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Use MemAvailable instead

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This commit is contained in:
Steel Titanium 2018-09-20 18:26:59 -04:00
parent 1199a5f9b4
commit a53f036149
1 changed files with 46 additions and 3 deletions
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49
src/sdl/i_system.c
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@ -124,6 +124,10 @@ typedef LPVOID (WINAPI *p_MapViewOfFile) (HANDLE, DWORD, DWORD, DWORD, SIZE_T);
#include "macosx/mac_resources.h"
#endif
#ifndef errno
#include <errno.h>
#endif
// Locations for searching the srb2.srb
#if defined (__unix__) || defined(__APPLE__) || defined (UNIXCOMMON)
#define DEFAULTWADLOCATION1 "/usr/local/share/games/SRB2"
@ -2712,9 +2716,31 @@ const char *I_LocateWad(void)
#ifdef __linux__
#define MEMINFO_FILE "/proc/meminfo"
#define MEMTOTAL "MemTotal:"
#define MEMAVAILABLE "MemAvailable:"
#define MEMFREE "MemFree:"
#define CACHED "Cached:"
#define BUFFERS "Buffers:"
#define SHMEM "Shmem:"
#endif
/* Parse the contents of /proc/meminfo (in buf), return value of "name"
* (example: MemTotal) */
static long get_entry(const char* name, const char* buf)
{
char* hit = strstr(buf, name);
if (hit == NULL) {
return -1;
}
errno = 0;
long val = strtol(hit + strlen(name), NULL, 10);
if (errno != 0) {
CONS_Alert(CONS_ERROR, M_GetText("get_entry: strtol() failed: %s\n"), strerror(errno));
return -1;
}
return val;
}
// quick fix for compil
UINT32 I_GetFreeMem(UINT32 *total)
{
@ -2809,7 +2835,17 @@ UINT32 I_GetFreeMem(UINT32 *total)
memTag += sizeof (MEMTOTAL);
totalKBytes = atoi(memTag);
if ((memTag = strstr(buf, MEMFREE)) == NULL)
if ((memTag = strstr(buf, MEMAVAILABLE)) == NULL)
{
Cached = get_entry(CACHED, buf);
MemFree = get_entry(MEMFREE, buf);
Buffers = get_entry(BUFFERS, buf);
Shmem = get_entry(SHMEM, buf);
MemAvailable = Cached + MemFree + Buffers - Shmem;
guessed = true;
}
if (MemAvailable == -1 && guessed)
{
// Error
if (total)
@ -2817,8 +2853,15 @@ UINT32 I_GetFreeMem(UINT32 *total)
return 0;
}
memTag += sizeof (MEMFREE);
freeKBytes = atoi(memTag);
if (guessed)
{
freeKBytes = MemAvailable;
}
else
{
memTag += sizeof (MEMAVAILABLE);
freeKBytes = atoi(memTag);
}
if (total)
*total = totalKBytes << 10;