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util.pposix: Avoid overflow of malloc info at 2GB (fixes #1445 until 4GB)

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Kim Alvefur 2019-11-16 16:45:33 +01:00
parent 49995f4ec4
commit d0cb023ea8
1 changed files with 5 additions and 5 deletions
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10
util-src/pposix.c
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@ -721,20 +721,20 @@ int lc_meminfo(lua_State *L) {
struct mallinfo info = mallinfo();
lua_createtable(L, 0, 5);
/* This is the total size of memory allocated with sbrk by malloc, in bytes. */
lua_pushinteger(L, info.arena);
lua_pushinteger(L, (unsigned)info.arena);
lua_setfield(L, -2, "allocated");
/* This is the total size of memory allocated with mmap, in bytes. */
lua_pushinteger(L, info.hblkhd);
lua_pushinteger(L, (unsigned)info.hblkhd);
lua_setfield(L, -2, "allocated_mmap");
/* This is the total size of memory occupied by chunks handed out by malloc. */
lua_pushinteger(L, info.uordblks);
lua_pushinteger(L, (unsigned)info.uordblks);
lua_setfield(L, -2, "used");
/* This is the total size of memory occupied by free (not in use) chunks. */
lua_pushinteger(L, info.fordblks);
lua_pushinteger(L, (unsigned)info.fordblks);
lua_setfield(L, -2, "unused");
/* This is the size of the top-most releasable chunk that normally borders the
end of the heap (i.e., the high end of the virtual address space's data segment). */
lua_pushinteger(L, info.keepcost);
lua_pushinteger(L, (unsigned)info.keepcost);
lua_setfield(L, -2, "returnable");
return 1;
}