
+  if (x) {
+    printf(" %ld day%s", x, x == 1 ? "" : "s");
+  }
+  x = si.uptime / (60 * 60);
+  si.uptime %= 60 * 60;
+  if (x) {
+    printf(" %ld hour%s", x, x == 1 ? "" : "s");
+  }
+  x = si.uptime / (60);
+  si.uptime %= 60;
+  if (x) {
+    printf(" %ld minute%s", x, x == 1 ? "" : "s");
+  }
+  x = si.uptime;
+  if (x) {
+    printf(" %ld second%s", x, x == 1 ? "" : "s");
+  }
+  printf("\n");
+
+  printf("%-16s %g %g %g\n", "load",  //
+         1. / 65536 * si.loads[0],    //
+         1. / 65536 * si.loads[1],    //
+         1. / 65536 * si.loads[2]);   //
+
+  FormatMemorySize(ibuf, si.totalram);
+  printf("%-16s %s\n", "totalram", ibuf);
+
+  FormatMemorySize(ibuf, si.freeram);
+  printf("%-16s %s\n", "freeram", ibuf);
+
+  FormatMemorySize(ibuf, si.sharedram);
+  printf("%-16s %s\n", "sharedram", ibuf);
+
+  FormatMemorySize(ibuf, si.bufferram);
+  printf("%-16s %s\n", "bufferram", ibuf);
+
+  FormatMemorySize(ibuf, si.totalswap);
+  printf("%-16s %s\n", "totalswap", ibuf);
+
+  FormatMemorySize(ibuf, si.freeswap);
+  printf("%-16s %s\n", "freeswap", ibuf);
+
+  printf("%-16s %lu\n", "processes", si.procs);
+
+  FormatMemorySize(ibuf, si.totalhigh);
+  printf("%-16s %s\n", "totalhigh", ibuf);
+
+  FormatMemorySize(ibuf, si.freehigh);
+  printf("%-16s %s\n", "freehigh", ibuf);
+
+  FormatMemorySize(ibuf, si.mem_unit);
+  printf("%-16s %s\n", "mem_unit", ibuf);
+
+  //
+}

test/tool/net/ljson_test.lua

@@ -218,5 +218,3 @@ function bench()
    print('JsonEncodeObj', Benchmark(JsonEncodeObject))
    print('BigString', Benchmark(BigString))
 end
-
-bench()

tool/build/pledge.c

@@ -19,6 +19,7 @@
 #include "libc/calls/calls.h"
 #include "libc/calls/struct/rlimit.h"
 #include "libc/calls/struct/sched_param.h"
+#include "libc/calls/struct/sysinfo.h"
 #include "libc/calls/syscall-sysv.internal.h"
 #include "libc/dce.h"
 #include "libc/errno.h"
@@ -103,11 +104,13 @@ const char *g_promises;
 
 static void GetOpts(int argc, char *argv[]) {
   int opt;
+  struct sysinfo si;
   g_promises = 0;
   g_proquota = GetCpuCount() * 2;
   g_fszquota = 256 * 1000 * 1000;
   g_fszquota = 4 * 1000 * 1000 * 1000;
   g_memquota = 4L * 1024 * 1024 * 1024;
+  if (!sysinfo(&si)) g_memquota = si.totalram;
   while ((opt = getopt(argc, argv, "hnNp:u:g:c:C:P:M:F:")) != -1) {
     switch (opt) {
       case 'n':